CN212528525U - High-temperature-resistant high-rigidity PCT material injection mold with built-in demolding structure - Google Patents

Abstract

The utility model provides a high temperature resistant high rigidity PCT material injection mold with built-in demoulding structure belongs to the mould and makes technical field. It has solved the easy problem of gluing partially of current injection mold. The high-temperature-resistant high-rigidity PCT material injection mold with the built-in demolding structure comprises a movable mold and a fixed mold matched with the movable mold, wherein the fixed mold is provided with a mold core penetrating into the movable mold and a demolding assembly arranged on the outer surface of the mold core and capable of reciprocating along the length direction of the mold core, a molding cavity for molding a long cylindrical product is formed among the demolding assembly, the mold core and the movable mold, and the upper end of the movable mold is provided with an injection molding assembly communicated with the inside of the molding cavity. The utility model discloses a built-in drawing of patterns subassembly solves the problem of coming unstuck.

Description

High-temperature-resistant high-rigidity PCT material injection mold with built-in demolding structure

Technical Field

The utility model belongs to the technical field of the mould is made, a high temperature resistant high rigidity PCT material injection mold with built-in demoulding structure is related to.

Background

The injection mould is a tool for producing plastic products, and is also a tool for endowing the plastic products with complete structures and accurate sizes, the injection moulding is a processing method used when producing some parts with complex shapes in batches, and specifically, the injection mould is used for injecting heated and melted plastics into a mould cavity by an injection moulding machine at high pressure, and obtaining a formed product after cooling and solidification.

The processing method of staving is fairly simple, nevertheless because the holistic length of staving is longer, after accomplishing injection moulding, hardly demolds, and the mould that has been used for processing the staving is demoulded mostly through the outer push pedal, because the area of outer push pedal is great, can lead to preceding back mould fixed not good, and the outer push pedal is whole heavier, leads to the phenomenon of gluing partially to appear in the product easily, causes the fashioned inhomogeneous of staving.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, provide a high temperature resistant high rigidity PCT material injection mold with built-in demoulding structure.

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

the high-temperature-resistant high-rigidity PCT material injection mold comprises a movable mold and a fixed mold matched with the movable mold, wherein the fixed mold is provided with a mold core penetrating into the movable mold and a mold stripping assembly arranged on the outer surface of the mold core and capable of reciprocating along the length direction of the mold core, a molding cavity for molding a long cylindrical product is formed among the mold stripping assembly, the mold core and the movable mold, and the upper end of the movable mold is provided with an injection molding assembly communicated with the inside of the molding cavity.

In the high-temperature-resistant high-rigidity PCT material injection mold with the built-in demolding structure, the fixed mold comprises a lower mold plate and a lower molding block connected to the upper end face of the lower mold plate, an accommodating cavity is formed between the lower molding block and the lower mold plate, the lower end of the mold core is arranged in the accommodating box, a first fixing piece is connected between the mold core and the lower molding block, and the upper part of the lower molding block is provided with a parting surface formed by downward depression.

In the injection mold for the high-temperature-resistant high-rigidity PCT material with the built-in demolding structure, the demolding assembly comprises an inner pushing plate arranged on the parting surface and a plurality of push rods connected to the inner pushing plate and used for pushing the inner pushing plate to move, a through hole for the mold core to pass through is formed in the center of the inner pushing plate, a molding groove for molding the edge of the product is formed in the inner pushing plate, and the molding groove is circumferentially distributed along the outer surface of the mold core.

In the high-temperature-resistant high-rigidity PCT material injection mold with the built-in demolding structure, the push rods are all arranged on the end face of one side, facing the lower template, of the inner push plate, and the push rods are provided with first connecting ends used for being connected with the inner push plate and second connecting ends capable of sliding in the fixed mold and used for being connected with an external driver.

In the high-temperature-resistant high-rigidity PCT material injection mold with the built-in demolding structure, the first connecting end abuts against the lower end of the inner pushing plate, and the inner pushing plate is provided with a second fixing piece which penetrates through the inner pushing plate from top to bottom and is fixed on the first connecting end in an extending mode.

In the injection mold for the high-temperature-resistant high-rigidity PCT material with the built-in demolding structure, the positions, corresponding to the push rods, of the mold core are provided with the sliding grooves for the push rods to slide up and down, and the positions, corresponding to the push rods, of the lower template are provided with the sliding ways for the push rods to slide up and down.

In the injection mold for high-temperature-resistant and high-rigidity PCT material with a built-in demolding structure, the diameter of the second connecting end is larger than that of the push rod, and a side surface of the second connecting end is in contact with the slide way.

In the injection mold for the high-temperature-resistant and high-rigidity PCT material with the built-in demolding structure, the movable mold comprises an upper mold plate for arranging the injection molding assembly and an upper molding block connected to the bottom of the upper mold plate, and the lower end of the upper molding block is provided with a parting block which penetrates into the lower molding block and is matched with the parting surface.

In the high-temperature-resistant high-rigidity PCT material injection mold with the built-in demolding structure, the fixed mold is internally provided with a plurality of guide pieces which play a role in guiding the sliding of the inner push plate, the guide pieces are distributed along the edge of the inner push plate, and each guide piece is arranged along the length direction of the mold core.

In the injection mold for the high-temperature-resistant and high-rigidity PCT material with the built-in demolding structure, the fixed mold is provided with the cooling assembly for cooling the product, and the cooling ends of the cooling assembly are arranged in the mold core and are uniformly distributed along the vertical direction of the mold core.

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

1. the utility model discloses a drawing of patterns subassembly sets up on the cover half and is located the core surface, adopts the less built-in formula drawing of patterns subassembly of volume, can improve the interlock nature of cover half and movable mould, and the product is difficult to appear the inclined to one side glue when the shaping, can avoid drawing of patterns subassembly overweight and lead to the condition that iron fillings dropped the product simultaneously through this drawing of patterns subassembly.

2. The utility model discloses a be equipped with the second mounting in the interior push pedal, interior push pedal links firmly with first link mutually through the second mounting, has the characteristics of convenient dismantlement, the later maintenance of being convenient for.

3. The utility model discloses the diameter of well second link is greater than the diameter of push rod, and the side surface of second link contacts with the slide, appears rocking when preventing that the push rod from reciprocating, and the diameter of second link is greater than the friction when the diameter of push rod is used for reducing the push rod motion.

4. The utility model discloses be provided with a plurality of guide in the well cover half, the guide slides for interior push pedal and plays the guide effect, improves the smoothness nature and the stability that interior push pedal reciprocated.

Additional advantages, objects, and features of the invention 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 invention.

Drawings

Fig. 1 is a cross-sectional view of the overall structure of the present invention.

Fig. 2 is a schematic connection diagram of the middle mold release assembly of the present invention.

Fig. 3 is a schematic view of the connection structure of the middle core of the present invention.

In the figure, 1, a moving die; 2. fixing a mold; 3. a core; 4. a demolding component; 5. a molding cavity; 6. an injection molding assembly; 7. a lower template; 8. a lower forming block; 9. an accommodating chamber; 10. a first fixing member; 11. parting surfaces; 12. an inner push plate; 13. a push rod; 14. a through hole; 15. forming a groove; 16. a first connection end; 17. a second connection end; 18. a second fixing member; 19. a chute; 20. a slideway; 21. mounting a template; 22. an upper forming block; 23. a parting block; 24. a guide member; 25. and cooling the assembly.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, the high temperature resistant and high rigidity PCT material injection mold with the built-in demolding structure comprises a movable mold 1 and a fixed mold 2 matched with the movable mold 1, wherein a core 3 penetrating into the movable mold 1 and a demolding assembly 4 arranged on the outer surface of the core 3 and capable of reciprocating along the length direction of the core 3 are arranged on the fixed mold 2, a molding cavity 5 for molding a long cylindrical product is formed between the demolding assembly 4, the core 3 and the movable mold 1, and an injection molding assembly 6 communicated with the inside of the molding cavity 5 is arranged at the upper end of the movable mold 1.

In this embodiment, be formed with between drawing of patterns subassembly 4 and core 3 and the movable mould 1 and be used for the fashioned shaping chamber 5 of long tube-shape product, drawing of patterns subassembly 4 sets up on cover half 2 and is located core 3 surface, pour into the PCT material in the die cavity through subassembly 6 of moulding plastics, the product cools off the design, then utilize drawing of patterns subassembly 4 motion to make the product break away from core 3, adopt the less built-in formula drawing of patterns subassembly 4 of volume, can improve the interlock nature of cover half 2 and movable mould 1, the product is difficult to appear gluing partially when the shaping, can avoid drawing of patterns subassembly 4 overweight and lead to iron fillings to drop in the product through this drawing of patterns subassembly 4 simultaneously.

The PCT material is a high-temperature resistant semi-crystalline thermoplastic plastic, and a product formed by thermoplastic molding and cooling the PCT material through a mold has the characteristics of high temperature resistance and high rigidity.

It will be appreciated by those skilled in the art that the injection assembly 6 is conventional, and in the field of molds, the injection assembly 6 may be an injection sprue or an injection sprue with multiple injection heads attached thereto, and the injection assembly 6 is primarily used to connect an external injection molding machine to the molding cavity 5.

The fixed die 2 comprises a lower template 7 and a lower forming block 8 connected to the upper end surface of the lower template 7, a containing cavity 9 is formed between the lower forming block 8 and the lower template 7, the lower end of the core 3 is arranged in the containing box, a first fixing part 10 is connected between the lower forming block 8 and the core, the upper part of the lower forming block 8 is provided with a parting surface 11 formed by downward depression, in the embodiment, the first fixing part 10 is a fixing bolt, the core 3 is detachably connected to the lower forming block 8 through the fixing bolt,

demoulding component 4 is used for promoting push plate 12 push rod 13 of motion in push plate 12 including setting up interior push plate 12 on die joint 11 and connecting a plurality of on interior push plate 12, as preferred, the quantity of push rod 13 is two, the center along interior push plate 12 piles up the distribution, can guarantee the homogeneity of application of force, the through-hole 14 that supplies core 3 to pass is seted up to the center department of interior push plate 12, be provided with on the interior push plate 12 and be used for the fashioned shaping groove 15 of product border department, shaping groove 15 encircles the distribution along the surface circumference of core 3, interior push plate 12 supports when leaning on die joint 11, shaping groove 15 cooperatees with core 3 and is used for the shaping of product, after the product shaping is accomplished, interior push plate 12 rebound promotes the product, make the product break away from in the core 3.

In this embodiment, each push rod 13 is disposed on an end surface of the inner push plate 12 facing one side of the lower die plate 7, the push rod 13 has a first connection end 16 for connecting the push rod with the inner push plate 12 and a second connection end 17 capable of sliding in the fixed die 2 and for connecting an external driver, the external driver may be an air cylinder or a motor, the first connection end 16 abuts against a lower end of the inner push plate 12, and the inner push plate 12 has a second fixing member 18 extending from top to bottom through the inner push plate 12 and fixed to the first connection end 16. The second fixing part 18 can be a fixing bolt, a detachable connection mode is realized between the inner push plate 12 and the first connection end 16 through the fixing bolt, the inner push plate 12 is conveniently disassembled, assembled and maintained, a sliding groove 19 for the push rod 13 to slide up and down is formed in the position, corresponding to the push rod 13, of the mold core 3, the sliding groove 19 in the mold core 3 is formed when the push rod 13 slides up and down, the push rod 13 is arranged at the position closer to the through hole 14, the forming groove 15 at the periphery of the through hole is used for forming the edge of a product, the acting force of the push rod 13 is closer to the forming groove 15, the ejection motion is easier to perform, and preferably, in order to enable the push rod 13 to slide up and down more stably, a slide 20 for the push rod 13.

The diameter of second link 17 is greater than the diameter of push rod 13, and when the side surface of second link 17 contacted with slide 20, push rod 13 did not contact with slide 20 inner wall, and second link 17 through setting up great diameter can prevent that push rod 13 from appearing rocking when reciprocating, simultaneously. The diameter of the second connecting end 17 is larger than the diameter of the push rod 13 for reducing friction when the push rod 13 moves.

In the present embodiment, the movable mold 1 includes an upper mold plate 21 for arranging the injection assembly 6 and an upper mold block 22 attached to the bottom of the upper mold plate 21, and the lower end of the upper mold block 22 has a parting block 23 penetrating into the lower mold block 8 to be fitted to the parting surface 11. When the movable mould 1 is occluded with the fixed mould 2, the side part of the parting block 23 is attached to the measuring surface of the fixed mould 2, the lower part of the parting block 23 penetrates into the fixed mould 2 to be matched with the parting surface 11, the inner push plate 12 is located between the parting block 23 and the parting surface 11, the occlusion performance of the movable mould 1 and the fixed mould 2 can be further improved by the parting block 23, and the problem of adhesive deviation of a product is prevented.

The fixed die 2 is internally provided with a plurality of guide pieces 24 which play a role in guiding the sliding of the inner push plate 12, the plurality of guide pieces 24 are distributed along the edge of the inner push plate 12, and each guide piece 24 is arranged along the length direction of the core 3. The guide 24 can directly choose for use the stand pipe or adopt stand pipe and sliding sleeve matched with direction subassembly, and the stand pipe is fixed inside cover half 2, and interior push pedal 12 passes through the sliding sleeve cover to be established and slides on the stand pipe, because stand pipe, sliding sleeve are common accessories in the market, so do not describe its structure tiredly.

The fixed die 2 is provided with a cooling assembly 25 for cooling products, and the cooling ends of the cooling assembly 25 are arranged in the core 3 and are uniformly distributed along the vertical direction of the core 3. Let in the coolant liquid through cooling module 25, the coolant liquid can be water or other liquid that have cooling performance, and through cooling module 25's quick cooling, the structure is inseparabler after can making the material cooling, is difficult to produce the bubble to this stability that improves the product.

In the present embodiment, the cooling component 25 is a cooling pipe disposed in the mold, and since the provision of the cooling pipe is common knowledge in the art and the cooling component 25 is not a technical problem to be solved by the present technical solution, the detailed arrangement and structure of the cooling component 25 are not described in detail.

The utility model discloses a theory of operation does: when movable mould 1 and cover half 2 closed, the lateral part of parting block 23 and the laminating of the survey surface of cover half 2 mutually, the lower part of parting block 23 penetrates in cover half 2 and cooperatees with die joint 11, interior push pedal 12 is located between parting block 23 and die joint 11, be formed with between drawing of patterns subassembly 4 and core 3 and the movable mould 1 and be used for the fashioned shaping chamber 5 of long tube-shape product, then utilize the subassembly 6 of moulding plastics to introduce the liquid of moulding plastics to the shaping chamber 5, and cool off the product through cooling module 25, after the product injection moulding, interior push pedal 12 moves towards keeping away from cover half 2 one side under the effect of push rod 13, carry out the whole production process of drawing of patterns completion product through exerting effort in product border department.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms moving mold 1, stationary mold 2, core 3, demolding assembly 4, molding cavity 5, injection molding assembly 6, lower mold plate 7, lower molding block 8, receiving cavity 9, first fixing member 10, parting surface 11, inner pushing plate 12, pushing rod 13, through hole 14, molding groove 15, first connecting end 16, second connecting end 17, second fixing member 18, sliding groove 19, slideway 20, upper mold plate 21, upper molding block 22, parting block 23, guide 24, cooling assembly 25, etc., are used more 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 invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.

Claims (10)

1. The utility model provides a high temperature resistant high rigidity PCT material injection mold with built-in demoulding structure, includes movable mould (1) and cover half (2) with movable mould (1) matched with, its characterized in that, cover half (2) on be equipped with and penetrate core (3) that extend to inside movable mould (1) and set up and can follow core (3) length direction reciprocating motion's drawing of patterns subassembly (4) on core (3) surface, be formed with between drawing of patterns subassembly (4) and core (3) and movable mould (1) and be used for the fashioned shaping chamber (5) of long tube-shape product, the upper end of movable mould (1) is equipped with the subassembly (6) of moulding plastics that are linked together with shaping chamber (5) inside.

2. The high-temperature-resistant high-rigidity PCT material injection mold with the built-in demolding structure is characterized in that the fixed mold (2) comprises a lower mold plate (7) and a lower molding block (8) connected to the upper end face of the lower mold plate (7), a containing cavity (9) is formed between the lower molding block (8) and the lower mold plate (7), the lower end of the mold core (3) is arranged in the containing box, a first fixing piece (10) is connected between the mold core and the lower molding block (8), and a parting surface (11) formed by downward depression is arranged at the upper part of the lower molding block (8).

3. The high-temperature-resistant high-rigidity PCT material injection mold with the built-in demolding structure as claimed in claim 2, wherein the demolding assembly (4) comprises an inner pushing plate (12) arranged on the parting surface (11) and a plurality of push rods (13) connected to the inner pushing plate (12) and used for pushing the inner pushing plate (12) to move, a through hole (14) for the mold core (3) to pass through is formed in the center of the inner pushing plate (12), a forming groove (15) for forming the edge of the product is formed in the inner pushing plate (12), and the forming grooves (15) are circumferentially distributed along the outer surface of the mold core (3).

4. The high-temperature-resistant high-rigidity PCT material injection mold with the built-in demolding structure is characterized in that a plurality of push rods (13) are arranged on the end face of one side, facing the lower mold plate (7), of the inner push plate (12), and the push rods (13) are provided with first connecting ends (16) used for being connected with the inner push plate (12) and second connecting ends (17) capable of sliding in the fixed mold (2) and used for being connected with an external driver.

5. The high temperature and high rigidity PCT material injection mold with built-in mold release structure according to claim 4, wherein the first connecting end (16) abuts against the lower end of the inner pushing plate (12), and the inner pushing plate (12) has a second fixing member (18) extending from top to bottom through the inner pushing plate (12) and fixed to the first connecting end (16).

6. The high-temperature-resistant high-rigidity PCT material injection mold with the built-in demolding structure as claimed in claim 4, wherein the mold core (3) is provided with a chute (19) at a position corresponding to the push rod (13) for the push rod (13) to slide up and down, and the lower template (7) is provided with a slide way (20) at a position corresponding to the push rod (13) for the push rod (13) to slide up and down.

7. The high temperature-resistant high rigidity PCT material injection mold with built-in release structure as claimed in claim 6, wherein said second connecting end (17) has a diameter larger than that of the push rod (13), and a side surface of said second connecting end (17) is in contact with the slide (20).

8. The injection mold for high-temperature-resistant and high-rigidity PCT material with built-in release structure as claimed in claim 2, wherein said movable mold (1) comprises an upper mold plate (21) for placing the injection module (6) and an upper molding block (22) attached to the bottom of the upper mold plate (21), and the lower end of said upper molding block (22) is provided with a parting block (23) which penetrates into the lower molding block (8) and is engaged with the parting surface (11).

9. The high-temperature-resistant high-rigidity PCT material injection mold with the built-in demolding structure is characterized in that a plurality of guiding pieces (24) for guiding the sliding of the inner pushing plate (12) are arranged in the fixed mold (2), the plurality of guiding pieces (24) are distributed along the edge of the inner pushing plate (12), and each guiding piece (24) is arranged along the length direction of the mold core (3).

10. A high temperature resistant high rigidity PCT material injection mold with built-in demoulding structure according to claim 1, wherein the fixed mold (2) is provided with a cooling assembly (25) for cooling the product, and the cooling end of the cooling assembly (25) is arranged in the core (3) and is uniformly distributed along the vertical direction of the core (3).

Images