JPS5894413A - Formwork for centrifugal molding of taper pole made of concrete - 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 The present invention relates to a concrete formwork for centrifugally forming concrete taber balls, and mainly relates to a formwork that can be heated to remove temperature.

Conventionally, most of this type of concrete formwork has two gutter-like OTM frames that can be opened in the longitudinal direction, into which the concrete raw material is poured, and the lid frame is rotated around its axis m0. After centrifugal molding and II.

The formwork is divided again to form 11-piece concrete balls.

However, as mentioned above, the formwork not only has seams in the axial direction, but also because of these burrs, there is a risk of injury to workers during wiring work when used for ball erection work or utility poles. Therefore, careful work is required to remove O burrs after molding. In addition, when the ball is long, the number of bolts that tighten the longitudinal joints becomes too large, and the 1m frame must be assembled and disassembled each time it is molded, which requires labor and time, and the cost of molding the ball. is pushing up.

On the other hand, balls have a tip radius of 51 mm according to the standard;
Conventionally, a large number of matching formworks are prepared, but one with the maximum length is prepared for each tip dimension, and one with the shortest dimension is prepared. When using it, I made sure to use only part of it.

However, preparing a large number of molds means that the formwork is not used frequently, which increases the cost of the finished product.
ll frame must be replaced.

Also, when forming short and small balls using a long mold.

This is because the formwork is rotated at higher speeds than necessary.

The present invention addresses the shortcomings of the conventionally known forms for forming Taber poles, forms concrete-faced Taber balls without causing burrs, and can also form partial forms according to the length and diameter of the molded product. By changing the length, you can get the necessary and sufficient length.
The main object of the present invention is to provide a 5K concrete taber ball molding frame which can obtain a formwork with a diameter dimension and which can heat and degrease a molded product.

This invention consists of several υ identical Chiba circular 1119-part formworks that can be connected in the length direction, and each of the partial formworks is provided with at least one rotary wheel, and these rotary wheels are provided. This is a frame for forming concrete Taber balls that is characterized in that all wheels have the same diameter and are concentric with the formwork.

Next, another invention! ! & horizontal direction Kl [In a tapered ball frame made up of several tapered circle wS partial frames with the same taper that can be connected, each partial frame is provided with at least one rotary wheel, and these O rotary wheels are all of the same diameter, and flanges are provided at the joint ends of these partial forms 0Jl1, and the joints i11 of the flanges where these partial frames are joined each other have a concentric circle with the inner circumferential surface of the formwork. The respective cross-sectional shapes are semi-circular, semi-elliptical, rigid, and hand-pressed hexagonal, and the annular grooves of some of these similar shapes are at least as large as the bold through holes of the flanges. -, 1ico are provided on one side of these sliding flanges, and a steel 41 having a cross-sectional shape and a diameter that is exactly half sunk into the annular groove and can be closely contacted with the entire circumference of #l! This is a formwork for centrifugal molding of concrete tenose balls, each equipped with a seal ring made by Ill and a T-* ridge.

The present invention will now be explained based on a typical embodiment shown in the drawings.

In the figure, reference numeral 20 is a concrete Taber ball centrifugal molding frame, which is made up of several partial formworks 204.20 heavy so that they can be sequentially connected and disassembled in the length direction.

2 (h...20n is a tapered cylindrical t-less frame, and when connected, it becomes a series of tsu-ba formwork.
...20<, 20m, 20m ...200
A rotary wheel 23 concentric with is fixed integrally. What is the diameter of this rotating wheel? , 20n, 20
The same applies to s...200. Said partial frame 20s, 20 pieces.

20g...20n is the smallest unit 7 that cannot be further divided. Generally, a steel plate is press-formed into a Taber cylinder, the joints are welded, and the inner surface is polished, or the inner surface of a seamless steel pipe is formed by Taber processing. The 20 taper shown in the spear is an exaggerated illustration, but it is about the actual Theba sword degree, 1t, IAs.

The joint surfaces 24 of the flanges 21 and 22 of each of the partial formworks 201 to 20n are provided with an annular groove 25 concentric with the inner diameter of the partial formwork.
are engraved on each ring, and the cross section of the ring #25 is normally semicircular, but it is semielliptical.

It may be a hand-pressed hexagon, an isosceles triangle, or a similar shape (see Figures 1-4 to f7).

Further, the annular grooves 2 and 5 are arranged at least once inside the through hole 26 passing through the tightening bolt. Adjacent partial formwork 20+, 20g to be joined together.

The diameter and cross-sectional shape of the annular grooves 25 provided in the 7 flange 21 and 22 of 20@... or 20n are equal to each other. Therefore, other partial formwork 2 with different radius in sequence
The radius is different from the annular groove 25 provided on the flange of 0z, 20, 20m...201, and generally, as the diameter is reduced due to taper, the annular groove 25C)
The dimensions are also liquefied.

27 is a seal ring made of steel wire, and the flange 21
．． Either one of the flange 22 is fitted into the annular groove 25 of the flange 21 having a large diameter 1il, for example, into the shape 11 which is sunk once and a half, and is spot welded, attached, or fixed with an adhesive. In other words, the diameter of this seal ring 27 is equal to the diameter of the annular groove 25 into which it is to be fitted,
Its cross-sectional shape is a pair of annular grooves 25,
Spear 4-? As shown in Fig. 7, it is shaped like a circle, an ellipse, a regular hexagon, or a rhombus. 3 for circular cross section
0 may be provided on the seal ring 27O gold plate (spring 4
(See Figure 8).

As described above, each partial formwork used in this invention is 20+, 20m, 20g...
・・Apply an ammonium agent such as puff fin to the inner circumferential surface of the 2-on Kffi frame and the centrifugally molded product to make it easier to separate them, and firstly, connect the adjacent partial formwork so that the mating surfaces 24 are aligned, and then flange 22C) Fit the seal ring 27 protruding from the joint surface 24 into the annular groove 25 provided on the adjacent flange 21 made of Os, insert the bold into the through hole 26 and tighten it, so that the joint m24 is brought into full contact with each other. let

When the length of the concrete ball to be formed is long, a large number of partial frames are used. To manufacture thick and short poles, formworks with thicker diameters are sequentially connected.For example, when forming thin and short poles, use molds from 20+ to 2On-1. Use for up to 20 people. Then centrifugal force molding, 4Ik
gm atmospheric pressure steam is used to develop the concrete strength to a certain extent, and then the formwork 20 is firmly fixed to I11, the tip of the internal concrete F ball is widened, and it is pushed in with a jack. .

Concrete b ball and formwork 20 are tapered (Torai 1/7S
(It has a slight taper), so the friction will be completely broken after moving it a few times, and then just push it out or pull it out of the concrete ball formwork 20, and leave it there!
Whether it is a finished product or not, please contact us! When fattening, if the entire lid frame 20 is dried and heated, it will expand into the ring shape and melt the mold release agent, making it easier to mold.

Formwork 20%, 2o3.20.・The size of the concrete that should be formed from the old 2 On! According to It8, partial formwork 20+, 2 (h, 20m...
If you select 20n, you can form a taper ball made of concrete (concrete), and the length of the assembled formwork 200 can match the dimensions of the tapered concrete ball to be formed, making the power of the centrifugal forming machine effective. Can be used.

Furthermore, in the above-mentioned mutually connected partial formwork in the first aspect of the present invention, there is no straight line in the length direction, and there is no fear that OSm marks or burrs will be formed in the length direction on the molded product.
It can be molded into concrete Taber balls that look good and require no post-processing.

In addition, this O type frame 20 is the S minute temperature frame 20z, 20g...
・・２０． Although it is necessary from the inside, once the O is assembled, as long as the same type of pole is manufactured, it is best to leave it as it is.
Can be used as many times as you want, 1llll! ! There is no need to disassemble each time li is used, which increases work efficiency and reduces the cost of finished products.

Generally, partial formwork 20s, 2 (h, 20s ・"...'
2On medium diameter ones are frequently used and are used for forming most short balls, and in these parts,! Now that it's attached, you can attach or remove some of the frames near both ends according to the dimensions.
Assembly and disassembly work is also extremely easy.

Also, adjust the dimensions of the diameter end of the lid frame near the top jlIi1 to the standard dimensions, and mold the partial formwork in sequence.
It is layered.

In addition, in this IF1 honorable invention, it is only necessary to use it for convenience, and it can be used effectively as a whole, and becomes a source of energy saving.

In addition, each part tj 1 frame 20z, 20x, 20m
...20, at least one rotating wheel 2
3, there is no problem in centrifugal molding no matter how high the temperature is.

In addition, the partial frames 20t, 2 (h, 20.a...
...Since the IIi width of 2On is short, precision finishing is easy with an internal polishing machine, etc., and the molded product can have a smooth surface.

Next, as an effect of the first-year, second-year invention, in addition to being able to achieve the effects of the first-year invention, there is a first-order O effect.

Each part frame 201.20 snow, 20g...20no
In each joint 1I24, the dimensions and shapes of the seal ring 27 and the seal ring 27 are in the relationship as described above, that is, they match perfectly, so the flange 21
．． When 22 is tightened with several bolts, the joint surface 24 is fully periphery KI, and the sealing 27, which was in full contact and protruding by the length, is integrated into the mating annular 42S, and the circumferential surface of the V-ring 27 is tightened. is in close contact with the annular groove 25, and the concrete raw material during centrifugal forming does not leak from the joint surface.Also, even though there is a very small gap, the concrete raw material that has entered the S/- ring part will not leak out from the joint surface. Even if a thin burr is formed without any further leakage due to slip lag, it will be separated during the Ill molding and applied to this gap, so it will not cause any problems in the second and subsequent molding. In the second and subsequent formations, the aim agent is disposed of after assembly, so the tumor is filled with the aim agent.

Concrete raw materials will not flow out.

Furthermore, when inserting a cylindrical lid frame that can be divided into pieces in the circumferential direction and length direction of the conventionally known pile, several O A cylindrical protrusion 11 is made to protrude in the axial direction from the inner part, and a circular depression 12 is provided in the lid frame to which the protrusion can fit, creating a so-called "inro". The processing work is completely unnecessary due to the second invention, and unlike the conventional technology, the area of the mating end faces of this fitting part is narrow.

If the length of the protrusion s11 is longer than the length of the circular recess, it will be impossible to join by tightening a pair of oy flange bolts.
The seal ring 27 and the annular groove 25 overcome the drawbacks of the prior art in that due to imbalance in the tightening force, the abutting surfaces are crushed and the cores are joined at an angle, causing an original barrier at this joint.
It can be completely resolved by the joint action of mating with J
! Unlike the prior art, the present invention does not require any processing technology to make the size of the cylindrical protrusion shorter than the depth of the circular recess 12 in order to prevent the cylindrical protrusion from being crushed, and the present invention does not require it at all. Haraseki 15 Completely eliminates the drawback of conventional technology that burrs occur on molded products! It is possible to eliminate the need for removing molded products by heating the formwork.

[Brief explanation of drawings]

The drawings show something related to this output qK. Figure 1 is a partially sectional view of a conventionally known pile shoe frame. Figure 2 is an external side view of a typical embodiment of the invention. Figure 3 is a cross-sectional view of part 01 of the frame 2, with part 01 omitted, Figure 4,
Figure 5 is a cross-sectional view showing the various bulges of the joint. Figures 6 to 8 are sectional views of the seal ring, respectively. Code 20 in the figure...Formwork, 20s s 20m%20s...20n.
...partial frame. 21.22...7 funge, 23... Rotating wheel. 24... Joint surface, 25... Annular groove. 27...V-ruling.

Claims (1)

[Claims] 1) Consisting of several Taber circle mS half frames of the same Taber that can be connected sequentially in the length direction, each of the partial formworks includes:
A frame for centrifugal forming of concrete tapered balls, characterized in that at least one rotating wheel is provided, and all of these rotating wheels have the same diameter and are concentric with the formwork. 2) Length direction Ki [In a Taber ball lid frame made of several frames made of the same taper O Taper cylindrical parts that can be connected next,
Each partial formwork is provided with one rotating wheel each, and these rotating wheels are all of the same diameter, and each of these partial formwork joints has 7 flanges.
i is provided. The joint lIK of the flanges that join these partial formworks to each other
are concentric circles with the inner circumferential surface of the ffi rod, and each cross-sectional shape is a quick circle, a semi-ellipse, a rhombus, a regular hexagon, and one of these O-shaped annular grooves is, A small (and overlapping) hole is formed on the inside of the bold through hole of the flange, and one of these adjacent flanges has a cross-sectional shape that is exactly half-immersed in the annular groove and can be in close contact with the entire circumference of the groove. A concrete spreading taber ball centrifugal forming spreader frame, each of which is equipped with a steel wire seal ring having a diameter.