KR950009188B1 - Method and apparatus for transporting pallets of automatic concrete block mold - Google Patents

Abstract

The apparatus suitable for conveying the compressed-molded block in the block forming process, prevents the quality deterioration of blocks by minimizing the vibration on conveying pallets. The method is composed of mounting the lifting frame on the guide rail for guiding the pallet; mounting the movable frame supported by the lifting frame. The pallet supported by the guide rail, is lifted by the lifting frame and moved in a certain distance by the backward moving of the movable frame. The pallet is contacted with the guide rail by descending of the lifting frame and moved in the stepped distance by the returning of the movable frame.

Description

Pallet transfer method and device for concrete block automatic molding machine

1 is an exemplary plan view of a pallet transfer device of the present invention.

2 is a side cross-sectional view of the pallet transport apparatus of the present invention.

3 is a diagram showing the action taken along the line A-A 'of FIG. 2, (a) is a front sectional view of a pallet transfer standby state, and (b) is a front sectional view of a pallet rising state.

* Explanation of symbols for main parts of the drawings

1: guide rail 2: reinforcement

5: limited rail 6: lift frame

7: platform 8a, 8b: connecting table

10: support period 11: lifting cylinder

12: rolling member 13: transfer frame

14: connecting rod 15: retraction cylinder

P: Pallet

The present invention is to minimize the vibration and impact during transportation of the pallet transfer method and apparatus of the automatic block block molding machine, more specifically the pallet transporting the block to actively prevent the occurrence of product defects, in particular after curing It is to be suitable for the block transfer in the press-molded state.

Although not shown, a general concrete block automatic molding machine presses the mortar material mixed and supplied to the mold together with vibration to form a block of a predetermined shape and size, and the molded block is loaded on a pallet to a chain conveyor or roller conveyor. It is well known that the selected transfer device moves section by stage according to the working cycle of the molding machine to the curing process position.

However, this conveyor type conveying device is subjected to a lot of vibration and impact during the conveyance of the pallet, the block of the pressure-molded state that does not have the design strength is easily damaged, cracked, broken by such vibration and impact, high defects occur In addition, it causes problems such as not being able to obtain a uniform product as designed.

An object of the present invention is to actively prevent the vibration and impact of the pallet to be conveyed to minimize the failure of the block by the quiet transfer, the pallet conveying method, and to perform the conveying method effectively as well as its mechanical configuration and It is to provide a pallet transfer device that can increase overall work efficiency, yield and productivity by improving the ease of manufacture, maintenance and operation reliability by simplifying and minimizing required parts.

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

In the pallet transfer method of the present invention, that is, a lifting frame for elevating to a predetermined height is installed in a guide rail for guiding the supplied pallet. When the frame is raised, the pallet supported by the guide rail is moved up by the transfer frame, and then the section is moved by reversing the transfer frame.The pallet is brought into contact with the upper surface of the guide rail by the lowering of the transfer frame, and then the transfer frame returns to its original position. The pallet is moved step by step.

FIG. 1 shows a planar configuration example in which a certain length of the pallet transfer apparatus M for transferring a block by the above method is omitted, and FIG. 2 shows a side cross-sectional configuration.

The guide rail 1 installed between the pallet take-out position and the curing process position of the molding machine is installed in the lengthwise direction on the upper part of the strut 3 connected by the reinforcing bar 2, and the supporting surface 1a on the upper part of the guide rail 1 is provided. Pallet (P) seated on the) is prevented from the outside by the restriction rail (5) fixed to the guide rail (1) by a plurality of fixing bars (4) outside.

The lifting frame 6 installed above the reinforcing bar 2 of the guide rail 1 connects and fixes a pair of lifting platforms 7 opposed in the longitudinal direction with a plurality of upper and lower connecting bars 8a and 8b, and The support sections 10a are pivotally hinged to the supports 9a and 3a provided correspondingly to the connecting table 8a and the reinforcing table 2, and are lifted up and down to the fixtures 9b and 3b provided corresponding to the reinforcing table 2a. The cylinder 11 is hinged so as to be flowable so that the whole lifting frame 6 can be raised and lowered to a predetermined height by the support rod 10 as the lifting cylinder 11 extends and draws in.

In addition, a plurality of rolling members 12 are provided on both sides of the lifting platform 7 on the lifting platform 6 so that the feeding frame 13 is installed on the upper part thereof so that the moving frame 13 moves forward and backward, and connects the connecting frame 13. The retraction cylinder 15 is provided in the fasteners 14a and 3c of the 14 and the reinforcement table 2, and the conveyance frame 13 whole is moved to the rolling member 12 by extension | stretching and retraction of this retraction cylinder 15. As shown in FIG. Moves back and forth in the state supported by.

In the figure, the tongue surface symbol B is a block.

The pallet conveying apparatus M of the present invention having such a configuration loads the block B formed in the block molding machine (not shown) on the pallet P and supplies it to the support surface 1a of the guide rail 1. The pallet P is ready to be transported in the state where the outside of the outside is prevented by the limit rail (see also FIG. 3a).

When the lifting cylinder 11 starts to extend the conveyed pallet P, the lifting frame 6 extends to the lifting cylinder 11 installed between the upper connecting rod 8a and the reinforcing bar 2. When the support frame 10 is connected between the lower connecting table 8b and the reinforcing table 2 of the lifting frame 6, the lifting frame 6 is rotated by the rotation of the support frame 10. It is in a state of being raised and retracted by a predetermined height.

At this time, the conveying frame 13 is simultaneously raised in the state of being placed on the upper surface of the rolling member 12 of the lifting frame 6, the upper surface of the raised conveying frame 13 is a guide rail (1) than the support surface (1a) Since it rises to a high position, the pallet P seated on the support surface 1a will be in the state lifted up by the feed rate 13.

In this state, when the retracting cylinder 15 installed between the connecting table 14 of the conveying frame 13 and the reinforcing table 2 of the support 3 is extended, the conveying frame 13 is a rolling member of the lifting frame 6 ( 12) is moved to the rear to move the pallet (P), and in the state of the transfer is completed, the lifting frame (6) and the lowering of the transfer frame (13) by the introduction of the lifting cylinder 11, the forward and backward cylinder (15) ) Performs the home position forward return of the feed frame 13 by the pulling in sequence to complete one feed cycle.

Since the above operation results in a stepwise movement of the pallet P supplied to the guide rail 1 by the transfer frame 13 representing the trajectory of the front and rear rectangles, the pallet P lifts each transfer section. It is moved to the state that is applied to the block (B) to minimize the occurrence factors of vibration and shock.

Therefore, according to the present invention, vibration and shock are actively prevented during transportation of the pallet (P) loaded with the block (B), so that a standardized high-quality block (B) can be obtained, thereby greatly improving productivity and yield. Of course, there is a wide range of effects, such as the simple configuration of the mechanical structure can be easily manufactured and maintained, and the work efficiency can be increased by improving the operation reliability.

Claims (2)

A lifting frame lifting and lowering to a predetermined height is installed in a guide rail for guiding the pallets supplied from the block molding machine, and a feeding frame that is roll-supported and moved back and forth by the lifting frame is installed at the upper part of the lifting frame to guide the lifting frame. After the pallet supported by the rail is lifted by the feed frame, the section is moved by reversing the feed frame. The pallet is supported by the upper surface of the guide rail by the lowering of the lift frame, and then the feed frame is returned to its original position. Pallet transfer method of the concrete block automatic molding machine characterized in that the section movement. A guide rail which is installed between the block molding machine and the next treatment step to guide and prevent separation of the supplied pallet; An elevating frame provided to elevate to a predetermined height by an elevating cylinder inside the guide rail; A pallet conveying apparatus for a concrete block automatic molding machine, comprising: a conveying frame configured to move on a stepped section in a lifted state by rolling a predetermined section by rolling forward and backward by rolling on an upper part of a lifting frame.