JPS6141701Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pin-like object alignment and feeding device for aligning and feeding elongated pin-like objects in a predetermined direction.

Generally, in a connector plug for a printed circuit board, as shown in Fig. 1, a large number of square pins 1 each having an approximately square cross section are press-fitted into a connector base 2 as connection terminals. . When manufacturing such connector plugs using automatic machines,
It is necessary to automatically align and feed the square pins 1.

Conventionally, as a device for automatically aligning and feeding such square pins 1, a large number of square pins 1 are placed in a parts feeder, and as the parts feeder operates, the square pins 1 come out one after another from the discharge port at right angles. I drained it and put it in the pin shooter. Therefore, it is difficult to supply a large amount of square pins 1, and furthermore, the square pins 1 often get clogged, so the pin feeding has to be adjusted frequently, and even if it is an automatic machine, only one operator is required. The drawback was that you could not drive smoothly without it.

The present invention was developed to eliminate these drawbacks. By feeding square pins parallel to each other from a parts feeder and feeding them into the square groove of a pin chute through a pin chute supply holder, the pins are less likely to become clogged and a large amount of The present invention provides a device for aligning and feeding pin-like objects that can also be fed. Examples will be explained below.

FIG. 2 is a schematic diagram showing an embodiment of the present invention. In the figure, 3 is a parts feeder, 4 is a linear feeder, 5 is a pin chute supply holder, 6 is a pin shooter, 7 is a mating holder, 8 is a presser glass that covers the pin shooter 6, 9 is a vibrator, and 10 is for monitoring. It is a light emitter and receiver. The square pins 1 fed into the parts feeder 3 are sequentially discharged from the discharge port onto the linear feeder 4 by the operation of the parts feeder 3. The linear feeder 4 has several feed grooves 41 as shown in detail in FIG.
is provided, and the square pin 1 is fed through this. The cross-sectional shape of this feed groove 41 is semicircular as shown in FIG. It becomes possible to supply However, if four or more square pins 1 are lined up, overflow will occur, and the supply amount of square pins 1 will be limited at an appropriate point. Further, this linear feeder 4 is equipped with a pin supply stop mechanism 42,
When the light emitter/receiver 10 detects that an abnormality has occurred in the system, the supply of the square pins 1 can be stopped.

The square pin 1 fed on the linear feeder 4 drops into the pin chute supply holder 5 at its end. This pin chute supply holder 5 has a structure as shown in FIG. FIG. 5a is a plan view of this pin chute supply holder 5, and the pin chute 6 and mating holder 7 are visible at the bottom thereof. Also, b in the same figure is a sectional view taken along line A-A', and c is a cross-sectional view of B--B.
-B' sectional view. This pin chute supply holder 5 is provided with several holes 51, and each of the holes 51 has an input port 52 which opens in the shape of a rectangular funnel at the top thereof. The arrangement pitch of the holes 51 is equal to the pitch of the feed grooves 41 of the linear feeder 4. Further, the pin shooter 6 is provided with square grooves 61 with a pitch matching the pin arrangement of connector plugs etc. to be manufactured, and the arrangement pitch of the holes 51 of the pin shoot supply holder 5 is an integral multiple of the pitch of the grooves 61 ( In the case shown, it is 3 times). Moreover, each hole 51 of this pin chute supply holder 5
Each also has a through hole 53 for monitoring the amount of square pins 1 that have fallen into it.

Here, the vibrator 9 is 50 to 60Hz in the front, back, left, and right directions.
Vibration with an amplitude of approximately 0.5 mm is constantly generated, and this vibration is transmitted to the pin shooter 6. Therefore, the pin chute supply holder 5 also vibrates in accordance with this, and the input port 5 is removed from the linear feeder 4.
2, the square pin 1 that has fallen into the hole 51 is caused by this vibration to fall one by one into the square hole formed by the groove 61 of the pin shooter 6 and the mating holder 7. The square pins 1 that are orderly fed through the square holes in this manner are successively fitted into the connector base 2 by a method such as press-fitting, thereby completing a connector plug for a printed circuit board. In this case, the length of one side of the square hole is selected to be slightly longer than that of the square pin 1, so that all the square pins 1 fed by the pin shooter 6 are sent to the connector base 2. They will naturally be arranged in a direction that is convenient for insertion. Here, the presser glass 8 covering the top of the pin shooter 6 has a rectangular hole formed by covering a rectangular groove 61 similarly to the above-mentioned laminated holder 7, and is further fed through the groove 61. This is to enable the state of the square pin 1 to be monitored from the outside.

Next, a case where an abnormality such as a pin jam occurs will be explained. As mentioned before, each hole 51 of the pin chute supply holder 5 is provided with a through hole 53, and the light emitter/receiver 1 is installed before and after the through hole 53.
The amount of square pins in the hole 51 is monitored by arranging 0 and measuring the amount of light passing through the hole 51. That is, the pin chute supply holder 5 is vibrated by the vibrator 9, and the square pins 1 inserted into the hole 51 are also vibrating accordingly, so the amount of square pins 1 in the hole 51 must be small. The amount of light passing through the box increases, and if the amount of square pins 1 increases, the amount of light passing through the square pin 1 decreases. Therefore, for example, measure the amount of light passing when about 2/3 of the square pin 1 is inserted into the hole 51, and check if the amount of light detected by the light receiving side of the light emitter/receiver 10 is smaller than that value. If a predetermined output signal is generated at certain times, the amount of square pins 1 in the hole 51 of the pin chute supply holder 5 will increase due to pin jamming, etc. When this level is exceeded, a predetermined output signal is sent out. If the pin supply stop mechanism 42 of the linear feeder 4 is controlled by this output signal and the supply of the square pins 1 is stopped, the square pins 1 will not overflow from the holes 51.

If this abnormality is temporary and recovers quickly, the amount of detected light will again be below the specified value, and the pin supply stop mechanism 42 will be controlled by the detection signal to remove the square pin. All you have to do is restart the supply of 1. If the abnormality lasts for more than a predetermined time, it is detected by a timer or the like, and a buzzer or the like is used to notify maintenance personnel of the abnormality, and the system operation is stopped as necessary. Here, since the length of the pin shooter 6 is sufficiently long, it is possible to always keep a certain number of square pins 1 lined up in an orderly manner in this pin shooter 6, and therefore, it is possible to store a certain number of corner pins 1 in an orderly manner. Even if the supply of the square pin 1 to the groove 61 is cut off, there is no particular problem as long as it is within a certain predetermined time, and the product will not be defective due to this.

The above describes the embodiment of the invention relating to the alignment and feeding of square pins of a connector plug for a printed circuit board.
The present invention is not limited to this, and it goes without saying that it can be applied to the alignment and feeding of round pins and the like, as long as the pins are long and slender, regardless of their cross-sectional shape.

As explained in detail above, according to the pin-shaped object alignment and feeding device of the present invention, not only can a large number of pins be easily fed, but pin jams are also less likely to occur, there is extremely little rework in pin feeding, and the operator can easily feed a large number of pins. Smooth driving is possible even if it is not always on.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an example of a printed circuit board connector plug, Fig. 2 is a schematic configuration diagram showing an embodiment of the present invention, Fig. 3 is a plan view showing details of the linear feeder, and Fig. 4 is its FIG. 5 is a diagram showing a cross section of the feed groove, and FIG. 5 is a diagram showing details of the pin chute supply holder. DESCRIPTION OF SYMBOLS 1... Square pin, 2... Connector base, 3... Parts feeder, 4... Straight feeder, 41... Feed groove, 42... Pin supply stop mechanism, 5...
...Pin chute supply holder, 51...hole, 52...
... Input port, 53 ... Through hole, 6 ... Pin shooter, 61 ... Groove, 7 ... Laminating holder, 8 ... Presser glass, 9 ... Vibrator, 10 ... Light emitter and receiver.

Claims (1)

[Scope of utility model registration request] A parts feeder that sequentially feeds pin-like objects stored therein; a linear feeder that is equipped with a plurality of feed grooves and a pin supply stop mechanism and that feeds the pin-like objects that are fed out from the parts feeder in a stoppable manner; and this linear feeder. a pin chute supply holder which is disposed at the outlet of the feed groove and has a hole having a funnel-shaped input port at the top corresponding to the feed groove; and one pin-shaped object in the pin chute supply holder which corresponds to the hole A pin shooter having a plurality of grooves that are aligned and pass through, a mating holder that covers the grooves of the pin shooter, a vibrator that vibrates the pin chute supply holder, the pin shooter, the mating holder, etc., and a hole in the pin chute supply holder. and a detection mechanism that monitors the amount of pin-like objects in the feeder and controls the pin-feeding stop mechanism of the linear feeder to stop the supply of pin-like objects when an abnormality is detected. Feeding device.