Material pressing machine based on vacuum negative pressure principle
The design of the press based on the principle of vacuum negative pressure solves the problem of bubble formation when discharging high-viscosity colloids, achieving stable discharge and precise pressure control, thereby improving product quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI TENGHU BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional material presses mechanically compress high-viscosity colloids, causing air bubbles to get into the colloid, disrupting the molecular arrangement, reducing product density and quality stability, and resulting in low discharge efficiency and inability to precisely adjust the pressure gradient.
The material press, based on the principle of vacuum negative pressure, uses a rotating shaft conveying section and an extrusion section, combined with a vacuum sealing and lifting mechanism, to create a negative pressure environment using a vacuum pump, ensuring stable material conveying and extrusion and preventing the formation of air bubbles.
It achieves stable discharge of high-viscosity colloids, improves product density and quality uniformity, shortens the production cycle, reduces labor and time costs, and ensures precise control of pressure gradient.
Smart Images

Figure CN224256022U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pressing machine technology, and in particular to a pressing machine based on the principle of vacuum negative pressure. Background Technology
[0002] As a powerful tool in the production of high-viscosity colloidal materials, the material press plays a crucial role in improving output efficiency and ensuring product stability. High-viscosity colloids have poor flowability, and conventional output methods are difficult to meet production rhythms. The material press, driven by strong pressure, can quickly squeeze the material out of the storage container, greatly improving output efficiency. In the production of sealants, stable output can ensure that the composition ratio of each batch of products is consistent, thereby improving the stability and uniformity of product quality.
[0003] Traditional pressing machines use mechanical pressure to extrude colloids from containers. However, when discharging high-viscosity colloids, mechanical extrusion causes air bubbles to be mixed into the colloid. These air bubbles disrupt the original tightly ordered molecular arrangement of the colloid, resulting in voids inside the product, reducing its overall density, weakening its physical properties, and causing unevenness and pores on the product surface, which greatly affects the product's appearance. When the colloid has poor flowability, repeated pressurization is required, extending the production cycle. The low discharge efficiency increases the company's time and labor costs. Furthermore, the inability to accurately adjust the pressure gradient leads to uneven internal structure of the finished product. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a material press based on the principle of vacuum negative pressure, which aims to improve the problem in the prior art where mechanical extrusion during the discharge of high-viscosity colloids causes air bubbles to be mixed into the colloid, which disrupts the original tight and orderly molecular arrangement of the colloid, resulting in voids inside the product and reducing the overall density of the product.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a pressing machine based on the principle of vacuum negative pressure, comprising a shell, wherein multiple rotating shafts are rotatably connected to the inner wall of the shell, a conveying section is provided in the middle of the rotating shaft, a pressing section is provided at one end of the rotating shaft, a gear is fixedly connected to the other end of the rotating shaft, a mounting platform is provided on the left side of the shell, a motor is fixedly connected to the top of the mounting platform, the output end of the motor is fixedly connected to one end of the rotating shaft, a feed inlet is provided on the top surface of the shell, and a lifting mechanism is provided on the outer wall of the shell, the lifting mechanism being used for vacuum sealing.
[0006] The above technical solution involves: multiple rotating shafts rotatably connected to the inner wall of the outer casing; a conveying section is located in the middle of the rotating shaft for conveying materials; a pressing section is located at one end of the rotating shaft to press the materials; a gear is fixedly connected to the other end of the rotating shaft to drive its rotation; a mounting platform is located on the left side of the outer casing; a motor is fixedly connected to the top of the mounting platform, and the output end of the motor is fixedly connected to one end of the rotating shaft to ensure stable operation of the device; and a feed inlet is located on the top surface of the outer casing.
[0007] As a further description of the above technical solution:
[0008] The lifting mechanism includes a threaded rod, the bottom surface of which is fixedly connected to the top surface of the outer casing. A guide groove is provided on the outer wall of the threaded rod, and a threaded sleeve is threadedly connected to the outer wall of the threaded rod. A mounting plate is rotatably connected to the bottom surface of the threaded sleeve, and a vacuum cover is fixedly connected to the other end of the mounting plate. A pipe is connected to the top of the vacuum cover, and a vacuum pump is provided at the other end of the pipe.
[0009] The above technical solution involves: the bottom surface of the threaded rod being fixedly connected to the top surface of the outer shell; a guide groove being provided on the outer wall of the threaded rod, which serves as a guide during the operation of the threaded rod; a threaded sleeve being threadedly connected to the outer wall of the threaded rod; the bottom surface of the threaded sleeve being rotatably connected to the mounting plate; and a vacuum hood being fixedly connected to the other end of the mounting plate. The vacuum hood is a key component for creating a negative pressure environment. A pipe is connected to the top of the vacuum hood, and a vacuum pump is installed at the other end of the pipe. The function of the vacuum pump is to provide a vacuum environment.
[0010] As a further description of the above technical solution:
[0011] A bracket is provided on the bottom surface of the outer shell, and an installation edge is fixedly connected to the inner wall of the feed inlet.
[0012] The above technical solution involves a support bracket on the bottom surface of the outer casing to provide additional stability and support, and an installation edge fixedly connected to the inner wall of the feed inlet to ensure the firmness and durability of the feed inlet.
[0013] As a further description of the above technical solution:
[0014] The outer wall of the mounting platform is equipped with a control box, and the outer wall of the control box is equipped with operation buttons.
[0015] The above technical solution involves a control box installed on the outer wall of the mounting platform, with operating buttons on the outer wall of the control box, allowing for easy operation and settings.
[0016] As a further description of the above technical solution:
[0017] The outer wall of the housing is provided with a mounting groove, and a telescopic rod is fixedly connected to the inner wall of the mounting groove. A locking block is fixedly connected to the other end of the telescopic rod.
[0018] The above technical solution involves an installation groove on the outer wall of the casing, a telescopic rod fixedly connected to the inner wall of the installation groove, and a locking block fixedly connected to the other end of the telescopic rod, ensuring safety during use.
[0019] As a further description of the above technical solution:
[0020] A sealing gasket is fixedly connected to the top surface of the outer casing, and a limit block is fixedly connected to the top surface of the threaded rod.
[0021] The above technical solution involves a fixed connection between the top surface of the outer casing and the sealing gasket to ensure the sealing performance of the equipment, and a limit block fixedly connected to the top surface of the threaded rod to effectively limit the movement range of the threaded sleeve during equipment operation.
[0022] As a further description of the above technical solution:
[0023] The outer wall of the vacuum chamber is provided with an observation window, and a fixing sleeve is fixedly connected to the top surface of the mounting plate. The top surface of the fixing sleeve is rotatably connected to the bottom surface of the threaded sleeve.
[0024] The above technical solution involves a specially designed observation window on the outer wall of the vacuum chamber, allowing for direct monitoring of the internal condition. A fixed sleeve is fixedly connected to the top surface of the mounting plate, and the top surface of the fixed sleeve is rotatably connected to the bottom surface of the threaded sleeve, allowing the threaded sleeve to rotate freely and thus achieving precise adjustment.
[0025] As a further description of the above technical solution:
[0026] The top surface of the mounting plate is fixedly connected to a second motor, and the output end of the motor is fixedly connected to a second gear.
[0027] Through the above technical solution: a second motor is fixedly connected to the top surface of the mounting plate, and a second gear is fixedly connected to the output end of the second motor to drive the operation of the equipment.
[0028] This utility model has the following beneficial effects:
[0029] 1. In this utility model, the material enters the outer shell through the feed port. The motor is started and drives the rotating shaft to rotate. The gear on the outer wall of the rotating shaft makes the two rotating shafts rotate synchronously. The conveying section continuously conveys the material to the extrusion section. The material is pushed forward along the rotating shaft by the rotation of the rotating shaft, ensuring that the material can move forward stably. The pitch between the extrusion sections gradually decreases and the thread depth becomes shallower. The material is subjected to higher pressure and shear force in the conveying section, which further compresses the material. Finally, the material is squeezed out from the discharge port.
[0030] 2. In this utility model, when the second motor is started, the second motor drives the second gear to rotate, and the second gear drives the threaded sleeve to rotate. The inner wall of the threaded sleeve is threadedly connected to the outer wall of the threaded rod, so that the threaded sleeve moves along the axis of the guide groove. The outer wall of the threaded rod is also provided with a guide groove, which guides the direction of movement of the mounting plate, so that the mounting plate automatically turns after rising, allowing material to be added into the feed port. One end of the mounting plate is fixed with a vacuum cover, and the top of the mounting plate is connected to a vacuum pump through a pipe. When the mounting plate descends and presses the bottom of the vacuum cover tightly with the sealing gasket, the gas inside the outer shell can be fully released. Attached Figure Description
[0031] Figure 1 This is a front perspective view of a material press based on the principle of vacuum negative pressure proposed in this utility model;
[0032] Figure 2 This is a partial structural exploded view of a material press based on the principle of vacuum negative pressure proposed in this utility model;
[0033] Figure 3 This is a partial structural diagram of a material press based on the principle of vacuum negative pressure proposed in this utility model;
[0034] Figure 4 This is a partial structural exploded view of a material press based on the principle of vacuum negative pressure proposed in this utility model;
[0035] Figure 5 This is a partial structural diagram of a pressing machine based on the principle of vacuum negative pressure proposed in this utility model.
[0036] Legend:
[0037] 1. Outer shell; 2. Lifting mechanism; 201. Vacuum hood; 202. Threaded rod; 203. Threaded sleeve; 204. Guide groove; 205. Mounting plate; 206. Pipeline; 207. Vacuum pump; 3. Rotating shaft; 4. Conveying section; 5. Extrusion section; 6. Gear 1; 7. Mounting platform; 8. Motor 1; 9. Feed inlet; 10. Bracket; 11. Control box; 12. Operating button; 13. Limit block; 14. Motor 2; 15. Fixing sleeve; 16. Gear 2; 17. Telescopic rod; 18. Locking block; 19. Mounting groove; 20. Mounting edge; 21. Sealing gasket; 22. Observation window. Detailed Implementation
[0038] 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.
[0039] Please see the appendix Figure 1 - Appendix Figure 3 The present invention provides an embodiment of a material press based on the principle of vacuum negative pressure, comprising a housing 1, a plurality of rotating shafts 3 rotatably connected to the inner wall of the housing 1, a conveying section 4 provided in the middle of the rotating shafts 3, a pressing section 5 provided at one end of the rotating shafts 3, a gear 6 fixedly connected to the other end of the rotating shafts 3, a mounting platform 7 provided on the left side of the housing 1, a motor 8 fixedly connected to the top of the mounting platform 7, the output end of the motor 8 fixedly connected to one end of the rotating shafts 3, a feed inlet 9 provided on the top surface of the housing 1, and a lifting mechanism 2 provided on the outer wall of the housing 1 for vacuum sealing;
[0040] Specifically, multiple rotating shafts 3 are rotatably connected to the inner wall of the outer casing 1. A conveying section 4 is set in the middle of the rotating shaft 3 for conveying materials. A pressing section 5 is set at one end of the rotating shaft 3 to press the materials. A gear 6 is fixedly connected to the other end of the rotating shaft 3 to drive the rotation of the rotating shaft 3. A mounting platform 7 is set on the left side of the outer casing 1. A motor 8 is fixedly connected to the top of the mounting platform 7. The output end of the motor 8 is fixedly connected to one end of the rotating shaft 3 to ensure the stable operation of the device. A feed inlet 9 is set on the top surface of the outer casing 1.
[0041] Please see the appendix Figure 4 - Appendix Figure 5 The lifting mechanism 2 includes a threaded rod 202, the bottom surface of which is fixedly connected to the top surface of the outer casing 1. The outer wall of the threaded rod 202 is provided with a guide groove 204. The outer wall of the threaded rod 202 is threadedly connected with a threaded sleeve 203. The bottom surface of the threaded sleeve 203 is rotatably connected to a mounting plate 205. The other end of the mounting plate 205 is fixedly connected to a vacuum cover 201. The top of the vacuum cover 201 is connected to a pipe 206. The other end of the pipe 206 is provided with a vacuum pump 207.
[0042] Specifically, the bottom surface of the threaded rod 202 is fixedly connected to the top surface of the outer casing 1. The outer wall of the threaded rod 202 is provided with a guide groove 204, which plays a guiding role during the operation of the threaded rod 202. A threaded sleeve 203 is threadedly connected to the outer wall of the threaded rod 202. The bottom surface of the threaded sleeve 203 is rotatably connected to the mounting plate 205. The other end of the mounting plate 205 is fixedly connected to a vacuum hood 201. The vacuum hood 201 is a key component for creating a negative pressure environment. The top of the vacuum hood 201 is connected to a pipe 206. The other end of the pipe 206 is provided with a vacuum pump 207, which provides a vacuum environment.
[0043] Please see the appendix Figure 1 - Appendix Figure 3 The bottom surface of the outer shell 1 is provided with a bracket 10, the inner wall of the feed inlet 9 is fixedly connected with an installation edge 20, the outer wall of the mounting platform 7 is provided with a control box 11, the outer wall of the control box 11 is provided with an operation button 12, the outer wall of the outer shell 1 is provided with an installation groove 19, the inner wall of the installation groove 19 is fixedly connected with a telescopic rod 17, and the other end of the telescopic rod 17 is fixedly connected with a locking block 18.
[0044] Specifically, a bracket 10 is provided on the bottom surface of the outer casing 1 to provide additional stability and support. An installation edge 20 is fixedly connected to the inner wall of the feed inlet 9 to ensure the firmness and durability of the feed inlet 9. A control box 11 is provided on the outer wall of the mounting platform 7, and an operation button 12 is provided on the outer wall of the control box 11 to make it easy to perform various operation settings. An installation groove 19 is opened on the outer wall of the outer casing 1, and a telescopic rod 17 is fixedly connected to the inner wall of the installation groove 19. A locking block 18 is fixedly connected to the other end of the telescopic rod 17 to ensure safety during use.
[0045] Please see the appendix Figure 3 - Appendix Figure 5 A sealing gasket 21 is fixedly connected to the top surface of the outer shell 1, a limit block 13 is fixedly connected to the top surface of the threaded rod 202, an observation window 22 is provided on the outer wall of the vacuum cover 201, a fixing sleeve 15 is fixedly connected to the top surface of the mounting plate 205, the top surface of the fixing sleeve 15 is rotatably connected to the bottom surface of the threaded sleeve 203, a second motor 14 is fixedly connected to the top surface of the mounting plate 205, and a second gear 16 is fixedly connected to the output end of the second motor 14.
[0046] Specifically, the top surface of the outer casing 1 is fixedly connected to the sealing gasket 21 to ensure the sealing performance of the equipment. The top surface of the threaded rod 202 is fixedly connected to the limiting block 13 to effectively limit the movement range of the threaded sleeve 203 during equipment operation. The outer wall of the vacuum cover 201 is specially provided with an observation window 22 so that the internal status can be monitored intuitively. The top surface of the mounting plate 205 is fixedly connected to the fixing sleeve 15, and the top surface of the fixing sleeve 15 is rotatably connected to the bottom surface of the threaded sleeve 203, so that the threaded sleeve 203 can rotate freely, thereby realizing the precise adjustment function. The top surface of the mounting plate 205 is fixedly connected to the second motor 14, and the output end of the second motor 14 is fixedly connected to the second gear 16 to drive the operation of the equipment.
[0047] Working principle: Material enters the outer shell 1 through the feed port 9. Motor 8 is started, which drives the rotating shaft 3 to rotate. The gear 6 on the outer wall of the rotating shaft 3 makes the two rotating shafts 3 rotate synchronously. The conveying section 4 continuously conveys the material to the extrusion section 5. The material is pushed forward along the rotating shaft 3 by the rotation of the rotating shaft 3, ensuring that the material can move forward stably. The pitch between the extrusion sections 5 gradually decreases and the thread depth becomes shallower. The material is subjected to higher pressure and shear force in the conveying section 4, which further compresses the material. Finally, the material is extruded from the discharge port.
[0048] When motor 14 is started, it drives gear 16 to rotate, which in turn drives threaded sleeve 203 to rotate. The inner wall of threaded sleeve 203 is threadedly connected to the outer wall of threaded rod 202, causing threaded sleeve 203 to move along the axis of guide groove 204. The outer wall of threaded rod 202 is also provided with guide groove 204, which guides the direction of movement of mounting plate 205, so that mounting plate 205 automatically turns after rising, allowing material to be added into feed port 9. Vacuum cover 201 is fixed to one end of mounting plate 205, and the top of mounting plate 205 is connected to vacuum pump 207 through pipe 206. When mounting plate 205 descends and presses the bottom of vacuum cover 201 against sealing gasket 21, the gas inside the outer shell 1 can be fully released.
[0049] 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 pressing machine based on the principle of vacuum negative pressure, comprising a shell (1), characterized in that: The inner wall of the outer shell (1) is rotatably connected to multiple rotating shafts (3). A conveying section (4) is provided in the middle of the rotating shaft (3). A pressing section (5) is provided at one end of the rotating shaft (3). A gear (6) is fixedly connected to the other end of the rotating shaft (3). An installation platform (7) is provided on the left side of the outer shell (1). A motor (8) is fixedly connected to the top of the installation platform (7). The output end of the motor (8) is fixedly connected to one end of the rotating shaft (3). A feed inlet (9) is provided on the top surface of the outer shell (1). A lifting mechanism (2) is provided on the outer wall of the outer shell (1). The lifting mechanism (2) is used for vacuum sealing.
2. The pressing machine based on the principle of vacuum negative pressure according to claim 1, characterized in that: The lifting mechanism (2) includes a threaded rod (202), the bottom surface of which is fixedly connected to the top surface of the outer shell (1), the outer wall of which is provided with a guide groove (204), the outer wall of which is threadedly connected with a threaded sleeve (203), the bottom surface of which is rotatably connected with a mounting plate (205), the other end of which is fixedly connected with a vacuum hood (201), the top of which is connected with a pipe (206), and the other end of which is provided with a vacuum pump (207).
3. A pressing machine based on the principle of vacuum negative pressure according to claim 1, characterized in that: The bottom surface of the outer shell (1) is provided with a bracket (10), and the inner wall of the feed inlet (9) is fixedly connected with an installation edge (20).
4. A pressing machine based on the principle of vacuum negative pressure according to claim 1, characterized in that: The outer wall of the mounting platform (7) is provided with a control box (11), and the outer wall of the control box (11) is provided with an operation button (12).
5. A pressing machine based on the principle of vacuum negative pressure according to claim 1, characterized in that: The outer wall of the outer shell (1) is provided with an installation groove (19), and a telescopic rod (17) is fixedly connected to the inner wall of the installation groove (19). A locking block (18) is fixedly connected to the other end of the telescopic rod (17).
6. A pressing machine based on the principle of vacuum negative pressure according to claim 2, characterized in that: A sealing gasket (21) is fixedly connected to the top surface of the outer shell (1), and a limiting block (13) is fixedly connected to the top surface of the threaded rod (202).
7. A pressing machine based on the principle of vacuum negative pressure according to claim 2, characterized in that: The outer wall of the vacuum hood (201) is provided with an observation window (22), and the top surface of the mounting plate (205) is fixedly connected with a fixing sleeve (15), and the top surface of the fixing sleeve (15) is rotatably connected to the bottom surface of the threaded sleeve (203).
8. A pressing machine based on the principle of vacuum negative pressure according to claim 2, characterized in that: The top surface of the mounting plate (205) is fixedly connected to a motor (14), and the output end of the motor (14) is fixedly connected to a gear (16).