A synchronous conveying device of a book appearance detection equipment

Abstract

The utility model discloses a kind of synchronous conveying devices of book appearance detection equipment, belong to machine vision detection equipment technical field. Including the three section transmission units being arranged along book conveying direction, driving mechanism and rejection mechanism. Three section transmission units are cooperated through support frame, crosspiece, backing plate, flat belt and guide roller body, realize book steady sending;Driving mechanism is with servo motor as source, and guarantee synchronous rotation by speed reducer, synchronous belt etc.;Rejection mechanism is composed of push-pull device, electromagnetic valve and the third section support frame with bearing, can drive its oblique rejection unqualified book. Solve the problem of existing technology function integration loss, improve detection efficiency and accuracy, adapt to industrialization demand, with structure stable, strong adaptation, high automation advantage, reduce manpower cost and quality risk.

Description

Technical Field

[0001] This utility model relates to the field of machine vision inspection equipment technology, specifically a synchronous conveying device applied in book appearance inspection equipment, used to achieve stable book conveying and defective product rejection. Background Technology

[0002] In book post-printing binding production lines, the appearance quality inspection of the finished book after the three-sided cutting process is a crucial step in ensuring product quality. Currently, this step mainly relies on manual sampling, which has the following technical drawbacks:

[0003] Currently, the final appearance inspection of books after three-sided cutting is typically performed by only 1-2 workers as a rough check. Due to the high production line speed (up to 15,000 books / hour), manual inspection can only detect major issues such as severely soiled covers and obvious cutting deviations, while the rate of missing details such as missing white space on the cover, skewed cutting (deviation ≤1mm), misaligned spines, and folded corners is extremely high. "Small but serious problems are often overlooked, which can have a negative impact on the market," indicating that manual inspection cannot meet the requirements of high-precision inspection and poses significant quality risks.

[0004] To address these issues, existing companies primarily rely on increasing the number of manual spot checks. However, this approach carries a higher risk of missed detections, reflecting a lack of efficient automated testing solutions in the market. Furthermore, the current technology lacks a transmission device integrated with the testing system, leading to problems such as position calculation errors and untimely rejection during the testing process, making it difficult to meet the demands of industrial production.

[0005] The existing fully manual inspection model is not only costly in terms of labor, but also causes further losses to enterprises due to the circulation of defective products caused by missed inspections. Traditional technologies cannot balance inspection accuracy and efficiency, making it difficult for enterprises to balance quality control and cost management. There is an urgent need for an automated device that integrates synchronous transmission and precise rejection functions to achieve high-precision and high-efficiency inspection of the appearance of finished books. Utility Model Content

[0006] In view of this, the present invention aims to overcome the shortcomings of the existing technology in lacking a three-stage synchronous conveying and rejection integrated device suitable for book appearance inspection, and provides a synchronous conveying device for book appearance inspection equipment. Through the synchronous conveying design of the three-stage structure, the book is stably conveyed, and during the synchronous rotation of the third conveying unit, the rejection control structure is used to complete the automated rejection of defective products, so as to solve the gap in the existing technology in lacking equipment that integrates synchronous conveying and precise rejection functions, and meet the needs of efficient inspection of book appearance in industrial production.

[0007] To achieve the above objectives, this utility model provides a synchronous conveying device for a book appearance inspection equipment, comprising:

[0008] The first, second, and third transport units are arranged sequentially along the book transport direction;

[0009] A drive mechanism is used to drive the first segment conveying unit, the second segment conveying unit, and the third segment conveying unit to rotate synchronously.

[0010] The rejection mechanism is located in the third-stage conveying unit and is used to drive the third-stage conveying unit to tilt downwards while the third-stage conveying unit rotates synchronously with the first and second-stage conveying units, so that the defective books fall off.

[0011] Furthermore, the first, second, and third conveying units each include a first support frame, a second support frame, and a third support frame; the first, second, and third support frames are respectively provided with first, second, and third horizontal supports that serve a supporting function; a first pad is provided on a plurality of first horizontal supports, a second pad is provided on a plurality of second horizontal supports, and a third pad is provided on a plurality of third horizontal supports; it also includes a first flat belt, a second flat belt, and a third flat belt, which are respectively supported on the first pad, the second pad, and the third pad, respectively. Through the hierarchical cooperation of the support frame, the horizontal supports, and the pads, an installation foundation is provided for the flat belt.

[0012] Furthermore, the drive mechanism includes:

[0013] The drive motor has its output shaft connected to a reducer.

[0014] The first drive roller is connected to the reducer via a first synchronous belt;

[0015] The second drive roller is connected to the first drive roller via a second synchronous belt;

[0016] A synchronous shaft is connected to the second drive roller via a third synchronous belt, and the synchronous shaft drives the third section of the conveyor unit to rotate.

[0017] The first synchronous belt, the second synchronous belt, and the third synchronous belt are respectively connected to the first drive roller, the second drive roller, and the synchronous shaft via synchronous pulleys.

[0018] Furthermore, both ends of the first active roller, the second active roller, and the synchronous shaft are connected to the equipment frame via bearings, and the drive motor is a servo motor that can control the synchronous rotation speed of the first, second, and third conveying units.

[0019] Furthermore, the rejection mechanism includes:

[0020] A push-pull device, which is an electric cylinder or a pneumatic cylinder, has one end connected to the equipment frame and the other end serving as the output end of the push-pull device, and the output push or pull force acts on the third transmission unit.

[0021] A solenoid valve, electrically connected to the push-pull device, is used to control the extension and retraction of the push-pull device to adjust the tilt angle of the third transmission unit.

[0022] The third support frame of the third segment conveying unit includes a left side plate and a right side plate. One end of the left side plate and one end of the right side plate are respectively mounted on a synchronous shaft via bearings. The outer ring of the bearing is fixed to one end of the left side plate and one end of the right side plate. The synchronous shaft cooperates with the inner ring of the bearing, so that the third segment conveying unit can swing around the bearing axis to achieve downward tilting.

[0023] Furthermore, the extension and retraction stroke of the push-pull device is adjustable, and the tilt angle of the third transmission unit can be controlled to vary within the range of 0° to 30°.

[0024] Furthermore, the first transmission unit includes a plurality of first guide rollers, all of which are disposed below the first flat belt and together with the first drive roller form a support transmission structure for the first flat belt. When the first drive roller rotates, it drives the first flat belt to circulate around the plurality of first guide rollers.

[0025] The second section conveying unit includes several second guide rollers, all of which are disposed below the second flat belt and together with the second drive roller form the support and transmission structure of the second flat belt. When the second drive roller rotates, it drives the second flat belt to circulate around the several second guide rollers.

[0026] The third transmission unit includes a third guide roller, which is used to assist in supporting the third flat belt and work with the synchronous shaft to ensure the transmission stability of the third flat belt.

[0027] Furthermore, the first, second, and third synchronous belts are all toothed synchronous belts, and the synchronous belt pulleys are provided with teeth that are adapted to the toothed synchronous belts, so that synchronous transmission can be achieved through tooth meshing.

[0028] The present invention, by adopting the above technical solution, has at least the following beneficial effects:

[0029] 1. This utility model achieves high-precision synchronous rotation of the first, second, and third transmission units through the coordinated design of the drive motor, reducer, synchronous belt, synchronous shaft, and toothed synchronous pulley in the drive mechanism, forming a three-section synchronous transmission system. This ensures that the book maintains a stable position and speed throughout the entire transmission process, providing accurate transmission conditions for book appearance inspection and effectively improving inspection accuracy.

[0030] 2. The rejection mechanism in the third-stage conveying unit of this invention breaks through the limitations of traditional single-function equipment. While the third-stage conveying unit rotates synchronously with the first and second-stage units, it utilizes an electric or pneumatic cylinder in conjunction with a solenoid valve to precisely control the tilt angle of the third-stage conveying unit within the range of 0°-30°, achieving automated rejection of defective products. This design integrates synchronous conveying and precise rejection functions, filling the gap in existing technology for such integrated equipment and meeting the urgent need for efficient inspection of book appearance in industrial production.

[0031] 3. In this utility model, the first support frame, the second support frame, and the third support frame of the three-section conveyor unit, together with the crossbar and the pad, provide a stable installation structure for the flat belt. At the same time, the first guide roller, the second guide roller, and the drive roller form a support transmission structure, and the third guide roller assists in supporting the third flat belt, which enhances the overall rigidity of the device, reduces shaking during the conveying process, and ensures the smooth transport of books.

[0032] 4. This utility model uses a servo motor to control the rotation speed of the transmission unit, which can flexibly adapt to the testing needs of books of different specifications; the extension and retraction stroke of the push-pull device in the elimination mechanism is adjustable, making the tilt angle of the third transmission unit controllable, improving the applicability of the device to books of different thicknesses and weights, and expanding the application scenarios.

[0033] 5. This utility model upgrades traditional manual inspection to automated inspection, reducing manpower input and lowering enterprise labor costs; at the same time, with its high-precision synchronous transmission and accurate rejection function, it effectively prevents defective products from entering the market, reduces potential losses caused by quality problems, and achieves dual optimization of quality and cost. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the overall structure of the synchronous transmission device of this utility model;

[0036] Figure 2 This is a side view of the drive mechanism of the synchronous transmission device of this utility model;

[0037] Figure 3 This is a detailed view of the drive mechanism of the synchronous transmission device of this utility model;

[0038] Figure 4 This is a schematic diagram of the layout of the guide rollers of the synchronous conveying device of this utility model;

[0039] Figure 5 This is a schematic diagram of the synchronous belt distribution of the synchronous conveyor device of this utility model;

[0040] Figure 6 This is the third-stage transmission unit of the synchronous transmission device of this utility model, excluding structural details. Figure 1 ;

[0041] Figure 7 This is the third-stage transmission unit of the synchronous transmission device of this utility model, excluding structural details. Figure 2 .

[0042] In the diagram: 1. First flat belt; 2. First pad; 3. First guide roller; 4. Second flat belt; 5. Second pad; 6. Second guide roller; 7. Third flat belt; 8. Third pad; 9. Drive motor; 10. Reducer; 11. First synchronous belt; 12. First drive roller; 13. Second synchronous belt; 14. Second drive roller; 15. Third synchronous belt; 16. Synchronous shaft; 17. Synchronous pulley; 18. Bearing side plate; 19. Bearing; 20. Push-pull device; 21. Third guide roller. Detailed Implementation

[0043] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this invention as detailed in the appended claims.

[0044] like Figures 1 to 7 As shown, this embodiment provides a synchronous conveying device for a book appearance inspection equipment, including: a first conveying unit, a second conveying unit, and a third conveying unit arranged sequentially along the book conveying direction;

[0045] A drive mechanism is used to drive the first segment conveying unit, the second segment conveying unit, and the third segment conveying unit to rotate synchronously.

[0046] The rejection mechanism is located in the third-stage conveying unit and is used to drive the third-stage conveying unit to tilt downwards while the third-stage conveying unit rotates synchronously with the first and second-stage conveying units, so that the defective books fall off.

[0047] In one implementation, the first, second, and third conveying units in this embodiment each include a first supporting frame, a second supporting frame, and a third supporting frame. First, second, and third horizontal bars are respectively provided on the first, second, and third supporting frames. A first pad 2 is provided on several first horizontal bars, a second pad 5 is provided on several second horizontal bars, and a third pad 8 is provided on several third horizontal bars. The system also includes a first flat belt 1, a second flat belt 4, and a third flat belt 7, which are respectively supported on the first pad 2, the second pad 5, and the third pad 8. Through the hierarchical cooperation of the supporting frames, horizontal bars, and pads, the weight of the books carried by the flat belt can be distributed, reducing deformation caused by uneven stress. Simultaneously, a flat and stable mounting reference surface is provided for the flat belt, ensuring that the books will not shift due to belt swaying during conveying, thus guaranteeing subsequent detection accuracy.

[0048] In one implementation method, in this embodiment, the driving mechanism includes:

[0049] Drive motor 9, whose output shaft is connected to reducer 10;

[0050] The first drive roller 12 is connected to the reducer 10 via the first synchronous belt 11;

[0051] The second drive roller 14 is connected to the first drive roller 12 via the second synchronous belt 13;

[0052] Synchronous shaft 16 is connected to the second drive roller 14 via a third synchronous belt 15, and synchronous shaft 16 drives the third section conveyor unit to rotate.

[0053] The first synchronous belt 11, the second synchronous belt 13, and the third synchronous belt 15 are respectively connected to the first drive roller 12, the second drive roller 14, and the synchronous shaft 16 via synchronous pulleys 17. The power output from the drive motor 9 is reduced and amplified by the reducer 10, and then transmitted precisely to each drive roller and synchronous shaft 16 through the toothed meshing of the synchronous belt and the synchronous pulley 17. This ensures that the three conveying units operate stably at the same speed, preventing books from getting stuck or misaligned at the joints between sections, and providing a stable book conveying rhythm for the testing equipment.

[0054] In one implementation, the first drive roller 12, the second drive roller 14, and the synchronous shaft 16 are all connected to the equipment frame at both ends via bearings 19. The drive motor 9 is a servo motor, capable of controlling the synchronous rotation speed of the first, second, and third conveying units. The bearings 19 significantly reduce frictional resistance during roller rotation, minimizing power loss and extending equipment lifespan. The servo motor 9 can precisely and in real-time adjust the rotation speed of the three conveying units according to different book specifications and testing requirements, making the device suitable for diverse production scenarios and improving equipment versatility.

[0055] As one implementation method, the rejection mechanism in this embodiment includes:

[0056] The push-pull device 20 (electric cylinder or pneumatic cylinder) has one end connected to the equipment frame and the other end acting on the third section of the conveying unit.

[0057] A solenoid valve, electrically connected to the push-pull device 20, is used to control the extension and retraction of the push-pull device 20 to adjust the tilt angle of the third transmission unit.

[0058] The third support frame of the third-section conveying unit includes a left side plate and a right side plate. One end of the left side plate and one end of the right side plate are respectively mounted on the synchronous shaft 16 via bearings 19. The outer ring of the bearing 19 is fixed to one end of the left side plate and one end of the right side plate. The synchronous shaft 16 cooperates with the inner ring of the bearing 19, allowing the third-section conveying unit to swing around the axis of the bearing 19 to achieve downward tilting. An electric cylinder or pneumatic cylinder serves as the power source, capable of quickly responding to the control signal of the solenoid valve and driving the third-section conveying unit to tilt in a very short time. The design of the bearing 19 and the synchronous shaft 16 ensures that the third-section conveying unit operates synchronously with the other two sections during normal conveying, and also provides a flexible rotation fulcrum for its tilting and rejection action, ensuring that defective books can be removed from the conveyor line in a timely and accurate manner.

[0059] In one implementation, the extension stroke of the push-pull device 20 in this embodiment is adjustable, and the tilt angle of the third-section conveying unit can be controlled to vary within the range of 0° to 30°. By adjusting the extension stroke of the push-pull device 20, it can adapt to the rejection requirements of books of different thicknesses and weights, avoid the accidental rejection of normal books or the incomplete rejection of unqualified books due to improper tilt angle, and further improve the accuracy and reliability of the rejection action.

[0060] In one embodiment, the first segment conveying unit includes a plurality of first guide rollers 3. The plurality of first guide rollers 3 are all disposed below the first flat belt 1 and together with the first drive roller 12, they constitute the support and transmission structure of the first flat belt 1. When the first drive roller 12 rotates, it drives the first flat belt 1 to circulate around the plurality of first guide rollers 3.

[0061] The second section conveying unit includes a plurality of second guide rollers 6, which are all disposed below the second flat belt 4 and together with the second drive roller 14 form the support and transmission structure of the second flat belt 4. When the second drive roller 14 rotates, it drives the second flat belt 4 to circulate around the plurality of second guide rollers 6.

[0062] The third conveying unit includes a third guide roller 21, which assists in supporting the third flat belt 7 and works in conjunction with the synchronous shaft 16 to ensure the transmission stability of the third flat belt 7. The guide roller increases the contact area between the flat belt and the roller, reduces the sag of the flat belt during operation, keeps the flat belt taut, and ensures that the book remains in a stable and uniform motion during conveying, providing stable conveying conditions for accurate detection.

[0063] In one implementation, the first synchronous belt 11, the second synchronous belt 13, and the third synchronous belt 15 in this embodiment are all toothed synchronous belts. The synchronous pulley 17 is provided with teeth adapted to the toothed synchronous belts, and synchronous transmission is achieved through tooth meshing. The meshing transmission method between the toothed synchronous belt and the pulley 17 can eliminate the slippage phenomenon existing in traditional belt drives, ensure lossless power transmission of the drive mechanism, and thus achieve high-precision synchronization of the three transmission units, meeting the stringent requirements of book appearance inspection for the stability and accuracy of the transmission device.

[0064] Working principle of this embodiment

[0065] After the drive motor 9 starts, the output power is transmitted to the reducer 10. The reducer 10 reduces the speed and increases the torque, which drives the first drive roller 12 to rotate via the first synchronous belt 11. The first drive roller 12 then drives the second drive roller 14 via the second synchronous belt 13. The second drive roller 14 further drives the synchronous shaft 16 to rotate via the third synchronous belt 15, ultimately achieving synchronous rotation of the first, second, and third conveyor units. During this process, the servo motor 9 monitors and adjusts the rotation speed of each conveyor unit in real time to ensure consistent speed.

[0066] During book transport, the first flat belt 1, the second flat belt 4, and the third flat belt 7 run on their respective pads (first pad 2, second pad 5, and third pad 8), supported and driven by guide rollers (first guide roller 3, second guide roller 6, and third guide roller) and drive rollers (first drive roller 12 and second drive roller 14) to maintain a stable transport state. After the book passes through the inspection area and completes the appearance inspection, if the inspection system determines that a book is defective, a control signal will be transmitted to the solenoid valve. Upon receiving the signal, the solenoid valve controls the push-pull device 20 (electric cylinder or pneumatic cylinder) to extend or retract, pushing the third support frame of the third section conveyor unit to tilt downwards around the axis of bearing 19. The tilt angle is adjusted within the range of 0°-30° according to a preset value. At this point, the defective books slide down the inclined third flat belt 7 under the action of gravity, completing the rejection action; while other normal books continue to be smoothly conveyed on the first and second conveyor units that are rotating synchronously and the third conveyor unit before the inclination, thereby realizing the automatic separation of qualified and defective books.

[0067] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A synchronous conveying device for a book appearance inspection equipment, characterized in that: include: The first, second, and third transport units are arranged sequentially along the book transport direction; A drive mechanism is used to drive the first segment conveying unit, the second segment conveying unit, and the third segment conveying unit to rotate synchronously. The rejection mechanism is located in the third-stage conveying unit and is used to drive the third-stage conveying unit to tilt downwards while the third-stage conveying unit rotates synchronously with the first and second-stage conveying units, so that the defective books fall off.

2. The synchronous transmission device according to claim 1, characterized in that: The first, second, and third conveying units each include a first support frame, a second support frame, and a third support frame. First, second, and third horizontal supports are respectively provided on the first, second, and third support frames to provide support. A first pad is provided on several first horizontal supports, a second pad is provided on several second horizontal supports, and a third pad is provided on several third horizontal supports. The units also include a first flat belt, a second flat belt, and a third flat belt, which are respectively supported on the first, second, and third pads. The hierarchical arrangement of the support frames, horizontal supports, and pads provides an installation foundation for the flat belts.

3. The synchronous transmission device according to claim 2, characterized in that: The drive mechanism includes: The drive motor has its output shaft connected to a reducer. The first drive roller is connected to the reducer via a first synchronous belt; The second drive roller is connected to the first drive roller via a second synchronous belt; A synchronous shaft is connected to the second drive roller via a third synchronous belt, and the synchronous shaft drives the third section of the conveyor unit to rotate. The first synchronous belt, the second synchronous belt, and the third synchronous belt are respectively connected to the first drive roller, the second drive roller, and the synchronous shaft via synchronous pulleys.

4. The synchronous transmission device according to claim 3, characterized in that: Both ends of the first drive roller, the second drive roller, and the synchronous shaft are connected to the equipment frame via bearings, and the drive motor is a servo motor that can control the synchronous rotation speed of the first section conveying unit, the second section conveying unit, and the third section conveying unit.

5. The synchronous transmission device according to claim 4, characterized in that: The rejection mechanism includes: A push-pull device, which is an electric cylinder or a pneumatic cylinder, has one end connected to the equipment frame and the other end serving as the output end of the push-pull device, and the output push or pull force acts on the third transmission unit. A solenoid valve, electrically connected to the push-pull device, is used to control the extension and retraction of the push-pull device to adjust the tilt angle of the third transmission unit. The third support frame of the third segment conveying unit includes a left side plate and a right side plate. One end of the left side plate and one end of the right side plate are respectively mounted on a synchronous shaft via bearings. The outer ring of the bearing is fixed to one end of the left side plate and one end of the right side plate. The synchronous shaft cooperates with the inner ring of the bearing, so that the third segment conveying unit can swing around the bearing axis to achieve downward tilting.

6. The synchronous transmission device according to claim 5, characterized in that: The extension and retraction stroke of the push-pull device is adjustable, and the tilt angle of the third transmission unit can be controlled to vary from 0° to 30°.

7. The synchronous transmission device according to claim 6, characterized in that: The first transmission unit includes a plurality of first guide rollers, all of which are disposed below the first flat belt and together with the first drive roller form a support transmission structure for the first flat belt. When the first drive roller rotates, it drives the first flat belt to circulate around the plurality of first guide rollers. The second section conveying unit includes several second guide rollers, all of which are disposed below the second flat belt and together with the second drive roller form the support and transmission structure of the second flat belt. When the second drive roller rotates, it drives the second flat belt to circulate around the several second guide rollers. The third transmission unit includes a third guide roller, which is used to assist in supporting the third flat belt and, together with the synchronous shaft, ensures the transmission stability of the third flat belt.

8. The synchronous transmission device according to claim 7, characterized in that: The first, second, and third synchronous belts are all toothed synchronous belts, and the synchronous belt pulleys are provided with teeth that are adapted to the toothed synchronous belts, so that synchronous transmission can be achieved through tooth meshing.

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