CN216804328U

CN216804328U - Polytetrafluoroethylene bar extrusion die

Info

Publication number: CN216804328U
Application number: CN202123309666.XU
Authority: CN
Inventors: 陶黎雄
Original assignee: Zhejiang Jiadexun New Material Technology Co ltd
Current assignee: Zhejiang Jiadexun New Material Technology Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-06-24
Anticipated expiration: 2031-12-27

Abstract

The utility model discloses a polytetrafluoroethylene bar extrusion die which comprises a forming tube body, wherein one end of the forming tube body is open and the other end is closed, the top wall of the forming tube body is fixedly connected with a feeding tube body which penetrates through the forming tube body, a water channel is formed in the forming tube body and spirally arranged around the forming tube body, one end of the forming tube body, which is open, is rotatably connected with a sealing cover through a hinge, the top of the sealing cover is magnetized, the inner wall of the sealing cover is slidably connected with a sealing plate, the sealing plate is connected with the inner wall of the sealing cover through a spring, the top of the sealing plate is fixedly connected with a first induction module, the inner wall of the sealing cover is fixedly connected with a second induction module, and the bottom of the sealing cover is fixedly connected with an induction lamp. The utility model can ensure that the molten liquid can completely fill the inner cavity of the forming pipe body, prevent the occurrence of bar defect, improve the quality of the bar, simultaneously have good cooling effect of the die and improve the forming efficiency of the bar.

Description

Polytetrafluoroethylene bar extrusion die

Technical Field

The utility model relates to the technical field of bar forming, in particular to a polytetrafluoroethylene bar extrusion die.

Background

Polytetrafluoroethylene, commonly known as "plastic king", is a high molecular compound formed by polymerizing tetrafluoroethylene, and has excellent chemical stability, corrosion resistance, sealing property, high lubrication non-sticking property, electrical insulation property and good aging resistance. Can be used as engineering plastics and can be made into polytetrafluoroethylene tube, rod, strip, plate, film, etc. The method is generally applied to corrosion-resistant pipelines, containers, pumps, valves, radar manufacturing equipment, high-frequency communication equipment, radio equipment and the like with higher performance requirements.

When the existing plastic bar extrusion die is used, the condition that the bars are not fully filled and then have defects often occurs, and meanwhile, the die is lack of a cooling function, so that the bars are slowly molded.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a polytetrafluoroethylene bar extrusion die.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a polytetrafluoroethylene rod extrusion tooling, includes the shaping body, shaping body one end opening one end seals the setting, shaping body roof fixedly connected with runs through the feeding body that sets up, the heat insulating ring has been inlayed at feeding body middle part, feeding body top fixedly connected with flange, the inside water course of having seted up of shaping body, the water course encircles shaping body spiral setting, shaping body opening one end is connected with sealed lid through the hinge rotation, the magnetization of sealed lid top sets up, sealed lid inner wall sliding connection has the closing plate, closing plate and sealed lid inner wall pass through spring coupling, the first response module of closing plate top fixedly connected with, sealed lid inner wall fixedly connected with second response module, sealed lid bottom fixedly connected with response lamp.

As a further description of the above technical solution:

the forming pipe body is characterized in that a through hole is formed in the closed end of the forming pipe body, a push rod is inserted in the through hole in a sliding mode, the push rod is arranged in a T shape, an ejector plate is fixedly connected with the insertion end of the push rod, and the side wall of the ejector plate is connected with the inner wall of the forming pipe body in a sliding mode.

As a further description of the above technical solution:

the forming pipe body comprises an anti-sticking layer, a heat conduction layer is arranged on the outer side of the anti-sticking layer, and an anti-rust layer is arranged on the outer side of the heat conduction layer.

As a further description of the above technical solution:

the forming pipe body is arranged in a cylindrical column mode, the sealing plate is arranged in a cylindrical mode, and the inner diameter of the forming pipe body is the same as the outer diameter of the sealing plate.

As a further description of the above technical solution:

the forming pipe body comprises a first pipe body and a second pipe body, the first pipe body and the second pipe body are both arranged in a semi-cylindrical mode, connecting pieces are fixedly connected to the tops of the first pipe body and the second pipe body, and the first pipe body and the second pipe body are fixedly connected through bolts inserted into the connecting pieces.

As a further description of the above technical solution:

the first tube body and the second tube body outer side wall are provided with a plurality of radiating fins which are evenly arranged, the first tube body outer side wall is provided with a water inlet hole and a water outlet hole respectively, and the water inlet hole and the water outlet hole are communicated with a water channel.

The utility model has the following beneficial effects:

1. compared with the prior art, this polytetrafluoroethylene rod extrusion tooling is provided with closing plate and response lamp, and in the melt got into the forming tube body from the feeding body, the melt supported the closing plate to promoting the closing plate, responding to the module contact when first response module and second, the response lamp lights, stopped adding the melt, this process makes the melt can fill the forming tube body inner chamber completely, prevents that the rod defect condition from taking place, has improved the rod quality.

2. Compared with the prior art, this polytetrafluoroethylene rod extrusion tooling is provided with water course and radiating fin, and the coolant liquid pours into the water course into from the inlet opening, then flows out from the apopore, and the coolant liquid circulation is reciprocal for the melt in the shaping body cools off the shaping rapidly, cooperates radiating fin to dispel the heat to the shaping body simultaneously, can improve rod shaping efficiency.

Drawings

FIG. 1 is a sectional view of a Teflon rod extrusion die provided by the utility model;

FIG. 2 is an external view of a PTFE bar extruding mold according to the present invention;

FIG. 3 is a cross-sectional view of a molded tube of the Teflon rod extrusion mold of the present invention;

FIG. 4 is a structural diagram of a forming tube of the Teflon rod extrusion mold of the present invention.

Illustration of the drawings:

1. forming a pipe body; 111. an anti-sticking layer; 112. a heat conductive layer; 113. a rust-proof layer; 2. a feed tube body; 3. a heat insulating ring; 4. a connecting flange; 5. a water channel; 6. a water inlet hole; 7. a water outlet hole; 8. connecting sheets; 9. a through hole; 10. a push rod; 11. ejecting the plate; 12. a sealing cover; 13. a first sensing module; 14. a sealing plate; 15. a spring; 16. a second sensing module; 17. an induction lamp; 18. a first pipe body; 19. a second tube body; 20. and (4) radiating fins.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the utility model provides a polytetrafluoroethylene bar extrusion die, which comprises a forming tube body 1, wherein one end of the forming tube body 1 is open and the other end is closed, a feed tube body 2 which is arranged in a penetrating manner is fixedly connected to the top wall of the forming tube body 1, a heat insulation ring 3 is embedded in the middle of the feed tube body 2, the heat insulation ring 3 can prevent heat of an external injection device from being transferred to the die, a connecting flange 4 is fixedly connected to the top of the feed tube body 2, a water channel 5 is formed in the forming tube body 1, the water channel 5 is spirally arranged around the forming tube body 1, the open end of the forming tube body 1 is rotatably connected with a sealing cover 12 through a hinge, the top of the sealing cover 12 is magnetized, a sealing plate 14 is slidably connected to the inner wall of the sealing cover 12, the sealing plate 14 is connected with the inner wall of the sealing cover 12 through a spring 15, a first induction module 13 is fixedly connected to the top of the sealing plate 14, and a second induction module 16 is fixedly connected to the inner wall of the sealing cover 12, the bottom of the sealing cover 12 is fixedly connected with an induction lamp 17.

The lateral walls of the first pipe body 18 and the second pipe body 19 are provided with a plurality of radiating fins 20 which are evenly arranged, the lateral wall of the first pipe body 18 is provided with a water inlet hole 6 and a water outlet hole 7 respectively, and the water inlet hole 6 and the water outlet hole 7 are communicated with the water channel 5. The cooling liquid is injected into the water channel 5 from the water inlet hole 6 and then flows out from the water outlet hole 7, and the cooling liquid is circulated and reciprocated, so that the molten liquid in the forming pipe body 1 is cooled and formed.

A through hole 9 is formed in the closed end of the forming pipe body 1, a push rod 10 is inserted in the through hole 9 in a sliding mode, the push rod 10 is arranged in a T mode, an ejector plate 11 is fixedly connected to the insertion end of the push rod 10, and the side wall of the ejector plate 11 is connected with the inner wall of the forming pipe body 1 in a sliding mode. After the bar is formed, the push rod 10 is pushed to eject the formed bar.

The forming pipe body 1 is a cylindrical column, the sealing plate 14 is a cylindrical column, and the inner diameter of the forming pipe body 1 is the same as the outer diameter of the sealing plate 14. The melt butts against the sealing plate 14, and when the sealing plate 14 is pushed, the first induction module 13 and the second induction module 16 are in contact, the induction lamp 17 is turned on, the melt is stopped to be added, the melt can be completely filled in the inner cavity of the forming pipe body 1 in the process, and the bar is prevented from being defective.

Referring to fig. 3, the forming pipe body 1 comprises a first pipe body 18 and a second pipe body 19, the first pipe body 18 and the second pipe body 19 are both in a semi-cylindrical shape, the connecting pieces 8 are fixedly connected to the tops of the first pipe body 18 and the second pipe body 19, and the first pipe body 18 and the second pipe body 19 are fixedly connected through the bolt inserted into the connecting pieces 8. The structure is convenient for taking apart the formed tube body 1, and the inner cavity of the tube body is inspected and maintained, thereby being beneficial to improving the quality of the bar material.

Referring to fig. 4, forming tube 1 includes antiseized layer 111, and antiseized layer 111 outside is provided with heat-conducting layer 112, and the heat-conducting layer 112 outside is provided with antirust layer 113, and antiseized layer 111 can prevent that melt from solidifying the back and the bonding of forming tube 1 inner wall, and heat-conducting layer 112 exports the melt heat, and antirust layer 113 prevents that forming tube 1 from being rusted by the coolant liquid.

The working principle is as follows: cover sealed lid 12, flange 4 and feed arrangement connect, the melt gets into the shaping body 1 from feeding body 2 in, the melt supports closing plate 14, and pushing away closing plate 14, when first response module 13 and the contact of second response module 16, response lamp 17 lights, stop adding the melt, this process makes the melt fill shaping body 1 inner chamber completely, pour into water course 5 with the coolant liquid from inlet opening 6 into, then flow out from apopore 7, the coolant liquid circulation is reciprocal, make the melt cooling shaping in the shaping body 1, open sealed lid 12, then it is ejecting with the shaping rod to promote push rod 10.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a polytetrafluoroethylene rod extrusion tooling, includes shaping body (1), its characterized in that: one end of the forming pipe body (1) is provided with an opening, the other end of the forming pipe body is closed, the top wall of the forming pipe body (1) is fixedly connected with a feeding pipe body (2) which is arranged in a penetrating mode, a heat insulation ring (3) is embedded in the middle of the feeding pipe body (2), the top of the feeding pipe body (2) is fixedly connected with a connecting flange (4), a water channel (5) is formed in the forming pipe body (1), the water channel (5) is spirally arranged around the forming pipe body (1), one end of the opening of the forming pipe body (1) is rotatably connected with a sealing cover (12) through a hinge, the top of the sealing cover (12) is magnetized, the inner wall of the sealing cover (12) is slidably connected with a sealing plate (14), the sealing plate (14) is connected with the inner wall of the sealing cover (12) through a spring (15), the top of the sealing plate (14) is fixedly connected with a first induction module (13), and the inner wall of the sealing cover (12) is fixedly connected with a second induction module (16), the bottom of the sealing cover (12) is fixedly connected with an induction lamp (17).

2. A teflon rod extrusion die according to claim 1, characterized in that: the forming pipe body is characterized in that a through hole (9) is formed in the closed end of the forming pipe body (1), a push rod (10) is inserted in the through hole (9) in a sliding mode, the push rod (10) is arranged in a T-shaped mode, an ejector plate (11) is fixedly connected to the inserting end of the push rod (10), and the side wall of the ejector plate (11) is connected with the inner wall of the forming pipe body (1) in a sliding mode.

3. A teflon rod extrusion die according to claim 1, characterized in that: the forming pipe body (1) comprises an anti-sticking layer (111), a heat conduction layer (112) is arranged on the outer side of the anti-sticking layer (111), and an anti-rust layer (113) is arranged on the outer side of the heat conduction layer (112).

4. A teflon rod extrusion die according to claim 1, characterized in that: the forming pipe body (1) is arranged in a cylindrical column mode, the sealing plate (14) is arranged in a cylindrical mode, and the inner diameter of the forming pipe body (1) is the same as the outer diameter of the sealing plate (14).

5. A teflon rod extrusion die according to claim 1, characterized in that: the forming pipe body (1) comprises a first pipe body (18) and a second pipe body (19), the first pipe body (18) and the second pipe body (19) are arranged in a semi-cylindrical mode, connecting pieces (8) are fixedly connected to the tops of the first pipe body (18) and the second pipe body (19), and the first pipe body (18) and the second pipe body (19) are fixedly connected through bolts in inserting the connecting pieces (8).

6. A polytetrafluoroethylene rod extrusion die according to claim 5, wherein: the heat dissipation device is characterized in that a plurality of uniformly arranged heat dissipation fins (20) are arranged on the outer side walls of the first pipe body (18) and the second pipe body (19), a water inlet hole (6) and a water outlet hole (7) are formed in the outer side wall of the first pipe body (18), and the water inlet hole (6) and the water outlet hole (7) are communicated with a water channel (5).