An automatic planar coating peeling device

Abstract

The application provides a kind of automatic peeling device of plane coating, which comprises cutter head assembly, feed and discharge assembly, driving assembly and rack;The cutter head assembly is located on the rack, and the rotating speed and direction are controlled by the driving assembly, which is used to peel the coating of plane material;The feed and discharge assembly is located on the same side or both sides of the rack, which is used to send the plane material to the cutter head, and send the material after peeling the coating;The driving assembly includes one or more groups of motors and bearings, which control the cutter head assembly and are fixed on the rack.The cutter head structure of the device can completely peel the coating of plane material without damaging the plane material;The feed and discharge assembly and the driving assembly can automatically and efficiently complete the peeling of the coating of plane material.

Description

Technical Field

[0001] This invention belongs to the field of coating removal technology, and specifically relates to an automatic coating removal device for planar surfaces. Background Technology

[0002] Currently, the methods for removing coatings from the surface of flat materials are generally scraping, sanding, or chemical removers. The coatings on flat materials include soft paints, inks, fiber coatings, UV coatings, etc. Scraping tools mainly include blades or scrapers, and sanding tools are mostly sandpaper. However, both of these methods either do not remove the coating completely or easily damage the substrate. Chemical removers require sufficient reaction time, usually 15-20 minutes or longer, and then the surface should be wiped clean with a paper towel. However, if the flat material is paper, the remover will damage the flat material and is not suitable.

[0003] Manually removing coatings can lead to health problems for workers due to prolonged repetitive labor; while using chemicals for stripping can pose dangers to workers. If there are batches of coated flat materials, efficient and automated coating removal is also necessary.

[0004] Therefore, there is an urgent need for an automatic coating removal device for planar materials that can remove the coating cleanly without damaging the planar material. Summary of the Invention

[0005] To address the aforementioned problems in the prior art, this invention proposes an automatic planar coating removal device.

[0006] This invention proposes an automatic planar coating stripping device, which includes a cutter head assembly, a feeding and discharging assembly, a drive assembly, and a frame;

[0007] The cutter head assembly is located on the frame and its rotation speed and direction are controlled by the drive assembly. It is used to remove the coating of planar materials.

[0008] The feeding and discharging components are located on the same side or both sides of the frame and are used to feed flat materials into the cutter head and to discharge the material after the coating has been removed.

[0009] The drive assembly includes one or more sets of motors and bearings, controls the cutter head assembly, and is fixed on the frame.

[0010] As a specific embodiment of the present invention, the cutter head includes a first roller 1 and a second roller 2 arranged in the same vertical plane. The outer surface of the second roller is provided with a cutter 3. The cutter 3 is configured as a single blade or a combination of multiple blades, and the outer diameter of each blade has 1 to 2 actual contact points with the coating.

[0011] In a specific embodiment of the present invention, the blade forms a trajectory on the planar structure of the second roller 2 unfolded along any generatrix, and the shape of the trajectory includes greater than or equal to A sine wave curve with a period of y = sinx, or a broken line or curve composed of two or more line segments connected end to end in sequence.

[0012] As a specific embodiment of the present invention, when multiple combined blades are configured, the trajectories formed by each blade on the planar structure of the second roller 2 with any generatrix do not intersect each other.

[0013] As a specific embodiment of the present invention, there is a gap between the outer surface of the first roller 1 and the outer diameter of the cutter 3, the gap being 1.5mm-2.0mm, the gap providing space for the peeling motion of the coating on the surface of the planar material.

[0014] In a specific embodiment of the present invention, the diameter of the first roller 1 is larger than the diameter of the second roller 2. Preferably, the ratio of the diameter of the first roller 1 to the diameter of the second roller 2 is (1.30-1.45):1.

[0015] As a specific embodiment of the present invention, the ratio of the length of the first roller 1 to the diameter of the first roller 1 is (9-11):1, preferably 10:1.

[0016] As a specific embodiment of the present invention, the ratio of the length of the second roller 2 to the diameter of the second roller 2 is (15-17):1, preferably 16:1.

[0017] In a specific embodiment of the present invention, the first roller 1 is made of EPM rubber with a Shore hardness range of 30HA-60HA, and the second roller 2 is made of metal with a hardness of 56HRC, preferably stainless steel with a hardness of 56HRC; the cutter 3 has the same material hardness as the second roller.

[0018] As a specific embodiment of the present invention, the peeling effect value of the coating on the surface of the planar material is β, where β is the ratio of the area remaining after the coating on the surface of the planar material is peeled off to the total area of ​​the original surface coating. The smaller β is, the better the peeling effect of the coating on the surface of the planar material.

[0019] As a specific embodiment of the present invention, the relationship between the material hardness value of the first roller 1 and the coating removal effect value of the planar material is as follows:

[0020] β i =0.2286*sin(0.8724x) i +1.687)+0.9308*sin(1.648x i-1.179)+0.01085*sin(5.162x i -1.5)

[0021] +0.7472*sin(1.681x i +2.029)+0.002122*sin(6.838x i +1.502)

[0022] 30≤x i ≥60 (i=1,2,...,n)

[0023] x i ∈Z

[0024] Where, x i This represents the hardness value when the first roller 1 is made of type i rubber.

[0025] β i This represents the peeling effect value when the first roller 1 is made of type i rubber.

[0026] n is the total number of models of the first roller 1.

[0027] sin is the sine function;

[0028] The objective function β can be solved using Newton's method. i When x is at its minimum i The value of .

[0029] In a specific embodiment of the present invention, the feeding and discharging assembly includes a guiding device 11, a feeding port 401, and a discharging port 402. The feeding port 401 and the discharging port 402 are disposed at one end of the frame 4, and the guiding device 11 is disposed at the front end of the feeding port 401. The vertical height of the feeding port 401 is 1.5mm-2.0mm, and the horizontal length is 19mm-20mm. The vertical height and horizontal length of the discharging port 402 are equal to those of the feeding port 401.

[0030] In a specific embodiment of the present invention, the drive assembly includes bearings and a motor; one side of the first bearing 101 and the second bearing 102 are respectively connected to the two ends of the first roller 1; the other side of the first bearing 101 and the second bearing 102 are fixedly connected to one end of the frame 4; one end of the second roller 2 is connected to the third bearing 205, the third bearing 205 is fixedly connected to one end of the frame 4, and the other end of the second roller 2 passes through the fourth bearing 206 and is fixedly connected to the inner hole of the drive wheel 201; the outer gear teeth of the drive wheel 201 mesh with the outer gear teeth of the driven wheel 202 and are connected to the conveyor belt 203; the inner hole of the driven wheel 202 is connected to the output shaft of the first motor 204 to provide driving force for the cutter head.

[0031] As a specific embodiment of the present invention, the outer surface of the third roller 5 and the outer surface of the fourth roller 6 are provided with a gap of 1.5mm-2.0mm, and the outer surface of the fifth roller 7 and the outer surface of the sixth roller 8 are provided with a gap of 1.5mm-2.0mm.

[0032] As a specific embodiment of the present invention, the frame 4 is further provided with 12 slots at both ends. The first slot 403 is used to fix and connect the first bearing 101, the second slot 4031 is used to fix and connect the second bearing 102, the third slot 404 is used to fix and connect the third bearing 205, the fourth slot 4041 is used to fix and connect the fourth bearing 206, and the other 8 slots, the fifth slot 405 and the sixth slot 4051, the seventh slot 406 and the eighth slot 4061, the ninth slot 407 and the tenth slot 4071, the eleventh slot 408 and the twelfth slot 4081 are respectively used to fix and connect the fifth bearing 502 and the sixth bearing 503 connected to both ends of the third roller 5, the seventh bearing 601 and the eighth bearing 602 connected to both ends of the fourth roller 6, the ninth bearing 702 and the tenth bearing 703 connected to both ends of the fifth roller 7, and the eleventh bearing 801 and the twelfth bearing 802 connected to both ends of the sixth roller 8.

[0033] In a specific embodiment of the present invention, one end of the third roller 5 is connected to the fifth bearing 502, which is connected to one end of the frame 4. The other end of the third roller 5 passes through the sixth slot 4051, through the sixth bearing 503 and one end of the frame 4, and is sequentially connected to the first coupling 504 and the output shaft of the second motor 501. One end of the fifth roller 7 is connected to the ninth bearing 702, which is connected to one end of the frame 4. The other end of the fifth roller 7 passes through the tenth slot 4071, through the tenth bearing 703 and one end of the frame 4, and is sequentially connected to the second coupling 704 and the output shaft of the third motor 701.

[0034] As a specific embodiment of the present invention, the material and hardness of the third roller 5, the fourth roller 6, the fifth roller 7, and the sixth roller 8 are the same as those of the first roller 1.

[0035] In a specific embodiment of the present invention, the center lines of the third roller 5 and the fourth roller 6 are arranged in the same vertical plane, the center lines of the fifth roller 7 and the sixth roller 8 are arranged in the same vertical plane, the center lines of the third roller 5 and the fifth roller 7 are arranged in the same horizontal plane, and the center lines of the fourth roller 6 and the sixth roller 8 are arranged in the same horizontal plane.

[0036] In a specific embodiment of the present invention, the diameter of the third roller 5, the fourth roller 6, the fifth roller 7, and the sixth roller 8 is the same as the diameter of the first roller 1, and the length of the third roller 5, the fourth roller 6, the fifth roller 7, and the sixth roller 8 is the same as the length of the first roller 1; the ratio of the length to the diameter of the third roller 5, the fourth roller 6, the fifth roller 7, and the sixth roller 8 is 9-11, preferably 10.

[0037] All of the above-mentioned raw materials used in this invention can be prepared in-house or purchased commercially; this invention does not impose any particular limitations on them.

[0038] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0039] 1. The blade structure of the automatic coating removal device for flat materials of the present invention can completely remove the coating of flat materials without damaging the flat materials. Compared with manual removal and chemical removal, the device can maintain higher peeling quality and better precision.

[0040] 2. The feeding and discharging design and drive components of the automatic coating removal device for planar materials of the present invention can automatically and efficiently complete the removal of coatings from planar materials, reducing the work that used to take several days or weeks to several hours or days.

[0041] 3. The automatic peeling device for planar coatings of the present invention can be used for various types of materials and coatings, including paint, resin, baking paint, polypropylene, polyurethane, etc. The device is also suitable for coatings of various colors and surface morphologies.

[0042] 4. The automatic coating removal device of the present invention improves work safety and reduces the risk of work-related injuries and environmental pollution compared with manual coating removal. Attached Figure Description

[0043] Figure 1 A schematic diagram of the cutter head assembly structure of the automatic planar coating stripping device provided by the present invention;

[0044] Figure 2 A schematic diagram of the blade structure of the automatic planar coating removal device provided by the present invention;

[0045] Figure 3 A schematic diagram of the cutter head assembly and drive assembly of the automatic planar coating stripping device provided by the present invention;

[0046] Figure 4 A schematic diagram of the bearing arrangement for the automatic planar coating stripping device provided by the present invention;

[0047] Figure 5 A schematic diagram of the slot design at one end of the frame of the automatic peeling device for planar coatings provided by the present invention;

[0048] Figure 6 A schematic diagram of the slot design at one end of the frame of the automatic peeling device for planar coatings provided by the present invention;

[0049] Figure 7 A schematic diagram of the discharge port of the automatic planar coating stripping device provided by the present invention;

[0050] Figure 8 A schematic diagram showing the inlet direction of the automatic planar coating stripping device provided by the present invention;

[0051] Figure 9 A perspective view of the automatic planar coating removal device provided by the present invention;

[0052] In the diagram: 1-First roller, 2-Second roller, 3-Cut tool, 4-Frame, 101-First bearing, 102-Second bearing, 201-Driving wheel, 202-Driven wheel, 203-Conveyor belt, 204-First motor, 205-Third bearing, 206-Fourth bearing, 401-Inlet, 402-Outlet, 403-First slot, 4031-Second slot, 404-Third slot, 4041-Fourth slot, 405-Fifth slot, 4051-Sixth slot, 406-Seventh slot, 4061-Eighth slot, 40 7-Ninth slot, 4071-Tenth slot, 408-Eleventh slot, 4081-Twelfth slot; 5-Third roller, 501-Second motor, 502-Fifth bearing, 503-Sixth bearing, 6-Fourth roller, 601-Seventh bearing, 602-Eighth bearing, 7-Fifth roller, 701-Third motor, 702-Ninth bearing, 703-Tenth bearing, 8-Sixth roller, 801-Eleventh bearing, 802-Twelfth bearing, 9-First light sensor, 10-Second light sensor, 11-Guiding device. Detailed Implementation

[0053] The present invention will be further described below with reference to specific embodiments, but this does not constitute any limitation on the present invention.

[0054] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0055] In the description of this invention, unless otherwise expressly specified and limited, the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0056] Example 1

[0057] This embodiment provides an automatic peeling device for planar coatings, combined with... Figures 1-9 The specific structural details are as follows:

[0058] The surface coating stripping device includes a cutter head assembly, a feeding and discharging assembly, a drive assembly, and a frame;

[0059] The cutter head assembly is located on the frame and its rotation speed and direction are controlled by the drive assembly. It is used to remove the coating of planar materials.

[0060] Specifically, the cutter head assembly includes a first roller 1 and a second roller 2 arranged in the same vertical plane. A cutter 3 is disposed on the outer surface of the second roller. The cutter 3 is configured as a single blade, and each blade has two actual contact points between its outer diameter and the coating on the surface of the planar material. Each blade forms a trajectory on the planar structure of the second roller unfolded along any generatrix, and the shape of the trajectory is as follows: The curve is formed by connecting two line segments of a sine wave curve with each period y = sinx in sequence. There is a gap between the outer surface of the first roller 1 and the outer diameter of the cutter 3. The vertical height of the gap is 1.5mm-2.0mm, which can be adjusted according to the thickness of the flat material. The gap provides space for the peeling movement of the coating on the surface of the flat material, ensuring the best peeling effect of the coating on the surface of the flat material.

[0061] The removal effect value of the coating on the surface of a planar material is β, which is the ratio of the area remaining after the coating on the surface of the planar material is removed to the total area of ​​the original coating. The smaller β is, the better the removal effect of the coating on the surface of the planar material.

[0062] The relationship between the material hardness value of the first roller 1 and the coating removal effect value β of the planar material is: β i =0.2286*sin(0.8724x) i +1.687)+0.9308*sin(1.648x i -1.179)+0.01085*sin(5.162x i -1.5)

[0063] +0.7472*sin(1.681x i+2.029)+0.002122*sin(6.838x i +1.502)

[0064] 30≤x i ≥60 (i=1,2,...,n)

[0065] x i ∈Z

[0066] Where, x i This represents the hardness value when the first roller 1 is made of type i rubber.

[0067] β i This represents the peeling effect value when the first roller 1 is made of type i rubber.

[0068] n is the total number of models of the first roller 1.

[0069] sin is the sine function;

[0070] In this embodiment, the objective function β can be solved using Newton's method. i When x is at its minimum i The value is 45.

[0071] The first roller 1 has a diameter of 10mm and a length of 100mm, the second roller 2 has a diameter of 7.5mm and a length of 120mm, the first roller 1 is made of EPM rubber with a Shore hardness of 45HA, the second roller 2 is made of 420A stainless steel with a hardness of 56HRC, and the cutter 3 is made of 420A stainless steel with a hardness of 56HRC.

[0072] The feeding and discharging components are located on the same side or both sides of the frame and are used to feed flat material into the cutter head and discharge the material after the coating has been removed; the drive component includes one or more sets of motors and bearings, controls the cutter head assembly, and is fixed on the frame.

[0073] Specifically, the two ends of the first roller 1 are respectively connected to the first bearing 101 and the second bearing 102, and the first bearing 101 and the second bearing 102 are fixedly connected to the two ends of the frame 4; one end of the second roller 2 is connected to the third bearing 205, and the third bearing 205 is fixedly connected to one end of the frame 4; the other end of the second roller 2 passes through the fourth bearing 206 and is fixedly connected to the inner hole of the drive wheel 201; the outer gear teeth of the drive wheel 201 mesh with the outer gear teeth of the driven wheel 202 and are connected to the conveyor belt 203; the inner hole of the driven wheel 202 is connected to the output shaft of the first motor 204.

[0074] The frame 4 has a feed inlet 401 and a discharge outlet 402 at both ends; the feed inlet 401 has a vertical height of 1.5 mm and a horizontal length of 19.5 mm, and the discharge outlet 402 has a vertical height of 1.5 mm and a horizontal length of 19.5 mm.

[0075] The frame 4 is also provided with 12 slots at both ends. The first slot 403 is used to fix the first bearing 101, the second slot 4031 is used to fix the second bearing 102, the third slot 404 is used to fix the third bearing 205, and the fourth slot 4041 is used to fix the fourth bearing 206. The other 8 slots, the fifth slot 405 and the sixth slot 4051, the seventh slot 406 and the eighth slot 4061, the ninth slot 407 and the tenth slot 4071, the eleventh slot 408 and the twelfth slot 4081, are respectively used to fix the fifth bearing 502 and the sixth bearing 503 connected to both ends of the third roller 5, the seventh bearing 601 and the eighth bearing 602 connected to both ends of the fourth roller 6, the ninth bearing 702 and the tenth bearing 703 connected to both ends of the fifth roller 7, and the eleventh bearing 801 and the twelfth bearing 802 connected to both ends of the sixth roller 8.

[0076] The third roller 5, the fourth roller 6, the fifth roller 7, and the sixth roller 8 are made of EPM rubber with a Shore hardness of 45HA.

[0077] The length of the third roller 5, the fourth roller 6, the fifth roller 7, and the sixth roller 8 is 120mm, and the diameter of the third roller 5, the fourth roller 6, the fifth roller 7, and the sixth roller 8 is 7.5mm.

[0078] The center lines of the third roller 5 and the fifth roller 7 are arranged on the same horizontal plane, the center lines of the third roller 5 and the fourth roller 6 are arranged on the same vertical plane, the center lines of the fifth roller 7 and the sixth roller 8 are arranged on the same vertical plane, and the center lines of the fourth roller 6 and the sixth roller 8 are arranged on the same horizontal plane.

[0079] The gap between the outer surface of the third roller 5 and the outer surface of the fourth roller 6 is 1.5 mm, and the gap between the outer surface of the fifth roller 7 and the outer surface of the sixth roller 8 is 1.5 mm.

[0080] One end of the third roller 5 is connected to the fifth bearing 502, which is connected to one end of the frame 4. The other end of the third roller 5 passes through the sixth slot 4051, through the sixth bearing 503, and one end of the frame 4, and is sequentially connected to the first coupling 504 and the output shaft of the second motor 501. One end of the fifth roller 7 is connected to the ninth bearing 702, which is connected to one end of the frame 4. The other end of the fifth roller 7 passes through the tenth slot 4071, through the tenth bearing 703, and one end of the frame 4, and is sequentially connected to the second coupling 704 and the output shaft of the third motor 701.

[0081] Example 2

[0082] The device provided in this embodiment differs from that in Embodiment 1 in that: the cutter 3 is set as three identical blades, and any one of the blades has two actual contact points with the planar material. Any one of the blades forms a trajectory on the planar structure of the second roller unfolded along any generatrix. The shape of the trajectory is a broken line composed of two line segments connected end to end in sequence. The trajectories formed by the three blades of the cutter 3 on the planar structure of the roller unfolded along any generatrix do not intersect each other.

[0083] Example 3

[0084] This embodiment describes the workflow of the device provided in Embodiment 1, with specific details as follows:

[0085] Combination Figures 1-9 When one end of the planar material passes through the feed inlet 401 via the guide device 11 and enters the gap between the third roller 5 and the fourth roller 6, the third roller 5 and the fourth roller 6 press and fix one end of the planar material. The second motor 501 rotates to drive the third roller 5 to rotate forward, and one end of the planar material also moves forward driven by the third roller 5. The fourth roller 6 rotates backward with the movement of the planar material and the third roller 5 to assist the overall forward movement of the planar material. When one end of the planar material moves forward to the gap between the fifth roller 7 and the sixth roller 8, it is pressed and fixed by the fifth roller 7 and the sixth roller 8. At this time, the other end of the planar material moves to enter the gap between the third roller 5 and the fourth roller 6, and is pressed and fixed by the third roller 5 and the fourth roller 6. The coating area on the surface of the planar material is positioned in the middle of the gap between the first roller 1 and the cutter 3. The second motor 501 then stops rotating, and the first motor 204 starts rotating to drive the drive wheel 201. The drive wheel 201 drives the meshing conveyor belt 203, which in turn drives the driven wheel 202. The driven wheel 202 drives the second roller 2 to rotate, and the cutter 3 on the second roller 2 also rotates with it. The cutter 3 is a single blade, and there are two actual contact points between the cutter 3 and the planar material. The cutter 3 forms a trajectory on the planar structure of the second roller along any generatrix. The shape of the trajectory is a sine wave curve with π periods of y = sinx. The rotation of the cutter 3 generates mutual friction with the surface coating of the planar material, peeling off the surface coating of the planar material into fragments. The peeling marks produced by the cutter 3 in one complete peeling of the planar material surface are multiple areas less than or equal to 13 times π. 2The superposition of rectangles multiplied by the square of the second roller diameter is used to ensure the quality of the coating removal on the surface of the planar material. After the coating removal work is completed, the third motor 701 starts to rotate, driving the fifth roller 7 to rotate forward, forcing one end of the planar material to continue to move forward. The sixth roller 8 rotates backward with the movement of the planar material and the third roller 5, thereby assisting the planar material to move forward further as a whole until one end of the planar material completely leaves the discharge port 402.

[0086] Example 4

[0087] This embodiment describes the workflow of the device provided in Embodiment 2, with specific details as follows:

[0088] Combination Figures 1-9When one end of the planar material passes through the feed inlet 401 via the guide device 11 and enters the gap between the third roller 5 and the fourth roller 6, the first photosensitive sensor 9, located vertically above the fourth roller 6, identifies the edge of the planar material in the direction of its forward movement. Simultaneously, the second photosensitive sensor 10, located vertically above the sixth roller 8, acquires the recognition signal from the first photosensitive sensor 9. The third roller 5, in conjunction with the fourth roller 6, presses and fixes one end of the planar material. Upon receiving the recognition signal, the control module controls the first motor 204 to reverse and controls the second motor 501 and the third motor 701 to begin rotating forward. The second motor 501 rotates to drive... The third roller 5 rotates forward, causing one end of the planar material to move forward as well. The fourth roller 6 rotates backward along with the planar material and the third roller 5, thus assisting the overall forward movement of the planar material. When the other end of the planar material moves into the gap between the fifth roller 7 and the sixth roller 8, the middle part of the planar material moves forward into the gap between the fifth roller 7 and the sixth roller 8, where it is pressed and fixed by the fifth roller 7 and the sixth roller 8. The second light sensor 10, positioned vertically above the sixth roller 8, detects the edge of the other end of the planar material in the direction of its movement, and the first light sensor 9 simultaneously acquires the second light sensor's signal. The sensor 10's identification signal, obtained twice, allows the control module to calculate the length of the planar material from one end to the other. At this time, the control module controls the second motor 501 and the third motor 701 to reverse, causing the planar material to return along its original path in a return motion. The first motor 204 rotates forward, driving the drive wheel 201. The drive wheel 201 drives the meshing conveyor belt 203, which in turn drives the driven wheel 202. The driven wheel 202 then drives the second roller 2 to rotate. The cutter 3 mounted on the second roller 2 also rotates with the second roller 2. Three identical blades are used, with each blade having two actual contact points with the planar material. Each blade forms a trajectory on the planar structure of the second roller along any generatrix. The trajectory is a broken line composed of two line segments connected end-to-end. The trajectories formed by the three blades on the planar structure of the roller do not intersect each other. The rotation of the cutter 3 generates friction between the cutter 3 and the surface coating of the planar material, peeling off the surface coating into fragments. The peeling marks produced by the cutter 3 in a single complete peeling operation on the planar material surface are multiple marks with an area less than or equal to 13 times π. 2The superposition of rectangles multiplied by the square of the second roller diameter ensures the quality of coating removal from the surface of the flat material. After the coating removal is completed, the third motor 701 continues to rotate, driving the fifth roller 7 to rotate forward, forcing the flat material to continue to move backward. The sixth roller 8 rotates backward with the movement of the flat material and the third roller 5, thereby assisting the flat material to move backward further as a whole, exiting from the inlet until both ends of the flat material are completely away from the inlet.

[0089] In summary, the blade structure of the planar coating removal device of the present invention can completely remove the coating of planar materials without damaging the planar materials; the design of the feeding and discharging components and the drive components can automatically and efficiently complete the removal of the coating of planar materials.

[0090] It should be noted that the embodiments described above are only for explaining the present invention and do not constitute any limitation on the present invention. The present invention has been described with reference to typical embodiments, but it should be understood that the words used therein are descriptive and explanatory terms, not limiting terms. Modifications can be made to the present invention within the scope of the claims, and revisions can be made to the present invention without departing from the scope and spirit of the present invention. Although the present invention described herein relates to specific methods, materials, and embodiments, it does not mean that the present invention is limited to the specific examples disclosed herein; on the contrary, the present invention can be extended to all other methods and applications with the same function.

Claims

1. An automatic peeling device for planar coatings, characterized in that, The device includes a cutter head assembly, a feeding and discharging assembly, a drive assembly, and a frame; The cutter head assembly is located on the frame and its rotation speed and direction are controlled by the drive assembly. It is used to remove the coating of planar materials. The cutter head assembly includes a first roller 1 and a second roller 2 arranged in the same vertical plane. A cutter 3 is disposed on the outer surface of the second roller 2. The cutter 3 is configured as a single blade or a combination of multiple blades, with each blade having 1 to 2 actual contact points between its outer diameter and the coating. The blade forms a trajectory on the planar structure of the second roller 2 unfolded along any generatrix. The shape of the trajectory includes a shape greater than or equal to... A sine wave curve with a period of y = sinx, a broken line or curve composed of two or more line segments connected end to end in sequence; when set as multiple combined blades, the trajectories formed by each blade on the planar structure of the second roller 2 with any generatrix do not intersect each other. The first roller 1 is made of EPM rubber with a Shore hardness range of 30HA-60HA, and the second roller 2 is made of metal with a hardness of 56HRC. The cutter 3 has the same material hardness as the second roller. The removal effect value of the coating on the surface of the planar material is β, where β is the ratio of the area remaining after the coating on the surface of the planar material is removed to the total area of ​​the original surface coating. The smaller β is, the better the removal effect of the coating on the surface of the planar material. The relationship between the material hardness value of the first roller 1 and the coating removal effect value of the planar material is as follows: b i =0.2286*sin(0.8724x i +1.687)+0.9308*sin(1.648x i -1.179)+0.01085*sin(5.162x i -1.5)+0.7472*sin(1.681x i +2.029)+0.002122*sin(6.838x i +1,502) 30≤x i ≥60(i=1,2,...,n) x i ∈Z Where, x i This represents the hardness value when the first roller 1 is made of type i rubber. β i This represents the peeling effect value when the first roller 1 is made of type i rubber. n is the total number of models of the first roller 1. sin is the sine function; The feeding and discharging components are located on the same side or both sides of the frame and are used to feed flat material into the cutter head assembly and to discharge the flat material after the coating has been removed. The drive assembly includes one or more sets of motors and bearings, controls the cutter head assembly, and is fixed on the frame; The frame 4 is also provided with 12 slots at both ends. The first slot 403 is used to fix the first bearing 101, the second slot 4031 is used to fix the second bearing 102, the third slot 404 is used to fix the third bearing 205, the fourth slot 4041 is used to fix the fourth bearing 206, and the other 8 slots, the fifth slot 405 and the sixth slot 4051, the seventh slot 406 and the eighth slot 4061, the ninth slot 407 and the tenth slot 4071, the eleventh slot 408 and the twelfth slot 4081 are respectively used to fix the fifth bearing 502 and the sixth bearing 503 connected to both ends of the third roller 5, the seventh bearing 601 and the eighth bearing 602 connected to both ends of the fourth roller 6, the ninth bearing 702 and the tenth bearing 703 connected to both ends of the fifth roller 7, and the eleventh bearing 801 and the twelfth bearing 802 connected to both ends of the sixth roller 8; One end of the third roller 5 is connected to the fifth bearing 502, which is connected to one end of the frame 4. The other end of the third roller 5 passes through the sixth slot 4051, through the sixth bearing 503 and one end of the frame 4, and is sequentially connected to the first coupling 504 and the output shaft of the second motor 501. One end of the fifth roller 7 is connected to the ninth bearing 702, which is connected to one end of the frame 4. The other end of the fifth roller 7 passes through the tenth slot 4071, through the tenth bearing 703 and one end of the frame 4, and is sequentially connected to the second coupling 704 and the output shaft of the third motor 701.

2. The apparatus according to claim 1, characterized in that, There is a gap between the outer surface of the first roller 1 and the outer diameter of the cutter 3, the gap being 1.5mm-2.0mm, which provides space for the peeling motion of the coating on the surface of the planar material.

3. The apparatus according to claim 1, characterized in that, The diameter of the first roller 1 is larger than the diameter of the second roller 2.

4. The apparatus according to claim 3, characterized in that, The ratio of the diameter of the first roller 1 to the diameter of the second roller 2 is (1.30-1.45):

1.

5. The apparatus according to claim 1, characterized in that, The ratio of the length of the first roller 1 to the diameter of the first roller 1 is (9-11):

1.

6. The apparatus according to claim 5, characterized in that, The ratio of the length of the first roller 1 to the diameter of the first roller 1 is 10:

1.

7. The apparatus according to claim 1, characterized in that, The ratio of the length of the second roller 2 to the diameter of the second roller 2 is (15-17):

1.

8. The apparatus according to claim 7, characterized in that, The ratio of the length of the second roller 2 to the diameter of the second roller 2 is 16:

1.

9. The apparatus according to claim 1, characterized in that, The feeding and discharging assembly includes a guiding device 11, a feed inlet 401, and a discharge outlet 402. The feed inlet 401 and the discharge outlet 402 are located at one end of the frame 4, and the guiding device 11 is located at the front end of the feed inlet 401. The vertical height of the feed inlet 401 is 1.5mm-2.0mm, and the horizontal length is 19mm-20mm. The vertical height and horizontal length of the discharge outlet 402 are the same as those of the feed inlet 401.

10. The apparatus according to claim 1, characterized in that, The drive assembly includes bearings and a motor; one side of the first bearing 101 and the second bearing 102 are respectively connected to the two ends of the first roller 1; the other side of the first bearing 101 and the second bearing 102 are fixedly connected to one end of the frame 4; one end of the second roller 2 is connected to the third bearing 205, the third bearing 205 is fixedly connected to one end of the frame 4, and the other end of the second roller 2 passes through the fourth bearing 206 and is fixedly connected to the inner hole of the drive wheel 201; the outer gear teeth of the drive wheel 201 mesh with the outer gear teeth of the driven wheel 202 and are connected to the conveyor belt 203, and the inner hole of the driven wheel 202 is connected to the output shaft of the first motor 204.

11. The apparatus according to claim 1, characterized in that, The outer surface of the third roller 5 and the outer surface of the fourth roller 6 are provided with a gap of 1.5mm-2.0mm, and the outer surface of the fifth roller 7 and the outer surface of the sixth roller 8 are provided with a gap of 1.5mm-2.0mm.

12. The apparatus according to claim 1, characterized in that, The material and hardness of the third roller 5, the fourth roller 6, the fifth roller 7, and the sixth roller 8 are the same as those of the first roller 1.

13. The apparatus according to claim 1, characterized in that, The center lines of the third roller 5 and the fourth roller 6 are arranged in the same vertical plane, the center lines of the fifth roller 7 and the sixth roller 8 are arranged in the same vertical plane, the center lines of the third roller 5 and the fifth roller 7 are arranged in the same horizontal plane, and the center lines of the fourth roller 6 and the sixth roller 8 are arranged in the same horizontal plane.

14. The apparatus according to claim 1, characterized in that, The diameter of the third roller 5, the fourth roller 6, the fifth roller 7, and the sixth roller 8 is the same as that of the first roller 1, and the length of the third roller 5, the fourth roller 6, the fifth roller 7, and the sixth roller 8 is the same as that of the first roller 1; the length-to-diameter ratio of the third roller 5, the fourth roller 6, the fifth roller 7, and the sixth roller 8 is 9-11.

15. The apparatus according to claim 14, characterized in that, The length-to-diameter ratio of the third roller 5, the fourth roller 6, the fifth roller 7, and the sixth roller 8 is 10.

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