JPS59228798A - Electronic part supplying device - 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 a device for mounting microelectronic components onto electronic circuit boards, etc., and is a device for mounting microelectronic components etc. onto electronic circuit boards, etc. This invention relates to an electronic component supply device that enables continuous and stable supply to a mounting head.

Conventional configurations and their problems Conventionally, leadless type microelectronic components, such as chip resistors and chip multilayer capacitors, have been supplied to the mounting and mounting devices on electronic circuit boards. As shown in Fig. 1, the method for mounting is to use the supply lever 2 provided on the 7-door 1 to feed the tape 5 meshed with the ratchet ratchet wheel 4 of the parts cassette 3 one pitch, and to place it onto the electronic component in a predetermined position. The mounting head 1 descends to hold the electronic component A, and then rises. Next, the mounting head 1 moves to a predetermined position on the electronic circuit board B and mounts the electronic component A thereon.

However, with this configuration, there are problems in that the mounting tact for the electronic components is long, and the electronic components may roll over or turn over in the recessed portion of the tape due to a shock of the supply lever.

OBJECTS OF THE INVENTION The present invention eliminates the above-mentioned conventional drawbacks, and enables continuous and stable supply of taped microelectronic components, thereby shortening the mounting takt time.

Structure of the Invention The present invention provides a parts cassette for intermittently feeding taped microelectronic parts at a predetermined pitch, a driving means for driving the intermittent feeding of the parts cassette, and a smooth operation of the driving means without impact. Because it is composed of a rotating cam, it is possible to stably supply even minute electronic components, and while the electronic components are being mounted on the electronic circuit board, it is possible to intermittent feed the parts tray and prepare the next electronic component. Therefore, it is an extremely advantageous device that can shorten the mounting tact time.

DESCRIPTION OF THE EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 2 to 6. Reference numeral 6 designates a belt-shaped tape for storing electronic components, and this tape 6 has pockets 8.6 for storing electronic components 7. and mechanically feedable punch holes 9 are provided at equal pitches. In order to prevent the electronic component 7 from falling off, another covering tape 1o is attached to the surface of the tape 6 so as to be slightly bent.

11 is a parts cassette, which includes a body 12, a lever 13 for intermittently feeding the tape 6 at a predetermined pitch, and a feeding claw 14.
．． It consists of a ratchet ratchet wheel 15, etc., and a covering tape 1.
It consists of a take-up reel 16, a rotating shaft 17 that applies winding rotational force to the reel 16, a gear 18 that transmits the rotational force, a belt 19, etc.

Next, the operation of the lever 13 of the parts cassette 11 will be described.

The feed lever 20 is slidably guided by a guide 21 and connected to an air cylinder 22, and the other end is connected to the lever 1.
3 are linked together, and the same number of parts cassettes 11 are arranged. The swing lever 23 is in close contact with the feed lever 20, and swings along the cam surface by the rotation of the rotary cam 25 via the drive lever 24, thereby smoothly moving the air cylinder 22 up and down. Therefore, the electronic parts housed in the tape 6 are placed in the lathe 1 with the covering tape 10 removed. It has a structure that prevents reversal and overturning even if it is fed a predetermined pitch by the ratchet wheel 15. 26 is a swing shaft, and the drive lever 24 and the same number of swing levers 23 as the center pins 11 are attached. Attachment: 27 is a motor connected to a drive shaft 28, on which a rotating cam 26, a rotation detection disc 29, and a pulley 30 are attached. Oh no, motor 27 is pulley 30. Belt 19. Rotating shaft 1 via gear 18
7 and reel 16 are rotated to wind up the covering tape 1o. Note that the feed lever 20 is in a non-operating position, and the lever 16 is slipping between it and the rotating shaft 17.

A switch 31 detects one rotation of the motor 27 and controls the intermittent rotation of the motor 27 by /lIj.

32 is a vacuum rod that sucks and holds the electronic component 7 from the pocket 8 of the tape 6 fed at a predetermined pitch with the parts cassette 11, moves it to a fixed position, and mounts it on the circuit board 33. The vacuum rod 32 is mounted on an XY table 36 which can be moved up and down by an up and down cylinder 34 and whose position can be set arbitrarily.

Next, the operation of the above configuration will be explained in order. When the circuit board 33 is set in a predetermined position, the vacuum rod 32 mounted on the XY table 36 is placed in the pocket 8 of the tape 6 set in the desired parts cassette 11, and the electronic component 7 in the predetermined position is moved. Move directly above.

Next, the upper and lower cylinders 34 operate, and the vacuum rod 32 descends to position 1, just above the top of the electronic component 7. After sucking and holding the electronic component 7 with vacuum force, the vacuum rod 32 rises and returns to the upper limit.

Next, with the electronic component 7 sucked and held, the vacuum port/throat 32
is moved to a predetermined position on the circuit board 33 by the XY table 36, and then the electronic component 7 is mounted on the circuit board 33. Also, the operation of feeding a new electronic component 7' to a predetermined position at the same time as the vacuum port 7D 32 starts moving onto the circuit board 33 will be described.

At the same time that the air cylinder 22 in the position of the tape 6 that previously housed the electronic component 7 suctioned and held by the vacuum rod 32 operates, the motor 27 also starts rotating. Therefore, the feed lever 20 is the swing lever 23. The rotary cam 25 begins to smoothly descend along the cam surface via the drive lever 24, and the lever 13 of the parts cassette 11 is pushed down to move the tape 6 engaged with the ratchet wheel 15 at a predetermined pitch. Send.

As the motor 27 continues to rotate, 1. Via the drive L/bar 24 and the swing lever 23, the feed lever 20 overcomes the force of the air cylinder 22 and is pushed up and returned to the upper limit. When the motor 27 rotates once, the disk 29 activates the switch 31, and the motor 27,
And the operation of the air cylinder 22 is stopped. Also, while the motor 27 rotates once, the pulley 30.
Bell l-19.

The rotating shaft 17 is rotated via the gear 18, the covering tape 1o of the tape 6 is wound onto the reel 16, and a new electronic component 7' is prepared at a predetermined position in the parts cassette 11.

By repeating the above cycle, desired electronic components can be sequentially mounted on the circuit board.

Effects of the Invention As is clear from the above description of the embodiments, the present invention provides a plurality of parts cassettes in which a tape having a large number of equally spaced recesses for storing electronic parts is fed intermittently at a predetermined pitch, and a parts cassette. It is equipped with the same number of drive means as the parts cassettes that drive the intermittent feeder, and also consists of a rotating cam that allows the drive means to operate smoothly without impact, so even minute electronic parts can be moved without turning over or rolling over. This is an extremely advantageous device that can provide stable supply and prepare the next electronic component while the electronic component is being mounted on the circuit board, thereby shortening the mounting takt time.

[Brief explanation of drawings]

Fig. 1 is a side view of a conventional supply device, Fig. 2 is a side view of a bartka cent, Fig. 3 is a plan view of the tape, Fig. 4 is a sectional view thereof, and Fig. 5 is an electronic device in an embodiment of the present invention. A sectional view of the parts supply device, FIG. 6 is a partially sectional front view of FIG. 5. 6...Tape, 11...Parts cassette, 2
Q...Feet lever, 22...Air cylinder, 23...Rocking lever, 26...
...Rotating cam. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 3
Figure 6 Figure 4/θ Figure 6 6

Claims (1)

[Claims] a plurality of parts cassettes that intermittently feed tapes each having a number of equally spaced recesses for storing electronic components at a predetermined pitch;
It is equipped with the same number of driving means as the parts cassettes that drive the intermittent feeding of the parts cassettes, and an electronic system consisting of a rotating cam that allows the driving means to operate smoothly without impact when a desired tape is fed in a fixed pinch. Parts feeding device.