JP3443851B2 - Automatic work take-out device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic work picking device ,
In particular, the present invention relates to an automatic take-out device for taking out one work from a plurality of stacked plate-like works.

[0002]

2. Description of the Related Art Conventionally, a loader and an unloader are known as devices which are provided in the middle of a manufacturing line and which can temporarily store a plurality of plate-like works and automatically take them out one by one. These devices are equipped with racks that have multiple shelves in the vertical direction, and each time a subsequent work is transported after the first work transported from the horizontal direction is stored in the top or bottom shelf of the rack. The rack can be raised or lowered one step at a time, and the work can be stored in all the shelves of the rack.

[0003]

However, in the case of this device, since the rack must be raised and lowered one by one, the accuracy of the raising and lowering mechanism is required, and the mechanism is complicated. Further, since the works are supported one by one on the rack shelves, at least a space for the thickness of the shelves and a clearance for putting in and out the works is required between the upper and lower works, and the vertical size of the rack is large. There was a drawback.

SUMMARY OF THE INVENTION An object of the present invention is to provide an automatic take-out device which can easily take out a work one by one with only one vertical drive source and which requires a small space in the vertical direction.

[0005]

In order to achieve the above object, the invention according to claim 1 is to take out plate-like works vertically stacked one by one while keeping a gap on both sides thereof. An automatic take-out device, which is arranged on both sides of the work, can swing between a first position inclining inward and a second position standing upright, and has a swinging habit in the first position direction. A pair of support levers each having a front end capable of supporting the lower surfaces of both side portions of the work at the first position, a work receiver for supporting the lower surface of the work, a drive means for vertically driving the work receiver , and a work receiver Vertical movement on both sides
It can be freely installed and is almost flush with the outer surface of the workpiece.
Attach the lever guide with the side and the lever guide upward
A spring for urging is provided, and when the work receiver is brought into contact with the lower surface of the work as the work receiver moves upward ,
The lever guide pushes up the tip of the support lever.
Swing in the direction of the 2nd position, and the tip of the support lever works.
At the same time it comes off from the bottom of the
Therefore, the lower surface of both sides of the work is brought into contact with the lower end of the support lever as the work is lowered.
Via the outer surface of the
To the lower surface of the second work from the
The second lower surface of the work is supported .

The operation of the automatic take-out device will be described. First, a plurality of workpieces are stacked, and both side portions of the lowermost workpiece are supported by the support levers. Raising the work receiving from below by a driving means, on the receiving workpiece
The surface contacts the lower surface of the lowermost workpiece, and the lever guide contacts the lower surface of the tip of the support lever. If the work tray is further raised in this state, the lever guide will
The tip of the support lever is pushed up and is released from both sides of the work. When the support lever is disengaged from both sides of the work, the lever guide abuts the lower surface of both sides of the work. When the work receiver is lowered from this state, the tip portion of the support lever is guided by both side surfaces of the lever guide and the lowermost work, and engages with the lower surfaces of both side surfaces of the second work from the bottom. When the work receiver is further lowered, the second work from the bottom is supported by the support lever, and only the work at the lowermost stage is supported by the work receiver. In this way, the works are taken out one by one.

The support lever has a behavior of swinging inward, and this behavior may be provided by a spring force that biases the support lever to swing inward, or may be provided by gravity of the support lever itself. The first position of the support lever may be a horizontal position or a position inclined obliquely upward. It is desirable to attach a rolling member such as a bearing to the tip of the support lever. The reason for this is that, in the case of the present invention , when the tip of the support lever is pushed up by the lever guide, the tip of the support lever can be smoothly disengaged from both sides of the work, and when the work receiver is lowered. This is to reduce the sliding resistance between the tip of the support lever and the side surface of the lever guide and the work.
Lever guide has elasticity upward by a spring
It is The reason is to prevent the tip of the support lever from coming off both sides of the work and then quickly contacting the lower surfaces of both sides of the work, and preventing the support lever from engaging again with both sides of the work at the lowermost stage. is there. Further, when the lever guide comes into contact with or comes close to the lower surface of the work piece, the outer surface of the lever guide and the outer surface of the work piece are almost so that the tip of the support lever can smoothly move relative to both side surfaces of the lever guide and the work piece. there was a flush-like

[0008]

1 shows an example of an automatic take-out device according to the present invention. This automatic take-out device includes a frame 1 and a frame 1
2 which is an example of a drive means which is erected in the center of the cylinder
And a pair of guide plates 3 fixed to the upper end of the frame 1.
With. In addition to the cylinder 2, for example, a motor equipped with a ball screw can be used as the driving means. The guide plates 3 are used to guide both side surfaces of the stacked works W. At the upper end of the piston rod 2a of the cylinder 2, a work receiver 4 that supports the lower surface of the work W
Are connected. An arm 4a having an L-shaped cross section is integrally fixed to both ends of the work receiver 4, and a shaft 5 is vertically slidably inserted into an end of the arm 4a. A lever guide 6 is provided at an upper end of the shaft 5. Is fixed. A spring 7 having a weak spring force is inserted through the outer circumference of each shaft 5, and a sleeve 8 is provided around the outer circumference of the spring 7.
Has been inserted. Therefore, the lever guide 6 is elastically supported by the spring 7 so that the upper surface of the lever guide 6 is substantially flush with the work receiver 4, and the lower limit position of the lever guide 6 is restricted by the sleeve 8. In addition,
The distance between both end surfaces of the left and right lever guides 6 is substantially equal to the width dimension of the work W.

As shown in FIGS. 2 and 3, the work W used in this embodiment has a plurality of recesses 1 on the upper surface of the substrate 10.
1 and the total of 4 pins 1 on the upper surface of both sides.
The two are erected. The recess 11 has an electronic component 1
3 is fitted and held, but the upper part of the electronic component 13 projects from the recess 11 in the fitted state. A hole 14 into which the tip of the pin 12 can be fitted is formed on the lower surface of the substrate 10 and directly below the pin 12.
Is provided. Therefore, when a plurality of works W are sequentially stacked in the vertical direction, the pins 12 of the lower work fit into the holes 14 of the upper work and are positioned relative to each other. Between the upper and lower workpieces W, the length of the pin 12 and the hole 1
A difference gap with the depth of 4 is formed.

A pair of guide rails 20 is fixed to the frame 1 in the front-rear direction, and a plurality of carrier bearings 21 are horizontally arranged on the inner side surface of the guide rail 20. The work W rides on the bearing 21 and is movable in the front-back direction in FIG. 1, and both side surfaces of the work W are guided by the guide rails 20. A pusher (not shown) is arranged in the direction perpendicular to the paper surface of FIG. 1, and the work W on the bearing 21 is pushed out to the next step by this pusher.

The frame 1 has a mounting block 22.
A pair of left and right support levers 23 is attached via a shaft 24 so as to be swingable in the vertical direction. The support lever 23 is biased inward by a spring 25, so that the support lever 23 moves toward the mounting block 2.
The position is regulated at the first horizontal position by hitting the stopper surface 26 formed on the second side. A bearing 27 that supports the lower surface of the work W so that it can roll is attached to the tip of the support lever 23.

Next, the operation of the automatic take-out device having the above construction will be described with reference to FIGS. FIG. 4 shows the initial position, in which a plurality of works W are supported by the support lever 23. Then, the work receiver 4 is the support lever 23.
It is located below. Now, when the cylinder 2 is driven to raise the workpiece receiver 4, the lever guide 6 first comes into contact with the bearing 27 of the support lever 23, and the lower surface of the lever guide 6 relatively lowers until it comes into contact with the sleeve 8,
The spring 7 is compressed. After that, as shown in FIG. 5, the work receiver 4 contacts the lower surface of the work W _{1 at} the lowermost stage. When the work receiver 4 is further raised, the whole work W is lifted, and as a result, the support lever 23 swings upward as shown in FIG. 6, and the bearing 27 at the tip end moves from the upper surface of the lever guide 6 to the outer surface. Come off. At the same time that the bearing 27 is disengaged from the outside of the lever guide 6, the lever guide 6 is brought into contact with the lower surface of the work W by the spring 7, and the outer surface of the lever guide 6 and the outer surface of the work W are substantially flush with each other.
When lowering the work receiving 4 from this state, the bearing 27 of the support lever 23 as shown in Figure 7 roll outer surface of the lever guide 6 and the workpiece W _1, the lowermost workpiece W ₁
And the work W _{2 which} is second from the bottom, is fitted into the gap. When the work receiver 4 is further lowered, it abuts against the stopper surface 23 and stops when the support lever 23 swings to the horizontal position as shown in FIG. 8, and the second or more work W from the lowermost stage is moved by the support lever 23. Supported. On the other hand, the work W _{1 at the} lowermost stage descends while riding on the work receiver 4, and eventually both sides of the work W ₁ are transferred to the bearings 21 for transportation as shown in FIG. Work on bearing 21 W ₁
Is pushed to the next step by a pusher (not shown).
The work receiver 4 further descends and returns to the initial position.
By repeating the above operation, the plurality of works W stacked in the vertical direction can be taken out one by one in order from the bottom side. Moreover, since the work W is not vibrated or impacted when taken out, the electronic component 13 held by the work W is
There is no concern about the position shifting or falling off.

FIG. 9 shows an example of an automatic intake device which is a reference example . Since this automatic take-in device is the same as the automatic take-out device in FIG. 1 except that the work receiver 4 does not have the lever guide 6 and its accessories, the same reference numerals as those in FIG. And the description is omitted.

Next, the operation of the automatic intake device will be described. FIG. 9 shows the initial position, in which the work W, which has been carried horizontally on the carrying bearing 21, stops immediately above the work receiver 4. Although a plurality of works W are already supported on the support lever 23, the operation is not affected even if these works W are not supported. Next, when the cylinder 2 is driven to raise the work receiver 4, the work W on the bearing 21 moves onto the work receiver 4 as shown in FIG.
When the work receiver 4 is further raised, the pin 12 of the work W ₃ supported by the work receiver 4 contacts the lower surface of the work W supported by the support lever 23 as shown in FIG. Almost at the same time, both sides of the work W ₃ hit the bearings 27 of the support lever 23 and swing the support lever 23 upward. When the work receiver 4 is further raised, as shown in FIG. 12, the bearing 27 of the support lever 23 is moved from both sides of the work W ₃ supported by the work receiver 4.
The support lever 23 swings by the spring 25 to a position where it abuts against the stopper surface 26. When the work receiver 4 is lowered from this state, the entire work is transferred onto the support lever 23 as shown in FIG. 13, and only the work receiver 4 is lowered.

It should be noted that the works W used in the automatic take-in device do not necessarily have a gap between the upper and lower works in the stacked state as in the embodiment, but when there is no gap, the support lever is used. When the bearing 27 of 23 is disengaged from between the works W (FIGS. 11 to 12), the work W on the upper side drops by one step, so that there is a risk that the work W collapses. In the case where the pin 12 has a clearance larger than the diameter of the bearing 27, there is no fear of the load collapse.

In the above embodiment, the work W has the pin 12
When the work is stacked up and down, the pin 12
Although a gap is formed according to the protruding length of the workpiece, the workpiece of the present invention is not limited to this.
As shown in FIG. 5, recesses 30 and 31 into which the tips of the support levers can fit may be formed on both sides of the works W ′ and W ″ .

[0017]

As is clear from the above description, according to the automatic take-out device of the present invention, the work receivers are only lifted up and down, and the work is taken out one by one without any other driving means. Therefore, the mechanism is extremely simple and inexpensive. Also, since each work is stacked directly,
The vertical space is very small. Further, since the work can be taken out without giving vibration or impact to the work, it is suitable as a device for taking out a jig or the like holding a large number of small electronic components.

[Brief description of drawings]

FIG. 1 is a front view of an example of an automatic take-out device according to the present invention.

FIG. 2 is a perspective view of an example of a work used in the present invention.

FIG. 3 is a partial cross-sectional view of the work shown in FIG.

FIG. 4 is an operation explanatory diagram of the first stage of the automatic take-out device shown in FIG. 1.

5 is an operation explanatory view of a second stage of the automatic take-out device shown in FIG. 1. FIG.

FIG. 6 is an operation explanatory diagram of a third stage of the automatic take-out device shown in FIG. 1.

7 is an operation explanatory view of a fourth stage of the automatic take-out device shown in FIG. 1. FIG.

FIG. 8 is an operation explanatory view of a fifth stage of the automatic take-out device shown in FIG.

FIG. 9 is a front view of an example of an automatic intake device as a reference example .

FIG. 10 is an operation explanatory diagram of the first stage of the automatic intake device shown in FIG. 9.

FIG. 11 is an operation explanatory diagram of the second stage of the automatic intake device shown in FIG. 9;

12 is an operation explanatory view of a third stage of the automatic intake device shown in FIG.

FIG. 13 is an explanatory view of the operation of the automatic intake device shown in FIG. 9 in the fourth step.

FIG. 14 is a cross-sectional view of another example of the work.

FIG. 15 is a cross-sectional view of still another example of the work.

[Explanation of symbols]

W work 2 cylinders (drive means) 4 work receiving 6 Lever guide 7 spring 23 Support lever 25 springs 26 Stopper surface 27 bearings

Claims (2)

(57) [Claims] 1. An automatic take-out device for taking out plate-like works vertically stacked one on top of the other with a gap on both sides, arranged one on each side of the work and tilted inward. Is swingable between a first position and a second position which is erected upward, and
A pair of support levers, which have the habit of swinging in the direction of position and whose front end can support the lower surfaces of both side parts of the work at the 1st position, a work receiver that supports the lower surface of the work, and a work receiver that is driven vertically It is mounted on both sides of the work support and the work support to move up and down.
Lever guide having an outer surface that is substantially flush with the outer surface of the hook
When, and a spring for urging the lever guide upward with increasing operation of the workpiece receiving, the work receiving word
Contact the bottom surface of the
Push up the tip of the bar and swing it toward the second position to support it.
At the same time that the tip of the
The bar guides are attached to the lower surface of both sides of the work by springs.
Contact is, along with the downward movement of the workpiece receiving the tip of the supporting lever
To the outside of the lever guide and the outside of the bottommost work
Guide to the lower surface of the second work from the bottom through the surface,
Automatic removal device of a work, wherein the this <br/> for supporting the lower surface of the second workpiece from the bottom support lever. 2. A work piece and a work piece are attached to the tip of the support lever.
And a bearing that can freely roll with respect to the lever guide
The work according to claim 1, wherein the work is
Automatic take-out device.