CN209240420U - An injection mold for easy demoulding - Google Patents

Abstract

The utility model discloses a kind of easily demoulding injection molds, including upper mounted plate and bottom plate, the two sides of upper mounted plate pass through support column and are fixedly connected with bottom plate, the two sides on upper mounted plate top are fixed with hydraulic cylinder, hydraulic cylinder is fixedly connected by the hydraulic stem through upper mounted plate with the top of upper mold, the guide rod that the two sides of upper mold are fixed with interts connection with support column respectively, die cavity is offered immediately below upper mold, the two sides of die cavity inner tip are embedded with push plate, a kind of easily demoulding injection mold of the utility model, upper die and lower die coincide, fluid body is injected by injection molding tube, to form required shape, after sizing, pass through hydraulic cylinder works, make contraction of hydraulic pressure bar, to make upper mold move up along support column, pass through the effect of push rod and push plate, the mold inside die cavity is set quickly to take off From achieving the purpose that fast demoulding, greatly improve work efficiency, overall structure is simple, practical.

Description

An injection mold for easy demoulding

technical field

The utility model relates to an injection mold, in particular to an injection mold which is convenient for demoulding, and belongs to the technical field of mold equipment.

Background technique

Injection molding is a processing method used in the mass production of certain complex-shaped parts. Specifically, it refers to injecting heated and melted plastic into a mold cavity under high pressure from an injection molding machine, and after cooling and solidifying, a molded product is obtained. According to the molding process, it can be divided into plastic transfer mold, blow molding mold, casting mold, thermoforming mold, hot compression mold (compression mold), injection mold, etc. Among them, the hot compression mold can be divided into overflow type, semi- There are three types of overflow type and non-overflow type. The injection mold can be divided into two types: cold runner mold and hot runner mold according to the gating system, but no matter what kind of injection molding process, injection molds are required.

In the molding process of injection molds, sometimes due to accidents such as operational errors, it is easy to pose a threat to the personal safety of workers. In addition, after the injection molding is completed, demoulding is time-consuming and laborious, which is likely to cause damage to the injection mold and affect the pass rate of the product. decrease productivity.

Contents of the invention

The purpose of this utility model is to provide an injection mold that is easy to demould, so as to solve the problems of low working efficiency of the injection mold and low quality of the produced product proposed in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: an injection mold for easy demoulding, including an upper fixing plate and a lower fixing plate, both sides of the upper fixing plate are fixed to the lower fixing plate by supporting columns The two sides of the top of the upper fixing plate are fixedly equipped with hydraulic cylinders, and the hydraulic cylinders are fixedly connected with the top of the upper die through the hydraulic rods passing through the upper fixing plate, and the two sides of the upper die are fixed with The guide rods of the guide rods are interspersed and connected with the support columns respectively, a mold groove is opened directly below the upper mold, and push plates are embedded on both sides of the top inside of the mold groove, and the push rod at the top of the push plate runs through the The upper mold and the upper fixed plate are fixedly connected with the limit block, the end of the push rod close to the upper mold is fixedly sleeved with a limit ring, and the outer sleeve of the push rod is provided with a return spring, and the return spring One end of the upper die is fixedly connected with the bottom end of the upper fixing plate, and a lower die is provided directly below the upper die.

As a preferred technical solution of the utility model, the support column is a hollow cylindrical stainless steel body.

As a preferred technical solution of the present invention, a hydraulic cylinder touch switch is fixed on both sides of the top of the lower fixing plate, and the hydraulic cylinder is electrically connected to an external power supply through the hydraulic cylinder touch switch.

As a preferred technical solution of the present invention, an injection tube is embedded at the center of the top of the upper mold, and the injection tube is fixedly connected to the output end of the external liquid storage tank.

As a preferred technical solution of the present utility model, both sides of the lower mold are fixedly connected to the support columns through connecting plates, cold water pipes are laid on the inner sides of the lower mold, and the convex body of the lower mold A number of closable air blowing ports are arranged at equal intervals on the sides, and the air blowing ports are fixedly connected to the air outlet end of the air pump through the air pipe. Fixed connection.

Compared with the prior art, the beneficial effect of the utility model is: the utility model is an injection mold that is easy to demould, the upper mold and the lower mold are matched, and the fluid body is injected through the injection tube to form the required shape, and the mold is fixed. After the end, the hydraulic cylinder works to shrink the hydraulic rod, so that the upper mold moves up along the support column, and the mold inside the mold cavity can be quickly detached through the action of the push rod and the push plate to achieve the purpose of rapid demoulding. The work efficiency is greatly improved, the overall structure is simple, the cost is low, the practicability is strong, and it is easy to popularize.

Description of drawings

Fig. 1 is a schematic diagram of the main view structure of the utility model;

Fig. 2 is the sectional structure schematic diagram of the utility model;

Fig. 3 is a schematic diagram of the enlarged structure of the push rod of the present invention.

In the figure: 1. Upper fixed plate; 2. Support column; 3. Lower fixed plate; 4. Hydraulic cylinder; 5. Hydraulic rod; 6. Upper die; 7. Guide rod; 10. Cold water pipe; 11. Blowing port; 12. Air pump; 13. Air pipe; 14. Hydraulic cylinder touch switch; 15. Injection tube; 16. Limit block; 17. Push rod; 18. Push plate; 19. Limit Ring; 20, return spring.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1-3, the utility model provides a kind of injection mold that is easy to demould, comprises upper fixed plate 1 and lower fixed plate 3, both sides of upper fixed plate 1 are all fixed by support column 2 and lower fixed plate 3 connection, both sides of the top of the upper fixed plate 1 are fixedly equipped with a hydraulic cylinder 4, the hydraulic cylinder 4 is fixedly connected with the top of the upper mold 6 through the hydraulic rod 5 passing through the upper fixed plate 1, and the two sides of the upper mold 6 are fixedly provided with The guide rods 7 are interspersed with the support columns 2 respectively. A mold cavity 8 is opened directly below the upper mold 6. Push plates 18 are embedded on both sides of the inner top of the mold cavity 8. The push rod 17 on the top of the push plate 18 runs through the upper mold. 6 and the upper fixed plate 1 are fixedly connected with the limit block 16, and one end of the push rod 17 close to the upper die 6 is fixedly sleeved with a limit ring 19, and the outside of the push rod 17 is provided with a return spring 20, and one end of the return spring 20 is connected to the upper die 6. The bottom end of the fixed plate 1 is fixedly connected, and a lower die 9 is provided directly below the upper die 6 .

Preferably, the support column 2 is a hollow cylindrical stainless steel body, which prolongs the service life of the support column 2 .

Preferably, both sides of the top of the lower fixing plate 3 are fixed with a hydraulic cylinder touch switch 14, and the hydraulic cylinder 4 is electrically connected to an external power supply through the hydraulic cylinder touch switch 14, so that it is easy to control the switch of the hydraulic cylinder 4, which is convenient for operation and easy to use. Safer.

Preferably, an injection tube 15 is embedded at the center of the top of the upper mold 6 , and the injection tube 15 is fixedly connected to the output end of an external liquid storage tank, so that fluid can be easily injected between the upper mold 6 and the lower mold 9 .

Preferably, both sides of the lower mold 9 are fixedly connected with the support column 2 through the connecting plate, the inner side of the lower mold 9 is provided with cold water pipes 10, and the sides of the lower mold 9 convex bodies are equidistantly provided with several closeable Blowing port 11, blowing port 11 is fixedly connected with the air outlet end of air pump 12 through air pipe 13, and air pump 12 is arranged on the bottom of lower mold 9, and is fixedly connected with the top of lower fixed plate 3, pours cold water into in cold water pipe 10, makes injection molding The mold is cooled to achieve the purpose of rapid demoulding. The air pump 12 blows gas into the air pipe 13, and then the gas is blown out through the blowing port 11, which further improves the demoulding efficiency, not only improves the work efficiency, but also improves the product quality.

During specific use, the utility model is an injection mold that is easy to demould. Touch the hydraulic cylinder touch switch 14 with both hands, touch the start switch with both hands, and turn off the switch otherwise, so as to reduce the incidence of accidents and protect the personal safety of workers. Make the hydraulic cylinder 4 work, the hydraulic cylinder 4 drives the upper mold 6 to move up and down along the support column 2 through the hydraulic rod 5, the upper mold 6 and the lower mold 9 are in contact, and then the mold groove 8 and the lower mold 9 are convex through the injection pipe 15 After the mold making is completed, cold water circulates in the cold water pipe 10 to cool down the temperature. Gas is blown into the air pipe 13 through the air pump 12, and then released to the convex body of the lower mold 9 through the air blowing port 11. Between the injection molding workpieces, so as to achieve the purpose of quickly separating the injection molding workpieces from the lower mold 9, the upper mold 6 moves up, driving the push rod 17 to move up accordingly, when the limit ring 19 touches the return spring 20, the upper mold 6 continues to go up Move, the push plate 18 at the bottom end of the push rod 17 pushes the injection molding workpiece, so that the injection molding workpiece and the upper mold 6 are separated quickly, which improves the demoulding efficiency, and then improves the production efficiency, which is more economical.

In the description of the present utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", " The orientation or positional relationship indicated by "top", "inner", "front", "central", "both ends" etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description , rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the utility model.

In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the number of indicated technical features, Thus, a feature defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

In this utility model, unless otherwise clearly specified and limited, terms such as "installation", "setting", "connection", "fixation" and "rotation" should be understood in a broad sense, for example, it may be a fixed connection, It can also be detachable connection, or integrated; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction of two components Unless otherwise clearly defined, those skilled in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (5)

1. An injection mold for easy demoulding, comprising an upper fixing plate (1) and a lower fixing plate (3), characterized in that both sides of the upper fixing plate (1) are connected with the supporting column (2) The lower fixing plate (3) is fixedly connected, and both sides of the top of the upper fixing plate (1) are fixed with a hydraulic cylinder (4), and the hydraulic cylinder (4) passes through the upper fixing plate (1) The hydraulic rod (5) is fixedly connected to the top of the upper die (6), and the guide rods (7) fixedly provided on both sides of the upper die (6) are interspersed with the support column (2) respectively, and the upper die (6) A mold cavity (8) is opened directly below the mold (6), and push plates (18) are embedded on both sides of the inner top of the mold cavity (8), and the push rod (17) at the top of the push plate (18) ) runs through the upper die (6) and the upper fixing plate (1) and is fixedly connected with the limit block (16), and the push rod (17) is fixedly set at one end of the upper die (6) with a limit stop ring (19), the push rod (17) is sheathed with a return spring (20), one end of the return spring (20) is fixedly connected to the bottom end of the upper fixing plate (1), and the upper A lower mold (9) is provided directly below the mold (6). 2. The injection mold for easy demoulding according to claim 1, characterized in that: the support column (2) is a hollow cylindrical stainless steel body. 3. An injection mold for easy demoulding according to claim 1, characterized in that: both sides of the top of the lower fixing plate (3) are fixed with a hydraulic cylinder touch switch (14), and the hydraulic cylinder (4) It is electrically connected to an external power supply through the hydraulic cylinder touch switch (14). 4. An injection mold for easy demoulding according to claim 1, characterized in that: an injection tube (15) is embedded at the center of the top of the upper mold (6), and the injection tube (15) It is fixedly connected with the output end of the external liquid storage tank. 5. An injection mold for easy demoulding according to claim 1, characterized in that: both sides of the lower mold (9) are fixedly connected to the support column (2) through connecting plates, and the lower mold (9) A cold water pipe (10) is laid on the side of the mold (9), and a number of closable blowing ports (11) are equidistantly arranged on the side of the convex body of the lower die (9). The blowing ports (11) The air pipe (13) is fixedly connected to the air outlet end of the air pump (12), and the air pump (12) is arranged directly below the lower mold (9) and fixedly connected to the top end of the lower fixing plate (3).