JP2014121807A - Tape sticking device and method for producing workpiece with tape stuck thereto - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tape sticking device with which a tape member can be stuck to a workpiece without being inclined toward a plane vertical to a central axis of the workpiece, and to provide a method for producing a workpiece with a tape stuck thereto.SOLUTION: In a tape sticking device 1 to stick a tape member T to a taper face Wc of a workpiece W, the tape sticking device 1 includes: a press roller 33 to press a section of the elastically deformable rectangular tape member T closer to the large diameter section Wa side of the taper face Wc than to the center of the width direction; a reference surface 31a for sticking and a protrusion 32 to control the edge position of the tape member T on the small diameter section Wb side of the taper face Wc, and to control distance between the edge of the tape member T on the small diameter section Wb side and the taper face Wc; and a workpiece rotating section to relatively move the press roller 33 in the sticking direction of the tape member T with respect to the workpiece W, controls such that the edge of the tape member T on the small diameter section Wb side is horizontal to the axial direction, and sticks the tape member T to the taper face Wc by relatively moving the press roller 33 in a state of pressing the large diameter section Wa side of the tape member T.

Description

  The present invention relates to a tape applying device for attaching a tape member to a work and a method for manufacturing a work with a tape to which a tape member is attached.

  Conventionally, as a tape applicator for attaching a rectangular tape member to the outer peripheral surface of a cylindrical workpiece, after positioning the tape member on the outer peripheral surface of the workpiece, the tape member is applied along the outer peripheral surface of the workpiece while pressing the tape member. A tape attaching device to be attached is known (see Patent Document 1).

  However, for example, in the case of a molded part in which a cylindrical workpiece is formed of a die, the outer peripheral surface of the workpiece is not a cylindrical shape but a conical shape (tapered shape) due to the draft angle of the die or the processing accuracy of the die. It may become. In this case, since the tape member is attached following the conical outer peripheral surface, the tape member cannot be attached to the outer peripheral surface of the work so as to be parallel to the plane perpendicular to the central axis of the work without inclination. . Further, when the inclination angle of the taper surface with respect to the center axis of the workpiece is increased, the tape member can be attached only to the large diameter portion side of the workpiece, and it is difficult to fix the tape member to the workpiece. It was.

  In response to this, a tape sticking device has been proposed in which a tape member is formed in a sector shape matching the slope angle of the taper surface of the workpiece and is attached to the taper surface (see Patent Document 2).

JP 2001-260225 A JP 2001-10615 A

  However, the tape sticking device described in Patent Document 2 has a problem that it cannot be used when the slope angle of the workpiece changes because a tape member dedicated to the workpiece is formed and stuck to the workpiece. In addition, for example, even when a variation occurs on the outer peripheral surface of the workpiece due to a molding error or the like, the tape member is attached along the outer peripheral surface, so that it is parallel to the plane perpendicular to the central axis of the workpiece without being inclined. , It cannot be attached to the outer peripheral surface of the workpiece.

  Accordingly, the present invention provides a highly versatile tape applicator and a method for manufacturing a work with a tape capable of adhering a tape member to a taper surface of a work without inclining with respect to a plane perpendicular to the center axis of the work. The purpose is to do.

  The present invention provides a tape in which a tape member is attached to the taper surface of a workpiece having a continuous taper surface from a large diameter portion toward a small diameter portion with respect to the axial direction of the central axis in a direction perpendicular to the axial direction of the workpiece. In the sticking device, a pressing roller that presses the large diameter portion side of the tapered surface against the tapered surface from the center in the width direction orthogonal to the sticking direction of the elastically deformable rectangular tape member, and the width of the tape member The position of the end of the tape member on the small diameter portion side of the tape member is regulated on the small diameter portion side of the taper surface from the center of the direction, and the distance between the end of the tape member on the small diameter portion side and the taper surface is set. A regulating means for regulating, and a relative moving means for moving the pressing roller relative to the workpiece in the affixing direction of the tape member, the end of the tape member on the small diameter side in the axial direction Against water The large-diameter portion of the tape member is moved relative to the large-diameter portion of the tape member while relatively pressing the large-diameter portion of the tape member with a pressing force capable of elastic deformation. Attaching to the taper surface while extending the side in the attaching direction.

  ADVANTAGE OF THE INVENTION According to this invention, a tape applicator with high versatility can be applied to a taper surface of a work without being inclined with respect to a plane perpendicular to the center axis of the work by attaching the tape member while elastically deforming the tape member. And the manufacturing method of the workpiece | work with a tape can be provided.

It is a top view which shows typically the tape sticking apparatus which concerns on embodiment of this invention. It is a side view which shows typically the workpiece fixing part which concerns on this embodiment. It is a side view which shows typically the tape conveyance part which concerns on this embodiment. It is a figure which shows typically the tape sticking part which concerns on this embodiment. It is a side view which shows typically the tape re-pressing part which concerns on this embodiment. It is a top view which shows the sticking operation | movement of the tape member by the tape sticking apparatus which concerns on this embodiment. It is a top view which shows the sticking operation | movement of the tape member by the tape sticking apparatus which concerns on this embodiment. It is a figure which shows the workpiece | work with which the tape member was affixed.

  Hereinafter, a tape applicator 1 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 8. First, the structure of the tape sticking apparatus 1 which concerns on embodiment of this invention is demonstrated, referring FIGS. 1-5.

  FIG. 1 is a plan view schematically showing a tape applicator 1 according to an embodiment of the present invention. FIG. 2 is a side view schematically showing the workpiece fixing unit 10 according to the present embodiment. FIG. 3 is a side view schematically showing the tape transport unit 20 according to the present embodiment. FIG. 4 is a diagram schematically illustrating the tape applying unit 30 according to the present embodiment. FIG. 5 is a side view schematically showing the tape re-pressing unit 40 according to the present embodiment.

  As shown in FIG. 1, the tape applicator 1 includes a workpiece fixing unit 10 that fixes a workpiece W, a tape conveyance unit 20 that conveys an elastically deformable rectangular tape member T, and the tape member T as a workpiece W. And a tape applying portion 30 to be attached. The tape applicator 1 includes a tape re-pressing unit 40 that re-presses the tape member T attached to the workpiece W.

In this embodiment, a flexible printed circuit board (length 70 mm × width 11 mm × thickness 0.05 mm) is used as the tape member T, and the flexible printed circuit board has a back surface for bonding to the work W. Double-sided tape is affixed. Further, as the work W, the center axis W deposition member that is molded in the axial direction from the large-diameter portion Wa having a continuous tapered surface Wc toward the small diameter portion Wb of ₀ (diameter 65mm tapered surface Wc, slope 0. 3 °) (see FIG. 2). In other words, as the workpiece W, an adherent member formed in a truncated cone shape having a tapered surface Wc is used.

As shown in FIG. 2, the workpiece fixing unit 10 includes a fixing jig 11 that fixes the workpiece W, a workpiece rotating unit 12 as a relative movement unit that rotates the fixing jig 11 around the central axis W ₀ of the workpiece W, A workpiece moving unit 13 that can move the workpiece rotating unit 12 in the horizontal direction. The fixing jig 11 positions a phase of the workpiece W and a clamp (not shown) that fixes the workpiece W supplied from the outside (for example, supplied by a robot arm) so as not to float or tilt on the fixing jig 11. And a phase reference pin (not shown) that is used in the process. The work rotation unit 12 includes a drive motor 12a that rotates the fixing jig 11, and a support unit 12b that supports the drive motor 12a. The workpiece rotating unit 12 rotates the workpiece W to move the pressing roller 33 described later relative to the workpiece W. The workpiece moving unit 13 includes an actuator 13a that moves the support unit 12b in the horizontal direction and a support unit 13b that supports the actuator 13a. The workpiece moving unit 13 moves the workpiece W fixed to the fixing jig 11 to a predetermined pasting position.

  As shown in FIG. 3, the tape transport unit 20 includes a suction block 21 that sucks and holds the tape member T, a tape lifting unit 22 that moves the suction block 21 in the vertical direction, and a tape that moves the suction block 21 in the horizontal direction. And a moving unit 23. The adsorption block 21 is formed of urethane rubber (Shore A hardness 70). The suction block 21 has a large number of holes of about 2 mm on the suction surface, and the suction surface holds the entire surface of the tape member T by a vacuum generator (not shown) as a suction source. Thereby, the adsorption block 21 has the effect of preventing the deformation of the tape member T by securing the adsorption force and the wall between the holes. In the stage where the suction block is attracted, the position of the tape member T relative to the suction block 21 is sucked and held by the suction block 21 with an accuracy of about ± 0.03 mm. The tape raising / lowering part 22 is provided with the actuator 22a which raises / lowers the adsorption | suction block 21, and the support part 22b which supports the actuator 22a. The tape raising / lowering part 22 adjusts the sticking position in the height direction of the tape member T with respect to the workpiece W. The tape moving unit 23 includes an actuator 23a that moves the support 22b in the horizontal direction and a support 23b that supports the actuator 23a. The tape moving part 23 conveys the tape member T adsorbed by the adsorption block 21 toward the workpiece W located at a predetermined sticking position.

As shown in FIG. 4, the tape sticking unit 30 includes a pressing roller 33 that presses the tape member T, a sticking reference member 31 that rotatably supports the pressing roller 33, and a restriction unit that is provided on the sticking reference member 31. And a protruding portion 32 to be configured. Further, the tape applying unit 30 includes a roller moving member 34 as a pressing force adjusting means for moving the attaching reference member 31 in the horizontal direction. The pressing roller 33 is formed in a drum shape with an R shape on the roller surface by urethane rubber (Shore A hardness 90). The pressing roller 33 is supported by the sticking reference member 31 so that the rotation shaft 33 a is parallel to the center axis W ₀ of the workpiece W fixed to the fixing jig 11. The pressing roller 33 includes a roller position adjusting mechanism 33b as roller position adjusting means that can move in the direction of the rotation shaft 33a. The roller position adjusting mechanism 33b is configured to be able to adjust the pressing position of the pressing roller 33 against the tape member T.

  The sticking reference member 31 has a gap (for example, about 0.1 mm) that does not interfere with the tapered surface Wc of the workpiece W when the workpiece W rotates while the pressing roller 33 is in contact with the tapered surface Wc of the workpiece W. ) Is secured. Further, the sticking reference member 31 has the same height as the end position on the small diameter portion side of the work from the center in the width direction of the tape member T at the position where it is attached to the work W, or the end position on the small diameter portion Wb side. And a sticking reference surface 31a that constitutes a restricting means in which a very small gap is formed. The sticking reference surface 31 a is provided at a position facing the pressing roller 33 so as to be substantially parallel to a plane orthogonal to the rotation shaft 33 a of the pressing roller 33. The sticking reference surface 31a restricts the tape member T from being inclined toward the small diameter portion Wb of the workpiece W when the tape member T is pressed by the pressing roller 33. That is, the sticking reference surface 31a regulates the inclination of the tape member T.

In the present embodiment, affixing the reference members 31 from the line connecting the rotational shaft 33a of the center axis W ₀ and the pressing roller 33 of the workpiece W, the rear end Tb side that is not adhered temporary tape member T About 15 mm, it is formed in a shape along the outer peripheral surface of the workpiece W (see FIG. 4B).

The protrusion 32 includes an adjustment mechanism (not shown) as an adjustment unit that can move in the horizontal direction on the reference adhesion surface 31a of the adhesion reference member 31 and adjust the distance from the tapered surface. Adjustment mechanism, a constant distance between the center axis W ₀ and the rotation shaft 33a and the tapered surface Wc and the tape member T of the work W on the line segment (the axial direction in the corresponding position) connecting the pressure rollers 33 of the workpiece W It is for keeping. The protrusion 32 suitably regulates the separation of the tape member T from the tapered surface Wc of the workpiece W by adjusting the distance from the tapered surface Wc according to the tape member T used by the adjustment mechanism.

Roller transporting member 34, by moving the central axis W ₀ and in which, sticking the reference member 31 is arranged to operate in parallel with the line connecting the rotational shaft 33a of the pressing roller 33 of the workpiece W in the horizontal direction The pressing force of the pressing roller 33 against the workpiece W is configured to be adjustable. The roller moving member 34 includes an air cylinder mechanism that stops when the pressing roller 33 comes into contact with the workpiece W, so that a constant pressing force is always applied even if the tapered surface Wc of the workpiece W is uneven. Furthermore, the roller moving member 34 includes an adjustment mechanism (not shown) that can adjust the pressing force so that the amount of elongation of the tape member T can be adjusted. The pressing force is set according to the inclination angle of the tapered surface Wc of the workpiece W.

As shown in FIG. 5, the tape re-pressing portion 40 is capable of moving the re-pressing rubber 41 in the horizontal direction, and the re-pressing rubber 41 for re-pressing the tape member T attached to the tapered surface Wc of the workpiece W. A re-pressing horizontal moving member 42 capable of adjusting the re-pressing pressure. The re-pressing rubber 41 is formed in the same shape as the outer shape (tapered surface) of the workpiece W. Further, the re-pressing rubber 41 is made of urethane rubber (Shore A hardness 50), and even when the outer peripheral surface (tapered surface) of the workpiece W varies due to molding error or the like, the rubber is deformed so that the tape is deformed. The entire surface of the member T can be pressed against the workpiece W. The re-pressing horizontal moving member 42 includes an air cylinder mechanism configured to stop when the re-pressing rubber 41 comes into contact with the workpiece W and to apply a constant pressure to the workpiece W. Further, the re-pushing horizontal moving member 42 is arranged on a line passing through the central axis W ₀ of the workpiece W.

  Next, an operation of attaching the tape member T to the workpiece W (a method for manufacturing a workpiece with a tape) by the tape applying device 1 configured as described above will be described with reference to FIGS. 6 and 7. The workpiece W is manufactured by attaching the tape member T by the tape applying apparatus 1 by the following method. 6 and 7 are plan views showing the operation of attaching the tape member T by the tape applying apparatus 1 according to the present embodiment.

  First, the workpiece W supplied from the external mechanism is positioned by being fixed to the fixing jig 11 with a clamp, and phased by the workpiece rotating unit 12. When the phasing of the workpiece W is completed, the workpiece W is transported to the temporarily pasting position of the tape member T by the workpiece moving unit 13 as shown in FIG.

  When the workpiece W is transported to the temporary attachment position, the suction block 21 that sucks the tape member T supplied by the external mechanism is temporarily moved by the tape lifting and lowering portion 22 and the tape moving portion 23 as shown in FIG. The tape member T is temporarily attached to the workpiece W by being conveyed toward the attaching position. Specifically, the suction block 21, whose attachment height is adjusted by the tape lifting / lowering unit 22, is transferred by the tape moving unit 23 to the temporary attachment position of the workpiece W at the tip end Ta of the tape member T. Then, when the suction block 21 comes into contact with the workpiece W, the suction block 21 is deformed, and the tip portion Ta of the tape member T is pressed against the workpiece W by the repulsive force of the suction block 21, and the tip portion Ta of the tape member T is temporarily It is pasted. The temporarily attached position in this state becomes a reference position for the accuracy of attaching the tape member T, and the tape member T is attached so as to be parallel to the plane perpendicular to the axial direction of the workpiece W without inclination from the main position.

  When the tip portion Ta of the tape member T is affixed to the workpiece W, air is ejected from the numerous holes of the suction block 21 by the vacuum generator, and the tape member T is separated from the suction block 21 to be free. When the tape member T is separated, the suction block 21 is retracted from the temporary attachment position by the tape moving unit 23. When the suction block 21 moves backward, as shown in FIG. 6C, the workpiece moving unit 13 moves the workpiece W on which the tape member T is temporarily attached to the attaching position.

  When the workpiece W moves to the pasting position, as shown in FIG. 7A, the roller moving member 34 is moved toward the workpiece W, and the diameter W of the workpiece W is larger than the center of the tape member T in the width direction. The pressing roller 33 is pressed at the same position in the horizontal direction as the side. In the present embodiment, the position where the pressing roller 33 is offset to the large diameter portion Wa side by 3 mm from the center in the width direction of the tape member T is pressed with a pressing force of 20N. At this time, the sticking reference surface 31a of the sticking reference member 31 is set at substantially the same height as the end portion position on the small diameter portion Wb side in the width direction of the tape member T. The distance from the taper surface Wc is set to 1.5 mm.

When the work W is pressed by the pressing roller 33, the work rotating unit 12 is rotated to rotate the work W fixed to the fixing jig 11, as shown in FIG. 7B. When the workpiece W rotates, the tape member T is sequentially pressed by the pressing roller 33 from the front end portion Ta of the tape member T temporarily attached to the workpiece W toward the rear end portion Tb. At this time, the tape member T is restricted by the sticking reference surface 31a so as not to be inclined with respect to the reference position of the sticking accuracy, and is restricted by the protrusion 32 so as not to be separated from the tapered surface Wc of the workpiece W. Thereby, the tape member T is affixed while the large diameter portion Wa side is pushed and extended in the affixing direction by the pressing roller 33 from the center in the width direction. That is, the rectangular tape member T is pasted while being deformed into a fan shape by the pressing roller 33. As a result, the large-diameter portion Wa side of the tape member T is long, parallel without tilting with respect to a plane perpendicular to the central axis W ₀ of the workpiece W, the tape member T is affixed to the outer peripheral surface of the workpiece W.

  As shown in FIG. 7C, when the tape member T is pasted, the roller moving member 34 is moved backward to separate the pressing roller 33 from the workpiece W, as shown in FIG. When the roller moving member 34 moves backward, the re-pressing horizontal moving member 42 is moved in the horizontal direction to press the tape member T attached to the work W against the re-pressing rubber 41 with a constant force. Thereby, the whole tape member T is affixed on the workpiece | work W. FIG.

When the material and shape of the tape member T and the outer diameter of the workpiece W change, the distance (gap) A between the protrusion 32 of the reference member and the taper surface Wc of the workpiece W, and the center of the tape member T in the width direction. The offset amount B of the pressing roller 33 and the pressure C of the pressing roller 33 are adjusted. Thus, with respect to any plane perpendicular from also temporarily attached position to the center axis W ₀ of the workpiece W in the shape allows sticking a tape member T so as to be in parallel without inclination.

  As described above, the tape applicator 1 according to this embodiment includes the pressing roller 33 that presses the tape member T, the roller moving member 34 that can adjust the pressing force of the pressing roller 33, and the applying position by the pressing roller 33. And a roller position adjusting mechanism 33b that can adjust the angle. Therefore, the pressure roller 33 is installed at a position offset to the large diameter portion side in the width direction of the tape member T with respect to the workpiece W to which only the tip portion Ta of the tape member T is attached. By applying pressure, the large-diameter portion side in the width direction of the tape member T can be extended.

Thus, the workpiece W is rotated while being pressed by the pressing roller 33, and the tape member T is continuously pressed to deform the rectangular tape member T into a fan shape as shown in FIG. Can be pasted on the workpiece W. As a result, with respect to a plane perpendicular to the central axis W ₀ of the workpiece W, it is possible sticking of the tape member T so that the inclination without parallel (horizontal).

  Moreover, the tape sticking device 1 according to the present embodiment includes a sticking reference surface 31a, a protrusion 32 protruding from the sticking reference surface 31a, and a moving mechanism capable of adjusting the distance between the protrusion 32 and the taper surface Wc of the workpiece W. And. As a result, the sticking reference surface 31a is installed at the same position as the small diameter portion side in the width direction of the tape member T, and the tape member T is inclined by the sticking reference surface 31a so that the tape member T is not lowered when being pressed and attached. Can be guided. Moreover, the tape member T deform | transforms by restrict | limiting the distance with the workpiece | work W in the projection part 32, and always making the small diameter part Wb side of the tape member T contact the sticking reference plane 31a at the distance (gap amount). The bending amount of the tape member T can be adjusted so that it is not too much.

As a result, to control the deformation amount of the tape member T, by be modeled after the tape member T to the attached reference surface 31a, without being dependent on the shape of the tapered surface Wc of the work W, the center axis W ₀ of the workpiece W It is possible to attach to a predetermined position with high accuracy in parallel to a vertical plane without inclination.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to embodiment mentioned above. In addition, the effects described in the embodiments of the present invention only list the most preferable effects resulting from the present invention, and the effects of the present invention are not limited to those described in the embodiments of the present invention.

  For example, in the present embodiment, the pressing roller 33 is moved relative to the workpiece W by rotating the fixing jig 11 that fixes the workpiece W. However, the present invention is not limited to this. For example, a configuration in which the pressure roller 33 is relatively moved by fixing the workpiece W and rotating the pressure roller 33 may be employed.

  In the present embodiment, the tape member T is securely attached using the tape re-pressing portion 40. However, the present invention is not limited to this. Depending on the size of the tape member and the tilt angle of the workpiece, it may not be necessary. Moreover, you may re-press a tape member by another method.

  Moreover, in this embodiment, although demonstrated using the case where the tape member T was affixed on the workpiece | work W with the one tape affixing part 30, the structure using a some tape affixing part may be sufficient. For example, when a tape member is affixed to a workpiece having a raised shape, the tape member can also be affixed by disposing tape affixing portions (or pressing rollers) on both sides with respect to the center of the tape member in the width direction.

1 Tape application device 12 Work rotation part (relative movement means)
31 Affixing reference member 31a Affixing reference surface (regulation means)
32 Protrusion (regulation means)
33 Pressing roller 33b Roller position adjusting mechanism (roller position adjusting means)
34 Roller moving member (pressing force adjusting means)
T Tape member W Workpiece Wa Large diameter part Wb Small diameter part Wc Tapered surface W ₀ Central axis

Claims (7)

In the tape applicator for attaching a tape member in a direction perpendicular to the axial direction of the workpiece to the tapered surface of the workpiece having a continuous tapered surface from the large diameter portion toward the small diameter portion with respect to the axial direction of the central axis,
A pressing roller that presses the large-diameter portion side of the tapered surface against the tapered surface from the center in the width direction orthogonal to the sticking direction of the elastically deformable rectangular tape member;
The tape member restricts the position of the end of the tape member on the small diameter portion side from the center in the width direction of the tape member, and the end of the tape member on the small diameter portion side and the taper. A regulation means for regulating the distance from the surface;
Relative movement means for moving the pressing roller relative to the workpiece in the direction in which the tape member is applied, and
Pressing the large diameter portion side of the tape member with a pressing force capable of elastic deformation while the end portion on the small diameter portion side of the tape member is regulated by the regulating means so as to be horizontal with respect to the axial direction. While relatively moving the pressure roller while sticking to the taper surface while extending the large diameter portion side of the tape member in the sticking direction,
A tape applicator characterized by that. A pressing force adjusting means capable of adjusting a pressing force with which the pressing roller presses the tape member according to an inclination angle of the tapered surface;
The tape applicator according to claim 1. Roller position adjusting means capable of adjusting the pressing position of the pressing roller with respect to the tape member in the axial direction;
The tape sticking apparatus according to claim 1 or 2, characterized in that The regulating means is
A sticking reference surface that regulates an end position of the tape member on the small diameter portion side;
At least a position corresponding to the axial direction of the pressing roller, the distance between the taper member and the end on the small diameter side of the tape member is regulated so as to sandwich the end on the small diameter side of the tape member. A protrusion that
The tape sticking device according to any one of claims 1 to 3, wherein The protrusion has an adjusting unit capable of adjusting a distance between the tapered surface and an end of the tape member on the small diameter side.
The tape applicator according to claim 4. In the method of manufacturing a workpiece with tape, in which a tape member is attached to the tapered surface of the workpiece having a continuous tapered surface from the large diameter portion toward the small diameter portion in a direction orthogonal to the axial direction of the workpiece,
The end position on the small diameter portion side of the taper surface is regulated from the center in the width direction orthogonal to the sticking direction of the elastically deformable rectangular tape member, and the end portion on the small diameter portion side of the tape member and the tape member While the distance from the taper surface is regulated by the regulating means, the large diameter portion side of the taper surface is pressed against the taper surface with a pressing force that can be elastically deformed from the center in the width direction of the tape member by the pressure roller. A tape sticking step of sticking the tape member to the taper surface while moving the pressure roller relative to the work and extending the taper side of the tape member in the sticking direction.
A method for manufacturing a work with a tape, characterized in that: Before pressing the tape member with the pressing roller, the pressing roller has a pressing force adjusting step for adjusting the pressing force with which the pressing roller presses the tape member according to the inclination angle of the tapered surface.
The manufacturing method of the workpiece | work with a tape of Claim 6 characterized by the above-mentioned.

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