CN215320509U

CN215320509U - Highlight CPVC tubular product extrusion tooling

Info

Publication number: CN215320509U
Application number: CN202120022430.9U
Authority: CN
Inventors: 邬官江
Original assignee: Zhejiang Tianyan Holding Co ltd
Current assignee: Zhejiang Tianyan Holding Co ltd
Priority date: 2021-01-06
Filing date: 2021-01-06
Publication date: 2021-12-28
Anticipated expiration: 2031-01-06

Abstract

The utility model provides a highlight CPVC pipe extrusion die, and belongs to the technical field of dies. The die holder comprises a left die holder, a middle die holder, a right die holder, a core die and a die head which are detachably arranged, wherein the core die and the die head are combined to form the pipe forming runner. Through advance to water the runner structure at a high speed and can let in extrusion moulding CPVC tubular product in the tubular product shaping runner with liquid CPVC material fast, improve production efficiency, the die holder is formed by left die holder, well die holder, right die holder, mandrel and die head combination and can be convenient for assemble and disassemble to can quick assembly disassembly mandrel, and can extrusion moulding the tubular product of the different wall thicknesses of different external diameters through the mandrel of change size difference.

Description

Highlight CPVC tubular product extrusion tooling

Technical Field

The utility model belongs to the technical field of dies, and relates to a highlight CPVC pipe extrusion die.

Background

CPVC is a novel engineering plastic with wide application prospect. The resin is prepared by chlorination modification of polyvinyl chloride (PVC) resin, and is a novel engineering plastic. The product is white or light yellow, odorless, and nontoxic loose granule or powder. After the PVC resin is chlorinated, the irregularity of molecular bonds is increased, the polarity is increased, the solubility of the resin is increased, and the chemical stability is increased, so that the heat resistance, the acid resistance, the alkali resistance, the salt resistance, the oxidant resistance and the like of the material are improved. The mechanical property of the thermal deformation temperature of the resin is improved, the chlorine content is improved from 56.7 percent to 63-69 percent, the Vicat softening temperature is improved from 72-82 ℃ to 90-125 ℃, the maximum use temperature can reach 110 ℃, and the long-term use temperature is 95 ℃. Wherein the CORZAN CPVC performance index is more excellent.

CPVC pipe is generally formed by extrusion through a die, but the prior art extrusion dies for pipe cannot produce pipe with the same outside diameter and different wall thickness.

In order to overcome the defects of the prior art, people continuously explore and propose various solutions, for example, a pipe extruder die is disclosed in the chinese patent application No.: 201510692862.X ], a mouth mold, a core mold, a first support rod, a second support rod and a core mold cooling pipe, wherein the core mold is arranged in the mouth mold and is coaxially arranged with the mouth mold, a first flow guide channel, a second flow guide channel and a shaping channel are formed between the mouth mold and the core mold and are sequentially connected along a material extrusion direction, the second flow guide channel is in a frustum shape, and the diameter of one end close to the first flow guide channel is larger than that of the other end; a spiral neck ring mold cooling channel is arranged in the neck ring mold and is arranged around the shaping channel; the core mould is of a hollow structure, the first support rod and the second support rod penetrate through the mouth mould and extend into the cavity of the core mould, the first support rod and the second support rod are internally provided with flow channels, the cavity of the core mould is internally provided with a core mould cooling pipe, the inlet of the core mould cooling pipe is communicated with the flow channel of the first support rod, and the outlet of the core mould cooling pipe is communicated with the flow channel of the second support rod.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provides a highlight CPVC pipe extrusion die.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a highlight CPVC tubular product extrusion tooling, includes the die holder, the die holder on be equipped with tubular product shaping runner and advance at a high speed that links to each other with tubular product shaping runner and water the runner structure, the die holder including can dismantle left die holder, well die holder, right die holder, mandrel and the die head that sets up, advance at a high speed and water the runner structure and set up in left die holder, well die holder, right die holder, mandrel and die head combination form tubular product shaping runner.

In foretell highlight CPVC tubular product extrusion tooling, left die holder, well die holder and right die holder can dismantle the connection through a plurality of bolts, a plurality of bolts set up along circumference, the mandrel can dismantle with the right die holder through connection structure and be connected, the die head can dismantle with the right die holder through fixed knot structure and be connected.

In foretell highlight CPVC tubular product extrusion tooling, high-speed advance to water the runner structure including advancing the runner, left die holder in be equipped with advance the annular runner that the runner links to each other No. one, well die holder in be equipped with the annular runner No. two that links to each other with an annular runner, right die holder in be equipped with the annular runner No. three that links to each other with No. two annular runners, annular runner No. three link to each other with tubular product shaping runner.

In foretell highlight CPVC tubular product extrusion tooling, the cross-section of an annular runner be the V type, the internal diameter of No. three annular runners reduce gradually from being close to well die holder one side and keeping away from well die holder one side, and the ring footpath of No. three annular runners also reduces gradually from being close to well die holder one side and keeping away from well die holder one side.

In the highlight CPVC pipe extrusion die, the die head is internally provided with a connecting runner which is respectively connected with the third annular runner and the pipe forming runner, and the side wall of the connecting runner is obliquely arranged.

In foretell highlight CPVC tubular product extrusion tooling, the mandrel pass and insert in the tubular product shaping runner in connecting the runner, the cross-section of mandrel left end be conical and form No. four annular runners with connecting the runner combination, No. four annular runners link to each other with tubular product shaping runner, and No. four annular runners's ring footpath reduces from being close to well die holder one side to keeping away from well die holder one side gradually, the cross-section of mandrel right-hand member be cylindrical and form tubular product shaping runner with the die head combination, the mandrel level set up.

In foretell highlight CPVC tubular product extrusion tooling, connection structure include the screwed joint who links firmly with the mandrel, right die holder middle part be equipped with the thread groove of screwed joint looks adaptation, the screwed joint on still linked firmly the connecting bolt, the connecting bolt run through right die holder and middle die holder and insert to the left die holder in along the horizontal direction.

In foretell highlight CPVC tubular product extrusion tooling, fixed knot construct including setting up the spacing step on the die head, the die head on still overlap and be equipped with ring baffle, ring baffle link firmly through a plurality of bolts and right die holder, ring baffle inner and spacing step support and lean on.

In the highlight CPVC pipe extrusion die, one end, close to the right die holder, of the die head is further provided with a plurality of positioning blocks arranged along the circumferential direction, and the positioning blocks are inserted into the right die holder.

In foretell highlight CPVC tubular product extrusion tooling, the die head in still be equipped with the annular cooling runner with the concentric setting of tubular product shaping runner, right die holder top be equipped with the feed liquor and connect, the die head in still be equipped with the feed liquor runner that links to each other with feed liquor joint inner and annular cooling runner respectively, the die head in still be equipped with vertical setting and the flowing back runner that links to each other with annular cooling runner.

Compared with the prior art, the utility model has the advantages that:

1. through advance to water the runner structure at a high speed and can let in extrusion moulding CPVC tubular product in the tubular product shaping runner with liquid CPVC material fast, improve production efficiency, the die holder is formed by left die holder, well die holder, right die holder, mandrel and die head combination and can be convenient for assemble and disassemble to can quick assembly disassembly mandrel, and can extrusion moulding the tubular product of the different wall thicknesses of different external diameters through the mandrel of change size difference.

2. Left side die holder, well die holder, right die holder can dismantle the connection through a plurality of bolts and can conveniently dismantle the maintenance, and can quick replacement when damaging, avoid causing the influence to production efficiency, and fixed subassembly can be fixed the die head to the right die holder on, and the die head can accomplish the dismantlement fast through fixed subassembly, and the die head is pulled down the back, through dismantling the change with the mandrel.

3. Liquid CPVC material flows in from advancing runner department, extrusion moulding in the tubular product shaping runner can flow into to annular runner No. two annular runners and No. three annular runners of rethread, annular runner No. one, annular runner No. two and No. three annular runners are the annular and set up and to shunt raw and other materials, improve the inflow of raw and other materials and the velocity of flow of each position, prevent that whole raw and other materials from being located same pipeline entirely and leading to local raw and other materials to flow the difficulty, be the installation that the annular set up the mandrel that can also be convenient for.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

Fig. 1 is a schematic view of the overall structure provided by the present invention.

Detailed Description

As shown in fig. 1, a highlight CPVC tubular product extrusion die, includes die holder 1, die holder 1 on be equipped with tubular product shaping runner 2 and advance at a high speed with tubular product shaping runner 2 and water runner structure 3, die holder 1 including can dismantle left die holder 4, well die holder 5, right die holder 6, mandrel 7 and die head 8 that sets up, advance at a high speed and water runner structure 3 and set up in left die holder 4, well die holder 5, right die holder 6, mandrel 7 and die head 8 combination form tubular product shaping runner 2.

In this embodiment, advance to water runner structure 3 through high speed and can let in extrusion molding CPVC tubular product in tubular product shaping runner 2 fast with liquid CPVC material, improve production efficiency, die holder 1 is formed by left die holder 4, well die holder 5, right die holder 6, mandrel 7 and the combination of die head 8 and can be convenient for assemble and disassemble to can quick assembly disassembly mandrel 7, and can extrusion molding different external diameter not tubular product of wall thickness through the mandrel 7 of changing the size difference.

As shown in fig. 1, the left die holder 4, the middle die holder 5 and the right die holder 6 are detachably connected through a plurality of bolts, the plurality of bolts are circumferentially arranged, the core die 7 is detachably connected with the right die holder 6 through a connecting structure 9, and the die head 8 is detachably connected with the right die holder 6 through a fixing structure 10. Left side die holder 4, well die holder 5, right die holder 6 can be dismantled through a plurality of bolts and connect and can conveniently dismantle the maintenance, and can quick replacement spare when damaging, avoid causing the influence to production efficiency, and fixed subassembly can be fixed the die head to the right die holder on, and the die head can accomplish the dismantlement fast through fixed subassembly, and the back is pulled down to the die head, through dismantling the change with mandrel 7.

As shown in fig. 1, the high-speed pouring runner structure 3 includes a pouring gate 11, a first annular runner 12 connected with the pouring gate 11 is arranged in the left die holder 4, a second annular runner 13 connected with the first annular runner 12 is arranged in the middle die holder 5, a third annular runner 14 connected with the second annular runner 13 is arranged in the right die holder 6, and the third annular runner 14 is connected with the pipe forming runner 2. The liquid CPVC material flows in from advancing runner 11, again through annular runner 12, No. two annular runners 13 and No. three annular runners 14 can flow in to extrusion moulding in tubular product shaping runner 2, annular runner 12, No. two annular runners 13 and No. three annular runners 14 are the annular and set up and to shunt raw and other materials, improve the inflow of raw and other materials and the velocity of flow of each position, prevent that whole raw and other materials from being located same pipeline entirely and leading to local raw and other materials to flow the difficulty, be the installation that the annular set up the mandrel that can also be convenient for.

As shown in fig. 1, the section of the first annular runner 12 is V-shaped, the first annular runner 12 with the V-shaped section can divide the raw material flowing into the gate 11, the inner diameter of the third annular runner 14 gradually decreases from the side close to the middle die holder 5 to the side far away from the middle die holder 5, so that the divided raw material gradually approaches to and merges before entering the tube forming runner 2, and the ring diameter of the third annular runner 14 also gradually decreases from the side close to the middle die holder 5 to the side far away from the middle die holder 5, so as to increase the flow rate of the raw material, thereby improving the production efficiency. It will be appreciated by those skilled in the art that the ring diameter in the above embodiments refers to the difference between the radius of the outer wall of the annular flow passage 14 and the radius of the inner wall of the annular flow passage 14 divided by 2.

As shown in fig. 1, a connecting runner 15 connected to the third annular runner 14 and the tube forming runner 2 is further disposed in the die head 8, a side wall of the connecting runner 15 is disposed in an inclined manner, and the connecting runner 15 can communicate the third annular runner 14 and the tube forming runner 2.

As shown in fig. 1, the core mold 7 passes through the connecting flow passage 15 and is inserted into the pipe forming flow passage 2, the section of the left end of the core mold 7 is conical and is combined with the connecting flow passage 15 to form a fourth annular flow passage 16, the fourth annular flow passage 16 is connected with the pipe forming flow passage 2, the ring diameter of the fourth annular flow passage 16 is gradually reduced from the side close to the middle mold base 5 to the side far from the middle mold base 5, the flow rate of raw materials entering the pipe forming flow passage 2 can be further increased, so that the production efficiency is improved, the section of the right end of the core mold 7 is cylindrical and is combined with the mold head 8 to form the pipe forming flow passage 2, and the core mold 7 is horizontally arranged. It will be appreciated by those skilled in the art that the ring diameter in the above embodiments refers to the difference between the radius of the outer wall of the four-size annular flow passage 16 and the radius of the inner wall of the four-size annular flow passage 16 divided by 2.

As shown in fig. 1, the connecting structure 9 includes a threaded joint 17 fixedly connected to the core mold 7, a threaded groove 18 adapted to the threaded joint 17 is provided in the middle of the right mold base 6, a connecting bolt 19 is further fixedly connected to the threaded joint 17, and the connecting bolt 19 penetrates through the right mold base 6 and the middle mold base 5 in the horizontal direction and is inserted into the left mold base 4. The core mould 7 is screwed with the right mould base 6 through the threaded joint 17 and the threaded groove, so that the core mould can be conveniently detached and replaced, and the right mould base 6 can improve the stability of core mould connection.

As shown in fig. 1, the fixing structure 10 includes a limiting step 20 disposed on the die head 8, the die head 8 is further sleeved with an annular baffle 21, the annular baffle 21 is fixedly connected with the right die holder 6 through a plurality of bolts, and the inner end of the annular baffle 21 abuts against the limiting step 20. The annular baffle 21 cooperates spacing step 20 can carry on spacingly to the die head outer end, and annular baffle 21 links firmly through a plurality of bolts and 6 convenient die heads of right die base and dismantles.

As shown in fig. 1, one end of the die head 8 close to the right die holder 6 is further provided with a plurality of positioning blocks 22 arranged along the circumferential direction, and the positioning blocks 22 are inserted into the right die holder 6. The positioning block 22 can position the die head, so that the mounting position of the die head is accurate.

As shown in fig. 1, an annular cooling flow channel 23 concentrically arranged with the pipe forming flow channel 2 is further arranged in the die head 8, a liquid inlet connector 24 is arranged at the top of the right die holder 6, a liquid inlet flow channel 25 respectively connected with the inner end of the liquid inlet connector 24 and the annular cooling flow channel 23 is further arranged in the die head 8, and a liquid drainage flow channel 26 vertically arranged and connected with the annular cooling flow channel 23 is further arranged in the die head 8. The liquid inlet connector 24 is externally connected with cooling liquid, the cooling liquid flows into the annular cooling flow channel 23 through the liquid inlet connector 24 and the liquid inlet flow channel 25 to cool the raw materials in the pipe forming flow channel 2, so that the CPVC raw materials are rapidly cooled and formed, and the cooling liquid flowing into the annular cooling flow channel 23 can be discharged through the liquid discharge flow channel 26 after absorbing heat.

The working principle of the utility model is as follows: the liquid CPVC material can be quickly introduced into the pipe forming runner 2 through the high-speed pouring runner structure 3 to be extruded and formed into a CPVC pipe, so that the production efficiency is improved, the die holder 1 is formed by combining a left die holder 4, a middle die holder 5, a right die holder 6, a core die 7 and a die head 8, the assembly and disassembly can be convenient, the core die 7 can be quickly assembled and disassembled, and pipes with different outer diameters and wall thicknesses can be extruded and formed by replacing the core dies 7 with different sizes; the left die holder 4, the middle die holder 5 and the right die holder 6 are detachably connected through a plurality of bolts, so that the disassembly and maintenance are convenient, replacement parts can be quickly replaced when the die is damaged, the influence on the production efficiency is avoided, the die head can be fixed on the right die holder by the fixing assembly, the die head can be quickly disassembled through the fixing assembly, after the die head is disassembled, the core die 7 can be disassembled and replaced, liquid CPVC material flows in from the inlet sprue 11 and then flows into the pipe forming runner 2 through the first annular runner 12, the second annular runner 13 and the third annular runner 14 for extrusion forming, the first annular runner 12, the second annular runner 13 and the third annular runner 14 are arranged in an annular shape, so that the raw material can be divided, the inflow amount of the raw material and the flow rate of each position are improved, the problem that the local raw material is difficult to flow due to the fact that all the raw material is positioned in the same pipeline is solved, and the installation of the core die can be facilitated due to the annular shape, the mandrel 7 can be conveniently detached and replaced through the threaded connector 17 and the threaded groove and the right die holder 6 in a threaded mode, the right die holder 6 can improve the stability of mandrel connection, the annular baffle 21 is matched with the limiting step 20 to limit the outer end of the mandrel, the annular baffle 21 is fixedly connected with the right die holder 6 through a plurality of bolts to facilitate the detachment of the mandrel, the positioning block 22 can position the mandrel, the mounting position of the mandrel is accurate, the liquid inlet connector 24 is externally connected with cooling liquid, the cooling liquid flows into the annular cooling flow channel 23 through the liquid inlet connector 24 and the liquid inlet flow channel 25 to cool raw materials in the pipe forming flow channel 2, the CPVC raw materials are rapidly cooled and formed, and the cooling liquid flowing into the annular cooling flow channel 23 can be discharged through the liquid discharge flow channel 26 after absorbing heat.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. The high-gloss CPVC pipe extrusion die comprises a die holder (1) and is characterized in that a pipe forming runner (2) and a high-speed pouring runner structure (3) connected with the pipe forming runner (2) are arranged on the die holder (1), the die holder (1) comprises a left die holder (4), a middle die holder (5), a right die holder (6), a core die (7) and a die head (8) which are detachably arranged, the high-speed pouring runner structure (3) is arranged in the left die holder (4), the middle die holder (5) and the right die holder (6), and the core die (7) and the die head (8) are combined to form the pipe forming runner (2); the die comprises a left die holder (4), a middle die holder (5) and a right die holder (6), wherein the left die holder, the middle die holder and the right die holder are detachably connected through a plurality of bolts which are arranged along the circumferential direction, a core die (7) is detachably connected with the right die holder (6) through a connecting structure (9), and a die head (8) is detachably connected with the right die holder (6) through a fixing structure (10); the high-speed pouring runner structure (3) comprises a pouring gate (11), a first annular runner (12) connected with the pouring gate (11) is arranged in the left die holder (4), a second annular runner (13) connected with the first annular runner (12) is arranged in the middle die holder (5), a third annular runner (14) connected with the second annular runner (13) is arranged in the right die holder (6), and the third annular runner (14) is connected with the pipe forming runner (2); the section of the first annular flow channel (12) is V-shaped, the inner diameter of the third annular flow channel (14) is gradually reduced from one side close to the middle die holder (5) to one side far away from the middle die holder (5), and the ring diameter of the third annular flow channel (14) is also gradually reduced from one side close to the middle die holder (5) to one side far away from the middle die holder (5); a connecting runner (15) which is respectively connected with the third annular runner (14) and the pipe forming runner (2) is also arranged in the die head (8), and the side wall of the connecting runner (15) is obliquely arranged; the pipe forming device is characterized in that the core mold (7) penetrates through the connecting flow channel (15) and is inserted into the pipe forming flow channel (2), the section of the left end of the core mold (7) is conical and is combined with the connecting flow channel (15) to form a fourth annular flow channel (16), the fourth annular flow channel (16) is connected with the pipe forming flow channel (2), the annular diameter of the fourth annular flow channel (16) is gradually reduced from one side close to the middle mold base (5) to one side far away from the middle mold base (5), the section of the right end of the core mold (7) is cylindrical and is combined with the mold head (8) to form the pipe forming flow channel (2), and the core mold (7) is horizontally arranged.

2. The high-gloss CPVC pipe extrusion die as claimed in claim 1, wherein said connecting structure (9) comprises a threaded joint (17) fixedly connected with a core die (7), a threaded groove (18) matched with the threaded joint (17) is formed in the middle of the right die holder (6), a connecting bolt (19) is further fixedly connected to the threaded joint (17), and the connecting bolt (19) penetrates through the right die holder (6) and the middle die holder (5) along the horizontal direction and is inserted into the left die holder (4).

3. The highlight CPVC pipe extrusion die of claim 2, characterized in that said fixed structure (10) comprises a limit step (20) arranged on the die head (8), said die head (8) is further sleeved with an annular baffle (21), said annular baffle (21) is fixedly connected with the right die holder (6) through a plurality of bolts, and the inner end of said annular baffle (21) abuts against the limit step (20).

4. The high-gloss CPVC pipe extrusion die as claimed in claim 3, wherein a plurality of positioning blocks (22) arranged along the circumferential direction are further arranged at one end of the die head (8) close to the right die holder (6), and the positioning blocks (22) are inserted into the right die holder (6).

5. The highlight CPVC pipe extrusion die of claim 4, characterized in that die head (8) in still be equipped with the concentric annular cooling runner (23) that sets up of tubular product shaping runner (2), right die holder (6) top be equipped with liquid inlet joint (24), die head (8) in still be equipped with respectively with liquid inlet joint (24) the inner feed liquid runner (25) that link to each other with annular cooling runner (23), die head (8) in still be equipped with vertical setting and the flowing back runner (26) that links to each other with annular cooling runner (23).