CN201179703Y

CN201179703Y - Improved plough groove type tube union seal ring vulcanizing mould

Info

Publication number: CN201179703Y
Application number: CNU2008200190326U
Authority: CN
Inventors: 王文增
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-14
Filing date: 2008-03-14
Publication date: 2009-01-14
Anticipated expiration: 2018-03-14

Abstract

The utility model discloses an improved vulcanized die of a groove-type pipe joint sealing ring. Corresponding binding faces of an upper die body, a middle die body, a lower die body and a core die body of the vulcanized die are bound to form an enclosed die cavity of the groove-type pipe joint sealing ring, the lower die body and the middle die body are integrated into a whole or are fixedly connected with each other; the vulcanized die also comprises a guide part fixedly connected with the core die body or integrated with the core die body into a whole, the guide part is slidably sleeved inside a guide hole of the upper die body, and the upper end part of the guide part is provided with a caging device; and the lower die body and the middle die body are integrated into a whole or are fixedly connected with each other. The improved vulcanized die of the groove-type pipe joint sealing ring is quick and convenient to operate, solves the problems of spending overmuch process time of the prior art when the middle die body and the core die body require assembly and disassembly in processes of loading and unloading, improves operation efficiency of a vulcanizing machine and reduces heat energy loss.

Description

The sulfurizing mould of the plough groove type pipe joint seal ring of improvement

Technical field

The utility model relates to technical field of vulcanized, relates 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 in the utility model is: the sulfurizing mould that a kind of plough groove type pipe joint seal ring of improvement is provided, process time expend long technical problem to solve when charging and the discharging, this mould structure is simple, easy to use, improve the operating efficiency of vulcanizer, reduced heat energy loss.

For solving the problems of the technologies described above, the technical solution of the utility model is: the sulfurizing mould of the plough groove type pipe joint seal ring of improvement comprises

Be positioned at the upper die body of 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 the core block that is positioned at the inboard, 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, also comprise the guide part of fixedlying connected with core block or being made as one, described guide part sliding sleeve is in the pilot hole of described upper die body; Be arranged at the stopping means of the upper end of described guide part; Described lower mold body is made as one with middle die body or fixedlys connected.

Wherein, described stopping means is back-up ring, flange or column protruding part.

Wherein, the pilot hole of described upper die body is a shoulder hole.

Wherein, described upper die body and/or lower mold body are respectively equipped with the venthole that radially connects.

After having adopted technique scheme, the beneficial effects of the utility model are: 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; Owing to also comprise the guide part of fixedlying connected with core block or being made as one, described guide part sliding sleeve is in the pilot hole of described upper die body, stopping means is arranged at the upper end of described guide part, therefore, during discharging, by applying axial force, make upper die body and lower mold body move toward one another, under the effect of gravity, core block and guide part can move down along the pilot hole of upper die body, when upper die body and corresponding binding face axial separation to the sealing ring after the moulding can be taken out apart from the time, stopping means can prevent upper die body and guide part disengagement, the sealing ring of operator after with moulding takes off from core block and gets final product.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.When the pilot hole of upper die body was shoulder hole, described stopping means for example back-up ring, flange or column protruding part just formed fixing structure with the shoulder of shoulder hole, can effectively shorten the axial length of guide part like this, saved cost, and was convenient to install.

Because described upper die body and/or lower mold body are respectively equipped with the venthole that radially connects, during sulfuration, the gas that produces in the plough groove type pipe joint seal ring die cavity can be discharged from venthole, has improved yield rate.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Longitudinal sectional view when Fig. 1 is the utility model first embodiment matched moulds;

Longitudinal sectional view when Fig. 2 is the utility model first embodiment die sinking;

Longitudinal sectional view when Fig. 3 is the utility model second embodiment matched moulds;

Longitudinal sectional view when Fig. 4 is the utility model second embodiment die sinking;

The specific embodiment

First embodiment: as shown in Figure 1, 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.

Guide part 41 is fixedlyed connected with core block 4 or is made as one, and described guide part 41 sliding sleeves are in the pilot hole of described upper die body 1, and the pilot hole of described upper die body 1 is a shoulder hole, and the upper end of described guide part 41 is provided with back-up ring 5a.

During sulfuration, the gas that can produce to some extent in the plough groove type pipe joint seal ring die cavity, too much gas can influence yield rate, therefore, described upper die body 1 and lower mold body 3 be respectively equipped with radially connect on venthole 11 and lower production well 31.

During discharging, as shown in Figure 2, by applying axial force, upper die body 1 and lower mold body 2 move toward one another, under the effect of gravity, core block 4 also can be left certain distance with upper die body 1, this distance should guarantee to be convenient to the sealing ring after the moulding is taken out, at this moment, the back-up ring 5 that is arranged at the upper end of described guide part 41 blocks the shoulder of shoulder hole, thereby prevents upper die body 1 and guide part 41 disengagements.After taking out sealing ring, the raw material bar is wrapped in the sealing ring die cavity of mould, matched moulds up and down can carry out next working cycles then.

Second embodiment: as shown in Figure 3 and Figure 4, basic identical with first embodiment, its difference is, the pilot hole of described upper die body 1 is the through hole of an equal diameter, that the upper end of described guide part 41 is provided with is flange 5b, so, with respect to first embodiment, the axial length of guide part 41 will correspondingly extend.

The utility model is not limited to above-mentioned embodiment, for example back-up ring 5a or flange 5b, its essence is a stopping means, 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, this stopping means plays the effect that prevents that upper die body and guide part from throwing off, and provides convenience for taking out sealing ring.From this purpose, adopting column protruding parts such as alignment pin or screw also is that those of ordinary skills can expect.

The utility model operation is fast and convenient, has overcome known technology when charging and discharging, and middle die body 2 and core block 4 all need dismounting, expend the problem of too much process time, have improved the operating efficiency of vulcanizer, have reduced heat energy loss.

Claims

1, the sulfurizing mould of Gai Liang plough groove type pipe joint seal ring comprises

Be positioned at the upper die body (1) of 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, it is characterized in that: also comprise

Fixedly connected with core block (4) or be made as the guide part (41) of one, described guide part (41) sliding sleeve in the pilot hole of described upper die body (1),

Be arranged at the stopping means of the upper end of described guide part (41),

Described lower mold body (3) is made as one with middle die body (2) or fixedlys connected.

2, the sulfurizing mould of the plough groove type pipe joint seal ring of improvement as claimed in claim 1 is characterized in that: described stopping means is back-up ring, flange or column protruding part.

3, the sulfurizing mould of the plough groove type pipe joint seal ring of improvement as claimed in claim 2 is characterized in that: the pilot hole of described upper die body (1) is a shoulder hole.

4, as the sulfurizing mould of the plough groove type pipe joint seal ring of described any improvement of claim 1 to 3, it is characterized in that: described upper die body (1) and/or lower mold body (3) are respectively equipped with the venthole that radially connects.