JPS61114808A - Pressing concrete production unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a manufacturing apparatus for manufacturing pressurized concrete using a pressurized concrete formwork that is formed by fitting pressurizing convex portions into recesses. It is something.

[Prior art and its problems]

Conventionally, the general idea in manufacturing concrete products is to manufacture one product using seven formworks, and when manufacturing pressurized concrete, it is necessary to pressurize the convex part of one formwork and apply pressure to the convex part. The pressure was maintained until the concrete solidified.

However, if we try to produce pressurized concrete products in large quantities, if we pressurize and hold the pressure on - number of formworks,
Since a large number of pressurizing parts and the like are required to perform pressurization, equipment costs are high and the manufacturing cost of pressurized concrete becomes high. Furthermore, if a large number of equipment such as pressurizing parts is required, a large installation space is also required accordingly.

Furthermore, for example, when applying pressure in the pressurizing section and maintaining the applied pressure, the pressurizing equipment cannot be used until the concrete solidifies, making it impossible to perform pressurizing work smoothly and increasing production time. In the past, there were problems such as the problem of getting stuck.

Therefore, there has been a demand for manufacturing equipment that can produce pressurized concrete products in large quantities at low cost.

[Purpose of the invention]

This invention was created in view of the above-mentioned circumstances.
The purpose is to provide a pressurized concrete IJ) manufacturing apparatus which can pressurize a large number of molds with one pressurizing section, and which can perform pressurizing work smoothly and shorten manufacturing time.

[Structure of the invention]

According to this invention, the formwork can be stacked in multiple stages, and the pressurizing frame is formed so that the pressurizing convex part of the uppermost formwork can be pressed by the pressurizing part, and the pressing state of the pressurizing part is controlled. A holding frame capable of holding the device is provided.

By pressing the pressure convex part of the uppermost formwork with the pressurizing part, it is possible to press each pressure convexity of the multi-stage formwork, and
The holding frame is configured such that the pressed state of each formwork pressing convex portion can be maintained.

〔Example〕

This invention will be explained below with reference to illustrated embodiments.

The pressurized concrete IJ-cont manufacturing apparatus 1 includes a pressurizing frame 3 having a pressurizing part 2, a formwork 4 stacked in multiple stages on this pressurizing frame 3, and a pressurizing part 2 of the formwork 4. It consists of a holding frame 5 that can hold the pressed state. (
(See FIG. 1) The pressurizing frame 3 includes a base frame 3a,
Column frames 3b, 3b extending upward from both longitudinal ends of this base frame 3a, and this column frame 3.
b, and a support frame 3C which is installed between the upper ends of the pressurizing parts 2 and two pressurizing parts 2 are attached at a predetermined interval in the longitudinal direction, and is assembled in a substantially square shape.

The holding frame 5 also includes a base frame 5a, column frames sb extending upward from both longitudinal ends of the base frame 5a, and supports constructed between the column frames 5b and the upper ends of the 5b. It is assembled from the frame 5C in a substantially cursive shape.

A plurality of pressure frames 3 are arranged in parallel at predetermined intervals, and holding frames 5 are arranged in parallel at both ends of the mold 4 in the longitudinal direction and at an intermediate position between both pressure frames 3.

The pressurizing section 2 is composed of a screw jack 6 consisting of a cylinder part 6a and a pressing plate 6b. The formwork 4 also includes a recess 4a into which concrete is poured, and a pressurizing projection 4b that fits into the recess 4a and pressurizes the concrete.

To manufacture pressurized concrete using such a manufacturing apparatus 1, first, one of the column frames 3b and 5b of the pressurizing frame 3 and the holding frame 5 is connected to the base frames 3a and 5.
Fold down centering on one end of a to open one side of the pressurizing frame 3 and the holding frame 5. Then, from this opening, the formwork 4 filled with concrete and stacked in multiple stages with the recesses 4a placed on the pressurizing projections 4b is inserted.

Next, the column frame 3b of the pressure frame 3 is raised and fixed to one end of the support frame 3c. Then, the pressing plate 6b of the screw jack 6, which is the pressing section 2, presses the pressing convex portion 4b at the uppermost stage of the formwork 4. At this time, the concave portion 4b presses the pressure convex portion 4b of the lower formwork 4, and this is transmitted to the lowest formwork 4, and the entire formwork 4 stacked in multiple stages is pressurized. (See FIG. 4) Next, the column frame 5b of the holding frame 5 is raised and fixed to one end of the supporting frame 5c to maintain the pressurized state of the multi-stage formwork 4 by the pressurizing section 2.

(See Figure 1) And multi-stage formwork 4 by pressurizing frame 5
The concrete is moved while maintaining the pressurized state to solidify the concrete. (See FIG. 5) Next, the holding frame 5 is set between the pressure frames 3, and the multi-stage formwork 4 is inserted as shown in FIG. At this time, the holding frame 5 used is one after concrete solidification work has been completed.

By sequentially repeating these steps, the manufacturing device 1
Manufactures pressurized concrete.

Note that the pressurizing section 2 is not limited to a screw jack as in this embodiment, but may be of any type. Further, if the size of the formwork 4 changes, this can be dealt with by appropriately increasing the number of pressurizing parts, pressurizing frames, and holding frames.

〔Effect of the invention〕

The present invention has the above configuration and has the following effects.

■ Equipped with a pressure frame that allows formwork to be stacked in multiple tiers and pressurizes multiple tiers of formwork at once using the pressurizing section, making it possible to pressurize multiple formworks at once. .

Therefore, it is not necessary to pressurize several molds with one pressurizing section, and the time required for pressurizing work can be shortened. Furthermore, since a large number of molds can be pressurized with one device, the installation space for the device can be reduced even when a large number of molds are pressurized.

■ Since it is equipped with a holding frame that can maintain the pressurized state in the pressurizing frame, there is no need to pressurize the concrete in the formwork until it solidifies using the pressurizing part of the pressurizing frame.

Therefore, there is no need to allow time for the concrete to solidify, and the pressurizing frame can be fully used, so it is possible to shorten the pressurizing time mentioned in (2) and also shorten the manufacturing time.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the manufacturing device of the present invention, Fig. 2 is a partially cutaway perspective view of the formwork, and Figs. 5, 4, and 5 are perspective views showing the pressurized concrete manufacturing process by the manufacturing device. It is. 1... Pressurized concrete production equipment, 2...
・・・Pressure part, 3...Pressure frame, 3a...
...Base frame, 3b...Column frame, 3
c...Support frame, 4...Formwork, 4
a...Concavity, 4b...Pressure convexity, 5.
...Holding frame, 5a...Base frame, 5b...Column frame, 5c...Support frame, 6...Screw jack, 6a
... Part of the cylinder, 6b... Pressing plate.

Claims (1)

[Scope of Claims] A pressurized concrete formwork formed by fitting a pressurizing convex part into a concave part can be stacked in multiple stages by placing the concave part on the pressurizing convex part, and the formwork can be stacked in multiple stages. A pressurizing frame configured to be able to press an upper pressurizing convex portion by a pressurizing portion, and a holding frame capable of maintaining a pressed state in the pressurizing portion, the pressurizing portion being able to press the uppermost pressurizing convex portion. Each pressure projection of the multi-stage formwork can be pressed by pressing the pressure projection of the frame, and the holding frame is configured to be able to maintain the pressed state of each mold pressure projection. Pressurized concrete production equipment featuring: