CN217293271U - Injection mold capable of automatically demolding concave parts of automobile - Google Patents

Abstract

The utility model relates to an injection mold capable of automatically demolding concave parts of an automobile, which comprises an upper mold base and a lower mold base, the bottom end of the lower die holder is fixedly connected with a base, a mold core is also fixedly connected on the lower die holder, a push rod penetrates through and is connected with the lower die base in a sliding way, the bottom end of the push rod is fixedly connected with a sliding plate, the upper die base is pressed on the lower die base, therefore, the push rod can push the sliding plate to slide downwards, the sliding plate compresses the spring, the rack drives the gear to rotate, and the gear can be limited by the matching of the ratchet wheel and the non-return pawl, thereby limiting and fixing the sliding plate, when the plastic part needs to be taken out, the rotating block is rotated to drive the winding disc to rotate, the pull rope drives the non-return pawl not to be clamped with the ratchet wheel, therefore, under the elastic force action of the spring, the sliding plate drives the push rod to slide upwards, and the injection molded plastic part can be pushed out through the push rod.

Description

Injection mold capable of automatically demolding concave parts of automobile

Technical Field

The utility model relates to an injection mold technical field specifically is an injection mold of concave type part of automatic drawing of patterns car.

Background

An injection mold is a tool for producing plastic products; and is also a tool for giving the plastic product complete structure and accurate dimension. Injection molding is a process used to mass produce parts of some complex shapes. Specifically, the plastic melted by heating is injected into a mold cavity from an injection molding machine at high pressure, and a formed product is obtained after cooling and solidification. At present, in vehicle automobile production, some concave class structural part are through moulding plastics manufacturing, and traditional injection mold does not have ejecting mechanism, and after adopting injection mold to mould plastics and produce and mould, the piece that moulds plastics after moulding plastics is comparatively inseparable with mould absorption, is difficult to take out, so injection mold uses comparatively inconveniently.

In summary, the present application provides an injection mold capable of automatically demolding concave parts of an automobile to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a but female type of part's of automatic demoulding car injection mold does not have ejecting mechanism in order to solve traditional injection mold, after adopting injection mold to carry out injection moulding production and mould a piece, mould after moulding plastics and mould absorbent comparatively inseparable, be difficult to take out, so injection mold uses comparatively inconvenient problem, the utility model discloses convenient to use, easy operation, systematic height, the practicality is strong.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a but injection mold of concave type part of automatic drawing of patterns car, includes upper die base and die holder, the bottom fixedly connected with base of die holder, go back the fixedly connected with core on the die holder, run through and sliding connection has the push rod on the die holder, the bottom fixedly connected with slide of push rod, fixedly connected with spring between slide and the base, two racks of bottom symmetry fixedly connected with of slide, be equipped with the notch in the base, the gear is installed to the notch internal rotation, wheel and rack toothing, be equipped with stop gear on the gear.

Preferably, stop gear is the ratchet with the coaxial fixed connection of gear, and still installs the non return pawl through the bull stick rotation in the mounting groove, non return pawl and ratchet meshing, still the cover is equipped with the torsional spring on the bull stick.

Preferably, the winding disc is installed in the base in a rotating mode, a pull rope is fixedly connected to one end of the non-return pawl, the other end of the pull rope is fixedly connected with the winding disc, a rotating block is installed at the outer end of the base in a rotating mode, and the rotating block is coaxially and fixedly connected with the winding disc.

Preferably, the springs are provided with a plurality of springs which are uniformly and fixedly connected between the sliding plate and the base.

Preferably, the bottom end of the upper die base is fixedly connected with a guide rod, and guide holes are formed in the positions, corresponding to the guide rods, of the lower die base.

Preferably, the bottom end of the base is fixedly connected with a supporting plate.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses during the use, hold the upper die base pressure on the lower die base, so the push rod can promote the slide and slide downwards, the slide compresses the spring, the rack drives gear revolve, and can carry on the gear spacing through the cooperation of ratchet and non return pawl, thereby carry out spacing fixed with carrying on of slide, when needing to take out and mould, it rotates to rotate the commentaries on classics piece and drive the winding dish, let the stay cord drive non return pawl not with the ratchet joint, so under the spring action of spring, the slide drives the push rod and slides upwards, through the push rod alright will mould plastics that good mould plastics release, so this equipment can mould plastics and accomplish the back moulding plastics through the push rod, convenient and fast, time saving and labor saving.

Drawings

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

fig. 2 is a schematic view of the front view cross-sectional structure of the present invention;

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

Reference numerals: 1. an upper die holder; 2. a guide bar; 3. a lower die holder; 4. a core; 5. a guide hole; 6. a push rod; 7. a slide plate; 8. a base; 9. a rack; 10. a spring; 11. a chute; 12. a gear; 13. a ratchet wheel; 14. a non-return pawl; 15. a rotating rod; 16. pulling a rope; 17. a winding disc; 18. and (6) turning the block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a but injection mold of concave type part of automatic drawing of patterns car, includes upper die base 1 and die holder 3, the bottom fixedly connected with base 8 of die holder 3, and still fixedly connected with core 4 is gone up to the die holder 3, runs through and sliding connection has push rod 6 on the die holder 3, and the bottom fixedly connected with slide 7 of push rod 6, upper die base 1 and die holder 3 are prior art, and push rod 6 is used for moulding a release.

Referring to fig. 2-3, wherein a plurality of springs 10 are fixedly connected between the sliding plate 7 and the base 8, the springs 10 are uniformly and fixedly connected between the sliding plate 7 and the base 8, the springs 10 push the sliding plate 7 upwards, two racks 9 are symmetrically and fixedly connected to the bottom end of the sliding plate 7, a notch is formed in the base 8, a gear 12 is rotatably mounted in the notch, the gear 12 is meshed with the racks 9, a limiting mechanism is arranged on the gear 12, the upper die holder 1 presses the push rod 6 to slide downwards, when the upper die holder 1 is completely attached to the lower die holder 3, the guide rod 2 is inserted into the guide hole 5, the upper surface of the push rod 6 is attached to the upper surface of the lower die holder 3, the shape of the plastic part is not affected, when the push rod 6 moves downwards, the push rod 6 pushes the sliding plate 7 to slide downwards, the sliding plate 7 compresses the springs 10, the sliding plate 7 drives the rack 9 to move downwards, and the rack 9 moves downwards to drive the gear 12 to rotate.

Referring to fig. 2-3, the sliding limiting mechanism is a ratchet 13 coaxially and fixedly connected with the gear 12, a non-return pawl 14 is rotatably mounted in the mounting groove through a rotating rod 15, the non-return pawl 14 is meshed with the ratchet 13, a torsion spring is further sleeved on the rotating rod 15, two ends of the torsion spring are respectively and fixedly connected with the inner wall of the base 8 and the non-return pawl 14, the non-return pawl 14 is tightly clamped with the ratchet 13 under the torsion action of the torsion spring, and the ratchet 13 and the gear 12 can only rotate in a single direction under the clamping of the non-return pawl 14 and the ratchet 13.

Referring to fig. 2-3, a winding disc 17 is rotatably mounted in a base 8, a pull rope 16 is fixedly connected to one end of a non-return pawl 14, the other end of the pull rope 16 is fixedly connected to the winding disc 17, a rotating block 18 is rotatably mounted at the outer end of the base 8, the rotating block 18 is coaxially and fixedly connected to the winding disc 17, after injection molding is completed, the upper die base 1 is taken out, and then the rotating block 18 is rotated clockwise, so that the rotating block 18 drives the winding disc 17 to rotate, the pull rope 16 is wound by the winding disc 17, the pull rope 16 drives the non-return pawl 14 not to be clamped with a ratchet 13, so that the ratchet 13 and a gear 12 lose the characteristic of unidirectional rotation, under the elastic force of a spring 10, a sliding plate 7 drives a push rod 6 to slide upwards, and an injection molded plastic piece can be pushed out through the push rod 6.

Referring to fig. 2-3, a guide rod 2 is fixedly connected to the bottom end of the upper die base 1, guide holes 5 are formed in positions of the guide rods 2 corresponding to the lower die base 3, the guide rods 2 guide the upper die base 1, and a support plate is fixedly connected to the bottom end of the base 8.

The working principle is as follows: the upper die holder 1 is pressed on the lower die holder 3, the upper die holder 1 presses the push rod 6 to slide downwards, when the upper die holder 1 is completely attached to the lower die holder 3, the guide rod 2 is inserted into the guide hole 5, meanwhile, the upper surface of the push rod 6 is attached to the upper surface of the lower die holder 3, the shape of a plastic part cannot be influenced, when the push rod 6 moves downwards, the push rod 6 pushes the sliding plate 7 to slide downwards, the sliding plate 7 compresses the spring 10, the sliding plate 7 drives the rack 9 to move downwards, and the downward movement of the rack 9 drives the gear 12 to rotate; referring to fig. 3, the rack 9 drives the gear 12 to rotate counterclockwise, the gear 12 drives the ratchet 13 to rotate counterclockwise, then under the torsion action of the torsion spring, the non-return pawl 14 is tightly clamped with the ratchet 13, under the clamping action of the non-return pawl 14, the ratchet 13 and the gear 12 can only rotate in one direction, under the elastic force action of the spring 10, the sliding plate 7 and the rack 9 have a tendency of sliding upwards, and through the clamping action of the rack 9 and the gear 12, the sliding plate 7 is limited, so that the sliding plate 7 cannot pop up upwards, then injection molding is performed through an injection molding port on the upper die holder 1, after the injection molding is completed, the upper die holder 1 is taken out, then the rotating block 18 is rotated clockwise, so the rotating block 18 drives the winding disc 17 to rotate, the pull rope 16 is wound by the winding disc 17, the pull rope 16 drives the non-return pawl 14 not to be clamped with the ratchet 13, so that the ratchet 13 and the gear 12 lose the characteristic of one-way rotation, under the action of the elastic force of the spring 10, the sliding plate 7 drives the push rod 6 to slide upwards, and the injection molded plastic part can be pushed out through the push rod 6.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. 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.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a but injection mold of concave type part of automatic drawing of patterns car, includes upper die base (1) and die holder (3), the bottom fixedly connected with base (8) of die holder (3), go back fixedly connected with core (4) on die holder (3), run through and sliding connection has push rod (6) on die holder (3), the bottom fixedly connected with slide (7) of push rod (6), its characterized in that: fixedly connected with spring (10) between slide (7) and base (8), two racks (9) of bottom symmetry fixedly connected with of slide (7), be equipped with the notch in base (8), gear (12) are installed to the notch internal rotation, gear (12) and rack (9) meshing, be equipped with stop gear on gear (12).

2. The injection mold capable of automatically demolding the concave part of the automobile as claimed in claim 1, wherein: stop gear is ratchet (13) with the coaxial fixed connection of gear (12), and still rotates through bull stick (15) in the mounting groove and installs non return pawl (14), non return pawl (14) and ratchet (13) meshing, it is equipped with the torsional spring still to overlap on bull stick (15).

3. The injection mold capable of automatically demolding the concave part of the automobile as claimed in claim 2, wherein: winding dish (17) is installed to base (8) internal rotation, the one end fixedly connected with stay cord (16) of non return pawl (14), the other end and the winding dish (17) fixed connection of stay cord (16), the outer end of base (8) is rotated and is installed commentaries on classics piece (18), commentaries on classics piece (18) and the coaxial fixed connection of winding dish (17).

4. The injection mold capable of automatically demolding the concave part of the automobile as claimed in claim 1, wherein: the spring (10) is provided with a plurality of springs, and the springs (10) are uniformly and fixedly connected between the sliding plate (7) and the base (8).

5. The injection mold capable of automatically demolding the concave part of the automobile as claimed in claim 1, wherein: the bottom end of the upper die base (1) is fixedly connected with a guide rod (2), and guide holes (5) are formed in the positions, corresponding to the lower die base (3), of the guide rods (2).

6. The injection mold capable of automatically demolding the concave part of the automobile as claimed in claim 1, wherein: the bottom end of the base (8) is fixedly connected with a supporting plate.

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