JPS6019000A - Electronic part magazine filling unit control system - 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 FA1 Technical Field of the Invention The present invention is a method for automatically inserting necessary electronic components into predetermined positions on a printed board for manufacturing printed board pancakes that are widely used in the configuration of various electronic devices. This invention relates to a control system for the sump of an electronic component magazine stuffing machine for a so-called sequence taping machine, which is an automatic electronic component insertion machine used in the process of inserting electronic components.

(b) Background of the technology Many so-called printed circuit board pancakes equipped with various electronic components are used in the configuration of various electronic devices, but with the progress of miniaturization of electronic components, large scale As the use of shaped printed circuit boards and therefore the mounting density of electronic components on printed circuit boards increases, the absolute number of electronic components also increases significantly, and automatic electronic component insertion machines are used to reduce assembly man-hours.

FIG. 1 is a block diagram showing an outline of the automatic process for manufacturing the printed board package PP, and shows various electronic components P1, P2, and the like required for the printed board package PP. ...There are different types of PN, and some of the same type have different ratings, but all have lead wires in the axial direction from both sides.
Those with approximately the same shape are selected and used.

From this group of electronic components, electronic component supply tape ps is arranged in an arrangement according to the electronic component insertion order required by the automatic insertion machine AIM, and fixed with adhesive tape on both sides.
Sequence taping machine ST to make r
M is used. This is done according to instructions from the computer CP, which controls the automatic insertion machine AIM with a program for the parts insertion order necessary to manufacture the package PP.

Electronic parts PI, P2゜・ supplied to this machine STM
・For mass-produced printed board packages (PP), PN is commercially available in which many pieces of the same type and rating are taped together; Therefore, it is uneconomical to use the individual parts separately in a slender magazine (also called a cassette) MG, a part of which is shown in a perspective view in Figure 2, in the same direction. 2-300 (11
A method is adopted in which approximately 11 parts are accommodated and supplied to the sequence taping machine STM as a structure similar to that of taped parts.

This magazine MG consists of an elongated frame 1 made of aluminum material and having a U-shaped cross section, and a flat plate 2 made of transparent acrylic resin.
In order to stack electronic components 5 (resistors, capacitors, diodes, etc.) in an orderly manner, each having a lead wire 3.4 in the axial direction at the joint portion of the two, a gap 6 having a shape similar to, but slightly larger than, the shape of the component is formed. There is.

By using this magazine MG, the retaping work of supplied parts in the machine STM has the advantage that it is not necessary to cut the left and right taped parts of the parts, compared to the case of using taped parts suitable for mass production as described above. We are prepared.

(C1 Problem with the prior art) In order to orderly stack individual disparate parts in the magazine MG, by using a parts feeder and a zigzag chute, which have been widely used in the past, it is possible to You can drop it with the correct posture.

However, at this time, it is a necessary condition for the electronic component 5 to be inserted into the gap 6 by falling into the gap 6, that the wires 3 and 4 are approximately correctly aligned in the axial direction, but this condition is not necessarily satisfied. There are also cases where the shape of the Riet line is deformed, and it is necessary to correct the deformation because it interferes with the normal insertion operation.

Also, even if the above conditions are met and the product is inserted normally,
The length of the magazine is 6 ~
Since the length is 70 cm, it is difficult to maintain a correct horizontal position while falling through the gap until the magazine is filled with the parts, especially at the beginning because the falling distance is long. The collapse was so severe that it stopped at an oblique position, sometimes in a vertical position, and when supplying parts to the sequence taping machine STM in the next process, one part
This makes it impossible to carry out the function of smoothly supplying individual items.

fd1 Object of the Invention The present invention eliminates the above-mentioned drawbacks of the conventional technology and provides a novel magazine filling machine of this type that allows electronic components that are dropped and inserted to be continuously and smoothly stored in the magazine. Its purpose is to provide a control method.

te1 Structure of the Invention The above object is to prevent electronic components dropped and inserted into a magazine from
This is achieved by the method of the present invention in which a plurality of parts are controlled to fall over short distances step by step until the parts are completely stacked in the magazine.

Since a plurality of electronic components to be inserted fall step by step over a short distance, the horizontal posture of the components does not change significantly during the fall, and the correct horizontal posture is restored once the electronic components come to rest.

In this way, it is possible to maintain the correct horizontal position within the magazine until the magazine is filled.

As a specific means of the control method according to the present invention, an optical sensor is provided close to the component insertion opening of the magazine to detect the presence or absence of a component at the top of the magazine. It is relatively simple and advantageous to provide means for stopping the parts at fixed short distance intervals, and to sequentially release the stopping means using the output of the optical sensor.As the stopping means, a plunger is provided on the board to which the magazine is attached. If solenoids are arranged at regular intervals, the tip of the plunger protrudes from a control hole provided on the back of the magazine, and the output of the optical sensor causes the plungers to be suctioned from above in order to release the stoppage of parts from falling. good.

(f) Embodiments of the Invention The gist of the present invention will be specifically explained below with reference to embodiments shown in the drawings. The same reference numerals indicate the same objects throughout the figures.

Figure 3 shows the main parts of the electronic component magazine packing machine in a side view.
FIG. 4 is an enlarged view of the lead wire correction means, FIG. 5 is a partially sectional side view of a magazine advantageous for use in the present invention, and FIG. In the same figure (bl shows the output waveform of each part of the control circuit.

In Fig. 4, 9.9'12.12' is a rotating disk, 10 is a fall prevention plate, 11 is a parts delivery plate, 13.13', 14
．． 14' is a rubber roller, 15.15°sN'', 16.
16" is a lead wire correction fixing plate, and Gl and G2 are center guide plates. As is clear from FIG.
° are fixed to the rotation axis AXI at predetermined intervals, and the rotation disk 12.12' is similarly fixed to the rotation axis AX2. The interval between the rotations tt12 and 12' is larger than the interval between the rotating discs 9 and 9', and as shown in FIG.
, 9' are arranged so that the grooves overlap between the rotation circles Fj, 12, 12°. In addition, a fall prevention plate lO is provided between the rotating discs 9 and 9° so as to overlap the groove from above.
Further, a component delivery plate 11 is provided so as to intersect the grooves of both rotary plates. Between the rotating disks 12 and 12'', there are two
A set of central guide plates Gl, G2 is provided. The center guide 4fiG2 is a surface S that moves the component toward the outside of the groove.
L, and the center guide fiG2 has a surface S2 of the same curvature as the disk.

Furthermore, as shown in FIG. 4 fcl, the distance between the center guide plates G1 becomes narrower as it goes upward, and the center guide plate G2
The distance between them becomes narrower as you move downward. Then, the distance between both ends is 1. A2 is approximately equal to the width of the component body, and the center of both guide plates coincides with the center of the interval between both rotating disks. At a position corresponding to the top of the rotating disk 12.12', a pair of lead wire correction fixing plates 15.15' and 16°16' are provided so as to sandwich the disk 12.12'. °Rubber rollers 13.13° facing each other
, 14.14' are provided.

Electronic components 5 equipped with lead wires 3 and 4 in the axial direction are supplied from a parts feeder 7 to a zigzag chute 8.
The lead wires 3.4 on both sides are suspended in equally divided grooves around the first rotating disk 9, which is composed of a pair of disks, and passed through the fall prevention plate 10.
The parts receiver is connected by a connecting plate 11 to a second equally divided grooved disc 12.1, which similarly consists of a pair of left and right discs, as shown in Figure 4 (al).
2', and after the position of the part main body is shifted to the center by the part center guide plate G, a series of rubber rollers 13 are disposed with support from respective disks 12 provided at the top, and a series of rubber rollers 13 are placed opposite thereto. Lead wire correction fixing plate 14 provided at the position
The left and right lead wires 3 and 4 are crimped and conveyed between the lead wires 3 and 4, respectively, to correct the lead wire shape into a straight line, and are dropped substantially horizontally into the gap 6 of the magazine MG.

The magazine MG has control holes 17, 17', 17'', .
A plurality of boards are provided, and the board 1 is mounted diagonally.
The tips of the plungers PLI, PL2, . . . of solenoids 5OLI, 5QL2, . The part 5 which is projected and inserted by falling is first stopped by the first plunger PLI.

When the gap from the insertion port to the plunger PLI is filled with the part 5, the optical sensor 19 operates and the plunger P
The LI solenoid 5OLI operates and sucks it, causing the previous parts row to fall to the plunger PL2 and stop.

When the gap 6 up to the insertion port is filled with the stack of parts 5 that are further dropped and inserted, the optical sensor 19 operates again to suck the plunger PL2, and the next plunger PL3 is activated.
Drop and stop the parts row until the end.

In this way, a certain number of parts rows fall step by step between the plungers over a short distance, so that they are ejected from the lower part of the magazine MG while maintaining a substantially correct horizontal posture.

Figure 6 shows a block diagram [a] of the control method for controlling the fall of electronic components inserted into the back of the magazine as described above, and the output waveforms (indicated by bl) of each part in the block diagram. , the electronic components falling in front of the optical sensor 19 are sequentially stacked on the first plunger PL1, and the optical sensor 19 is as shown in FIG.
If a short pulse train is output as shown in , and the parts are stacked up to the control hole I7 in front of the optical sensor, a wide steady state output will be obtained.

The narrow pulse output is removed from this output by the integrator circuit 20, and it becomes the output shown by (2) in No. 61ffl (bl). This output is sent to the monostable multi-pie break circuit 2I as shown in It becomes the output of the Hals train shown in 3), is manually inputted to the decoder circuit 23 via the counter circuit 22, and is sent to photocouplers PCI, PC2, ... PCN, transistors TRI, TR2, etc. for separating the logic system and solenoid system. After TI?N, solenoid 5OLI.

Used to drive 5OL2...5OLN.

When the stacking up to the first insertion port is completed, solenoid 5OLI
operates to drop the stacked parts to plunger PL2, and when the stack reaches the insertion port for the second time, solenoid 5O
L2 operates to stop the laminated component falling to the position of plunger PL3, thus sequentially transferring the operation to the lower solenoids.

(g1) As described in the detailed description of the invention, the control of the electronic component magazine packing machine according to the present invention shows a significant industrial effect in that the conventional interference caused by attitude changes in the magazine is also eliminated.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing an overview of an automatic process for producing a printed board package, Fig. 2 is a perspective view showing an example of a magazine used, and Fig. 3 shows a main part of an embodiment of the present invention. 4 is an enlarged view of the lead wire correction means, FIG. 5 is a partial side view of an example of a magazine advantageous for use in the method of the present invention, and FIG. 6 is a side view showing the control method. 1
An example is shown in the block diagram fa). In the figure, MG is a magazine, a circle, P2. ...PN and 5 are electronic components equipped with lead wires 3.4 in the axial direction, 6
is the gap in the magazine, 9 and 12 are equally divided groove disks, 13 is a rubber roller, 17.17', 17''... are control holes on the back of the magazine, 19 is an optical sensor, 2o is an integral circuit, and 21 is a monostable Multi pie break, 22 is counter circuit, 2
3 is a decoder circuit, SQL'l, 5OL2.・-・5
OLN is a solenoid, PLI, PL2. ...PLN
is plunger peak l closing 2' observation J Figure 7 vine 4 mouth (a) /4' mei 4 u (b) 4th M (C) (θ〈) ¥-5 flash (3n (4)゛Tower C Drunken Patent Office Director '1, 1, Indication of the case, Patent Application No. 127332 of 1983, 3rd person heavy child component magazine talk machine control system of invention 3, Person making amendment 4, Agent Address: Yosaki, Kanagawa Prefecture Kamiodanaka 1, Nakahara-ku, City
Address 1+ 15 Δ Shitsu Co., Ltd. (6433) Mr. Otsu Patent attorney Hiroshi Matsuoka Talk Kawasaki (044) 777-1111 (Uchibo 2630) 5 Number of inventions increased by amendment None Figure column 1, Specification of the present application [Fig. 5 (month a) written in page 7, line 16 is corrected to [Fig. 3. Correct rGJ described in the 13th line of the 9th page of the same document to "GI". 4. Correct ``1 pulse'' described in the 13th line of the 11th page of the same document to ``1 pulse.'' 5. 1 output waveform described in line 18 of page 12 is corrected to ``output waveform (b month). 6. Figure 3, Figure 4 (a), (b), Figure 5, Figure 6
Correct the diagram as shown. Lead 3 Concave 7 $4 Mouth (122 1d' No. 41 (b) Iru ni' Fu May

Claims (1)

[Claims] (1) A means is provided to stop the electronic components falling within the magazine at fixed short distances over approximately the entire length of the magazine that stores the electronic components, and the means is provided close to the component insertion opening of the magazine. An electronic component magazine packing machine control system characterized in that when a sensor detects that the electronic component has been stopped for a certain period of time or more, the electronic component is sequentially released from stopping by the means (2) Controlled at regular intervals on the back of the magazine. The tip of the plunger of a solenoid provided behind each control hole protrudes into the inside of the magazine from the control hole, and the nornoid controls a ladder that sequentially releases the stoppage of the parts by the operation of the optical sensor. An electronic component magazine filling machine control system according to claim 1, characterized in that: