CN217169591U

CN217169591U - Injection mold with ejection mechanism

Info

Publication number: CN217169591U
Application number: CN202123386434.4U
Authority: CN
Inventors: 李道庆
Original assignee: Foshan Lisheng Plastic Products Co ltd
Current assignee: Foshan Lisheng Plastic Products Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-08-12
Anticipated expiration: 2031-12-29

Abstract

The utility model belongs to the technical field of injection molds, in particular to an injection mold with an ejection mechanism, which comprises an upper mold, a lower mold, a hydraulic rod and a jacking assembly; a hydraulic rod is fixedly connected between the upper die and the lower die; the jacking assembly is arranged at the bottom of the lower die; the jacking assembly consists of a fitting block, a straight rod, a bottom plate and a spring; the fitting block is fixedly connected to the top end of the straight rod; through setting up the jacking subassembly, when last mould and bed die do not merge, the outstanding groove that agrees with of agreeing with of piece, recess and external intercommunication this moment, and after last mould and bed die merge, the recess intercommunication is at the activity inslot this moment, the upper end in activity groove is sealed by agreeing with the piece, the activity groove is in relative encapsulated situation, mould and bed die in the separation this moment, agree with the piece and go up the bullet under the drive of spring, it is ejecting with the injection molding on the bed die, the cooperation and the intake action of the air inlet duct of activity groove intercommunication, realize that quick messenger agrees with the piece and pop out, and then can be ejecting with the injection molding.

Description

Injection mold with ejection mechanism

Technical Field

The utility model belongs to the technical field of injection mold, specific injection mold with ejection mechanism that says so.

Background

Injection molds are commonly used in factories for processing plastic parts.

When the plastic piece is manufactured, the plastic pieces with different shapes can be produced only by adding molten plastic between the upper die and the lower die through the injection pipe and changing the shape of a gap between the upper die and the lower die;

in the prior art, after the injection mold is used, the plastic part is attached to the lower mold, so that the produced plastic part is difficult to take out, and the production efficiency of the plastic part is reduced; therefore, an injection mold having an ejection mechanism is proposed to address the above problems.

SUMMERY OF THE UTILITY MODEL

In order to make up the not enough of prior art, solve after injection mold uses, because the working of plastics can laminate on the bed die, the working of plastics that leads to producing are difficult to take out, and then reduce the production efficiency's of working of plastics problem, the injection mold who provides a have ejection mechanism.

The utility model provides a technical scheme that its technical problem adopted is: the utility model relates to an injection mold with an ejection mechanism, which comprises an upper mold, a lower mold, a hydraulic rod and a jacking assembly; a hydraulic rod is fixedly connected between the upper die and the lower die; the jacking assembly is arranged at the bottom of the lower die;

the jacking assembly consists of a fitting block, a straight rod, a bottom plate and a spring; the fitting block is fixedly connected to the top end of the straight rod; the bottom plate is fixedly connected to the bottom end of the straight rod; the spring is sleeved on the straight rod;

the bottom of the lower die is provided with a movable groove corresponding to the jacking assembly; one end of the spring is fixedly connected to the side wall of the movable groove, and the other end of the spring is fixedly connected to the bottom plate; the straight rod penetrates through the movable groove; a matching groove is formed in the top surface of the lower die corresponding to the movable groove and is communicated with the movable groove; the fitting block is fitted and connected in the fitting groove; after the injection molding of the upper mold and the lower mold is finished, the upper mold is separated from the lower mold, the conjunction block moves upwards under the elastic potential energy of the spring at the bottom, the injection molding piece at the top of the conjunction block is driven to be separated from the lower mold, and then the injection molding piece can be quickly taken.

Preferably, the bottom of the lower die is provided with an air inlet groove, and one end of the air inlet groove is communicated with the movable groove; when the upper die and the lower die are separated, air with certain pressure is fed into the air inlet groove, so that the pressure inside the movable groove is increased, and the conjunction block can be rapidly ejected under the synergistic action of the pressure.

Preferably, eight groups of jacking assemblies are arranged, and the eight groups of jacking assemblies are circumferentially and symmetrically arranged on the lower die; eight groups of movable grooves and fit grooves are correspondingly arranged, and eight groups of air inlet grooves are correspondingly arranged; jacking subassembly circumference symmetry sets up eight groups, and then under the air action of the certain pressure that the elastic potential energy cooperation air inlet duct of spring given into, can carry out quick the offset to the injection molding on the bed die to make things convenient for taking of injection molding.

Preferably, the middle part of the bottom surface of the lower die is provided with a connecting groove, and the ends of the eight groups of air inlet grooves far away from the movable groove are communicated in the connecting groove; when air with certain pressure needs to be fed, the air with certain pressure is uniformly dispersed into the eight groups of air inlet grooves through the connecting grooves.

Preferably, an injection molding pipe penetrates through the center of the top of the upper mold; a cavity is arranged between the upper die and the lower die, and the bottom end of the injection molding pipe is communicated in the cavity.

Preferably, the section of the fitting block is a T-shaped mechanism, and one end of the fitting block, which is far away from the fitting groove, is fitted and connected to the top end of the movable groove; the bottom end of the conjunction block is provided with a groove, and the outer side of the groove is attached to the side wall of the movable groove; the groove at the lower end of the conjunction block is communicated with the outside, so that the movable groove is not in a relatively closed state any more, air is continuously fed at the moment, and the air can directly act on the bottom of the injection molding part through the conjunction groove, thereby being beneficial to cleaning a lower die.

The utility model has the advantages that:

the utility model provides an injection mold with ejection mechanism, through setting up the jacking subassembly, when last mould and bed die do not merge, agree with the outstanding groove of agreeing with of piece, recess and external intercommunication this moment, and after last mould and bed die merge, the recess intercommunication is at the activity inslot this moment, the upper end in activity groove is sealed by agreeing with the piece, the activity groove is in relative enclosed state, mould and bed die in the separation this moment, the piece of agreeing with is popped up under the drive of spring, the injection molding on with the bed die is ejecting, the cooperation is with the air inlet action in the air inlet duct of activity groove intercommunication, realize that quick messenger agrees with the piece and pops out, and then can be ejecting with the injection molding.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

FIG. 1 is a perspective view of a first embodiment;

FIG. 2 is a cross-sectional view of the first embodiment;

FIG. 3 is an enlarged view of the portion A of FIG. 2;

FIG. 4 is a perspective view of a jacking assembly according to one embodiment;

FIG. 5 is a sectional view of the second embodiment;

illustration of the drawings:

11. an upper die; 111. a rubber ring; 12. a hydraulic lever; 13. a lower die; 131. a movable groove; 132. a fitting groove; 15. injection molding a tube; 16. an air inlet groove; 17. connecting grooves; 2. a jacking assembly; 21. fitting blocks; 23. a groove; 24. a straight rod; 25. a base plate; 26. a spring.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Specific examples are given below.

The first embodiment is as follows:

referring to fig. 1-4, the present invention provides an injection mold with an ejection mechanism, which includes an upper mold 11, a lower mold 13, a hydraulic rod 12 and a jacking assembly 2; a hydraulic rod 12 is fixedly connected between the upper die 11 and the lower die 13; the jacking assembly 2 is arranged at the bottom of the lower die 13;

the jacking assembly 2 consists of a fitting block 21, a straight rod 24, a bottom plate 25 and a spring 26; the fitting block 21 is fixedly connected to the top end of the straight rod 24; the bottom plate 25 is fixedly connected to the bottom end of the straight rod 24; the spring 26 is sleeved on the straight rod 24;

the bottom of the lower die 13 is provided with a movable groove 131 corresponding to the jacking assembly 2; one end of the spring 26 is fixedly connected to the side wall of the movable groove 131, and the other end of the spring 26 is fixedly connected to the bottom plate 25; the straight rod 24 penetrates through the movable groove 131; a matching groove 132 is formed in the position, corresponding to the movable groove 131, of the top surface of the lower die 13, and the matching groove 132 is communicated with the movable groove 131; the fitting block 21 is fitted and connected in the fitting groove 132.

When the upper die 11 and the lower die 13 are combined in operation, the upper die 11 extrudes the jacking component 2 on the lower die 13 and drives the fitting block 21 to move downwards until the fitting block is fitted and connected in the fitting groove 132, because the fitting block 21 protrudes out of the fitting groove 132 and the groove 23 at the bottom of the fitting block 21 is communicated with the outside when the upper die 11 and the lower die 13 are separated, the movable groove 131 is relatively open at the moment, after the upper die 11 and the lower die 13 are combined, the fitting block 21 seals the fitting groove 132 at the top and drives the spring 26 at the bottom to generate deformation and elastic potential energy, so that the groove 23 is not communicated with the outside air, the movable groove 131 is relatively closed at the moment, after the injection molding of the upper die 11 and the lower die 13 is finished, the upper die 11 and the lower die 13 are separated, and the fitting block 21 moves upwards under the elastic potential energy of the spring 26 at the bottom to drive the injection molding part at the top to be separated from the lower die 13, and then can realize the effect of taking fast to the injection molding.

Further, the bottom of the lower mold 13 is provided with an air inlet groove 16, and one end of the air inlet groove 16 is communicated with the movable groove 131.

During operation, when the upper mold 11 is separated from the lower mold 13, the conjunction block 21 is driven by the elastic potential energy of the spring 26 to be ejected upwards, so that the effect of ejecting an injection molding piece is achieved, the air inlet groove 16 communicated with the movable groove 131 is matched, when the upper mold 11 is separated from the lower mold 13, air with certain pressure is fed through the air inlet groove 16, the pressure inside the movable groove 131 is increased, and at the moment, under the synergistic effect of the pressure, the conjunction block 21 can be ejected quickly.

Furthermore, eight groups of the jacking assemblies 2 are arranged, and the eight groups of the jacking assemblies 2 are circumferentially and symmetrically arranged on the lower die 13; eight groups of movable grooves 131 and fit grooves 132 are correspondingly arranged, and eight groups of air inlet grooves 16 are correspondingly arranged.

During operation, jacking subassembly 2 circumference symmetry sets up eight groups, and then under the air action of the certain pressure that the elastic potential energy cooperation air inlet duct 16 of spring 26 given into, can carry out quick offset to the injection molding on the bed die 13 to make things convenient for taking of injection molding.

Furthermore, a connecting groove 17 is formed in the middle of the bottom surface of the lower die 13, and the ends of the eight sets of air inlet grooves 16 far away from the movable groove 131 are communicated with the connecting groove 17.

During operation, the connecting groove 17 is used for connecting an external air pipe, and when air with certain pressure needs to be fed, the air with certain pressure is uniformly dispersed into the eight groups of air inlet grooves 16 through the connecting groove 17.

An injection molding pipe 15 penetrates through the center of the top of the upper mold 11; a cavity is arranged between the upper die 11 and the lower die 13, and the bottom end of the injection molding pipe 15 is communicated in the cavity.

In operation, the injection molded tube 15 is used to inject molten plastic, as in the prior art, while the cavity is used to form the injection molded part.

Furthermore, the section of the fitting block 21 is a T-shaped mechanism, and one end of the fitting block 21, which is far away from the fitting groove 132, is fitted and connected to the top end of the movable groove 131; the bottom end of the conjunction block 21 is provided with a groove 23, and the outer side of the groove 23 is attached to the side wall of the movable groove 131.

During operation, the section of the conjunction block 21 is of a T-shaped structure, so that when the conjunction block is connected with the conjunction groove 132, the conjunction block 21 can seal the top of the movable groove 131, when the upper die 11 is separated from the lower die 13, the conjunction block 21 protrudes under the action of the spring 26, the groove 23 at the lower end of the conjunction block 21 is communicated with the outside, the movable groove 131 is not in a relatively closed state any more, air is continuously fed at the moment, and the air directly acts on the bottom of the injection molding part through the conjunction groove 132, so that the lower die 13 is cleaned.

Example two:

referring to fig. 5, in another embodiment of the first comparative example, a rubber ring 111 is further glued to the bottom end of the upper mold 11 in the first example; in operation, when the upper mold 11 and the lower mold 13 are combined, due to the arrangement of the rubber ring 111, a certain buffering effect exists between the upper mold 11 and the lower mold 13.

The working principle is as follows: after the injection mold is used, the plastic part is attached to the lower mold 13, so that the produced plastic part is difficult to take out, and the production efficiency of the plastic part is reduced;

when the device is used, when the upper die 11 and the lower die 13 are combined, the upper die 11 extrudes the jacking component 2 on the lower die 13 and drives the fitting block 21 to move downwards until the fitting block is connected in the fitting groove 132 in a fitting manner, because the fitting block 21 protrudes out of the fitting groove 132 when the upper die 11 is separated from the lower die 13, the groove 23 at the bottom of the fitting block 21 is communicated with the outside, at the moment, the movable groove 131 is relatively in an open state, after the upper die 11 is combined with the lower die 13, the fitting block 21 seals the fitting groove 132 at the top, and drives the spring 26 at the bottom of the fitting block to generate deformation and elastic potential energy, so that the groove 23 is not communicated with the outside air, at the moment, the movable groove 131 is in a relatively closed state, after the upper die 11 and the lower die 13 are injected, the upper die 11 is separated from the lower die 13, at the moment, the fitting block 21 moves upwards under the elastic potential energy of the spring 26 at the bottom, and drives the injection molding part at the top of the lower die 13 to be separated from the lower die, the injection molding part can be taken quickly;

when the upper die 11 is separated from the lower die 13, the conjunction block 21 is driven by the elastic potential energy of the spring 26 to be ejected upwards, so that the effect of ejecting the injection molding piece is achieved, the air inlet groove 16 communicated with the movable groove 131 is matched, when the upper die 11 is separated from the lower die 13, air with certain pressure is fed into the air inlet groove 16, the pressure inside the movable groove 131 is increased, and at the moment, under the synergistic effect of the pressure, the conjunction block 21 can be ejected quickly.

Because the section of the conjunction block 21 is of a T-shaped structure, when the conjunction block is connected with the conjunction groove 132, the conjunction block 21 can seal the top of the movable groove 131, and when the upper die 11 is separated from the lower die 13, the conjunction block 21 protrudes under the action of the spring 26, the groove 23 at the lower end of the conjunction block 21 is communicated with the outside, so that the movable groove 131 is not in a relatively closed state any more, and air is continuously fed at the moment, so that the air can directly act on the bottom of the injection molding part through the conjunction groove 132, and the lower die 13 is favorably cleaned.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides an injection mold with ejection mechanism which characterized in that: comprises an upper die (11), a lower die (13), a hydraulic rod (12) and a jacking assembly (2); a hydraulic rod (12) is fixedly connected between the upper die (11) and the lower die (13); the jacking assembly (2) is arranged at the bottom of the lower die (13);

the jacking assembly (2) consists of a fitting block (21), a straight rod (24), a bottom plate (25) and a spring (26); the conjunction block (21) is fixedly connected to the top end of the straight rod (24); the bottom plate (25) is fixedly connected to the bottom end of the straight rod (24); the spring (26) is sleeved on the straight rod (24);

the bottom of the lower die (13) is provided with a movable groove (131) corresponding to the jacking assembly (2); one end of the spring (26) is fixedly connected to the side wall of the movable groove (131), and the other end of the spring (26) is fixedly connected to the bottom plate (25); the straight rod (24) penetrates through the movable groove (131); a matching groove (132) is formed in the position, corresponding to the movable groove (131), of the top surface of the lower die (13), and the matching groove (132) is communicated with the movable groove (131); the fitting block (21) is fitted and connected in the fitting groove (132).

2. The injection mold with the ejection mechanism as claimed in claim 1, wherein: an air inlet groove (16) is formed in the bottom of the lower die (13), and one end of the air inlet groove (16) is communicated with the movable groove (131).

3. An injection mold having an ejection mechanism according to claim 2, wherein: eight groups of jacking assemblies (2) are arranged, and the eight groups of jacking assemblies (2) are circumferentially and symmetrically arranged on the lower die (13); eight groups of movable grooves (131) and fit grooves (132) are correspondingly arranged, and eight groups of air inlet grooves (16) are correspondingly arranged.

4. An injection mold having an ejection mechanism according to claim 3, wherein: connecting grooves (17) are formed in the middle of the bottom surface of the lower die (13), and eight groups of air inlet grooves (16) are communicated with one ends, far away from the movable grooves (131), of the connecting grooves (17).

5. An injection mold having an ejection mechanism according to claim 4, wherein: an injection molding pipe (15) penetrates through the center of the top of the upper die (11); a cavity is arranged between the upper die (11) and the lower die (13), and the bottom end of the injection molding pipe (15) is communicated in the cavity.

6. An injection mold having an ejection mechanism according to claim 5, wherein: the section of the fitting block (21) is a T-shaped mechanism, and one end, far away from the fitting groove (132), of the fitting block (21) is fitted and connected to the top end of the movable groove (131); the bottom end of the conjunction block (21) is provided with a groove (23), and the outer side of the groove (23) is attached to the side wall of the movable groove (131).