JPS6012928B2 - Mechanical plant for manufacturing concrete products - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mechanical plant for producing concrete products.

In mass production factories for concrete products, in order to make the forming forms work efficiently, we create a circulation circle that protects the forming area, concrete loading area, curing area, demolding area, cleaning and oiling area, etc., and supply concrete to the concrete loading area. Then, the product is removed from the demolding area.

This circulation circle system allows workers, tools,
Consumables, etc. can be arranged appropriately, and it has the same effect as the belt conveyor type mass production system for mechanical parts. Therefore, in recent concrete product mass production factories, it has become common practice to explore the above-mentioned circulation circle method. However, the circle method described above also has the following drawbacks.

In other words, it requires a large site, a long connecting path is created to close the circle, and the equipment and transportation time is ineffective for production, and the work area is arranged in a straight line, so it is difficult to use machinery to automate it. For example, they must be distributed in a distributed manner. This invention is based on the above-mentioned clarification of the drawbacks of the conventional system, breaks away from the circulation circle system that includes a curing area, consolidates other workplaces in one place, and creates a completely mechanized mechanical plant. This eliminates the above drawbacks. Communication between the plant and the curing field can be achieved by using transport vehicles or other methods depending on the site and factory layout. Hereinafter, the present invention will be explained in detail with reference to illustrated embodiments. FIG. 1 is a plan view of an embodiment of the present invention, the main parts of which are on the same transfer mechanism 1, the mold positioning and fixing mechanisms 2 and 3 at the adjacent mold removal position D and mold assembly position K, and the mold positioning and fixing mechanisms 2 and 3 at the mold removal position D, mold assembly failure K, automatic mold removal device 4 of the same shape installed close to the outside of both positions, automatic mold thinning device 5, rails 6 and 7 provided above both positions D and K, and their mold removal A product pick-up and conveyance device 8 mounted on the position side rail 6, a formwork cleaning and oiling device 9 mounted on the mold assembly position side rail 7, and a cured formwork M connected to the demolding position D at right angles to the transfer mechanism 1. Feeding mechanism 10 and its mold assembly position K
Assembly formwork delivery mechanism 1 connected to 1, this delivery mechanism 11
A concrete charging device 12 and the like is movably provided above. A detailed explanation of each part will be given step by step. In this example, the crowded formwork is transported by a forklift or other transport vehicle and placed on both side receiving rollers of the formwork supply mechanism 10.

The mounted formwork M advances to the left in the figure under its own weight due to the inclination of the receiving roller support frame, hits the preceding formwork, stops, and waits.
When the mold M that has already entered the demolding position D finishes demolding and taking out the product and moves to the mold assembly position K, the motor oa reciprocates the transfer frame 10b to remove the leading mold M that is waiting. One piece is sent to demolding position D. The transfer frame 10b has a hook 10c
are attached in multiple stages, and an appropriate gap is created in advance between the formworks M. A latch (not shown) is protruded from the lower surface of the formwork M at a position corresponding to the hook 10c, and this latch is opened by a spring during the return process of the hook 10c, and the hook 10
Only the forward stroke (c) has a well-known structure that receives the thrust.

When the formwork K is sent to the demolding position D, a detection device (not shown) confirms that it has reached the normal position and issues a signal.

The signal current causes the solenoid valve to open and compressed air enters the air spring type cylinder 13 (Fig. 2) of the positioning and fixing mechanism 2, pushing up the formwork receiving material 2b of the floating table 2a and forming the mold between it and the presser foot 14. The leg Mf of the frame M, in this case, is made of channel steel. Once the formwork M has been positioned and fixed in this way, the side plates of the formwork M are
This will open the toe board. The automatic demolding device 4 is developed by the present applicant, and its operating head 4a is adjusted in advance to the height of the mold M by adjusting its three leg screws 15 by a motor. The distance between the left and right opening/closing fingers 16 is also adjusted by another motor to match the latches (not shown) on both sides of the formwork M.

The stroke of the fluid pressure cylinder 4b is also adjusted.
Once the formwork M is fixed at the demolding position D, the fluid pressure cylinder 4
b brings the operating head 4a closer, and its opening/closing finger 16;
The molding fingers 17 actuate the latches on both sides of the formwork M and the molding handles to mold the mold.

In the meantime, the product pick-up and conveyance device 8 is moved from the standby position or above the product temporary lifting to the demolding position D by running over the seal 6, and the product in the opened mold M is moved to the demolding position D using the suction cup in this case. 8a. The picked up products are dropped off onto a temporary storage area under the ladder 6 or onto a conveyor, transport vehicle, etc. A vibration motor 18 attached to the lower surface of the floating table 2a vibrates the floating table 2a supported by the air spring type cylinder 13 to improve the separation of the product adhering to the inner surface of the mold M. Now, when the product is taken up, the air in the air spring type sill 13 is removed and the mold support member 2b is lowered, so that the mold M in the open state is placed on the circulation chain la of the transfer mechanism 1.

Then, the motor lb is driven and the formwork M is moved by the chain la.
is moved from the demolding position D to the mold assembly position K. A positioning mechanism that detects that the formwork M is in the correct position using a detection device (not shown) (limit switch, photoelectric element, etc.) and stops the motor lb, an air spring type sill 13, and a formwork receiving material for the floating table 3a. The formwork M is fixed by the positioning and fixing mechanism 3 consisting of 3b etc.
is fixed in the correct position. This positioning and fixing mechanism 3 is almost the same as that at demolding position D, except that it does not include the vibration motor 18. Subsequently, the cleaning and lubricating device 9 mounted on the rail 7 above the pattern position K moves and thickens directly above the opened formwork M.

This cleaning/lubrication device 9 was also developed by the applicant, and a rotating brush or buff 9a is attached to a bendable arm 9b, which rotates to perform the necessary vertical and horizontal movements. Normally, the brush or buff 9a is soaked in oil and cleaning and oiling are completed at the same time.
When the cleaning and oiling is finished, the device 9 is returned to the side, and then the automatic mold assembly device 5, which is exactly the same as the automatic demolding device 4, approaches and closes the open mold M.

This operation is the reverse of demolding, so the explanation will be omitted. When the mold assembly is completed, the mold assembly device 5 is released and the fixing mechanism 3 is opened. At this point, the assembly formwork delivery mechanism 11 comes into operation. That is, the transfer frame 11b is moved to the first position by the chain drive of the motor 11a.
Bare it in the position shown in the figure, and attach the hook 1 1c at the tip of the formwork M
Hang it on the non-return latch (not shown) attached to the inside of the leg. This transfer frame 11b has an inner frame 11b' inside an outer frame 11h, and when the inner frame 11b' is pulled, it moves independently, and only when its rear part hits the outer frame 11b, both the inner and outer frames move. It has become. Therefore, after the first large retraction from the mold assembly position K, the interval between the mold M and the multi-stage hook 11 of the outer frame 11b is
The concrete is sent sequentially at intervals determined by the pitch c, and when it reaches the vibrating table 19 below the concrete feeding device 12, the same intervals are maintained. The vibrating table 19 is similar to the positioning and fixing mechanism 2, and vibrates the molds M that are lined up by pressing them with presser feet 14, respectively. The concrete charging device 12 on it is a hopper 12a, and a frame 12b for moving the hopper 12a in the longitudinal direction of the formwork M.
, rail 12c, motor 2 that drives the wheels of the hopper.
d. It consists of a skip hoist device 12e and the like for transporting concrete from the ground to the hopper 12a, and the hoist 12e is provided so as to straddle the cured formwork feeding mechanism 10 in order not to expand the occupied space. In this case, the hopper 12a has two input ports 12f with screw feeders arranged in parallel at the bottom so that the two molds M can be loaded at the same time. Since the product of this embodiment has a long U-shaped groove, the hopper 12a is made movable, but it goes without saying that a fixed-position type may be used depending on the product. While concrete is being poured, vibration is applied to the formwork M fixed on the vibration table 19. After loading, if the formwork M is released from the presser foot 14, when the next formwork M is fed,
The particles are pushed out from above the vibrating table 19, and as at the entrance of the feeding mechanism 10, at the exit of the feeding mechanism 11, they are concentrated at the exit end due to the oblique angles of the receiving rollers on both sides. The formwork M is sequentially transported to the curing field by a forklift truck. The above has been explained using the illustrated embodiment, but in carrying out the present invention,
It is natural to make changes as appropriate depending on the factory site and other conditions, such as directly connecting the formwork entrance and exit of this mechanical plant to the curing field entrance using a transport mechanism, or changing each device and mechanism within the plant to a different type. .

This invention breaks the conventional wisdom that the best way to mass produce concrete products is to set up a curing field on a large site and a workshop surrounding it, and run the formwork all the way around, like the belt conveyor mass production method.

Processes other than curing are concentrated in the smallest space and completed in a thoroughly automated mechanical plant, so in addition to the efficiency of each automatic device, the integration eliminates wasted equipment and time.
This resulted in the highest productivity as a molding facility.

[Brief explanation of the drawing]

Fig. 1 is a plan view of an embodiment of the present invention, and Figs. 2 and 3 are cross-sectional views of the same along X-X and Y-Y.
is a mold assembly position, M is a mold frame, 1 is a transfer mechanism, 2 and 3 are positioning and fixing mechanisms, 4 is an automatic mold removal device, 5 is an automatic mold thinning device, 6
, 7 is a seal, 8 is a product lifting device, 9 is a cleaning and oiling device, 10 is a cured form feeding mechanism, 11 is next to the assembly form feeding machine, and 12 is a concrete charging device. Figure 2 Figure 1 Figure 3

Claims (1)

[Claims] 1 Formwork positioning and fixing mechanisms for adjacent mold removal and mold assembly positions on the same transfer mechanism, and automatic mold removal and mold assembly devices of the same type provided close to the outsides of the mold removal and mold assembly positions, respectively. and,
The rails installed above both positions above, the product pick-up and conveyance device placed on the rail on the demolding position side, the mold cleaning and oiling device placed on the rail on the mold assembly position side, and the product placed in the demolding position perpendicular to the above transfer mechanism. It comprises a cured formwork feeding mechanism to be connected, an assembled formwork feeding mechanism connected to the form setting position, and a concrete charging device movably provided above the formwork feeding mechanism, each of the above-mentioned mechanisms,
A mechanical plant for manufacturing concrete products, characterized by a concentrated arrangement of equipment in a minimal space.