CN101186087B

CN101186087B - Vulcanizing mold of plough groove type pipe joint seal ring

Info

Publication number: CN101186087B
Application number: CN200610070229A
Authority: CN
Inventors: 王文增
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-11-17
Filing date: 2006-11-17
Publication date: 2010-05-12
Anticipated expiration: 2026-11-17
Also published as: CN101186087A

Abstract

The invention discloses the sulfuration die of a trough-shaped pipe joint sealing ring, with the corresponding attached surfaces of an upper die body, a middle die body, a lower die body and a core die body being attached to form an enclosed trough-shaped pipe joint sealing ring chamber. The lower die body and the middle die body are integrated or fixedly connected; the upper die body is provided with an axial guide part; the core die body can axially and movably sleeved on the axial guide part; the invention also comprises a dropping-proof device arranged between the upper die body and the core die body which can prevent the disconnection between the upper die body and the core die body when the corresponding attached surfaces of the two are axially disconnected to the distance by which the formed sealing ring can be removed, and a clamping device which can keep the attaching state between the corresponding attached surfaces of the upper die body and the core die body when attaching. The invention has the advantages of fast and simple operation, overcoming the problem that excessive processing time is consumed because both of the middle die body and the core die body are required to be assembled and disassembled when loading and unloading by the prior art, improving the working efficiency of sulfuration machine, and reducing heat loss.

Description

The sulfurizing mould of plough groove type pipe joint seal ring

Technical field

The present invention relates to technical field of vulcanized, relate in particular to a kind of sulfurizing mould that is used for plough groove type pipe joint seal ring.

Background technology

Now water supply pipe, gas piping and fire protection pipeline usually adopt plough groove type pipe joint to connect, and its method is the joint that sealing ring is set in two pipes, then with pipe collar with its banding.Because this method need not the machining screw at the pipe joint place, connect fast and good sealing effect, thereby obtained using widely in the pipeline installing area.

Plough groove type pipe joint seal ring processes by sulfuration process with mould on vulcanizer, known sulfurizing mould comprises the upper die body that is positioned at outer upper, be arranged in the die body of outer middle side part, be positioned at the lower mold body of outer lower portion, and being positioned at inboard core block, the corresponding binding face of described upper die body, middle die body, lower mold body and core block is fitted and is formed the plough groove type pipe joint seal ring die cavity of sealing.Technical process is as follows: the first step is charging, and middle die body and lower mold body are merged, and then the raw material bar is wrapped in the sealing ring die cavity, puts core block, puts upper die body again, pushes in the vulcanizer heating plate with the handgrip mould; Second step was a matched moulds, and heating plate moves upward at the drive lower edge of hydraulic cylinder guide rail, until with the corresponding binding face pressing of upper die body; The 3rd step was sulfuration, by electric heating body sulfurizing mould heated, and the insulation certain hour; The 4th step was die sinking, and heating plate moves downward at the drive lower edge of hydraulic cylinder guide rail, made heating plate and following heating plate leave certain unlatching distance up and down; The 5th step was discharging, at first mould was taken out together, then upper and lower die body was separated with sealing ring after the moulding, and therefrom die body takes out sealing ring and core block, at last sealing ring is taken out from core block.By above-mentioned processing step as can be seen, this split type sulfurizing mould is more loaded down with trivial details when charging and discharging, and the process time is longer, also hinders the workman easily, thereby has reduced operating efficiency, has increased heat energy loss.

Summary of the invention

Technical problem to be solved by this invention is: the sulfurizing mould that a kind of plough groove type pipe joint seal ring is provided, process time expend long technical problem to solve when charging and the discharging, this mould structure is simple, and is easy to use, improve the operating efficiency of vulcanizer, reduced heat energy loss.

For solving the problems of the technologies described above, technical scheme of the present invention is: the sulfurizing mould of plough groove type pipe joint seal ring, comprise the upper die body that is positioned at outer upper, be arranged in the die body of outer middle side part, be positioned at the lower mold body of outer lower portion, and be positioned at inboard core block, and the corresponding binding face of described upper die body, middle die body, lower mold body and core block is fitted and is formed the plough groove type pipe joint seal ring die cavity of sealing, and described lower mold body is made as one with middle die body or fixedlys connected; Described upper die body is provided with axially directed portion, and core block can be sheathed on described axially directed portion with moving axially; It also comprise be arranged between described upper die body and the core block, when the corresponding binding face axial separation of upper die body and core block to the sealing ring after the moulding can be taken out apart from the time, prevent the anti-drop device that both throw off its, and both keep the positioner of fit-state can to make it when the corresponding binding face applying of upper die body and core block;

Wherein, described anti-drop device comprises the locking member of the axially directed portion that is installed on described core block, and described locking member has the limiting section of the outer peripheral face that extends radially out described axially directed portion; Described core block is provided with a spacing hole greater than the pilot hole of core block, and the outer peripheral face of the axially directed portion of described upper die body and the spacing hole of described core block form limit chamber; The limiting section of described locking member stretches in the described limit chamber;

Wherein, described positioner comprises the annular groove of the spacing hole inner peripheral surface that is arranged at described axially directed portion, and described annular groove is corresponding with respect to the maximum axial separating distance of core block to the axial distance and the upper die body of the shoulder of limit chamber; The limiting section of described locking member has and the suitable head of described annular groove shaped; The axially directed portion of described upper die body is provided with radial hole, and described locking member is movably installed in described radial hole; Described positioner also comprises the spring that is installed in the described radial hole, with the adjustment screw that is connected with the end thread of described radial hole.

After having adopted technique scheme, the invention has the beneficial effects as follows: because described lower mold body is made as one with middle die body or fixedlys connected; So when charging and discharging, need not die body in the mounting or dismounting; Because described upper die body is provided with axially directed portion, core block can be sheathed on described axially directed portion with moving axially; It also comprise be arranged between described upper die body and the core block, when the corresponding binding face axial separation of upper die body and core block to the sealing ring after the moulding can be taken out apart from the time, prevent the anti-drop device that both throw off its, and both keep the positioner of fit-state can to make it when the corresponding binding face of upper die body and core block is fitted, therefore, when filling with substance, only need to promote core block, the head of the limiting section of limit body is snapped in the annular groove, and the elastic force of spring can make it both kept the clamping state this moment; During discharging, by applying extra axial opening force, make the head of the limiting section of limit body break away from clamping with annular groove, and upper die body and core block are relatively moved leave certain distance, the limiting section of limit body will slide to the shoulder of limit chamber and block at this moment, both can not throw off connection thereby make it, the sealing ring after the moulding are taken off from core block to get final product then.This sulfurizing mould is simple in structure easy to use, has saved the time of charging and discharging, thereby has improved the operating efficiency of vulcanizer, has reduced heat energy loss.The present invention can also pass through the turn-knob adjustment screw, comes the reduction length of regulating spring, and then regulates the size of the elastic force that makes upper die body and core block maintenance clamping state, makes this mould be more convenient for using.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Cutaway view when Fig. 1 is embodiment of the invention matched moulds;

Cutaway view when Fig. 2 is embodiment of the invention die sinking;

Fig. 3 is the partial enlarged drawing at A place among Fig. 1;

Fig. 4 is a kind of cutaway view of sulfurizing mould of known plough groove type pipe joint seal ring.

The specific embodiment

Fig. 1 shows the cutaway view of one embodiment of the present of invention when matched moulds.As shown in figures 1 and 3, it comprises the upper die body 1 that is positioned at outer upper, be arranged in the die body 2 of outer middle side part, be positioned at the lower mold body 3 of outer lower portion, and the core block 4 that is positioned at the inboard, the corresponding binding face of described upper die body 1, middle die body 2, lower mold body 3 and core block 4 is fitted and is formed the plough groove type pipe joint seal ring die cavity of sealing, described lower mold body 3 is fixedlyed connected with middle die body 2, certainly, lower mold body 3 also can be made as one with middle die body 2, its objective is to need not die body 2 in the mounting or dismounting when charging and discharging.

Described upper die body 1 is provided with axially directed 11, and core block 4 can be sheathed on described axially directed 11 with moving axially; Axially directed 11 of described upper die body 1 is provided with radial hole, locking member 51 is movably installed in described radial hole, spring 52 is installed in the described radial hole, adjustment screw 53 is connected with the end thread of radial hole. and described core block 4 is provided with a spacing hole greater than the pilot hole of core block, axially directed 11 the outer peripheral face of described upper die body and the spacing hole of described core block form the locking member 51 described in the limit chamber 4a. present embodiment and are made of a multidiameter, the relatively little axle journal of described multidiameter constitutes the limiting section of locking member, the big relatively axle journal of described multidiameter constitutes the radially-directed portion of locking member, the radially-directed portion of described locking member is arranged in the radial hole of axially directed portion of upper die body, the limiting section of described locking member 51 stretches in the described limit chamber 4a. and described axially directed 11 spacing hole inner peripheral surface is provided with annular groove, and described annular groove is corresponding with respect to the maximum axial separating distance of core block 4 to the axial distance and the upper die body 1 of the shoulder of limit chamber 4a; The limiting section of described locking member 51 has and the suitable head of described annular groove shaped, and this head can be made hemispherical, also can be other shape of being convenient to realize clamping and breaking away from clamping.

When filling with substance as shown in Figure 1, promotes core block 4, and the core block 4 and the corresponding binding face of upper die body 1 are fitted, and the head of the limiting section of limit body snaps in the annular groove at this moment, and the elastic force of spring makes it, and both keep the clamping state.

During discharging, as shown in Figure 2, by applying extra axial opening force, make the head of the limiting section of limit body 51 break away from clamping with the annular groove of the spacing hole inner peripheral surface of core block, and make that upper die body 1 and core block 4 are relative leaves certain distance, this distance should guarantee to be convenient to the sealing ring after the moulding is taken out, this moment limit body 51 limiting section will slide to core block limit chamber shoulder and block, upper die body can not thrown off with core block be connected, the sealing ring after the moulding is taken off from core block get final product then.

The present invention compares with the sulfurizing mould of a kind of known plough groove type pipe joint seal ring shown in Fig. 4, operate more fast and convenient, overcome known technology when charging and discharging, middle die body 2 and core block 4 all need dismounting, expend the problem of too much process time, improve the operating efficiency of vulcanizer, reduced heat energy loss.

Claims

1. the sulfurizing mould of plough groove type pipe joint seal ring, comprise the upper die body (1) that is positioned at outer upper, be arranged in the die body (2) of outer middle side part, be positioned at the lower mold body (3) of outer lower portion, and the core block (4) that is positioned at the inboard, the corresponding binding face of described upper die body (1), middle die body (2), lower mold body (3) and core block (4) is fitted and is formed the plough groove type pipe joint seal ring die cavity of sealing, and it is characterized in that: described lower mold body (3) is made as one with middle die body (2) or fixedlys connected; Described upper die body (1) is provided with axially directed (11), and core block (4) can be sheathed on described axially directed (11) with moving axially; It also comprise be arranged between described upper die body (1) and the core block (4), when the corresponding binding face axial separation of upper die body (1) and core block (4) to the sealing ring after the moulding can be taken out apart from the time, prevent the anti-drop device that both throw off its, and both keep the positioner of fit-state can to make it when the corresponding binding face applying of upper die body (1) and core block (4);

Described anti-drop device comprises the locking member (51) of axially directed (11) being installed on described core block, and described locking member (51) has the limiting section of the outer peripheral face that extends radially out described axially directed (11); Described core block (4) is provided with a spacing hole greater than the pilot hole of core block, and the outer peripheral face of axially directed (11) of described upper die body and the spacing hole of described core block form limit chamber (4a); The limiting section of described locking member (51) stretches in the described limit chamber (4a);

Described positioner comprises the annular groove of the spacing hole inner peripheral surface that is arranged at described axially directed (11), and described annular groove is corresponding with respect to the maximum axial separating distance of core block (4) to the axial distance and the upper die body (1) of the shoulder of limit chamber (4a); The limiting section of described locking member (51) has and the suitable head of described annular groove shaped; Axially directed (11) of described upper die body (1) are provided with radial hole, and described locking member (51) is movably installed in described radial hole; Described positioner also comprises the spring (52) that is installed in the described radial hole, with the adjustment screw (53) that is connected with the end thread of described radial hole.

2. the sulfurizing mould of plough groove type pipe joint seal ring as claimed in claim 1, it is characterized in that: described locking member (51) is made of a multidiameter, the relatively little axle journal of described multidiameter constitutes the limiting section of locking member, the big relatively axle journal of described multidiameter constitutes the radially-directed portion of locking member, and the radially-directed portion of described locking member is arranged in the radial hole of axially directed portion of upper die body.

3. the sulfurizing mould of plough groove type pipe joint seal ring as claimed in claim 2, it is characterized in that: the head of the limiting section of described locking member (51) is hemispherical.