JPH0192160A - Feeding device for electronic parts - 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 Application on Tumors] The present invention relates to a supply device for chip electronic components of a chip mounter, and particularly to prevention of chip electronic components from dancing when the chip mounter is sucked.

[Conventional technology]

A tape feeder is a component feeding device for a conventional chip mounter that mounts chip electronic components onto an electronic circuit board.
As described in Tokkokusho No. 60-24100, a shutter means is provided in the parts supply section to protect fc' from both child parts! 8. As mentioned above, nothing has been done to improve the structure of the steps, etc. to reduce the vibration kWc generated during transportation.

[Problem that the invention seeks to solve]

- In the conventional technology, a sprocket rotates by vertical movement of a conveyance lever provided on a tape feeder that supplies chip electronic components to a chip mounter, and the chips are conveyed at a predetermined pitch. However, a phenomenon occurs in which the chip electronic components dance during transportation and deviate from the suction nozzle position of the chip mount. With regard to this point, the problem of incorrect adsorption of chip electronic components to the chip mounter has frequently occurred due to the lack of allocating power.

An object of the present invention is to reduce vibrations generated during transportation and to reduce the possibility of chip electronic components dancing.

[Means to solve all problems]

The above objective is achieved by reducing the collision force when the transfer lever hits the stopper that sets the stroke, in order to reduce the dancing of the chip electronic components at the suction position where the chip electronic components are fed to the chip mounter. .

[Effect]

In a tip mounter that mounts chip electronic components onto a circuit board, the tape feeder that supplies the chip electronic components is
The sprocket is rotated by the vertical movement of the conveying lever, and the sprocket is fed at a predetermined pitch.

As a method of reducing the collision force that hits the stopper that determines the stroke of the transport lever, a spring was used here as the elastic material. This reduces the phenomenon of chip electronic components dancing during transportation. As a result, when parts are supplied to the chip mounter, there are no mistakes made by the suction nozzle, and the mounting rate on the circuit board is improved.

〔Example〕

Examples of the present invention are shown in the drawings below. I will explain it with a diagram. In the figure, reference numeral 1 indicates a fixed cover on which a taped chip electronic component 9 is mounted.

2 shows the main body consisting of the whole part f6:tp4, the lever 3 is for conveying the tape 9 on which the chip electronic components are taped, and the sprockets 51 and 6 are the sprockets 5 and 6 for conveying the chip electronic components at a constant pitch. The support part 6.4 that supports and fixes the lever 3 is a sprocket 5 that moves up and down.
It shows a claw part 4 that rotates a part of the body with the tip of the claw. A reel 8 winds up the upper tape of the taped tape 9, and this reel 8 transmits power to the belt 7 and reel 8, which transmit 50 rotations of the sprocket. The tape 9 includes a tape guide 10, a tape presser plate 11 that completely prevents vertical movement during tape conveyance, and tape presser plates 2.13.
indicates a guide plate for smoothly feeding the tape. Reference numeral 14 denotes a piece of empty tape that is no longer needed after the chip electronic component has been suctioned by the suction nozzle, and although not shown here, when it reaches a certain length, it is cut off with a cutter.

Next, I will talk about how it works. The mounted tape 9 rotates at a constant pitch as the lever 3 moves up and down by the movement of a cam from the chip mounter, and the pawl 4 pushes the sprocket 5 forward.

6 is a rotation prevention support part 6 for supporting the sprocket 5 so that it does not move after rotation, and the power of the sprocket 5 is transmitted to the 7 Tupper tape take-up reel 8 by a belt 7. The conveyance direction of the tape 9 is determined by the tape 90 guide 10.
The upper tape is fed between the tape holding plate 11 and the guide plate 130, and is stripped off at the tip of the tape holding plate 11 and wound onto the reel 8. Reference numeral 15 indicates the opening position of the chip electronic component, from which the chip electronic component is sucked by the suction nozzle. Force 2 after chip electronic components are adsorbed
The 14 colored tapes are fed from the 12 tape pressing plates, and the tapes are cut off with a cutter as described above.

What poses a particular problem is that the tape 9 is conveyed by the sprocket 5 when the tape 9 is conveyed as described above. When the transport lever 3 of the tape feeder hits the upper and lower stoppers, an impact is generated, which causes the tape 9 to shake as well, causing the chip electronic components to dance. In order to reduce the size of chip electronic components,
The purpose is to reduce #4 vibration of the lever.

In order to reduce the impact of the lever 3 on the upper stopper 16 and the lower stopper 17 of the tape 9 transport lever 3, springs 1A, which are elastic bodies, are installed on the upper and lower stoppers to absorb and reduce the shock. Here, the spring lAt-
I use it, but any elastic material will do. With such a structure, it is possible to prevent the chip electronic components from moving, so that the electronic components can be reliably fed step by step to the chip mounter.

〔Effect of the invention〕

The chip mounter's mounting tact for mounting chip electronic components on circuit boards can be improved (faster) than conventional methods.

Since the impact vibration of the lever during transport of the chip electronic component can be reduced, the movement of the chip electronic component is reduced and the tip mounter can be reliably attracted, which has the effect of greatly increasing the mounting rate.

A spring that reduces the impact of the lever has the advantage of being simple in structure and inexpensive to manufacture.

[Brief explanation of the drawing]

The figure is a sectional view of a tape feeder of a component supply device showing an embodiment of the present invention. 1...Fixed cover 2...Body 3...Lever 4...Claw 5...Sprocket 6...Support part 7...Belt 8...Reel 9...Tape 10...・Tape guide 11... Tape press plate 12... Tape press plate 13... Tape guide plate 14... Color tape 15... Opening position
16... Upper stopper 17... Lower stopper.

Claims (1)

[Claims] 1. One side of the tape has holes at equal intervals,
A large number of chip electronic components are arranged and wound around a tape reel to a certain size.The chip electronic components are fed to the chip mounter by rotating a sprocket by vertical movement of a transport cam installed on the tape feeder. What is claimed is: 1. An electronic component supply device having a structure for conveying at pitches, characterized in that springs or elastic bodies are provided at setting stop portions at upper and lower positions of a conveyance lever that determines a predetermined pitch.