CN1907676A

CN1907676A - Method of producing U-type pipe fitting and core thereof

Info

Publication number: CN1907676A
Application number: CN 200610052975
Authority: CN
Inventors: 孙金军
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-08-16
Filing date: 2006-08-16
Publication date: 2007-02-07
Anticipated expiration: 2026-08-16
Also published as: CN1907676B

Abstract

The invention relates to a method for molding U-shaped tube, which is characterized in that: when producing the U-shaped tube, moving along the guide grooves at two sides of its slicing surface A-A via chain and the annular ring connected to the chain, to connect the section core annular ring at the surface A-A; when the U-shaped tube is molded, extracting out the core, the chain will draw out the annular ring along the guide groove; then taking the tube outside the mould, to repeat aforementioned steps. The invention also provides a relative section core. And the section core can automatically demould, and the produced tube has no dead corner, to improve the producing efficiency and reduce the cost.

Description

The method and the core thereof of U type pipe fitting production moulding

Technical field

The present invention relates to pipe fitting and make the field, the method and the core thereof that are adopted when especially referring to a kind of U type pipe fitting production moulding.

Background technology

U type pipe fitting is because two port of export turns to through 180 degree, and therefore, used core is difficult to the disposable demoulding of loosing core and finishes during production, needs to make through multiple working procedure, thereby has increased production cost, has also increased difficulty for the design and use mould; Disclose a kind of " U type pipe fitting injecting molding die " as Chinese patent ZL99237880, its mold cores is divided into two parts symmetrical, and every part is divided into straight core and circular arc core again, and the circular arc type core segment adopts flexible controlled connection, makes it to be the corner mode and extracts out; Because the core of this U type pipe fitting mold does not possess symmetry, the U type pipe of producing has because of straight core and the butt joint of circular arc core, the dead angle of back because of intersection formation of loosing core, both influenced the aesthetic feeling of product appearance, again transmission medium is produced retardation, therefore must improve related method and the core thereof of above-mentioned production U type pipe fitting on this basis.

Summary of the invention

The method and the core thereof that the purpose of this invention is to provide a kind of U type pipe fitting production moulding, the slick and sly no dead angle of the U type pipe fitting tube wall that utilizes this method and core thereof to produce.

Technical scheme of the present invention is achieved in that

A kind of method of U type pipe fitting production moulding is provided, when producing U type pipe fitting, the chain that is provided with along U type pipe cutting face A--A both sides drives the core ring plate that is connected with chain and moves along the gathering sill that is provided with in the core ring plate, make the core ring plate dock at U type pipe cutting face A--A place, behind the U type pipe fitting moulding by casting, when loosing core, chain is extracted the core ring plate along gathering sill and is separately shape, after taking out U type pipe fitting from mould, repeat said process.

According to said method, the core that provides a kind of this method to use:

A kind of core of U type pipe fitting production moulding is characterized in that: described core is cooperatively interacted by a plurality of core ring plates that are five equilibrium 180 degree angles along U type pipe fitting bearing of trend and forms.

The core of aforesaid U type pipe fitting production moulding is characterized in that: described a plurality of core ring plates are divided into two, and are provided with along U type pipe cutting face bilateral symmetry.

The core of aforesaid U type pipe fitting production moulding is characterized in that: be provided with gathering sill in described a plurality of core ring plates, be provided with chain in the gathering sill, chain is connected with the core ring plate.

Method and core thereof through the U of above setting type pipe fitting production moulding, because of having adopted the structure that the core ring plate is set along U type pipe cutting face bilateral symmetry, realized the automatic demoulding of core, and the slick and sly no dead angle of the U type pipe fitting tube wall of producing, both improved the production efficiency when producing U type pipe fitting, save production process, reduced production cost again.

Description of drawings

The fractal line of B-B is the plane structure chart of core of the present invention with top among Fig. 1; The whole figure of Fig. 1 is to utilize the present invention to produce the plane structure chart of U type pipe fitting.

Fig. 2 is that Fig. 1 is applied in the structural plan figure on the mould, and this mould is that a mould four goes out when producing U type pipe fitting.

Fig. 3 is the structure enlarged drawing of the circle part of mark C among Fig. 2.

Fig. 4 is the profile that utilizes a kind of U type pipe fitting of mould production shown in Figure 2.

Fig. 5 is the three-dimensional structure diagram that utilizes a kind of U type pipe fitting of mould production shown in Figure 2.

The specific embodiment

Below in conjunction with the description of drawings embodiments of the invention:

Referring to Fig. 1 to Fig. 5, provide a kind of U type pipe fitting to produce building core, described core is cooperatively interacted by a plurality of core ring plates 1 that are five equilibrium 180 degree angles along U type pipe fitting bearing of trend and forms; Above-mentioned a plurality of core ring plates are divided into two, are provided with along U type pipe cutting face A--A bilateral symmetry.Be provided with gathering sill 2 in described a plurality of core ring plate 1, be provided with chain 3 in the gathering sill 2, chain 3 is connected with core ring plate 3.

A kind of method of utilizing the core production U type pipe fitting of above-mentioned U type pipe fitting production moulding is provided, when core is produced U type pipe fitting, the chain 3 that is provided with along U type pipe cutting face A--A both sides drives core ring plate 1 and moves along gathering sill 2, make core ring plate 1 dock at U type pipe cutting face A--A place, behind the U type pipe fitting moulding by casting, when loosing core, chain 3 is extracted core ring plate 1 along gathering sill 2 and is separately shape, after taking out U type pipe fitting from mould, repeat said process again and get final product.

Be set to 8 as core number among the present invention, then core ring plate 1 number of cutting face A--A both sides setting is 4; The rest may be inferred can draw various embodiments.

The structure that the number, gathering sill of core ring plate 1 is set and transmits the chain of core ring plate 1 along cutting face A--A bilateral symmetry among the present invention is the present invention's emphasis; draw the method and the core thereof of U type pipe fitting production moulding according to this, all fall into protection scope of the present invention with said structure feature.

Claims

1, a kind of method of U type pipe fitting production moulding, when it is characterized in that producing U type pipe fitting, the chain that is provided with along U type pipe cutting face A--A both sides drives the core ring plate that is connected with chain and moves along the gathering sill that is provided with in the core ring plate, make the core ring plate dock at U type pipe cutting face A--A place, behind the U type pipe fitting moulding by casting, when loosing core, chain is extracted the core ring plate along gathering sill and is separately shape, after taking out U type pipe fitting from mould, repeat said process.

2, a kind of core of U type pipe fitting production moulding is characterized in that: described core is cooperatively interacted by a plurality of core ring plates that are five equilibrium 180 degree angles along U type pipe fitting bearing of trend and forms.

3, the core of U type pipe fitting production moulding as claimed in claim 2, it is characterized in that: described a plurality of core ring plates are divided into two, and are provided with along U type pipe cutting face bilateral symmetry.

4, the core of U type pipe fitting production moulding as claimed in claim 3, it is characterized in that: be provided with gathering sill in described a plurality of core ring plates, be provided with chain in the gathering sill, chain is connected with the core ring plate.