KR950009189B1 - Pallet transfer method and device for concrete block automatic molding machine - Google Patents

Abstract

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Description

Pallet transfer method and device for concrete block automatic molding machine

1 is an exemplary plan view of a pallet transport apparatus of the present invention.

2 is a side cross-sectional view of the present invention taken along line AA ′ of FIG. 1.

3 is a front sectional view of the present invention taken along line B-B 'of FIG.

4A and 4B are functional diagrams of the push arm of the present invention.

* Explanation of symbols for main parts of the drawings

1: guide rail 1a: support surface

2: reinforcing bar 4: limited rail

6: transfer frame 7A: transfer table

7B: connecting rod 8: rolling member

10: forward and backward cylinder 11: support

12: push arm 12a: weight part

12b: Hanging part P: Pallet

B: block

The present invention relates to a conveying method and apparatus for an automatic concrete block molding machine, and in particular, to allow the pallet loaded with the block to slide on a guide rail, thereby minimizing vibration and impact during conveying to a molded or cured block. Actively prevented the occurrence.

Although not shown, a general concrete block automatic molding machine is for automatically producing a large number of blocks by repeatedly performing a press molding of a suitable amount of material, curing of a molded block, and stacking alignment of the cured blocks at predetermined cycles. It is well known that a transfer device configured as a chain conveyor or a roller conveyor is installed between process positions, and the block which has been completed is periodically moved to the next process side according to the operation cycle of the process performing apparatus.

By the way, in this conveying device, as a lot of vibrations and shocks occur during the conveyance of the pallet, it provides the root cause of the defect of the product, such as block damage, crack, breakage, the advantage of the block in the state that is not cured, especially after molding Shows more significant defects.

SUMMARY OF THE INVENTION An object of the present invention is to provide a pallet conveying method capable of fundamentally eliminating vibrations and shocks of conveyed pallets, thereby minimizing block defects by quiet conveying, and a pallet conveying apparatus that effectively performs the method. .

Still another object of the present invention is to provide a pallet transfer device which can improve the ease of manufacture and maintenance and operation reliability by minimizing and simplifying the number of parts and the mechanical configuration of the block transfer device.

Hereinafter, preferred embodiments of the present invention will be described in detail by the accompanying drawings.

In the present invention, the pallet conveying method is provided with a guide rail for preventing the pallet from being separated between the process and the next process so that the supplied pallet is slidably moved on the upper surface of the guide rail by rolling back and forth of the conveying frame. The push arm, which is installed at the same time interval on the transfer frame to move, pushes the front side of the pallet by its own weight when the transfer rail is retracted, and returns to the original position along the lower surface of the pallet when the transfer frame returns. It is to be transferred step by step.

FIG. 1 is a plan view showing a plan view of the block conveying apparatus M for transferring blocks by the above method, not shown, in which the left side is the corresponding process side and the right side is the next fixed side. Depending on the distance, the length is appropriately increased or decreased.

The guide rails 1 installed between the two processes are opposed to each other in the longitudinal direction on the upper part of the strut 3 connected by the reinforcing bar 2 so as to maintain a proper height from the ground as shown in FIG. Pallet P seated on the support surface (1a) of the upper end is prevented from the outside departure by the restriction rail (4) provided on the outside of the guide rail (1), this restriction rail (4) is attached to a plurality of fasteners (5) It is fixedly installed on the outer surface of the guide rail (1).

The feed rate 6 which is rolled on the guide rail 1 is connected between the opposing feeders 7A by a plurality of connecting rods 7B, and a rolling member is provided on the bracket 7a on the outer surface of the feeders 7. (8) is fixedly installed along the guide groove (1a) of the guide rail (1) is installed so that the entire transport frame (6) cloud movement.

The forward and backward movement of the transfer frame 6 is characterized in that the strut 3 is connected between the reinforcing cylinders 2 and the fixed portions 9a and 9b provided on the connecting rod 7B of the transfer frame 6 before and after the advance / retract cylinder 10. 10a and 10b) are hinged and fixed to extend and retract the cylinder 10.

On the other hand, a push arm 12 for pushing and moving the pallet P is fixed to the support portion 13 provided at equal intervals at an inner side of the transport table 7A by the support shaft 13, and this push arm 12 is provided. ) Is composed of a weight portion 12a in front of the support shaft 13 and a relatively light locking portion 12b at the rear thereof so as to be operated in a seesaw operation. The position is adjusted to almost match the height of the pallet P.

In the figure, reference numeral B denotes a block.

In the block transfer device M of the present invention, the pallet P on which the block B is loaded slides along the support surface 1a of the guide rail 1 by a supply mechanism provided in the process performing apparatus. At the same time as the supply is completed, the forward and backward cylinder 10 starts to expand, and the transfer frame 6 which is rolled with the rolling member 8 in the guide groove 1a of the guide rail 1 according to the extension of the forward and backward cylinder 10. ) Will move backwards.

At this time, as for the push arm 12 installed in the feed table 7A of the feed frame 6, as shown in FIGS. 3 and 4 (a), the locking portion 12b is raised by the weight of the weight portion 12a. Since the reversed state, the left and right separation of the pallet (P) is prevented.

The pallet P supplied to the guide rail 1 by the above operation moves one section, where one section is appropriately set according to the size of the pallet P or by working conditions, and thus the retreat is performed. Of course, the stroke distance of the cylinder 10 and the front and rear installation intervals of the push arm 12 should also be set at the same time.

On the other hand, when the transfer frame 6 returns to its original position by the withdrawal of the advance / retract cylinder 10 at the same time as the completion of the transfer, the push arm 12 is engaged by the pallet P in front thereof. As it is pressed, the weight portion 12a is raised to return to the state where the upper surface of the locking portion 12b is in contact with the lower surface of the pallet P, as shown in FIG. 4 (b), and the locking portion 12b is in the original position. Is separated from the pallet P and waits for the next transfer in the state of being raised by the weight of the weight portion 12a.

Thus, the pallet P supplied to the guide rail 1 is conveyed to the next process position by repeating section movement by the push arm 12 of the conveyance frame 6 which moves forward and backward, In this conveyance state, the pallet P ) Is slid in a state where it is mounted on the support surface 12a of the guide rail 1, so that vibration and impact in the up and down directions are hardly generated.

Therefore, according to the present invention, vibration and shock are actively prevented during the transfer of the block, thereby obtaining a high quality standardized block (B), as well as its simple mechanical configuration, which is easy to manufacture and maintain, and improves operation reliability. This has a wide range of effects such as productivity improvement and cost reduction.

Claims (2)

A guide rail is provided between the process and the next step to prevent the pallet from being separated so that the supplied pallet slides on the upper surface of the guide rail by moving the front and rear of the transfer frame, and moves the pallet to a predetermined position. The push arm installed at equal intervals pushes the front side of the pallet by its own weight when the transfer rail is retracted, and returns to its original position along the lower surface of the pallet when the transfer frame returns, and moves the pallet step by step. Pallet transfer method of concrete block automatic molding machine. A guide rail installed between the respective treatment process apparatuses and configured to guide and support the supplied pallet to prevent separation; A conveying frame which is installed inside the guide rails and moves the rolling section back and forth by a forward and backward cylinder provided between the guide rails; A pallet transfer device of a concrete block automatic molding machine, characterized in that it is installed on the upper part of the transfer frame at equal intervals before and after, and is operated by the iso-so often by a push arm for moving the pallet step by step.