JPH0656254A - Transfer device - Google Patents

Abstract

PURPOSE:To provide a transfer device capable of holding stacked cases, shifting them in one action, and having a simple structure and improved performance by providing a moving sprocket connected to a fixed sprocket via a chain on a bolster provided at the tip of a rocking arm and holding the stacked cases. CONSTITUTION:Stacked cases 3 are shifted by a rocking arm 6. A bolster 5 provided at the tip of the rocking arm 6 is connected and supported by a moving sprocket 22, the moving sprocket 22 is connected to a fixed sprocket 23 via a chain 24, and the moving sprocket 22 is invariably kept at the constant position like the fixed sprocket 23. When the rocking arm 6 is rocked, the bolster 5 of the stacked cases can be kept at the constant horizontal state, and the stacked cases can be shifted by one rocking action of the rocking arm 6. The action of a transfer device can be accelerated. Only a mechanism driving the rocking arm 6 into a circular arc shape is required, and the structure is simplified.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to stacked cases, and a transfer device for collectively transferring stacked cases in a stacked state from above to obliquely below or from below to obliquely above.

[0002]

2. Description of the Related Art For example, in a natto manufacturing factory, natto is packed in a container, the container is stored in a case, the cases are stacked in about 10 levels, and the stacked cases are placed on a waiting cart. They are collectively transferred, and the dolly is used to carry containerized natto, which is a product, to the product delivery point.

In the case of collectively transferring the stacked cases onto the dolly, conventionally, a receiving material for holding the stacked cases and a horizontal movement of the receiving material are provided above the dolly. The transfer device was equipped with a horizontal movement mechanism for reaching the above and a vertical movement mechanism for moving from above the carriage to above the carriage.

[0004]

However, such a transfer apparatus requires shafts for horizontal transfer and descending transfer and their drive mechanisms, so that the entire apparatus becomes complicated and the manufacturing cost is low. There is a problem that it is difficult to decrease. In addition, the stacking case from the stacking position to the transport position,
Since the case is started and stopped for each operation due to the transfer through these two operations, it is difficult to speed up all the operations, and there is a disadvantage that the performance of the transfer device cannot be improved.

In view of the above, the present invention has a structure in which a stacking case is held at the tip of the swing arm and is transferred in one operation, thereby simplifying the structure and improving the performance.

[0006]

SUMMARY OF THE INVENTION A transfer device of the present invention is a transfer device for transferring stacked cases, the base end of which is pivotally supported, and an oscillating arm which is oscillated by a drive mechanism. A receiving member provided at the tip of the swing arm for holding the stacking case, a fixed sprocket coaxial with the base axis of the swing arm, and the fixed sprocket provided on the receiving member. A movable sprocket connected by a chain is provided.

[0007]

The stacked cases are transferred by the swing arm. Then, the receiving material provided at the tip of the swing arm is connected to and supported by the movable sprocket, and since this movable sprocket is connected to the fixed sprocket via the chain, the movable sprocket always rotates at a constant speed like the fixed sprocket. Since the position is maintained, the receiving material of the laminated case can be maintained in a certain horizontal state even if the swing arm swings, and the stacked cases are transferred by one operation of swinging the swing arm. it can. That is, since the transfer can be performed by only one operation, the operation of the transfer device can be speeded up. Further, the structure is simplified because only the mechanism for driving the swing arm in an arc shape is required.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on the embodiments shown in FIGS. As shown in FIGS. 1 and 2, the transfer device 1 of the present embodiment has a swing arm 6 which is turned upside down on a floor plate 2a of a frame 2 and a tip portion 6b of the swing arm 6, The receiving material 5 for holding the stacked case 3 is pivotally attached. Reference numeral 7 indicates a drive means for rotating the swing arm 6, and 8 indicates a carriage for carrying the stacked cases 3 and carrying them to another place. Further, 4 is a stacking means of the case 3 arranged below the receiving material 5,
The case 3, which is placed on the conveyor belt 10 and is delivered from the upstream side, is transferred to the lower part of the receiving material 5 by the cylinder device 11. Reference numeral 12 is a support plate fixed to the top end of the cylinder rod.

A support shaft 13 is provided on both sides of the lower portion of the receiving member 5, and a tip portion 6b of the swing arm 6 is pivotally attached to the support shaft 13. Further, inside the lower portions of both sides of the receiving member 5, claws 15 for engaging with concave portions formed on both side surfaces of the case 3 are provided so as to be retractable. That is, when the cases 3 are stacked on the receiving material 5, when the case 3 that is placed on the support plate 12 and pushed up from below by the cylinder device 11 contacts the lowermost stage of the stacked case 3, the claws 15 Is retracted to release the engagement between the lowermost case 3 and the claw 15, further pushes up all the stages of the case 3, and again the lowermost stage of the case 3 is engaged and held by the claw 15. When the receiving material 5 is located on the dolly 8, the claws 15 are pulled in to place the stacking case 3 on the dolly 8. Also,
Reference numeral 16 denotes a step collapse preventing means provided in a pair on the downstream side (on the right side in FIG. 1) of the upper end of the receiving material 5, and the stacking case 3
The pin 17 is projected inward from both sides when the sheet is transferred, and is configured to hold one end of the uppermost case 3 and prevent the upper case from collapsing.

Reference numeral 18a designates a bearing fixed to the floor material 2a of the frame 2 for supporting the base shaft 18 rotatably on the bearing 18a, and fixing the base end portion of the swing arm 6 to the base shaft 18. There is. The rocking arms 6 are provided in a pair on the base shaft 18 so as to be able to support the receiving member 5 from both sides, and the rocking arms 6 reach the dolly 8 in its entire length. Thus, when the swing arm 6 is swung to the lower limit, the drive control is performed so that the bottom portion of the receiving material 5 contacts the carriage 8.

The drive portion 7 of the swing arm 6 is provided at one outer end (right side in FIG. 2) of the swing arm 6. That is, the drive arm 1 whose base end is fixed to the base shaft 18
9 and an operating rod connected to the tip of the drive arm 19 and a cylinder 20 pivotally supported by the frame frame 2. The operating rod of the cylinder 20 expands and contracts to cause the drive arm 19 to move. Swung a predetermined angle,
The base shaft 18 is rotated to swing the swing arm 6.

When the transfer device constructed as described above swings the swing arm 6 to transfer the stacking case 3 of the receiving members 5 onto the carriage 8, the receiving members 5 are horizontally moved. You need to keep it. Therefore, while the movable sprocket 22 is fixed to the support shaft supporting the receiving member 5, a fixed sprocket 23 that does not rotate is provided coaxially with the base shaft 18, and a balance mechanism that connects the two by a chain 24 forms a swinging arm 6. It is provided in. That is, the movable sprocket 22
Even if it tries to rotate, the rotation is restricted because it is connected to the fixed sprocket 23 by the chain 24, so that the movable sprocket 22 always maintains a constant rotation position like the fixed sprocket 23. In other words, the receiving member 5 connected to the movable sprocket 22 is the swing arm 6
Even if the rocks, it can be kept horizontal.

Next, the operation of such a transfer device 1 will be described. The case 3 accommodating the container 9 and the like is individually carried to the transfer device 1 by a belt conveyor or the like. The case 3 is moved by the belt conveyor 10 of the stacking section 4 so as to be located immediately below the receiving material 5. Then, it is pushed up by the cylinder device 11 to be piled up from the bottom to the lowermost stage of the stacking case 3 of the receiving material 5 and held by the receiving material 5. Next, when this operation is repeated and the required number of stacked stages are stacked, the swing arm 6 is swing-driven, and the receiving material 5 holding the stacked cases 3 is moved by the carriage 8.
It is moved in one motion until it touches. Then, the receiving material 5 releases the holding of the cases 3, and the stacked cases 3 are moved by the carriage 8
Placed on. Finally, the swing arm 6 is swing-driven in the opposite direction, and the stacking case 3 is returned to the previous stacking position while leaving the stacking case 3 on the carriage 8, and the series of operations up to this point can be repeated. That is, it is possible to transfer one to a plurality of mountain cases onto the carriage 8. Of course, from the dolly 8 to the cylinder device 11
It can be handed over to the other party by the reverse operation. The case 3 can be loaded on the receiving material 5 by collectively carrying the piled case 3 from another place.
May be a product such as a natto container or may be an empty case. In the above embodiment, the inversion operation of the swing arm 6 is entrusted to the cylinder 20, but it may be entrusted to the motor 25 as shown in FIG. Specifically, the motor 25 drives the drive chain wheel 26 to drive the chain 2
Driven chain wheel 28 which is rotated via 7
May be fixed to the base shaft 18. Of course, the other structure is the same as that of the above embodiment.

[0014]

As described above, according to the present invention,
The stacked cases are held by a receiving material provided at the tip of the swing arm so as to be always horizontal, and by moving the swing arm, the case can be moved to an arbitrary position with only one movement. The operating speed of the mounting apparatus is improved, and the performance can be improved. Further, since only the drive mechanism for swinging the swing arm is required, the structure of the transfer device is simplified, the production is facilitated, and the economical efficiency is enhanced.

[Brief description of drawings]

FIG. 1 is a schematic side view of a transfer device according to an embodiment of the present invention.

FIG. 2 is a front view of the transfer device according to the present embodiment.

FIG. 3 is a side view of another embodiment.

[Explanation of symbols]

 1 Transfer Device 3 Case 5 Support Material 6 Swing Arm 7 Drive Unit 22 Movable Sprocket 23 Fixed Sprocket 24 Chain

Claims (1)

[Claims] 1. A transfer device for transferring stacked cases, comprising: a swing arm having a base end pivotally supported and swing-driven by a drive mechanism; and a swing arm provided at the tip of the swing arm. The receiving member 5 for holding the stacking case, the fixed sprocket 23 provided coaxially with the base axis of the swing arm 6, and the receiving member 5 provided with the fixed sprocket 23 and connected to the fixed sprocket 23 by a chain 24. A transfer device including a movable sprocket 22.