Elliptical printing machine and control method thereof

Abstract

The present application relates to an elliptical printing machine and a control method thereof, wherein the elliptical printing machine comprises a frame, a controller and a guide rail arranged on the frame, a plurality of printing heads are symmetrically arranged on both sides of the frame, a plurality of platens for carrying items to be printed and a plurality of baking mechanisms are arranged on the guide rail, a plurality of stations for realizing different functions are arranged on the frame, and the stations include a printing station, a cooling station and a baking station, the controller is used to control the printing head to perform printing actions, and to control the position and movement direction of each platen, and the controller is also used to control the control panel to retract each time the items to be printed corresponding to the number of stations of the printing station group are printed so that the platen currently on the printing station is the first platen to enter the station in the printing station group, and one end of the elliptical printing machine is also provided with a feeding and discharging station. The present application has the effect of saving the space occupied by the printing machine and further improving the production efficiency of the printing machine.

Description

Technical Field

[0001] The invention relates to the technical field of elliptical printing machines, and in particular to an elliptical printing machine and a control method thereof. Background Art

[0002] The working principle of the elliptical printing machine is to use the elliptical motion trajectory to accurately print on textiles through the printing head. Specifically, when the printing machine starts working, the platen will move to the next station along the elliptical trajectory driven by the motor. After the platen is positioned, each printing head is started to print, and the designed pattern is accurately printed on the textile. Since the elliptical motion trajectory can cover the entire printing area more evenly, this printing machine can achieve high-quality printing effects. During the printing process, repeated printing can be performed as needed to achieve a more perfect effect.

[0003] When the oval printing machine of the prior art prints the same color multiple times, a lot of printing heads are arranged on the oval production line. For example, if red needs to be printed five times, five printing heads are arranged in sequence for printing red. A baking position and a cooling position are also set between two adjacent printing heads, specifically in the order of printing, baking and cooling. Therefore, the production line occupies a particularly large space. In addition, waiting for baking and cooling also wastes time, resulting in low production efficiency. In order to save space, the prior art adopts a method of retreating from the cooling position to the printing position (such as the patent application with publication number CN110626055A, that is, the same printing head is used for printing the same color, thereby reducing the arrangement of the printing heads, but the production efficiency still cannot be improved. Summary of the invention

[0004] In order to save space occupied by a printing machine and further improve the production efficiency of the printing machine, the present application provides an elliptical printing machine and a control method thereof.

[0005] In the first aspect, the above-mentioned invention objective of the present application is achieved through the following technical solutions:

[0006] An elliptical printing machine, comprising: a frame, a controller and a guide rail arranged on the frame, a plurality of printing heads are symmetrically arranged on both sides of the frame, each of the printing heads is used to print pigments of different colors on the items to be printed, a plurality of table plates for carrying the items to be printed and a plurality of baking mechanisms are arranged on the guide rail, the movement direction of the table plates on the guide rails includes clockwise and counterclockwise, a plurality of workstations for realizing different functions are arranged on the frame, the workstations are used to fix the table plates and the number of the workstations is the same as the number of the table plates, the workstations include a printing station, a cooling ... The printing station comprises a printing head, a printing station, a plurality of cooling stations and a plurality of baking stations, each of which constitutes a printing station group, the baking station is provided with a baking mechanism, the cooling station and the baking station are arranged on both sides of each of the printing heads on the same side of the frame, and the cooling station and the baking station on both sides of each of the printing heads are symmetrically arranged, the controller is used to control the platen to move from the starting station of the group of printing stations to the end station and then retreat to the starting station, the number of retreats is N, and N is an integer greater than 0.

[0007] By adopting the above technical scheme, a number of printing heads are symmetrically arranged on both sides of the printing machine, and each printing head can independently choose to print different colors, or different patterns of the same color, so as to reduce the number of printing heads that need to be installed when performing complex printing work to save the space occupied by the printing machine. The platen on the guide rail is used to carry the items to be printed. When the platen moves to the position of the printing head, the printing head can be driven to perform printing work. Therefore, the platen is driven to move so that each platen moves to the position of each printing head in turn to complete the required printing workload; and in order to increase the thickness of the printing, the same printing often needs to be repeated many times. Therefore, when each printing head prints different colors or patterns, the platen is driven to move in the opposite direction, so that after an item to be printed completes one printing, it returns to the position of the printing head many times to complete multiple printings. In addition, a complete printing process for the printed item includes baking and cooling in addition to printing. Therefore, the workstations are divided into printing stations, cooling stations and baking stations. The purpose of dividing the workstations is to group them so that each item to be printed undergoes multiple printings in the group. A complete printing process, for example, since the platen is moving, during the operation of the printing machine, whenever the platen moves to the starting station in the printing station group, the printing head prints the items to be printed on the platen, that is, the starting station is the printing station, and then the movement of the platen causes the items to be printed on the platen to enter the next process, and the items to be printed come to the cooling station and the baking station in the group after the printing station. In the process of the first item to be printed moving to the cooling station and the baking station, the subsequent items to be printed take turns to the position of the printing head for printing. When the first item to be printed has passed all the stations of the printing station group, the control panel is retreated, and the number of retreats is N, which is determined by the specific production process in the factory, so that the subsequent items to be printed can complete a complete printing process, that is, through one retreat, each item to be printed can complete a complete printing process when it circulates at the station in the printing station group, and the entire production line does not have extra time to wait for other items to be printed to complete the printing process, which greatly improves the production efficiency of the printing machine.

[0008] In a preferred example, the present application can be further configured as follows: the frame is provided with a first driving mechanism for driving the printing head to work and a second driving mechanism for driving the platen to move,

[0009] and / or,

[0010] The printing station group includes one printing station, two cooling stations and two baking stations.

[0011] By adopting the above technical solution, when the platen moves to the position of the printing head, the printing head can be driven by the first driving mechanism to perform printing work. Therefore, the platen is driven to move by the second driving mechanism, so that each platen moves to the position of each printing head in turn, and each printing station group is set to include a printing station, two cooling stations and two baking stations. In order to speed up the baking efficiency of the printing pigment, two baking stations are used to bake the printed items, and each printing head on the same side of the frame includes two cooling stations and two baking stations on both sides. The left and right sides of the machine head include two adjacent printing station groups. In the same movement direction of the platen, the printing station of the previous printing station group is the cooling station or baking station of the next printing station group. In this way, the work of the printing head position plus the two cooling stations and two baking stations on the left and right sides respectively constitute two groups of printing station groups. When the control plate is retracted, it can be cyclically retracted within these two groups of printing station groups, realizing the function of one printing head completing multiple printings, and in this way, the space occupied by a printing head and printing stations can be reduced, thereby reducing the cost and the space occupied by the printing machine.

[0012] In a preferred example, the present application may be further configured as follows: the cooling station and the baking station in the printing station group are arranged at intervals on both sides of the printing head in the direction toward the two ends of the elliptical printing machine.

[0013] By adopting the above technical scheme, in the direction from both sides of the printing head to the two ends of the elliptical printing machine, that is, in the opposite direction of the two adjacent printing station groups on both sides of the printing head, for example, in the clockwise direction of the printing station group on the left side of the printing head and in the counterclockwise direction of the printing station group on the right side of the printing head, the cooling station and the baking station in the printing station group are arranged at intervals, and the cooling station and the baking station on both sides of the printing head are symmetrical. In this way, when the platen carrying the items to be printed circulates on the stations of the printing station group, it is first baked and then cooled, and then cooled after baking. This cycle avoids the situation where the cooling station and the baking station are arranged too densely, resulting in excessive baking intensity or too long cooling time, thereby ensuring the normal operation of the printing machine.

[0014] In a preferred example, the present application can be further configured as follows: one end of the elliptical printing machine is also provided with a loading and unloading station for placing the items to be printed.

[0015] By adopting the above technical solution, an inlet and outlet station for placing the items to be printed is provided at one end of the elliptical printing machine. The items to be printed are placed at the inlet and outlet station and then sent to each station. In combination with the movement direction of the table including clockwise movement and counterclockwise movement, when the movement direction of the table of the printing machine is adjusted, the probability that the items to be printed that have completed the printing work need to continue to circulate on the printing machine can be reduced, thereby reducing work efficiency.

[0016] In a preferred example, the present application can be further configured as follows: on both sides of the printing head in the direction toward the two ends of the elliptical printing machine, the arrangement order of the two cooling stations and the two baking stations in the printing station group is: one cooling station, two baking stations and one cooling station.

[0017] By adopting the above technical scheme, in the direction from both sides of the printing head to the two ends of the elliptical printing machine, that is, in the opposite direction of the two adjacent printing station groups on both sides of the printing head, the arrangement order of the two cooling stations and the two baking stations in the printing station group is from one cooling station to two baking stations to one cooling station. For example, the station order of the printing station group on the left side of a printing head in the clockwise direction is that the station corresponding to the printing head is the printing station, and then from a cooling station to two baking stations to a cooling station, and the station order of the printing station group on the right side of the printing head in the counterclockwise direction is also that the station corresponding to the printing head is the printing station, and then from a cooling station to two baking stations to a cooling station. In this way, the cooling stations and baking stations on both sides of the printing head are symmetrical with the printing head as the axis of symmetry, and when arranged in this way, it can be ensured that each platen carrying the items to be printed can pass through the baking station at least twice, meeting the requirement of at least baking twice.

[0018] In a preferred example, the present application can be further configured as follows: the controller is also used to control the platen (4) to move from the starting printing station of the group of printing stations to the ending cooling station, and then retreat to the starting printing station N times, and then control the platen to continue moving to the next printing station group.

[0019] By adopting the above technical scheme, combined with the printing station group including one printing station, two cooling stations and two baking stations, when the platen moves to the printing station group whose starting station is the printing station, that is, when the printing machine moves clockwise, the printing station group is located on the left side of the printing head, the control platen moves from the starting station of a printing station group to the end station, and during the movement of the platen, the printing head is controlled to print each object to be printed that moves to the printing station. When 5 printings are completed, there is a platen on each station of the printing station group. At this time, the platen located at the end station can be controlled to retreat to the starting station, so that the platen located at the cooling station at the end point retreats to the starting printing station, that is, the five platens of the current printing station group retreat to the five platens of the subsequent printing station group, completing the printing cycle.

[0020] In the second aspect, the above invention objective of the present application is achieved through the following technical solutions:

[0021] A control method for an elliptical printing machine is applied to the above-mentioned elliptical printing machine, and the control method for the elliptical printing machine includes:

[0022] Acquire printing production process information, wherein the printing production process information includes the number of times each color pigment is printed on each of the items to be printed;

[0023] Generating printing machine control information according to the printing production process information, wherein the printing machine control information is used to control the movement direction of the control panel;

[0024] In response to a production start instruction, the oval printing machine is controlled based on the printing machine control information.

[0025] By adopting the above technical solution, before using the printing machine for scheduling production, a detailed printing production process plan, that is, printing production process information, will be formulated. The printing production process information includes the type of items to be printed, the area to be printed on the items to be printed, the printing pattern and printing color of each printing head on the printed items, and the number of times each printing head repeats printing on the printed items. In actual production, the number of times different printing heads repeat printing on the printed items may be different. For example, a printing head needs to repeat printing five times, while the adjacent printing head only needs to repeat printing. Four times. At this time, if it is set that the entire platen needs to be retracted five times throughout the process, then when it retracts for the fifth time, the adjacent printing head will not work. In this way, the items to be printed are invalid when they are retracted for the fifth time, resulting in waste of resources and reduced efficiency. Therefore, through the printing production process information, the number of times all printing heads print each item to be printed under the current production period is judged, and the appropriate printing machine control information is set based on reducing the number of invalid retraction work. That is, by changing the direction of the platen at the appropriate time, the number of invalid retraction work in the overall production process is reduced, thereby further improving the production efficiency of the printing machine.

[0026] In a preferred example, the present application can be further configured as follows: the control method of the elliptical printing machine also includes:

[0027] Acquire printing plan change information, and generate and update printing machine control information based on the printing plan change information and the printing production process information;

[0028] The oval printing machine is controlled based on the updated printing machine control information.

[0029] By adopting the above technical solution, during the production process of the printing machine, if the current production plan changes, for example, some urgent orders need to be completed as soon as possible, the changed production process plan information can be input, and then the changed production process plan information and the existing production process plan information can be combined to regenerate the printing machine control information suitable for the changed production process plan, thereby ensuring that the number of invalid rollback work remains low.

[0030] In a preferred example, the present application may be further configured as follows: generating and updating the control information of the printing machine based on the printing plan change information and the printing production process information includes:

[0031] Determine whether the printing plan change information covers the subsequent printing production process information, and if so, use the printing plan change information to replace the printing production process information, and generate and update the printing machine control information based on the printing plan change information;

[0032] If the judgment is no, the stamp plan change information is input into a preset stamp plan database, all stamp plan information in the stamp plan database is analyzed, and according to the analysis result, the predicted stamp plan change information is obtained;

[0033] Generate predicted printing machine control information according to the predicted printing plan change information;

[0034] The oval printing machine is controlled based on the predicted printing machine control information.

[0035] By adopting the above technical solution, some emergencies may occur during the production process of the printing machine, resulting in the need to urgently change the printing production process plan, and the specific change plan cannot be determined. For example, due to insufficient supply of raw materials, it is impossible to determine whether the type of raw materials needs to be changed later, or the customer may suddenly request to change the order content but does not give a clear requirement. For example, the customer requires the production sequence of certain orders to be advanced, but it is not clear whether the customer needs to advance the sequence of more orders. Therefore, the printing plan change information at this time may not be able to cover the subsequent printing production process information. In this way, the subsequent printing production process information is in an unclear state, and it is impossible to generate appropriate printing machine control information based on the determined printing production process information. Based on this, possible printing plan change information can be predicted based on all current orders represented by a preset printing plan database, and then the printing machine control information can be generated based on the predicted printing plan change information, so as to ensure that the number of invalid rollback work is maintained at a low level when the production plan is unclear.

[0036] In a preferred example, the present application can be further configured as follows: the printing production process information also includes printing quality control information, and the control method of the elliptical printing machine also includes:

[0037] Acquiring quality monitoring information, comparing the quality monitoring information with the printing quality control information, and generating a quality change instruction when the quality monitoring information does not meet the requirements of the printing quality control information;

[0038] In response to the quality change instruction, generating a number of alternative adjustment plans;

[0039] Based on the preset conditional selection rules, conditional printing machine control information is obtained by screening from a number of the alternative adjustment schemes;

[0040] The oval printing machine is controlled based on the conditional printing machine control information.

[0041] By adopting the above technical scheme, in the printing production process, it is also necessary to control the printing quality. The printing production process information also includes printing quality control information, for example, the baking intensity when baking the printed object each time, etc. Therefore, it is possible to obtain quality monitoring information corresponding to the printing quality control information, for example, the working parameter monitoring data of the baking mechanism, so as to judge whether the printing quality meets the standard by comparing the quality monitoring information and the printing quality control information. When it is judged that the quality monitoring information does not meet the requirements of the printing quality control information, a quality change instruction is generated to control the printing machine to improve the printing quality by adjusting the movement direction of the platen, etc., so as to achieve the effect of improving production efficiency while ensuring production quality.

[0042] In summary, the present application includes at least one of the following beneficial technical effects:

[0043] 1. When each printing head prints different colors or patterns, the platen is driven to move in the opposite direction, so that after an object to be printed completes one printing, it can complete multiple printings by returning to the position of the printing head multiple times. In addition, a complete printing process for the printed object includes baking and cooling in addition to printing. Therefore, the workstations are divided into printing stations, cooling stations and baking stations. The purpose of dividing the stations is to group them so that each object to be printed undergoes a complete printing process in the group. For example, since the platen is moving, during the operation of the printing machine, every time the platen moves to the starting station in the printing station group, the printing head prints the object to be printed on the platen, that is, the starting station is the printing station, and then the movement of the platen causes the object to be printed on the platen to proceed. Enter the next process, the items to be printed come to the cooling station and baking station after the printing station in the group. When the first item to be printed moves to the cooling station and baking station, the other items to be printed take turns to the position of the printing machine head for printing. When the first item to be printed has passed all the stations of the printing station group, the control panel retracts, and the number of retractions is N, which is determined by the specific production process in the factory, so that the other items to be printed can complete a complete printing process. That is to say, through one retraction, each item to be printed can complete a complete printing process when it circulates on the stations in the printing station group. The entire production line does not have extra time to wait for other items to be printed to complete the printing process, which greatly improves the production efficiency of the printing machine.

[0044] 2. When the platen moves to the position of the printing head, the printing head can be driven by the first driving mechanism to perform printing. Therefore, the platen is driven to move by the second driving mechanism so that each platen moves to the position of each printing head in turn. Each printing station group is set to include a printing station, two cooling stations and two baking stations. In order to speed up the baking efficiency of the printing pigment, two baking stations are used to bake the printed items. In addition, each printing head on the same side of the frame includes two cooling stations and two baking stations on both sides. The left and right sides of the same printing head The invention comprises two adjacent printing station groups. In the same moving direction of the platen, the printing station of the previous printing station group is the cooling station or baking station of the next printing station group. Thus, the work of the printing head position plus the two cooling stations and two baking stations respectively included on the left and right constitutes two printing station groups. When the control plate is retracted, the two printing station groups can be cyclically retracted, realizing the function of one printing head completing multiple printings, and thus reducing the space occupied by one printing head and printing stations, thereby reducing the cost and the space occupied by the printing machine.

[0045] 3. In the direction of both ends of the elliptical printing machine on both sides of the printing head, that is, in the opposite direction of the two adjacent printing station groups on both sides of the printing head, for example, in the clockwise direction of the printing station group on the left side of the printing head and in the counterclockwise direction of the printing station group on the right side of the printing head, the cooling station and the baking station in the printing station group are arranged at intervals, and the cooling station and the baking station on both sides of the printing head are symmetrical. In this way, when the platen carrying the items to be printed circulates on the stations of the printing station group, it is first baked and then cooled, and then cooled after baking. This cycle avoids the situation where the cooling station and the baking station are arranged too densely, resulting in excessive baking intensity or too long cooling time, thereby ensuring the normal operation of the printing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a schematic diagram of the structure of the oval printing machine in the embodiment of the present application.

[0047] Figure 2 yes Figure 1 A partial enlarged schematic diagram of part A.

[0048] Figure 3 It is a first implementation flow chart of the control method of the elliptical printing machine in the embodiment of the present application.

[0049] Figure 4 This is a second implementation flow chart of the control method of the elliptical printing machine in the embodiment of the present application.

[0050] Figure 5 It is a flow chart for implementing S40 of the control method of the elliptical printing machine in the embodiment of the present application.

[0051] Figure 6 It is the third implementation flow chart of the control method of the elliptical printing machine in the embodiment of the present application.

[0052] Explanation of the accompanying drawings: 1. frame; 2. guide rail; 3. printing head; 4. table; 5. loading and unloading station. DETAILED DESCRIPTION

[0053] In order to enable those skilled in the art to better understand the present application, the following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0054] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0055] In one embodiment, reference Figure 1 and Figure 2 The present application discloses an elliptical printing machine, which includes: a frame 1, a controller and a guide rail 2 installed on the frame 1. A plurality of printing heads 3 are symmetrically installed on both sides of the frame 1. Each printing head 3 is used to print pigments of different colors on the items to be printed. Each printing head 3 can work independently without interfering with each other, ensuring that multiple printing heads 3 print multiple colors at the same time and complete them at one time, thereby improving the printing efficiency. The main actuator on the printing head 3 is a scraper. The length of the scraper's stroke can be set by itself and uniformly controlled by the controller. In addition, the length of the scraper's stroke on the printing head 3 can be set separately through the control panel on each printing head 3. In this embodiment, 10 printing heads 3 are installed on one side of the frame 1, and 20 printing heads 3 are installed on both sides, that is, the elliptical printing machine can print 20 different colors. The items to be printed can be clothing pieces, ready-made clothes, pants or socks, etc., and the printing pigments can be glue or water slurry, etc.

[0056] The frame 1 is provided with a first driving mechanism for driving the printing head 3 and a second driving mechanism for driving the platen 4. The first driving mechanism and the second driving mechanism may be a cylinder system or a servo motor, etc. A plurality of platens 4 for carrying items to be printed are installed on the guide rail 2. The guide rail 2 corresponds to the outline of the frame 1 in an elliptical shape. The movement direction of the platen 4 includes clockwise movement and counterclockwise movement. When the platen 4 moves clockwise or counterclockwise along the elliptical track of the guide rail 2, each platen 4 on the guide rail 2 moves synchronously. In addition, the printing production process includes printing, baking and cooling processes. Therefore, a plurality of baking mechanisms are also installed on the guide rail 2 to realize the baking function, while the printing function is performed by the printing head. 3 is realized, and the cooling function can be realized by natural cooling of the items to be printed. In order to facilitate the implementation of each process, a number of workstations for realizing different functions required in the printing production process are set on the frame 1, including a printing station, a cooling station and a baking station. The station is used to fix the platen 4. For example, when the platen 4 moves to the position of the station, the platen 4 is fixed to facilitate the printing and baking processes, and the number of stations is the same as the number of platens 4. It should be noted that the platens 4 for feeding and discharging set at the feed port and the discharge port are not included, that is, the number of platens 4 used to realize the printing, baking and cooling processes is equal to the number of workstations used to realize the printing, baking and cooling processes.

[0057] Since there are multiple printing heads 3, multiple platens 4 and multiple workstations on the printing machine, for the convenience of management, a plurality of printing stations, cooling stations and baking stations are combined into a printing station group. For example, if the current printing process requires two bakings for each printing, one printing station, two cooling stations and two baking stations can be combined into a printing station group, and the printing station corresponds to the printing head 3, and the baking mechanism is arranged on the baking station. In this way, when the object to be printed comes to the printing station, it is printed, when it comes to the baking station, it is baked, and when it comes to the cooling station, it is cooled. Each station on the printing machine is divided into multiple printing station groups with the printing head 3 as the main equipment, and the object to be printed completes the printing process of the printing head 3 corresponding to the printing station group within the range of each printing station group.

[0058] Since the movement direction of the platen 4 includes clockwise movement and counterclockwise movement, that is, when each printing head 3 prints different colors or patterns, the platen 4 is retracted by changing the movement direction of the platen 4, so that after a printing object is printed once, it can be printed multiple times by retracting to the position of the printing head 3 multiple times. Therefore, each printing head 3 on the same side of the frame 1 includes a cooling station and a baking station on both sides, and the cooling station and the baking station on both sides of each printing head 3 are symmetrical. Therefore, the same printing head 3 has two groups of printing station groups, and the controller is used to control the first drive mechanism to control the printing head 3 to perform printing, and to control the second drive mechanism to control the position and movement direction of each platen 4; in one embodiment, when the starting station is the cooling station, the controller is used to control the platen 4 from a group of printing station groups The starting station moves to the starting station of the next printing station group along the movement direction of the guide rail. At this time, the starting station of the next printing station group is the printing station. When the starting station is the printing station, the controller is used to control the console 4 to move from the starting station of a printing station group to the end station and then retreat to the starting station. The number of retreats is N, and N is an integer greater than 0. For example, N can be set to 1, 2, 3, 4, 5, etc. N can be set according to actual needs. In one embodiment, N is based on the maximum number of required printing times. For example, one printing head needs to print red five times, and the other printing head needs to print green four times. The maximum number of times red can be printed is five times. Then the entire printing process of the entire machine must be set according to the retreat of 5 times. As for the color less than 5 times, it can be coordinated by controlling the printing head not to work.

[0059] In one embodiment, the printing station group includes one printing station, two cooling stations and two baking stations, and the baking mechanisms corresponding to the two baking stations are independent and can be set to bake separately or simultaneously. At the same time, the printing heads 3 corresponding to two adjacent printing station groups are the same.

[0060] In one embodiment, in the direction of both ends of the elliptical printing machine on both sides of the printing head 3, that is, in the opposite direction of two adjacent printing station groups on both sides of the printing head 3, for example, in the clockwise direction of the printing station group on the left side of the printing head 3 and in the counterclockwise direction of the printing station group on the right side of the printing head 3, the cooling stations and baking stations within the printing station groups are arranged at intervals.

[0061] In one embodiment, in the direction from both sides of the printing head 3 to the two ends of the elliptical printing machine, that is, in the opposite direction of the two adjacent printing station groups on both sides of the printing head 3, the arrangement order of the two cooling stations and the two baking stations in the printing station group is from one cooling station to two baking stations to one cooling station. For example, the station order of the printing station group on the left side of a printing head 3 in the clockwise direction is that the station corresponding to the printing head 3 is the printing station, then from a cooling station to two baking stations to a cooling station, and the station order of the printing station group on the right side of the printing head 3 in the counterclockwise direction is also: the station corresponding to the printing head 3 is the printing station, then from a cooling station to two baking stations to a cooling station.

[0062] In one embodiment, one end of the elliptical printing machine is also provided with a loading and unloading station 5 for placing items to be printed and taking out the items to be printed that have completed printing. In addition, the last station along the movement direction of the table on the guide rail can also be used as a discharging station. The items to be printed are placed at the loading and unloading station and then sent to each station, and the items to be printed that have completed printing are taken away by the loading and unloading station. The production process can be standardized through fixed loading and unloading stations.

[0063] In one embodiment, a station at the other end of the elliptical printing machine can also be used as a feed and discharge station 5 at the same time, so that the production activities of the printing machine can be flexibly adjusted, and combined with the movement direction of the table 4 including clockwise movement and counterclockwise movement, when the movement direction of the table 4 of the printing machine is adjusted, the original feed port can be selected as the discharge port, and the original discharge port can be selected as the feed port. For example, when the items to be printed enter through the feed and discharge station 5 at one end, and all printing work is completed after the items to be printed are printed by half of the printing heads 3 on one side of the printing machine, if the original discharge port at one end is still used as the discharge port, the items to be printed still need to circulate on the other side of the printing machine, resulting in a decrease in production efficiency. Therefore, the feed and discharge station 5 at the other end can be used as the discharge port at this time, so that the items to be printed do not need to circulate on the other side of the printing machine, thereby improving production efficiency.

[0064] In one embodiment, the printing station group includes one printing station, two cooling stations and two baking stations, and in the opposite direction of two adjacent printing station groups on both sides of the printing head 3, the arrangement order of the two cooling stations and two baking stations in the printing station group is one cooling station to two baking stations to one cooling station. When the platen 4 moves to a printing station of a printing station group whose starting station is the printing station, the control console moves from the starting printing station of a printing station group to the ending cooling station, and then retreats to the starting printing station N times, and then the control console continues to move to the next printing work group, or when there is no next printing work group, that is, the current printing work group is a printing work group close to the feed and discharge station, takes out the object to be printed, which is equivalent to the controller starting to count every time the platen 4 enters the printing station. When the printing of the object to be printed is completed 5 times, the control console 4 retreats so that the platen 4 currently on the printing station is the first platen 4 to enter the station in the printing station group.

[0065] refer to Figure 1 and Figure 2Under normal circumstances, the workstations corresponding to the No. 1-5 platens 4 in the figure are a group of printing workstations, and the workstations corresponding to the No. 6-10 platens 4 in the figure are also a group of printing workstations. However, if the printing head on the workstation corresponding to the No. 5 platen 4 in the figure needs to perform multiple printings, the control console needs to be retracted so that the printing head on the workstation corresponding to the No. 5 platen 4 performs multiple printings on each item to be printed. During the movement and retraction of the control console, each platen 4 only moves on the No. 1-9 workstations in the figure; therefore, in order to make the present technical field In order to better understand the present application scheme, when the printing machine head on the station corresponding to the No. 5 platen 4 in the figure needs to perform multiple printings, during the movement and retraction of the control console, the stations corresponding to the No. 1-5 platens 4 in the figure are set as one group of printing station groups, and the stations corresponding to the No. 5-9 platens 4 are set as another group of printing station groups, among which the stations corresponding to the No. 1, 4, 6, and 9 platens 4 are cooling stations, the stations corresponding to the No. 2, 3, 7, and 8 platens 4 are baking stations, and the station corresponding to the No. 5 platen 4 is two groups of printing stations at the same time. The printing station of the printing station group, the implementation principle of an elliptical printing machine in the embodiment of the present application is: set the initial movement direction of the printing machine, for example, set it to the clockwise direction, and need to repeat printing twice, and set the scraper stroke of each printing head 3, configure the printing pigment and pattern of each printing head 3, set the operating power of the baking mechanism, at the beginning of printing production, place the object to be printed on the platen 4 through the feed port at one end of the printing machine, the second drive mechanism drives each platen 4 to move synchronously, and the second drive mechanism drives the bearing The platen 4 carrying the article to be printed moves to the cooling station No. 1 of the first group of printing stations, and passes through stations No. 2, 3, and 4 in sequence before arriving at the printing station No. 5. When the platen 4 passes through stations No. 1-4, the baking mechanism does not work. After the platen 4 carrying the first article to be printed passes through the printing station No. 5, the printing head 3 corresponding to the printing station No. 5 is driven by the first driving mechanism to print, and then passes through the cooling station No. 6. When passing through stations No. 7 and 8, the baking mechanism works to bake, and then moves to station No. 9;

[0066] In this process, when the platen 4 moves to the cooling station No. 1 of the first printing station group, the second object to be printed is placed on the platen 4 at the same time, and driven by the second driving mechanism, after passing through the printing station No. 5, the printing head 3 corresponding to the printing station No. 5 is driven by the first driving mechanism to print, and then passes through the cooling station No. 6, and when passing through the stations No. 7 and 8, the baking mechanism is operated to bake, and then moves to the station No. 8;

[0067] When the first object to be printed moves to the No. 2 station, the third object to be printed is placed on the platen 4 and moves to the No. 7 station after printing. At this time, the third object to be printed is baked only once;

[0068] When the first object to be printed moves to the No. 3 station, the fourth object to be printed is placed on the platen 4 and moves to the No. 6 station after printing. At this time, the fourth object to be printed has not been baked;

[0069] When the first object to be printed moves to the No. 4 station, the fifth object to be printed is placed on the platen 4 and is printed at the No. 5 station. At this time, the fifth object to be printed has not been baked.

[0070] When the printing of the fifth object to be printed is completed, the objects to be printed corresponding to the 5 stations of the printing station group are completed, and the platen 4 on the printing station No. 5 is the platen 4 carrying the fifth object to be printed. Therefore, the control panel 4 is retracted, so that the platen 4 currently on the printing station No. 5 is the platen 4 of the first station to enter the printing station group, that is, the platen 4 carrying the first object to be printed. During the retraction process, the baking mechanism and the printing head 3 do not work;

[0071] When the platen 4 carrying the first object to be printed is retracted and fixed on the printing station No. 5, the control plate 4 continues to move toward the direction of the printing station No. 9, and at the same time, the printing head 3 is controlled to print the first object to be printed for the second time. When the first object to be printed passes through the stations No. 7 and No. 8, the baking mechanism is operated to bake it, so that the first object to be printed completes two printing processes;

[0072] After the printing head 3 is controlled to print the first object to be printed for the second time, the second object to be printed moves to the printing station 5 and is printed, and when passing through the stations 7 and 8, the baking mechanism is operated to bake, so that the second object to be printed completes two printing processes;

[0073] When the platen 4 carrying the first object to be printed is retreated and fixed on the printing station No. 5, the third object to be printed is on the baking station No. 3, and the fourth object to be printed is on the baking station No. 2, and the third object to be printed and the fourth object to be printed are only baked once, therefore, the baking mechanism of the baking station No. 3 bakes the third object to be printed, and the baking mechanism of the baking station No. 2 bakes the fourth object to be printed, so that the third object to be printed and the fourth object to be printed complete the required two bakings. It should be noted that after the baking mechanism of the baking station No. 3 bakes the third object to be printed, the baking of the fourth object to be printed when it passes the baking station No. 3 is stopped, and then the third object to be printed and the fourth object to be printed move to the printing station No. 5 and are printed, and when passing the stations No. 7 and 8, the baking mechanism works to bake, so that the third object to be printed and the fourth object to be printed complete the two printing processes;

[0074] When the platen 4 carrying the first object to be printed is retracted and fixed on the No. 5 printing station, the fifth object to be printed is on the No. 3 baking station, the fourth object to be printed is on the No. 1 cooling station, and the fifth object to be printed has not been baked. Therefore, when the fifth object to be printed passes through the No. 2 and No. 3 baking stations, the baking mechanism bakes the fifth object to be printed, so that the fifth object to be printed completes the required two bakings. Then the fifth object to be printed moves to the No. 5 printing station and is printed, and when passing through the No. 7 and No. 8 stations, the baking mechanism works to bake, so that the fifth object to be printed and the fourth object to be printed complete two printing processes;

[0075] Since only two printings are required this time, the printing work on the printing head 3 corresponding to printing station No. 5 is completed at this time, and then the control panel 4 continues to move in the direction of the first platen 4 to the ninth platen 4, and enters the printing process of the next printing head 3. It can be seen that when the same printing head 3 needs to be used for repeated printing twice, it only needs to be retreated once and after the retreat is restored, the last object to be printed can be passed through the two baking stations in the previous printing station group. Similarly, when the same printing head 3 needs to be used for repeated printing n times, it only needs to be retreated n-1 times. In addition, it can be foreseen that when placing the objects to be printed through the feed port, the number placed each time is the same as the number of stations in the printing station group, and the placement time is after the same printing head 3 completes the repeated printing and enters the printing process of the next printing head 3.

[0076] In addition, it should be noted that the printing station group corresponding to the object to be printed is not fixed. Figure 2 When the first to fifth items to be printed are subjected to cyclic retraction printing in stations 1-9, the stations corresponding to plates 4 of 1-5 are one printing station group, and the stations corresponding to plates 4 of 5-9 are another printing station group. When the first to fifth items to be printed enter stations 10-19 for cyclic retraction printing, the stations corresponding to plates 4 of 10-14 are one printing station group, and the stations corresponding to plates 4 of 15-19 are another printing station group. Therefore, the printing station group for the same five items to be printed is not fixed.

[0077] In one embodiment, a control method for an elliptical printing machine is provided, which is applied to the above-mentioned elliptical printing machine, such as Figure 3 As shown, the control method of the elliptical printing machine includes:

[0078] S10: Acquire printing production process information, where the printing production process information includes the number of times each color pigment is printed on each to-be-printed article.

[0079] In this embodiment, the printing production process information refers to the printing production plan information of the printing machine in the current working period.

[0080] Specifically, before using the printing machine for production scheduling, the factory's production and operation staff will formulate a printing production plan for the current construction period according to the production order requirements, for example, according to the type of items to be printed, the pattern and required color of each item to be printed, and the number of printing times required for each color of each item to be printed, and then determine the number of printing heads 3 required to be used and the number of times each printing head 3 repeats printing based on this information, and then set the working parameters of the printing head 3 and the baking mechanism in combination with the area where printing is performed on the items to be printed. Combined with the above information, a detailed printing production plan for the current construction period is formulated, and thus, the printing production process information is obtained, which mainly includes the number of times each color pigment is printed for each item to be printed. It should be noted that when formulating the printing production plan, the screen for the printing pattern has been prepared, and the screen has been installed on the printing head 3, so the printing production process information also includes the printing pattern and printing color of each printing head 3.

[0081] S20: Generate printing machine control information according to the printing production process information, and the printing machine control information is used to control the movement direction of the console.

[0082] Specifically, in actual production, different printing heads 3 may have different numbers of repeated printings on the items to be printed. For example, a printing head 3 needs to repeat printing five times, while an adjacent printing head 3 only needs to repeat printing four times. At this time, if it is set that the entire platen 4 needs to be retracted five times throughout the entire process, then when it retracts for the fifth time, the adjacent printing head 3 does not work, so the items to be printed have invalid working time when they retract for the fifth time. In addition, the printing heads 3 required for different types of items to be printed may be the same, partially the same, or different. Therefore, if the movement trajectory of the platen 4 cannot be reasonably arranged, it will also lead to an increase in invalid working time.

[0083] Therefore, according to the printing production process information, the number of times all printing heads 3 print each type of object to be printed under the current production period is judged, and appropriate printing machine control information is set with the purpose of reducing the time of invalid return work. For example, in the normal movement sequence of the platen 4, the second-to-last printing head 3 needs to repeat printing five times, and the penultimate printing head 3 only needs to repeat printing four times, then all the platens 4 can be set to retract only three times, so that the penultimate printing head 3 can complete the number of repeated printings after retracting three times, and the second-to-last printing head 3 can complete the number of repeated printings after retracting three times, and when retracting for the fifth time, the printing and / or baking work is controlled to be performed synchronously during the retraction process, so that there is no need to stop and wait for printing and / or baking work when the platen 4 moves normally, which is equivalent to reducing the time of invalid return work and improving production efficiency. It should be noted that the control during the retraction When printing and / or baking are carried out simultaneously during the process, it is necessary to ensure the integrity of the process. For example, if a certain object to be printed has only undergone one baking, it can only undergo two bakings during the retraction process and cannot be printed, thereby generating printing machine control information; in addition, if the first type of object to be printed requires the use of all printing heads 3, and the second type of object to be printed only requires the use of five printing heads 3 in reverse order of the normal movement sequence of the platen 4, if the second type of object to be printed is placed at this time, it will cause the second type of object to be printed to follow the first type of object to be printed to be retracted many times, resulting in a large amount of invalid working time. Therefore, the second type of object to be printed is placed first. After the second type of object to be printed completes the required number of printing operations, the second type of object to be printed can be sent out of the printing machine first, so that the second type of object to be printed does not need to be retracted more, thereby reducing the time and number of invalid retractions.

[0084] Furthermore, when both ends of the elliptical printing machine are provided with loading and unloading stations 5 for placing items to be printed and taking out printed items to be printed, the printing machine control information generated according to the printing production process information can further reduce the time and number of invalid rollbacks.

[0085] S30: In response to the production start instruction, the oval printing machine is controlled based on the printing machine control information.

[0086] Specifically, after the printing machine control information is generated, when the printing machine is started, the elliptical printing machine is controlled based on the printing machine control information in response to the production start instruction.

[0087] In one embodiment, if Figure 4 As shown, the control method of the elliptical printing machine also includes:

[0088] S40: Acquire printing plan change information, and generate updated printing machine control information based on the printing plan change information and printing production process information.

[0089] Specifically, during the production process of the printing machine, if the current production plan changes, for example, some urgent orders need to be completed as soon as possible, the staff can input the changed production process plan information, thereby obtaining the printing plan change information, and combining the printing plan change information with the existing printing production process information to regenerate the printing machine control information suitable for the production process plan change, that is, update the printing machine control information.

[0090] S50: Controlling the oval printing machine based on the updated printing machine control information.

[0091] Specifically, after the updated printing machine control information is generated, the elliptical printing machine is controlled based on the updated printing machine control information.

[0092] In one embodiment, if Figure 5 As shown, in step S40, based on the printing plan change information and the printing production process information, the printing machine control information is generated and updated, including:

[0093] S41: Determine whether the printing plan change information covers the subsequent printing production process information. If it is determined to be yes, use the printing plan change information to replace the printing production process information, and generate updated printing machine control information based on the printing plan change information.

[0094] Specifically, during the production process of the printing machine, some emergencies may occur, resulting in the need to urgently change the printing production process plan, and the specific change plan cannot be determined. For example, due to insufficient supply of raw materials, it is unclear whether the type of raw materials needs to be changed later, or the customer may suddenly request to change the order content without giving clear requirements. For example, the customer requires the production sequence of some orders to be advanced, but it is not clear whether the customer needs to advance the sequence of more orders;

[0095] Therefore, after obtaining the printing plan change information, first determine whether the printing plan change information covers the subsequent printing production process information. If it is judged to be yes, the printing plan change information can be directly used to replace the printing production process information, and the printing plan change information can be used as the current printing production plan. Based on the printing plan change information, the printing machine control information is regenerated and updated.

[0096] S42: If the judgment is no, the stamp plan change information is input into a preset stamp plan database, all the stamp plan information in the stamp plan database is analyzed, and the predicted stamp plan change information is obtained according to the analysis result.

[0097] Specifically, if it is determined that the printing plan change information cannot cover the subsequent printing production process information, the subsequent printing production process information is in an unclear state, and it is impossible to generate appropriate printing machine control information based on the determined printing production process information. Therefore, the printing plan change information is input into the preset printing plan database, which includes all historical printing production plans and future scheduled printing production plans, as well as the factory's order information on hand. Therefore, through the printing plan database, it is determined whether the changed printing production plan is a future scheduled printing production plan or the factory's unscheduled order information on hand. Based on the judgment result, combined with the historical response of the factory's operating staff to changes represented by all historical printing production plans, the subsequent changes of the operating staff are predicted, thereby generating predicted printing plan change information.

[0098] Furthermore, if it is determined that the changed printing production plan is not within the scope of the future scheduled printing production plan and the unscheduled order information on hand of the factory, it means that the printing work at this time is unexpected, and therefore the subsequent printing plan cannot be predicted at this time. Based on this, each time the printing machine completes the printing of a group of items to be printed and enters a new group of items to be printed, it can generate preferred printing machine control information only for the existing items to be printed in the current printing machine.

[0099] S43: Generate predicted printing machine control information based on predicted printing plan change information.

[0100] Specifically, based on the predicted printing plan change information, the printing machine control information suitable for the production process plan change, ie, the predicted printing machine control information, is regenerated.

[0101] S44: Control the oval printing machine based on the predicted printing machine control information.

[0102] Specifically, after the predicted printing machine control information is generated, the elliptical printing machine is controlled based on the predicted printing machine control information.

[0103] In one embodiment, if Figure 6 As shown, the printing production process information also includes printing quality control information, and the control method of the elliptical printing machine also includes:

[0104] S60: Acquire quality monitoring information, compare the quality monitoring information with the printing quality control information, and generate a quality change instruction when the quality monitoring information does not meet the requirements of the printing quality control information.

[0105] In this embodiment, the printing production process information also includes printing quality control information, and the printing quality control information refers to the control standard information of the printing quality.

[0106] Specifically, quality monitoring information is obtained. In the present embodiment, the quality monitoring information refers to the working parameter monitoring data of the baking mechanism. The baking degree of the baking mechanism can be inferred based on the working parameter monitoring data of the baking mechanism. Therefore, the baking degree of the inferred baking mechanism is compared with the baking standard degree indicated in the printing quality control information. When the measured baking degree of the baking mechanism is less than the baking standard degree indicated in the printing quality control information, a quality change instruction is generated. The quality change instruction refers to instruction information used to indicate that the printing quality does not meet the standards and the production plan needs to be changed.

[0107] S70: In response to the quality change instruction, generate several alternative adjustment plans.

[0108] Specifically, in response to the quality change instruction, it is determined whether the operating parameters of the baking mechanism can be controlled and adjusted. When it is determined that the adjustment cannot be made, several alternative adjustment schemes are generated, and none of the alternative adjustment schemes has an adjustment scheme for the operating parameters of the baking mechanism. The alternative adjustment scheme refers to an alternative printing machine control scheme information for adjusting the baking mechanism and / or the movement direction and the movement direction change point of the table 4 of the printing machine. When it is determined that the adjustment can be made, the generated alternative adjustment scheme is an adjustment scheme for the operating parameters of the baking mechanism.

[0109] S80: Based on the preset conditional selection rules, conditional printing machine control information is obtained from a number of alternative adjustment schemes.

[0110] Specifically, the preset conditional alternative rules refer to the rules for controlling the invalid backoff time to the minimum. Therefore, the preset conditional alternative rules are extracted, and based on the preset conditional alternative rules, the conditional printing machine control information is screened from a number of alternative adjustment schemes. For example, the several alternative adjustment schemes include that during normal operation, the control console board 4 backs off three more stations when backing off or restores three more stations when backing off, so that the items to be printed can be baked not by a baking mechanism with an insufficient baking degree, but by a baking mechanism of other printing station groups. At this time, based on the preset conditional alternative rules, it is necessary to determine whether the invalid backoff time caused by backing off three more stations when backing off is longer, or the invalid backoff time caused by restoring three more stations when backing off is longer, and the scheme that causes less invalid backoff time is used as the conditional printing machine control information.

[0111] S90: Controlling the oval printing machine based on the conditional printing machine control information.

[0112] Specifically, after the conditional printing machine control information is generated, the elliptical printing machine is controlled based on the conditional printing machine control information.

[0113] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0114] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. An oval printing machine, characterized in that: include: A frame (1), a controller and a guide rail (2) arranged on the frame (1); a plurality of printing heads (3) are symmetrically arranged on both sides of the frame (1); each printing head (3) is used to print pigments of different colors on an object to be printed; a plurality of table plates (4) for carrying the object to be printed and a plurality of baking mechanisms are arranged on the guide rail (2); the movement direction of the table plates (4) on the guide rail (2) includes clockwise and counterclockwise; a plurality of workstations for realizing different functions are arranged on the frame (1); the workstations are used to fix the table plates (4); and the number of the workstations is the same as the number of the table plates (4); and the workstations include: The printing station comprises a printing station, a cooling station and a baking station, each of the printing stations is provided with a printing head (3), the printing station, a plurality of cooling stations and a plurality of baking stations constitute a printing station group, the baking station is provided with a baking mechanism, the cooling station and the baking station are provided on both sides of each of the printing heads (3) on the same side of the frame (1), and the cooling stations and the baking stations on both sides of each of the printing heads (3) are symmetrically arranged, the controller is used to control the platen to move from the starting station of the printing station group to the end station and then retreat to the starting station, the retreat number is N, and N is an integer greater than 0; The control method of the oval printing machine comprises: Acquire printing production process information, wherein the printing production process information includes the number of times each color pigment is printed on each of the items to be printed; Generating printing machine control information according to the printing production process information, wherein the printing machine control information is used to control the movement direction of the console (4); In response to a production start instruction, controlling the oval printing machine based on the printing machine control information; Also includes: Acquire printing plan change information, and generate and update printing machine control information based on the printing plan change information and the printing production process information; Controlling the elliptical printing machine based on the updated printing machine control information includes: Determine whether the printing plan change information covers the subsequent printing production process information, and if so, use the printing plan change information to replace the printing production process information, and generate and update the printing machine control information based on the printing plan change information; If the judgment is no, the stamp plan change information is input into a preset stamp plan database, all stamp plan information in the stamp plan database is analyzed, and according to the analysis result, the predicted stamp plan change information is obtained; Generate predicted printing machine control information according to the predicted printing plan change information; The oval printing machine is controlled based on the predicted printing machine control information.

2. The oval printing machine according to claim 1, characterized in that: The frame (1) is provided with a first driving mechanism for driving the printing head (3) to work and a second driving mechanism for driving the table (4) to move. and / or, The printing station group includes one printing station, two cooling stations and two baking stations.

3. The oval printing machine according to claim 1, characterized in that: The cooling station and the baking station in the printing station group are arranged at intervals on both sides of the printing head (3) in the direction towards the two ends of the elliptical printing machine.

4. The oval printing machine according to claim 1, characterized in that: One end of the elliptical printing machine is also provided with a loading and unloading station (5) for placing the articles to be printed.

5. The oval printing machine according to claim 2, characterized in that: In the direction from both sides of the printing head (3) to the two ends of the elliptical printing machine, the arrangement order of the two cooling stations and the two baking stations in the printing station group is: one cooling station, two baking stations and one cooling station.

6. The oval printing machine according to claim 5, characterized in that: The controller is also used to control the platen (4) to move from the starting printing station of the group of printing stations to the ending cooling station, and then retreat to the starting printing station N times, and then control the platen to continue moving to the next printing station group.

7. The oval printing machine according to claim 1, characterized in that: The printing production process information also includes printing quality control information, and the control method of the elliptical printing machine also includes: Acquiring quality monitoring information, comparing the quality monitoring information with the printing quality control information, and generating a quality change instruction when the quality monitoring information does not meet the requirements of the printing quality control information; In response to the quality change instruction, generating a number of alternative adjustment plans; Based on the preset conditional selection rules, conditional printing machine control information is obtained by screening from a number of the alternative adjustment schemes; The oval printing machine is controlled based on the conditional printing machine control information.

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