Plastic tape molding apparatus
By introducing an electric push rod and a limiting block into the molding device, the problem of positional displacement of the plastic strip during the molding process was solved, achieving precise positioning and efficient demolding, thus improving the quality of finished products and processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PINGYANG RUFANG PLASTIC PRODUCTS CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-08-04
AI Technical Summary
Existing molding equipment cannot adjust the limiting mechanism when processing plastic strips, which makes the plastic strips prone to positional displacement during the molding process, affecting the quality of the finished product.
A plastic strip molding device was designed, comprising a support frame, an electric push rod, and limit blocks. The position of the upper pressure plate is controlled by the electric push rod, and the spacing of the limit blocks is adjusted by the sliding block. Combined with the design of the limit frame and the telescopic plate, the device achieves precise positioning of the plastic strip and assists in demolding.
It effectively avoids the plastic strip shifting during the molding process, improves the quality of the finished product, and improves processing efficiency by using an electric push rod to assist in demolding.
Smart Images
Figure CN224588433U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of workpiece processing technology, specifically to a plastic strip molding device. Background Technology
[0002] Compression molding, also known as press molding, is a plastic processing (and rubber processing) method that uses heat and pressure to shape plastic or rubber materials into finished products within a closed mold cavity. Generally, powdered, granular, agglomerated, or sheet-like preforms, or even pre-shaped blanks similar to the desired product, are placed in the heated mold cavity. The mold is then closed and pressure is applied to shape and cure or vulcanize the material. The finished product is then obtained after demolding (see figure). This method is particularly suitable for molding thermosetting plastics (see thermosetting resins). Its disadvantages include long production cycles, low efficiency, and poor dimensional accuracy of the finished products.
[0003] Existing molding devices on the market generally place the raw material inside the mold cavity, heat it to melt the part to fit the shape of the mold cavity, and then remove it after cooling, thus completing the molding operation. However, in actual use, the width of the plastic strips to be processed varies greatly. If the limiting mechanism of the plastic strip cannot be adjusted, the part may shift in position inside the molding cavity during the molding process, affecting the actual quality of the finished product. Therefore, we have proposed a plastic strip molding device. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a plastic strip molding device, which solves the problem that in actual use, the width of the plastic strips to be processed varies greatly. If the limiting mechanism of the plastic strip cannot be adjusted, the processed part may shift in position inside the molding cavity during the molding process, affecting the quality of the actual finished product.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0006] A plastic strip molding device includes a support frame with a through hole on its top surface. A fixed box is fixedly installed on the top surface of the support frame. A first electric push rod is housed inside the fixed box. An upper pressure plate is installed inside the support frame. A first connecting pipe is fixedly installed on the top surface of the upper pressure plate. The output end of the first electric push rod is fixedly installed together with the first connecting pipe through the through hole on the top surface of the support frame. A sliding frame is fixedly installed on the top surface of the first connecting pipe. Two sliding blocks are provided on the outer wall of the sliding frame. A limit block is fixedly installed on the bottom surface of the sliding block. A first threaded hole is opened on the top surface of the sliding block. A first bolt is threaded into the first threaded hole. The sliding block is engaged with the outer wall of the sliding frame by the first bolt.
[0007] Preferably, a contact groove is provided on one side of the limiting block, and a rubber pad is fixedly installed inside the contact groove.
[0008] Preferably, the support frame has two second threaded holes on both sides, a lower pressure plate is provided inside the support frame, a connecting plate is fixedly installed on both sides of the lower pressure plate, a third threaded hole is provided on one side of the connecting plate, a second bolt is threaded into the third threaded hole, the lower pressure plate is fixedly installed inside the support frame through the second threaded hole, the third threaded hole and the second bolt, a slot is provided on both sides of the lower pressure plate, a contact plate is provided inside the lower pressure plate, a snap-fit block is fixedly installed on both sides of the contact plate, and the contact plate is snapped into the inside of the lower pressure plate through the snap-fit block.
[0009] Preferably, a base is fixedly installed on the bottom surface of the support frame, a placement groove is formed on the top surface of the base, a second electric push rod is sleeved inside the placement groove, a top plate is fixedly installed inside the placement groove, the top plate is located on the top surface of the second electric push rod, and a through hole is formed on the top surface of the top plate.
[0010] Preferably, the bottom surface of the lower pressure plate has a through hole, the top surface of the contact plate has a through hole, a telescopic plate is provided inside the through hole, and a second connecting pipe is fixedly installed on the bottom surface of the telescopic plate. The second connecting pipe is fixedly installed together with the telescopic end of the second electric push rod through the through hole starting from the bottom surface of the lower pressure plate.
[0011] Preferably, a limiting frame is fixedly installed on the bottom surface of the contact plate, the limiting frame is aligned with the lower pressure plate, a heat insulation plate is fixedly installed on the top surface of the telescopic plate, and a heating plate is fixedly installed on the top surface of the heat insulation plate.
[0012] In summary, the present invention has the following main advantages:
[0013] 1. By setting the first electric push rod, it can serve as a driving device for the upper pressure plate. The position of the upper pressure plate is controlled by the telescopic end of the first electric push rod. Through the design of the sliding block, when it is necessary to change the position of the two sliding blocks, the first bolt can be loosened to adjust the distance between the two sliding blocks. After adjustment, the first bolt can be tightened to lock the sliding blocks. By changing the position of the sliding block, the distance between the limiting blocks can be adjusted to a smaller size, and the position of the plastic strip entering the device can be limited, effectively preventing the plastic strip from deviating and affecting the actual quality of the finished product.
[0014] 2. By setting a second electric push rod, it can serve as a drive device for the demolding device. After the plastic strip is processed, the second electric push rod can push the demolding device to assist in demolding difficult-to-demold parts, ensuring the highest processing efficiency. Through the design of the telescopic plate, the second connecting pipe on its bottom surface and the telescopic end of the second electric push rod are fixedly installed together, which can control the specific position of the telescopic plate, thereby realizing the assisted demolding of the parts on the top surface of the contact plate. Through the design of the limit frame, the movement trajectory of the telescopic plate can be guided, avoiding deviation during the movement of the telescopic plate, which would prevent the assisted demolding from being completed normally. Through the design of the heating plate, the heating plate is a commercially available structure that can heat and melt the parts, facilitating the shaping of the parts. Through the design of the heat insulation plate, the telescopic plate can be protected, reducing damage to the telescopic plate during the heating process and avoiding unnecessary losses. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0016] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the lower pressure plate structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the support frame structure of this utility model.
[0019] Reference numerals: 1. Support frame; 2. Fixing box; 3. First electric push rod; 4. Upper pressure plate; 5. First connecting pipe; 6. Sliding frame; 7. Sliding block; 8. Limiting block; 9. First threaded hole; 10. First bolt; 11. Contact groove; 12. Rubber pad; 13. Second threaded hole; 14. Lower pressure plate; 15. Connecting plate; 16. Third threaded hole; 17. Second bolt; 18. Contact plate; 19. Snap-fit block; 20. Base; 21. Placement groove; 22. Second electric push rod; 23. Top plate; 24. Through hole; 25. Telescopic plate; 26. Second connecting pipe; 27. Limiting frame; 28. Heat insulation plate; 29. Heating plate. Detailed Implementation
[0020] 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.
[0021] refer to Figures 1-4 A plastic strip molding device includes a support frame 1. A through hole is provided on the top surface of the support frame 1. A fixed box 2 is fixedly installed on the top surface of the support frame 1. A first electric push rod 3 is housed inside the fixed box 2. An upper pressure plate 4 is provided inside the support frame 1. A first connecting pipe 5 is fixedly installed on the top surface of the upper pressure plate 4. The output end of the first electric push rod 3 is fixedly installed together with the first connecting pipe 5 through the through hole on the top surface of the support frame 1. A sliding frame 6 is fixedly installed on the top surface of the first connecting pipe 5. Two sliding blocks 7 are provided on the outer wall of the sliding frame 6. A limit block 8 is fixedly installed on the bottom surface of the sliding block 7. A first threaded hole 9 is provided on the top surface of the sliding block 7. A first threaded connection is threaded into the first threaded hole 9. Bolt 10 and sliding block 7 are fastened to the outer wall of sliding frame 6 by the first bolt 10. The design of the first electric push rod 3 can serve as the driving device for the upper pressure plate 4. The position of the upper pressure plate 4 is controlled by the telescopic end of the first electric push rod 3. The design of the sliding block 7 allows the first bolt 10 to be loosened to adjust the distance between the two sliding blocks 7 when the positions of the two sliding blocks 7 need to be changed. After adjustment, the first bolt 10 is tightened to lock the sliding block 7. By changing the position of the sliding block 7, the distance between the limiting blocks 8 can be adjusted to a smaller size, and the position of the plastic strip entering the device can be limited, effectively preventing the plastic strip from shifting and affecting the actual quality of the finished product.
[0022] A contact groove 11 is provided on one side of the limiting block 8. A rubber pad 12 is fixedly installed inside the contact groove 11. The design of the rubber pad 12 can reduce the friction between the plastic strip and the limiting block 8, reduce the heat generated by friction, and prevent the plastic strip from breaking and causing unnecessary losses. Two second threaded holes 13 are provided on both sides of the support frame 1. A lower pressure plate 14 is provided inside the support frame 1. Through the design of the lower pressure plate 14, its fixed position and the contact plate 18 fixed inside it can serve as a lower limiting pivot for the workpiece, limiting the workpiece at a certain fixed height, so that the lower pressure plate 14 and the upper pressure plate 4 can form a pressing relationship to shape the plastic strip. Connecting plates 15 are fixedly installed on both sides of the lower pressure plate 14. A third threaded hole 16 is provided on one side of the connecting plate 15. A second bolt 17 is threaded into the third threaded hole 16. The lower pressure plate 14 is fixedly installed inside the support frame 1 through the second threaded hole 13, the third threaded hole 16, and the second bolt 17. Slots are provided on both sides of the lower pressure plate 14. A contact plate 18 is provided inside the lower pressure plate 14. A snap-fit block 19 is fixedly installed on both sides of the contact plate 18. The contact plate 18 is snapped into the lower pressure plate 14 through the snap-fit block 19. This design of the contact plate 18, where it is snapped into the lower pressure plate 14 through the snap-fit block 19, allows for easy disassembly of the contact plate 18, facilitating replacement and cleaning of partially melted plastic adhering to the contact plate 18. A base 20 is fixedly installed on the bottom surface of the frame 1. A placement groove 21 is formed on the top surface of the base 20. A second electric push rod 22 is fitted inside the placement groove 21. The second electric push rod 22 serves as a drive device for the demolding device. After the plastic strip is processed, the second electric push rod 22 can push the demolding device to assist in demolding difficult-to-demold parts, ensuring maximum processing efficiency. A top plate 23 is fixedly installed inside the placement groove 21. The top plate 23 is located on the top surface of the second electric push rod 22. A through hole is formed on the top surface of the top plate 23. A through hole is formed on the bottom surface of the lower pressure plate 14. A through hole 24 is formed on the top surface of the contact plate 18. A telescopic plate 25 is installed inside the through hole 24. The telescopic plate 25 is designed to allow the bottom surface of the contact plate 18 to... The second connecting pipe 26 and the telescopic end of the second electric push rod 22 are fixedly installed together, which can control the specific position of the telescopic plate 25, thereby realizing the auxiliary demolding of the top surface of the contact plate 18. The second connecting pipe 26 is fixedly installed on the bottom surface of the telescopic plate 25. The second connecting pipe 26 is fixedly installed together with the telescopic end of the second electric push rod 22 through a through hole starting from the bottom surface of the lower pressure plate 14. The bottom surface of the contact plate 18 is fixedly installed with a limit frame 27, which is aligned with the lower pressure plate 14. Through the design of the limit frame 27, the movement trajectory of the telescopic plate 25 can be guided to avoid the telescopic plate 25 from deviating during movement, which would prevent the auxiliary demolding from being completed normally. The top surface of the telescopic plate 25 is fixedly installed with a heat insulation plate 28.The design of the heat insulation plate 28 protects the telescopic plate 25, reducing damage and unnecessary losses during the heating process. A heating plate 29 is fixedly installed on the top surface of the heat insulation plate 28. The heating plate 29, a commercially available structure, can heat and melt the workpiece, facilitating its shaping.
[0023] 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 device for moulding plastic strips comprising a support frame (1), characterised in that, The support frame (1) has a through hole on its top surface. A fixed box (2) is fixedly installed on the top surface of the support frame (1). A first electric push rod (3) is sleeved inside the fixed box (2). An upper pressure plate (4) is provided inside the support frame (1). A first connecting pipe (5) is fixedly installed on the top surface of the upper pressure plate (4). The output end of the first electric push rod (3) is fixedly installed together with the first connecting pipe (5) through the through hole on the top surface of the support frame (1). A sliding frame (6) is fixedly installed on the top surface of the first connecting pipe (5). Two sliding blocks (7) are provided on the outer wall of the sliding frame (6). A limit block (8) is fixedly installed on the bottom surface of the sliding block (7). A first threaded hole (9) is provided on the top surface of the sliding block (7). A first bolt (10) is threadedly connected inside the first threaded hole (9). The sliding block (7) is snapped onto the outer wall of the sliding frame (6) by the first bolt (10).
2. The plastic tape molding apparatus of claim 1 wherein, A contact groove (11) is provided on one side of the limiting block (8), and a rubber pad (12) is fixedly installed inside the contact groove (11).
3. The plastic tape molding apparatus of claim 1 wherein, The support frame (1) has two second threaded holes (13) on both sides. The support frame (1) has a lower pressure plate (14) inside. The lower pressure plate (14) has a connecting plate (15) fixedly installed on both sides. The connecting plate (15) has a third threaded hole (16) on one side. The third threaded hole (16) is threaded with a second bolt (17). The lower pressure plate (14) is fixedly installed inside the support frame (1) through the second threaded hole (13), the third threaded hole (16) and the second bolt (17). The lower pressure plate (14) has a slot on both sides. The lower pressure plate (14) has a contact plate (18) inside. The contact plate (18) has a snap-fit block (19) fixedly installed on both sides. The contact plate (18) is snapped into the lower pressure plate (14) through the snap-fit block (19).
4. The plastic tape molding apparatus of claim 3 wherein, The support frame (1) has a base (20) fixedly installed on its bottom surface. The base (20) has a placement groove (21) on its top surface. The placement groove (21) is fitted with a second electric push rod (22). The placement groove (21) has a top plate (23) fixedly installed inside its interior. The top plate (23) is located on the top surface of the second electric push rod (22). The top surface of the top plate (23) has a through hole.
5. The plastic tape molding apparatus of claim 4 wherein, The bottom surface of the lower pressure plate (14) is provided with a through hole, and the top surface of the contact plate (18) is provided with a through hole (24). A telescopic plate (25) is provided inside the through hole (24), and a second connecting pipe (26) is fixedly installed on the bottom surface of the telescopic plate (25). The second connecting pipe (26) is fixedly installed together with the telescopic end of the second electric push rod (22) through the through hole starting from the bottom surface of the lower pressure plate (14).
6. The plastic tape stamping device of claim 5, wherein, A limiting frame (27) is fixedly installed on the bottom surface of the contact plate (18), the limiting frame (27) is aligned with the lower pressure plate (14), a heat insulation plate (28) is fixedly installed on the top surface of the telescopic plate (25), and a heating plate (29) is fixedly installed on the top surface of the heat insulation plate (28).