A printing machine control method, a printing machine, and a storage medium

Abstract

The present application relates to the technical field of digital printing, and particularly relates to a printing machine control method, a printing machine and a storage medium, the printing machine comprising a filter assembly and a conveying assembly, the filter assembly being arranged above the conveying assembly, and the conveying assembly being used for conveying a to-be-printed medium; the filter assembly comprises a filter screen unit, and the filter screen unit is used for permeating printing paste to the to-be-printed medium; the method comprises the following steps: acquiring a working state of the printing machine, wherein the working state of the printing machine comprises a printing job waiting state; if the printing machine is in the printing job waiting state, lifting the filter assembly to a first preset position; after determining that the filter assembly is lifted to the first preset position, controlling the filter screen unit to rotate around a central axis of the filter assembly at a first rotating speed. The method can prevent the residual printing paste in the filter screen unit from permeating and dropping to the to-be-printed medium, thereby reducing the waste of the to-be-printed medium and reducing the production cost.

Description

Technical Field

[0001] This invention relates to the field of digital printing technology, and in particular to a printing press control method, a printing press, and a storage medium. Background Technology

[0002] The conveyor belt of the belt-type digital textile printing machine is equipped with an online sizing device. This device includes a screen frame shaft and a nickel mesh shaft. The screen frame shaft controls the overall forward and backward movement of the nickel mesh shaft, while the nickel mesh shaft controls the rotation of the nickel mesh. During the printing process, the online sizing device applies sizing to the fabric to be printed, located on the conveyor belt. By adjusting the speed parameters of the screen frame shaft and the nickel mesh shaft to match the speed of the conveyor belt, the linear velocity of the nickel mesh surface is synchronized with the movement speed of the fabric to be printed on the conveyor belt surface. The sizing material in the nickel mesh penetrates to the surface of the fabric through the mesh's pores.

[0003] However, when printing is paused or the nickel mesh is lifted after printing is stopped, the residual paste in the nickel mesh will slowly seep out of the nickel mesh surface due to gravity, eventually dripping onto the fabric to be printed below the nickel mesh. This causes the fabric to be printed below the nickel mesh to be scrapped and lost due to paste accumulation, increasing production costs. Summary of the Invention

[0004] In view of this, embodiments of the present invention provide a printing press control method, a printing press, and a storage medium. This method can prevent residual printing paste in the filter unit from seeping and dripping onto the printing medium, thereby reducing waste of the printing medium and lowering production costs.

[0005] To address the aforementioned technical problems, the embodiments of the present invention provide the following technical solutions:

[0006] In a first aspect, embodiments of the present invention provide a printing press control method, the printing press including a slurry filtering assembly and a conveying assembly, the slurry filtering assembly being disposed above the conveying assembly, the conveying assembly being used to convey a medium to be printed; the slurry filtering assembly including a filter screen unit being used to permeate printing slurry into the medium to be printed;

[0007] The method includes:

[0008] The working status of the printing press is obtained, wherein the working status of the printing press includes a printing job waiting status;

[0009] If the printing press is in the printing job waiting state, control the filter assembly to lift it to a first preset position;

[0010] After determining that the slurry filter assembly has been raised to the first preset position, the filter screen unit is controlled to rotate around the central axis of the slurry filter assembly at a first rotational speed.

[0011] In some embodiments, after the slurry assembly is raised, the method further includes:

[0012] If the absolute value of the difference between the vertically upward running height of the filter assembly and the preset lifting height is less than or equal to a first preset threshold, then it is determined that the filter assembly is lifted to the first preset position.

[0013] Otherwise, it is determined that the filter assembly has not been raised to the first preset position.

[0014] In some embodiments, if the printing press pauses or terminates printing, it is determined that the printing press is in a print job waiting state.

[0015] In some embodiments, the first rotational speed is 1-6 rpm.

[0016] In some embodiments, the operating state of the printing press further includes a print job execution state, and the method further includes:

[0017] If the printing press is in the printing job execution state, the filter assembly is controlled to be pressed down to a second preset position, wherein when the filter assembly is pressed down to the second preset position, the filter screen unit is in contact with the medium to be printed;

[0018] After determining that the slurry filter assembly is pressed down to the second preset position and that the conveying assembly is moving horizontally in a straight line at a preset operating speed, the filter screen unit is controlled to rotate around the central axis of the slurry filter assembly at a second rotational speed.

[0019] In some embodiments, after controlling the slurry assembly to press down, the method further includes:

[0020] If the absolute value of the difference between the vertical downward movement height of the filter slurry assembly and the preset downward pressure height is less than or equal to the second preset threshold, then it is determined that the filter slurry assembly has been pressed down to the second preset position.

[0021] Otherwise, it is determined that the filter assembly has not been pressed down to the second preset position.

[0022] In some embodiments, after controlling the slurry assembly to press down, the method further includes:

[0023] The working status of the conveying component is obtained, wherein the working status of the conveying component includes a normal operating status;

[0024] If the conveying component is in the normal operating state, then it is determined that the conveying component is moving horizontally in a straight line at a preset operating speed;

[0025] Otherwise, it is determined that the conveying component is not moving horizontally in a straight line at a preset operating speed.

[0026] In some embodiments, the method further includes:

[0027] If the slurry filter assembly is not pressed down to the second preset position, and / or the conveying assembly is not moving horizontally in a straight line at the preset operating speed, a warning reminder will be issued.

[0028] In a second aspect, embodiments of the present invention provide a printing press, comprising:

[0029] A controller, and a slurry filter assembly and a conveying assembly respectively communicated with the controller, the slurry filter assembly being disposed above the conveying assembly, the controller being used to control the slurry filter assembly and the conveying assembly, the conveying assembly being used to convey the printing medium;

[0030] The slurry assembly includes a filter screen unit, which is used to permeate printing slurry into the printing medium.

[0031] The controller includes:

[0032] A processor, and a memory communicatively connected to the processor;

[0033] The memory stores computer program instructions executable by the processor, which, when invoked by the processor, cause the processor to perform any of the printing press control methods proposed in the first aspect.

[0034] Thirdly, embodiments of the present invention provide a computer-readable storage medium storing processor-executable computer program instructions, which, when invoked by the processor, cause the processor to perform any of the printing press control methods proposed in the first aspect.

[0035] The beneficial effects of the embodiments of the present invention are as follows: Unlike the prior art, the printing press control method provided in the embodiments of the present invention includes a printing press comprising a slurry filtering assembly and a conveying assembly. The slurry filtering assembly is disposed above the conveying assembly, and the conveying assembly is used to convey the medium to be printed. The slurry filtering assembly includes a filter screen unit, which is used to permeate printing paste into the medium to be printed. The method includes: acquiring the working state of the printing press, wherein the working state of the printing press includes a printing job waiting state; if the printing press is in the printing job waiting state, controlling the slurry filtering assembly to lift it to a first preset position; after determining that the slurry filtering assembly has been lifted to the first preset position, controlling the filter screen unit to rotate around the central axis of the slurry filtering assembly at a first rotational speed.

[0036] In this embodiment, the control method obtains the working status of the printing press and, when the printing press is in the printing job waiting state, controls the filter assembly to be raised to a preset position and controls the filter screen unit to rotate around the central axis of the filter assembly at a preset rotation speed. This can prevent the residual printing paste in the filter screen unit from seeping and dripping onto the printing medium, thereby reducing the waste of the printing medium and lowering production costs. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below only show some embodiments of the present invention and should not be considered as limiting the scope of protection. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram illustrating application scenarios of the printing press control method provided in some embodiments of the present invention;

[0039] Figure 2 This is a schematic diagram illustrating another application scenario of the printing press control method provided in some embodiments of the present invention;

[0040] Figure 3 These are schematic diagrams of the printing press provided in some embodiments of the present invention;

[0041] Figure 4 This is a schematic diagram of the structure of the controller in a printing press provided in some embodiments of the present invention;

[0042] Figure 5 This is a schematic flowchart of a printing press control method provided in some embodiments of the present invention.

[0043] Explanation of reference numerals in the attached figures:

[0044] 100. Printing press;

[0045] 10. Conveying components;

[0046] 20. Slurry filter assembly; 21. Filter screen unit; 22. Filter screen shaft;

[0047] 30. Drive component; 31. First drive unit; 32. Second drive unit; 33. Third drive unit;

[0048] 40. Controller;

[0049] 200, printing medium; direction M, first direction; direction N, second direction. Detailed Implementation

[0050] To make the objectives and advantages of the embodiments of the present invention more readily understood, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The detailed description of the embodiments of the present invention in the accompanying drawings is not intended to limit the scope of protection claimed by the present invention, but merely to illustrate selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] It should be noted that, unless there is a conflict, the various technical features involved in the embodiments of the present invention described below can be combined with each other, and all are within the protection scope of the present invention. Furthermore, although functional modules are divided in the device or structural schematic diagram and a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. In addition, the terms "first," "second," "third," and other similar expressions used herein do not limit the data or execution order, but are only for illustrative purposes and to distinguish identical or similar items with substantially the same function and effect, and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features.

[0052] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. It should be understood that the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0053] Please see Figure 1 , Figure 1This is a schematic diagram illustrating an application scenario of the printing press control method provided in some embodiments of the present invention.

[0054] like Figure 1 As shown, the application scenario includes a printing press 100 and a printing medium 200. The printing press 100 includes a conveying assembly 10 and a filter assembly 20. Specifically, the filter assembly 20 is positioned above the conveying assembly 10, which conveys the printing medium at a preset operating speed V3. In some embodiments, the conveying unit 10 may include a conveyor belt, a drive motor, and a conveyor shaft to complete the conveying of the printing medium.

[0055] The slurry assembly 20 includes a filter screen unit 21. When printing patterns or designs, printing paste required for printing is added to the filter screen unit 21 by an auxiliary feeding device (e.g., a funnel). The filter screen unit 21 is used to permeate the printing paste into the medium to be printed, so as to permeate the added printing paste into the medium to be printed 200.

[0056] In this embodiment of the invention, the printing press 100 further includes a controller ( Figure 1 (Not shown in the image). The controller is communicatively connected to the conveying assembly 10 and the filter assembly 20 respectively. The controller is used to control the conveying assembly 10 and the filter assembly 20 to work together to permeate printing paste into the printing medium 200.

[0057] In some embodiments, the printing press 100 further includes a drive assembly 30, which is communicatively connected to a controller, which is also used to control the drive assembly 30. A filter assembly 20 is disposed on the drive assembly 30 and is connected to the drive assembly 30 via a mechanical transmission device (e.g., gears, belts, chains, etc.) or a direct connection.

[0058] Thus, the printing press 100 controls the drive assembly 30 to drive the filter slurry assembly 20 to move horizontally in a first direction, controls the drive assembly 30 to drive the filter slurry assembly 20 to move vertically in a second direction on the drive assembly 30, and controls the drive assembly 30 to drive the filter slurry assembly 20 to rotate.

[0059] Specifically, the drive assembly 30 includes a first drive unit 31, a second drive unit 32, and a third drive unit 33. The first drive unit 31 includes a first drive motor, the second drive unit 32 includes a second drive motor, and the third drive unit 33 includes a third drive motor. The third drive unit 33 is disposed within the second drive unit 32 and connected to the output terminal of the second drive motor. The second drive unit 32 is disposed within the first drive unit 31 and connected to the output terminal of the first drive motor.

[0060] In some embodiments, the slurry assembly 20 further includes a filter screen shaft 22, with filter screen units 21 disposed on the filter screen shaft 22. The filter screen shaft 22 is connected to the output end of a third drive motor via a mechanical transmission device (e.g., gears, belts, chains, etc.) or a direct connection method.

[0061] The first drive unit 31 drives the second drive unit 32 to move horizontally in a first direction via the first drive motor, thereby driving the third drive unit 33 to move horizontally in a first direction. This causes the filter shaft 22, which is located on the third drive unit 33, to move horizontally in a first direction, thereby driving the filter unit 21, which is located on the filter shaft 22, to move horizontally in a first direction.

[0062] The second drive unit 32 drives the third drive unit 33 to move vertically along the second direction on the second drive unit 32 via the second drive motor, so that the filter shaft 22 disposed on the third drive unit 33 moves vertically along the second direction on the second drive unit 32, thereby driving the filter unit 21 disposed on the filter shaft 22 to move vertically along the second direction on the second drive unit 32.

[0063] The third drive unit 33 drives the filter shaft 22 to rotate via the third drive motor, thereby causing the filter unit 21 disposed on the filter shaft 22 to rotate.

[0064] In some embodiments, the first direction can be direction M, and the second direction can be direction N. In other embodiments, the first and second directions can also be other directions.

[0065] It should be understood that both the first and second drive motors may include one or more of the following: linear motors, hydraulic motors, and pneumatic motors. The third drive motor may include one or more of the following: rotary motors, servo motors, and geared motors.

[0066] Among them, the filter unit 21 can be a printing paste penetration device such as a nickel screen, and the filter shaft 22 can be a transmission device such as a drive shaft or a drive shaft.

[0067] It should be understood that, in this embodiment of the invention, the operating status of the printing press 100 is acquired in real time, and when it is determined that the printing press 100 is in a printing job waiting state (e.g.) Figure 1 (As shown in the application scenario), the controller controls the drive component 30 to drive the filter slurry component 20 to lift to the first preset position, and controls the filter screen unit 21 to rotate around the central axis of the filter slurry component 20 at a first rotational speed V1. This can prevent the residual printing slurry in the filter screen unit 21 from seeping and dripping onto the printing medium 200, and prevent the printing medium 200 from being scrapped and lost due to the accumulation of printing slurry, thus effectively reducing production costs.

[0068] Understandably, Figure 1 The application scenario shown is only an illustration of a situation where, when the printing press 100 is in a printing job waiting state, the control drive component 30 drives the filter assembly 20 to lift to a first preset position, and then controls the filter screen unit 21 to rotate around the central axis of the filter assembly 20 at a first rotational speed V1. Figure 1 The application scenario shown in the embodiment does not impose any limitations on the number, type, components, or connection relationships of the printing press 100 in other application scenarios.

[0069] For example, please see Figure 2 , Figure 2 This illustrates another application scenario of the printing press control method provided by some embodiments of the present invention. Figure 2 In the application scenario shown, when the printing press 100 is in the printing job execution state, the control drive component 30 drives the filter pulp component 20 to press down to the second preset position so that the filter screen unit 21 is in contact with the printing medium 200. Then, the filter screen unit 21 is controlled to rotate around the central axis of the filter pulp component 20 at the second rotation speed V2, so that printing pulp permeates into the printing medium 200.

[0070] Please see Figure 3 , Figure 3 This is a schematic diagram of the structure of a printing press 100 provided in some embodiments of the present invention.

[0071] like Figure 3 As shown, the printing press 100 includes: a controller 40 and a conveying assembly 10 and a filter assembly 20 respectively connected in communication with the controller 40, wherein the controller 40 is used to control the conveying assembly 10 and the filter assembly 20.

[0072] Please refer to the following: Figure 1 and Figure 2 Specifically, the slurry assembly 20 is positioned above the conveying assembly 10, which conveys the printing medium. The slurry assembly 20 includes a filter screen unit 21, which permeates printing paste into the printing medium 200. It is understood that, in order to permeate printing paste into the printing medium 200, the filter screen unit 21 is cylindrical, and the printing paste permeates into the printing medium 200 through the mesh openings on the cylindrical surface of the filter screen unit 21.

[0073] It is understood that the printing press 100 provided in this embodiment of the invention may also include other components necessary to achieve the purpose of the invention. For example, the printing press 100 may also include a drive assembly 30, etc., and this embodiment of the invention does not impose any limitations on this.

[0074] Please see Figure 4 , Figure 4A schematic diagram of the structure of the controller 40 in a printing press 100 provided in some embodiments of the present invention is shown.

[0075] The controller 40 includes at least one processor 41 and a memory 42 connected in communication. Figure 4 Taking a bus system connection and a processor as an example, the various components in controller 40 are coupled together through bus system 43, which is used to realize the connection and communication between these components. It is easy to understand that bus system 43 may include not only data bus, but also power bus, control bus, and status signal bus, etc. However, for the sake of clarity and brevity, in... Figure 4 The general will label all buses as Bus System 43. Understandably, Figure 4 The structure shown in the embodiments is merely illustrative and does not limit the structure of the controller 40 described above. For example, the controller 40 may also include components that are more... Figure 4 The more or fewer components shown, or having the same Figure 4 The different configurations shown.

[0076] Specifically, processor 41 provides computational and control capabilities to control controller 40 to perform corresponding tasks. For example, it controls controller 40 to execute any of the printing press control methods provided in the embodiments of the present invention, or the steps in any possible implementation of any of the printing press control methods provided in the embodiments of the present invention. Those skilled in the art will understand that processor 41 can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components.

[0077] The memory 42, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs, non-transitory computer-executable programs, instructions, and modules, such as the programs, instructions, and modules corresponding to the printing press control method in the embodiments of the present invention. In some embodiments, the memory 42 may include a program storage area and a data storage area. The program storage area may store the operating system and application programs required for at least one function; the data storage area may store data created according to the use of the processor 41, etc. The processor 41 executes various functional applications and data processing of the controller 40 by running the non-transitory software programs, instructions, and modules stored in the memory 42, so as to implement any printing press control method provided in the embodiments of the present invention, or the steps in any possible implementation of any printing press control method provided in the embodiments of the present invention. The memory 42 may include high-speed random access memory and may also include non-transitory memory. For example, at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, the memory 42 may also include memory remotely located relative to the processor 41, and these remote memories may be connected to the processor 41 through a communication network. It is understood that examples of the above-mentioned communication networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0078] As can be understood from the above, the printing press control method provided in this embodiment of the invention can be implemented by various suitable types of printing presses with certain computing and control capabilities. For example, it can be implemented by the printing press 100 described above. The printing press control method provided in this embodiment of the invention will be described in detail below with reference to exemplary applications and implementations of the printing presses provided in this embodiment.

[0079] Please see Figure 5 , Figure 5 A schematic flowchart of a printing press control method provided in some embodiments of the present invention is shown.

[0080] It should be understood that the printing press control method provided in the embodiments of the present invention can be applied to the above-mentioned printing press (e.g., printing press 100). Specifically, the execution subject of the printing press control method is one or at least two processors of the controller in the printing press.

[0081] like Figure 5 As shown, the printing press control method includes, but is not limited to, the following steps S100-S300:

[0082] S100: Obtain the working status of the printing press, including the printing job waiting status.

[0083] Understandably, when in different operating states, the printing press uses a controller to control its various components to perform different actions to complete the corresponding tasks. Therefore, the printing press can determine its current operating state by detecting the status and parameters of each component.

[0084] Specifically, the printing press uses sensors installed on various key components to detect various printing control data in real time (e.g., the running speed of the filter assembly, the flow rate of ink or printing paste, temperature and humidity, the position and speed of the conveying assembly or other moving parts, etc.). The detected printing control data is then sent to the controller. After receiving the printing control data, the controller determines the current working state of the printing press based on the printing control data.

[0085] The operating state of the printing press includes a print job waiting state. In some embodiments, when printing is paused or terminated, the printing press enters a standby state, that is, it is determined that the printing press is in a print job waiting state.

[0086] S200: If the printing press is in a printing job waiting state, control the filter assembly to lift it to the first preset position.

[0087] See Figure 2 As shown, during the printing operation, the printing press controls the filter assembly to press down to the second preset position, so that the filter unit is in contact with the medium to be printed. Then, the controller coordinates the operation speed of the conveying assembly and the filter assembly to spread the printing paste in the filter unit through the mesh of the filter unit onto the medium to be printed.

[0088] Specifically, after receiving the printing control data detected by the sensors, the controller analyzes and judges the printing control data to determine the current working state of the printing press.

[0089] In some embodiments, if the printing press is paused or terminated by parsing the printing control data, the printing press enters a standby state. That is, it can be determined that the printing press is in a print job waiting state. For example, if parsing the printing control data reveals that the operating speed of the transport component is zero, it indicates that the transport component has stopped transporting the media to be printed. At this time, the printing press is paused or terminated, and the printing press enters a standby state, thus confirming that the printing press is in a print job waiting state.

[0090] After confirming that the printing press is in a printing job waiting state, the printing press controls the filter assembly to rise upwards via the controller. During the raising of the filter assembly, sensors or other detection devices detect whether the filter assembly has been raised to a first preset position, thereby raising the filter assembly to the first preset position. It should be understood that the first preset position is a predetermined lifting endpoint position that can be set in advance according to actual usage conditions. For example, Figure 1 The lifting endpoint of the filter slurry assembly shown in the embodiment can be a pre-set first preset position.

[0091] In some embodiments, after the slurry assembly is raised, it is necessary to detect and determine whether the slurry assembly has been raised to a first preset position, so that after it is determined that the slurry assembly has been raised to the first preset position, the filter screen unit is controlled to rotate around the central axis of the slurry assembly at a first rotational speed.

[0092] Specifically, in some embodiments, after the filter assembly is raised, the printing press control method further includes, but is not limited to, the following step S250:

[0093] S250: If the absolute value of the difference between the vertical upward running height of the filter slurry assembly and the preset lifting height is less than or equal to the first preset threshold, then it is determined that the filter slurry assembly is lifted to the first preset position.

[0094] S260: Otherwise, determine that the filter assembly has not been raised to the first preset position.

[0095] Understandably, when the first preset position is determined in advance, the height distance between the first preset position and the height position where it adheres to the printing medium can be calculated, and this height distance is the preset lifting height. That is, when the filter assembly is located in the first preset position, the distance between the filter assembly and the height position where it adheres to the printing medium is the preset lifting height.

[0096] During the process of lifting the filter assembly from the height position where it is attached to the printing medium to the first preset position, the filter assembly needs to be lifted by a preset lifting height (that is, the vertical upward movement distance of the filter assembly is the preset lifting height) so that the filter assembly moves to the first preset position.

[0097] Specifically, during the process of raising the slurry filter assembly to the first preset position, the vertical upward movement height of the slurry filter assembly is detected in real time by a sensor or other detection device. Then, the height distance is compared with the preset lifting height, the first distance difference between the height distance and the preset lifting height is calculated, and the absolute value of the first distance difference is obtained.

[0098] Then, the absolute value of the first distance difference is compared with the first preset threshold to determine the relationship between the absolute value of the first distance difference and the first preset threshold, thereby determining whether the filter slurry assembly has been raised to the first preset position.

[0099] If the absolute value of the first distance difference is less than or equal to the first preset threshold, it indicates that the slurry filter assembly has been raised to the vicinity of the first preset position or the first preset position, and it can be determined that the slurry filter assembly has been raised to the first preset position.

[0100] Otherwise, if the absolute value of the first distance difference is greater than the first preset threshold, it can be determined that the filter slurry assembly has not been raised to the first preset position.

[0101] It should be understood that the first preset threshold can be set and determined according to actual usage. For example, the first preset threshold can be set to 1mm, that is, when the absolute value of the first distance difference is less than or equal to 1mm, it is determined that the filter assembly has been raised to the first preset position. When the absolute value of the first distance difference is greater than 1mm, it is determined that the filter assembly has not been raised to the first preset position.

[0102] S300: After determining that the slurry filter assembly has been raised to the first preset position, control the filter screen unit to rotate around the central axis of the slurry filter assembly at the first rotation speed.

[0103] Specifically, the printing press uses various sensors or other detection devices to determine whether the filter assembly has been raised to a first preset position. For example, a pressure sensor is installed at the first preset position. If the pressure sensor detects a normal pressure signal from the filter assembly, it can be determined that the filter assembly has been raised to the first preset position.

[0104] After the filter assembly is raised to the first preset position, the printing press controls the motor or hydraulic system and other drive devices through the controller to adjust the speed of the motor or the pressure of the hydraulic system to adjust the rotation speed to the first rotation speed. Then, the motor or hydraulic system and other drive devices are controlled to rotate at the first rotation speed in the set rotation direction to drive the filter assembly to rotate at the first rotation speed. This drives the filter screen unit to rotate around the central axis of the filter assembly at the first rotation speed, thereby controlling the filter screen unit to rotate around the central axis of the filter assembly at the first rotation speed.

[0105] It should be understood that the initial rotational speed can be preset and determined according to the design and operational requirements of the printing press. Furthermore, once it is determined that the printing press is in a printing job waiting state, the addition of printing paste to the screen unit is stopped, and the operating speed of the conveyor assembly is appropriately reduced or the conveyor assembly is stopped. For example, see... Figure 1As shown, after determining that the printing press is in the printing job waiting state, the operating speed of the conveying component is reduced to the third operating speed, and the conveying component is controlled to move horizontally in a straight line along the first direction at the third operating speed V3; then the filter assembly is lifted to the first preset position, and the filter screen unit is controlled to rotate around the central axis of the filter assembly at the first rotation speed V1.

[0106] In some embodiments, the first rotational speed can be 1-6 rpm (1-6 revolutions per minute). For example, if the first rotational speed is 2 rpm, the filter unit is controlled to rotate slowly around the central axis of the slurry assembly at a speed of 2 revolutions per minute. In other embodiments, the first rotational speed can also be other rotational speeds, and the embodiments of the present invention do not limit this to any particular speed.

[0107] It should be understood that rotational speed can be expressed in rpm or rad / s, that is, the angle of rotation around a fixed point or axis per second. The conversion relationship between rpm and rad / s is as follows:

[0108]

[0109] Where rpm represents the number of rotations per minute, and rad / s represents the angle per second.

[0110] In this embodiment, when it is determined that the printing press is in a printing job waiting state (e.g., printing paused or printing terminated), the filter assembly is raised to a first preset position, and then the screen unit is rotated around the central axis of the filter assembly at a first rotational speed. This causes the residual printing paste in the screen unit to roll slowly inside the screen unit, making it less susceptible to gravity and less likely to seep and drip onto the printing media below, thus preventing waste and effectively reducing media waste and lowering production costs.

[0111] The printing press control method provided in this invention includes a printing press comprising a slurry filtering assembly and a conveying assembly. The slurry filtering assembly is disposed above the conveying assembly, which is used to convey the printing medium. The slurry filtering assembly includes a filter screen unit for permeating printing paste into the printing medium. The method includes: acquiring the operating state of the printing press, which includes a printing job waiting state; if the printing press is in the printing job waiting state, controlling the slurry filtering assembly to lift to a first preset position; after determining that the slurry filtering assembly has been lifted to the first preset position, controlling the filter screen unit to rotate around the central axis of the slurry filtering assembly at a first rotational speed. This control method, by acquiring the operating state of the printing press and, when the printing press is in the printing job waiting state, controlling the slurry filtering assembly to lift to a preset position and controlling the filter screen unit to rotate around the central axis of the slurry filtering assembly at a preset rotational speed, can prevent residual printing paste in the filter screen unit from permeating and dripping onto the printing medium, thereby reducing waste of the printing medium and lowering production costs.

[0112] In some embodiments, the operating state of the printing press also includes a printing job execution state. When the printing press is in the printing job execution state, the printing press is pressed down to a second preset position and performs related actions at the second preset position to complete the printing of the pattern or design.

[0113] Specifically, in some embodiments, the printing press control method further includes, but is not limited to, the following steps S400-S500:

[0114] S400: If the printing press is in the printing job execution state, control the filter assembly to press down to the second preset position, wherein when the filter assembly is pressed down to the second preset position, the filter unit is in contact with the medium to be printed.

[0115] Specifically, the printing press acquires printing control data through sensors or other detection devices and sends this data to the controller. Upon receiving the printing control data, the controller analyzes and interprets it to determine the current operating state of the printing press.

[0116] In some embodiments, if by parsing the printing control data, it is determined that data such as the flow rate of printing paste and the operating speed of the conveying components in the printing press are within the threshold range corresponding to the printing job execution state, then it indicates that the printing press has entered the working state, and it can be determined that the printing press is in the printing job execution state.

[0117] After confirming that the printing press is in the printing job execution state, the printing press controls the filter assembly to press down via the controller. During the pressing process, sensors or other detection devices detect whether the filter assembly has been pressed down to the second preset position, thereby achieving the pressing of the filter assembly to the second preset position. It should be understood that when the filter assembly is pressed down to the second preset position, the filter unit is in contact with the medium to be printed, thereby allowing the printing paste in the filter unit to penetrate and coat the medium to be printed.

[0118] For example, Figure 2 When the filter assembly shown in the embodiment is pressed down to the second preset position, the filter unit is in contact with the medium to be printed. Then, the controller coordinates the operation speed of the conveying assembly and the filter assembly to spread the printing paste in the filter unit through the mesh of the filter unit onto the medium to be printed.

[0119] In some embodiments, after controlling the slurry assembly to press down, it is necessary to detect and determine whether the slurry assembly has been pressed down to a second preset position and whether the conveying assembly is in normal operating condition. This allows the filter screen unit to be controlled to rotate around the central axis of the slurry assembly at a second rotational speed after it is determined that the slurry assembly has been pressed down to the second preset position and that the conveying assembly is in normal operating condition.

[0120] Specifically, in some embodiments, after the filter assembly is pressed down, the printing press control method further includes, but is not limited to, the following steps S450-S460:

[0121] S450: If the absolute value of the difference between the vertical downward movement height of the filter slurry assembly and the preset pressing height is less than or equal to the second preset threshold, then the filter slurry assembly is determined to be pressed down to the second preset position.

[0122] S460: Otherwise, confirm that the filter assembly has not been pressed down to the second preset position.

[0123] The second preset position is the height at which the filter assembly adheres to the printing medium. It can be understood that when the first and second preset positions are predetermined, the height distance between them can be calculated, and this distance is the preset downward pressure height. That is, when the filter assembly is at the second preset position, the distance between the filter assembly and the first preset position is the preset downward pressure height.

[0124] During the process of pressing the slurry filter assembly from the first preset position to the second preset position, the slurry filter assembly needs to be pressed down by a preset pressing height (that is, the vertical downward movement of the slurry filter assembly is the preset pressing height) so that the slurry filter assembly moves to the second preset position.

[0125] Specifically, during the process of pressing the filter slurry assembly down to the second preset position, the vertical downward movement height of the filter slurry assembly is detected in real time by a sensor or other detection device. Then, this vertical distance is compared with the preset pressing height, and the second distance difference between the two is calculated. The absolute value of the second distance difference is then obtained.

[0126] Then, the absolute value of the second distance difference is compared with the second preset threshold to determine the relationship between the absolute value of the second distance difference and the second preset threshold, thereby determining whether the filter slurry assembly has been pressed down to the second preset position.

[0127] If the absolute value of the second distance difference is less than or equal to the second preset threshold, it indicates that the slurry filter assembly has been pressed down to the vicinity of the second preset position or the second preset position, and it can be determined that the slurry filter assembly has been pressed down to the second preset position.

[0128] Otherwise, if the absolute value of the second distance difference is greater than the second preset threshold, it can be determined that the filter slurry assembly has not been pressed down to the second preset position.

[0129] It should be understood that the second preset threshold can be set and determined according to actual usage. For example, the second preset threshold can be set to 0.5mm, that is, when the absolute value of the second distance difference is less than or equal to 0.5mm, it is determined that the filter slurry assembly has been pressed down to the second preset position. When the absolute value of the second distance difference is greater than 0.5mm, it is determined that the filter slurry assembly has not been pressed down to the second preset position.

[0130] In some embodiments, after the filter assembly is pressed down, the printing press control method further includes, but is not limited to, the following steps S470-S490:

[0131] S470: Obtain the operating status of the conveying component, including the normal operating status.

[0132] Specifically, the operating status of the conveying component is detected and determined in real time by sensors or other detection devices installed on the conveying component. For example, in some embodiments, the operating status of the conveying component is monitored and obtained in real time by its own electronic control unit or programmable logic controller, thereby determining whether the conveying component is in normal operating condition.

[0133] In some other embodiments, the current working state of the conveying component can be determined by an indicator of the conveying component's working status (such as an indicator light or a display screen), thereby determining whether the conveying component is in normal operating condition.

[0134] The operating status of the conveying component includes normal operation. The operating status of the conveying component can be detected using sensors or other detection devices, thereby determining whether the conveying component is in normal operation.

[0135] S480: If the conveying component is in normal operation, determine that the conveying component moves horizontally in a straight line at a preset operating speed.

[0136] S490: Otherwise, determine that the conveyor assembly is not moving horizontally in a straight line at the preset operating speed.

[0137] Specifically, if sensors or other detection devices determine that the conveyor assembly is in normal operating condition, indicating that the printing press is performing normal printing work, then it is determined that the conveyor assembly is moving horizontally in a straight line at a preset operating speed. For example, Figure 2 The conveying assembly shown in the embodiment is moving horizontally in a first direction at a preset operating speed V4. After the slurry assembly is pressed down to a second preset position, the filter screen unit is controlled to rotate around the central axis of the slurry assembly at a second rotational speed V2.

[0138] Otherwise, if the detection determines that the conveyor assembly is not in normal operating condition, indicating that the printing press is not performing normal printing work, then it is determined that the conveyor assembly is not moving horizontally in a straight line at the preset operating speed.

[0139] S500: After determining that the slurry filter assembly is pressed down to the second preset position and that the conveying assembly is moving horizontally in a straight line at a preset operating speed, the filter screen unit is controlled to rotate around the central axis of the slurry filter assembly at a second rotational speed.

[0140] Specifically, the printing press uses various sensors or other detection devices to detect and determine whether the filter pulp assembly has been pressed down to a second preset position, and whether the conveying assembly is moving horizontally in a predetermined direction at a preset operating speed. For example, a pressure sensor is installed at the second preset position; if the pressure sensor detects a normal pressure signal from the filter pulp assembly, it can be determined that the filter pulp assembly has been pressed down to the second preset position. A speed sensor is also installed on the conveying assembly to detect and determine whether the conveying assembly is moving horizontally in a predetermined direction at a preset operating speed.

[0141] After determining that the filter assembly is pressed down to the second preset position and that the conveying assembly is moving horizontally in a straight line at a preset running speed, the printing press controls the drive device such as the motor or hydraulic system through the controller, adjusts the speed of the motor or the pressure of the hydraulic system, adjusts the rotation speed to the second rotation speed, and then controls the drive device such as the motor or hydraulic system to rotate at the second rotation speed in the set rotation direction, so as to drive the filter assembly to rotate at the second rotation speed, thereby driving the filter screen unit to rotate around the central axis of the filter assembly at the second rotation speed, thus realizing the control of the filter screen unit to rotate around the central axis of the filter assembly at the second rotation speed.

[0142] It should be understood that both the second rotational speed and the preset operating speed can be predetermined based on the design and operational requirements of the printing press. For example, Figure 2 The conveying component shown in the embodiment is moving horizontally in a straight line along the first direction at a preset operating speed V4; after the slurry assembly is pressed down to the second preset position, the filter screen unit is controlled to rotate around the central axis of the slurry assembly at a second rotational speed V2.

[0143] In some embodiments, the second rotational speed can be 8-12 rpm (8-12 revolutions per minute). For example, a second rotational speed of 10 rpm controls the filter screen unit to rotate around the central axis of the slurry assembly at a rotational speed of 10 revolutions per minute. In other embodiments, the second rotational speed can also be other rotational speeds, and the embodiments of the present invention do not limit this to any particular speed.

[0144] In this embodiment, when the printing job execution state of the printing press is determined, the filter assembly is pressed down to the second preset position, and then the screen unit is controlled to rotate around the central axis of the filter assembly at a second rotational speed, while the running speed of the conveying assembly is controlled in coordination to convey the printing medium. Thus, the printing paste in the screen unit penetrates and coats the printing medium through the mesh of the screen unit, quickly and stably completing the printing of patterns or designs.

[0145] In some embodiments, after controlling the slurry assembly to press down, it is necessary to detect and determine whether the slurry assembly has been pressed down to a second preset position and whether the conveying assembly is in normal operating condition. If it is detected that the slurry assembly has not been pressed down to the second preset position, and / or the conveying assembly is not in normal operating condition, it indicates a malfunction in the slurry assembly pressing down or a malfunction in the conveying assembly, and a warning message is issued to notify the operator to handle the situation.

[0146] Specifically, in some embodiments, after the filter assembly is pressed down, the printing press control method further includes, but is not limited to, the following step S600:

[0147] S600: If the slurry filter assembly is not pressed down to the second preset position, and / or the conveying assembly is not moving horizontally in a straight line at the preset operating speed, a warning reminder will be issued.

[0148] Specifically, if the detection determines that the filter slurry assembly has not been pressed down to the second preset position, and / or the detection determines that the conveying assembly has not moved horizontally in a straight line at a preset operating speed, it indicates that the filter slurry assembly has malfunctioned in pressing down, and / or the conveying assembly has malfunctioned in transporting the printing medium, and an early warning reminder is issued.

[0149] It is easy to understand that early warning alerts can be issued through methods such as alarm lights, audible alarms, display screen information, or remote message notifications. In some embodiments, abnormal events can also be recorded, including the time of occurrence, the specific abnormal situation, and possible causes, which is beneficial for subsequent fault diagnosis and maintenance work.

[0150] In summary, the printing press control method provided by the embodiments of the present invention includes a printing press comprising a slurry filtering assembly and a conveying assembly, wherein the slurry filtering assembly is disposed above the conveying assembly, and the conveying assembly is used to convey the medium to be printed; the slurry filtering assembly includes a filter screen unit, which is used to permeate printing slurry into the medium to be printed; the method includes: acquiring the working state of the printing press, wherein the working state of the printing press includes a printing job waiting state; if the printing press is in the printing job waiting state, controlling the slurry filtering assembly to lift up to a first preset position; after determining that the slurry filtering assembly has been lifted up to the first preset position, controlling the filter screen unit to rotate around the central axis of the slurry filtering assembly at a first rotational speed.

[0151] This control method acquires the working status of the printing press and, when the printing press is in a printing job waiting state, controls the filter assembly to be raised to a preset position and controls the screen unit to rotate around the central axis of the filter assembly at a preset rotation speed. This prevents residual printing paste in the screen unit from seeping and dripping onto the printing medium, thereby reducing waste of the printing medium and lowering production costs.

[0152] This invention provides a computer-readable storage medium storing computer program instructions. When invoked by a processor, the computer program instructions cause the processor to execute any printing press control method provided in this invention, or any possible implementation of any printing press control method provided in this invention.

[0153] In some embodiments, the storage medium may be a flash memory, a hard disk, an optical disk, a register, a magnetic surface memory, a removable disk, a CD-ROM, a random access memory (RAM), a read-only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, or any other form of storage medium known in the art, or various devices including one or any combination of the above storage media.

[0154] In some embodiments, computer program instructions may take the form of programs, software, software modules, scripts, or code, written in any form of programming language (including compiled or interpreted languages, or declarative or procedural languages), and may be deployed in any form, including as stand-alone programs or as modules, components, subroutines, or other units suitable for use in a computing environment.

[0155] As an example, computer program instructions may, but do not necessarily, correspond to files in a file system, and may be stored as part of a file that holds other programs or data, for example, in one or more scripts in a Hyper Text Markup Language (HTML) document, in a single file dedicated to the program in question, or in multiple collaborative files (e.g., a file that stores one or more modules, subroutines, or code sections).

[0156] As an example, computer program instructions can be deployed to execute on a single computing device (including devices such as smart terminals and servers), or on multiple computing devices located in one location, or on multiple computing devices distributed across multiple locations and interconnected via a communication network. It is readily understood that all or part of the steps of the methods described in the embodiments of the present invention above can be implemented directly using electronic hardware or processor-executable computer program instructions, or a combination of both.

[0157] Those skilled in the art will understand that the embodiments provided by this invention are merely illustrative. The order in which the steps in the methods of the embodiments are written does not imply a strict execution order and does not constitute any limitation on the implementation process. The order can be adjusted, merged, and deleted according to actual needs. Modules or sub-modules, units, or sub-units in the apparatus or system of the embodiments can be merged, divided, and deleted according to actual needs. For example, the division of units is merely a logical functional division, and there may be other division methods in actual implementation. For another example, multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed.

[0158] Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented using software and a general-purpose hardware platform, or it can be implemented using hardware. Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. This computer program can be stored in a computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), or random access memory (RAM), etc.

[0159] It should be noted that the above embodiments are for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. Those skilled in the art can understand that all or part of the processes of the above embodiments can be implemented by modifying the technical solutions described in the embodiments of the present invention, or by making equivalent substitutions for some of the technical features. It is understood that these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and should be considered as equivalent changes and modifications made based on the embodiments of the present invention, all of which should fall within the scope of the claims of the present invention.

Claims

1. A printing press control method, characterized in that, The printing press includes a slurry filtering assembly and a conveying assembly. The slurry filtering assembly is disposed above the conveying assembly, and the conveying assembly is used to convey the printing medium. The slurry filtering assembly includes a filter screen unit for permeating printing paste into the printing medium. The method includes: The working status of the printing press is obtained, wherein the working status of the printing press includes a printing job waiting status; If the printing press is in the printing job waiting state, control the filter assembly to lift it to a first preset position; After determining that the slurry filter assembly has been raised to the first preset position, the filter screen unit is controlled to rotate around the central axis of the slurry filter assembly at a first rotational speed.

2. The printing press control method according to claim 1, characterized in that, After the slurry filter assembly is raised, the method further includes: If the absolute value of the difference between the vertically upward running height of the filter assembly and the preset lifting height is less than or equal to a first preset threshold, then it is determined that the filter assembly is lifted to the first preset position. Otherwise, it is determined that the filter assembly has not been raised to the first preset position.

3. The printing press control method according to claim 1, characterized in that, If the printing press pauses or terminates printing, it is determined that the printing press is in a printing job waiting state.

4. The printing press control method according to any one of claims 1-3, characterized in that, The first rotational speed is 1-6 rpm.

5. The printing press control method according to claim 1, characterized in that, The operating status of the printing press also includes a printing job execution status, and the method further includes: If the printing press is in the printing job execution state, the filter assembly is controlled to be pressed down to a second preset position, wherein when the filter assembly is pressed down to the second preset position, the filter screen unit is in contact with the medium to be printed; After determining that the slurry filter assembly is pressed down to the second preset position and that the conveying assembly is moving horizontally in a straight line at a preset operating speed, the filter screen unit is controlled to rotate around the central axis of the slurry filter assembly at a second rotational speed.

6. The printing press control method according to claim 5, characterized in that, After controlling the downward pressure of the filter slurry assembly, the method further includes: If the absolute value of the difference between the vertical downward movement height of the filter slurry assembly and the preset downward pressure height is less than or equal to the second preset threshold, then it is determined that the filter slurry assembly has been pressed down to the second preset position. Otherwise, it is determined that the filter assembly has not been pressed down to the second preset position.

7. The printing press control method according to claim 6, characterized in that, After controlling the downward pressure of the filter slurry assembly, the method further includes: The working status of the conveying component is obtained, wherein the working status of the conveying component includes a normal operating status; If the conveying component is in the normal operating state, then it is determined that the conveying component is moving horizontally in a straight line at a preset operating speed; Otherwise, it is determined that the conveying component is not moving horizontally in a straight line at a preset operating speed.

8. The printing press control method according to claim 7, characterized in that, The method further includes: If the slurry filter assembly is not pressed down to the second preset position, and / or the conveying assembly is not moving horizontally in a straight line at the preset operating speed, a warning reminder will be issued.

9. A printing press, characterized in that, include: A controller, and a slurry filter assembly and a conveying assembly respectively communicated with the controller, the slurry filter assembly being disposed above the conveying assembly, the controller being used to control the slurry filter assembly and the conveying assembly, the conveying assembly being used to convey the printing medium; The slurry assembly includes a filter screen unit, which is used to permeate printing slurry into the printing medium. The controller includes: A processor, and a memory communicatively connected to the processor; The memory stores computer program instructions executable by the processor, which, when invoked by the processor, cause the processor to perform the printing press control method according to any one of claims 1-8.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores processor-executable computer program instructions, which, when invoked by the processor, cause the processor to perform the printing press control method according to any one of claims 1-8.

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