Tape winding device

Abstract

To provide a tape winding device that can operate to adhere tape end parts to articles with high precision.SOLUTION: A tape winding device includes: a chuck that holds a wire harness clamp 22; a tape winding mechanism that movably holds a tape 1 wound in a roll shape; and an attachment mechanism that adheres an end 1a of the tape 1 to a clamp 22. The tape 1 is set as such that an adhesive surface of a portion that hangs down after being pulled out from a roll portion faces one surface of the clamp 22. An attachment roller 54 of the attachment mechanism adheres the end 1a of the tape 1 that hangs down below the clamp 22 along a surface opposite to the one surface. After the end 1a of the tape 1 has been adhered to the clamp 22 in this way, the tape winding mechanism winds the tape 1 around the clamp 22.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present invention relates to a tape winding device. [Background technology]

[0002] Some conventional automotive wire harnesses are equipped with a clamp for fixing to a body panel. For example, the clamp disclosed in Patent Document 1 has a plate portion that is placed along the electric wires of the wire harness and fixed to the electric wires by wrapping tape around the electric wires, and a locking portion that is provided in the center of the plate portion and press-fitted into a mounting hole in the body panel. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-23722 Summary of the Invention [Problem to be solved by the invention]

[0004] In the conventional wire harnesses described above, the task of securing the clamps to the wires with tape is performed manually by an operator, and automation has been desired. However, due to the difficulty of the task itself, no specific proposals have been made for automating this process. A particularly difficult aspect of automation is attaching the end of the tape to the clamp when starting to wind the tape. If winding of the tape begins without the end of the tape being attached to the clamp with high precision, the tape may become loose or misaligned, resulting in inconsistent quality.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a tape winding device that can attach the end of a tape to an article with high precision. [Means for solving the problem]

[0006] The present invention is a tape winding device comprising a zipper for holding an object having a strip-shaped plate portion, a tape winding mechanism for movably holding a roll of tape, and an attachment mechanism for attaching the end of the tape to the plate portion, wherein when the tape is pulled out from the roll portion and set so that the adhesive surface of the hanging portion faces one surface of the plate portion, the attachment mechanism attaches the end of the tape that has hung down below the plate portion along the surface of the plate portion opposite the one surface, and after the end of the tape is attached to the plate portion, the tape winding mechanism winds the tape around the plate portion. [Effects of the Invention]

[0007] According to the tape winding device of the present invention, the task of attaching the end of the tape to an article can be performed with high precision. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a diagram showing a tape winding device according to an embodiment of the present invention; [Figure 2] FIG. 2 is a diagram showing the tape winding mechanism of FIG. [Figure 3] FIG. 2 is a diagram showing the chuck of FIG. 1; [Figure 4] FIG. 2 is a diagram showing the bonding mechanism of FIG. 1. [Figure 5] 2 is a diagram showing a clamp and an electric wire wound with tape by the tape winding device of FIG. 1. [Figure 6] 2 is a diagram showing a state in which the tape winding mechanism and the joining mechanism in FIG. 1 approach a clamp held by a chuck. [Figure 7] 7 is a diagram showing a state in which the attachment mechanism of FIG. 6 attaches the end of the tape to the clamp. FIG. [Figure 8] 8 is an explanatory diagram illustrating the operation of the attachment mechanism of FIG. 7 attaching the end of the tape to the clamp. DETAILED DESCRIPTION OF THE INVENTION

[0009] A "tape winding device" according to one embodiment of the present invention will be described with reference to Figures 1 to 8. The tape winding device 10 shown in Figure 1 is used in the manufacture of automotive wire harnesses, and is a device that fixes a clamp 22, which serves as an "article," to an electric wire 21 of a wire harness 2 shown in Figure 5 by winding the clamp 22 with tape.

[0010] 5, the electric wire 21 is covered with the corrugated tube 23 except for the mounting area of ​​the clamp 22. The clamp 22 is made of resin and has a strip-shaped plate portion 221 and a locking portion 222 that is provided in the longitudinal center of the plate portion 221 and is press-fitted into a mounting hole in a vehicle body panel. The plate portion 221 is placed along the exposed portion of the electric wire 21 that is not covered by the corrugated tube 23, and is fixed to the electric wire 21 by wrapping tape around two locations, one end 221a and the other end 221b.

[0011] Furthermore, in the tape winding of this example, with the clamp 22 separated from the electric wire 21, the tape 1 is wound around the other end 221b of the plate portion 221 by about two turns, and the clamp 22 is aligned with the electric wire 21 without cutting the tape 1, and then the other end 221b and the electric wire 21 are wound together from there. The tape 1 is then cut once, and then the one end 221a and the electric wire 21 are wound together. By first winding the tape 1 around the clamp 22 alone in this way, it is possible to prevent the electric wire 21 and the clamp 22 from shifting in position.

[0012] The tape winding device 10 includes a chuck 3 that holds the clamp 22, a tape winding mechanism 4 that movably holds the tape 1 wound in a roll, and an attachment mechanism 5 that attaches the end 1a of the tape 1 to a plate portion 221.

[0013] As shown in FIG. 3, the chuck 3 includes a pair of clamping portions 31, 32 that clamp one end portion 221a of the plate portion 221, and a cylinder 33 that moves the pair of clamping portions 31, 32 toward and away from each other.

[0014] 2, the tape winding mechanism 4 includes a holding portion 41 that holds the center of the roll portion of the tape 1, a ring portion 42 that is disposed on the outer periphery of the roll portion of the tape 1, and a frame portion 43 that rotatably holds the ring portion 42. In addition, although not shown, the tape winding mechanism 4 also includes a moving means for moving the frame portion 43 and a chuck (different from the chuck 3) that holds the clamp 22.

[0015] The ring portion 42 has a space 42b for positioning the roll portion of the tape 1, and a threading portion 42a for threading the portion of the tape 1 pulled out from the roll portion to the outside of the ring portion 42.

[0016] The frame portion 43 has an attachment hole 43b to which the ring portion 42 is attached, and a through portion 43a formed by cutting out a part of the frame portion 43. The through portion 43a passes the clamp 22, the electric wire 21, and the attachment mechanism 5 from the outside of the frame portion 43 into the attachment hole 43b, i.e., into the through portion 43a.

[0017] The ring portion 42 rotates relative to the frame portion 43, and when the through-hole 42a is adjacent to and positioned directly above the through-hole 43a, it becomes possible to pass the clamp 22, the electric wire 21, and the attachment mechanism 5 into the through-hole 42a from the outside of the frame portion 43. At the start and end of winding the tape 1, the through-hole 42a is positioned directly above the through-hole 43a.

[0018] The frame portion 43 is also provided with a cutter 44 that cuts the tape 1 after it has been wound, and a pressing portion 45 that presses the end of the cut winding of the tape 1 to align it with the wire harness 2. The cutter 44 is displaced between a state where it is retracted into the frame portion 43 and a state where it protrudes toward the threading portion 43a. The tape 1 is cut by protruding toward the threading portion 43a.

[0019] As shown in FIG. 4, the pasting mechanism 5 includes a holding unit 52, a rotating unit 51, a pasting roller 54, a spring that biases the rotating unit 51 to one side in the rotation direction, and a cylinder 55 as a "drive unit" that raises and lowers the holding unit 52.

[0020] A pin 53 is passed through the rotating portion 51, and the pin 53 is attached to the holding portion 52, thereby rotatably holding the rotating portion 51 in the holding portion 52. The dashed-dotted line P in FIG. 4 represents the axial direction of the pin 53. The rotating portion 51 rotates in the R1 direction and the R2 direction around the dashed-dotted line P. The spring is a torsion spring, and biases the rotating portion 51 in the R2 direction. Therefore, when the rotating portion 51 rotates in the R1 direction, it rotates in the R1 direction against the biasing force of the spring.

[0021] The joining roller 54 is a roller that comes into contact with the non-adhesive surface of the tape 1, and is rotatably held by the rotating part 51. The center of rotation of the joining roller 54 is parallel to the dashed line P.

[0022] Next, a description will be given of the operation of the tape winding device 10. First, as shown in Figures 1 and 3, the chuck 3 holds one end 221a of the plate portion 221 of the clamp 22. In this state, the clamp 22 is separated from the electric wire 21.

[0023] Next, as shown in FIG. 6, the tape winding mechanism 4 and the application mechanism 5 approach the clamp 22 held by the chuck 3. In the state shown in FIG. 6, the threading portion 42a of the ring portion 42 is positioned directly above the threading portion 43a of the frame portion 43, and the portion of the tape 1 that is pulled out from the roll and hangs down is positioned between the threading portions 42a and 43a. In addition, the other end 221b of the plate portion 221 of the clamp 22 is positioned at the threading portion 42a. The adhesive surface of the hanging down portion of the tape 1 faces one surface of the other end 221b of the plate portion 221. This surface does not come into contact with the electric wire 21 and is the surface on which the locking portion 222 is provided. In addition, the tape 1 hangs down below the plate portion 221.

[0024] Next, when the holding portion 52 is raised by the cylinder 55, the joining roller 54 is positioned on the non-adhesive side of the tape 1 (right side in the figure), as shown in Figure 8(a). When the holding portion 52 is raised further, the joining roller 54 comes into contact with the outer peripheral surface 42c of the ring portion 42. This causes the rotating portion 51 to rotate toward the tape 1 side (left side in the figure), i.e., in the R1 direction, against the biasing force of the spring, and as shown in Figure 8(b), the joining roller 54 is positioned at the through portion 42a and comes into contact with the lower end of the other end 221b of the plate portion 221 via the tape 1.

[0025] When the holding unit 52 rises further, the rotating unit 51 rises while rotating further in the R1 direction (to the left in the figure), and as shown in FIG. 8(c), the joining roller 54 comes into contact with the surface of the other end 221b of the plate unit 221 opposite to the one surface via the tape 1. This opposite surface is the surface that comes into contact with the electric wire 21 (because the tape 1 is wound under the other end 221b of the plate unit 221, the other end 221b does not come into direct contact with the electric wire 21 but comes into contact with it via the tape 1). Then, when the holding unit 52 rises further, the joining roller 54 joins the end 1a of the tape 1 along the opposite surface of the other end 221b of the plate unit 221 as shown in FIG.

[0026] When the joining mechanism 5 joins the end 1a of the tape 1 to the opposite surface of the plate portion 221 as described above, the cylinder 55 lowers the holding portion 52, and the holding portion 52 retreats below the tape winding mechanism 4. Furthermore, when the joining roller 54 separates from the plate portion 221 and the ring portion 42, the urging force of the spring causes the rotating portion 51, which has been rotating in the R1 direction, to return to the R2 direction and return to its initial position.

[0027] After the joining mechanism 5 has retreated as described above, the tape winding mechanism 4 then causes the roll portion of the tape 1 to make a circular motion around the other end 221b of the plate portion 221, and winds the tape 1 around the other end 221b of the plate portion 221. That is, the tape 1 is wound under around the other end 221b of the plate portion 221. At this time, it is appropriate to wind the tape 1 around two times.

[0028] When the under-winding of the tape 1 is completed, a chuck provided in the tape winding mechanism 4 holds one end 221a of the plate portion 221, and the chuck 3 releases the plate portion 221. Next, the tape winding mechanism 4 moves together with the clamp 22 to the vicinity of the electric wire 21, positions the electric wire 21 in the passing-through portion 42a, and aligns the plate portion 221 of the clamp 22 along the electric wire 21.

[0029] Next, the tape winding mechanism 4 causes the rolled portion of the tape 1 to make a circular motion around the other end 221b of the plate portion 221 and the electric wire 21, and winds the tape 1 around the other end 221b and the electric wire 21. That is, the other end 221b and the electric wire 21 are wound together. At this time, the winding is preferably about three turns. After the underwinding, the tape 1 is not cut, and the tape 1 is wound together while connected to the plate portion 221. Then, after about three turns of winding, the tape 1 is cut by the cutter 44. Furthermore, since the winding end of the tape 1 cut by the cutter 44 is raised, it is pressed by the pressing portion 45 to align it with the electric wire 21.

[0030] As described above, when the tape has been wound around the other end 221b of the plate portion 221 and the electric wire 21, the chuck provided in the tape winding mechanism 4 releases the one end 221a of the plate portion 221. At this point, the clamp 22 is fixed to the electric wire 21, so even if the chuck releases the one end 221a, the clamp 22 does not separate from the electric wire 21. Thereafter, to ensure that the clamp 22 is fixed, the one end 221a of the plate portion 221 and the electric wire 21 are wound together. Furthermore, although under-winding is performed before the other end 221b of the plate portion 221 and the electric wire 21 are wound together, under-winding is not performed (under-winding cannot be performed) when the one end 221a of the plate portion 221 and the electric wire 21 are wound together because the plate portion 221 is already aligned with the electric wire 21.

[0031] In this way, the clamp 22 is automatically fixed to the electric wire 21 by the tape winding device 10. As described above, when the tape 1 is wound under-wound around the plate portion 221, the tape winding device 10 can use the attachment mechanism 5 to attach the end 1a of the tape 1 to the plate portion 221 with high precision. This allows the tape 1 to be wound without loosening, shifting, or variations in quality.

[0032] In the above-described embodiment, the tape winding device 10 is used to manufacture wire harnesses for automobiles, but the tape winding device of the present invention can also be used to wind tape around items other than the clamp 22 and the electric wire 21.

[0033] The above-described embodiment merely shows a typical form of the present invention, and the present invention is not limited to this embodiment. In other words, the present invention can be implemented with various modifications within the scope of the gist of the present invention. As long as such modifications still include the configuration of the present invention, they are of course included in the scope of the present invention. [Explanation of symbols]

[0034] 1 tape 3. Chuck 4 Tape winding mechanism 5. Adhesion mechanism 10 Tape winding device 22 Clamp (item) 51 Rotating part 52 Holding part 54 Pasting roller 55 Cylinder (drive unit) 221 Board part

Claims

1. a chuck for holding an article having a strip-shaped plate portion; a tape winding mechanism that movably holds a roll of tape; an attachment mechanism that attaches an end of the tape to the plate portion, In a state where the adhesive surface of the hanging portion of the tape pulled out from the roll portion faces one surface of the plate portion, the attachment mechanism attaches the end of the tape hanging down below the plate portion along a surface of the plate portion opposite to the one surface, After the end of the tape is attached to the plate portion, the tape winding mechanism winds the tape around the plate portion. A tape winding device characterized by the above.

2. The attachment mechanism includes: A holding portion; a rotating part rotatably held by the holding part; a joining roller rotatably held by the rotating portion; a spring that biases the rotating portion to one side in the rotating direction; a drive unit that raises and lowers the holding unit, When the holding part is raised by the drive part, the joining roller is positioned on the non-adhesive side of the tape, and when the holding part is raised further, the joining roller abuts against the tape winding mechanism, causing the rotating part to rotate toward the tape against the biasing force of the spring, and when the holding part is raised further, the joining roller joins the end of the tape along the opposite surface of the plate part.

2. The tape winding device according to claim 1.

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