JP2941011B2 - Wire feeder - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire feeder for continuously feeding a wire by a predetermined amount.

2. Description of the Related Art Conventionally, this kind of wire feeder has a configuration as shown in FIG. That is, in FIG.
Supply roller 3 for feeding a predetermined amount of wire 2 wound around
(A supply roller on the near side is omitted) and a pulse motor 4 for rotating the supply roller 3 by a predetermined amount.
And a sensor 5 for detecting the presence or absence of a wire.

Problems to be Solved by the Invention However, in such a configuration, after the sensor 5 detects that the wire rod 2 has been lost, and the apparatus automatically stops,
The operator was informed of this by a light display or buzzer notification.

At this time, the wire 2 remains without being sent from at least the portion of the supply roller 3 to a device in a subsequent process of the wire supply device. Therefore, the operator must remove the wire 2 remaining in the middle of the apparatus, replace it with a new reel 1, route the wire 2, and then set the wire 2 on the supply roller 3.

In other words, it becomes impossible to perform unmanned operation for a time longer than one reel consumption time. Also, even if the consumption time of one reel is longer than the unmanned operation time, if a new reel 1 is used after using the wire 2 to the end, the timing when the wire 2 disappears does not match the time zone where the worker is well. Not exclusively.

In this way, after the wire 2 has been lost,
Replacing the reel 1 and routing the wire 2 is an obstacle to increasing the operation rate of the apparatus.

The present invention solves the above-described problem.When the wire runs out, the remaining wire is removed, the process of setting the wire from the new reel to the supply roller is automatically performed, and the unmanned operation time is increased. It is another object of the present invention to provide a wire feeder capable of improving the operation rate.

Means for Solving the Problems In order to solve the above-mentioned problems, the wire supply device of the present invention performs a feeding motion while pinching the wire at the time of wire supply, and after feeding the remaining wire at the time of wire replenishment, the pinching state. And a wire supply unit that can hold the wires from a plurality of reels independently of each other, and moves so as to enable the supply of the supply wire to the wire supply unit during wire supply. And a remaining wire processing section for holding the remaining wire rod fed by the wire rod supply section during wire supply and pulling out the remaining wire rod for disposal.

Operation With the above-described configuration, the wire feeder that feeds the wire while nipping the wire at the time of wire supply releases the sandwiched state at the time of wire replenishment, and the remaining wire processing unit grips the tip of the wire remaining in the wire feeder. The wire replenishing section, which can be pulled out to other places and independently hold the wires from multiple reels, allows the wire currently supplied to be released and fed by the wire supplying section when supplying the wire, and at the time of wire replenishment , Which operates in a direction perpendicular to the wire feed direction to operate so that the separately supplied supply wire can be clamped by the wire supply section, and automatically replaces the supply wire when the wire runs out. In addition, the operation rate of the device can be improved.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a side cross-sectional view showing a schematic configuration of an electronic component insertion device as an embodiment of the wire supply device of the present invention, and FIG. 2 is a top view of a wire supply portion and a wire supply portion in the electronic component insertion device. is there.

In FIGS. 1 and 2, reference numeral 10 denotes a wire feeder, which is provided with feed rollers 14A and 14B capable of sandwiching wires 13A and 13B guided from the reels 11A and 11B via the rollers 12A and 12B. As shown in FIG. 4, one supply roller 14A is fixed at the tip of a rotation shaft 17A of a pulse motor 16 provided on a base 15, and the other supply roller 14B is a tip of a shaft 17B provided side by side with the rotation shaft 17A. The shafts 17A, 17B are fixed to each other and are interlocked and connected by gears 18A, 18B which mesh with each other. Further, the shaft 17B is mounted via a bearing in a direction orthogonal to the axis of the rotary cylinder 19 provided on the base 15, and the supply roller is rotated by the rotation of the rotary cylinder 19.
14B is opened as shown by a dashed line in FIG.
The pinching of the wire 13A or 13B can be released.

Reference numeral 20 denotes a wire supply unit provided at a position including the wire supply unit 10, and a pair of wire chucks 22A disposed on the slide base 21 in parallel with each other along the wire feed direction by the supply rollers 14A and 14B. , 22B and 23A, 23B, and one of the wire chucks 22A and 23A is located in front of the supply rollers 14A and 14B, and the other wire chucks 22B and 23B are the supply rollers 14A and 14B.
Are provided at positions corresponding to each other. The slide base 21 is provided with a rack 24 formed at one end by meshing with a pinion 26 driven by a pulse motor 25 provided on the base 15 so that the pulse motor
By the rotation of 25, it is possible to move in the direction orthogonal to the wire feed direction by the supply rollers 14A and 14B. In addition, wire rod supply section 20
Includes cylinders 27A and 27B provided on the base 15 at positions above the wire feed path by the supply rollers 14A and 14B and at positions corresponding to the pair of wire chucks 22A and 22B or 23A and 23B, as shown in FIG. In addition, the cylinders 27A, 27B are held by the rod chucks 22A, 22B or 23A, 23B when the wedge bodies 28A, 28B attached to the rod ends descend and engage with the rod chucks 22A, 22B or 23A, 23B. Is canceled. FIG. 5 (a) shows wire chucks 22A and 22B or 23A and 2A.
3B shows a state in which the wire is sandwiched, and FIG. 5 (b) shows a state in which the wedges 28A, 28B are engaged with the wire chucks 22A, 22B or 23A, 23B to release the wire. 29 is reel 11
When the sensor 20 detects the absence of the wires 13A and 13B between the rollers A and 11B and the rollers 12A and 12B, the wire replenishment operation is started.

Reference numeral 30 denotes a cutting insertion section provided adjacent to the wire supply section 10 and the wire supply section 20, and a cutter 31 for cutting the wires 13A and 13B.
And an insertion unit 33 for forming the cut wire into a predetermined shape and inserting it into the substrate 32.

Reference numeral 40 denotes a remaining wire processing unit provided adjacent to the cutting insertion unit 30, and includes a plate 43 attached to a rod end of a cylinder 42 provided on the base 41 and movable in a wire feeding direction. 43 is provided with a wire chuck 44 having the same structure as that of FIG. 5, and further provided with a cylinder 45 having a similar wedge and capable of releasing the wire chuck by the wire chuck 44. The cylinder 42 for moving the plate 43 is moved in the wire feed direction by a distance l shown in FIG.
It is configured to have a larger stroke.

The operation of the thus configured electronic component insertion device will be described below.

First, the origin state of each part of the apparatus will be described. In the wire rod supply unit 10 and the wire rod supply unit 20, a pair of wire rod chucks on the left side (upper side in FIG. 2) of the wire rod feed direction among the two sets of wire rod chucks 22A, 22B and 23A, 23B on the slide base 21. The center line of 22A, 22B is located at the position corresponding to the center line of feeding of the wire 13A by the supply rollers 22A, 22B, the cylinders 27A, 27B are lowered, and the wire chucks 22A, 22B are open. Wire rod 13A supplied from reel 11A
Is passed through the rollers 12A, the opened wire chuck 22A, the supply rollers 14A and 14B in a state of holding the wire 13A, and the opened wire chuck 22B, and the tip thereof is, as shown in FIG.
It is located at the position of the cutter 31 of the cutting insertion section 30. Another pair of wire chucks 23A and 23B hold a wire 13B supplied from the reel 11B via the roller 12B, and the wire 13B is held between the wire chucks 23A and 23B without slack. As shown in Fig. 2, the tip is wire chuck 23B.
The wire is cut immediately after and is in a wire rod supply standby state.

In the remaining wire processing section 40, the cylinder 42 is extended, the plate 43 is at the position closest to the cutting insertion section 30, the cylinder 45 is lowered, and the wire chuck 44 is open.

Next, the supply operation of the wire 13A will be described. The supply rollers 14A and 14B are rotated by the pulse motor 16, and the wire 13A is sent to the cutting / inserting section 30 by a predetermined amount. Next, the wire rod 13A is cut by the cutter 31, formed into a predetermined shape by the insertion unit 33, and then inserted into the substrate 32 (the cutting insertion section).
Details of the operation of 30 are omitted). By repeating this operation, the wire 13A can be continuously inserted into the substrate 32.

Next, the supply operation of the wire rod will be described. In FIG.
When the sensor 29 detects that the reel 11A is empty and the wire 13A has run out, the cutting / inserting unit 30 temporarily suspends the operation so as not to perform the insertion immediately thereafter. In this state, the tip of the remaining wire 46 is at the position of the cutter 31. Next, the pulse motor 16 is driven for a predetermined time (the end of the remaining wire 46 is
A, 14B, until they come off the supply rollers 14A, 14B) and stop, as shown in FIG. As a result, the leading end of the remaining wire 46 at the position of the cutter 31 previously passes through the cutting insertion section 30 and is sent to the remaining wire processing section 40. At this time, the remaining wire rod 46 is located between the claws of the wire rod chuck 44, and is then held by the cylinder 45 ascending. Further, the wire chuck 44 is moved by the cylinder 42 in the wire feed direction via the plate 43 while holding the remaining wire 46 therebetween. Since the cylinder 42 has a stroke larger than 1 shown in FIG. 7, the cylinder 42 is completely moved to the remaining wire processing section 40 to the end of the remaining wire 46, and then the cylinder 45 is lowered as shown in FIG. As a result, the wire rod chuck 44 is opened, and the remaining wire rod 46 falls on the tray 47. Thereafter, the cylinder 42 moves toward the cutting insertion section 30 and returns to the state shown in FIG.

Next, for replenishment of the new wire rod 13B, first, when the rotary cylinder 19 rotates, the supply roller 14B moves as shown by a dashed line in FIG. Also, the cylinders 27A and 27B rise and wait for the wire chucks 23A and 23B holding the new wire 13B to move. Next, by the rotation of the pulse motor 25, the slide base 21 moves in the direction B perpendicular to the wire rod feeding direction as shown in FIG. 3, and the wire rod 13B abuts on the roller surface of the supply roller 14A which is suspended. By the way, the movement is completed. Then, the supply roller 14B is moved from the position shown by the one-dot chain line to the position shown by the solid line in FIG.
A wire rod 13B from 11B is pinched by supply rollers 14A and 14B. Further, the cylinders 27A and 27B are lowered to
The wire rod 13B can be fed by opening the 3A and 23B. Finally, by supplying the wire 13B by the supply rollers 14A and 14B until the tip of the wire 13B moves from the position of the wire chuck 23B to the position of the cutter 31, the replenishing operation is completed, and the state is the same as that of FIG.

Thereafter, by resuming the operation of the cutting / inserting unit 30 that has been temporarily stopped, the cutting / inserting operation can be continued.

Advantageous Effects of the Invention As described above, according to the present invention, when the wire runs out, the operation of automatically removing the remaining wire and setting the wire from a new reel to the supply roller is performed. The operation time can be increased, and the operation rate of the device can be improved.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing a schematic configuration of an electronic component insertion device which is an embodiment of a wire rod supply device of the present invention. FIG. 2 is a top view showing a supply portion and a supply portion of the electronic component insertion device. FIG. 3 is a top view showing an operation state of the replenishing unit, and FIG.
(B) is a front view and a side view showing a supply section of the electronic component insertion device, and FIGS. 5 (a) and (b) are front views showing a detailed configuration and operation of a wire rod chuck of the supply section, and FIGS. FIG. 8 is a side sectional view showing an operation at the time of the remaining wire processing, and FIG. 9 is a side sectional view of a conventional wire feeder. 10 wire feeder, 11A, 11B reel, 13A, 13B wire, 14A, 14B supply roller, 15 base, 16 pulse motor, 19 rotary cylinder, 20 wire Replenishment department,
21: Slide base, 22A, 22B, 23A, 23B ... Wire rod chuck, 25: Pulse motor, 27A, 27B ... Cylinder, 29
…… Sensor, 30… Cutting insertion part, 31… Cutter, 40 ……
Remaining wire processing section, 41 ... Base, 42 ... Cylinder, 43 ...
... Plate, 44 ... Wire rod chuck, 45 ... Cylinder, 46
...... Remaining wire rod.

Claims (1)

(57) [Claims] 1. A wire supply section capable of releasing a sandwiched state after a wire is supplied and a feeding motion is performed while pinching the wire and feeding the remaining wire at the time of wire replenishment, and a wire from a plurality of reels is independently provided. And a wire replenishing unit that moves so as to enable delivery of the replenishing wire to the wire supply unit when the wire is supplied, and the remaining wire that has been sent by the wire supply unit when the wire is supplied, and is discarded. Wire supply device provided with a remaining wire processing unit that is pulled out to perform the operation.