Sorting device for surface defects of sheet metal

Abstract

This utility model belongs to the field of sheet metal production technology, specifically relating to a sorting device for sheet metal surface defects. The device includes: a roller conveyor, comprising a frame and several equidistantly arranged conveyor rollers; each conveyor roller is connected to a bearing on the frame; a lifting conveyor, disposed within the frame; a vision component, comprising: an industrial camera disposed above the lifting conveyor; the industrial camera is adapted to acquire and upload image data of the sheet metal surface; symmetrically disposed on both sides of the frame, comprising: an open recycling box; and a main control module electrically connected to the roller conveyor, the lifting conveyor, and the industrial camera. This sheet metal surface defect sorting device uses the main control module to judge based on the image data uploaded by the industrial camera. When a product is defective, the main control module controls the lifting conveyor to lift the sheet metal and transport it to the corresponding open recycling box, thereby achieving automatic and accurate sorting and recycling, avoiding subsequent manual secondary sorting, and significantly reducing the intensity of manual labor.

Description

Technical Field

[0001] This utility model belongs to the field of sheet metal production technology, and specifically relates to a sorting device for surface defects of sheet metal. Background Technology

[0002] During the production of wood panels, various defects such as scratches, pits, cracks, color differences, stains, and knots (in wood) can easily appear on the surface of the panels due to factors such as raw materials, production processes, equipment wear and tear, or environmental conditions.

[0003] Currently, many factories still rely primarily on manual visual inspection and sorting. This method suffers from problems such as low efficiency, high labor intensity, susceptibility to subjective factors, and a high rate of missed inspections. To avoid these issues, some companies purchase automated sorting equipment for inspection, but these systems typically only determine whether an item is "qualified" or "unqualified," and cannot differentiate the degree of defect or guide subsequent processing.

[0004] Therefore, in order to solve the above problems, it is necessary to design a sorting device for surface defects of sheet metal. Utility Model Content

[0005] The purpose of this invention is to provide a sorting device for surface defects of sheet metal to solve the technical problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a sorting device for surface defects of sheet metal, comprising: A roller conveyor includes: a frame and a plurality of equally spaced conveying rollers; wherein Each of the conveying rollers is connected to the frame bearings; A lifting conveyor is installed inside the frame, between two adjacent conveyor rollers, and is suitable for lifting and conveying the plates on the conveyor rollers. The vision component includes: an industrial camera positioned above the lifting conveyor; wherein The industrial camera is suitable for acquiring and uploading image data of the sheet material surface. The recycling components are symmetrically arranged on both sides of the rack, and include: open recycling bins; The main control module is electrically connected to the roller conveyor, the lifting conveyor, and the industrial camera; among which... The main control module makes judgments based on the image data uploaded by the industrial camera. When the product is unqualified, it controls the lifting conveyor to lift the plate and transport it to the corresponding open recycling box.

[0007] Furthermore, the vision component also includes: a support frame mounted on the rack and two supplementary lights mounted on the rack; wherein The industrial camera is mounted on a support frame; and The two supplementary lights are positioned on either side of the industrial camera.

[0008] Furthermore, the recycling assembly also includes: telescopic components disposed on both sides of the frame, a positioning plate connected to the telescopic end of the telescopic components, and a weighing sensor embedded in the positioning plate; wherein The open recycling box is placed on the positioning plate and in contact with the weighing sensor; and The weighing sensor and the telescopic component are electrically connected to the main control module; The main control module is adapted to control the extension length of the telescopic component based on the weight data uploaded by the weighing sensor.

[0009] Furthermore, the roller conveyor also includes: a proximity sensor mounted on the frame and a first motor mounted on the frame; wherein The adjacent conveyor rollers are connected by a transmission assembly; The output shaft of the first motor is connected to any of the conveying rollers; The proximity sensor and the first motor are electrically connected to the main control module; and When the proximity sensor detects that the plate on the conveyor roller has moved to a designated position, it sends an electrical signal to the main control module. The main control module controls the first motor to stop based on the electrical signal sent by the proximity sensor.

[0010] Furthermore, the lifting conveyor includes: two bases mounted on a frame, cylinders mounted on the bases, a fixed plate connected to the two cylinders, a U-shaped plate at the bottom of the fixed plate, a first rotating shaft connected to the bearings of the U-shaped plate, main synchronous pulleys sleeved at both ends of the first rotating shaft, two pairs of first wheel seats symmetrically arranged on both sides of the top of the fixed plate, auxiliary synchronous pulleys connected to the bearings of each pair of first wheel seats, and a synchronous belt wound around the main synchronous pulley and the two auxiliary synchronous pulleys on the same side; wherein The fixing plate is provided with two clearance parts; The synchronous belt passes through the avoidance section; The two synchronous belts are located between two adjacent conveyor rollers, respectively; The first rotating shaft is adapted to drive two main synchronous pulleys to rotate when rotating. The two main synchronous pulleys drive corresponding auxiliary synchronous pulleys to rotate through two synchronous belts, so that the synchronous belts convey the plate. The two cylinders are electrically connected to the main control module; The main control module is adapted to control the extension of the two cylinders so that the timing belt contacts the plate.

[0011] Furthermore, the lifting conveyor also includes: a second motor mounted on the U-shaped plate, a first sprocket sleeved on the output shaft of the second motor, a second sprocket sleeved on the first rotating shaft, and a chain wound around the first sprocket and the second sprocket; wherein The second motor is electrically connected to the main control module; When the second motor starts, it drives the first sprocket to rotate. The first sprocket drives the second sprocket to rotate via a chain. The second sprocket drives the first shaft to rotate.

[0012] Furthermore, the lifting conveyor also includes: two second rotating shafts connected to the U-shaped plate bearing and limiting wheels sleeved at both ends of the second rotating shafts; wherein The two limiting wheels are located above and on both sides of the main synchronizing wheel; and The two limiting wheels contact the timing belt and limit its movement.

[0013] Furthermore, the lifting conveyor also includes: a pair of second wheel seats symmetrically arranged on both sides of the top of the fixed plate and support wheels connected by bearings to the two second wheel seats; wherein The support wheel is located between two auxiliary synchronous wheels on the same side; and The support wheel is adapted to contact the timing belt.

[0014] Furthermore, the lifting conveyor also includes: four guide columns disposed at the bottom of the fixed plate; wherein The four guide posts pass through the corresponding bases and are slidably connected to the bases.

[0015] The beneficial effects of this utility model are: (I) The sheet material of this utility model is placed on the corresponding conveyor roller of the roller conveyor. The conveyor roller rolls under the drive of external power to transport the sheet material directly under the industrial camera. At this time, the industrial camera acquires images and uploads the acquired image data to the main control module in real time. The main control module makes a judgment. If the sheet material is determined to be without defects (qualified), the main control module does not trigger the lifting conveyor to act and controls the conveyor roller to continue rolling, transporting the qualified sheet material to the downstream process of the production line. If the sheet material is determined to have minor defects, the main control module controls the lifting conveyor to lift the sheet material and transport it into the open recycling box on one side. If the sheet material is determined to have serious defects, the main control module controls the lifting conveyor to lift the sheet material and transport it into the open recycling box on the other side. Through the above steps, automatic and accurate sorting and recycling are achieved, avoiding subsequent manual secondary sorting and greatly reducing the intensity of manual labor.

[0016] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 The three-dimensional representation of the preferred embodiment of this utility model. Figure 1 ; Figure 2 The three-dimensional representation of the preferred embodiment of this utility model. Figure 2 ; Figure 3 This is a perspective view of a preferred embodiment of the roller conveyor and the lifting conveyor of this utility model; Figure 4 This is a three-dimensional preferred embodiment of the lifting conveyor of this utility model. Figure 1 ; Figure 5 This is a three-dimensional preferred embodiment of the lifting conveyor of this utility model. Figure 2 ; Figure 6 This is a three-dimensional preferred embodiment of the lifting conveyor of this utility model. Figure 3 .

[0020] In the picture: Roller conveyor 1, frame 101, conveyor roller 102, proximity sensor 103, first motor 104; Lifting conveyor 2, base 201, cylinder 202, fixed plate 203, clearance part 2031, U-shaped plate 204, first rotating shaft 205, main synchronous pulley 206, first wheel seat 207, auxiliary synchronous pulley 208, synchronous belt 209, second motor 210, first sprocket 211, second sprocket 212, chain 213, second rotating shaft 214, limit wheel 215, second wheel seat 216, support wheel 217, guide column 218; Vision component 3, industrial camera 301, support frame 302, supplementary light 303; Recycling component 4, open recycling box 401, telescopic component 402, positioning plate 403, weighing sensor 404. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example 1

[0022] like Figures 1 to 6 As shown, this embodiment provides a sorting device for surface defects in sheet metal, including: A roller conveyor 1 includes: a frame 101 and a plurality of equidistantly arranged conveyor rollers 102; wherein each conveyor roller 102 is connected to the frame 101 by a bearing; a lifting conveyor 2 is disposed within the frame 101, located between two adjacent conveyor rollers 102, and is adapted to lift and convey the sheet material on the conveyor rollers 102; a vision component 3 includes: an industrial camera 301 disposed above the lifting conveyor 2; wherein the industrial camera 301 is adapted to acquire and upload image data of the sheet material surface; a recycling component 4 symmetrically disposed on both sides of the frame 101 includes: an open recycling box 401; and a main control module, which is connected to the roller conveyor 1, the lifting conveyor 2, and the industrial camera 301. 1. Electrical connection; wherein the main control module judges based on the image data uploaded by the industrial camera 301, and when the product is unqualified, controls the lifting conveyor 2 to lift the board and transport it to the corresponding open recycling box 401; wherein the conveying roller 102 is adapted to transport the board to the bottom of the industrial camera 301 when rolling; wherein by setting two sets of recycling components 4, it is used to hold boards with minor defects and boards with serious defects, thereby achieving the effect of distinguishing and recycling the boards; wherein by setting the open recycling box 401, it is possible to facilitate the lifting conveyor 2 to transport the board and limit the board; wherein the main control module adopts, but is not limited to, PLC control.

[0023] In this embodiment, the sheet material is placed on the corresponding conveying roller 102 of the roller conveyor 1. The conveying roller 102 rolls under the drive of an external power source to transport the sheet material directly below the industrial camera 301. At this time, the industrial camera 301 acquires images and uploads the acquired image data to the main control module in real time. The main control module makes a judgment. If the sheet material is determined to be defect-free (qualified), the main control module does not trigger the lifting conveyor 2 to operate and controls the conveying roller 102 to continue rolling, transporting the qualified sheet material to the downstream process of the production line. If the sheet material is determined to have a minor defect, the main control module controls the lifting conveyor 2 to lift the sheet material and transport it into the open recycling box 401 on one side. If the sheet material is determined to have a serious defect, the main control module controls the lifting conveyor 2 to lift the sheet material and transport it into the open recycling box 401 on the other side. Through the above steps, automatic and accurate sorting and recycling are achieved, avoiding subsequent manual secondary sorting and greatly reducing the intensity of manual labor.

[0024] The vision component 3 further includes: a support frame 302 mounted on the frame 101 and two supplementary lights 303 mounted on the frame 101; wherein the industrial camera 301 is embedded in the support frame 302; and the two supplementary lights 303 are mounted on both sides of the industrial camera 301; wherein LED lights are preferred for the supplementary lights 303 to provide uniform and stable illumination to the surface of the board, eliminate the interference of ambient light on image acquisition, and make the scratches, pits, cracks, color differences, stains and other defects on the surface of the board clearer, avoiding the failure to detect or misjudge defects due to insufficient light.

[0025] The recycling assembly 4 further includes: telescopic components 402 disposed on both sides of the frame 101, a positioning plate 403 connected to the telescopic ends of the telescopic components 402, and a weighing sensor 404 embedded in the positioning plate 403; wherein the open recycling box 401 is placed on the positioning plate 403 and in contact with the weighing sensor 404; and the weighing sensor 404 and the telescopic components 402 are electrically connected to the main control module; the main control module is adapted to control the telescopic length of the telescopic components 402 according to the weight data uploaded by the weighing sensor 404; wherein the telescopic components 402 are, but are not limited to, electric push rods or cylinders; wherein by setting the positioning plate 403, the open recycling box 401 is positioned... The 01 provides support and positioning to prevent the open recycling box 401 from sliding on the positioning plate 403. By setting a weighing sensor 404 to detect the weight inside the open recycling box 401, the main control module can determine the number of layers of boards inside the open recycling box 401 and control the retraction length of the telescopic component 402. In the initial state, the telescopic component 402 is extended to its maximum length, and the inner wall of the open recycling box 401 is flush with the height of the boards lifted by the lifting conveyor 2 to reduce the height difference. After the lifting conveyor 2 transports the boards into the open recycling box 401, the weighing sensor 404 detects an increase in weight, and the main control module controls the telescopic component 402 to retract so as not to affect the insertion of the next board.

[0026] The roller conveyor 1 further includes: a proximity sensor 103 mounted on the frame 101 and a first motor 104 mounted on the frame 101; wherein adjacent conveying rollers 102 are connected by a transmission assembly; the output shaft of the first motor 104 is connected to any conveying roller 102; the proximity sensor 103 and the first motor 104 are electrically connected to the main control module; and when the proximity sensor 103 detects that the plate on the conveying roller 102 has moved to a designated position, it sends an electrical signal to the main control module; the main control module controls the first motor 104 to stop according to the electrical signal sent by the proximity sensor 103; wherein the transmission assembly (not shown in the figure) adopts, but is not limited to, sprockets, chain drives, or gear drives; by setting the proximity sensor 103, when the conveying roller 102 conveys the plate close to the proximity sensor 103, the proximity sensor 103 sends an electrical signal to the main control module, and the main control module controls the first motor 104 to stop, thereby achieving rapid braking, so that the plate accurately stops at the detection position, and facilitates subsequent conveying to the open recycling box 401.

[0027] The lifting conveyor 2 includes: two bases 201 mounted on a frame 101; cylinders 202 mounted on the bases 201; a fixed plate 203 connected to the two cylinders 202; a U-shaped plate 204 mounted at the bottom of the fixed plate 203; a first rotating shaft 205 bearing-connected to the U-shaped plate 204; main synchronous pulleys 206 sleeved at both ends of the first rotating shaft 205; two pairs of first wheel seats 207 symmetrically arranged on both sides of the top of the fixed plate 203; auxiliary synchronous pulleys 208 bearing-connected to each pair of first wheel seats 207; and a series of synchronous pulleys 208 wound around the main synchronous pulley 206 and the two auxiliary synchronous pulleys 208 on the same side. The synchronous belt 209 is provided with two clearance portions 2031 on the fixed plate 203. The synchronous belt 209 passes through the clearance portions 2031. The two synchronous belts 209 are respectively located between two adjacent conveying rollers 102. The first rotating shaft 205 is adapted to drive the two main synchronous pulleys 206 to rotate when rotating. The two main synchronous pulleys 206 drive the corresponding auxiliary synchronous pulleys 208 to rotate through the two synchronous belts 209, so that the synchronous belt 209 conveys the plate. The two cylinders 202 are electrically connected to the main control module. The main control module is adapted to control the two cylinders 202 to extend so that the synchronous belt 209 contacts the plate.

[0028] The lifting conveyor 2 further includes: a second motor 210 mounted on a U-shaped plate 204, a first sprocket 211 mounted on the output shaft of the second motor 210, a second sprocket 212 mounted on a first rotating shaft 205, and a chain 213 wound around the first sprocket 211 and the second sprocket 212; wherein the second motor 210 is electrically connected to the main control module; when the second motor 210 starts, it drives the first sprocket 211 to rotate, the first sprocket 211 drives the second sprocket 212 to rotate through the chain 213, and the second sprocket 212 drives the first rotating shaft 205 to rotate.

[0029] The lifting conveyor 2 further includes: two second rotating shafts 214 connected to the bearings of the U-shaped plate 204 and limiting wheels 215 sleeved at both ends of the second rotating shafts 214; wherein the two limiting wheels 215 are located above the main synchronous pulley 206 on both sides; and the two limiting wheels 215 contact the synchronous belt 209 and limit the synchronous belt 209; wherein the limiting wheels 215 are also used to tension the synchronous belt 209 to prevent the synchronous belt 209 from slipping.

[0030] The lifting conveyor 2 further includes: a pair of second wheel seats 216 symmetrically arranged on both sides of the top of the fixed plate 203 and a support wheel 217 connected by bearings between the two second wheel seats 216; wherein the support wheel 217 is located between two auxiliary synchronous wheels 208 on the same side; and the support wheel 217 is adapted to contact the synchronous belt 209; wherein the support wheel 217 is also used for the plate to prevent the plate from failing to be conveyed when it is halfway conveyed.

[0031] The lifting conveyor 2 further includes: four guide columns 218 disposed at the bottom of the fixed plate 203; wherein the four guide columns 218 pass through the corresponding base 201 and are slidably connected to the base 201; wherein by setting the guide columns 218 to be slidably connected to the base 201, the lifting action of the fixed plate 203 is provided to guide the lifting action of the fixed plate 203, ensuring that the fixed plate 203 always moves in the vertical direction when the cylinder 202 drives the fixed plate 203 to rise or fall, and avoiding the effect of uneven contact between the synchronous belt 209 and the plate caused by the tilting of the fixed plate 203.

[0032] In this embodiment, when the main control module determines that the board material is unqualified, the main control module controls the two cylinders 202 to extend upwards synchronously. The cylinders 202 drive the fixed plate 203 to rise vertically. At this time, the four guide columns 218 at the bottom of the fixed plate 203 slide upwards synchronously along the base 201, providing precise guidance for the lifting and lowering of the fixed plate 203 and preventing the fixed plate 203 from tilting due to uneven force on one side. During the upward movement of the fixed plate 203, the first wheel seat 207, the auxiliary synchronous wheel 208, and the synchronous belt 209 at the top are driven to rise synchronously. The part of the synchronous belt 209 that passes through the avoidance part 2031 gradually rises above the top surface of the conveyor roller 102 as the fixed plate 203 rises. When the top surface of the synchronous belt 209 is in complete contact with the bottom surface of the unqualified board material and generates a certain supporting force, the main control module controls the cylinders 202 to stop extending. The fixed plate 203 and the synchronous belt 209 remain at the current height. At this time, the board material is separated from the conveyor roller 102 and is completely supported by the synchronous belt 209. After being fully lifted, the main control module controls the second motor 210 to rotate forward or backward. The second motor 210 drives the first sprocket 211 to rotate, and transmits the power to the second sprocket 212 sleeved on the first shaft 205 through the chain 213, causing the second sprocket 212 and the first shaft 205 to rotate synchronously. The main synchronous pulleys 206 at both ends of the first shaft 205 rotate together with the first shaft 205. Since the synchronous belt 209 is wrapped around the main synchronous pulley 206 and the two auxiliary synchronous pulleys 208 on the same side, the main synchronous pulley 206 drives the auxiliary synchronous pulleys 208 to rotate through the meshing transmission of the synchronous belt 209. Under the coordinated drive of the main and auxiliary synchronous pulleys, the synchronous belts 209 on both sides move horizontally at a constant speed in the same direction (towards the corresponding side of the open recycling box 401). The friction between the top surface of the synchronous belt 209 and the bottom surface of the plate causes the plate to move together with the synchronous belt 209, thereby achieving the effect of transferring the unqualified plate from the conveyor roller 102 to the open recycling box 401.

[0033] All the devices selected in this application (parts whose specific structures are not specified) are general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0034] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the shown or discussed mutual couplings, direct couplings, or communication connections may be through some communication interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0037] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0038] In addition, in the various embodiments of this utility model, each functional unit can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0039] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A sorting device for surface defects of a board, characterized in that include: A roller conveyor (1) includes: a frame (101) and a plurality of equally spaced conveying rollers (102); wherein Each of the conveying rollers (102) is connected to the frame (101) by bearings; The lifting conveyor (2) is installed inside the frame (101) and located between two adjacent conveying rollers (102), and is suitable for lifting and conveying the plates on the conveying rollers (102); The vision component (3) includes an industrial camera (301) positioned above the lifting conveyor (2); wherein The industrial camera (301) is suitable for acquiring and uploading image data of the plate surface; The recycling components (4) are symmetrically arranged on both sides of the frame (101), and include: an open recycling box (401). The main control module is electrically connected to the roller conveyor (1), the lifting conveyor (2), and the industrial camera (301); among which The main control module makes a judgment based on the image data uploaded by the industrial camera (301). When the product is unqualified, it controls the lifting conveyor (2) to lift the plate and transport it to the corresponding open recycling box (401).

2. The sorting device for surface defects of sheet metal as described in claim 1, characterized in that, The vision component (3) further includes: a support frame (302) mounted on the frame (101) and two supplementary lights (303) mounted on the frame (101); wherein The industrial camera (301) is embedded in the support frame (302); and The two fill lights (303) are positioned on both sides of the industrial camera (301).

3. The sorting device for surface defects of sheet metal as described in claim 2, characterized in that, The recycling assembly (4) further includes: telescopic components (402) disposed on both sides of the frame (101), a positioning plate (403) connected to the telescopic end of the telescopic component (402), and a weighing sensor (404) embedded in the positioning plate (403); wherein The open recycling box (401) is placed on the positioning plate (403) and in contact with the weighing sensor (404); and The weighing sensor (404) and the telescopic component (402) are electrically connected to the main control module; The main control module is adapted to control the extension length of the telescopic component (402) based on the weight data uploaded by the weighing sensor (404).

4. The sorting device for surface defects of sheet metal as described in claim 3, characterized in that, The roller conveyor (1) further includes: a proximity sensor (103) mounted on the frame (101) and a first motor (104) mounted on the frame (101); wherein Adjacent conveyor rollers (102) are connected by a transmission assembly; The output shaft of the first motor (104) is connected to any of the conveying rollers (102); The proximity sensor (103) and the first motor (104) are electrically connected to the main control module; and When the proximity sensor (103) detects that the plate on the conveyor roller (102) has moved to the designated position, it sends an electrical signal to the main control module; The main control module controls the first motor (104) to stop based on the electrical signal sent by the proximity sensor (103).

5. The sorting device for surface defects of sheet metal as described in claim 4, characterized in that, The lifting conveyor (2) includes: two bases (201) mounted on a frame (101), cylinders (202) mounted on the bases (201), a fixed plate (203) connected to the two cylinders (202), a U-shaped plate (204) mounted at the bottom of the fixed plate (203), a first rotating shaft (205) connected to the bearing of the U-shaped plate (204), main synchronous pulleys (206) sleeved at both ends of the first rotating shaft (205), two pairs of first wheel seats (207) symmetrically arranged on both sides of the top of the fixed plate (203), auxiliary synchronous pulleys (208) connected to the bearing of each pair of first wheel seats (207), and a synchronous belt (209) wound around the main synchronous pulley (206) and the two auxiliary synchronous pulleys (208) on the same side; wherein The fixing plate (203) is provided with two clearance parts (2031); The synchronous belt (209) passes through the avoidance part (2031); The two synchronous belts (209) are respectively located between two adjacent conveyor rollers (102); The first rotating shaft (205) is adapted to drive the two main synchronous pulleys (206) to rotate when rotating. The two main synchronous pulleys (206) drive the corresponding auxiliary synchronous pulleys (208) to rotate through the two synchronous belts (209) respectively, so that the synchronous belts (209) transport the plate. The two cylinders (202) are electrically connected to the main control module; The main control module is adapted to control the extension of the two cylinders (202) so that the synchronous belt (209) contacts the plate.

6. The sorting device for surface defects of sheet metal as described in claim 5, characterized in that, The lifting conveyor (2) further includes: a second motor (210) mounted on a U-shaped plate (204), a first sprocket (211) mounted on the output shaft of the second motor (210), a second sprocket (212) mounted on a first rotating shaft (205), and a chain (213) wound around the first sprocket (211) and the second sprocket (212); wherein The second motor (210) is electrically connected to the main control module; When the second motor (210) starts, it drives the first sprocket (211) to rotate. The first sprocket (211) drives the second sprocket (212) to rotate through the chain (213). The second sprocket (212) drives the first rotating shaft (205) to rotate.

7. The sorting device for surface defects of sheet metal as described in claim 6, characterized in that, The lifting conveyor (2) further includes: two second rotating shafts (214) connected to the bearing of the U-shaped plate (204) and limiting wheels (215) sleeved at both ends of the second rotating shafts (214); wherein The two limiting wheels (215) are located above and on both sides of the main synchronizing wheel (206); and The two limiting wheels (215) contact the timing belt (209) and limit the timing belt (209).

8. The sorting device for surface defects of sheet metal as described in claim 7, characterized in that, The lifting conveyor (2) further includes: a pair of second wheel seats (216) symmetrically arranged on both sides of the top of the fixed plate (203) and support wheels (217) connected by bearings between the two second wheel seats (216); wherein The support wheel (217) is located between two auxiliary synchronous wheels (208) on the same side; and The support wheel (217) is adapted to contact with the synchronous belt (209).

9. The plate surface defect sorting device according to claim 8, characterized in that, The jacking conveyor (2) further comprises four guide columns (218) arranged at the bottom of the fixed plate (203); wherein The four guide columns (218) penetrate through the corresponding base (201) and are in sliding connection with the base (201).

Images