JPH0217842Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a concrete block molding machine that allows formwork to be replaced in a short time.

[Prior Art] Concrete blocks have become increasingly diverse in recent years, but in a molding machine that removes them immediately after molding, it is necessary to replace the formwork for each item. Particularly in the current situation of molding small quantities and a wide variety of products, molds must be replaced frequently.

[Problems to be solved by the invention] In the above conventional method, the time required to replace the formwork ranges from several tens of minutes to several hours, which puts pressure on the actual molding time and reduces molding efficiency. . In particular, the fixing device that fixes it to the molding machine body when attaching and detaching the formwork is complicated.
In addition, the formwork is brought into the machine by hand, and because several workers work in a narrow space in front of the molding machine, accidents and damage often occur. Specifically, the formwork is suspended with a chain block, etc., placed on the conveyor at the front of the machine, pushed into a fixed position on the machine, the formwork is fixed, and the press mold is fixed to the press garter, adjusted and used. It is something.

The present invention aims to eliminate the complexity of conventional formwork replacement.

[Means for Solving the Problems] The present invention provides a rail frame extending to the left and right sides of the gate-shaped frame of the aircraft body, and two press devices are moved laterally on the rail frame by respective hydraulic cylinders. When one press device is on the molding machine, the other press device is used to attach and detach the molding part of the replacement mold and the mold, and the molding mold on the molding machine is This concrete block molding machine is characterized in that it is attached to a table part that moves up and down using elastic metal fittings.

That is, in the present invention, one press frame is always in the molding position, and the other press frame is positioned on either the left or right stationary table, so that the formwork device can be easily replaced at that position. This is what I did.

The press mold part can be easily attached to and removed from the press machine by inserting the multiple protrusions on the top surface of the press machine into the holes provided in the press machine, and inserting pins into the horizontal holes of the protruding protrusions to secure them. becomes. The molding frame is suspended from the press machine by fitting the L-shaped suspension fitting provided on the flange into the notch of the press mold mounting plate provided on the press machine.

[Example] As an example, a form exchange device for a concrete molding machine equipped with two press devices will be described below based on the drawings.

Figure 1 is an overall front view, and Figure 2 is an enlarged perspective view of the upper part of the gate-shaped frame. Rail frames 2 and 3 are provided extending to the left and right of the gate-shaped frame 1 of the molded machine body. , traverses the rail frames 2 and 3 by the action of hydraulic cylinders 4 and 5, and 2
A moving body 8 to which base press devices 6 and 7 are attached is placed. In the center of the gate-shaped frame 1 is a molded body 9.
There are stationary stands 10 and 11 on the left and right sides.

In FIG. 1, a replacement mold is being assembled on the right stationary table 11, and as shown in FIG. 3, the pressing mold part 12 is attached to the press device 7, and the mold frame 13 is further attached.

The press device 7 and the press mold part 12 are attached in the fourth step.
As shown in the figure, a taper pin 16 fixed on the upper peripheral edge of the press part 12 is fitted into a fitting hole 15 provided in the press mold mounting plate 14 of the press device 7, and a cover 17 is placed over the protruding part. and taper pin 16
This is done by passing the fixing pin 18 through a horizontal hole provided in the lateral hole.

Further, the formwork 13 has an L-shaped suspension fitting 20 rotatably attached to its flange 19, and the upper angle portion of the L-shaped suspension fitting 20 is fitted into the notch 21 of the press mold mounting plate 14. It is suspended from the press device 7 by rotating.

The mold assembled as described above is moved to the central molded body 9 position at the time of replacement. Then, the formwork 13 is positioned by fitting the positioning protrusion 23 on the table device 22 that moves up and down with the through hole 24 provided in the flange 19 of the formwork 13, and the elastic metal fitting 25 is Twist and hold. Then L
The hanging fitting 20 and the fixing pin 18 are disengaged, and the formwork 13 and the pressing part 12 are separated.

The elastic metal fitting 25 has a structure as shown in FIGS. 5 and 6. That is, it consists of a presser plate 30 attached via an elastic body 29 to the tip of a presser metal fitting 28 which is fixed to a rotating shaft 27 which is attached to the table device 22 and rotated by the action of a hydraulic cylinder 26 .

The holding plate 30 is fixed to the table device 22 by elastically pressing the periphery of the formwork 13 by the action of the holding fitting 28 which rotates under the action of the hydraulic cylinder 26 .

Molding is started in this way, but when replacing the mold, move the movable body 8 to the left in FIG. At step 10, the mold is exchanged, and the mold assembly carried into the molding machine 9 from the right stationary table 11 is opened to start molding.

In this way, while molding is being performed using one mold, the other mold is replaced, and different types of molded products are made using different molds one after another.

[Effects of the invention] The present invention allows the same molding machine to mold a wide variety of blocks using different types of molds, and also makes it easy to replace the molds, improving efficiency.

[Brief explanation of the drawing]

Fig. 1 is a front view of the embodiment of the present invention, Fig. 2 is an enlarged perspective view of the upper part of the portal frame, Fig. 3 is a front view when the same type is assembled, Fig. 4 is an enlarged view of that part, Fig. 5 6 is a front view of the right half showing the formwork holding structure, and FIG. 6 is a side view illustrating the operation of the elastic metal fitting. 1... Gate-shaped frame, 2, 3... Rail frame, 4, 5... Hydraulic cylinder, 6, 7... Press device, 8... Moving body, 9... Molding machine body, 10, 1
1... Fixed stand, 12... Press mold part, 13... Formwork,
14...Pressed mounting plate, 15...Fitting hole, 16...
Taper pin, 17... Cover, 18... Fixing pin, 19... Flange, 20... L-shaped suspension fitting, 2
1... Notch portion, 22... Table device, 23...
Positioning protrusion, 24... Through hole, 25... Elastic metal fitting, 26... Hydraulic cylinder, 27... Rotating shaft, 2
8... Presser metal fitting, 29... Elastic body, 30... Presser plate.

Claims (1)

[Scope of utility model registration request] A rail frame is provided extending to the left and right sides of the gate-shaped frame of the machine body, and two press devices are installed on the rail frame so that they can be moved laterally by hydraulic cylinders, and one press device is mounted on the molding machine body. , the other press device is used to attach and detach the pressing part of the replacement formwork and the molding form;
Also, a concrete block molding machine characterized in that the molding frame on the molding machine body is attached to a table part that moves up and down by means of elastic metal fittings.