CN114274486B - Extrusion die for double-layer multipoint support HDPE winding pipe - Google Patents
Extrusion die for double-layer multipoint support HDPE winding pipe Download PDFInfo
- Publication number
- CN114274486B CN114274486B CN202111572570.4A CN202111572570A CN114274486B CN 114274486 B CN114274486 B CN 114274486B CN 202111572570 A CN202111572570 A CN 202111572570A CN 114274486 B CN114274486 B CN 114274486B
- Authority
- CN
- China
- Prior art keywords
- buffer
- extrusion
- die body
- feed inlet
- buffer plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The application discloses an extrusion die for a double-layer multipoint support HDPE winding pipe, which comprises an outer die body, wherein a fixed die cavity is arranged in the outer die body, a fixed die is arranged in the fixed die cavity, a feed inlet and a discharge outlet are formed in the outer die body, a feed baffle is arranged in the outer die body and divides the inner part of the outer die body into a fixed die cavity and a buffer cavity, an extrusion hole is formed in the feed baffle, the feed inlet is communicated with the buffer cavity, a buffer plate is arranged in the buffer cavity and is in sliding sealing connection with the buffer cavity, the buffer plate is connected with a buffer mechanism through a connecting rod, and the buffer mechanism provides elastic supporting force for the movement of the buffer plate.
Description
Technical Field
The application relates to the technical field of HDPE winding pipe production, in particular to an extrusion die for a double-layer multipoint support HDPE winding pipe.
Background
The HDPE winding pipe is made of special-shaped strips through spiral winding and welding, the pipe has better strength and service life, and the special-shaped strips are made of plastic steel materials and plastic materials.
The existing anisotropic strip made of plastic is mainly of a hollow structure, the supporting strength of the winding pipe formed by the strip is relatively weak, and when the existing anisotropic strip is extruded, the uniformity of the wall thickness of the strip can be affected by the fluctuation of the pressure of an extrusion opening, and the quality of the HDPE winding pipe is further affected by referring to FIG. 1.
Disclosure of Invention
The application aims to provide an extrusion die for a double-layer multipoint support HDPE winding pipe, which solves the following technical problems:
how to promote uniformity of wall thickness during extrusion of the strip.
The aim of the application can be achieved by the following technical scheme:
the utility model provides an extrusion tooling of double-deck multiple spot support HDPE winding pipe, includes the external die body, the internal portion of external die is provided with decides the die cavity, it is provided with the stock mould to decide the die cavity, feed inlet and discharge gate have been seted up on the external die body, the inside of external die body is provided with the feeding baffle, and the feeding baffle is for deciding the die cavity and buffering chamber with the internal partition of external die body, the extrusion hole has been seted up on the feeding baffle, the feed inlet is linked together with the buffering chamber, the buffering intracavity is provided with the buffer board, just buffer board and buffer chamber sliding seal connection, the buffer board is connected with buffer mechanism through the connecting rod, buffer mechanism provides elastic support power for the buffer board, the feed inlet is located one side that buffer mechanism was kept away from to the buffer board all the time.
As a further scheme of the application: the buffer plate is placed obliquely, and the distance between the buffer plate and the feeding separation plate is reduced along with the increase of the distance between the buffer plate and the feeding separation plate.
As a further scheme of the application: the size of the extrusion hole is continuously increased along with the increase of the distance from the feeding hole.
As a further scheme of the application: the buffer mechanism comprises a shell, a connecting rod, springs and sleeves, wherein the shell is fixed on an outer die body, a plurality of sleeves are fixed inside the shell, the springs are installed inside the sleeves, one ends of the connecting rods are fixedly connected with the buffer plate, and the other ends of the connecting rods are slidably arranged inside the shell and are abutted against the springs.
As a further scheme of the application: the outer die body is provided with a cooling device relative to the outer part of the fixed die cavity.
As a further scheme of the application: the cooling device is a cooling water pipe wound by threads, a water inlet of the cooling water pipe is positioned at one side close to the discharge hole, and a water outlet of the cooling water pipe is positioned at one side far away from the discharge hole.
As a further scheme of the application: the outer die is provided with heating device with respect to the outside of the buffer chamber.
As a further scheme of the application: the outer die is provided with heating device with respect to the outside of the buffer chamber.
The application has the beneficial effects that:
(1) According to the application, the buffer cavity, the buffer plate and the buffer mechanism are arranged, so that when the feeding pressure of the feeding hole is high, the molten raw material can extrude the buffer plate to a certain extent, the volume of the raw material borne by the buffer cavity can be increased, the pressure when the raw material reaches the extrusion hole is reduced, and when the pressure is low, the buffer plate extrudes the raw material under the action of the buffer mechanism, and meanwhile, the volume of the raw material borne by the buffer cavity can be reduced, so that the pressure when the raw material reaches the extrusion hole is improved.
(2) According to the application, the buffer plate is obliquely arranged, and the buffer plate is closer to the extrusion hole at the position farther from the feed inlet, so that the buffer cavity volume corresponding to the extrusion hole at the position farther from the feed inlet is smaller, the buffer cavity volume corresponding to the extrusion hole at the position nearer to the feed inlet is larger, and meanwhile, the size of the extrusion hole is continuously increased along with the increase of the distance from the feed inlet, so that the extrusion hole farther from the feed inlet is larger, and the extrusion hole nearer to the feed inlet is smaller, therefore, the problems of different pressures of the extrusion holes at different distances relative to the feed inlet are solved by the oblique arrangement of the buffer plate and the arrangement of the extrusion holes, and the feeding quantity and the uniformity of the pressure of the feed inlet at different positions are improved, so that the uniformity of the wall thickness is improved.
(3) Through set up cooling device at the outside of external mold relative to fixed die cavity, cooling device adopts screw winding's condenser tube, and condenser tube's water inlet is located one side that is close to the discharge gate, consequently, the strip that is close to the discharge gate can obtain stronger cooling effect, and the strip cooling effect at rear reduces, and this kind of setting makes the cooling effect that the strip received constantly increase gradually, and then avoids the strip shaping back cooling rate change faster influence strip quality's problem.
(4) Through being provided with heating device at the outside of external mold relative buffering chamber, can keep warm the raw and other materials of buffering intracavity, and the raw and other materials distance heating device of feed inlet is nearer, and then can make the raw and other materials temperature of different position extrusion hole departments comparatively unanimous, and then can promote the uniformity of strip, promoted the quality of strip.
Drawings
The application is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of a prior art pipe extrusion die;
FIG. 2 is a schematic view of the structure of an extrusion die of the present application;
FIG. 3 is a cross-sectional view of an extrusion die of the present application;
FIG. 4 is a schematic view of the structure of the feed spacer of the present application;
FIG. 5 is a schematic view of a cushioning mechanism of the present application;
FIG. 6 is a schematic view of the structure of the shaping mold of the present application.
In the figure: 1. an outer mold body; 2. forming die; 3. a cavity is fixed; 4. a feed spacer; 5. extruding the hole; 6. a feed inlet; 7. a buffer chamber; 8. a buffer plate; 9. a buffer mechanism; 901. a housing; 902. a connecting rod; 903. a spring; 904. a sleeve; 10. a cooling device; 1001. a water inlet; 1002. a water outlet; 11. a discharge port; 12. a heating device.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 2-6, the application discloses an extrusion die for double-layer multipoint supporting HDPE winding pipes, which comprises an outer die body 1, wherein a shaping cavity 3 is arranged in the outer die body 1, a shaping die 2 is arranged in the shaping cavity 3, a feed inlet 6 and a discharge outlet 11 are formed in the outer die body 1, a feed baffle 4 is arranged in the outer die body 1, the inner part of the outer die body 1 is divided into the shaping cavity 3 and a buffer cavity 7 by the feed baffle 4, an extrusion hole 5 is formed in the feed baffle 4, the feed inlet 6 is communicated with the buffer cavity 7, a buffer plate 8 is arranged in the buffer cavity 7, the buffer plate 8 is connected with the buffer cavity 7 in a sliding and sealing manner, the buffer plate 8 is connected with a buffer mechanism 9 through a connecting rod, the buffer mechanism 9 provides elastic supporting force for the buffer plate 8, and the feed inlet 6 is always positioned on one side, far away from the buffer mechanism 9, of the buffer plate 8.
The buffer mechanism 9 comprises a shell 901, connecting rods 902, springs 903 and sleeves 904, wherein the shell 901 is fixed on the outer die body 1, a plurality of sleeves 904 are fixed inside the shell 901, the springs 903 are installed inside the sleeves 904, one ends of the connecting rods 902 are fixedly connected with the buffer plate 8, and the other ends of the connecting rods 902 are slidably arranged inside the shell 901 and are abutted against the springs 903.
In this embodiment, through setting up buffer chamber 7, buffer plate 8 and buffer gear 9, therefore when the pressure of feed inlet 6 feeding is great, the raw and other materials of melting can carry out certain extrusion to buffer plate 8, can increase buffer chamber 7 and bear the volume of raw and other materials, make the pressure when raw and other materials reach extrusion hole 5 diminish, and when the pressure is less, buffer plate 8 extrudees the raw and other materials under buffer gear 9's effect, can reduce buffer chamber 7 and bear the volume of raw and other materials simultaneously, and then promoted the pressure when raw and other materials reach extrusion hole 5, therefore, the pressure size of raw and other materials feeding of adjustment that the application can adapt, and then guaranteed the uniformity of tubular product wall thickness when extrusion.
Referring to fig. 3, the buffer plate 8 is disposed obliquely, and the distance between the buffer plate 8 and the feeding spacer 4 decreases with increasing distance from the feeding port 6.
The size of the extrusion hole 5 becomes larger as the distance from the feed port 6 increases.
In this embodiment, through setting up buffer board 8 slope, and the position buffer board 8 that is farther from feed inlet 6 is nearer to extrusion hole 5, consequently, make the buffer chamber 7 volume that the extrusion hole 5 that is farther from feed inlet 6 corresponds less, the buffer chamber 7 volume that the extrusion hole 5 that is nearer to feed inlet 6 corresponds is great, simultaneously the size of extrusion hole 5 is constantly becoming bigger along with the distance increase relative to feed inlet 6, consequently, make the extrusion hole 5 that is farther from feed inlet 6 bigger, the extrusion hole 5 that is nearer to feed inlet 6 is less, consequently, through the slope setting of buffer board 8 and the mode that extrusion hole 5 was arranged, the problem that the pressure size is different relative feed inlet 6 different apart from extrusion hole 5 has been solved, the degree of consistency of different position feed inlet 6 feed volumes and pressures has been promoted, and then the uniformity of wall thickness has been promoted.
Referring to fig. 3, the outer mold body 1 is provided with a cooling device 10 with respect to the outside of the mold cavity 3.
The cooling device 10 is a cooling water pipe wound by threads, a water inlet 1001 of the cooling water pipe is positioned at one side close to the discharge hole 11, and a water outlet 1002 of the cooling water pipe is positioned at one side far away from the discharge hole 11.
In this embodiment, through setting up cooling device 10 in external mold body 1 for the outside of fixed die cavity 3, cooling device 10 adopts screw winding's condenser tube, and condenser tube's water inlet 1001 is located the one side that is close to discharge gate 11, consequently, the strip that is close to discharge gate 11 can obtain stronger cooling effect, and the strip cooling effect at rear reduces, and this kind of setting makes the cooling effect that the strip received be constantly incremental, and then avoids the strip shaping back cooling rate change faster influence the problem of strip quality.
Referring to fig. 3, the outer mold body 1 is provided with a heating device 12 with respect to the outside of the buffer chamber 7.
The heating device 12 is arranged on one side of the outer die body 1 away from the feed inlet 6.
In this embodiment, through being provided with heating device 12 in external mold body 1 for the outside of cushion chamber 7, can keep warm the raw and other materials in the cushion chamber 7, and be nearer to heating device 12 apart from the raw and other materials of feed inlet 6, and then can make the temperature of different positions extrusion hole 5 department comparatively unanimous, and then can promote the uniformity of strip, promoted the quality of strip.
The working principle of the application is as follows: when the buffer plate is used, molten raw materials enter the buffer cavity 7 through the feed port 6, when the feeding pressure is high, the molten raw materials can extrude the buffer plate 8 to a certain extent, the volume of the buffer cavity 7 corresponding to the extrusion hole 5, which can be increased, can be reduced, and when the pressure is low, the buffer plate 8 extrudes the raw materials under the action of the buffer mechanism 9, and can reduce the volume of the buffer cavity 7 bearing the raw materials, so that the pressure when the raw materials reach the extrusion hole 5 is improved; when cooling the formed strip, cooling water enters the cooling device 10 from the water inlet 1001 close to one end of the discharge hole 11 and flows out from the water outlet 1002 far away from one end of the discharge hole 11, so that the strip close to the discharge hole 11 can obtain a stronger cooling effect, the cooling effect of the strip at the rear is reduced, and the problem that the quality of the strip is influenced by the rapid change of the cooling speed after the strip is formed is avoided; when carrying out the heat preservation to the raw and other materials in the cushion chamber 7, heating device 12 is located the one side of keeping away from feed inlet 6, can make the temperature of different positions extrusion hole 5 department comparatively unanimous, and then can promote the uniformity of strip, has promoted the quality of strip.
The foregoing describes one embodiment of the present application in detail, but the description is only a preferred embodiment of the present application and should not be construed as limiting the scope of the application. All equivalent changes and modifications within the scope of the present application are intended to be covered by the present application.
Claims (7)
1. The utility model provides an extrusion tooling of double-deck multiple spot support HDPE winding pipe, includes outer die body (1), the inside sizing die cavity (3) that is provided with of outer die body (1), be provided with sizing die (2) in sizing die cavity (3), feed inlet (6) and discharge gate (11) have been seted up on outer die body (1), a serial communication port, the inside of outer die body (1) is provided with feeding baffle (4), and feeding baffle (4) divide into sizing die cavity (3) and buffer chamber (7) with the inside of outer die body (1), extrusion hole (5) have been seted up on feeding baffle (4), feed inlet (6) are linked together with buffer chamber (7), be provided with buffer plate (8) in buffer chamber (7), just buffer plate (8) and buffer chamber (7) sliding seal, buffer plate (8) are connected with buffer mechanism (9) through the connecting rod, buffer mechanism (9) provide elastic support for buffer plate (8), feed inlet (6) are located one side that buffer plate (8) kept away from all the time.
The buffer mechanism (9) comprises a shell (901), a connecting rod (902), a spring (903) and a sleeve (904), wherein the shell (901) is fixed on an outer die body (1), a plurality of sleeves (904) are fixed inside the shell (901), the springs (903) are installed inside the sleeves (904), one ends of the connecting rods (902) are fixedly connected with a buffer plate (8), and the other ends of the connecting rods are slidably arranged inside the shell (901) and are abutted against the springs (903).
2. Extrusion die for double layer multipoint support HDPE wound pipe according to claim 1, characterized in that the buffer plate (8) is placed obliquely and the distance of the buffer plate (8) from the feed spacer (4) decreases with increasing distance from the feed inlet (6).
3. Extrusion die for double layer multipoint support HDPE wound pipe according to claim 1, characterized in that the size of the extrusion orifice (5) is increasing with increasing distance from the feed inlet (6).
4. Extrusion die for double layer multipoint support HDPE wound pipe according to claim 1, characterized in that the outer die body (1) is provided with cooling means (10) with respect to the outside of the fixed die cavity (3).
5. The extrusion die of a double-layer multi-point support HDPE winding pipe according to claim 4, wherein the cooling device (10) is a cooling water pipe wound by threads, a water inlet (1001) of the cooling water pipe is positioned at one side close to the discharge hole (11), and a water outlet (1002) of the cooling water pipe is positioned at one side far away from the discharge hole (11).
6. Extrusion die for double layer multipoint support HDPE wound pipe according to claim 1, characterized in that the outer die body (1) is provided with heating means (12) with respect to the outside of the buffer chamber (7).
7. Extrusion die for double-layer multipoint support HDPE wound pipe according to claim 6, characterized in that the heating device (12) is arranged at the side of the outer die body (1) remote from the feed inlet (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111572570.4A CN114274486B (en) | 2021-12-21 | 2021-12-21 | Extrusion die for double-layer multipoint support HDPE winding pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111572570.4A CN114274486B (en) | 2021-12-21 | 2021-12-21 | Extrusion die for double-layer multipoint support HDPE winding pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114274486A CN114274486A (en) | 2022-04-05 |
| CN114274486B true CN114274486B (en) | 2023-10-13 |
Family
ID=80873652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111572570.4A Active CN114274486B (en) | 2021-12-21 | 2021-12-21 | Extrusion die for double-layer multipoint support HDPE winding pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114274486B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08118452A (en) * | 1994-10-24 | 1996-05-14 | Ain Eng Kk | Method and apparatus for extrusion molding of hollow resin panel |
| US8287268B1 (en) * | 2011-04-15 | 2012-10-16 | Thomas Michael R | Distiller grain pellet production devices |
| CN208896461U (en) * | 2018-08-14 | 2019-05-24 | 湖北钟格塑料管有限公司 | A kind of PVC pipe extruder |
| CN111688145A (en) * | 2020-06-06 | 2020-09-22 | 浙江奥博管业股份有限公司 | Plastic pipe extrusion molding equipment and control method thereof |
| CN212331773U (en) * | 2020-05-27 | 2021-01-12 | 厦门蓬欣橡胶制品工业有限公司 | Extrusion flow distribution adjusting device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019107140B4 (en) * | 2019-03-20 | 2023-06-29 | Nordson Corporation | Nozzle arrangement with pressure regulating device and granulating device |
-
2021
- 2021-12-21 CN CN202111572570.4A patent/CN114274486B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08118452A (en) * | 1994-10-24 | 1996-05-14 | Ain Eng Kk | Method and apparatus for extrusion molding of hollow resin panel |
| US8287268B1 (en) * | 2011-04-15 | 2012-10-16 | Thomas Michael R | Distiller grain pellet production devices |
| CN208896461U (en) * | 2018-08-14 | 2019-05-24 | 湖北钟格塑料管有限公司 | A kind of PVC pipe extruder |
| CN212331773U (en) * | 2020-05-27 | 2021-01-12 | 厦门蓬欣橡胶制品工业有限公司 | Extrusion flow distribution adjusting device |
| CN111688145A (en) * | 2020-06-06 | 2020-09-22 | 浙江奥博管业股份有限公司 | Plastic pipe extrusion molding equipment and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114274486A (en) | 2022-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20050042402A1 (en) | Apparatus and method for extrusion of thin-walled tubes | |
| CN102563223B (en) | Multilayer co-extruded polyurethane plastic thermal insulation pipe and production method for same | |
| CN1023691C (en) | Method for forming tubing utilizing suction and pneumatic pressure at surface of cooling plug | |
| CN114274486B (en) | Extrusion die for double-layer multipoint support HDPE winding pipe | |
| CN104487182A (en) | Direct or indirect metal pipe extrusion process, mandrel for extruding metal pipes, metal pipe extruder and extruded metal pipe | |
| CN207207092U (en) | A kind of water cooling calibration sleeve | |
| CN203665911U (en) | Improved extrusion die machine tool for PE pipes | |
| CN216609964U (en) | Double-wall corrugated pipe forming and feeding distribution head and double-wall corrugated pipe forming machine | |
| CN206415435U (en) | A kind of aluminium section material extruder | |
| CN214214693U (en) | Breadth automatically regulated multilayer is crowded inflation film manufacturing machine altogether | |
| CN213321613U (en) | Plastic pipeline's shaping extrusion tooling | |
| CN202147384U (en) | Long-service life extrusion head and automatic extrusion system comprising same | |
| CN209320264U (en) | A kind of pipe mold of adjustable die body pressure | |
| CN202156018U (en) | Helical head of plastic extrusion production equipment | |
| CN104647727A (en) | Plastic extruder | |
| CN207523010U (en) | A kind of PE pipes extruding machine mold | |
| CN212795823U (en) | Die head and extrusion device for continuous extrusion of conductive foam tube | |
| CN218857646U (en) | A mould for PVC tubular product | |
| CN203680779U (en) | Spiral machine head of extrusion die | |
| CN211441095U (en) | Adjustable die | |
| CN216881101U (en) | Aluminum profile extrusion die capable of improving smoothness | |
| CN218535561U (en) | Extrusion production die for pipes | |
| CN220390270U (en) | Assembled plastic extrusion die | |
| CN206170602U (en) | Quick extrusion lamination die head of PE pipe extruder | |
| CN217670963U (en) | Cold drawing die plate device of extrusion granulator set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |