CN2216900Y

CN2216900Y - Suspension roller die tool for prodn. of tubes

Info

Publication number: CN2216900Y
Application number: CN 94236003
Authority: CN
Inventors: 宋锡海; 刘维民
Original assignee: CEMENT PRODUCTS OF WATER CONSERVANCY BUREAU OF QUFU CITY
Current assignee: CEMENT PRODUCTS OF WATER CONSERVANCY BUREAU OF QUFU CITY
Priority date: 1994-12-09
Filing date: 1994-12-09
Publication date: 1996-01-10
Anticipated expiration: 2004-12-09

Abstract

The utility model discloses a suspension roller mould for producing tubes, which is composed of two semicircular moulds and two block rings. The two semicircular moulds are tightly fixed by a fore shaft bolt. The block rings are positioned along the axial direction, wherein, one block ring is a pressing cover type block ring. Ribs arranged along the circumferential direction of the semicircular mould are divided into a plurality of sections along the circumferential direction, and a gap is arranged between the adjacent sections. The position of the gap on each rib and the positions of the gaps of other ribs arranged along the circumferential direction are corresponding along the circumferential direction. A demoulding controlling bolt is connected between the adjacent sections, and the circumferential wall of the semicircular mould is provided with a pyramidal mould which can extend and can retract. The mould can be used for producing cement solid tubes and perforated tubes, the instant demoulding operation can be obtained, the production cost is reduced, and the production efficiency is enhanced.

Description

A kind of overhang roll Pipe making mold

The utility model relates to overhang roll tubulation machinery, and is especially a kind of by two semicircle moulds and two overhang roll Pipe making molds that back-up ring constitutes.

Existing overhang roll tuber is one of present domestic and international widely used tuber, it is with the overhang roll axle of former and later two stent support horizontal positioned, overhang roll axle upper support has the Pipe making mold that is made of two semicircle moulds and former and later two back-up rings, transmission of power makes it rotation for the overhang roll axle, thereby driving Pipe making mold rotates together, cement concrete fills in the space of two semicircle mould inwalls and two back-up rings formation, and mould and concrete rely on deadweight to be pressed on the overhang roll axle, the concrete compacting of rotation back.The structure of this mould is: back-up ring is the full-place back-up ring, be all to place on the whole thickness direction of back-up ring in the inner cylinder face that two semicircle moulds constitute, make the back-up ring axial location by being fixedly installed in the groove that several projectioies in the inner cylinder face or endless belt be stuck in the back-up ring cylindrical, two semicircle moulds be with steel plate be rolled into semicircle and front end and middle and axially on be welded with the rib formation of the reinforcements intensity of using, the fore shaft bolt is set on the side that the semicircle mould connects, two semicircle moulds are close to mouthful bolted together, and two semicircle moulds tighten together and the rear and front end fastening is lived back-up ring and is this mould.The shortcoming of this mould is to be difficult to realize the demoulding immediately, the demoulding immediately after promptly pipe of cement is made, and the yield rate of pipe is very low, the labour intensity height.Reason is: one, back-up ring is the full-place back-up ring, in order to be provided with annular groove in the middle of the axial location, consider intensity simultaneously, causing can not be too little on its thickness direction, when pipe is made the back demoulding, need take away the back-up ring of an end earlier, this end is poured out pipe downwards, because the end face of pipe and the distance that ground differs a back-up ring thickness, pipe is very easy in dropping process is damaged; Its two, the semicircle mould is a rigid mould, when the demoulding, because the effect of moist concrete absorption affinity, two semicircle moulds are difficult to throw off with pipe, labour intensity is big during disengagement, also damages the pipe perisporium easily, is making the large-diameter pipe period of the day from 11 p.m. to 1 a.m, problem is particularly outstanding.When producing the permeable floral tube of well water; the core of pore is to be connected metal knitted online in the pipe or to be connected on the thin type metal tape of being close to mould inner wall; after being shaped, it can't be deviate from by pipe owing to the pipe outside is surrounded by the semicircle mould; after if pipe is deviate from again during the depoling mould; can only under the situation that does not have the protection of semicircle mould, it be pounded out with wooden mallet, so very easily with damaged tubular.For this reason, in actual production, do not use demoulding method immediately, but adopt band mould steam curing method, and the intensity of pipe improves after the maintenance, and absorption affinity reduces, the demoulding easily, but so not only need to make heating equipment, lagging facility, and the mould number of turnover is few, utilization rate is low, equipment investment is big, complex process, the production cost height.

The purpose of this utility model is the defective that overcomes prior art, and a kind of overhang roll Pipe making mold is provided, and can realize the demoulding immediately, has improved production efficiency.

The purpose of this utility model realizes as follows: this overhang roll Pipe making mold relates to two semicircle moulds and two back-up rings, the dual-side that connects at the semicircle mould is provided with the fore shaft bolt, two semicircle moulds by the fore shaft bolted together, two semicircle mould inwalls are formed inner cylinder face, radial support has back-up ring at the two ends of inner cylinder face, the back-up ring axial direction positioning device is set on semicircle mould and back-up ring, its structural feature is: wherein the former full-place back-up ring of an end changes the gland-type back-up ring into, the interior ring outer peripheral face of gland-type back-up ring is supported on the inner cylinder face of semicircle mould, the thickness of ring can be done than the whole thin thickness of full-place back-up ring in gland or the back-up ring like this, and its size that stretches in the semicircle mould reduces.The outer toroid inner face is adjacent on the rib outer face of semicircle mould, and the back-up ring axial direction positioning device is between the rib of gland-type back-up ring and semicircle mould the back-up ring set bolt to be set.

The back-up ring of the other end can be with the gland-type back-up ring of above form, also can use original full-place back-up ring, the axial location of full-place back-up ring, can adopt and originally on semicircle mould inner cylinder face, fixing projection or endless belt are set, back-up ring location pin alive also can be set on the end of semicircle mould, the end points of back-up ring location pin alive is stuck in the annular groove of back-up ring, the back-up ring of can dismantling before and after disengagement semicircle mould like this.

In order to increase the elasticity of semicircle mould, the rib that circumferentially is provided with on the semicircle mould is along being divided into several sections on the circumferential direction, there is a gap between the adjacent segment, the gap that each rib exists on the semicircle mould is corresponding along circumferentially going up the position with the gap of circumferential other rib, the inner cylinder face of semicircle mould still is whole like this, and after its rib is segmenta, the elasticity of semicircle mould has increased, axial inboard at the rib at semicircular body two ends, radial outside, the both sides in gap are provided with boss, the boss on both sides, gap is connected with demoulding control bolt, screw demoulding control bolt, the opening angle of semicircle mould is big, thus easy and the moist pipe demoulding.

For the ease of the permeable floral tube of producing well, semicircle mould perisporium is provided with can be by the cone mould of the extended withdrawal of stretching drive mechanism.

This stretching drive mechanism is made of cone mould chamber, capping and push-pull screw, cone mould chamber is fixed on the semicircle mould periphery wall, can set within it by axially movable cone mould, capping is fixed on the upper end of cone mould chamber, be provided with rotatable in the interstitial hole of capping and the push-pull screw of axial limiting, be provided with screw in the middle of the upper end of cone mould, this screw is connected with the front threads of push-pull screw.

Overhang roll Pipe making mold of the present utility model, the thickness of back-up ring in the semicircle mould is little, when pipe is fallen on the ground, pipe downslide size is little not fragile, change original rigidity semicircle mould into springform, the absorption affinity of moist pipe and mould is little, the demoulding easily, floral tube hole core can be extracted core out under moist pipe state, realize the demoulding immediately of moist pipe like this, reduced the steam curing process, do not accounted for the pressing mold tool, improve production efficiency, reduced cost.

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is the front view of the utility model overhang roll Pipe making mold.

Fig. 2 is the cutaway view of A-A direction on the utility model overhang roll Pipe making mold front view.

With reference to Fig. 1, Fig. 2, the cylindrical of two semicircle moulds 1 vertically and circumferentially is provided with rib, to play reinforcement effect, tight mouthful of bolt 8 is set on the dual-side that semicircle mould 1 connects, semicircle mould 1 is tightened together, two semicircle moulds, 1 inwall is formed inner cylinder face, end at inner cylinder face is supported with back-up ring 5, the other end is supported with gland-type back-up ring 3, ring outer peripheral face is supported on the inner cylinder face in it, and the outer shroud inner face is adjacent on the outer face of rib, and is fixing with back-up ring set bolt 2 between the two, pull out screw 6 being provided with on the rib or on gland-type back-up ring 3 outer shrouds, unscrew to have screwed in inwards behind the back-up ring fixed bolt 2 and pull out screw 6 and gland-type back-up ring 3 can be ejected and take down.Back-up ring location pin 4 alive is set on the other end of semicircle mould 1, and the lower end of back-up ring location pin 4 alive is stuck in the annular groove of back-up ring 5, makes back-up ring 5 axial location.

In order to increase the elasticity of semicircle mould 1, the rib that its week makes progress is the fracture body, be that rib upwards is divided into several sections along week, can be divided into 3 to 5 sections according to the size of caliber, there is a gap between the adjacent segment, each gap is corresponding along the circumferential position of going up with the gap of axially going up other rib, axially boss is set the both sides in inboard, radial outside, gap at rib, and the boss of both sides, gap is connected with demoulding control bolt 7.

For the permeable floral tube of producing well, cone mould 9 is set on the perisporium of semicircle mould 1, its quantity is according to the permeable requirement setting of floral tube, cone mould 9 is placed in the cone mould chamber 11 and can moves axially within it, cone mould chamber 11 is fixed on semicircle mould 1 periphery wall, capping 12 is fixed by bolts to the upper end of cone mould chamber 11, rotating lead-screw 10 is set in the interstitial hole of capping 12, be provided with screw in the middle of the upper end of cone mould 9, this screw is connected with the front threads of push-pull screw 10, and positive and reverse return push-pull screw 10 can make cone mould 9 stretch out, withdraw.

Claims

1, a kind of overhang roll Pipe making mold, relate to two semicircle moulds and two back-up rings, the dual-side that connects at the semicircle mould is provided with the fore shaft bolt, two semicircle mould inwalls are formed inner cylinder face, radial support has back-up ring at the two ends of inner cylinder face, the back-up ring axial direction positioning device is set on semicircle mould and back-up ring, it is characterized in that: wherein the back-up ring of an end is gland-type back-up ring (3), the interior ring outer peripheral face of gland-type back-up ring (3) is supported on the inner cylinder face of semicircle mould (1), the outer shroud inner face is adjacent on the rib outer face of semicircle mould (1), and the back-up ring axial direction positioning device is between the rib of gland-type back-up ring (3) and semicircle mould (1) back-up ring set bolt (2) to be set.

2, overhang roll Pipe making mold according to claim 1, it is characterized in that: the rib that semicircle mould (1) circumferentially is provided with upwards is divided into several sections along week, there is a gap between the adjacent segment, gap on each rib is corresponding along circumferentially going up the position with the gap of other rib that makes progress in week, in the axial inboard of the rib at semicircle mould (1) two ends, the both sides in radial outside, gap are provided with boss, the boss of both sides, gap is connected with demoulding control bolt (7).

3, overhang roll Pipe making mold according to claim 1 and 2 is characterized in that: semicircle mould (1) perisporium is provided with the cone mould (9) by the extended withdrawal of stretching drive mechanism.

4, overhang roll Pipe making mold according to claim 3, it is characterized in that: its stretching drive mechanism is made of cone mould chamber (11), capping (12) and push-pull screw (10), cone mould chamber (11) is fixed on semicircle mould (1) periphery wall, can set within it by axially movable cone mould (9), capping (12) is fixed on the upper end of cone mould chamber (11), the push-pull screw (10) of rotatable and axial limiting is set in the interstitial hole of capping (12), be provided with screw in the middle of the upper end of cone mould (9), this screw is connected with the front threads of push-pull screw (10).