JP3105625B2 - Method of manufacturing switch board - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a switch plate of various switches such as a turn signal switch for a vehicle.

[0002]

2. Description of the Related Art Conventionally, as this kind of technique, there is a manufacturing method disclosed in Japanese Patent Application Laid-Open No. 1-173517, for example. This manufacturing method, when insert-molding a plurality of metal pieces and terminals and the like on a base, for example, a switch pole board,
This is a means using a hoop in which both ends of the plurality of metal pieces and the like are connected by a carrier constituted by a conductive plate or the like. The hoop is
It is manufactured by pressing a strip-shaped conductive plate having a width from one carrier to the other carrier.
The conventional manufacturing method insert-molds a metal piece formed in the center of the hoop, cuts and removes the carrier, and completes a base product.

[0003]

According to the above-mentioned conventional manufacturing method using a hoop, a metal piece is press-formed from a strip-shaped conductive plate, and the size of the conductive plate is increased while insert-molding the metal piece on a base. The carrier occupying the portion is cut and removed. For this reason, a large amount of material is consumed, causing an increase in cost.

[0004]

SUMMARY OF THE INVENTION A method of manufacturing a switch plate according to the present invention has been invented in order to solve the above-mentioned problems, and a press for press-forming switch plates separated from conductive plates. Step, a wire supply step of supplying a resin wire, a switch plate supply step of setting the switch plate to a desired position, a support step of supporting the resin wire and the switch plate with a mold, the resin wire, and A molding step of insert-molding the switch plate with the resin on the switch plate; and connecting the resin wires with the resin wire in the molding step.
A fixed-dimension feeding step of intermittently feeding the sWitched and formed switch electrode plate to a constant size, and a cutting step of cutting a connecting portion of the resin Wire interposed betWeen a series of switch electrode plates, No need for switch plate and carrier part
While effectively utilizing the conductive plate material formed with a conductive plate,
It is another object of the present invention to provide a method for manufacturing a switch board with a large amount of productivity.

[0005]

First Embodiment A preferred embodiment of a method for manufacturing a switch pole board according to the present invention will be described below in detail with reference to FIGS. First, a press forming process for manufacturing a switch plate to be mounted on a switch pole board will be described in detail with reference to FIGS. 1, 2, 3, 4, 5, and 6.

Reference numeral 1 denotes a bobbin around which a belt-shaped conductive plate 2 is wound, and is rotatably installed. 3 feeds the conductive plate 2 from the bobbin 1 and intermittently moves the conductive plate 2 to the first press 5 at intervals of a predetermined distance in accordance with the cycle of the punch 5b.
It is a fixed size feeder for sending to the cleaning device 4.

FIG. 4 is an explanatory view showing one embodiment of the fixed size feeder 3. As shown in FIG. Reference numeral 3a denotes a fixed-size feed portion, which converts the rotational motion of the connecting portion 3c installed at the eccentric position of the rotating cam 3b into a linear motion by the crank 3d and reciprocates. The reciprocating motion is a reciprocating slider crank mechanism having a crank radius equal to the length from the center of the cam 3b to the fixed point of the connecting portion 3c. The fixed-size feeding section 3a reciprocates with a stroke twice as long as the crank radius. Fixed size feed unit 3
The operating cycle of the punch 5 of the first pressing machine 5 that moves up and down
It is the same as that of b.

[0008] Reference numeral 3e denotes a holding portion provided on the fixed-size feeding portion 3a, which intermittently moves up and down by hydraulic pressure, thereby moving the table 3f.
Then, the conductive plate 2 is pressed and fixed. The presser 3e descends when the reciprocating fixed-size feeder 3a linearly moves from the bobbin 1 side to the first cleaning device 4 side, and the table 3f.
The conductive plate 2 is sandwiched between the surfaces and fixed. When the fixed-size feeding section 3a linearly moves (reversely rotates) from the first cleaning device 4 to the bobbin 1, the holding section 3e rises and the table 3 moves.
Release from f-plane.

Reference numeral 3g denotes a fixed portion, and the holding portion 3h moves up and down intermittently by hydraulic operation, so that the holding portion 3h and the table 3h are moved.
Press and fix the conductive plate 2 with i. The presser 3h moves up and down in the opposite direction to the presser 3e of the fixed size feeder 3a. That is, the holding portion 3h of the fixed portion 3g is provided with the fixed size feeding portion 3a.
When the holding portion 3e is lowered, the holding portion 3h is raised, and when the holding portion 3e is raised, the holding portion 3h is lowered. When the fixed-size feeding section 3a moves straight from the bobbin 1 toward the first cleaning device 4, the holding section 3e and the surface of the table 3f pinch the conductive plate 2 to move straight. Part 3
When a moves straight from the first cleaning device 4 toward the bobbin 1, the conductive plate 2 is fixed to the holding portion 3 h of the fixed portion 3 g and the table 3.
It is sandwiched between the i-plane and fixed and stationary. In the figure, 3j and 3k
Is a roller.

The first cleaning device 4 is a device for cleaning the conductive plate 2 with a cleaning liquid 4a such as trichlorethylene. The first press 5 is a machine that performs a first press working for press-forming the conductive plate 2. The first press 5 has a grip tension 5a, and has a function of intermittently feeding the conductive plate 2 for each desired size in accordance with the vertical movement period of the punch 5b. The grip tension 5a has, for example, the same structure as that of the above-described fixed-size feeder 3.

The first pressing machine 5 intermittently feeds the conductive plate 2 with the grip tension 5a and punches out the conductive plate 2 sequentially, and presses the conductive plate 2 into, for example, the shape of the conductive plate 2 shown in FIG. The first press machine 5 first punches a hole 2f in the conductive plate 2 in the first step, for example, to form a first processed portion 2a shown in FIG. The first press 5
In the second step, a long hole 2g is punched in the conductive plate 2 in the second step to form, for example, the second processed portion 2b shown in FIG. Further, the first press machine 5 partially punches the terminal portion 2h and the contact portion 2i on the conductive plate 2 in the third step,
The tertiary processing portion 2c shown in FIG. 2 is formed.

Reference numeral 6 denotes a second cleaning device for cleaning oils and the like adhered to the conductive plate 2 by the first press machine 5 with a cleaning liquid 6a such as trichloroethylene. 6b and 6c are conductive plates 2
Is a roller for sending the paper.

Reference numeral 7 denotes a second press for performing a second press on the conductive plate 2 after the first press 5. The second press 7 has a grip tension 7a, and has a function of intermittently feeding the conductive plate 2 at desired dimensions in accordance with the operation cycle of the vertical movement of the punch 7b. Also,
The grip tension 7a has, for example, the same structure as the above-described configuration of the fixed size feeder 3.

The second press 7 intermittently feeds the conductive plate 2 in the shape of the tertiary processing portion 2c processed by the first press 5 to the second press 7 with a grip tension 7a. The second press 7 is a first stage process,
For example, the conductive plate 2 is punched into the shape of the fourth processing portion 2d shown in FIG. In the second step, the second press machine 7 bends, for example, the conductive plate 2 into the shape of the fifth processing portion 2e shown in FIG. The first press 5 and the second press 7 may be shared by one press.

Reference numeral 9 denotes a conveyor for sending the conductive plate 2 formed in the shape of the fifth processing section 2e shown in FIG. The transfer device 9 is, for example, a belt conveyor or the like.

The cutting machine 11 is a machine for cutting the connecting portion 2j of the conductive plate 2 shown in FIG. 3 to form the switch plate 8 shown in FIGS. 5 and 6. The cutting machine 11 is installed in, for example, an injection molding machine 12.

FIGS. 5 and 6 show a switch plate 8 completed by pressing the conductive plate 2 in the above-described manufacturing process.
FIG. The switch plate 8 has a large number of terminals 8a, 8b, 8c, 8d, 8e, 8f, and 8g connected in series. The shape of the switch plate 8 and the number of the terminals 8a to 8g are not limited to this embodiment, but may be any desired shapes. The switch plate 8 is sent by the supply robot 13 to the injection molding machine 12 shown in FIGS.

The supply robot 13 is an automatic machine for performing a switch plate supply step of setting the switch plate 8 in the mold 12a of the injection molding machine 12, and is installed in the injection molding machine 12, for example.

The resin wire 15 is formed of the same resin material as that of the switch pole board 10 in a linear shape, and has a circular or square cross section. The resin wire 15 is composed of a plurality of wires, and the wire supply device 1 is composed of a bobbin 14a
It is wound around 4. The resin wire 15 includes a grip tension 12b, a mold 12a, and a grip feeder device 12.
c, is sent to the fourth press 17 via the grip tension 16b, the third press 16 and the grip tension 17b, and cut. The resin wire 15 is released from the bobbin 14a by the grip tension 12b. As shown in FIGS. 7, 8, and 9, the resin wire 15 is inserted into the insert portion 15 together with the switch plate 8 by the injection molding machine 12.
b is insert-molded on each switch pole board 10.

As shown in FIG. 1, the wire supply device 14 is a device for performing a wire supply step of sending a plurality of resin wires 15 wound around a bobbin 14a to an injection molding machine 12.

The injection molding machine 12 is an automatic mold molding machine that performs a molding process for insert-molding the switch plate 8 and the resin wire 15 on the switch pole board 10. The injection molding machine 12 includes a mold 12a, a grip tension 12b, and a grip feeder device 12c. As shown in FIG. 7, in each switch pole plate 10 molded by the injection molding machine 12, an insert portion 15b of a resin wire 15 is insert-molded with a resin, and connected in a daisy chain at a connecting portion 15a.

The mold 12a can form a plurality of switch plates 10 at the same time. The mold 12a also performs a supporting step of supporting the switch plate 8 and the resin wire 15.

The grip tension 12b is intermittently adjusted according to the operation cycle of the injection molding machine 12 by the resin wire 15.
It is a device for sending in. The grip tension 1
Reference numeral 2b denotes a fixed size feeder which performs a fixed size feed process for feeding the resin wire 15 into the mold 12a. The grip tension 12b has the same structure as the above-described fixed size feeder 3.

The grip feeder device 12c is a machine that conveys the switch plate 10 to the third press 16 by intermittently feeding the resin wire 15 in accordance with the operation cycle of the punch 16a of the third press 16. . The grip feeder device 12c is, for example, a fixed-size feeder 3 described above.
It has the same structure as.

The third press 16 is provided with a cutting portion 8 of the switch plate 8 insert-molded on the switch plate 10 shown in FIG.
h, 8i, 8j, 8k, 8l, 8m, and 8n. The switch plate 8 in the switch plate 10 is
In the third press 16, seven terminals 8a to 8g
Divide into The third press 16 has a grip tension 16b. The operation cycle of the punches 16a and 17b of the third press 16 and the fourth press 17 is the same as the operation cycle of the injection molding machine 12.

The grip tension 16b grips the connecting portion 15a of the resin wire 15 and intermittently feeds it in accordance with the cycle of the punch 16a of the third press machine 16,
This is a machine for transporting the switch electrode board 10 to the third press 16. The grip tension 16b has, for example, the same structure as the above-described fixed-size feeder 3.

The fourth pressing machine 17 is provided for each switch plate 10
Connecting portion 15a of resin wire 15 interposed between each other
This is a machine that performs a cutting process for cutting off The fourth press 17 has a grip tension 17b. The switch board 10 is completed by the fourth press machine 17. The resin wire 15 has the insert portion 15 b remaining in the switch pole board 10.

The grip tension 17b intermittently grips the connecting portion 15a of the resin wire 15 in accordance with the operation cycle of the punch 17a of the fourth press machine 17, and the fourth press machine 1
This is a machine that conveys the switch electrode board 10 to the fourth press machine 17 by sending it to the side 7. The grip tension 17b has, for example, the same structure as that of the above-described fixed-size feeder 3.

Reference numeral 18 denotes a box for storing the switch plate 10 completed by the fourth press 17. 19
Is a recycle box for storing and pulverizing the connecting portion 15a of the resin wire 15 cut by the fourth press machine 17. The recycle box 19 is made of the resin wire 15
The connecting portion 15a of the switch board 10
This is a machine that grinds into a state that can be reused as a resin material. 20 is the resin wire 1 in the recycling box 19
5 is a delivery pipe for sending the connecting portion 15a of 5 to the injection molding machine 12.

The third press 16 and the fourth press 17 described above may be used as one press.

The first embodiment of the method for manufacturing a switch pole board according to the present invention is configured as described above. Next, the manufacturing process of the first embodiment will be described.

First, the switch plate 8 is formed from the conductive plate 2 by performing a press forming step. More specifically, first, the conductive plate 2 wound around the bobbin 1 is unwound, and the conductive plate 2 is fed to the fixed-size feeder 3, the first washer 4, the first press 5, the second washer 6, and the second It is set on the cutting machine 11 through the press machine 7. Fixed-size feeder 3, first washer 4, first press 5,
The second washer 6, the second press machine 7, the transfer machine 9, and the cutting machine 11 are started.

The conductive plate 2 wound on the bobbin 1 is fed intermittently by a fixed size feeder 3. The conductive plate 2 is cleaned by the first cleaning device 4 and sent to the first press 5. In the first press machine 5, the conductive plate 2 is intermittently fed by the grip tension 5a in accordance with the operation cycle of the punch 5b, and the first punching of the conductive plate 2 is performed. The conductive plate 2 has a first
In the press machine 5, for example, as shown in FIG.
a, the secondary processing part 2b and the tertiary processing part 2c are sequentially pressed.

The conductive plate 2 is cleaned again by the second cleaning device 6 and sent to the second press machine 7. The conductive plate 2 is fed into the second press machine 7 with the grip tension 7a in accordance with the operation cycle of the punch 7b of the second press machine 7. As shown in FIG. 3, for example, as shown in FIG.
It is sequentially pressed into the shape of the next processing part 2d and the fifth processing part 2e.

The conductive plate 2 formed in the shape of the fifth processing portion 2e is transferred to the cutting machine 11 by the transfer device 9 and
j is cut off to form the switch plate 8 shown in FIGS. Thus, the conductive plate 2 is transported from the bobbin 1,
And pressing the conductive plate 2 into a desired shape; and
Manufacturing and forming the switch plate 8 is a press forming process.

Next, the switch plate supply step will be described. The switch plate supply step is to set the switch plate 8 formed in the above-described press forming step at a desired position of the mold 12a. More specifically, in the switch plate supply step, the switch plate 8 formed by the cutting machine 11 is grasped by the supply robot 13 and transported to the mold 12a for setting.

Next, the wire supply step will be described. In the wire supply step, the resin wire 15 wound around the bobbin 14a of the wire supply device 14 is sent out to the mold 12a of the injection molding machine 12.

Next, the supporting step will be described. In the supporting step, the resin wire 15 and the switch plate 8 are connected to the injection molding machine 12.
Is supported by the mold 12a.

Next, the molding step will be described. In the molding step, the resin wire 15 and the switch plate 8 are insert-molded with resin to form the switch pole plate 10. At this time, the resin wire 15 is not melted by the heat of the mold 12a and the resin material.

Next, the constant size feeding step will be described. The constant-dimension feeding step is to intermittently convey the switch plate 10 in which the resin wire 15 is integrally formed in the above-mentioned forming step.
More specifically, in the fixed-size feeding process, the grip tensions 12b, 16b, 17b and the grip feeder device 12c grip the connecting portion 15a of the resin wire 15 and switch the switch plate in accordance with the operation cycle of the injection molding machine 12. 10
Are intermittently fed to switch plate 10 from injection molding machine 12 to third press 16 and fourth press 17
To be transported. The resin wires 15 can be automatically conveyed in a state where the resin wires 15 are connected to each other by being insert-molded in each switch pole plate 10 and arranged in a line.

In the third press 16, the cut portions 8h to 8n of the switch plate 8 are cut and the terminals 8a to 8n are cut.
Produce g.

Next, the cutting step will be described. The cutting step is performed by using a resin wire 15 between each series of switch pole boards 10.
Is to cut the connecting portion 15a. More specifically, the cutting step is to cut off the connecting portion 15a between the switch plates 10 by the fourth press machine 17 to produce a finished product of the switch plates 10.

In the first embodiment of the present invention, the switch plate 10 is formed by the above-described manufacturing steps.

The cut-off connecting portion 15a of the resin wire 15 is stored in a recycle box 19, crushed, sent to the injection molding machine 12, and recycled as a resin material for the switch board 10. For this reason, the present invention can effectively use the resin material of the resin wire 15 and reduce the material cost and the manufacturing cost of the switch pole board 10.

[0045]

Second Embodiment Next, FIG. 10, FIG. 11, FIG. 12 and FIG.
A second embodiment of the method for manufacturing a switch pole board according to the present invention will be described in detail with reference to FIG. The second embodiment of the present invention is the same as the first embodiment.
It is a manufacturing method of a switch electrode board in a case where a larger number of terminals are installed on the switch electrode board of the embodiment. Hereinafter, a second embodiment of the present invention will be described in detail.

FIGS. 10 and 11 show a switch plate 21 pressed in the same press forming step as the switch plate 8 of the first embodiment described above. The switch plate 21 is connected to the first
In addition to the terminals 8a to 8g of the embodiment, the terminals 21a, 21b, 21c, 21d, 21e, 21
When f, 21g, 21h, and 21i are provided on the switch plate 22, insert molding is performed on the switch plate 22. The switch plate 21 has a large number of terminals 21a.
To 21i are integrally connected. The switch plate 2
The shape of 1 and the number of terminals 21a to 21i are not limited to this embodiment, and may be any desired shape. The switch plate 21 is sent into the parts feeder 23.

As described above, the press forming step in the second embodiment of the present invention is to form the switch plates 8 and 21 from the conductive plate 2 in the same process as in the first embodiment.

As shown in FIG. 13, the parts feeder 23 is a supply device for aligning the switch plates 21 placed in an irregular state in the parts feeder 23 and sending them out individually. The parts feeder 23 is installed at or near the injection molding machine 26. Reference numeral 24 denotes a supply robot for transferring the switch plate 21 of the parts feeder 23 onto the table 25a of the transporter 25.

The transfer device 25 is a machine that sends the switch plate 21 on the table 25a to a predetermined position of the injection molding machine 26. The transporter 25 connects the switch plate 21 to the table 25a with a rail 25b installed at a desired position of the injection molding machine 26 or the like.
Guide up and move. Note that the transporter 25 may be configured by a belt conveyor or the like. Cutting machine 11 and transfer machine 2
The switch plates 8 and 21 on 5 are transported by the supply robot 13 to the mold 26a and supported. The supply robot 13 is installed in, for example, an injection molding machine 26.

As described above, the switch plate supply step of the second embodiment of the present invention is to set the switch plates 8 and 21 to the mold 26a by the supply robot 13.
The switch plate supply step may be performed manually.

The wire supplying step according to the second embodiment of the present invention comprises:
This is the same as the first embodiment, except that the resin wire 15 of the wire supply device 14 is sent to the injection molding machine 26.

In the injection molding machine 26, the resin wire 15 and the switch plates 8 and 21 are supported by the mold 26a, and the switch pole plate 22 is resin-molded. The injection molding machine 26 has the same grip tension 26b and grip feeder device 26c as in the first embodiment.

As described above, in the supporting step of the second embodiment of the present invention, the resin wire 15 is
It is to support the switch plates 8 and 21.

The molding step of the second embodiment of the present invention is to form the switch pole plate 22 in which the resin wire 15 and the switch plates 8 and 21 are insert-molded by the injection molding machine 26.

The constant-size feeding step according to the second embodiment of the present invention comprises:
The switch pole plate 22 formed integrally with the resin wire 15 in the molding step is intermittently conveyed by the grip tensions 16b, 17b, 26b and the grip feeder device 26c.

The third press 16 is provided with switch plates 8 and 2
One of the cut sections 8h to 8n and 21k to 21r is cut, and 16 terminals 8a to 8g and 2
Divide into 1a to 21i. And the fourth press machine 1
7 cuts the connecting portion 15a of the resin wire 15 on each switch pole board 22.

As described above, the cutting process of the second embodiment of the present invention is similar to that of the first embodiment.
Is to cut the connecting portion 15a of the resin wire 15 between them.

According to the second embodiment of the present invention, a large number of terminals 8a to 8g and 21a
To form a switch pole plate 22 provided with a switch 21i.

In the present invention, the conductive plate 2 is formed in the press forming step.
To form a plurality of terminals 8a to 8g and 21a to 21i, while setting the terminals 8a to 8g and 21a to 21i in the mold 26a in the switch plate supplying step, and sequentially forming the terminals in the above-described supporting step and molding. By performing the process, the fixed-size feeding process, and the cutting process, the above-described switch electrode plate 22 can be formed. In this case, there is no need for the fourth press 17 to cut the cutting portions 8h to 8n and 21k to 21r of the switch plates 8 and 21.

[0060]

As described above, the method for manufacturing a switch electrode plate according to the present invention comprises the steps of:
Switch plate and resin wire separated from each other
And insert the switch plate with the resin wire.
Because it is connected, the machine automatically feeds the switch plate
Of it is not necessary to provide the conductive plate carrier, the width of the conductive plate
And shorten the length to produce one switch plate
The amount of the conductive plate used for (1) can be reduced. this
Accordingly, the conductive plate can be used to the maximum extent as a material for the switch plate, so that material cost and product cost can be reduced, and the amount of scrap iron can be reduced.
In addition, the present invention can use the resin wire as a carrier of the switch electrode plate, and can recycle the remaining resin wire cut off from the switch electrode plate as a resin material for the switch electrode plate. Expenses,
And the product cost can be reduced. In addition, the method for manufacturing a switch electrode board according to the present invention allows a plurality of presses to be configured by a single press, thereby greatly reducing work process time and improving productivity.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a manufacturing process of a switch electrode board according to a first embodiment of the present invention.

FIG. 2 is a front view showing a shape of a conductive plate when pressed by a first press according to the first embodiment of the present invention.

FIG. 3 is a front view showing a shape of a conductive plate when pressed by a second press according to the first embodiment of the present invention.

FIG. 4 is an explanatory view of a fixed size feeder according to the first embodiment of the present invention.

FIG. 5 is an enlarged front view of the switch plate according to the first embodiment of the present invention.

FIG. 6 is an enlarged plan view of the switch plate according to the first embodiment of the present invention.

FIG. 7 is a perspective view showing a state of the switch electrode plate when a resin wire is insert-molded by the injection molding machine of the first embodiment of the present invention.

FIG. 8 is an explanatory view of the injection molding machine according to the first embodiment of the present invention.

FIG. 9 is an enlarged front view of the switch electrode board when a resin wire is insert-molded by the injection molding machine according to the first embodiment of the present invention.

FIG. 10 is an enlarged front view of a switch plate according to a second embodiment of the present invention.

FIG. 11 is an enlarged plan view of a switch plate according to a second embodiment of the present invention.

FIG. 12 is an enlarged rear view of the switch pole board when a resin wire is insert-molded by the injection molding machine according to the second embodiment of the present invention.

FIG. 13 is an explanatory view of an injection molding machine according to a second embodiment of the present invention.

[Explanation of symbols]

1, 14a bobbin 2 conductive plate 3 fixed-size feeder 5 first press 5a, 7a, 12b, 16b, 17b, 26b grip tension 7 second press 8, 21 switch plate 9, 25 transporter 10, 22 switch electrode Board 11 Cutting machine 12, 26 Injection molding machine 12a, 26a Die 12c, 26c Grip feeder device 13, 24 Supply robot 14 Wire supply device 15 Resin wire 15a Resin wire connection portion 15b Resin wire insert portion 16 Third press machine 17 4th press

Claims (1)

(57) [Claims] 1. A press forming step of press forming switch plates separated from a conductive plate, a wire supplying step of supplying a resin wire, a switch plate supplying step of setting the switch plate to a desired position, and the resin wire. And a supporting step of supporting the switch plate with a mold; a molding step of insert-molding the resin wire and the switch plate with a resin on a switch electrode board; and the switch formed by coupling with the resin wire in the molding step. Manufacturing a switch electrode board, comprising: a fixed-dimension feeding step of intermittently feeding a pole board of a fixed size; and a cutting step of cutting a connection portion of the resin wire between a series of switch electrode boards. Method.