CN201493438U

CN201493438U - Integral valve body welding module of cutoff valve and shaping die thereof

Info

Publication number: CN201493438U
Application number: CN2009201909302U
Authority: CN
Inventors: 沈汉民; 王汉敏; 李勇; 吴雪生
Original assignee: WENZHOU ZHANCHENG VALVE CO Ltd
Current assignee: WENZHOU ZHANCHENG VALVE CO Ltd
Priority date: 2009-08-06
Filing date: 2009-08-06
Publication date: 2010-06-02
Anticipated expiration: 2019-08-06

Abstract

The utility model relates to an integral valve body welding module of a cutoff valve and a shaping die thereof, which mainly solves the technical problems of casting flash caused by a split type valve body welding module and being unbeneficial for assembling valve body welding module. The integral valve body welding module is characterized in that a left module body and a right module body are integrated, an insetting case is respectively arranged in two ports of the path of the integral type valve body welding module, the outer end surface of the insetting case is on the same level with the end surfaces on two sides of the valve body welding module, and the outer diameter of the insetting case and the inner wall of the path are attached to form an integral body. The integral valve body welding module changes the manufacturing mode of a traditional valve body welding module, sets the valve body welding module into an integral structure, not only can improve the production benefits of the valve body welding module, but also can simultaneously effectively lower the integral production cost of cutoff valves with small specifications.

Description

A kind of integral type valve body fusible pattern and mould thereof of stop valve

Technical field

The utility model relates to a kind of casting mould, relates to a kind of integral type valve body fusible pattern and mould thereof of stop valve in particular, is mainly used in the casting field of valve.

Background technology

Therefore investment casting, is widely used in the production of small-bore stop valve owing to can obtain high dimension precision and surface smoothness; And in the full form casting process process, must cast the fusible pattern that a usefulness fusible material is made earlier; At present, adopt day valve body latus rectum of the small-bore stop valve that mark is produced mostly to be inside and outside big and outer hole is little greatly, the negotiability of this structured media is big and resistance is little, and can reduce the pressure of body cavity greatly, the overall sealing performance of assurance valve; And because its latus rectum mouth diameter of this valve is littler than the diameter in the latus rectum, cause core rod to extract, therefore, existing domestic valve manufacturer is when making the valve order of this foreign trade, basically all the valve body fusible pattern is made split-type structural, and after making split-type structural, and then left and right sides module adopted heat fusion jig to be pasted together to form one have the little latus rectum of the big external diameter of internal diameter and the valve body of cavity volume, yet; Adopt the valve body fusible pattern of this minute body structure to have following shortcoming:

Surfaces externally and internally in the location for paste when (1), pasting owing to heat fusion jig has a circle to paste line respectively, if outer surface this paste line do not repair or repair the bad outward appearance that has just directly influenced valve body, and that of inner surface to paste line be can't repair owing to the reason of valve body structure at all, so the valve interior surface that comes out of casting just has a casting overlap clearly like this, thereby influenced the attractive in appearance of valve and also reduced the negotiability of valve.

(2), because the heat fusion jig stickup is that employing is manual, secondly, the intensity of wax-pattern is also relatively low, so when left and right wax-pattern is pasted, the deviation ratio of its horizontal and vertical size is bigger, thereby the surface structure and the scrappage that influence whole valve are higher relatively, thereby have directly improved production cost.

(3), adopt split type valve body model casting forming technique, need twice wax-pattern of cast, also relatively long and production technology relative complex of its production cycle like this, secondly, working efficiency is lower, thereby has directly improved production cost.

Summary of the invention

For the fusible pattern that solves existing valve body because the big outer hole of its latus rectum endoporus is little, causing can't the demoulding and then adopt split-type structural, what cause fusible pattern adds the low more high technical problem of integral production cost with valve of technology complexity and working efficiency; The utility model provides a kind of integral type valve body fusible pattern and mould thereof of stop valve, can effectively solve because of the big outer hole of latus rectum endoporus little, causing can't the demoulding, cause fusible pattern add the technology complexity and working efficiency is low and the more high technical problem of integral production cost of valve.

For solving above technical problem, the technical scheme that the utility model is taked is a kind of integral type valve body fusible pattern of stop valve, it includes left and right die body, and this left and right sides die body fits and forms a valve body fusible pattern that has latus rectum and a cavity volume, and the big outer hole of its endoporus of described latus rectum is little; It is characterized in that described left and right die body is an integral structure, in the two-port of described integral type valve body fusible pattern latus rectum, respectively be provided with an edge cover, the outer face of this edge cover is equal with valve body fusible pattern both sides end face, and described edge cover external diameter and latus rectum inwall fit and form an integral body.

Further, to be placed on the end in the latus rectum be bell mouth shape to described edge.

The utility model also relates to a kind of mould of integral type valve body fusible pattern of stop valve, it includes the core rod that forms valve body fusible pattern latus rectum, it is characterized in that described core rod is formed by a primary module and pair module combinations of organizing more, described each group is paid module can also slide card connection with primary module respectively along primary module one end slippage respectively mutually.

Further, described each group is paid on the face that module and primary module fit and is respectively equipped with a dovetail groove, and the left and right and downside of described primary module is corresponding to be provided with the trapezoidal rails that is complementary with each pair module dovetail groove and to lead with its cunning and cooperate.

Further, described left and right module is symmetrical.

The beneficial effects of the utility model are to change the manufacture of traditional valve body fusible pattern and the manufacturing and the withdrawing pattern mode of valve body fusible pattern core rod, and the valve body fusible pattern is made as integral structure, and the core rod of valve body fusible pattern then adopts fabricated structure; Adopt integral type valve body fusible pattern, not only can improve the productivity effect of valve body fusible pattern, simultaneously, also can effectively reduce the integral production cost of small dimension cut-off gate; And employing combination mold core structure, can make full use of the space in the valve body fusible pattern latus rectum, core rod is broken the whole up into parts, can dwindle the volume restrictions of valve body fusible pattern greatly like this to core rod, so not only can effectively solve the little technical problem that is difficult for the demoulding in the big outer hole of latus rectum endoporus because of the valve body fusible pattern, also can realize the one cast of valve body fusible pattern simultaneously, improve the productivity effect of fusible pattern cast, reduce the integral production cost of valve.

Description of drawings

Fig. 1 is the sectional structure chart of the integral type valve body fusible pattern of a kind of stop valve of the utility model

Fig. 2 is the amplification sectional structure chart of edge cover among the utility model embodiment

Fig. 3 is the core rod master TV structure figure of mould of the integral type valve body fusible pattern of a kind of stop valve of the utility model

Fig. 4 is the core rod plan structure figure of mould of the integral type valve body fusible pattern of a kind of stop valve of the utility model

Fig. 5 is an A-A place sectional structure chart among Fig. 5

Fig. 6 is the main TV structure figure of primary module among the utility model embodiment

Fig. 7 is the main TV structure figure of right module among the utility model embodiment

Fig. 8 is the main TV structure figure of lower module among the utility model embodiment

Specific embodiments

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

Extremely shown in Figure 2 as Fig. 1, the integral type valve body fusible pattern of a kind of stop valve of the utility model, it includes left and right die body, and this left and right sides die body fits and forms a valve body fusible pattern 1 that has latus rectum 11 and a cavity volume 12, and big its outer bore dia of described latus rectum 11 its diameter of bores is less relatively; Little for big its outer hole of diameter of bore that solves existing valve body fusible pattern 1 latus rectum 11, causing can't the demoulding, cause valve body fusible pattern 1 add the technology complexity and processing benefit is lower and the integral production cost technical problem of raising valve; A described left side, right die body is an integral structure, for convenient conveniently stripped when the production integral type valve body fusible pattern 1, in the two-port of described integral type valve body fusible pattern 1 latus rectum 11, respectively be provided with an edge cover 2, the outer face of this edge cover 2 is equal with valve body fusible pattern 1 both sides end face, described edge overlaps 2 external diameters and 11 mouthfuls of inwalls of latus rectum and fits and form an integral body, one edge cover 2 is set, when valve body fusible pattern 1 is produced, can dwindle the gap of latus rectum 11 inner and outer diameter, thereby the smooth demoulding when farthest guaranteeing cast valve body fusible pattern 1, after the demoulding is finished, will inlay cover 2 again and snap in the latus rectum 11 of valve body fusible pattern 1, just can form the little latus rectum 1 in the big outer hole of an endoporus; Adopt this integral type valve body fusible pattern 1 structure, can effectively solve the high technical problem of scrappage that causes when adopting casting overlap that split type fusible pattern produces and hand paste; Secondly, change the full form casting process of small dimension stop valve traditionally, so not only can improve the productivity effect of valve body fusible pattern 1, simultaneously, also can effectively reduce the integral production cost of small dimension cut-off gate.

In the present embodiment, for making things convenient for the circulation of medium, it is bell mouth shape that described edge cover 2 places the end in the latus rectum 11, adopts this trumpet-shaped outlet, the resistance in the time of can effectively reducing the medium circulation, and the negotiability of raising medium reduces resistance; Certainly, also can not adopt bell mouth shape, such as adopt square, can reach identical purpose equally, but owing to adopt rectangular shaped, its resistance is relatively large, therefore, the embodiment of present embodiment is a preferred implementation.

For making things convenient for the processing and manufacturing of integral type valve body fusible pattern 1, optimize its processing technology, improve its processing benefit, reduce its processing cost, extremely shown in Figure 8 as Fig. 3, the utility model also relates to a kind of mould of integral type valve body fusible pattern 1 of stop valve, it includes the core rod 3 that forms fusible pattern latus rectum 11, for solve because of the big outer hole of the endoporus of valve body fusible pattern 1 latus rectum 11 little, cause valve body fusible pattern 1 when cast, to be difficult for technical problems such as the demoulding, described core rod 3 is paid module 32 by a primary module 31 and many groups and is combined, described each group is paid module 32 can also slide card connection with primary module 31 respectively along primary module 31 1 end slippages respectively mutually, described sliding card connection be meant pay module 32 can be along primary module 31 1 end horizontal slips, and the matching relationship of axial restraint.Adopt this combination mold core, can make full use of the space in valve body fusible pattern 1 latus rectum 11, core rod 3 is broken the whole up into parts, can dwindle the volume restrictions of 11 pairs of core rods 3 of valve body fusible pattern 1 latus rectum so greatly, when the demoulding, earlier primary module 31 is taken out, because each pair module 32 cooperates with primary module 31 sliding cards, when primary module 31 takes out, each pair module 32 is separated with primary module 31 thereupon, and then respectively each group is paid module 32 upsets or adjustment angle and just can take out, adopt this mode, can effectively solve the little technical problem that is difficult for the demoulding in the big outer hole of latus rectum 11 endoporus because of valve body fusible pattern 1, thereby can realize the one cast of valve body fusible pattern 1, improve the productivity effect of valve body fusible pattern 1 cast, reduce the integral production cost of valve.

In the present embodiment, owing to consider the actual needs of the demoulding and make things convenient for form removal, it is left and right module 321 and lower module 322 that described pair of module 32 is provided with three components, and left and right module 321 and lower module 322 are respectively at the corresponding left and right sideslip card connection down that reaches on the primary module 31, to pay module 32 and be made as three groups, can farthest reduce the volume of core rod 3 like this, make things convenient for extracting smoothly of each module, simultaneously, also can make things convenient for the processing of core rod 3 and working efficiency when improving form removal; Certainly, also can be made as more groups with paying module 32, such as five groups or eight groups, can reach identical purpose equally, but more overpay the working efficiency that module 32 can influence the processing and the form removal of core rod 3 owing to be provided with, therefore, the embodiment of present embodiment is a preferred implementation.

In the present embodiment, for making things convenient for a primary module 31 and a left side, the assembling of right module 321 and lower module 322, a described left side, be respectively equipped with a dovetail groove 3211 on the face that right module 321 and lower module 322 and primary module 31 fit, the left side of described primary module 31, the right side and downside thereof be corresponding to be provided with the trapezoidal rails 311 that is complementary with dovetail groove 3211 and to cooperate with its sliding leading, adopt the fit system of dovetail groove 3211 and trapezoidal rails 311, not only can realize a left side, right module 321 and lower module 322 are along the horizontal sliding of primary module 31, simultaneously, also can realize and a left side, the axial restraint of right module 321 and lower module 322 and primary module 31, prevent and a left side, endwisely slipping of right module 321 and lower module 322, thereby the stability when improving 1 cast of valve body fusible pattern and the assembling benefit of core rod 3; Certainly, also can not adopt dovetail groove 3211 structures, such as adopt the open slot of 3/4ths circle shapes, can reach identical purpose equally, but owing to adopt dovetail groove 3211 structures, convenient processing, therefore, the embodiment of present embodiment is a preferred implementation.

In the present embodiment, be the processing of convenient left and right module 321, improve processing benefit, described left and right module 321 is symmetrical.

The foregoing description should not be considered as restriction of the present utility model, but any improvement of doing based on spirit of the present utility model, all should be within protection domain of the present utility model.

Claims

1. the integral type valve body fusible pattern of a stop valve, it includes left and right die body, and this left and right sides die body fits and forms a valve body fusible pattern that has latus rectum and a cavity volume, and the big outer hole of its endoporus of described latus rectum is little; It is characterized in that described left and right die body is an integral structure, in the two-port of described integral type valve body fusible pattern latus rectum, respectively be provided with an edge cover, the outer face of this edge cover is equal with valve body fusible pattern both sides end face, and described edge cover external diameter and latus rectum inwall fit and form an integral body.

2. the integral type valve body fusible pattern of a kind of stop valve according to claim 1 is characterized in that the end that described edge is placed in the latus rectum is a bell mouth shape.

3. the mould of the integral type valve body fusible pattern of a kind of stop valve according to claim 1, it includes the core rod that forms valve body fusible pattern latus rectum, it is characterized in that described core rod is formed by a primary module and pair module combinations of organizing more, described each group is paid module can also slide card connection with primary module respectively along primary module one end slippage respectively mutually.

4. the mould of the integral type valve body fusible pattern of a kind of stop valve according to claim 3, it is characterized in that it is left and right and lower module that described pair of module is provided with three components, and left and right and lower module is respectively at corresponding left and right and sideslip card connection down on the primary module.

5. the mould of the integral type valve body fusible pattern of a kind of stop valve according to claim 4, it is characterized in that described each group is paid on the face that module and primary module fit is respectively equipped with a dovetail groove, and the left and right and downside of described primary module is corresponding to be provided with the trapezoidal rails that is complementary with each pair module dovetail groove and to lead with its cunning and cooperate.

6. the mould of the integral type valve body fusible pattern of a kind of stop valve according to claim 5 is characterized in that described left and right module is symmetrical.