A printed product sorting device based on visual inspection

Abstract

The present invention discloses a printed product sorting device based on visual detection, and relates to the field of sorting, comprising: a frame, on which two relatively parallel mounting rods are obliquely arranged, and a pallet is arranged on the horizontal plane where the lower ends of the mounting rods are located, and printed products can be conveyed on the pallet; a transport frame, fixedly connected to the frame, and a net support is obliquely arranged inside the transport frame; a sub-bracket, which is evenly arranged at the output port of the transport frame, and a static electricity removal member is installed in the sub-bracket; a fixed frame, a driving component and a sorting component are arranged on the mounting rod in sequence from top to bottom, the fixed frame is fixedly connected to the mounting rod, and a detection component is slidably adjusted on the fixed frame, the driving component is adjustably fixed on the mounting rod adjacent to the fixed frame, the sorting component is located on one side of the output end of the driving component, and the sorting component is rotatably arranged on the mounting rod.

Description

Technical Field

[0001] The invention relates to the field of sorting, and in particular to a printed product sorting device based on visual detection. Background Art

[0002] The packaging and printing industry is a discrete manufacturing industry that produces products according to orders, with the characteristics of small batches and a wide variety of products. Among them, plastic packaging printing is one of the packaging and printing categories. Plastic packaging needs to be sorted to separate defective products after printing, or in the same batch of printed products, it needs to be sorted and distinguished according to different printed patterns or colors.

[0003] Because plastic has excellent electrical insulation properties and a special molecular structure, friction is difficult to avoid during the processing of plastic film packaging. As a result, plastic will be charged due to the gain or loss of electrons and it is difficult to transfer free electrons. Printing failures such as printing static electricity and blanks, as well as plastic packaging sticking together are all caused by the static electricity of the plastic packaging. The static electricity eliminator can only reduce the static electricity accumulated on the plastic packaging, but the static electricity cannot be completely eliminated. During the sorting process, it is difficult to avoid the plastic packaging being adsorbed on the sorting device due to the attached static electricity.

[0004] Therefore, it is necessary to provide a printed product sorting device based on visual inspection to solve the problems raised in the above background technology. Summary of the invention

[0005] To achieve the above object, the present invention provides the following technical solution: a printed product sorting device based on visual inspection, comprising:

[0006] A frame, on which two relatively parallel mounting rods are obliquely arranged, and a support plate is arranged on the horizontal plane where the lower ends of the mounting rods are located, and printed products can be conveyed on the support plate;

[0007] A transport rack is fixedly connected to the frame, and the input end of the transport rack is butted against the output end of the pallet, and a net support is obliquely arranged inside the transport rack;

[0008] A plurality of sub-brackets are evenly arranged at the output port of the transport rack, the input end extension of the sub-bracket is butted against the output end of the pallet, the input end extension of the sub-bracket is located above the transport rack, and a static electricity removal element is installed in the sub-bracket;

[0009] A fixing frame, a driving assembly and a sorting assembly are sequentially arranged on the mounting rod from top to bottom, the fixing frame is fixedly connected to the mounting rod, and a detection assembly is slidably arranged on the fixing frame, the end face of the detection assembly faces the support plate, the driving assembly is adjustably fixed on the mounting rod adjacent to the fixing frame, the sorting assembly is located on one side of the output end of the driving assembly, and the sorting assembly is rotatably arranged on the mounting rod.

[0010] Further, preferably, the output end of the static removal element faces the output end of the sub-bracket, the sub-bracket is a vertically placed rib plate, and the rib plate arrangement density of the sub-bracket increases from sparse to dense starting from the input end, and the surface of the net support is in a mesh shape.

[0011] Further, preferably, the detection component comprises:

[0012] A receiving body is arranged in close contact with the fixing frame, and the receiving body is slidably connected with the fixing frame via a guide rod;

[0013] A plurality of camera elements are evenly arranged inside the receiving body, and the end of the camera element vertically extends outward from the lower end surface of the receiving body;

[0014] A plurality of radars are evenly arranged on the receiving body, and the radars are distributed at the corners of the receiving body.

[0015] Further, preferably, the radar is arranged to be inclined relative to the lower end surface of the receiving body, the radar detection boundary at a low position is close to the input end of the pallet, the radar detection boundary at a high position is close to the output end of the pallet, and the imaging range of the camera is facing the surface of the pallet.

[0016] Further, preferably, the driving assembly comprises:

[0017] A movable frame, adjustably fixed on the mounting rod;

[0018] The connecting frame is fixed at the lower end of the movable frame, and the lower end of the connecting frame is provided with three branches, and the driving wheel and two electrostatic wheels are arranged in sequence on the branches.

[0019] Furthermore, preferably, a plurality of protruding rubber strips are provided on the surface of the driving wheel, curved fluff is fixed on the electrostatic wheel, the ends of the driving wheel and the electrostatic wheel are both externally connected to motors for providing power, and the driving wheel and the electrostatic wheel can be controlled to rotate independently.

[0020] Further, preferably, the sorting component comprises:

[0021] A rotating drum is rotatably arranged on the mounting rod, and an end of the rotating drum is externally connected to a motor for providing power;

[0022] A plurality of adsorption plates are arranged and evenly fixed on the surface of the drum, and the surface of the adsorption plates is horizontal and smooth;

[0023] The rebound components are arranged in multiple numbers and are slidably disposed in the rotating drum at the intervals of the adsorption plates, and the rebound components slide radially along the rotating drum.

[0024] Further, as a preference, the rebound assembly includes an elastic head, a sliding rod and a support spring, wherein the sliding rod is arranged to slide radially along the rotating cylinder, and a support spring is arranged between the sliding rod and the rotating cylinder, the support spring drives the sliding rod to slide radially outward along the rotating cylinder, and the elastic head is fixed to the exposed end of the sliding rod, and the exposed end of the elastic head always extends beyond the end face of the adsorption plate before and during work.

[0025] Compared with the prior art, the present invention provides a printed product sorting device based on visual inspection, which has the following beneficial effects:

[0026] In the present invention, printed products that have not been subjected to electrostatic treatment only contact with the elastic head, and rebound after the elastic head is away from the support plate, prompting the printed products to be separated from the elastic head in time and enter the net support for transportation. For printed products that have been subjected to electrostatic treatment, in addition to contact with the elastic head, they will also be in adsorption contact with the adsorption plate. After the two adjacent elastic heads of the adsorption plate are separated from the support plate, the printed products contacted with the adsorption plate are separated. This process increases the output length of the printed products, so that the printed products fall on the input end of the sub-support, and in the process of the printed products accumulating static electricity through the electrostatic wheel, the overspeed rotation of the electrostatic wheel will cause the printed products to slide relative to the driving wheel, so that the printed products have more margin between the driving wheel and the sorting component, which is convenient for the printed products to be adsorbed with the adsorption plate. The whole process uses electrostatic adsorption to cooperate with active control separation to complete sorting, avoiding sorting errors caused by electrostatic adsorption that cause the printed products to be adsorbed with the sorting component. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0028] Figure 1 It is a schematic diagram of the overall structure of a printed product sorting device based on visual inspection;

[0029] Figure 2 A schematic diagram of a static electricity removal component of a printed product sorting device based on visual inspection;

[0030] Figure 3 It is a schematic diagram of the structure of a detection component of a printed product sorting device based on visual detection;

[0031] Figure 4It is a schematic diagram of the structure of a driving component of a printed product sorting device based on visual inspection;

[0032] Figure 5 It is a schematic diagram of the structure of a sorting component of a printed product sorting device based on visual inspection;

[0033] In the figure: 1. frame; 11. mounting rod; 12. support plate; 2. fixing frame; 3. detection component; 31. receiving body; 32. guide rod; 33. camera; 34. radar; 4. driving component; 41. movable frame; 42. connecting frame; 43. driving wheel; 44. electrostatic wheel; 5. sorting component; 51. rotating drum; 52. adsorption plate; 53. rebound component; 531. elastic head; 532. sliding rod; 533. supporting spring; 6. transport frame; 61. net support; 7. sub-bracket; 8. printed products; 9. electrostatic removal component. DETAILED DESCRIPTION

[0034] See also Figure 1-5 In an embodiment of the present invention, a printed product sorting device based on visual detection includes:

[0035] The frame 1 has two relatively parallel mounting rods 11 arranged obliquely thereon, and a support plate 12 is arranged on the horizontal plane where the lower ends of the mounting rods 11 are located, and the printed product 8 can be conveyed on the support plate 12. Specifically, the printed product 8 in this application is a plastic package;

[0036] A transport frame 6 is fixedly connected to the frame 1, and the input end of the transport frame 6 is connected to the output end of the pallet 12, and a net support 61 is obliquely arranged inside the transport frame 6;

[0037] A plurality of sub-brackets 7 are evenly arranged at the output port of the transport rack 6, the input end extension of the sub-bracket 7 is butted against the output end of the pallet 12, the input end extension of the sub-bracket 7 is located above the transport rack 6, and a static electricity removal element 9 is installed in the sub-bracket 7;

[0038] A fixing frame 2, a driving assembly 4 and a sorting assembly 5 are sequentially arranged on the mounting rod 11 from top to bottom. The fixing frame 2 is fixedly connected to the mounting rod 11, and a detection assembly 3 is slidably arranged on the fixing frame 2. The end face of the detection assembly 3 faces the support plate 12, and the driving assembly 4 is adjustably fixed on the mounting rod 11 adjacent to the fixing frame 2. The sorting assembly 5 is located on one side of the output end of the driving assembly 4, and the sorting assembly 5 is rotatably arranged on the mounting rod 11.

[0039] It needs to be explained that, taking the same batch of plastic packaging as an example, if the printed patterns on the plastic packaging are the same, and only some of the text printing colors are different, namely red and blue, now sort out the printed products 8 with red text, and input the printed products 8 from the input end of the pallet 12. When the printed products 8 pass through the pallet 12, they are first detected by the detection component 3, and then the printed products 8 are driven by the drive component 4 to be transported toward the subsequent sorting component 5. For the red-font printed products 8 that meet the conditions, additional static electricity will be added by the drive component 4, and then they will be sorted by the sorting component 5 to the sub-bracket 7 for transportation. Other printed products 8 are transported through the net tray 61. After the printed products 8 are sorted, they will pass through the static electricity removal component 9 during transportation on the sub-bracket 7 and the net tray 61 to complete static electricity elimination, so as to avoid excessive static electricity accumulation in the printed products 8 that affects subsequent processing and use.

[0040] As a preferred embodiment, the output end of the static electricity removal element 9 faces the output end of the sub-bracket 7. The specific static electricity removal element 9 can be a self-discharge induction type or a high-voltage corona discharge type, which ionizes the molecules in the nearby air to form an ion space, and eliminates or reduces the electrons accumulated on the printed product 8 when the printed product 8 passes through the net support 61 and the sub-bracket 7, thereby achieving the purpose of eliminating static electricity. The sub-bracket 7 is a vertically placed rib plate, and the rib plate arrangement density of the sub-bracket 7 from the input end changes from sparse to dense, and the surface of the net support 61 is mesh-shaped. The specific sub-bracket 7 and the net support 61 can effectively reduce the contact area with the printed product 8, and effectively avoid large-area adsorption affecting transportation before the printed product 8 is subjected to static electricity elimination.

[0041] In this embodiment, Figure 3 , the detection component 3 includes:

[0042] A receiving body 31 is disposed in close contact with the fixing frame 2, and the receiving body 31 is slidably connected to the fixing frame 2 via a guide rod 32;

[0043] A plurality of camera elements 33 are evenly arranged inside the receiving body 31, and the end of the camera element 33 extends vertically outward from the lower end surface of the receiving body 31;

[0044] A plurality of radars 34 are evenly arranged on the receiving body 31 , and the radars 34 are distributed at the corners of the receiving body 31 .

[0045] As a preferred embodiment, the radar 34 is arranged to be inclined relative to the lower end surface of the receiving body 31. The detection boundary of the radar 34 at a low position is close to the input end of the pallet 12, and is specifically used to detect that the printed product 8 begins to pass through the pallet 12, and then collects signals to control the camera 33 to start. The detection boundary of the radar 34 at a high position is close to the output end of the pallet 12, and is specifically used to detect that the printed product 8 completely leaves the pallet 12, and then collects signals to control the camera 33 to close. The camera range of the camera 33 faces the surface of the pallet 12.

[0046] It should be explained that by using visual technology to simulate human visual functions with computers, information is extracted from the image of the printed product 8 taken by the camera 33, processed and understood, and finally shape recognition, position positioning and color discrimination are performed. In this embodiment, the text position is first determined and then the font color information is distinguished. When the information determines that the font color is red, the drive component 4 is controlled according to the processed results to assist the sorting process.

[0047] In this embodiment, Figure 4 , the driving assembly 4 comprises:

[0048] A movable frame 41, which is adjustably fixed on the mounting rod 11;

[0049] The connecting frame 42 is fixed to the lower end of the movable frame 41, and three branches are opened at the lower end of the connecting frame 42, and a driving wheel 43 and two electrostatic wheels 44 are sequentially arranged on the branches.

[0050] It should be explained that the driving wheel 43 is kept rotating continuously to assist in the transportation of the printed product 8. When the detection component 3 detects that the font color of the printed product 8 is red, the two electrostatic wheels 44 are controlled to rotate, and the rotation direction of the electrostatic wheels 44 is the same as that of the driving wheel 43. In this process, the electrostatic wheels 44 rotate at an overspeed to speed up the transmission speed of the printed product 8.

[0051] As a preferred embodiment, the surface of the driving wheel 43 is provided with a plurality of protruding rubber strips, and the specific interval arrangement of the protruding rubber strips can effectively drive the transmission of the printed product 8. The electrostatic wheel 44 is fixed with curved fluff. Specifically, during the rotation of the electrostatic wheel 44, the fluff will stretch under the action of centrifugal force, contact and rub the surface of the printed product 8, so that the printed product 8 accumulates more static electricity. When the electrostatic wheel 44 does not rotate, the printed product 8 cannot contact the fluff, thereby preventing the printed product 8 from generating more static electricity. The ends of the driving wheel 43 and the electrostatic wheel 44 are both externally connected to motors for providing power, and the driving wheel 43 and the electrostatic wheel 44 can be controlled to rotate separately.

[0052] In this embodiment, Figure 5 , the sorting component 5 comprises:

[0053] A rotating drum 51 is rotatably disposed on the mounting rod 11, and an end of the rotating drum 51 is externally connected to a motor for providing power;

[0054] The adsorption plates 52 are arranged in multiple numbers and are evenly fixed on the surface of the rotating drum 51, and the surfaces of the adsorption plates 52 are horizontal and smooth;

[0055] The rebound components 53 are arranged in plurality and are slidably disposed in the rotating drum 51 at intervals of the adsorption plates 52 , and the rebound components 53 slide radially along the rotating drum 51 .

[0056] As a preferred embodiment, the rebound assembly 53 includes an elastic head 531, a slide rod 532 and a support spring 533, wherein the slide rod 532 is radially slidably arranged along the rotating drum 51, and a support spring 533 is arranged between the slide rod 532 and the rotating drum 51, and the support spring 533 drives the slide rod 532 to slide radially outward along the rotating drum 51, and the elastic head 531 is fixed on the exposed end of the slide rod 532, wherein the elastic head 531 is made of elastic rubber, and the exposed end of the elastic head 531 always exceeds the end face of the adsorption plate 52 before and during work.

[0057] It needs to be explained that during the operation of the sorting component 5, the drum 51 rotates continuously, the elastic head 531 contacts the printed product 8 and drives the slide bar 532 to slide into the drum 51, and the elastic head 531 squeezes the printed product 8 under the action of the supporting spring 533. Because the surface of the support plate 12 is smooth, the printed product 8 slides on the support plate 12 as the drum 51 rotates and is transported toward the transport rack 6, and the rotation speed of the drum 51 is adapted to the driving wheel 43. Specifically, within a fixed time, the transport distance of the printed product 8 by the driving wheel 43 is the same as the transport distance of the sorting component 5.

[0058] In this process, the printed product 8 that has not been subjected to the electrostatic treatment only contacts with the elastic head 531, and rebounds after the elastic head 531 is away from the support plate 12, so that the printed product 8 is separated from the elastic head 531 in time and enters the net support 61 for transportation. For the printed product 8 that has been subjected to the electrostatic treatment, in addition to contacting with the elastic head 531, it is also adsorbed and contacted with the adsorption plate 52. After the two adjacent elastic heads 531 of the adsorption plate 52 are separated from the support plate 12, the printed product 8 in contact with the adsorption plate 52 is separated. This process increases the output length of the printed product 8, so that the printed product 8 falls on the input end of the sub-bracket 7, and in the process of the printed product 8 accumulating static electricity through the electrostatic wheel 44, the overspeed rotation of the electrostatic wheel 44 will cause the printed product 8 to slide relative to the driving wheel 43, so that the printed product 8 has more margin between the driving wheel 43 and the sorting component 5, which is convenient for the printed product 8 to be adsorbed with the adsorption plate 52. The whole process uses electrostatic adsorption and active control separation to complete the sorting, avoiding sorting errors caused by the adsorption of the printed product 8 with the sorting component 5 due to electrostatic adsorption.

[0059] In the specific implementation, the printed product 8 is input from the input end of the pallet 12. When the printed product 8 passes the pallet 12, it is first detected by the detection component 3. Then the printed product 8 is driven by the driving component 4 to be transported toward the subsequent sorting component 5. For the printed products 8 that meet the conditions, additional static electricity is added by the driving component 4. Then, it is sorted by the sorting component 5 to the sub-bracket 7 for transportation. Other printed products 8 are transported through the net tray 61. After the printed products 8 are sorted, they will pass through the static electricity removal component 9 during transportation on the sub-bracket 7 and the net tray 61 to complete static electricity elimination, so as to avoid excessive static electricity accumulation in the printed products 8 affecting subsequent processing and use.

[0060] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A printed product sorting device based on visual inspection, characterized in that: include: A frame (1) on which two relatively parallel mounting rods (11) are arranged obliquely, and a support plate (12) is arranged on a horizontal plane where the lower ends of the mounting rods (11) are located, and printed products (8) can be transported on the support plate (12); A transport frame (6) is fixedly connected to the frame (1), and the input end of the transport frame (6) is butted against the output end of the support plate (12), and a net support (61) is obliquely arranged inside the transport frame (6); A plurality of sub-brackets (7) are evenly arranged at the output port of the transport rack (6); an extension portion of the input end of the sub-bracket (7) is butted against the output end of the support plate (12); the extension portion of the input end of the sub-bracket (7) is located above the transport rack (6); and a static electricity removal element (9) is installed in the sub-bracket (7); A fixing frame (2), a driving assembly (4) and a sorting assembly (5) are arranged on the mounting rod (11) in order from top to bottom. The fixing frame (2) is fixedly connected to the mounting rod (11), and a detection assembly (3) is slidably and adjustably arranged on the fixing frame (2). The end face of the detection assembly (3) faces the support plate (12), and the driving assembly (4) is adjustably fixed on the mounting rod (11) adjacent to the fixing frame (2). The sorting assembly (5) is located on one side of the output end of the driving assembly (4), and the sorting assembly (5) is rotatably arranged on the mounting rod (11); The sorting assembly (5) comprises: a rotating drum (51) rotatably arranged on the mounting rod (11), and an end of the rotating drum (51) is externally connected to a motor for providing power; A plurality of adsorption plates (52) are arranged and evenly fixed on the surface of the rotating drum (51), and the surface of the adsorption plates (52) is horizontal and smooth; A plurality of rebound components (53) are arranged and slidably disposed in the rotating drum (51) at intervals of the adsorption plates (52), and the rebound components (53) slide radially along the rotating drum (51); The rebound component (53) comprises an elastic head (531), a slide bar (532) and a support spring (533), wherein the slide bar (532) is radially slidably arranged along the rotating cylinder (51), and a support spring (533) is arranged between the slide bar (532) and the rotating cylinder (51), and the support spring (533) drives the slide bar (532) to slide radially outward along the rotating cylinder (51), and the elastic head (531) is fixed to the exposed end of the slide bar (532), and the exposed end of the elastic head (531) always exceeds the end surface of the adsorption plate (52) before and during operation; The driving assembly (4) comprises: A movable frame (41) adjustably fixed on the mounting rod (11); A connecting frame (42) is fixed to the lower end of the movable frame (41), and the lower end of the connecting frame (42) is provided with three branches, and a driving wheel (43) and two electrostatic wheels (44) are sequentially arranged on the branches; The surface of the driving wheel (43) is provided with a plurality of protruding rubber strips, and the electrostatic wheel (44) is fixed with curved fluffs. The ends of the driving wheel (43) and the electrostatic wheel (44) are both externally connected to motors for providing power, and the driving wheel (43) and the electrostatic wheel (44) can be independently controlled to rotate.

2. The printed product sorting device based on visual inspection according to claim 1, characterized in that: The output end of the static electricity removal element (9) faces the output end of the sub-bracket (7); the sub-bracket (7) is a rib plate placed vertically, and the rib plate arrangement density of the sub-bracket (7) increases from sparse to dense from the input end, and the surface of the net support (61) is in a mesh shape.

3. The printed product sorting device based on visual inspection according to claim 1, characterized in that: The detection component (3) comprises: A receiving body (31) is arranged in close contact with the fixing frame (2), and the receiving body (31) is slidably connected to the fixing frame (2) via a guide rod (32); A plurality of camera elements (33) are evenly arranged inside the receiving body (31), and the ends of the camera elements (33) extend vertically outward from the lower end surface of the receiving body (31); A plurality of radars (34) are evenly arranged on the receiving body (31), and the radars (34) are distributed at the corners of the receiving body (31).

4. The printed product sorting device based on visual inspection according to claim 3 is characterized in that: The radar (34) is arranged to be inclined relative to the lower end surface of the receiving body (31); the detection boundary of the radar (34) at a low position is close to the input end of the support plate (12); the detection boundary of the radar (34) at a high position is close to the output end of the support plate (12); and the imaging range of the camera (33) faces the surface of the support plate (12).

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