Glass steel handicraft anti-sticking quick demolding spring ejection mold
By designing a sliding block and ejector rod to cooperate in the anti-sticking and quick demolding spring ejection of the mold, the problems of uneven force and manual assistance during the demolding process of fiberglass crafts are solved, realizing automated demolding, improving efficiency and reducing deformation and damage.
Patent Information
- Application Number
- CN202521044433.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-26
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-05-26
AI Technical Summary
In the current demolding process of fiberglass crafts, the push rod and push plate mechanism cannot apply force evenly, resulting in deformation and damage. In addition, manual assistance is required, which increases the labor intensity of operators and reduces demolding efficiency.
Design a non-stick, quick-release spring ejector mold that includes a slider, ejector rod, and spring. The slider drives the ejector rod and spring to achieve uniform force application and automatic reset. Combined with a motor-driven threaded rod system, automated demolding is achieved.
It achieves uniform demolding of fiberglass crafts, reduces deformation and damage, lowers the labor intensity of operators, and improves demolding efficiency.
Smart Images

Figure CN224675349U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fiberglass technology, specifically to a fiberglass craft anti-sticking and quick demolding spring ejection mold. Background Technology
[0002] Fiberglass, scientifically known as fiber reinforced plastic, is a type of fiber-reinforced composite plastic. It generally refers to reinforced plastics that use glass fiber to reinforce unsaturated polyester, epoxy resin, and phenolic resin matrices, with glass fiber or its products as the reinforcing material. Unlike tempered glass, fiberglass crafts need to be demolded after processing, thus requiring a non-stick, quick-release spring for ejecting the mold.
[0003] When demolding fiberglass crafts, operators often use push rod demolding mechanisms or push plate demolding mechanisms. However, these mechanisms cannot apply a uniform force to the product, which may lead to deformation or damage due to uneven local force. In such cases, a reset mechanism is required to correct the damage. Furthermore, manual assistance is often needed during ejection demolding. This operation method increases the labor intensity of the operators and may reduce the efficiency of ejection demolding, thus reducing its practicality. Summary of the Invention
[0004] The purpose of this utility model is to provide a quick-release spring ejector mold for fiberglass crafts, which solves the problem mentioned in the background art where operators often use push rod ejector mechanisms or push plate ejector mechanisms when demolding fiberglass crafts. These mechanisms cannot apply a relatively uniform force to the product, and may cause deformation or damage due to uneven local force, requiring a reset mechanism to reset it. In addition, manual assistance is often required during ejection, which increases the labor intensity of the operator and may reduce the efficiency of ejection, thus reducing its practicality.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a fiberglass craft anti-stick quick demolding spring ejection mold, comprising a base plate, a worktable fixedly mounted on the top of the base plate, a fixed mold fixedly mounted on the top of the worktable, an ejection plate movably mounted inside the fixed mold, a vertical tube fixedly mounted around the top of the worktable, grooves formed on both sides of the vertical tube, a round shaft movably mounted inside each groove, and sliders located inside the vertical tube fixedly mounted on opposite sides of each round shaft, the outer surface of each slider movably connected to the inner surface of the vertical tube, a push rod fixedly mounted on the top of each slider, the top of each push rod penetrating the worktable and the fixed mold and fixedly connected to the bottom of the ejection plate, and a spring fixedly mounted between each slider and the worktable, with the inner surface of the spring movably connected to the outer surface of the push rod.
[0006] Preferably, a connecting rod is movably installed at the bottom of each vertical tube, the top of the connecting rod passes through the vertical tube and is fixedly connected to the bottom of the slider, and a top plate is fixedly installed at the bottom of the connecting rod.
[0007] Preferably, a cover plate is movably installed on the top of the fixed mold, and handles are fixedly installed on both sides of the top of the cover plate.
[0008] Preferably, a vertical rod is fixedly installed on the top of the base plate, a strip groove is opened inside the vertical rod, a threaded rod is rotatably installed inside the strip groove, and a sliding sleeve is threaded onto the surface of the threaded rod.
[0009] Preferably, a motor is fixedly installed at the top of the vertical rod, and the output end of the motor passes through the vertical rod and is fixedly connected to the top of the threaded rod.
[0010] Preferably, vertical plates are fixedly installed on both sides of the sliding sleeve, and a circular plate is fixedly installed on the top of the vertical plates.
[0011] Compared with the prior art, the beneficial effects of this utility model are: This type of fiberglass craft anti-stick quick demolding spring ejector mold works as follows: During daily use, when the top plate slides, it drives the connecting rod to slide as well. The connecting rod then drives the slider to slide inside the vertical tube. At this time, the slider drives the round shaft to slide inside the slide groove. The slider then drives the ejector rod to slide between the worktable and the fixed mold. Subsequently, the slider compresses the spring, and the ejector rod drives the ejector plate to slide inside the fixed mold. This automatically demolds the fiberglass craft inside the fixed mold and on top of the ejector plate. This operation method uses multiple sets of ejector rods and springs to eject the craft, applying a more uniform force to the fiberglass craft and reducing deformation and damage caused by uneven local force. After demolding, the spring rebounds, causing the ejector plate to reset, eliminating the need for a separate reset mechanism.
[0012] This fiberglass craft anti-stick quick demolding spring ejector mold, during daily use, the operator starts the motor, the motor operation causes the threaded rod to rotate, and the threaded rod drives the sliding sleeve to slide inside the strip groove. At this time, the sliding sleeve drives the vertical plate to slide, and the vertical plate drives the circular plate to slide. At the same time, the circular plate drives the top plate to slide, and then through the connecting rod and the ejector rod, the ejector plate is automatically demolded, thereby reducing the labor intensity of the operator and improving the demolding efficiency. Attached Figure Description
[0013] Figure 1 This is the front view of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 For the present utility model Figure 2 Enlarged view of a portion of point A in the middle; Figure 4 This is a schematic diagram of the top structure of the base plate of this utility model.
[0014] In the diagram: 1. Base plate; 2. Workbench; 3. Fixed mold; 4. Vertical tube; 5. Slide groove; 6. Round shaft; 7. Slider; 8. Ejector rod; 9. Spring; 10. Connecting rod; 11. Top plate; 12. Ejector plate; 13. Cover plate; 14. Handle; 15. Vertical rod; 16. Strip groove; 17. Threaded rod; 18. Sliding sleeve; 19. Motor; 20. Vertical plate; 21. Round plate. Detailed Implementation
[0015] 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.
[0016] Please see Figure 1-4This utility model provides a technical solution: a fiberglass craft anti-stick quick demolding spring ejector mold, including a base plate 1, a workbench 2 fixedly installed on the top of the base plate 1, a fixed mold 3 fixedly installed on the top of the workbench 2, an ejector plate 12 movably installed inside the fixed mold 3, and an anti-stick layer, such as a polytetrafluoroethylene coating, is provided on the inner surface of the fixed mold 3 and the outer surface of the ejector plate 12. The material has an extremely low surface friction coefficient, which can effectively reduce the adhesion between the fiberglass and the mold, making the craft smoother during demolding and reducing surface damage and scrap rate caused by adhesion. Vertical tubes 4 are fixedly installed around the top of the workbench 2. There are four vertical tubes 4, and the four vertical tubes 4 are the same size. Slide grooves 5 are opened on both sides of the vertical tubes 4. A round shaft 6 is movably installed inside the slide grooves 5. A slider 7 located inside the vertical tube 4 is fixedly installed on the opposite side of the round shaft 6. When the slider 7 slides, it will drive the round shaft 6 to slide inside the slide groove 5. Due to the design of the slide groove 5 and the round shaft 6, the sliding of the slider 7 is more stable. The outer surface of the slider 7 is movably connected to the inner surface of the vertical tube 4. The smoothness of the outer surface of the slider 7 and the inner surface of the vertical tube 4 allows the slider 7 to slide more smoothly inside the vertical tube 4, reducing the occurrence of jamming. The top of the slider 7 is fixedly installed with a push rod 8. The top of the push rod 8 passes through the worktable 2 and the fixed mold 3 and is fixedly connected to the bottom of the ejector plate 12. When the slider 7 slides, it will drive the push rod 8 to slide, which in turn will drive the ejector plate 12 to slide, so that demolding can be performed through the ejector plate 12. A spring 9 is fixedly installed between the slider 7 and the worktable 2, and the inner surface of the spring 9 is movably connected to the outer surface of the push rod 8. When the slider 7 slides, it will drive the spring 9 to slide, which will then squeeze and compress it. The bottom of the vertical tube 4 is movably installed with a connecting rod 10. The top of the connecting rod 10 passes through the vertical tube 4 and is fixedly connected to the bottom of the slider 7. The bottom of the connecting rod 10 is fixedly installed with a top plate 11. When the top plate 11 slides, it will drive the connecting rod 10 to slide, which in turn will drive the slider 7 to slide inside the vertical tube 4.
[0017] A cover plate 13 is movably mounted on the top of the fixed mold 3, and handles 14 are fixedly mounted on both sides of the top of the cover plate 13. The design of the cover plate 13 and handles 14 can prevent dust from falling into the fixed mold 3 when it is not in use, thereby improving its anti-stick effect. A vertical rod 15 is fixedly mounted on the top of the base plate 1. A strip groove 16 is opened inside the vertical rod 15. A threaded rod 17 is rotatably mounted inside the strip groove 16, and a sliding sleeve 18 is threadedly fitted onto the surface of the threaded rod 17. When the threaded rod 17 rotates, it will drive the sliding sleeve 18 to slide inside the strip groove 16. The position of the sliding sleeve 18 can be adjusted. A motor 19 is fixedly installed on the top of the vertical rod 15, and the output end of the motor 19 passes through the vertical rod 15 and is fixedly connected to the top of the threaded rod 17. When the motor 19 is running, it will cause the threaded rod 17 to rotate, thereby improving the adjustment efficiency of the sliding sleeve 18. Vertical plates 20 are fixedly installed on both sides of the sliding sleeve 18, and a circular plate 21 is fixedly installed on the top of the vertical plate 20. When the sliding sleeve 18 slides, it will drive the vertical plate 20 to slide, which in turn will drive the circular plate 21 to slide, thereby pushing the top plate 11 to slide through the circular plate 21.
[0018] Working principle: First, the operator slides the cover plate 13 out from the top of the fixed mold 3 using handle 14. Then, the fiberglass craft is placed inside the fixed mold 3 and pressed by a hydraulic mechanism. After pressing is completed, the motor 19 is started. The operation of the motor 19 causes the threaded rod 17 to rotate, which in turn drives the sliding sleeve 18 to slide inside the strip groove 16. At this time, the sliding sleeve 18 drives the vertical plate 20 to slide, which in turn drives the circular plate 21 to slide. Simultaneously, the circular plate 21 drives the top plate 11 to rotate. First, the top plate 11 slides, which in turn causes the connecting rod 10 to slide. Then, the connecting rod 10 causes the slider 7 to slide inside the vertical tube 4. At this time, the slider 7 causes the round shaft 6 to slide inside the slide groove 5. Then, the slider 7 causes the ejector rod 8 to slide inside the worktable 2 and the fixed mold 3. Subsequently, the slider 7 will squeeze and compress the spring 9. At the same time, the ejector rod 8 will cause the ejector plate 12 to slide inside the fixed mold 3, thus automatically demolding the fiberglass craft inside the fixed mold 3 and the top of the ejector plate 12.
[0019] 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 fiberglass craft anti-stick quick demolding spring ejection mold, comprising a base plate (1), characterized in that: A workbench (2) is fixedly installed on the top of the base plate (1). A fixed mold (3) is fixedly installed on the top of the workbench (2). An ejector plate (12) is movably installed inside the fixed mold (3). A vertical tube (4) is fixedly installed around the top of the workbench (2). Slide grooves (5) are provided on both sides of the vertical tube (4). A round shaft (6) is movably installed inside the slide grooves (5). A slider (7) located inside the vertical tube (4) is fixedly installed on the opposite side of the round shaft (6). The outer surface of the slider (7) is movably connected to the inner surface of the vertical tube (4). A push rod (8) is fixedly installed on the top of the slider (7). The top of the push rod (8) passes through the workbench (2) and the fixed mold (3) and is fixedly connected to the bottom of the ejector plate (12). A spring (9) is fixedly installed between the slider (7) and the workbench (2). The inner surface of the spring (9) is movably connected to the outer surface of the push rod (8).
2. The fiberglass craft anti-stick quick demolding spring ejector mold according to claim 1, characterized in that: The bottom of each vertical tube (4) is movably equipped with a connecting rod (10). The top of the connecting rod (10) passes through the vertical tube (4) and is fixedly connected to the bottom of the slider (7). The bottom of the connecting rod (10) is fixedly equipped with a top plate (11).
3. The fiberglass craft anti-stick quick demolding spring ejector mold according to claim 1, characterized in that: The top of the fixed mold (3) is movably fitted with a cover plate (13), and handles (14) are fixedly installed on both sides of the top of the cover plate (13).
4. The fiberglass craft anti-stick quick demolding spring ejector mold according to claim 1, characterized in that: A vertical rod (15) is fixedly installed on the top of the base plate (1). A strip groove (16) is opened inside the vertical rod (15). A threaded rod (17) is rotatably installed inside the strip groove (16), and a sliding sleeve (18) is threaded onto the surface of the threaded rod (17).
5. The fiberglass craft anti-stick quick demolding spring ejector mold according to claim 4, characterized in that: A motor (19) is fixedly installed on the top of the vertical rod (15), and the output end of the motor (19) passes through the vertical rod (15) and is fixedly connected to the top of the threaded rod (17).
6. The fiberglass craft anti-stick quick demolding spring ejector mold according to claim 4, characterized in that: Vertical plates (20) are fixedly installed on both sides of the sliding sleeve (18), and a circular plate (21) is fixedly installed on the top of the vertical plate (20).