JPS6260291A - Electronic part supply detector - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an electronic component feeding device for an automatic insertion machine that automatically inserts an electronic component having a coaxial lead wire portion into a predetermined hole of a printed circuit board or the like. Smell 2 p.

The present invention relates to an electronic component supply detection device that detects the presence or absence of electronic components at a predetermined position to be supplied.

2. Description of the Related Art Conventionally, an electronic component 51 has a large number of coaxial lead wire portions 61a and tslb taped at a fixed pitch with tape 62, as shown in FIG.

The electronic component 61 taped in this manner sometimes falls off by mistake during the manufacturing process, as shown in part A. Also, as shown in FIG. 5, tape 52a and tape 52b'
ii) There are cases where the adhesive tape 63 is used for connection, and in that case, the electronic component 51 may be missing at the connection point as shown in part B0Problems to be Solved by the InventionHowever, when taping in this way If there is a shortage of electronic components that have been installed, the electronic component supply device will not supply the electronic components and the automatic insertion machine will not be able to insert the electronic components into the printed circuit board at some points, requiring a worker to make corrections in the subsequent process. Therefore, there was a need for a device to detect missing electronic parts, and a three-vane device was needed, but there was no similar suitable detection device.

Therefore, the present invention adopts a structure in which when there is a shortage of electronic components, the electronic components are automatically fed to the next process by empty feeding a predetermined number of times until the detector detects the electronic components at a predetermined position, and the electronic components are automatically inserted. The aim is to significantly improve the reliability and availability of the machine.

Means for Solving the Problems In order to solve the above problems, the electronic component supply detection device of the present invention includes an intermittent rotational feeding mechanism that feeds the taped electronic components at a predetermined pitch, and a mechanism that cuts the lead wire portion at a predetermined position. A cutting mechanism is provided, and a swingable lever whose tip abuts on the lead wire section or the electronic component body at the predetermined position is provided, and a detector detects the swing displacement of the other end of the lever. The device is configured to detect the presence or absence of electronic components.

Effect: With the above-described configuration, the cutting mechanism lowers to cut the lead wire portion and supplies it to the entire electronic component process, and then the cutting mechanism moves up to rotate the rotary feed mechanism and lock the lead wire. The lead wire section that is attached also moves one pitch, and the tip of the lever contacts the lead wire section and swings.
The detector operates and detects that the electronic component has reached the predetermined position.0 If there is a missing taped electronic component, the tip of the lever will not come into contact with the lead wire, so it will not be detected. The device does not work. In this case, the cutting mechanism is lowered and lowered a specified number of times until the lead wire comes into contact with the lever and the detector is activated.
It moves upward repeatedly to feed the tape.

In this way, even if there is a shortage of taped electronic components, the electronic components can be reliably reached at the predetermined position by feeding the tape.

Embodiment 01 is an electronic component having lead wires 1a and Ib (5) in the same direction, and 2 is an electronic component having lead wires 1a and Ib (5) in the same direction. Part 1?: It is a tape that is taped to a plurality of parts at equal intervals P.The five-page structure of the rotary feeder is composed of a ratchet wheel 3, a ratchet lever 4, and a feed pawl 5, and the ratchet wheel 3 is taped at equal intervals. The ratchet lever 4 has thick teeth and is rotatably supported by the main body 6. The ratchet lever 4 is swingable about the axis of the ratchet wheel 3, and a feed pawl 5 is swingably supported at the tip. ing.

7 is a first spring that biases the feed pawl 5, and 8 is a stopper at the return limit of the ratchet lever 4. A lever 9 prevents the ratchet wheel 3 from reversing, and is biased by a second spring 10 and engaged with the teeth of the ratchet wheel 3. Reference numerals 11a and 11b denote a pair of feed wheels having a plurality of feed teeth 11C111d that engage the lead wires 1a and 1b in accordance with the interval P of the tape 2, and are integrally connected to the ratchet wheel 3.

Next, as a cutting mechanism, the shaft 12. Movable blade 13° Fixed blade 1
4, the shaft 12 is guided by the main body 6 so as to be linearly movable, and a movable blade 13 having cutting edges at both ends is attached to the tip. The fixed blade 14 also has cutting blades at both ends and is fixed to the main body 6 in a manner that guides the movable blade 13.

Reference numeral 15 denotes an air cylinder as a driving source, which is fixed to the main body 6, and a piston rod 16 is connected to the shaft 12 by a first pin 17. 18 is a spring C that urges the piston rod 16 in one direction. 19 is a fulcrum pin and one end is the shaft 12
The other end rotatably supports the link 2o and has a roller 21 attached thereto. The other end of the link 2o is swingably connected to a ratchet lever 3. As the anti-rotation mechanism, there is a guide 22 having a guide groove 22a that guides the vertical movement of the roller 21, and is fixed to the main body 6.

Next, as a detection part, 23 is a lever and the second. The tip 23a of the lever 23 is swingably guided by the pin 24, and a force is exerted on the tip 23a of the lever 23 so that it always comes into contact with the lead wire 19 due to the moment of the other end 23b.

24 is a photo sensor as a detector, Renoku-23
When the tip end 23a of the lead wire 1a is in contact with the lead wire 1a, the other end 23b blocks light from the optical axis, and is fixed to the main body 6 in a positional relationship such that light is emitted when the lead wire 1a is not in contact with the lead wire 1a.

Next, the operation of the configuration of this embodiment will be explained. When compressed air is supplied to the air cylinder 16 with the lead wire 1a of the electronic component 1 and the 1bi-taped tape 2 set on the feed wheels 11a and 11b, the piston rod 16 overcomes the biasing force of the third spring 18 and begins to descend. do.

As the piston rod 16 descends, the shaft 12 also descends, and the movable blade 13 attached to the tip connects the lead wires 1a, 1bi.
It is pressed against the fixed blade 14 and cut. At this time, the fulcrum pin 19 fixed to the shaft 12 is also guided by the roller 21 and the guide groove 22a of the guide 22 and lowered, and the link 20 swings the ratchet lever 4 and the feed pawl 6 in the direction of arrow C. However, at this time, the ratchet wheel 3 does not rotate in reverse (in the direction of arrow C) but maintains its position due to the action of the lever 9.

Next, when the compressed air in the air cylinder 16 is exhausted,
The piston rod 16 starts to fully rise due to the biasing force of the spring 18. As the piston rod 16 rises, the movable blade 13
．． Fulcrum pin 19. The link 20 also rises, and the feed pawl 5 meshes with the teeth of the ratchet wheel 3 when the link 20 has risen by a certain predetermined stroke S1→S2. Subsequently, by increasing the stroke from S2 to S0, the ratchet wheel 3 rotates by -pitch, and the lead wire 1a also moves by -pitch. As the lead 81a moves, the tip 23a of the lever 23 contacts the lead wire 1a and swings, and the other end 23b blocks the optical axis of the photosensor 24, allowing the electronic component 1 to reach a predetermined position. Detect what happened.

If the electronic component 1 is missing from the tape 2, the sensor 24 remains illuminated, and the air cylinder 16 reciprocates again to feed the tape 2 by -1.

In addition to the effects of the invention, the present invention provides a rotary feeding mechanism for intermittent feeding of all electronic components having lead wire portions taped at a predetermined pitch in the coaxial direction, a cutting mechanism for cutting the lead wire portions at predetermined positions, and a cutting mechanism for cutting the lead wire portions at predetermined positions. A swingable lever whose tip abuts against the lead wire section or the electronic component body at a certain position is provided, and a detector that detects the swinging displacement of the other end of the lever is used to detect the electronic component at the predetermined position. By adopting a configuration that detects the presence or absence of taped electronic components, even if there is a shortage of taped electronic components, the electronic components can be reliably fed to the next process by empty feeding a predetermined number of times until the detector detects the electronic components. This greatly improves the reliability and operation rate of automatic insertion machines.

[Brief explanation of the drawing]

Fig. 1 is a side view of an electronic component supply detection device according to an embodiment of the present invention, Fig. 2 is a sectional view taken along the XX/line in Fig. 1, and Fig. 3 is a sectional view taken along the Y plane in Fig. 2. , 4th
FIG. 6 is a plan view of a series of taped electronic components. 1... Electronic parts, 1a, 1b... Lead wires, 2... Tape, 3... Ratchet wheel, 4... Ratchet' Lever, 5...
...Feed claw, 11a, 11b...Track/feed wheel, 13
......Movable blade, 14...Fixed blade, 16.
... Air cylinder, 19 ... Fulcrum pin, 2゜ ... Link, 23 ... Lever, 24 ... 10 Basin sir as shown in the photo.

Claims (1)

[Claims] An apparatus that cuts an electronic component having lead wire portions coaxially taped at a predetermined pitch at a predetermined position and supplies the electronic component to the next process, the device locking the lead wire portions and cutting off the lead wire portions at predetermined positions. A rotary feeding mechanism that feeds parts intermittently,
A cutting mechanism that cuts the lead wire portion at a predetermined position, and a lever that is swingable when its tip abuts against the lead wire portion or the electronic component body at the predetermined position are provided, and the other end of the lever is swingable. An electronic component supply detection device characterized in that the electronic component supply detection device is configured to be capable of detecting the presence or absence of an electronic component at the predetermined position using a detector that detects the presence or absence of an electronic component at the predetermined position.