JPH03213309A - Concrete block forming line - Google Patents

Abstract

PURPOSE:To reduce the installation area to a smaller one, also reduce the loss time and increase productivity by carrying out the process from mold opening all through mold assembling on a turn table. CONSTITUTION:Concrete is placed from a feeder 23 into a mold 8 in the placing position F, and levelling work on the surface of feeding section of the placed concrete is carried out in the levelling position G. Then, the concrete is transferred to a truck 3 on the delivery position H, and a mold 8 is put into a curing chamber 4, and then the mold cured for the given time is pulled out of the curing chamber 4 and placed on a turn table 1. The mold 8 for a curing agent is mold opened on the turn table 1. When a core mold is pulled out in the center direction of the table 1 and transferred to the release position B, a product is lifted up from the mold 8 by a releasing crane 21 and released, and cleaning and applying oil are carried out while the core mold travels along the clearing position C, oil applying position D and the mold assembling position E. Then, the assembled mold 8 is pivoted to the placing position F. Continuous forming is carried out by repeating said series of actions.

Description

Detailed Description of the Invention (Field of Industrial Application) This invention is a method for manufacturing concrete blocks in which a series of steps are carried out, including transporting the formwork, setting the form, pouring concrete, curing, opening the mold, and demolding the product. This relates to the molding line.

(Prior Art) A conventional concrete block forming line is formed by combining straight paths. The most common configuration, as shown in FIG. 4, is to form a closed loop with two straight paths 31, 32 and traversers 33, 34 provided at both ends, and open the mold along the first straight path 31. Each process of A, demolding B, cleaning C, oiling D, mold setting E, concrete pouring F, and leveling G was arranged, and a curing room 4... was arranged along the second straight path 32. It is something. Formwork 8 is trolley 3
While moving intermittently along the first straight path 31, the cleaning, oiling, mold setting, concrete pouring, and leveling of the formwork are performed by human or mechanical power, and the second straight path is moved by the l.rahasa 33. It is sent to the passage 32 and stored in the curing chamber 4, and after a predetermined time has elapsed, it is taken out from the curing chamber and transferred to the first straight passage 31 by the traverser 34 on the opposite side, where it is solidified through the mold opening and demolding process. Block or demolded.

On the first straight path 31, there is a crane 21 for demolding blocks.
And when a batcher plant 25 for concrete pouring is arranged and the formwork has a mold (separable mold) 8a that is separated from the formwork body such as a core mold, the mold opening process A to the mold clamping process E are performed. An auxiliary path 35 for transporting the separation mold 8a and a separation mold removal device 15 are provided between the two, and the separation mold 8a separated from the main body is transported along the auxiliary path 35 together with the main body 8.

When the mold is large, the opening, cleaning, oiling, and clamping steps are usually performed manually.

(Problem to be Solved by the Invention) As the blocks to be molded become larger, the installation area of the entire line becomes extremely large in a conventional molding line mainly consisting of straight paths. For example, for formwork that requires a center-to-center distance of 6 m between adjacent formwork in order to secure space for work, the processes of opening, demolding, cleaning, oiling, setting, concrete pouring, and leveling are required. Nine points are required with the traversers at both ends, and the length of the first straight path 31 is six.
X8=48m. Therefore, if the building is small, the line must be branched or bent in a complicated manner, and especially when using a formwork with a core mold, a straight line is required because an auxiliary path 35 is attached. 31 becomes wider and a dead space is formed on the extension of the auxiliary path 35, resulting in a disadvantage that the installation area of the molding line becomes very large.

In addition, operations such as mold opening, demolding, cleaning, oiling, mold setting, concrete pouring, and leveling must be performed while the formwork is stopped, and cannot be performed while the formwork is moving. For example, if the work takes 8 minutes and the transfer between processes takes 2 minutes, there is a problem that 2/10 of the total time is lost time.

In view of the above-mentioned problems, the present invention has been made with the object of providing a concrete block forming line that has a small installation area, reduces loss time, and further improves productivity.

(Means for Solving the Problems) In order to solve the above problems, the present invention provides the first method described above.
A configuration is adopted in which each process arranged in a straight path, at least the process from mold opening to mold assembly, is performed on a turntable. That is, the concrete block forming line of the present invention is composed of a straight path 2 equipped with a reciprocating transfer means 3, a turntable 1, and a transfer means 9 for transferring formwork 8 between the two, and a curing chamber. 4 are arranged along the straight path 2. And a small amount (form opening process A of the formwork)
The steps from to the mold assembly process E, in the above example, the mold opening process A, the mold removal process B, the cleaning process C1, the oiling process, and the mold assembly process E are performed on the turntable 1. When the formwork has a mold that can be separated from the main body, such as the core mold 8a,
The separation type demolding device 15 is arranged on the center side of the turntable 1 so that the separation mold 8a moves toward the center of the turntable 1 and is opened. -For boat fishing,
In addition to the process from opening the mold to clamping the mold, it is convenient in terms of line configuration to perform the concrete pouring process F and the leveling process G on the turntable 1.

(Function) The process from mold opening to mold assembly is often performed manually, especially in large block molding lines. In this invention, these steps are performed on the turntable 1, and the operator can ride on the turntable 1 and work continuously even while the turntable is moving, in the same state as when the mold is stopped. Even if the time required for each process of demolding, cleaning, oiling, and mold assembly varies, there is no loss of time for each operation, and there is also no loss of time during formwork transfer, which increases productivity. Significantly improved.

In addition, the entire process of mold opening, demolding, cleaning, oiling, mold setting, concrete pouring, and leveling is placed on the turntable 1, and 8 positions including the delivery position with the straight path 2 are placed on the turntable 1. If the distance between the centers of adjacent formworks is 6m, which is the same as in the above example, then 6×
8/π-15°3m, and adding the working area of 3m x 2 outside the center of the formwork 8, it was sufficient to use a turntable with a diameter of 21.3m, and it was formed by combining the conventional straight path. The installation area can be much smaller than that of a line.

In particular, when the formwork has a mold that can be separated from the main body, such as the core mold 8a, this mold 8a is also demolded onto the turntable 1, so it is necessary to add something like the auxiliary path 35. If the mold 8a to be separated is removed from the mold toward the center of the turntable 1, the space on the turntable 1 can be used more efficiently, and the installation area can be significantly reduced compared to the conventional line.

In addition, by placing the various tools necessary for opening, closing, cleaning, and oiling the formwork, as well as the air pressure and power sources that power them, in the center of the turntable 1, the necessary tools can be pulled out radially in each direction and used. This makes it easier to unify the locations of tools and power sources, and unify work procedures.

(Embodiment) The figure shows an embodiment of the present invention, where ■ is a turntable, 2 is a straight road, 3 is a cart that reciprocates on the straight road 2, 4.
. . . are curing chambers arranged along the straight path 2, 5 are rails provided radially at locations dividing the turntable 1 into eight equal parts, and 6 are rails in the curing chamber 4. The trolley 3 moves the rail 7 and formwork 8 in the direction perpendicular to the straight path 2.
The formwork 8 is transferred between the trolley 3, the turntable 1, and the curing chamber 4 by the transfer device 9 configured by the drive device (not shown) that moves the formwork in the direction along the .

The turntable 1 has a center 11 as shown in FIG.
A wheel 1 whose center is supported by a wheel 1 and which rolls on a circular rail 12
The periphery is supported by 3. The turntable 1 can be rotated by a structure in which a chino is fixed to the circumference and driven by a sprocket that meshes with it, or a structure in which the circumference is frictionally driven by tires.The figure shows the latter structure. Drive device 14
It is shown. A core removing device 15 moves along an auxiliary rail 16 arranged inside the rail 5 of the turntable to remove and insert the core mold 8a.

On the turntable 1, A is the mold opening position, B is the mold removal position, C is the cleaning position, D is the oiling position, E is the mold setting (and reinforcing) position, F is the concrete pouring position, and G is the leveling position. , H are delivery positions, but other than demolding, concrete pouring, and delivery, the work performed at each position is not necessarily limited to the work with the name given to that position, and between these positions, Each operation is performed as a series of operations even while the turntable is rotating.

21 is a crane for removing blocks, 22 is a product storage area,
23 is a feeding machine, 24 is a feed material hopper, 25 is a batcher plant, 26 is a running path of the feeding machine, and 27 is a running path of a material feeding hopper. The charging machine 23 reciprocates between the concrete pouring position F and the material supply value 128, and the material supply hopper 24
reciprocates between below the batcher plant 25 and above the feeder 23 which has moved to the material supply position 28.

Next, an overview of the molding process on the illustrated molding line will be explained. Each process itself is not particularly different from conventional processes. At the concrete pouring position F, concrete is poured into the formwork 8 from the pouring machine 23, and at the leveling position G, the surface of the pouring opening portion of the poured concrete is leveled with a trowel. Next, go to delivery position H and move to trolley 3.
The cart 3 is moved to the front of the vacant curing chamber 4 and the formwork 8 is placed in the curing chamber 4. The next rolling cart 3 travels to the formwork that has been cured for a predetermined period of time, pulls out the formwork from the curing chamber 4, and places it on the turntable 1. During this time, the turntable l must be stopped. The cured formwork 8 is opened on the turntable 1. At this time, the core frame 8a is pulled out toward the center of the turntable l and removed from the mold. Then, when moving to demolding position B, the demolding crane 21 lifts the product from the formwork 8 and demolds it, and while moving between cleaning position C, oiling position D, and mold assembly position E, Cleaning, oiling, and mold assembly are performed by a worker riding on the turntable 1. When the assembled formwork 8 is rotated to the concrete pouring position, concrete is poured, and by repeating this operation, concrete blocks are continuously formed. The stoppage time of the formwork at each position is usually determined by the time required to pour concrete.

(Effects of the Invention) For the reasons explained in the above-mentioned operation section, the molding line of the present invention can reduce the installation area of the entire line compared to the conventional molding line, and the building of the molding factory can be made smaller. Furthermore, lost time during the molding work can be almost completely eliminated, and the degree of freedom in allocating time for each work is increased, so variations in work load are eliminated, and productivity can be greatly improved.

[Brief explanation of drawings]

Figures 1 to 3 are diagrams showing one embodiment of the present invention,
FIG. 1 is a plan view, FIG. 2 is a front view, and FIG. 3 is a side view. FIG. 4 is a plan view schematically showing an example of a conventional molding line. In the diagram, 1: turntable 2: straight path 3: trolley 4: curing room

Claims (2)

[Claims] (1) Straight path (2) equipped with reciprocating transfer means (3)
), a turntable (1), and a transfer means (9) for transferring the formwork (8) between the two, the curing chamber (4) is arranged along the straight path (2), and the curing chamber (4) is arranged along the straight path (2), Steps (A) to (E) from opening to mold assembly are turntables (1)
Concrete block forming line, characterized by being carried out on. (2) In a concrete block molding line using a formwork having a core mold (8a) or other separate mold, a separate mold removal device (15) is placed near the center of the turntable (1). The concrete block forming line described in item 1.