CN212352831U

CN212352831U - Extrusion die for PE (polyethylene) pipe

Info

Publication number: CN212352831U
Application number: CN202021011797.2U
Authority: CN
Inventors: 刘云鹏; 刘勇军; 曹方榕; 张焕坡; 赵劲松
Original assignee: Tianjin Manhua Pipe Material Industry Co ltd
Current assignee: Tianjin Manhua Pipe Material Industry Co ltd
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2021-01-15
Anticipated expiration: 2030-06-05

Abstract

The utility model discloses a be used for PE tubular product extrusion tooling, include lower mold core, die cavity down, go up the mold core, go up the mold cavity and high temperature resistant bush down, the central point department of putting at lower mold core top is equipped with die cavity down, and the top of die core down is equipped with the mold core to the central point department of putting of going up the mold core bottom is equipped with the mold cavity, the last mold core internal portion that goes up the mold cavity outside is fixed with two sets of high temperature resistant bushes of going up, and the lower mold core internal portion that goes up the die cavity outside is fixed with two sets of lower bushes of going up, all be equipped with high temperature resistant location structure on two lateral walls of die core bottom down, and the telescopic link is installed through a piece to the one end on mold core surface down, and the top of telescopic link is connected through a piece and the fixed. The utility model discloses not only ensured the smoothness nature of PE tubular product outer wall when extruding the mould and using, improved the convenience when extruding the mould and using, improved the stability when extruding the mould and using moreover.

Description

Extrusion die for PE (polyethylene) pipe

Technical Field

The utility model relates to a PE tubular product mould technical field specifically is a be used for PE tubular product extrusion tooling.

Background

The PE extrusion pipe has a wide range of applications, for example, a city blow-off pipe, a mine drainage pipe, a forced draft pipe, a gas drainage pipe, a guniting pipe, a mine power cable, an optical cable, and a communication cable protection pipe are all used, and therefore, a large amount of such pipes need to be manufactured, and a corresponding extrusion mold is needed to ensure the accuracy of the pipes.

The extrusion die on the market is various and can basically meet the use requirements of people, but certain defects still exist, and the specific problems are as follows.

(1) The existing extrusion die is inconvenient for scraping the outer wall of the pipe, is difficult to ensure the smoothness of the outer wall of the pipe, and often troubles people;

(2) the existing extrusion die is inconvenient for quickly disassembling the upper die core and the lower die core, is difficult to clean the upper die cavity and the lower die cavity, and is very inconvenient to use;

(3) the existing extrusion die is inconvenient to position and process, difficult to install on the top of a platform of extrusion equipment and general in stability.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be used for PE tubular product extrusion tooling to it is not convenient for strike off, is not convenient for carry out quick dismantlement processing and the problem of being not convenient for carry out the location processing to last mold core and lower mold core to propose extrusion tooling among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a be used for PE tubular product extrusion tooling, includes lower mold core, lower mold cavity, goes up the mold core, goes up the mold cavity and high temperature resistant bush down, the central point department of putting at lower mold core top is equipped with down the mold cavity, and the top of lower mold core is equipped with the mold core to the central point department of putting of going up the mold core bottom is equipped with the mold cavity, the last mold core internal part that goes up the mold cavity outside is fixed with two sets of high temperature resistant bushes of going up, and the lower mold core internal part that goes up the mold cavity outside is fixed with two sets of low temperature resistant bushes down, all be equipped with location structure on two lateral walls of lower mold core bottom, and the telescopic link is installed through a piece to the one end on mold core surface down, and the top of telescopic link is connected through a piece.

Preferably, the inside of location structure is equipped with in proper order and pushes away handle, spacing groove, locating pin, locating plate and arrangement frame, all be fixed with the arrangement frame on two lateral walls of lower mold core bottom, and the central point department of arranging the frame bottom is equipped with the locating plate to install the locating plate in the inside of arranging the frame.

Preferably, one side of the inside of the positioning plate is provided with a positioning pin, and two ends of the positioning pin extend to the outside of the positioning plate so as to position the extrusion die by means of an external bolt.

Preferably, one side of settling the frame top is equipped with the spacing groove, and the top of spacing groove extends to the outside of settling the frame, and the settling frame top of spacing groove position department installs and pushes away the handle, pushes away the bottom of handle and runs through the spacing groove and with the top fixed connection of locating plate to drive the locating plate and be located the inside translation of settling the frame.

Preferably, elevation structure's inside is equipped with down lead screw, last lead screw and a spiral section of thick bamboo in proper order, the lower die core surface of telescopic link both sides all is fixed with down the lead screw through a piece, and the one end threaded connection on lead screw surface has a spiral section of thick bamboo down to the surface that is located the lead screw rotates a spiral section of thick bamboo.

Preferably, the screw cylinder above the lower screw rod is connected with an upper screw rod through threads, and the top end of the upper screw rod extends to the outside of the screw cylinder and is fixedly connected with the surface of the upper die core through a support block so as to adjust the distance between the upper die core and the lower die core.

Compared with the prior art, the beneficial effects of the utility model are that: the PE pipe extrusion die not only ensures the smoothness of the outer wall of the PE pipe when the extrusion die is used, improves the convenience and the stability of the extrusion die when the extrusion die is used;

(1) by arranging the upper high-temperature-resistant bushing and the lower high-temperature-resistant bushing and respectively arranging the upper high-temperature-resistant bushing and the lower high-temperature-resistant bushing in the inner parts of the upper mold core and the lower mold core outside the upper mold core and the lower mold cavity, when the pipe is subjected to extrusion process treatment through the upper mold cavity and the lower mold cavity, the outer wall of the pipe can be in contact with the inner walls of the upper high-temperature-resistant bushing and the lower high-temperature-resistant bushing, and then the outer wall of the pipe is scraped by the upper high-temperature-resistant bushing and the lower high-temperature-resistant bushing, so that the smoothness of the outer wall of the PE pipe;

(2) by arranging the lower screw rod, the upper screw rod and the spiral cylinder, the spiral cylinder is rotated to enable the surfaces of the lower screw rod and the upper screw rod to rotate, and the length of the spiral cylinder is a fixed value, so that the distance between the lower screw rod and the upper screw rod is gradually increased, the distance between the upper mold core and the lower mold core is increased, and meanwhile, the lifting amplitude of the telescopic rod is limited, so that the lower screw rod and the upper screw rod cannot be separated from the inside of the spiral cylinder, the inside of the lower mold cavity and the inside of the upper mold cavity can be cleaned, and the convenience of the extrusion mold in use is improved;

(3) push away the handle through being provided with, the spacing groove, the locating pin, locating plate and arrangement frame, push away the handle through promoting, make its inside that is located the spacing groove slide, and make and push away the handle and drive the inside that the locating plate is located the arrangement frame and carry out the translation, when the locating pin is located the outside of arranging the frame, through locating pin screw in to the top of extrusion equipment platform with the help of outside bolt, can carry out positioning process to extrusion tooling, in order to reduce its phenomenon that produces the slippage to tubular product extrusion process in-process, thereby stability when extrusion tooling used has been improved.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic view of the positioning structure of the present invention in cross section and enlarged structure;

FIG. 4 is a schematic view of the sectional view of the elevating structure of the present invention;

fig. 5 is a schematic view of the appearance structure of the present invention.

In the figure: 1. a lower mold core; 2. a lower die cavity; 3. an upper mold core; 4. an upper high temperature resistant bushing; 5. an upper mold cavity; 6. a lower high temperature resistant bushing; 7. a positioning structure; 701. a push handle; 702. a limiting groove; 703. positioning pins; 704. positioning a plate; 705. a mounting frame; 8. a lifting structure; 801. a lower screw rod; 802. feeding a screw rod; 803. a spiral cylinder; 9. a telescopic rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides an embodiment: a PE pipe extrusion die comprises a lower die core 1, a lower die cavity 2, an upper die core 3, an upper die cavity 5 and a lower high-temperature-resistant bushing 6, wherein the center position of the top of the lower die core 1 is provided with the lower die cavity 2, the upper die core 3 is arranged above the lower die core 1, the center position of the bottom of the upper die core 3 is provided with the upper die cavity 5, two groups of upper high-temperature-resistant bushings 4 are fixed inside the upper die core 3 outside the upper die cavity 5, two groups of lower high-temperature-resistant bushings 6 are fixed inside the lower die core 1 outside the lower die cavity 2, positioning structures 7 are arranged on two outer side walls of the bottom of the lower die core 1, a push handle 701, a limiting groove 702, a positioning pin, a positioning plate 704 and a placing frame 705 are sequentially arranged inside the positioning structures 7, the placing frame 703 is fixed on two outer side walls of the bottom of the lower die core 1, the positioning plate 704 is arranged at the center position, both ends of the positioning pin 703 extend to the outside of the positioning plate 704, one side of the top of the mounting frame 705 is provided with a limiting groove 702, the top end of the limiting groove 702 extends to the outside of the mounting frame 705, the top end of the mounting frame 705 at the position of the limiting groove 702 is provided with a push handle 701, and the bottom end of the push handle 701 penetrates through the limiting groove 702 and is fixedly connected with the top end of the positioning plate 704;

the push handle 701 is pushed to be located in the limiting groove 702 to slide, the push handle 701 drives the positioning plate 704 to be located in the mounting frame 705 to move horizontally, when the positioning pin 703 is located outside the mounting frame 705, the positioning pin 703 is screwed into the top of the extrusion equipment platform through the positioning pin 703 by means of an external bolt, and then the extrusion die can be positioned, so that the phenomenon that the extrusion die slides in the pipe extrusion process is reduced, and the stability of the extrusion die in use is improved;

an expansion link 9 is mounted at one end of the surface of the lower die core 1 through a support block, the top end of the expansion link 9 is fixedly connected with the surface of the upper die core 3 through the support block, lifting structures 8 are arranged on the surfaces of the lower die cores 1 at two sides of the expansion link 9, a lower screw rod 801, an upper screw rod 802 and a spiral cylinder 803 are sequentially arranged in the lifting structures 8, the lower screw rods 801 are fixed on the surfaces of the lower die cores 1 at two sides of the expansion link 9 through the support block, a spiral cylinder 803 is connected to one end of the surface of the lower screw rod 801 in a threaded manner, an upper screw rod 802 is connected to the inner portion of the spiral cylinder 803 above the lower screw rod 801 in a threaded manner, and the top end of the upper screw rod 802 extends to the outer portion of;

through rotatory cylinder 803, make its surface that is located lead screw 801 and last lead screw 802 rotatory, length because of cylinder 803 is the fixed value, and then make down the interval between lead screw 801 and the last lead screw 802 promote gradually, and make the interval between last mold core 3 and the lower mold core 1 obtain promoting, telescopic link 9 is spacing to its amplitude of rise simultaneously, in order to ensure down lead screw 801 and last lead screw 802 can't break away from in the inside of cylinder 803, and then can clear up the inside of lower die cavity 2 and last die cavity 5, the convenience when having improved the extrusion die and using.

The working principle is as follows: when the extrusion die is used, firstly, the upper high temperature resistant bushing 4 and the lower high temperature resistant bushing 6 are respectively arranged inside the upper die core 3 and the lower die core 1 at the outer sides of the upper die core 3 and the lower die cavity 2, when the pipe is subjected to extrusion process treatment inside the upper die cavity 5 and the lower die cavity 2, the outer wall of the pipe can be in contact with the inner walls of the upper high temperature resistant bushing 4 and the lower high temperature resistant bushing 6, and then the outer wall of the pipe is scraped by the upper high temperature resistant bushing 4 and the lower high temperature resistant bushing 6, so that the smoothness of the outer wall of the PE pipe when the extrusion die is used is ensured, then the extrusion die can be positioned by pushing the push handle 701 to slide inside the limiting groove 702 and enabling the push handle 701 to drive the positioning plate 704 to be positioned inside the mounting frame 705 to translate, when the positioning pin 703 is positioned outside the mounting frame 705, the extrusion die can be positioned by means of screwing an external bolt into the top of an extrusion, with the phenomenon that it produces the slippage to the tubular product extrusion technology in-process of reducing, stability when extrusion die uses has been improved, finally through rotatory spiral cylinder 803, make its surface that is located lead screw 801 and last lead screw 802 rotatory down, because of the length of spiral cylinder 803 is the fixed value, and then make the interval between lead screw 801 and the last lead screw 802 promote gradually, and make the interval between last mold core 3 and the lower mold core 1 promote, telescopic link 9 carries on spacingly to its amplitude of lift simultaneously, in order to ensure that lead screw 801 and last lead screw 802 can't break away from the inside in spiral cylinder 803 down, and then can clear up the inside of lower die cavity 2 and last die cavity 5, the convenience when extrusion die uses has been improved, thereby accomplish extrusion die's use.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a be used for PE tubular product extrusion tooling, includes lower mold core (1), lower die cavity (2), goes up mold core (3), goes up mold cavity (5) and lower high temperature resistant bush (6), its characterized in that: the utility model discloses a mold core, including lower mold core (1), upper mold core (5), lower mold core (1), lower mold core (2), and the top of lower mold core (1) is equipped with mold core (3) to the central point department of putting of last mold core (3) bottom is equipped with mold cavity (5), last mold core (3) inside of going up the mold cavity (5) outside is fixed with two sets of high temperature resistant bushings (4) of going up, and lower mold core (1) inside of lower mold core (2) outside is fixed with two sets of high temperature resistant bushings (6) down, all be equipped with location structure (7) on two lateral walls of lower mold core (1) bottom, and the one end on mold core (1) surface installs telescopic link (9) down through a piece, and the fixed surface of a piece and last mold core (3) is connected on the top of telescopic link (9) to lower mold core (1) surface of telescopic link (9.

2. The die for PE pipe extrusion according to claim 1, wherein: the inner part of the positioning structure (7) is sequentially provided with a push handle (701), a limiting groove (702), a positioning pin (703), a positioning plate (704) and a positioning frame (705), the two outer side walls of the bottom of the lower mold core (1) are both fixedly provided with the positioning frame (705), and the central position of the bottom of the positioning frame (705) is provided with the positioning plate (704).

3. A die for PE pipe extrusion according to claim 2, wherein: one side of the inside of the positioning plate (704) is provided with a positioning pin (703), and two ends of the positioning pin (703) extend to the outside of the positioning plate (704).

4. A die for PE pipe extrusion according to claim 2, wherein: one side of the top of the placement frame (705) is provided with a limit groove (702), the top end of the limit groove (702) extends to the outside of the placement frame (705), the top end of the placement frame (705) at the position of the limit groove (702) is provided with a push handle (701), and the bottom end of the push handle (701) penetrates through the limit groove (702) and is fixedly connected with the top end of the positioning plate (704).

5. The die for PE pipe extrusion according to claim 1, wherein: the inside of elevation structure (8) is equipped with down lead screw (801), goes up lead screw (802) and spiral section of thick bamboo (803) in proper order, lower mold core (1) surface of telescopic link (9) both sides all is fixed with down lead screw (801) through a piece, and the one end threaded connection on lead screw (801) surface has spiral section of thick bamboo (803) down.

6. A die for PE pipe extrusion according to claim 5, wherein: an upper screw rod (802) is connected to the inner thread of the spiral cylinder (803) above the lower screw rod (801), and the top end of the upper screw rod (802) extends to the outside of the spiral cylinder (803) and is fixedly connected with the surface of the upper mold core (3) through a support block.