CN216544562U

CN216544562U - Special-shaped piece injection molding die

Info

Publication number: CN216544562U
Application number: CN202220002719.9U
Authority: CN
Inventors: 龚奎
Original assignee: Tianjin Dongjunincreasingly Precision Mould Co ltd
Current assignee: Tianjin Dongjunincreasingly Precision Mould Co ltd
Priority date: 2022-01-04
Filing date: 2022-01-04
Publication date: 2022-05-17
Anticipated expiration: 2032-01-04

Abstract

The utility model discloses a special-shaped piece injection molding die which comprises a base, wherein a lower supporting seat and an upper supporting seat are installed at the top of the base, a lower die seat and a molding seat are arranged on the inner side of the lower supporting seat, a cavity is formed in the molding seat, the upper side of the lower die seat is connected with an upper die seat through a hydraulic cylinder, a die core is fixed at the bottom of the upper die seat, a top plate is arranged at the top of the upper die seat, a pouring gate is arranged on the top plate and connected with a guide pipe through an injection mechanism, an auxiliary stripping mechanism is arranged at the lower side of the cavity and consists of a stripping cylinder arranged in the lower die seat and a push plate at the top of the stripping cylinder. The demoulding mechanism is scientific and reasonable in structural design and stable in structure, the processing effect is effectively guaranteed, and the formed workpiece can be quickly pushed out by arranging the auxiliary stripping mechanism consisting of the demoulding cylinder and the push plate, so that the demoulding efficiency is accelerated, and convenience is brought to workers.

Description

Special-shaped piece injection molding die

Technical Field

The utility model relates to the technical field of mould equipment, in particular to an injection molding mould for a special-shaped part.

Background

In the in-process of dysmorphism product production, the shaping is a very important part, and during plastic molding, forming die often can be used, and forming die generally includes mould, lower mould and mould fixed block, generally is through bolted connection between mould and the lower mould on the current forming die, when closing last mould and lower mould, will twist the bolt, still say the bolt and turn round after the completion of moulding plastics, takes out plastics again, and is time-consuming and laboursome. The existing injection molding mold is high in manufacturing cost, the plastic can be taken out only after the plastic is cooled and molded after injection molding is finished, the existing molding mold is not provided with a cooling device, molding efficiency is low, a workpiece is not convenient to take out after molding is finished, and certain defects are caused. To this end, we propose a profile injection molding die.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to an injection mold for a special-shaped member, which solves the above problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a dysmorphism injection moulding mould, includes the base, under bracing seat and upper bracket are installed at the base top, under bracing seat inboard is provided with die holder and one-tenth die holder, set up the die cavity in the one-tenth die holder, the die holder upside passes through pneumatic cylinder connection upper die base, the upper die base bottom is fixed with the core, the upper die base top is provided with the roof, be provided with the runner on the roof, the runner passes through injection mechanism connecting pipe, the die cavity downside is provided with supplementary material mechanism of taking off, supplementary material mechanism of taking off comprises the push pedal at drawing of patterns cylinder rather than the top that sets up in the die holder.

Preferably, a spring is arranged inside the lower supporting seat.

Preferably, a guide rod is movably inserted into the lower die base, the forming base and the upper die base.

Preferably, a spiral pipe is arranged in the forming seat around the cavity, and a valve is arranged at the end part of the spiral pipe.

Compared with the prior art, the utility model has the beneficial effects that: the injection molding die for the special-shaped part has simple and reasonable structural design and stronger practicability, and by arranging the guide rod as a guide part, so that the forming seat and the upper die seat can be accurately butted, the stability of the die in the opening and closing process is ensured, the processing effect is effectively ensured, the auxiliary stripping mechanism consisting of the stripping cylinder and the push plate can quickly push out the formed workpiece, thereby accelerating the demoulding efficiency and bringing convenience for workers, and by arranging the spiral pipe around the cavity in the forming seat, when in work, cold water is led into the spiral pipe to cool the mould quickly, thereby accelerating the injection molding efficiency, effectively improving the self quality of the workpiece, and by arranging the spring as a buffer mechanism, the lifting process of the integral structure at the lower part of the top plate can achieve a good buffering effect, so that equipment damage caused by large impact force generated between the dies is avoided.

Drawings

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

FIG. 2 is a schematic view of a forming base according to the present invention.

In the figure: the device comprises a base 1, a lower supporting seat 11, a lower supporting seat 12, a forming seat 13, a cavity 14, an upper supporting seat 15, a top plate 16, a spring 17, an upper die seat 18, a core 19, a gate 2, an injection mechanism 21, a guide pipe 22, a hydraulic cylinder 23, a guide rod 24, a demoulding cylinder 25, a push plate 26, a spiral pipe 27 and a valve 28.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a dysmorphism injection moulding mould, which comprises a base 1, lower supporting seat 11 and last supporting seat 15 are installed at 1 top of base, lower supporting seat 11 is fixed on base 1, the inside spring 17 that is provided with of lower supporting seat 11, at the in-process that last supporting seat 15 goes up and down along with roof 16, the top and the 15 inner wall contacts of last supporting seat of spring 17, thereby play the cushioning effect, as buffer gear through setting up spring 17, in-process that goes up and down at 16 lower part overall structure of roof can play good buffering effect, thereby avoid producing great impact force between the mould and cause equipment impaired.

The inner side of the lower supporting seat 11 is provided with a lower die seat 12 and a forming seat 13, the forming seat 13 is arranged at the top of the lower die seat 12, a cavity 14 is arranged in the forming seat 13, the upper side of the lower die seat 12 is connected with an upper die seat 18 through a hydraulic cylinder 23, the hydraulic cylinder 23 is composed of a cylinder body and a piston rod, the cylinder body is fixed on the lower die seat 12, the piston rod is fixedly connected with the bottom wall of the upper die seat 18, a core 19 is fixed at the bottom of the upper die seat 18, the core 19 enters the cavity 14 when in work, a workpiece is formed outside the core 19, the top of the upper die seat 18 is provided with a top plate 16, a sprue 2 is arranged on the top plate 16, the sprue 2 is connected with a conduit 22 through an injection mechanism 21, the opening of the conduit 22 is arranged at the upper side of a feed inlet of the cavity 14, when in work, the material is added from the sprue 2, the material is heated into a molten state through the injection mechanism 21 and then is injected into the cavity 14 at a high speed, the material cooling forms the shaping work piece, and the die cavity 14 downside is provided with supplementary material mechanism of taking off, and lower die holder 12, shaping

seat

13 and 18 movable interpolations of upper die base are equipped with guide arm 24, through setting up guide arm 24 as leading part for shaping seat 13 can accurate butt joint with upper die base 18, has guaranteed the stability of mould switching in-process, has effectively guaranteed the result of processing.

The auxiliary stripping mechanism consists of a stripping cylinder 25 arranged in the lower die holder 12 and a push plate 26 at the top of the stripping cylinder, after a workpiece is formed, a hydraulic cylinder 23 is started through a switch, the hydraulic cylinder 23 quickly jacks up the upper die holder 18, the core 19 is withdrawn from the die cavity 14, then the stripping cylinder 25 is started, a piston rod of the stripping cylinder 25 extends out to drive the push plate 26 to move upwards, so that the workpiece can be quickly ejected out, the stripping efficiency of the workpiece is effectively improved, the formed workpiece can be quickly ejected through the auxiliary stripping mechanism consisting of the stripping cylinder 25 and the push plate 26, so that the stripping efficiency is accelerated, convenience is brought to workers, a spiral pipe 27 is arranged in the forming holder 13 around the die cavity 14, a valve 28 is arranged at the end part of the spiral pipe 27, the spiral pipe 27 is arranged in the forming holder 13 around the die cavity 14, and cold water can be quickly cooled by leading cold water into the spiral pipe 27 during working, thereby accelerating the injection molding efficiency and effectively improving the self quality of the workpiece.

The working principle is as follows:

this kind of dysmorphism injection molding mould, when carrying out the injection flow, the upper die base 18 bottom is laminated with the shaping seat 13 upside, core 19 blocks in the die cavity 14, add the material from runner 2, the material is heated into the molten condition through injection mechanism 21 and is followed the opening of pipe 22 and penetrated in the die cavity 14 at a high speed, after a period of time, the material cooling forms the shaping work piece that matches with core 19, in order to accelerate work piece shaping efficiency in this process, leading-in cold water in spiral pipe 27 is to accessible shaping seat 13 external valve, cool off shaping seat 13 inside at the flow in-process of cold water, thereby make inside heat transfer fast, improve work piece shaping efficiency, later start hydraulic cylinder 23 and jack up upper die base 18 fast, core 19 withdraws from the die cavity 14, start drawing of patterns cylinder 25 and can be through push pedal 26 moves upward quick ejecting work piece.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A dysmorphism injection moulding mould, includes base (1), its characterized in that: lower carriage (11) and upper bracket (15) are installed at base (1) top, lower carriage (11) inboard is provided with die holder (12) and one-tenth die holder (13), set up die cavity (14) in one-tenth die holder (13), die holder (12) upside passes through pneumatic cylinder (23) and connects upper die base (18), upper die base (18) bottom is fixed with core (19), upper die base (18) top is provided with roof (16), be provided with runner (2) on roof (16), runner (2) are through injection mechanism (21) connecting tube (22), die cavity (14) downside is provided with supplementary stripper mechanism, supplementary stripper mechanism comprises drawing of patterns cylinder (25) rather than the push pedal (26) at top that sets up in die holder (12).

2. A profile injection mold according to claim 1, wherein: and a spring (17) is arranged in the lower supporting seat (11).

3. A profile injection mold according to claim 1, wherein: and guide rods (24) are movably inserted in the lower die holder (12), the forming holder (13) and the upper die holder (18).

4. A profile injection mold according to claim 1, wherein: a spiral pipe (27) is arranged in the forming seat (13) around the cavity (14), and a valve (28) is arranged at the end part of the spiral pipe (27).