Improved vacuum defoaming device
By combining a vacuum assembly and a dual-stroke piston pump, the problems of residue and air bubble retention at the bottom of the glue tank in traditional pressure plate pump glue supply are solved, realizing the full utilization and stable supply of glue, reducing costs and improving product yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU KEWEISHENG FLUID CONTROL TECHNOLOGY CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-01
AI Technical Summary
When using a traditional pressure plate pump to supply glue, a large amount of glue remains at the bottom of the glue tank, which is difficult to use. The glue is viscous and contains air bubbles, which cannot be completely discharged, resulting in waste and unstable glue supply.
The system employs a combination of vacuum components and a dual-stroke piston pump, along with a liquid level sensor and observation window, to achieve real-time monitoring and air bubble removal of the adhesive. Combined with a precision-engineered stirring motor and heating unit, it ensures a stable supply of adhesive.
It achieves full utilization of adhesive, reduces waste, provides a stable adhesive supply process, improves product yield and equipment reliability, and reduces adhesive costs.
Smart Images

Figure CN224180302U_ABST
Abstract
Description
Improved vacuum degassing device Technical Field
[0001] This utility model relates to the field of degassing device technology, specifically to an improved vacuum degassing device. Background Technology
[0002] Traditional pressure plate pumps are a common feeding method in the field of fluid control (especially for industrial materials such as glues, sealants, and adhesives). They are mainly used to press glue (or similar high-viscosity fluids) out of glue tanks and send them into the glue application system.
[0003] Traditional pressure plate pumps for dispensing adhesive have structural limitations. The pressure plate is usually pressed down by gravity or air pressure, but the bottom of the container is curved, so it cannot be completely squeezed out. The adhesive is not used up to the bottom, and a large amount of adhesive remains in the container that is difficult to use. The adhesive is viscous and contains bubbles. The bubbles are compressed or trapped at the pump outlet and have difficulty rising to the pump outlet, further increasing the residue. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this utility model provides an improved vacuum degassing device, which solves the structural limitations of traditional pressure plate pump glue supply. The pressure plate is usually pressed down by gravity or air pressure, but the bottom of the bucket is curved, making it impossible to completely press out the glue. The glue is not used up to the bottom, and a large amount of glue remains in the bucket that is difficult to use. The glue is viscous and contains bubbles, and the bubbles are compressed or trapped at the pump outlet, making it difficult to rise to the pump outlet, further increasing the problem of residue.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an improved vacuum degassing device, comprising:
[0006] A frame, on one side of which a vacuum pump is fixedly connected via a support plate, a rubber bucket is fixedly connected to the inner wall of the frame, a support plate is fixedly connected to the inner wall of the frame, and a universal brake wheel is fixedly connected to the bottom of the frame.
[0007] A vacuum assembly, one side of which is fixedly connected to the top of the glue tank, is used to perform a vacuuming operation on the glue in the device.
[0008] A piston pump control assembly, one side of which is fixedly connected to the bottom of the inner wall of the frame, is used to pump the glue in the device using a double-stroke piston pump.
[0009] Preferably, the empty component includes a liquid level sensor disposed on the top of the glue tank, a vacuum control system disposed on the top of the glue tank, a reflux control valve disposed on one side of the top of the glue tank, a vacuum release filter device connected to one side of the top of the glue tank, and a vacuum sensor disposed on one side of the top of the glue tank.
[0010] Preferably, a glue-adding valve is provided on one side of the top of the glue bucket, a glue supply pipeline is connected to one side of the glue bucket, and a precision stirring motor is fixedly connected to the top of the glue bucket by a bracket.
[0011] Preferably, the top of the glue bucket is provided with an observation window, and the bottom of the glue bucket is provided with a dual-pump discharge valve.
[0012] Preferably, the piston pump control assembly includes a pneumatic control module for the equipment that is fixedly connected to the top of the pallet, and a piston pump cylinder system is fixedly connected to one side of the frame surface.
[0013] Preferably, a piston pump filling cup is fixedly connected to the top of the piston pump cylinder system, a pump body heating unit is fixedly connected to the top of the piston pump cylinder system, and a piston pump glue supply system is provided on the top of the piston pump cylinder system.
[0014] This invention provides an improved vacuum degassing device. Compared with the prior art, it has the following advantages:
[0015] 1. This improved vacuum degassing device utilizes a vacuum component setup. The vacuum process is monitored in real time by vacuum and liquid level sensors, and an observation window is provided for manual observation. Combined with a precision-engineered stirring motor and its auxiliary stirring mechanism, it can completely remove air bubbles from the adhesive. After vacuum degassing, it can stably supply adhesive with low air content and smooth adhesive flow. The pump body has no dead corners, avoiding residue and significant cost waste. A pump heating unit is also included, making it suitable for high-viscosity fluids. The device can operate stably and deliver precise metered amounts. The dual-stroke piston pump, combined with the bottom adhesive extraction structure, can almost completely utilize the adhesive, significantly reducing the adhesive cost per unit product.
[0016] 2. This improved vacuum degassing device utilizes a piston pump control assembly. The dual-stroke piston pump employs two pump chambers that alternately supply glue, with one chamber drawing in glue and the other discharging it. This allows for continuous glue supply with virtually no pulsation or interruption. The precision-machined pump chambers combined with servo drive control provide highly consistent and repeatable quantitative output. It can be used with a drum changing system and bottom glue extraction to utilize all the glue, ensuring the reliability of the device during use. This significantly improves product yield and reduces glue waste, making it an ideal solution to replace traditional pressure plate pump systems. Attached Figure Description
[0017] Figure 1 is a three-dimensional schematic diagram of this utility model;
[0018] Figure 2 is a side view of this utility model;
[0019] Figure 3 is a schematic diagram of the vacuum assembly of this utility model;
[0020] Figure 4 is a schematic diagram of the piston pump control assembly of this utility model.
[0021] In the diagram: 1. Frame; 2. Vacuum pump; 3. Glue tank; 4. Pallet; 5. Universal brake wheel; 6. Vacuum assembly; 61. Liquid level sensor; 62. Vacuum control system; 63. Return flow control valve; 64. Vacuum release filter; 65. Vacuum sensor; 66. Glue adding valve; 67. Glue supply pipeline; 68. Precision mixing motor; 69. Observation window; 610. Dual pump discharge valve; 7. Piston pump control assembly; 71. Equipment pneumatic control module; 72. Piston pump cylinder system; 73. Piston pump oil cup; 74. Pump body heating unit; 75. Piston pump glue supply system. Detailed Implementation
[0022] 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.
[0023] Please refer to Figures 1-4. This utility model provides two technical solutions:
[0024] Example 1: An improved vacuum degassing device, comprising:
[0025] A frame 1 is provided. A vacuum pump 2 is fixedly connected to one side of the frame 1 via a support plate. Two vacuum pumps 2 are provided for independent control of the glue tank 3. A glue tank 3 is fixedly connected to the inner wall of the frame 1. The bottom of the inner wall of the glue tank 3 is arc-shaped. There are two glue tanks 3. A support plate 4 is fixedly connected to the inner wall of the frame 1. A universal brake wheel 5 is fixedly connected to the bottom of the frame 1.
[0026] Vacuum assembly 6, one side of which is fixedly connected to the top of glue tank 3, is used to perform vacuuming operation on the glue in the device.
[0027] The piston pump control assembly 7 is fixedly connected to the bottom of the inner wall of the frame 1 on one side. The piston pump control assembly 7 is used to pump the glue in the device using a double-stroke piston pump. With the setting of the vacuum assembly 6, the vacuum process is monitored in real time by the vacuum sensor 65 and the liquid level sensor 61, and an observation window 69 is provided for manual observation. At the same time, with the precision stirring motor 68 and its auxiliary stirring mechanism, the air bubbles in the glue can be completely removed. After vacuum degassing, the glue can be supplied stably with low air content and smooth glue flow. There are no dead corners inside the pump body, avoiding residue and significant cost waste. At the same time, a pump body heating unit 74 is set up to accommodate high viscosity fluids. The device can work stably and deliver high-precision quantitative pumping. The double-stroke piston pump combined with the bottom glue extraction structure can almost use up all the glue, significantly reducing the glue cost per unit product.
[0028] Example 2 differs from Example 1 primarily in that it features an improved vacuum degassing device. The vacuum component 6 includes a liquid level sensor 61 mounted on the top of the glue tank 3. The liquid level sensor 61 monitors the liquid level in real time and effectively prevents false detections caused by glue splashing during stirring. The liquid level sensor 61 model includes, but is not limited to, LFH-0115M or 8185. A vacuum control system 62 is mounted on the top of the glue tank 3, and a reflux control valve 63 is mounted on one side of the top of the glue tank 3. The reflux control valve 63 controls the backflow of glue, effectively preventing glue sedimentation. A vacuum release filter 64 is connected to one side of the top of the glue tank 3, effectively preventing air from entering the tank. Moisture entering the barrel causes crystallization. A vacuum sensor 65 is installed on one side of the top of the glue barrel 3. The vacuum sensor 65 detects the vacuum inside the barrel in real time and controls the start and stop of the vacuum pump. The vacuum sensor 65 model includes, but is not limited to, ZSE20B-01-22 or VCP100. A glue adding valve 66 is installed on one side of the top of the glue barrel 3, which can manually or automatically control the equipment to add glue by using the vacuum inside the barrel to suck up the material. A glue supply pipeline 67 is connected to one side of the glue barrel 3. A precision stirring motor 68 is fixedly connected to the top of the glue barrel 3 by a bracket. The precision stirring motor 68 has a built-in reducer and can operate stably for a long time. A stirrer with a circular shape is installed at the bottom of the output shaft of the precision stirring motor 68. The arc shape fits the bottom of the inner wall of the glue tank 3, effectively preventing sedimentation during stirring. An observation window 69 with an LED ring light is located on the top of the glue tank 3. A dual-pump discharge valve 610 is located at the bottom of the glue tank 3. The piston pump control assembly 7 includes a pneumatic control module 71 fixedly connected to the top of the tray 4. A piston pump cylinder system 72 is fixedly connected to one side of the frame 1. A piston pump lubrication cup 73 is fixedly connected to the top of the piston pump cylinder system 72, effectively lubricating the piston and increasing the service life of moving parts. A pump body heating unit 74 is fixedly connected to the top of the piston pump cylinder system 72. The top of 72 is equipped with a piston pump glue supply system 75. The two pumps in the piston pump glue supply system 75 work alternately to achieve uninterrupted glue supply. With the setting of the piston pump control component 7, the dual-stroke piston pump uses two pump chambers to supply glue alternately. By using the two pump chambers to work alternately, one pumping glue and the other discharging glue, it can achieve continuous glue supply with almost no pulsation and no interruption. The combination of precision-machined pump chambers and servo drive control can provide highly consistent and repeatable quantitative output. It can be used with a drum changing system and bottom glue extraction to use up all the glue, ensuring the reliability of the device during use. It can greatly improve product yield and reduce glue waste, making it an ideal solution to replace the traditional pressure plate pump system.
[0029] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0030] During operation, sufficient glue is added to the glue tank 3 in the frame 1 through the glue adding valve 66. The glue level sensor 61 is used to set the glue adding level and performs a low level alarm function. The backflow control valve 63 activates the fine stirring motor 68 to stir the glue and remove as many air bubbles as possible. The vacuum pump 2 corresponding to the glue tank 3 is activated, and the vacuum sensor 65 is read. When the vacuum level reaches 2-5 mbar, air bubbles in the glue are effectively removed. The vacuum filter device 64 prevents moisture from entering the equipment. The pneumatic control module 71 activates the piston pump glue supply system 75, enabling ultra-low vacuum operation for more stable glue supply. The pump body heating unit 74 is activated, providing comprehensive heating to the pump body and pipelines, effectively reducing glue viscosity. Sufficient lubricating oil is added to the piston pump oil cup 73 to ensure piston lubrication and extend the service life of moving parts. Glue is drawn directly from the bottom of the glue tank 3 via the piston pump control component 7, and the vacuum system and the curved glue tank 3 work together to completely remove the glue. When the device is no longer in use, it is restored to its original state.
[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0032] 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. An improved vacuum degassing device, characterized in that, include: A frame (1) is fixedly connected to a vacuum pump (2) via a support plate on one side of the frame (1), a glue tank (3) is fixedly connected to the inner wall of the frame (1), a support plate (4) is fixedly connected to the inner wall of the frame (1), and a universal brake wheel (5) is fixedly connected to the bottom of the frame (1); a vacuum assembly (6) is fixedly connected to the top of the glue tank (3) on one side, and the vacuum assembly (6) is used to perform vacuuming operation on the glue in the device; a piston pump control assembly (7) is fixedly connected to the bottom of the inner wall of the frame (1) on one side, and the piston pump control assembly (7) is used to pump the glue in the device out using a double-stroke piston pump.
2. The improved vacuum degassing device according to claim 1, characterized in that: The vacuum assembly (6) includes a liquid level sensor (61) disposed on the top of the glue tank (3), a vacuum control system (62) disposed on the top of the glue tank (3), a reflux control valve (63) disposed on one side of the top of the glue tank (3), a vacuum release filter device (64) connected to one side of the top of the glue tank (3), and a vacuum sensor (65) disposed on one side of the top of the glue tank (3).
3. The improved vacuum degassing device according to claim 1, characterized in that: A glue-adding valve (66) is provided on one side of the top of the glue tank (3), a glue supply pipeline (67) is connected to one side of the glue tank (3), and a fine grinding and stirring motor (68) is fixedly connected to the top of the glue tank (3) by a bracket.
4. The improved vacuum degassing device according to claim 1, characterized in that: The top of the glue tank (3) is provided with an observation window (69), and the bottom of the glue tank (3) is provided with a double pump discharge valve (610).
5. The improved vacuum degassing device according to claim 1, characterized in that: The piston pump control assembly (7) includes a pneumatic control module (71) fixedly connected to the top of the tray (4), and a piston pump cylinder system (72) is fixedly connected to one side of the surface of the frame (1).
6. The improved vacuum degassing device according to claim 5, characterized in that: The piston pump cylinder system (72) is fixedly connected to the top of the piston pump oil cup (73), the piston pump cylinder system (72) is fixedly connected to the top of the pump body heating unit (74), and the piston pump glue supply system (75) is provided on the top of the piston pump cylinder system (72).