JPH0281812A - Putting in/out device for load - Google Patents

Abstract

PURPOSE:To correct the dispersion of the stopping accuracy of a lifting body with the lifting stroke quantity of a hook side in the bucket putting in/out device of a rotary rack, etc. by making the track of the end of a hook at the time of hooking a linear rising action. CONSTITUTION:At the time of taking out a bucket 9, as a lifting body is positioned in a certain stage of a rotary rack, a pin starts moving from the defined position on the downside linear portion of a chain 38 to the bucket 9 side. Accompanying the advance of the pin, a traveling body 26 is moved forward and the hook 30 on the end of an arm 28 installed on the traveling body 26 via a cross bar 29 is brought into contact with the front face of the bucket 9. As the pin starts to rise by means of the turning portion of the chain 38, a third link 41 linked to a second link 42 is moved upward causing the arm 28 to rise while being guided and supported by the cross bar 29. At this time, the hook 30 is hooked by a bucket handle 9a to lift up one side of the bucket 9. The bucket 9 is conveyed onto a bucket table by means of the retracting action of the pin, to finish the action of taking out the bucket 9.

Description

[Detailed Description of the Invention] Industrial Application Field] The present invention relates to a packet loading/unloading device such as a rotating rack,
In particular, in the method of loading and unloading packets by hooking them onto the packet handle, the packets can be handled with high reliability.
In fact, hooking a hook suitable for retrieval is related to the mechanism.

[Conventional technology]

Japanese Patent Application Laid-Open No. 59-36004 is a transfer machine that uses a hook on the handle of the packet to take in and out the packet.
As described in the issue (2), a pin is pulled out from the appropriate position on the side of an endless chain that is turned around two sprockets installed vertically, and the running plate with a hook is moved after feeding by using the rotational movement of this pin. The hook is hooked onto the handle of the packet by moving the hook in the opposite direction and by causing the arm to which the hook is attached to make two movements using the link mechanism by changing the height of the pin at the reversed portion of the sprocket.

[Problem to be solved by the invention]

In the above mechanism, when the hook is hooked, the locus of the tip of the hook traces a circular arc, so the relative position of the packet loading/unloading device and the packet must be positioned with extreme precision, making the control system of the elevating system expensive. There was a drawback.

An object of the present invention is to increase the accuracy of stop positioning of an elevating body by improving the trajectory of the tip of the hook to linearly rise and hook onto the handle during flick hooking.

[Means to solve the problem]

The above purpose is to enable the arm to which the hook is attached to be raised and lowered in the vertical direction by means of a crossbar, and to reverse the movement of the vertical direction of the bottle extended from the appropriate position of the endless chain to the side by means of the crossbar.
This is achieved by using a link mechanism to convert the vertical movement of the third link into a vertical movement that expands and contracts.

　　　　　　　　　,用　

The bottle, which is protruded to the side from a proper position on the endless chain, moves and rotates between the two sprockets as the chain rotates. For example, in the case of a packet extraction operation, the operation is as follows. When the elevating body is positioned at a predetermined stage of the rotary rack, the pin begins to move from a predetermined position on the lower straight portion of the chain toward the front packet side by the chain drive. As the pin moves forward, the traveling body connected to the bottle by the first link moves forward, and the hook at the tip of the arm attached to the traveling body via a crossbar comes into contact with the front surface of the packet. When the pin begins to rise at the pivoting portion, the third link, which is connected to the second link which rotates in the same way as the first link, moves upward by the rotating shaft, and the arm rises while being guided and supported by the crossbar. At this time, the hook catches on the packet handle and lifts one side of the packet. Then, the packet is transported onto the packet table of the packet take-out device by the backward movement of the bin, and the packet take-out operation is completed. The above-mentioned hooking can be effected by operation, and a slight deviation in the stopping position of the elevating object can be compensated for by the lifting operation of the hook, and the control system for the elevating object can be constructed at a low cost.

〔Example〕

Hereinafter, the present invention will be explained in detail with reference to an embodiment shown in FIGS. 1 to 8.

In FIGS. 7 and 8, a rotating rack 1 has a plurality of trays 8 connected to an endless chain 10 which is hooked around a driving sprocket 4 and a driven sprocket 5, and a plurality of trays 8 carrying packets 9 are placed on a running rail 3 on an elliptical track. The tray 8 is arranged in multiple stages in the vertical direction by the framework 2.

Two packets are placed on each tray, and are moved into and out of the warehouse by a transfer device 15 installed on the rotating portion of the driven sprocket 5. The tray 8 to be loaded and unloaded is driven by a drive motor 6
The sprocket 4 is driven by the drive chain 7 and stopped at the position of the transfer mechanism. The transfer machine 15 has a packet loading/unloading device 5 mounted on an elevating body 16 in order to extract packets from a positioned tray at an arbitrary stage. Also,
A turntable 17 is installed on the elevating body to deliver the extracted packets to a loading/unloading conveyor (not shown), so that the packet loading/unloading device [25] can be rotated approximately 90 degrees. The elevating body 16 is connected to a proper position of the endless chain 21, and is raised and lowered while being guided by the post 19 by the rotation of the elevating motor. Here, the beauty is a sprocket for guiding the endless chain 4.

Since two trays 9 are placed on one tray 8, the loading and unloading devices 25 are arranged in pairs in parallel.

The packet loading and unloading device 1125 of the present invention is a bush-pull type device that takes out packets by hooking a hook on the handle of the bucket, and pushes the front of the packet with the hook to push the packet onto the tray when storing.

This bush pull mechanism will be explained using FIGS. 1 to 6. U installed on the top surface of turntable 17
There are two sprockets 37a and 37 at the rear of the bait of the shaped frame group.
b is installed. One end of the first link is rotatably connected to a chain pin provided at an appropriate position on the side of the endless chain that is hung around this, and the other end rotates through a hole in a bracket member attached to the lower part of the traveling body. It is fixed to the shaft material. The bracket 40 is U-shaped and is fixed to the back surface of the running body.

One end of the gJ2 link 42 is fixed to the rotating shaft a so as to be parallel to the first link 4, and the first link and the second link 42 rotate in the same manner. In other words,
The first link, the rotating shaft member, and the second link 42 constitute a crank.

The lower end of the third link 41 is rotatably connected to the second link 42 with a pin 49, and the upper end is connected to the long arm 28 of the horizontal arm.
A is rotatably connected to the end of the cross spar 29a by a pin 4g. The third link 41 passes through the long groove 26a provided in the running body and the pedestal n. Long groove 26a
is provided along the direction of chain movement.

The pedestal n is for fixing the four crossbars 29a and 29b to the traveling body, and is U-shaped. cross par 2
The intersection of 9m and 29b is rotatably connected by a pin 29C. The lower end of the cross spar 29b is connected to the pin 29d on the pedestal n.
It is rotatably fixed. The lower end of the cross par 29a is the elongated hole 27 of the pedestal n! is supported by a pin 29e.

The upper end of the cross spar 29f is rotatably connected to the arm 4 by a biscuit 29f.

With this configuration, the first link l is connected to the sprocket 37.
When rotating in the vertical direction at the rotating part b, the third link 41
moves up and down, and arm Z goes up and down while being supported by crosspers 29m and 29b.

Both ends of the running body are supported by rail wings installed horizontally between the outside of the frame. Roller 3 whose running body is the top and bottom side of the rail
4. I'm stuck with QA.

The sprocket 37b is rotatably supported between the frames and by the bracket. 46 is a support shaft.

L for placing the packet 9 on both sides of the upper part between the frames
A shaped catch seat A, 35 is provided.

At the front end of the arm, there is a hook garden facing upwards.

Hook Garden can be moved forward and backward using compression springs for cushioning.

A motor (not shown) is connected to the sprocket 37a on the rear end side.

Next, the packet input/exit operation will be explained with reference to FIG.

First, the operation of taking out the packet 9 on the tray 8 will be explained. First, the turntable 17 is stopped at a predetermined height. Next, as shown by the solid line trajectory A in FIG. 5(M), the chain pin connecting the first link and the endless chain stops at a predetermined position on the lower straight part of the endless chain. Therefore, the sprocket 37a is rotated to move the chain bin toward the sprocket 37b.

As a result, the hook protrudes so as to be positioned below the handle 8a of the packet 8 placed on the tray 8. The movement of the hook while the chain pin 6 is moving in the lower linear portion is linear movement. Of course, the traveling body moves in a straight line along the rail.

When the sprocket 37g is further rotated, the chain pin 45 rotates around the sprocket 37b and rises. As a result, the first link 6 and the second link 42 rotate upward about the rotating shaft member, so that the third link 41 also rises. Therefore, the arm Z and the hook I rise, and the hook area causes the handle 9a of the packet 9 to rise. This causes the lower part of the packet 9 to rise above the stopper 8a at the front end of the tray 8.

When the sprocket 37a is further rotated, the chain pin rotor moves along the vertical straight portion toward the sprocket 37g. Therefore, the hook (9) moves in a straight line while lifting the packet 9, and pulls out the packet.

The pulled out packet 9 is placed on the tray. chain pin 4
5 reaches the rotating part of the sprocket 3a (position 1 of the solid line arrow in FIG. 5(a)), the rotation of the sprocket 37a is stopped. The trajectory of hook I is as shown by the imaginary line in FIG.

Next, the turntable 17 is rotated to remove the loading/unloading device 1f.
25 towards a dispensing conveyor (not shown).

In this state, the sprocket 37a is reversed to move the chain pin 6 along the dotted line trajectory B in FIG. 5(a). The hook I, while engaged with the handle 9a, pushes the wall of the packet 9 and pushes it out onto the delivery conveyor. When the chain pin reaches the lower straight part, the hook is removed from the handle 9a. When the chain pin 6 moves to the position indicated by the dotted arrow,
Since the hook I moves backward, the motor operation is stopped.

The case where the packet 9 on the delivery conveyor is carried into the tray 8 will be explained. First, the chain pin 45 is moved as indicated by the dotted line in FIG. 5(a) to take the packets on the delivery conveyor into the take-out/take-out device δ. Next, the chain pin 6 is moved along the broken line trajectory B to push the packet 9 into the tray 9.

As mentioned above, there is a crossbar between the traveling body and the hook force.
Since the hook I is raised and lowered by providing the hook I, the hook force moves vertically as shown in the figure. Therefore, if the protrusion of the hook force is managed, the hook force will engage the handle 9a.

In addition, as a method of pushing out the packet 9 placed on the catch plate, there is a method of moving the chain pin 1 as shown by the broken line trajectory C in FIG. 5(b). That is, after the packet 9 is placed on the catch by making a ringing motion along the trajectory A shown by the solid line, the chain pin 6 is moved along the trajectory C. The hook force is removed from the handle 9a by the chain pin 1 passing through the sprocket 37a. And chain pin 6
When the hook moves along the lower straight portion, the hook side pushes out the packet 9 along the wall surface of the packet 9 below the handle 9a. When the hook force is extended to a position where the packet 9 is placed on the delivery conveyor or tray 8, the motor is reversed to return the chain bin to the initial position of the solid line trajectory A and stop it.

In the embodiment shown in FIG. 6, the traveling bodies are provided above the packet 9. The arm Z is suspended from the running body via the cross spar 4. It is upside down compared to Figure 3. In FIG. 6, the cross spar 4 is in a retracted state (the arm Z is located at the uppermost position), so the cross spar 4 cannot be seen. The movement of the arm is reversed compared to the case in Figure 3. In other words, move forward toward the packet 9 side with the cross spar 4 extended and the arm holder lowered (corresponding to the raised state in Figure 3), then raise the arm 3 and apply the hook force to the handle 9a. It is something. This embodiment is effective when transferring tall packets.

In the above embodiment, the connection point between the crossbar 9 and the third link 41 is 29g, but it may be at another position. crossbar 9
Although it is an X-shaped single stage, it may be configured in multiple stages.

〔Effect of the invention〕

According to the present invention, the locus of the tip of the hook when hooking can be made into a linear upward movement, so slight variations in the stopping accuracy of the elevating body can be compensated for by the upward stroke amount of the hook side. , the control system for the elevating body can be constructed at low cost.

[Brief explanation of the drawing]

FIG. 1 is a schematic external view of an embodiment of the present invention, FIG. 2 is a perspective view of the drive mechanism, FIG. 3 is a side view of an embodiment of the present invention, and FIG. 4 is a perspective view of the drive mechanism. Right side view of Figure 3, Figure 5 (
a) and (b) are diagrams for explaining the operation of the chain pin during packet loading/unloading operations, FIG. 6 is a side view of another embodiment of the present invention, and FIG. 7 is a plan view of the rotary rack. 8th
This figure is a side view showing the transfer machine side of FIG. 7. Song: Running body, Public: Arm, 9...
・・Crossbar addition・・・・Hook, n・・・・・・
Sprocket, sprocket...Chain, 41...
...3rd link, 42...2nd link, Sen...
・・・・1st Link Agent Patent Attorney Masaru Ogawa 37---Conveyor Sp6 Get 15 Kuni (b) 1111

Claims (1)

[Claims] 1. A sprocket that rotates around a horizontal axis at two locations, front and rear, an endless chain hooked to these two sprockets, a running body that can move along the endless chain, and a running body that is installed horizontally on the running body, A rotating shaft installed at the same height as the sprocket axis, a first link connecting the rotating shaft and the endless chain, a second link fixed to the rotating shaft, and an engaging portion protruding upward. an arm having a hook, a cross bar connecting the arm and the running body and arranged in an X shape;
A loading/unloading device for loading and unloading cargo, which connects the links of and is rotatably provided on each of the links.