A printing machine discharge collecting device for notebook processing

Abstract

The application is suitable for the technical field of notebook processing material transfer, and provides a glue printing machine discharge collecting device for notebook processing, which comprises a base, a support frame fixed on the top of the base, two support rollers rotatably installed in the support frame, and a conveying belt sleeved outside the two support rollers and arranged in groups. The glue printing machine discharge collecting device for notebook processing provided by the scheme can support printed paper one by one through the support rods, so as to avoid text and image wear and transfer pollution caused by paper stacking when the ink is not dry. The first visual detection equipment is arranged to automatically identify dirt on the surface of the support rod, and the rod replacement structure is arranged to automatically replace the contaminated support rod, so as to avoid secondary pollution. The device realizes integrated operation of anti-pollution, automatic detection, intelligent rod replacement and classified collection in the notebook printing discharge process, and improves the printing quality and production efficiency.

Description

Technical Field

[0001] This invention belongs to the field of material transfer technology in notebook computer processing, and particularly relates to a material collection device for offset printing machines used in notebook computer processing. Background Technology

[0002] Notebook processing refers to the production process of turning paper into paper notebooks through printing, cutting, binding and other processes. It mainly includes cover printing, inner page printing, collating, binding (such as saddle stitching, perfect binding, spiral binding, etc.), and cutting the finished product. The offset printing machine mainly undertakes the printing task in the notebook processing. It uses the principle that oil and water are immiscible to transfer the text and images to the rubber blanket through the printing plate, and then the rubber blanket transfers the images to the paper surface, thereby achieving high-quality color or monochrome printing.

[0003] In existing notebook printing processes, a conveyor belt is used to receive and collect the printed paper. While this method enables continuous material collection, the ink on the paper is not dried in time, and directly stacking and collecting the paper can damage the surface graphics and contaminate other papers, affecting the processing quality. Summary of the Invention

[0004] This invention provides a material collection device for offset printing machines used in notebook computer processing, aiming to solve the problem mentioned in the background art that if the ink on the paper is not dried in time, directly stacking and collecting the paper will cause damage to the surface graphics and also contaminate other papers, affecting the processing quality.

[0005] To solve the above problems, the present invention is implemented as follows: a material collection device for offset printing machines used in notebook computer processing, comprising: a base; a support frame fixed to the top of the base; two support rollers rotatably mounted within the support frame; a conveyor belt sleeved around the two support rollers, the conveyor belts being arranged in groups, with multiple support rods for supporting printed materials provided between the two conveyor belts, and a first clamping plate fixed on each of the two conveyor belts for supporting the support rods; a windproof cover fixed to the support frame and sleeved around the support rollers, the first clamping plate, and the support rods; a rod-changing structure disposed on the base for replacing contaminated support rods; and a first visual inspection device mounted on the base for acquiring and analyzing image information of the support rods to determine whether the support rods are dirty.

[0006] Preferably, the rod-changing structure includes a rack slidably mounted on the support frame, a first gear rotatably mounted on the support frame, the first gear meshing with the rack, a plurality of second clamping plates fixed on the rack, a plurality of spare rods respectively clamped on the plurality of second clamping plates, a first electric telescopic rod fixed on the base, an adjusting plate mounted on the output rod of the first electric telescopic rod, an air pump mounted on the base, and a connecting pipe fixed between the adjusting plate and the air inlet end of the air pump. The adjusting plate has an air passage communicating with the connecting pipe, and the adjusting plate has a plurality of suction ports communicating with the air passage.

[0007] Preferably, the top of the adjusting plate is equipped with a sealing gasket to prevent air leakage, so as to prevent the rod from falling off when the support rod and spare rod are installed or removed. The connecting pipe is equipped with a three-way valve to adjust the negative pressure state in the air passage to realize the picking and placing of the rod. A transmission structure for driving the support roller and the support shaft to rotate is provided between the base and the support frame.

[0008] Preferably, the transmission structure includes a first motor fixed on the base, a second gear mounted on the output shaft of the first motor, a third gear fixed on any one of the support rollers, a fixed plate mounted on the top of the base, a fourth gear rotatably mounted on the fixed plate via a first transmission shaft, a fifth gear rotatably mounted on the support frame via a second transmission shaft, a sixth gear fixed on the support shaft, and a rubber belt disposed between the first transmission shaft and the output shaft of the first motor for transmission. The fifth gear and the sixth gear mesh for transmission. The fixed plate is provided with two transmission connectors for adjusting the transmission connection state between the first transmission shaft and the support shaft, and between the output shaft of the first motor and the support rollers, respectively.

[0009] Preferably, the transmission connector includes a second electric telescopic rod fixed to the fixed plate, a support plate mounted on the output rod of the second electric telescopic rod, and a transmission gear rotatably mounted on the support plate. One of the transmission gears simultaneously meshes with the second gear and the third gear to transmit power to the support roller, and the other transmission gear simultaneously meshes with the fourth gear and the fifth gear to transmit power to the support shaft.

[0010] Preferably, the protective cover is provided with an air-drying structure for assisting in drying ink. The air-drying structure includes a fan box fixed to the top of the protective cover, an exhaust pipe installed at the exhaust end of the fan box, and a distribution box installed inside the protective cover. The distribution box is connected to the exhaust pipe. The distribution box is provided with multiple guide plates for guiding the flow of gas, and the bottom of the distribution box is provided with an exhaust port.

[0011] Preferably, an auxiliary detection structure is detachably installed on the protective cover. The auxiliary detection structure includes a blocking plate detachably installed on the top of the protective cover, a third electric telescopic rod fixed on the blocking plate, an adjusting frame installed on the output rod of the third electric telescopic rod, a pressure roller rotatably installed in the adjusting frame, the pressure roller contacting the surface of the printed paper to blur undried ink, and a second motor fixed on the adjusting frame to drive the pressure roller to rotate. A second visual inspection device is fixed on the protective cover to acquire and analyze image information of the printed graphics on the paper surface. The second visual inspection device is used to determine the integrity of the graphics on the paper surface.

[0012] Preferably, a support block is installed on the top inner wall of the adjusting frame, and a sponge pad is fixed at the bottom of the support block to contact the pressure roller and assist in cleaning the pressure roller. A connecting rod is fixed on the support block, and a support rod is detachably installed on the connecting rod by bolts. A scraper is fixed on the support rod, and the scraper is used to scrape off the ink adhering to the surface of the pressure roller to reduce the cleaning pressure on the sponge pad.

[0013] Preferably, the inner wall of the support frame is provided with a guide groove, and a guide block is slidably installed in the guide groove. The guide block is connected to the rack and is used to limit the movement path of the rack.

[0014] Preferably, both sides of the inner wall of the first card plate are provided with protruding strips, and both the support rod and the spare rod are provided with recesses for accommodating the protruding strips. The protruding strips cooperate with the recesses to prevent the support rod and the spare rod from falling out of the first card plate. A limiting plate that contacts the conveyor belt is fixed on the inner wall of the support frame to assist in supporting the conveyor belt.

[0015] Compared with related technologies, the offset printing machine output collection device for notebook computer processing provided by the present invention has the following beneficial effects: Compared with existing technologies, the offset printing press output collection device provided in this solution for notebook computer processing uses support rods to receive each sheet of printed paper at intervals, avoiding image wear and transfer contamination caused by paper stacking before the ink dries. A drying structure accelerates ink curing, and a first-vision inspection device automatically identifies dirt on the support rod surface. Combined with a rod-changing structure, contaminated support rods are automatically replaced, preventing secondary contamination. An auxiliary inspection structure uses pressure rollers to simulate friction conditions and, in conjunction with a second-vision inspection device, assesses the ink drying degree and image integrity. Combined with a conveyor belt structure and collection box, qualified and unqualified products are automatically sorted and collected. This integrated operation of pollution prevention, automatic detection, intelligent rod changing, and sorting collection during notebook printing output improves printing quality and production efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of an offset printing machine output collection device for notebook computer processing provided by the present invention; Figure 2 This is a three-dimensional structural diagram of the conveyor belt structure in this invention; Figure 3 This is a three-dimensional structural diagram of the auxiliary detection structure in this invention; Figure 4 This is a schematic diagram of the assembly structure of the adjusting frame, support block, connecting rod, support rod and scraper in this invention; Figure 5 This is a schematic diagram of the front cross-sectional structure of the present invention; Figure 6 This is a top view of the structure of the present invention; Figure 7 This is a side view of the structure of the present invention; Figure 8 for Figure 5 An enlarged structural diagram of part A shown in the figure; Figure 9 for Figure 6 An enlarged structural diagram of part B shown in the figure; Figure 10 for Figure 9 An enlarged structural diagram of section C shown in the figure; Figure 11 This is a schematic diagram of the assembly structure of the first card plate and the support rod in this invention; Figure 12 This is a schematic diagram of the front view of the air-drying structure in this invention.

[0017] Reference numerals: 1. Base; 2. Support frame; 3. Support roller; 4. Conveyor belt; 5. First clamping plate; 6. Support rod; 7. Protective cover; 8. Rack; 9. First gear; 10. Second clamping plate; 11. Spare rod; 12. First electric telescopic rod; 13. Adjusting plate; 14. Air pump; 15. Connecting pipe; 16. Limiting plate; 17. First motor; 18. Second gear; 19. Third gear; 20. Fixing plate; 21. Fourth gear; 22. Fifth gear; 23. Sixth gear; 24. Transmission connector; 25. Rubber belt; 26. Second electric telescopic rod; 27. Support plate 28. Transmission gear; 29. ​​First vision inspection equipment; 30. Second vision inspection equipment; 31. Air drying structure; 32. Auxiliary inspection structure; 33. Fan box; 34. Exhaust pipe; 35. Diverter box; 36. Blocking plate; 37. Third electric telescopic rod; 38. Adjusting frame; 39. Pressure roller; 40. Support block; 41. Sponge pad; 42. Second motor; 43. Connecting rod; 44. Support rod; 45. Scraper; 46. Guide plate; 47. Conveyor belt structure; 48. Collection box; 49. Protective plate; 50. Centering plate; 51. Fourth electric telescopic rod; 52. Guide groove; 53. Protruding strip. Detailed Implementation

[0018] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0019] This invention provides a material collection device for offset printing machines used in notebook computer processing, such as... Figure 1-12 As shown, the offset printing machine output collection device for notebook computer processing includes: a base 1; a support frame 2 fixed to the top of the base 1; two support rollers 3 rotatably mounted inside the support frame 2; a conveyor belt 4 sleeved on the two support rollers 3, the conveyor belts 4 being arranged in groups, with multiple support rods 6 between the two conveyor belts 4 for supporting the printed material, and a first clamping plate 5 fixed on each of the two conveyor belts 4 for supporting the support rods 6; a protective cover 7 fixed on the support frame 2 and sleeved on the support rollers 3, the first clamping plate 5, and the support rods 6 for wind protection; a rod replacement structure set on the base 1 for replacing the contaminated support rods 6; and a first visual inspection device 29 installed on the base 1 for acquiring and analyzing image information of the support rods 6 to determine whether the support rods 6 are dirty.

[0020] In this embodiment, after the offset printing machine completes printing, the paper is output from the discharge port and falls onto the support rod 6 between the two conveyor belts 4. The two conveyor belts 4 operate synchronously under the drive of the support roller 3, so that the support rod 6, which carries the paper, moves continuously along the conveying direction. The paper is distributed in a spaced manner on the support rod 6, and a certain distance is maintained between adjacent papers to avoid direct contact. The protective cover 7 forms a closed protective space for the paper and the support rod 6 during the conveying process, blocking the interference of external airflow on the paper. When the support rod 6 moves with the conveyor belt 4 to the detection area of ​​the first vision inspection device 29, the first vision inspection device 29 collects images of the surface of the support rod 6 and analyzes and processes the acquired image information to determine whether there is ink residue or dirt on the surface of the support rod 6. When it is determined that the support rod 6 has been contaminated, the rod replacement structure is activated, the contaminated support rod 6 is removed from the first card plate 5 and replaced with a clean support rod 6. The replaced clean support rod 6 continues to move with the conveyor belt 4 to carry subsequent printed paper. By setting up support rods 6 to support the printed sheets one by one at intervals, direct overlapping contact between the sheets is prevented, effectively avoiding surface wear and ink transfer contamination caused by paper stacking before the ink dries, thus improving the printing quality of the finished notebook. The protective cover 7 provides a stable internal environment for paper transport and ink drying, preventing paper shifting caused by external airflow. The first vision detection device 29 can automatically identify the degree of dirt on the surface of the support rods 6, eliminating the need for manual inspection and improving detection efficiency and accuracy. The rod replacement structure can replace the contaminated support rods 6 in a timely manner based on the detection results, preventing secondary contamination of subsequent sheets by the contaminated support rods 6 during continuous operation and reducing the scrap rate caused by paper contamination.

[0021] In a further preferred embodiment of the present invention, the rod-changing structure includes a rack 8 slidably mounted on the support frame 2, a first gear 9 rotatably mounted on the support frame 2, the first gear 9 meshing with the rack 8, a plurality of second clamping plates 10 fixed on the rack 8, a plurality of spare rods 11 respectively clamped on the plurality of second clamping plates 10, a first electric telescopic rod 12 fixed on the base 1, an adjusting plate 13 mounted on the output rod of the first electric telescopic rod 12, an air pump 14 mounted on the base 1, and a connecting pipe 15 fixed between the adjusting plate 13 and the air inlet end of the air pump 14. The adjusting plate 13 is provided with an air passage communicating with the connecting pipe 15, and the adjusting plate 13 is provided with a plurality of suction ports communicating with the air passage.

[0022] In this embodiment, spare rods 11 are installed at intervals on the second clamping plate 10 (i.e., there is an empty second clamping plate 10 between two spare rods 11). When the first visual inspection device 29 determines that there is dirt on the surface of the current support rod 6, the rod replacement structure is activated. The first electric telescopic rod 12 drives the adjusting plate 13 to move upward to the position below the contaminated support rod 6. The air pump 14 starts running and transmits negative pressure to the air passage inside the adjusting plate 13 through the connecting pipe 15. Multiple suction ports on the surface of the adjusting plate 13 generate suction force, adsorbing the contaminated support rod 6 from the first clamping plate 5. Then the first electric telescopic rod 12 retracts, taking the dirty support rod 6 away from the area of ​​the conveyor belt 4 and locking it into the empty second clamping plate 10. After the rod removal action is completed, The rack 8 slides horizontally on the support frame 2, and the rack 8 is meshed with the first gear 9. The first gear 9 rotates on the support shaft to match the linear motion of the rack 8. Multiple second clamping plates 10 fixed on the rack 8 move synchronously with the rack 8, and the spare rods 11 clamped on the second clamping plates 10 are sequentially transported to the rod changing station. When the spare rods 11 reach the designated position, the first electric telescopic rod 12 drives the adjusting plate 13 to rise again, and the air pump 14 continues to work to generate suction force at the suction port, which picks up the spare rods 11 from the second clamping plates 10. Then the first electric telescopic rod 12 drives the adjusting plate 13 and the spare rods 11 to the first clamping plate 5, and the clean spare rods 11 are installed on the first clamping plate 5 to complete the entire rod changing process. Through the meshing of rack 8 and first gear 9, multiple spare rods 11 are transported and positioned in an orderly manner, ensuring that a clean spare rod 11 is available for use each time a rod is replaced. Adjustment plate 13, together with air pump 14 and connecting pipe 15, forms a negative pressure adsorption system, which uses suction port to non-contactly grasp support rod 6. The first electric telescopic rod 12 provides lifting and lowering driving force, allowing adjustment plate 13 to flexibly switch between rod picking and rod loading.

[0023] In a further preferred embodiment of the present invention, a sealing gasket for preventing air leakage is installed on the top of the adjusting plate 13 to prevent the rod from falling off when the support rod 6 and the spare rod 11 are installed or removed. A three-way valve is provided on the connecting pipe 15 to adjust the negative pressure state in the air passage to realize the picking and placing of the rod. A transmission structure for driving the support roller 3 and the support shaft to rotate is provided between the base 1 and the support frame 2.

[0024] In this embodiment, during the rod replacement process, when the adjusting plate 13 picks up the support rod 6 or the spare rod 11 through the suction port, the sealing gasket on the top of the adjusting plate 13 is tightly attached to the surface of the rod body to form a closed suction space, preventing gas from leaking from the gap between the rod body and the adjusting plate 13, ensuring that sufficient negative pressure suction force is maintained at the suction port, so that the support rod 6 or the spare rod 11 will not fall off due to insufficient suction force during the installation, disassembly and movement. When it is necessary to release the rod body from the suction port, the air path state is switched by operating the three-way valve on the connecting pipe 15, so that the air passage inside the adjusting plate 13 changes from negative pressure state to normal pressure or positive pressure state, and the suction force at the suction port is eliminated accordingly, and the rod body can be smoothly removed from the suction port to complete the placement action. By setting a sealing gasket, the problem of the rod accidentally falling off due to decreased adsorption force caused by air leakage during adsorption and handling is solved, which improves the reliability and stability of the rod replacement operation and avoids equipment damage or production interruption that may be caused by the rod falling off. By setting a three-way valve, the negative pressure and normal pressure states of the air circuit can be switched quickly, realizing the control of rod picking and releasing. The transmission structure integrates the power source of the support roller 3 and the support shaft, so that the operation of the conveyor belt 4 and the sliding of the rack 8 can be coordinated at the power level.

[0025] In a further preferred embodiment of the present invention, the transmission structure includes a first motor 17 fixed on the base 1, a second gear 18 mounted on the output shaft of the first motor 17, a third gear 19 fixed on any one of the support rollers 3, a fixed plate 20 mounted on the top of the base 1, a fourth gear 21 rotatably mounted on the fixed plate 20 via a first transmission shaft, a fifth gear 22 rotatably mounted on the support frame 2 via a second transmission shaft, a sixth gear 23 fixed on the support shaft, and a rubber belt 25 disposed between the first transmission shaft and the output shaft of the first motor 17 for transmission. The fifth gear 22 and the sixth gear 23 mesh for transmission. The fixed plate 20 is provided with two transmission connectors 24, which are respectively used to adjust the transmission connection state between the first transmission shaft and the support shaft, and between the output shaft of the first motor 17 and the support roller 3.

[0026] In this embodiment, after the first motor 17 starts, its output shaft begins to rotate, and the second gear 18 on the output shaft rotates accordingly. The second gear 18 establishes a transmission connection with the third gear 19 through the transmission connector 24. The third gear 19 is fixed on the support roller 3, thereby driving the support roller 3 to rotate. The support roller 3 drives the conveyor belt 4 to rotate, realizing the conveying of paper and support rod 6. At the same time, the output shaft of the first motor 17 transmits power to the first drive shaft through the rubber belt 25. The first drive shaft rotates on the fixed plate 20 and drives the fourth gear 21 to rotate. The fourth gear 21 transmits power through the transmission connector 24. The support shaft rotates, driving the sixth gear 23 on it to rotate. The sixth gear 23 and the fifth gear 22 are meshed. The fifth gear 22 rotates on the support frame 2 through the second transmission shaft, thereby transmitting power to the first gear 9 on the support shaft, driving the rack 8 to slide to complete the supply of the spare rod 11. When it is necessary to control the operation of the conveyor belt 4 or the action of the rod changing structure separately, the transmission connection between the first transmission shaft and the support shaft and between the output shaft of the first motor 17 and the support roller 3 can be disconnected or connected by adjusting the two transmission connecting parts 24 on the fixed plate 20, so as to realize the independent start and stop control of each actuator. By using a single first motor 17 to simultaneously drive the conveyor belt 4 and the rod changing structure, the number of drive sources is reduced, thus lowering the overall energy consumption and manufacturing cost of the equipment. By setting up a transmission connector 24, the operator can flexibly control the working state of the conveyor belt 4 and the rod changing structure according to actual production needs. When only paper needs to be conveyed and rod changing is not required, the transmission connection on the support shaft side can be disconnected to avoid unnecessary idling losses, and vice versa, thereby improving the flexibility and energy-saving effect of the equipment operation.

[0027] In a further preferred embodiment of the present invention, the transmission connector 24 includes a second electric telescopic rod 26 fixed on the fixed plate 20, a support plate 27 mounted on the output rod of the second electric telescopic rod 26, and a transmission gear 28 rotatably mounted on the support plate 27. Any one of the transmission gears 28 simultaneously meshes with the second gear 18 and the third gear 19 to transmit power to the support roller 3, and the other transmission gear 28 simultaneously meshes with the fourth gear 21 and the fifth gear 22 to transmit power to the support shaft.

[0028] In this embodiment, when it is necessary to connect the transmission between the output shaft of the first motor 17 and the support roller 3, the corresponding second electric telescopic rod 26 is activated and extended, pushing the support plate 27 to move towards the gap between the second gear 18 and the third gear 19. The transmission gear 28 on the support plate 27 then enters the meshing position, simultaneously meshing with the second gear 18 and the third gear 19. The power from the output shaft of the first motor 17 is transmitted through the second gear 18 to the transmission gear 28, and then from the transmission gear 28 to the third gear 19, ultimately driving the support roller 3 to rotate. When the transmission between the fourth gear 21 and the fifth gear 22 is engaged, another second electric telescopic rod 26 extends, pushing its corresponding support plate 27 to move, so that the transmission gear 28 on the support plate 27 simultaneously meshes with the fourth gear 21 and the fifth gear 22. Power is transmitted from the fourth gear 21 to the fifth gear 22 through the transmission gear 28, thereby driving the support shaft to rotate. When it is necessary to disconnect a certain transmission path, the corresponding second electric telescopic rod 26 retracts, driving the support plate 27 and the transmission gear 28 out of the meshing position. The transmission gear 28 disengages from the gear pair, and the power transmission is interrupted. By setting the second electric telescopic rod 26 to drive the support plate 27 to drive the transmission gear 28 to achieve the switching of engagement and disengagement, the engagement and disengagement process can be remotely controlled by electrical signals. By setting the transmission gear 28 as an intermediate transition gear to mesh with the two gears at the same time, the power bridging transmission is achieved without changing the transmission direction.

[0029] In a further preferred embodiment of the present invention, the protective cover 7 is provided with a drying structure 31 for assisting in drying ink. The drying structure 31 includes a fan box 33 fixed to the top of the protective cover 7, an exhaust pipe 34 installed at the exhaust end of the fan box 33, and a diversion box 35 installed inside the protective cover 7. The diversion box 35 is connected to the exhaust pipe 34. The diversion box 35 is provided with a plurality of guide plates for guiding the flow of gas, and the bottom of the diversion box 35 is provided with an exhaust port.

[0030] In this embodiment, after the fan box 33 starts to operate, it generates a continuous airflow. The airflow enters the exhaust pipe 34 from the exhaust end of the fan box 33 and is transported downward along the exhaust pipe 34 to the distribution box 35 installed inside the protective cover 7. After entering the distribution box 35, the airflow is guided and distributed by multiple guide plates inside and is evenly dispersed to various areas of the distribution box 35. Finally, it is blown downward from the exhaust port at the bottom of the distribution box 35. The airflow forms a top-down wind field in the closed space of the protective cover 7, covering the surface of the printed paper carried on the conveyor belt 4, accelerating the evaporation of solvent in the ink on the paper surface, and promoting the rapid drying and curing of the ink. By setting up the air-drying structure 31, the printed paper can be subjected to forced air-drying during the conveying process, which shortens the natural drying time of the ink. The ink on the surface of the paper is basically cured before it reaches the collection area, which fundamentally reduces the risk of image transfer and surface damage caused by the ink not being dry when the paper is stacked. By setting a guide plate in the diversion box 35, the airflow is uniformly treated before being discharged, ensuring that the wind speed in each position in the protective cover 7 is consistent. This avoids the paper being blown away or wrinkled due to excessive local wind force, and also avoids the problem of insufficient ink drying in some areas due to uneven wind force.

[0031] In a further preferred embodiment of the present invention, an auxiliary detection structure 32 is detachably installed on the protective cover 7. The auxiliary detection structure 32 includes a blocking plate 36 detachably installed on the top of the protective cover 7, a third electric telescopic rod 37 fixed on the blocking plate 36, an adjusting frame 38 installed on the output rod of the third electric telescopic rod 37, a pressure roller 39 rotatably installed in the adjusting frame 38, the pressure roller 39 contacting the surface of the printed paper to blur undried ink, and a second motor 42 fixed on the adjusting frame 38 to drive the pressure roller 39 to rotate. A second visual inspection device 30 is fixed on the protective cover 7 for acquiring and analyzing image information of printed graphics on the paper surface. The second visual inspection device 30 is used to determine the integrity of the graphics on the paper surface.

[0032] In this embodiment, when it is necessary to detect the drying state of the ink on the surface of the printed paper, the blocking plate 36 is first installed on the top of the protective cover 7, the third electric telescopic rod 37 is started and extends downward, pushing the adjusting frame 38 to descend vertically, so that the pressure roller 39, which is rotatably installed in the adjusting frame 38, gradually approaches and contacts the surface of the printed paper carried on the conveyor belt 4. The second motor 42 is started to drive the pressure roller 39 to rotate. The pressure roller 39 rolls and applies pressure on the paper surface. If the ink on the paper surface is not sufficiently dried, the rolling of the pressure roller 39 will blur or scratch the uncured ink, causing visible damage marks to the graphics on the paper surface. The second visual inspection device 30 fixed on the protective cover 7 then acquires images of the paper surface, obtains image information of the printed graphics on the paper surface and performs analysis and processing to determine the integrity of the graphics. If blurring, defects or transfer marks are detected in the graphics, it is determined that the ink on the paper is not sufficiently dried. By actively contacting the paper surface with the pressure roller 39 and applying rolling pressure, the friction and contact conditions that the paper may suffer during subsequent stacking, handling and use are simulated. Compared with simply relying on visual observation of the ink surface state, it can more realistically assess the actual dryness and adhesion of the ink, effectively avoiding subsequent quality risks caused by the ink surface appearing dry but not fully cured inside. By setting up a second visual inspection device 30 to perform automated image analysis on the paper surface after being rolled by the pressure roller 39, the consistency and reliability of the inspection are improved.

[0033] In a further preferred embodiment of the present invention, a support block 40 is installed on the top inner wall of the adjusting frame 38, and a sponge pad 41 is fixed at the bottom of the support block 40 to contact the pressure roller 39 and assist in cleaning the pressure roller 39. A connecting rod 43 is fixed on the support block 40, and a support rod 44 is detachably installed on the connecting rod 43 by bolts. A scraper 45 is fixed on the support rod 44. The scraper 45 is used to scrape off the ink adhering to the surface of the pressure roller 39 to reduce the cleaning pressure on the sponge pad 41.

[0034] In this embodiment, the pressure roller 39 rotates continuously under the drive of the second motor 42. When ink adhering to the surface of the pressure roller 39 from the paper adheres to it, the scraper 45 remains in contact with the surface of the pressure roller 39. During the rotation of the pressure roller 39, the scraper 45 scrapes the surface of the pressure roller 39, peeling off most of the ink adhering to the surface of the pressure roller 39. After the pressure roller 39 is initially cleaned by the scraper 45, it continues to rotate. The small amount of ink remaining on its surface then comes into contact with the sponge pad 41 fixed at the bottom of the support block 40. The sponge pad 41 performs a secondary wiping and cleaning of the surface of the pressure roller 39, absorbing and carrying away the residual ink that the scraper 45 failed to completely remove, so that the surface of the pressure roller 39 is restored to a clean state. When the scraper 45 needs to be replaced due to wear from long-term use, or when the sponge pad 41 is dirty, the bolt connection between the connecting rod 43 and the support rod 44 can be disassembled, and the support rod 44 together with the scraper 45 can be removed for replacement or maintenance. By setting up a two-stage cleaning system with the scraper 45 and the sponge pad 41 working together, the scraper 45 undertakes the main task of ink scraping, peeling off the ink adhering to a large area on the surface of the pressure roller 39 first. The sponge pad 41 is only responsible for handling the residual trace amount of ink, which reduces the cleaning load of the sponge pad 41, extends the service life of the sponge pad 41, and reduces the replacement frequency and maintenance cost of the sponge pad 41. The support rod 44 is detachably connected to the connecting rod 43 by bolts, which reduces the difficulty of maintenance and downtime.

[0035] In a further preferred embodiment of the present invention, a guide groove 52 is provided on the inner wall of the support frame 2, and a guide block is slidably installed in the guide groove 52. The guide block is connected to the rack 8 and is used to limit the movement path of the rack 8.

[0036] In this embodiment, when the rack 8 slides horizontally on the support frame 2, the guide block connected to the rack 8 slides synchronously in the guide groove 52 on the inner wall of the support frame 2. The guide groove 52 provides a closed sliding channel for the guide block. Under the constraint of the guide groove 52, the guide block can only move in a straight line along the extension direction of the guide groove 52, thus strictly limiting the movement path of the rack 8 to the trajectory specified by the guide groove 52. By setting the guide groove 52 to cooperate with the guide block, the rack 8 is provided with a guiding constraint, which effectively prevents the rack 8 from deviating from the predetermined trajectory due to uneven force or vibration during the sliding process. This ensures the linearity and stability of the rack 8's movement and avoids the problem of poor meshing or even tooth loss between the rack 8 and the first gear 9 due to rack 8 offset.

[0037] In a further preferred embodiment of the present invention, protrusions 53 are provided on both inner walls of the first card plate 5, and recesses for accommodating the protrusions 53 are provided on the support rod 6 and the spare rod 11. The protrusions 53 cooperate with the recesses to prevent the support rod 6 and the spare rod 11 from falling out of the first card plate 5. A limiting plate 16 that contacts the conveyor belt 4 is fixed on the inner wall of the support frame 2 to assist in supporting the conveyor belt 4.

[0038] In this embodiment, when the support rod 6 and the spare rod 11 are installed on the first clamping plate 5, the rod is inserted from the open end of the first clamping plate 5. After the rod is fully in place, the protrusions 53 on the inner walls of both sides of the first clamping plate 5 are respectively embedded into the corresponding recesses on the support rod 6 or the spare rod 11. The protrusions 53 and the recesses form a locking relationship. The rod is constrained by the protrusions 53 in both the vertical and horizontal directions and cannot slide out or fall off from the first clamping plate 5 on its own. When the rod is installed or removed, the conveyor belt 4 is pulled and is limited by the limiting plate 16. The engagement between the protrusion 53 and the notch provides reliable mechanical protection against detachment for the support rod 6 and the spare rod 11, preventing the rod from accidentally falling off during operation or changes in posture. This avoids equipment jamming or paper scattering caused by the rod falling off. The limit plate 16 prevents the conveyor belt 4 from deforming when the rod is installed or removed.

[0039] To further improve the performance of this device, in addition to the above-mentioned solutions, this solution also includes the following embodiments: In another embodiment of the present invention, a conveyor belt structure 47 for conveying paper is provided on one side of the conveyor belt 4. An opening is provided on the support frame 2. The conveyor belt structure 47 passes through the support frame 2 through the opening. A guide plate 46 for guiding paper discharge is installed on the inner wall of the support frame 2. A collection box 48 for collecting paper is placed on the conveyor belt structure 47. The collection box 48 is provided with two collection compartments for collecting intact printed paper and ink-damaged paper, respectively.

[0040] In this embodiment, after the printing paper is conveyed and the ink is dried on the conveyor belt 4, it moves with the conveyor belt 4 to the opening position of the support frame 2. The guide plate 46 on the inner wall of the support frame 2 guides the paper, so that the paper slides off the conveyor belt 4 along the inclined surface of the guide plate 46 and falls into the collection box 48. The conveyor belt structure 47 continues to operate, driving the collection box 48 to move along the conveying direction. When the collection box 48 reaches the designated position, it stops. According to the detection result of the integrity of the paper surface graphics by the second vision inspection device 30, the printed paper is guided to the corresponding complete paper collection bin in the collection box 48, while the paper with ink damage is guided to another collection bin, realizing the classification and collection of qualified and unqualified products. By setting up the conveyor belt structure 47, the transfer process of paper from inside the support frame 2 to the external collection area is smooth and continuous, avoiding the accumulation or jamming of paper at the discharge port. By setting up the guide plate 46, the discharge direction of the paper is guided so that the paper can fall into the collection box 48, reducing the risk of paper scattering or deviating due to free fall. By setting up two independent collection bins in the collection box 48, the printed paper can be physically separated from the paper with damaged ink, preventing defective products from being mixed with qualified products, eliminating the need for subsequent manual sorting, and reducing labor intensity.

[0041] In another embodiment of the present invention, a protective plate 49 for preventing paper from flying out of the collection range is fixed on the protective cover 7. Two split-opening centering plates 50 are hinged inside the protective cover 7. Two fourth electric telescopic rods 51 are hinged inside the protective cover 7. The output rods of the two fourth electric telescopic rods 51 are respectively hinged to the two centering plates 50 to adjust the opening angle of the two centering plates 50, so as to assist the paper of different sizes to fall in the center above the support rod 6.

[0042] In this embodiment, after the printing paper is output from the offset printing machine outlet, it enters the protective cover 7. The protective plate 49 fixed on the protective cover 7 forms a blocking limit for the paper, preventing the paper from flying out of the collection range under the action of airflow or inertia. As the paper falls down to the support rod 6, it passes between two hinged centering plates 50. The two centering plates 50 apply guiding forces to both sides of the paper, gradually guiding the paper to the center position directly above the support rod 6, so that the paper falls in the center and lands smoothly on the support rod 6. When different sizes of paper need to be processed, the fourth electric telescopic rod 51 is activated, and its output rod extends or retracts. Through the hinge point with the centering plate 50, it pushes or pulls the centering plate 50 to rotate around the hinge axis, thereby changing the opening angle between the two centering plates 50, so that the distance between the two plates matches the width of the current paper. The paper falls along the center line direction under the clamping and guidance of the centering plate 50, completing the centering positioning. By setting up the protective plate 49, the paper is effectively prevented from deviating from the predetermined trajectory or even flying out of the collection range due to airflow disturbance or motion inertia inside the protective cover 7. By setting up two centering plates 50, the paper can be guided in both directions symmetrically during the falling process, so that the paper always falls onto the support rod 6 in a centered state, avoiding the problem of unstable support or partial suspension caused by paper deviation. By setting up the fourth electric telescopic rod 51, the opening angle of the centering plate 50 can be adjusted, so that this device can adapt to the processing needs of paper with different width specifications.

[0043] In summary, compared with related technologies, this device, by setting support rods 6 to support each sheet of printed paper at intervals, avoids image and text wear and transfer contamination caused by paper stacking before the ink is dry. It accelerates ink curing by setting up a drying structure 31, and automatically identifies dirt on the surface of the support rods 6 using a first visual inspection device 29. Combined with a rod-changing structure, it automatically replaces contaminated support rods 6, avoiding secondary contamination. The auxiliary inspection structure 32 simulates friction conditions using pressure rollers 39 and, in conjunction with a second visual inspection device 30, assesses the degree of ink drying and image integrity. Combined with a conveyor belt structure 47 and a collection box 48, it automatically classifies and collects qualified and unqualified products. This integrated operation of pollution prevention, automatic detection, intelligent rod changing, and classified collection during notebook printing improves printing quality and production efficiency.

[0044] It is worth noting that the circuits, electronic components, and modules involved in this invention are all existing technologies (the first electric telescopic pole 12 can be a Linac LA36, the air pump 14 can be a Hailinke HSK-250, the first motor 17 can be a Siemens 1LE0001 series, the second electric telescopic pole 26 can be a TiMOTION TL25, the fan box 33 can be a Detong DT-4-72, the third electric telescopic pole 37 can be a Linac LA28, the second motor 42 can be a Huichuan IS620N, the fourth electric telescopic pole 51 can be a TiMOTION TL35, the first visual inspection device 29 is used to detect dirt on the surface of the support pole 6, its industrial camera can be a Hikvision MV-CS060-10GC, and the industrial lens can be a Computar). The M1214-SW2 light source can be an OPTE OPT-RI10030-W, and the image processor can be an Advantech MIC-770. The second vision inspection device 30 is used to detect the integrity of printed images on the paper surface. Its industrial camera can be a Basler ACA2040-90GC, and its industrial lens can be a Computar V50-28. The light source can be an OPTE OPT-LI10030-W, and the image processor can be an Advantech MIC-770. This can be fully implemented by those skilled in the art, and there is no need to elaborate. The content protected by this invention does not involve the improvement of software and methods. This solution also includes an electrical control cabinet, which is installed on the equipment. During use, the operation of each electrical device can be started separately through the electrical control cabinet. The power connection method of each electrical device is an existing mature technology, which is well known to those skilled in the art, and will not be described in detail here.

[0045] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of the present invention. These technical solutions also fall within the scope of protection of the present invention.

Claims

1. A material collection device for offset printing machines used in notebook computer processing, characterized in that, include: Base; A support frame fixed to the top of the base; Two support rollers are rotatably mounted within the support frame; A conveyor belt is sleeved outside the two support rollers. The conveyor belts are arranged in groups. A plurality of support rods for supporting the printed material are provided between the two conveyor belts. A first clamping plate for supporting the support rods is fixed on each of the two conveyor belts. A protective cover fixed to the support frame and fitted over the support roller, the first clamping plate and the support rod for wind protection; A rod replacement structure is provided on the base for replacing the contaminated support rod; A first visual inspection device installed on the base is used to acquire and analyze image information of the support rod, and to determine whether the support rod is dirty.

2. The offset printing machine output collection device for notebook computer processing as described in claim 1, characterized in that, The rod-changing structure includes a rack slidably mounted on the support frame, a first gear providing a support shaft rotatably mounted inside the support frame, the first gear meshing with the rack, multiple second clamping plates fixed on the rack, multiple spare rods respectively clamped on the multiple second clamping plates, a first electric telescopic rod fixed on the base, an adjusting plate mounted on the output rod of the first electric telescopic rod, an air pump mounted on the base, and a connecting pipe fixed between the adjusting plate and the air pump's inlet end. The adjusting plate has an air passage communicating with the connecting pipe, and the adjusting plate has multiple suction ports communicating with the air passage.

3. The offset printing machine output collection device for notebook computer processing as described in claim 2, characterized in that, The top of the adjusting plate is equipped with a sealing gasket to prevent air leakage, so as to prevent the rod from falling off when installing or removing the support rod and the spare rod. The connecting pipe is equipped with a three-way valve to adjust the negative pressure state in the air passage to realize the picking and placing of the rod. A transmission structure is provided between the base and the support frame to drive the support roller and the support shaft to rotate.

4. The offset printing machine output collection device for notebook computer processing as described in claim 3, characterized in that, The transmission structure includes a first motor fixed on the base, a second gear mounted on the output shaft of the first motor, a third gear fixed on any one of the support rollers, a fixed plate mounted on the top of the base, a fourth gear rotatably mounted on the fixed plate via a first transmission shaft, a fifth gear rotatably mounted on the support frame via a second transmission shaft, a sixth gear fixed on the support shaft, and a rubber belt disposed between the first transmission shaft and the output shaft of the first motor for transmission. The fifth gear and the sixth gear mesh for transmission. The fixed plate is provided with two transmission connectors for adjusting the transmission connection state between the first transmission shaft and the support shaft, and between the output shaft of the first motor and the support rollers, respectively.

5. The offset printing machine output collection device for notebook computer processing as described in claim 4, characterized in that, The transmission connector includes a second electric telescopic rod fixed to the fixed plate, a support plate mounted on the output rod of the second electric telescopic rod, and a transmission gear rotatably mounted on the support plate. One of the transmission gears simultaneously meshes with the second gear and the third gear to transmit power to the support roller, and the other transmission gear simultaneously meshes with the fourth gear and the fifth gear to transmit power to the support shaft.

6. The offset printing machine output collection device for notebook computer processing as described in claim 1, characterized in that, The protective cover is provided with an air-drying structure for assisting in drying ink. The air-drying structure includes a fan box fixed to the top of the protective cover, an exhaust pipe installed at the exhaust end of the fan box, and a distribution box installed inside the protective cover. The distribution box is connected to the exhaust pipe. The distribution box is provided with multiple guide plates for guiding the flow of gas. The bottom of the distribution box is provided with an exhaust port.

7. The offset printing machine output collection device for notebook computer processing as described in claim 1, characterized in that, An auxiliary detection structure is detachably installed on the protective cover. The auxiliary detection structure includes a blocking plate detachably installed on the top of the protective cover, a third electric telescopic rod fixed on the blocking plate, an adjusting frame installed on the output rod of the third electric telescopic rod, a pressure roller rotatably installed in the adjusting frame, the pressure roller contacting the surface of the printed paper to blur undried ink, and a second motor fixed on the adjusting frame to drive the pressure roller to rotate. A second visual inspection device is fixed on the protective cover to acquire and analyze image information of the printed graphics on the paper surface. The second visual inspection device is used to determine the integrity of the graphics on the paper surface.

8. The offset printing machine output collection device for notebook computer processing as described in claim 7, characterized in that, A support block is installed on the top inner wall of the adjusting frame. A sponge pad is fixed at the bottom of the support block to contact the pressure roller and assist in cleaning the pressure roller. A connecting rod is fixed on the support block. A support rod is detachably installed on the connecting rod by bolts. A scraper is fixed on the support rod. The scraper is used to scrape off the ink adhering to the surface of the pressure roller to reduce the cleaning pressure on the sponge pad.

9. The offset printing machine output collection device for notebook computer processing as described in claim 2, characterized in that, The inner wall of the support frame is provided with a guide groove, and a guide block is slidably installed in the guide groove. The guide block is connected to the rack and is used to limit the movement path of the rack.

10. The offset printing machine output collection device for notebook computer processing as described in claim 2, characterized in that, The first card plate has protruding strips on both inner walls. The support rod and the spare rod are provided with recesses for accommodating the protruding strips. The protruding strips cooperate with the recesses to prevent the support rod and the spare rod from falling out of the first card plate. The inner wall of the support frame is fixed with a limiting plate that contacts the conveyor belt to assist in supporting the conveyor belt.

Images