CN210759014U - Straight jacking device of injection mould base combined cavity - Google Patents

Abstract

The utility model provides a straight top mechanism of die carrier combination die cavity of moulding plastics belongs to the die carrier and makes technical field. The mold base solves the problem that the wall of the existing product mold base product is still difficult to eject. The direct ejection mechanism of the injection mold base combined cavity comprises a fixed mold component and a movable mold component, wherein the fixed mold component comprises an upper compound plate and a cavity block fixed on the upper compound plate, the movable mold component comprises a lower compound plate and a core block fixed on the lower compound plate, the core block and the cavity block are matched and matched relatively to form a product cavity, a cavity elastic plate matched with the core block to form a cavity elastic plate used for manufacturing the bottom barrel bottom of a product is arranged at the top of the cavity block, and an ejection mechanism capable of pre-ejecting the product in the cavity block through the cavity elastic plate when the cavity block and the core block are opened in a mold relatively is arranged between the cavity block and the cavity elastic plate. The utility model discloses simple structure, can pop out the product in advance, avoid the product to glue the wall, research and development cost and cost of production are lower.

Description

Straight jacking device of injection mould base combined cavity

Technical Field

The utility model belongs to the technical field of the die carrier is made, a mould plastics die carrier combination die cavity's straight top device is related to.

Background

The die set has the figure of the die set in industrial production, the die set greatly improves the production speed in large-batch production, the rapid development of modern industry is driven, the die set manufacturing industry occupies a special position in a product manufacturing system, and the development level of the die set manufacturing industry determines the overall level of the manufacturing industry.

The injection mould frame is a tool for producing plastic products; can mass-produce some plastic parts with complex shapes. The injection molding die set is generally composed of a movable die and a fixed die, during production, the die set is installed in an injection molding machine, heated and melted plastics are injected into a die cavity of the injection molding die set from high pressure by the injection molding machine, after cooling and solidification, the injection molding machine pulls the movable die and the fixed die to separate, and then an injection molding finished product is pushed out by an ejection mechanism, so that one-time injection molding is completed.

However, in the product mold frame widely used at present, most of the plastic which is heated into a molten state by an injection molding machine is directly injected into the mold frame, so that the molten plastic is directly molded, during manufacturing, the product needs to form a cavity of the product through a complex mold frame structure, injection molding is performed through the injection molding machine, and as the product is provided with a base, the product is easy to stick to the wall and is difficult to eject, a plurality of mechanisms are developed in the industry, but practice shows that the product is difficult to eject due to sticking to the wall, the mold frame design is complex, and the research and development cost and the production cost are high.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a simple structure, research and development cost and become that production cost is lower, avoid the product to glue the straight top device of the die carrier combination die cavity of moulding plastics of wall.

The purpose of the utility model can be realized by the following technical proposal: the direct ejection device of the combined cavity of the injection mold base comprises a fixed mold component and a movable mold component matched with the fixed mold component, wherein the fixed mold component comprises an upper compound plate and a cavity block fixed on the upper compound plate, the movable mold component comprises a lower compound plate and a core block fixed on the lower compound plate, the core block and the cavity block are matched with each other to form a product cavity in a matched mode, and the direct ejection device is characterized in that a cavity elastic plate matched with the core block to form a cavity elastic plate for manufacturing a bottom barrel bottom of a product is arranged at the top of the cavity block, and an ejection mechanism capable of pre-ejecting the product in the cavity block through the cavity elastic plate is arranged between the cavity block and the cavity elastic plate when the cavity block and the core block are opened in opposite directions.

This straight top device of injection mold frame combination die cavity mainly sets up the die cavity bullet board in the top position of die cavity piece, and this die cavity bullet board directly forms the product die cavity of product bottom with the cooperation of die core piece, and this die cavity bullet board is great with the barrel head direct contact and the area of contact of fashioned product, sets up ejection mechanism and this ejection mechanism and pass through the die cavity bullet board with the product ejecting in advance in the die cavity piece, ejecting stable in structure avoids the product to glue the wall, convenient to use.

In the direct ejecting device for the combined cavity of the injection mold base, the ejecting mechanism comprises a plurality of compression springs, a plurality of spring grooves are vertically and evenly distributed on a cavity block between an upper compound plate and a cavity elastic plate, the compression springs are correspondingly positioned in the spring grooves, one ends of the compression springs are elastically abutted against the upper compound plate, the other ends of the compression springs are elastically abutted against the cavity elastic plate, and a limiting structure for guiding and ejecting the cavity elastic plate on the cavity block is arranged between the cavity elastic plate and the upper compound plate. The purpose of setting like this is that the process atress that makes the die cavity springboard pop out in the direction is even, with whole ejecting of product, avoids partial adhesion of product to draw the wound.

In foretell straight top device of die carrier combination die cavity of moulding plastics, limit structure include a plurality of spacing bolts that have the column head, the lower surface of the die cavity diving board relative with spring groove axial is provided with the guide way, the tank bottom of guide way is provided with the guiding hole with spring groove axial intercommunication, set up the bolt hole on the upper replica relative with spring groove axial, spacing bolt pass through the guiding hole and should wear to locate in the compression spring who sets up the inner spring groove and the column head of this spacing bolt is in the guide way and with guide way direction sliding fit, spacing bolt wear to establish the end and can dismantle and link firmly in the bolt hole. The purpose of setting up like this can effectively inject the die cavity diving board to guide the bullet interval in advance of popping out, convenient to use.

In the straight top device of the injection mould base combined cavity, the inner diameter of the guide hole is smaller than that of the guide groove.

In the direct-ejecting device for the combined cavity of the injection mold base, the outer wall of the penetrating end of the limiting bolt is provided with an external thread, the inner wall of the bolt hole is provided with an internal thread, and the penetrating end of the limiting bolt is spirally connected to the internal thread of the bolt hole through the external thread.

In the direct ejecting device of the injection mold base combined cavity, the top position of the cavity block is provided with more than one pouring cylinder with a pouring hole inside, the cavity elastic plate is provided with more than one guiding round hole, the pouring cylinders and the guiding round holes are distributed in a one-to-one correspondence manner, and the pouring cylinders are correspondingly positioned in the guiding round holes and are in axial sliding fit with the guiding round holes. The purpose that sets up like this is that the cooperation of pouring cylinder and direction round hole plays the effect of direction, causes the whole displacement of die cavity diving board, and it is even to play the atress in advance.

Compared with the prior art, the straight ejection device of the injection mould base combined cavity has the advantages that: structural design is reasonable, simple, sets up ejection mechanism and can pop out the product in advance through ejection mechanism, avoids the product to glue the wall, makes this product die sinking simple structure, can not cause the strain to the product, and the product percent of pass is higher, the utility model discloses simple structure, research and development cost and cost of production are lower.

Drawings

Fig. 1 is a schematic sectional structure view of the straight ejection device of the injection mold frame combined cavity.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

In the figure, 1, an upper compound plate; 2. a cavity block; 3. a lower compound plate; 4. a core block; 5. a cavity spring plate; 6. a compression spring; 7. a columnar head; 8. a limit bolt; 9. and (5) casting the cylinder.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the direct-ejecting device of the combined cavity of the injection mold base mainly comprises a fixed mold component and a movable mold component matched with the fixed mold component, the fixed mold component mainly comprises an upper compound plate 1 and a cavity block 2 fixed on the upper compound plate 1, the movable mold component mainly comprises a lower compound plate 3 and a core block 4 fixed on the lower compound plate 3, the core block 4 and the cavity block 2 are matched with each other relatively to form a product cavity, a cavity elastic plate 5 matched with the core block 4 to form a bottom barrel bottom of a product is arranged at the top of the cavity block 2, and an ejection mechanism capable of pre-ejecting the product in the cavity block 2 through the cavity elastic plate 5 is arranged between the cavity block 2 and the cavity elastic plate 5 when the cavity block 2 and the core block 4 are opposite to each other.

In actual manufacturing, the specific implementation mode of the ejection mechanism is as follows: mainly constitute by a plurality of compression spring 6, be in on the die cavity piece 2 between compound board 1 and die cavity springboard 5 vertical equipartition have a plurality of spring groove, compression spring 6 corresponds to be in the spring inslot, compression spring 6's one end elasticity support by last compound board 1 on, compression spring 6's the other end elasticity support by die cavity springboard 5 on, be provided with between die cavity springboard 5 and the last compound board 1 and make die cavity springboard 5 direction pop out limit structure on die cavity piece 2.

During actual manufacturing, the specific implementation mode of the limiting structure is as follows: the limiting bolt mainly comprises a plurality of limiting bolts 8 with columnar heads 7, a guide groove is formed in the lower surface of a cavity elastic plate 5 axially opposite to a spring groove, a guide hole axially communicated with the spring groove is formed in the bottom of the guide groove, bolt holes are formed in an upper compound plate 1 axially opposite to the spring groove, the limiting bolts 8 correspondingly penetrate through compression springs 6 of the inner spring groove through the guide holes, the columnar heads 7 of the limiting bolts 8 are located in the guide groove and are in guide sliding fit with the guide groove, and penetrating ends of the limiting bolts 8 are detachably and fixedly connected in the bolt holes; the inner diameter of the guide hole is smaller than the inner diameter of the guide groove.

In practical application, the specific connection structure of the limit bolt 8 is as follows: the outer wall of the penetrating end of the limiting bolt 8 is provided with an external thread, the inner wall of the bolt hole is provided with an internal thread, and the penetrating end of the limiting bolt 8 is connected to the internal thread of the bolt hole through the external thread in a threaded mode.

During actual manufacturing, the top position of the cavity block 2 is provided with two casting cylinders 9 with pouring holes inside, the cavity spring plate 5 is provided with two guiding round holes, the casting cylinders 9 and the guiding round holes are distributed in a one-to-one correspondence mode, and the casting cylinders 9 are correspondingly located in the guiding round holes and are in axial sliding fit with the guiding round holes.

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 upper doubler 1 is used more herein; a cavity block 2; a lower clad plate 3; a core block 4; a cavity spring plate 5; a compression spring 6; a columnar head portion 7; a limit bolt 8; casting cylinder 9, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (6)

1. The direct ejection device of the injection mould base combined cavity comprises a fixed mould component and a movable mould component matched with the fixed mould component, the fixed die assembly comprises an upper compound plate (1) and a cavity block (2) fixed on the upper compound plate (1), the movable die component comprises a lower compound plate (3) and a core block (4) fixed on the lower compound plate (3), the core block (4) and the cavity block (2) are matched with each other in a matched mode to form a product cavity, characterized in that the top position of the cavity block (2) is provided with a cavity spring plate (5) which is matched with the cavity block (4) to form the bottom barrel bottom for manufacturing products, when the cavity block (2) and the core block (4) are oppositely opened and the mold cavity is opened, the elastic plate (5) of the cavity block (2), the ejection mechanism can pre-eject a product in the cavity block (2) through the cavity elastic plate (5).

2. The straight ejection device of the injection mold base combined cavity according to claim 1, wherein the ejection mechanism comprises a plurality of compression springs (6), a plurality of spring grooves are vertically and evenly distributed on a cavity block (2) between an upper compound plate (1) and a cavity elastic plate (5), the compression springs (6) are correspondingly positioned in the spring grooves, one end of each compression spring (6) is elastically abutted against the upper compound plate (1), the other end of each compression spring (6) is elastically abutted against the cavity elastic plate (5), and a limiting structure for guiding and ejecting the cavity elastic plate (5) on the cavity block (2) is arranged between the cavity elastic plate (5) and the upper compound plate (1).

3. The direct ejecting device of the combined cavity of the injection mold base according to claim 2, wherein the limiting structure comprises a plurality of limiting bolts (8) with columnar heads (7), a guide groove is formed in the lower surface of the cavity spring plate (5) axially opposite to the spring groove, a guide hole axially communicated with the spring groove is formed in the groove bottom of the guide groove, a bolt hole is formed in the upper replica (1) axially opposite to the spring groove, the limiting bolts (8) correspondingly penetrate through the compression spring (6) provided with the inner spring groove through the guide hole, the columnar heads (7) of the limiting bolts (8) are located in the guide groove and are in guiding sliding fit with the guide groove, and penetrating ends of the limiting bolts (8) are detachably and fixedly connected in the bolt holes.

4. The direct ejecting apparatus of a combined cavity of an injection mold frame as claimed in claim 3, wherein the inner diameter of the guide hole is smaller than the inner diameter of the guide groove.

5. The direct ejecting device of the combined cavity of the injection mold frame as claimed in claim 4, wherein the outer wall of the penetrating end of the limiting bolt (8) is provided with an external thread, the inner wall of the bolt hole is provided with an internal thread, and the penetrating end of the limiting bolt (8) is screwed on the internal thread of the bolt hole through the external thread.

6. The straight ejection device of the injection mold base combined cavity according to claim 5, wherein the top position of the cavity block (2) is further provided with more than one casting cylinder (9) with a casting hole inside, the cavity spring plate (5) is further provided with more than one guiding round hole, the casting cylinders (9) and the guiding round holes are distributed in a one-to-one correspondence manner, and the casting cylinders (9) are correspondingly positioned in the guiding round holes and are in axial sliding fit with the guiding round holes.

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