CN210733212U

CN210733212U - Extrusion die with light increasing ring

Info

Publication number: CN210733212U
Application number: CN201921546094.7U
Authority: CN
Inventors: 张艳平; 严常军; 刘柱云; 程万发; 曾小雨; 夏祥山; 喻春林
Original assignee: Hubei Wanjin Technology Co ltd
Current assignee: Hubei Wanjin Technology Co ltd
Priority date: 2019-09-18
Filing date: 2019-09-18
Publication date: 2020-06-12
Anticipated expiration: 2029-09-18

Abstract

The utility model discloses an extrusion die with ring of increasing light belongs to tubular product and extrudes technical field. The extrusion head comprises an extrusion head body, wherein an extrusion hole is formed in the extrusion head body and communicated with an extruder, and the extrusion hole is a circular hole; the outer end of the extrusion head body is provided with a light increasing ring (1) matched with the extrusion hole, and a die orifice matched with the extrusion hole is arranged on the light increasing ring (1); a tetrafluoroethylene ring body (2) which is flush with the extrusion hole is embedded at the inner end of the die opening, and the outer end of the die opening is a bell mouth (102) which is gradually enlarged from inside to outside; the thickness of the tetrafluoroethylene ring body (2) is 2-4 mm. The surface smoothness of the PE pipe is improved, the PE pipe is not prone to deformation during extrusion forming, the pipe diameter is uniform, the quality of the pipe is improved, and the structure is simple.

Description

Extrusion die with light increasing ring

Technical Field

The utility model relates to a technical field is extruded to tubular product, concretely relates to extrusion die with ring of increasing luminance.

Background

The mould material of current PE tubular product all is steel, and fashioned PE pipe is electroplated through the polishing for the surface reaches certain roughness, and current PE pipe surface is more crude, and is bright inadequately, can not satisfy current demand, and later stage processing is time-wasting relatively, has also increased the cost of production.

The die for increasing the surface brightness of the PE pipe comprises a die and is characterized in that a core die is arranged in an inner cavity of the die, a limiting hole is formed in the right end of the core die, a discharge hole is formed between the die and the core die, the right side of the die is fixedly connected with a die extrusion ring, the die extrusion ring comprises a first ring body, a first mounting hole is formed in the outer side of the inner cavity of the first ring body, a through hole is formed in the middle of the inner cavity of the first ring body, the right side of the core die is fixedly connected with a core die extrusion ring, the core die extrusion ring comprises a second ring body, a second mounting hole is formed in the outer side of the inner cavity of the second ring body, and a limiting column matched with the limiting hole is formed in the left side of the second ring body; the mouth die extrusion intensifying ring and the core die extrusion intensifying ring are made of polytetrafluoroethylene materials. The problem of increasing the surface brightness of the PE pipe is solved, but because the mechanical property of polytetrafluoroethylene is soft, the mouth die extrusion ring and the core die extrusion ring are easy to deform after long-time work, the pipe diameter is easy to be uneven when the PE pipe is extruded and formed, and the quality has flaws.

Therefore, how to increase the surface smoothness of the PE pipe and simultaneously enable the PE pipe not to lose shape easily during extrusion forming, the pipe diameter is uniform, and the improvement of the quality of the pipe becomes a technical problem to be solved.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides an extrusion die with ring of increasing light can make difficult out of shape when PE tubular product extrusion again when increasing PE tubular product surface smoothness, and the pipe diameter is even, improves the tubular product quality, and simple structure. The technical scheme is as follows:

the embodiment of the utility model provides an extrusion die with a light-increasing ring, which comprises an extrusion head body, wherein extrusion holes are arranged in the extrusion head body and communicated with an extruder, and the extrusion holes are round holes; the outer end of the extrusion head body is provided with a light-increasing ring 1 matched with the extrusion hole, and the light-increasing ring 1 is provided with a die orifice matched with the extrusion hole; the inner end of the die opening is embedded with a tetrafluoroethylene ring body 2 which is flush with the extrusion hole, and the outer end of the die opening is a bell mouth 102 which is gradually enlarged from inside to outside; the thickness of the tetrafluoroethylene ring body 2 is 2-4 mm.

Wherein, the embodiment of the utility model provides an in the ring structure that adds lustre to 1 is stainless steel, its and extrude the coaxial setting in hole, its inner ring constitution die orifice.

Wherein, the die orifice and the extrusion hole are coaxially arranged, and the inner end of the die orifice is a round hole with the same size as the extrusion hole; the bell mouth 102 is coaxial with the extrusion hole, and the diameter of the inner end of the bell mouth is 0.2-0.5mm larger than that of the inner ring of the tetrafluoroethylene ring body 2.

Specifically, the inner of the die orifice in the embodiment of the present invention is provided with the annular groove 101 coaxial with the extrusion hole, the tetrafluoroethylene ring body 2 is embedded in the annular groove 101, and the inner end of the tetrafluoroethylene ring body abuts against the outer end of the extrusion head body.

Specifically, the height of the tetrafluoroethylene ring body 2 in the embodiment of the present invention is 20-35mm, the height of the light-increasing ring 1 is 40-70mm, and the cone angle of the bell mouth 102 is 10-25 °.

Specifically, the tetrafluoroethylene ring body 2 in the embodiment of the present invention has a thickness of 3 mm.

Furthermore, a plurality of mounting holes 103 are uniformly distributed on the intensifying ring 1 around the die orifice in the embodiment of the utility model; the mounting hole 103 is arranged in parallel with the extrusion hole, and a bolt 3 penetrates through the mounting hole to fix the light-increasing ring 1 and the extrusion head body.

The embodiment of the utility model provides a beneficial effect that technical scheme brought is:

1. the utility model discloses the softer polytetrafluoroethylene ring body of mechanical property parcel is in stainless steel material's ring of increasing light originally internally and polytetrafluoroethylene ring body itself is just very frivolous, and the deformation space is little, consequently is difficult for producing deformation, can make difficult out of shape when PE tubular product extrusion again when increasing PE tubular product surface smoothness, and the pipe diameter is even, can improve tubular product production quality.

2. The utility model discloses the opening that is loudspeaker type outwards from the lining can not contact with stainless steel's the body of the ring of increasing light when making the tubular product ejection of compact, can not destroy the smoothness on tubular product surface.

3. The utility model discloses simple structure, convenient operation when polytetrafluoroethylene ring body wearing and tearing need be changed, only needs to loosen the bolt on the ring body that adds lustre to, takes out the polytetrafluoroethylene ring body from the recess and can change promptly, and need not change whole ring that adds lustre to, saves the cost.

Drawings

FIG. 1 is a schematic structural diagram of an extrusion die with a light-intensifying ring according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of an extrusion die with a light-intensifying ring according to an embodiment of the present invention.

In the figure: 1, a light increasing ring, 2 tetrafluoroethylene rings, 3 bolts, 101 ring grooves, 102 bell mouths and 103 mounting holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, the embodiment of the utility model provides an extrusion die with ring of increasing light, including extruding first body (the ring column structure), extrude and be equipped with in the first body (on the axis) and extrude hole and extruder intercommunication, extrude the hole and be its structure of round hole unanimous with the extruded material that needs are extruded. The structure is basically the same as that of the existing extrusion die, except that: the outer end of the extrusion head body in the embodiment is provided with a light-increasing ring 1 matched with the extrusion hole, and the light-increasing ring 1 is provided with a die orifice (used for extruding the extrusion material) matched with the extrusion hole. The inner end of the die opening is embedded with a tetrafluoroethylene ring body 2 (made of tetrafluoroethylene) which is flush with the extrusion hole (the inner wall of the extrusion hole is aligned), the outer end of the extrusion hole is a bell mouth 102 (a conical hole) which is gradually enlarged from inside to outside, and the tetrafluoroethylene ring body 2 is connected with the bell mouth 102. The thickness of the tetrafluoroethylene ring body 2 is 2-4mm (difference between the inner circle and the outer circle). The bell mouth 102 and the inner wall of the tetrafluoroethylene ring body 2 are smooth.

Referring to fig. 1 and 2, the ring 1 of the embodiment of the present invention is a circular ring structure made of stainless steel, and is coaxial with the extrusion hole, and its inner ring forms the die orifice.

Wherein, referring to fig. 1 and 2, the die orifice and the extrusion hole in the embodiment of the present invention are coaxially disposed, and the inner end of the die orifice is a round hole with the same size as the extrusion hole to ensure the parallel and level. The bell mouth 102 is coaxial with the extrusion hole, and the diameter of the inner end of the bell mouth is 0.2-0.5mm larger than that of the inner ring of the tetrafluoroethylene ring body 2 (a deformation allowance is reserved to ensure smooth transition).

Specifically, referring to fig. 2, the inner end of the die orifice in the embodiment of the present invention is provided with a ring groove 101 (inner end open ring groove) coaxial with the extrusion hole, and the tetrafluoroethylene ring body 2 is embedded in the ring groove 101 and its inner end abuts against the outer end of the extrusion head body (locked by the bolt 3).

Specifically, the height (distance between the inner end and the outer end) of the tetrafluoroethylene ring body 2 in the embodiment of the present invention is 20-35mm, the height (distance between the inner end and the outer end) of the light-increasing ring 1 is 40-70mm, and the cone angle (included angle between two bus bars) of the bell-mouth 102 is 10-25 °.

Further, referring to fig. 1 and 2, a plurality of mounting holes 103 (round holes, specifically 3-8, 6 in this embodiment) are uniformly distributed on the ring 1 around the die opening. The mounting hole 103 is arranged parallel to the extrusion hole and is penetrated with a bolt 3 to fix the light-increasing ring 1 with the extrusion head body (the inner end of a screw rod of the bolt 3 is in threaded connection with a corresponding screw hole on the extrusion head body). After being used for a period of time, the tetrafluoroethylene ring body 2 is convenient to replace.

During the use, fix polytetrafluoroethylene ring body 2 in the annular 101 on stainless steel's the ring of increasing light 1, screw up with bolt 3 and the screw that corresponds on extruding the head body one by one through the mounting hole 103 that sets up on the ring of increasing light 1, make polytetrafluoroethylene ring body 2 by tight centre gripping between ring of increasing light 1 and the head body of extruding, because polytetrafluoroethylene ring body 2 itself is very frivolous, the deformation space is little, consequently, be difficult for producing deformation, can make when PE tubular product extrusion is extruded again to PE tubular product smoothness difficult wandering to the appearance, the pipe diameter is even, can improve tubular product production quality.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. An extrusion die with a light-increasing ring comprises an extrusion head body, wherein an extrusion hole is formed in the extrusion head body and communicated with an extruder, and the extrusion hole is a circular hole; the method is characterized in that: the outer end of the extrusion head body is provided with a light increasing ring (1) matched with the extrusion hole, and a die orifice matched with the extrusion hole is arranged on the light increasing ring (1); a tetrafluoroethylene ring body (2) which is flush with the extrusion hole is embedded at the inner end of the die opening, and the outer end of the die opening is a bell mouth (102) which is gradually enlarged from inside to outside; the thickness of the tetrafluoroethylene ring body (2) is 2-4 mm.

2. The extrusion die with the light-adding ring as recited in claim 1, wherein: the light increasing ring (1) is of a stainless steel circular ring structure, is coaxial with the extrusion hole, and forms a die orifice by the inner ring.

3. The extrusion die with the light-adding ring as recited in claim 1, wherein: the die orifice and the extrusion hole are coaxially arranged, and the inner end of the die orifice is a round hole with the same size as the extrusion hole; the bell mouth (102) and the extrusion hole are coaxially arranged, and the diameter of the inner end of the bell mouth is 0.2-0.5mm larger than that of the inner ring of the tetrafluoroethylene ring body (2).

4. The extrusion die with the light-adding ring as recited in claim 1, wherein: the inner of die orifice is equipped with and extrudes coaxial annular (101) in hole, tetrafluoroethylene ring body (2) are inlayed in annular (101) and its inner end top leans on extruding the head body outer end.

5. The extrusion die with the light-adding ring as recited in claim 1, wherein: the height of the tetrafluoroethylene ring body (2) is 20-35mm, the height of the light increasing ring (1) is 40-70mm, and the cone angle of the bell mouth (102) is 10-25 degrees.

6. The extrusion die with the light-adding ring as recited in claim 1, wherein: the thickness of the tetrafluoroethylene ring body (2) is 3 mm.

7. The extrusion die with the light-adding ring as recited in claim 1, wherein: a plurality of mounting holes (103) are uniformly distributed on the light increasing ring (1) around the die orifice; the mounting hole (103) is arranged in parallel with the extrusion hole, and a bolt (3) penetrates through the mounting hole to fix the light increasing ring (1) with the extrusion head body.