JPH037588B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] A tape coated or impregnated with epoxy resin on one side is wound spirally around a mandrel to form a tube, which is then heat-treated and removed from the mandrel to be used as a rotating body or pipe. , joints, pressure vessels, and other axially symmetrical parts. Release paper is layered on the surface of the tape coated or impregnated with epoxy resin, and the tape is transported and stored while being wound around a reel together with the release paper.

The present invention relates to a tape winding device for winding a tape around a mandrel in order to manufacture an axially symmetrical part using such a tape.

[Prior Art] Conventionally, there has been no tape winding device with high performance functions for winding tape around a mandrel, and a tape winding device that is equipped with a rotating mandrel and a device that supplies tape from an oblique direction to the mandrel has not been available. I was using something.

[Problems to be Solved by the Invention] Conventional tape winding devices have the following drawbacks.

(i) If the winding angle was changed significantly while winding the tape around the mandrel, the tape would slip against the mandrel, making it impossible to wind the tape at an accurate angle.

(ii) It was not possible to cut the tape while it was being wrapped around the mandrel or to fix the tape on the mandrel.

(iii) It was not possible to set and wind the tape in any direction within ±180° horizontally to the mandrel axis.

(iv) It was not possible to arbitrarily change the size of the tape tension during winding.

The present invention aims to provide a high-performance tape winding device that can perform such functions.

[Means for Solving the Problems] The present invention includes a mandrel that rotates around a horizontal axis, a column that is movable parallel to the axis,
a base provided on the column; a cylindrical body attached to the base and rotating horizontally about a vertical rotation center axis perpendicular to the axis; and a tape supply reel supported by the cylindrical body. a tape pressing roller supported by the cylinder and pressing the tape supplied from the tape supply reel against the surface of the mandrel when raised and lowered along the rotation center axis; and a tape presser supported by the cylinder and pressing the tape supplied from the tape supply reel onto the surface of the mandrel. a tape gripper that grips the tape near a roller;
The tape winding device includes tape cutting scissors supported by the cylindrical body and cutting the tape between the tape pressing roller and the tape gripping tool.

[Function] The tape gripper grips the end of the tape, the tape press roller presses the tape against the mandrel and sticks the tape end to the mandrel, and the tape cutter cuts the tape press roller and the tape gripper after wrapping is completed. The tape will be cut between.
Furthermore, since the tape supply reel, tape pressing roller, tape gripping tool, and tape cutting scissors are supported by bearings and rotate horizontally, the tape winding angle around the mandrel can be arbitrarily set.

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

In FIG. 4, reference numeral 1 denotes a mandrel, which is supported by a tailstock 2 and rotates at a fixed position about a horizontal axis.

3 is a column, which is provided on the other side of the mandrel 1 in FIG.
It is designed to be able to move in the left and right X directions parallel to the axis of the machine. A base 4 is provided on the column 3,
The base 4 protrudes above the mandrel 1 from the front surface of the column 3, and extends up and down Z along the front surface of the column 3.
It is now possible to move in any direction.

In Fig. 4, 5 is an operation panel, 6 is a numerical control panel,
7 is a strong electric control panel.

As shown in FIG. 2, a rotating cylinder 8' is rotatably provided on the base 4 via a mandrel 8.
The rotation center axis 9 of this cylinder 8' is vertical and perpendicular to the axis 10 of the mandrel 1. Cylindrical body 8
A pulley 11 is fixed to the base 4, and a servo motor 12 and a speed reducer 1 are mounted inside the base 4.
3. Via the pulley 14, timing belt 15, and pulley 11, centering around the rotation center axis 9,
It is designed to rotate within a range of 180 degrees clockwise and counterclockwise with respect to the axis 10 of the mandrel 1, and to be accurately positioned.

On the upper surface of the pulley 11 and the lower surface of the cylinder 8',
An upper plate 16 and a lower plate 17 are fixed to each other, and the upper plate 16 includes a tape supply reel 18, a release paper take-up reel 19, a brake wheel 20 for tape tension, a tape tension detector 21, and an idler. A wheel 22 is supported, and another idler wheel 23 is supported on the lower plate 17.

Tape 2 wound on tape supply reel 18
Reference numeral 4 has one surface coated or impregnated with epoxy resin, and a release paper 25 is overlaid on that surface. The tape supply reel 18 is rotated counterclockwise and the release paper take-up reel 19 is rotated clockwise by the torque motors 26 and 27 with a constant torque.
prevents the tape from loosening during tape winding, and the release paper take-up reel 19 can wind up the release paper. The tape 24 separated from the release paper 25 is connected to a tape tension brake wheel 20, a tape tension detector 21, and idler wheels 22, 23.
It is then supplied to the surface of the mandrel 1.

As shown in FIG. 2 and FIG.
7 and is supported by a cylinder 28 for vertical movement.
A vertically extending vertical slide plate 30 is fixed to the lower end of the piston rod 29 that protrudes downward from the piston rod 29, and a tape pressing roller 31 having a horizontal axis is rotatably attached to the lower end of the vertically sliding plate 30. is supported by Vertical cylinder 2
8, the piston rod 29, the vertical slide plate 30, and the tape press roller 31 move up and down along the rotation center axis 9, and when they descend, the tape press roller 31 moves as shown in FIGS. 1 to 3. , the tape 24 is pressed against the surface of the mandrel 1, and the surface of the tape 24 coated or impregnated with epoxy resin is attached to the surface of the mandrel 1.

As shown in FIG. 3, the vertical slide plate 30 supports a left and right slide plate 32, which can be moved in the left and right X' directions with respect to the vertical slide plate 30 by the operation of a tape cut scissor horizontal movement cylinder 33. It's summery. Tape cutting scissors 34 are attached to the left and right slide plates 32, and when the vertical movement cylinder 28 is actuated to move the vertical slide plate 30 up and down as described above, the tape cutting scissors 34 move up and down together with the tape presser roller 31. By operating the tape cutting scissors lateral movement cylinder 33, only the tape cutting scissors 34 can be moved in the left and right X' directions. And tape cut scissors 34
is closed and opened by the actuating ring 35,
The tape 24 can be cut.

The lower plate 17 further supports a vertical guide plate 48 shown in FIG. , a vertically extending vertical slide plate 38 is fixed, and a horizontal guide plate 39 that is long in the front-rear Y direction is fixed to the lower end of the vertical slide plate 38. The horizontal guide plate 39 has a cylinder 4 for moving the tape gripping tool back and forth.
0 is fixed, and by operating the cylinder 40 for moving the tape gripper back and forth, the front and back slide plate 41 supported under the horizontal guide plate 39 is moved.
can be moved forward and backward in the Y direction along the horizontal guide plate 39. A vertical fixing plate 42 is fixed to the lower surface of the front-rear slide plate 41, and a cylinder 43 for horizontal movement of the tape gripper is attached to this vertical fixing plate 42. By operating the cylinder 43 for horizontal movement of the tape gripping tool, the tape gripping tool support block 44 supported below the front and back slide plate 41 is moved in the left and right X' directions with respect to the front and rear slide plate 41. It's summery. Reference numeral 45 denotes a slide bar that guides the tape gripper support block 44 in the left and right X' directions. The tape gripping tool support block 44 has vertically opposed tape gripping tools 46 attached thereto, and can be closed and opened in the vertical direction by means of an operating coil 47. In this way, the tape gripper 46 is moved up and down by the cylinder 36 for vertical movement of the tape gripper, moved in the front and back Y direction by the cylinder 40 for forward and backward movement of the tape gripper, and moved by the cylinder 43 for horizontal movement of the tape gripper. Therefore, it can be moved in the left and right X' directions, and opened and closed in the vertical direction by the actuation coil 47.

The operation of winding the tape 24 around the mandrel 1 using the above-described device will now be described.

When the cylinder 8' is rotated by the servo motor 12 shown in FIG. 2, the tape supply reel 18 and release paper winding reel 1 supported by the cylinder 8' are
9, Brake wheel 20 for tape tension,
Tape tension detector 21, idler wheel 2
2, 23, tape pressing roller 31 and FIG.
The tape cutting scissors 34 and the tape gripping tool 46 shown in FIG. 3 both rotate about the rotation center axis 9 together with the cylinder 8'. By appropriately selecting the rotation angle of the cylinder 8', the winding angle of the tape 24 around the mandrel 1 can be determined.

Next, the tape cutting scissors 34 is moved to the right in the left and right X' direction by the tape cutting scissors lateral movement cylinder 33 shown in FIG.
to open the tape cutting scissors 34, and use the vertical movement cylinder 28 to open the tape pressing roller 31,
Keep the tape cutting scissors 34 raised. Further, the tape gripping tool 46 is raised by the cylinder 36 for vertical movement of the tape gripping tool, moved to the left in the left/right X' direction by the cylinder 43 for horizontal movement of the tape gripping tool, and the tape gripping tool 46 is moved to the left in the left/right X' direction by the cylinder 43 for moving the tape gripping tool back and forth. The gripping tool 46 is moved forward in the front-rear Y direction, advanced to the front side of the tape cutting scissors 34, and the tape gripping tool 46 is opened by the operating coil 47.

In this state, as shown in FIG. 1 and FIG.
When the tape 24 is pulled out through the tape tension brake wheel 20, the tape tension detector 21, and the idler wheels 22, 23, the tape 24 is aligned with the rotation center axis 9 with an appropriate tension applied. It reaches the surface of the mandrel 1 at the crossing position.

Here, when the tape press roller 31 is lowered by the vertical movement cylinder 28, the tape press roller 31 is lowered.
1 is tape 2 reaching the surface of mandrel 1
The end of 4 is pressed against the surface of mandrel 1 to attach it to mandrel 1. Note that when the tape pressing roller 31 is lowered, the tape cutting scissors 34 are also lowered, but since the tape cutting scissors 34 are moved to the right in the left-right X' direction by the tape cutting scissors left-right movement cylinder 33, Tape cut scissors 34 is tape 2
No contact with 4.

After pasting the end of the tape 24 on the mandrel 1, the mandrel 1 is attached using the operation panel 5 shown in FIG.
When the column 3 is rotated about the axis 10 (see FIG. 3) and moved in the left and right X directions, the tape 24 is wound around the mandrel 1 in a spiral shape. At the point when the tape 24 begins to be wound around the mandrel 1, the tape pressing roller 31
It is raised by the vertical movement cylinder 28. The rotational speed of mandrel 1 and the moving speed of column 3 are:
This is automatically set on the numerical control panel 6 based on the width of the tape 24, the diameter of the mandrel 1, and the inclination angle of the tape with respect to the axis 10 of the mandrel 1. When the cylindrical body 8' is rotated in order to change the winding angle (change the inclination angle of the tape with respect to the axis of the mandrel) while the tape 24 is being wound around the mandrel 1, the tape 24 is rotated around the center of rotation. Since the tape 24 rotates horizontally about the axis 9, no slack or tension occurs in the tape 24 itself.

When the winding of the tape 24 over a predetermined length of the surface of the mandrel 1 is completed, the following sequence of operations is automatically performed.

(i) The rotation of the mandrel 1, the movement of the column 3 (see Fig. 4) in the left and right X directions, the tape supply reel 18 and the release paper winding reel 19 (see Figs.
(see figure) is prevented from rotating.

(ii) The tape press roller 31 and the tape cutting scissors 34 are lowered by the vertical movement cylinder 28 shown in FIG.
to press against.

(iii) The tape gripper 46 is lowered by the cylinder 36 for vertically moving the tape gripper.

(iv) The tape gripping tool 46 is moved to the right in the left-right X' direction by the tape gripping tool left-right movement cylinder 43.

(v) The tape gripper 46 is closed by the operating coil 47, and the tape gripper 46 grips the tape 24 on the front side of the mandrel 1.

(vi) Tape cutting scissors The tape cutting scissors 34 is moved to the left in the left-right X' direction by the horizontal movement cylinder 33 and enters between the tape pressing roller 31 and the tape gripping tool 46.

(vii) Tape cut scissors 3 by operating coil 35
4 is closed, and the tape cutting scissors 34 cut the tape 24 between the tape pressing roller 31 and the tape gripper 46.

One side of the cut tape 24 is pressed against the mandrel 1 by a tape pressing roller 31, and the other side of the cut tape 24 is held by a tape gripper 46.

(viii) Tape cut scissors 3 by operating coil 35
4 opens.

(ix) Tape cutting scissors The tape cutting scissors 34 is moved to the right in the left-right X' direction by the horizontal movement cylinder 33.

(x) The tape pressing roller 31 and tape cutting scissors 34 are raised by the vertical movement cylinder 28.

Here, the mandrel 1 is indexed by a predetermined angle in preparation for the next taping. The column 3 shown in FIG. 1 is moved to the left in the left-right X direction, and the following sequence of operations is automatically performed.

(i) The tape gripping tool 46 is moved back to the other side of the mandrel 1 in the forward and backward Y direction while gripping the tape 24 by the cylinder 40 for moving the tape gripping tool back and forth.

(ii) The tape presser roller 31 and the tape cutting scissors 34 are lowered by the vertical movement cylinder 28, and the tape presser roller 31 is lowered by the tape gripper 4.
The front side portion of the tape 24 held by the tape 6 is pressed against the mandrel 1 and pasted.

(iii) The tape gripper 46 is opened by the actuating coil 47, and the grip on the tape 24 is released.

(iv) The tape gripper 46 is raised by the cylinder 36 for vertical movement of the tape gripper.

(v) The tape gripper 46 is moved to the left in the left-right X' direction by the tape gripper left-right movement cylinder 43.

(vi) The tape gripper 46 is moved forward in the front-rear Y direction by the cylinder 40 for moving the tape gripper back and forth, and advanced to the front side of the tape cutting scissors 34.

(vii) As the mandrel 1 rotates, the column 3 moves to the right in the left-right X direction in FIG.

In this way, winding of the tape 24 around the mandrel 1 is started again. This operation is repeated until the mandrel surface is completely covered with tape. Note that while the tape 24 is being wound around the mandrel 1, the tape 24 can be cut once by performing the same operation as when the winding is completed, and the winding can be restarted by changing the winding conditions such as the angle.

[Effects of the invention] The winding angle of the tape around the mandrel can be changed arbitrarily, and the tape can be cut at any position, not just at the end of the mandrel.
This has the advantage that the winding work can be easily automated.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the tape path in the apparatus of the present invention, FIG. 2 is a longitudinal cross-sectional side view of the main part of an embodiment of the invention, FIG. 3 is a perspective view of the main part, and FIG. FIG. 1 is a perspective view showing the entirety of an embodiment of the invention. In the figure, 1 is a mandrel, 3 is a column, 4 is a base, 8' is a cylinder, 9 is a rotation center axis, 10 is an axis,
18 is a tape supply reel, 24 is a tape, 31 is a tape pressing roller, 34 is a tape cutting scissor,
46 indicates a tape gripper.

Claims (1)

[Claims] 1. A mandrel that rotates around a horizontal axis,
a column movable parallel to the axis; a base provided on the column; and a cylindrical body attached to the base and horizontally rotating about a vertical rotation center axis perpendicular to the axis; a tape supply reel supported by the cylindrical body; and a tape pressing roller that is supported by the cylindrical body and presses the tape supplied from the tape supply reel against the surface of the mandrel when moved up and down along the rotation center line. a tape gripping tool supported by the cylindrical body and gripping the tape near the tape pressing roller; and tape cutting scissors supported by the cylindrical body and cutting the tape between the tape pressing roller and the tape gripping tool. A tape winding device comprising: