JPH0318161Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> This invention relates to an auxiliary device for installing or replacing formwork in a concrete block molding machine.

<Prior Art> Conventionally, in order to install or replace a formwork on a concrete block forming machine, the following procedure is generally performed.

A pair of rails 2, 2 (3rd -
Figure A) extends in front of the machine frame 1, and a trolley 3 with wheels 4 and 4 is placed on its rails 2 and 2, and a formwork 6 fitted with a press mold 5 is placed on top of it (Fig. 3-B).
After carrying this into a predetermined position in the machine frame 1, the cylinder 7 is operated and the lifting platform 8 is used to push up the formwork 6 and press mold 5 (Fig. 3-C).
Pull out the empty cart 3, insert receiving plates 10, 10 for receiving the formwork 6, and fasten them to the rails 2, 2 with vaults 9, 9.
On the other hand, the press cylinder 11 was operated to lower the press beam 12, and the press die 5 was coupled thereto (FIG. 3-D). Installed formwork 6
To take it out for replacement, do the opposite, lift it up a little with the cylinder 7, and then remove the receiving plate 10,
10 was removed, and then placed on an empty trolley 3 and pulled out.

The problem with the above method is that the receiving plate 1
It was troublesome and inefficient to attach and detach the 0 and 10 to and from the rails 2 and 2. In order to eliminate this drawback, Japanese Patent Publication No. 16604/1986 states:
A proposal has been made in which small wheels are detachably attached to the wheel attachment parts provided at both ends of the formwork, and the formwork with the small wheels attached is lowered onto an existing or temporary rail and can be moved along the rail. However, it is expected that removing and installing the small wheels in a narrow space within the machine frame will be rather troublesome and time-consuming.

<Problem that the invention aims to solve> Even with the conventional method of using trolleys, if the time required to replace the formwork could be significantly reduced by other means that do not use receiving plates, Not only is this extremely beneficial for improving operating rates, but it is also advantageous because it does not require major changes to existing equipment.

Taking the above-mentioned points into consideration, the purpose of this invention is to devise a structure that can be left attached to the machine frame without causing any problems, instead of being attached or removed every time the formwork is changed.

<Means for solving the problem> In this invention, a member having an operating arm and a supporting arm arranged opposite each other is rotatably pivoted to the machine frame, and a spring attached to the member is used to connect the member to a positioning stopper. Oppress them and force them to occupy a fixed position. When the formwork is carried in, this operating arm is pushed by the side of the cart and rotates against the force of the spring, at which time the supporting arm escapes to the outside of the formwork. Therefore, when the formwork is pushed up from the truck by the cylinder or when the pushed-up formwork is lowered onto the truck, the supporting arms do not get in the way. Also, when an empty cart or a cart loaded with formwork is pulled out, the operating arm comes off the side of the cart and returns until it hits the positioning stopper due to the force of the spring, but at this time the supporting arm moves away from the formwork. Occupies a position that allows locking. Therefore, the formwork can be supported by lowering it onto the support arms. In other words, this device can be left attached to the machine frame.

<Example> This invention will be explained using an example shown in the drawings.
It is as follows.

In Figure 1-A, a pair of rails 2, 2 are attached to the machine frame 1;
extends in front of the machine frame 1, and a wheeled truck 3 is placed on the rails 2,2. (See Figure 2). The trolley 3 is fed into the machine frame 1 in two ways: one is when the press die 5 and the formwork 6 loaded on the trolley 3 are attached to the molding machine, and the other is when the empty trolley 3 is fed into the machine frame 1.
This is when the press die 5 and form frame 6 which have been removed from the molding machine are placed thereon. Similarly, there are two ways to pull out the cart 3 from inside the machine frame 1. One is to pull out the empty cart 3, and the other is to pull out the loaded press mold 5 and formwork 6.
It's time to take it out. . The explanation up to this point is no different from the previous one.

By the way, in this invention, a member 15 having an operating arm 13 and a support arm 14 arranged opposite to each other is rotatably pivoted to the machine frame 1, and a spring 17 is attached to the member 15 to press it against a positioning stopper 16. There is. This member 1
The operating arm 13 of No. 5 is pushed by the side surface of the truck 3 sent into the inside of the machine frame 1 and rotates against the force of the spring 17. Conversely, when the truck 3 is pulled out from the inside of the machine frame 1, , the spring 17 immediately comes off the side of the trolley 3.
It becomes possible to press against the positioning stopper 16 with the force of . On the other hand, when the support arm 14, which is integrally connected to the operating arm 13, sends the truck 3 into the machine frame 1, the support arm 14, as shown by the two-dot chain line in FIG.
When escaping to the outside of the formwork 6 and pulling out the trolley 3 from inside the machine frame 1, it occupies the position shown by the solid line where the formwork 6 can be locked.

It may be stable to hold the formwork 6 at two locations on each side using the above-mentioned auxiliary devices, but for this purpose, as in the illustrated example, the connecting bar 18 must also be connected to the other supporting arm 14 on the same side. Connect them so that they can rotate by the same angle at the same time. In the illustrated example, a guide roller 19 is rotatably attached to the tip of the support arm 14 to minimize resistance and wear caused by sliding on the foot surface of the truck 3.

In the illustrated example, when the cylinder 7 is operated to push up the formwork 6 on the lifting platform 8, a total of eight guides 20 are provided to guide both sides of the formwork 6 so that it can be set in the correct position. It is attached to the machine frame 1 (see Figure 2). As can be seen from FIG. 1, this guide 20 has a tapered inner surface at the lower part, so that even if the formwork 6 on the cart 3 is initially quite off-center, the formwork 6 can be easily centered. It is becoming more and more common. Further, the press die 5 also has a pin 21 having a truncated conical head projecting upward. When this pin 21 is fitted into a hole 22 formed in the press beam 12, it sets the press die 5 in the correct position. Therefore, even if the press mold 5 fitted into the mold frame 6 and sent is initially quite off-center, the press mold 5 can be easily centered. In the figure, 23 and 24 are vibration exciters, 25 is a pallet, and 26 and 27 are vibration isolating rubber.

The operation of this device can be understood from the above, but to briefly explain, the truck 3 is connected to the machine frame 1.
(Fig. 1-B), the supporting arm 14 escapes to the outside of the formwork 6, so the cylinder 7
can be operated to lift the formwork 6 (Fig. 1-C), and by pulling out the empty cart 3, the formwork 6 can be held by the support arms 14 (Fig. 1-D).
figure). When vibrating the material into the formwork 6 using the vibrators 23 and 24, the formwork 6 is lifted up by the cylinder 7 so that it is slightly lifted from the support arm 14.
When removing the formwork 6 for replacement, similarly, raise it a little with the cylinder 7, and when the empty cart 3 is carried in, the support arms 14 will escape to the outside of the formwork 6, so if you lower it with the cylinder 7, It can be loaded onto an empty trolley 3.

<Effects of the invention> Since the auxiliary device of this invention can be left attached to the machine frame, there is no need to attach or remove it each time the formwork is replaced, and the desired operation can be carried out automatically and reliably by loading and unloading the trolley. It is extremely superior in that it can engage and disengage, and there is no problem even if the formwork is subjected to vibration.

[Brief explanation of the drawing]

Figures 1-A to 1-D are side views showing how the auxiliary device of this invention is used, and since they are bilaterally symmetrical, Figures 1-B to 1-D are side views showing the state in which the auxiliary device of this invention is used. Only half is shown. FIG. 2 is a plan view thereof. 3-A to 3-D are conventional examples and correspond to FIGS. 1-A to 1-D. 1... Machine frame, 2... Rail, 3... Dolly, 6...
...Formwork, 13... Operating arm, 14... Supporting arm, 15
... Member, 16 ... Positioning stopper, 17
……Spring.

Claims (1)

[Scope of utility model registration request] In a concrete block molding machine in which a formwork 6 is carried in and out on a trolley 3 that can run freely on a pair of rails 2, 2 extending from a machine frame 1 to the front of the machine frame, an operating arm 13 and a support arm 14 are used. A member 15 which is provided oppositely is rotatably pivoted to the machine frame 1, and the member 1
A spring 17 is attached to the positioning stopper 1.
6, and when the operating arm 13 is pushed by the side of the truck 3 and rotates against the spring 17, the supporting arm 1
4 escapes to the outside of the formwork 6, and when the operating arm 13 comes off the side of the truck 3 and returns by the force of the spring 17,
The support arm 14 is an auxiliary device for mounting the formwork of a concrete block molding machine, and is located at a position where the formwork 6 can be locked.