CN218462863U - Ejection structure of injection mold - Google Patents

Abstract

The utility model discloses an injection mold's liftout structure, the on-line screen storage device comprises a base, the both sides difference fixedly connected with spacing sleeve pipe of base, spacing sheathed tube inside fixedly connected with auxiliary spring, auxiliary spring's top fixedly connected with and spacing sleeve pipe sliding connection's branch, fixedly connected with upper die base between the branch, the bottom of upper die base is provided with the mould, the mouth of moulding plastics that passes the mould is seted up to the inside of upper die base, the upper surface of base is provided with the die holder, the bottom fixedly connected with of die holder sets up the hydraulic lifting rod at the base lower surface, the top of die holder is provided with the bed die. This injection mold's liftout structure can realize ejecting of injection molding after the end of moulding plastics, has saved the loaded down with trivial details manual operation step that needs when ejecting the injection molding, when improving the ejecting efficiency of injection molding, has still alleviateed staff's work burden.

Description

Ejection structure of injection mold

Technical Field

The utility model relates to an injection mold technical field specifically is an injection mold's liftout structure.

Background

The injection mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and accurate sizes, and after injection molding is finished, an injection molding part needs to be taken out of a mold cavity by using a material ejecting structure.

Chinese patent CN 213472078U discloses an automobile is liftout mechanism for injection mold, including the die holder, the lower mould is installed at the die holder top, just set up the first movable chamber of intercommunication between die holder and the lower mould, be provided with the die cavity in the lower mould, the die cavity bottom is provided with the mounting groove, just the mounting groove is connected with first movable chamber, install the roof in the mounting groove, roof bottom symmetry is provided with the slide bar, be provided with fixed cover between the slide bar, fixed cover bottom cover is equipped with the ejector pin, ejector pin bilateral symmetry is provided with the pull rod, movable sliding sleeve is installed on the pull rod top, just movable sliding sleeve suit is in the slide bar outside, be provided with the second movable chamber in the die holder, second movable chamber right side is provided with the through-hole, install the action bars in the through-hole, simple structure, reasonable in design can conveniently ejecting the injection molding, can play fine cushioning effect simultaneously, avoids causing the damage to the injection molding. However, the ejection mechanism cannot realize automatic ejection of the injection molding part, when the ejection mechanism is used, the injection molding part can be ejected out by the top plate only by means of manually rotating the operating rod, the top plate needs to be reset after the injection molding part is ejected out, the manual operation steps are complex, the ejection efficiency of the injection molding part is reduced, and the labor burden of workers is increased.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides an injection mold's liftout structure, this injection mold's liftout structure can realize ejecting of injection molding after the end of moulding plastics, has saved the loaded down with trivial details manual operation step that needs when ejecting injection molding, when improving the ejecting efficiency of injection molding, has still alleviateed staff's work burden.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an injection mold's liftout structure, includes the base, the both sides difference fixedly connected with limit sleeve of base, limit sleeve's inside fixedly connected with auxiliary spring, auxiliary spring's top fixedly connected with and limit sleeve sliding connection's branch, fixedly connected with upper die base between the branch, the bottom of upper die base is provided with the mould, the mouth of moulding plastics that passes the mould is seted up to the inside of upper die base, the upper surface of base is provided with the die holder, the bottom fixedly connected with of die holder sets up the hydraulic lifting rod at the base lower surface, the top of die holder is provided with the bed die, the die cavity has been seted up to the upper surface of bed die, the recess has been seted up respectively to the bottom inner wall of die cavity, the inside of die cavity is provided with liftout mechanism, fixedly connected with rack plate respectively is distinguished to the both sides of die holder, the mutually the side of the back of the body of rack plate meshes respectively has the gear.

Preferably, the lower surface of the base is provided with universal wheels.

Preferably, the opposite sides of the supporting rod are respectively provided with teeth matched with the gears.

Preferably, the liftout mechanism is including extending to the inside and fixed connection's of die cavity ejector pin on the base upper surface respectively, the dashpot has been seted up to the upper surface of ejector pin, the inside fixedly connected with buffer spring of dashpot, buffer spring's top fixedly connected with and dashpot sliding connection's buffer beam, the top fixedly connected with of buffer beam and the roof of recess size adaptation.

Preferably, the back sides of the gears are rotatably connected with supporting frames fixedly connected to the upper surface of the base.

The utility model has the advantages that:

1. when the injection molding machine is used, the lower die base and the lower die are driven to move upwards by the hydraulic lifting rod, the top plate moves towards the direction of the groove and finally retracts into the groove, the rack plates on the two sides can be driven to move upwards when the lower die base moves upwards, the rack plates on the two sides are meshed with the gears on the two sides and drive the gears to rotate when the gears on the two sides rotate, the upper die base is driven to move downwards, the upper die base and the lower die base move towards each other and are attached, then plastic in a molten state is injected into the inside of the cavity through the injection molding port, an injection molding part is formed under the cooperation of the upper die and the lower die, the lower die base and the lower die are driven to move downwards by the hydraulic lifting rod after injection molding, the upper die base is driven to move upwards by the cooperation of the rack plates, the gears and the support rods, the separation of the upper die base and the lower die base is completed, when the lower die base drives the lower die to move downwards, the injection molding part inside the cavity is automatically ejected by the top plate under the cooperation of the ejector rod, the buffer effect of the buffer spring, the labor damage to the ejection work in the ejection work is avoided, the injection molding operation required by the injection molding machine is saved, and the complicated operation steps are reduced, and the labor burden of ejection workers during the injection molding operation.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

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

FIG. 2 is a schematic view of the structural assembly of the lower mold of the present invention;

fig. 3 is an enlarged schematic view of the structure a in fig. 2 according to the present invention.

Reference numbers in the figures: 1. a base; 2. a universal wheel; 3. a limiting sleeve; 4. an auxiliary spring; 5. a strut; 6. an upper die holder; 7. an upper die; 8. injection molding a port; 9. a lower die holder; 10. a hydraulic lifting rod; 11. a lower die; 12. a cavity; 13. a groove; 14. a top rod; 15. a buffer tank; 16. a buffer spring; 17. a buffer rod; 18. a top plate; 19. a rack plate; 20. a gear.

Detailed Description

The technical solution of the present invention will be clearly and completely described with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance.

Example one

As shown in fig. 1-3, an ejection structure of an injection mold comprises a base 1, two sides of the base 1 are respectively and fixedly connected with a limiting sleeve 3, an auxiliary spring 4 is fixedly connected inside the limiting sleeve 3, the top of the auxiliary spring 4 is fixedly connected with a supporting rod 5 slidably connected with the limiting sleeve 3, an upper mold base 6 is fixedly connected between the supporting rods 5, the bottom of the upper mold base 6 is provided with an upper mold 7, the inside of the upper mold base 6 is provided with an injection port 8 penetrating through the upper mold 7, the upper surface of the base 1 is provided with a lower mold base 9, the bottom of the lower mold base 9 is fixedly connected with a hydraulic lifting rod 10 arranged on the lower surface of the base 1, the top of the lower mold base 9 is provided with a lower mold 11, the upper surface of the lower mold 11 is provided with a cavity 12, the inner wall of the bottom of the cavity 12 is respectively provided with a groove 13, and the inside of the cavity 12 is provided with an ejection mechanism, liftout mechanism is including extending to the inside ejector pin 14 of die cavity 12 and fixed connection at the 1 upper surface of base respectively, buffer slot 15 has been seted up to ejector pin 14's upper surface, the inside fixedly connected with buffer spring 16 of buffer slot 15, buffer spring 16's top fixedly connected with and buffer slot 15 sliding connection's buffer beam 17, buffer beam 17's top fixedly connected with and the roof 18 of recess 13 size adaptation, fixedly connected with rack plate 19 is distinguished to the both sides of die holder 9, rack plate 19's the opposite side of the back of the body meshing respectively has gear 20, the opposite side of branch 5 is provided with the tooth with gear 20 adaptation respectively, with this drive branch 5 and reciprocate, gear 20's dorsal part all rotates and is connected with the support frame of fixed connection at the 1 upper surface of base, support gear 20 through the support frame.

When in use, the hydraulic lifting rod 10 can drive the lower die holder 9 and the lower die 11 to move upwards, so that the top plate 18 moves towards the direction of the groove 13 and finally retracts into the groove 13, the lower die holder 9 can also drive the rack plates 19 at two sides to move upwards when moving upwards, the rack plates 19 at two sides are meshed with the gears 20 at two sides when moving upwards and drive the gears 20 to rotate, the gears 20 at two sides are meshed with the teeth arranged at the opposite sides of the supporting rods 5 at two sides when rotating, so as to drive the upper die holder 6 to move downwards, so that the upper die holder 6 and the lower die holder 9 move towards each other and are jointed, then plastic in a molten state is injected into the cavity 12 through the injection port 8, and an injection molding piece is formed under the matching action of the upper die 7 and the lower die 11, after injection molding, the hydraulic lifting rod 10 can drive the lower die holder 9 and the lower die 11 to move downwards, the rack plate 19, the gear 20 and the support rod 5 are matched to drive the upper die holder 6 to move upwards, so that the upper die holder 6 and the lower die holder 9 are separated, and when the lower die holder 9 drives the lower die 11 to move downwards, injection moldings in the cavity 12 can be automatically ejected out through the top plate 18 under the matching action of the ejector rod 14, and the buffer action of the buffer spring 16 is realized, so that the injection moldings are prevented from being damaged in the ejection process, the complex manual operation steps required when the injection moldings are ejected are omitted, the ejection efficiency of the injection moldings is improved, and the labor burden of workers is also relieved.

Example two

Referring to fig. 1, as another preferred embodiment, the difference from the first embodiment is that a universal wheel 2 is provided on the lower surface of a base 1, and the effect of facilitating movement can be achieved by providing the universal wheel 2.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides an injection mold's liftout structure, includes base (1), its characterized in that: the utility model discloses a gear rack, including base (1), limiting sleeve (3), inside fixedly connected with auxiliary spring (4) of limiting sleeve (3), the top fixedly connected with of auxiliary spring (4) and limiting sleeve (3) sliding connection's branch (5), fixedly connected with upper die base (6) between branch (5), the bottom of upper die base (6) is provided with mould (7), injection molding mouth (8) of passing upper die (7) are seted up to the inside of upper die base (6), the upper surface of base (1) is provided with die holder (9), the bottom fixedly connected with of die holder (9) sets up hydraulic lifting rod (10) at base (1) lower surface, the top of die holder (9) is provided with bed die (11), die cavity (12) have been seted up to the upper surface of bed die (11), recess (13) have been seted up respectively to the bottom inner wall of die cavity (12), the inside of die cavity (12) is provided with liftout mechanism, the both sides difference fixedly connected with rack plate (19) of die holder (9), the side gear meshing back of the body (20) do not has mutually in the same place.

2. The ejection structure of an injection mold according to claim 1, characterized in that: the lower surface of the base (1) is provided with universal wheels (2).

3. The ejector structure of an injection mold according to claim 1, wherein: the opposite sides of the supporting rod (5) are respectively provided with teeth matched with the gears (20).

4. The ejector structure of an injection mold according to claim 1, wherein: liftout mechanism is including extending to ejector pin (14) of inside and fixed connection of die cavity (12) at base (1) upper surface respectively, dashpot (15) have been seted up to the upper surface of ejector pin (14), inside fixedly connected with buffer spring (16) of dashpot (15), the top fixedly connected with and dashpot (15) sliding connection's of buffer spring (16) buffer beam (17), the top fixedly connected with of buffer beam (17) and roof (18) of recess (13) size adaptation.

5. The ejector structure of an injection mold according to claim 1, wherein: the back sides of the gears (20) are rotatably connected with supporting frames fixedly connected to the upper surface of the base (1).

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