JPS6246516B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for producing secondary concrete products such as concrete blocks and U-shaped grooves.

As shown in FIG. 1, a conventional device of this type has a plurality of curing tunnels 33 arranged in parallel, each having an inlet 31 at one end and an outlet 32 at the other end and a conveyor inside. A work conveyor line 3 is installed outside the curing tunnel in parallel with the curing tunnel.
4) Dismantle the formwork, demold the product, clean the formwork, assemble,
A series of concrete pouring operations such as oiling and concrete pouring are carried out, and the formwork filled with concrete is installed along the front of the entrance 31 of each curing tunnel, and its end is placed at one end of the work conveyor. The formwork is sent to the curing tunnel 33 via the transfer conveyor 35, and the formwork after curing is sent to the exit 32 of each curing tunnel.
A mold having a closed-loop circulation path is widely used, in which the mold is returned to the work conveyor line 34 via a return conveyor 36 which is provided along the front surface of the work conveyor line 34 and whose end reaches the other end of the work conveyor line 34. There is. However, in this device, the formwork always circulates on each conveyor, so in the 34 work conveyor lines, separate operations are performed for each process such as formwork dismantling, product demolding, formwork cleaning, assembly, and oil application. This requires a large number of personnel. In addition, since the formwork is transported on a trolley of a certain size, an unnecessarily large trolley is used for a small formwork, which increases the curing space. By pushing one trolley, one trolley loaded with cured formwork is pushed out from the exit 32, so even when filling with concrete is stopped due to process reasons, empty trolleys can be sent one after another into the curing tunnel 33. Therefore, heat energy such as steam for curing is wasted, and there is a lot of wear and tear on various parts such as carts and conveyors.

This invention solves the above-mentioned conventional drawbacks,
It can be operated with the minimum number of personnel required depending on the product production volume, and the curing space is small.
The present invention aims to provide a highly adaptable concrete secondary product manufacturing apparatus that achieves savings in heat energy for curing and is particularly suitable for high-mix, low-volume production where product types and production volumes vary.

An embodiment of the present invention will be described below with reference to FIGS. 2 to 4.

In the figure, 1 is a curing tunnel, which has an entrance/exit 2 at one end and is closed at the other end. Curing tunnel 1
A plurality of (four in this embodiment) are arranged in parallel to form a curing tunnel group 3. The entrance/exit 2 is provided with an opening/closing device 4 such as a curtain type or a door type.
Reference numeral 5 denotes a pouring work area provided on the outside of the entrance/exit 2 side of the curing tunnel group 3, and numeral 6 denotes a preliminary area that is connected to the pouring work area 5 as needed. A rail 7 extends in the longitudinal direction of the curing tunnel 1 from inside each curing tunnel 1 to the pouring work area 5.
A vibrating table 8 is provided outside the entrance/exit 2 of each curing tunnel 1. The vibration table 8 includes a base 8a fixedly installed in a pit 9 dug in a part of the pouring work area 5, and a pair of vibration tables 8 installed on the base 8a via vibration isolating rubber 8b.
A vibrator 8d is attached to each of these vibrating tables. Reference numeral 10 denotes a truck that supports the formwork 11 and runs on the rails 7. Reference numeral 12 denotes a cart driving device provided corresponding to each curing tunnel 1, which drives a charging device that engages with the cart 10 from inside the curing tunnel 1 to an endless chain 13 extending in the longitudinal direction of the rail 7 beyond the position of the vibration table 8. A tilting type claw 14 for use and a fixed type claw 15 for taking out are attached. The endless chain 13 extends from a groove 16 dug in the floor of the curing tunnel 1, passes between the vibration tables 8c and 8c, and extends to a groove 17 dug in the pouring work area 5, and is driven by a motor and a speed reducer (not shown). It is becoming more and more common. Further, 20 is a second rail laid on a machine frame 21 provided above the curing tunnel group 3, and extends in a direction perpendicular to the rail 7 for running the bogie. On the second rail 20 there is a hopper 2
2 and the screw conveyor 2 connected to this hopper.
Self-propelled concrete filling device 2 mainly based on 3
4 is placed so that it can run freely, and the screw conveyor 2
The concrete supply port 25 connected to the end of the concrete supply port 3 faces the upward opening of the formwork 11 placed on the cart 10 on the vibration table 8.

Concrete secondary product manufacturing device 26 with the above configuration
, in the pouring work area 5 in front of the desired curing tunnel 1 of the curing tunnel group 3,
After assembling and placing the formwork 11 on the cart 10 and applying oil, push the carts 10 one by one by hand to move them to the upper part of the groove 17 as shown by the chain line 27 in FIG. Drive the trolley 1 using the charging claw 14.
0 is slid onto the vibration table 8c, and concrete is poured into the formwork 11 from the concrete filling device 24 while being vibrated. Trolley 10 after concrete pouring
is charged into the curing tunnel 1 by the cart drive device 12 as shown by the chain line 28, and the same operation is repeated thereafter until the curing tunnel 1 is filled with the cart 10, which is then cured by filling with high-temperature steam or the like.
After curing, the cart drive device 12 is driven in the opposite direction, and all the carts 10 in one curing tunnel 1 are pushed by the removal claw 15 and taken out into the pouring work area 5.
After the formwork is dismantled within the work area, the product is demolded using a hoist (not shown) or the like, and the product is transported using a forklift or the like and stored in the preliminary area 6 or transported outside. The mold 11 after demolding is also cleaned within the casting work area 5, and the above steps are repeated thereafter.

As mentioned above, from dismantling the formwork 11 to demolding the product,
Work such as disassembling, cleaning, assembling, and applying oil to the formwork 11 is
Since the pouring can be carried out in batches in the pouring work area 5, these operations and the subsequent pouring of concrete into the formwork 11 can be carried out by one worker. 1 curing tunnel 1
After loading the trolley 10 into the tunnel, the operator can fill or demold concrete in the other part of the curing tunnel, transport the product, etc. In this way, one worker can sequentially perform all the work from concrete pouring to demolding for all the curing tunnels 1, or if a worker is assigned to each curing tunnel 1, each curing tunnel can be It is also possible to perform concrete pouring in parallel in one part. In this case, the cart 10 is placed in the curing tunnel 1.
During curing after charging into the interior, all other workers can leave the management staff behind and move to their workplaces to engage in other work.

In addition, all the carts 10 in one curing tunnel 1 are taken out at the same time by the cart driving device 12, so a narrower cart 10 is used for a small formwork 11, and a narrower cart 10 is used for a larger formwork 11. By using a wide trolley 10, a large number of formworks 11 can be filled in the curing tunnel 1, and the curing space is small, and there is no need to charge and circulate empty carts to take out the cart, so the steam There is less loss of isothermal energy, and there is less wear and tear on the trolleys, etc.

The present invention is not limited to the above embodiments; for example, the concrete filling device 24 may be provided above the vibrating table 8, or the concrete filling device 24 running on the second rail 20 may be
Instead, concrete may be poured into the formwork 11 by attaching a concrete filling bucket or hopper to a forklift that moves freely within the pouring work area 5. Further, the table vibrator may be of a type that supports the trolley 10 by moving up and down using a cylinder or the like.

As explained above, according to the present invention, it is possible to operate with the minimum number of personnel required depending on the product production volume, the curing space is small, and the thermal energy for curing can be saved. A highly adaptable concrete secondary product manufacturing apparatus suitable for high-mix, low-volume production where the type and production amount vary.

[Brief explanation of the drawing]

Fig. 1 is a schematic plan view showing an example of a conventional concrete secondary product manufacturing device, Fig. 2 is a partially cutaway plan view of a concrete secondary product manufacturing device showing an embodiment of the present invention, and Fig. 3 is a schematic plan view showing an example of a conventional concrete secondary product manufacturing device. FIG. 2 is a sectional view taken along line AA, and FIG. 4 is a sectional view taken along line BB in FIG. DESCRIPTION OF SYMBOLS 1...Curing tunnel, 2...Entrance/exit, 3...Curing tunnel group, 5...Pouring work area, 7...Rail, 8...Vibration table, 10...Dolly, 11...Formwork, 12...Dolly drive device, 13...Endless chain , 14...
Claw, 15... Claw, 20... Second rail, 24... Concrete filling device, 26... Concrete secondary product manufacturing device.

Claims (1)

[Scope of Claims] 1. A plurality of curing tunnels having an entrance/exit at one end and closed at the other end are arranged side by side, and a pouring work area is provided outside the entrance/exit side of the group of curing tunnels, and each of the above-mentioned A rail for running the bogie is laid from inside the curing tunnel to the above-mentioned pouring work area, and a vibration table that supports and vibrates the bogie running on the rail is installed outside the entrance and exit, and each of the curing tunnels is It is characterized by comprising a cart driving device in which loading and unloading claws that engage with the cart are attached to an endless chain extending in the longitudinal direction of the rail beyond each of the vibration table positions from inside. Manufacturing equipment for secondary concrete products. 2 A plurality of curing tunnels having an entrance/exit at one end and closed at the other end are installed side by side, a pouring work area is provided outside the entrance/exit side of the curing tunnel group, and the pouring work is carried out from inside each of the curing tunnels. A rail for running the bogie will be laid across the construction work area, and a vibration table for supporting and vibrating the bogie running on the rail will be installed outside the entrance/exit. a trolley drive device comprising a loading and unloading claw that engages with the trolley attached to an endless chain extending in the longitudinal direction of the rail beyond the rail; 1. An apparatus for producing a secondary concrete product, comprising: a concrete filling device for filling concrete into a formwork on the trolley, which is movably mounted on two rails and supported by the vibration table.