Synchronous control device and control method for a printing press and an impression-perforation unit

Abstract

The application discloses a printing machine and indentation punching unit synchronous control device and control method, which comprises a feeding and traction unit, a printing unit, a post-printing traction unit, a synchronous control unit, an indentation punching unit and a collecting and traction unit arranged in sequence according to the printing paper conveying direction, a printing register electric eye is arranged between the printing unit and the post-printing traction unit, an indentation punching register electric eye is arranged between the synchronous control unit and the indentation punching unit, the printing register electric eye and the indentation punching register electric eye are connected with a register control system, and the printing unit, the post-printing traction unit, the synchronous control unit and the indentation punching unit are connected with a servo control system. The application solves the problem that the printing unit and the indentation punching unit are not synchronized, which leads to too large tension between the indentation punching unit and the last color printing unit.

Description

Technical Field

[0001] This invention belongs to the field of printing machinery and control technology, specifically relating to a synchronous control device for a printing press and an indentation and perforation unit, and also to a synchronous control method for a printing press and an indentation and perforation unit. Background Technology

[0002] The production of aseptic milk packaging involves several stages, including paper preparation, printing and creasing / perforation, casting and lamination, slitting, forming, and packaging. Printing and creasing / perforation are crucial stages in aseptic packaging production, directly impacting the packaging's appearance and quality. The equipment responsible for printing and creasing / perforation is an inline system consisting of a feeding unit, a feeding traction unit, a printing unit, a creasing / perforation unit, a receiving traction unit, and a receiving unit. However, this production process presents several technical challenges: the incremental increase (0.02mm) between the circumference of the printing unit's printing roller and the creasing roller's circumference in the creasing / perforation unit is difficult to control, causing asynchrony between the printing and creasing / perforation units. This results in excessive tension between the creasing / perforation unit and the final color printing unit, significantly reducing their lifespan. Furthermore, it affects the registration accuracy of the final color printing (>0.15mm) and the creasing / perforation registration accuracy (>0.25mm). Summary of the Invention

[0003] The purpose of this invention is to provide a synchronous control device for printing press and creasing / drilling unit, which solves the problem of excessive tension between the creasing / drilling unit and the last color printing unit due to asynchrony between the printing unit and the creasing / drilling unit.

[0004] Another object of the present invention is to provide a method for synchronous control of a printing press and an indentation / perforation unit.

[0005] The technical solution adopted in this invention is a synchronous control device for a printing press and a creasing and perforating unit, including a registration control system connected to a servo control system. The device comprises a feeding and traction unit, a printing unit, a post-printing traction unit, a synchronous control unit, a creasing and perforating unit, and a receiving and traction unit arranged sequentially according to the paper feeding direction. A printing registration photoelectric sensor is installed between the printing unit and the post-printing traction unit. A creasing and perforating color registration photoelectric sensor is installed between the synchronous control unit and the creasing and perforating unit. Both the printing registration photoelectric sensor and the creasing and perforating color registration photoelectric sensor are connected to the registration control system. The printing unit, the post-printing traction unit, the synchronous control unit, and the creasing and perforating unit are all connected to the servo control system.

[0006] The invention is further characterized in that,

[0007] The unwinding and traction unit includes an unwinding traction roller, an unwinding traction pressure roller is provided on the side of the unwinding traction roller closer to the printing unit, and an unwinding floating roller is provided on the side of the unwinding traction roller farther from the printing unit. The unwinding traction roller and the unwinding traction pressure roller are tangent.

[0008] The printing unit includes a printing pressure roller, a printing plate roller is arranged below the printing pressure roller, the printing pressure roller and the printing plate roller are tangent, the printing plate roller is connected to a printing motor, the printing motor is connected to a printing driver, the printing driver is connected to a servo control system, and a printing registration photoelectric sensor is arranged on the side of the printing pressure roller near the post-printing traction unit, the printing registration photoelectric sensor is connected to the registration control system.

[0009] Post-printing traction includes a post-printing traction roller, a post-printing traction pressure roller is provided on the side of the post-printing traction roller closer to the synchronization control unit, the post-printing traction roller and the post-printing traction pressure roller are tangent, a post-printing traction tension sensor is provided on the side of the post-printing traction roller away from the synchronization control unit, the post-printing traction roller is connected to a post-printing traction motor, the post-printing traction motor and the post-printing traction tension sensor are both connected to a post-printing traction driver, and the post-printing traction driver is connected to a servo control system.

[0010] like Figure 2 As shown, the synchronous control unit includes a floating roller front guide roller, a floating roller rear guide roller on the side of the floating roller front guide roller away from the post-printing traction unit, a synchronous floating roller between the floating roller front guide roller and the floating roller rear guide roller, the synchronous floating roller being set at a greater height than the floating roller front guide roller, the floating roller front guide roller and the floating roller rear guide roller being symmetrically arranged along the synchronous floating roller, one end of the roller shaft of the synchronous floating roller being connected to the extension end of the floating roller tension cylinder, the other end of the roller shaft of the synchronous floating roller being fitted with a synchronous gear, the synchronous gear meshing with a synchronous rack, a floating roller position detection linear potentiometer being set on the roller shaft of the synchronous floating roller, a synchronous control unit traction pressure roller on the side of the floating roller rear guide roller near the indentation and punching unit, a synchronous control unit traction roller below the synchronous control unit traction pressure roller being set, the synchronous control unit traction pressure roller being tangent to the synchronous control unit traction roller, a synchronous control unit traction roller being connected to a synchronous traction motor, the synchronous traction motor and the floating roller position detection linear potentiometer being both connected to a synchronous traction driver, and the synchronous traction driver being connected to a servo control system.

[0011] The embossing and punching unit includes a set of embossing rollers and a set of punching rollers on the side of the set of embossing rollers away from the synchronous control unit. One of the embossing rollers is connected to an embossing roller motor, and the embossing roller motor is connected to an embossing roller driver. One of the punching rollers is connected to a punching roller motor, and the punching roller motor is connected to a punching roller driver. Both the embossing roller driver and the punching roller driver are connected to the servo control system.

[0012] The material receiving and traction unit includes a receiving floating roller, a receiving traction roller is provided on the side of the receiving floating roller away from the indentation and punching unit, and a receiving traction pressure roller is provided on the side of the receiving traction roller away from the receiving floating roller. The receiving traction roller and the receiving traction pressure roller are tangent.

[0013] Another technical solution adopted in this invention is a synchronous control method for a printing press and an indentation / perforation unit, which uses the aforementioned synchronous control device for a printing press and an indentation / perforation unit and is implemented according to the following steps:

[0014] Step 1: Power on the machine, evenly distribute the ink, and engage the printing rollers.

[0015] Step 2, adjust the position of the synchronous floating roller;

[0016] Step 3: Begin printing on the printing paper.

[0017] The invention is further characterized in that,

[0018] The specific process of step 2 is as follows: The printing unit, post-printing traction unit, synchronous control unit, and creasing and punching unit are controlled to operate synchronously by the servo control system. At the same time, the floating roller tension cylinder is activated, and the floating roller position detection linear potentiometer detects the current position of the synchronous floating roller and transmits the position information to the servo control system. The servo control system compares the received position information with the set position information to obtain the position deviation. Based on the position deviation, the servo control system controls the running speed of the synchronous control unit's traction roller, creasing roller, and punching roller through the synchronous traction driver, creasing roller driver, and punching roller driver, respectively, so that the synchronous floating roller is in the middle position.

[0019] Step 3 involves two steps:

[0020] In the first path, the floating roller position detection linear potentiometer detects the position information of the synchronous floating roller in real time and transmits the position information to the servo control system. The servo control system compares the received position information with the set position information to obtain the position deviation. If the position deviation -10mm < θ < 10mm, the running speed of the traction roller, indentation roller, and punching roller of the synchronous control unit remains unchanged. If the position deviation θ > 10mm, the servo control system controls the speed of the synchronous traction motor, indentation roller motor, and punching roller motor respectively by adjusting the electronic gear ratio of the synchronous traction driver, indentation roller driver, and punching roller driver, thereby controlling the speed of the traction roller, indentation roller, and punching roller of the synchronous control unit to adjust in the forward direction. If the position deviation θ < -10mm, the speed of the traction roller, indentation roller, and punching roller of the synchronous control unit is adjusted in the reverse direction.

[0021] In the second stage, the registration control system begins operation. The photoelectric sensor for creasing and perforating detects the printing marks on the paper and transmits this information to the registration control system. The registration control system compares the acquired information with the set information to obtain the synchronization deviation and positional deviation I. This information is then transmitted to the servo control system. If the positional deviation -0.02mm < δ < 0.02mm, the phases of the creasing and perforating rollers remain unchanged. If the positional deviation δ > 0.02mm, the servo control system adjusts the phases of the creasing and perforating roller drivers respectively, and then controls... The embossing roller motor adjusts the phase of the embossing roller and the perforating roller in the forward direction. If the position deviation δ < -0.02mm, the phase of the embossing roller and the perforating roller is adjusted in the reverse direction. If the average synchronization deviation is -0.1mm < η < 0.1mm, the speed of the traction roller in the synchronization control unit remains unchanged. If the average synchronization deviation η > 0.1mm, the servo control system controls the speed of the synchronization traction motor by adjusting the electronic gear ratio of the synchronization traction driver, thereby controlling the speed of the traction roller in the synchronization control unit to adjust in the forward direction. If the average synchronization deviation η < -0.1mm, the speed of the traction roller in the synchronization control unit is adjusted in the reverse direction.

[0022] The beneficial effects of the present invention are: the synchronous control device for printing machine and creasing and punching unit of the present invention ensures the synchronization of printing unit and creasing and punching unit by setting synchronous control unit, effectively controls the tension between creasing and punching unit and last color printing unit, thereby improving the service life of printing unit and creasing and punching unit and printing, creasing and punching accuracy.

[0023] (2) The synchronous control method of the printing machine and the creasing and punching unit of the present invention can adjust the synchronization between the printing unit and the creasing and punching unit of the printing machine by controlling the synchronous traction driver, the creasing roller driver and the punching roller driver, and control the creasing and punching accuracy within ±0.1mm. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the synchronous control device for the printing press and the indentation and punching unit of the present invention;

[0025] Figure 2 This is a structural diagram of the synchronous control unit in the synchronous control device for the printing press and the indentation and punching unit of the present invention;

[0026] Figure 3 This is a control function block diagram of the synchronous control method for the printing press and the indentation and punching unit of the present invention;

[0027] Figure 4 This is a block diagram illustrating the control principle of the synchronous control method for the printing press and the indentation and punching unit of the present invention.

[0028] Figure 5This is a flowchart of the synchronous control method for the printing press and the indentation and punching unit of the present invention.

[0029] In the diagram, 1. Unwinding, 2. Unwinding traction roller, 3. Unwinding traction pressure roller, 4. Unwinding floating roller, 5. Printing pressure roller, 6. Printing plate roller, 7. Printing registration photoelectric sensor, 8. Post-printing traction tension sensor, 9. Post-printing traction roller, 10. Synchronization control unit, 11. Post-printing traction pressure roller, 12. Creasing and perforation color registration photoelectric sensor, 13. Creasing roller, 14. Perforation roller, 15. Rewinding floating roller, 16. Rewinding traction roller, 17. Rewinding traction pressure roller, 18. Rewinding, 19. Printing driver, 20. Printing motor, 21. Post-printing traction driver, 22. Post-printing traction motor, 23. Synchronization traction driver, 24. Synchronization traction motor, 25. Creasing roller driver, 26. Creasing roller motor, 27. Perforation roller driver, 28. Perforation roller motor, 29. Printing paper, 30. Registration control system, 31. Servo control system;

[0030] 101. Synchronous rack, 102. Synchronous gear, 103. Synchronous floating roller, 104. Floating roller position detection linear potentiometer, 105. Floating roller rear guide roller, 106. Floating roller front guide roller, 107. Floating roller tension cylinder, 108. Synchronous control unit traction pressure roller, 109. Synchronous control unit traction roller. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0032] Example 1

[0033] The present invention provides a synchronous control device for the printing press and the indentation / perforation unit, the structure of which is as follows: Figure 1As shown, the system includes a registration control system 30, which is connected to a servo control system 31. The registration control system 30 and servo control system 31 utilize existing technology. The system is arranged sequentially according to the conveying direction of the printing paper 29: a feeding and traction unit, a printing unit, a post-printing traction unit, a synchronization control unit 10, a creasing and punching unit, and a receiving and traction unit. A printing registration photoelectric sensor 7 is installed between the printing unit and the post-printing traction unit. A creasing and punching color registration photoelectric sensor 12 is installed between the synchronization control unit 10 and the creasing and punching unit. The feeding and traction unit pulls the printing paper 29 on the unwound roll 1 for transport. The printing unit performs printing on the printing paper 29. The post-printing traction unit pulls the printed printing paper 29. The synchronization control unit 10 synchronizes the printing unit and the creasing and punching unit. The system operates by using a creasing and perforating unit to creasing and perforate the printed paper 29, and a take-up and traction unit to traction and rewind the creasing and perforated printed paper 29. The printing registration photoelectric sensor 7 and the creasing and perforation color registration photoelectric sensor 12 are all connected to the registration control system 30. The printing unit, post-printing traction unit, synchronization control unit 10, and creasing and perforation unit are all connected to the servo control system 31. The registration control system 30 acquires the data transmitted by the printing registration photoelectric sensor 7 and the creasing and perforation color registration photoelectric sensor 12, compares it with the set dataset, obtains the synchronization deviation and position deviation I, and transmits the synchronization deviation and position deviation I signals to the servo control system 31. The servo control system 31 controls the speed and phase of the synchronization control unit 10 and the creasing and perforation unit according to the received synchronization deviation and position deviation I.

[0034] Example 2

[0035] Based on Embodiment 1, the unwinding and traction unit includes an unwinding traction roller 2. An unwinding traction pressure roller 3 is provided on the side of the unwinding traction roller 2 closest to the printing unit, and an unwinding floating roller 4 is provided on the side of the unwinding traction roller 2 furthest from the printing unit. The unwinding floating roller 4 is used for unwinding traction tension control. The unwinding traction roller 2 is tangent to the unwinding traction pressure roller 3. A guide roller I is provided on each side of the unwinding floating roller 4. The two guide rollers I are symmetrically arranged along the unwinding floating roller 4, and the height of the two guide rollers I is greater than the height of the unwinding floating roller 4. An unwinding 1 is provided below the unwinding traction roller 2 and the unwinding traction pressure roller 3. The printed paper 29 on the unwinding 1 passes between the unwinding traction roller 2 and the unwinding traction pressure roller 3 and then passes sequentially around the first guide roller I, the unwinding floating roller 4, and the second guide roller I before entering the printing unit.

[0036] The printing unit includes a printing pressure roller 5, a printing plate roller 6 positioned below the printing pressure roller 5, and the printing pressure roller 5 and the printing plate roller 6 being tangent. A first guide roller II is positioned near the feeding and traction unit on the printing pressure roller 5, and a second guide roller II is positioned away from the feeding and traction unit on the printing pressure roller 5. The first and second guide rollers II are symmetrically arranged along the printing pressure roller 5. A third guide roller II is positioned between the first and second guide rollers II. A fourth guide roller II is positioned above the second guide roller II. The printing plate roller 6 is connected to a printing motor 20. The printing motor 20 is connected to... A printing driver 19 is connected to a servo control system 31. The servo control system 31 controls the printing motor 20 to rotate through the printing driver 19. The printing motor 20 drives the printing plate roller 6 to rotate. A printing registration photoelectric eye 7 is provided on the side of the printing pressure roller 5 near the post-printing traction unit. The printing registration photoelectric eye 7 is connected to the registration control system 30. The printing paper 29 passes through the third guide roller II and the first guide roller II in sequence and enters the space between the printing pressure roller 5 and the printing plate roller 6 for printing. Then it passes through the second guide roller II and the fourth guide roller II in sequence and enters the post-printing traction unit.

[0037] The post-printing traction includes a post-printing traction roller 9. A post-printing traction pressure roller 11 is arranged on the side of the post-printing traction roller 9 closest to the synchronization control unit. The post-printing traction roller 9 and the post-printing traction pressure roller 11 are tangent. A post-printing traction tension sensor 8 is arranged on the side of the post-printing traction tension sensor 9 furthest from the synchronization control unit. A guide roller III is arranged on each side of the post-printing traction tension sensor 8. The two guide rollers III are symmetrically arranged along the post-printing traction tension sensor 8. A guide roller III is arranged below the post-printing traction roller 9. The post-printing traction roller 9 is connected to a post-printing traction motor 22. The post-printing traction motor 22 and the post-printing traction tension sensor 8 are both connected to a post-printing traction driver 21. The post-printing traction driver 21 is connected to a servo control system 31. The servo control system 31 controls the rotation of the post-printing traction motor 22 through the post-printing traction driver 21. The post-printing traction motor 22 drives the post-printing traction roller 9 to rotate. The printing paper 29 passes by the first guide roller III, the post-printing traction tension sensor 8, and the second guide roller III in sequence before entering between the post-printing traction roller 9 and the post-printing traction pressure roller 11. After passing by the last guide roller III, it enters the synchronization control unit 10.

[0038] The synchronization control unit includes a floating roller front guide roller 106. A floating roller rear guide roller 105 is located on the side of the floating roller front guide roller 106 away from the post-printing traction unit. A synchronous floating roller 103 is located between the floating roller front guide roller 106 and the floating roller rear guide roller 105. The height of the synchronous floating roller 103 is greater than that of the floating roller front guide roller 106. The floating roller front guide roller 106 and the floating roller rear guide roller 105 are symmetrically arranged along the synchronous floating roller 103. One end of the roller shaft of the synchronous floating roller 103 is connected to the telescopic end of the floating roller tension cylinder 107. Specifically, a sleeve is fitted onto one end of the roller shaft of the synchronous floating roller 103, and the bottom of the sleeve is connected to the floating roller tension cylinder 107. The telescopic end is connected, and the roller shaft of the synchronous floating roller 103 can rotate within the sleeve, thus ensuring that the telescopic process of the floating roller tension cylinder 107 does not hinder the rotation of the synchronous floating roller 103. The rear guide roller 105 and the front guide roller 106 of the floating roller ensure that the paper 29 moves along the same path as the synchronous floating roller 103. The other end of the roller shaft of the synchronous floating roller 103 is fitted with a synchronous gear 102, which meshes with a synchronous rack 101. The synchronous rack 101 and the synchronous gear 102 ensure that the transmission side and the operating side of the synchronous floating roller 103 are synchronously displaced under the action of the floating roller tension cylinder 107. The roller shaft of the synchronous floating roller 103 is equipped with a synchronous gear 102. A stop is provided at the end of 2, and a baffle is provided on the side of the synchronous rack 101. The stop is located between the synchronous rack 101 and the baffle, thereby ensuring that the synchronous gear 102 is always meshed with the synchronous rack 101. A floating roller position detection linear potentiometer 104 is provided on the roller shaft of the synchronous floating roller 103. The floating roller position detection linear potentiometer 104 is used to obtain the position information of the synchronous floating roller 103. A synchronous control unit traction roller 108 is provided on the side of the floating roller rear guide roller 105 near the indentation and punching unit. A synchronous control unit traction roller 109 is provided below the synchronous control unit traction roller 108. The synchronous control unit traction roller 108 and the synchronous control unit traction roller 109 are connected. 9. The synchronous control unit traction roller 109 is connected to the synchronous traction motor 24. The synchronous traction motor 24 and the floating roller position detection linear potentiometer 104 are both connected to the synchronous traction driver 23. The synchronous traction driver 23 is connected to the servo control system 31. The servo control system 31 controls the synchronous traction motor 24 to rotate through the synchronous traction driver 23. The synchronous traction motor 24 drives the synchronous control unit traction roller 109 to rotate. The printing paper 29 passes through the floating roller front guide roller 106, the synchronous floating roller 103, and the floating roller rear guide roller 105 in sequence and enters between the synchronous control unit traction pressure roller 108 and the synchronous control unit traction roller 109, and then enters the indentation and punching unit.

[0039] The creasing and perforating unit includes a set of creasing rollers 13, which includes two creasing rollers 13 arranged vertically and tangent to each other. A set of perforating rollers 14 is arranged on the side of the set of creasing rollers 13 away from the synchronization control unit. The set of perforating rollers 14 includes two perforating rollers 14 arranged vertically and tangent to each other. One of the creasing rollers 13 is connected to a creasing roller motor 26, which is connected to a creasing roller driver 25. One of the perforating rollers 14 is connected to a perforating roller motor 28, which is connected to a perforating roller driver 27. Both the creasing roller driver 25 and the perforating roller driver 27 are connected to a servo control system 31. The servo control system 31 controls the creasing roller motor 26 and the perforating roller motor 28 to rotate through the creasing roller driver 25 and the perforating roller driver 27, respectively, thereby driving the creasing rollers 13 and the perforating rollers 14 to rotate. The printing paper 29 passes between the set of creasing rollers 13 and the set of perforating rollers 14 in sequence before entering the receiving and traction unit.

[0040] The material receiving and traction unit includes a receiving floating roller 15, a receiving traction roller 16 on the side of the receiving floating roller 15 away from the indentation and punching unit, and a receiving traction pressure roller 17 on the side of the receiving traction roller 16 away from the receiving floating roller 15. The receiving floating roller 15 is used for receiving tension control. The receiving traction roller 16 and the receiving traction pressure roller 17 are tangent. A winding 18 is located below the receiving traction roller 16 and the receiving traction pressure roller 17. A first guide roller IV is located on the side of the receiving floating roller 15 near the indentation and punching unit, and a second guide roller IV is located on the side of the receiving floating roller 15 away from the indentation and punching unit. The first guide roller IV and the second guide roller IV are symmetrically arranged along the take-up floating roller 15, and the height of the first guide roller IV and the second guide roller IV is greater than the height of the take-up floating roller 15. A third guide roller IV is arranged on the side of the first guide roller IV away from the take-up floating roller 15, and a fourth guide roller IV is arranged below the third guide roller IV. The printing paper passes through the fourth guide roller IV, the third guide roller IV, the first guide roller IV, the take-up floating roller 15, and the second guide roller IV in sequence, and then enters the take-up traction roller 16 and the take-up traction pressure roller 17 for winding.

[0041] like Figure 3 As shown, the printing plate roller 6 in the printing unit is driven by the printing motor 20, and the printing driver 19 controls the printing motor 20. The post-printing traction roller 9 is driven by the post-printing traction motor 22, and the post-printing traction driver 21 controls the post-printing traction motor 22. The synchronous control unit traction roller 109 is driven by the synchronous traction motor 24, and the synchronous traction driver 23 controls the synchronous traction motor 24. The creasing roller 13 is driven by the creasing roller motor 26, and the creasing roller driver 25 controls the creasing roller motor 26. The perforating roller 14 is driven by the perforating roller motor 28, and the perforating roller driver 27 controls the perforating roller motor 28.

[0042] Example 3

[0043] The synchronous control method for the printing press and the creasing / drilling unit adopts the aforementioned synchronous control device for the printing press and the creasing / drilling unit, such as... Figure 4 and 5 As shown, please follow these steps:

[0044] Step 1: Power on the machine, evenly distribute the ink, and press the printing rollers together (5 rollers).

[0045] Step 2, adjust the position of the synchronous floating roller 103;

[0046] The specific process is as follows:

[0047] The servo control system 31 controls the printing unit, post-printing traction unit, synchronous control unit 10, and creasing and punching unit to operate synchronously. At the same time, the floating roller tension cylinder 107 is activated, and the floating roller position detection linear potentiometer 104 detects the current position of the synchronous floating roller 103 and transmits the position information to the servo control system 31. The servo control system 31 compares the received position information with the set position information to obtain the position deviation. Based on the position deviation, the servo control system 31 controls the running speed of the synchronous control unit traction roller 109, creasing roller 13, and punching roller 14 through the synchronous traction driver 23, creasing roller driver 25, and punching roller driver 27, respectively, so that the synchronous floating roller 103 is in the middle position.

[0048] Step 3: Begin printing on printing paper 29;

[0049] The specific process is as follows: The printing process is divided into two parts:

[0050] In the first path, the floating roller position detection linear potentiometer 104 detects the position information of the synchronous floating roller 103 in real time and transmits the position information to the servo control system 31. The servo control system 31 compares the received position information with the set position information to obtain the position deviation. If the position deviation -10mm < θ < 10mm, the running speed of the synchronous control unit traction roller 109, indentation roller 13, and punching roller 14 remains unchanged. If the position deviation θ > 10mm, the servo control system 31 adjusts the synchronous traction driver 23, indentation roller driver 25, and punching roller driver 27 respectively. The electronic gear ratio controls the rotational speeds of the synchronous traction motor 24, the indentation roller motor 26, and the punching roller motor 28, thereby controlling the forward speed adjustment of the synchronous control unit traction roller 109, the indentation roller 13, and the punching roller 14. If the position deviation θ < -10mm, the servo control system 31 controls the rotational speeds of the synchronous traction motor 24, the indentation roller motor 26, and the punching roller motor 28 by adjusting the electronic gear ratios of the synchronous traction driver 23), the indentation roller driver 25, and the punching roller driver 27, respectively, thereby controlling the reverse speed adjustment of the synchronous control unit traction roller 109, the indentation roller 13, and the punching roller 14.

[0051] In the second stage, the registration control system 30 starts working. The indentation and perforation registration photoelectric sensor 12 detects the printing mark information on the printing paper 29 and transmits the printing mark information to the registration control system 30. The registration control system 30 compares the acquired information with the set information to obtain the synchronization deviation and position deviation I. The registration control system 30 transmits the synchronization deviation and position deviation I to the servo control system 31. If the position deviation -0.02mm < δ < 0.02mm, the phase of the indentation roller 13 and the perforation roller 14 remains unchanged. If the position deviation δ > 0.02mm, the servo control system 31 adjusts the phase of the indentation roller driver 25 and the perforation roller driver 27 respectively, and then controls the indentation roller motor 26 and the perforation roller motor 28 to adjust the phase of the indentation roller 13 and the perforation roller 14 in the positive direction. If the position deviation δ < -0.02mm... The servo control system 31 adjusts the phases of the indentation roller driver 25 and the perforation roller driver 27, and then controls the indentation roller motor 26 and the perforation roller motor 28 to reverse the phases of the indentation roller 13 and the perforation roller 14. If the average synchronization deviation is -0.1mm < η < 0.1mm, the speed of the traction roller 109 of the synchronization control unit remains unchanged. If the average synchronization deviation is η > 0.1mm, the servo control system 31 controls the speed of the synchronization traction motor 24 by adjusting the electronic gear ratio of the synchronization traction driver 23, thereby controlling the speed of the traction roller of the synchronization control unit to adjust in the forward direction. If the average synchronization deviation is η < -0.1mm, the servo control system 31 controls the speed of the synchronization traction motor 24 by adjusting the electronic gear ratio of the synchronization traction driver 23, thereby controlling the speed of the traction roller of the synchronization control unit to adjust in the reverse direction.

Claims

1. A method for synchronously controlling a printing press and an indentation / punching unit, characterized in that, A synchronous control device for printing press and creasing / punching unit is adopted, including a feeding and traction unit, a printing unit, a post-printing traction unit, a synchronous control unit (10), a creasing / punching unit, and a receiving and traction unit arranged in sequence according to the conveying direction of printing paper (29). A printing registration photoelectric sensor (7) is provided between the printing unit and the post-printing traction unit. A creasing / punching color registration photoelectric sensor (12) is provided between the synchronous control unit (10) and the creasing / punching unit. The printing registration photoelectric sensor (7) and the creasing / punching color registration photoelectric sensor (12) are all connected to the registration control system (30). The printing unit, the post-printing traction unit, the synchronous control unit (10), and the creasing / punching unit are all connected to the servo control system (31). The specific steps are as follows: Step 1: Turn on the machine, evenly distribute the ink, and press the printing roller (5) together. Step 2, adjust the position of the synchronous floating roller (103); Step 3, begin printing on the printing paper (29); Step 3 involves two steps: In the first path, the floating roller position detection linear potentiometer (104) detects the position information of the synchronous floating roller (103) in real time and transmits the position information to the servo control system (31). The servo control system (31) compares the received position information with the set position information to obtain the position deviation. If the position deviation -10mm < θ < 10mm, the running speed of the synchronous control unit traction roller (109), indentation roller (13), and punching roller (14) remains unchanged. If the position deviation θ > 10mm, the speed of the synchronous control unit traction roller (109), indentation roller (13), and punching roller (14) is adjusted in the positive direction. If the position deviation θ < -10mm, the speed of the synchronous control unit traction roller (109), indentation roller (13), and punching roller (14) is adjusted in the reverse direction. In the second path, the registration control system (30) starts working. The indentation and perforation color registration photoelectric sensor (12) detects the printing mark information on the printing paper (29) and transmits the printing mark information to the registration control system (30). The registration control system (30) compares the acquired information with the set information to obtain the synchronization deviation and position deviation I. The registration control system (30) transmits the synchronization deviation and position deviation I to the servo control system (31). If the position deviation is -0.02mm < δ < 0.02mm, the phase of the indentation roller (13) and the perforation roller (14) remains unchanged. If the position deviation is δ > 0.02mm, the phase of the indentation roller (13) and the perforation roller (14) is adjusted in the positive direction. If the position deviation is δ < -0.02mm, the phase of the indentation roller (13) and the perforation roller (14) is adjusted in the negative direction. If the average value of the synchronization deviation is -0.1mm < η < 0.1mm, the speed of the traction roller of the synchronization control unit is adjusted in the positive direction. If the average value of the synchronization deviation is η < -0.1mm, the speed of the traction roller of the synchronization control unit is adjusted in the negative direction.

2. The synchronous control method for the printing press and the indentation / perforation unit according to claim 1, characterized in that, The unwinding and traction unit includes an unwinding traction roller (2), an unwinding traction pressure roller (3) is provided on the side of the unwinding traction roller (2) close to the printing unit, and an unwinding floating roller (4) is provided on the side of the unwinding traction roller (2) away from the printing unit. The unwinding traction roller (2) is tangent to the unwinding traction pressure roller (3).

3. The synchronous control method for the printing press and the indentation / punching unit according to claim 1, characterized in that, The printing unit includes a printing pressure roller (5), and a printing plate roller (6) is arranged below the printing pressure roller (5). The printing pressure roller (5) is tangent to the printing plate roller (6). The printing plate roller (6) is connected to a printing motor (20). The printing motor (20) is connected to a printing driver (19). The printing driver (19) is connected to a servo control system (31). A printing registration photoelectric sensor (7) is arranged on the side of the printing pressure roller (5) near the post-printing traction unit. The printing registration photoelectric sensor (7) is connected to the registration control system (30).

4. The synchronous control method for the printing press and the indentation / punching unit according to claim 1, characterized in that, The post-printing traction unit includes a post-printing traction roller (9), and a post-printing traction pressure roller (11) is provided on the side of the post-printing traction roller (9) close to the synchronization control unit. The post-printing traction roller (9) is tangent to the post-printing traction pressure roller (11). A post-printing traction tension sensor (8) is provided on the side of the post-printing traction roller (9) away from the synchronization control unit. The post-printing traction roller (9) is connected to a post-printing traction motor (22). The post-printing traction motor (22) and the post-printing traction tension sensor (8) are both connected to a post-printing traction driver (21). The post-printing traction driver (21) is connected to a servo control system (31).

5. The synchronous control method for the printing press and the indentation / punching unit according to claim 1, characterized in that, The synchronization control unit includes a floating roller front guide roller (106), and a floating roller rear guide roller (105) is provided on the side of the floating roller front guide roller (106) away from the post-printing traction unit. A synchronous floating roller (103) is provided between the floating roller front guide roller (106) and the floating roller rear guide roller (105). The height of the synchronous floating roller (103) is greater than the height of the floating roller front guide roller (106). The floating roller front guide roller (106) and the floating roller rear guide roller (105) are symmetrically arranged along the synchronous floating roller (103). One end of the roller shaft of the synchronous floating roller (103) is connected to the telescopic end of the floating roller tension cylinder (107). The other end of the roller shaft of the synchronous floating roller (103) is fitted with a synchronous gear (102). The synchronous gear (102) meshes with... The system includes a synchronous rack (101), a floating roller (103) with a floating roller position detection linear potentiometer (104) on its roller shaft, a synchronous control unit traction roller (108) on the side of the floating roller rear guide roller (105) near the indentation and punching unit, a synchronous control unit traction roller (109) below the synchronous control unit traction roller (108), the synchronous control unit traction roller (108) and the synchronous control unit traction roller (109) being tangent, the synchronous control unit traction roller (109) being connected to a synchronous traction motor (24), the synchronous traction motor (24) and the floating roller position detection linear potentiometer (104) being connected to a synchronous traction driver (23), and the synchronous traction driver (23) being connected to a servo control system (31).

6. The synchronous control method for the printing press and the indentation / punching unit according to claim 1, characterized in that, The indentation and punching unit includes a set of indentation rollers (13), and a set of punching rollers (14) is arranged on the side of the set of indentation rollers (13) away from the synchronous control unit. One of the indentation rollers (13) is connected to an indentation roller motor (26), and the indentation roller motor (26) is connected to an indentation roller driver (25). One of the punching rollers (14) is connected to a punching roller motor (28), and the punching roller motor (28) is connected to a punching roller driver (27). The indentation roller driver (25) and the punching roller driver (27) are both connected to the servo control system (31).

7. The synchronous control method for the printing press and the indentation / punching unit according to claim 1, characterized in that, The receiving and traction unit includes a receiving floating roller (15), a receiving traction roller (16) is provided on the side of the receiving floating roller (15) away from the indentation and punching unit, and a receiving traction pressure roller (17) is provided on the side of the receiving traction roller (16) away from the receiving floating roller (15). The receiving traction roller (16) and the receiving traction pressure roller (17) are tangent.

8. The synchronous control method for the printing press and the indentation / punching unit according to claim 1, characterized in that, The specific process of step 2 is as follows: the printing unit, post-printing traction unit, synchronous control unit (10), and creasing and punching unit are controlled to run synchronously by the servo control system (31). At the same time, the floating roller tension cylinder (107) is started. The floating roller position detection linear potentiometer (104) detects the current position of the synchronous floating roller (103) and transmits the position information to the servo control system (31). The servo control system (31) compares the received position information with the set position information to obtain the position deviation. According to the position deviation, the servo control system (31) controls the running speed of the synchronous control unit traction roller (109), creasing roller (13), and punching roller (14) through the synchronous traction driver (23), creasing roller driver (25), and punching roller driver (27) respectively, so that the synchronous floating roller (103) is in the middle position.

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