Renovation of the paint level float detection system for inkjet printers
By replacing the stainless steel float ball into a magnetic ring in the inkjet level detection, and automatically adjusting the magnetic ring position using the floating component, the induction failure problem caused by the limited magnetic parts of the float ball is solved, and more reliable and accurate liquid level detection is achieved, improving the stability and maintenance efficiency of the system.
Patent Information
- Application Number
- CN202421337756.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-06-12
AI Technical Summary
In the current inkjet printer coating level detection, the magnetic parts on the stainless steel float ball are limited, which is prone to induction failure, resulting in abnormal liquid level alarms and inkjet printers that cannot work normally.
Replace the stainless steel float ball set with a conventional liquid level rod with a magnetic ring to increase the magnetic contact surface, and automatically lift and lower the position of the magnetic ring according to the liquid level height through the floating assembly to detect the liquid level.
It effectively avoids false alarms of liquid level, improves detection reliability and accuracy, provides guarantees for production operations, extends the service life of the spraying system and reduces maintenance costs.
Smart Images
Figure CN222704150U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of inkjet printers, in particular to a paint level float ball detection modification for inkjet printers. Background Art
[0002] The traditional name for coatings in China is paint. The so-called coating is applied to the surface of the object to be protected or decorated, and can form a continuous film that is firmly attached to the coated object. It is usually a viscous liquid made of resin, oil or emulsion, with or without pigments, fillers, and corresponding additives, and is prepared with organic solvents or water. It is sprayed through an inkjet printer. Generally, the paint storage tanks on inkjet printers are mostly sealed structures, which makes it difficult to observe the height of the paint liquid level in the inner cavity of the storage tank, and is not conducive to users adding paint in time. Generally, for observation by staff, a liquid level rod is usually installed in the inner cavity of the storage tank to detect the liquid level.
[0003] The working principle of the level rod is mainly based on the buoyancy mechanism. When the liquid level changes, the buoyancy will also change accordingly. The level rod uses the principle of lever to convert the lifting and lowering motion of the float (or float) into linear displacement. In this process, they convert the buoyancy change into a measurable displacement signal. Then, this displacement signal is converted into an electrical signal and converted into a standard signal output through a dedicated circuit for further processing or monitoring.
[0004] The prior art, such as publication number CN215639682U, provides a liquid level detection device for a paint bucket, including a detection bracket, a float rod, a float ball and a position sensor, wherein the float rod is vertically slidably mounted on the detection bracket, the float ball is connected to the bottom of the float rod, the float ball is used to float on the surface of the paint and drive the float rod to slide vertically as the paint level changes, and the position sensor has two signal ends, namely a signal transmitting end and a signal receiving end, the two signal ends are respectively mounted on the float rod and the detection bracket, and the position of the signal end mounted on the detection bracket corresponds to the feeding level of the paint level, so that when the paint level drops to the feeding level, the signal end on the float rod moves downward with the float rod and is aligned with the signal end on the detection bracket. The utility model is conducive to assisting the realization of the lack of material alarm function when the paint is at a low level, reducing manual operations, improving detection accuracy and detection reliability, avoiding failures caused by continued spraying under lack of material conditions, and can increase the service life of the spraying system and reduce maintenance costs.
[0005] At present, the inkjet printer paint level detection uses three small magnets welded on a stainless steel float. When detecting the paint level, abnormal level alarms often occur. The main reason is that the magnetic area on the stainless steel float is limited, and it is easy to fail to sense the liquid level rod, causing the inkjet printer to malfunction. In view of this, we propose a modification of the inkjet printer paint level float detection. Utility Model Content
[0006] The utility model aims to provide a paint level float detection modification for a printer, which solves the problem that the magnetic part on the stainless steel float is prone to regional smallness and easy to cause induction failure.
[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0008] The modification of the paint level float detection of the inkjet printer includes a detection cylinder, the inner wall of the detection cylinder is provided with a sensing mechanism, the sensing mechanism includes a liquid level rod, the liquid level rod is arranged inside the detection cylinder, the liquid level rod is connected to the top of the detection cylinder through a first flange, the bottom of the liquid level rod is connected to a limit block, the top of the liquid level rod is connected to a transmitter, the outer wall of the liquid level rod is slidably connected to a magnetic ring, the outer wall of the magnetic ring is provided with a floating assembly, and the stainless steel float provided in the conventional liquid level rod is replaced with a magnetic ring to increase the magnetic contact surface and ensure reliable detection, which can effectively avoid false alarms of the liquid level and provide protection for production operations. The position of the magnetic ring on the outer wall of the liquid level rod moves according to the position of the floating assembly floating on the liquid surface. Since the floating assembly floats on the liquid surface through buoyancy, it will drive the magnetic ring to rise and fall with the height of the liquid surface during the detection process to facilitate the inspection of the liquid level.
[0009] Preferably, the floating assembly consists of a floating plate, a cavity, and a spacer ring. The floating plate is connected to the outer wall of the magnetic ring. By arranging the floating plate around the magnetic ring, the paint in the detection tube can be prevented from adhering to the magnetic ring during use.
[0010] Preferably, the cavity is opened inside the wall of the floating plate in an annular shape. By opening the cavity in the wall of the floating plate, the buoyancy of the entire floating plate is improved to avoid the problem of buoyancy reduction due to entry into the floating plate.
[0011] Preferably, the spacer ring is connected to the top of the floating plate, and the top of the spacer ring is connected to a rubber ring. By arranging the spacer ring on the top of the floating plate, when the liquid level in the detection cylinder is close to the top, the spacer ring will press against the top of the detection cylinder, so that a cavity is formed in the floating plate to prevent the paint from entering and adhering to the magnetic ring, and the rubber ring on the top can also increase the sealing.
[0012] Preferably, a paint storage tank is provided on one side of the detection cylinder, and the top and bottom of one side of the paint storage tank are connected to the detection cylinder through connecting pipes respectively. By arranging the detection cylinder to connect to the paint storage tank, the area of the liquid surface in the detection cylinder becomes smaller and violent shaking is less likely to occur, thereby ensuring the stability of the floating plate in the detection cylinder, reducing the problem of inaccurate detection part due to liquid level fluctuations, and avoiding the problem of tilt of the floating plate connecting magnetic ring due to liquid level fluctuations.
[0013] Preferably, the connecting pipe is divided into two sections with the middle as the boundary, and the two sections are connected by a second flange. The second flange is provided to connect the connecting pipe, so as to facilitate the disassembly of the detection cylinder for maintenance or repair.
[0014] Preferably, the tube wall of the connecting tube is connected with an electromagnetic valve, and the electromagnetic valve is provided to facilitate the control of the connection tube to flow or close, so as to facilitate the subsequent disassembly of the detection cylinder after closing.
[0015] By means of the above technical solution, the utility model provides a modification of the paint level float detection of the inkjet printer. It has at least the following beneficial effects:
[0016] 1. The utility model replaces the stainless steel float ball of the conventional liquid level rod with a magnetic ring to increase the magnetic contact surface and ensure reliable detection, which can effectively avoid false alarms of liquid level and provide protection for production operations. The position of the magnetic ring on the outer wall of the liquid level rod moves according to the floating position of the floating component on the liquid surface. Since the floating component floats on the liquid surface by buoyancy, it will drive the magnetic ring to rise and fall with the height of the liquid level during the detection process to facilitate the inspection of the liquid level.
[0017] 2. The utility model connects the detection tube to the paint storage tank, thereby reducing the area of the liquid surface in the detection tube and preventing violent shaking, thereby ensuring the stability of the floating plate in the detection tube and reducing the problem of inaccurate detection due to liquid surface fluctuations. It can also avoid the problem of increased sliding friction of the magnetic ring due to the tilt of the floating plate connected to the magnetic ring caused by liquid surface fluctuations. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:
[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0020] Figure 2 For the utility model Figure 1 A magnified view of A;
[0021] Figure 3 It is a partial cross-sectional view of the detection tube in the utility model;
[0022] Figure 4 It is a partial cross-sectional view of the floating assembly in the utility model.
[0023] In the figure: 1. detection cylinder; 2. sensing mechanism; 21. liquid level rod; 22. first flange; 23. transmitter; 24. magnetic ring; 25. floating assembly; 251. floating plate; 252. cavity; 253. spacer ring; 26. limit block; 3. paint storage tank; 4. connecting pipe; 41. second flange; 42. solenoid valve. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] Example 1
[0026] Renovation of the paint level float detection of the inkjet printer, such as Figure 1 - Figure 4 As shown, it includes a detection cylinder 1, the inner wall of the detection cylinder 1 is provided with a sensing mechanism 2, the sensing mechanism 2 includes a liquid level rod 21, the liquid level rod 21 is arranged inside the detection cylinder 1, the liquid level rod 21 is connected to the top of the detection cylinder 1 through a first flange 22, the bottom of the liquid level rod 21 is connected to a limit block 26, the top of the liquid level rod 21 is connected to a transmitter 23, the outer wall of the liquid level rod 21 is slidably connected to a magnetic ring 24, the outer wall of the magnetic ring 24 is provided with a floating assembly 25, and the stainless steel float provided in the conventional liquid level rod 21 is replaced with the magnetic ring 24 to increase the magnetic contact surface and ensure reliable detection, which can effectively avoid false alarms of the liquid level and provide protection for production operations. The position of the magnetic ring 24 on the outer wall of the liquid level rod 21 moves according to the position of the floating assembly 25 floating on the liquid surface. Since the floating assembly 25 floats on the liquid surface by buoyancy, it will drive the magnetic ring 24 to rise and fall with the height of the liquid surface during the detection process to facilitate the liquid level. The inspection is carried out. The floating assembly 25 consists of a floating plate 251, a cavity 252, and a spacer ring 253. The floating plate 251 is connected to the outer wall of the magnetic ring 24. By arranging the floating plate 251 to surround the magnetic ring 24, the paint in the detection tube 1 can be prevented from adhering to the magnetic ring 24 during use. The cavity 252 is opened inside the wall of the floating plate 251 and is arranged in a ring shape. By opening the cavity 252 in the wall of the floating plate 251, the overall buoyancy of the floating plate 251 is improved to avoid the problem of buoyancy reduction due to the entry of the floating plate 251. The spacer ring 253 is connected to the top of the floating plate 251, and the top of the spacer ring 253 is connected to a rubber ring. By arranging the spacer ring 253 on the top of the floating plate 251, when the liquid level in the detection tube 1 is close to the top, the spacer ring 253 will press against the top of the detection tube 1, so that a cavity is formed in the floating plate 251 to prevent the paint from entering and adhering to the magnetic ring 24, and the rubber ring on the top can also increase the sealing.
[0027] In this embodiment, the stainless steel float provided in the conventional liquid level rod 21 is replaced with the magnetic ring 24 to increase the magnetic contact surface and ensure reliable detection, which can effectively avoid false alarms of the liquid level and provide protection for production operations. The position of the magnetic ring 24 on the outer wall of the liquid level rod 21 moves according to the floating position of the floating component 25 on the liquid surface. Since the floating component 25 floats on the liquid surface by buoyancy, it will drive the magnetic ring 24 to rise and fall with the height of the liquid surface during the detection process to facilitate the inspection of the liquid level. In addition, by arranging a float plate 251 to surround the magnetic ring 24, buoyancy can be provided while avoiding the use of paint in the detection tube 1 to adhere to the magnetic ring 24.
[0028] Example 2
[0029] like Figure 1 , Figure 2 As shown, a paint storage tank 3 is provided on one side of the detection cylinder 1, and the top and bottom of one side of the paint storage tank 3 are connected to the detection cylinder 1 through a connecting pipe 4 respectively. By setting the detection cylinder 1 to connect with the paint storage tank 3, the area of the liquid surface in the detection cylinder 1 becomes smaller, and violent shaking is not easy to occur, so as to ensure the stability of the float 251 in the detection cylinder 1, so as to reduce the problem of inaccurate detection part caused by liquid level fluctuation, and also avoid the problem of tilt of the floating plate 251 connecting the magnetic ring 24 due to liquid level fluctuation. The connecting pipe 4 is divided into two sections with the middle as the boundary, and the two sections are connected by a second flange 41. The connecting pipe 4 is connected by setting the second flange 41 to facilitate the disassembly of the detection cylinder 1 for maintenance or repair. The tube wall of the connecting pipe 4 is connected with an electromagnetic valve 42. The electromagnetic valve 42 is set to facilitate the control of the connection pipe 4 to flow or close, so as to facilitate the subsequent disassembly of the detection cylinder 1 after closing.
[0030] In this embodiment, by setting the detection tube 1 to be connected to the paint storage tank 3, the area of the liquid surface in the detection tube 1 is reduced and violent shaking is not easy to occur, so as to ensure the stability of the float 251 in the detection tube 1, reduce the problem of inaccurate detection part due to liquid level fluctuation, and also avoid the problem of tilt of the float 251 connecting the magnetic ring 24 due to liquid level fluctuation. By setting the second flange 41 to connect the connecting pipe 4, it is convenient to disassemble the detection tube 1 for maintenance or repair.
[0031] When the paint level float ball detection modification of the inkjet printer of the utility model is used, the stainless steel float ball provided in the conventional liquid level rod 21 is replaced with the magnetic ring 24 to increase the magnetic contact surface and ensure reliable detection, which can effectively avoid false alarms of the liquid level and provide protection for production operations. The position of the magnetic ring 24 on the outer wall of the liquid level rod 21 moves according to the floating position of the floating component 25 on the liquid surface. Since the floating component 25 floats on the liquid surface by buoyancy, it will drive the magnetic ring 24 to rise and fall with the height of the liquid surface during the detection process, so as to facilitate the inspection of the liquid level, and by setting the float plate 251 ring By wrapping around the magnetic ring 24, buoyancy can be provided while preventing the paint in the detection tube 1 from adhering to the magnetic ring 24. By setting the detection tube 1 to be connected to the paint storage tank 3, the area of the liquid surface in the detection tube 1 becomes smaller, and violent shaking is less likely to occur, so as to ensure the stability of the float 251 in the detection tube 1, thereby reducing the problem of inaccurate detection part due to liquid level fluctuations, and also avoiding the problem of tilting of the connection between the float 251 and the magnetic ring 24 due to liquid level fluctuations. By setting a second flange 41 to connect the connecting pipe 4, it is convenient to disassemble the detection tube 1 for maintenance or repair.
[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. The modification of the paint level float detection of the inkjet printer includes a detection cylinder (1), which is characterized by: The inner wall of the detection cylinder (1) is provided with a sensing mechanism (2), the sensing mechanism (2) comprising a liquid level rod (21), the liquid level rod (21) being provided inside the detection cylinder (1), the liquid level rod (21) being connected to the top of the detection cylinder (1) via a first flange (22), the bottom of the liquid level rod (21) being connected to a limit block (26), the top of the liquid level rod (21) being connected to a transmitter (23), the outer wall of the liquid level rod (21) being slidably connected to a magnetic ring (24), the outer wall of the magnetic ring (24) being provided with a floating assembly (25).
2. The modification of the coating level float ball detection of the inkjet printer according to claim 1 is characterized by: The floating assembly (25) comprises a floating plate (251), a cavity (252), and a spacer ring (253); the floating plate (251) is connected to the outer wall of the magnetic ring (24).
3. The paint level float detection modification of the inkjet printer according to claim 2 is characterized by: The cavity (252) is opened inside the wall of the floating plate (251) and is arranged in an annular shape.
4. The modification of the coating level float detection of the inkjet printer according to claim 3 is characterized by: The spacer ring (253) is connected to the top of the floating plate (251), and a rubber ring is connected to the top of the spacer ring (253).
5. The paint level float detection modification of the inkjet printer according to claim 1 is characterized by: A paint storage tank (3) is provided on one side of the detection cylinder (1), and the top and the bottom of one side of the paint storage tank (3) are connected to the detection cylinder (1) via connecting pipes (4) respectively.
6. The modification of the coating level float detection of the inkjet printer according to claim 5 is characterized by: The connecting pipe (4) is divided into two sections with the middle as the boundary, and the two sections are connected via a second flange (41).
7. The modification of the coating level float detection of the inkjet printer according to claim 6 is characterized by: The tube wall of the connecting tube (4) is connected to a solenoid valve (42).