CN213972337U

CN213972337U - Integrative ejecting injection mold of drawing of patterns of convex hollow injection molding

Info

Publication number: CN213972337U
Application number: CN202023040323.3U
Authority: CN
Inventors: 颜金淼; 颜美月; 郭泽源
Original assignee: Shenzhen Jinzheng Plastic Industry Co ltd
Current assignee: Shenzhen Jinzheng Plastic Industry Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-08-17
Anticipated expiration: 2030-12-17

Abstract

The utility model belongs to the technical field of injection molds, and discloses an integral demolding and ejecting injection mold for arc-shaped hollow injection molding parts, which comprises a bottom plate, wherein a lower mold seat is arranged at the top of the bottom plate, supporting blocks are fixed at the bottom of the bottom plate, an upper mold seat is arranged at the top end of the lower mold seat, an injection mold cavity is arranged in the middle of the top of the lower mold seat, an injection port is arranged at the top end of the upper mold seat, the inner bottom end of the injection mold cavity is connected with an annular top plate, and cylinders are arranged at both ends of the bottom plate and between the two supporting blocks, the utility model can limit the upper mold seat on the lower mold seat through the matching of structures such as clamping plates, fixing knobs, elastic blocks, rubber pads and the like, and can tightly attach the upper mold seat and the lower mold seat together, thereby improving the stability between the upper mold seat and the lower mold seat, and avoiding the gap between the upper mold seat and the lower mold seat from being enlarged, the quality of the finished piece is ensured, and the using effect is better.

Description

Integrative ejecting injection mold of drawing of patterns of convex hollow injection molding

Technical Field

The utility model belongs to the technical field of injection mold, concretely relates to protruding hollow injection molding integrative drawing of patterns ejecting injection mold of piece.

Background

The injection molding method has the advantages of high production speed, high efficiency, automation operation, various colors, shapes from simple to complex, sizes from large to small, precise product size, easy product replacement, capability of forming products with complex shapes, and suitability for the molding processing fields of mass production, products with complex shapes and the like.

In chinese patent with patent number CN201921855228.3, an integrative drawing of patterns ejection injection mold of circular arc hollow injection molding is disclosed, the device is through setting up annular roof in the injection mold intracavity, thereby be convenient for ejecting circular arc hollow injection molding, and it is ejecting convenient, excellent in use effect, but the device still has more defect when in actual use, for example, stability when upper die base and die holder are connected is relatively poor, thereby lead to the clearance between upper die base and the die holder grow, cause the infiltration of molten material, finally influence the finished piece quality, in addition, annular roof receives the high temperature effect for a long time and easily takes place the deformation damage, and annular roof is inconvenient to be changed, thereby influence the normal use of device easily.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an ejecting injection mold of integrative drawing of patterns of convex hollow injection molding to the stability when the last mould that proposes among the above-mentioned background art is connected with the lower mould is relatively poor, and the inconvenient problem of changing of annular roof.

In order to achieve the above object, the utility model provides a following technical scheme: an integral demolding and ejecting injection mold for circular arc-shaped hollow injection molding parts comprises a bottom plate, wherein a lower die holder is installed at the top of the bottom plate, supporting blocks are fixed at the bottom of the bottom plate, an upper die holder is installed at the top end of the lower die holder, an injection molding die cavity is formed in the middle of the top of the lower die holder, an injection molding port is formed in the top end of the upper die holder, an annular top plate is connected to the bottom end inside the injection molding die cavity, air cylinders are installed at two ends of the bottom plate and between the two supporting blocks, piston rods are fixed at the top ends of the air cylinders, one ends of the piston rods extending into the injection molding die cavity are connected with the annular top plate, a channel is formed in the connecting positions of the piston rods and the lower die holder, clamping plates are hinged to two ends of the top of the bottom plate, close to one side of the lower die holder, fixing knobs are connected with fixing knobs through threads in a screwing mode, and elastic blocks are fixed at the bottom ends of the fixing knobs, the top both ends of upper die base all seted up with bullet piece assorted locating hole, and install the rubber pad between upper die base and the die holder.

Preferably, the two ends of the bottom of the annular top plate, which are close to the channel, are provided with fixing columns, the bottom ends of the fixing columns are provided with dovetail grooves, and the top end of the piston rod is fixed with a clamping block matched with the dovetail grooves.

Preferably, the bottom of the supporting block is provided with a backing plate, and the bottom of the backing plate is provided with a bulge.

Preferably, the outer wall of the cylinder is provided with a protective cover, and the side wall of the protective cover is provided with heat dissipation holes.

Preferably, handles are mounted at two ends of the top of the upper die base and located on one side of the injection molding opening.

Preferably, the cardboard is the L type, the fixture block is trapezoidal.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a cardboard, fixed knob, bullet piece and rubber pad isotructure's cooperation can make the close laminating of upper die base and die holder be in the same place on the die holder with the upper die base restriction simultaneously, and then has improved the stability between upper die base and the die holder, has avoided the clearance grow between upper die base and the die holder, has guaranteed the finished piece quality, and the result of use is better.

(2) The utility model discloses a cooperation of fixture block, dovetail and fixed column can be fixed the annular roof on the piston rod, and the annular roof is difficult to not hard up in the injection mold intracavity, and firm in connection is reliable, simultaneously with the ejecting injection mold chamber back of annular roof, transversely promote the annular roof and can take off it to be convenient for change the annular roof, easy operation is convenient, has improved the practicality of device greatly.

Drawings

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

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of portion B of FIG. 1;

in the figure: 1. an injection molding port; 2. clamping a plate; 3. a rubber pad; 4. a base plate; 5. a piston rod; 6. a cylinder; 7. a channel; 8. a support block; 9. an annular top plate; 10. an injection molding die cavity; 11. a lower die holder; 12. an upper die holder; 13. positioning holes; 14. fixing the knob; 15. a spring block; 16. fixing a column; 17. a clamping block; 18. a dovetail groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides the following technical solutions: an integral demolding and ejecting injection mold for circular arc-shaped hollow injection molding parts comprises a bottom plate 4, a lower die holder 11 is installed at the top of the bottom plate 4, supporting blocks 8 are fixed at the bottom of the bottom plate 4, an upper die holder 12 is installed at the top end of the lower die holder 11, an injection mold cavity 10 is formed in the middle of the top of the lower die holder 11, an injection port 1 is formed in the top end of the upper die holder 12, an annular top plate 9 is connected to the bottom end of the interior of the injection mold cavity 10, air cylinders 6 are installed at two ends of the bottom plate 4 and located between the two supporting blocks 8, piston rods 5 are fixed at the top ends of the air cylinders 6, one ends of the piston rods 5 extending into the interior of the injection mold cavity 10 are connected with the annular top plate 9, a channel 7 is formed in the connection positions of the piston rods 5 and the lower die holder 11, clamping plates 2 are hinged to one sides of two ends of the top of the bottom plate 4, close to the lower die holder 11, and fixing knobs 14 are screwed to the top ends of the two clamping plates 2 through threads, the bottom mounting of fixed knob 14 has bullet piece 15, the top both ends of upper die base 12 all seted up with bullet piece 15 assorted locating hole 13, and install rubber pad 3 between upper die base 12 and the die holder 11, when upper die base 12 and die holder 11 compound die, move it to the top of upper die base 12 through rotating cardboard 2, and back rotation fixed knob 14 makes bullet piece 15 get into in the locating hole 13, thereby can restrict upper die base 12 on die holder 11, simultaneously under the elastic action of bullet piece 15 and rubber pad 3, can be in the same place upper die base 12 and the close laminating of die holder 11, and then improved the stability between upper die base 12 and the die holder 11, the clearance grow between upper die base 12 and the die holder 11 has been avoided, the finished piece quality has been guaranteed, excellent in use effect.

Further, fixed column 16 has all been installed near the top of passageway 7 at the bottom both ends of annular roof 9, dovetail 18 has been seted up to fixed column 16's bottom, the top of piston rod 5 is fixed with the fixture block 17 with dovetail 18 assorted, through inserting fixture block 17 in dovetail 18, can connect fixed column 16 on piston rod 5, thereby fix annular roof 9 on piston rod 5, and annular roof 9 is difficult to become flexible in injection mold cavity 10, firm in connection is reliable, when needs are dismantled, through the ejecting injection mold cavity 10 of annular roof 9 of piston rod 5, then transversely promote annular roof 9 and can take it off, thereby be convenient for change annular roof 9, and the operation is simple and convenient, and the practicality of the device is greatly improved.

Further, a backing plate is installed at the bottom of the supporting block 8, the backing plate has an anti-skid function, and a protrusion is arranged at the bottom of the backing plate.

Specifically, the outer wall of the cylinder 6 is provided with a protective cover, the protective cover has a protective effect, and the side wall of the protective cover is provided with heat dissipation holes.

Specifically, handles are mounted at two ends of the top of the upper die base 12, the upper die base 12 can be conveniently lifted by the handles, and the handles are located on one side of the injection port 1.

Specifically, cardboard 2 is the L type, and fixture block 17 is trapezoidal.

The utility model discloses a theory of operation and use flow: when the utility model is used, the fixture block 17 is inserted into the dovetail groove 18, the fixing column 16 can be connected on the piston rod 5, so that the annular top plate 9 is fixed on the piston rod 5, the annular top plate 9 is difficult to loosen in the injection mold cavity 10, the connection is firm and reliable, when the upper mold base 12 and the lower mold base 11 are assembled, the clamping plate 2 is rotated to move the annular top plate above the upper mold base 12, and the fixing knob 14 is rotated to enable the elastic block 15 to enter the positioning hole 13, so that the upper mold base 12 can be limited on the lower mold base 11, simultaneously, under the elastic action of the elastic block 15 and the rubber pad 3, the upper mold base 12 and the lower mold base 11 can be tightly attached together, thereby improving the stability between the upper mold base 12 and the lower mold base 11, avoiding the gap between the upper mold base 12 and the lower mold base 11 from being enlarged, ensuring the quality of a finished piece, the using effect is good, when the annular top plate 9 needs to be disassembled, the annular top plate 9 is ejected out of the injection molding die cavity 10 through the piston rod 5, and then the annular top plate 9 is transversely pushed to be taken down, so that the annular top plate 9 is convenient to replace, the operation is simple and convenient, and the practicability of the device is greatly improved.

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

1. The utility model provides an ejecting injection mold of integrative drawing of patterns of convex hollow injection molding which characterized in that: the injection molding die comprises a bottom plate (4), a lower die holder (11) is installed at the top of the bottom plate (4), supporting blocks (8) are fixed at the bottom of the bottom plate (4), an upper die holder (12) is installed at the top end of the lower die holder (11), an injection molding die cavity (10) is formed in the middle of the top of the lower die holder (11), an injection molding port (1) is formed in the top end of the upper die holder (12), an annular top plate (9) is connected to the bottom end of the interior of the injection molding die cavity (10), air cylinders (6) are installed at two ends of the bottom plate (4) and located between the two supporting blocks (8), piston rods (5) are fixed at the top ends of the air cylinders (6), one ends of the piston rods (5) extending into the interior of the injection molding die cavity (10) are connected with the annular top plate (9), a channel (7) is formed at the joint of the piston rods (5) and the lower die holder (11), clamping plates (2) are hinged to one sides of two ends of the top of the bottom plate (4) close to the lower die holder (11), the top of two cardboard (2) all is connected with fixed knob (14) through the screw thread closure soon, the bottom mounting of fixed knob (14) has bullet piece (15), locating hole (13) with bullet piece (15) assorted are all seted up at the top both ends of upper die base (12), and install rubber pad (3) between upper die base (12) and lower die holder (11).

2. The integrated demolding and ejection injection mold for the circular arc-shaped hollow injection molded part according to claim 1, characterized in that: fixed columns (16) are mounted at two ends of the bottom of the annular top plate (9) and above the channel (7), dovetail grooves (18) are formed in the bottom ends of the fixed columns (16), and clamping blocks (17) matched with the dovetail grooves (18) are fixed at the top end of the piston rod (5).

3. The integrated demolding and ejection injection mold for the circular arc-shaped hollow injection molded part according to claim 1, characterized in that: the bottom of supporting shoe (8) is installed the backing plate, and the bottom of backing plate is provided with the arch.

4. The integrated demolding and ejection injection mold for the circular arc-shaped hollow injection molded part according to claim 1, characterized in that: the outer wall of the air cylinder (6) is provided with a protective cover, and the side wall of the protective cover is provided with heat dissipation holes.

5. The integrated demolding and ejection injection mold for the circular arc-shaped hollow injection molded part according to claim 1, characterized in that: handles are arranged at two ends of the top of the upper die base (12), and are positioned on one side of the injection molding port (1).

6. The integrated demolding and ejection injection mold for the circular arc-shaped hollow injection molded part according to claim 2, characterized in that: the clamping plate (2) is L-shaped, and the clamping blocks (17) are trapezoidal.