Forming structure of positive and negative pressure all-in-one machine
By incorporating a two-way lead screw and hand crank design, along with guide holes and fixing pins, the problem of requiring multiple operators for mold fixing in existing technologies has been solved. This enables single-person quick installation and disassembly, as well as efficient cooling, thus improving the ease of operation and stability of the positive and negative pressure integrated machine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN SUMIDA PLASTICS CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-08
AI Technical Summary
The existing positive and negative pressure integrated machine requires multiple people to work together to disassemble and replace the fixed mold, which is inconvenient and has poor practicality.
The system employs a two-way lead screw and handwheel in conjunction with a positioning plate to enable quick single-person installation and disassembly of the mold. The design of guide holes and fixing pins simplifies the operation process. At the same time, a cooling water tank and sealing structure are set up to ensure cooling effect and sealing performance.
It enables a single person to quickly complete the installation and disassembly of the mold, improves the ease of operation and stability, enhances the cooling and molding effect, and increases practicality.
Smart Images

Figure CN224210530U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of positive and negative pressure integrated machine technology, specifically, to a molding structure for a positive and negative pressure integrated machine. Background Technology
[0002] The positive and negative pressure integrated machine, also known as a thermoplastic molding machine, is a machine that uses heated and plasticized thermoplastic plastic rolls such as PVC, PE, PP, PET, and HIPS to form various shapes of high-end packaging boxes, frames, and other products. The main process is to heat the plastic sheet (board) material, and then use molds, vacuum, or pressure to deform the sheet (board) material to achieve the required shape and size. With the help of supporting processes, the application purpose is achieved.
[0003] The prior art discloses a molding structure for a positive and negative pressure integrated machine, application number CN202222479796.6. This utility model allows for the installation and fixation of the fixed mold using multiple sets of fixing blocks and fixing grooves, facilitating subsequent disassembly and replacement. However, while the pull-out operation is simple, disassembly requires pulling four operating levers simultaneously, necessitating multiple workers to operate concurrently. This makes disassembly and replacement of the fixed mold along with the molding cavity inconvenient, resulting in limited practicality. To address the shortcomings of this utility model, those skilled in the art have proposed a molding structure for a positive and negative pressure integrated machine. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a molding structure for an integrated positive and negative pressure machine, which has the advantages of facilitating quick and easy installation or disassembly and replacement of the fixed mold by a single worker, making operation simpler and more convenient, improving installation stability, and enhancing practicality, thereby solving the problems mentioned in the background technology.
[0005] To achieve the advantages of facilitating quick and easy installation or disassembly of the fixed mold by a single worker, simplifying operation, improving installation stability, and enhancing practicality, the specific technical solution adopted by this utility model is as follows: A molding structure of a positive and negative pressure integrated machine includes a molding structure body, positioning plates, a fixed mold, and a moving mold. A fixed base is fixedly installed on the bottom surface of the molding structure body, and a mounting shaft is installed on one side of the top surface of the fixed base. A bidirectional lead screw is installed on the mounting shaft. Lead screw sleeves are symmetrically fixedly installed on one end of the two positioning plates, and the lead screw sleeves cooperate with the bidirectional lead screws. A cooling water tank is fixedly installed at the bottom of the inner cavity of the molding structure body. The fixed mold is placed on top of the cooling water tank, and a molding cavity is fixedly installed inside the fixed mold. A moving mold is provided above the molding structure body, and a molding module is fixedly installed on the bottom surface of the moving mold. Several guide holes are symmetrically opened on both side walls of the molding structure body. Fixing holes are symmetrically opened on both side walls of the fixed mold. Several fixing pins are symmetrically fixedly installed on the opposite side walls of the two positioning plates, and the fixing pins are inserted into the guide holes.
[0006] Furthermore, a hand crank is fixedly connected to one end of the bidirectional lead screw.
[0007] Furthermore, a water-proof sealing groove is provided on the top surface of the cooling water tank, and a water-proof sealing ring is fixedly installed on the bottom surface of the fixed mold, and the water-proof sealing ring is embedded in the water-proof sealing groove. A water inlet pipe is connected to one side of the inner cavity of the cooling water tank, and a water outlet pipe is connected to the other side of the inner cavity of the cooling water tank.
[0008] Furthermore, the fixed mold has a lower sealing groove on its top surface and an upper sealing groove on its bottom surface. The upper sealing groove has a symmetrical mounting through hole on its top surface, and a connecting rod is sleeved in the mounting through hole. A connecting plate is fixedly installed on the top of the connecting rod. A spring is installed between the bottom surface of the connecting plate and the top surface of the moving mold. A sealing frame is fixedly connected to the bottom end of the connecting rod, and a lower sealing gasket is fixedly installed on the bottom surface of the sealing frame. An upper sealing gasket is fixedly installed on the top surface of the sealing frame.
[0009] Furthermore, the cross-sectional shape of the sealing frame is a U-shape.
[0010] Furthermore, the molding cavity and the molding module are of corresponding sizes.
[0011] Compared with the prior art, this utility model provides a molding structure for an integrated positive and negative pressure machine, which has the following beneficial effects:
[0012] (1) This utility model is provided with a molding structure main body, a positioning plate, a fixed mold and a moving mold. The bottom surface of the molding structure main body is fixedly installed with a fixed base, and a mounting shaft is installed on one side of the top surface of the fixed base. A double-acting screw is installed on the mounting shaft. A hand crank is fixedly connected to one end of the double-acting screw. Screw sleeves are symmetrically fixedly installed on one end of the two positioning plates, and the screw sleeves cooperate with the double-acting screw. A cooling water tank is fixedly installed at the bottom of the inner cavity of the molding structure main body. During installation, the user can place the fixed mold on the top of the cooling water tank. A molding cavity is fixedly installed inside the fixed mold. A moving mold is provided above the molding structure main body, and a molding module corresponding to the molding cavity is fixedly installed on the bottom surface of the moving mold. On the other hand, the molding structure... The main body has several guide holes symmetrically opened on both sides of the side wall, while the fixed mold has several fixing holes symmetrically opened on both sides of the side wall. Several fixing pins are symmetrically fixed on the two positioning plates on opposite sides of the side wall, and the fixing pins are inserted into the guide holes. Therefore, after the worker places the fixed mold, he can drive the double-sided screw to rotate by hand crank. As the double-sided screw rotates, it can drive the two positioning plates to move relative to each other along the guide holes until the fixing pins are inserted into the fixing holes. The fixed mold and the molding cavity can then be fixedly installed on the main body of the molding structure. By reversing the above steps, the fixed mold can be removed from the inner cavity of the molding structure for replacement. This makes it easy for a single worker to quickly complete the installation or removal and replacement of the fixed mold. The operation is simpler and more convenient, the installation stability is higher, and the practicality is stronger.
[0013] (2) This utility model is provided with a cooling water tank, a molding cavity, and a molding module. The top surface of the cooling water tank is provided with a water-proof sealing groove, and a water-proof sealing ring is fixedly installed on the bottom surface of the fixed mold. The water-proof sealing ring is embedded in the water-proof sealing groove to ensure the sealing of the cooling water tank for subsequent use. The top surface of the fixed mold is provided with a lower sealing groove, and the bottom surface of the moving mold is provided with an upper sealing groove. The top surface of the upper sealing groove is symmetrically provided with a mounting through hole, and a connecting rod is sleeved in the mounting through hole. A connecting plate is fixedly installed on the top of the connecting rod. A spring is installed between the bottom surface of the connecting plate and the top surface of the moving mold. A sealing frame is fixedly connected to the bottom of the connecting rod, and a lower sealing gasket is fixedly installed on the bottom surface of the sealing frame, while an upper sealing gasket is fixedly installed on the top surface of the sealing frame. When the moving mold and the fixed mold are closed, the sealing frame can be fitted into the lower sealing groove and the upper sealing groove to ensure the sealing of the molding cavity and the molding module during operation. On the other hand, a water inlet pipe is connected to one side of the inner cavity of the cooling water tank, and a water outlet pipe is connected to the other side of the inner cavity of the cooling water tank. After the workpiece is formed, the worker can introduce cooling water into the inner cavity of the cooling water tank through the water inlet pipe to achieve water bath cooling of the molding cavity, resulting in better cooling and molding effect and stronger practicality. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the molding structure of a positive and negative pressure integrated machine according to an embodiment of the present utility model;
[0016] Figure 2 This is a top view of the molding structure of a positive and negative pressure integrated machine according to an embodiment of the present utility model;
[0017] Figure 3 According to the embodiments of this utility model Figure 1 Enlarged view of point A;
[0018] Figure 4 According to the embodiments of this utility model Figure 1 Enlarged view of point B;
[0019] Figure 5 This is a perspective view of the positioning plate of a molding structure of a positive and negative pressure integrated machine according to an embodiment of the present utility model.
[0020] In the picture:
[0021] 1. Fixed base; 2. Main molding structure; 3. Cooling water tank; 4. Molding cavity; 5. Fixed mold; 6. Water outlet pipe; 7. Mounting shaft bracket; 8. Water inlet pipe; 9. Hand crank; 10. Moving mold; 11. Sealing frame; 12. Connecting plate; 13. Molding module; 14. Positioning plate; 15. Fixing pin; 16. Two-way lead screw; 17. Lower sealing groove; 18. Lead screw sleeve; 19. Guide through hole; 20. Fixing hole; 21. Waterproof sealing groove; 22. Waterproof sealing ring; 23. Upper sealing groove; 24. Mounting through hole; 25. Connecting rod; 26. Spring; 27. Lower sealing gasket; 28. Upper sealing gasket. Detailed Implementation
[0022] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.
[0023] According to an embodiment of the present invention, a molding structure for an integrated positive and negative pressure machine is provided.
[0024] The present utility model will be further described in conjunction with the accompanying drawings and specific embodiments. As Figure 1-5 shown, a forming structure of a positive and negative pressure integrated machine according to an embodiment of the present utility model includes a forming structure main body 2, a positioning plate 14, a fixed mold 5, and a moving mold 10. A fixed base 1 is fixedly installed on the bottom surface of the forming structure main body 2, and a mounting shaft frame 7 is installed on one side of the top surface of the fixed base 1. A bidirectional lead screw 16 is installed on the mounting shaft frame 7. One end of each of the two positioning plates 14 is symmetrically and fixedly installed with a lead screw sleeve 18, and the lead screw sleeve 18 is matched with the bidirectional lead screw 16. A cooling water tank 3 is fixedly installed at the bottom of the inner cavity of the forming structure main body 2. The fixed mold 5 is placed on the top of the cold water tank, and a forming cavity 4 is fixedly installed in the fixed mold 5. A moving mold 10 is arranged above the forming structure main body 2, and a forming module 13 is fixedly installed on the bottom surface of the moving mold 10. A plurality of guiding through holes 19 are symmetrically formed in the side walls on both sides of the forming structure main body 2. Fixed holes 20 are symmetrically formed in the side walls on both sides of the fixed mold 5. A plurality of fixing pins 15 are symmetrically and fixedly installed on the side walls of the opposite sides of the two positioning plates 14, and the fixing pins 15 are inserted into the guiding through holes 19, which facilitates a worker to quickly complete the installation or disassembly and replacement of the fixed mold 5 alone, the operation is simpler and more convenient, the installation stability is higher, and the practicability is stronger.
[0025] In one embodiment, a hand crank wheel 9 is fixedly connected and installed at one end of the bidirectional lead screw 16, which facilitates a user to adjust and rotate the bidirectional lead screw 16.
[0026] Furthermore, a water isolation sealing groove 21 is formed on the top surface of the cooling water tank 3. A water isolation sealing ring 22 is fixedly installed on the bottom surface of the fixed mold 5, and the water isolation sealing ring 22 is clamped in the water isolation sealing groove 21. A water inlet pipe 8 is connected and communicated with one side of the inner cavity of the cooling water tank 3, and a water outlet pipe 6 is installed and communicated with the other side of the inner cavity of the cooling water tank 3, which realizes the water bath cooling of the forming cavity 4, the cooling forming effect is better, and the practicability is stronger.
[0027] In one embodiment, a lower sealing groove 17 is formed on the top surface of the fixed mold 5, and an upper sealing groove 23 is formed on the bottom surface of the moving mold 10. Mounting through holes 24 are symmetrically formed on the top surface of the upper sealing groove 23, and a connecting rod 25 is sleeved in the mounting through holes 24. A connecting plate 12 is fixedly installed at the top end of the connecting rod 25. A spring 26 is installed between the bottom surface of the connecting plate 12 and the top surface of the moving mold 10. The bottom end of the connecting rod 25 is fixedly connected and installed with a sealing frame 11, and a lower sealing pad 27 is fixedly installed on the bottom surface of the sealing frame 11, and an upper sealing pad 28 is fixedly installed on the top surface of the sealing frame 11. When the moving mold 10 and the fixed mold 5 are closed, the sealing frame 11 can be clamped and installed in the lower sealing groove 17 and the upper sealing groove 23 to ensure the sealing performance when the forming cavity 4 and the forming module 13 work.
[0028] In one embodiment, the cross-sectional shape of the sealing frame 11 is a return shape.
[0029] In one embodiment, the molding cavity 4 and the molding module 13 are of corresponding sizes.
[0030] Working principle: This utility model is provided with a molding structure body 2, positioning plates 14, a fixed mold 5, and a moving mold 10. A fixed base 1 is fixedly installed on the bottom surface of the molding structure body 2, and a mounting bracket 7 is installed on one side of the top surface of the fixed base 1. A double-acting screw 16 is installed on the mounting bracket 7. A hand crank 9 is fixedly connected to one end of the double-acting screw 16. Screw sleeves 18 are symmetrically fixedly installed on one end of the two positioning plates 14, and the screw sleeves 18 cooperate with the double-acting screw 16. A cooling water tank 3 is fixedly installed at the bottom of the inner cavity of the molding structure body 2. During installation, the user can place the fixed mold 5 on top of the cooling water tank. A molding cavity 4 is fixedly installed inside the fixed mold 5. The moving mold 10 is set above the molding structure body 2, and the bottom surface of the moving mold 10 is... A molding module 13 corresponding to the molding cavity 4 is fixedly installed. On the other hand, the molding structure body 2 has several guide holes 19 symmetrically opened on both side walls, and the fixed mold 5 has fixed holes 20 symmetrically opened on both side walls. Several fixing pins 15 are symmetrically fixedly installed on one side wall of the two positioning plates 14, and the fixing pins 15 are inserted into the guide holes 19. Therefore, after the worker places the fixed mold 5, he can drive the double-acting screw 16 to rotate through the hand crank 9. As the double-acting screw 16 rotates, it can drive the two positioning plates 14 to move relative to each other along the guide holes 19 until the fixing pins 15 are inserted into the fixing holes 20. The fixed mold 5 and the molding cavity 4 can then be fixedly installed on the molding structure body 2. The fixed mold 5 can be removed from the molding structure body by reversing the above steps. The inner cavity of the main body 2 can be removed for replacement, making it easier for a single worker to quickly install or disassemble the fixed mold 5. This makes operation simpler and more convenient, improves installation stability, and enhances practicality. Furthermore, this utility model includes a cooling water tank 3, a molding cavity 4, and a molding module 13. The top surface of the cooling water tank 3 has a water-proof sealing groove 21, while the bottom surface of the fixed mold 5 is fixedly equipped with a water-proof sealing ring 22, which is embedded in the water-proof sealing groove 21, ensuring the sealing of the cooling water tank 3 for subsequent use. The top surface of the fixed mold 5 has a lower sealing groove 17, while the bottom surface of the moving mold 10 has an upper sealing groove 23. The top surface of the upper sealing groove 23 has symmetrically formed mounting through holes 24, and a connecting rod 25 is sleeved within the mounting through hole 24, connecting... A connecting plate 12 is fixedly installed at the top of the rod 25. A spring 26 is installed between the bottom surface of the connecting plate 12 and the top surface of the moving mold 10. A sealing frame 11 is fixedly connected to the bottom of the connecting rod 25, and a lower sealing gasket 27 is fixedly installed on the bottom surface of the sealing frame 11, while an upper sealing gasket 28 is fixedly installed on the top surface of the sealing frame 11. When the moving mold 10 and the fixed mold 5 are closed, the sealing frame 11 can be fitted into the lower sealing groove 17 and the upper sealing groove 23 to ensure the sealing of the molding cavity 4 and the molding module 13 during operation. On the other hand, a water inlet pipe 8 is connected to one side of the inner cavity of the cooling water tank 3, and a water outlet pipe 6 is connected to the other side of the inner cavity of the cooling water tank 3. After the workpiece is formed, the worker can introduce cooling water into the inner cavity of the cooling water tank 3 through the water inlet pipe 8.A water bath cooling system is implemented for molding cavity 4, resulting in better cooling and molding effects and enhanced practicality.
[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 molding structure for a positive and negative pressure integrated machine, comprising a molding structure body (2), a positioning plate (14), a fixed mold (5), and a moving mold (10), characterized in that, The bottom surface of the main body (2) of the molding structure is fixedly mounted with a fixed base (1), and a mounting bracket (7) is mounted on one side of the top surface of the fixed base (1). A two-way lead screw (16) is mounted on the mounting bracket (7). A lead screw sleeve (18) is symmetrically fixedly mounted on one end of the two positioning plates (14), and the lead screw sleeve (18) cooperates with the two-way lead screw (16). A cooling water tank (3) is fixedly mounted at the bottom of the inner cavity of the main body (2). The fixed mold (5) is placed on the top of the cooling water tank. The molding cavity (4) is fixedly installed inside. A moving mold (10) is provided above the main body of the molding structure (2), and a molding module (13) is fixedly installed on the bottom surface of the moving mold (10). Several guide holes (19) are symmetrically opened on both sides of the main body of the molding structure (2). Fixing holes (20) are symmetrically opened on both sides of the fixed mold (5). Several fixing pins (15) are symmetrically fixedly installed on one side of the two positioning plates (14), and the fixing pins (15) are inserted into the guide holes (19).
2. The molding structure of the positive and negative pressure integrated machine according to claim 1, characterized in that, A hand crank (9) is fixedly connected to one end of the bidirectional lead screw (16).
3. The molding structure of the positive and negative pressure integrated machine according to claim 1, characterized in that, The top surface of the cooling water tank (3) is provided with a water-proof sealing groove (21), and the bottom surface of the fixed mold (5) is fixedly installed with a water-proof sealing ring (22), and the water-proof sealing ring (22) is embedded in the water-proof sealing groove (21). One side of the inner cavity of the cooling water tank (3) is connected to a water inlet pipe (8), and the other side of the inner cavity of the cooling water tank (3) is connected to a water outlet pipe (6).
4. The molding structure of the positive and negative pressure integrated machine according to claim 1, characterized in that, The fixed mold (5) has a lower sealing groove (17) on its top surface and the moving mold (10) has an upper sealing groove (23) on its bottom surface. The upper sealing groove (23) has a mounting through hole (24) symmetrically on its top surface. A connecting rod (25) is sleeved in the mounting through hole (24). A connecting plate (12) is fixedly installed at the top of the connecting rod (25). A spring (26) is installed between the bottom surface of the connecting plate (12) and the top surface of the moving mold (10). A sealing frame (11) is fixedly connected to the bottom end of the connecting rod (25). A lower sealing gasket (27) is fixedly installed on the bottom surface of the sealing frame (11). An upper sealing gasket (28) is fixedly installed on the top surface of the sealing frame (11).
5. The molding structure of the positive and negative pressure integrated machine according to claim 4, characterized in that, The cross-sectional shape of the sealing frame (11) is a U-shape.
6. The molding structure of the positive and negative pressure integrated machine according to claim 1, characterized in that, The molding cavity (4) and the molding module (13) are of corresponding sizes.
Citation Information
Patent Citations
Forming structure of positive and negative pressure all-in-one machine
CN219095875U