Plastic part forming mold convenient to demold
By using hydraulic push rods and lifting plates, non-destructive demolding is achieved, solving the problem of wear on the edges and corners of existing molds during demolding and improving the quality of finished products.
Patent Information
- Application Number
- CN202520036904.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-01-07
AI Technical Summary
Existing molding dies use grippers to hold the model during demolding, which causes wear on the edges and corners of the model and affects the quality of the finished product.
The system employs a combination of hydraulic push rods, positioning plates, lifting plates, support rods, fixed cylinders, and fixed plates. By using the lifting plates and top rods in conjunction, the system avoids directly clamping the model and instead uses sealing blocks and top plates to lift the model from the bottom for material removal.
It protects the edges and corners of the model, prevents wear and tear, and improves the quality of the finished product.
Smart Images
Figure CN223644045U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mould technical field, especially a plastic part forming die convenient to demould. BACKGROUND
[0002] Plastic mould is a kind of combination type mould for compression moulding, extrusion moulding, injection moulding, blow moulding and low-foam forming, and the coordinated change of male and female moulds and auxiliary forming system can process a series of plastic parts with different shapes and sizes.
[0003] For the related technology in the above, the defect of the existing forming die is that the model is taken out by using clamping jaw to clamp the model during demolding, which can cause the edge of the model to be abraded, affect the finished product quality of the model, therefore, the utility model provides a plastic part forming die convenient to demould. UTILITY MODEL CONTENT
[0004] The purpose of the present application is to provide a plastic part forming die convenient to demould to solve the problem that the model is taken out by using clamping jaw to clamp the model during demolding, which can cause the edge of the model to be abraded, affect the finished product quality of the model.
[0005] To achieve the above purpose, the present application provides the following technical scheme: a plastic part forming die convenient to demould, comprising a lower die and an upper die, the two sides of the lower die are provided with a material ejecting assembly; the material ejecting assembly comprises a supporting rod arranged outside the lower die, the bottom end of the supporting rod is fixedly connected with a lifting plate, the top of the lifting plate is fixedly connected with a lifting rod, the two sides of the upper die are fixedly connected with a fixed plate, and the bottom of the fixed plate is fixedly connected with a fixed cylinder matched with the supporting rod.
[0006] Preferably, the outer side of the lower die is fixedly connected with a supporting plate, the bottom of the supporting plate is fixedly connected with a hydraulic push rod, the output end of the hydraulic push rod is fixedly connected with a positioning plate, and the positioning plate is fixedly connected with any lifting plate.
[0007] Preferably, a pair of grooves are arranged in the inner wall bottom of the lower die, and a slot hole is arranged in the inner wall inner side of the groove.
[0008] Preferably, a top plate is slidably connected to the inner wall bottom of the groove, and the bottom of the top plate is fixedly connected with a sealing block matched with the slot hole.
[0009] Preferably, the sealing block is a magnetic block, and the lifting rod has magnetism.
[0010] Preferably, a material injection port is arranged in the inner side of the upper die, and the upper die is matched with the lower die.
[0011] Preferably, multiple support frames are fixedly connected to the outer side of the lower mold, and multiple connecting rods are fixedly connected between a pair of lifting plates.
[0012] In summary, the technical effects and advantages of this utility model are as follows:
[0013] 1. In this utility model, by cooperating with hydraulic push rods, positioning plates, support plates, support rods, fixing cylinders, and fixing plates, the upper mold can be lifted to one end before material removal. By cooperating with lifting plates, push rods, sealing blocks, and top plates, the model can be removed from the bottom, avoiding external clamping of the model and causing wear on the edges and corners, thus protecting the model.
[0014] 2. In this utility model, the cooperation of multiple connecting rods connects the two lifting plates, so that the movement of the pair of lifting plates is consistent. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a first-view axial side view of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the second-view axial side structure of the present invention;
[0018] Figure 3 This is a schematic diagram of the structure of the fixing plate and fixing cylinder in this utility model;
[0019] Figure 4 This is a schematic diagram of the lifting plate and connecting rod in this utility model.
[0020] In the diagram: 1. Lower mold; 2. Upper mold; 3. Injection port; 4. Fixing plate; 5. Fixing cylinder; 6. Support rod; 7. Lifting plate; 8. Push rod; 9. Positioning plate; 10. Hydraulic push rod; 11. Support plate; 12. Support frame; 13. Groove; 14. Slot; 15. Top plate; 16. Sealing block; 17. Connecting rod. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.
[0023] Example 1: Reference Figures 1-4 The illustrated plastic part molding die for easy demolding includes a lower mold 1 and an upper mold 2. Ejector assemblies are provided on both sides of the lower mold 1. Each ejector assembly includes a support rod 6 located on the outer side of the lower mold 1, a lifting plate 7 fixedly connected to the bottom end of the support rod 6, and an ejector rod 8 fixedly connected to the top of the lifting plate 7. Fixed plates 4 are fixedly connected to both sides of the upper mold 2, and fixed cylinders 5 adapted to the support rod 6 are fixedly connected to the bottom of the fixed plates 4, facilitating the lifting of the mold during the upward movement of the upper mold 2. A support plate is fixedly connected to the outer side of the lower mold 1. 11. A hydraulic push rod 10 is fixedly connected to the bottom of the support plate 11. A positioning plate 9 is fixedly connected to the output end of the hydraulic push rod 10. The positioning plate 9 is fixedly connected to any lifting plate 7. The hydraulic push rod 10 drives the lifting plate 7 to move through the positioning plate 9. A pair of grooves 13 are opened at the bottom of the inner wall of the lower mold 1. A slot hole 14 is opened on the inner side of the inner wall of the groove 13 to facilitate the placement of the top block 15 and the sealing block 16. A top plate 15 is slidably connected to the bottom of the inner wall of the groove 13. A sealing block 16 that matches the slot hole 14 is fixedly connected to the bottom of the top plate 15.
[0024] In this embodiment, the raw material is introduced between the upper mold 2 and the lower mold 1 through the injection port 3 to form the model. The hydraulic push rod 10 is controlled to drive the positioning plate 9 and the lifting plate 7 to move. The lifting plate 7 moves upward through the support rod 6 and lifts the upper mold 2 through the fixed cylinder 5 and the fixed plate 4. After the upper mold 2 rises a certain distance, the lifting plate 7 drives the push rod 8 to move upward and lifts the model through the sealing block 16 and the top plate 15, so that the height of the upper mold 2 is always higher than that of the model, which facilitates the removal of material from the model.
[0025] Example 2: Reference Figures 1-4Based on the same concept as in Embodiment 1 above, this embodiment also proposes that the sealing block 16 is a magnetic block and the push rod 8 is magnetic, which facilitates the attraction between the push rod 8 and the sealing block 16; the inner side of the upper mold 2 is provided with a filling port 3, and the upper mold 2 is adapted to the lower mold 1; multiple support frames 12 are fixedly connected to the outer side of the lower mold 1, and multiple connecting rods 17 are fixedly connected between a pair of lifting plates 7.
[0026] In this embodiment, multiple connecting rods 17 connect a pair of lifting plates 7 to ensure that the movement of the pair of lifting plates 7 is consistent.
[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A plastic part molding die for easy demolding, comprising a lower die (1) and an upper die (2), characterized in that: Ejector components are provided on both sides of the lower mold (1); The top material assembly includes a support rod (6) disposed on the outside of the lower mold (1), a lifting plate (7) is fixedly connected to the bottom end of the support rod (6), a top rod (8) is fixedly connected to the top of the lifting plate (7), and a fixing plate (4) is fixedly connected to both sides of the upper mold (2), and a fixing cylinder (5) adapted to the support rod (6) is fixedly connected to the bottom of the fixing plate (4).
2. The plastic part molding die for easy demolding according to claim 1, characterized in that: A support plate (11) is fixedly connected to the outer side of the lower mold (1), and a hydraulic push rod (10) is fixedly connected to the bottom of the support plate (11). A positioning plate (9) is fixedly connected to the output end of the hydraulic push rod (10), and the positioning plate (9) is fixedly connected to any of the lifting plates (7).
3. A plastic part molding die for easy demolding according to claim 2, characterized in that: The bottom of the inner wall of the lower mold (1) is provided with a pair of grooves (13), and the inner side of the inner wall of the grooves (13) is provided with slots (14).
4. A plastic part molding die for easy demolding according to claim 3, characterized in that: A top plate (15) is slidably connected to the bottom of the inner wall of the groove (13), and a sealing block (16) adapted to the slot (14) is fixedly connected to the bottom of the top plate (15).
5. A plastic part molding die for easy demolding according to claim 4, characterized in that: The sealing block (16) is a magnetic block, and the top rod (8) is magnetic.
6. A plastic part molding die for easy demolding according to claim 1, characterized in that: The upper mold (2) has an injection port (3) on its inner side, and the upper mold (2) is adapted to the lower mold (1).
7. A plastic part molding die for easy demolding according to claim 1, characterized in that: Multiple support frames (12) are fixedly connected to the outer side of the lower mold (1), and multiple connecting rods (17) are fixedly connected between a pair of lifting plates (7).