CN209812976U

CN209812976U - Sole injection mold

Info

Publication number: CN209812976U
Application number: CN201920556446.0U
Authority: CN
Inventors: 叶定宪
Original assignee: Wenzhou Dehao Shoes Co Ltd
Current assignee: Wenzhou Dehao Shoes Co Ltd
Priority date: 2019-04-23
Filing date: 2019-04-23
Publication date: 2019-12-20
Anticipated expiration: 2029-04-23

Abstract

The utility model relates to a sole injection mold, including last mould and lower mould, it cooperatees with the lower mould to go up the mould, be provided with the mold core on the last mould, be provided with the die cavity on the lower mould, the mold core matches with the die cavity and combines to form and holds the material chamber, it is provided with four fixed through hole of group to go up the symmetry on mould and the lower mould, upward be provided with the fixing device who is used for location and fixed mould and lower mould between mould and the lower mould, fixing device is including the locating component who is used for fixing a position the mould and lower mould, the spacing subassembly that is used for fixed positioning component, locating component and spacing subassembly and fixed through hole cooperate, locating component run through set up in the fixed through hole of lower mould and with the fixed through hole cooperation of last mould is connected, spacing subassembly set up in the fixed. The fixing device is arranged, so that the upper die and the lower die of the die are more accurately positioned and the die is more tightly closed.

Description

Sole injection mold

Technical Field

The utility model relates to a sole injection mold.

Background

The method of injection molding is generally adopted when shoe soles are produced in batches, a mold core and a mold cavity are respectively arranged on an upper mold and a lower mold, the mold core and the mold cavity are matched to form a material containing cavity, materials are injected into the material containing cavity and then are cooled and molded, and the molded shoe soles are taken out after the mold is opened. The traditional sole injection mold is provided with a cylindrical guide pillar and a guide pillar groove on an upper mold and a lower mold respectively, the upper mold and the lower mold are positioned when the mold is closed through the insertion of the cylindrical guide pillar and the guide pillar groove, but a certain gap exists between the cylindrical guide pillar and the guide pillar groove, the positioning precision is not high, and the mold closing precision is low when the mold is closed; meanwhile, when the die is closed, the upper die and the lower die are not completely closed due to the integral vibration of the machine body, a gap is generated, the injection molded sole is easy to generate an overflow edge, tools for trimming the sole are added, the product quality is affected, and the working procedures are increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems existing in the prior art and providing a sole injection mold.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a sole injection mold, includes mould and lower mould, it cooperatees with the lower mould to go up the mould, be provided with the mold core on going up the mould, be provided with the die cavity on the lower mould, the mold core matches with the die cavity and forms and hold the material chamber, it is provided with four fixed through holes to go up the symmetry on mould and the lower mould, go up and be provided with the fixing device who is used for location and fixed mould and lower mould between mould and the lower mould, fixing device is including the locating component who is used for the location to go up mould and lower mould, the spacing subassembly that is used for fixed positioning component, locating component and spacing subassembly and fixed through hole match, locating component run through set up in the fixed through hole of lower mould and with the fixed through hole cooperation of last mould is connected, spacing subassembly set up in the.

By adopting the technical scheme, during die assembly, the upper die is matched with the lower die, the die core of the upper die is matched with the die cavity of the lower die to form the material containing cavity, the melted rubber material is injected into the material containing cavity, and then the die is cooled and opened to form the sole. Go up and be provided with fixing device between mould and the lower mould, fixing device's locating component and spacing subassembly cooperate with last mould and the fixed through-hole on the lower mould, during the compound die, go up the fixed through-hole looks butt on mould and the lower mould, the locating component who sets up in the fixed through-hole of lower mould runs through the fixed through-hole of last mould and is connected with the spacing subassembly cooperation of last mould fixed through-hole department, fixing device's locating component fixes last mould and lower mould during the make compound die, spacing subassembly of rethread carries out spacing fixed to locating component, realize fixing device to the location and the fixed of last mould and lower mould, make and go up mould and lower mould compound die complete, it leads to the sole to mould plastics and forms.

The utility model discloses further set up: the locating component comprises a spreading part, a first inclined pressing block and a second inclined pressing block, two sides of the spreading part are arranged to be inclined planes, the first inclined pressing block and the second inclined pressing block are symmetrically arranged on two sides of the spreading part and are in linkage fit with the spreading part through a sliding unit, the sliding unit comprises a sliding groove arranged on the two inclined planes of the spreading part, a sliding block arranged on one side of the spreading part and corresponding to the first inclined pressing block and the second inclined pressing block, the sliding groove is matched with the sliding block, the first inclined pressing block and the second inclined pressing block are arranged on an inverted trapezoidal table which is gradually reduced from the top end to the tail end, the top ends of the first inclined pressing block and the second inclined pressing block are provided with flange clamping portions, and the flange clamping portions are matched with the limiting component.

By adopting the technical scheme, the positioning assembly comprises a spreading piece which is arranged in a triangular prism shape, and a first inclined pressing block and a second inclined pressing block which are in linkage fit with the spreading piece through a sliding unit, the first inclined pressing block and the second inclined pressing block are respectively arranged on the inclined planes at the two sides of the spreading piece, one side of the first inclined pressing block and one side of the second inclined pressing block, which correspond to the spreading piece, are provided with sliding grooves, the sliding blocks are matched with the sliding grooves, when the mold is closed, the spreading piece is forced to move along the length direction of the fixed through hole to drive the first inclined pressing block and the second inclined pressing block to move, so that the spreading piece drives the first inclined pressing block and the second inclined pressing block to penetrate through the fixed through hole of the upper mold and the lower mold, and flange clamping parts on the first inclined pressing block and the second inclined pressing block are matched with the limiting assembly, and the limiting assembly has a limiting effect on the first inclined pressing block and the second inclined pressing block, through the slip unit between piece and first barocline piece and the second barocline piece of strutting, the relative motion is still done to the piece atress of strutting, first barocline piece and second barocline piece slide on the slide way of strutting both sides through the sliding block, expand towards both sides and open, until the lateral wall of first barocline piece and second barocline piece and fixed through hole's inside wall looks butt, the interior bottom surface of the flange card bottom on first barocline piece and the second barocline piece passes through spacing subassembly and last mould back bottom surface looks butt simultaneously, realize that locating component will go up mould and lower mould and fix a position fixed effect.

The utility model discloses further set up: the limiting component comprises a roller, a limiting stopper and a roller groove, the roller is arranged on one side of the flange clamping part corresponding to the tail ends of the first inclined pressing block and the second inclined pressing block, the roller groove is arranged on two sides of the fixing through hole corresponding to the rear bottom surface of the lower die, the roller is matched with the roller groove and moves relatively along the length direction of the roller groove, the limiting stopper is arranged at the fixing through hole corresponding to the rear bottom surface of the lower die, and the limiting stopper is respectively matched with the first inclined pressing block and the second inclined pressing block.

By adopting the technical scheme, the limiting assembly comprises the roller arranged on the flange clamping part of the first inclined pressing block and the second inclined pressing block, the roller grooves arranged on two sides of the fixing through hole on the rear bottom surface of the lower die, and the limiting blocking piece arranged on the fixing through hole and in the position where the fixing through hole is matched with the flange clamping part on the first inclined pressing block and the second inclined pressing block, the limiting blocking piece limits the first inclined pressing block and the second inclined pressing block through the flange clamping part on the first inclined pressing block and the second inclined pressing block, the first inclined pressing block and the second inclined pressing block slide on two sides of the strutting piece through the sliding units and expand towards two sides, the roller is clamped into the roller grooves and slides along the roller grooves, the friction caused by the direct butt sliding of one side of the upper die corresponding to the flange clamping part and the rear bottom surface of the upper die is reduced, the abrasion between the die and the flange clamping part is.

The utility model discloses further set up: the fixing device further comprises a positioning push plate arranged on one side of the rear bottom surface of the lower die, the spreading piece corresponds to a connecting column arranged on one side of the rear bottom surface of the lower die, and the connecting column penetrates through the fixing through hole in the lower die and is connected with the positioning push plate in a matched mode.

Through adopting above-mentioned technical scheme, fixing device's location catch bar is connected with the spliced pole cooperation on the piece of strutting, and the opposite side that the location catch bar corresponds the spliced pole is connected with external power drive arrangement cooperation, and power drive arrangement drive location catch bar drives the piece of strutting of being connected with the spliced pole and is the relative motion along fixed through hole length direction for the locating component synchronous motion in four fixed through holes of group. The power drive means may be a cylinder.

The utility model discloses further set up: the cooling structure is arranged in the lower die and comprises a cooling pipeline and a pipeline interface, the cooling pipeline is arranged in the lower die plate and arranged along the die cavity, and the pipeline structure is connected with the cooling pipeline and arranged on the outer side face of the lower die.

Through adopting above-mentioned technical scheme, work as the cope match-die and lower mould compound die, mold core and die cavity phase-match, the material injection is advanced and is held the material intracavity, be provided with cooling conduit in the lower mould, the pipeline interface, cooling conduit passes through the external cooling device of pipeline interface connection, cooling device is with cold wind or cooling water and lower mould through heat exchange, can cool down the cooling to the lower mould, and cooling conduit sets up along the die cavity, cold wind or cooling water can cool off the die cavity when passing through in the cooling conduit, thereby cool down the cooling to the material of holding the material intracavity, the shaping cycle of reducible material, and the production efficiency is improved.

The utility model discloses further set up: the cooling pipeline sets up to two at least, the cooling pipeline sets up respectively in the die cavity both sides, the pipeline interface includes import and export, import and export set up respectively in the cooling pipeline both ends, the import sets up on the adjacent both sides face of lower mould, the export sets up on the adjacent both sides face of lower mould, import and export are the diagonal angle setting.

By adopting the technical scheme, two cooling pipelines are arranged and are arranged on two sides along the die cavity, the two cooling pipelines are respectively connected with an inlet and a pipeline interface, the inlet is connected with an external cooling device, and the outlet discharges cold air or cooling water after heat exchange; set up two cooling tube, shorten the pipeline length who encircles the die cavity for cold wind or cooling water can carry out abundant heat exchange in cooling tube, shorten cooling time, shorten production shaping cycle, improve cooling efficiency.

The present invention will be further described with reference to the accompanying drawings and the detailed description.

Drawings

Fig. 1 is an exploded view of the overall structure of the embodiment of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

fig. 3 is an exploded view of the overall structure of the embodiment of the present invention;

fig. 4 is an exploded view of a partial structure of an embodiment of the present invention;

fig. 5 is a schematic overall structure diagram of an embodiment of the present invention;

fig. 6 is a partial structural sectional view of an embodiment of the present invention;

the reference numbers in the figures mean: the device comprises an upper die-1, a die core-12, a lower die-2, a die cavity-21, a material containing cavity-3, a fixing through hole-4, a fixing device-5, a positioning component-51, a spreading component-511, a connecting column-5111, a first inclined pressing block-512, a second inclined pressing block-513, a sliding unit-514, a sliding groove-5141, a sliding block-5142, a flange clamping part-515, a limiting component-52, a roller-521, a roller groove-522, a limiting stopper-523, a positioning pushing plate-53, a cooling structure-6, a cooling pipeline-61, a pipeline interface-62, an inlet-621 and an outlet-622.

Detailed Description

The present embodiment is only an explanation of the present embodiment, and it is not a limitation of the present embodiment, and a person skilled in the art can make modifications without inventive contribution to the present embodiment as needed after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present embodiment.

Referring to the accompanying drawings 1-6, the embodiment discloses a sole injection mold, which comprises an upper mold 1 and a lower mold 2, wherein the upper mold 1 is matched with the lower mold 2, a mold core 12 is arranged on the upper mold 1, a mold cavity 21 is arranged on the lower mold 2, the mold core 12 is matched with the mold cavity 21 and forms a material accommodating cavity 3, four groups of fixing through holes 4 are symmetrically arranged on the upper mold 1 and the lower mold 2, a fixing device 5 for positioning and fixing the upper mold 1 and the lower mold 2 is arranged between the upper mold 1 and the lower mold 2, the fixing device 5 comprises a positioning component 51 for positioning the upper mold 1 and the lower mold 2 and a limiting component 52 for fixing the positioning component 51, the positioning component 51 and the limiting component 52 are matched with the fixing through holes 4, the positioning component 51 is arranged in the fixing through holes 4 of the lower mold 2 in a penetrating manner and is matched and connected with the, the limiting component 52 is arranged at the fixing through hole 4 on the rear bottom surface of the upper die 1 and is connected with the positioning component 51 in a matching way. By adopting the technical scheme, during die assembly, the upper die 1 is matched with the lower die 2, the die core 12 of the upper die 1 is matched with the die cavity 21 of the lower die 2 to form the material accommodating cavity 3, the melted rubber material is injected into the material accommodating cavity 3, and then the die is cooled and opened to form the sole. Go up and be provided with fixing device 5 between mould 1 and the lower mould 2, fixing device 5's locating component 51 and spacing subassembly 52 cooperate with last mould 1 and the fixed through hole 4 on the lower mould 2, during the compound die, go up mould 1 and the fixed through hole 4 looks butt on the lower mould 2, the locating component 51 who sets up in lower mould 2 fixed through hole 4 runs through the fixed through hole 4 of last mould 1 and is connected with the spacing subassembly 52 cooperation of last mould 1 fixed through hole 4 department, make fixing device 5's locating component 51 fix last mould 1 and lower mould 2 during the compound die, spacing fixed is carried out to locating component 51 through spacing subassembly 52 to the rethread, realize fixing device 5 to the location and the fixing of last mould 1 and lower mould 2, make and go up mould 1 and lower mould 2 compound die completely, avoid going up the space between mould 1 and the lower mould 2 and lead to.

The embodiment further provides that: locating component 51 is including strutting piece 511, first briquetting 512 and second briquetting 513 to one side, the both sides of strutting piece 511 set up to the inclined plane, first briquetting 512 and second briquetting 513 symmetry set up in strutting piece 511 both sides and through sliding element 514 with strut a 511 linkage cooperation, sliding element 514 is including setting up sliding tray 5141 on strutting piece 511 two inclined planes, set up in first briquetting 512 and second briquetting 513 correspond the sliding block 5142 on strutting piece 511 one side, sliding tray 5141 and sliding block 5142 phase-match, first briquetting 512 and second briquetting 513 are the trapezoidal platform setting of falling gradually diminishing from the top to the tail end, the top of first briquetting 512 and second briquetting 513 is provided with flange card portion 515, flange card portion 515 cooperatees with spacing component 52. By adopting the above technical scheme, the positioning assembly 51 comprises a strut 511 arranged in a triangular prism shape, and a first inclined pressing block 512 and a second inclined pressing block 513 linked and matched with the strut 511 through a sliding unit 514, the first inclined pressing block 512 and the second inclined pressing block 513 are respectively arranged on the inclined surfaces of both sides of the strut 511, one sides of the first inclined pressing block 512 and the second inclined pressing block 513 corresponding to the strut 511 are provided with sliding blocks 5142, the two inclined surfaces of the strut 511 corresponding to the first inclined pressing block 512 and the second inclined pressing block 513 are provided with sliding grooves 5141, the sliding blocks 5142 are matched with the sliding grooves 5141, when the mold is closed, the strut 511 is forced to move along the length direction of the fixed through hole 4 to drive the first inclined pressing block 512 and the second inclined pressing block to move, so that the strut 511 drives the first inclined pressing block 512 and the second inclined pressing block 513 to penetrate through the fixed through holes 4 of the upper mold 1 and the lower mold 2, and the flange clamping parts 515 on the first inclined pressing block 512 and the second inclined pressing block 513 are matched with the limiting assembly 52, the limiting component 52 limits the first oblique pressing block 512 and the second oblique pressing block 513, the supporting piece 511 is still stressed to move relatively through the sliding unit 514 between the supporting piece 511 and the first oblique pressing block 512 and the second oblique pressing block 513, the first oblique pressing block 512 and the second oblique pressing block 513 slide on the sliding blocks 5142 on the two sides of the supporting piece 511 through the sliding blocks 5142 and expand towards the two sides until the outer side walls of the first oblique pressing block 512 and the second oblique pressing block 513 are abutted against the inner side walls of the fixing through holes 4, meanwhile, the inner bottom surfaces of the flange clamping portions 515 on the first oblique pressing block 512 and the second oblique pressing block 513 are abutted against the rear bottom surface of the upper die 1 through the limiting component 52, and the effect that the positioning component 51 positions and fixes the upper die 1 and the lower die 2 is achieved.

The embodiment further provides that: the limiting component 52 includes a roller 521, a limiting stopper 523 and a roller groove 522, the roller 521 is disposed at one side of the flange clamping portion 515 corresponding to the tail ends of the first and second inclined pressing blocks 512 and 513, the roller groove 522 is disposed at two sides of the fixing through hole 4 corresponding to the rear bottom surface of the lower die 2, the roller 521 is matched with the roller groove 522 and moves relatively along the length direction of the roller groove 522, the limiting stopper 523 is disposed at the fixing through hole 4 corresponding to the rear bottom surface of the lower die 2, and the limiting stopper 523 is respectively matched with the first and second inclined pressing blocks 512 and 513. By adopting the above technical scheme, the limiting component 52 comprises a roller 521 arranged on the flange clamping part 515 of the first inclined pressing block 512 and the second inclined pressing block 513, roller grooves 522 arranged on two sides of the fixing through hole 4 on the rear bottom surface of the lower die 2, and a limiting stopper 523 arranged on the fixing through hole 4 and matched with the flange clamping part 515 on the first inclined pressing block 512 and the second inclined pressing block 513, wherein the limiting stopper 523 limits the first inclined pressing block 512 and the second inclined pressing block 513 by clamping the flange clamping part 515 on the first inclined pressing block 512 and the second inclined pressing block 513, the first inclined pressing block 512 and the second inclined pressing block 513 slide on two sides of the expanding part 511 through the sliding unit 514 and expand towards two sides, the roller 521 is clamped into the roller grooves 522 and slides along the roller grooves 522, so that friction caused by direct abutting and sliding of one side of the flange clamping part 515 corresponding to the upper die 1 and the rear bottom surface of the upper die 1 is reduced, and abrasion between the die and the flange clamping part 515 is reduced, the service life of the die is prolonged.

The embodiment further provides that: fixing device 5 still including set up in the location slurcam 53 of back bottom surface one side of lower mould 2, prop out piece 511 and correspond back bottom surface one side of lower mould 2 is provided with spliced pole 5111, spliced pole 5111 runs through on the lower mould 2 fixing hole 4 and be connected with location slurcam 53 cooperation. Through adopting above-mentioned technical scheme, the location pushing plate 53 of fixing device 5 is connected with the spliced pole 5111 cooperation on the piece 511 of strutting, and the opposite side that the location pushing plate 53 corresponds spliced pole 5111 is connected with external power drive arrangement cooperation, and power drive arrangement drive location pushing plate 53 drives the piece 511 of strutting who is connected with spliced pole 5111 and is done along the relative motion of fixed through hole 4 length direction for the locating component 51 synchronous motion in four groups of fixed through hole 4. The power drive means may be a cylinder.

The embodiment further provides that: be provided with cooling structure 6 in the lower mould 2, cooling structure 6 includes cooling duct 61 and pipeline interface 62, cooling duct 61 sets up in the lower mould 2 board and sets up along die cavity 21, pipeline structure is connected with cooling duct 61 and sets up in the lateral surface of lower mould 2. Through adopting above-mentioned technical scheme, as the compound die of upper die 1 and lower mould 2, mold core 12 and die cavity 21 phase-match, the material is injected into and is held in material chamber 3, be provided with cooling tube 61 in the lower mould 2, pipeline interface 62, cooling tube 61 passes through pipeline interface 62 and connects external cooling device, cooling device is with cold wind or cooling water and lower mould 2 through heat exchange, can cool down cooling to lower mould 2, and cooling tube 61 sets up along die cavity 21, cold wind or cooling water can cool off die cavity 21 when passing through from cooling tube 61, thereby cool down the cooling to holding the material in the material chamber 3, the shaping cycle of reducible material, and the production efficiency is improved.

The embodiment further provides that: cooling duct 61 sets up to two at least, cooling duct 61 sets up respectively in die cavity 21 both sides, pipeline interface 62 includes import 621 and export 622, import 621 sets up respectively in cooling duct 61 both ends with export 622, import 621 sets up on the adjacent both sides face of lower mould 2, export 622 sets up on the adjacent both sides face of lower mould 2, import 621 is diagonal setting with export 622. By adopting the technical scheme, two cooling pipelines 61 are arranged and are arranged at two sides along the die cavity 21, the two cooling pipelines 61 are respectively connected with an inlet 621 and a pipeline interface 62, the inlet 621 is connected with an external cooling device, and an outlet 622 discharges cold air or cooling water after heat exchange; set up two cooling tube 61, shorten the pipeline length who encircles die cavity 21 for cold wind or cooling water can carry out abundant heat exchange in cooling tube 61, shorten the cooling time, shorten production molding cycle, improve cooling efficiency.

Although upper mold-1, mold core-12, lower mold-2, mold cavity-21, material accommodating cavity-3, fixing through hole-4, fixing device-5, positioning component-51, spreader-511, connecting column-5111, first oblique pressing block-512, second oblique pressing block-513, sliding unit-514, sliding groove-5141, sliding block-5142, flange clamping part-515, limiting component-52, roller-521, roller groove-522, limiting stopper-523, positioning pushing plate-53, cooling structure-6, cooling pipeline-61, pipeline interface-62, inlet-621 and outlet-622 are more used herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present embodiments; they are to be construed as being without limitation to any one of the additional limitations which are within the spirit of the present embodiments.

Claims

1. The utility model provides a sole injection mold, includes mould and lower mould, it cooperatees with the lower mould to go up the mould, upward be provided with the mold core on the mould, be provided with the die cavity on the lower mould, the mold core matches and forms holding material chamber, its characterized in that with the die cavity: go up the mould and be provided with four fixed through-hole of group of symmetry on the lower mould, go up and be provided with the fixing device who is used for location and fixed mould and lower mould between mould and the lower mould, fixing device including the locating component who is used for the location to go up mould and lower mould, be used for fixed positioning component's spacing subassembly, locating component and spacing subassembly and fixed through-hole cooperate, locating component run through set up in the fixed through-hole of lower mould and with the fixed through-hole cooperation of going up the mould is connected, spacing subassembly set up in go up the fixed through-hole department of mould back bottom surface and be connected with the locating component cooperation.

2. The injection mold for shoe soles according to claim 1, characterized in that: the locating component comprises a spreading part, a first inclined pressing block and a second inclined pressing block, two sides of the spreading part are arranged to be inclined planes, the first inclined pressing block and the second inclined pressing block are symmetrically arranged on two sides of the spreading part and are in linkage fit with the spreading part through a sliding unit, the sliding unit comprises a sliding groove arranged on the two inclined planes of the spreading part, a sliding block arranged on one side of the spreading part and corresponding to the first inclined pressing block and the second inclined pressing block, the sliding groove is matched with the sliding block, the first inclined pressing block and the second inclined pressing block are arranged on an inverted trapezoidal table which is gradually reduced from the top end to the tail end, the top ends of the first inclined pressing block and the second inclined pressing block are provided with flange clamping portions, and the flange clamping portions are matched with the limiting component.

3. The injection mold for shoe soles according to claim 2, characterized in that: the limiting component comprises a roller, a limiting stopper and a roller groove, the roller is arranged on one side of the flange clamping part corresponding to the tail ends of the first inclined pressing block and the second inclined pressing block, the roller groove is arranged on two sides of the fixing through hole corresponding to the rear bottom surface of the lower die, the roller is matched with the roller groove and moves relatively along the length direction of the roller groove, the limiting stopper is arranged at the fixing through hole corresponding to the rear bottom surface of the lower die, and the limiting stopper is respectively matched with the first inclined pressing block and the second inclined pressing block.

4. A sole injection mold according to claim 3, characterized in that: the fixing device further comprises a positioning push plate arranged on one side of the rear bottom surface of the lower die, the spreading piece corresponds to a connecting column arranged on one side of the rear bottom surface of the lower die, and the connecting column penetrates through the fixing through hole in the lower die and is connected with the positioning push plate in a matched mode.

5. The injection mold for shoe soles according to claim 1, characterized in that: the cooling structure is arranged in the lower die and comprises a cooling pipeline and a pipeline interface, the cooling pipeline is arranged in the lower die plate and arranged along the die cavity, and the pipeline interface is connected with the cooling pipeline and arranged on the outer side face of the lower die.

6. The injection mold for shoe soles according to claim 5, characterized in that: the cooling pipelines are arranged at least in two numbers, the cooling pipelines are respectively arranged on two sides of the die cavity, the pipeline interfaces comprise inlets and outlets, the inlets and the outlets are respectively arranged at two ends of the cooling pipelines, the inlets are arranged on two adjacent side faces of the lower die plate, the outlets are arranged on two adjacent side faces of the lower die plate, and the inlets and the outlets are arranged in opposite angles.