An injection molding mold

CN224334940UActive Publication Date: 2026-06-09CHONGQING GRINDERS PLASTIC CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING GRINDERS PLASTIC CO LTD
Filing Date
2025-07-10
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The existing injection molding molds do not have an ejector mechanism, which makes it cumbersome to remove the molded parts, inconvenient to use, and affects work efficiency.

Method used

An auxiliary mechanism was designed, comprising a support platform, a lower mold body, an upper mold body, a sliding plate, a limiting block, a moving block, a limiting rod, a spring, a limiting platform, and a contact plate. An external driving component drives the upper mold to move downward and cooperate with the lower mold to form a closed processing cavity. After cooling and molding, the spring pushes the sliding plate to slide upward, enabling convenient removal of the molded part.

Benefits of technology

It improves demolding efficiency, simplifies the removal process of molded parts, reduces operational difficulty, and enhances the ease of use of the mold.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224334940U_ABST
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Abstract

This utility model relates to the field of mold technology, specifically to an injection molding mold; it includes a base and an auxiliary mechanism. The auxiliary mechanism includes a support platform, a lower mold body, an upper mold body, a sliding plate, a limiting block, a moving block, a limiting rod, a spring, a limiting platform, and a stop plate. After the product is injection molded, when the upper mold body moves upward and separates from the lower mold body, the spring is released and pushes the sliding plate upward, causing the molded part in the molding cavity to move upward, so that the molded part can be removed. There is no need to manually remove the molded part from the molding cavity by hammering or other means, making the operation more convenient and the use more convenient. This improves the demolding efficiency of the injection mold and solves the problem that the existing mold structure does not have an ejector mechanism, making it inconvenient to remove the molded part, and the operation is more cumbersome and inconvenient to use.
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Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to an injection molding mold. Background Technology

[0002] The existing structural design of injection molding equipment still results in low working efficiency during the injection molding process. This not only increases the workload of the equipment and affects its service life, but also easily damages the quality of the injection molded products. Furthermore, it cannot adjust the specifications of the injection molded products to a certain extent, resulting in poor applicability and unsatisfactory performance.

[0003] A search revealed that prior art CN214214542U discloses an automatic injection molding die, including an injection molding machine, a turntable, an upper injection mold, and a lower injection mold. An injection driving device is mounted on the top of the injection molding machine; a fixed support is fixedly installed below the injection driving device, which includes an injection driving motor; and a cooling fan is fixedly installed in the middle of the upper surface of the turntable. This automatic injection molding die, during the injection process, allows for convenient and quick rotation and replacement of the lower injection mold by setting the turntable below the upper injection mold, improving the working efficiency of the injection molding machine. Furthermore, the cooling fan in the middle of the turntable cools the product after injection, avoiding adverse effects on the heating equipment during the heating process and increasing the practicality of the injection molding machine.

[0004] However, the above-mentioned mold has the following problems when in use: the existing mold structure does not have an ejector mechanism, making it inconvenient to remove the molded parts, and the operation is relatively cumbersome and inconvenient to use. Utility Model Content

[0005] The purpose of this utility model is to provide an injection molding mold that solves the problems of existing mold structures lacking an ejector mechanism, making it difficult to remove the molded parts, and resulting in cumbersome operation and inconvenience.

[0006] To achieve the above objectives, this utility model provides an injection molding mold, including a base and an auxiliary mechanism;

[0007] The auxiliary mechanism includes a support platform, a lower mold body, an upper mold body, a sliding plate, a limiting block, a moving block, a limiting rod, a spring, a limiting platform, and a contact plate. The support platform is detachably mounted on the base. The lower mold body is detachably mounted on the support platform and has a molding cavity. The bottom of the upper mold body has a molding part that mates with the molding cavity and is located on the upper side of the lower mold body. It also has an injection port. The sliding plate is slidably mounted in the molding cavity. The limiting block is detachably mounted on the bottom of the sliding plate. The moving block is detachably mounted on both sides of the sliding plate and slidably mates with the guide grooves on both sides of the lower mold body. The limiting rod is integrally formed with the sliding plate and passes through a through hole at the bottom of the lower mold body. The limiting platform is detachably connected to the lower mold body and is close to the limiting rod. One side of the spring abuts against the limiting ring on the limiting rod, and the other side abuts against the limiting platform. The contact plate is mounted on the bottom of the limiting rod and abuts against the bottom of the limiting platform.

[0008] The lower mold body is provided with four positioning holes, which respectively cooperate with the positioning pins on the upper mold body.

[0009] The upper mold body is also provided with a connecting platform on its top, which is located behind the injection port.

[0010] The support platform is provided with a retaining edge structure at its bottom.

[0011] The injection molding mold further includes a stabilizing mechanism, which includes a stabilizing plate and a sliding pin. The stabilizing plate is detachably connected to the lower mold body and is symmetrically installed. The sliding pin is threadedly connected to the moving block and slidably connected to the stabilizing plate.

[0012] This utility model discloses an injection molding mold. During processing, an external drive component moves the upper mold body downward to cooperate with the lower mold body to form a closed processing cavity. Then, liquid material is injected into the molding cavity through the injection port. After cooling and molding, the processing is completed. Then, when the upper mold body moves upward and separates from the lower mold body, the spring is released and pushes the sliding plate upward, causing the molded part in the molding cavity to move upward, so that the molded part can be removed. There is no need to manually remove the molded part from the molding cavity by hammering or other methods. The operation is more convenient and the use is more convenient. This improves the demolding efficiency of the injection mold and solves the problem that the existing mold structure does not have an ejector mechanism, which makes it difficult to remove the molded part and makes the operation more cumbersome and inconvenient. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of the injection molding mold according to the first embodiment of this utility model.

[0015] Figure 2 This is a schematic diagram of the limiting rod according to the first embodiment of this utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the limiting block according to the first embodiment of this utility model.

[0017] Figure 4 This is a schematic diagram of the overall structure of the injection molding mold according to the second embodiment of this utility model.

[0018] In the diagram: 101-base, 102-support platform, 103-lower mold body, 104-upper mold body, 105-slide plate, 106-limiting block, 107-moving block, 108-limiting rod, 109-spring, 110-limiting platform, 111-abutting plate, 112-forming cavity, 113-injection port, 114-connecting platform, 115-edge structure, 201-stabilizing plate, 202-sliding pin. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0020] Example 1:

[0021] like Figures 1 to 3 As shown, where Figure 1 This is a schematic diagram of the overall structure of an injection molding mold. Figure 2 This is a structural schematic diagram of the limit rod 108. Figure 3 This is a schematic diagram of the structure of the limiting block 106. This utility model provides an injection molding die: including a base 101 and an auxiliary mechanism. The auxiliary mechanism includes a support platform 102, a lower mold body 103, an upper mold body 104, a sliding plate 105, a limiting block 106, a moving block 107, a limiting rod 108, a spring 109, a limiting platform 110, and an abutment plate 111. The aforementioned solution solves the problems of existing mold structures lacking an ejector mechanism, making it inconvenient to remove the molded part, and resulting in cumbersome operation and inconvenience. It is understood that the aforementioned solution makes it easier to remove the molded part.

[0022] In this embodiment, the base 101 is fixed by positioning pins and bolts, and the support platform 102 is installed on the base 101 by positioning pins and bolts. The top of the support platform 102 is a stepped end, and the middle is a rectangular through cavity.

[0023] The support platform 102 is detachably mounted on the base 101. The lower mold body 103 is detachably mounted on the support platform 102 and has a molding cavity 112. The bottom of the upper mold body 104 has a molding part that mates with the molding cavity 112 and is located on the upper side of the lower mold body 103. It also has an injection port 113. The slide plate 105 is slidably disposed within the molding cavity 112. The limiting block 106 is detachably mounted on the bottom of the slide plate 105. The moving block 107 is detachably mounted on the slide plate 105. The plate 105 is slidably fitted with the guide grooves on both sides of the lower mold body 103. The limiting rod 108 is integrally formed with the sliding plate 105 and passes through the through hole at the bottom of the lower mold body 103. The limiting platform 110 is detachably connected to the lower mold body 103 and is close to the limiting rod 108. One side of the spring 109 abuts against the limiting ring on the limiting rod 108, and the other side abuts against the limiting platform 110. The abutting plate 111 is installed at the bottom of the limiting rod 108 and abuts against the bottom of the limiting platform 110. The lower mold body 103 is fixed by positioning pins and bolts. The top of the upper mold body 104 can be connected to an external driving component, which can be a cylinder or hydraulic cylinder, etc. The lower mold body 103 is connected to the molding cavity 112 and is provided with a guide groove to facilitate the vertical sliding of the rectangular ends on both sides of the sliding plate 105. The limiting block 106 is fixed by countersunk bolts arranged from bottom to top, and its bottom inclined surface can abut against the inclined surface on the lower mold body 103. The moving block 107 is L-shaped and is fixed to the sliding parts on both sides of the sliding plate 105 by positioning pins and bolts. The upper distance is the mating length. When the upper mold body 104 moves downward, it will push the sliding plate 105 to the sliding part on both sides of the sliding plate 105. The moving block 107 descends, thereby causing the slide plate 105 to descend and compress the spring 109. After descending to its final position, the top of the moving block 107 is flush with the top end face of the lower mold body 103. At this time, the limiting block 106 abuts against the bottom of the lower mold body 103. The forming cavity 112 forms a sealed cavity structure through the lower mold body 103, the upper mold body 104, the slide plate 105, and the moving block 107. The limiting rods 108 are integrally formed with the slide plate 105 and four are symmetrically arranged. The limiting platform 110 is fixed by positioning pins and bolts, and the abutment plate 111 is fixed to the bottom end of the limiting rod 108 by bolts. The ring on the limiting rod 108 and the spring 109 can both slide through the mating through hole on the lower mold body 103.

[0024] Secondly, the lower mold body 103 is provided with four positioning holes, which respectively cooperate with the positioning pins on the upper mold body 104. This structure is used for the working cooperation between the lower mold body 103 and the upper mold body 104.

[0025] Then, a connecting platform 114 is also provided on the top of the upper mold body 104, and the connecting platform 114 is located behind the injection port 113. The connecting platform 114 facilitates the connection between the upper mold body 104 and the driving component. For example, when the driving component is a cylinder or hydraulic cylinder, the connecting plate is first fixed at the output end of the cylinder or hydraulic cylinder by countersunk bolts, and the connecting plate is connected to the connecting platform 114 by bolts.

[0026] Finally, a retaining edge structure 115 is provided at the bottom of the support platform 102. The retaining edge structure 115 facilitates the loosening and collection of the fixing bolts of the limiting platform 110 and the abutment plate 111 after they fall.

[0027] When using this utility model to solve the problem of existing mold structures lacking an ejector mechanism, making it inconvenient to remove the molded part, and resulting in cumbersome operation and inconvenience, the upper mold body 104 is driven downward by an external drive component to cooperate with the lower mold body 103 to form a closed processing cavity. When the upper mold body 104 moves downward, the sliding plate 105 is pushed downward by the moving block 107, and then liquid material is injected into the molding cavity 112 through the injection port 113. After cooling and molding, the processing is completed. Then, when the upper mold body 104 moves upward and disengages from the lower mold body 103, the spring 109 is released and pushes the sliding plate 105 upward, causing the molded part in the molding cavity 112 to move upward, and the molded part can be removed. There is no need to manually remove the molded part from the molding cavity 112 by hammering or other methods. The operation is more convenient and the use is more convenient, improving the demolding efficiency of the injection mold. Thus, it can solve the problem of existing mold structures lacking an ejector mechanism, making it inconvenient to remove the molded part, and resulting in cumbersome operation and inconvenience.

[0028] Example 2:

[0029] like Figure 4 As shown, where Figure 4 This is a schematic diagram of the overall structure of an injection molding die. Based on the first embodiment, this utility model provides an injection molding die, which further includes a stabilizing mechanism, including a stabilizing plate 201 and a sliding pin 202.

[0030] The stabilizing plate 201 is detachably connected to the lower mold body 103 and symmetrically installed; the sliding pin 202 is threadedly connected to the moving block 107 and slidably connected to the stabilizing plate 201. The stabilizing plate 201 is fixed by positioning pins and bolts, and is provided with a guide groove to cooperate with the sliding pin 202. The external thread end of the sliding pin 202 directly cooperates with the threaded hole on the moving block 107.

[0031] In this embodiment, by setting the stabilizing plate 201 and the sliding pin 202 structure, the stability of the movement of the moving block 107 can be improved.

[0032] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art will understand that all or part of the processes for implementing the above embodiments and equivalent variations made in accordance with the claims of this application are still within the scope of this application.

Claims

1. An injection molding mold, comprising a base, characterized in that: It also includes auxiliary mechanisms; The auxiliary mechanism includes a support platform, a lower mold body, an upper mold body, a sliding plate, a limiting block, a moving block, a limiting rod, a spring, a limiting platform, and a contact plate. The support platform is detachably mounted on the base. The lower mold body is detachably mounted on the support platform and has a molding cavity. The bottom of the upper mold body has a molding part that mates with the molding cavity and is located on the upper side of the lower mold body. It also has an injection port. The sliding plate is slidably mounted in the molding cavity. The limiting block is detachably mounted on the bottom of the sliding plate. The moving block is detachably mounted on both sides of the sliding plate and slidably mates with the guide grooves on both sides of the lower mold body. The limiting rod is integrally formed with the sliding plate and passes through a through hole at the bottom of the lower mold body. The limiting platform is detachably connected to the lower mold body and is close to the limiting rod. One side of the spring abuts against the limiting ring on the limiting rod, and the other side abuts against the limiting platform. The contact plate is mounted on the bottom of the limiting rod and abuts against the bottom of the limiting platform.

2. The injection molding die as described in claim 1, characterized in that: The lower mold body is provided with four positioning holes, which respectively cooperate with the positioning pins on the upper mold body.

3. The injection molding die as described in claim 1, characterized in that: The upper mold body is also provided with a connecting platform on its top, which is located behind the injection port.

4. The injection molding die as described in claim 1, characterized in that: The bottom of the support platform is provided with a retaining edge structure.

5. The injection molding die as described in claim 1, characterized in that... : The injection molding die also includes a stabilizing mechanism, which includes a stabilizing plate and a sliding pin. The stabilizing plate is detachably connected to the lower mold body and is installed symmetrically. The sliding pin is threadedly connected to the moving block and slidably connected to the stabilizing plate.