KR100884548B1 - Square waterway pipe mold apparatus - Google Patents

Abstract

A mold device for molding a rectangular waterway pipe is provided to allow an operator to easily delaminate the inner mold from the cured rectangular waterway pipe even with small force when removing an inner mold from a rectangular waterway pipe cured, and to produce a waterway pipe product with high quality by preventing flaws or damage on an inner part of the waterway pipe product when removing the inner mold from the cured waterway pipe product. In a mold device consisting of an outer mold(10), an inner mold(20), and a vibration part(11) formed on a bottom part of the outer mold to uniformly distribute concrete flown into a space between the inner and outer molds, a mold device(100) for molding a rectangular waterway pipe is characterized in that: the inner mold comprises: a contraction/expansion part(23) formed on an inner face of the inner mold after cutting a bottom part of the inner mold to a predetermined gap in a state that an inner part of the inner mold is hollow; a wedge bar(24) which is inserted into the contraction/expansion part and closely slid onto an outer face of the contraction/expansion part, and which has projections formed on both sides thereof to maintain an expanded state; and an adjusting unit inserted into the contraction/expansion part to forcibly contract or expand the inner mold. The inner mold can be delaminated from a cured rectangular waterway pipe by operating the adjusting unit in a state that the adjusting unit is closely inserted into the inner mold, thereby forcibly contracting or expanding the contraction/expansion part.

Description

Molding apparatus for square water pipe forming {SQUARE WATERWAY PIPE MOLD APPARATUS}

The present invention relates to a mold apparatus for forming a square channel tube, and more particularly, in the molding of a square channel tube for assembling the inner mold and the outer mold and pouring concrete therebetween. The present invention relates to a mold apparatus for molding a rectangular square channel tube, which can achieve the effect of improving the product quality and shortening the production time of the product by smoothly demolding.

In general, the square water pipe is repeatedly installed at the edge of the sidewalk or the road to drain the rain water is formed inside the body of the square of the concrete material in the form of a round or square pipe.

The rectangular water pipes as described above are not manufactured with a general mold for producing a "c" water pipe tube due to the special shape that is sealed on all sides, and are manufactured using a separate mold.

The present applicant has developed a mold for manufacturing a square channel tube requiring a special mold as described above through long research and trial and error, and based on the research results, the inventors invented a method of manufacturing a square channel tube and registered a patent in Korea. It is registered as 0312281 and continues to use.

Briefly describing the patent registration technology, the vibrating portion 11 is formed to be evenly distributed between the inner, outer formwork 20, 10 of the concrete mixture injected into the lower end of the outer formwork 10, the inner The formwork 20 has a slanting angle 23 formed at the center of the upper end so that the concrete mixture can be introduced into both sides and the bottom of the inner and outer formwork 20 and 10 within a short time, and the inside of the formwork 20 is hardened. The manufacturing method of the square waterway tube, characterized in that the shrinkage, expansion portion is formed so that the waterway pipe can be easily separated, wherein the contraction, expansion portion turnbuckles (26, 26 ') installed horizontally in the lower cap (20b) of the inner formwork (20) One side end of the) is coupled to the side of the lower cap (20b), the lower end is coupled to the fixing pin 27 formed on the bottom, so that both sides of the upper, lower caps (20a, 20b) can shrink, squeeze Has a means for, upper, lower cap 20 a, 20b) The turnbuckles 28 and 28 'formed at the front and rear ends of the upper and lower caps 20 and 10 can contract and expand.

The conventional rectangular channel tube mold is configured to shrink in the inner mold. Constriction and expansion of the expansion part to separate it from the hardened water pipe. In view of the constriction and expansion part, the internal formwork is divided into upper and lower parts, and each corner part is connected with turnbuckles on both sides, and several jockeys inside. Composing the frame and rotating the left and right screw rods to the outside to shrink and expand the internal formwork.

However, the mold according to the conventional rectangular water pipe manufactured as described above was confirmed that the following problems occur during use.

First, when the operator forcibly rotates the turnbuckle using a lanyard, it is very difficult to separate the mold in a state in which the hardened water pipe is in close contact with the inner surface of the hardened channel.

This resulted in the need for a lot of force to rotate the turnbuckle as the force pulled by the rotation of the turnbuckle is distributed over a wide range.

Second, the jockey frame also requires a large amount of force by simultaneously separating the central portion of the inner wall of the hardened water pipe, causing a problem that the screw is easily worn.

Third, in order to remove the internal formwork from the inner form of the water pipe by separating the internal formwork with a great deal of force, a separate equipment is required. By pulling out the flaw, a flaw occurs in the inner wall of the water pipe product, and this flaw becomes a factor of degrading the quality of the product.

The present invention has been made in consideration of the above circumstances, and an object of the present invention is to form a rectangular aqueduct that can be easily peeled off by a worker with little force in removing the internal mold from the rectangular aqueduct pipe hardened in a state where the internal mold is in close contact. To provide a mold apparatus for.

Another object of the present invention is to provide a mold apparatus capable of easily peeling an inner mold from a hardened water pipe by using a small amount of force by intensively transmitting the necessary force in one part to peel the inner mold from the hardened water pipe. have.

In addition, another object of the present invention is to provide a mold apparatus capable of producing a water pipe product of excellent quality by minimizing the defect in the product in removing the inner mold peeled from the product.

The present invention is a mold apparatus consisting of a vibrating portion formed in the lower portion of the outer mold to be evenly distributed concrete between the outer mold and the inner mold and the inner, outer mold to achieve the above object, the inner mold is In the hollow state, the lower part is cut at regular intervals, and a shrinkage and expansion portion are formed on the inner surface, and the shrinkage and expansion portion are inserted into the inside, and are contracted and formed to slide in close contact with the outer surface of the expansion portion. It is characterized in that the mold device comprising a wedge bar configured to be maintained, and the control means for fitting the contraction, expansion portion of the inner mold to forcibly shrink and expand the inner mold.

The contraction, expansion portion is formed on the inner surface of the inner mold in a hollow state and is composed of a support portion on the upper portion, and a movable portion having a fitting groove on both sides of the support portion and a tapered slope and an open groove on the lower portion, respectively.

On the other hand, it is preferable to further include a rubber plate inserted into the opening of the contraction, expansion portion to seal the inside of the inner mold.

In addition, it is formed on both sides of the outer mold rotatably and further includes a fixing part for fitting / fixing to the protrusion of the wedge bar.

Here, the fixing part includes a hinge part formed on an outer mold, a rotating member rotatably assembled to the hinge part, and having a long groove in which a protrusion of the wedge bar is fitted, and a protrusion formed on an upper surface of the rotating member. .

In addition, the adjusting means is inserted into the inner mold and the body having a shaft support plate on both sides, the shaft is assembled to the support plate of the body and a plurality of rotating parts are integrally formed, welded to each of the rotating parts Rotating plate is fitted to the fitting groove of the part, characterized in that it comprises a pair of drive unit integrally formed on one side of the shaft and a bolt connected to the drive unit and screw assembly.

As described above, the mold apparatus for forming a square channel tube according to the present invention has the following effects.

First, in peeling the inner mold from the square water pipe hardened in a state in which the inner mold is in close contact, there is an effect that the operator can easily peel off with little force.

Second, there is an effect that can be easily peeled from the hardened water pipe by the concentration of the force used in peeling the inner mold in one place.

Third, in removing the internal mold from the hardened water pipe product, it is possible to prevent the flaw or damage inside the water pipe product by lifting and moving instead of forcibly pulling the internal mold and removing the internal mold. have.

Next, embodiments of the present invention will be described in detail with reference to the drawings.

1 is a perspective view of a mold apparatus for forming a square water pipe according to the present invention.

As shown the mold apparatus 100 of the present invention is largely the outer mold 10 and the inner mold 20 is inserted into the outer mold 10 and the adjusting means 30 to move and control the inner mold. Is done.

The outer mold 10 has a vibrating portion 11 is vibrated by a well-known electric equipment (not shown) so that the concrete mixture is evenly distributed in the mold, and the slope of the outer mold 10 ( 10a, 10b, 10c, and 10d are formed to be opened and closed by the hinge 12 formed at the bottom and are formed to be fastened to each other by a bolt (not shown).

Since the configuration of the external mold 10 is described in detail in the applicant's patent, the detailed description thereof will be omitted in order to clarify the gist of the present invention.

On the other hand, the characteristic part of the outer mold 10 of the present invention is formed in the longitudinal side both sides (10c, 10d) of the outer mold 10, the groove 13 is fitted to both sides of the inner mold 20 to be seated therein And the fixing part 14 which can fix the fitted state of the inner mold 20 is formed at the bottom.

The inner mold 20 has a surface of a smooth metal material on the outside and is hollowed out in a state in which the lower center portion is cut out.

The hollow inside of the inner mold 20, the support portion 21 to prevent the surface from bending in the upper portion, and the fitting groove 22a and the open groove in the longitudinal direction at regular intervals on both sides of the support portion 21 (22b) A contraction and expansion portion 23 composed of a moving portion 22 having a groove 22c is formed.

In addition, a wedge bar 24 is inserted into the contraction and expansion 23.

The detailed configuration of the outer mold 10 and the inner mold 20 will be described in detail with reference to FIG. 2.

First, the outer mold 10 is configured to be rotated and opened and closed by the hinge 12 formed at the bottom, as described above, the grooves 13 and the lower side of which both sides of the inner mold are inserted into both sides in the longitudinal direction. The government 14 is formed.

The fixing part 14 is connected to the hinge 14a and the rotating member 14b fixed to the side plates 10c and 10d so as to rotate, and the through grooves 14c and protrusions on the inside of the rotating member 14b. 14d) is integrally formed.

On the other hand, the inner mold 20 is in the hollow state inside the lower portion is inflated, the contraction, the expansion 23 is formed, the contraction, the rubber plate 25 in the open hole (22b) formed at the end of the expansion (23) ) Is assembled and the wedge bar 24 is inserted with both sides protruding therein.

The protrusion part 24a of the wedge bar 24 inserted into the inner mold is fitted into the through hole 14c of the rotating member 14b of the fixing part 14 to be firmly assembled.

Here, as shown in FIG. 3, the wedge bar 24 has slopes 24b on both sides thereof, and a protrusion 24a is integrally formed thereon.

On the other hand, Figures 4 to 5 is a perspective view and an operational state diagram of the adjusting means of the mold for forming a rectangular water pipe according to the present invention.

As shown in the drawing, the adjusting means 30 is inserted into the inner mold 20 and is slidably assembled to the body 31 having the shaft support plate 31a on both sides and the support plate 31a of the body 31. A shaft 32 in which a plurality of rotating parts 33 are integrally formed, a rotating plate 34 welded to each of the rotating parts 33 and fitted into the fitting groove 22a of the moving part 22, and the shaft ( 32 is composed of a pair of drive unit 35 is formed integrally on one side and the bolt 36 is screwed and connected to the drive unit 35.

Adjusting means 30 formed as described above, when the operator rotates the bolt 36 left / right by using a separate personal tool such as a wrench, the driving unit 35 which is engaged with one side thereof rotates in a fan shape and at the same time the driving unit ( As the shaft 32 fixed to the other side of the 35 is rotated, the rotating plate 34 integrally formed with the shaft 32 is rotated.

The rotating plate 34 is fitted into the fitting groove 22a of the moving part 22 formed on both sides of the inner mold 20 to substantially pull and push the moving part 22 to contract and expand the entire inner mold 20. It is to let.

Hereinafter, a state of use of the mold apparatus for forming a square waterway tube according to the present invention will be described with reference to FIGS. 6 to 7.

6 is a view showing a state in which the inner mold is inserted into the outer mold in the contracted state.

First, the adjusting means 30 is inserted into the hollow inside of the inner mold 20, and the rotating plates 34 formed on both sides of the adjusting means 30 are inserted into the fitting grooves 22a of the moving parts 22, respectively. Rotate at and shrink the inner mold 20.

That is, when the rotating plate 34 is inserted into the fitting groove 22a, the operator rotates the bolt 36 of the adjusting means 30 so that the driving unit 35 rotates and at the same time is integrally connected with the driving unit 35 ( As the rotating part 33 and the rotating part 33 rotate, the rotating plate 34 connected with the rotating part 33 rotates.

As the rotating plate 34 inserted into the fitting grooves 22a of both moving parts 22 rotates, each moving part 22 is contracted and the rubber plate 25 formed at the bottom of the inner mold 20 is bent. The wedge bar 24 is smoothly shrunk by moving upward along the slope.

In addition, the upper surface of the control means 30 is in close contact with the lower surface of the support portion 21 of the inner mold 20, it is easy to lift or move the inner mold.

 As described above, the inner mold 20 is in contact with the outer mold by expanding the outer mold of the inner mold in the state in which the outer mold 10 is inserted.

7 is a view showing a state in which the inner mold is inflated close to / coupled to the outer mold.

As shown, the inner mold 20, which is moved and inserted in the state in which the adjusting means 30 is inserted, is crimped through the grooves 13 formed on both sides of the outer mold 10 at both ends thereof. The operator rotates the drive part 35 by rotating the bolt 36 using a tool.

At this time, the shaft 32 formed integrally with the driving unit 35 and the rotating unit 33 and the rotating plate 34 integrally assembled with the shaft 32 are rotated and inserted into the fitting grooves 22a, respectively. 33, the outer peripheral surface of the inner mold 20 is in close contact with the groove 13 of the outer mold 10 to be firmly assembled.

In addition, the contraction of the lower portion as the moving portion 22 is expanded as described above. The rubber plate 25 of the expansion part 23 is extended so that the lower surface is formed in parallel with the bottom surface of the inner mold 20, and the lower surface of the wedge bar 24 is pressed against the upper surface of the rubber plate 25.

In addition, the wedge bar 24 is slid down along the slope 22b of the moving part 22 is contracted, the expansion part 23 is fitted in the space of the expanded state and the outer mold 10 to maintain this state The inner mold 20 is expanded even when the adjusting means 30 is removed by rotating the rotating member 14b of the fixing part 14 formed at the lower part thereof and fitting it to the protrusion 24a of the wedge bar 24. It can keep the state.

On the other hand, by placing the concrete mixture in a state in which the inner mold and the outer mold is in close contact by the above process and curing for a predetermined time, the inner mold is demolded, before inserting the adjusting member 30 into the inner mold. After removing the rotating member 14b by twisting the protrusion 14d formed on the upper portion of the rotating member 14b with a brace (not shown) or by using a hammer or the like to remove the fixing part 14, the adjusting member 30 is removed. Inserting the inner mold is spaced apart from the inner wall of the hardened water pipe according to the process described above.

In addition, the spaced inner mold 20 can be removed by backing off slightly lifted state using the adjusting means 30 to prevent scratches or damage to the inner surface of the product.

The movement of the adjustment means 30 is formed to be able to move forward / backward automatically along the rail (not shown) to reduce the work weight of the operator and to rotate the bolt 36 to rotate the drive unit 35 The work is also integrated into the control means that can move semi-automatically along the air box or rail can maximize the efficiency of the work.

1 is a perspective view of a mold apparatus for forming a square water pipe according to the present invention

Figure 2 is a partial perspective view of the combined state of the mold apparatus for forming square water pipes according to the present invention

Figure 3 is a perspective view of a chain bar portion of the mold apparatus for forming square water pipes according to the present invention

Figure 4 is a perspective view of the adjustment means of the mold apparatus for forming a square water pipe according to the present invention

Figure 5 is a side cross-sectional view showing a driving state of the control means of the mold for forming a rectangular waterway tube according to the present invention.

Figure 6 is a side view of the inner mold is expanded from the outer mold of the mold apparatus for forming a rectangular waterway tube according to the present invention

Figure 7 is a side view of the inner mold shrinkage state from the outer mold of the rectangular water pipe tube molding apparatus according to the present invention

* Explanation of symbols on the main parts of the drawings *

10 ... external mold 11 ... vibration part

12 ... hinge 13 ... home

14 ... fixture 20 ... internal mold

21 ... support 22 ... moving part

23 ... contraction, inflation 24 ... wedge bar

25 ... rubber plate 30 ... adjusting means

31 ... body 32 ... shaft

33 ... rotating part 34 ... rotating plate

35 ... drive section 36 ... bolt

Claims (6)

In the mold apparatus consisting of a vibrating portion 11 formed in the lower portion of the outer mold 10 so that the concrete flowing between the outer mold 10 and the inner mold 20 and the inner, outer mold can be evenly distributed, The inner mold 20 is cut in the lower portion at a predetermined interval in the hollow state inside, shrinkage, expansion 23 is formed on the inner surface; The shrinkage bar 24 is inserted into the contraction and expansion part 23 and is formed to be in close contact with the outer surface of the contraction and expansion part 23, and the protrusion bar 24 is formed on both sides to maintain the expanded state 24. ); Included in the contraction, expansion portion 23 of the inner mold 20, adjustment means for forcibly contracting, expanding the inner mold 20; includes; Here, the control means 30 is driven in the state of inserting / in close contact with the inside of the mold 20, the contraction, forcibly shrink / expand the expansion part so that the hardened square tube and the inner mold 20 can be peeled off. Mold apparatus for forming a square waterway tube, characterized in that forming. According to claim 1, The contraction, expansion 23 is formed on the inner surface of the inner mold 20 in a hollow state and the support portion 21 and the upper; A pair of moving parts 22 having fitting grooves 22a at both sides of the support part 21 and tapered slopes 22c and open grooves 22b at the lower portions thereof, respectively. Mold apparatus. The mold for forming a rectangular channel tube according to claim 2, further comprising a rubber plate (25) inserted into the opening (22b) of the contraction and expansion part (23) to seal the inside of the inner mold (20). Device. According to claim 1, wherein the rectangular mold tube characterized in that it is rotatably formed on both sides of the outer mold 10 and the fixing portion 14 for fitting / fixing to the protrusion (24a) of the wedge bar (24) Molding device for molding. The method of claim 4, wherein the fixing portion 14 is a hinge portion (14a) formed in the outer mold (10); A rotating member (14b) rotatably assembled to the hinge portion (14a) and having a long groove (14c) in which a protrusion (24a) of the wedge bar (24) is fitted in the center; And a protrusion 14d formed on an upper surface of the rotating member 14b. Here, the wedge bar 24 by rotating the rotary member 14b in the state in which the wedge bar 24 is closely attached / fitted to the contraction / expansion part 23 to be fitted / assembled to the protrusion 24a of the wedge bar 24. Molding apparatus for forming a square waterway tube, characterized in that the rigid fixing). According to claim 1, wherein the adjusting means 30 is inserted into the interior of the inner mold (20) having a shaft support plate (31a) on both sides; A shaft 32 which is slidably assembled to the support plate 31a of the body 31 and in which a plurality of rotating parts 33 are integrally formed; A rotating plate 34 welded to each of the rotating parts 33 and fitted into the fitting groove 22a of the moving part 22; A pair of driving parts 35 integrally formed on one side of the shaft 32; And a bolt 36 connected to the driving unit 35 by screw assembly. Here, as the bolt 36 rotates, the driving unit 35 rotates and at the same time, the shaft 32 and the rotating plate 34 rotate to move the fitted moving part 22 to contract and expand the inner mold 20. Molding apparatus for forming a square waterway tube, characterized in that.

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