JPS59150499A - Device for automatically supplying circuit part - 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 - Technical Field of the Invention The present invention relates to a device for feeding circuit components one by one into an automatic component insertion device into a printed board, and particularly relates to a device for feeding circuit components one by one into an automatic component insertion device into a printed board. A plurality of electronic circuit components having lead wires facing in the same direction (referred to as "radial components" hereinafter and in the claims) are held in series with tape at the lead wire portions (referred to as "radial components" hereinafter and in the claims). The invention relates to an apparatus for automatically supplying circuit components one by one (referred to as "taped" in the scope of the invention).

・Technical background Taped radial parts are placed in an automatic parts insertion device.
In order to supply the parts one by one, one of the parts held by the tape is fed into a predetermined position, the fed part is gripped, and the lead wire of the gripped part is cut off from the tape.
It is necessary to expand the interval between the lead wires so that the fin surface of the automatic component insertion device can grip the component at the lead wire portion, and then transfer the component to the automatic component insertion device.

・Prior art and problems The conventional automatic feeding device for taped radial parts performs each of the above-mentioned processes at different positions.

That is, a gripping station that grips the fed parts;
The above can be achieved by arranging the cutting station for cutting off the tape, the expansion station for extending the lead wire, and the supply station for delivering the parts to the automatic insertion device in a straight line or in a circular line, and sequentially transferring the parts to each station. Performed each step.

However, such conventional equipment requires a transfer device to sequentially transfer the positioned and fed parts to each station, and it is also necessary to accurately control the positional accuracy of the parts being transferred, making the device complex and expensive. This has the disadvantage that it is easy to cause misalignment during the transfer of parts, making it impossible to feed the parts in an accurate position.Also, since each operation station is located separately, the equipment is It had the disadvantage of being large.

Purpose of the Invention The present invention enables parts to be accurately supplied by performing each of the above steps in a fixed position, avoiding the occurrence of positional shift during part transfer in conventional equipment, and also enables parts to be accurately supplied. The purpose of this invention is to make the device compact and simple in structure by eliminating the need for the device, and to provide an automatic radial component feeding device at low cost.

・Structure of the Invention The automatic feeding device for taped radial parts of the present invention has a feeding device that intermittently feeds the parts held on the tape one by one to a predetermined parts feeding position by driving the tape. The system includes a holding device that grips the circuit component body sent to the component supply position and holds the component in place, and a holding device that is placed below the component supply position and holds the lead wires and parts of the component after the holding device is activated. A cutter that advances and retreats toward the holding tape to separate the component from the tape, and a tapered surface that advances and retreats from below the component supply position 1rl to widen the interval between the lead wires of the held component after the cutter is activated. The lead wire expansion device is configured to carry out each of the above-mentioned steps while holding the component in place and supply it to the finger of the automatic insertion device. The feeding device includes a sensor that detects the entry of the component and a reversible drive motor that can freely control the rotation angle in order to improve the positional accuracy of the component sent to the component supply position. After the sensor detects the part ≧
The position of the part to be fed is controlled by repeating the following operations: feeding out the tape, and feeding the tape back until the part fed to the rear part of the cutter is at a position before passing the sensor. It is better to be able to precisely control each individual element.

-Embodiments of the invention Next, embodiments shown in FIGS. 1 to 7 will be described. In Fig. 1, A is a parts supply position, and radial parts 2...2 held by tape 1 are fed into this position A, and delivered from this position A to the finger 3 of the automatic parts insertion device. be done.

4 generally indicates a feeding device that sequentially feeds the radial parts 2...2 to a component supply position 1λA, and includes a pin belt 6 that engages with sprocket holes 5...5 provided in the tape 1; Detects the pulley 7.8 around which the pin belt 6 is wound, the electric motor 9 for driving the bin belt, the receiving plate 10 that presses the tape 1 against the pin belt 6, and the lead wire of the component entering the component supply position fEi'A. A sensor 11 for detecting the edge of the tape 1 and a sensor 12 for detecting the edge of the tape 1 are shown.

The electric motor 9 is a pulse motor, and the sensors 11 and 12 are photoelectric sensors. The operation of this feeding device is as follows. That is, when the electric motor 9 is commanded to feed a component, the electric motor 9 starts rotating in the normal direction, and after the sensor 11 detects the lead wire of the leading component 2a, it rotates by a predetermined angle and feeds the leading component 2a. Accurately position and stop at component supply position A. Then, after the cutter described later operates to cut the leading end of the tape 1, the electric motor 9 reverses, and stops when the sensor 12 detects passage of the cut end of the tape 1, and starts feeding the next part. to wait. This standby position setting is
Without providing the sensor 12, the number of lead wires that cross the sensor 11 when feeding the tape 1 is forced, and the number of lead wires that cross the sensor 11 when the tape 1 is fed back becomes one component 2 from the above count number. It can also be set by stopping the reverse rotation of the electric motor 9 when the number minus the number of lead wires provided is reached.

13.14 is a frame, and holding rods 15 and 16 arranged facing each other toward the component supply position A are attached to this frame 1.
3.14, respectively, so as to be slidable. 17 is a guide rail installed between frames 13 and 14,
On this guide rail 17! Slide plates 18, 19 are slidably provided. The rear ends of the slide plates 18, 19 are bent and fixed to the rear ends of the holding rods 15, 16, respectively. 20 is a cylinder for moving the holding rods 15 and 16 back and forth toward the parts supply position A;
0 is attached to the slide plate 18, and its operating rod 21
is fixed to the slide plate 19. 22 is a stopper provided to limit the stroke of the holding rod 16;
The stopper 22 comes into contact with the frame 14 when the holding port/throat 16h moves toward the SiB product supply position A and its tip reaches the position where it comes into contact with the main body of the component at the position A. . 23 is a compression H bolt interposed between the frame 13 and the rear end of the slide plate 18;
The holding rod 15 is provided at the component supply position 11 (provided to provide resistance to the advancing movement toward A).

The operation of the retaining rods 15,16 is as follows.

That is, when the leading component 2a is positioned at the component supply position A by the feeding device 4, air pressure is supplied to the rod end side of the cylinder 20. Then the slide plate 18.19
are urged toward each other, but the slide plate 18
Since resistance is applied by the spring 23, first the slide plate 19 slides and the rod 16 is moved to its stopper 22.
The holding rod 15 advances until it comes into contact with the frame 14, that is, until the tip of the holding rod 16 comes into contact with the main body of the fed part, and then the slide plate 18 slides against the resistance force of the spring 23 and the holding rod 15 advances. Then, the parts fed in are held between the holding rods 15 and 16.

Then, the cutting process and lead wire expansion process described later are performed.
When the finger 3 holds the lead wire of the component after the finger 3 is held, air pressure is supplied to the head end side of the cylinder 20, and the holding rods 15 and 16 are retracted to transfer the component to the finger 3.

24 to 27 are cutters arranged below the component supply level flA, and the cutters 24 and 25 are cutters 24 and 25 that are cut horizontally to cut the lead wire of the fed component and cut the component and the tape 2. The provided cutters 26 and 27 are vertically provided cutters for cutting the tape 2 between the fed part and the next part. The drive mechanism for the cutters 24 to 27 is shown in FIG.

In FIG. 3, 28 is a guide rod installed between the frames 13 and 14, 29 and 30 are cutter holders that are slidably attached to the guide rod 28, and cutters 24 and 26 are attached to the holder 29. and 27 are attached to the holding body 30. 31 is a guide rail provided parallel to the guide rod 28; 32 and 33 are slide stands provided slidably along the guide rail 31; and 34 is a link between the slide stand 32 and the cutter holder 29. The fixed bracket 36 is the slide base 33 and the cutter holder 3
A bracket 36 connecting and fixing the slide base 33 is a stopper for limiting the stroke of the slide base 33, and is fixed to the frame side together with the guide rail 31. Reference numeral 37 denotes a cutter driving cylinder mounted on the bracket 35 , and its operating port rad 38 is fixed to the bracket 34 . 39, when the cylinder 37 is urged in the retracting direction,
This is a tension spring interposed between the bracket 34 and a frame (not shown) to provide resistance to the sliding movement of the slide base 32.

This cutter drive mechanism includes the aforementioned holding rod 15.16.
Similar to the drive mechanism shown in FIG. 1, the cutter holders 29 and 30 are sequentially moved by the action of a spring 39 and a stopper 36. When air pressure is supplied to the rod end side of the cylinder 37, the slide base 33 first slides out.
~ Slide the cutters 25 and 27 until they come into contact with the collar 36.
to advance. The position of the stopper 36 is set at such a position that the cutting edge of the cutter 25 comes into contact with the lead wire of the fed component in this cutter advanced position, and the cutting edge of the cutter 27 comes into contact with the side surface of the holding tape. When the slide table 33 contacts the stopper 36, the slide table 32 slides against the resistance of the spring 39, and the cutters 24 and 26 advance to cut the lead wire and the holding tape, respectively. After this cutting, air pressure is supplied to the head end side of the cylinder 37, and the cutters 24 to 27 immediately return to their original positions. In FIG. 3, reference numeral 40.41 denotes a guide extending from the cutters 24.26 and slidingly attached to the opposing cutters 25.27, and is provided to ensure mutual engagement of the opposing cutters. Although not shown in the figure, the cutter holder 29
A push rod is provided toward the cutter holder 30 so that the cut pieces of the holding tape are discharged from the side without falling onto a lead wire expansion device, which will be described later.

Reference numeral 42 shown in FIG. 1 is a lead wire extension device installed directly below the component supply position A in order to widen the distance between the lead wires of the components held by the holding rods 15 and 16. A cylinder 44 for raising and lowering is shown. In reality, appropriate guides, limit switches, etc. are provided outside of these members to connect the lead wire extension device 4.
It has a structure that allows accurate control of the operations of 2. head 43
As shown in FIG. 2, there are two grooves 45 for receiving the lead wires.
．． 4 to 6 show how the lead wire of the component 2 is expanded by raising and lowering the conical head 43 provided with the conical head 45. Figure 4 shows part 2
Figure 5 shows the state after the tape portion of ft has been cut by the cutter, and the lead wire extension device ft is shown between the lead wires of component 2.
In the state in which the head 43 of 1if 42 has entered, FIG. 6 shows the state after the head 43 has returned, and the interval between the lead wires of the component 2 is expanded as shown in FIG. The reason why the lead wire is expanded in this way is that when the finger 3 of the automatic component insertion device grips the component 2 at the part of the lead wire as shown in FIG.
This is to ensure that the finger 3 holds the finger 3. The distance between the lead wires when gripped by the fingers 3 corresponds to the distance between the through holes of the printed board into which the component is inserted. Reference numeral 46 in FIGS. 1 and 7 is a groove provided on the gripping surface of the finger 3 for receiving a lead wire.

The operation of the parts automatic supply device configured as described above is as follows. The feeding device 4 feeds and positions the leading piece 2a of the taped radial parts 2 to the parts supply position 111A, and the holding rod 16 advances until it comes into contact with the part 2a, and the holding rod 15 advances from the opposite side. The part 2a is held between the parts 2a and the cutters 25 and 27 advance to come into contact with the lead wire and the holding tape, and the cutters 24 and 26 advance to separate the part 2a from the holding tape and at the same time cut the ends of the tape. The cutters 24 to 27 return to their original positions, and the head 43 of the lead wire expansion device moves up to eject the part 2a.
The finger 3 of the automatic component insertion device moves to the component supply position ffflA and grips the component 2a at the lead wire portion, and the holding rods 15 and 16 return to release the component 2a. is delivered to the automatic component insertion device.By repeating this operation, the chip-pinned radial components are accurately supplied one by one to the automatic component insertion device.

- As described in detail, the automatic circuit component feeding device of the present invention holds the components in place during each process necessary for feeding taped radial components one by one to the automatic component insertion device. Therefore, it is possible to completely prevent the positional shift that occurs during the transfer of parts in conventional equipment, and it is possible to accurately supply parts, and there is no need to provide a transfer device for parts. No mechanism is required for driving and positioning control of this parts transfer device.
The device can have a simple and compact structure, and an automatic parts supply device that operates accurately can be provided at a low cost.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a perspective view with the cutter drive mechanism omitted, Fig. 2 is an enlarged perspective view of the head of the lead wire expansion device, and Fig. 3 is a cutter drive mechanism. FIGS. 4 to 6 are perspective views showing the drive mechanism, FIGS. 4 to 6 are views sequentially showing the expansion operation of the lead wire, and FIG. 7 is a view showing the state of the component gripped by the fingers of the automatic component insertion device t1. In the diagram, A is to parts supply position 1, 1 is tape, 2 is parts, 3
is the fin force of the automatic parts insertion device, 4 is the feeding device, 6 is the pin belt, 9 is the electric motor, 11.12 is the sensor, 15.1
6 is a holding rod, 18.19 is a slide plate, 20 is a cylinder, 21 is its operating rod, 24 to 27 are cutters, 29.30 is a cutter holder, 32.・33 is the slide table, 34 degrees, 35 is the bracket, 37 is the cylinder, 38 is its operating rod, 42 is the beam expansion device, 43 is its head, and 44 is the cylinder Agent and Patent Attorney Takao Nishi Figure 1, Figure 3 Figure 4 Figure 5 Figure 6 Figure 7

Claims (1)

[Claims] (1) An automatic feeding device that feeds taped radial components one by one to an automatic component insertion device into a printed board, which drives the tape and inserts the components held on the tape one by one into a predetermined component. It has a feeding device that feeds the parts intermittently to the feeding position, and a holding device that holds the parts fed to the feeding position in a fixed position, and a holding device that is arranged below the position and after the holding device is activated, the parts lead wire and its A cutter that moves forward and backward toward the holding tape to separate the component held at the position from the tape, and a tapered surface that moves forward and backward from below the position after the cutter is activated to widen the gap between the lead wires of the held component. It consists of a lead wire extension device with a 1lt
(1) The holding device includes a sensor that detects when the component automatic insertion (2) feed device enters a predetermined component supply position;
It has a reversible drive motor that can freely control the rotation angle, and after the sensor detects the part, it feeds out a predetermined flat tape and supplies it to the rear part of the cutter as set forth in claim 1 when it is activated. 2. The automatic feeding device according to claim 1, wherein the tape is fed back to a position before the component passes through the sensor.