Die structure convenient to release
By employing a first ejector rod and a second ejector rod with a limiting protrusion and an inclined surface in the release mold, the release process is simplified and production efficiency is improved.
Patent Information
- Application Number
- CN202520456389.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-03-14
AI Technical Summary
The existing release mold has a complex structure, which makes the release process cumbersome and affects production efficiency.
The design employs a first process groove, a second process groove, a first ejector rod, and a second ejector rod. By combining a limiting protrusion with an inclined surface, the release process is simplified, and the release is achieved by utilizing the separation action of the first ejector rod and the second ejector rod.
The deactivation process has been simplified, and work efficiency has been improved.
Smart Images

Figure CN223971979U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of release mold technology, and in particular to a mold structure that facilitates release. Background Technology
[0002] Release molds, also known as side-pulling molds or slider molds, are a type of mold specifically designed to manufacture products with undercuts (i.e., features that cannot be directly pulled out in the demolding direction), such as screws, clips, and undercuts. Through special mechanical structure design, these molds can smoothly remove the product from the mold after it has been formed, avoiding product damage or mold wear caused by undercuts.
[0003] Meanwhile, release molds are also widely used in automotive parts, home appliance housings, and electronic product housings, especially for products that require precise replication of complex geometries. For example, plastic parts with features such as button holes, vents, and decorative textures often require this type of mold.
[0004] Existing release molds typically employ complex structures, such as sliders and angled ejectors, which makes the release process cumbersome, reduces work efficiency, and affects production speed. To address these issues, the inventors have proposed a mold structure that facilitates release. Utility Model Content
[0005] The purpose of this utility model is achieved through the following means: a mold structure for easy release, including a mounting block and a demolding assembly, the demolding assembly being connected to the mounting block, the demolding assembly including a first ejector rod, a second ejector rod, and a release rod, the first ejector rod, the second ejector rod, and the release rod being connected to the mounting block, the mounting block having a first process groove in the middle that matches the first ejector rod and the second ejector rod, the first process groove extending toward the middle of the mounting block, the mounting block having a second process groove at both ends of the bottom surface of the mounting block, the second process groove extending through the first process groove, the second process groove having a protrusion opposite to the first process groove in the second process groove, the bottom surface of the protrusion having an inclined surface, the lower ends of the first ejector rod and the second ejector rod both having a limiting protrusion, the top surface of the limiting protrusion having a fitting surface that matches the inclined surface.
[0006] In a further embodiment of the above description, the mounting block has an ejection hole in the middle of its bottom surface, and the release rod is movably disposed in the ejection hole. The ejection hole extends toward the top surface of the mounting block, and the bottom of the release rod has a limiting block. The top surface of the limiting block fits against the bottom surface of the mounting block. The limiting block is used to provide a limiting effect when the release rod is ejected.
[0007] In the above description, as a further embodiment, the top of the first ejector rod and the top of the second ejector rod are attached to each other, and a forming groove is provided at the position where the top of the first ejector rod and the top of the second ejector rod are attached. The forming groove is cylindrical, the inner wall of the forming groove is threaded, and the forming groove is concentric with the ejector hole; the forming groove is used to provide the forming effect.
[0008] In the above description, as a further embodiment, the bottom surface of the forming groove is provided with a clearance hole that matches the release rod. The clearance hole is connected to the through hole. The top of the release rod is provided with a partition block that extends toward the forming groove. The clearance hole is used to provide the release rod with a movable effect.
[0009] In the above description, as a further embodiment, the mounting block is provided with guide plates on both sides, the guide plates are connected to the top ends of the mounting block, a forming block is provided above the mounting block, and the bottom surface of the forming block is provided with a top forming position that matches the first process groove near the first process groove; the guide plates are used to provide the movement effect of the mounting block.
[0010] In a further embodiment of the above description, the molding block is provided with a guide protrusion near the guide plate, and the guide plate is provided with a movable groove that matches the guide protrusion; the movable groove is used to provide a guiding effect for the molding block.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: By adopting the design of a first process groove, a second process groove, a first ejector rod, and a second ejector rod, and by providing limiting protrusions and contact surfaces at the lower ends of both the first and second ejector rods, and by providing opposing protrusions in the first process groove with inclined surfaces on the bottom surfaces of the protrusions, when the first and second ejector rods are ejected toward the first process groove, due to the cooperation effect between the contact surfaces and the inclined surfaces, as ejection continues, the first and second ejector rods will be subjected to a force away from the protrusions, thereby causing the first and second ejector rods to separate and achieve the release effect. Compared with using inclined blocks and sliders for release, the structure is simpler, the release process is reduced, and work efficiency is improved. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of a mold structure for easy release according to the present invention;
[0013] Figure 2 This is an exploded view of the structure of a mold for easy release according to the present invention;
[0014] Figure 3 This is a schematic diagram of the internal structure of a mold structure for easy release according to this utility model;
[0015] Figure 4This is a schematic diagram of the internal structure of the mounting block in a mold structure for easy release according to this utility model;
[0016] Figure 5 This is a schematic diagram of the internal structure of the mounting block in a mold structure for easy release according to this utility model, from another perspective.
[0017] Figure 6 This is a schematic diagram of the mold structure of the present invention in the mold-opening state, which facilitates the release of the fastener.
[0018] In the diagram: 1-mounting block, 2-first ejector rod, 3-second ejector rod, 4-disengagement rod;
[0019] 5-First process groove, 6-Second process groove, 7-Protrusion, 8-Inclined surface, 9-Limiting protrusion;
[0020] 10-Mating surface, 11-Ejection hole, 12-Limiting block, 13-Forming groove, 14-Thread, 15-Allowing hole;
[0021] 16-Separator block, 17-Guide plate, 18-Forming block, 19-Top forming position, 20-Guide protrusion
[0022] 21-Moving chute. Detailed Implementation
[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0024] For this embodiment, please refer to Figures 1-6 The specific implementation of the mold structure for easy release includes a mounting block 1 and a demolding assembly. The demolding assembly is connected to the mounting block 1 and includes a first ejector rod 2, a second ejector rod 3, and a release rod 4. The first ejector rod 2, the second ejector rod 3, and the release rod 4 are all connected to the mounting block 1. The middle of the mounting block 1 is provided with a first process groove 5 that matches the first ejector rod 2 and the second ejector rod 3. The first process groove 5 extends toward the middle of the mounting block 1. The two ends of the bottom surface of the mounting block 1 are provided with second process grooves 6 that extend through the first process groove 5. The second process groove 6 is provided with a protrusion 7 in the second process groove 6 near the position of the first process groove 5. The bottom surface of the protrusion 7 is provided with an inclined surface 8. The lower ends of the first ejector rod 2 and the second ejector rod 3 are provided with limiting protrusions 9. The top surface of the limiting protrusions 9 is provided with a fitting surface 10 that matches the inclined surface 8.
[0025] The mounting block 1 has an ejection hole 11 in the middle of its bottom surface. The release rod 4 is movably disposed in the ejection hole 11. The ejection hole 11 extends toward the top surface of the mounting block 1. The bottom of the release rod 4 is provided with a limiting block 12. The top surface of the limiting block 12 is in contact with the bottom surface of the mounting block 1.
[0026] The top of the first ejector rod 2 and the top of the second ejector rod 3 are in contact with each other. A forming groove 13 is provided at the position where the top of the first ejector rod 2 and the top of the second ejector rod 3 are in contact with each other. The forming groove 13 is cylindrical and the inner wall of the forming groove 13 is distributed with threads 14. The forming groove 13 is concentric with the ejector hole 11.
[0027] The bottom surface of the forming groove 13 is matched with the clearance hole 15 that is provided with the release rod 4. The clearance hole 15 is connected to the through hole. The top of the release rod 4 is provided with a partition block 16, which extends toward the forming groove 13.
[0028] The mounting block 1 has guide plates 17 on both sides, and guide plates 17 are connected to the top of the mounting block 1 at both ends. A forming block 18 is provided above the mounting block 1. The bottom surface of the forming block 18 is provided with a top forming position 19 that matches the first process groove 5.
[0029] The molding block 18 is provided with a guide protrusion 20 near the guide plate 17, and the guide plate 17 is provided with a movable groove 21 that matches the guide protrusion 20.
[0030] The working process of this utility model is as follows: the first ejector rod 2 and the second ejector rod 3 are ejected, and at the same time, the release rod 4 is moved upward. When the limiting protrusion 9 at the lower end of the first ejector rod 2 and the second ejector rod 3 are in contact with the protrusion 7 in the second process groove 6, and then continue to be ejected, the first ejector rod 2 and the second ejector rod 3 will be subjected to a force away from the protrusion 7, thereby achieving the effect of separation from the product.
[0031] Meanwhile, since the limiting block 12 at the lower end of the release rod 4 is in contact with the bottom surface of the mounting block 1, when the first ejector rod 2 and the second ejector rod 3 are ejected, the release rod 4 is limited by the limiting block 12, thereby separating the release rod 4 from the product. At the same time, when the first ejector rod 2 and the second ejector rod 3 are ejected, they will drive the molding block 18 to move upward. When the molding block 18 moves upward, the molding block 18 will move along the guide plate 17 through the guide protrusion 20, thereby achieving the effect of separating the molding block 18 from the product.
[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0033] Furthermore, in the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0034] Finally, it should be noted that the above embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model. These modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A mold structure facilitating ejection, comprising a mounting block and an ejection assembly, the ejection assembly being connected to the mounting block, characterized in that: The demolding assembly comprises a first ejection rod, a second ejection rod and a separation rod, the first ejection rod, the second ejection rod and the separation rod are connected with the mounting block, the middle part of the mounting block is provided with a first process groove matched with the first ejection rod and the second ejection rod, the first process groove extends towards the middle part of the mounting block, the bottom surface of the mounting block is provided with a second process groove at both ends, the second process groove extends through and extends towards the direction of the first process groove, the position close to the first process groove in the second process groove is oppositely provided with a protrusion, the bottom surface of the protrusion is provided with an inclined surface, the lower end of the first ejection rod and the second ejection rod is provided with a limiting protrusion, the top surface of the limiting protrusion is provided with a matching surface matched with the inclined surface.
2. A mold structure facilitating tripping according to claim 1, characterized in that: The middle part of the bottom surface of the mounting block is provided with an ejection hole, the separation rod is movably arranged in the ejection hole, the ejection hole extends towards the direction of the top surface of the mounting block, the bottom of the separation rod is provided with a limiting block, the top surface of the limiting block is matched with the bottom surface of the mounting block.
3. The mold structure of claim 1, wherein: The top of the first ejection rod and the top of the second ejection rod are matched, the position where the top of the first ejection rod and the top of the second ejection rod are matched is provided with a forming groove, the forming groove is cylindrical, the inner wall of the forming groove is provided with threads, and the forming groove is concentric with the ejection hole.
4. A mold structure facilitating tripping according to claim 3, wherein: The bottom surface of the forming groove is matched with the avoiding hole provided with the separation rod, the avoiding hole is communicated with the through hole, the top of the separation rod is provided with a partition block, the partition block extends towards the direction of the forming groove.
5. The mold structure of claim 1, wherein: Both sides of the mounting block are provided with guide plates, the guide plates are arranged at both ends of the top of the mounting block, the top of the mounting block is provided with a forming block, the bottom surface of the forming block is provided with a top forming position matched with the first process groove close to the first process groove.
6. A mold structure facilitating tripping as defined in claim 5, wherein: The position close to the guide plate of the forming block is provided with a guide protrusion, the guide plate is provided with a movable sliding groove matched with the guide protrusion.