Demolding mechanism with forced return structure
By designing a mold release mechanism with a forced return structure, the automatic mold release of the inverted press is achieved by using the cooperation of the base, moving seat, mold seat, oblique top and spring, solving the problems of complex structure and large space in the prior art, and improving the demolding efficiency and stability.
Patent Information
- Application Number
- CN202422380126.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The existing inverted mold release mechanism has a complex structure and takes up a large space, making it inconvenient for inverted mold release.
A mold release mechanism with a forced return structure is adopted, including a base, a moving seat, a mold seat, an oblique top and a spring. The moving seat is driven to slide into the alignment groove by external force, and the automatic mold release of the product and mechanism return is achieved by using the compression and resilience of the spring.
The demolding effect with simple structure and automatic return position is achieved, and the demolding efficiency and stability are improved.
Smart Images
Figure CN223131302U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of molds, and more specifically, to a demolding mechanism with a forced return structure. Background Art
[0002] Undercuts in plastic molds are one of the important design elements in injection molding. They can improve the assembly accuracy and stability of products, enhance the sealing and durability of products, and improve the appearance and feel of products.
[0003] Due to structures such as flanges or hooks that are hooked to the mold, undercuts cannot be directly demolded. Usually, a special undercut demolding mechanism is used for demolding. However, the existing undercut demolding mechanisms have complex structures, occupy a large space, and are not convenient for undercut demolding. Utility Model Content
[0004] The purpose of the embodiments of this application is to provide a demolding mechanism with a simple structure and capable of automatic return.
[0005] The embodiments of this application provide a demolding mechanism with a forced return structure, adopting the following technical solutions:
[0006] A demolding mechanism with a forced return structure includes a base, a moving seat, a mold base, a lifter, and a spring. The base has a sliding groove, the moving seat is arranged in the sliding groove, the mold base is arranged on the base, the mold base has a positioning groove, one end of the moving seat close to the mold base has a first hook-shaped groove, one end of the lifter is slidably arranged in the first hook-shaped groove, the other end of the lifter movably penetrates through the mold base, and the spring is arranged between the moving seat and the mold base.
[0007] Preferably, the end of the lifter has a second hook-shaped groove, and the first hook-shaped groove is in sliding fit with the second hook-shaped groove.
[0008] Preferably, a limiting block is arranged on the base, and the limiting block abuts against the moving seat.
[0009] Preferably, one end of the limiting block close to the moving seat has a first recess, and the end of the moving seat has a protrusion or a second recess, and the protrusion or the second recess is in sliding fit with the first recess.
[0010] Preferably, two limiting blocks are arranged.
[0011] Preferably, the limiting block is connected to the mold base by bolts.
[0012] Preferably, the moving seat has a receiving cavity, and one end of the spring away from the mold base extends into the interior of the receiving cavity.
[0013] Preferably, a shovel base is movably installed inside the base.
[0014] Compared with the prior art, the beneficial effects of the present application are as follows:
[0015] The demolding mechanism provided by the present application has the characteristics of simple structure and automatic return. When demolding a product, an external force drives the moving seat to slide towards the side close to the mold base and enter the inside of the alignment groove. At this time, the spring is compressed under force, and one end of the inclined ejector slides downward along the first hook-shaped groove, and the other end of the inclined ejector slides synchronously inside the mold base and pushes out the product, realizing the demolding of the product.
[0016] After the external force disappears, the spring rebounds. Under the action of the spring's resilience force, the moving seat slides away from the mold base and leaves the alignment groove. One end of the inclined ejector slides synchronously upward along the first hook-shaped groove to the initial position, and the other end of the inclined ejector slides synchronously inside the mold base, thus realizing the return of the demolding mechanism. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.
[0018] Figure 1 Structural schematic diagrams of some embodiments of the present invention;
[0019] Figure 2 For Figure 1 Structural schematic diagrams from another perspective;
[0020] Figure 3 Exploded views of some embodiments of the present invention;
[0021] Figure 4 For Figure 3 Structural schematic diagrams from another perspective;
[0022] Figure 5 Exploded views of the moving seat and the inclined ejector in some embodiments of the present invention.
[0023] The reference numerals are respectively:
[0024] 1. Base; 2. Moving seat; 3. Mold base; 4. Inclined ejector; 5. Spring; 6. Chute; 7. Alignment groove; 8. First hook-shaped groove; 9. Second hook-shaped groove; 10. Limit block; 11. First recess; 12. Protrusion; 13. Second recess; 14. Accommodation cavity; 15. Shovel base; 16. Product. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. Components of the embodiments of this application usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.
[0026] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of this application that is claimed, but merely represents selected embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts fall within the scope of protection of this application.
[0027] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0028] In the description of this application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the products of this application are customarily placed during use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.
[0029] In addition, terms such as "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0030] In the description of this application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.
[0031] Embodiment
[0032] As Figures 1-5 shown, the demolding mechanism with a forced return structure described in the embodiments of the present application includes a base 1, a moving seat 2, a mold base 3, a lifter 4 and a spring 5. The base 1 has a chute 6, the moving seat 2 is arranged in the chute 6, the mold base 3 is arranged on the base 1, the mold base 3 has an alignment groove 7, one end of the moving seat 2 close to the mold base 3 has a first hook-shaped groove 8, one end of the lifter 4 is slidably arranged in the first hook-shaped groove 8, the other end of the lifter 4 movably penetrates through the mold base 3, and the spring 5 is arranged between the moving seat 2 and the mold base 3.
[0033] When demolding the product 16, an external force drives the moving seat 2 to slide towards the side close to the mold base 3 and enter the interior of the alignment groove 7. At this time, the spring 5 is compressed by force, one end of the lifter 4 slides downward along the first hook-shaped groove 8, and the other end of the lifter 4 slides synchronously along the interior of the mold base 3 and pushes out the product 16, realizing the demolding of the product 16. After the external force disappears, the spring 5 rebounds. Under the action of the restoring force of the spring 5, the moving seat 2 slides towards the side away from the mold base 3 and leaves the alignment groove 7, and one end of the lifter 4 slides synchronously upward along the first hook-shaped groove 8 to the initial position, and the other end of the lifter 4 slides synchronously along the interior of the mold base 3, thereby realizing the return of the demolding mechanism.
[0034] In this embodiment, the end of the lifter 4 has a second hook-shaped groove 9, and the first hook-shaped groove 8 is slidably matched with the second hook-shaped groove 9, which is convenient for assembling between the lifter 4 and the moving seat 2 and improves the use effect at the same time.
[0035] In this embodiment, a limiting block 10 is arranged on the base 1, the limiting block 10 abuts against the moving seat 2, and the limiting block 10 plays a limiting role on the moving seat 2 to ensure the use effect.
[0036] In this embodiment, one end of the limiting block 10 close to the moving seat 2 has a first recess 11, and the end of the moving seat 2 has a protrusion 12 or a second recess 13, and the protrusion 12 or the second recess 13 is slidably matched with the first recess 11.
[0037] In this embodiment, two limiting blocks 10 are arranged. The end of the moving seat 2 can be provided with a protrusion 12 and a second recess 13, or can be provided with two protrusions 12 or two second recesses 13. The two limiting blocks 10 respectively limit the two ends of the moving seat 2 to ensure that the moving seat 2 will not shift during operation and improve the stability of the moving seat 2.
[0038] In this embodiment, the limiting block 10 and the mold base 3 are connected by bolts, which is convenient for disassembling and assembling between the limiting block 10 and the mold base 3.
[0039] In this embodiment, the moving base 2 has a receiving cavity 14. One end of the spring 5 away from the die base 3 extends into the interior of the receiving cavity 14. The receiving cavity 14 is used to accommodate the spring 5 and at the same time plays a limiting role on the spring 5 to prevent the spring 5 from shifting during use and ensure the use effect.
[0040] In this embodiment, a spade base 15 is movably installed inside the base 1. During demoulding, the spade base 15 is used to position the base 1.
[0041] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.
Claims
1. A demoulding mechanism with a forced return structure, characterized in that: It includes a base, a moving seat, a mold base, a lifter and a spring. The base has a chute, the moving seat is arranged in the chute, the mold base is arranged on the base, the mold base has an alignment groove, one end of the moving seat close to the mold base has a first hook-shaped groove, one end of the lifter is slidably arranged in the first hook-shaped groove, the other end of the lifter movably penetrates through the mold base, and the spring is arranged between the moving seat and the mold base.
2. The demolding mechanism with a forced return structure according to claim 1, characterized in that: The end of the lifter has a second hook-shaped groove, and the first hook-shaped groove is slidably matched with the second hook-shaped groove.
3. The demolding mechanism with a forced return structure according to claim 1, characterized in that: A limiting block is arranged on the base, and the limiting block abuts against the moving seat.
4. The demolding mechanism with a forced return structure according to claim 3, characterized in that: One end of the limiting block close to the moving seat has a first recess, and the end of the moving seat has a protrusion or a second recess, and the protrusion or the second recess is slidably matched with the first recess.
5. The demolding mechanism with a forced return structure according to claim 4, wherein: There are two limiting blocks.
6. The demoulding mechanism with a forced return structure according to claim 5, characterized in that: The limiting block and the mold base are connected by bolts.
7. The demolding mechanism with a forced return structure according to claim 1, characterized in that: The moving seat has a receiving cavity, and one end of the spring away from the mold base extends into the interior of the receiving cavity.
8. A demolding mechanism with a forced return structure according to claim 1, characterized in that: A sprue puller is movably installed inside the base.