JPH01135672A - Feeder for sheet-form material - Google Patents

Abstract

PURPOSE:To automatically supply a sheet-form material at a fixed tension when it is loaded between supply rollers in the state of being wound in rolled form, by a construction wherein respective rollers forming a roller mechanism can be rotated forward/reverse in a fixed rotating speed ratio. CONSTITUTION:By operating an operation button on an operation panel 44, supply rollers 25a..., 25b... are rotated in the direction of feeding a sheet-form material 43a. Then, the sheet-form material 43a is payed out, and the leading end of the sheet-form material 43a is led upwards along the inner surface of a guide 36 to be disposed nearly between a working roller 3 and a pressure roller 5 through a supply path between the guide 36 and a guide 37. A cam 10 is rotated by rotating a knob 12, an arm 6 is rotated counterclockwise about a shaft 9, the pressure roller 5 is raised, the leading end of the sheet-form material 43a is led into a position between the working roller 3 and the pressure roller 5. When the leading end passes through the position, the cam 10 is returned to the former state, and the pressure roller 5 is lowered on the working roller 3. Then, the material 43a is fed out from between an adjusting roller 13 and the pressure roller 15 through a working table 2.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a feeding device for sheet-like materials, and more particularly, to a sheet-like material that is optimal for automatically feeding a rolled-up sheet-like material. This invention relates to a feeding device for objects.

(Prior art) For example, in automatic drawing machines, automatic pattern cutting machines, etc.
An automatic feeding device for sheet materials such as cut sheets and rolled sheets is required.

When placing a sheet on the XY table and attaching a pen or paper to the XY plotter to plot or cut a pattern, the feeding of the sheet must be done manually, whether it is a cut sheet or a rolled sheet. It is possible.

However, in automatic drawing machines that draw or cut by moving the pen or cutter in the Unable to draw or cut.

In such a case, the cut sheet is fed in a flat Y direction, so the structure of the feeding device can be realized relatively easily. It has a three-dimensional structure in which the ends are wound around the supply shaft.

(Problems to be Solved by the Invention) In the case of a sheet-like product wound into a roll, the structure is complicated due to the three-dimensional structure as described above. Since the tip must be pulled out, guided along the supply path, and wound around the take-up shaft, there is a problem in that setting is extremely complicated.

Also, when setting a sheet-like object, a certain tension is applied to the sheet-like object, but this tension is not constant due to individual differences in the person setting the sheet-like object, and the sheet-like object expands and contracts.
There was a problem that errors occurred in drawing and cutting.

(Means for Solving the Problems) The sheet-like material feeding device of the present invention has an operating roller and a pressing roller that feed the sheet-like material onto the workbench, which are adjacent to a workbench for drawing or cutting on the sheet-like material. A feed roller mechanism is provided below the work table, and a feed roller mechanism is provided below the work table for supplying a sheet material wound into a roller onto the work table through the feed roller mechanism.
In addition, each roller constituting these roller mechanisms is configured to be able to rotate in forward and reverse directions at a constant rotational speed ratio.

(Operation) A roll-shaped (unprocessed) sheet-like material is placed between a pair of supply rollers constituting a supply roller mechanism with its tip end facing the guide, regardless of the presence or absence of a core material.

If you press the switch in this state, the rollers that make up the supply roller mechanism, feed roller mechanism, and feed roller mechanism will rotate in the feeding direction of the sheet material at a fixed speed ratio, for example, at a constant circumferential speed. The leading end of the sheet material is sent out along a guide having an arcuate cross section. The sheet-like material (
The sheet-like material after processing is sent out from the workbench by a delivery mechanism, and descends while curling in a natural state, and is guided to a take-up roller mechanism. When the sheet-like material of an appropriate length is led out from the feeding mechanism, the supply of the sheet-like material is temporarily stopped. At this time, the user wraps the tip of the processed sheet material around the core material or lightly rolls it up and places it between a pair of take-up rollers forming a take-up roller mechanism. During this time,
Both edges in the width direction of the sheet material before and after processing are regulated and accurately guided by several guide roller mechanisms disposed in the middle of the supply path.

In this way, after the setting of the sheet-like material is completed, computer control is started, and each roller constituting the supply roller mechanism, feed roller mechanism, feed roller mechanism, and take-up roller mechanism repeats forward and reverse rotation. The sheet-like object is moved in the Y direction, and the pen or cutter is moved in the X direction, and drawing or cutting is performed by the cooperation of the two.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

1 to 5 show an embodiment of a sheet feeding device according to the present invention, and are illustrated in a state where the device is applied to a device that can perform both drawing and cutting.

Note that FIG. 6 shows another embodiment of the present invention.

The sheet feeding device is controlled by a computer (not shown), and as shown in FIG. 2, is surrounded on the outside by a casing 1 that is open on the front side.

Approximately at the center of the upper part of the casing 1, there is a workbench 2 formed into a cylindrical shape using a soft and hard rubber material or a synthetic resin material.
is rotatably supported in a horizontal position. The workbench 2 is not limited to a cylindrical shape, but may be a flat plate and may be fixed.

Adjacent to this workbench 2, there is a feed roller mechanism 101 consisting of an actuating roller 3 and a pressing roller 5 that feeds a sheet-like material 43a before processing onto the workbench 2, and a feed roller mechanism 101 for drawing or cutting on the workbench 2. processed) sheet-like material 4
A feed-out roller mechanism 102 consisting of an adjustment roller 13 and a pressure roller 15 for feeding out the roller 3b is provided.

A feed roller mechanism 101 is provided on the upstream side of the workbench 2 in the direction in which the sheet-like material is fed.

As shown in FIGS. 2 and 3, a plurality of actuating rollers 3 constituting one side of the feed roller mechanism 101 are fixed at predetermined intervals in the longitudinal direction of a rotating shaft 4, and the rotating shaft 4 is not shown. Rotated in both forward and backward directions by non-morphs.

A pressing roller 5, which constitutes the other part of the feed roller mechanism 101, is arranged on the operating roller 3 so that it can be pressed from above in a freely rotatable state (see FIGS. 1 and 3). The pressing roller 5 is rotatably supported via a shaft 7 at the tip of an arm 6 that is suspended horizontally. The middle part of @6 is rotatably supported on a shaft 9 horizontally and parallel to the rotary shaft 4 through a bracket 8, and is supported by a spring (not shown) in a manner shown in FIG. It is given a clockwise rotational habit.

A cam 10 is in contact with the upper side of the rear end of the arm 6.

The cam 10 has a rotation shaft 11 that is rotatably supported horizontally between the left and right side walls of the casing 1 and parallel to the shaft 9.
The casing 1 is fixed to one end of the rotating shaft 11.
A knob 12 that can be operated from the outside is fixed.

The arm 6 and the pressing roller 5 are connected to the rotating shaft 4 together with the cam 10.
A plurality of sets are provided at predetermined intervals along the longitudinal direction.

On the other hand, a feed-out roller mechanism 102 is provided on the downstream side of the workbench 2 in the sheet-like object feeding direction. The adjustment roller 13 that constitutes one side of the feed roller mechanism 102 also
As shown in FIGS. 2 and 3, a plurality of rotary shafts 14 are fixed at predetermined intervals along the longitudinal direction of the rotary shafts 14, which are rotatably suspended horizontally between the left and right side walls of the casing l, and the rotary shafts 14 are operated. It is rotated in synchronization with the roller 3.

The adjusting roller 13 works in cooperation with the operating roller 3 to hold the sheet-like object horizontally with respect to the workbench 2 while maintaining a constant tension. The adjustment roller 13 is also arranged so that a pressure roller 15 forming the other side of the feed roller mechanism 102 can press the adjustment roller 13 in a rotatable state. Both ends of the pressing roller 15 are rotatably supported on the tip of an arm 16, and the rear end of the arm 16 is rotatably supported on the side wall of the casing 1 via a shaft 17, and is further pressed by a spring means (not shown). A rotational behavior is provided so that the roller 15 is pressed against the adjustment roller 13.

A shaft 18 is horizontally suspended above the workbench 2 in parallel with the workbench 2, and a head 19 is slidably fitted onto the shaft 18. A cutter 20 is attached to the head 19 so as to be movable up and down and rotatable in a state perpendicular to the workbench 2. The cutter 20 is raised, lowered, or rotated under the control of a computer (not shown), but can be replaced with a pen when drawing.

The head 20 is attached and fixed in the middle of an endless belt 21, and reciprocates left and right along the workbench 2.

The supply of power and signal current to the head 20 is carried out by the shaft 1.
It is supplied via a flexible cable 23 mounted and guided on a horizontal platform 22 provided along the line 8. The power supply device and the control device are housed in a control box 24 provided on the back side of the casing 1.

Further, below the workbench 2, a supply roller mechanism 103 is provided that supplies a sheet-like material wound into a roller onto the workbench 2 via the feed roller mechanism 101.

The supply roller mechanism 103 includes supply rollers 25a, 25b, .
・It is composed of. These supply rollers 25a, 25
b... are fixed apart from each other by a predetermined distance along the longitudinal direction of the shafts 27a and 27b, respectively.

Further, a take-up roller mechanism 104 for winding up the processed sheet material 43b is adjacent to this supply roller mechanism 103. The winding roller mechanism 104 includes winding rollers 26a arranged in parallel on two sides (pair) at an interval suitable for winding up the sheet material 43b after drawing or cutting.
, 26b... These winding rollers 2
6a..., 26b... are the shafts 27a, respectively.
Shafts 28a and 28 arranged one step lower than 27b
b are fixed at predetermined intervals along the longitudinal direction.

Each shaft 27a, 27b, 28a, 28b is rotated in synchronization with the workbench 2. Power is transmitted from a motor (not shown) via a belt, chain, or gear. These power transmission means are housed in a side box 29 provided outside one side wall of the casing 1.

By the way, between the shafts 27a, 27b and 28a, 28b,
Further, guide rollers 30a and 30b are vertically disposed near one side wall of the casing 1 and are rotatably arranged, respectively.

Also, facing these guide rollers 30a and 30b,
Guide rollers 31a and 31b are rotatably arranged near the other side wall of the casing 1. A mechanism that regulates the width direction of a sheet-like object constituted by these guide rollers 30a, 30b, 31a, and 31b is collectively referred to as a guide roller mechanism (no reference numeral). Guide rollers 30a, 31a located between shafts 27a, 27b are connected to shafts 28a, 2
One set of guide rollers 31a is located one step higher than the guide rollers 30b and 31b located between 8b.
, 31b are rotatably supported on the support frame 32.

Also, a guide roller 31 located between the shafts 27a and 27b
a is rotatably supported on a block 33 fixed to one end side of the support frame 32, and a shaft 34 provided parallel to the shaft 27a is slidably fitted into this block 33. Therefore,
The support frame 32 can be moved left and right via the block 33, and the guide rollers 30a, 30b, 31a, 31
The interval between b can be adjusted to match the width of the sheet-like object. The block 33 is fixed by tightening the screw 35.

By the way, a guide 36 having an arc-shaped cross section is arranged from the supply roller mechanism 103 to the feed roller mechanism 101, and a guide 37 having a slightly smaller arc-shaped cross section than this guide 36 is provided above the guide 36. They are arranged opposite to each other, and play a role of guiding the unprocessed sheet material 43a between the actuating roller 3 and the pressing roller 5 that constitute the roller mechanism 101.

Guide rollers 38 and 39 are arranged inside this guide 36 and below near the feed roller mechanism 102.

These guide rollers 38 and 39 have the same shape and are formed with a large diameter. These guide rollers 38.39
The reason why it was made to have a large diameter was because it was shaped like a sheet and could guide objects along a gentle curve.

A large diameter flange 40 is fixed to one end of each guide roller 38, 39, and a flange 40 of the same diameter is fixed to the other end.
1 is movably attached and can be adjusted to match the width of the sheet-like object. The flange 41 is fixed using screws 42. In this way, the guide rollers 38 and 39 having a mechanism for regulating the width direction of the sheet-like object are also collectively referred to as a guide roller mechanism (no reference numeral).

An operation panel 44 is provided at the upper end of the side box 29, and various switches necessary for drawing and cutting operations, including a power switch, are provided.

Next, the operation of this embodiment configured as above will be explained.

First, the unprocessed sheet material 43a wound into a roll is transferred to the supply rollers 25a of the supply roller mechanism 103.
, 25b... is placed between these rollers with their axial directions parallel to each other. At this time, the intervals between the guide rollers 30a and 31a and between the guide rollers 30b and 31b that constitute the guide roller mechanism are adjusted to be the same as the width of the sheet-like object, and the guide rollers 38.3 that also constitute the guide roller mechanism are adjusted to be the same as the width of the sheet-like object.
The spacing between flanges 40 and 41 of No. 9 is also adjusted in the same manner.

In addition, the sheet-like materials 4 and 32 before being processed are wound into rolls.
are placed on the supply rollers 25a . . . , 25b .

In this state, operate the operation buttons on the operation panel 44 to move the supply rollers 25a..., 25b... to the sheet material 43.
Rotate a in the direction of supply. Along with this rotation, the sheet-like material 43a is unwound, and as shown by the dashed line in FIG. 37, and the feed roller 101 is brought close to between the actuating roller 3 and the pressing roller 5. At this moment, turn the knob 12 to turn the cam IO, and turn the arm 6.
is rotated counterclockwise around the shaft 9, the press roller 5 is raised, and the tip of the sheet-like material 43a is guided between the actuating roller 3 and the press roller 5. When the tip passes, the cam 10 is rotated. Return to the original state and move the pressure roller 5 to the operating roller 3.
lower it to the top. Then, the tip of the sheet-like material 43a is pulled by the rotation of the operating roller 3, passes over the workbench 2, and is sent out from between the adjustment roller 13 and the pressing roller 15 that constitute the delivery roller mechanism 102.

During this time, the tip of the sheet-like material 43a, which was slack at first, is attracted and comes into contact with the guide roller 38, as shown by the solid line in FIG. 43b is guided between the flanges 40° and 41 of the guide roller 39. Then, the leading end of the sheet-like material 43b is sent out a predetermined distance, and the leading end is rolled up several times to form the winding roller 2 that forms the winding roller mechanism 104.
6a..., 26b... or the initial feeding of the sheet-like material 43b is carried out so that the tip of the sheet-like material 43b can be wound around a core material (not shown). The setting of the sheet-like object is completed.

After that, the control is switched to the computer, and the rollers 3, 13, 25a, 25b, and so on rotate forward and backward in synchronization.
, 26a . . . , 26b . I do.

Drawing can also be done by using a pen instead of the cutter 20.

In addition, in the above-mentioned embodiment, roller 3.13.25
a..., 25b..., 26a..., 26b...
Although the rotational speeds of the two rotational speeds have been described as being the same circumferential speed, they may be set to a constant ratio depending on the purpose.

Further, the processed sheet-like material 43b may be wound around a core or wound without using a core.

Further, although the workbench 2 is cylindrical and rotatable, a fixed flat plate may also be used. In addition, the 6th
As shown in the figure, the take-up roller mechanism is omitted and the supply roller mechanism 1 is
Supply rollers 25a..., 25b... constituting 03
The role played by the winding roller is realized by sandwiching the tip of the fed sheet-like material 43b after processing between the sheet-like material 43a wound into a roller shape before processing (the sheet-like material of the present invention Other embodiments of the feeding device) are also possible.

(Effects of the Invention) As explained above, according to the sheet-like material feeding device of the present invention, there is provided a feed roller mechanism adjacent to the workbench for feeding the sheet-like material to the workbench, and a feeding roller mechanism for drawing or cutting on the workbench. A feed-out roller mechanism that feeds out the sheet-like material that has been subjected to the above-mentioned feeding, and a supply roller mechanism that feeds the sheet-like material wound into a roll onto the workbench via the feed-roll mechanism, and each roller constituting these roller mechanisms is provided. Because it is configured so that it can rotate forward and reverse at a constant rotation speed ratio,
If the sheet-like material is rolled into a roll and placed between the supply rollers forming the supply roller mechanism, it can be automatically supplied with a constant tension simply by rotating the supply rollers.

Further, the tip of the processed sheet material can be rolled up or rewound automatically by simply rolling it up or winding it around a core material and placing it between the take-up rollers forming the take-up roller mechanism.

Several sets of guide roller mechanisms are arranged in the middle of the sheet-like material supply path, which can regulate the sheet-like material in the width direction, and prevent the sheet-like material from meandering when it is fed. (Can be supplied accurately.

Since the feed roller mechanism and the feed roller mechanism are provided to sandwich the workbench, appropriate tension is applied to the sheet-like material, and the sheet-like material can be brought into close contact with the workbench and accurately fed.

[Brief explanation of the drawing]

The drawings show an embodiment of the sheet-like material feeding device according to the present invention, in which Fig. 1 is a vertical side view, Fig. 2 is an overall perspective view, Fig. 3 is a perspective view of main parts, and Fig. 4 5 is a perspective view of a supply roller mechanism and a take-up roller mechanism, FIG. 5 is a perspective view of a guide, and FIG. 6 is a longitudinal side view showing another embodiment. 1... Casing Fig. 7 2... Workbench 101... Feeding roller mechanism 3... Working roller 5... Pressing roller 102... Feeding roller mechanism 13... One round alignment roller 15... . . Press roller 19 . - Guide 43a... Sheet-like material before processing 43b... Sheet-like material after processing

Claims (1)

[Claims] 1) A feed roller mechanism consisting of an actuating roller and a pressure roller that feeds the sheet onto the workbench is provided adjacent to a workbench for drawing or cutting on the sheet, and A supply roller mechanism is provided below the workbench for supplying the rolled sheet onto the workbench via the feed roller mechanism, and each roller constituting these roller mechanisms is rotated at a constant rotational speed ratio. A feeding device for sheet-like materials, characterized in that it is configured to be able to rotate in forward and reverse directions. 2) A sheet feeding device according to claim 1, wherein a guide having an arcuate cross section for guiding the sheet is disposed between the supply roller mechanism and the feed roller mechanism. 3) A sheet-shaped sheet according to claims 1 and 2, further comprising a supply roller mechanism and a guide roller mechanism for regulating the width direction of the sheet-shaped article between the supply roller mechanism and the feed roller mechanism. A device for sending things.