JPS6082304A - Alc reinforcing material fixing device - 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 ALO (autoclaved light, 7-
This invention relates to an ALO reinforcing device for arranging reinforcing materials in a formwork for producing (cellular concrete) parallel to the side plates of the formwork with good positional granularity.

(Issues of the prior art that should be resolved by the invention) Generally, ALO raw materials are injected into a formwork in which reinforcing materials are arranged to produce a semi-plastic concrete block, which is then cut with piano wire and then cured at high temperature in an autoclave. By doing this, ALO Hanel is manufactured. This ALU
The market for panels has been rapidly expanding in recent years due to their high strength, light weight, thermal insulation properties, and ease of construction. The reinforcing material is added to increase the tensile strength of the ALO panel, which is weak because it is made of cement. This reinforcement is
During the ALO panel manufacturing process, if the reinforcing material is not aligned in the correct position in the mortar after hardening, although it is aligned in the formwork before or after pouring the raw material into the formwork,
When cutting a mortar block, the reinforcing material hits the cutting blade and damages the cutting tool, and the reinforcing material is exposed on the surface of the ALC panel, damaging its appearance. Furthermore, if reinforcements are not inserted at predetermined positions within the ALO panel, the calculated strength will not be achieved, which is a serious consequence. Therefore, after manufacturing the semi-plastic concrete block, it is important that the semi-plastic concrete block is accurately placed at a predetermined position within the block.

By the way, conventionally, as shown in FIG.
The reinforcing material 1 is suspended by suspending the fixing jig 2I, supporting the reinforcing material 1 by the corresponding fixing jig 2 of each set frame 3, and placing the set frame 5 across the formwork side plates 5. Formwork 6
The fixing jigs 2I are also suspended in the formwork 6. For this reason, the reinforcing material is pushed by the injection pressure of the raw material or the foaming pressure of the foaming agent in the raw material and is inevitably moved from its fixed position in the formwork.

Therefore, in order to fix 11' (when the reinforced side is placed in the formwork), the thickness of the fixing jig is increased (,8
) A possible method is to make a blind hole in the bottom plate of the form and insert the tips of the jigs i and Ta into it.

However, in method (2), the diameter of the hole formed in the product increases when the jig is removed after manufacturing the semi-plastic concrete block, and the strength of the product decreases. Method (2) cannot be used unless the position of the jig is determined, and it is inevitable that it requires a great deal of effort to clean the hole and insert the jig into the hole. Also, empirically, injection of raw materials,
One possible method is to predict the movement of the reinforcing side due to foaming and shift the position of the reinforcing material in advance so that it will be placed in a predetermined position according to the movement, but with this method, it becomes complicated to maintain the position of the reinforcing side. In addition, there is still the problem that the position of the reinforcing material within the product cannot be precisely controlled.

(Object of the Invention) The present invention was devised to solve the above-mentioned conventional problems, and it is possible to fix the position of the reinforcing material in the formwork with high precision regardless of the raw material injection pressure or foaming pressure. The purpose is to

(Structure of the Invention) The ALC reinforcing material fixing device of the present invention includes mounting the upper end of a fixing jig that supports the reinforcing side on a set frame, and bringing the lower end of the fixing jig into contact with the bottom plate of the form, and The set frame is installed between the side plates of the form, and the lower end of the fixing jig applies a frictional force large enough to prevent the material from shifting horizontally on the bottom plate of the form during foaming and injecting the raw material into the form. It is characterized by being generated between the bottom plate of the formwork and the bottom plate of the formwork.

(Second Example) As shown in FIG. 2, the device of the present invention has an upper end of a fixing jig 2 supporting the reinforcing side 1 mounted on a set frame 3, and a lower end of the other end of the fixing jig 2. is brought into contact with the formwork bottom plate 4, and the set frame 3 is placed across the formwork "+!!Jl 4', 5. Then, the F end of the fixing jig 2 and the formwork bottom plate 4 are In between, a frictional force of such a magnitude is generated that the end of the jig does not shift horizontally on the bottom plate 4 of the formwork when the material 75j is injected into the formwork 6 and foamed.

The magnitude of the frictional force generated depends on the contact force between the lower end of the fixing jig 2 and the formwork bottom plate 4, the area of contact 4Q, the friction coefficient of the contact surface, and the shape of the lower end of the jig. The friction force that can prevent the lower end from collapsing in the horizontal direction on the bottom plate 4 of the form during injection and foaming of the raw material into the form 6 is the actual N (by adjusting the contact force with obtained as.

In the inventor's experiments, at least 51 cg of o was required.

The lower end of the fixing jig 2 and the formwork bottom plate 4 are brought into contact and fixed by pressing and fixing the lower end of the jig onto the formwork bottom plate 4 using springs, hydraulic pressure, pneumatic pressure, repulsive force of the same magnetic poles of magnets, etc. A possible method is to fix the lower end of the jig to the formwork bottom plate 4 by magnetic adsorption or vacuum adsorption, but pressing using a spring is preferable in terms of ease of adjusting the contact force, ease of maintenance and handling, and cost. Fixation methods are particularly preferred. Furthermore, it is necessary to be able to easily separate the fixing jig 2 from the mold bottom plate 4 during demolding, and the method described above.

In either case, pressing requires only the force and suction force to be removed, and no particularly complicated separation mechanism is required.

Specifically, an example of the fixing jig 2A used in the fixing method for pressing using a spring will be explained with reference to FIGS. A handle 8 is fixedly attached to the handle 8, and a screw hole 9 is bored. Handle 8
A stopper 10 is attached to the screw hole 9, and a bolt 11 for adjusting the pushing force is inserted into the screw hole 9. 1 is a hexagonal hole for rotating the bolt 11 with a hexagonal wrench. 12 is a cylindrical lower member, and the upper and lower ends of the lower member 12 are provided with:
A spring guide 13 and a fixed shaft 15 having a reinforcing member support fitting 14 are fixedly provided. Furthermore, a long hole 16 is formed in the upper end of the lower member 12 along the longitudinal direction of the lower member 12. The upper end portion of the lower member 12 is slidably fitted into the upper member 7, and a sliding pin 17 that engages with a long hole 16 provided in the lower member 12 is attached to the upper member 7.
A compression spring 18 is interposed between the lower member 12 and the lower member 12, which is attached to the upper member 7 through the screw hole 9. In this way, the compression spring 18 automatically extends the sliding pin 17 until it hits one end of the slotted hole 16, and it is also possible to shorten the sliding pin 17 against the spring force until it hits the other end of the slotted hole 16. , the upper and lower members 7 and 12 are configured to be able to rotate together.

When the device of the present invention uses the fixing jig 2A, the handle 8
As shown in FIG. 4, the fixing jig 2 is hung on the set frame 6 by fixing it to the set frame 3 using the fasteners 10 provided thereon, and the extension force ( The lower end of the jig (fixed shaft 1
5) is pressed and fixed to the mold bottom plate 4, and the fixture 2A is supported at both ends by the mold bottom plate 4 and the set frame 3. Then, the reinforcing material 1 into which the fixing jig 2A is inserted and supported by the reinforcing material support fittings 14 is placed in the formwork 6.In addition, the method for hanging the fixing jig 2A to the set frame 3 is as follows. is inserted into the set frame 3, and the set frame 3
The handle 8 was fixed with a stopper 10, but
For example, the upper end of the fixing jig 2A may be fitted into the set frame 3 from the lateral direction and fixed. 2A and supported by the reinforcing material support fittings 14 of the fixing jig 2A, for example, the reinforcing material 1 may be hooked onto the fixing jig 2A.

Further, the extension force of the fixing jig 2A is obtained by the compression spring 18 due to its low cost and ease of maintenance, but as described above, it can be obtained by, for example, pneumatic pressure or hydraulic pressure.

It may also be obtained by the repulsive force of the same magnetic poles of magnets. The contact force between the lower end of the jig (the tip of the fixed shaft 14) and the formwork bottom plate 4 is:
Due to the stretching force of the two fixing jigs? ! t, and the fixed treatment Vl
, 2 A can be adjusted using spring adjustment screw mechanisms 9 and 11 provided at A. The shape of the tips of the two fixing jigs has a plane that is at an internal angle with the longitudinal direction of the jig as a contact surface so that the fixing jig 2A can be easily extracted from the semi-plastic concrete block and the contact force can be increased. It is preferable to have a columnar shape or a conical shape that becomes sharper toward the bottom.An example of the fixing jig 2B used in the fixing method using magnetic attraction will be explained with reference to FIGS. 7 and 8.O/71. J-1
19 in 1 is a cylindrical support member, a handle 8 is provided at the upper end of the support member 19, and a cylindrical magnet 20 and a reinforcing material support fitting 14 are provided at the lower end. Reference numeral 21 denotes a shaft rotatably fitted and suspended by the support member 19. A lever 22 is provided at the upper end of the shaft 21, and a columnar magnet 25 is provided at the lower end. As shown in FIG. 8, the magnets 20 and 23 have opposite magnetic poles glued together with insulators 24 and 25 sandwiched between them, and are used with the same magnetic poles aligned when placed inside the formwork 6.

When the fixing jig 2B is used, the apparatus of the present invention suspends the fixing jig 2B from the set frame 5, and the lower end of the jig (the seventh
In the figure, the lower end of the magnet 20) is brought into contact with the formwork bottom plate 4 and fixed to the formwork bottom plate 4 by magnetic attraction by the magnets 20.25, and thus the fixing jig 2
Support B at both ends. When removing the mold, move the lever 22 to 18
By rotating the magnets 20 and 25 by 0 U and aligning the opposite magnetic poles of the magnets 20 and 25, the magnetic adsorption force on the mold bottom plate 4 is canceled and the fixing jig 2B can be separated from the mold bottom plate 4.

(Effects of the Invention) As described in ``2'' below, the present invention is a small assembly in which the fixing jig for supporting the reinforcing material is fixed in the formwork with both ends supported by the set frame and the bottom plate of the formwork. The reinforcing material can be reliably held in place within the formwork against the force received when raw materials are injected and foamed. Therefore, the reinforcing material can be placed in the center of the product with high accuracy, ensuring the strength and quality of the product.

Incidentally, in the present invention, when the lower ends of the fixing jigs 2A and 2B are fitted with spring clamps and pulled in the horizontal direction, the tensile force between the Ins at which the lower ends of the jigs begin to slide on the formwork bottom plate 4 is 0.7, respectively. When the force of the compression spring 18 and the magnetic force of the magnets 20, 2!1 are adjusted so that g-f is 0.5 kg fL, the dimension (cover) from the front surface of the product to the reinforcing material 1 is As shown in the following table, the accuracy was significantly improved compared to the conventional device.

[Brief explanation of drawings]

Figure 1 is a schematic diagram of the conventional device, Figure 2 is a schematic diagram of the device of the present invention, Figure 3 is an enlarged sectional view of Figure 2, and Figures 4 and 5.
The figure is a sectional view taken along lines ■ and V in Figure 3, Figure 6 is a front view showing an example of the fixing jig with a cross section of the main part, and Figure 7 is a cross section of the other side of the fixing jig with the main part. Figure 8 is the front view shown in Figure 7.
■It is a line enlarged sectional view. 1... Reinforcement material, 2, 2A, 2B... Fixing jig, 5... Set frame, 4... Formwork bottom plate, 5... Formwork side plate, 6... Formwork, 7... Top member, 8・・Hand, 9・・Screw hole, 10・・
Fastener, 11. Bolt, 12. Lower member, 14. Reinforcement support metal fitting, 15. Identification shaft, 16. Long hole, 17.
・Sliding pin, 18... Compression spring, 19... Support member, 2
0.25・Magnet, 21・Shaft, 22#・Lever, 24
．． 25...Insulator. Figure 1 Figure 2 Figure 3 Figure 6 Figure 7

Claims (1)

[Claims] Attach the upper end of the fixing jig that supports the reinforcing material to the set frame,
The lower end of the fixing jig is brought into contact with the bottom plate of the formwork, and the set frame is placed across between the side plates of the formwork, and the lower end of the fixing jig is placed in contact with the formwork during injection of the raw material into the formwork, and when starting the formwork. An ALO reinforcing material fixing device n, characterized in that a friction force large enough to prevent horizontal displacement on the bottom plate is optically stopped between the lower end of the jig and the bottom plate of the form;
'.