JPH06320896A - Squareness regulating method for plotter in x-y direction and the plotter used therefor - Google Patents

Abstract

PURPOSE:To facilitate regulation of a deviation of a squareness by so relatively moving a carriage in an X-Y direction based on a ratio of a deviation of the squareness obtained by a predetermined operation as to cancel the deviation of the squareness. CONSTITUTION:The case that L-shaped sides A1, A2, A4 in which sides A1, A2 directed in an X-direction of a rotated L-shaped side as one side to be directed in X-Y direction in such a manner that sides A2, A4 directed in a Y-direction are coincident in length with the sides A2, A3 directed in a Y- direction of the rotated L-shaped side are lap written on a sheet 10 by a pen held at a carriage is assumed by using calculating means. Then, a ratio of a deviation of a squareness of a moving route of the carriage in the X-Y direction is obtained from a deviation of a central position A5 of a side for connecting an end point A4 of a side directed in the Y-direction of the assumed L-shaped side to an end point A3 of the side directed in the Y-direction of the rotated L-shaped side by the calculating means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of adjusting a squareness of a movement path of a plotter carriage in XY directions and a plotter used for the method.

[0002]

2. Description of the Related Art Conventionally, the squareness of a moving path in the XY direction of a carriage which is relatively moved on the sheet in the XY direction is adjusted in the X direction and the Y direction on the sheet with a pen held by the carriage. Draw a square or rectangle with the side facing
Apply the section film (transparent graph paper film in which the ruled lines in the XY directions intersect at exactly right angles) on the sheet on which the square or rectangle was drawn, and correspond to the ruled lines of the section film. The angular deviation of the side facing the X direction with respect to the side facing the Y direction of the square or rectangle is measured. Then, based on the measurement result, the fixed position of the guide rail for movably supporting the carriage in the X direction with respect to the plotter body is finely mechanically adjusted so that the carriage movement path in the X direction is the carriage movement path in the Y direction. It is adjusted so that it is at a right angle to.

[0003]

However, when the squareness of the movement path of the carriage in the XY directions is adjusted as described above, in order to improve the accuracy of the squareness adjustment, It is necessary to draw a large square or rectangle on the, and measure the angular deviation of the sides of the large square or rectangle using a large section film.
When the squareness of the carriage in the XY directions is adjusted by the customer who has delivered the plotter, a large section film must be brought, which is troublesome.

Further, in the case of the paper moving type plotter shown in FIG. 11, when the squareness of the movement path of the carriage 86 in the XY directions is adjusted as described above, the carriage 86 is moved to the carriage 86. The movement path of the gripped pen 88 in the X direction is not necessarily parallel to the axial center direction of the synchro roller (not shown) provided immediately below the moving path of the pen 88, and is relative to the axial center direction of the synchro roller. When it is inclined, the writing pressure of the pen tip 88a pressed against the sheet 10 mounted on the peripheral surface of the synchro roller becomes uneven, and the figure, symbol, or line of characters to be drawn on the sheet 10 becomes faint. Then the image quality deteriorated. Here, the paper moving type plotter means that the carriage 86 is moved in the X direction on the sheet 10, and
It is a plotter of the type that moves the sheet 10 on the recording surface 84 in the Y direction perpendicular to the X direction. Further, the synchro roller is a roller provided immediately below the moving path of the pen 88 held by the carriage 86 of the paper moving type plotter, and its peripheral surface speed is Y on the recording surface 84.
A roller that rotates so as to approximately match the moving speed of the sheet 10 that is moved in the direction. If this synchronizing roller is provided directly below the moving path of the pen 88, the pen tip 88a
It is possible to move the sheet 10 portion to be pressed against the recording surface 84 in the Y direction at the same speed as other sheet 10 portions without stagnation, without catching the pen tip 88a on the pen tip 88a and holding it.

The present invention has been made in view of the above problems, and a carriage having a section film, a carriage set so as to be movable in parallel to the axis of a synchro roller of a paper moving type plotter, etc. A squareness adjustment method of the plotter in the XY directions, which can adjust the squareness of the movement path of the carriage in the XY directions without disturbing the movement path of the gripped pen. That is) and the plotter used for it.

[0006]

In order to achieve the above object, the first method of adjusting the perpendicularity of the present invention is characterized by including the following steps. a. X drawn on the sheet with the pen held in the carriage
-The step of rotating the L-shaped side facing the Y direction together with the sheet by 90 degrees. b. The step of measuring the positions of the left and right end points of the side of the L-shaped side rotated in the step a and facing the X direction. c. Based on the measurement value measured in the step b, the length of the L-shaped side that is oriented in the XY direction and has the side facing the X direction of the L-shaped side rotated in the step a as one side. Is a step of supposing that the L-shaped side corresponding to the length of the rotated L-shaped side in the Y direction is overwritten on the sheet by the pen held by the carriage. d. The center position of the side connecting the end point of the side facing the Y direction of the L-shaped side assumed in the step c and the end point of the side facing the Y direction of the L-shaped side rotated in the step a and the end point of the side A step of obtaining the ratio of the squareness deviation of the movement path of the carriage in the XY directions from the deviation amount. e. A step of relatively moving the carriage in the XY directions so as to cancel the squareness deviation based on the ratio of the squareness deviation obtained in the step d.

A first plotter according to the present invention is an L lens which is drawn on a sheet with a pen held by a carriage and is oriented in the XY directions.
Measuring means for measuring the positions of the left and right end points of the side of the L-shaped side, which is rotated 90 degrees with the sheet, in the X-direction, and based on the measurement values measured by the measuring means, the rotated L-shaped side. The L-shaped side having the side facing the X direction as one side and facing the XY direction, and the length of the side facing the Y direction is the rotated L side.
Assuming that an L-shaped side corresponding to the length of the side of the character facing the Y direction is overwritten on the sheet with a pen that is held by the carriage, the tip of the side of the assumed L-shaped side that faces the Y direction. The ratio of the squareness deviation of the movement path of the carriage in the XY directions from the deviation amount between the center position of the side connecting the point and the end point of the side of the rotated L-shaped side facing the Y direction and the end point of the side. Based on the ratio of the squareness deviations stored in the storage means, and the storage means for storing the ratio of the squareness deviations calculated by the calculation means. It is characterized in that it is provided with a moving means for relatively moving so as to offset each other.

The second method of adjusting the perpendicularity of the present invention is characterized by including the following steps. a. X drawn on the sheet with the pen held in the carriage
-The process of turning over the L-shaped side facing the Y direction together with the sheet. b. The step of measuring the positions of the left and right end points of the side of the L-shaped side turned upside down in the step a and facing the X direction. c. Based on the measurement value measured in the step b, the length of the L-shaped side that faces the X-Y direction with one side that faces the X direction of the L-shaped side that is turned inside out in the step a and that faces the Y direction is A step of supposing a case where an L-shaped side corresponding to the length of the side of the L-shaped side turned upside down in the Y direction is overwritten on the sheet with a pen held by a carriage. d. Deviation between the center position of the side connecting the end point of the side facing the Y direction of the L side assumed in the step c and the end point of the side facing the Y direction of the L side turned inside out in the step a and the end point of that side A step of obtaining the ratio of the squareness deviation of the movement path of the carriage in the XY directions from the amount. e. A step of relatively moving the carriage in the XY directions so as to cancel the squareness deviation based on the ratio of the squareness deviation obtained in the step d.

A second plotter according to the present invention is an L which is drawn on a sheet by a pen held by a carriage and which faces the XY directions.
Based on the measurement means for measuring the positions of the left and right end points of the side of the L-shaped side, which is turned upside down with the sheet, in the X direction, and the direction of the L-shaped turned upside down is turned to the X direction. The carriage is an L-shaped side having one side facing in the XY direction, and the length of the side facing the Y direction is the same as the length of the side facing the Y direction of the inverted L-shaped side. Assuming that the pen gripped on the sheet is overwritten on the sheet, the end point of the assumed L-shaped side facing the Y direction and the end point of the inverted L-shaped side facing the Y direction are defined. XY of the carriage from the deviation amount between the center position of the connecting side and the end point of the side
Calculating means for obtaining the ratio of the squareness deviation of the moving path in the direction, storage means for storing the ratio of the squareness deviation calculated by the calculating means, and the carriage based on the ratio of the squareness deviation stored in the storage means Is provided in the X-Y direction so as to offset the squareness deviation.

According to the first or second squareness adjusting method of the present invention, a of the first or second squareness adjusting method of the present invention is used.
Steps d to d are performed on the right side portion and the left side portion on the sheet respectively, and the average value of the ratios of the squareness deviations obtained from the steps a to d is used as the ratio of the squareness deviations of the carriage movement path in the XY directions. It is preferable that the carriage is relatively moved in the XY directions so as to cancel the squareness deviation based on the ratio of the squareness deviation.

Alternatively, the steps a to d of the first or second method of adjusting the squareness of the present invention are performed at the central portion of the sheet, and the ratio of the squareness deviations obtained from the steps a to d is taken as X- of the carriage. The ratio of the squareness deviation of the movement path in the Y direction,
It is preferable to relatively move the carriage in the XY directions so as to cancel the squareness deviation based on the ratio of the squareness deviation.

In the first or second squareness adjusting method of the present invention, it is preferable to perform the steps described in the first or second squareness adjusting method of the present invention for each sheet having a different size.

[0013]

In the first straightness adjusting method of the present invention, a
When the step d is performed, the end point of the side of the L-shaped side, which is assumed in the step c, facing the Y direction, and L, which is rotated by 90 degrees in the step a, are used.
The center position of the side connecting the end point of the side facing the Y direction of the character side and one end point of the side facing the X direction of the L-shaped side rotated 90 degrees in the step a or the L-shaped side assumed in step c The side connecting the one end point of the side facing the X direction is the side facing the X direction of the L-shaped side rotated 90 degrees in the step a or the side facing the X direction of the L-shaped side assumed in the step c and the step a. The tip of the side of the L side turned in 90 degrees in the Y direction and the Y of the L side assumed in step c
The directions are at right angles to the sides connecting the tip points of the facing sides.

The reason is that L rotated 90 degrees in the step a
A triangle composed of a side of the character side facing the Y direction, a side of the L-shaped side assumed in the step c in the Y direction, and a side connecting the end points of the sides facing the Y direction is an isosceles triangle. The center position of the side that connects the above-mentioned tip points that is the base of the triangle and the apex of the isosceles triangle that is 90 degrees rotated in step a in the L shape. One end of the side facing the X direction or the L shape assumed in step c. Y that connects to one end of the side facing the X direction of the side
The side that faces the direction is a bisector that bisects the interior angle of the apex of the isosceles triangle, and is the side that is oriented at a right angle to the base of the isosceles triangle. At the same time, the sum of the internal angle of the L-shaped side rotated by 90 degrees in the step a and the internal angle of the L-shaped side assumed in the step c becomes a right angle. This is because, when a pen gripped on the carriage draws a square or a rectangle on the sheet whose two opposite sides face the X direction and the Y direction, respectively, the square or the rectangle becomes a parallelogram.
The sum of adjacent interior angles of the parallelogram is two right angles, and the sum of the interior angle of the L-shaped side rotated 90 degrees in the step a and the interior angle of the L-shaped side assumed in step c corresponding to those interior angles is two. Because it becomes a right angle. As a result, the side facing the Y direction connecting the center position corresponding to the bisector of the isosceles triangle and the apex of the isosceles triangle is the side facing the X direction of the L-shaped side rotated by 90 degrees in the step a or A side of the L-shaped side that is assumed in the c step, a side that faces the Y direction of the L-shaped side that is rotated 90 degrees in the a step, and a side that faces the Y direction of the L-shaped side that is assumed in the c step. This is because they will be oriented in directions perpendicular to the sides connecting the tip points of.

Therefore, from the center position of the side connecting the end point of the side of the L-shaped side, which is assumed in the step c, in the Y direction and the end point of the side of the L-shaped side, which is rotated in the step a, facing the Y direction, The amount of deviation to the end point of the side is the X of the L-shaped side rotated by 90 degrees in the step a.
From the one end point of the side facing the direction or the one end point facing the X direction of the L side assumed in the c step, the tip point of the side facing the Y direction of the L side rotated 90 degrees in the a step and the c point. A value obtained by dividing the assumed L-shaped side by the distance to the center position of the side connecting the leading end point of the side facing the Y direction is the ratio of the squareness deviation of the movement path of the carriage in the XY directions.

Therefore, as described in the step e, the carriage is moved in the XY direction based on the ratio of the squareness deviation obtained in the step d.
By relatively moving the carriage so as to cancel the squareness deviation in the directions, the carriage can be relatively moved in the XY directions without the squareness deviation.

In the first plotter of the present invention, the a and b steps in the first squareness adjusting method of the present invention are performed using the measuring means, and the first squareness adjustment of the present invention is performed using the calculating means. By performing the steps c and d in the method, the ratio of the squareness deviation of the movement path of the carriage in the XY directions can be obtained, and the ratio of the squareness deviation can be stored in the storage means. Then, based on the ratio of the squareness deviation stored in the storage means, the moving means is used to relatively move the carriage in the XY direction so as to cancel the squareness deviation, thereby moving the carriage in the XY direction. It can be moved relative to each other without a right angle deviation.

In the second method of adjusting the perpendicularity of the present invention, when the steps a to d are performed, L assumed in step c is used.
The center position of the side connecting the end point of the side of the character side facing the Y direction and the end point of the side of the L-shaped side turned inside out in the a direction facing the Y direction and a
The L-side turned upside down in the step a is the L-side turned upside down in the step a or the end connecting to the X-direction of the side L-side assumed in the step c. Of the side facing the X direction or the side facing the X direction of the L side assumed in the step c and the end point of the side facing the Y direction of the L side turned over in the step a and c.
The directions are at right angles to the sides connecting the Y-direction sides of the L-shaped sides assumed in the process and the tip points of the sides.

The reason is that the Y of the L-shaped side turned upside down in the step a.
A triangle composed of a side facing the direction, a side facing the Y direction of the L-shaped side assumed in the step c, and a side connecting the end points of the sides facing the Y direction becomes an isosceles triangle and corresponds to the base of the isosceles triangle. One end point of the side facing the X direction of the L-shaped side turned over in the step a, which corresponds to the center position of the side connecting the above-mentioned tip points and the apex of the isosceles triangle, or X of the L-shaped side assumed in the step c.
The side facing the Y direction connecting one end point of the side facing the direction is
It is a bisector that bisects the interior angle of the apex of the isosceles triangle and is a side that is oriented at a right angle to the base of the isosceles triangle. At the same time, the sum of the internal angle of the L-shaped side turned over in the step a and the internal angle of the L-shaped side assumed in the step c becomes a right angle. This is because, when a pen gripped on the carriage draws a square or a rectangle on the sheet whose two opposite sides face the X direction and the Y direction, respectively, the square or rectangle becomes a parallelogram and The sum of the adjacent interior angles of the quadrangle is a right angle, and the sum of the interior angle of the L-shaped side turned over in step a and the interior angle of the L-shaped side assumed in step c is a right angle. is there. As a result, the side facing the Y direction connecting the center position corresponding to the bisector of the isosceles triangle and the vertex of the isosceles triangle is the side facing the X direction of the L-shaped side turned over in the step a or the step c. Connect the end point of the assumed L-shaped side facing the X direction and the end point of the L-shaped side turned over in the a step toward the Y direction and the end point of the assumed L-shaped side facing the Y direction in the c step. This is because they will face in a direction perpendicular to each side.

Therefore, from the center position of the side connecting the end point of the side of the L-shaped side, which is assumed in the step c, facing the Y direction, and the end point of the side of the L-shaped side, which is turned inside out in the step a, facing the Y direction, from that side. The amount of deviation up to the end point of the L-shaped side turned over in the a step from the one end point of the side facing the X direction of the L-shaped side or the one end point facing the X direction of the L-shaped side assumed in the c step The value divided by the distance to the center position of the side connecting the end point of the side facing the Y direction and the end point of the side facing the Y direction of the L-shaped side assumed in step c is the XY direction of the carriage. It is the ratio of the squareness deviation of the moving path of.

Therefore, as described in the step e, the carriage is moved in the XY direction based on the ratio of the squareness deviation obtained in the step d.
By relatively moving the carriage so as to cancel the squareness deviation in the directions, the carriage can be relatively moved in the XY directions without the squareness deviation.

In the second plotter of the present invention, the a and b steps in the second squareness adjusting method of the present invention are performed by using the measuring means, and the second squareness adjustment of the present invention is performed by using the calculating means. By performing the steps c and d in the method, the ratio of the squareness deviation of the movement path of the carriage in the XY directions can be obtained, and the ratio of the squareness deviation can be stored in the storage means. Then, based on the ratio of the squareness deviation stored in the storage means, the moving means is used to relatively move the carriage in the XY direction so as to cancel the squareness deviation, thereby moving the carriage in the XY direction. It can be moved relative to each other without a right angle deviation.

For example, by sandwiching the left and right side portions of the sheet between a pair of pinch rollers and a long drive roller,
In a paper moving type plotter in which a drive roller is rotated to move the sheet in the Y direction on the recording surface, the moving speeds of the left and right side portions of the sheet moving on the recording surface are slightly different from each other. This is because the long drive roller is not formed to have the exact same outer diameter over its entire length, and the outer side of the long drive roller portion that holds the left and right side portions of the sheet, respectively. This is because the diameters are slightly different. In such a plotter, the right angle portion and the left side portion on the sheet of the carriage that relatively move on the sheet in the XY direction are slightly different from each other in the squareness deviation of the movement path in the XY direction. come.

Therefore, according to the squareness adjusting method of the fifth aspect of the present invention, the steps a to d of the first or second straightness adjusting method of the present invention are performed on the right side portion and the left side portion on the seat. The average value of the ratios of the squareness deviations obtained from the steps a to d is set as the ratio of the squareness deviations of the carriage movement path in the XY directions, and the carriage is moved according to the ratio of the squareness deviations. By relatively moving the carriage in the −Y direction so as to offset the squareness deviation, the carriage can be relatively moved in the XY directions at various points on the sheet with a small squareness deviation.

Similarly, according to the squareness adjusting method of the sixth aspect of the present invention, the steps a to d of the first or the second squareness adjusting method of the present invention are performed in the central portion on the sheet, and The ratio of the squareness deviation obtained from the steps a to d is set as the ratio of the squareness deviation of the carriage movement path in the XY directions, and the squareness deviation of the carriage in the XY direction is calculated based on the ratio of the squareness deviation. By relatively moving so as to cancel each other, the carriage can be relatively moved in various places on the sheet in the XY directions with little squareness deviation.

For example, the left and right side portions of the sheet are sandwiched between a pair of pinch rollers and a long drive roller,
In a paper moving type plotter that moves the sheet in the Y direction on the recording surface by rotating the driving roller, if the size of the sheet to be moved on the recording surface is different, even if the driving roller is rotated at the same speed. , The moving speeds of the left and right side portions of the sheet moving on the recording surface are slightly different from each other. This is because when setting a sheet on the recording surface, the distance between the pair of pinch rollers is adjusted to a large or small value according to the width of sheets of different sizes, and the pair of pinch rollers and the long drive directly below it are driven. It is necessary to sandwich the left and right sides of the sheet with the roller part, and when doing so, the outer diameters of the long drive roller parts that sandwich the left and right sides of the sheets of different sizes are slightly different. It is due to coming.

Therefore, according to the squareness adjusting method of the seventh aspect of the present invention, the steps a to d of the first or the second squareness adjusting method of the present invention are performed for each sheet having a different size. The ratios of the squareness deviations obtained from the steps a to d can be used as the ratios of the squareness deviations of the carriage movement paths in the XY directions for the sheets having different sizes. Then, based on the ratio of the squareness deviations, the carriages are relatively moved in the XY directions so as to cancel the squareness deviations for the sheets of different sizes, so that the carriages of the sheets of different sizes are moved. They can be relatively moved in the XY directions with little deviation in the squareness.

[0028]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 shows a preferred embodiment of the first plotter of the present invention, showing in detail a block diagram thereof. The plotter will be described below.

In the plotter shown in the figure, the L-shaped sides A1, A2, A3 shown in FIG.
X of L-shaped sides A1, A2, A3 shown in FIG.
The measuring means 20 is provided for measuring the positions of the left and right end points A1 and A2 of the side facing the direction. As the measuring means 20, a jog key for moving the carriage of the plotter in the XY directions and a viewer (a part which projects an end point on a sheet directly below the plotter to the upper surface thereof) are used, and the carriage holding the viewer is jog keyed. Is operated to move the seat 10 in the XY directions, and the above-mentioned end point A on the seat 10 is directly below the viewer.
1, A2, respectively, and their end points A1, A2
Of the end points A by projecting
The positions of 1 and A2 can be accurately measured.

At the same time, the L-shaped side of the rotated L-shaped side has the sides A1 and A2 that face the X-direction as one side and that faces the XY direction.
The sides A1, A2, A4, which are the sides A2 facing the Y direction,
Side A whose length is A4 and which faces the Y direction of the rotated L-shaped side
Assuming that L-shaped sides A1, A2, and A4 corresponding to the lengths of 2 and A3 are overwritten on the sheet 10, the end point A4 of the side of the assumed L-shaped side facing the Y direction and the rotation described above. The side A connecting the end point A3 of the side of the L-shaped side facing the Y direction
A calculating unit 30 is provided for obtaining the ratio of the squareness deviation of the moving path of the carriage in the XY directions from the deviation amount between the central position A5 of A3 and A4 and the end point A3 or A4 of the side. The calculating means 30 is configured by using an electronic device with a built-in plotter, and drive control can be performed by operating a control key of the plotter.

Further, there is provided a storage means 40 for storing the ratio of squareness deviation calculated by the calculation means 30. A non-volatile memory such as an EEPROM is used as the storage means 40, and the storage means 4 is used even when the power of the plotter is turned off.
The squareness deviation ratio stored in 0 is not erased.

In addition, moving means 50 for relatively moving the carriage in the XY directions so as to cancel the squareness deviation based on the ratio of the squareness deviation stored in the storage means 40.
Is equipped with. The moving means 50 moves the carriage to the sheet 1.
And an X-direction drive unit 60 for moving the carriage relatively in the XY direction on the sheet 10 by the moving unit 50. The Y direction drive means 70 can be driven and controlled.

The first plotter shown in FIG. 1 is constructed as described above.

Next, a method of adjusting the squareness of the carriage movement path in the XY directions by the first squareness adjusting method of the present invention using the first plotter will be described.

As shown in FIG. 2, an L-shaped side A1 facing the XY direction on the sheet 10 with a pen held on the carriage,
Draw A2 and A3. Then, the L side A1, A
2. Rotate A3 and sheet 10 by 90 degrees.

Then, the positions of the left and right end points A1 and A2 of the side of the rotated L-shaped side facing the X direction are measured using the measuring means 20.

Next, as shown in FIG. 3, the sides A1 and A2 of the rotated L-shaped side facing the X direction are set as one side X.
-The lengths of the L-shaped sides A1, A2, A4 facing the Y direction, and the lengths of the sides A2, A4 facing the Y direction match the lengths of the sides A2, A3 of the rotated L-shaped side facing the Y direction. L side A
Sheet 1 with a pen that grips 1, A2 and A4 on the carriage
It is assumed that the data is overwritten on 0 using the calculation means 30.

Then, the center position A5 of the side connecting the end point A4 of the assumed L-shaped side facing the Y direction and the end point A3 of the rotated L-shaped side facing the Y direction and the side thereof. From the amount of deviation from the end point A3 or A4, the ratio of the squareness deviation of the carriage movement path in the XY directions is calculated using the calculating means 30. Specifically, L is obtained by rotating the above deviation amount by the above rotation.
One end point A2 facing the X direction of the character side or L as assumed above
The squareness deviation ratio of the movement path of the carriage in the XY directions is obtained by dividing by the distance from one end point A2 of the side of the character side facing the X direction to the central position A5.

Then, the ratio of the squareness deviation calculated by the calculating means 30 becomes the ratio of the squareness deviation of the movement path of the carriage in the XY directions.

The reason is that the sides A2 and A3 of the rotated L-shaped side facing the Y direction and the sides A2 and A4 of the assumed L-shaped side facing the Y direction and the tip points of those sides facing the Y direction. A
A triangle composed of a side connecting 3 and A4 is an isosceles triangle, and the sides A3 and A4 corresponding to the base of the isosceles triangle.
At the center position A5 and the apex of the isosceles triangle, one end point A2 of the rotated L-shaped side facing the X direction or one end point A of the assumed L-shaped side facing the X direction.
The sides A2 and A5 that connect to 2 and face in the Y direction are bisectors that divide the interior angle of the apex of the isosceles triangle into two equal parts, and the sides that are oriented at a right angle to the base of the isosceles triangle. Becomes Along with that, ∠A of the inner angle of the rotated L-shaped side
1, A2, A3 and ∠A1, which is the inner angle of the L side assumed above,
The sum of A2 and A4 is a right angle. This is because, as shown in FIG. 4, a square or a rectangle (two squares C1, C2, C in the drawing) whose opposing two sides face the X direction and the Y direction, respectively, on the sheet 10 with the pen held by the carriage.
3 and C4), the square or rectangle becomes a parallelogram, and the sum of the adjacent internal angles ∠C4, C1, C2 and ∠C1, C4, C3 of the parallelogram is It becomes two right angles, and ∠A1, A2, A3 of the interior angles of the rotated L-shaped side corresponding to those interior angles and the above assumed L
This is because the sum of the inner angles of the character sides and ∠A1, A2, A4 is a right angle. As a result, the sides A2 and A5 facing the Y direction connecting the center position corresponding to the bisector of the isosceles triangle and the vertices of the isosceles triangle are the sides A2 and A5 facing the X direction of the rotated L-shaped side, A2 or the end points of the sides A1 and A2 of the assumed L-shaped side facing the X direction and the end points of the rotated L-shaped side facing the Y direction and the end points of the assumed L-shaped side facing the Y direction. This is because the sides A3 and A4 that connect to and are oriented at right angles. Then, from the central position A5 of the side connecting the tip point A4 of the side of the assumed L-shaped side facing the Y direction and the tip point A3 of the side of the rotated L-shaped side facing the Y direction to the end point A3 of the side. Alternatively, the distance to A4 is the one of the end points A2 of the side of the rotated L-shaped side facing the X direction or the one of the end points A2 of the assumed L-shaped side facing the X direction of the rotated L-shaped side. XY of the carriage when the carriage is moved in the Y direction to the center position A5 of the side connecting the tip point A3 of the side facing the Y direction and the tip point A4 of the side facing the Y direction of the above-mentioned L-shaped side The deviation amount of the squareness of the moving path in the direction is divided by the distance from the one end point A2 to the central position A5, and the value of the deviation of the squareness of the moving path of the carriage in the XY directions is obtained. This is because it becomes a ratio.

Next, the storage means 40 stores the ratio of the squareness deviation obtained by using the calculating means 30.

Next, based on the ratio of the squareness deviation stored in the storage means 40, the moving means 50 is used to relatively move the carriage on the sheet 10 in the XY directions so as to cancel the squareness deviation. Let

Then, the carriage is moved on the sheet 10 by X-
It can be moved relatively in the Y direction without deviation from the right angle.

The first squareness adjusting method of the present invention shown in FIGS. 2 and 3 comprises the above steps.

FIG. 5 shows a preferred embodiment of the second plotter of the present invention, and its block diagram is shown in detail. The plotter will be described below.

In the plotter shown in FIG. 7, L-sides B1, B2 and B3 shown in FIG. 6 which are drawn on the sheet 10 with the pen held on the carriage and are oriented in the XY direction are turned upside down together with the sheet 10 and shown in FIG. Measuring means 2 for measuring the positions of left and right end points B1, B2 of the sides of the L-shaped sides B1, B2, B3 facing the X direction.
It has 0. As the measuring means 20, the same jog key and viewer of the plotter as described above are used, and the carriage holding the viewer is operated by operating the jog key.
Move the top in the XY direction and seat 10 directly below the viewer.
By arranging the above-mentioned end points B1 and B2 respectively and projecting the end points B1 and B2 on the upper surface of the viewer, the positions of the end points B1 and B2 can be accurately measured.

At the same time, there are L-shaped sides B1, B2, B4 oriented in the XY direction, with the sides B1, B2 facing the X direction of the inverted L-shaped side being one side, and the side B2 oriented in the Y direction. B
A side B2 having a length of 4 facing the Y direction of the L-shaped side turned upside down,
Assuming that an L-shaped side corresponding to the length of B3 is overwritten on the sheet 10, the end point B4 of the side facing the Y direction of the assumed L-shaped side and the Y direction of the inverted L-shaped side described above. Calculating means for obtaining the ratio of the squareness deviation of the movement path of the carriage in the XY direction from the deviation amount between the center position B5 of the sides B3 and B4 connecting the tip point B3 of the side facing the side and the end point B3 or B4 of the side. Equipped with 30. The calculating means 30 is configured by using an electronic device with a built-in plotter, and drive control can be performed by operating a control key of the plotter.

Further, a storage means 40 for storing the ratio of the squareness deviation obtained by the calculation means 30 is provided. A non-volatile memory such as an EEPROM is used as the storage means 40, and the storage means 4 is used even when the power of the plotter is turned off.
The squareness deviation ratio stored in 0 is not erased.

In addition, the moving means 50 for relatively moving the carriage in the XY directions so as to cancel the squareness deviation based on the ratio of the squareness deviation stored in the storage means 40.
Is equipped with. The moving means 50 moves the carriage to the sheet 1.
0 is configured by using an electronic device that relatively moves in the XY directions, and X-direction driving means 60 and Y that relatively move the carriage in the XY directions on the sheet 10 by the moving means 50. The direction drive means 70 can be driven and controlled.

The second plotter shown in FIG. 5 is constructed as described above.

Next, a method of adjusting the squareness of the movement path of the carriage in the XY directions by the second squareness adjusting method of the present invention using this second plotter will be described.

As shown in FIG. 6, an L-shaped side B1 facing the XY direction on the sheet 10 with a pen held on the carriage,
Draw B2 and B3. Then, the L side B1, B
Turn B2 and B3 together with sheet 10. A transparent or nearly transparent sheet is used as the sheet 10 used in this second perpendicularity adjusting method, and when the sheet 10 is turned upside down, the sheet 1
0 It is recommended that the L-shaped side drawn on the back side be clearly visible.

Next, the positions of the left and right end points B1 and B2 of the side of the flipped L-shaped side facing the X direction are measured using the measuring means 20.

Next, an L-shaped side B facing in the XY direction with the sides B1 and B2 facing the X direction of the L-shaped side turned upside down as one side.
1, B2, B4, the sides B2, B4 of which the lengths of the sides B2, B4 facing the Y direction are the sides of the L-shaped side turned upside down and facing the Y direction.
It is assumed that the calculation means 30 is used to overwrite the sheet 10 with the L-shaped sides B1, B2, and B4 that match the length of the sheet with the pen held by the carriage.

Next, the center position B5 of the side connecting the tip point B4 of the side of the assumed L-shaped side facing the Y direction and the tip point B3 of the side of the L-shaped side turned upside down facing the Y direction and the side thereof. From the deviation amount from the end point B3 or B4, the ratio of the squareness deviation of the carriage movement path in the XY directions is calculated using the calculating means 30. Specifically, from the one end point B2 facing the X direction of the L-shaped side that has turned the above-mentioned deviation amount or from the one end point B2 of the assumed L-shaped side facing the X direction, the center position B
Dividing by the distance up to 5, the ratio of the squareness deviation of the carriage movement path in the XY directions is obtained.

Then, the ratio of the squareness deviation calculated by the calculating means 30 becomes the ratio of the squareness deviation of the movement path of the carriage in the XY directions.

The reason for this is that the sides B2 and B3 of the inverted L-shaped side facing the Y direction, the sides B2 and B4 of the assumed L-shaped side facing the Y direction, and the end points B of those sides facing the Y direction.
A triangle composed of a side connecting 3 and B4 is an isosceles triangle, and the sides B3 and B4 corresponding to the base of the isosceles triangle.
B5 and one end point B2 of the side of the inverted L-shaped side facing the X direction that corresponds to the vertex of the isosceles triangle, or one end point B2 of the side of the assumed L-shaped side facing the X direction.
Sides B2 and B5 connecting in the Y direction that connect to and are the bisectors that divide the interior angle of the apex of the isosceles triangle into two equal parts, and the sides that face the direction perpendicular to the base of the isosceles triangle. Become.
Along with that, ∠B1 and B of the inside angle of the L-shaped side turned upside down
2, B3 and ∠B1, B2 of the inner angle of the L side assumed above,
The sum with B4 is a right angle. Because, as shown in FIG. 8, on the sheet 10 with the pen held in the carriage,
Squares or rectangles (two squares D1, D2, D3, D4 in the figure) whose two opposite sides face the X direction and the Y direction, respectively.
) Is drawn, the square or rectangle becomes a parallelogram, and the ∠ of the adjacent interior angles of the parallelogram
The sum of D1, D2, D3 and ∠D2, D1, D4 is a right angle, and ∠B1, B2, B3 of the inside angle of the above-mentioned inverted L-shaped side corresponding to those interior angles and the interior angle of the above-mentioned L-shaped side This is because the sum of ∠B1, B2 and B4 is a right angle. As a result, the sides B2 and B5 facing the Y direction connecting the center position corresponding to the bisector of the isosceles triangle and the apex of the isosceles triangle are the sides B1 and B2 facing the X direction of the inverted L-shaped side. Or, the side B facing the X direction of the L side assumed above
1, B2 and the directions perpendicular to the sides B3 and B4 connecting the tip points of the sides of the inverted L-shaped side facing the Y direction and the tip points of the assumed L-shaped side facing the Y direction, respectively. Because it will turn. Then, the tip point B4 of the side of the assumed L-shaped side facing the Y direction and the Y of the inverted L-shaped side.
The distance from the central position B5 of the side connecting the end point B3 of the side facing the direction to the end point B3 or B4 of the side is the one end point B2 of the side facing the X direction of the above-mentioned inverted L-shaped side or the above assumption. The deviation amount of the squareness of the movement path of the carriage in the XY directions when the carriage is moved in the Y direction from one end point B2 facing the X direction of the L-shaped side to the central position B5, and the deviation amount. Divided by the distance from the one end point B2 to the central position B5 is the carriage X-
This is because it is the ratio of the squareness deviation of the movement path in the Y direction.

Next, the storage means 40 stores the ratio of the squareness deviation obtained by using the calculating means 30.

Then, based on the ratio of the squareness deviation stored in the storage means 40, the moving means 50 is used to relatively move the carriage on the sheet 10 in the XY directions so as to cancel the squareness deviation. Let

Then, the carriage is moved on the sheet 10 by X-
It can be moved relatively in the Y direction without deviation from the right angle.

The second method of adjusting the perpendicularity of the present invention shown in FIGS. 6 and 7 comprises the above steps.

FIG. 9 or FIG. 10 uses the above-described first or second plotter of the present invention to adjust the squareness of the carriage movement path in the XY directions by the first or second squareness adjustment method of the present invention. 7 illustrates another preferred method of doing. Below, this squareness adjustment method is demonstrated.

As shown in FIG. 9, using the first or second plotter of the present invention, the first or second squareness adjusting method of the present invention (in the figure, the first squareness of the present invention is used). The right-side portion and the left-side portion on the sheet 10 are respectively calculated by the adjustment method). Then, the average value of the ratios of the squareness deviations is set as the ratio of the squareness deviations of the movement path of the carriage in the XY directions.

Alternatively, as shown in FIG. 10, the first or second straightness adjusting method of the present invention described above using the first or second plotter of the present invention (in the drawing, the first straightness adjustment method of the present invention is used). The angle adjustment method is used) to determine the ratio of squareness deviation of the carriage movement path in the XY directions at the central portion of the sheet 10. Then, the ratio of the squareness deviation is set as the ratio of the squareness deviation of the movement path of the carriage in the XY directions.

Then, based on the ratio of the squareness deviation, the moving means 50 is used to relatively move the carriage in the XY directions so as to cancel the squareness deviation.

Then, the carriage can be relatively moved in various places on the sheet 10 in the XY directions with little deviation in the squareness.

The reason for this is, for example, as shown in FIG. 11, the left and right side portions of the sheet 10 are sandwiched between a pair of pinch rollers 82 and a long drive roller 80, and the drive roller 80 is rotated. Thus, in a paper moving type plotter that moves the sheet 10 on the recording surface 84 in the Y direction, the moving speeds of the left and right side portions of the sheet 10 that move on the recording surface 84 are slightly different from each other. This is because the long drive roller 80 is not formed to have the exact same outer diameter over its entire length, and the left and right side portions of the sheet 10 are sandwiched by the long drive roller 80. This is because the outer diameters of the parts are slightly different. In such a plotter, the squareness deviations of the movement paths in the XY directions between the right side portion and the left side portion of the carriage 86 that relatively move the sheet 10 in the XY directions are subtle. Will be different.

Therefore, as described above, the right side portion and the left side portion on the seat 10 are processed by the first or second squareness adjusting method of the present invention using the first or second plotter of the present invention. The average value of the squareness deviation ratios obtained by and is set as the squareness deviation ratio of the movement path of the carriage 86 in the XY directions, or the squareness deviation ratio obtained at the central portion of the sheet 10 is set as the carriage 86. The ratio of the deviation of the squareness of the movement path in the XY direction is set, and the carriage 86 is relatively moved in the XY direction so as to cancel the deviation of the squareness based on the ratio of the deviation of the squareness. By doing so, the carriage 86 can be relatively moved in various places on the sheet 10 in the XY directions with little squareness deviation.

The present invention shown in FIGS. 2 and 3, FIG. 6 and FIG. 7, FIG. 9 or FIG. 10 using the first or second plotter of the present invention shown in FIGS. The first or second
When performing the squareness adjustment of the movement path of the carriage in the XY directions by the squareness adjustment method of No. 3, the steps described in the first or second squareness adjustment method of the present invention are performed for each sheet 10 having a different size. It is preferable to adjust the squareness of the movement path of the carriage in the XY directions for each sheet 10 having a different size. In that case, the first aspect of the present invention described above.
Alternatively, the ratios of the squareness deviations of the sheets 10 having different sizes obtained by performing the steps described in the second squareness adjusting method are stored in the storage means 40 of the first or second plotter of the present invention. , A size of the sheet 10 to be used is selected based on the ratio of the squareness deviations selected from the ratios of the squareness deviations stored in the storage means 40. Therefore, it is preferable to move the carriage 86 relatively in the XY directions so as to cancel the squareness deviation.

The reason is that, for example, in the paper moving type plotter as shown in FIG.
If the size of the sheet 10 is different, the sheet 1 that moves on the recording surface 84 even if the drive roller 80 is rotated at the same speed.
The moving speeds of the left and right side portions of 0 are slightly different from each other. This is because when the sheets 10 are set on the recording surface 84, the sheets 1 of different sizes are
The distance between the pair of pinch rollers 82 is adjusted to be large or small according to the width of 0, and the left and right side portions of the sheet 10 are respectively sandwiched between the pair of pinch rollers 82 and the long drive roller 80 portion thereunder. This is because the outer diameters of the long drive rollers 80 that sandwich the left and right side portions of the sheets 10 having different sizes are slightly different from each other.

Therefore, a to d of the first or second perpendicularity adjusting method of the present invention is applied to each sheet 10 having a different size.
The respective steps are performed, and the ratios of the squareness deviations obtained from the steps a to d are set as the ratios of the squareness deviations of the movement paths of the carriage 86 in the XY directions of the sheets 10 having different sizes, respectively. Based on the ratio of the squareness deviations, the carriages 86 are relatively moved in the XY directions so as to cancel the squareness deviations for each of the sheets 10 of different sizes. This is because the 86 can be relatively moved in the XY directions with little squareness deviation.

Further, according to the first or second perpendicularity adjusting method of the present invention using the first or second plotter of the present invention, not only the plotter holding the pen on the carriage but also the cutter holding on the carriage. It can also be used for cutting plotters.

[0073]

As described above, by using the first or second plotter of the present invention, the straightness of the movement path of the carriage in the XY directions is adjusted by the first or second straightness adjusting method of the present invention. If the misalignment is adjusted, bring a large section film to the customer, etc., and take a lot of time and effort to fix the fixed position of the guide rail that supports the carriage movably in the X direction to the plotter body. Since it is not necessary to make fine adjustment, it is possible to easily and quickly adjust the perpendicularity deviation of the carriage in the XY directions by using an electronic device having a built-in plotter.

At the same time, in a paper moving type plotter or the like, the movement path of the pen held by the carriage set to be parallel to the axis of the synchro roller is not changed, and the movement of the pen in the XY direction is prevented. Since the perpendicularity deviation of the moving path can be adjusted, and the rectangularity of the moving path in the XY directions of the carriage is adjusted, the moving path of the pen gripped by the carriage is inclined with respect to the axis of the synchro roller, etc. In this state, the writing pressure of the pen pressed against the sheet becomes uneven, and the image quality of the figure, symbol, or character drawn on the sheet by the pen held by the carriage can be prevented from deteriorating.

[Brief description of drawings]

FIG. 1 is a block diagram of a first plotter of the present invention.

FIG. 2 is an explanatory diagram of a first perpendicularity adjusting method of the present invention.

FIG. 3 is an explanatory diagram of a first perpendicularity adjusting method of the present invention.

FIG. 4 is an explanatory diagram of a first perpendicularity adjusting method of the present invention.

FIG. 5 is a block diagram of a second plotter of the present invention.

FIG. 6 is an explanatory diagram of a second squareness adjusting method of the present invention.

FIG. 7 is an explanatory diagram of a second squareness adjusting method of the present invention.

FIG. 8 is an explanatory diagram of a second squareness adjusting method of the present invention.

FIG. 9 is an explanatory diagram of a first or second squareness adjusting method of the present invention.

FIG. 10 is an explanatory diagram of a first or second squareness adjusting method of the present invention.

FIG. 11 is a perspective view of a paper moving type plotter.

[Explanation of symbols]

 10 sheet 20 measuring means 30 calculating means 40 storage means 50 moving means 60 X-direction driving means 70 Y-direction driving means 80 driving roller 82 pinch roller 84 recording surface 86 carriage 88 pen

Claims (7)

[Claims] 1. A method for adjusting a squareness in a XY direction of a plotter, which comprises the following steps. a. X drawn on the sheet with the pen held in the carriage
-The step of rotating the L-shaped side facing the Y direction together with the sheet by 90 degrees. b. The step of measuring the positions of the left and right end points of the side of the L-shaped side rotated in the step a and facing the X direction. c. Based on the measurement value measured in the step b, the length of the L-shaped side that is oriented in the XY direction and has the side facing the X direction of the L-shaped side rotated in the step a as one side. Is a step of supposing that the L-shaped side corresponding to the length of the rotated L-shaped side in the Y direction is overwritten on the sheet by the pen held by the carriage. d. The center position of the side connecting the end point of the side facing the Y direction of the L-shaped side assumed in the step c and the end point of the side facing the Y direction of the L-shaped side rotated in the step a and the end point of the side A step of obtaining the ratio of the squareness deviation of the movement path of the carriage in the XY directions from the deviation amount. e. A step of relatively moving the carriage in the XY directions so as to cancel the squareness deviation based on the ratio of the squareness deviation obtained in the step d. 2. The position of the left and right end points of the side facing the X direction of the L side that is rotated 90 degrees with the sheet on the L side that faces the XY direction drawn on the sheet with the pen held on the carriage is measured. Based on the measuring means and the measured value measured by the measuring means, the side of the rotated L-shaped side that faces the X direction is one L-side that faces the XY direction and that faces the Y direction. Assuming that the L-shaped side whose length corresponds to the length of the side of the rotated L-shaped side facing the Y direction is overwritten on the sheet with the pen held by the carriage, the assumed L-shaped side The XY direction of the carriage is calculated from the amount of deviation between the center position of the side connecting the end point of the side facing the Y direction and the end point of the rotated L-shaped side facing the Y direction and the end point of the side. Calculating means for obtaining the ratio of squareness deviation of the moving path of the Storage means for storing the ratio,
A plotter comprising: a moving unit that relatively moves the carriage in the XY directions so as to cancel the squareness deviation based on the ratio of the squareness deviation stored in the storage unit. 3. A method for adjusting a squareness of a plotter in the XY directions, including the following steps. a. X drawn on the sheet with the pen held in the carriage
-The process of turning over the L-shaped side facing the Y direction together with the sheet. b. The step of measuring the positions of the left and right end points of the side of the L-shaped side turned upside down in the step a and facing the X direction. c. Based on the measurement value measured in the step b, the length of the L-shaped side that faces the X-Y direction with one side that faces the X direction of the L-shaped side that is turned inside out in the step a and that faces the Y direction is A step of supposing a case where an L-shaped side corresponding to the length of the side of the L-shaped side turned upside down in the Y direction is overwritten on the sheet with a pen held by a carriage. d. Deviation between the center position of the side connecting the end point of the side facing the Y direction of the L side assumed in the step c and the end point of the side facing the Y direction of the L side turned inside out in the step a and the end point of that side A step of obtaining the ratio of the squareness deviation of the movement path of the carriage in the XY directions from the amount. e. A step of relatively moving the carriage in the XY directions so as to cancel the squareness deviation based on the ratio of the squareness deviation obtained in the step d. 4. A measuring means for measuring the positions of the left and right end points of the L-shaped side, which is drawn on the sheet with a pen held by the carriage, and which is turned over together with the sheet and which is turned over together with the sheet. , Based on the measurement value measured by the measuring means,
An X-side having the side facing the X direction of the L-shaped side turned upside down as one side
The L-shaped side facing the Y-direction, the length of the side facing the Y-direction being equal to the length of the side facing the Y-direction of the inverted L-shaped side, is held on the sheet with a pen gripping the carriage. Assuming the case of overwriting, the center position of the side connecting the end point of the side of the assumed L-shaped side facing the Y direction and the end point of the side of the inverted L-shaped side facing the Y direction and its Calculation means for obtaining the ratio of the squareness deviations of the carriage movement path in the XY directions, storage means for storing the ratio of the squareness deviations obtained by the calculation means, and storage means therefor. The carriage based on the ratio of squareness deviation stored in
A plotter including: a moving unit that relatively moves in the Y direction so as to offset the squareness deviation. 5. The steps a to d according to claim 1 or 3 are respectively performed on the right side portion and the left side portion on the sheet, and the average value of the ratios of the squareness deviations obtained from the steps a to d is calculated as the average value of the carriage. A plotter characterized in that the ratio of the squareness deviation of the movement path in the XY directions is set, and the carriage is relatively moved in the XY directions so as to cancel the squareness deviation based on the ratio of the squareness deviation. How to adjust squareness in XY direction. 6. The steps a to d according to claim 1 or 3 are performed in the central portion of the sheet, and the ratio of the squareness deviation obtained from the steps a to d is used as the straightness of the movement path of the carriage in the XY directions. An angle deviation ratio, and based on the ratio of the squareness deviations, the carriage is relatively moved in the XY directions so as to cancel the squareness deviations. Method. 7. The sheet according to claim 1, wherein each sheet has a different size.
A method for adjusting a squareness in a XY direction of a plotter, which comprises performing the steps 3, 5 or 6.