A detection device for paper tubes before lamination

Abstract

This invention provides a detection device for paper tubes before lamination, belonging to the field of paper tube processing. It includes a workbench with a paper tube discharge box. The outlet of the paper tube discharge box is located at its lower end. The paper tube discharge box has a discharge pusher plate and a vision inspection structure on each side. The discharge pusher plate extends into the paper tube discharge box and pushes the paper tube onto the vision inspection structure. A waste removal structure is located on the other side of the vision inspection structure, and a gripping and placing platform is located on the other side of the waste removal structure. A gripping structure is located on the side of the workbench. The gripping structure can move to the gripping and placing platform and extend into the paper tube, gripping the paper tube by gripping its inner wall.

Description

Technical Field

[0001] This invention belongs to the field of paper tube processing, and particularly relates to a detection device for paper tubes before lamination. Background Technology

[0002] Paper tubes are the most widely used packaging products. Depending on the materials used, they include corrugated cardboard boxes, single-layer cardboard boxes, and various specifications and models. As an indispensable part of modern logistics, packaging paper tubes bear the important responsibility of containing, protecting, and aesthetically pleasing products. After the paper tubes are made, a layer of advertising paper or a paper layer describing the product contents is usually attached to their surface. During this process, the paper tubes need to be fixed in place before lamination. Existing fixing methods often use fixtures to clamp the two ends of the paper tube. In this case, because the two ends of the paper tube are covered by the fixtures, the lamination cannot adhere to the two ends of the paper tube, resulting in blank spaces at the two ends of the paper tube. In addition, the appearance of the paper tubes needs to be inspected before lamination, and paper tubes with unqualified outer surfaces need to be rejected. Usually, this is done by manual identification, which is inefficient and has a high error rate.

[0003] For example, a Chinese utility model patent discloses a paper tube / paper tube tooling rack [application number: CN202223165416.8], which includes a base plate, six support rods fixed to the top of the base plate, each of the six support rods having a vertical tube at its top end, the top end of each of the six support rods penetrating through the vertical tube and extending into the interior of the vertical tube, the outer surfaces of each of the six support rods being slidably connected to the inner surfaces of the vertical tubes, a first ring being fixed between the outer surfaces of the six support rods, a second ring being fixed between the outer surfaces of the six vertical tubes, a height adjustment component being provided between each of the six support rods and the vertical tubes, and four casters being provided at the bottom of the base plate. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing a detection device for paper tubes before lamination.

[0005] To achieve the above objectives, the present invention adopts the following technical solutions: A pre-coating inspection device for paper tubes includes a workbench with a paper tube discharge box. The outlet of the paper tube discharge box is located at its lower end. The paper tube discharge box has a discharge pusher and a vision inspection structure on its two sides. The discharge pusher can extend into the paper tube discharge box and push the paper tube onto the vision inspection structure. The other side of the vision inspection structure has a waste removal structure and a gripping and placing platform. The side of the workbench has a gripping structure that can move to the gripping and placing platform and extend into the paper tube to grip the inner wall of the paper tube.

[0006] In the aforementioned inspection device for paper tubes before lamination, the visual inspection structure includes an inspection placement platform, an inspection placement groove on the inspection placement platform, the inner walls of the inspection placement groove on both sides being inclined, a drive mechanism capable of driving the paper tube to rotate inside the inspection placement platform, and an inspection camera mounted on a worktable above the inspection placement platform.

[0007] In the above-mentioned detection device for paper tubes before lamination, the bottom wall of the detection placement slot is provided with two drive slots. The drive mechanism includes two lifting drivers arranged below the detection placement table. The output shaft of the lifting driver is provided with a lifting plate. Both ends of the lifting plate are provided with drive support rods. A drive cylinder is rotatably connected between the two drive support rods. One of the drive support rods is provided with a drive motor connected to the drive cylinder. The drive cylinder can extend into the drive slot.

[0008] In the aforementioned inspection device for paper tubes before lamination, the waste rejection structure includes a selection block located between the vision inspection structure and the gripping and placing table and sliding on the worktable. The selection block is provided with a qualified placement block and a waste placement block. The selection block is connected to the output shaft of the first transverse drive. The movement of the selection block can position the qualified placement block or the waste placement block between the vision inspection structure and the gripping and placing table.

[0009] In the above-mentioned inspection device for paper tubes before lamination, the qualified placement block is provided with a transition groove, the bottom wall of the transition groove is provided with a conveyor belt, the waste placement block is provided with a drop groove, the bottom of the drop groove is inclined, the waste placement block is also provided with a baffle, and the lower side of the waste placement block has a waste collection frame set on the workbench.

[0010] In the above-mentioned detection device for paper tube before lamination, the gripping structure includes a gripping support plate, a gripping plate slidably disposed on the gripping support plate, a gripping cylinder disposed on the gripping plate, an extension mechanism disposed on the gripping cylinder, the extension mechanism being able to unfold and fit against the inner wall of the paper tube, and the gripping plate being connected to the output shaft of a second transverse drive disposed on the gripping support plate.

[0011] In the aforementioned detection device for paper tubes before lamination, the extension mechanism includes an intermediate cavity disposed within the gripping cylinder. Several extension moving blocks are slidably disposed within the intermediate cavity, and each extension moving block is screwed onto a screw shaft. Several side grooves are connected around the intermediate cavity, and gripping rods are slidably disposed within the side grooves. Each gripping rod is connected to an extension moving block via a rotating shaft. The two ends of the rotating shaft are rotatably connected to the gripping rod and the extension moving block, respectively. The outer surface of the gripping rod is covered with a rubber pad with deformable capability.

[0012] In the aforementioned inspection device for paper tubes before lamination, the extension mechanism further includes an extension motor mounted on a gripping support plate. The screw shaft rotates through the gripping tube, and a connecting shaft is provided on the output shaft of the extension motor. The screw shaft extends into the connecting shaft and slides with the connecting shaft through a spline engagement.

[0013] In the aforementioned inspection device for paper tubes before lamination, the lower end of the paper tube discharge box is provided with a discharge port that is interconnected on both sides, and a baffle is rotatably provided on the upper side of the outlet of the discharge port.

[0014] In the aforementioned detection device for paper tubes before lamination, an arc-shaped pressure plate is located above the gripping and placing platform, and the arc-shaped pressure plate is connected to a lifting drive. Attached Figure Description

[0015] Figure 1 This is a simplified structural diagram of the present invention; Figure 2 This is a schematic diagram of the horizontal direction of the visual inspection structure; Figure 3 This is a schematic diagram of the drive mechanism; Figure 4 This is a schematic diagram of the horizontal direction of the waste removal structure; Figure 5 This is a schematic diagram of the crawling structure; Figure 6 This is a schematic diagram of one of the cross-sections of the grabbing structure; Figure 7 This is a cross-sectional schematic diagram of the gripping cylinder; Figure 8 This is a schematic diagram showing the connection between the paper tube discharge box and the discharge push plate; Figure 9 This is a schematic diagram showing the connection between the gripping and placement platform and the curved pressure plate. In the diagram: 10. Workbench, 11. Paper tube discharge box, 12. Discharge push plate, 13. Vision inspection structure, 14. Waste removal structure, 15. Gripping and placing table, 16. Gripping structure, 17. Inspection and placing table, 18. Inspection and placing groove, 19. Inspection camera, 20. Drive groove, 21. Lifting driver, 22. Lifting plate, 23. Drive support rod, 24. Drive cylinder, 25. Drive motor, 26. Selection block, 27. Qualified placement block, 28. Waste placement block, 29. First transverse drive, 30. Transition groove, 31. Conveyor belt, 32. Drop groove, 33. Stop bar, 34. Waste collection frame, 35. Gripping support plate, 36. Gripping plate, 37. Second transverse drive, 38. Intermediate cavity, 39. Extension moving block, 40. Screw shaft, 41. Side groove, 42. Gripping rod, 43. Rotating shaft, 44. Extension motor, 45. Connecting shaft, 46. Discharge port, 47. Baffle, 48. Arc-shaped pressure plate. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] This embodiment provides a detection device for paper tubes before lamination, combined with... Figure 1-9 As shown, the system includes a workbench 10, on which a paper tube discharge box 11 is provided. The outlet of the paper tube discharge box 11 is located at its lower end. The two sides of the paper tube discharge box 11 are respectively provided with a discharge push plate 12 and a vision inspection structure 13. The discharge push plate 12 can extend into the paper tube discharge box 11 and push the paper tube onto the vision inspection structure 13. The other side of the vision inspection structure 13 is provided with a waste removal structure 14. The other side of the waste removal structure 14 is provided with a gripping and placing platform 15. The side of the workbench 10 is provided with a gripping structure 16. The gripping structure 16 can move onto the gripping and placing platform 15 and extend into the inside of the paper tube and grip the paper tube by gripping the inner wall of the paper tube.

[0018] In this embodiment, paper tubes are placed in the paper tube discharge box 11 and move downwards sequentially under their own gravity until they reach the bottom of the paper tube discharge box 11. The discharge push plate 12 extends into the paper tube discharge box 11 under the output of the linear driver connected to it and pushes the paper tube onto the vision inspection structure 13. The appearance of the paper tube can be inspected in the vision inspection structure 13. After the inspection is completed, the discharge push plate 12 pushes the next paper tube into the vision inspection structure 13 and moves the paper tube of the vision inspection structure 13 to the waste rejection structure 14. When the appearance of the paper tube is unqualified, it can be rejected from the production line. When the outer surface of the paper tube is qualified, it will be moved to the gripping and placing table 15. The gripping structure 16 extends into the inside of the paper tube and grips the paper tube by gripping the inner wall of the paper tube. By gripping the paper tube by the gripping structure 16, the outer layer can be stably covered on the outer surface of the paper tube in the subsequent lamination process, and no blanks will be left at both ends of the paper tube.

[0019] The visual inspection structure 13 includes an inspection placement stage 17, an inspection placement groove 18 on the inspection placement stage 17, the inner walls of the inspection placement groove 18 on both sides are inclined, the inspection placement stage 17 is also provided with a drive mechanism that can drive the paper tube to rotate, and an inspection camera 19 is provided above the inspection placement stage 17 on the worktable 10.

[0020] In this embodiment, when the paper tube is moved into the visual inspection structure 13, the paper tube is placed on the inspection placement slot 18 of the inspection placement stage 17. The paper tube is connected to the drive mechanism, which can drive the paper tube to rotate. During the rotation, the inspection camera 19 above continuously takes pictures of the paper tube and identifies whether there are defects on the outer surface. Since the inner walls on both sides of the inspection placement slot 18 are inclined, the rotating paper tube will not move out of the inspection station.

[0021] The bottom wall of the detection placement slot 18 is provided with two drive slots 20. The drive mechanism includes two lifting drivers 21 set below the detection placement table 17. The output shaft of the lifting driver 21 is provided with a lifting plate 22. Both ends of the lifting plate 22 are provided with drive support rods 23. A drive cylinder 24 is rotatably connected between the two drive support rods 23. One of the drive support rods 23 is provided with a drive motor 25 connected to the drive cylinder 24. The drive cylinder 24 can extend into the drive slot 20.

[0022] In this embodiment, when the paper tube is placed on the detection placement slot 18, the two lifting drivers 21 move the drive cylinders 24 upward, so that the two drive cylinders 24 come into contact with the paper tube. The drive motor 25 works so that the rotation speed and rotation direction of the two drive cylinders 24 are the same, thereby causing the paper tube to rotate.

[0023] The waste rejection structure 14 includes a selection block 26 located between the vision inspection structure 13 and the gripping and placement stage 15 and sliding on the worktable 10. The selection block 26 is provided with a qualified placement block 27 and a waste placement block 28. The selection block 26 is connected to the output shaft of the first transverse drive 29. The movement of the selection block 26 can position the qualified placement block 27 or the waste placement block 28 between the vision inspection structure 13 and the gripping and placement stage 15.

[0024] The qualified placement block 27 is provided with a transition groove 30, and a conveyor belt 31 is provided on the bottom wall of the transition groove 30. The waste placement block 28 is provided with a drop groove 32, the bottom of the drop groove 32 is inclined, the waste placement block 28 is also provided with a baffle 33, and the lower side of the waste placement block 28 has a waste receiving frame 34 set on the workbench 10.

[0025] In this embodiment, after the test is qualified, the first transverse drive 29 works to push the qualified placement block 27 between the test placement table 17 and the gripping placement table 15. When the paper tube moves to the transition groove 30 on the qualified placement block 27, the paper tube is moved to the gripping placement table 15 by the conveyor belt 31. After the paper tube fails the test, the first transverse drive 29 pushes the waste placement block 28 between the test placement table 17 and the gripping placement table 15. After the paper tube moves to the drop trough 32, it slides down into the waste collection box 34 for recycling under the guidance of its inclined bottom wall.

[0026] The gripping structure 16 includes a gripping support plate 35, a gripping plate 36 slidably disposed on the gripping support plate 35, a gripping cylinder 37 disposed on the gripping plate 36, an extension mechanism disposed on the gripping cylinder 37, the extension mechanism being able to unfold and fit against the inner wall of the paper cylinder, and the gripping plate 36 being connected to the output shaft of a second transverse drive 38 disposed on the gripping support plate 35.

[0027] In this embodiment, when a qualified paper tube is placed on the gripping platform 15, the second transverse drive 38 operates to move the gripping support plate 35 with the gripping cylinder 37 and extend it into the paper tube. The extension mechanism inside the gripping cylinder 37 extends out and abuts against the inner wall of the paper tube, thereby achieving the gripping function.

[0028] The extension mechanism includes an intermediate cavity 39 disposed within the gripping cylinder 37. A plurality of extension moving blocks 40 are slidably disposed within the intermediate cavity 39, and each of the extension moving blocks 40 is screwed onto a screw shaft 41. A plurality of side grooves 42 are connected around the intermediate cavity 39. A gripping rod 43 is slidably disposed within the side grooves 42. Each gripping rod 43 is connected to an extension moving block 40 via a rotating shaft 44. The two ends of the rotating shaft 44 are rotatably connected to the gripping rod 43 and the extension moving block 40, respectively. The outer surface of the gripping rod 43 is covered with a rubber pad with deformable capability.

[0029] The extension mechanism also includes an extension motor 45 mounted on the gripping support plate 35. The screw shaft 41 rotates through the gripping cylinder 37. The output shaft of the extension motor 45 is provided with a connecting shaft 46. The screw shaft 41 extends into the connecting shaft 46 and is slidably connected to the connecting shaft 46 through a spline engagement.

[0030] In this embodiment, the lateral movement of the gripping cylinder 37 causes the screw shaft 41 to slide within the connecting shaft 46. The screw shaft 41 and the connecting shaft 46 are always connected. During the operation of the extension mechanism, the extension motor 45 drives the connecting shaft 46 to rotate the screw shaft 41. Since the screw shaft 41 and the extension moving block 40 are screwed together, the extension moving block 40 will move, thereby driving the gripping rod 43 to partially move out of the side groove 42 and abut against the inner wall of the paper tube through the rotating shaft 44. The rubber pad covering the gripping rod 43 increases the friction between it and the paper tube and prevents the paper tube from being crushed.

[0031] The lower end of the paper tube discharge box 11 is provided with a discharge port 47 that is interconnected on both sides, and a baffle 48 is rotatably provided on the upper side of the outlet of the discharge port 47.

[0032] In this embodiment, during the paper tube discharge box 11 discharge process, the discharge push plate 12 moves forward and extends into the discharge port 47 and pushes the paper tube. As the paper tube goes out, it pushes the baffle 48 to rotate. The baffle 48 is used to prevent the paper tube from moving out of the discharge port 47 by itself. In this embodiment, the length of the discharge push plate 12 is greater than the length of the discharge port 47. Before the discharge push plate 12 returns to its original position and moves out of the discharge port 47, the next paper tube will not fall down. In addition, the discharge push plate 12 will not come into contact with the baffle 48.

[0033] The gripping and placing platform 15 has an arc-shaped pressure plate 49 above it, and the arc-shaped pressure plate 49 is connected to the lifting driver.

[0034] In this embodiment, when the gripping structure 16 grips the paper tube, the arc-shaped pressure plate 49 moves downward to press down on the paper tube.

[0035] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0036] Although this paper extensively uses the following components: workbench 10, paper tube discharge box 11, discharge push plate 12, vision inspection structure 13, waste rejection structure 14, gripping and placing table 15, gripping structure 16, inspection placing table 17, inspection placing groove 18, inspection camera 19, drive groove 20, lifting driver 21, lifting plate 22, drive support rod 23, drive cylinder 24, drive motor 25, selection block 26, qualified placement block 27, waste placement block 28, first transverse drive 29, transition groove 30, conveyor belt 31 The following components are used: drop groove 32, stop bar 33, waste collection frame 34, gripping support plate 35, gripping plate 36, gripping cylinder 37, second transverse drive 38, intermediate cavity 39, extension moving block 40, screw shaft 41, side groove 42, gripping rod 43, rotating shaft 44, extension motor 45, connecting shaft 46, discharge port 47, baffle 48, arc-shaped pressure plate 49, etc. These terms are used merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would be contrary to the spirit of the invention.

Claims

1. A testing and mounting device for paper tubes before lamination, comprising a workbench (10), characterized in that, The workbench (10) is provided with a paper tube discharge box (11), the outlet of the paper tube discharge box (11) is located at its lower end, the two sides of the paper tube discharge box (11) are respectively provided with a discharge push plate (12) and a vision detection structure (13), the discharge push plate (12) can extend into the paper tube discharge box (11) and push the paper tube onto the vision detection structure (13), the other side of the vision detection structure (13) is provided with a waste removal structure (14), the other side of the waste removal structure (14) is provided with a gripping and placing platform (15), the side of the workbench (10) is provided with a gripping structure (16), the gripping structure (16) can move onto the gripping and placing platform (15) and extend into the inside of the paper tube and grip the paper tube by gripping the inner wall of the paper tube.

2. The detection device for paper tubes before lamination according to claim 1, characterized in that, The visual inspection structure (13) includes an inspection placement platform (17), an inspection placement slot (18) is provided on the inspection placement platform (17), the inner walls on both sides of the inspection placement slot (18) are inclined, the inspection placement platform (17) is also provided with a drive mechanism that can drive the paper tube to rotate, and an inspection camera (19) is provided above the inspection placement platform (17) on the workbench (10).

3. The detection device for paper tubes before lamination according to claim 2, characterized in that, The bottom wall of the detection placement slot (18) is provided with two drive slots (20). The drive mechanism includes two lifting drivers (21) set below the detection placement table (17). The output shaft of the lifting driver (21) is provided with a lifting plate (22). The two ends of the lifting plate (22) are respectively provided with drive support rods (23). A drive cylinder (24) is rotatably connected between the two drive support rods (23). One of the drive support rods (23) is provided with a drive motor (25) connected to the drive cylinder (24). The drive cylinder (24) can extend into the drive slot (20).

4. The detection device for paper tubes before lamination according to claim 1, characterized in that, The waste rejection structure (14) includes a selection block (26) located between the vision inspection structure (13) and the gripping and placement table (15) and sliding on the worktable (10). The selection block (26) is provided with a qualified placement block (27) and a waste placement block (28). The selection block (26) is connected to the output shaft of the first transverse drive (29). The movement of the selection block (26) can make the qualified placement block (27) or the waste placement block (28) located between the vision inspection structure (13) and the gripping and placement table (15).

5. The detection device for paper tubes before lamination according to claim 4, characterized in that, The qualified placement block (27) is provided with a transition groove (30), the bottom wall of the transition groove (30) is provided with a conveyor belt (31), the waste placement block (28) is provided with a drop groove (32), the bottom of the drop groove (32) is inclined, the waste placement block (28) is also provided with a baffle (33), and the lower side of the waste placement block (28) is provided with a waste collection frame (34) set on the workbench (10).

6. The detection device for paper tubes before lamination according to claim 1, characterized in that, The gripping structure (16) includes a gripping support plate (35), a gripping plate (36) is slidably disposed on the gripping support plate (35), a gripping cylinder (37) is disposed on the gripping plate (36), an extension mechanism is provided on the gripping cylinder (37), the extension mechanism can be unfolded and fit against the inner wall of the paper tube, and the gripping plate (36) is connected to the output shaft of the second transverse drive (38) disposed on the gripping support plate (35).

7. The detection device for paper tubes before lamination according to claim 6, characterized in that, The extension mechanism includes an intermediate cavity (39) disposed in the gripping cylinder (37). Several extension moving blocks (40) are slidably disposed in the intermediate cavity (39). The several extension moving blocks (40) are all screwed onto the screw shaft (41). Several side grooves (42) are connected around the intermediate cavity (39). Gripping rods (43) are slidably disposed in the side grooves (42). Each gripping rod (43) is connected to the extension moving block (40) through a rotating shaft (44). The two ends of the rotating shaft (44) are rotatably connected to the gripping rod (43) and the extension moving block (40) respectively. The outer surface of the gripping rod (43) is covered with a rubber pad with deformation capability.

8. The detection device for paper tubes before lamination according to claim 7, characterized in that, The extension mechanism also includes an extension motor (45) mounted on the gripping support plate (35), a screw shaft (41) that rotates through the gripping cylinder (37), a connecting shaft (46) on the output shaft of the extension motor (45), and the screw shaft (41) extending into the connecting shaft (46) and slidingly connected to the connecting shaft (46) through a spline fit.

9. The detection device for paper tubes before lamination according to claim 1, characterized in that, The lower end of the paper tube discharge box (11) is provided with a discharge port (47) that is interconnected on both sides, and a baffle (48) is rotatably provided on the upper side of the outlet of the discharge port (47).

10. The detection device for paper tubes before lamination according to claim 1, characterized in that, The gripping and placing platform (15) has an arc-shaped pressure plate (49) above it, which is connected to the lifting drive.

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