CN211105313U

CN211105313U - Precision mold with high-efficient processing

Info

Publication number: CN211105313U
Application number: CN201921870274.0U
Authority: CN
Inventors: 黄俊南; 孙学华; 吴伟霓; 粟斌
Original assignee: Shenzhen Hengjia Precision Mould Injection Co ltd
Current assignee: Shenzhen Hengjia Precision Mould Injection Co ltd
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-07-28
Anticipated expiration: 2029-11-01

Abstract

The utility model discloses an accurate mould with high-efficient processing, including upper die and lower die, the top of upper die runs through and is equipped with the pipe, the inboard of pipe is equipped with the guide arm, the top of guide arm is fixed with the limiting plate, the bottom of guide arm is connected with the kickboard, the top of pipe is fixed with seal housing, one side of pipe is equipped with the vacuum pump, be linked together through the pipeline between vacuum pump and the seal housing, the opposite side of vacuum pump is connected with the three-way pipe, one side bottom of lower die is connected with the injection molding pipe, the lower extreme of three-way pipe is connected with the connecting pipe, one side upper end of upper die is connected with the upper inlet pipe, the opposite side bottom of upper die is connected with the upper outlet pipe, the inboard of upper die encircles and is equipped with upper cooling water pipe, one side upper end of lower die is connected with lower inlet pipe, the product molding can be accelerated, and the injection molding efficiency is improved.

Description

Precision mold with high-efficient processing

Technical Field

The utility model relates to the technical field of mold, in particular to precision mold with high-efficient processing.

Background

An injection mould is a tool for producing plastic products, and is also a tool for endowing the plastic products with complete structures and accurate dimensions, the injection moulding is a processing method used when producing some parts with complex shapes in batches, in particular to a processing method used when injecting heated and melted plastics into a mould cavity from an injection moulding machine at high pressure, and obtaining a formed product after cooling and solidification, along with the rapid development of the plastic industry and the continuous improvement of the strength and the like of general and engineering plastics, the application range of the plastic products is continuously expanded, the consumption of the plastic products is also rising, the plastic mould is a tool for producing the plastic products and comprises a plurality of groups of parts, a forming mould cavity is arranged in the combination, when in injection moulding, the mould is clamped on the injection moulding machine, the melted plastics is injected into the forming mould cavity and is cooled and shaped in the mould cavity, then the upper mould and the lower mould are separated, and the products are ejected out of the mould cavity through an ejection system and, finally, the mold is closed again for the next injection molding, the whole injection molding process is performed circularly, the molds appearing in the current market have the advantages of simple operation, high processing strength, long service life and the like, and can basically meet most production requirements, however, for most injection molds, on one hand, air in the mold is not easy to discharge and is easy to mix in liquid plastic during the injection molding of the plastic, so that the injection molding time is long, and the quality of the injection molding product can cause problems, on the other hand, in order to enable the injection molding product to be rapidly molded, cooling water is required to be utilized to cool the injection molding product, so that the mold is easy to rust when being in a humid environment for a long time, on the other hand, the common mold is prevented from being broken in order to prolong the service life, so that a protective pad or other devices are used for protecting the mold, however, the protective pad is easily damaged by the high temperature of the mold during the production process, and the heat dissipation effect of the mold, which is reduced by the protective pad, is not favorable for the rapid solidification of the product.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides an accurate mould with high-efficient processing, can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a precise die with high-efficiency processing comprises an upper die and a lower die, wherein a guide pipe penetrates through the top of the upper die, a guide rod is arranged on the inner side of the guide pipe, a limiting plate is fixed on the top of the guide rod, a floating plate is connected to the bottom of the guide rod, a sealing shell is fixed on the top of the guide pipe, a vacuum pump is arranged on one side of the guide pipe and communicated with the sealing shell through a pipeline, a three-way pipe is connected to the other side of the vacuum pump, an injection molding pipe is connected to the bottom of one side of the lower die, a connecting pipe is connected to the lower end of the three-way pipe, an upper water inlet pipe is connected to the upper end of one side of the upper die, an upper water outlet pipe is connected to the bottom of the other side of the upper die, an upper cooling water pipe is arranged on the inner side of the upper, the lower side of the lower die is connected with a lower water outlet pipe, the inner side of the lower die is provided with a lower cooling water pipe in a surrounding mode, and two ends of the lower cooling water pipe are respectively connected with the lower water inlet pipe and the lower water outlet pipe.

Preferably, the top of the inner side of the upper die is provided with a groove matched with the floating plate.

Preferably, a fixed base is fixed at the bottom of the lower die, and an anti-slip pad is arranged at the bottom of the fixed base.

Preferably, a valve is arranged on the three-way pipe.

Preferably, a cavity is formed in the bottom of the inner side of the lower die, one side of the cavity is connected with the injection molding pipe, and the other side of the cavity is connected with the connecting pipe.

Preferably, a movable plate is arranged in the cavity, and one side, far away from the injection molding pipe, of the movable plate is connected with a compression spring.

Compared with the prior art, the utility model discloses following beneficial effect has: the precision mold with high-efficiency processing is characterized in that high-temperature plastic liquid is injected through an injection molding pipe, a valve and a switch are opened, air between an upper mold and a lower mold is discharged to the outside through a guide pipe, a connecting pipe and a three-way pipe by a vacuum pump in sequence, the plastic liquid flows into the mold under the dual action of injection pressure and suction force in the mold, the air in the mold is pumped out, the phenomenon that the air is mixed in liquid plastic is avoided, the injection molding time is long, and the quality of an injection molding product is poor, so that the interior of the mold can be quickly filled, after the liquid level of the plastic liquid reaches a floating plate, the floating plate moves upwards to the inner side of a groove under the buoyancy force, the plastic liquid can be prevented from overflowing, the guide pipe is protected, after the plastic liquid is filled between the upper mold and the lower mold, the hydraulic pressure on two sides of a movable plate, make can not have unnecessary plastics liquid in the mould, improve the quality of moulding plastics, the drawing of patterns of being convenient for, through last inlet tube and lower inlet tube water injection, the cooling water gets into in condenser tube and the condenser tube down and cools down mould and inside plastics liquid, can accelerate the product shaping, improves the efficiency of moulding plastics.

Drawings

Fig. 1 is the overall structure schematic diagram of the precision mold with high-efficiency processing of the utility model.

Fig. 2 is an installation schematic diagram of the guide rod of the precision mold with high-efficiency processing of the utility model.

In the figure: 1. an upper die; 2. a lower die; 3. a conduit; 4. a guide bar; 5. a limiting plate; 6. a floating plate; 7. sealing the housing; 8. a vacuum pump; 9. a three-way pipe; 10. injection molding a tube; 11. a connecting pipe; 12. an upper water inlet pipe; 13. an upper water outlet pipe; 14. an upper cooling water pipe; 15. a lower water inlet pipe; 16. a lower water outlet pipe; 17. a lower cooling water pipe; 18. a groove; 19. a fixed base; 20. a non-slip mat; 21. a valve; 22. a cavity; 23. a movable plate; 24. compressing the spring.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-2, a precision mold with high-efficiency processing comprises an upper mold 1 and a lower mold 2, wherein a guide pipe 3 is arranged at the top of the upper mold 1 in a penetrating manner, a guide rod 4 is arranged on the inner side of the guide pipe 3, a limiting plate 5 is fixed at the top of the guide rod 4, a floating plate 6 is connected at the bottom of the guide rod 4, a sealing shell 7 is fixed at the top of the guide pipe 3, a vacuum pump 8 is arranged at one side of the guide pipe 3, the vacuum pump 8 is communicated with the sealing shell 7 through a pipeline, a three-way pipe 9 is connected at the other side of the vacuum pump 8, an injection molding pipe 10 is connected at the bottom of one side of the lower mold 2, a connecting pipe 11 is connected at the lower end of the three-way pipe 9, an upper water inlet pipe 12 is connected at the upper end of one side of the upper mold, go up condenser tube 14 both ends respectively with go up water pipe 12 with go up outlet pipe 13 and connect, one side upper end of lower mould 2 is connected with down inlet tube 15, the opposite side bottom of lower mould 2 is connected with down outlet pipe 16, the inboard of lower mould 2 is encircleed and is equipped with down condenser tube 17, down condenser tube 17 both ends respectively with lower inlet tube 15 with outlet pipe 16 is connected down.

In this embodiment, preferably, a groove 18 adapted to the floating plate 6 is formed at the top of the inner side of the upper die 1.

In this embodiment, preferably, a fixing base 19 is fixed at the bottom of the lower mold 2, and a non-slip mat 20 is disposed at the bottom of the fixing base 19.

In this embodiment, preferably, a valve 21 is disposed on the three-way pipe 9.

In this embodiment, preferably, a cavity 22 is formed at the bottom of the inner side of the lower mold 2, one side of the cavity 22 is connected to the injection molding pipe 10, and the other side is connected to the connecting pipe 11.

In this embodiment, a movable plate 23 is preferably disposed in the cavity 22, and a compression spring 24 is connected to a side of the movable plate away from the injection pipe 10.

It should be noted that, the utility model relates to a precision mold with high-efficient processing, when using, inject high temperature plastic liquid through injection pipe 10, open valve 13 and switch 9, vacuum pump 8 loops through pipe 8 with the air between last mould 1 and lower mould 2, connecting pipe 11 and three-way pipe 12 are discharged to the outside, plastic liquid flows into the mould inside under the dual function of injection pressure and the inside suction of mould, because inside air is taken out, avoid the air to mix the inside of liquid plastics, the injection time is longer, the bad condition of injection moulding product quality, thus can fill up the mould inside fast, after the liquid level of plastic liquid reaches kickboard 19, kickboard 19 upwards moves to the recess 18 inboard under buoyancy, can avoid plastic liquid to spill over, thereby protect pipe 8, after filling up plastic liquid between last mould 1 and lower mould 2, make the hydraulic pressure of fly leaf 24 both sides equal, fly leaf 24 moves the pipe 10 tip of moulding plastics under compression spring 24's pulling force this moment for can not have unnecessary plastics liquid in the mould, improve the quality of moulding plastics, the drawing of patterns of being convenient for, through last inlet tube 12 and lower inlet tube 15 water injection, the cooling water gets into and cools down mould and inside plastics liquid in condenser tube 14 and the condenser tube 17 down, can accelerate the product shaping, improves the efficiency of moulding plastics.

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 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. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a precision mold with high-efficient processing, includes mould (1) and lower mould (2), its characterized in that: the guide pipe (3) penetrates through the top of the upper die (1), a guide rod (4) is arranged on the inner side of the guide pipe (3), a limiting plate (5) is fixed on the top of the guide rod (4), a floating plate (6) is connected to the bottom of the guide rod (4), a sealing shell (7) is fixed on the top of the guide pipe (3), a vacuum pump (8) is arranged on one side of the guide pipe (3), the vacuum pump (8) is communicated with the sealing shell (7) through a pipeline, a three-way pipe (9) is connected to the other side of the vacuum pump (8), an injection molding pipe (10) is connected to the bottom of one side of the lower die (2), a connecting pipe (11) is connected to the lower end of the three-way pipe (9), an upper water inlet pipe (12) is connected to the upper end of one side of the upper die (1), an, go up the inboard of mould (1) and encircle and be equipped with cooling water pipe (14), the both ends of going up cooling water pipe (14) respectively with go up inlet tube (12) with go up outlet pipe (13) and connect, one side upper end of lower mould (2) is connected with lower inlet tube (15), the opposite side bottom of lower mould (2) is connected with down outlet pipe (16), the inboard of lower mould (2) is encircleed and is equipped with down cooling water pipe (17), down the both ends of cooling water pipe (17) respectively with lower inlet tube (15) with outlet pipe (16) are connected down.

2. The precision mold with high efficiency of machining according to claim 1, characterized in that: and a groove (18) matched with the floating plate (6) is formed in the top of the inner side of the upper die (1).

3. The precision mold with high efficiency of machining according to claim 1, characterized in that: the bottom of the lower die (2) is fixed with a fixed base (19), and the bottom of the fixed base (19) is provided with an anti-slip pad (20).

4. The precision mold with high efficiency of machining according to claim 1, characterized in that: and a valve (21) is arranged on the three-way pipe (9).

5. The precision mold with high efficiency of machining according to claim 1, characterized in that: the bottom of the inner side of the lower die (2) is provided with a cavity (22), one side of the cavity (22) is connected with the injection molding pipe (10), and the other side of the cavity is connected with the connecting pipe (11).

6. The precision mold with high efficiency of machining according to claim 5, characterized in that: a movable plate (23) is arranged in the cavity (22), and one side, far away from the injection molding pipe (10), of the movable plate (23) is connected with a compression spring (24).