A stainless steel wash basin automatic polishing equipment and method based on magnetic field driving
By using a magnetic field-driven mechanical and chemical coupling polishing method, the problem of uneven polishing on the surface of stainless steel washbasins has been solved, achieving efficient and pollution-free automated polishing that is suitable for workpieces of different specifications.
Patent Information
- Application Number
- CN202311497384.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-10
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2043-11-10
AI Technical Summary
Existing polishing methods for stainless steel washbasins cannot adapt to irregular surfaces, resulting in uneven polishing, low efficiency, and dust and noise pollution.
A mechanical and chemical coupling polishing method based on magnetic field drive is adopted. It utilizes a magnetic field drive module, polishing container, adjustment device, feeding device and unloading device to achieve all-round automated polishing, and combines magnetic polishing abrasive and chemical reagents for polishing.
It achieves uniform polishing of the entire surface of stainless steel washbasins, improving polishing quality, reducing dust and noise pollution, increasing automation and polishing efficiency, and adapting to workpieces of different specifications.
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Figure CN117300747B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of stainless steel wash basin polishing processing, in particular to a stainless steel wash basin automatic polishing equipment and method based on magnetic field driving. BACKGROUND
[0002] In the production process of the stainless steel wash basin, in order to improve the surface quality when it is finally put on the market, it needs to be polished to remove burrs on the surface of the stainless steel wash basin, reduce the surface roughness and improve the surface finish. The existing polishing method of the stainless steel wash basin is generally a mechanical polishing method of polishing the surface according to a specific path by using a polishing wheel or a polishing belt.
[0003] Since the polishing area of the stainless steel wash basin is an extremely irregular surface, there are a large number of inconsistent planes and inconsistent curved surface areas, so that the polishing wheel or the polishing belt cannot fully adapt to different processing areas in the polishing process, and problems such as uneven polishing contact force and even some areas cannot be polished may occur, thereby causing uneven material removal and poor consistency of polishing effect. In addition, when using these material removal methods based on mechanical stress, not only the processing efficiency is poor and manual intervention is needed, but also serious metal dust and noise pollution is generated, which brings serious potential harm to the operator. SUMMARY
[0004] To solve the above problems in the polishing process of the stainless steel wash basin, the present application provides a stainless steel wash basin automatic polishing equipment and method based on magnetic field driving, which adopts a polishing method of removing material by coupling mechanical action and chemical action based on magnetic field driving, and realizes automatic, omnidirectional, high-efficiency and high-quality polishing of the stainless steel wash basin.
[0005] The specific technical scheme adopted by the present application is: a stainless steel wash basin automatic polishing equipment based on magnetic field driving, comprising a magnetic field driving module, a polishing container, an adjusting device, a feeding device, a water bath and a discharging device, the omnidirectional polishing of workpieces of different specifications is realized by the joint action of the magnetic field driving module, the polishing container and the adjusting device, the polishing container is used for containing polishing liquid and workpieces, the material is a non-magnetic material, magnetic polishing abrasive is arranged in the polishing liquid, the feeding device is used for realizing automatic feeding of the workpieces, the water bath is used for realizing water bath cleaning of the polished workpieces to remove surface residues, and the discharging device is used for shifting and cleaning the polished workpieces and automatically discharging the cleaned workpieces.
[0006] Furthermore, the magnetic field drive module includes a housing, a magnetic disk, and a polishing motor. The housing is made of a non-magnetic material. A magnetic field generator is located above the magnetic disk. The output end of the polishing motor is connected to the central axis of the magnetic disk. The polishing motor corresponds one-to-one with the magnetic disk and is consistent with the maximum number of workpieces that can be polished simultaneously.
[0007] Furthermore, the polishing container is placed on the box body, and the side wall of the polishing container is provided with an injection valve and a drain valve.
[0008] Furthermore, the polishing fluid is composed of solid abrasive and liquid reagent, wherein the solid abrasive is magnetic polishing abrasive with a concentration of 10-20 wt.%, and the liquid reagent includes oxidant, corrosion inhibitor, pH adjuster and deionized water.
[0009] Furthermore, the oxidant is one or more of hydrogen peroxide, potassium permanganate, potassium peroxymonosulfate, sodium persulfate, sodium percarbonate, and manganese nitrate solution, with a concentration of 2–6 wt.%; the corrosion inhibitor is one or more of 1,2,4-triazole, sodium benzoate, potassium sorbate, sodium tartrate, and thiourea, with a concentration of 0.05–0.2 wt.%; the pH adjuster is one or more of phosphoric acid, citric acid, malic acid, tartaric acid, lactic acid, acetic acid, oxalic acid, succinic acid, and glycolic acid; and the pH value of the polishing solution is 3–4. The solid abrasive provides mechanical grinding action on the polishing surface material under the drive of the high-frequency changing magnetic field provided by the magnetic disk, and the liquid reagent changes the properties of the surface material in the polishing area, making it easier for the solid abrasive to remove it without damage.
[0010] Furthermore, the adjustment device includes a fixed frame, a support frame, an electric telescopic rod A, a fixed longitudinal beam, a movable longitudinal beam, a single-groove slide, a longitudinal beam connecting rod, an electric telescopic rod B, a fixed crossbeam, a cross slide, a movable crossbeam, a crossbeam connecting rod, an electric telescopic rod C, and a pneumatic suction rotation mechanism.
[0011] The fixed frame is installed on the box body. The four corners of the support frame are respectively connected to the output ends of four electric telescopic rods A. The telescopic length of the electric telescopic rods A can be adjusted to adapt to the polishing of workpieces with different depths. The base of the electric telescopic rod A is fixed on the box body. The fixed longitudinal beam is fixed to the support frame. The movable longitudinal beam is connected to the support frame through the single groove and can slide on the support frame. The movable longitudinal beam is connected to the output end of the electric telescopic rod B through the longitudinal beam connecting rod. The base of the electric telescopic rod B is fixed on the support frame.
[0012] One end of the fixed crossbeam is fixed to the fixed longitudinal beam, and the other end is connected to the movable longitudinal beam through the cross groove. Both ends of the movable crossbeam are connected to the fixed longitudinal beam and the movable longitudinal beam respectively through the cross groove. The movable crossbeam and the fixed crossbeam correspond one-to-one. The area composed of the fixed longitudinal beam, the movable longitudinal beam, the fixed crossbeam and the movable crossbeam is located directly above the magnetic disk, and the size of the area is adjustable to adapt to the polishing of workpieces of different specifications. The movable crossbeams are connected together through the crossbeam connecting rod and connected to the output end of the electric telescopic rod C. The base of the electric telescopic rod C is fixed on the support frame.
[0013] The pneumatic suction and rotation mechanism is mounted on a fixed frame and is symmetrically distributed in pairs. It includes a cylinder, a pneumatic suction cup, a reduction mechanism, and a motor. The output end of the cylinder is connected to the pneumatic suction cup, the base of the cylinder is connected to the output end of the reduction mechanism, and the input end of the reduction mechanism is connected to the output end of the motor. The cylinder and the pneumatic suction cup clamp the workpiece, and the reduction mechanism and the motor rotate and polish the workpiece.
[0014] Furthermore, the feeding device can realize automatic feeding of workpieces, including slide rails, a first gantry frame, a feeding cylinder and a feeding suction cup. There are two slide rails, which are fixedly installed on a fixed frame. The first gantry frame is slidably connected to the slide rails and can slide along the slide rails. The feeding cylinder is installed on the first gantry frame, and the output end of the feeding cylinder is connected to the feeding suction cup.
[0015] Furthermore, the side wall of the water bath is provided with a water injection valve and a drain valve.
[0016] Furthermore, the unloading device can reposition and clean the polished workpiece and automatically unload the cleaned workpiece. It includes a slide rail, a second gantry, an unloading cylinder, and an unloading suction cup. The second gantry is slidably connected to the slide rail and can slide along the slide rail. The unloading cylinder is installed on the second gantry, and the output end of the unloading cylinder is connected to the unloading suction cup.
[0017] This invention also discloses an automated polishing method for an automated polishing device for stainless steel washbasins driven by the aforementioned magnetic field, comprising the following steps:
[0018] S1. Prepare the polishing liquid and place the polishing container on the box;
[0019] S2. Place the workpiece in the corresponding polishing station using the feeding device;
[0020] S4. According to the specifications of the workpiece to be polished, adjust the horizontal electric telescopic rod on the polishing station to make the adjusting part of the adjusting device contact the workpiece and fix it in place. Adjust the vertical electric telescopic rod to lower the support frame to the station where the workpiece contacts the solid abrasive.
[0021] S5. The workpiece is clamped by a cylinder and a pneumatic suction, and then the workpiece is rotated and polished by an electric motor.
[0022] S6. The polished workpiece is first moved to the top of the water bath by the unloading device. The extension and retraction length of the unloading cylinder is controlled so that the workpiece is cleaned in the water bath. Then it is moved to the unloading point to complete the unloading.
[0023] Compared with the prior art, the present invention has the following beneficial effects:
[0024] 1. The present invention provides an automated polishing equipment for stainless steel washbasins based on magnetic field drive. It adopts a polishing method that uses a combination of mechanical and chemical action driven by magnetic field drive to remove materials. It can achieve polishing of the entire surface area of stainless steel washbasins with uniform polishing force. It will not produce defects such as polishing marks caused by traditional mechanical polishing methods, and the surface quality after polishing is high.
[0025] 2. The present invention provides an automated polishing equipment for stainless steel washbasins based on magnetic field drive, which uses a multi-station automated polishing method to polish multiple workpieces simultaneously, and the polishing process does not require manual intervention, with a high degree of automation and high polishing efficiency.
[0026] 3. The present invention provides an automated polishing equipment for stainless steel washbasins based on magnetic field drive, which can adapt to the automated polishing of workpieces of different specifications and has strong versatility.
[0027] 4. The present invention provides an automated polishing device for stainless steel washbasins based on magnetic field drive. The polishing process is a global immersion polishing, which will not generate dust and noise pollution. The polishing liquid uses pure green ingredients and will not pose any potential harm to people and the environment. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the structure of an automated polishing device for stainless steel washbasins based on magnetic field drive according to the present invention.
[0029] Figure 2 This is a partial schematic diagram of the magnetic field driving module of the present invention;
[0030] Figure 3 This is a schematic diagram of the polishing container of the present invention;
[0031] Figure 4 This is a schematic diagram of the adjusting device of the present invention;
[0032] Figure 5 This is a schematic diagram of the support frame of the present invention;
[0033] Figure 6 This is a schematic diagram of the air suction rotation mechanism of the present invention.
[0034] In the above figures: 1. Magnetic field drive module; 101. Housing; 102. Magnetic disk; 103. Polishing motor; 2. Polishing container; 201. Injection valve; 202. Drain valve; 3. Adjustment device; 301. Fixed frame; 302. Support frame; 303. Electric telescopic rod A; 304. Fixed longitudinal beam; 305. Moving longitudinal beam; 306. Single groove slide; 307. Longitudinal beam connecting rod; 308. Electric telescopic rod B; 309. Fixed crossbeam; 3010. Cross slide; 3011. Moving crossbeam; 3012. Horizontal... Beam connecting rod; 3013, electric telescopic rod C; 3014, pneumatic suction rotation mechanism; 3014-1, cylinder; 3014-2, pneumatic suction cup; 3014-3, reduction mechanism; 3014-4, electric motor; 4, feeding device; 401, slide rail; 402, first gantry frame; 403, feeding cylinder; 404, feeding suction cup; 5, water bath; 501, water injection valve; 502, drain valve; 6, unloading device; 601, slide rail; 602, second gantry frame; 603, unloading cylinder; 604, unloading suction cup. Detailed Implementation
[0035] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.
[0036] Combination Figure 1 This invention discloses an automated polishing device for stainless steel washbasins based on magnetic field drive. In this embodiment, the maximum number of workpieces that can be polished simultaneously is four. In other optional embodiments, the specific number of workpieces polished can be adaptively adjusted based on the overall length of the device. The device includes a magnetic field drive module 1, a polishing container 2, an adjustment device 3, a feeding device 4, a water bath 5, and a discharging device 6. The magnetic field drive module 1, polishing container 2, and adjustment device 3 are used for omnidirectional polishing of the workpieces. The feeding device 4 is used for automatic feeding of the workpieces. The water bath 5 is used for water bath cleaning of the polished workpieces to remove surface residues. The discharging device 6 is used for repositioning and cleaning the polished workpieces and for automatically discharging the cleaned workpieces. In this embodiment, a stainless steel washbasin is used as an example.
[0037] Combination Figure 1 and Figure 2 The magnetic field drive module 1 includes a housing 101, a magnetic disk 102, and a polishing motor 103. Preferably, the housing 101 is made of aluminum alloy. A permanent magnet is provided above the magnetic disk 102. The output end of the polishing motor 103 is connected to the central axis of the magnetic disk 102. The polishing motor 103 and the magnetic disk 102 are in one-to-one correspondence, and there are 4 of each.
[0038] Combination Figure 1 and Figure 3During polishing, the polishing container 2 is placed on the housing 101 to hold the polishing liquid and the workpiece. Preferably, the polishing container 2 is made of polypropylene, and its side wall is equipped with an injection valve 201 and a drain valve 201. The polishing liquid consists of solid abrasive and liquid reagent. Specifically, the solid abrasive is placed into the polishing container 2 before the workpiece. The solid abrasive is magnetized stainless steel polishing abrasive with a concentration of 15 wt.%, which provides mechanical grinding action on the polishing surface material under the magnetic field driven by the magnetic disk 102. The liquid reagent is injected through the injection valve 201 after the workpiece is placed in. The oxidant in the liquid reagent is hydrogen peroxide with a concentration of 4 wt.%, the corrosion inhibitor is sodium tartrate with a concentration of 0.1 wt.%, and the pH adjuster is citric acid, adjusting the pH value to 3. The liquid reagent changes the properties of the surface material in the polishing area, making it easier for the solid abrasive to remove it. The polishing liquid level is above 1 / 2 the height of the workpiece.
[0039] Combination Figure 1 , Figure 4 and Figure 5 The adjusting device 3 includes a fixed frame 301, a support frame 302, an electric telescopic rod A 303, a fixed longitudinal beam 304, a movable longitudinal beam 305, a single groove slide 306, a longitudinal beam connecting rod 307, an electric telescopic rod B 308, a fixed crossbeam 309, a cross slide 3010, a movable crossbeam 3011, a crossbeam connecting rod 3012, an electric telescopic rod C 3013, and a pneumatic suction rotation mechanism 3014.
[0040] The fixed frame 301 is installed on the housing 101. The four corners of the support frame 302 are connected to the output ends of four electric telescopic rods A303 respectively. The base of the electric telescopic rod A303 is fixed on the housing 101. The fixed longitudinal beam 304 is fixedly connected to the support frame 302. The movable longitudinal beam 305 is connected to the support frame 302 through the single groove slide 306 and can slide on the support frame 302. The movable longitudinal beam 305 is connected to the output end of the electric telescopic rod B308 through the longitudinal beam connecting rod 307. The base of the electric telescopic rod B308 is fixed on the support frame 302. One end of each of the four fixed crossbeams 309 is fixed to the fixed longitudinal beam 304, and the other end is connected to the movable longitudinal beam 305 through the cross groove 3010. Both ends of the four movable crossbeams 3011 are connected to the fixed longitudinal beam 304 and the movable longitudinal beam 305 respectively through the cross groove 3010. The movable crossbeams 3011 and the fixed crossbeams 309 correspond one to one. The area composed of the fixed longitudinal beam 304, the movable longitudinal beam 305, the fixed crossbeams 309 and the movable crossbeams 3011 is located directly above the magnetic disk 102. The four movable crossbeams 3011 are connected together through the crossbeam connecting rod 3012 and connected to the output end of the electric telescopic rod C3013. The base of the electric telescopic rod C3013 is fixed on the support frame 302. According to the specifications of the workpiece to be polished, by adjusting the electric telescopic rods B308 and C3013, the fixed longitudinal beam 304, the movable longitudinal beam 305, the fixed crossbeam 309, and the movable crossbeam 3011 are brought into contact with and fixed to the workpiece. By adjusting the electric telescopic rod A303, the support frame 302 is lowered until the workpiece is in contact with the solid abrasive.
[0041] Combination Figure 1 , Figure 4 and Figure 6 The pneumatic suction and rotation mechanism 3014 is mounted on the fixed frame 301 and is symmetrically distributed in pairs, with a total of four pairs. It includes a cylinder 3014-1, a pneumatic suction cup 3014-2, a reduction mechanism 3014-3, and a motor 3014-4. The output end of the cylinder 3014-1 is connected to the pneumatic suction cup 3014-2, the base of the cylinder 3014-1 is connected to the output end of the reduction mechanism 3014-3, and the input end of the reduction mechanism 3014-3 is connected to the output end of the motor 3014-4. The workpiece is clamped by the cylinder 3014-1 and the pneumatic suction cup 3014-2, and then rotated and polished by the reduction mechanism 3014-3 and the motor 3014-4.
[0042] Combination Figure 1The feeding device 4 includes a slide rail 401, a first gantry frame 402, a feeding cylinder 403, and a feeding suction cup 404. Two slide rails 401 are fixedly mounted on a fixed frame 301. The first gantry frame 402 is slidably connected to the slide rails 401 and can slide along the slide rails 401. The feeding cylinder 403 is mounted on the first gantry frame 402, and its output end is connected to the feeding suction cup 404. By moving the first gantry frame 402, the feeding cylinder 403 and the feeding suction cup 404 are started and stopped, sequentially placing the workpieces at the feeding point onto the corresponding polishing positions. A water injection valve 501 and a drain valve 502 are provided on the side wall of the water bath 5. The unloading device 6 includes a slide rail 601, a second gantry frame 602, an unloading cylinder 603, and an unloading suction cup 604. The slide rail 601 is shared with the slide rail 401. The second gantry frame 602 is slidably connected to the slide rail 601 and can slide along the slide rail 601. The unloading cylinder 603 is mounted on the second gantry frame 602, and its output end is connected to the unloading suction cup 604. By moving the second gantry frame 402, the unloading cylinder 603, and the unloading suction cup 604, the polished workpiece is first moved above the water bath 5. The extension and retraction length of the unloading cylinder 603 is controlled to clean the workpiece in the water bath 5 before it is moved to the unloading point to complete the unloading process.
[0043] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Therefore, any simple modifications, alterations, and equivalent structural changes made to the above embodiments based on the technical essence of the present invention shall still fall within the protection scope of the present invention.
Claims
1. An automated polishing device for stainless steel washbasins based on magnetic field drive, characterized in that, A method for polishing stainless steel washbasins is employed, which couples mechanical and chemical actions driven by a magnetic field to remove materials. The method includes a magnetic field drive module, a polishing container, an adjustment device, a feeding device, a water bath, and a discharging device. The combined action of the magnetic field drive module, polishing container, and adjustment device enables omnidirectional polishing of workpieces of different sizes. The polishing container, made of non-magnetic material, holds the polishing liquid and the workpieces. Magnetic polishing abrasives are incorporated into the polishing liquid. The feeding device automatically feeds the workpieces. The water bath cleans the polished workpieces to remove surface residue. The discharging device repositions and cleans the polished workpieces and automatically unloads them. The polishing fluid consists of solid abrasive and liquid reagent, wherein the solid abrasive is magnetic polishing abrasive with a concentration of 10~20 wt.%, and the liquid reagent includes oxidant, corrosion inhibitor, pH adjuster and deionized water; The oxidant is one or more of hydrogen peroxide, potassium permanganate, potassium peroxymonosulfate, sodium persulfate, sodium percarbonate, and manganese nitrate solution, with a concentration of 2-6 wt.%; the corrosion inhibitor is one or more of 1,2,4-triazole, sodium benzoate, potassium sorbate, sodium tartrate, and thiourea, with a concentration of 0.05-0.2 wt.%; the pH adjuster is one or more of phosphoric acid, citric acid, malic acid, tartaric acid, lactic acid, acetic acid, oxalic acid, succinic acid, and glycolic acid; and the pH value of the polishing solution is 3-4. The adjustment device includes a fixed frame, a support frame, an electric telescopic rod A, a fixed longitudinal beam, a movable longitudinal beam, a single groove slide, a longitudinal beam connecting rod, an electric telescopic rod B, a fixed crossbeam, a cross slide, a movable crossbeam, a crossbeam connecting rod, an electric telescopic rod C, and a pneumatic suction rotation mechanism. The fixed frame is installed on the box body. The four corners of the support frame are respectively connected to the output ends of the four electric telescopic rods A. The base of the electric telescopic rod A is fixed on the box body. The fixed longitudinal beam is fixed to the support frame. The movable longitudinal beam is connected to the support frame through the single groove slide. The movable longitudinal beam is connected to the output end of the electric telescopic rod B through the longitudinal beam connecting rod. The base of the electric telescopic rod B is fixed on the support frame. One end of the fixed crossbeam is fixed to the fixed longitudinal beam, and the other end is connected to the movable longitudinal beam through the cross groove. Both ends of the movable crossbeam are connected to the fixed longitudinal beam and the movable longitudinal beam respectively through the cross groove. The movable crossbeam and the fixed crossbeam correspond one-to-one. The area composed of the fixed longitudinal beam, the movable longitudinal beam, the fixed crossbeam and the movable crossbeam is located directly above the magnetic disk. The movable crossbeam is connected together through the crossbeam connecting rod and connected to the output end of the electric telescopic rod C. The base of the electric telescopic rod C is fixed on the support frame. The pneumatic suction and rotation mechanism is mounted on a fixed frame and is symmetrically distributed in pairs. It includes a cylinder, a pneumatic suction cup, a reduction mechanism, and a motor. The output end of the cylinder is connected to the pneumatic suction cup, the base of the cylinder is connected to the output end of the reduction mechanism, and the input end of the reduction mechanism is connected to the output end of the motor.
2. The automated polishing equipment for stainless steel washbasins based on magnetic field drive according to claim 1, characterized in that, The magnetic field drive module includes a housing, a magnetic disk, and a polishing motor. The housing is made of a non-magnetic material. A magnetic field generator is located above the magnetic disk. The output end of the polishing motor is connected to the central axis of the magnetic disk. The polishing motor corresponds one-to-one with the magnetic disk and is consistent with the maximum number of workpieces that can be polished simultaneously.
3. The automated polishing equipment for stainless steel washbasins based on magnetic field drive according to claim 1, characterized in that, The polishing container is placed on the box body, and the side wall of the polishing container is equipped with an injection valve and a drain valve.
4. The automated polishing equipment for stainless steel washbasins based on magnetic field drive according to claim 1, characterized in that, The feeding device includes a slide rail, a first gantry frame, a feeding cylinder, and a feeding suction cup. There are two slide rails, which are fixedly installed on a fixed frame. The first gantry frame is slidably connected to the slide rail and can slide along the slide rail. The feeding cylinder is installed on the first gantry frame, and the output end of the feeding cylinder is connected to the feeding suction cup.
5. The automated polishing equipment for stainless steel washbasins based on magnetic field drive according to claim 1, characterized in that, The side wall of the water bath is equipped with a water injection valve and a drain valve.
6. The automated polishing equipment for stainless steel washbasins based on magnetic field drive according to claim 1, characterized in that, The feeding device includes a slide rail, a second gantry frame, a feeding cylinder, and a feeding suction cup. The second gantry frame is slidably connected to the slide rail and can slide along the slide rail. The feeding cylinder is installed on the second gantry frame, and the output end of the feeding cylinder is connected to the feeding suction cup.
7. An automated polishing method based on the magnetic field-driven automated polishing equipment for stainless steel washbasins as described in claim 6, characterized in that, Includes the following steps: S1. Prepare the polishing liquid and place the polishing container on the box; S2. Place the workpiece in the corresponding polishing station using the feeding device; S4. According to the specifications of the workpiece to be polished, adjust the horizontal electric telescopic rod on the polishing station to make the adjusting part of the adjusting device contact the workpiece and fix it in place. Adjust the vertical electric telescopic rod to lower the support frame to the station where the workpiece contacts the solid abrasive. S5. The workpiece is clamped by a cylinder and a pneumatic suction, and then the workpiece is rotated and polished by an electric motor. S6. The polished workpiece is first moved to the top of the water bath by the unloading device. The extension and retraction length of the unloading cylinder is controlled so that the workpiece is cleaned in the water bath. Then it is moved to the unloading point to complete the unloading.
Citation Information
Patent Citations
Device of full-automatic magnetic polishing machine
CN112548685A
Polishing composition
GB0022349D0