CN222590579U

CN222590579U - Injection mold convenient to drawing of patterns

Info

Publication number: CN222590579U
Application number: CN202420372055.4U
Authority: CN
Inventors: 綦尧喜
Original assignee: Qingdao Jinduo Mould Co ltd
Current assignee: Qingdao Jinduo Mould Co ltd
Priority date: 2024-02-28
Filing date: 2024-02-28
Publication date: 2025-03-11
Anticipated expiration: 2034-02-28

Abstract

The utility model belongs to the technical field of injection molds, in particular to an injection mold convenient to demolding, which comprises a base, wherein a mounting hole is formed in the base, an injection molding pipe is fixedly arranged in the mounting hole, sliding grooves are formed in four corners of the inner side of the base, a sliding rod is slidably arranged in the sliding grooves, a female mold is fixedly connected to the other end of the sliding rod, a first spring is arranged between the female mold and the base and sleeved on the sliding rod, a molding hole is formed in one side surface of the female mold, a sealing block is fixedly arranged on the other side of the female mold, a sliding hole is formed in the sealing block, a sliding block is slidably arranged in the sliding hole, the sliding block is fixedly arranged on the injection molding pipe, a feeding hole is formed in the sliding block and communicated with the injection molding pipe, a movable mold is fixedly arranged in the inner side of a second positioning plate, a male mold is fixedly arranged on one side of the fixing plate through the fixing block, a mold frame is slidably arranged on the other end of the male mold, and demolding is completed in the mold separating process through the setting.

Description

Injection mold convenient to drawing of patterns

Technical Field

The utility model relates to the technical field of injection molds, in particular to an injection mold convenient to demold.

Background

Injection molds can be classified into thermosetting plastic molds and thermoplastic plastic molds according to molding characteristics, and can be classified into transfer molds, blow molds, casting molds, thermoforming molds, hot molds, injection molds, and the like according to molding processes.

The injection mold has a simple working principle that molten plastic is filled into the mold, and the mold is cooled and solidified to finally form a required plastic product. The process has high production efficiency and low cost, and is widely applied to the production of plastic products.

The existing injection mold needs to start the equipment again to perform demolding when injection molding is completed, the working flow is not coherent enough, demolding work cannot be completed when the molds are separated, and the production efficiency of the injection mold is reduced.

Disclosure of utility model

In order to make up for the defects of the prior art, the prior injection mold needs to start equipment again for demolding when injection molding is completed, the working flow is not coherent enough, demolding work cannot be completed when the molds are separated, and the production efficiency of the injection mold is reduced.

The injection mold convenient to demolding comprises a base, support plates are fixedly arranged at two ends of the upper portion of the base, injection holes are formed in the outer side of one support plate, guide rods are arranged at four corners between the support plates, two ends of each guide rod are fixedly connected to the inner side of the support plate, a first positioning plate and a second positioning plate are respectively arranged at two ends of each guide rod, the first positioning plate is fixedly arranged on the inner side of the support plate with the injection holes, a fixed mold is fixedly arranged on the inner side of the first positioning plate, the fixed mold comprises a base, mounting holes are formed in the base, injection pipes are fixedly arranged in the mounting holes, sliding grooves are formed in four corners of the inner side of the base, sliding rods are fixedly arranged in the sliding grooves, the other end of each sliding rod is fixedly connected with a female mold, a first spring is sleeved on the sliding rod, a forming hole is formed in one side surface of the female mold, a sealing block is fixedly arranged on the other side of the female mold, a sliding hole is formed in the sliding block, a sliding block is fixedly arranged in the sliding hole, the sliding block is fixedly arranged on the sliding block, the sliding block is fixedly arranged on the inner side of the sliding block, a mounting hole is fixedly arranged on the sliding block, a die is fixedly arranged on the die seat, a connecting plate is fixedly arranged in the sliding block, the sliding block is fixedly separated from the die seat, and the other side of the die seat is fixedly arranged at the sliding block, and the die seat is fixedly connected with the other side, and the sliding block through the sliding block, and the sliding block.

Preferably, the annular cooling groove is arranged at the other side of the female die, a T-shaped air inlet is arranged on the upper portion of the sealing block, close to the female die, one end of the T-shaped air inlet is communicated with the sliding hole, the other end of the T-shaped air inlet is communicated with the annular cooling groove, an L-shaped air outlet is arranged at the bottom of the sealing block, one end of the L-shaped air outlet is communicated with the annular cooling groove, the air inlet is connected with a refrigerator through a connecting pipe, the die cavity is cooled during injection molding, cooling of the die is accelerated, and cooling of the inside of the female die is performed when the sliding block is separated from the female die, so that cooling time of the die is shortened.

Preferably, a mounting plate is arranged between the die holder and the fixing plate, stepped holes are formed in four corners of one side, far away from the fixing plate, of the fixing block, a limiting rod is slidably arranged in the stepped holes, a second spring is sleeved on the limiting rod in a sliding manner in the stepped holes, one end of the limiting rod penetrates through the fixing block, the other end of the limiting rod is slidably arranged on the fixing plate and penetrates through the fixing plate to be fixedly connected to the mounting plate, the die frame is fixedly arranged on the limiting rod, the limiting rod penetrates through the die frame, and the die frame is driven to separate a male die from an injection-molded product after injection molding through the second spring.

Preferably, the fixed plate and the center of the male die are provided with sliding holes, the sliding holes are communicated, the ejector pins are slidably arranged in the sliding holes, two ends of each ejector pin penetrate through the fixed plate and the male die respectively, one end of each ejector pin is fixedly arranged on the mounting plate, and the ejector pins are matched with the die frame to demould injection products so as to ensure the integrity of the products.

Preferably, limit grooves are formed in four corners of one side, opposite to the male die, of the female die, the positions of the limit grooves correspond to the limit rods, and the die assembly precision is ensured through the cooperation of the limit rods and the limit grooves.

Preferably, a hydraulic cylinder is fixedly arranged on the outer side of the support plate on one side of the male die, the front end of a piston rod of the hydraulic cylinder is fixedly connected to the second positioning plate, and the hydraulic cylinder is used for rapidly carrying out die assembly and die separation.

The utility model has the advantages that:

1. According to the utility model, when the injection mold is used, after the injection molding machine is used for injection molding of the mold after mold closing, the hydraulic cylinder is started to drive the movable mold to move towards the other end of the base, the movable mold is pulled by the die holder to move backwards by the second positioning plate, at the moment, the first spring and the second spring start stretching, the first spring pushes the female mold and the sealing block to be far away from the base, meanwhile, one end of the sliding block slides in the sealing block, so that air holes communicated in the sealing block are exposed, the outer surface of a cold air blowing product is used for demolding the product and the female mold, the second spring pushes the limiting rod to drive the die frame to be far away from the fixed plate, meanwhile, the mounting plate is used for pushing the ejector pin to be internally used for demolding the product and the male mold, and the product falls down after the movable mold and the fixed mold are separated, so that the demolding is completed.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic side view of an injection mold;

FIG. 2 is a schematic top view of an injection mold;

FIG. 3 is a schematic diagram of a sectional structure of a stationary mold;

FIG. 4 is a schematic diagram of a moving die stripping device;

fig. 5 is a schematic diagram of a sectional structure of a movable mold.

In the figure, 1, a base; 2, a supporting plate, 3, a guide rod, 4, a first positioning plate, 5, a base, 6, a female die, 7, a slide bar, 8, a first spring, 9, an injection molding pipe, 10, a slide block, 11, a sealing block, 12, a second positioning plate, 13, a die holder, 14, a connecting plate, 15, a fixing plate, 16, a fixing block, 17, a male die, 18, a thimble, 19, a mounting plate, 20, a limiting rod, 21, a die frame, 22, a second spring, 23 and a hydraulic cylinder.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 5, an injection mold for facilitating demolding includes a base 1; the injection molding die comprises a base 1, wherein support plates 2 are fixedly mounted at two ends of the upper part of the base 1, injection molding holes are formed in the outer side of one support plate 2, guide rods 3 are arranged at four corners among the support plates 2, two ends of each guide rod 3 are fixedly connected to the inner side of the support plate 2, a first positioning plate 4 and a second positioning plate 12 are respectively arranged at two ends of each guide rod 3, the first positioning plate 4 is fixedly mounted on the inner side of the support plate 2 with the injection molding holes, a fixed die is fixedly mounted on the inner side of the first positioning plate 4, the fixed die comprises a base 5, mounting holes are formed in the base 5, an injection molding pipe 9 is fixedly mounted in the mounting holes, sliding grooves are formed in four corners in the inner side of the base 5, sliding rods 7 are slidably mounted on sliding rods, a female die 6 is fixedly connected to the other ends of the sliding rods 7, a first spring 8 is sleeved on the sliding rods 7, a forming hole is formed in one side surface of the female die 6, a sealing block 11 is fixedly mounted on the other side of the female die 6, a sliding hole 10 is formed in the sliding block 11, a sliding block 10 is fixedly mounted in the sliding hole, a sliding block 10 is fixedly mounted on the inner side of the sliding block 10, two sides of the sliding block 9 are fixedly mounted on the die seat 15, two sides of the sliding block 15 are fixedly mounted on the sliding block 9, and the other side of the sliding block 15 are fixedly mounted on the die seat 15, and the other side of the sliding block 15 is fixedly mounted on the sliding block 13 and the other side is fixedly mounted on one side of the die seat 15, and fixed plate 13 and the other side is fixedly mounted on the side and 13 and is fixedly mounted on the other side and 13 side and is fixedly mounted on the side and 13 and is fixedly mounted side and 13 and is fixedly connected and 13; when in work, the existing injection mold needs to start the equipment again to carry out demolding when injection molding is completed, the working flow is not consistent, the demolding operation cannot be completed when the molds are separated, the production efficiency of the injection mold is reduced, when the injection mold is used, after the injection molding machine is used for injection molding of the molds after mold closing, the hydraulic cylinder 23 is started to pull the second positioning plate 12 to move towards the other end of the base 1, the second positioning plate 12 pulls the movable mold to move backwards through the mold holder 13, at the moment, the first spring 8 and the second spring 22 start to stretch, the first spring 8 pushes the female mold 6 and the sealing block 11 to be far away from the base 5, meanwhile, one end of the sliding block 10 slides in the sealing block 11, air holes communicated inside the sealing block 11 are exposed, the outer surface of a product is blown to demold the product and the female mold 6, the second spring 22 pushes the limiting rod 20 to drive the mold frame 21 to be far away from the fixed plate 15, meanwhile, the ejector pins 18 are pushed by the mounting plate 19 to release the product and the male mold 17, and after the movable mold and the fixed mold are separated, the product falls down.

When the injection mold is used, when the mold is in a mold closing state, the air inlet end of the T-shaped air inlet is connected to a refrigerator, cold air enters the annular cooling groove of the female mold 6 to cool and accelerate the molding of the mold in the mold cavity, then the cold air is discharged through the L-shaped air outlet, the other end of the T-shaped air inlet is exposed by the sliding block 10 when the mold is separated, and part of cold air enters the female mold 6 to cool and clean the inner wall of the female mold 6.

The die holder 13 and the fixed plate 15 are provided with a mounting plate 19 therebetween, four corners of one side of the fixed block 16 far away from the fixed plate 15 are provided with stepped holes, a limiting rod 20 is slidably arranged in each stepped hole, a second spring 22 is slidably arranged in each stepped hole and sleeved on each limiting rod 20, one end of each limiting rod 20 penetrates through the fixed block 16, the other end of each limiting rod 20 is slidably arranged on the fixed plate 15 and fixedly connected with the mounting plate 19 through the fixed plate 15, the die frame 21 is fixedly provided with the limiting rod 20, the limiting rod 20 penetrates through the die frame 21, during operation, when the injection die is used, a movable die and a fixed die are separated after a product is molded, the movable die moves backwards, the second spring 22 pushes the limiting rod 20 to move the die frame 21 to push a product on the male die 17 to the female die 6, the product is separated from the male die 17, and meanwhile the limiting rod 20 drives the mounting plate 19 to move away from the die holder 13 to the fixed plate 15.

When the injection mold is used, the mounting plate 19 drives the ejector pins 18 to move in the male mold 17 to the female mold 6 under the action of the second spring 22 to push the product on the male mold 17 to push the male mold 17.

When the injection mold is used in operation, the front end of the limit rod 20 slides into the limit groove on the female mold 6 when the mold is closed, and meanwhile, the male mold 17 moves the female mold 6 to form an injection molding cavity.

The outer side of the supporting plate 2 at one side of the male die 17 is fixedly provided with a hydraulic cylinder 23, the front end of a piston rod of the hydraulic cylinder 23 is fixedly connected to the second positioning plate 12, and when the injection mold is used in working, the hydraulic cylinder 23 is started to drive the second positioning plate 12 to slide on the guide rod 3, and the second positioning plate 12 drives the movable mold to move.

According to the working principle, when the injection mold is used, after the injection molding machine is used for injection molding of the mold after mold closing, the hydraulic cylinder 23 is started to pull the second positioning plate 12 to drive the movable mold to move towards the other end of the base 1, the second positioning plate 12 pulls the movable mold to move backwards through the mold holder 13, at the moment, the first spring 8 and the second spring 22 start to stretch, the first spring 8 pushes the female mold 6 and the sealing block 11 to be far away from the base 5, meanwhile, one end of the sliding block 10 slides in the sealing block 11, so that air holes communicated in the sealing block 11 are exposed, cold air blows the outer surface of a product to demold the product and the female mold 6, the second spring 22 pushes the limiting rod 20 to drive the mold frame 21 to be far away from the fixed plate 15, meanwhile, the ejector pin 18 is pushed by the mounting plate 19 to demold the product and the male mold 17, and the product falls after the movable mold and the fixed mold are separated, and the demolding is completed.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, 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 present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. 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 has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. The injection mold convenient for demolding is characterized by comprising a base (1), wherein two ends of the upper part of the base (1) are fixedly provided with support plates (2), one of the support plates (2) is provided with injection holes at the outer side, four corners between the support plates (2) are respectively provided with guide rods (3), two ends of each guide rod (3) are fixedly connected to the inner side of the support plate (2), two ends of each guide rod (3) are respectively provided with a first positioning plate (4) and a second positioning plate (12), the first positioning plates (4) are fixedly arranged at the inner side of the support plate (2) provided with the injection holes, the inner side of the first positioning plates (4) is fixedly provided with a fixed die, the fixed die comprises a base (5), the base (5) is internally provided with a mounting hole, the mounting hole is internally provided with an injection tube (9), the inner side four corners of the base (5) are respectively provided with a sliding groove, the other end of each sliding rod (7) is fixedly connected with a female die (6), a first spring (8) is arranged between the female die (6) and the base (5) and is sleeved with a sliding block (6), one side of the sliding block (6) is provided with a sliding block (11) and the sliding block (11) is provided with a sealing block (11), the utility model discloses a mould, including slider (10), fixed plate (15) are installed at both ends, fixed plate (15) one side has terrace die (17) through fixed block (16) fixed mounting, terrace die (17) other end slip is provided with mould frame (21), slider (10) fixed mounting is on injection molding pipe (9), and set up feed port and injection molding pipe (9) intercommunication in slider (10), no. two locating plate (12) inboard fixed mounting has the movable mould, the movable mould includes die holder (13), equal fixedly connected with connecting plate (14) in die holder (13) both sides, connecting plate (14) both ends fixed mounting has fixed plate (15).

2. The injection mold convenient to demolding is characterized in that an annular cooling groove is formed in the other side of the female mold (6), a T-shaped air inlet hole is formed in the upper portion of the sealing block (11) close to the female mold (6), one end of the T-shaped air inlet hole is communicated with the sliding hole, the other end of the T-shaped air inlet hole is communicated with the annular cooling groove, an L-shaped air outlet hole is formed in the bottom of the sealing block (11), and one end of the L-shaped air outlet hole is communicated with the annular cooling groove.

3. The injection mold convenient to demolding according to claim 1, wherein a mounting plate (19) is arranged between the mold base (13) and the fixing plate (15), stepped holes are formed in four corners of one side, far away from the fixing plate (15), of the fixing block (16), a limiting rod (20) is slidably arranged in the stepped holes, a second spring (22) is slidably arranged in the stepped holes and sleeved on the limiting rod (20), one end of the limiting rod (20) penetrates through the fixing block (16), the other end of the limiting rod is slidably arranged on the fixing plate (15) and fixedly connected to the mounting plate (19) in a penetrating manner, the limiting rod (20) is fixedly arranged on the mold frame (21), and the limiting rod (20) penetrates through the mold frame (21).

4. The injection mold convenient to demolding according to claim 1, wherein sliding holes are formed in the centers of the fixing plate (15) and the male mold (17) and are communicated, ejector pins (18) are slidably arranged in the sliding holes, two ends of each ejector pin (18) penetrate through the fixing plate (15) and the male mold (17) respectively, and one end of each ejector pin (18) is fixedly arranged on the mounting plate (19).

5. The injection mold convenient to demolding according to claim 1, wherein limit grooves are formed in four corners of one side, opposite to the male mold (17), of the female mold (6), and the limit grooves correspond to limit rods (20).

6. The injection mold convenient to demolding according to claim 1, wherein a hydraulic cylinder (23) is fixedly arranged on the outer side of a supporting plate (2) on one side of the male mold (17), and the front end of a piston rod of the hydraulic cylinder (23) is fixedly connected to a second positioning plate (12).