KR101540916B1

KR101540916B1 - Molding apparatus for waterway pipe forming

Info

Publication number: KR101540916B1
Application number: KR1020150062924A
Authority: KR
Inventors: 정영환
Original assignee: 정영환
Priority date: 2015-05-06
Filing date: 2015-05-06
Publication date: 2015-07-31

Abstract

The present invention relates to a waterway pipe molding apparatus, and more specifically, to a waterway pipe molding apparatus which, when molding the waterway pipe, can easily separate an inner mold, disposed to make a hole for forming a waterway at a center, from the inside of an outer mold. According to the present invention, the waterway pipe molding apparatus comprises: an outer mold which is assembled to be separable in front/rear and left/right directions; and an inner mold which is inserted into the inner portion of the outer mold, to be separable, wherein the inner mold includes a main core which has a supporting plate combined in a lower portion and a plurality of fixing brackets formed at predetermined intervals on both lower ends of the inside; a pair of moving members which are combined to a hinge bracket which is hinge-coupled to the fixing bracket to control an inner diameter of the main core, so as to linearly reciprocate to be intersected to each other; and an inner diameter control unit which is installed between the moving members and comprises an operating member combined to a rotary axis arranged in an orthogonal direction of a moving direction of the moving members. In addition, the main core includes a core body which has a hemispherical cross section, and a plurality of brackets which are formed on an inner circumferential surface of the core body at predetermined intervals and have a plurality of cutouts on an outer circumferential surface.

Description

Technical Field [0001] The present invention relates to a mold apparatus for forming a water pipe,

The present invention relates to a mold apparatus for molding a water pipe, and more particularly, to a mold apparatus for forming a water pipe by forming a channel for forming a channel for forming a channel in the center of the channel, The present invention relates to a mold apparatus for a mold.

Generally, a water pipe is installed repeatedly at the edge of a delivery or a road so that rainwater can be drained, and the inside of a square body of concrete is formed into a circular or rectangular tube shape.

In order to construct the water pipe, the water tunnel mold is divided into upper, lower, left, and right sides, and then the concrete is poured, then dried for a certain period of time. When the drying is completed, each of the molds is demolded.

One example of such a technique is disclosed in Document 1 below.

Patent Document 1 discloses an outer mold comprising a front mold and a rear mold each having a bottom mold, a left mold and a right mold, and a fitting hole having a fitting hole, the mold being detachably assembled and held in a rectangular parallelepiped; A center mold removably inserted into the outer mold central region; And a vibrating means provided in a lower region of the outer mold to form a square concrete channel, wherein the center mold is detachably inserted between the front and rear molds, A cylindrical center mold having an outer periphery formed with a tapered cut portion; A gap adjusting means provided at both ends of the center mold to adjust a distance between cuts of the center mold; And a cut-off mold for selectively cutting the cut-out portion by being insertable and detachable as a deforming device to the cut-out portion taperedly formed in the center mold.

However, in the conventional technique as described above, a large amount of force is required to separate the mold by rotating the adjusting member (turnbuckle) by a worker. In order to separate the molded rectangular pipe, a blocking mold and a demoulding device It requires a separate tool to operate it, and since the assembling and separating work can not be performed without using a tool, there is a problem that workability is not easy.

Korean Registered Patent No. 10-1157419 (registered on June 12, 2012)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method and apparatus for separating an inner mold located inside an outer mold, And particularly, it is an object of the present invention to provide a mold apparatus for molding a water pipe tube which can be assembled and separated without using a separate tool, and which is excellent in workability.

In order to attain the above object, the present invention provides a metal mold for forming a hydroforming tube, comprising: an outer mold assembled to be detachable front and back and left and right; and an inner mold inserted into the outer mold so as to be removable, Wherein the inner mold includes a main core having a bottom plate coupled to the bottom plate and a plurality of fixing brackets formed at both lower ends of the bottom plate at predetermined intervals, and a hinge hinge coupled to the fixing bracket to adjust an inner diameter of the main core, A pair of moving members coupled to the bracket and linearly reciprocated so as to intersect with each other and an operating member provided between the moving members and coupled to a rotating shaft disposed in a direction orthogonal to the moving direction of the moving member, ; The main core includes a core body having a hemispherical cross-section, and a bracket formed on the inner circumferential surface of the core body at a predetermined interval and having a plurality of cut-out portions formed at an outer periphery thereof.

As described above, according to the present invention, the tool for molding a pipe can be easily separated without applying a large force, thereby reducing work fatigue due to manual work, and simplifying the components for separating the inner mold, There is an effect that the property and workability are excellent and maintenance is easy.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front view showing a mold apparatus for forming a water pipe according to the present invention; Fig.
FIG. 2 is an exploded perspective view showing a mold apparatus for forming a hydro channel according to the present invention; FIG.
3 is a perspective view showing an inner mold according to the present invention.
4 is an exploded perspective view showing an inner mold according to the present invention.
5 is a front view showing an inner mold according to the present invention.
6 is a plan sectional view showing an inner mold according to the present invention.
7 is a side sectional view showing an inner mold according to the present invention.

The present invention provides a metal mold for forming a pipe for a pipe structure comprising an outer mold assembled to be detachable front and back and left and right and an inner mold inserted to be detachable in the outer mold, The mold is coupled to a hinge bracket hinged to the fixing bracket so as to adjust the inner diameter of the main core and has a plurality of fixing brackets And an inner diameter adjusting unit provided between the moving members and configured to be engaged with a rotating shaft disposed in a direction orthogonal to the moving direction of the moving member; The main core includes a core body having a hemispherical cross-section, and a bracket formed on the inner circumferential surface of the core body at a predetermined interval and having a plurality of cut-out portions formed at an outer periphery thereof.

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In addition, a support frame in the form of a rectangular frame having a plurality of openings formed in the upper portion of the support plate is extended in the longitudinal direction, and a bearing block rotatably supporting a rotation shaft having a handle at one end is provided at an upper portion of the support frame. Respectively.

The actuating member is engaged with the rack and is simultaneously rotated simultaneously with the rotation of the rotating shaft so that the rack is moved in the left and right directions And a pinion that is reciprocated in a straight line by a predetermined distance.

In addition, a pair of guides including a plurality of rotation rollers rotatably installed to guide the movement of the rack are coupled to the outside of the rotation shaft.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a front view showing a mold apparatus for forming a water pipe according to the present invention, FIG. 2 is an exploded perspective view showing a mold apparatus for forming a water pipe according to the present invention, FIG. 3 is a perspective view showing an internal mold according to the present invention, 5 is a front view showing an inner mold according to the present invention, FIG. 6 is a horizontal sectional view showing an inner mold according to the present invention, and FIG. 7 is a side cross-sectional view showing an inner mold according to the present invention.

1 and 2, the mold apparatus for forming a hydrographic tube according to the present invention includes an outer mold 10 assembled to be detachable front and back and right and left, And an inner mold 20 which is made of a resin.

The outer mold 10 includes a rectangular bottom mold 11, a pair of side molds 12 hinged to be rotatable on both sides in the longitudinal direction of the bottom mold 11, And front and rear molds 13 hinged to be rotatable on front and rear sides of the front and rear molds 13, respectively.

Particularly, in the front and rear molds 13, an opening 131 is formed so that the inner mold 20 can enter into the inside of the outer mold 10, And is formed in the same shape as the state in which the receiving plate 23 is coupled to the lower portion of the main core 21 including the core 21. [ A fixing plate 132 protruding from the opening 131 is formed in the same shape as the opening 131 so that the inner mold 20 is bolted to the inner mold 20 ) To the outer mold (10).

The outer mold 10 having the above-described structure is a space in which a concrete mixture, which is a molding material of a water pipe, is introduced as a metal material and is a technology element widely used in molding apparatuses for molding an existing water pipe. It will be omitted.

3 to 7, the inner mold 20 includes a main core 21, which has a receiving plate 23 at its lower portion and a plurality of fixing brackets 211 formed at both lower ends thereof at regular intervals, And an inner diameter adjusting unit 22 for adjusting the inner diameter of the main core 21.

The main core 21 includes a core body 212 having a hemispherical cross section and a plurality of brackets 213 formed on the inner circumferential surface of the core body 212 at regular intervals and having a plurality of cut- ).

The core body 212 has a structure in which a lower portion thereof is opened, and an extension piece 212a is formed at both lower ends of the core body 212 so as to be bent inwardly downwardly inclined. The support plate 23 coupled to the lower end of the core body 212 is formed with extension pieces 232 that are bent at upwardly inclined outsides at both ends so as to correspond to the extension pieces 212a of the core body 212 . Therefore, the bolts are fastened and coupled with the extension piece 212a of the core body 212 while the extension piece 212a of the core body 212 is inserted into the extension piece 232 of the receiving plate 23.

The bracket 213 is formed in the same shape as the inner circumferential surface of the core body 212 to prevent deformation of the core body 212. Particularly, the cutout 213a formed in the bracket 213 includes at least one It is preferable that it is formed in a number. The cutout portion 213a guides the inner diameter of the bracket 213 to be deformed according to the operation of the inner diameter adjusting unit 22 when the inner diameter of the inner mold 20 is cut.

A support frame 231 in the form of a rectangular frame with a plurality of openings 231a formed in the upper portion of the support plate 23 is extended in the longitudinal direction and a handle 223a is provided at one end of the support frame 231 And the bearing block 231b, to which the formed rotary shaft 223 is rotatably supported, is fixed to the front and rear sides, respectively.

The support frame 231 supports a hinge bracket 221 hinged to the fixing bracket 211 with a height corresponding to the height of the fixing bracket 211 and has an opening formed in the upper portion of the supporting frame 231 231a, a lower portion of the guide 225 to be described later is inserted.

It is preferable that the inner diameter adjusting unit 22 is provided in plural in front of and behind the receiving plate 23 so that the inner mold 20 can be easily separated.

The inner diameter adjusting unit 22 includes a pair of moving members 222 which are coupled to the hinge bracket 221 hinged to the fixing bracket 211 and are linearly reciprocated so as to intersect with each other, And an operating member 224 attached to the rotating shaft 223 arranged in a direction orthogonal to the moving direction of the moving member 222.

The moving member 222 is configured to be reciprocated linearly reciprocally in the main core 21 at the same time as the operation member 224 rotates.

The operating member 224 is engaged with the rack, and is composed of a pinion which rotates in conjunction with the rotation of the rotating shaft 223 to make the rack linearly reciprocate right and left.

Particularly, the pair of racks includes an upper rack 222a positioned at an upper portion with respect to the pinion and a lower rack 222b positioned at a lower portion of the pinion. The upper rack 222a has gears formed on the lower surface thereof And the lower rack 222b is meshed with the pinion by forming a gear on the upper surface thereof.

A hinge bracket 221 bolted to one end of the upper rack 222a is hinged to a fixing bracket positioned on the left side of a fixing bracket 211 formed at an inner lower end of the main core 21, The hinge bracket 221, which is bolted to one end of the rack 222b, is hinged to a fixing bracket positioned on the right side of the fixing bracket 211 formed on the inner bottom of the main core 21.

Therefore, when the upper rack 222a is moved forward and the tip of the lower rack 222b is moved backward, the tip of the tip is engaged with the pinion. When the upper rack 222a is moved backward, The upper rack 222a and the lower rack 222b can be reciprocated in a linear reciprocating motion by being positioned so as to be meshed with the pinion when moved, and the inner diameter of the main core 21 is reduced while being separated from the upper rack 222b .

On the other hand, a pair of guides 225 including a plurality of rotary rollers 225a rotatably installed to guide the movement of the rack are coupled to the outside of the rotary shaft 223. The guide 225 may be coupled with a bearing that supports the rotation shaft 223 in the longitudinal direction and rotatably supports the rotation shaft 223.

A pinion is positioned between the pair of guides 225. An upper rack 222a is positioned at an upper portion of the pinion and a lower rack 222b is positioned at a lower portion of the pinion. To guide the movement of the upper rack 222a and the lower rack 222b.

Hereinafter, the assembled state and operation of the mold apparatus for forming a water pipe according to the present invention will be described.

First, a pair of side molds 12 lying on the bottom of the outer mold 10 and the front and rear molds 13 are rotated and fixed in the vertical direction, and then an outer mold 10 having a rectangular shape is prepared.

After the inner mold 20 is inserted through the opening 131 of the outer mold 10, the front and rear ends of the inner mold 20 coincide with the fixing plate 132 formed on the front and rear molds 13 of the outer mold 10 And the inner mold 20 is fixed to the outer mold 10 by fastening the bolts in one state. At this time, the inner mold 20 couples the receiving plate 23 having the main core 21 and the inner diameter adjusting unit 22 to each other and the hinge bracket 221 of the inner diameter adjusting unit 22 to the main core 21, Is inserted into the outer mold (10) while being hinged to the fixing bracket (211) of the outer mold (10).

The concrete mixture is injected into the device under the condition that the assembly of the mold for forming the channel is completed, and the concrete is cured for a predetermined time.

When concrete curing is completed, the inner diameter adjusting unit 22 is operated to separate the inner mold 20.

That is, when the handle 223a formed on the rotary shaft 223 is operated, the rotary shaft 223 rotates, and the pinion, which is the operation member 224, rotates about the rotary shaft 223.

At the same time, the upper rack 222a meshed with the upper portion of the pinion advances to the right, and the lower rack 22b meshed with the lower portion of the pinion is reciprocated to the left, thereby reciprocating in a straight line.

The left surface of the main core 21 coupled with the upper rack 222a side is reciprocated linearly so that the upper rack 222a and the lower rack 22b intersect each other with the pinion as the center, And the right side surface of the main core 21 coupled with the lower rack 222b side is pulled along the moving direction of the lower rack 222b so that the inner diameter of the main core 21 is reduced.

Thus, the inner diameter of the main core 21 is reduced and the inner mold 10 is demoulded and separated from the formed water pipe. The inner mold 20 is drawn out to the outside through the opening 131 of the outer mold 10 and the side mold 12 and the front and rear molds 13 of the outer mold 10 are disassembled, To obtain the product of the water pipe.

As described above, the metal mold for forming a pipe according to the present invention can be easily separated from the inner mold located inside the outer mold, It is possible to assemble and separate without using it, which is advantageous in workability.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art without departing from the scope of the invention.

10: Outside mold
11: Floor mold
12: Side mold
13: Front and rear molds
131:
132: Fixing plate
20: Inner mold
21: Main core
211: Fixing bracket
212: core body, 212a: extension piece
213: bracket, 213a: incision
22: inner diameter adjusting unit
221: Hinge bracket
222: moving member, 222a: upper rack, 222b: lower rack
223: rotating shaft, 223a: handle
224:
225: guide, 225a: rotating roller
23:
231: support frame, 231a: opening, 231b: bearing block
232: Extension piece

Claims

An outer mold (10) which is detachably assembled in the front, rear and left and right directions, and an inner mold (20) inserted in the outer mold (10) so as to be removable,
The inner mold 20 includes a main core 21 to which a receiving plate 23 is coupled at a lower portion and a plurality of fixing brackets 211 are formed at both lower ends of the inner bottom at regular intervals, A pair of moving members 222 which are coupled to the hinge bracket 221 hinged to the fixing bracket 211 so as to cross each other and are reciprocated so as to cross each other, And an operating member (224) coupled to a rotating shaft (223) arranged in a direction perpendicular to the moving direction of the member (222);
The main core 21 includes a core body 212 having a hemispherical cross section and a plurality of brackets 213 formed on the inner circumferential surface of the core body 212 at regular intervals and having a plurality of cut- ) Of the metal mold (2).

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The method according to claim 1,
A support frame 231 in the form of a rectangular frame with a plurality of openings 231a formed in the upper portion of the support plate 23 is extended in the longitudinal direction and a handle 223a is provided at one end of the support frame 231 And a bearing block (231b) rotatably supported by the rotary shaft (223) is fixed to the front and rear sides, respectively.

The method according to claim 1,
The movable member 222 is configured to be linearly reciprocated right and left simultaneously with the rotation of the actuating member 224 in the main core 21. The actuating member 224 is meshed with the rack, 223), and a pinion for reciprocating the rack in a linear reciprocating manner to the left and right.

5. The method of claim 4,
Wherein a pair of guides (225) including a plurality of rotating rollers (225a) provided rotatably to guide the movement of the rack are coupled to the outside of the rotating shaft (223).