JPS5847683Y2 - Lead wire insertion mechanism - Google Patents

Description

[Detailed description of the invention] The present invention is a lead wire feeder that simultaneously inserts a plurality of lead wires into a magazine used for automatically assembling lead wires of electronic components such as variable resistors. A lead wire separation mechanism in which multiple lead wires arranged on the trough of a book are installed at the tip of the trough.
3-101958) relates to the structure of a lead wire insertion mechanism for separating a plurality of lead wires one by one through a chute and simultaneously inserting a plurality of lead wires into round holes in a magazine set in advance by an operator.

Conventionally, this type of lead wire feeding means is carried out by an operator using his or her fingers or tweezers to insert the magazine into a magazine having a round hole with a diameter slightly larger than the diameter of the lead wire (i.e., this magazine has a round hole with a diameter slightly larger than the diameter of the lead wire). I was inserting one tube at a time (I can't do it).

However, the diameter of the lead wire (for example, φ0.70 to φ0
゜71) is thin, and the round hole diameter of the magazine (e.g. φO, SO
) are also small, so it takes a lot of time to insert multiple pieces, and at the same time, workers have to do this for long hours every day, which puts a lot of strain on their eyes and hands, and causes significant fatigue.

Therefore, in order to improve the work content and reduce the number of man-hours, it is necessary to develop a lead wire feeder that easily inserts the lead wire into the round hole of the magazine, and in particular, the realization of a node wire insertion mechanism is an important issue. Ta.

An object of the present invention is to provide a lead wire insertion mechanism that is highly reliable, has a simple structure, and is easy to operate.

According to the present invention, a plurality of chutes having an inner diameter slightly larger than the maximum outer diameter of the lead wire whose one end is connected to the discharge port of the lead wire separation mechanism, and the chutes are inserted and fixed into holes provided at a predetermined array pitch. A chute holder installed at the bottom of the chute holder, and a tapered guide part with an opening slightly larger than the inner diameter of the chute arranged in the same arrangement as the chute holder on the surface in contact with the chute holder, and a tapered guide part installed on the same axis as the tapered guide part. A pair of lead wire positioning plates that have holes with a diameter slightly larger than the lead wire diameter and are divided into two halves so that all the holes are divided into two in the axial direction, and the lead wire positioning plates are connected to the lead wire insertion holes. a compression spring that generates a force on the guide shaft in such a direction as to keep the pair of lead wire positioning plates together at all times; A push-up shaft that moves up and down by a drive cam that moves each of the lead wire positioning plates on the shaft, and a roller that is disposed on each of the pair of lead wire positioning plates and transmits the force of the push-up shaft to the lead wire positioning plates. The configured lead wire insertion mechanism is obtained.

Next, an embodiment of the lead wire insertion mechanism of the present invention will be described with reference to the drawings.

Figure 1 shows target lead wire 1 with a circular cross-sectional shape and a flange.
The diameter is φ0.71.

FIG. 2 shows the configuration of an embodiment of the lead wire insertion mechanism according to the present invention, in which a plurality of chutes 2 having an inner diameter slightly larger than the maximum outer diameter of the lead wire are used to guide the lead wire 1 from the lead wire separating mechanism. , one end to the outlet of the lead wire separation mechanism (
(not shown) the other end is fitted into the chute holder 3.

The distance between the chute holder 3 and the lead wire separation mechanism is such that the shaft 4
It is fixed at regular intervals.

The chute holder 3 is positioned with positioning pins 6 installed in the horizontal base 5 and fixed with screws 7.

The horizontal base 5 is fixed to the vertical base plate 8 with screws 9.

At the bottom of the chute holder 3, there is a round hole φC of the magazine 10.
When inserting the lead wire 1 into the hole, a pair of lead wire positioning plates 1 are divided into two in the longitudinal direction so that all of the plural pieces are divided into two in the axial direction of the hole.
The lead wire positioning plate 11 is divided into two in the longitudinal direction, and on both end faces thereof there are rollers 13 that are moved by push-up shafts 12 that are moved up and down by drive cams (not shown) of a vertical drive source. , 14 is the installation.

Further, a guide shaft 16 that serves as a guide when the lead wire positioning plate 11 moves in the direction of the arrow 100 against the compression spring 15 is provided from the vertical base plate 8 through the node wire positioning plate 11. has a compression spring 1
There are five stoppers 17.

3 and 4 are cross-sectional views taken along line xx' in FIG. This is what is shown.

When the lead wire positioning plate 11 is in the chute holder 3
The tapered guide part 18 has an opening slightly larger than the inner diameter of the chute 2 in the same arrangement as the passage hole of the chute 2, and a φA part slightly larger than the flange part 19 of the lead wire 1 and a diameter φd are coaxially connected to the tapered guide part 18. There is a positioning hole φB that is almost the same as φB, and φA and φB are connected by a tapered hole 20.

In the lead wire insertion mechanism of the present invention having the above configuration,
The operation of this embodiment will be explained step by step with reference to the above drawings and FIG. 5 showing the plan view of the embodiment in FIG.

After the magazine 10 is set by the operator at the bottom of the lead wire positioning plate 11 (this is the state before it becomes Fig. 2 and is not shown)
The magazine 10 is raised by a lifting mechanism until the two come into close contact.

This state is shown in FIG.

The lead wires 1 fall one by one into each chute 2 by a lead wire separation mechanism activated when the magazine 10 rises to a fixed position.

The lead wire 1 that has fallen passes through the hole in the chute holder 3 and reaches the tapered guide portion 18 of the lead wire positioning plate 11.
, then passes through the φA section, and the tip of the lead wire 1 passes through φB.

Here, the round hole φC of the magazine 10 is mechanically coaxial with the φB hole of the lead wire positioning plate 11.
Since the lifting mechanism has been completed, the tip of the lead wire 1 enters the round hole φC of the magazine 10 until the flange 19 catches on the tapered hole 20 and stops.

That is, the operation of passing and inserting the lead wire 1 up to this point is performed with mechanical dimensional accuracy.

Next, when the lead wire separation mechanism is activated, the drive unit motor starts rotating in response to a signal from the control unit (not shown), which causes the drive cam to operate (not shown), and the push-up shaft 12 moves to the roller 13. 14 (7) It rises after a while.

The compression spring 1 wound around the guide shaft 16 by rising
While bending 5, the lead wire positioning plate 11 moves in the direction of arrow 10.
The tapered guide part and φA, φ are expanded in the 0 direction.
The B hole is divided in the axial direction.

That is, as a result of this operation, the flange 19 of the lead wire 1 that was blocked by the tapered hole 20 can pass through φB, so after the lead wire positioning plate 11 is sufficiently pushed and expanded by the push-up shaft 12, the lifting mechanism of the magazine 10 When the magazine 10 is lowered, the flange 19 is inserted into the round hole φC without contacting the lead wire positioning plate 11.
Can be inserted up to the neck of 9.

When the magazine 10 is lowered, the push-up shaft 12 is lowered by the drive cam.

Therefore, since the compression spring 15 returns, the lead wire positioning plate 11 moves in the direction of the arrow 101, and the next lead wire can fall.

On the other hand, since the magazine 10 is lowered to the same position as in the set state, the operator takes it out.

Note that the lead wire positioning plate 11 is pushed up and the shaft 12
Before dividing the magazine into two equal parts in the direction of arrow 100,
It was also found through experiments that the lead wire 1 is more likely to be inserted when vibration is applied to the wire.

This is considered to be because the diameters of the lead wire 1 and the round hole φC are almost the same as described above.

As explained above, according to the present invention, the structure is simple and the node wires separated one by one are connected to multiple chutes at the same time.
It can be inserted reliably into a round hole that is approximately 90 μm thicker than the diameter of the lead wire, and the surface where the lead wire enters cannot be chamfered due to process reasons, improving the conventional manual insertion work. , a lead wire insertion mechanism that contributes to reduction in man-hours can be obtained.

In addition, since the present invention does not limit the wire diameter, the mechanism allows sufficient insertion for other wire diameters by manufacturing a chute, lead wire positioning plate, etc. to fit the lead wire.

[Brief explanation of the drawing]

Figure 1 shows lead wires showing objects to be inserted according to the present invention;
FIG. 2 is a perspective view showing an embodiment of the lead wire insertion mechanism according to the present invention, FIGS. 3 and 4 are cross-sectional views of a certain position in FIG. 2, and FIG. A plan view is shown. In the figure, 1 is a lead wire, 2 is a chute, 3 is a chute holder, 4 is a shaft, 5 is a horizontal base, 6 is a positioning pin, 7 is a screw, 8 is a vertical base plate, 9 is a screw, 1
0 is a magazine, 11 is a lead wire positioning plate, 12 is a push-up shaft, 13 and 14 are rollers, 15 is a compression spring, 16 is a guide shaft, 17 is a stopper, 18 is a tapered guide portion, 19 is a flange portion, and 20 is a It is a tapered hole.

Claims (1)

[Scope of utility model registration request] In a mechanism for simultaneously inserting a plurality of flanged lead wires used for electronic components into a magazine having a plurality of round holes with approximately the same diameter as the lead wire, the lead wire has one end connected to an outlet of a lead wire separation mechanism. a plurality of chutes having an inner diameter slightly larger than the maximum outer diameter of the chutes, a chute holder in which the chutes are inserted and fixed into holes provided at a predetermined array pitch, and a surface installed at the bottom of the chute holder and in contact with the chute holder. Insert the shoe l in the same arrangement as the chute holder.
- A tapered guide part with an opening slightly larger than the inner diameter, and a hole coaxially with the tapered guide part with a diameter slightly larger than the lead wire diameter, so that all the holes are divided into two equal parts in the axial direction. a pair of lead wire positioning plates divided into two equal parts, a guide shaft for moving the lead wire positioning plates perpendicular to the axial direction of the lead wire insertion hole, and a guide shaft for moving the lead wire positioning plates at right angles to the axial direction of the lead wire insertion hole; a compression spring that generates a force in a direction to unite the lead wire; and a thrust-L-shaped shaft that is moved up and down by a drive cam that moves the lead wire positioning plate on the force field shaft, respectively, against the compression spring;
A node wire insertion mechanism comprising rollers disposed on each of the pair of lead wire positioning plates and transmitting the force of the push-up shaft to the lead wire positioning plates.