JPS5926106B2 - Continuous assembly method of lead wire fixed terminal - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connector type connection method used when connecting printed circuit boards with lead wires, and provides a method that is highly mass-producible and can be manufactured at low cost. .

Conventionally, in such a wiring method, as shown in FIG. 1, the lead wires 1 are cut, the coating is peeled off, and then each lead wire is inserted into the P plates 2 and 3 and soldered.

Alternatively, if several wires were needed at once, they were bundled together with vinyl tape, and a connector 4 integrally formed with the lead wires was used. Figures 2 and 3 show manufacturing process diagrams for the method of fixing the connector 4 to this lead wire. First, a plurality of lead wires 1 are supplied in parallel from one supply reel 6, and a molding wire is inserted in the middle. The connector 4 is integrally molded with the lead wire 1 by providing a mold 7 and injecting resin. While feeding the lead wire by the required length, this molding is turned over and wound onto a take-up reel 8.
This method has the following drawbacks.

1. The molding time is approximately 20 seconds per shot, and the production duct is long, resulting in poor productivity.

2 If you want to speed up the production duct, you will need to add more equipment, which will increase the cost.If you use multiple molds, the lead wire length between the terminals must be constant or the equipment will not work properly. There are disadvantages such as complexity.

3. Also, when simultaneously molding the vinyl-coated wire with nylon, there is a large difference between the molding temperature and the heat resistance temperature.
It is also possible that the vinyl coating may stretch and cause deterioration.

The present invention solves the above-mentioned conventional drawbacks, and one embodiment of the present invention will be described below with reference to FIGS. 4 to 9.

Reference numeral 9 denotes a lead wire fixing component, 10 a lid, which is integrally molded with dummy wires 11 and 12 by respective dummy parts 9a and 10a, and is placed in a combined position.

Further, the lead wire fixing part 9 is continuously molded at a fixed pitch P and sent. 9b is a convex part provided on the bottom of the lead wire fixing part 9, which is provided so as to slightly dig into the sheathing of the lead wire 1. This convex part 9b and a convex part provided on the lead wire side of the connector 10 The portion 10b is provided opposite to the lead wire 1 in a direction perpendicular to the longitudinal direction of the lead wire, and securely fixes the lead wire.

Next, the manufacturing process will be sequentially explained.

First, the lead wires 1 are drawn out in parallel from the supply reel 13 through the grooved guide roll 14 that maintains the parallel.

By means of a block 16 and a block 17 pressed by the cylinder 15, the lead wire 1 is stopped so as not to be fed beyond a required length on the feeding side. Take-up reel 18
is a take-up reel that slowly rotates and winds up the lead wire while slipping.The lead wire is lightly tensioned in the middle, and the grooved guide roll 19, like the guide roll 14, plays the role of keeping the lead wire parallel. . The supply reel 20 and the supply reel 21 continuously supply the lead wire fixing part 9 and the lead wire 10 wound using the dummy wires 11 and 12, respectively, and the feed rolls 22 and 23 The configuration is such that each signal is sent at a fixed pitch P. After the lead wire fixing component 9 and the connector 10 are cut, the dummy wires 11 and 12 are wound onto dummy wire winding rolls 26 and 27 via guides 24 and 25.

The dummy wires 11 and 12 are gently tensioned between the take-up rolls 26 and 27 and the feed rolls 22 and 23. The cutting, assembly and fixing part 28 includes a cylinder 29 and a lower mold part 30 and a cylinder 31 and an upper mold part 32.
It consists of As shown in FIG. 9, in the lower mold part, a fixed bracket 33 is fixed to a main body 34, and a slider 35, which can be moved up and down by a cylinder 29, fixes a punch 36. The shaft 37 serves as a guide for the slider 35 and also fixes the die 38. Similarly, the upper mold part 32 has a cylinder 31 fixed to the main body 34. In this embodiment, the upper mold part 32 has a built-in ultrasonic unit (not shown), and the lower end holds a tool horn 39. Then,
It can be moved up and down by a cylinder 31. Here, when the lead wire fixing component 9 and the plug 10 are supplied facing the plurality of lead wires 1 at the center, the lead wire fixing component 9 is inserted into the dummy by the punch 36 of the lower mold using the die 38 as a guide. The wire 11 is separated from the dummy wire 11, and the lead wire fits into the lead wire groove of the lead wire fixing component 9. At the same time, the tool horn 39 descends, and the cutting edge of the die 38 separates the plug 10 from the dummy wire 12, and the die 38 guides the wire 10. It is assembled with the lead wire fixing part 9 and immediately ultrasonically welded. In this embodiment, the terminal 40 combined and fixed to the lead wire is the take-up reel 1.
The lead wire is wound into 8 strips and cut as appropriate during use, but in some cases, the lead wire may be continuously cut at predetermined pitches and removed by removing the insulation coating from the tip of the lead wire using a stripper. A device may also be provided. In this embodiment, after assembly and fixation, a check unit 43 having a check block 42 for checking the lead, lead wire, or terminal 40 is provided in the cylinder 41, and the lead is driven in the feed direction by a lead feed cylinder 44. Predetermined pitch 1
It is configured to obtain

The pitch 1 can be adjusted to any length using a stopper (not shown). Next, the operation of one cycle will be briefly explained although there are some overlaps.

First, the lead wires are stretched in parallel and stopped at blocks 16 and 17. The lead wire fixing part 9 and the putter 10 are fed one pitch P by the feed rolls 22 and 23, and then the lower die 30 and the upper die 32 are driven, and the lead wire fixing part 9 and the putter 10 are attached to the lead wire 1 and the dummy wire 11, 12, and are welded and fixed at the same time as they are assembled. Lower mold 30
When the upper mold 32 returns, the block 16 is opened to the zip block 17 by the cylinder 15, the lead wire 1 or the terminal 40 is checked by the check unit 42 (this may be checked from the beginning), and the cylinder 44 is used to check the lead wire 1 or the terminal 40 at a predetermined pitch. 1 and is wound up by a winding roll 18.
When the feed end of the cylinder 44 is reached, the block 16 stops the lead wire between the block 16 and the block 17 by the operation of the cylinder 15, and the chuck unit 42 opens and returns to its original position.V). ．． One cycle ends. In this way, the terminals 40 are successively assembled and fixed to the lead wires 1 and manufactured. Furthermore, although ultrasonic welding is used to fix the terminal in this embodiment, other methods such as thermal welding, adhesive, etc. may also be used.

As described above, according to the present invention, if 1=100 to 200, then 3
It can be produced in ~4 seconds/piece, which is superior in productivity compared to about 20 seconds/piece when integrally molded in the conventional case}b1 Cost reduction can be achieved.

Further, the material of the lead wire can be freely selected regardless of the material of the terminal, and furthermore, the terminal interval 1 can be freely and easily adjusted, which is a great advantage. Moreover, this method can be applied not only to wiring terminals but also to the assembly of other parts having dummy wires, and has great industrial value.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the wiring state of the printed circuit board of the lead wire terminal, Figs. 2 and 3 are a plan view and a cross-sectional view of the manufacturing process of the conventional device, and Fig. 4 is the lead wire fixing according to the present invention. FIG. 5 is a plan view of the lead wire fixing component, FIG. 6 is a cross-sectional view of the lead wire fixing component and the connector, and FIGS. 7 and 8 are views of the lead wire of the present invention. A sectional front view and a plan view of the manufacturing process of the device of one embodiment, and FIG. 9 shows a sectional view of the lead wire fixing part, the cutting and assembly of the plug, and the fixing device part. 1...Lead wire, 9...Lead wire fixing part, 10...Puta, 11, 12...
Dummy wire, 9a, 10a...Dummy part, 9b,
10b... Convex portion, 13... Lead wire supply reel, 18... Winding reel, 20...
...Terminal A supply reel, 21...Puta supply reel, 22, 23...Feed roll, 36.
...Punch, 38...Die, 39...
... Tool horn, 40 ... Lead wire and fixed terminal, 42 ... Lead wire chuck.

Claims (1)

[Claims] 1. Lead wire fixing parts fixedly provided at predetermined intervals on continuous dummy wires and lids fixedly provided at predetermined intervals on continuous dummy wires in the same way. The lead wire fixing component and the lid are placed facing each other with the lead wire being conveyed in a continuous state at the center, and then the lead wire fixing component and the lid are each attached to a predetermined position. The lead wire is separated from the dummy wire, the lead wire is narrowed between a lead wire fixing component and a lid, and the lead wire fixing component, the lid, and the lead wire are fixed as one body. Continuous assembly method of lead wire fixed terminal. 2. The lead wire fixing component is provided with a groove into which the lead wire fits, and a convex rib extending in a direction perpendicular to the lead wire is provided on at least one of the bottom of the groove or the lead wire side of the lid. A method for continuously assembling a lead wire fixed terminal according to claim 1.