Extrusion molding die with heating and cooling functions

Abstract

The utility model discloses an extrusion molding die with heating and cooling functions, which belongs to the technical field of extrusion molding dies and comprises a cooling die. Extrusion heads are arranged on the right sides of the cooling molds; the right end of the extrusion head is connected with an extruder; the cooling die comprises a plurality of upper dies and lower dies; gradient cooling forming assemblies are arranged on the inner sides of the upper die and the lower die; a second fixing assembly is arranged between the upper die and the lower die. Alignment assemblies are arranged between the adjacent upper dies, between the adjacent lower dies and between the corresponding upper dies and lower dies. The lower die comprises an outer-layer lower die, an inner-layer lower die and a plurality of middle-layer lower dies. According to the mode, the cooling time of extruded and molded materials is increased or reduced through modular assembly of the cooling mold, disassembly, assembly, increase and decrease of the upper mold and the lower mold, and the different requirements of different raw materials for the cooling time are met; and the extruded and molded material is subjected to gradient cooling through the gradient cooling molding assembly, so that deformation of the material due to thermal expansion and cold contraction caused by too fast cooling of the material is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to extrusion mould technical field, specifically related to a kind of extrusion moulding mould with heating and cooling function. BACKGROUND

[0002] Extrusion mould technical field has good development prospect.In modern manufacturing industry, the demand of plastic products of various industries continues to rise, from the pipe profile of building field to the film container of packaging industry, etc., cannot do without extrusion mould.

[0003] Chinese patent CN220614865U discloses an extrusion moulding mould, including operation platform, the upper end edge position of operation platform is provided with water tank, the upper end of water tank is fixedly connected with water inlet pipe, the other end of water inlet pipe is fixedly connected with hollow ring, the lower end of hollow ring is fixedly connected with water outlet pipe;Through the water pump in water tank cooperation water inlet pipe, hollow ring can be quickly cooled to the plastic formed in extrusion pipe, and then the rate when die is demoulded can be increased;Through the cooperation of second motor, rotating plate, short rod, short block and connecting plate, the cutting knife can be rotated, and then the extrusion pipe can be cut out. However, the mould still has the following problems:

[0004] The mould can quickly cool the plastic formed in the extrusion pipe by the water pump in the water tank cooperating with the water inlet pipe and the hollow ring. The formed plastic may be deformed due to thermal expansion and contraction when cooled.

[0005] Therefore, the utility model designs a kind of extrusion moulding mould with heating and cooling function to solve the above problems. CONTENT OF UTILITY MODEL

[0006] In view of the above shortcomings of the prior art, the utility model provides an extrusion moulding mould with heating and cooling function.

[0007] To achieve the above purpose, the utility model is realized by the following technical scheme:

[0008] An extrusion moulding mould with heating and cooling function, comprising a cooling mould;

[0009] The cooling mould is provided with an extrusion head on the right side; the extrusion head is connected with an extruder for heating extrusion on the right end;

[0010] The cooling mould comprises a plurality of upper dies and a plurality of lower dies corresponding to the upper dies; the inner sides of the upper dies and the lower dies are provided with gradient cooling forming assemblies for gradient cooling of the extruded material; the fixing assembly two is arranged between the upper dies and the lower dies for fixing the corresponding upper dies and lower dies; the alignment assemblies are arranged between adjacent upper dies, adjacent lower dies and corresponding upper dies and lower dies for alignment assembly.

[0011] The lower mold comprises an outer layer lower mold, an inner layer lower mold and a plurality of middle layer lower molds between the outer layer lower mold and the inner layer lower mold; the right end of the outer layer lower mold is provided with a fixed groove one; the left end of the middle layer lower mold is fixedly connected with a fixed pin two, and the right end of the middle layer lower mold is provided with a fixed groove two; the left end of the inner layer lower mold is fixedly connected with a fixed pin three; the fixed groove one at the right end of the outer layer lower mold is inserted with the fixed pin two at the left end of the middle layer lower mold; the fixed groove two at the right end of the middle layer lower mold is inserted with the fixed pin three at the left end of the inner layer lower mold; the fixed pin two and the fixed groove two between adjacent middle layer lower molds are inserted; the front side of the fixed groove one is provided with a fixed assembly one for locking the fixed groove one and the fixed pin two, and the front end of the middle layer lower mold is connected with the fixed assembly one for locking the fixed pin two and the fixed groove two; the front end of the fixed pin three is provided with a fixed assembly one for locking the fixed groove two and the fixed pin three.

[0012] The upper mold comprises an outer layer upper mold, an inner layer upper mold and a plurality of middle layer upper molds between the outer layer upper mold and the inner layer upper mold, the outer layer upper mold is connected to the upper end of the outer layer lower mold through a fixed assembly two, and the middle layer upper mold is connected to the upper end of the corresponding middle layer lower mold through the fixed assembly two; the inner layer upper mold is connected to the upper end of the inner layer lower mold through the fixed assembly two.

[0013] Further, the alignment assembly comprises a T-shaped block two, a T-shaped block three and a T-shaped block four, the right end of the outer layer upper mold and the outer layer lower mold is provided with a T-shaped groove one; the left end of the middle layer upper mold and the middle layer lower mold is fixedly connected with the T-shaped block two, and the right end of the middle layer upper mold and the middle layer lower mold is provided with a T-shaped groove two; the left end of the inner layer upper mold and the inner layer lower mold is fixedly connected with the T-shaped block three; the T-shaped groove one at the right end of the outer layer upper mold is inserted with the T-shaped block two at the left end of the middle layer upper mold; the T-shaped groove one at the right end of the outer layer lower mold is inserted with the T-shaped block two at the left end of the middle layer lower mold; the T-shaped groove two at the right end of the middle layer upper mold is inserted with the T-shaped block three at the left end of the inner layer upper mold; the T-shaped groove two at the right end of the middle layer lower mold is inserted with the T-shaped block three at the left end of the inner layer lower mold; the T-shaped block two and the T-shaped groove two between adjacent middle layer upper molds are inserted; the T-shaped block two and the T-shaped groove two between adjacent middle layer lower molds are inserted; the lower end of the outer layer upper mold, the middle layer upper mold and the inner layer upper mold is fixedly connected with the T-shaped block four in front and back symmetry, and the upper end of the outer layer lower mold, the middle layer lower mold and the inner layer lower mold is provided with a T-shaped groove four in front and back symmetry, and the T-shaped groove four is inserted with the T-shaped block four.

[0014] Further, the fixed assembly one comprises a locking pin one, a spring one and a fixed block one, the front end of the outer layer lower mold and the middle layer lower mold is slidably connected with the locking pin one; the front end of the fixed pin two and the fixed pin three is provided with a locking groove one; the locking pin one is inserted with the locking groove one; the front end of the locking pin one is fixedly connected with the fixed block one; the front end of the outer layer lower mold and the middle layer lower mold is fixedly connected with the spring one, and the front end of the spring one is fixedly connected with the fixed block one.

[0015] Further, the rear end of the locking pin one is provided with an inclined surface.

[0016] Further, the fixed assembly two comprises a latch, a fixed pin four and a locking assembly, the lower end of the outer layer upper mold, the middle layer upper mold and the inner layer upper mold is fixedly connected with the latch and the fixed pin four, the upper end of the outer layer lower mold, the middle layer lower mold and the inner layer lower mold is provided with a slot and a fixed slot four, the slot is inserted with the latch, the fixed slot four is inserted with the fixed pin four, and the front end of the outer layer lower mold, the middle layer lower mold and the inner layer lower mold is connected with the locking assembly.

[0017] Further, the locking assembly comprises a locking pin two, a spring two and a fixed block two, the front end of the outer layer lower mold, the middle layer lower mold and the inner layer lower mold is slidably connected with the locking pin two, the side wall of the fixed pin four is provided with a locking slot two, the locking pin two is inserted with the locking slot two, the front end of the locking pin two is fixedly connected with the fixed block two, and the front end of the outer layer lower mold, the middle layer lower mold and the inner layer lower mold is fixedly connected with the spring two, and the front end of the spring two is fixedly connected with the fixed block two.

[0018] Further, the rear end of the locking pin two is provided with an inclined surface.

[0019] Further, the gradient cooling forming assembly comprises a water outlet pipeline, a cooling pipeline one, a cooling pipeline two and a cooling pipeline three, the inner side of the middle layer lower mold is provided with the cooling pipeline one and the cooling pipeline two, the left end of the middle layer lower mold is provided with a water inlet one in communication with the cooling pipeline one, the front side of the upper end of the middle layer lower mold is provided with a water outlet one in communication with the cooling pipeline one, the inner side of the middle layer upper mold is provided with the cooling pipeline three, the lower end of the middle layer upper mold is provided with a water inlet three in communication with the cooling pipeline three, the rear side of the lower end of the middle layer upper mold is provided with a water outlet three in communication with the cooling pipeline three, the rear side of the upper end of the middle layer lower mold is provided with a water inlet two in communication with the cooling pipeline two, the right end of the middle layer lower mold is provided with a water outlet pipeline in communication with the cooling pipeline two, and the water outlet pipeline is inserted with the water inlet one of the adjacent middle layer lower mold.

[0020] Compared with the prior art, the utility model has the advantages that: through the modular assembly of the cooling mold, the middle layer upper mold and the middle layer lower mold are increased or decreased, the time of cooling the material of extrusion forming is realized, and the different needs of different raw materials for cooling time are met. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creating labor under the premise.

[0022] Figure 1A three-dimensional view of the extrusion molding mold with heating and cooling functions of the utility model has the advantages of simple structure, convenient use, high efficiency, high quality, low cost, etc.

[0023] Figure 2 A front view of the extrusion molding mold with heating and cooling functions of the utility model has the advantages of simple structure, convenient use, high efficiency, high quality, low cost, etc.

[0024] Figure 3 A three-dimensional view of the middle layer upper mold of the utility model Figure 1 ;

[0025] Figure 4 A three-dimensional view of the inner layer upper mold of the utility model

[0026] Figure 5 A three-dimensional view of the gradient cooling molding assembly of the utility model

[0027] Figure 6 A three-dimensional view of the middle layer upper mold of the utility model Figure 2 ;

[0028] Figure 7 A three-dimensional view of the outer layer upper mold of the utility model

[0029] Figure 8 A three-dimensional view of the fixed assembly two of the utility model

[0030] Figure 9 A three-dimensional view of the fixed assembly one of the utility model Figure 1 ;

[0031] Figure 10 A three-dimensional view of the fixed assembly one of the utility model Figure 2 .

[0032] The reference numerals in the drawings represent respectively:

[0033] 10, extrusion head; 1, upper die; 2, lower die; 11, outer layer upper die; 12, middle layer upper die; 13, inner layer upper die; 21, outer layer lower die; 22, middle layer lower die; 23, inner layer lower die; 211, fixed slot one; 221, fixed pin two; 222, fixed slot two; 231, fixed pin three; 241, locking pin one; 242, spring one; 243, fixed block one; 244, locking slot one; 251, insertion slot; 252, insertion pin; 253, fixed slot four; 254, fixed pin four; 261, locking pin two; 262, spring two; 263, fixed block two; 264, locking slot two; 311, T-shaped slot one; 321, T-shaped block two; 322, T-shaped slot two; 331, T-shaped block three; 341, T-shaped slot four; 342, T-shaped block four; 4, gradient cooling forming assembly; 411, water inlet one; 412, water outlet one; 413, water inlet two; 414, water outlet pipe; 415, cooling pipe one; 416, cooling pipe two; 421, water inlet three; 422, water outlet three; 423, cooling pipe three. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0035] In the following description, the directions of "left", "right", "front", "back", "up" and "down" are defined in the perspective of the front view.

[0036] Embodiment one: in some embodiments, referring to the drawings of the specification Figures 1-10 A plastic extrusion molding die with heating and cooling functions, comprising a cooling mold;

[0037] The right side of the cooling mold is provided with an extrusion head 10; the right end of the extrusion head 10 is connected with an extruder for heating extrusion;

[0038] The cooling mold comprises a plurality of upper dies 1 and a plurality of lower dies 2 corresponding to the upper dies 1; the inner sides of the upper dies 1 and the lower dies 2 are provided with a gradient cooling forming assembly 4 for gradient cooling of the extrusion formed material; a fixing assembly two is arranged between the corresponding upper die 1 and lower die 2 for fixing the corresponding upper die 1 and lower die 2; a positioning assembly is arranged between adjacent upper dies 1, between adjacent lower dies 2 and between the corresponding upper die 1 and lower die 2 for alignment assembly;

[0039] The lower die 2 comprises an outer layer lower die 21, an inner layer lower die 23 and a plurality of middle layer lower dies 22 between the outer layer lower die 21 and the inner layer lower die 23; the right end of the outer layer lower die 21 is provided with a fixed groove one 211; the left end of the middle layer lower die 22 is fixedly connected with a fixed pin two 221, and the right end of the middle layer lower die 22 is provided with a fixed groove two 222; the left end of the inner layer lower die 23 is fixedly connected with a fixed pin three 231; the fixed groove one 211 at the right end of the outer layer lower die 21 is inserted with the fixed pin two 221 at the left end of the middle layer lower die 22; the fixed groove two 222 at the right end of the middle layer lower die 22 is inserted with the fixed pin three 231 at the left end of the inner layer lower die 23; the fixed pin two 221 and the fixed groove two 222 between adjacent middle layer lower dies 22 are inserted; the front side of the fixed groove one 211 is provided with a fixed assembly one for locking the fixed groove one 211 and the fixed pin two 221, and the front end of the middle layer lower die 22 is connected with a fixed assembly one for locking the fixed pin two 221 and the fixed groove two 222; the front end of the fixed pin three 231 is provided with a fixed assembly one for locking the fixed groove two 222 and the fixed pin three 231.

[0040] The upper die 1 comprises an outer layer upper die 11, an inner layer upper die 13 and a plurality of middle layer upper dies 12 between the outer layer upper die 11 and the inner layer upper die 13, the outer layer upper die 11 is connected to the upper end of the outer layer lower die 21 through a fixed assembly two, and the middle layer upper die 12 is connected to the upper end of the corresponding middle layer lower die 22 through a fixed assembly two; the inner layer upper die 13 is connected to the upper end of the inner layer lower die 23 through a fixed assembly two.

[0041] In the utility model, the outer layer upper die 11, the middle layer upper die 12, the inner layer upper die 13, the outer layer lower die 21, the middle layer lower die 22 and the inner layer lower die 23 are positioned and assembled through the positioning assembly, meanwhile, the fixed groove one 211 at the right end of the outer layer lower die 21 is inserted with the fixed pin two 221 at the left end of the middle layer lower die 22 and is locked through the fixed assembly one; the fixed groove two 222 at the right end of the middle layer lower die 22 is inserted with the fixed pin three 231 at the left end of the inner layer lower die 23 and is locked through the fixed assembly one; the fixed pin two 221 and the fixed groove two 222 between adjacent middle layer lower dies 22 are inserted and locked through the fixed assembly one, so that the modular assembly of the cooling die is realized; the raw material is heated and extruded by the extruder, and the extruded material is gradiently cooled by the gradient cooling forming assembly 4.

[0042] In the utility model, through the modular assembly of the cooling die, the middle layer upper die 12 and the middle layer lower die 22 are increased or decreased in dismounting and mounting, so that the time for cooling the extruded material is increased or decreased, and the different needs of different raw materials for cooling time are met; the extruded material is gradiently cooled by the gradient cooling forming assembly 4, so that the material is prevented from deforming due to thermal expansion and cold contraction caused by too fast cooling.

[0043] The alignment assembly comprises T-shaped block two 321, T-shaped block three 331 and T-shaped block four 342, the right end of the outer layer upper die 11 and the outer layer lower die 21 is provided with a T-shaped groove one 311; the left end of the middle layer upper die 12 and the middle layer lower die 22 is fixedly connected with the T-shaped block two 321, and the right end of the middle layer upper die 12 and the middle layer lower die 22 is provided with a T-shaped groove two 322; the left end of the inner layer upper die 13 and the inner layer lower die 23 is fixedly connected with the T-shaped block three 331; the T-shaped groove one 311 at the right end of the outer layer upper die 11 is inserted with the T-shaped block two 321 at the left end of the middle layer upper die 12; the T-shaped groove one 311 at the right end of the outer layer lower die 21 is inserted with the T-shaped block two 321 at the left end of the middle layer lower die 22; the T-shaped groove two 322 at the right end of the middle layer upper die 12 is inserted with the T-shaped block three 331 at the left end of the inner layer upper die 13; the T-shaped groove two 322 at the right end of the middle layer lower die 22 is inserted with the T-shaped block three 331 at the left end of the inner layer lower die 23; the T-shaped block two 321 between adjacent middle layer upper dies 12 is inserted with the T-shaped groove two 322; the T-shaped block two 321 between adjacent middle layer lower dies 22 is inserted with the T-shaped groove two 322; the lower end of the outer layer upper die 11, the middle layer upper die 12 and the inner layer upper die 13 is fixedly connected with the T-shaped block four 342 in front and back symmetry, and the upper end of the outer layer lower die 21, the middle layer lower die 22 and the inner layer lower die 23 is provided with the T-shaped groove four 341 in front and back symmetry, and the T-shaped groove four 341 is inserted with the T-shaped block four 342.

[0044] In the utility model, through the T-shaped groove one 311 at the right end of the outer layer upper die 11 is inserted with the T-shaped block two 321 at the left end of the middle layer upper die 12; the T-shaped groove one 311 at the right end of the outer layer lower die 21 is inserted with the T-shaped block two 321 at the left end of the middle layer lower die 22; the T-shaped groove two 322 at the right end of the middle layer upper die 12 is inserted with the T-shaped block three 331 at the left end of the inner layer upper die 13; the T-shaped groove two 322 at the right end of the middle layer lower die 22 is inserted with the T-shaped block three 331 at the left end of the inner layer lower die 23; the T-shaped block two 321 between adjacent middle layer upper dies 12 is inserted with the T-shaped groove two 322; the T-shaped block two 321 between adjacent middle layer lower dies 22 is inserted with the T-shaped groove two 322; the T-shaped groove four 341 is inserted with the T-shaped block four 342, realize the modular alignment assembly of cooling mould, and it is convenient for subsequent locking between different modules through fixed component one and fixed component two.

[0045] The fixed component one comprises a locking pin one 241, a spring one 242 and a fixed block one 243, the front end of the outer layer lower die 21 and the middle layer lower die 22 is slidably connected with the locking pin one 241, and the rear end of the locking pin one 241 is provided with an inclined surface; the front end of the fixed pin two 221 and the fixed pin three 231 is provided with a locking groove one 244; the locking pin one 241 is inserted with the locking groove one 244; the front end of the locking pin one 241 is fixedly connected with the fixed block one 243; the front end of the outer layer lower die 21 and the middle layer lower die 22 is fixedly connected with the spring one 242, and the front end of the spring one 242 is fixedly connected with the fixed block one 243.

[0046] The fixed assembly two comprises a bolt 252, a fixed pin four 254, a locking pin two 261, a spring two 262 and a fixed block two 263, the lower end of the outer layer upper die 11, the middle layer upper die 12 and the inner layer upper die 13 is fixedly connected with the bolt 252 and the fixed pin four 254; the upper end of the outer layer lower die 21, the middle layer lower die 22 and the inner layer lower die 23 is provided with a insertion slot 251 and a fixed slot four 253; the insertion slot 251 is inserted with the bolt 252; the fixed slot four 253 is inserted with the fixed pin four 254; the front end of the outer layer lower die 21, the middle layer lower die 22 and the inner layer lower die 23 is slidably connected with the locking pin two 261, and the rear end of the locking pin two 261 is provided with an inclined surface; the side wall of the fixed pin four 254 is provided with a locking slot two 264; the locking pin two 261 is inserted with the locking slot two 264; the front end of the locking pin two 261 is fixedly connected with the fixed block two 263; the front end of the spring two 262 is fixedly connected with the fixed block two 263.

[0047] In the utility model, when the adjacent middle layer lower die 22 needs to be disassembled, the fixed block one 243 of the left middle layer lower die 22 drives the locking pin one 241 to move to the front side, and the spring one 242 is stretched, when the locking pin one 241 is dislocated with the locking slot one 244, the locking of the adjacent middle layer lower die 22 is released, the fixed block one 243 is released, the spring one 242 drives the locking pin one 241 and the fixed block one 243 to move to the rear side and reset, and the disassembly of the middle layer lower die 22 is realized; when the middle layer lower die 22 needs to be installed, the fixed slot two 222 at the right end of the left middle layer lower die 22 is inserted with the fixed pin two 221 at the left end of the right middle layer lower die 22, the fixed pin two 221 drives the locking pin one 241 to move to the front side through the inclined surface at the rear end of the locking pin one 241, the spring one 242 is stretched, the locking pin one 241 drives the fixed block one 243 to move to the front side, when the locking pin one 241 is in place with the locking slot one 244, the spring one 242 drives the fixed block one 243 and the locking pin one 241 to move to the rear side, the locking pin one 241 is inserted with the locking slot one 244, and the locking of the fixed pin two 221 and the fixed slot two 222 is realized; when the assembled and aligned middle layer upper die 12 and middle layer lower die 22 are assembled, the bolt 252 and the fixed pin four 254 are driven to move downwards by the middle layer upper die 12, the bolt 252 is inserted with the insertion slot 251, and meanwhile the fixed pin four 254 is inserted with the fixed slot four 253, in the process that the fixed pin four 254 moves downwards, the fixed pin four 254 drives the locking pin two 261 to move to the front side through the inclined surface at the rear end of the locking pin two 261, the spring two 262 is stretched, the locking pin two 261 drives the fixed block two 263 to move to the front side, when the locking pin two 261 is in place with the locking slot two 264, the spring two 262 drives the fixed block two 263 and the locking pin two 261 to move to the rear side, the locking pin two 261 is inserted with the locking slot two 264, and the locking of the middle layer upper die 12 and the middle layer lower die 22 is realized.

[0048] The utility model discloses, through locking groove one 244 and locking pin one 241 cooperation, realize the locking and the unlocking between adjacent middle layer lower mould 22, through locking pin two 261 and locking groove two 264 cooperation, realize the locking and the unlocking between the alignment middle layer upper mould 12 and middle layer lower mould 22, thereby realize the modularization dismounting of cooling mould, through the number of middle layer upper mould 12 and middle layer lower mould 22 increase or decrease, realize or reduce the time of the material cooling of extrusion forming, satisfy the different demand of different raw materials to cooling time.

[0049] The gradient cooling forming assembly 4 includes a water outlet pipe 414, a cooling pipe one 415, a cooling pipe two 416 and a cooling pipe three 423, the inside of the middle layer lower mould 22 is provided with the cooling pipe one 415 and the cooling pipe two 416, the left end of the middle layer lower mould 22 is provided with a water inlet one 411 communicated with the cooling pipe one 415, the front side of the upper end of the middle layer lower mould 22 is provided with a water outlet one 412 communicated with the cooling pipe one 415, the inside of the middle layer upper mould 12 is provided with the cooling pipe three 423, the front side of the lower end of the middle layer upper mould 12 is provided with a water inlet three 421 communicated with the cooling pipe three 423, the rear side of the lower end of the middle layer upper mould 12 is provided with a water outlet three 422 communicated with the cooling pipe three 423, the rear side of the upper end of the middle layer lower mould 22 is provided with a water inlet two 413 communicated with the cooling pipe two 416, the right end of the middle layer lower mould 22 is provided with the water outlet pipe 414 communicated with the cooling pipe two 416, and the water outlet pipe 414 is inserted with the water inlet one 411 of the adjacent middle layer lower mould 22.

[0050] In the utility model, the cooling water flows through the water outlet one 412 and the water inlet three 421 into the cooling pipe three 423 from the water inlet one 411 through the cooling pipe one 415, the cooling water in the cooling pipe three 423 flows into the cooling pipe two 416 through the water inlet two 413, and finally the cooling water flows into the water inlet one 411 of the adjacent middle layer lower mould 22 through the water outlet pipe 414, realizes the transmission of the cooling water, the cooling water enters from the leftmost water inlet one 411, and finally flows out from the rightmost water outlet pipe 414, the cooling water absorbs heat continuously during the flowing process from left to right, the temperature of the cooling water gradually increases from left to right, the cooling water absorbing the temperature of the material stably and gradually reduces during the moving process of the material from the extrusion head 10 from right to left, realizes the gradient cooling and temperature reduction of the material, and prevents the deformation of the material due to thermal expansion and cold contraction caused by the rapid cooling of the material.

[0051] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features therein can be replaced by equivalents; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An extrusion molding die having a heating and cooling function, comprising a cooling mold, characterized by, The gradient cooling forming assembly (4), the fixing assembly one, the fixing assembly two, the fixing pin two (221), the fixing pin three (231) and the gradient cooling forming assembly (4) are further included. The cooling mold is provided with an extrusion head (10) on the right side; the extrusion head (10) is connected with an extruder for heating extrusion on the right end; The cooling mold comprises a plurality of upper molds (1) and a plurality of lower molds (2) corresponding to the upper molds (1); the inner sides of the upper molds (1) and the lower molds (2) are provided with the gradient cooling forming assembly (4) for gradient cooling of the extrusion formed material; the fixing assembly two is arranged between the upper mold (1) and the lower mold (2) for fixing the corresponding upper mold (1) and lower mold (2); the alignment assembly is arranged between the adjacent upper molds (1), the adjacent lower molds (2) and the corresponding upper mold (1) and lower mold (2) for alignment assembly; The lower mold (2) comprises an outer lower mold (21), an inner lower mold (23) and a plurality of middle lower molds (22) between the outer lower mold (21) and the inner lower mold (23); the outer lower mold (21) is provided with a fixing groove one (211) on the right end; the middle lower mold (22) is fixedly connected with the fixing pin two (221) on the left end, and the middle lower mold (22) is provided with a fixing groove two (222) on the right end; the inner lower mold (23) is fixedly connected with the fixing pin three (231) on the left end; the fixing groove one (211) on the right end of the outer lower mold (21) is inserted with the fixing pin two (221) on the left end of the middle lower mold (22); the fixing groove two (222) on the right end of the middle lower mold (22) is inserted with the fixing pin three (231) on the left end of the inner lower mold (23); the fixing pin two (221) and the fixing groove two (222) between the adjacent middle lower molds (22) are inserted; the fixing groove one (211) is provided with the fixing assembly one on the front side for locking the fixing groove one (211) and the fixing pin two (221), and the middle lower mold (22) is connected with the fixing assembly one on the front end for locking the fixing pin two (221) and the fixing groove two (222); the fixing pin three (231) is provided with the fixing assembly one on the front end for locking the fixing groove two (222) and the fixing pin three (231). The upper mold (1) comprises an outer upper mold (11), an inner upper mold (13) and a plurality of middle upper molds (12) between the outer upper mold (11) and the inner upper mold (13), the outer upper mold (11) is connected on the upper end of the outer lower mold (21) through the fixing assembly two, and the middle upper mold (12) is connected on the upper end of the corresponding middle lower mold (22) through the fixing assembly two; the inner upper mold (13) is connected on the upper end of the inner lower mold (23) through the fixing assembly two.

2. The extrusion molding die having a heating and cooling function according to claim 1, wherein The alignment assembly comprises T-shaped block two (321), T-shaped block three (331) and T-shaped block four (342), the right end of the outer layer upper die (11) and the outer layer lower die (21) is provided with a T-shaped groove one (311); the left end of the middle layer upper die (12) and the middle layer lower die (22) is fixedly connected with T-shaped block two (321), and the right end of the middle layer upper die (12) and the middle layer lower die (22) is provided with a T-shaped groove two (322); the left end of the inner layer upper die (13) and the inner layer lower die (23) is fixedly connected with T-shaped block three (331); the T-shaped groove one (311) at the right end of the outer layer upper die (11) is inserted with the T-shaped block two (321) at the left end of the middle layer upper die (12); the T-shaped groove one (311) at the right end of the outer layer lower die (21) is inserted with the T-shaped block two (321) at the left end of the middle layer lower die (22); the T-shaped groove two (322) at the right end of the middle layer upper die (12) is inserted with the T-shaped block three (331) at the left end of the inner layer upper die (13); the T-shaped groove two (322) at the right end of the middle layer lower die (22) is inserted with the T-shaped block three (331) at the left end of the inner layer lower die (23); the T-shaped block two (321) between adjacent middle layer upper dies (12) is inserted with the T-shaped groove two (322); the T-shaped block two (321) between adjacent middle layer lower dies (22) is inserted with the T-shaped groove two (322); the lower end of the outer layer upper die (11), the middle layer upper die (12) and the inner layer upper die (13) is fixedly connected with the T-shaped block four (342) in front and back symmetry, the upper end of the outer layer lower die (21), the middle layer lower die (22) and the inner layer lower die (23) is provided with the T-shaped groove four (341) in front and back symmetry, and the T-shaped groove four (341) is inserted with the T-shaped block four (342).

3. The extrusion molding die having a heating and cooling function according to claim 1, wherein The first fixing assembly comprises a locking pin one (241), a spring one (242) and a fixing block one (243), the front end of the outer layer lower die (21) and the middle layer lower die (22) is slidably connected with the locking pin one (241); the front end of the fixed pin two (221) and the fixed pin three (231) is provided with a locking groove one (244); the locking pin one (241) is inserted with the locking groove one (244); the front end of the locking pin one (241) is fixedly connected with the fixing block one (243); the front end of the outer layer lower die (21) and the middle layer lower die (22) is fixedly connected with the spring one (242), and the front end of the spring one (242) is fixedly connected with the fixing block one (243).

4. The extrusion molding die having a heating and cooling function according to claim 3, wherein The rear end of the locking pin one (241) is provided with an inclined surface.

5. The extrusion molding die having a heating and cooling function according to claim 1, wherein The second fixing assembly comprises a bolt (252), a fixed pin four (254) and a locking assembly, the lower end of the outer layer upper die (11), the middle layer upper die (12) and the inner layer upper die (13) is fixedly connected with the bolt (252) and the fixed pin four (254); the upper end of the outer layer lower die (21), the middle layer lower die (22) and the inner layer lower die (23) is provided with a plug groove (251) and a fixed groove four (253); the plug groove (251) is inserted with the bolt (252); the fixed groove four (253) is inserted with the fixed pin four (254); the front end of the outer layer lower die (21), the middle layer lower die (22) and the inner layer lower die (23) is connected with the locking assembly.

6. The extrusion molding die having a heating and cooling function according to claim 5, wherein The locking assembly comprises a locking pin two (261), a spring two (262) and a fixed block two (263), the front end of the outer lower mold (21), the middle lower mold (22) and the inner lower mold (23) is slidably connected with the locking pin two (261); the side wall of the fixed pin four (254) is provided with a locking groove two (264); the locking pin two (261) is inserted with the locking groove two (264); the front end of the locking pin two (261) is fixedly connected with the fixed block two (263); the front end of the outer lower mold (21), the middle lower mold (22) and the inner lower mold (23) is fixedly connected with the spring two (262), and the front end of the spring two (262) is fixedly connected with the fixed block two (263).

7. The extrusion molding die having a heating and cooling function according to claim 6, wherein The rear end of the locking pin two (261) is provided with an inclined surface.

8. The extrusion molding mold having a heating and cooling function according to claim 1, wherein The gradient cooling forming assembly (4) comprises a water outlet pipeline (414), a cooling pipeline one (415), a cooling pipeline two (416) and a cooling pipeline three (423), the inner side of the middle lower mold (22) is provided with the cooling pipeline one (415) and the cooling pipeline two (416); the left end of the middle lower mold (22) is provided with a water inlet one (411) communicated with the cooling pipeline one (415); the front side of the upper end of the middle lower mold (22) is provided with a water outlet one (412) communicated with the cooling pipeline one (415); the inner side of the middle upper mold (12) is provided with the cooling pipeline three (423); the lower end of the middle upper mold (12) is provided with a water inlet three (421) communicated with the cooling pipeline three (423) on the front side; the lower end of the middle upper mold (12) is provided with a water outlet three (422) communicated with the cooling pipeline three (423) on the rear side; the upper end of the middle lower mold (22) is provided with a water inlet two (413) communicated with the cooling pipeline two (416) on the rear side; the right end of the middle lower mold (22) is provided with the water outlet pipeline (414) communicated with the cooling pipeline two (416); the water outlet pipeline (414) is inserted with the water inlet one (411) of the adjacent middle lower mold (22).

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