Paper breaking detection device in anti-counterfeit label production process
By employing an adaptive tension detection and cleaning mechanism in the production of anti-counterfeiting labels, the problem of detection position offset was solved, achieving high-precision paper break detection and production stability, while reducing equipment wear and costs.
Patent Information
- Application Number
- CN202512014150.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-29
- Publication Date
- 2026-03-06
AI Technical Summary
Existing paper breakage detection devices suffer from shifted detection positions due to equipment vibration and uneven tension during anti-counterfeiting label production, affecting detection accuracy and making it difficult to meet high-precision requirements.
An adaptive tension detection mechanism and an adaptive cleaning mechanism are adopted, including a detection tension roller and an ion air knife that can follow the offset of the label tape, in conjunction with a drive roller and a support roller, to ensure detection accuracy and stability.
It improves the accuracy and stability of label tape detection, reduces equipment wear and production costs, and ensures production continuity and product quality.
Smart Images
Figure CN121609148A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of anti-counterfeiting label production technology, specifically, it relates to a paper breakage detection device in the anti-counterfeiting label production process. Background Technology
[0002] In the production process of anti-counterfeiting labels, paper break detection is a crucial step to ensure production continuity and product quality. Anti-counterfeiting labels typically have complex structures and intricate patterns, requiring extremely high stability in the label tape conveying process. If a paper break occurs and is not detected and stopped in time, it will not only waste raw materials and increase production costs, but also cause the production equipment to run idle, accelerate equipment wear, and reduce equipment lifespan. Furthermore, it will disrupt production plans, affect overall production efficiency, and prevent timely order delivery, resulting in significant economic losses for the company.
[0003] Currently, existing paper breakage detection devices inevitably experience lateral shifts during label tape conveying due to factors such as equipment vibration and uneven tension. When the label tape shifts laterally, the detection position changes, and the resulting lateral force is misread by the sensor as a change in tension, significantly affecting detection accuracy. This makes it difficult to accurately reflect the tension of the label tape under normal conveying conditions and fails to meet the high-precision detection requirements of anti-counterfeiting label production. Therefore, we propose a paper breakage detection device for the anti-counterfeiting label production process. Summary of the Invention
[0004] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: A paper breakage detection device for anti-counterfeiting label production includes a base plate, a support frame mounted on the top of the base plate, an electric cylinder mounted on the top of the support frame, a connecting frame slidably connected to the inner wall of the support frame, a piston rod of the electric cylinder moving through the top of the support frame, the connecting frame mounted on the bottom end of the piston rod of the electric cylinder, a partition plate mounted on the inner wall of the connecting frame, and multiple sets of adaptive tension detection mechanisms that can follow the slight displacement of the label paper on the partition plate. An adaptive cleaning mechanism for cleaning dust or foreign matter adhering to the surface of the label paper is provided on one side of the support frame.
[0005] In a preferred embodiment of the present invention, the adaptive tension detection mechanism includes a moving groove, a tension detection roller, a controller, a warning light, and a connecting plate. The moving groove is formed on a partition plate, and a moving block is slidably connected to the inner wall of the moving groove. A rod hole is formed on the moving block, and a connecting rod movably passes through the rod hole. A fixed frame is installed at the bottom end of the connecting rod. The tension detection roller is rotatably connected to the inner wall of the fixed frame via a bearing seat. The connecting plate is installed at the top end of the connecting rod. A limit opening is formed on the connecting plate, and a top frame movably passes through the limit opening. A limit plate is installed at the bottom end of the top frame. A pressure sensor is installed between the top frame and the connecting plate. The pressure sensor is mounted on the top of the connecting plate. A second fixed frame is installed on the top of the top frame. A top roller is rotatably connected to the inner wall of the second fixed frame via a bearing seat. The top roller is rolled to the top of the inner wall of the connecting frame. An initial locking component for limiting and fixing the moving block is provided on the partition plate. The controller is installed on the front of the first support frame. The warning light is installed on the top of the first support frame. The pressure sensor is signal-connected to the controller. The controller is electrically connected to the warning light. By setting the top roller, the detection tension roller can more flexibly follow the label tape to move.
[0006] In a preferred embodiment of the present invention, there are two connecting rods and two rod holes, and the connecting rods and rod holes are adapted to each other. A limiting slide plate is installed on the outer wall of the connecting frame, and a limiting groove is opened on the inner wall of the support frame. The limiting slide plate and the limiting groove are slidably connected. By setting the connecting rod, the connection between the connecting plate and the fixed frame can be limited.
[0007] In a preferred embodiment of the present invention, a limiting slide plate is installed on the outer wall of the movable block, and a limiting groove is formed on the inner wall of the movable groove. The limiting slide plate and the limiting groove are slidably connected. By setting the limiting slide plate and the limiting groove, the movable block can be limited, ensuring that the movable block can be fixedly slid in the movable groove.
[0008] In a preferred embodiment of the present invention, the initial locking assembly includes a U-shaped locking plate and a top plate. The moving block has a slot, the top plate is installed at the top of a fixed frame and inserted into the slot, a limiting groove is provided inside the partition, a limiting plate is slidably connected to the inner wall of the limiting groove, one end of the U-shaped locking plate is installed at the top of the limiting plate, and the U-shaped locking plate moves through the top of the inner wall of the limiting groove. A spring is connected between the bottom end of the limiting plate and the bottom end of the inner wall of the limiting groove. By setting the U-shaped locking plate, when the detection tension roller is not in contact with the label tape, the U-shaped locking plate can be inserted into the slot, thereby limiting the moving block and improving the stability of the detection tension roller.
[0009] In a preferred embodiment of the present invention, the other end of the U-shaped card plate is located directly above the card slot, the top of the card slot is flared, and a ball is movably embedded in the other end of the U-shaped card plate. By setting the top of the card slot to be flared, the U-shaped card plate can be normally inserted into the card slot through the guide of the flared opening when the detection tension roller is reset.
[0010] In a preferred embodiment of the present invention, two inclined support plates are installed on both sides of the fixed frame, and a guide roller is rotatably connected between the two inclined support plates through a bearing seat. By setting the guide roller, the label tape on both sides of the detection tension roller can be supported, ensuring that the wrap angle of the label tape to the detection tension roller is fixed, and further ensuring the tension detection accuracy.
[0011] In a preferred embodiment of the present invention, the adaptive cleaning mechanism includes a folding plate, a support plate, and a second support frame. A connecting frame is installed on one side of the connecting frame. A shaft hole is opened at one end of the folding plate. A connecting frame is installed on one side of the connecting frame. A connecting shaft is installed on the inner wall of the connecting frame. The connecting shaft movably passes through the shaft hole. A torsion spring is connected between the outer wall of the connecting shaft and the inner wall of the shaft hole. Multiple sets of ion air knives are installed at the bottom end of the folding plate. The second support frame is installed on the top of the base plate. An L-shaped connecting plate is installed on the outer wall of the support frame. A second L-shaped connecting plate is installed at the top of the first L-shaped connecting plate. The system is equipped with a fixed frame three, and a top roller two is rotatably connected to the inner wall of the fixed frame three via a bearing seat. The top roller two is rotatably connected to the bottom end of the folding plate. A rotating shaft is installed on both the front and back of the support plate. A gear is installed at one end of the rotating shaft. The rotating shaft movably passes through the support frame two and the L-shaped connecting plate one, and the rotating shaft is rotatably connected to the support frame two via a bearing. An L-shaped connecting plate two is installed on the outer wall of the connecting frame. A rack plate is installed at one end of the L-shaped connecting plate two. The gear meshes with the rack plate. A transmission support assembly for supporting the label paper is provided at the top of the support plate.
[0012] In a preferred embodiment of the present invention, the angle at which the multiple sets of ion air knives blow towards the label paper is °-°. A housing is installed at the top of the base plate. The gear and rack are both disposed inside the housing. The rotating shaft movably passes through the back of the housing. A plate groove is opened on one side of the housing. The L-shaped connecting plate movably passes through the plate groove. By setting the housing, the gear and rack can be protected to a certain extent.
[0013] In a preferred embodiment of the present invention, the transmission support assembly includes a first transmission roller and a second transmission roller. A groove is provided at the top of the support plate. The first transmission roller and the second transmission roller are rotatably connected to the inner wall of the groove through bearing seats. A support transmission belt is sleeved on the outer wall of the first transmission roller and the second transmission roller. Multiple support rollers are rotatably connected to the inner wall of the groove through bearing seats. The support rollers are in contact with the inner wall of the support transmission belt. By setting the first transmission roller, the second transmission roller, the support rollers, and the support transmission belt, the label tape can drive the support transmission belt through friction during the conveying process, which greatly reduces the relative friction between the label tape and the support plate, thereby reducing the impact on the label tape tension and ensuring detection accuracy.
[0014] Compared with the prior art, the present invention has the following advantages: This invention incorporates multiple sets of adaptive tension detection mechanisms, enabling distributed synchronous monitoring of wide-width labels. This enhances the sensitivity to detect local defects and improves detection accuracy. Furthermore, during real-time monitoring of the label tape tension by the tension roller during transport, if the label tape shifts laterally, the tension roller will flexibly follow the shift, ensuring that the detection position of the tension roller on the label remains unchanged. This also avoids the impact of lateral force generated by the label tape shift on the pressure sensor, significantly improving detection accuracy.
[0015] This invention allows for the removal of dust or foreign objects from the label tape surface by an ion air knife before it contacts the tension detection roller. This prevents dust or foreign objects from contacting the tension detection roller and affecting the stability of the label tape tension detection, thereby improving detection accuracy. Furthermore, the gear and rack mechanism ensures that the support drive belt on the support plate is in contact with the bottom surface of the label tape, effectively supporting the label tape and significantly reducing the impact of the airflow generated by the ion air knife on the label tape's conveying state. This ensures the stability of the label tape during conveying. The top roller keeps the folding plate parallel to the label tape, ensuring the correct airflow angle generated by the ion air knife on the label tape, thus guaranteeing the cleaning quality of the label tape surface by the ion air knife.
[0016] This invention, by setting up a first transmission roller, a second transmission roller, a support roller, and a support transmission belt, enables the label tape to drive the support transmission belt through friction during the conveying process, greatly reducing the relative friction between the label tape and the support plate, thereby reducing the impact on the label tape tension and ensuring detection accuracy.
[0017] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description
[0018] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Enlarged structural diagram of section D in the middle; Figure 3 This is a front cross-sectional view of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram of section A in the middle; Figure 5 For the present invention Figure 3 Enlarged structural diagram of section B in the middle; Figure 6 For the present invention Figure 3 Enlarged structural diagram of section C; Figure 7 This is a schematic cross-sectional view of the housing structure of the present invention. Figure 8 For the present invention Figure 7 Enlarged structural diagram of section E in the middle; Figure 9 This is a front cross-sectional view of the connecting frame of the present invention; Figure 10 For the present invention Figure 9 Enlarged structural diagram of section F in the middle; Figure 11 This is a magnified cross-sectional view of the card slot structure of the present invention.
[0019] In the diagram: 1. Base plate; 2. Support frame one; 3. Connecting frame; 4. Partition plate; 5. Moving groove; 6. Moving block; 7. Limiting slide plate one; 8. Limiting slide groove one; 9. Connecting rod; 10. Rod hole; 11. Fixing frame one; 12. Tension detection roller; 13. Connecting plate; 14. Limiting port; 15. Top frame; 16. Pressure sensor; 17. Fixing frame two; 18. Top roller one; 19. Limiting plate one; 20. Top plate; 21. Slot; 22. U-shaped slot; 23. Limiting groove; 24. Limiting plate two; 25. Inclined brace; 26. Guide roller; 27. Limiting slide plate two; 28. Limiting slide groove two; 29. Folding plate; 30. Connecting frame; 31. Connecting shaft; 32. Shaft hole; 33. Torsion spring; 34. Support frame two; 35. Support plate; 36. Ion air knife; 37. Transmission roller one; 38. Transmission roller two; 39. Support transmission belt; 40. L-shaped connecting plate one; 41. Fixed frame three; 42. Top roller two; 43. Rotating shaft; 44. Housing; 45. Gear; 46. Rack plate; 47. L-shaped connecting plate two; 48. Plate groove; 49. Warning light; 50. Electric cylinder; 51. Controller; 52. Support roller; 53. Spring; 54. Ball bearing; 55. Limiting slide plate two; 56. Limiting slide groove two. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.
[0021] like Figures 1 to 11 As shown, the present invention provides a technical solution: a paper breakage detection device in the production process of anti-counterfeiting labels, including a base plate 1, a support frame 2 installed at the top of the base plate 1, an electric cylinder 50 installed at the top of the support frame 2, a connecting frame 3 slidably connected to the inner wall of the support frame 2, the piston rod of the electric cylinder 50 moving through the top of the support frame 2, the connecting frame 3 installed at the bottom end of the piston rod of the electric cylinder 50, a partition plate 4 installed on the inner wall of the connecting frame 3, and multiple sets of adaptive tension detection mechanisms that can follow the slight displacement of the label paper on the partition plate 4. An adaptive cleaning mechanism for cleaning dust or foreign matter attached to the surface of the label paper is provided on one side of the support frame 2.
[0022] Furthermore, the adaptive tension detection mechanism includes a moving groove 5, a tension detection roller 12, a controller 51, a warning light 49, and a connecting plate 13. The moving groove 5 is located on the partition plate 4. A moving block 6 is slidably connected to the inner wall of the moving groove 5. A rod hole 10 is provided on the moving block 6, through which a connecting rod 9 moves. A fixed frame 11 is installed at the bottom end of the connecting rod 9. The tension detection roller 12 is rotatably connected to the inner wall of the fixed frame 11 via a bearing seat. The connecting plate 13 is installed at the top end of the connecting rod 9. A limit port 14 is provided on the connecting plate 13, through which a top frame 15 moves. A limit plate 19 is installed at the bottom. A pressure sensor 16 is provided between the top frame 15 and the connecting plate 13. The pressure sensor 16 is installed at the top of the connecting plate 13. A fixed frame 17 is installed at the top of the top frame 15. A top roller 18 is rotatably connected to the inner wall of the fixed frame 17 through a bearing seat. The top roller 18 is rolled to the top of the inner wall of the connecting frame 3. An initial locking component for limiting and fixing the moving block 6 is provided on the partition plate 4. The controller 51 is installed on the front of the support frame 2. The warning light 49 is installed at the top of the support frame 2. The pressure sensor 16 is signal-connected to the controller 51. The controller 51 is electrically connected to the warning light 49. By setting the top roller 18, the tension detection roller 12 can more flexibly follow the label tape to shift and move.
[0023] Furthermore, there are two connecting rods 9 and two rod holes 10, and the connecting rods 9 and rod holes 10 are compatible. The outer wall of the connecting frame 3 is equipped with a limiting slide plate 2 55, and the inner wall of the support frame 2 is provided with a limiting groove 2 56. The limiting slide plate 2 55 and the limiting groove 2 56 are slidably connected. The connecting rod 9 can be used to limit the connection between the connecting plate 13 and the fixed frame 11.
[0024] Furthermore, a limiting slide plate 7 is installed on the outer wall of the movable block 6, and a limiting slide groove 8 is opened on the inner wall of the movable groove 5. The limiting slide plate 7 and the limiting slide groove 8 are slidably connected. Among them, by setting the limiting slide plate 7 and the limiting slide groove 8, the moving block 6 can be limited, ensuring that the moving block 6 can slide in the moving groove 5.
[0025] Furthermore, the initial locking assembly includes a U-shaped locking plate 22 and a top plate 20. The moving block 6 has a slot 21. The top plate 20 is installed on the top of the fixed frame 11 and is inserted into the slot 21. The partition 4 has a limiting groove 23 inside. The inner wall of the limiting groove 23 is slidably connected to the limiting plate 24. One end of the U-shaped locking plate 22 is installed on the top of the limiting plate 24, and the U-shaped locking plate 22 moves through the top of the inner wall of the limiting groove 23. A spring 53 is connected between the bottom end of the limiting plate 24 and the bottom end of the inner wall of the limiting groove 23. By setting a U-shaped clamp 22, when the detection tension roller 12 is not in contact with the label tape, the U-shaped clamp 22 can be inserted into the clamp slot 21, thereby limiting the movement block 6 and improving the stability of the detection tension roller 12.
[0026] Furthermore, the other end of the U-shaped card plate 22 is located directly above the card slot 21, the top of the card slot 21 is flared, and the other end of the U-shaped card plate 22 is movably inlaid with a ball bearing 54.
[0027] By setting the top of the slot 21 to be funnel-shaped, the U-shaped card plate 22 can be normally inserted into the slot 21 through the guide of the funnel-shaped opening when the tension roller 12 is reset.
[0028] Furthermore, two diagonal bracing plates 25 are installed on both sides of the fixed frame 11, and a guide roller 26 is rotatably connected between the two diagonal bracing plates 25 through a bearing seat; By setting guide rollers 26, the label tapes on both sides of the tension detection roller 12 can be supported, ensuring that the wrap angle of the label tapes on the tension detection roller 12 is fixed, thereby further ensuring the tension detection accuracy.
[0029] Furthermore, the adaptive cleaning mechanism includes a folding plate 29, a support plate 35, and a second support frame 34. A connecting frame 30 is installed on one side of the connecting frame 3. A shaft hole 32 is opened at one end of the folding plate 29. A connecting frame 30 is installed on one side of the connecting frame 3. A connecting shaft 31 is installed on the inner wall of the connecting frame 30. The connecting shaft 31 movably passes through the shaft hole 32. A torsion spring 33 is connected between the outer wall of the connecting shaft 31 and the inner wall of the shaft hole 32. Multiple sets of ion air knives 36 are installed at the bottom end of the folding plate 29. The second support frame 34 is installed at the top of the base plate 1. An L-shaped connecting plate 40 is installed on the outer wall of the support frame. A fixing frame 3 is installed at the top of the L-shaped connecting plate 40. 41. The inner wall of the fixed frame 3 41 is rotatably connected to the top roller 2 42 via a bearing seat. The top roller 2 42 is rotatably connected to the bottom end of the folding plate 29. The support plate 35 is equipped with a rotating shaft 43 on both the front and back. A gear 45 is installed at one end of the rotating shaft 43. The rotating shaft 43 movably passes through the support frame 2 34 and the L-shaped connecting plate 1 40. The rotating shaft 43 is rotatably connected to the support frame 2 34 via a bearing. The outer wall of the connecting frame 3 is equipped with an L-shaped connecting plate 2 47. A rack plate 46 is installed at one end of the L-shaped connecting plate 2 47. The gear 45 meshes with the rack plate 46. The top of the support plate 35 is provided with a transmission support assembly for supporting the label paper.
[0030] Furthermore, the angles at which multiple ion air knives 36 blow toward the label paper are all 30°-45°. A housing 44 is installed at the top of the base plate 1. Gears 45 and rack plates 46 are both set inside the housing 44. A rotating shaft 43 moves through the back of the housing 44. A plate groove 48 is opened on one side of the housing 44. An L-shaped connecting plate 47 moves through the plate groove 48. The housing 44 provides a certain degree of protection for the gear 45 and the rack plate 46.
[0031] Furthermore, the transmission support assembly includes a first transmission roller 37 and a second transmission roller 38. A groove is provided at the top of the support plate 35. The first transmission roller 37 and the second transmission roller 38 are rotatably connected to the inner wall of the groove through bearing seats. A support transmission belt 39 is sleeved on the outer wall of the first transmission roller 37 and the second transmission roller 38. Multiple support rollers 52 are rotatably connected to the inner wall of the groove through bearing seats. The support rollers 52 are in contact with the inner wall of the support transmission belt 39. By setting up transmission roller 37, transmission roller 38, support roller 52 and support transmission belt 39, the label tape can drive the support transmission belt 39 through friction during the conveying process, which greatly reduces the relative friction between the label tape and the support plate 35, thereby reducing the impact on the tension of the label tape and ensuring detection accuracy.
[0032] The implementation principle of a paper breakage detection device in the production process of anti-counterfeiting labels is as follows: During label production, the electric cylinder 50 is activated, which drives the connecting frame 3 to move downward. The connecting frame 3 drives the partition 4 to move downward. The partition 4 drives the moving block 6 to move downward through the limiting slide plate 7. The fixed frame 11 moves downward under its own weight. The fixed frame 11 drives the detection tension roller 12 to contact the label tape. The reaction force of the detection tension roller 12 on the label tape drives the connecting plate 13 to move upward through the fixed frame 11 and the connecting rod 9. The connecting plate 13 drives the fixed frame 17 to move upward through the pressure sensor 16. The fixed frame 17 drives the top roller 18 to move upward, and finally the top roller 18 contacts the top of the inner wall of the connecting frame 3. When the fixed frame 11 moves upward, it will drive the top plate 20 to move upward, and the top plate 20 will insert into the slot. In step 21, the top plate 20 eventually pushes the U-shaped card plate 22 out of the slot 21, so that the U-shaped card plate 22 no longer limits the moving block 6. When the connecting frame 3 continues to move downward, the detection tension roller 12 and the guide roller 26 will cause the label paper to generate a fixed wrap angle tension. When the detection tension roller 12 moves to the specified tension position, it stops moving. At this time, the tension generated by the label paper remains unchanged. At this time, the pressure sensor 16 will monitor the tension of the label paper. If the label tape is torn near the detection tension roller 12 during the production and conveying process, the value of the pressure sensor 16 will change. When the change exceeds the preset range, the pressure sensor 16 will send a signal to the controller 51, so that the controller 51 controls the warning light 49 to sound an alarm, thereby reminding the surrounding staff to stop the machine in time for inspection, thus completing the paper break detection. During the conveying process, the label tape inevitably experiences a certain degree of lateral deviation. At this time, the detection tension roller 12 will follow the label paper under the action of friction with the label paper. When the detection tension roller 12 deviates, the connecting plate 13 will drive the fixed frame 17 to move through the top frame 15, causing the fixed frame 17 to drive the top roller 18 to roll on the connecting frame 3. Through the above structure, multiple sets of adaptive tension detection mechanisms are set up, which can perform distributed synchronous monitoring of wide labels, improve the detection sensitivity of local defects, improve detection accuracy, and when the detection tension roller 12 detects the tension of the label tape in real time during the conveying process, if the label tape deviates laterally, the detection tension roller 12 will flexibly follow the label tape to deviate, ensuring that the detection position of the detection tension roller 12 on the label remains unchanged, and avoiding the influence of the lateral force generated when the label tape deviates laterally on the pressure sensor 16, which greatly improves the detection accuracy. When the connecting frame 3 moves downward, it drives the L-shaped connecting plate 47 to move downward. The L-shaped connecting plate 47 drives the rack plate 46 to move downward. The rack plate 46 drives the gear 45 to rotate. The gear 45 drives the rotating shaft 43 to rotate. The rotating shaft 43 drives the support plate 35 to rotate. When the detection tension roller 12 stops pressing down on the label tape, the tilt angle of the support plate 25 is exactly the same as the tilt angle of the label tape, so that the support transmission belt 39 on the support plate 35 is just in contact with the bottom surface of the label tape. When the connecting frame 3 moves downward, it also drives the folding plate 29 to move downward through the connecting frame 30. When the folding plate 29 moves to contact the top roller 42, the top roller 42 will push the folding plate 29 to rotate upward. When the detection tension roller 12 stops pressing down on the label tape, the folding plate 29 rotates to be just parallel to the label tape. Then, during the label tape conveying process, the ion air knife 36 can be activated. The ion air knife 36 can blow away dust or foreign objects attached to the surface of the label tape. Through the above structure, the dust or foreign objects on the surface of the label tape can be cleaned by the ion air knife 36 before the label tape comes into contact with the detection tension roller 12, so as to avoid dust or foreign objects from coming into contact with the detection tension roller 12 and affecting the stability of the label tape tension detection, thereby further improving the detection accuracy. In addition, through the cooperation of the gear 45 and the rack, the support transmission belt 39 on the support plate 35 can be made to fit with the bottom surface of the label tape, so that the support plate 35 can effectively support the label tape, greatly reducing the impact of the airflow generated by the ion air knife 36 on the label tape conveying state, ensuring the stability of the label tape during the conveying process. Through the top roller, the folding plate 29 can be kept parallel to the label tape, ensuring the airflow angle generated by the ion air knife 36 on the label tape, thereby ensuring the cleaning quality of the label tape surface by the ion air knife 36. By setting up transmission roller 37, transmission roller 38, support roller 52 and support transmission belt 39, the label tape can drive the support transmission belt 39 through friction during the conveying process, which greatly reduces the relative friction between the label tape and the support plate 35, thereby reducing the impact on the label tape tension and ensuring detection accuracy.
[0033] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A kind of anti-fake label production process paper break detection device, including bottom plate (1), the top of the bottom plate (1) is equipped with support frame one (2), it is characterized in that, The top end of the support frame one (2) is provided with an electric cylinder (50), the inner wall of the support frame one (2) is slidably connected with a connecting frame (3), the piston rod of the electric cylinder (50) is movably penetrated through the top end of the support frame one (2), the connecting frame (3) is installed at the bottom end of the piston rod of the electric cylinder (50), the inner wall of the connecting frame (3) is provided with a partition plate (4), a plurality of self-adaptive tension detection mechanisms capable of following the slight deviation of the label paper are arranged on the partition plate (4), and the side of the support frame one (2) is provided with a self-adaptive cleaning mechanism for cleaning the dust or foreign matters attached to the surface of the label paper.
2. The paper break detection device in a security label production process according to claim 1, characterized in that, The self-adaptive tension detection mechanism comprises a moving groove (5), a detection tension roller (12), a controller (51), a warning light (49) and a connecting plate (13), the moving groove (5) is formed in the partition plate (4), the inner wall of the moving groove (5) is slidably connected with a moving block (6), a rod hole (10) is formed in the moving block (6), a connecting rod (9) is movably penetrated through the rod hole (10), the bottom end of the connecting rod (9) is provided with a fixed frame one (11), the detection tension roller (12) is rotatably connected to the inner wall of the fixed frame one (11) through a bearing seat, the connecting plate (13) is installed at the top end of the connecting rod (9), the connecting plate (13) is installed at the top end of the connecting rod (9), a limiting opening (14) is formed in the connecting plate (13), a top frame (15) is movably penetrated through the limiting opening (14), the bottom end of the top frame (15) is provided with a limiting plate one (19), a pressure sensor (16) is arranged between the top frame (15) and the connecting plate (13), the pressure sensor (16) is installed at the top end of the connecting plate (13), the top end of the top frame (15) is provided with a fixed frame two (17), the inner wall of the fixed frame two (17) is rotatably connected with a top roller one (18) through a bearing seat, the top roller one (18) is rollingly connected with the top end of the inner wall of the connecting frame (3), the partition plate (4) is provided with an initial locking assembly for limiting and fixing the moving block (6), the controller (51) is installed on the front face of the support frame one (2), the warning light (49) is installed at the top end of the support frame one (2), the pressure sensor (16) is signal connected with the controller (51), and the controller (51) is electrically connected with the warning light (49).
3. A paper break detection device for a security label production process according to claim 2, characterized in that The number of the connecting rod (9) and the rod hole (10) is two, and the connecting rod (9) is matched with the rod hole (10), the outer wall of the connecting frame (3) is provided with a limiting sliding plate two (55), and the inner wall of the support frame (2) is formed with a limiting sliding groove two (56), the limiting sliding plate two (55) is slidably connected with the limiting sliding groove two (56).
4. The paper break detection device for a security label production process according to claim 2, characterized in that, The outer wall of the moving block (6) is provided with a limiting sliding plate one (7), the inner wall of the moving groove (5) is formed with a limiting sliding groove one (8), and the limiting sliding plate one (7) is slidably connected with the limiting sliding groove one (8).
5. The paper break detection device for security label production process according to claim 2, characterized in that, The initial locking assembly comprises a U-shaped clamping plate (22) and a top plate (20), the moving block (6) is provided with a clamping groove (21), the top plate (20) is installed at the top end of the fixed frame one (11), the top plate (20) is inserted into the clamping groove (21), the partition plate (4) is internally provided with a limiting groove (23), the limiting groove (23) is slidably connected with a limiting plate two (24), one end of the U-shaped clamping plate (22) is installed at the top end of the limiting plate two (24), and the U-shaped clamping plate (22) movably penetrates the top end of the inner wall of the limiting groove (23), and the spring (53) is connected between the bottom end of the limiting plate two (24) and the bottom end of the inner wall of the limiting groove (23).
6. A paper break detection device for use in a process for producing a security label according to claim 5, characterized in that The other end of the U-shaped clamping plate (22) is directly above the clamping groove (21), the top of the clamping groove (21) is a horn mouth, and the other end of the U-shaped clamping plate (22) movably embeds a ball (54).
7. The paper break detection device for security label production process according to claim 2, characterized in that, The fixed frame one (11) is provided with two inclined support plates (25) on both sides, and the two inclined support plates (25) are rotatably connected with guide rollers (26) through bearing seats.
8. The paper break detection device in a security label production process according to claim 1, characterized in that, The self-adaptive cleaning mechanism comprises a folding plate (29), a support plate (35) and a support frame two (34), one side of the connecting frame (3) is provided with a connecting frame (30), one end of the folding plate (29) is provided with a shaft hole (32), one side of the connecting frame (3) is provided with a connecting frame (30), the inner wall of the connecting frame (30) is provided with a connecting shaft (31), the connecting shaft (31) movably penetrates the shaft hole (32), the torsional spring (33) is connected between the outer wall of the connecting shaft (31) and the inner wall of the shaft hole (32), a plurality of ion air knives (36) are installed at the bottom end of the folding plate (29), the support frame two (34) is installed at the top end of the bottom plate (1), the outer wall of the support frame is provided with an L-shaped connecting plate one (40), the top end of the L-shaped connecting plate one (40) is provided with a fixed frame three (41), the inner wall of the fixed frame three (41) is rotatably connected with a top roller two (42) through a bearing seat, the top roller two (42) is rotatably connected with the bottom end of the folding plate (29), the front and back of the support plate (35) are provided with rotating shafts (43), one end of the rotating shaft (43) is provided with a gear (45), the rotating shaft (43) movably penetrates the support frame two (34) and the L-shaped connecting plate one (40), and the rotating shaft (43) is rotatably connected with the support frame two (34) through a bearing, the outer wall of the connecting frame (3) is provided with an L-shaped connecting plate two (47), one end of the L-shaped connecting plate two (47) is provided with a rack plate (46), the gear (45) is engaged with the rack plate (46), and the top end of the support plate (35) is provided with a transmission support assembly for supporting label paper.
9. A paper break detection device for use in a process for producing a security label according to claim 8, characterised in that, The angles of a plurality of ion air knives (36) blowing to the label paper are 30°-45°, the top end of the bottom plate (1) is provided with a shell (44), the gear (45) and the rack plate (46) are arranged in the shell (44), the rotating shaft (43) movably penetrates the back of the shell (44), one side of the shell (44) is provided with a plate groove (48), and the L-shaped connecting plate two (47) movably penetrates the plate groove (48).
10. The paper break detection device for security label production process according to claim 8, characterized in that, The transmission support assembly comprises a transmission roller one (37) and a transmission roller two (38), a groove is formed at the top end of the support plate (35), the transmission roller one (37) and the transmission roller two (38) are both rotationally connected to the inner wall of the groove through bearing seats, a support transmission belt (39) is arranged on the outer wall of the transmission roller one (37) and the transmission roller two (38), and a plurality of support rollers (52) are rotationally connected to the inner wall of the groove through bearing seats, and the support rollers (52) are in contact with the inner wall of the support transmission belt (39).