Grinding and cleaning all-in-one machine
By integrating grinding, cleaning, and drying functions into a single grinding and cleaning machine, the problems of large footprint and low efficiency caused by the separation of steel plate processing steps in traditional PCB board production have been solved. This has enabled highly efficient automated processing and improved the stability and consistency of product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-29
- Publication Date
- 2026-04-03
AI Technical Summary
In traditional PCB manufacturing, the grinding, cleaning, and drying processes of the steel plate are completed by separate equipment, resulting in problems such as large footprint, cumbersome processes, low work efficiency, and long cycle time.
Design a grinding and cleaning integrated machine that integrates grinding, cleaning and drying functions, including a grinding mechanism and a cleaning and drying mechanism, and achieve automated processing by using grinding roller group and water spray, cold air and high pressure air knife components.
It significantly reduces the floor space required, ensures stable steel plate processing, enables continuous automated operation, reduces labor costs, and improves the stability and consistency of product quality.
Smart Images
Figure CN121777009A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of PCB manufacturing technology, and in particular to an integrated grinding and cleaning machine. Background Technology
[0002] A PCB, also known as a printed circuit board, is an important electronic component. It serves as a support for electronic components and is responsible for connecting these components to each other.
[0003] Steel plates are used in the PCB production process, and if the steel plates are not polished and cleaned properly, the quality will be affected. In traditional reflow lines, the polishing, cleaning and drying of steel plates are usually completed by independent equipment, which not only occupies a large area, but also has problems such as complicated procedures, low work efficiency and long cycle time.
[0004] To address the aforementioned issues, this application discloses an integrated grinding and cleaning machine. Summary of the Invention
[0005] To overcome the shortcomings of the existing technology, this invention discloses an integrated grinding and cleaning machine.
[0006] To achieve the above objectives, the technical solution adopted by the present invention is: a grinding and cleaning integrated machine, comprising:
[0007] A grinding mechanism, comprising a first housing, a first conveying roller group disposed within the first housing for conveying steel plates, a coarse grinding roller group disposed within the first housing at the front section of the first conveying roller group for coarse grinding of the steel plates, a fine grinding roller group disposed within the first housing at the middle section of the first conveying roller group for fine grinding of the steel plates, two swing drive components disposed outside the first housing for driving the coarse grinding roller group and the fine grinding roller group to swing, and two lifting drive components disposed outside the first housing for driving the coarse grinding roller group and the fine grinding roller group to adjust the gap according to the thickness of the steel plates;
[0008] The cleaning and drying mechanism includes a second box connected to the rear section of the first box, a second conveying roller group disposed in the second box for conveying steel plates, a first water spray assembly disposed in the second box in front of the second conveying roller group for cleaning the steel plates, a cold air knife assembly disposed in the second box in the middle section of the second conveying roller group for drying the surface moisture of the steel plates, and a high-pressure air knife assembly disposed in the second box in the rear section of the second conveying roller group for drying the steel plates.
[0009] In a preferred embodiment of the present invention, the first box has an inlet window on the side away from the second box, and the second box has an outlet window on the side away from the first box.
[0010] In a preferred embodiment of the present invention, a thickness sensor for detecting the thickness of the steel plate is provided above the feeding window of the first box.
[0011] In a preferred embodiment of the present invention, the grinding section of the fine grinding roller assembly is a grinding roller made of silicon steel.
[0012] In a preferred embodiment of the present invention, the grinding section of the fine grinding roller assembly is a grinding roller made of non-woven fabric.
[0013] As a preferred embodiment of the present invention, the first housing is provided with a second water spraying assembly behind the rough grinding roller assembly for spraying water into the rough grinding roller assembly to wet the steel plate.
[0014] As a preferred embodiment of the present invention, the rear bottom surface of the second box is provided with a drain for discharging cleaning wastewater.
[0015] As a preferred embodiment of the present invention, both the first box and the second box are provided with openings on their tops, and both the first box and the second box are provided with multiple lids.
[0016] In a preferred embodiment of the present invention, the first enclosure, the second enclosure, and the plurality of enclosure covers are all made of composite sound-absorbing material.
[0017] In a preferred embodiment of the present invention, the first water spray assembly, the cold air knife assembly, and the high-pressure air knife assembly are each provided in multiple forms.
[0018] The present invention achieves the following beneficial effects:
[0019] The integrated machine provided in this application combines grinding, wetting, cleaning, and drying functions, significantly reducing the floor space required. It also ensures the stability of the steel plate processing process and enables continuous automated operation. Compared with existing technologies, it significantly reduces labor costs, eliminates fluctuations in manual operation, and effectively improves the stability and consistency of product quality.
[0020] Other features and advantages of the invention will be set forth in the following description and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention can be realized and obtained by means of the structures pointed out in the description and the drawings. Attached Figure Description
[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the disclosure of this invention and, together with the description, serve to explain the principles of this disclosure.
[0022] Figure 1 This is a schematic diagram of the overall structure disclosed in this invention;
[0023] Figure 2 This is a schematic diagram of the side structure of the first housing disclosed in this invention;
[0024] Figure 3 This is a schematic diagram of the box cover mounting structure disclosed in this invention;
[0025] In the diagram: 10. Grinding machine; 11. First housing; 111. Feed window; 12. First conveying assembly; 13. Coarse grinding roller assembly; 14. Fine grinding roller assembly; 15. Swing drive assembly; 16. Lifting drive assembly; 17. Second water spray assembly; 20. Cleaning and drying mechanism; 21. Second housing; 211. Discharge window; 212. Drain; 22. Second conveying assembly; 23. First water spray assembly; 24. Cold air knife assembly; 25. High-pressure air knife assembly; 30. Opening; 40. Housing cover. Detailed Implementation
[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.
[0027] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.
[0028] Example
[0029] To address the issues that arise in traditional reflow lines where steel plate grinding, cleaning, and drying processes are typically performed by separate equipment, resulting in large footprints, cumbersome procedures, low efficiency, and long turnaround times; [reference needed] Figure 1 and Figure 2 As shown, this application discloses a grinding and cleaning integrated machine, including: a grinding machine 10 structure and a cleaning and drying mechanism 20. The grinding machine 10 structure includes a first housing 11, a first conveying roller group disposed in the first housing 11 for conveying steel plates, a coarse grinding roller group 13 disposed in the first housing 11 at the front end of the first conveying roller group for coarse grinding of the steel plates, a fine grinding roller group 14 disposed in the first housing 11 at the middle section of the first conveying roller group for fine grinding of the steel plates, two swing drive components 15 disposed outside the first housing 11 for driving the coarse grinding roller group 13 and the fine grinding roller group 14 to swing, and two lifting drive components 16 disposed outside the first housing 11 for driving the coarse grinding roller group 13 and the fine grinding roller group 14 to adjust the gap according to the thickness of the steel plates.
[0030] The first box 11 has an inlet window 111 on the side away from the second box 21, and the second box 21 has an outlet window 211 on the side away from the first box 11. A thickness sensor (not shown) for detecting the thickness of the steel plate is provided above the inlet window 111 of the first box 11.
[0031] The cleaning and drying mechanism 20 includes a second box 21 connected to the rear section of the first box 11, a second conveying roller group disposed in the second box 21 for conveying steel plates, a first water spray assembly 23 disposed in the second box 21 in front of the second conveying roller group for cleaning the steel plates, a cold air knife assembly 24 disposed in the second box 21 in the middle section of the second conveying roller group for drying the surface moisture of the steel plates, and a high-pressure air knife assembly 25 disposed in the second box 21 in the rear section of the second conveying roller group for drying the steel plates.
[0032] The specific implementation process of the above-mentioned grinding and cleaning integrated machine is as follows:
[0033] The operator inserts the steel plate to be ground and cleaned into the first chamber 11 through the inlet window 111 from the outside of the first chamber 11. During this process, the thickness sensor detects the thickness of the steel plate, and based on this detection information, the control system controls the two lifting drive components 16 to drive the coarse grinding roller group 13 and the fine grinding roller group 14 respectively to adjust the gap according to the thickness of the steel plate. As the steel plate enters the first chamber 11, the first conveying component 12 moves it. When it passes the coarse grinding roller group 13, the corresponding swing drive component 15 drives the grinding roller group to perform coarse grinding to quickly remove the oxide layer, rust and other impurities on the surface of the steel plate. When the first conveying component 12 moves it to the fine grinding roller group 14, the smoothness of the steel plate surface is ensured. The corresponding swing drive component 15 drives the fine grinding roller group 14 to perform rough grinding. The steel plate undergoes fine processing and grinding. After grinding, the first conveying component 12 carries the steel plate into the second housing 21, where it is further conveyed by the second conveying component 22. When the steel plate passes the first water spraying component 23, it sprays clean water onto the surface of the steel plate to remove residual debris and abrasive after grinding. When the steel plate passes the cold air knife component 24, it blows out a high-speed airflow to quickly remove moisture from the surface of the steel plate. When the steel plate passes the high-pressure air knife component 25, it blows out a high-pressure airflow to quickly dry the surface of the steel plate, thus achieving drying. Finally, driven by the second conveying component 22, the ground and cleaned steel plate is discharged through the discharge window 211.
[0034] In some preferred embodiments of this application, the grinding part of the fine grinding roller group 14 is a grinding roller made of silicon steel. The grinding roller made of silicon steel can perform rough grinding on the surface of the steel plate that has just entered the first box 11, thereby quickly removing the oxide layer, rust and other impurities on the surface of the steel plate. The grinding part of the fine grinding roller group 14 is a grinding roller made of non-woven fabric, thereby enabling fine grinding on the surface of the steel plate after rough grinding, thereby ensuring the smoothness of the steel plate surface.
[0035] In one specific implementation, the present application also provides a second water spraying component 17 behind the coarse grinding roller group 13 in the first housing 11 for spraying water into the coarse grinding roller group 13 to wet the steel plate. In specific implementation, the second water spraying component 17 will spray clean water on the surface of the steel plate in real time, so that the steel plate, in a wet state, can first use the coarse grinding roller group 13 to quickly remove the oxide layer, rust and other impurities on the surface of the steel plate; then, the fine grinding roller group 14 will perform fine treatment on the surface of the steel plate to improve the smoothness of the steel plate surface and provide ideal surface quality for subsequent processes.
[0036] To prevent wastewater generated by the first water spray assembly 23, the cold air knife assembly 24, and the high-pressure air knife assembly 25 from accumulating inside the second housing 21, a drain 212 is provided on the rear bottom surface of the second housing 21 to drain the cleaning wastewater. Based on this, the wastewater generated when the first water spray assembly 23, the cold air knife assembly 24, and the high-pressure air knife assembly 25 are working will be quickly discharged from the second housing 21 through the drain 212, thereby avoiding the aforementioned problem.
[0037] In one specific implementation, both the first housing 11 and the second housing 21 have openings 30 on their tops, and both the first housing 11 and the second housing 21 have multiple covers 40. In some preferred embodiments, the upper surface of these covers 40 is provided with handles. In practice, operators can quickly replace or repair relevant parts of the first housing 11 and the second housing 21 by opening the covers 40 through the handles, making it convenient and flexible to use. Furthermore, the first housing 11, the second housing 21, and the multiple covers 40 are all made of composite sound-absorbing material, which can effectively block and absorb the noise generated by the equipment during the entire operation process, keeping the equipment operating noise below 80 decibels, creating a more comfortable working environment for operators.
[0038] In order to improve the cleaning efficiency of steel plates, quickly remove moisture, and improve the drying quality, this application provides multiple first water spray assembly 23, cold air knife assembly 24, and high-pressure air knife assembly 25. When the steel plate enters the second housing 21, the second conveying assembly 22 will carry the steel plate through multiple first water spray assembly 23, multiple cold air knife assembly 24, and multiple high-pressure air knife assembly 25 in sequence, thereby achieving the above objectives.
[0039] In the description of this specification, the references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0040] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent transformations or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.
Claims
1. A grinding and cleaning integrated machine, characterized in that, include: A grinding mechanism, comprising a first housing, a first conveying roller group disposed within the first housing for conveying steel plates, a coarse grinding roller group disposed within the first housing at the front section of the first conveying roller group for coarse grinding of the steel plates, a fine grinding roller group disposed within the first housing at the middle section of the first conveying roller group for fine grinding of the steel plates, two swing drive components disposed outside the first housing for driving the coarse grinding roller group and the fine grinding roller group to swing, and two lifting drive components disposed outside the first housing for driving the coarse grinding roller group and the fine grinding roller group to adjust the gap according to the thickness of the steel plates; The cleaning and drying mechanism includes a second box connected to the rear section of the first box, a second conveying roller group disposed in the second box for conveying steel plates, a first water spray assembly disposed in the second box in front of the second conveying roller group for cleaning the steel plates, a cold air knife assembly disposed in the second box in the middle section of the second conveying roller group for drying the surface moisture of the steel plates, and a high-pressure air knife assembly disposed in the second box in the rear section of the second conveying roller group for drying the steel plates.
2. The grinding and cleaning integrated machine according to claim 1, characterized in that, The first box has an inlet window on the side away from the second box, and the second box has an outlet window on the side away from the first box.
3. The grinding and cleaning integrated machine according to claim 2, characterized in that, The first housing is equipped with a thickness sensor above the feed window for detecting the thickness of the steel plate.
4. The grinding and cleaning integrated machine according to claim 1, characterized in that, The grinding section of the fine grinding roller assembly is a grinding roller made of silicon steel.
5. The grinding and cleaning integrated machine according to claim 1, characterized in that, The grinding section of the fine grinding roller assembly is a grinding roller made of non-woven fabric.
6. The grinding and cleaning integrated machine according to claim 1, characterized in that, The first housing is provided with a second water spraying assembly behind the rough grinding roller assembly for spraying water into the rough grinding roller assembly to wet the steel plate.
7. The grinding and cleaning integrated machine according to claim 1, characterized in that, The second box has a drain at the rear bottom surface for draining cleaning wastewater.
8. The grinding and cleaning integrated machine according to claim 1, characterized in that, Both the first and second boxes have openings at the top, and both the first and second boxes have multiple lids.
9. A grinding and cleaning integrated machine according to claim 8, characterized in that, The first enclosure, the second enclosure, and the multiple enclosure covers are all made of composite sound-absorbing material.
10. A grinding and cleaning integrated machine according to claim 1, characterized in that, The first water spray assembly, cold air knife assembly, and high-pressure air knife assembly are each provided in multiple quantities.