JPH0521781Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a manufacturing device for curled cords, and particularly to a manufacturing device that facilitates setting of the lengths of curled portions and non-curled portions.

"Prior Art" Generally, curled cords used in OA equipment, etc. are made of conductive wires covered with insulation, and have a spirally curled part with non-curled parts at both ends. The lengths of the curled portion and the non-curled portion are set depending on the type.

Conventionally, when manufacturing a curl cord, as shown in the example in FIG. code C
While rotating the arm 41 as shown by the arrow, the cord C is spirally wound around the mandrel S for a predetermined length to form a curled part X. Cut cord C at a position separated by length Y. Then, as shown by the chain line, another arm 41 is attached to the other end of the mandrel S, and the tip of the cord C is supported by the clip 42, and the cord C is sent into a heating furnace (not shown) to be bent. It is being done.

``Problem that the invention attempts to solve'' However, with such a technique, since the arm 41 is set to the length of the non-curled portion Y, it is possible to use a variety of types with different lengths of the non-curled portion Y. When manufacturing a curled cord, it is necessary to prepare a large number of arms 41 according to the length of each non-curled portion Y, and it is also necessary to replace the arms 41, which makes the work complicated. easy to become In this case, it may be possible to support the non-curled portion Y in the middle or both ends of the curled portion arise.

The present invention effectively solves the above problems.
It is an object of the present invention to provide a curl cord manufacturing device that allows easy adjustment of the lengths of curled portions and non-curled portions.

``Means for Solving the Problems'' The present invention includes a clamp that grips the tip of the cord on a rotating body that rotates along the axis of the mandrel support chuck, and a cord that is supported between the clamp and the mandrel. At the same time, an intermediate roll is provided that allows the support position of the cord to be selected from predetermined positions on the surface of the rotating body depending on the length of the non-curled portion, and furthermore, an intermediate roll is provided to support the cord in the middle of being wound around the mandrel and to adjust the position of the cord at the wrapping position. A traverse mechanism is provided for horizontally feeding the chuck in parallel with the axial direction of the chuck according to the change, and the traverse mechanism is provided with a cord cutting cutter movable in a direction toward and away from the axial center line of the chuck. It is characterized by

"Operation" The above-mentioned curl cord manufacturing apparatus supports the mandrel with a chuck, causes the tip of the cord to be gripped by a clamp, and uses intermediate rolls so that the length of the cord from the clamp to the mandrel becomes the length of the non-curled part. The support position of the cord is set, and by rotating the rotating body, the cord is wound around the mandrel via an intermediate roll, and the cord is fed horizontally using the traverse mechanism to form a curled portion of a predetermined length. After that, the cord is cut by moving the other cutter according to the length of the uncurled portion.

"Embodiment" Hereinafter, an embodiment of the curl cord manufacturing apparatus according to the present invention will be described with reference to FIGS. 1 to 6.

Reference numerals 1A and 1B in the figure represent a pair of chucks for supporting the shaft S, and the chucks 1A and 1B
As shown in FIGS. 1 to 3, these are supported on a frame 2 so as to be movable in directions toward and away from each other along rails 4A and 4B by propulsion mechanisms 3A and 3B such as air cylinders. has been done. Further, one side 1A of the chuck has a hole 5 into which the mandrel S is inserted.
As shown in FIG. 4, a pin 6 for pressing the mandrel S along its axis is provided in the hole 5 and is biased by a spring 6a. There is. A disk-shaped rotating body 7 is attached to the one chuck 1A and rotated along its axis.
are integrated.

The rotating body 7 is rotatably driven by a drive mechanism 8 in the direction shown by arrow A in FIG. Clamp 9 that grips
and a plurality of intermediate rolls 10 that support the cord C between the clamp 9 and the mandrel S are disposed. As shown in FIG. 4, in the clamp 9, a hook-shaped pin 12 slidably passes through the rotating body 7 and a pedestal 11 fixed to the surface thereof, and is pushed toward the back surface of the rotating body 7 by a spring 13. It has a biased structure so that the cord C is held between the hook-shaped portion of the pin 12 and the surface of the pedestal 11. Also,
On the frame 14 supporting the main shaft 7a of the rotating body 7 on the rail 4A, a clamp 9 is attached to the tip of the cord C at a position horizontally spaced from the axis of the chucks 1A and 1B toward the feeding side of the cord C. A pressing mechanism 15 such as an air cylinder for pressing the back of the pin 12 when gripping the pin 12 is provided facing the rotating body 7, and is located at a position spaced apart from the pressing mechanism 15 in the circumferential direction of the rotating body 7. A clamp release mechanism 16 similar to the pressing mechanism 15 is provided movably along the circumferential direction. On the other hand, the intermediate roll 1
0, as shown in FIG. 3, are removably attached to the peripheral edge of the rotating body 7, and are arranged in a row from the clamp 9 in the opposite direction to the rotating direction of the rotating body 7. ing. In addition, code 1
Reference numerals 7 and 18 indicate balance weights, which are removably disposed on the surface of the rotating body 7 at points symmetrical to the clamp 9 and the intermediate roll 10.

Further, reference numeral 19 is a traverse mechanism that supports the cord C that is being wound around the mandrel S on the side of the rotary body 7 and transports it laterally in parallel with the mandrel S. The traverse mechanism 19 includes a main table 22 that is moved in the direction indicated by arrow C in FIGS. 1 and 2 by a drive mechanism 21 along a feed screw 20 disposed on the pedestal 2; 22 is provided with a sub-table 25 movable by a propulsion mechanism 24 such as an air cylinder on a rail 23 provided along a front-back direction perpendicular to the movement direction thereof, and further on the sub-table 25, A rail 26 parallel to the rail 23 is provided, and a frame body 28 is movable in the longitudinal direction along the rail 26 by a propulsion mechanism 27, and a frame body 29 is fixed on the sub-table 25. They are arranged facing each other. The movable frame body 28 includes, as shown in FIG.
A plurality of rolls 30 for guiding the cord C toward the axes of the chucks 1A and 1B, and a guide pipe 31 for passing the cord C through the rolls 30 are provided. Further, a pair of cutters 32A, 32 for cutting the cord C are attached to the fixed frame 29.
B are arranged vertically facing each other, and one side 32A
can be slid up and down by a slide mechanism 33. Furthermore, the reference numeral 34 in Fig. 5
is a brake provided on one of the rolls 30,
Reference numeral 35 is used to move the frame 28 and cut the guide pipe 31 with the cutters 32A and 32B as shown by chain lines.
When the guide pipe 31 is inserted between
This is a roll that supports the tip of the

Further, in FIGS. 1 and 2, the reference numeral 36
is a mandrel supply device that supplies the mandrel S between the chucks 1A and 1B;
Lifting mechanism 3 such as air cylinder etc.
8 and transported between the chucks 1A and 1B.

When manufacturing a curl cord using a device configured in this manner, the mandrel S supplied from the mandrel supply device 36 is supported between the chucks 1A and 1B, and is pulled out from the drum (not shown). The cord C is guided to the surface of the rotating body 7 via the roll 30 of the traverse mechanism 19 and the guide pipe 31 as shown by the chain line in FIG. In this case, the tip of the guide pipe 31 is held between the cutters 32A and 32B so that the cord C does not touch the cutters 32A and 32B.
It is inserted between A and 32B and supported by the roll 35. Also, among the intermediate rolls 10 of the rotating body 7, the intermediate rolls necessary for forming the non-curl portion Y are left, and other intermediate rolls (for example, intermediate rolls indicated by A, B, and C in FIG. 3) and The corresponding balance weight (A, B,
In the case of intermediate roll C, remove the balance weights (denoted by D, E, and F). And the rotating body 7
With the clamp 9 and the pressing mechanism 15 facing each other, the pin 1 of the clamp 9 is pressed by the pressing mechanism 15.
2, insert the tip of the cord C between it and the cradle 11, and hold it.

Next, with the drive mechanism 8 in operation, the rotary body 7 is rotated in the direction shown by arrow A in FIG. As shown by the chain line, a non-curled portion Y is formed between the clamp 9 and the mandrel S.
It is wound around the mandrel S while ensuring the length of . Then, the traverse mechanism 19 is moved laterally so as to follow the change in the winding position of the cord C, and the cord C is wound around the mandrel S in a spiral manner.

After winding the cord C to the required length in this way, the clamp 9 of the rotating body 7 and the clamp release mechanism 1 are
6, and while moving the sub table 25 and frame 28 of the traverse mechanism 19 by the propulsion mechanism 27, the cutters 32A, 3
2B is placed at the cutting position that becomes the other non-curled portion Y. Then, cut the guide pipe 31 with the cutter 32.
A and 32B, and while holding both ends of the cord C with the finger F shown by the chain line in FIG. 2, cut the cord C and release the clamp 9. Remove the mandrel S from 1B. Next, as shown in FIG. 6, the material of code C,
A weight W according to the diameter, etc. is suspended, and in this state, the finger F is removed, and while supporting the mandrel S, it is sent into a heating furnace (not shown), heated and cooled to form a cord C. , a curled cord having non-curled portions Y at both ends of the curled portion X is completed.

Therefore, according to this manufacturing apparatus, not only can the length of the curled portion X be adjusted by increasing or decreasing the number of turns of the cord C, but also the length of the curled portion
The length of the non-curled portion Y can also be adjusted by adjusting the support position of the cord C relative to 0 and the movement of the cutters 32A and 32B of the traverse mechanism 19. It is something that can be done. Further, in this case, it is also possible to manufacture both non-curled portions with different lengths.

In the above embodiment, a plurality of intermediate rolls 10 are arranged on the rotating body 7, and an intermediate roll at an appropriate position is selected from among these according to the length of the non-curled portion Y to support the cord C. However, by providing the intermediate roll 10 movably along, for example, the circumferential direction of the rotating body 7, and moving the intermediate roll 10 according to the length of the non-curled portion Y, the connection between the clamp 9 and the mandrel S is achieved. In the present invention, the length of the cord C between the intermediate rolls may be adjusted. This includes a case where the support position of the cord is selected by moving the roll to a predetermined position on the surface of the rotating body.

"Effects of the Invention" As explained above, according to the curl cord manufacturing apparatus of the present invention, the following effects can be achieved.

(i) The cord gripped by the clamp is wound around the mandrel via an intermediate roll, and the support position by the intermediate roll can be selected, and the mandrel is supported by a traverse mechanism that supports the cord and feeds it horizontally. Since the cutter is provided that can move toward and away from the axis of the chuck, the length of the curled portion of the curled cord can be adjusted by increasing or decreasing the number of turns around the mandrel, and the length of the non-curled portion can also be adjusted. The length can be adjusted to any desired length by changing the support position of the cord by the intermediate roll and the position of the cutter, and various curled cords can be manufactured.

(ii) By setting the support position of the cord by the intermediate roll in advance, and having the cord gripped by the clamp, the cord is wound around the mandrel by the rotating body while being fed laterally by the traverse mechanism, and A series of cutting operations using a cutter can be automated, and work efficiency can be greatly improved.

[Brief explanation of drawings]

1 to 6 show an embodiment of the curl cord manufacturing apparatus according to the present invention, in which FIG. 1 is a front view, FIG. 2 is a view taken along the line - in FIG. 1, and FIG. The figure is a view taken along the - line of Fig. 2, Fig. 4 is a view taken along the - line of Fig. 3, Fig. 5 is a front view with a part of the traverse mechanism in section, and Fig. 6 is a view taken along the - line of Fig. 2.
The figure is a front view showing a state in which a weight is attached to the non-curled portion of a cord wound around a mandrel, and FIG. 7 is a front view schematically showing a conventional manufacturing apparatus for curled cords. 1A, 1B...Chuck, 7...Rotating body, 9...
... Clamp, 10 ... Intermediate roll, 11 ... Rest, 12 ... Pin, 13 ... Spring, 15 ... Pressing mechanism, 16 ... Clamp release mechanism, 19 ... Traverse mechanism, 20 ... Feed screw, 22...Main table, 23...Rail, 24...Propulsion mechanism, 25
... Sub-table, 26 ... Rail, 27 ... Propulsion mechanism, 30 ... Roll, 31 ... Guide pipe,
32A, 32B...Katsuta, C...Code, S...
...Mandrel, X...Curled part, Y...Non-curled part, W
……weight.

Claims (1)

[Scope of utility model registration request] In an apparatus for manufacturing a curled cord having non-curled portions Y at both ends of a curled portion X by spirally winding a cord C around a mandrel S, the mandrel rotates along the axes of chucks 1A and 1B on which it is supported. The rotary body 7 has a clamp 9 that grips the tip of the cord, and supports the cord between the clamp and the mandrel, and positions the cord at a predetermined position on the surface of the rotary body according to the length of the non-curled portion. An intermediate roll 10 that can be selected from among the above is provided, and a traverse mechanism 19 is provided that supports the cord in the middle of being wound around the mandrel and traverses the cord in parallel with the axial direction of the chuck in accordance with changes in the winding position. A curl cord manufacturing apparatus characterized in that the traverse mechanism is provided with cord cutting cutters 32A and 32B that are movable toward and away from the axis of the chuck.