CN212446159U

CN212446159U - Demoulding device of plastic mould

Info

Publication number: CN212446159U
Application number: CN202020854014.0U
Authority: CN
Inventors: 仇骏杰
Original assignee: Dongguan Jiehexin Mould Co ltd
Current assignee: Dongguan Jiehexin Mould Co ltd
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2021-02-02
Anticipated expiration: 2030-05-20

Abstract

The utility model relates to the technical field of plastic molds, in particular to a demoulding device of a plastic mold, which comprises an upper mold and a lower mold, wherein a strip-shaped plate installation cavity is arranged in the lower mold, a slidable strip-shaped plate is arranged in the strip-shaped plate installation cavity, a push rod installation through hole communicated with one end of the strip-shaped plate installation cavity is arranged on the lower mold, and a push rod which can slide and is in threaded connection with the strip-shaped plate is arranged in the push rod installation through hole; the lower die is also provided with a sleeve mounting through hole communicated with the other end of the strip-shaped plate mounting cavity, a first sleeve which can slide and is in threaded connection with the strip-shaped plate is arranged in the sleeve mounting through hole, and the end face, close to the lower die, of the upper die is provided with a second sleeve; the lower part of the lower die, which is positioned in the strip-shaped plate installation cavity, is provided with a spring installation cavity, and the end part of the spring installation cavity is abutted against a spring below the strip-shaped plate. The utility model discloses not only comparatively stable and convenient realization when the compound die is fixed to the push rod to comparatively stable realization behind the die sinking is ejecting to the module.

Description

Demoulding device of plastic mould

Technical Field

The utility model relates to a plastic mould technical field, specifically speaking relates to a shedder of plastic mould.

Background

The plastic mold is a short name for a combined mold used for compression molding, extrusion molding, injection, blow molding and low-foaming molding. The coordination change of the male die, the female die and the auxiliary forming system of the die can process a series of plastic parts with different shapes and sizes. In the processing process of a plastic part, the ejection demoulding device is one of vital devices, and when the existing ejection demoulding device performs ejection work, the phenomenon that an upper mould is directly cracked or flicked off and the like frequently occurs during ejection, so that great potential safety hazards are generated, and the quality and the efficiency of demoulding the plastic part are influenced.

Patent document with publication number CN209775417U discloses an injection molding mold, which comprises an upper mold and a lower mold, wherein the top of the upper mold is connected with a mold handle, a mold cavity is arranged between the upper mold and the lower mold, and a slide way horizontally arranged is arranged on the lower mold. Although the utility model discloses the structure has realized the ejecting to the module, the cooperation of push rod and oblique slide bar is relatively poor stability when using.

SUMMERY OF THE UTILITY MODEL

The ejecting defect of module to the unable comparatively stable of ordinary injection moulding mould that exists among the prior art, the utility model provides a shedder of plastic mould. The ejection mechanism can realize the function of ejecting the module more stably.

In order to solve the technical problem, the utility model discloses a following technical scheme can solve:

a demoulding device of a plastic mould comprises an upper mould and a lower mould, wherein a strip-shaped plate installation cavity with an opening positioned on the side wall of the lower mould is arranged in the lower mould, a strip-shaped plate capable of sliding along the height direction of the lower mould is arranged in the strip-shaped plate installation cavity, a push rod installation through hole communicated with one end of the strip-shaped plate installation cavity is arranged on the lower mould, and a push rod capable of sliding and in threaded connection with the strip-shaped plate is arranged in the push rod installation through hole; the lower die is also provided with a sleeve mounting through hole communicated with the other end of the strip-shaped plate mounting cavity, a first sleeve which can slide and is in threaded connection with the strip-shaped plate is arranged in the sleeve mounting through hole, and the end surface, close to the lower die, of the upper die is provided with a second sleeve which is in clearance fit with the sleeve mounting through hole and is used for pushing the first sleeve downwards; the lower part of the lower die, which is positioned in the strip-shaped plate installation cavity, is provided with a spring installation cavity, and the end part of the spring installation cavity is abutted against a spring below the strip-shaped plate.

Through the utility model discloses a setting of plastic mould's shedder structure, not only comparatively stable and convenient realization when the compound die is fixed to the push rod to comparatively stable realization behind the die sinking is ejecting to the module.

Preferably, the lower die is connected with a guide shaft in the sleeve mounting through hole through a bolt, the guide shaft is in clearance fit with the inner walls of the first sleeve and the second sleeve, and the upper end face of the guide shaft is flush with the upper end face of the sleeve mounting through hole.

Through the utility model discloses a setting of guiding axle can avoid the bar shaped plate to take place to rock when removing to the stability of shedder of this plastic mould when the drawing of patterns has been promoted to the preferred.

Preferably, one end of the spring installation cavity penetrates through the lower die, threads are arranged on the inner wall of the spring installation cavity, a rotating seat matched with the threads is arranged in the spring installation cavity, one end of the spring abuts against the bottom surface of the strip-shaped plate, the other end of the spring abuts against the rotating seat, and a cross-shaped groove is formed in the end face, opposite to the spring, of the rotating seat.

Through the utility model discloses a screw thread and the cooperation of rotating the seat can be adjusted the elasticity of spring to make the module can be comparatively stable by ejecting lower mould.

Preferably, the upper end of the push rod mounting through hole is expanded outwards to form a mounting step with a regular hexagon section, and the upper end of the push rod is expanded outwards to form a hexagon flange which is in clearance fit with the mounting step.

Through the utility model discloses a cooperation of installation step and hexagon flange had both promoted the leakproofness of die cavity when the compound die, had made things convenient for people to install the push rod on the bar shaped plate again, had also prevented the damage of module when the drawing of patterns simultaneously.

Preferably, a hydraulic oil cylinder is fixed on the lower die, and the end part of a piston rod of the hydraulic oil cylinder is fixedly connected with the upper die.

Through the utility model discloses a hydraulic cylinder's setting, comparatively simple and convenient realization compound die and die sinking.

Preferably, a plurality of water delivery channels penetrating through the lower die are arranged in the lower die.

Through the utility model discloses a water delivery channel's setting has reduced the required time of module cooling, has promoted the production efficiency of module.

Drawings

Fig. 1 is a schematic structural view of a demolding device for a plastic mold in embodiment 1.

Fig. 2 is a sectional view of a mold release device of the plastic mold of fig. 1.

Fig. 3 is an enlarged view of a portion a in fig. 2.

The names of the parts indicated by the numerical references in the drawings are as follows:

110. an upper die; 120. a lower die; 121. a strip-shaped plate mounting cavity; 122. a water delivery channel; 130. a hydraulic cylinder; 210. a mold cavity; 310. a strip plate; 320. the push rod is provided with a through hole; 321. mounting a step; 330. a push rod; 331. a hexagonal flange; 340. the sleeve is provided with a through hole; 350. a first sleeve; 360. a second sleeve; 370. a spring mounting cavity; 371. a thread; 380. a spring; 390. a guide shaft; 3100. a rotating seat; 3101. a cross-shaped groove.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples. It is to be understood that the examples are illustrative of the invention only and are not limiting.

Example 1

As shown in fig. 1-3, the present embodiment provides a demolding device for a plastic mold, including an upper mold 110 and a lower mold 120, a strip-shaped plate installation cavity 121 with an opening located on a side wall of the lower mold 120 is disposed in the lower mold 120, a strip-shaped plate 310 capable of sliding along a height direction of the lower mold 120 is disposed in the strip-shaped plate installation cavity 121, a push rod installation through hole 320 communicated with one end of the strip-shaped plate installation cavity 121 is disposed on the lower mold 120, and a push rod 330 capable of sliding and in threaded connection with the strip-shaped plate 310 is disposed in the push rod installation; the lower die 120 is further provided with a sleeve mounting through hole 340 communicated with the other end of the strip-shaped plate mounting cavity 121, a first sleeve 350 which can slide and is in threaded connection with the strip-shaped plate 310 is arranged in the sleeve mounting through hole 340, and the end face, close to the lower die 120, of the upper die 110 is provided with a second sleeve 360 which is in clearance fit with the sleeve mounting through hole 340 and is used for pushing the first sleeve 350 downwards; a spring installation cavity 370 is arranged below the strip plate installation cavity 121 in the lower die 120, and a spring 380 with an end abutting against the lower side of the strip plate 310 is arranged in the spring installation cavity 370.

Through the arrangement of the structure of the demolding device of the plastic mold in the embodiment, the upper mold 110 can be moved to move towards the end of the lower mold 120 before injection molding, in the process that the upper mold 110 moves towards the lower mold 120, the second sleeve 360 can press the first sleeve 350 to enable the first sleeve 350 to move downwards, due to the threaded connection between the first sleeve 350 and the strip-shaped plate 310, the strip-shaped plate 310 can move along with the first sleeve 350, due to the threaded connection between the push rod 330 and the strip-shaped plate 310, the push rod 330 can move along with the strip-shaped plate 310, so that a relatively sealed mold cavity 210 is formed between the upper mold 110 and the lower mold 120, and then injection molding is performed into the mold cavity 210; after the injection molding is completed, the upper mold 110 is moved to separate the upper mold 110 from the lower mold 120, and during the movement of the upper mold 110, the strip 310 will drive the push rod 330 to move upwards due to the action of the spring 380, so as to eject the mold on the lower mold 120. The injection molding mold in the embodiment limits the push rod through the matching of the strip-shaped plate 310, the first sleeve 350 and the second sleeve 360, and is more stable in use compared with a comparison file in which the push rod is limited through the matching between the push rod and the oblique slider, and the injection molding mold spring 380 in the embodiment directly acts on the strip-shaped plate 310, so that the mold is more stable in ejecting out the lower mold 120.

In this embodiment, the lower die 120 is bolted with a guide shaft 390 located in the sleeve mounting through hole 340, the guide shaft 390 is in clearance fit with the inner walls of the first sleeve 350 and the second sleeve 360, and the upper end surface of the guide shaft 390 is flush with the upper end surface of the sleeve mounting through hole 340.

Through the setting of guiding axle 390 in this embodiment, can make strip shaped plate 310 more stable when sliding in strip shaped plate installation cavity 121 through guiding axle 390 and first sleeve 350's cooperation, avoided strip shaped plate 310 to take place to rock when removing to the promotion of preferred is the stability of shedder when the drawing of patterns of this plastic mould.

In this embodiment, one end of the spring installation cavity 370 penetrates through the lower mold 120, the inner wall of the spring installation cavity 370 is provided with threads 371, a rotating seat 3100 matched with the threads 371 is arranged in the spring installation cavity 370, one end of the spring 380 abuts against the bottom surface of the strip-shaped plate 310, the other end of the spring 380 abuts against the rotating seat 3100, and a cross-shaped groove 3110 is arranged on the end surface, opposite to the spring 380, of the rotating seat 3100.

Through the matching of the thread 371 and the rotating seat 3100 in this embodiment, the rotating seat 3100 can be rotated to adjust the compression amount of the spring 380, that is, the elastic force of the spring 380, so that the mold can be ejected out of the lower mold 120 more stably.

In this embodiment, the upper end of the push rod mounting through hole 320 is expanded outward to form a mounting step 321 with a regular hexagonal cross section, and the upper end of the push rod is expanded outward to form a hexagonal flange 331 in clearance fit with the mounting step 321.

Through the matching of the mounting step 321 and the hexagonal flange 331 in the embodiment, when mold closing is performed, the hexagonal flange 331 is tightly abutted against the mounting step 321, so that the sealing performance of the mold cavity 321 when mold closing is improved; when the push rod 330 is installed, the hexagonal flange 331 is convenient for people to screw the push rod 330, so that people can conveniently install the push rod 330 on the strip-shaped plate 310; the hexagonal flange 331 increases the contact area of the push rod 330 with the module when the module is ejected, thereby preventing damage to the module.

In this embodiment, the lower mold 120 is fixed with a hydraulic cylinder 130, and the end of the piston rod of the hydraulic cylinder 130 is fixedly connected to the upper mold 110.

Through the arrangement of the hydraulic cylinder 130 in the embodiment, the lower mold 120 can be fixed during the production of injection molding parts, and then the hydraulic cylinder 130 is driven to enable the upper mold 110 to move to realize mold closing and mold opening, so that the mold closing and mold opening are realized relatively simply and conveniently.

In this embodiment, the lower mold 120 has a plurality of water passages 122 penetrating through the lower mold 120.

Through the arrangement of the water delivery channel 122 in the embodiment, after injection molding is completed, water flow is introduced into the water delivery channel 122 to cool the lower die 120, so that the time required by cooling the module is shortened, and the production efficiency of the module is improved.

In short, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the scope of the present invention.

Claims

1. The utility model provides a shedder of plastic mould, includes mould (110) and lower mould (120), its characterized in that: a strip-shaped plate installation cavity (121) with an opening positioned on the side wall of the lower die (120) is arranged in the lower die (120), a strip-shaped plate (310) capable of sliding along the height direction of the lower die (120) is arranged in the strip-shaped plate installation cavity (121), a push rod installation through hole (320) communicated with one end of the strip-shaped plate installation cavity (121) is arranged on the lower die (120), and a push rod (330) capable of sliding and in threaded connection with the strip-shaped plate (310) is arranged in the push rod installation through hole (320); a sleeve mounting through hole (340) communicated with the other end of the strip-shaped plate mounting cavity (121) is further formed in the lower die (120), a first sleeve (350) which can slide and is in threaded connection with the strip-shaped plate (310) is arranged in the sleeve mounting through hole (340), and a second sleeve (360) which is in clearance fit with the sleeve mounting through hole (340) and is used for pushing the first sleeve (350) downwards is arranged on the end face, close to the lower die (120), of the upper die (110); a spring installation cavity (370) is arranged below the strip-shaped plate installation cavity (121) in the lower die (120), and a spring (380) with an end abutting against the lower side of the strip-shaped plate (310) is arranged in the spring installation cavity (370).

2. The apparatus for removing a plastic mold of claim 1, wherein: the bolt connection has guiding axle (390) that is arranged in sleeve installation through-hole (340) in lower mould (120), guiding axle (390) and the inner wall clearance fit of first sleeve (350) and second sleeve (360), and the up end of guiding axle (390) is parallel and level with the up end of sleeve installation through-hole (340).

3. The apparatus for removing a plastic mold of claim 1, wherein: the one end of spring installation cavity (370) runs through lower mould (120), is equipped with screw thread (371) on the inner wall of spring installation cavity (370), is equipped with in spring installation cavity (370) and rotates seat (3100) with screw thread (371) matched with, and the one end of spring (380) is supported and is leaned on the bottom surface of bar shaped plate (310), and the other end of spring (380) supports and leans on rotating seat (3100), rotates and is equipped with cross recess (3101) on seat (3100) and the terminal surface relative with spring (380).

4. The apparatus for removing a plastic mold of claim 1, wherein: the upper end part of the push rod mounting through hole (320) expands outwards to form a mounting step (321) with a regular hexagon section, and the upper end part of the push rod expands outwards to form a hexagonal flange (331) which is in clearance fit with the mounting step (321).

5. The apparatus for removing a plastic mold of claim 1, wherein: a hydraulic oil cylinder (130) is fixed on the lower die (120), and the end part of a piston rod of the hydraulic oil cylinder (130) is fixedly connected with the upper die (110).

6. The apparatus for removing a plastic mold of claim 1, wherein: the lower die (120) is internally provided with a plurality of water delivery channels (122) which penetrate through the lower die (120).