CN215396673U - Cold runner point gate advances face guard support injection mold who waters - Google Patents

Abstract

The utility model provides a cold runner point gate pouring mask support injection mold, and belongs to the technical field of molds. The core pulling device comprises an upper template and a lower template, wherein an upper insert and a lower insert are arranged on the upper template and the lower template respectively, a first forming surface is arranged at the bottom of the upper insert, a second forming surface and a third forming surface are arranged on the top and the side of the lower insert respectively, the second forming surface and the third forming surface are combined to form a forming cavity, and a core pulling assembly is arranged between the first forming surface and the second forming surface. A shaping chamber that shaping face, No. two shaping faces and No. three shaping faces combination formed can be used for injection moulding face guard support, and the subassembly of loosing core, No. two subassemblies of loosing core and No. three subassemblies of loosing core cooperation can be taken out the pellet that inserts to the shaping intracavity fast to can reduce the production cycle of product, improve production efficiency.

Description

Cold runner point gate advances face guard support injection mold who waters

Technical Field

The utility model belongs to the technical field of molds, and relates to a cold runner point gate pouring mask support injection mold.

Background

The mask support is generally formed by injection molding, but the mask support needs to be provided with a plurality of core pulling blocks due to complex structure and multiple back-off, but the core pulling mechanism in the prior art has complex structure and low core pulling efficiency, and can prolong the production period of products.

In order to overcome the defects of the prior art, people continuously explore and propose various solutions, for example, a core-pulling mechanism is disclosed in the chinese patent application No.: 201620245591.3], including the guide slide seat, the sliding block seat with sliding block, and the driving part, which is connected with the sliding block seat, drives the sliding block seat to slide in the guide slide seat, the clearance along the sliding direction of the sliding block seat is formed between the power output end of the driving part and the sliding block seat, the locking part is arranged between the sliding block seat and the guide slide seat, and the return part is arranged on the sliding block seat or the guide slide seat. According to the core-pulling mechanism, the locking part is arranged between the sliding block seat and the sliding guide part, so that the sliding block seat can be firmly locked after being inserted into a core in place; through the setting of returning the position portion, can order about the locking piece and break away from the card with the card of card portion, with the unblock of slider seat when making the mechanism loose core, this mechanism of loosing core can avoid when towards the type because of the reaction force that the inside injection specific pressure of die cavity was applyed, makes the mechanism of loosing core roll back, and the product surface defect that leads to the fact, can avoid current mechanism of loosing core not enough in the use, nevertheless also has above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provides a cold runner point gate pouring mask support injection mold.

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

the utility model provides a face guard support injection mold that cold runner spot gate advances to water, includes cope match-plate pattern and lower bolster, cope match-plate pattern and lower bolster on be equipped with respectively insert and insert down, last bottom of inserting be equipped with the profiled surface No. one, lower insert top and lateral part be equipped with profiled surface No. two and profiled surface No. three respectively, No. two profiled surfaces and No. three profiled surface combination form the die cavity, profiled surface and No. two profiled surfaces between be equipped with the subassembly of loosing core No. one, the cope match-plate pattern on still be equipped with the subassembly of loosing core No. two that links to each other with No. three profiled surfaces, the lower bolster on still be equipped with the subassembly of loosing core No. three that links to each other with No. three profiled surfaces.

In foretell cold runner point runner advances face guard support injection mold who waters, a subassembly of loosing core including setting up a plurality of pellet grooves in last inlay, a plurality of pellet grooves set up along a shaping face circumference, a pellet inslot be equipped with a pellet, a pellet inner insert to the shaping intracavity, a pellet inslot still be equipped with the elastic component that can drive a pellet to keeping away from shaping chamber direction motion, the cope match-plate pattern on still be equipped with pellet limit structure.

In the above mask support injection mold with cold runner sprue pouring, the core block limiting structure comprises a limiting block groove arranged in the upper template, a limiting block capable of lifting along the vertical direction is further arranged in the limiting block groove, a lifting driving assembly connected with the limiting block is further arranged on the upper template, an upper limiting step obliquely arranged is arranged at the bottom of the limiting block, and a lower limiting step matched with the upper limiting step is arranged on the core block.

In the above mask support injection mold with a cold runner and a sprue, the lifting drive assembly comprises a lifting driver, the lifting driver is provided with an output shaft capable of lifting along the vertical direction, and the end part of the output shaft of the lifting driver is fixedly connected with the limiting block.

In the cold runner spot gate pouring mask support injection mold, the elastic piece is a compression spring, the first core block is provided with a spring groove, the compression spring is arranged in the spring groove, and two ends of the compression spring are fixedly connected with the spring groove and the first core block groove respectively.

In the above-mentioned face guard support injection mold that cold runner spot gate advances to water, No. two loose core subassemblies including fixing the driver fixed plate on the cope match-plate pattern, the driver fixed plate on be equipped with linear drive assembly, linear drive assembly on even have along the incline direction run through the lower bolster and go up insert and with No. two core blocks that No. three profiled surfaces link to each other, No. two core blocks be cylindrical.

In the cold runner spot gate pouring mask support injection mold, the linear driving assembly comprises a linear driver fixed on a driver fixing plate, the linear driver is obliquely arranged and provided with an output shaft capable of reciprocating along a straight line, and the end part of the output shaft of the linear driver is fixedly connected with the second core block.

In the above-mentioned face guard support injection mold that cold runner spot gate advances to water, No. three loose core subassemblies including setting up No. three core blocks in the lower bolster both sides, No. three core block the inner insert to the shaping intracavity, the lower bolster on still be equipped with the structure of loosing core that can drive No. three core blocks to keep away from the motion of shaping chamber direction.

In the above-mentioned face guard support injection mold that cold runner spot gate advances to water, the structure of loosing core include the link block that links to each other with No. three core blocks, link block top be equipped with the drive spout that the slope set up, the cope match-plate pattern on still be equipped with the actuating lever that can insert to drive in the spout and the slope set up.

In the mask support injection mold with the cold runner sprue pouring, the lower template is further provided with a positioning plate, the top of the positioning plate is flush with the bottom of the third core block, and the outer end of the positioning plate is fixedly connected with a positioning baffle.

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

1. a shaping chamber that shaping face, No. two shaping faces and No. three shaping faces combination formed can be used for injection moulding face guard support, and the subassembly of loosing core, No. two subassemblies of loosing core and No. three subassemblies of loosing core cooperation can be taken out the pellet that inserts to the shaping intracavity fast to can reduce the production cycle of product, improve production efficiency.

2. A pellet inserts and forms the buckle to the shaping intracavity internal energy on the face guard support, and when moulding plastics, pellet limit structure can promote a pellet and insert to the shaping intracavity, and can prevent that the too big pellet that leads to when moulding plastics of chamber pressure in the shaping intracavity from moving back, and when carrying out the drawing of patterns, pellet limit structure breaks away from with a pellet, thereby the elastic component can drive pellet outwards movement completion and loose core and can make the product drawing of patterns.

3. The lifting driving assembly can drive the limiting block to lift along the vertical direction, the limiting block can drive the first core block to move towards the direction close to the forming cavity through the upper limiting step and the lower limiting step when moving downwards, and the limiting block can limit the first core block when injection molding.

4. The core-pulling structure can drive the third core block to move outwards when the upper die plate moves upwards so as to separate the third core block from the molding cavity, and the core-pulling structure can also limit the third core block when the injection molding is performed, so that the phenomenon that the third core block is withdrawn due to overlarge cavity pressure in the molding cavity is prevented.

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

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic structural view of the lower template;

fig. 4 is a schematic structural view of the upper plate.

In the figure: the core-pulling mechanism comprises an upper template 1, a lower template 2, an upper insert 3, a lower insert 4, a first molding surface 5, a second molding surface 6, a third molding surface 7, a molding cavity 8, a first core-pulling assembly 9, a second core-pulling assembly 10, a third core-pulling assembly 11, a first core block groove 12, a first core block 13, an elastic piece 14, a core block limiting structure 15, a limiting block groove 16, a limiting block 17, an upper limiting step 18, a lower limiting step 19, a lifting driver 20, a driver fixing plate 21, a second core block 22, a linear driver 23, a third core block 24, a core-pulling structure 25, a connecting slide block 26, a driving slide groove 27, a positioning plate 28, a positioning baffle 29 and a driving rod 30.

Detailed Description

As shown in fig. 1-4, a face guard support injection mold that cold runner spot gate advances to water, includes cope match-plate pattern 1 and lower bolster 2, cope match-plate pattern 1 and lower bolster 2 on be equipped with insert 3 and insert 4 down respectively, last insert 3 bottom be equipped with one number shaping surface 5, lower insert 4 top and lateral part be equipped with shaping surface 6 No. two and shaping surface 7 No. three respectively, shaping surface 6 No. two and shaping surface 7 combination form one-tenth die cavity 8, shaping surface 5 No. two be equipped with loose core subassembly 9 between shaping surface 6, cope match-plate pattern 1 on still be equipped with the No. two loose core subassemblies 10 that link to each other with shaping surface 7 No. three, lower bolster 2 on still be equipped with the No. three loose core subassembly 11 that links to each other with shaping surface 7 No. three.

Specifically speaking, a forming cavity 8 that forming surface 5, No. two forming surfaces 6 and No. three forming surfaces 7 make up and form can be used for injection moulding face guard support, and the cooperation of subassembly 9 of loosing core, No. two subassembly 10 and No. three subassembly 11 of loosing core can be taken out the pellet that inserts to the forming cavity fast to can reduce the production cycle of product, improve production efficiency.

Specifically, as shown in fig. 1, 2 and 4, the first core pulling assembly 9 includes a plurality of first core block grooves 12 disposed in the upper insert 3, the plurality of first core block grooves 12 are circumferentially disposed along the first molding surface 5, a first core block 13 is disposed in the first core block groove 12, the inner end of the first core block 13 is inserted into the molding cavity 8, an elastic member 14 capable of driving the first core block 13 to move in a direction away from the molding cavity 8 is further disposed in the first core block groove 12, and the upper mold plate 1 is further provided with a core block limiting structure 15. A pellet 13 inserts and forms the buckle to the shaping intracavity internal energy on the face guard support, and when moulding plastics, pellet limit structure 15 can promote a pellet and insert to the shaping intracavity, and can prevent that the too big pellet that leads to when moulding plastics of chamber pressure in the shaping intracavity from moving back, and when carrying out the drawing of patterns, pellet limit structure 15 breaks away from with a pellet, thereby the elastic component 14 can drive pellet outwards to move and accomplish and loose core and can make the product drawing of patterns.

Specifically, as shown in fig. 1, fig. 2 and fig. 4, the core block limiting structure 15 includes a limiting block groove 16 disposed in the upper die plate 1, a limiting block 17 capable of lifting along a vertical direction is further disposed in the limiting block groove 16, a lifting driving assembly connected to the limiting block 17 is further disposed on the upper die plate 1, an upper limiting step 18 disposed in an inclined manner is disposed at the bottom of the limiting block 17, and a lower limiting step 19 adapted to the upper limiting step 18 is disposed on the first core block 13. The lifting driving assembly can drive the limiting block 17 to lift along the vertical direction, the limiting block can drive the first core block to move towards the direction close to the forming cavity through the upper limiting step 18 and the lower limiting step 19 when moving downwards, and the limiting block can limit the first core block when injection molding.

Specifically, as shown in fig. 1, fig. 2 and fig. 4, the lifting driving assembly includes a lifting driver 20, the lifting driver 20 has an output shaft which can be lifted in a vertical direction, and an end of the output shaft of the lifting driver 20 is fixedly connected to the limit block 17. The lifting driver can drive the limiting block to lift in the vertical direction.

It will be appreciated by those skilled in the art that the lift drive may be a cylinder, linear motor, or the like.

Specifically, as shown in fig. 1, 2 and 4, the elastic member 14 is a compression spring, the first core block 13 is provided with a spring slot, the compression spring is disposed in the spring slot, and two ends of the compression spring are fixedly connected to the spring slot and the first core block slot 12, respectively. After the upper limiting step 18 on the limiting block is separated from the lower limiting step 19 on the first core block, the compression spring can push the first core block to move outwards so as to finish the core pulling.

Specifically, as shown in fig. 2, the second core pulling assembly 10 includes a driver fixing plate 21 fixed on the upper mold plate 1, a linear driving assembly is arranged on the driver fixing plate 21, a second core block 22 penetrating through the lower mold plate 2 and the upper insert 3 in an inclined direction and connected to the third molding surface 7 is connected to the linear driving assembly, and the second core block 22 is cylindrical. The linear driving assembly comprises a linear driver 23 fixed on the driver fixing plate 21, the linear driver 23 is obliquely arranged, the linear driver 23 is provided with an output shaft capable of reciprocating along a straight line, and the end part of the output shaft of the linear driver 23 is fixedly connected with the second core block 22. The linear driver 23 can drive the second core block 22 to do linear reciprocating motion, and the linear driver can drive the second core block to be inserted into the forming cavity or drive the second core block to be separated from the forming cavity to finish the core pulling.

It will be appreciated by those skilled in the art that the linear actuator may be a ram, cylinder, linear motor, or the like.

Specifically, as shown in fig. 3, the third core pulling assembly 11 includes third core blocks 24 disposed on two sides of the lower mold plate 2, inner ends of the third core blocks 24 are inserted into the molding cavity 8, and the lower mold plate 2 is further provided with a core pulling structure 25 capable of driving the third core blocks 24 to move in a direction away from the molding cavity 8. The core-pulling structure 25 can drive the third core block to move outwards when the upper die plate moves upwards so as to separate the third core block from the molding cavity, and the core-pulling structure can also limit the third core block during injection molding so as to prevent the third core block from moving back due to overlarge cavity pressure in the molding cavity.

Specifically, as shown in fig. 3, the core-pulling structure 25 includes a connecting slide block 26 connected to the core block No. three 24, a driving slide groove 27 is disposed at the top of the connecting slide block 26, and a driving rod 30 is disposed on the upper mold plate 1 and can be inserted into the driving slide groove 27. When the driving rod inserted into the driving sliding groove in an inclined mode moves vertically upwards, the connecting sliding block can be driven to move outwards along the horizontal direction, so that the third core block can be driven to move outwards to complete automatic core pulling, and when the core pulling device is used for injection molding, the driving rod is matched with the driving sliding groove to limit the third core block.

Preferably, as shown in fig. 1 and 3, the lower template 2 is further provided with a positioning plate 28, the top of the positioning plate 28 is flush with the bottom of the third core block 24, and the outer end of the positioning plate 28 is further fixedly connected with a positioning baffle 29. The third core block can slide to the positioning plate 28 by moving outwards, and the positioning baffle plate on the positioning plate can limit the third core block, so that the third core block can be prevented from being separated from the lower template.

The working principle of the utility model is as follows: the forming cavity 8 formed by combining the first forming surface 5, the second forming surface 6 and the third forming surface 7 can be used for injection molding of a mask support, and the core blocks inserted into the forming cavity can be quickly extracted by matching the first core-pulling assembly 9, the second core-pulling assembly 10 and the third core-pulling assembly 11, so that the production period of products can be shortened, and the production efficiency can be improved;

the first core block 13 is inserted into the molding cavity and can form a buckle on the mask support, when in injection molding, the core block limiting structure 15 can push the first core block to be inserted into the molding cavity and can prevent the first core block from retreating when in injection molding due to overlarge cavity pressure in the molding cavity, when in demolding, the core block limiting structure 15 is separated from the first core block, the elastic piece 14 can drive the first core block to move outwards to complete core pulling so as to enable a product to be demolded, the lifting driving assembly can drive the limiting block 17 to lift along the vertical direction, the downward movement of the limiting block can drive the first core block to move towards the direction close to the molding cavity through the upper limiting step 18 and the lower limiting step 19, when in injection molding, the limiting block can limit the first core block, the lifting driver can drive the limiting block to lift along the vertical direction, after the upper limiting step 18 on the limiting block is separated from the lower limiting step 19 on the first core block, the compression spring can push the first core block to move outwards so as to complete core pulling,

the linear driver 23 can drive the second core block 22 to do linear reciprocating motion, the linear driver can drive the second core block to be inserted into the forming cavity or drive the second core block to be separated from the forming cavity to finish core pulling, the core pulling structure 25 can drive the third core block to move outwards to separate the third core block from the forming cavity when the upper template moves upwards, when in injection molding, the core-pulling structure can also limit the third core block so as to prevent the third core block from retreating due to overlarge cavity pressure in the molding cavity, and the driving rod obliquely inserted into the driving chute can drive the connecting slide block to move horizontally outwards when moving vertically upwards so as to drive the third core block to move outwards to complete automatic core-pulling, when moulding plastics, the actuating lever cooperation drive spout can carry on spacingly to No. three pellet, and No. three pellet outwards moves can slide to locating plate 28 on, thereby the locating baffle on the locating plate can carry on spacingly to No. three pellet and can prevent that No. three pellet from breaking away from with the lower bolster.

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

Although the upper die plate 1, the lower die plate 2, the upper insert 3, the lower insert 4, the first molding surface 5, the second molding surface 6, the third molding surface 7, the molding cavity 8, the first core-pulling assembly 9, the second core-pulling assembly 10, the third core-pulling assembly 11, the first core-pulling groove 12, the first core block 13, the elastic member 14, the core-block limiting structure 15, the limiting block groove 16, the limiting block 17, the upper limiting step 18, the lower limiting step 19, the lifting driver 20, the driver fixing plate 21, the second core block 22, the linear driver 23, the third core block 24, the core-pulling structure 25, the connecting slide block 26, the driving slide groove 27, the positioning plate 28, the positioning baffle 29, the driving rod 30, etc., are used more frequently, these terms are used only for the convenience of describing and explaining the essence of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims (10)

1. A cold runner point gate pouring mask support injection mold comprises an upper template (1) and a lower template (2), it is characterized in that an upper insert (3) and a lower insert (4) are respectively arranged on the upper template (1) and the lower template (2), the bottom of the upper insert (3) is provided with a first molding surface (5), the top and the side of the lower insert (4) are respectively provided with a second molding surface (6) and a third molding surface (7), the second molding surface (6) and the third molding surface (7) are combined to form a molding cavity (8), a first core-pulling component (9) is arranged between the first forming surface (5) and the second forming surface (6), the upper template (1) is also provided with a second loose core component (10) connected with the third forming surface (7), and a third core-pulling assembly (11) connected with the third forming surface (7) is further arranged on the lower template (2).

2. The cold runner gate-gating mask support injection mold according to claim 1, wherein the first core-pulling assembly (9) comprises a plurality of first core block grooves (12) arranged in the upper insert (3), the plurality of first core block grooves (12) are circumferentially arranged along the first molding surface (5), a first core block (13) is arranged in the first core block groove (12), the inner end of the first core block (13) is inserted into the molding cavity (8), an elastic piece (14) capable of driving the first core block (13) to move in the direction away from the molding cavity (8) is further arranged in the first core block groove (12), and a core block limiting structure (15) is further arranged on the upper mold plate (1).

3. The cold runner gate sprue gate mask support injection mold according to claim 2, wherein the core block limiting structure (15) comprises a limiting block groove (16) arranged in the upper mold plate (1), a limiting block (17) capable of lifting in the vertical direction is further arranged in the limiting block groove (16), a lifting driving assembly connected with the limiting block (17) is further arranged on the upper mold plate (1), an upper limiting step (18) obliquely arranged is arranged at the bottom of the limiting block (17), and a lower limiting step (19) matched with the upper limiting step (18) is arranged on the first core block (13).

4. The cold runner sprues mask support injection mold according to claim 3, wherein the lifting drive assembly comprises a lifting driver (20), the lifting driver (20) has an output shaft which can be lifted and lowered in the vertical direction, and the end of the output shaft of the lifting driver (20) is fixedly connected with the limiting block (17).

5. The cold runner gate-in mask support injection mold according to claim 2, wherein the elastic member (14) is a compression spring, the first core block (13) is provided with a spring groove, the compression spring is arranged in the spring groove, and two ends of the compression spring are fixedly connected with the spring groove and the first core block groove (12) respectively.

6. The cold runner sprue gate face shield support injection mold according to claim 1, wherein the second core pulling assembly (10) comprises a driver fixing plate (21) fixed on the upper mold plate (1), a linear driving assembly is arranged on the driver fixing plate (21), a second core block (22) penetrating through the lower mold plate (2) and the upper insert (3) along an inclined direction and connected with the third molding surface (7) is connected to the linear driving assembly, and the second core block (22) is cylindrical.

7. The cold runner gate-in mask support injection mold according to claim 6, wherein the linear drive assembly comprises a linear driver (23) fixed on a driver fixing plate (21), the linear driver (23) is obliquely arranged, the linear driver (23) is provided with an output shaft capable of reciprocating along a straight line, and the end of the output shaft of the linear driver (23) is fixedly connected with the second core block (22).

8. The cold runner gate-gating mask support injection mold according to claim 7, wherein the third core-pulling assembly (11) comprises third core blocks (24) arranged on two sides of the lower mold plate (2), the inner ends of the third core blocks (24) are inserted into the molding cavity (8), and the lower mold plate (2) is further provided with a core-pulling structure (25) capable of driving the third core blocks (24) to move in the direction away from the molding cavity (8).

9. The cold runner gate-in mask support injection mold according to claim 8, wherein the core pulling structure (25) comprises a connecting slide block (26) connected with a core block (24) of the third type, a driving chute (27) arranged obliquely is arranged at the top of the connecting slide block (26), and a driving rod (30) which can be inserted into the driving chute (27) and is arranged obliquely is further arranged on the upper mold plate (1).

10. The cold runner gate-in mask support injection mold according to claim 9, wherein the lower mold plate (2) is further provided with a positioning plate (28), the top of the positioning plate (28) is flush with the bottom of the third core block (24), and the outer end of the positioning plate (28) is further fixedly connected with a positioning baffle (29).

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