CN112895360A

CN112895360A - Anti-deformation cooling mechanism of large turnover box die

Info

Publication number: CN112895360A
Application number: CN202110173298.6A
Authority: CN
Inventors: 张策旗
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-08
Filing date: 2021-02-08
Publication date: 2021-06-04
Anticipated expiration: 2041-02-08
Also published as: CN112895360B

Abstract

The invention discloses an anti-deformation cooling mechanism of a large turnover box die, which comprises a lower die base, a core arranged on the lower die base, a guide pillar arranged on the lower die base, an upper die base corresponding to the lower die base, a filling port arranged on the upper die base and an anti-deformation cooling structure arranged in the lower die base, wherein the core is arranged on the lower die base; the anti-deformation cooling structure comprises a first cavity arranged in the core, a through groove arranged on the side wall of the first cavity, a first limiting block arranged in the first cavity, a side template capable of moving back and forth in the first cavity, a convex block arranged on the side template and corresponding to the through groove, an evaporative cooling structure arranged in the side template and the core, and a demoulding structure used for driving the side template; according to the invention, by arranging the side die plates, the deformation of the product is effectively avoided in a mode of carrying out small-area preferential demolding and then carrying out integral demolding by means of inward retraction of the side die plates.

Description

Anti-deformation cooling mechanism of large turnover box die

Technical Field

The invention belongs to the technical field of mold production, and particularly relates to an anti-deformation cooling mechanism of a large turnover box mold.

Background

In the production of mould, especially in the mould production process of large-scale turnover case, because the last distribution of large-scale turnover case finished product has densely covered through-hole, the mould that so commonly used is provided with small-size lug at the surface of core, thereby make the product surface possess the through-hole, but when this mode drawing of patterns, through the mode of drawing outwards by force, thereby lead to the excessive deformation of through-hole department easily and lead to the cracked possibility of thinner lateral wall, thereby lead to scrapping of product, lead to the raw materials extravagant, adopt the mode of ordinary coolant liquid to cool off simultaneously, the slow effect of cooling speed is low.

Disclosure of Invention

The invention provides an anti-deformation cooling mechanism of a large turnover box die, aiming at overcoming the defects of the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: an anti-deformation cooling mechanism of a large-scale turnover box mold comprises a lower mold base, a mold core arranged on the lower mold base, a guide pillar arranged on the lower mold base, an upper mold base corresponding to the lower mold base, a filling port arranged on the upper mold base, and an anti-deformation cooling structure arranged in the lower mold base; the anti-deformation cooling structure comprises a first cavity arranged in the core, a through groove arranged on the side wall of the first cavity, a first limiting block arranged in the first cavity, a side template capable of moving back and forth in the first cavity, a convex block arranged on the side template and corresponding to the through groove, an evaporative cooling structure arranged in the side template and the core, and a demoulding structure used for driving the side template; the side template can move back and forth in the first cavity, so that the side template can move along the direction which is nearly vertical to the surface of an injection product, the side template is demolded along the direction of a product through hole, the possibility of breakage of the side wall of the product caused by hard contact between a convex block on a core and the product caused by forced demolding is avoided, meanwhile, in the demolding process, a convex part for manufacturing a hole on a large-scale turnover box is arranged on the convex block in the mode that the convex block retracts inwards, so that preferential retraction is carried out, the hole part is subjected to preferential demolding, as the two sides of a through groove of the core are supported, the mode that the convex block retracts preferentially to cause large-degree deformation of the product caused by retraction is adopted, the possibility of breakage is avoided, and through the arrangement of the structure, the mold for manufacturing the hole part of the large-scale turnover box on the core is subjected to preferential demolding, the invention adopts the evaporative cooling structure, absorbs a large amount of heat when the liquid state is evaporated into the gaseous state, thereby quickening the cooling of the product, quickly solidifying the product, effectively avoiding the possibility of product deformation and quickening the production efficiency of the equipment.

The evaporative cooling structure comprises a first cooling flow channel arranged in the side template, a second cooling flow channel arranged in the core, a first hose for connecting the first cooling flow channel and the second cooling flow channel, a second cavity arranged in the lower die base, a second hose for communicating the second cavity with the first cooling flow channel, a cooling cavity arranged above the second cavity, a condensation pipe arranged in the cooling cavity, a first communicating pipeline with two ends respectively communicated with the second cavity and the cooling cavity, a water pump arranged in the middle section of the communicating pipeline, a material gathering groove arranged in the core, a third cavity arranged in the core, a first channel for communicating the material gathering groove with the third cavity, a second communicating pipeline for communicating the third cavity with the cooling cavity, and an air extracting pump arranged on the side wall of the cooling cavity, A first support structure for supporting the first and second hoses; firstly, air in the cooling cavity is pumped out through the air pump, so that a negative pressure condition is formed inside, liquid is more easily changed into a gas state under the negative pressure condition, the liquid in the cooling cavity is pumped into the second cavity through the water pump, is diffused into the plurality of second pipelines from the second cavity and then enters the first cooling channel, the second cooling channel is communicated with the first cooling channel through the second hose, so that the liquid flows through the second cooling channel to cool the upper surface of the mold core and enters the material gathering groove to be accumulated, and enters the third cavity along the first channel and finally enters the cooling cavity through the second communicating pipeline, in the process, when the liquid enters the first cooling channel and the second cooling channel, the side mold plate is cooled, at the moment, the liquid in the first cooling channel and the second cooling channel absorbs heat in the first cooling channel, thereby become the gas-liquid mixture state and even gaseous state from complete liquid gradually, will absorb a large amount of heat in liquid to gaseous state's transformation process, the gas-liquid mixture state will finally get into the cooling intracavity through the second intercommunication pipeline, become liquid again from the gaseous state through the condenser pipe, and circulate once more through the water pump, because set up in the whole runner is airtight structure, the event is because the atmospheric pressure in the cooling intracavity is far less than the ordinary pressure, so inside liquid will gasify more easily, absorb the heat more easily, thereby quick cooling has been carried out the mould, thereby the speed of product solidification has been accelerated, thereby make its more rapid finalizing, be difficult to warp more, and the effect of mould production has been accelerated simultaneously.

The second supporting structure comprises a fourth cavity arranged on the side wall of the first cavity, a first sliding block capable of moving back and forth in the fourth cavity, a first elastic piece arranged in the fourth cavity and used for resetting the first sliding block, and a lifting rod arranged on the first sliding block; when the side templates are ejected outwards, the first hose and the second hose extrude the lifting rod, so that the first slider is pushed to move downwards in the fourth cavity, when the side templates retract inwards, the lifting rod is lifted under the action of the first elastic piece, so that the first hose and the second hose are always in a supporting and tensioning state, through the structure, the possibility that the hoses are broken due to mutual friction is effectively guaranteed, the service life of the hoses is effectively guaranteed, the equipment maintenance cost is reduced, the possibility that the hoses break to cause internal air pressure or liquid is avoided, and the stability of equipment is guaranteed.

The demolding structure comprises a first block body arranged on the side template, a fifth cavity body arranged on the side wall of the first cavity body, a sixth cavity body arranged below the fifth cavity body, a lifting plate capable of moving back and forth in the sixth cavity body, a second elastic piece arranged in the sixth cavity body and used for resetting the lifting plate, through holes arranged on the base, second block bodies arranged at two ends of the lifting plate, a third block body arranged on the lifting plate, a clamping port arranged in the first block body, a first extrusion inclined plane arranged on the clamping port, a second extrusion inclined plane arranged on the third block body, a second supporting structure used for supporting the first block body and a jacking structure used for jacking a product; when the upper die base and the lower die base are spliced with each other, the second block is extruded, so that the lifting plate descends to drive the third block to move downwards and move out of the clamping port, the first block moves outwards under the action of the second supporting structure to form a complete core, when the injection molding is completed, the lifting plate drives the third block to move upwards, the first extrusion inclined surface and the second extrusion inclined surface on the third block are in contact with each other, so that the first block is driven to retract inwards by the rising of the third block, namely, a primary demolding process is performed, the moving stability of the side template is effectively ensured through the structure, the demolding effect and the demolding efficiency are ensured, the elastic restoring force of the second elastic element drives the side template when the upper die base and the lower die base are separated, the demolding process of the side template is completed, the post-demolding can be carried out completely, so that the time required by demolding is greatly reduced, and the production efficiency of equipment is effectively improved.

The second supporting structure comprises a fourth block body capable of moving back and forth in a fifth cavity, a first rack arranged on the fourth block body, a second rack arranged on the third block body, and a first gear used for linking the first rack and the second rack; when the third block moves downwards, the second rack moves downwards at the moment, so that the first rack is driven by the first gear to move reversely, the fourth block is lifted, the first block is pushed to move outwards, the side template is reset and is attached to the inner wall of the mold core, a complete mold core is formed, the fourth block moves upwards continuously, and then the fourth block is clamped between the first block and the side wall of the fifth cavity, so that the first block is supported, the side template is attached to the inner wall of the mold core more tightly, extrusion caused by molten liquid in the injection molding process is avoided, the possibility that a bump appears due to the fact that the inner surface of a product is uneven due to inward retraction is further avoided, the quality of the product is guaranteed, and the stability of equipment is improved.

The ejection structure comprises a cover block capable of moving back and forth in the third cavity, an extension pipe arranged in the third cavity, a first groove arranged below the cover block and corresponding to the extension pipe, a communication groove for communicating two adjacent third cavities, a first connecting block arranged in the communication groove and used for connecting two adjacent cover blocks, an ejector block capable of moving back and forth in the third cavity, a second limiting block arranged in the radial direction of the ejector block, a second connecting block arranged in the communication groove and used for connecting two adjacent ejector blocks, a third elastic piece arranged between the ejector block and the cover block, a reset structure for resetting the ejector block and a fixing structure for fixing the ejector block; the cover blocks move synchronously through the arrangement of the first connecting block, the top blocks move synchronously through the arrangement of the second connecting block, after a gas-liquid mixed working medium or a gaseous working medium enters the third cavity, if the working medium is not distributed on the upper surface of the whole core block, the top blocks are limited by the fixed structure and cannot move, so that the first grooves in the cover blocks are sleeved on the extension pipes, an elastic valve body structure is formed between the top blocks and the cover blocks through the third elastic part, the extension pipes are blocked, the gaseous working medium or the gas-liquid mixed working medium cannot enter the cooling cavity and is accumulated below the cover blocks, the working medium can be ensured to be distributed on the upper surface of the whole core block in the accumulation process, heat absorption is carried out, the liquid state is further changed into the gaseous state, when the working medium flows on the upper surface of the whole core block after the working medium is distributed, inside atmospheric pressure will carry out the lifting in step, will promote the cover piece rebound this moment, thereby open the breach and make the working medium get into the cooling intracavity, setting through this structure, the cooling effect of core piece upper surface will effectively be guaranteed, the direct second intercommunication pipeline that is close to marginal part of working medium has been avoided and has got into the cooling intracavity, thereby it is incomplete to lead to the mid portion to cool off, thereby can't play good cooling effect, the possibility that takes place deformation when leading to dividing the mould, the stability of equipment will effectively be guaranteed through the setting of this structure, the even cooling to core piece upper surface has been guaranteed, make the product cooling more even, the quality of product is more stable.

The resetting structure comprises a seventh cavity arranged on the side wall of the third cavity, a second sliding block capable of moving back and forth in the seventh cavity, a first clamping block and a second clamping block which are arranged on the second sliding block, and a third connecting block used for connecting the second sliding block and the lifting plate; the second limiting block and the cover block are clamped between the first clamping block and the second clamping block, and the distance between the first clamping block and the second clamping block is related to the length of a third elastic part; when the lifting plate moves upwards, namely the mold splitting stage, the ejector block is limited by the fixing structure and cannot move, the second sliding block moves upwards along with the lifting plate, the second clamping block arranged on the second sliding block drives the cover plate to move upwards so as to extrude the third elastic piece, so that the ejector block stores force, when the fixing structure removes the fixing of the ejector block, the ejector block is ejected outwards so as to realize mold release, when the upper mold base and the lower mold base are closed again after the mold release is completed, the lifting plate moves downwards so as to drive the second sliding block to move downwards, the first clamping block pulls the ejector block to reset, the cover plate contacts the extension pipe to extrude the third elastic piece, so that the cover plate becomes the blocking extension pipe again, the mutual switching between the actions of the ejector block and the cover plate is realized through the arrangement of the structure, and the stability of the equipment is improved, the production effect is ensured.

The fixing structure comprises a third sliding block capable of moving back and forth in the seventh cavity, an eighth cavity arranged on the side wall of the seventh cavity, a sheet body arranged on the third sliding block, a fourth elastic piece arranged in the eighth cavity and used for resetting the sheet body, a ninth cavity arranged above the eighth cavity, a fourth sliding block capable of moving back and forth in the ninth cavity, a clamping inclined opening arranged on the fourth sliding block, a third extrusion inclined surface arranged on the third sliding block, a fifth elastic piece arranged in the ninth cavity and used for resetting the fourth sliding block, and an embedding opening arranged on the top block; fourth slider joint is in the rabbet of kicking block, thereby spacing the kicking block, the third slider is located the extreme lower position of movable range this moment, the bottom of third slider will outwards expose, when the lifter plate lifting extreme position, be the end stage of die parting promptly, break away from between side form board and the product this moment, the third slider upwards moves under the promotion of lifter plate this moment, cooperation through between third extrusion inclined plane and the joint bevel connection, thereby promote in the fourth slider withdrawal ninth cavity, thereby relieve the fixed to the kicking block, the kicking block will outwards be ejecting this moment, place after the side form board drawing of patterns to the unblock of kicking block promptly through the setting of this structure, thereby the effectual quality and the efficiency of drawing of patterns have effectively been guaranteed to the operation smoothness nature of the effect of having guaranteed the drawing of patterns and equipment.

According to the invention, by arranging the side die plates, the deformation of the product is effectively avoided in a mode of carrying out small-area preferential demolding and then carrying out integral demolding by means of inward retraction of the side die plates.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the upper die holder of the present invention with the upper die holder hidden.

Fig. 3 is a left side view of fig. 2.

Fig. 4 is a schematic perspective cross-sectional view taken along line a-a of fig. 3.

Fig. 5 is a partially enlarged schematic view of a portion a of fig. 4.

Fig. 6 is a partially enlarged schematic view of fig. 5.

Fig. 7 is a partially enlarged schematic view of a portion B in fig. 4.

Fig. 8 is a schematic plan sectional view taken along line a-a of fig. 3.

Fig. 9 is a partially enlarged schematic view of fig. 8.

Fig. 10 is a schematic plan sectional view taken along line B-B in fig. 3.

Detailed Description

As shown in fig. 1-10, the anti-deformation cooling mechanism for the large-scale turnover box mold comprises a lower die holder 1, a core 11, a guide pillar 12, an upper die holder 13, a feeding port 14 and an anti-deformation cooling structure 2; the mold core 11 is arranged on the lower die holder 1, the guide post 12 is arranged on the lower die holder 1, the upper die holder 13 corresponds to the lower die holder 1, the injection port 14 is arranged on the upper die holder 13, and the anti-deformation cooling structure 2 is arranged in the lower die holder 1; the anti-deformation cooling structure 2 comprises a first cavity 21, a through groove 22, a first limiting block 23, a side template 24, a convex block 25, an evaporative cooling structure 3 and a demoulding structure 4; the first cavity 21 is arranged in the core 11, the through groove 22 is arranged on the side wall of the first cavity 21, the first limiting block 23 is arranged in the first cavity 21, the side template 24 can move back and forth in the first cavity 21, the convex block 25 is arranged on the side template 24 and corresponds to the through groove 22, the evaporative cooling structure 3 is arranged in the side template 24 and the core 11, and the demoulding structure 4 is used for driving the side template 24; the side die plate 24 can move back and forth in the first cavity 21, so that the side die plate 24 can move along the direction which is approximately vertical to the surface of an injection product, the side die plate is demolded along the direction of the product through hole 46, the possibility of breakage of the side wall of the product caused by the hard contact between the lug 25 on the core 11 and the product caused by forced demolding is avoided, meanwhile, in the demolding process, in the form of inward retraction of the lug 25, the bulge part for manufacturing the hole on the large-scale turnover box is arranged on the lug 25 to preferentially retract, so that the hole part is preferentially demolded, as the two sides of the through groove 22 of the core 11 are supported, the mode of preferential retraction with small area is adopted, the deformation of the product caused by the retraction of the lug 25 to a large degree is prevented, the possibility of breakage is avoided, and by the arrangement of the structure, the mold of the hole part of the mold core 11 for manufacturing the large-scale turnover box is subjected to preferential demolding, so that the mold core 11 becomes a smooth surface in the demolding direction, and the product is prevented from being damaged.

The evaporative cooling structure 3 comprises a first cooling flow passage 31, a second cooling flow passage 32, a first hose 33, a second cavity 34, a second hose 35, a cooling cavity 36, a condensation pipe 37, a first communicating pipe 38, a water pump 39, a material gathering groove 310, a third cavity 311, a first channel 312, a second communicating pipe 313, an air suction pump 314 and a first supporting structure 5; the first cooling runner 31 is arranged in the side template 24, the second cooling runner 32 is arranged in the mold core 11, the first hose 33 is used for connecting the first cooling runner 31 with the second cooling runner 32, the second cavity 34 is arranged in the lower die base 1, the second hose 35 is used for communicating the second cavity 34 with the first cooling runner 31, the cooling cavity 36 is arranged above the second cavity 34, the condenser pipe 37 is arranged in the cooling cavity 36, two ends of the first communicating pipe 38 are respectively communicated with the second cavity 34 and the cooling cavity 36, the water pump 39 is arranged in the middle section of the communicating pipe, the material gathering groove 310 is arranged in the mold core 11, the third cavity 311 is arranged in the mold core 11, the first channel 312 is used for communicating the material gathering groove 310 with the third cavity 311, the second communicating pipe 313 is used for communicating the third cavity 311 with the cooling cavity 36, the air pump 314 is arranged on the side wall of the cooling cavity 36, and the first supporting structure 5 is used for supporting the first hose 33 and the second hose 35; firstly, the air in the cooling cavity 36 is pumped out by the air pump 314, so that the interior is in a negative pressure condition, the liquid in the negative pressure condition is more easily changed into a gas state, the liquid in the cooling cavity 36 is pumped into the second cavity 34 by the water pump 39, and is diffused into the plurality of second pipelines from the second cavity 34, and then enters the first cooling runner 31, because the second cooling runner 32 is communicated with the first cooling runner 31 through the second hose 35, the liquid flows through the second cooling runner 32 to cool the upper surface of the core 11, and enters the aggregate groove 310, is stacked, and enters the third cavity 311 along the first channel 312, and finally enters the cooling cavity 36 through the second communicating pipeline 313, in the process, when the liquid enters the first cooling runner 31 and the second cooling runner 32, the side die plate 24 is cooled, at this moment, the liquid in the first cooling flow channel 31 and the second cooling flow channel 32 absorbs the heat in the first cooling flow channel 31, thereby gradually changing from a complete liquid state into a gas-liquid mixed state or even a gas state, a large amount of heat is absorbed in the transition process from the liquid state to the gas state, the gas-liquid mixed state finally enters the cooling cavity 36 through the second communicating pipeline 313, the gas state is changed back into the liquid state again through the condensation pipe 37, and the circulation is carried out again through the water pump 39, because the whole flow channel is internally provided with a closed structure, the air pressure in the cooling cavity 36 is far smaller than the normal pressure, the liquid in the inside is easier to gasify, the heat is easier to absorb, thereby the mold is cooled rapidly, the product solidification speed is accelerated, the product is more quickly shaped, the deformation is more difficult, and the mold production effect is accelerated.

The first supporting structure 5 comprises a fourth cavity 51, a first sliding block 52, a first elastic element 53 and a lifting rod 54; the fourth cavity 51 is arranged on the side wall of the first cavity 21, the first slide block 52 can move back and forth in the fourth cavity 51, the first elastic piece 53 is arranged in the fourth cavity 51 and used for resetting the first slide block 52, and the lifting rod 54 is arranged on the first slide block 52; when the side die plates 24 are ejected outwards, the first hose 33 and the second hose 35 extrude the lifting rod 54, so that the first sliding block 52 is pushed to move downwards in the fourth cavity 51, and when the side die plates 24 retract inwards, the lifting rod 54 is lifted under the action of the first elastic piece 53, so that the first hose 33 and the second hose 35 are always in a supporting and tensioning state.

The demolding structure 4 comprises a first block body 41, a fifth cavity 42, a sixth cavity 43, a lifting plate 44, a second elastic piece 45, a through hole 46, a second block body 47, a third block body 48, a clamping interface 49, a first extrusion inclined surface 410, a second extrusion inclined surface 411, a second supporting structure 6 and a jacking structure 7; the first block body 41 is arranged on the side template 24, the fifth cavity body 42 is arranged on the side wall of the first cavity body 21, the sixth cavity body 43 is arranged below the fifth cavity body 42, the lifting plate 44 can move back and forth in the sixth cavity body 43, the second elastic piece 45 is arranged in the sixth cavity body 43 and is used for resetting the lifting plate 44, the through hole 46 is arranged on the base, the second block bodies 47 are arranged at two ends of the lifting plate 44, the third block body 48 is arranged on the lifting plate 44, the clamping opening 49 is arranged in the first block body 41, the first extrusion inclined plane 410 is arranged on the clamping opening 49, the second extrusion inclined plane 411 is arranged on the third block body 48, the second supporting structure 6 is used for supporting the first block body 41, and the jacking structure 7 is used for jacking up a product; when the upper die holder 13 and the lower die holder 1 are spliced with each other, the second block 47 is extruded, so that the lifting plate 44 descends to drive the third block 48 to move downwards and move out of the clamping port 49, the first block 41 moves outwards under the action of the second supporting structure 6 to form a complete die core 11, when the injection molding is completed, the lifting plate 44 drives the third block 48 to move upwards, the first extrusion inclined plane 410 on the third block 48 is in contact with the second extrusion inclined plane 411, so that the first block 41 is driven to retract inwards by the rising of the third block 48, namely, the primary demolding process is realized, the moving stability of the side die plate 24 is effectively ensured through the arrangement of the structure, the demolding effect and the demolding efficiency are ensured, and the side die plate 24 is driven by the elastic restoring force of the second elastic piece 45 during the mold splitting, therefore, when the upper die base 13 is separated from the lower die base 1, the demolding process of the side die plate 24 is completed, and the subsequent complete demolding can be performed, so that the time required by demolding is greatly reduced, and the production efficiency of equipment is effectively improved.

The second support structure 6 comprises a fourth block 61, a first rack 62, a second rack 63, a first gear 64; the fourth block 61 can move back and forth in the fifth cavity 42, the first rack 62 is disposed on the fourth block 61, the second rack 63 is disposed on the third block 48, and the first gear 64 is used for linking the first rack 62 and the second rack 63; when the third block 48 moves downwards, the second rack 63 moves downwards at the moment, so that the first rack 62 is driven by the first gear 64 to move reversely, the fourth block 61 is lifted, the first block 41 is pushed to move outwards, the side template 24 is reset and attached to the inner wall of the mold core 11 to form a complete mold core 11, the fourth block 61 moves upwards continuously and then is clamped between the side walls of the first block 41 and the fifth cavity 42, the first block 41 is supported, the side template 24 and the inner wall of the mold core 11 are attached more tightly, extrusion caused by molten liquid in the injection molding process is avoided, the possibility that the inner surface of a product is uneven and a bump 25 is generated due to inward retraction is further avoided, the quality of the product is guaranteed, and the stability of the equipment is improved.

The material ejecting structure 7 comprises a cover block 71, an extension pipe 72, a first groove 73, a communicating groove 74, a first connecting block 75, an ejecting block 76, a second limiting block 77, a second connecting block 78, a third elastic piece 79, a resetting structure 8 and a fixing structure 9; the cover block 71 can move back and forth in the third cavity 311, the extension pipe 72 is arranged in the third cavity 311, the first groove 73 is arranged below the cover block 71 and corresponds to the extension pipe 72, the communication groove 74 is used for communicating two adjacent third cavities 311, the first connecting block 75 is arranged in the communication groove 74 and is used for connecting two adjacent cover blocks 71, the top block 76 can move back and forth in the third cavity 311, the second limiting block 77 is arranged in the radial direction of the top block 76, the second connecting block 78 is arranged in the communication groove 74 and is used for connecting two adjacent top blocks 76, the third elastic member 79 is arranged between the top block 76 and the cover block 71, the resetting structure 8 is used for resetting the top block 76, and the fixing structure 9 is used for fixing the top block 76; the cover blocks 71 move synchronously through the arrangement of the first connecting block 75, the top blocks 76 move synchronously through the arrangement of the second connecting block 78, after a gas-liquid mixed working medium or a gaseous working medium enters the third cavity 311, if the working medium does not extend over the upper surface of the whole core 11, the top blocks 76 are limited by the fixing structure 9 and cannot move, so that the first grooves 73 on the cover blocks 71 are sleeved on the extension pipes 72, an elastic valve body structure is formed between the top blocks 76 and the cover blocks 71 through the third elastic members 79, so that the extension pipes 72 are blocked, the gaseous working medium or the gas-liquid mixed working medium cannot enter the cooling cavity 36 and is accumulated below the cover blocks 71, the working medium can be ensured to extend over the upper surface of the whole core 11 in the accumulation process to absorb heat, so that the liquid state is further changed into the gaseous state, and after the working medium extends over, when the upper surface of monoblock core 11 all had working medium to flow, inside atmospheric pressure will be in step lifted, will promote the cover piece 71 and upwards remove this moment, thereby open the breach and make in working medium gets into cooling chamber 36, setting through this structure, the cooling effect of 11 upper surfaces of core will effectively be guaranteed, avoided the direct second intercommunication pipeline 313 that is close to marginal portion of working medium to get into in cooling chamber 36, thereby it is incomplete to lead to the mid portion cooling, thereby can't play good cooling effect, the possibility of deformation takes place when leading to the branch mould, the stability of equipment will effectively be guaranteed through the setting of this structure, guaranteed the even cooling to 11 upper surfaces of core, make the product cooling more even, the quality of product is more stable.

The resetting structure 8 comprises a seventh cavity 81, a second sliding block 82, a first clamping block 83, a second clamping block 84 and a third connecting block 85; the seventh cavity 81 is arranged on the side wall of the third cavity 311, the second sliding block 82 can move back and forth in the seventh cavity 81, the first clamping block 83 and the second clamping block 84 are arranged on the second sliding block 82, and the third connecting block 85 is used for connecting the second sliding block 82 and the lifting plate 44; the second limiting block 77 and the cover block 71 are clamped between the first clamping block 83 and the second clamping block 84, and the distance between the first clamping block 83 and the second clamping block 84 is related to the length of the third elastic member 79; when the lifting plate 44 moves upwards, namely the mold splitting stage, the top block 76 is limited by the fixing structure 9 and cannot move, the second sliding block 82 moves upwards along with the lifting plate 44, the second clamping block 84 arranged on the second sliding block drives the cover plate to move upwards so as to extrude the third elastic piece 79, so that the top block 76 stores power, when the fixing structure 9 is released from fixing the top block 76, the top block 76 is ejected outwards so as to realize mold release, when the upper mold base 13 and the lower mold base 1 are closed again after the mold release is completed, the lifting plate 44 moves downwards so as to drive the second sliding block 82 to move downwards, the first clamping block 83 pulls the top block 76 to reset, the cover plate contacts the extension pipe 72 to extrude the third elastic piece 79, so that the cover plate becomes the extension pipe 72 again, and the mutual switching between the functions of the top block 76 and the cover plate is realized through the arrangement of the structure, thereby improving the stability of the equipment and ensuring the production effect.

The fixing structure 9 comprises a third sliding block 91, an eighth cavity 92, a sheet body 93, a fourth elastic piece 94, a ninth cavity 95, a fourth sliding block 96, a clamping inclined opening 97, a third extrusion inclined surface 98, a fifth elastic piece 99 and an embedding opening 910; the third slider 91 can move back and forth in the seventh cavity 81, the eighth cavity 92 is arranged on the side wall of the seventh cavity 81, the sheet body 93 is arranged on the third slider 91, the fourth elastic member 94 is arranged in the eighth cavity 92 for resetting the sheet body 93, the ninth cavity 95 is arranged above the eighth cavity 92, the fourth slider 96 can move back and forth in the ninth cavity 95, the clamping inclined opening 97 is arranged on the fourth slider 96, the third extrusion inclined surface 98 is arranged on the third slider 91, the fifth elastic member 99 is arranged in the ninth cavity 95 for resetting the fourth slider 96, and the rabbet 910 is arranged on the top block 76; the fourth slider 96 is clamped in the embedding opening 910 of the top block 76 so as to limit the top block 76, at the moment, the third slider 91 is located at the lowest position in the movable range, the bottom of the third slider 91 is exposed outwards, when the lifting plate 44 is lifted to the limit position, namely, the end stage of mold splitting is completed, at the moment, the side mold plate 24 is separated from the product, at the moment, the third slider 91 moves upwards under the pushing of the lifting plate 44, through the matching between the third extrusion inclined surface 98 and the clamping inclined opening 97, the fourth slider 96 is pushed to retract into the ninth cavity 95, so that the fixing of the top block 76 is released, at the moment, the top block 76 is pushed outwards, namely, the unlocking of the top block 76 is placed after the side mold plate 24 is subjected to mold splitting through the arrangement of the structure, so that the mold splitting effect and the operation smoothness of the device are effectively guaranteed, and the quality and efficiency of mold splitting are effectively guaranteed.

The specific operation flow is as follows:

the upper die holder 13 and the lower die holder 1 are spliced with each other, in the splicing process, the second block 47 is extruded, so that the lifting plate 44 is lowered, the third block 48 is driven to move downwards and move out of the clamping port 49, when the third block 48 moves downwards, the second rack 63 moves downwards, the first rack 62 is driven to move reversely through the first gear 64, the fourth block 61 is lifted, the first block 41 is pushed to move outwards, the side die plate 24 is reset and attached to the inner wall of the die core 11 to form a complete die core 11, the fourth block 61 continues to move upwards and then is clamped between the first block 41 and the side wall of the fifth cavity 42, so that the first block 41 is supported, the second block 82 moves downwards, at the moment, the first clamping block 83 pulls the top block 76 to reset, the cover plate contacts with the extension pipe 72 to extrude the third elastic member 79, so that the cover plate is sealed with the extension pipe 72 again, the top block 76 is limited by the fourth slide block 96 again to enter the injection molding process, after the injection molding is completed, air in the cooling cavity 36 is firstly pumped out through the air pump 314, so that the inside forms a negative pressure condition, liquid is more easily changed into a gas state under the negative pressure condition, the liquid in the cooling cavity 36 is pumped into the second cavity 34 through the water pump 39 and is diffused into the plurality of second pipelines from the second cavity 34 and then enters the first cooling runner 31, as the second cooling runner 32 is communicated with the first cooling runner 31 through the second hose 35, the liquid flows through the second cooling runner 32 to cool the upper surface of the mold core 11 and enters the material gathering groove 310 to be accumulated, and enters the third cavity 311 along the first channel 312, and finally enters the cooling chamber 36 through the second communicating pipe 313, in the process, when the liquid enters the first cooling flow passage 31 and the second cooling flow passage 32, the side die plate 24 is cooled, at the moment, the liquid in the first cooling flow passage 31 and the second cooling flow passage 32 gradually changes from a complete liquid state into a gas-liquid mixed state or even a gaseous state due to the absorption of heat in the first cooling flow passage 31, a large amount of heat is absorbed in the liquid-gas mixed state in the transition process from the liquid state to the gaseous state, the gas-liquid mixed state finally enters the cooling chamber 36 through the second communicating pipe 313, the gaseous state is changed back to the liquid state again through the condensing pipe 37, the circulation is carried out again through the water pump 39, the rapid cooling is carried out, after the cooling is finished, the die opening step is carried out, the upper die base 13 is separated from the lower die base 1, the lifting plate 44 is lifted upwards, so that the cover block 71 is lifted, and the ejection, in the process, the side die plate 24 retracts inwards to form a primary demoulding, when the lifting block is lifted to the limit position, namely the end stage of mould separation, the side die plate 24 is separated from a product at the moment, the third sliding block 91 moves upwards under the pushing of the lifting plate 44 at the moment, the fourth sliding block 96 is pushed to retract into the ninth cavity 95 through the matching between the third extrusion inclined plane 98 and the clamping inclined port 97, the fixing of the top block 76 is released, the top block 76 is ejected outwards at the moment, the complete demoulding is realized, and the steps are repeated.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An anti-deformation cooling mechanism of a large turnover box mold comprises a lower mold base (1), a mold core (11) arranged on the lower mold base (1), a guide post (12) arranged on the lower mold base (1), an upper mold base (13) corresponding to the lower mold base (1), a filling port (14) arranged on the upper mold base (13), and an anti-deformation cooling structure (2) arranged in the lower mold base (1); the method is characterized in that: the anti-deformation cooling structure (2) comprises a first cavity (21) arranged in the mold core (11), a through groove (22) arranged on the side wall of the first cavity (21), a first limiting block (23) arranged in the first cavity (21), a side mold plate (24) capable of moving back and forth in the first cavity (21), a convex block (25) arranged on the side mold plate (24) and corresponding to the through groove (22), an evaporative cooling structure (3) arranged in the side mold plate (24) and the mold core (11), and a demolding structure (4) used for driving the side mold plate (24).

2. The anti-deformation cooling mechanism for the large-scale turnover box mold according to claim 1, characterized in that: the evaporative cooling structure (3) comprises a first cooling flow channel (31) arranged in the side template (24), a second cooling flow channel (32) arranged in the mold core (11), a first hose (33) used for connecting the first cooling flow channel (31) and the second cooling flow channel (32), a second cavity (34) arranged in the lower mold base (1), a second hose (35) used for communicating the second cavity (34) with the first cooling flow channel (31), a cooling cavity (36) arranged above the second cavity (34), a condensation pipe (37) arranged in the cooling cavity (36), a first communicating pipeline (38) with two ends respectively communicated with the second cavity (34) and the cooling cavity (36), a water pump (39) arranged in the middle section of the communicating pipeline, a material gathering groove (310) arranged in the mold core (11), The mold comprises a third cavity (311) arranged in the mold core (11), a first channel (312) used for communicating the material gathering groove (310) with the third cavity (311), a second communicating pipeline (313) used for communicating the third cavity (311) with the cooling cavity (36), an air suction pump (314) arranged on the side wall of the cooling cavity (36), and a first supporting structure (5) used for supporting the first hose (33) and the second hose (35).

3. The anti-deformation cooling mechanism for the large-scale turnover box mold according to claim 2, characterized in that: the first supporting structure (5) comprises a fourth cavity (51) arranged on the side wall of the first cavity (21), a first sliding block (52) capable of moving back and forth in the fourth cavity (51), a first elastic piece (53) arranged in the fourth cavity (51) and used for resetting the first sliding block (52), and a lifting rod (54) arranged on the first sliding block (52).

4. The anti-deformation cooling mechanism for the large-scale turnover box mold according to claim 1, characterized in that: demoulding structure (4) is including locating first block (41) on side form board (24), offer in fifth cavity (42) on first cavity (21) lateral wall, locate sixth cavity (43) of fifth cavity (42) below, lifter plate (44) that can round trip movement in sixth cavity (43), locate be used for in sixth cavity (43) reseing second elastic component (45) of lifter plate (44), offer in through-hole (46) on the base, locate second block (47) at lifter plate (44) both ends, locate third block (48) on lifter plate (44), offer joint mouth (49) in the first block (41) of telling, locate first extrusion inclined plane (410) on joint mouth (49), locate second extrusion inclined plane (411) on third block (48), be used for supporting second bearing structure (6) of first block (41), And the ejection structure (7) is used for ejecting the product.

5. The anti-deformation cooling mechanism for the large-scale turnover box mold according to claim 4, characterized in that: the second supporting structure (6) comprises a fourth block body (61) capable of moving back and forth in a fifth cavity (42), a first rack (62) arranged on the fourth block body (61), a second rack (63) arranged on the third block body (48), and a first gear (64) used for linking the first rack (62) and the second rack (63).

6. The anti-deformation cooling mechanism for the large-scale turnover box mold according to claim 4, characterized in that: the ejection structure (7) comprises a cover block (71) capable of moving back and forth in the third cavity (311), an extension pipe (72) arranged in the third cavity (311), a first groove (73) arranged below the cover block (71) and corresponding to the extension pipe (72), a communication groove (74) used for communicating two adjacent third cavities (311), a first connecting block (75) arranged in the communication groove (74) and used for connecting two adjacent cover blocks (71), an ejector block (76) capable of moving back and forth in the third cavity (311), a second limiting block (77) arranged in the radial direction of the ejector block (76), a second connecting block (78) arranged in the communication groove (74) and used for connecting two adjacent ejector blocks (76), a third elastic piece (79) arranged between the ejector block (76) and the cover block (71), a reset structure (8) used for resetting the ejector block (76), and a reset structure (8) arranged on the ejector block (76), -a fixing structure (9) for fixing said top block (76).

7. The anti-deformation cooling mechanism for the large-scale turnover box mold according to claim 6, characterized in that: the resetting structure (8) comprises a seventh cavity (81) arranged on the side wall of the third cavity (311), a second sliding block (82) capable of moving back and forth in the seventh cavity (81), a first clamping block (83) and a second clamping block (84) arranged on the second sliding block (82), and a third connecting block (85) for connecting the second sliding block (82) and the lifting plate (44); the second limiting block (77) and the cover block (71) are clamped between the first clamping block (83) and the second clamping block (84); the distance between the first clamping block (83) and the second clamping block (84) is related to the length of the third elastic member (79).

8. The anti-deformation cooling mechanism for the large-scale turnover box mold according to claim 6, characterized in that: the fixed structure (9) comprises a third sliding block (91) which can move back and forth in the seventh cavity (81), an eighth cavity (92) which is arranged on the side wall of the seventh cavity (81), a sheet body (93) which is arranged on the third sliding block (91), a fourth elastic piece (94) which is arranged in the eighth cavity (92) and used for resetting the sheet body (93), and a ninth cavity (95) which is arranged above the eighth cavity (92), the fourth sliding block (96) capable of moving back and forth in the ninth cavity (95), the clamping inclined port (97) formed in the fourth sliding block (96), the third extrusion inclined surface (98) formed in the third sliding block (91), the fifth elastic piece (99) arranged in the ninth cavity (95) and used for resetting the fourth sliding block (96), and the embedded port (910) formed in the top block (76) can be arranged.