JPS5987824A - Thin plate conveyer - Google Patents

Abstract

PURPOSE:To have a quick response according to the variation of the conveying distance and conveying position due to the difference of the kinds of products by a method wherein an angle against a shifting direction of a shifting rod is given to a guide block guiding a roller and a position of a rotary shaft can be slid optionally. CONSTITUTION:A driving shaft 5 is rotated by a motor 6 and a plate 38 is moved vertically by a cam 10 and a sliding bar 31 is vibrated horizontally by a cam 9. This movement is transferred to a shifting pin 41 through a shifting rod 25 and the shifting pin 41 also moves vertically and horizontally. The shifting pin 41 drops to the YO direction by the cam 10 and comes into a hole 44 of a thin plate 43. The shifting pin 41 moves to the XO direction by the cam 9 and the thin plate 43 is shifted to the XO direction for one pitch. Then the shifting pin 41 rises to the Y1 direction by the cam 10 and the shifting pin 41 comes out of the hole 44 of the thin plate 43. Then the shifting pin 41 moves to the X1 direction by the cam 9 and returns to the original position and one cycle of the shifting of the thin plate 43 is finished. Shifting distance of the thin plate 43 can be adjusted by the anble of the guide block 19 and the horizontal position of the rotary shaft 21.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to, for example, a die bonder for semiconductor assembly equipment, a metal comb for wire Honda, or a conveying device for thin plates such as ceramic substrates.

Structure of a conventional example and its problems In a conventional thin plate conveying device, as shown in a specific example in FIG. 1, a cam 1 rotates and a cam lever 2 swings. The swinging amount A is transmitted to the slide bar 4 via the rod 3 and performs a reciprocating motion of the magnitude A, which becomes the pitch feed amount of the feed rod. To change the feed pitch A of the thin plate, change the position of the nodal hole 6a of the cam lever 2, and to change the feed start position B and the feed end position C, change the position of the nodal hole 5b of the rod 3. However, in order to accommodate the conveyance of a variety of metal combs, it is necessary to be able to change the feed pitch amount continuously, easily, and reliably, which is not possible with the conventional method described above.

OBJECTS OF THE INVENTION The present invention eliminates the drawbacks of the above-mentioned conventional examples, and is a method of changing the feed pitch continuously, quickly and reliably.

Structure of the Invention The present invention is a conveyance device that uses the reciprocating motion of a feed rod to intermittently feed a thin plate, and has a lever that moves back and forth a certain distance in the feed direction of the feed rod, and one end of which is freely rotatable at the tip of the lever. A rod that is connected and has a bendable bearing part in the center, a roller provided on the bearing part, and a guide that guides the roller in the sliding direction, and is mounted on the opposite side of the guide at right angles to the guide. a guide block equipped with a rotary shaft, a support block having a fastening portion that can freely rotate and fix the rotary shaft, and a lever that connects the other end of the rod and one end of the feed rod and causes the feed rod to reciprocate. The reciprocating distance of the feed rod can be arbitrarily and continuously changed, making it possible to respond to diversification of the feed amount of the thin plate.

DESCRIPTION OF THE EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 2 and 3. 5 is a drive shaft, and this drive shaft 6 is rotated by the rotational force of the motor 6 being transmitted through a pulley 7 and a belt 8. A cam 9 and a cam 10 are attached to the drive shaft 6. The lever 11 reciprocates along the curved surface of the cam 9 about a fulcrum 14 by a cam follower 12 and a spring 13. The other end of the lever 11 is connected to one end of the mouth/throat 16 by a pin 16. The mouth/throat 16 is a bearing part 17 located at the center of the rod 15.
It can be bent freely around the center. A roller 18 is provided at one end of the bearing portion 17. Roller 18I'i.

It is slidable along the guide groove 20 of the guide block 19. The guide block 19 will be explained in detail with reference to FIG. 3. A rotating shaft 21 is attached to the guide block 19 and is slidably fitted into a hole in a fastening portion 22. As shown in FIG. Rotating axis 2
The guide block 19 can be freely rotated by turning a nozzle 23 attached to the other end of the guide block 19. In addition, by tightening the bolt 24 of the fastening portion 22, the rotating shaft 21
is fixed, and the position of the guide block 19 is fixed. The fastening part 22 is movable along a guide part 27 on a sliding guide 26 provided parallel to the reciprocating direction of the feed rod 26. By turning the handle 28, the threaded portion 29 rotates and moves the fastening portion 22 in the X direction. The position is fixed with bolts 30.

The other end of the rod 16 is rotatably connected to the slide par 31. The slide nog 31 is supported by a slide bearing 32, and transfers the reciprocating movement of the lever 11 to the rod 25.
Tell the move. The other end of slide no <-31 is roller 3
3 to the slide block 34. The two parallel slide shafts 36 are supported by a set of bearings 36 and are slidable in the X direction. One end of the slide shaft 36 is attached to the slide block 34, and the other end is attached to the slide block 37. The bearing 36 is fastened to a plate 38, and two slide shafts 39 are provided in parallel below the bearing 36. A cam follower 40 attached to the plate 38 moves up and down in the Y direction along the cam surface of the cam 10. A feed rod 26 is fastened to the slide blocks 34 and 37.

A plurality of arms 42 with feeding pins 41 are attached to the feeding rod 26. The thin plates 43 are sequentially conveyed horizontally by the vertical and horizontal reciprocating movements of the feeding rod 26.

In the device configured as described above, the drive shaft 6 is rotated by the motor 6. The cam 10 moves the plate 38 in the vertical direction. Further, the cam 9 causes the slide par 31 to swing in the horizontal direction. The above movement is based on the diameter of the feed rod 26t and the feed pin 41.
The feed pin 41 also moves vertically and horizontally. The feed pin 41 is moved to Y by the cam 1o. It descends in the direction and enters the hole 44 in the thin plate 43. The feed pin 41 is moved to X by the cam 9.
.

The thin plate 43 moves in the direction of X. pitch is sent in the direction. Next, the feed pin 41 is raised in the Y1 direction by the cam 10, and the feed pin 41 comes out of the hole 44 of the thin plate 43. Further, the feed pin 41 is moved in the X1 direction by the cam 9, returning to its original state, and one cycle of conveyance of the thin plate 43 is completed.

The feed stalk of the thin plate 43 is determined by the displacement of the cam 9 and the lever 11.
The distance from the fulcrum 14 to the cam follower 12 and the fulcrum 14
The feed amount of the thin plate 43 is determined by the ratio of the distance from the guide block 19 to the pin 16, and is adjusted by adjusting the angle of the guide block 19 and the horizontal position of the rotating shaft 21.

The adjustment method will be explained with reference to FIGS. 4 to 6.

In Fig. 4 (a) and (b), the guide block 19 is connected to the lever 1.
This is a case where the direction of the reciprocating movement of the slider 31 and the moving direction of the slider 31 are on a straight line and parallel to each other. At this time, the amount of movement of the lever 11 is S. is the same as the operation MS1o of the slide par 31. That is, the conveyance amount of the thin plate 43 is S.

become. In Figure 5, the guide block 19 is sliding par 3.
The guide block 1 is set at an angle of θ with the moving straight line of 1.
When the position of the rotating shaft 21 of the lever 11 is set to be the same as the position of the roller 18 at the center of the rod 16 by carefully sliding the fastening part 22, the lever 11 It is a figure when it moves So. rod 1
Since the guide block 19 was rotated by θ with the length U of 6,
When the bending angle of the rod 16 is α, the slide par 3
The amount of movement for 1 is.

511=So-2I1. As the value of (1-CO3α)0 increases, the value of a also increases.

sll is S. becomes progressively smaller.

In FIG. 6, the lever 11 is in the S position, contrary to FIG.

When the position of the fastening part 22 is set so that the position of the roller 18 at the center of the rod 15 is the same as the center position of the rotating shaft 21 of the guide prong 190 when the lever 11 is at the 00 position. It is a diagram. At this time, the operating amount 812 of the slide lever 31 is 512=So+22(1-cosa), and S12 is S. becomes a larger value.

FIG. 7 is a diagram showing the case where the center of the guide block 190 rotation axis 21 is set in the middle of the movement of the roller 18 located at the center of the rod 15. When the L/bar 11 is at the 0 position, the bending angle β of the rod 15 causes the lever 11 to move to S.

When the bending angle of the rod 15 is α when it moves, the operating amount S13 of the slide lever 31 is 513==So+21! , (cosa + cosβ)
becomes. When a= , S13 is S. However, the feed start position is closer to the lever 11.

As described above, by changing the rotation angle θ of the guide block 14 and sliding the position of the fastening portion 22, the feed amount, the feed start position, and the feed end position can be easily changed.

In addition, in FIG. 8, the bearing 4 is used instead of the roller 18.
5. A rail portion 46 is provided to enable sliding.

Effects of the Invention As described above, the thin plate conveying device according to the present invention is provided with a rotatable bearing portion and a roller in the middle of the rod that transmits the reciprocating motion of the lever to the feed rod, and the moving direction of the roller is set in the direction of the feed of the feed rod. In order to determine the direction and angle, the guide block that guides the roller is structured to have an angle with the feed direction of the feed rod, and by sliding the rotation axis of the guide block arbitrarily, the amount of feed of the thin plate and the start of feed can be adjusted. The position of the machine and the end position of the feed can be changed continuously as desired, and it is possible to quickly respond to changes in the feed amount and feed position due to differences in product types.

[Brief explanation of drawings]

FIG. 1 is a front view showing a device for changing the feed amount of a conventional conveying device, FIG. 2 is a perspective view of the device in an embodiment of the present invention, and FIG. 3 is a perspective view of a guide block and a fastening section.
Figures 4 to 7 show feed amount 11...L//Z-
115...Dan Rono)", 18. Old... Laura, 19.
...Guide block, 22...River/fastening section, 31
...Slide par. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 3
Figure 4

Claims (2)

[Claims] (1) A rod capable of swinging about one point as a fulcrum, a rod having one end rotatably connected to the lever and having a bendable bearing part approximately in the center, and a roller part provided on the bearing part. , a guide pro-nk having a guide for slidably guiding the roller portion; a slide bar rotatably connected to the other end of the rod and slidably guided in the feeding direction of the feed rod; A thin plate conveying device comprising a member that supports the sliding movement of this slide bar. (2) The lower part 2 is composed of a bearing and a block having the bearing, and the lower part is provided so as to be slidable in one direction by the guide. Thin plate, '%i feeding device.