Plastic handle forming mold convenient to demold

Abstract

The utility model relates to the technical field of injection molds, in particular to a plastic handle forming mold convenient to demold, and adopts the technical scheme that the plastic handle forming mold comprises a base, a shaping mold is arranged on the upper end surface of the base, a demolding mechanism is movably mounted above the shaping mold, the base comprises an operation table, a reserved groove is formed in the middle of the operation table, and a demolding mechanism is movably mounted in the reserved groove. Holes are formed in the positions, on the two sides of the reserved groove, of the operation table correspondingly, and limiting sleeves are embedded in the holes. The shaping mold comprises a fixed mold and a movable mold, the fixed mold is fixedly mounted on the upper end face of the operation table at the rear end of the preformed groove, and the movable mold is slidably mounted on the upper end face of the operation table at the front end of the preformed groove; the demolding mechanism comprises a movable frame, the two ends of the bottom of the movable frame are movably inserted into the limiting sleeves correspondingly, the movable frame is located over the reserved groove, and a rubber strip is fixedly installed on the inner side of the movable frame. According to the utility model, the problem that the finished product is difficult to take out smoothly during demolding due to the fact that the finished product is adhered to the fixed part or the movable part of the mold is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a plastic handle molding mold which is convenient for demoulding. Background Art

[0002] Injection molding is a manufacturing process primarily used to produce products made of plastic or rubber. It involves injecting molten plastic or rubber into a mold under pressure, followed by cooling to form the product. Injection molding can be categorized into two main methods: compression molding and die casting. Compression molding involves injecting the material into a mold, where pressure is applied to form and solidify it. Die casting, on the other hand, involves injecting molten material into a mold under high pressure and rapidly cooling it to achieve precise details and a smooth surface. This is evident in the production of plastic handles, which are often molded using injection molding.

[0003] Currently, during the injection molding process, the finished product sometimes adheres to the fixed or movable parts of the mold, which makes it difficult to remove the finished product smoothly during demolding. To solve this problem, it is necessary to design a plastic handle molding mold that is easy to demold. Utility Model Content

[0004] The purpose of the utility model is to provide a plastic handle molding mold that is easy to demold, which has the advantage of ensuring that the finished product can be easily separated from the mold during demolding, and solves the problem that the finished product sometimes adheres to the fixed part or the movable part of the mold, which will make it difficult to smoothly remove the finished product during demolding.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a plastic handle molding mold that is convenient for demolding, comprising a base, a shaping mold provided on the upper end surface of the base, a demolding mechanism movably installed above the shaping mold, the base comprising an operating table, a reserved groove provided in the middle of the operating table, holes respectively provided on the operating table on both sides of the reserved groove and embedded with limiting sleeves;

[0006] The shaping mold includes a fixed mold and a movable mold, the fixed mold is fixedly mounted on the end surface of the operating table at the rear end of the reserved groove, and the movable mold is slidably mounted on the end surface of the operating table at the front end of the reserved groove;

[0007] The demoulding mechanism includes a movable frame, both ends of the bottom of the movable frame are movably inserted into the limiting sleeve, the movable frame is located just above the reserved groove, and a rubber strip is fixedly installed on the inner side of the movable frame.

[0008] Preferably, support frames are fixedly installed at the four corners of the lower end surface of the operating table, and anti-slip pads are fixedly installed at the bottom of the support frames, and the bottom height of the support frames is lower than the bottom height of the limiting sleeve. In the design, support frames are fixedly installed at the four corners of the lower end surface of the operating table, and anti-slip pads are fixedly installed at the bottom of these support frames. Such a design ensures the stability of the mold during operation and prevents accidents caused by sliding of the operating table. The bottom height of the support frame is designed to be lower than the bottom height of the limiting sleeve. This detail consideration helps to keep the overall structure of the mold compact, while providing operators with sufficient space for operation, thereby improving the practicality and safety of the mold.

[0009] Preferably, the fixed mold and movable mold are arranged in mirror images on the end faces of the operating table, and the fixed mold and movable mold are matched in size. Shaping grooves are provided on opposite sides of the fixed mold and movable mold, and injection holes are provided on the tops of the two shaping grooves on opposite sides. Cooling cavities are provided on the sides facing away from the fixed mold and movable mold, and positioning rods are fixedly installed on both sides of the top of the fixed mold near the movable mold. In the design, the fixed mold and movable mold are arranged in mirror images on the end faces of the operating table, ensuring the symmetry and consistency of the mold. The matching sizes of the two ensure the accuracy and quality of the finished product. Shaping grooves are provided on opposite sides of the fixed mold and movable mold, and injection holes are provided on the tops of the two shaping grooves on opposite sides. This design allows the molten material to be evenly injected into the mold, ensuring the shape and details of the finished product. Cooling cavities are provided on the sides facing away from the fixed mold and movable mold, which helps to quickly and evenly cool the finished product and improve production efficiency. Positioning rods are fixedly installed on both sides of the top of the fixed mold near the movable mold to ensure the precise alignment of the mold.

[0010] Preferably, a manual push rod is fixedly installed on the upper end surface of the operating table on the side of the movable mold facing away from the fixed mold, one end of the manual push rod is fixedly connected to the movable mold, and a self-locking mechanism is provided on the manual push rod. Through holes that match the positioning rod are respectively provided on both sides of the top of the movable mold close to the fixed mold. In the design, a manual push rod is fixedly installed on the upper end surface of the operating table on the side of the movable mold facing away from the fixed mold, and one end of the manual push rod is fixedly connected to the movable mold. This design allows the operator to easily pull the movable mold and the fixed mold apart through the manual push rod to achieve demolding. The manual push rod is provided with a self-locking mechanism to ensure the sealing of the movable mold and the fixed mold when they are closed during the injection molding process. Through holes that match the positioning rod are respectively provided on both sides of the top of the movable mold close to the fixed mold, which helps to ensure the precise positioning of the movable mold and the fixed mold when they are closed.

[0011] Preferably, a connecting spring is provided on the movable frame above the limiting sleeve, with the top of the connecting spring elastically connected to the movable frame and the bottom of the connecting spring elastically connected to the top of the limiting sleeve. The connecting spring is designed to be made of a compression spring material. In this design, a connecting spring is provided on the movable frame above the limiting sleeve, with the top of the connecting spring elastically connected to the movable frame and the bottom of the connecting spring elastically connected to the top of the limiting sleeve. This design allows the movable frame to move up and down flexibly during the demolding process while maintaining stability. The connecting spring is designed to be made of a compression spring material, which not only provides the necessary elasticity but also ensures long-term durability and reliability.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] The molding die in this utility model consists of a fixed die and a movable die, which are fixedly and slidably mounted on the upper end surface of the operating table, respectively. This design allows the mold to close tightly during the injection molding process, ensuring that the plastic material evenly fills the molding groove. Cooling cavities are provided on the side facing away from the fixed die and movable die, which helps to quickly and evenly cool the plastic handle, allowing it to solidify quickly and reducing adhesion between the finished product and the mold. The demolding mechanism includes a movable frame and rubber strips. The bottom ends of the movable frame are movably inserted into limit sleeves, allowing for flexible movement. This design allows the movable frame to move downward during demolding without being restricted by a fixed structure. A rubber strip is fixedly mounted on the inside of the movable frame. When the movable frame is pressed downward, the rubber strip contacts the plastic handle. The elasticity and friction of the rubber strip help to disengage the plastic handle from the molding groove in the fixed die or movable die, thereby achieving demolding. Limit sleeves are embedded on both sides of the reserved groove in the center of the operating table. These sleeves limit the range of movement of the movable frame, ensuring stability and precision during the demolding process. Through these designs, after injection molding is complete, the movable mold can be manually separated from the fixed mold by pulling it apart with a push rod. The plastic handle can then be easily released from the mold using the combination of a movable frame and rubber strips. This design reduces adhesion between the finished product and the mold, improving demolding efficiency and the quality of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the base structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the shaping mold structure of the present utility model;

[0017] Figure 4 This is a schematic structural diagram of the demoulding mechanism of the present invention.

[0018] In the figure: 1. Base; 11. Operating table; 12. Support frame; 13. Limit sleeve; 14. Manual push rod; 15. Reserved groove; 2. Shaping mold; 21. Fixed mold; 22. Movable mold; 201. Injection hole; 202. Shaping groove; 203. Cooling cavity; 204. Positioning rod; 3. Demolding mechanism; 31. Movable frame; 32. Connecting spring; 33. Rubber strip. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example

[0021] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the utility model provides an embodiment: a plastic handle molding mold with convenient demolding, comprising a base 1, a shaping mold 2 is provided on the upper end surface of the base 1, a demolding mechanism 3 is movably installed above the shaping mold 2, the base 1 comprises an operating table 11, a reserved groove 15 is opened in the middle of the operating table 11, and a limited sleeve 13 is respectively opened on the operating table 11 on both sides of the reserved groove 15 and embedded therein;

[0022] The shaping mold 2 includes a fixed mold 21 and a movable mold 22. The fixed mold 21 is fixedly mounted on the upper end surface of the operating table 11 at the rear end of the reserved groove 15, and the movable mold 22 is slidably mounted on the upper end surface of the operating table 11 at the front end of the reserved groove 15.

[0023] The demoulding mechanism 3 includes a movable frame 31 . Both ends of the bottom of the movable frame 31 are movably inserted into the limiting sleeve 13 . The movable frame 31 is located directly above the reserved groove 15 . A rubber strip 33 is fixedly installed on the inner side of the movable frame 31 .

[0024] Specifically, the molding die 2 consists of a fixed die 21 and a movable die 22, which are fixedly and slidably mounted on the upper end surface of the operating table 11, respectively. This design allows the mold to close tightly during the injection molding process, ensuring that the plastic material evenly fills the molding groove 202. A cooling cavity 203 is provided on the side facing away from the fixed die 21 and the movable die 22. This helps to quickly and evenly cool the plastic handle, allowing it to solidify quickly and reducing adhesion between the finished product and the mold. The demolding mechanism includes a movable frame 31 and a rubber strip 33. The bottom ends of the movable frame 31 are movably inserted into the limiting sleeve 13, allowing for flexible movement. This design allows the movable frame 31 to move downward during demolding without being restricted by a fixed structure. The rubber strip 33 is fixedly mounted on the inside of the movable frame 31. When the movable frame 31 is pressed downward, the rubber strip 33 contacts the plastic handle. The elasticity and friction of the rubber strip 33 help to disengage the plastic handle from the molding groove 202 in the fixed die 21 or movable die 22, thereby achieving demolding. The reserved slot 15 in the center of the operating table 11 is flanked by limit sleeves 13. These sleeves restrict the range of motion of the movable frame 31, ensuring stability and precision during demolding. Thanks to these designs, after injection molding is complete, the movable mold 22 can be separated from the fixed mold 21 by manually pulling the push rod 14. The movable frame 31 and rubber strip 33 then allow the plastic handle to be easily removed from the mold. This design reduces adhesion between the finished product and the mold, improving demolding efficiency and quality.

[0025] Furthermore, support frames 12 are fixedly installed at the four corners of the lower end surface of the operating table 11, and anti-slip pads are fixedly installed at the bottom of the support frames 12. The bottom height of the support frames 12 is lower than the bottom height of the limiting sleeve 13. In the design, support frames 12 are fixedly installed at the four corners of the lower end surface of the operating table 11, and anti-slip pads are fixedly installed at the bottom of these support frames 12. Such a design ensures the stability of the mold during operation and prevents accidents caused by sliding of the operating table 11. The bottom height of the support frame 12 is designed to be lower than the bottom height of the limiting sleeve 13. This detail consideration helps to keep the overall structure of the mold compact, while providing operators with sufficient space for operation, thereby improving the practicality and safety of the mold.

[0026] Furthermore, the fixed mold 21 and the movable mold 22 are arranged in a mirror image on the upper end surface of the operating table 11. The fixed mold 21 and the movable mold 22 are matched in size. A shaping groove 202 is provided on the opposite side of the fixed mold 21 and the movable mold 22. An injection hole 201 is provided at the top of the opposite side of the two shaping grooves 202. A cooling cavity 203 is provided on the side facing away from the fixed mold 21 and the movable mold 22. Positioning rods 204 are fixedly installed on both sides of the top of the fixed mold 21 close to the movable mold 22. In the design, the fixed mold 21 and the movable mold 22 are arranged in a mirror image on the upper end surface of the operating table 11, ensuring the symmetry and consistency of the mold. The matching size of the two ensures the accuracy and quality of the finished product. A shaping groove 202 is provided on the opposite side of the fixed mold 21 and the movable mold 22. An injection hole 201 is provided at the top of the opposite side of the two shaping grooves 202. This design allows the molten material to be evenly injected into the mold, ensuring the shape and details of the finished product. The fixed mold 21 and the movable mold 22 are both provided with cooling cavities 203 on the side facing away from each other, which helps to quickly and evenly cool the finished product and improve production efficiency. Positioning rods 204 are fixedly installed on both sides of the top of the fixed mold 21 near the movable mold 22 to ensure precise alignment of the molds.

[0027] Furthermore, a manual push rod 14 is fixedly mounted on the upper end surface of the operating table 11 on the side of the movable mold 22 facing away from the fixed mold 21. One end of the manual push rod 14 is fixedly connected to the movable mold 22 and is equipped with a self-locking mechanism. Through holes that mate with positioning rods 204 are respectively provided on both sides of the top of the movable mold 22 on the side closest to the fixed mold 21. In the design, a manual push rod 14 is fixedly mounted on the upper end surface of the operating table 11 on the side of the movable mold 22 facing away from the fixed mold 21. One end of the manual push rod 14 is fixedly connected to the movable mold 22. This design allows the operator to easily pull the movable mold 22 and the fixed mold 21 apart using the manual push rod 14 to achieve demolding. The self-locking mechanism on the manual push rod 14 ensures a tight seal when the movable mold 22 and the fixed mold 21 are closed during the injection molding process. Through holes that mate with positioning rods 204 are respectively provided on both sides of the top of the movable mold 22 on the side closest to the fixed mold 21, which helps ensure the precise positioning of the movable mold 22 and the fixed mold 21 during closing.

[0028] Furthermore, a connecting spring 32 is provided on the movable frame 31 above the limiting sleeve 13. The top of the connecting spring 32 is elastically connected to the movable frame 31, and the bottom of the connecting spring 32 is elastically connected to the top of the limiting sleeve 13. The connecting spring 32 is designed to be made of a compression spring material. In the design, a connecting spring 32 is provided on the movable frame 31 above the limiting sleeve 13. The top of the connecting spring 32 is elastically connected to the movable frame 31, and the bottom of the connecting spring 32 is elastically connected to the top of the limiting sleeve 13. This design allows the movable frame 31 to move up and down flexibly during the demolding process while maintaining stability. The connecting spring 32 is designed to be made of a compression spring material, which not only provides the necessary elasticity but also ensures long-term durability and reliability.

[0029] When the present invention is used, the molten plastic material is injected through the injection hole 201 into the shaping groove 202 between the closed fixed mold 21 and the movable mold 22. After the injection molding is completed, the plastic material is cooled and solidified in the mold to form the shape of the plastic handle. The plastic is cooled in the shaping groove 202 between the fixed mold 21 and the movable mold 22. Due to the provision of the cooling cavity 203, the wall thickness of the shaping groove 202 is thinner, thereby increasing the cooling speed. It is confirmed that the plastic handle has been completely cooled and solidified to avoid damage to the finished product during the demoulding process. The manual push rod 14 is operated. The manual push rod 14 is fixed to the side of the movable mold 22 away from the fixed mold 21. The movable mold 22 slides along the upper end surface of the operating table 11 toward the side away from the fixed mold 21 by pulling the manual push rod 14. The fixed mold 21 is separated from the movable mold 22, and the movable frame 31 is located just above the reserved groove 15. The two ends of its bottom are movably inserted in the limit sleeve 13. The movable frame 31 is pressed to move downward. Since a rubber strip 33 is fixedly installed on the inner side of the movable frame 31, when the movable frame 31 is pressed down, the rubber strip 33 contacts the plastic handle. The elasticity and friction of the rubber strip 33 are used to separate the plastic handle from the shaping groove 202 inside the fixed mold 21 or the movable mold 22. Once the plastic handle is successfully separated from the fixed mold 21 by the rubber strip 33, it can fall through the reserved groove 15, and then the operator can take out the handle. After each demolding, check the status of the mold 2 to be shaped and the rubber strip 33, and perform necessary cleaning and maintenance to ensure the service life of the mold and the quality of the finished product.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A plastic handle molding mold that is easy to demould, comprising a base (1), a shaping mold (2) provided on the upper end surface of the base (1), and a demoulding mechanism (3) movably installed above the shaping mold (2), characterized in that: The base (1) includes an operating table (11), a reserved groove (15) is provided in the middle of the operating table (11), and holes are respectively opened on the operating table (11) on both sides of the reserved groove (15) and limited sleeves (13) are embedded and installed; The shaping mold (2) comprises a fixed mold (21) and a movable mold (22), wherein the fixed mold (21) is fixedly mounted on the upper end surface of the operating table (11) at the rear end of the reserved groove (15), and the movable mold (22) is slidably mounted on the upper end surface of the operating table (11) at the front end of the reserved groove (15); The demoulding mechanism (3) comprises a movable frame (31), the bottom ends of the movable frame (31) are movably inserted into the limiting sleeve (13), the movable frame (31) is located directly above the reserved groove (15), and a rubber strip (33) is fixedly installed on the inner side of the movable frame (31).

2. A plastic handle molding mold with easy demoulding according to claim 1, characterized in that: Support frames (12) are fixedly mounted at the four corners of the lower end surface of the operating table (11), and a non-slip pad is fixedly mounted at the bottom of the support frame (12). The bottom height of the support frame (12) is lower than the bottom height of the limiting sleeve (13).

3. The easy-to-demold plastic handle molding mold according to claim 1, characterized in that: The fixed mold (21) and the movable mold (22) are mirror-imaged on the upper end surface of the operating table (11); the fixed mold (21) and the movable mold (22) are matched in size; a shaping groove (202) is provided on the opposite side of the fixed mold (21) and the movable mold (22); a material injection hole (201) is provided on the top of the opposite side of the two shaping grooves (202); a cooling cavity (203) is provided on the opposite side of the fixed mold (21) and the movable mold (22); and positioning rods (204) are fixedly installed on both sides of the top of the side of the fixed mold (21) close to the movable mold (22).

4. The easy-to-demold plastic handle molding mold according to claim 1, characterized in that: A manual push rod (14) is fixedly mounted on the upper end surface of the operating table (11) on the side of the movable mold (22) facing away from the fixed mold (21). One end of the manual push rod (14) is fixedly connected to the movable mold (22). A self-locking mechanism is provided on the manual push rod (14). Through holes matching the positioning rods (204) are respectively provided on both sides of the top of the side of the movable mold (22) close to the fixed mold (21).

5. The easy-to-demold plastic handle molding mold according to claim 1, characterized in that: A connecting spring (32) is provided on the movable frame (31) above the limiting sleeve (13), the top of the connecting spring (32) is elastically connected to the movable frame (31), and the bottom of the connecting spring (32) is elastically connected to the top of the limiting sleeve (13), and the connecting spring (32) is designed with a compression spring material.

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