Plastic mold capable of conveniently ejecting injection-molded part

Abstract

The utility model relates to the technical field of molds, and discloses a plastic mold convenient to eject an injection molded part, which comprises a lower mold, an upper mold is arranged at the top of the lower mold, an electromagnetic valve is fixedly mounted on the outer wall of the lower mold, a fixed column is fixedly mounted on the outer wall of the upper mold, and an insertion column is fixedly mounted at the top of the lower mold. Limiting columns are fixedly mounted on the inner wall of the lower mold, and a sliding plate is slidably connected to the inner wall of the lower mold. A gas conveying pipe is connected with an input port, the gas conveying pipe inputs gas into the lower mold through the input port, so that the gas pressure in the lower mold is increased, a sliding plate is extruded upwards, and then the sliding plate drives a first threaded column and a rotating top disc to move upwards; and the first threaded column is in threaded connection with the threaded sleeve, so that the first threaded column rotates, and the first threaded column drives the rotating top disc at the top to rotate.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a plastic mold that facilitates the ejection of injection molded parts. Background Technology

[0002] Injection molding is a method of shaping industrial products, typically using rubber injection molding and plastic injection molding.

[0003] Currently, after injection molding is completed, the finished product is located inside the lower mold. At the same time, it may stick to the lower mold, making it difficult to remove the finished product due to the adhesion at the bottom. Also, when changing and storing, it is impossible to fix the two molds, resulting in dust accumulating inside after a long period of storage. In addition, there are many molds in storage, which requires time to match the molds. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a plastic mold that facilitates the ejection of injection molded parts, possessing the advantages of ejecting injection molded parts and easy storage, thus solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a plastic mold for easy ejection of injection molded parts, including a lower mold, an upper mold at the top of the lower mold, a solenoid valve fixedly installed on the outer wall of the lower mold, a fixed column fixedly installed on the outer wall of the upper mold, an insertion column fixedly installed on the top of the lower mold, a limit column fixedly installed on the inner wall of the lower mold, a sliding plate slidably connected to the inner wall of the lower mold, a spring provided on the inner wall of the lower mold, an input port fixedly installed at the bottom of the lower mold, a threaded sleeve provided on the inner wall of the lower mold, a threaded column one rotatably connected to the top of the sliding plate, a rotating top plate fixedly installed on the top of the threaded column one, a limit block fixedly installed on the inner wall of the lower mold, a fixed plate slidably connected to the inner wall of the upper mold, a lifting plate fixedly installed on the top of the fixed plate, a connecting plate fixedly installed on the top of the lifting plate, a horizontal plate fixedly installed on the top of the connecting plate, a threaded column two rotatably connected to the inner wall of the upper mold, a fixed sleeve provided on the inner wall of the upper mold, and an extension ring fixedly installed on the outer wall of the fixed sleeve.

[0006] As a preferred technical solution of this utility model: the number of the limiting posts is four, and the four limiting posts are arranged in a matrix array on the inner wall of the lower mold, and the four limiting posts penetrate the four corners of the sliding plate.

[0007] As a preferred technical solution of this utility model: the spring is located at the top of the sliding plate, and the outer wall of the sliding plate is in contact with the inner wall of the lower mold.

[0008] As a preferred technical solution of this utility model: the threaded post is located on the inner wall of the threaded sleeve, and the threaded post and the threaded sleeve are threadedly connected.

[0009] As a preferred technical solution of this utility model: the threaded post 2 penetrates the top of the horizontal plate, and the threaded post 2 and the horizontal plate are connected by threads.

[0010] As a preferred technical solution of this utility model: the number of fixing columns is two, and the two fixing columns are respectively located on the outer walls of the lower mold and the upper mold. The two fixing columns are fitted together, and the fixing columns are adapted to the inner wall of the fixing sleeve.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This plastic mold for easy ejection of injection molded parts, by connecting the air supply pipe to the inlet, the air supply pipe inputs gas into the interior of the lower mold through the inlet, thereby increasing the air pressure inside the lower mold and squeezing the sliding plate upward, which in turn causes the sliding plate to drive the threaded column and the rotating top plate to move upward. Through the upward movement of the sliding plate, the threaded column moves upward, which in turn causes the threaded column to rotate through the threaded connection with the threaded sleeve, thereby causing the threaded column to drive the rotating top plate at the top to rotate.

[0013] 2. This plastic mold that facilitates the ejection of injection molded parts works by fitting the lower mold and the upper mold together. At this time, the fixing posts on the outer walls of the lower mold and the upper mold are also fitted together. Then, the fixing sleeve is fitted onto the outer walls of the two fixing posts, so that the two fixing posts are fixed by the fixing sleeve, thereby fixing the lower mold and the upper mold. Then, by rotating the second threaded post, the second threaded post moves the horizontal plate downward, which in turn moves the connecting plate, the lifting plate and the fixing plate downward, so that the fixing plate fits with the extension ring, thus preventing the extension ring from moving. This completely fixes the lower mold and the upper mold, preventing dust from accumulating inside during long-term storage, and eliminating the need to spend time matching the lower mold and the upper mold. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is an exploded view structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the lower mold of this utility model;

[0017] Figure 4 This is a schematic diagram of the threaded column structure of this utility model;

[0018] Figure 5This is a schematic cross-sectional view of the present invention.

[0019] Figure 6 This utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1. Lower mold; 2. Upper mold; 3. Solenoid valve; 4. Fixed column; 5. Insertion column; 6. Limiting column; 7. Sliding plate; 8. Spring; 9. Input port; 10. Threaded sleeve; 11. Threaded column one; 12. Rotating top plate; 13. Limiting block; 14. Connecting plate; 15. Fixed sleeve; 16. Fixed plate; 17. Lifting plate; 18. Threaded column two; 19. Horizontal plate; 20. Extension ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 - Figure 6 A plastic mold for easy ejection of injection molded parts includes a lower mold 1, an upper mold 2 at the top of the lower mold 1, a solenoid valve 3 fixedly installed on the outer wall of the lower mold 1, a fixing post 4 fixedly installed on the outer wall of the upper mold 2, an insertion post 5 fixedly installed on the top of the lower mold 1, a limit post 6 fixedly installed on the inner wall of the lower mold 1, a sliding plate 7 slidably connected to the inner wall of the lower mold 1, a spring 8 provided on the inner wall of the lower mold 1, an input port 9 fixedly installed at the bottom of the lower mold 1, and a threaded sleeve 10 provided on the inner wall of the lower mold 1. The top of the sliding plate 7 rotates... A threaded column 11 is connected to the upper mold 2. A rotating top plate 12 is fixedly installed on the top of the threaded column 11. A limit block 13 is fixedly installed on the inner wall of the lower mold 1. A fixed plate 16 is slidably connected to the inner wall of the upper mold 2. A lifting plate 17 is fixedly installed on the top of the fixed plate 16. A connecting plate 14 is fixedly installed on the top of the lifting plate 17. A horizontal plate 19 is fixedly installed on the top of the connecting plate 14. A threaded column 28 is rotatably connected to the inner wall of the upper mold 2. A fixed sleeve 15 is provided on the inner wall of the upper mold 2. An extension ring 20 is fixedly installed on the outer wall of the fixed sleeve 15.

[0023] In the above structure, the sliding plate 7 is limited by the limiting block 13, so that when the sliding plate 7 moves downward, it cannot reach the bottom through the limiting block 13, thus preventing the sliding plate 7 from sealing the input port 9 at the bottom of the lower mold 1.

[0024] In a preferred embodiment, the number of limiting posts 6 is four, and the four limiting posts 6 are arranged in a matrix array on the inner wall of the lower mold 1, with the four limiting posts 6 penetrating through the four corners of the sliding plate 7.

[0025] In the above structure, the sliding plate 7 is penetrated by four limiting posts 6, so that the sliding plate 7 can only slide on the outer wall of the four limiting posts 6 when it moves, thereby limiting the sliding plate 7 by the four limiting posts 6, and thus preventing the sliding plate 7 from tilting when it moves.

[0026] In a preferred embodiment, the spring 8 is located at the top of the sliding plate 7, and the outer wall of the sliding plate 7 is in contact with the inner wall of the lower mold 1.

[0027] In the above structure, by connecting the inlet 9 to the gas supply pipe, the gas supply pipe can input gas into the interior of the lower mold 1 through the inlet 9, thereby increasing the gas pressure inside the lower mold 1. At this time, the sliding plate 7 is pressed upward by the gas pressure due to its contact with the inner wall of the lower mold 1, thereby causing the sliding plate 7 to drive the threaded column 11 and the rotating top plate 12 to move upward.

[0028] In a preferred embodiment: the threaded post 11 is located on the inner wall of the threaded sleeve 10, and the threaded post 11 and the threaded sleeve 10 are threadedly connected.

[0029] In the above structure, the upward movement of the sliding plate 7 causes the threaded column 11 to move upward, which in turn causes the threaded column 11 to move and rotate within the inner wall of the threaded sleeve 10 through the threaded connection with the threaded sleeve 10, thereby causing the threaded column 11 to rotate and drive the rotating top plate 12 at the top to rotate.

[0030] In a preferred embodiment, the threaded post 18 penetrates the top of the horizontal plate 19, and the threaded post 18 and the horizontal plate 19 are threadedly connected.

[0031] In the above structure, by rotating the threaded column 18, the threaded column 18 is connected to the horizontal plate 19 by threads, causing the horizontal plate 19 to move up and down, thereby driving the connecting plate 14 and the lifting plate 17 to move. At this time, the lifting plate 17 drives the bottom fixed plate 16 to move, causing the fixed plate 16 to extend and retract.

[0032] In a preferred embodiment, there are two fixing posts 4, and the two fixing posts 4 are located on the outer walls of the lower mold 1 and the upper mold 2 respectively. The two fixing posts 4 are in contact with each other, and the fixing posts 4 are adapted to the inner wall of the fixing sleeve 15.

[0033] In the above structure, by fitting the lower mold 1 and the upper mold 2 together, the fixing posts 4 on the outer walls of the lower mold 1 and the upper mold 2 are fitted together. At this time, the fixing sleeve 15 is fitted onto the outer walls of the two fixing posts 4, so that the two fixing posts 4 are fixed by the fixing sleeve 15, thereby preventing the two fixing posts 4 from detaching from the inner wall of the fixing sleeve 15, thus fixing the lower mold 1 and the upper mold 2.

[0034] Working Principle: When using this equipment, connect the air supply pipe to the inlet 9. Injection molding is then performed through the cooperation of the lower mold 1 and the upper mold 2. After injection molding, the lower mold 1 and upper mold 2 separate, and the finished product is located on the inner wall of the lower mold 1. The air supply pipe then introduces gas into the lower mold 1 through the inlet 9, increasing the air pressure inside the lower mold 1. The sliding plate 7, in contact with the inner wall of the lower mold 1, is compressed upwards by the air pressure, causing the sliding plate 7 to move the threaded column 11 and the rotating top plate 12 upwards. This upward movement of the sliding plate 7 causes the threaded column 11 to move upwards, resulting in the threaded column 11 connecting with the threaded sleeve 10. Simultaneously, the threaded column 11 rotates within the threaded sleeve 10, causing the rotating top plate 12 to rotate. This rotation of the threaded column 11 then causes the finished product to be attached to the rotating top plate 12. The adhesive parts separate, and the sample is pushed out from the inner wall of the lower mold 1 by lifting upwards. When the lower mold 1 and the upper mold 2 need to be stored, the lower mold 1 and the upper mold 2 are fitted together, so that the fixing posts 4 on the outer walls of the lower mold 1 and the upper mold 2 are fitted together. At this time, the fixing sleeve 15 is fitted onto the outer wall of the two fixing posts 4, so that the two fixing posts 4 are fixed by the fixing sleeve 15, and thus the two fixing posts 4 cannot be separated from the inner wall of the fixing sleeve 15, thereby fixing the lower mold 1 and the upper mold 2. At this time, by rotating the threaded post 18, the threaded post 18 drives the horizontal plate 19 to move downward through the threaded connection with the horizontal plate 19, thereby causing the horizontal plate 19 to drive the connecting plate 14, the lifting plate 17 and the fixing plate 16 to move downward, so that the fixing plate 16 fits with the extension ring 20, thereby preventing the extension ring 20 from moving, and completely fixing the lower mold 1 and the upper mold 2 to prevent dust from falling inside during long-term storage, and at the same time, there is no need to spend time matching the lower mold 1 and the upper mold 2.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic mold facilitating ejection of an injection molded part, comprising a lower mold (1), characterized in that: The lower mold (1) has an upper mold (2) at its top. A solenoid valve (3) is fixedly installed on the outer wall of the lower mold (1). A fixing column (4) is fixedly installed on the outer wall of the upper mold (2). An insertion column (5) is fixedly installed on the top of the lower mold (1). A limit column (6) is fixedly installed on the inner wall of the lower mold (1). A sliding plate (7) is slidably connected to the inner wall of the lower mold (1). A spring (8) is provided on the inner wall of the lower mold (1). An input port (9) is fixedly installed at the bottom of the lower mold (1). A threaded sleeve (10) is provided on the inner wall of the lower mold (1). A threaded column (11) is rotatably connected to the top of the sliding plate (7). A rotating top plate (12) is fixedly installed on the top of the threaded column one (11). A limit block (13) is fixedly installed on the inner wall of the lower mold (1). A fixed plate (16) is slidably connected to the inner wall of the upper mold (2). A lifting plate (17) is fixedly installed on the top of the fixed plate (16). A connecting plate (14) is fixedly installed on the top of the lifting plate (17). A horizontal plate (19) is fixedly installed on the top of the connecting plate (14). A threaded column two (18) is rotatably connected to the inner wall of the upper mold (2). A fixed sleeve (15) is provided on the inner wall of the upper mold (2). An extension ring (20) is fixedly installed on the outer wall of the fixed sleeve (15).

2. A plastic mold facilitating ejection of an injection molded part as defined in claim 1, wherein: The number of the limiting posts (6) is four, and the four limiting posts (6) are arranged in a matrix on the inner wall of the lower mold (1). The four limiting posts (6) penetrate the four corners of the sliding plate (7).

3. A plastic mold facilitating the ejection of an injection molded part as defined in claim 1, wherein: The spring (8) is located at the top of the sliding plate (7), and the outer wall of the sliding plate (7) is in contact with the inner wall of the lower mold (1).

4. The plastic mold facilitating ejection of an injection molded part of claim 1, wherein: The threaded post (11) is located on the inner wall of the threaded sleeve (10), and the threaded post (11) and the threaded sleeve (10) are connected by threads.

5. The plastic mold facilitating ejection of an injection molded part of claim 1, wherein: The threaded post 2 (18) passes through the top of the horizontal plate (19), and the threaded post 2 (18) and the horizontal plate (19) are connected by threads.

6. A plastic mold facilitating the ejection of an injection molded part as defined in claim 1, wherein: The number of fixed posts (4) is two, and the two fixed posts (4) are located on the outer walls of the lower mold (1) and the upper mold (2) respectively. The two fixed posts (4) are attached to each other, and the fixed posts (4) are adapted to the inner wall of the fixed sleeve (15).

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