A printing press control method and a printing press

Abstract

This invention relates to the field of digital printing technology, and more particularly to a printing press control method and a printing press. The printing press includes a conveying unit and a first filter unit disposed above the conveying unit. The conveying unit is used to convey the printing medium, and the first filter unit is used to permeate printing paste into the printing medium. The method includes: controlling the conveying unit to move along a first direction at a first operating speed; controlling the speed of the first filter unit in the first direction to be a second operating speed, wherein the first operating speed and the second operating speed differ by a speed value. This control method, by controlling the conveying unit and the first filter unit to have different operating speeds in the first direction, enables the printing paste to permeate evenly into the printing medium, improving the permeability and uniformity of the printing paste, and enhancing printing quality.

Description

Technical Field

[0001] This invention relates to the field of digital printing technology, and in particular to a printing press control method and a printing press. 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 through the mesh holes to the surface of the fabric to be printed, ready for subsequent image processing.

[0003] However, this method of synchronizing the linear velocity of the nickel mesh with the movement speed of the fabric to be printed on the conveyor belt (i.e., the relative speed between the linear velocity of the nickel mesh and the movement speed of the fabric to be printed on the conveyor belt remains constant) to allow the paste to penetrate the fabric to be printed, results in inconsistent penetration and uniformity of the paste in the areas of the fabric to be printed located below the mesh openings of the nickel mesh. In contrast, the penetration in areas of the fabric to be printed not located below the mesh openings of the nickel mesh is shallower and uneven. This leads to inconsistent penetration and uniformity of the paste in different areas of the same fabric to be printed, affecting the quality of the fabric and hindering subsequent image processing. Summary of the Invention

[0004] In view of this, embodiments of the present invention provide a printing press control method and a printing press. The method controls the conveying unit and the first filter unit to have different running speeds in the first direction, so that the printing paste can be uniformly penetrated into the printing medium, thereby improving the penetration and uniformity of the printing paste and improving the printing quality.

[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 conveying unit and a first filter unit disposed above the conveying unit, the conveying unit being used to convey a medium to be printed, and the first filter unit being used to permeate printing paste into the medium to be printed;

[0007] The method includes:

[0008] The conveying unit is controlled to move along a first direction at a first operating speed;

[0009] The speed of the first filter unit in the first direction is controlled to be a second operating speed, wherein the first operating speed and the second operating speed differ by a speed value.

[0010] In some embodiments, the printing press further includes a first driving unit and a second driving unit. The second driving unit includes a first filter shaft, and the first filter unit is disposed on the first filter shaft. The second driving unit is used to drive the first filter shaft to rotate so as to drive the first filter unit to rotate. The first driving unit is used to drive the second driving unit to move linearly along the first direction.

[0011] Controlling the speed of the first filter unit in the first direction to a second operating speed includes:

[0012] The second drive unit is controlled to drive the first filter shaft to rotate at a first rotational speed, thereby driving the first filter unit to rotate at the first rotational speed;

[0013] Multiply the first rotational speed by the rotational radius of the first filter unit to obtain the first tangential speed of the first filter unit;

[0014] The first driving unit is controlled to drive the second driving unit to move linearly along the first direction at a third operating speed, wherein the second operating speed is the sum of the third operating speed and the first tangential speed.

[0015] In some embodiments, the method further includes:

[0016] The first preset rotation speed and the first preset adjustment speed of the first filter unit are obtained, and the first operating speed of the conveying unit is obtained;

[0017] The first rotation speed is obtained based on the first preset rotation speed and the first preset adjustment speed;

[0018] The third operating speed is obtained based on the first preset rotation speed and the first operating speed.

[0019] In some embodiments, obtaining the first preset rotation speed and the first preset adjustment speed of the first filter unit, and obtaining the first operating speed of the conveying unit, includes:

[0020] The first printing mode currently in which the printing press is located is obtained, wherein the first printing mode includes a first preset rotation speed and a first preset adjustment speed of the first filter unit, and a first operating speed of the conveying unit;

[0021] Based on the first printing mode, the first preset rotation speed and the first preset adjustment speed of the first filter unit, as well as the first operating speed of the conveying unit, are determined.

[0022] In some embodiments, obtaining the first rotation speed based on the first preset rotation speed and the first preset adjustment speed includes:

[0023] Multiply the first preset rotational speed by the rotational radius of the first filter unit to obtain the first preset tangential speed of the first filter unit;

[0024] The first preset tangential speed is added to the first preset adjustment speed to obtain the first tangential speed of the first filter unit;

[0025] The first rotational speed is obtained by dividing the first tangential velocity by the rotation radius of the first filter unit.

[0026] In some embodiments, obtaining the third operating speed based on the first preset rotation speed and the first operating speed includes:

[0027] Multiply the first preset rotational speed by the rotational radius of the first filter unit to obtain the first preset tangential speed of the first filter unit;

[0028] The third operating speed is obtained by subtracting the first operating speed from the first preset tangential speed.

[0029] In some embodiments, the printing press further includes a second filter unit disposed above the conveying unit, the second filter unit being used to permeate printing paste into the printing medium;

[0030] The method further includes:

[0031] The speed of the second filter unit in the first direction is controlled to be a fourth operating speed, wherein the first operating speed and the fourth operating speed differ by a speed value, and the fourth operating speed is the same as or different from the second operating speed.

[0032] In some embodiments, the printing press further includes a third drive unit, the third drive unit including a second filter shaft, the second filter unit being disposed on the second filter shaft, the third drive unit being used to drive the second filter shaft to rotate, thereby causing the second filter unit to rotate, and the first drive unit being further used to drive the third drive unit to move linearly along the first direction;

[0033] When controlling the first drive unit to drive the second drive unit and the third drive unit to move linearly along the first direction at a third operating speed, controlling the speed of the second filter unit in the first direction to be a fourth operating speed includes:

[0034] The third drive unit is controlled to drive the second filter shaft to rotate at a second rotational speed, thereby driving the second filter unit to rotate at the second rotational speed;

[0035] Multiply the second rotational speed by the rotational radius of the second filter unit to obtain the second tangential speed of the second filter unit;

[0036] The fourth operating speed is the sum of the third operating speed and the second tangential speed.

[0037] In a second aspect, embodiments of the present invention provide a printing press, comprising:

[0038] The system comprises a first filter unit, a controller, and a conveying unit, a first driving unit, and a second driving unit that are respectively communicatively connected to the controller. The controller is used to control the conveying unit, the first driving unit, and the second driving unit. The conveying unit is used to convey the medium to be printed.

[0039] The second drive unit includes a first filter shaft, the first filter unit is disposed on the first filter shaft and located above the conveying unit, and the first filter unit is used to permeate printing paste into the printing medium;

[0040] The second drive unit is used to drive the first filter shaft to rotate, so as to drive the first filter unit to rotate.

[0041] The first driving unit is used to drive the second driving unit to move linearly along a first direction;

[0042] The controller includes:

[0043] A processor, and a memory communicatively connected to the processor;

[0044] 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.

[0045] In some embodiments, the printing press further includes:

[0046] The second filter unit and the third drive unit communicatively connected to the controller, wherein the controller is also used to control the third drive unit;

[0047] The third drive unit includes a second filter shaft, the second filter unit is disposed on the second filter shaft and located above the conveying unit, and the second filter unit is used to permeate printing paste into the medium to be printed;

[0048] The third drive unit is used to drive the second filter shaft to rotate, so as to drive the second filter unit to rotate.

[0049] The first driving unit is also used to drive the third driving unit to move linearly along the first direction.

[0050] The beneficial effects of the embodiments of the present invention are as follows: Unlike the prior art, the printing press control method provided by the embodiments of the present invention includes a printing press comprising a conveying unit and a first filter unit disposed above the conveying unit. The conveying unit is used to convey a medium to be printed, and the first filter unit is used to permeate printing paste into the medium to be printed. The method includes: controlling the conveying unit to move along a first direction at a first operating speed; controlling the speed of the first filter unit in the first direction to be a second operating speed, wherein the first operating speed and the second operating speed differ by a speed value.

[0051] In this embodiment, the control method controls the conveying unit and the first filter unit to have different running speeds in the first direction, so that the printing paste can penetrate evenly into the printing medium, thereby improving the penetration and uniformity of the printing paste and enhancing the printing quality. Attached Figure Description

[0052] 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.

[0053] Figure 1 This is a schematic diagram illustrating application scenarios of the printing press control method provided in some embodiments of the present invention;

[0054] Figure 2 These are schematic diagrams of the printing press provided in some embodiments of the present invention;

[0055] Figure 3 This is a schematic diagram of the structure of the controller in a printing press provided in some embodiments of the present invention;

[0056] Figure 4 This is a schematic flowchart of a printing press control method provided in some embodiments of the present invention;

[0057] Figure 5 yes Figure 4 A schematic diagram of a sub-process of step S200 in the printing press control method shown in the embodiment.

[0058] Explanation of reference numerals in the attached figures:

[0059] 10 Conveying unit 200 Printing media 20 First filter unit V11 First running speed 30 Second filter unit V12 Second operating speed 40 First drive unit V13 Third operating speed 50 Second drive unit V14 Fourth operating speed 51 First filter shaft V21 First rotational speed 60 Third drive unit V22 Second rotational speed 61 Second filter shaft Detailed Implementation

[0060] 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.

[0061] 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.

[0062] 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.

[0063] Please see Figure 1 , Figure 1 This is a schematic diagram illustrating an application scenario of the printing press control method provided in some embodiments of the present invention.

[0064] like Figure 1As shown, the application scenario includes a printing press 100 and a printing medium 200. The printing press 100 includes a conveying unit 10 and a first filter unit 20. Specifically, the first filter unit 20 is positioned above the conveying unit 10, which conveys the printing medium 200. During printing of patterns or designs, printing paste required for printing is added to the first filter unit 20 via an auxiliary feeding device (e.g., a funnel). The first filter unit 20 is used to permeate the printing paste into the printing medium 200, thus permeating the added printing paste into the printing medium 200.

[0065] 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 unit 10 and the first filter unit 20, respectively. The controller is used to control the operating speed of the conveying unit 10 and the first filter unit 20 to permeate the printing paste into the printing medium 200.

[0066] Understandably, Figure 1 The application scenario shown is merely an illustration of one situation where the printing press 100 permeates printing paste into the printing medium 200 to perform pattern or graphic printing. It does not impose any limitations on the number, type, components, or connection relationships of the printing press 100 in other application scenarios. For example, in some other application scenarios, the printing press 100 may also include a second filter unit 30, through which the printing paste is permeated into the printing medium 200 multiple times.

[0067] In some embodiments, the printing press 100 may further include a printing device 80, which is disposed at the lower station of the first filter unit 20 or the second filter unit 30. After the first filter unit 20 is controlled to permeate printing paste into the printing medium 200, the printing device 80 prints the pattern or design onto the printing medium 200 which has been permeated with printing paste, thereby completing the printing of the pattern or design on the printing medium 200.

[0068] To facilitate understanding of the printing press control method provided in the embodiments of the present invention, the printing press provided in the embodiments of the present invention will first be described in detail.

[0069] Please see Figure 2 , Figure 2 This is a schematic diagram of the structure of a printing press 100 provided in some embodiments of the present invention.

[0070] like Figure 2As shown, the printing press 100 includes: a conveying unit 10, a first filter unit 20, a second filter unit 30, a first drive unit 40, a second drive unit 50, a third drive unit 60, and a controller 70. The controller 70 (… Figure 1 (Not shown) is communicatively connected to the conveying unit 10, the first drive unit 40, the second drive unit 50, and the third drive unit 60, respectively. The controller 70 is used to control the conveying unit 10, the first drive unit 40, the second drive unit 50, and the third drive unit 60.

[0071] Please refer to the following: Figure 1 Specifically, the first filter unit 20 and the second filter unit 30 are disposed above the conveying unit 10, which is used to convey the printing medium 200. Both the first filter unit 20 and the second filter unit 30 are used to permeate printing paste into the printing medium 200. In some embodiments, the conveying unit 10 may include a conveyor belt, a drive motor, and a drive shaft, etc., to work together to complete the conveying of the printing medium 200.

[0072] Understandably, in order to allow printing paste to penetrate the printing medium 200, the first filter unit 20 and the second filter unit 30 are configured as cylindrical, and the printing paste is penetrated and coated onto the printing medium 200 through the cylindrical surfaces of the first filter unit 20 and the second filter unit 30.

[0073] The second drive unit 50 includes: a first filter shaft 51 and a first drive motor. Figure 1 (Not shown in the image), the third drive unit 60 includes: a second filter shaft 61 and a second drive motor (…). Figure 1 (Not shown in the image). Specifically, the first filter unit 20 is disposed on the first filter shaft 51, which is connected to the output end of the first drive motor via a mechanical transmission device (e.g., gears, belts, chains, etc.) or a direct connection. The second filter unit 30 is disposed on the second filter shaft 61, which is connected to the output end of the second drive motor via a mechanical transmission device (e.g., gears, belts, chains, etc.) or a direct connection.

[0074] In some embodiments, the first filter unit 20 and the second filter unit 30 can both be printing paste penetration devices such as nickel screens, the first filter shaft 51 and the second filter shaft 61 can both be transmission devices such as drive shafts and drive shafts, and the first drive motor and the second drive motor can both include one or more of devices such as rotary motors, servo motors and gear motors.

[0075] The second drive unit 50 and the third drive unit 60 drive the first filter shaft 51 and the second filter shaft 61 to rotate at a set rotation speed via the first drive motor and the second drive motor, respectively, so as to drive the first filter unit 20 and the second filter unit 30 to rotate around the central axis of the first filter shaft 51 and the second filter shaft 61, thereby allowing the first filter unit 20 and the second filter unit 30 to penetrate the printing paste into the printing medium 200.

[0076] In this embodiment of the invention, the second drive unit 50 and the third drive unit 60 are disposed on the first drive unit 40 and are connected to the first drive unit 40 respectively through a mechanical transmission device (e.g., gears, belts, chains, etc.) or a direct connection method. The first drive unit 40 is used to drive the second drive unit 50 and the third drive unit 60 to move linearly in a first direction, so as to drive the first filter unit 20 and the second filter unit 30 to move linearly in the first direction. The first drive unit 40 may include one or more of the following devices: a linear motor, a hydraulic motor, and a pneumatic motor.

[0077] It is worth noting that during the printing process, the cylindrical surfaces of the first filter unit 20 and the second filter unit 30 are in contact with the printing medium 200. When the first filter unit 20 and the second filter unit 30 rotate at a set rotational speed ω (in rad / s), assuming the rotational radius of the first filter unit 20 and the second filter unit 30 is r (in m), the tangential velocity at the contact point between the cylindrical surfaces of the first filter unit 20 and the second filter unit 30 and the printing medium 200 can be calculated as v = r * ω (in m / s). It can be understood that the tangential velocities at the contact points between the cylindrical surfaces of the first filter unit 20 and the second filter unit 30 and the printing medium 200 are both linear velocities (in m / s).

[0078] It should be understood that rotational speed can be expressed in rad / s or rpm, that is, the number of rotations per minute around a fixed point or axis. The conversion relationship between rad / s and rpm is as follows:

[0079]

[0080] Where rpm represents the number of rotations per minute, and rad / s represents the angle per second.

[0081] In some embodiments, the first direction is direction M. In other embodiments, the first direction may be other directions.

[0082] Please see Figure 3 , Figure 3 This is a schematic diagram of the structure of the controller 70 in a printing press 100 provided in some embodiments of the present invention.

[0083] like Figure 3 As shown, the controller 70 includes at least one processor 71 and a memory 72 connected in communication. Figure 3 Taking a bus system connection and a processor as an example, the various components in controller 70 are coupled together through bus system 73, which is used to realize the connection and communication between these components. It is easy to understand that bus system 73 may include, in addition to data bus, power bus, control bus, and status signal bus, etc. However, for the sake of clarity and brevity, in... Figure 3 The general designated all buses as Bus System 73. Understandably, Figure 3 The structures shown in the embodiments are merely illustrative and do not limit the structure of the controller 70 described above. For example, the controller 70 may also include components that are more... Figure 3 The more or fewer components shown, or having the same Figure 3 The different configurations shown.

[0084] Specifically, processor 71 provides computational and control capabilities to control controller 70 to perform corresponding tasks. For example, it controls controller 70 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 71 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.

[0085] The memory 72, 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 72 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 71, etc. The processor 71 executes various functional applications and data processing of the controller 70 by running the non-transitory software programs, instructions, and modules stored in the memory 72, 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 72 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 72 may also include memory remotely located relative to the processor 71, and these remote memories may be connected to the processor 71 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.

[0086] 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.

[0087] Please see Figure 4 , Figure 4 A schematic flowchart of a printing press control method provided in some embodiments of the present invention is shown.

[0088] 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.

[0089] like Figure 4 As shown, the printing press control method includes, but is not limited to, the following steps S100-S200:

[0090] S100: Control the conveying unit to move along the first direction at a first operating speed.

[0091] Specifically, the printing press adjusts the speed of the conveyor unit to a first operating speed via a controller, generates a first operating speed control command corresponding to the first operating speed, and then transmits the first operating speed control command to the conveyor unit. Upon receiving the first operating speed control command, the conveyor unit adjusts its speed to the first operating speed and moves linearly along a first direction at that speed. This achieves stable and accurate conveying of the printing medium by controlling the conveyor unit to move linearly along the first direction at the first operating speed. In this embodiment, the conveyor unit is a conveyor belt, and the printing medium is fabric. The fabric is adhered to the horizontal surface of the conveyor belt with a certain strength through the belt adhesive, so the operating speed of the printing medium is the same as the operating speed of the conveyor belt, which is also the first operating speed.

[0092] In this embodiment of the invention, after determining that the control conveying unit moves linearly along the first direction at a first operating speed, the printing press controls the conveying unit to always move linearly along the first direction at the first operating speed through the controller, without changing the operating speed of the conveying unit. Here, the first operating speed is the linear velocity (unit: m / s).

[0093] S200: Control the speed of the first filter unit in the first direction to the second operating speed, wherein the first operating speed and the second operating speed differ by a speed value.

[0094] It is understandable that, since the first filter unit is cylindrical, when the first filter unit rotates at a set rotational speed, the speed of the first filter unit in the first direction is the tangential speed of the contact point between the cylindrical surface of the first filter unit and the medium to be printed along the first direction, and this tangential speed is the linear speed (in m / s).

[0095] For example, the printing press adjusts the corresponding control parameters through the controller according to the first operating speed of the conveying unit, and adjusts the speed of the first filter unit in the first direction to the second operating speed, wherein the first operating speed and the second operating speed differ by a speed value, that is, the speed magnitudes of the first operating speed and the second operating speed are different.

[0096] Then, a second operating speed control command corresponding to the second operating speed is generated and transmitted to the relevant components. Upon receiving the second operating speed control command, the relevant components adjust their operating speed or rotation speed so that the speed of the first filter unit in the first direction is the second operating speed. Thus, the speed of the first filter unit in the first direction is controlled to be the second operating speed.

[0097] In this embodiment of the invention, by controlling the speed of the first filter unit in the first direction to be a second operating speed, and the second operating speed differing from the first operating speed of the conveying unit by a speed value, the speed of the first filter unit in the first direction (i.e., the second operating speed) is not completely synchronized with the speed of the medium to be printed (i.e., the first operating speed), resulting in a slight speed difference. This causes the relationship between the medium to be printed and the cylindrical surface of the first filter unit to change from a relatively static relationship to a slight planar friction. This slight planar friction allows the printing paste that permeates through the mesh of the cylindrical surface of the first filter unit to be evenly penetrated, coated, and smoothed onto the medium to be printed, improving the permeability, uniformity, and smoothness of the printing paste in the medium, thus enhancing printing quality. The principle is similar to applying putty to a wall with a putty scraper.

[0098] Please see Figure 5 , Figure 5 A schematic diagram of a sub-process of step S200 in a printing press control method provided in some embodiments of the present invention is shown.

[0099] like Figure 5 As shown, controlling the speed of the first filter unit in the first direction to the second operating speed specifically includes, but is not limited to, the following steps S210-S230:

[0100] S210: Control the second drive unit to drive the first filter shaft to rotate at a first rotational speed, so as to drive the first filter unit to rotate at the first rotational speed.

[0101] The second drive unit includes a first filter shaft and a first drive motor. The first filter unit is disposed on the first filter shaft, and the first filter shaft is connected to the output end of the first drive motor. The second drive unit drives the first filter shaft to rotate via the first drive motor, thereby causing the first filter unit to rotate around the central axis of the first filter shaft. The first drive unit is used to drive the second drive unit to move linearly in a first direction, thereby causing the first filter unit to move linearly in the first direction.

[0102] For example, the printing press adjusts the speed of the first filter unit to a first rotational speed via a controller, generates a first rotational speed control command corresponding to the first rotational speed, and then transmits the first rotational speed control command to the second drive unit. After receiving the first rotational speed control command, the second drive unit adjusts the speed of the first filter shaft to the first rotational speed, and then drives the first filter shaft to rotate around the central axis of the first filter shaft at the first rotational speed via a first drive motor, thereby causing the first filter unit to rotate around the central axis of the first filter shaft at the first rotational speed.

[0103] S220: Multiply the first rotational speed by the rotational radius of the first filter unit to obtain the first tangential speed of the first filter unit.

[0104] For example, the tangential velocity of the contact point between the cylindrical surface of the first filter unit and the medium to be printed along the first direction is denoted as the first tangential velocity, and the first tangential velocity is the linear velocity.

[0105] Wherein, the first tangential velocity = the first rotational velocity * the rotational radius of the first filter unit. The first tangential velocity of the first filter unit is obtained by dividing the first rotational velocity of the first filter unit by its rotational radius. In this embodiment of the invention, the rotational radius of the first filter unit is the radius of the first filter shaft.

[0106] S230: Control the first drive unit to drive the second drive unit to move linearly along the first direction at a third running speed, wherein the second running speed is the sum of the third running speed and the first tangential speed.

[0107] It should be understood that the speed of the first filter unit in the first direction (i.e., the second operating speed) is the result of the joint driving of the first drive unit and the second drive unit. Therefore, the second operating speed is the sum of the third operating speed and the first tangential speed. The first drive unit corresponds to the third operating speed, and the second drive unit corresponds to the first tangential speed.

[0108] Specifically, since the first operating speed differs from the second operating speed by a certain speed value, the printing press adjusts the speed of the first drive unit to the third operating speed via the controller based on the first operating speed of the conveying unit and the first tangential speed of the first filter unit. That is, the sum of the third operating speed and the first tangential speed (i.e., the second operating speed) cannot be the same as the first operating speed of the conveying unit.

[0109] Then, a third operating speed control command corresponding to the third operating speed is generated, and the third operating speed control command is transmitted to the first drive unit. After receiving the third operating speed control command, the first drive unit adjusts its speed to the third operating speed and moves linearly along the first direction at the third operating speed, thereby driving the second drive unit to move linearly along the first direction at the third operating speed.

[0110] In some embodiments, before the printing press controls the second drive unit to drive the first filter shaft to rotate at a first rotational speed and controls the first drive unit to drive the second drive unit to move linearly along the first direction at a third operating speed, it is necessary to first obtain and determine the first rotational speed and the third operating speed.

[0111] Specifically, in some embodiments, the printing press control method further includes, but is not limited to, the following steps S300-S500:

[0112] S300: Obtain the first preset rotation speed and the first preset adjustment speed of the first filter unit, and obtain the first operating speed of the conveying unit.

[0113] The first preset rotation speed and the first preset adjustment speed of the first filter unit can be preset and stored in the controller or other storage device according to actual usage and historical experience data. When printing patterns or designs, the printing press automatically reads the first preset rotation speed and the first preset adjustment speed of the first filter unit in the controller or other storage device, and then controls the first filter unit to rotate at the corresponding speed through the controller.

[0114] Similarly, the first operating speed of the conveying unit can be preset and stored in the controller or other storage device based on actual usage and historical experience data. When performing the printing or printing work of patterns or designs, the printing press automatically reads the first operating speed of the conveying unit in the controller or other storage device, and then controls the conveying unit to run at the corresponding operating speed through the controller.

[0115] It should be understood that the first preset rotation speed and first preset adjustment speed of the first filter unit, the first running speed of the conveying unit, etc., can also be manually input parameter data. When performing the printing or printing work of patterns or designs, the operator inputs the first preset rotation speed and first preset adjustment speed of the first filter unit, and the first running speed of the conveying unit. The printing press obtains the parameter data input by the operator through the controller and controls the first filter unit to rotate at the corresponding rotation speed and controls the conveying unit to run at the corresponding running speed.

[0116] In some embodiments, obtaining a first preset operating speed and a first preset adjustment speed of the first filter shaft, and obtaining a first operating speed of the conveying unit, specifically includes, but is not limited to, the following steps S310-S320:

[0117] S310: Obtain the first printing mode currently in which the printing press is located, wherein the first printing mode includes the first preset rotation speed and the first preset adjustment speed of the first filter unit, and the first running speed of the conveying unit.

[0118] S320: Based on the first printing mode, determine the first preset rotation speed and the first preset adjustment speed of the first filter unit, as well as the first operating speed of the conveying unit.

[0119] In some embodiments, parameters such as the first preset rotation speed and first preset adjustment speed of the first filter unit, and the first operating speed of the conveying unit, can be preset and saved to a configuration file or parameter list of the printing press control system based on actual usage and historical experience data, and configured to the corresponding printing mode of the printing press. Therefore, the printing mode includes the first preset rotation speed and first preset adjustment speed of the first filter unit, and the first operating speed of the conveying unit.

[0120] It is easy to understand that the first preset adjustment speed of the first filter unit (i.e., the first filter shaft) can be 0.5mm / s-1.5mm / s. For different printing modes of the printing press, the first preset adjustment speed of the first filter unit can be the same or different, and the first preset rotation speed of the first filter unit can also be the same or different.

[0121] When performing printing or printing work on patterns or designs, after the operator selects and determines the printing mode of the printing press, the printing press obtains and determines the current first printing mode based on the selected printing mode. The first printing mode includes the first preset rotation speed and the first preset adjustment speed of the first filter unit, as well as the first running speed of the conveying unit.

[0122] After obtaining the first printing mode currently in which the printing press is located, the printing press analyzes the first printing mode to obtain the first preset rotation speed and the first preset adjustment speed of the first filter unit, as well as the first running speed of the conveying unit.

[0123] S400: Obtain the first rotation speed based on the first preset rotation speed and the first preset adjustment speed.

[0124] In some embodiments, the first rotation speed is obtained based on the first preset rotation speed and the first preset adjustment speed, specifically including but not limited to the following steps S410-S430:

[0125] S410: Multiply the first preset rotational speed by the rotational radius of the first filter unit to obtain the first preset tangential speed of the first filter unit.

[0126] It is understandable that the first preset rotational speed is the rotational speed, and the first preset adjustment speed is the linear speed.

[0127] Specifically, after obtaining the first preset operating speed and the first preset adjustment speed of the first filter unit, the first preset rotational speed is multiplied by the rotation radius of the first filter unit to obtain the first preset tangential speed of the first filter unit. That is, before adjusting the tangential speed of the first filter unit in the first direction, the first filter unit rotates at the first preset tangential speed. Here, the first preset tangential speed is a linear velocity.

[0128] S420: Add the first preset tangential speed to the first preset adjustment speed to obtain the first tangential speed of the first filter unit.

[0129] Specifically, after obtaining the first preset tangential speed of the first filter unit, the first preset tangential speed is added to the first preset adjustment speed of the first filter unit to obtain the first tangential speed of the first filter unit. That is, the tangential speed of the contact point between the first filter unit and the printing medium along the first direction is adjusted from the first preset tangential speed to the first tangential speed.

[0130] S430: Divide the first tangential velocity by the rotation radius of the first filter unit to obtain the first rotational velocity.

[0131] Specifically, after obtaining the first tangential velocity of the first filter unit, the first tangential velocity is divided by the rotation radius of the first filter unit to obtain the first rotational speed of the first filter unit. That is, the rotational motion of the first filter unit is adjusted from rotating at a first preset rotational speed to rotating at the first rotational speed.

[0132] After obtaining the first rotational speed of the first filter unit, the printing press controls the second drive unit through the controller to drive the first filter shaft to rotate at the first rotational speed, so as to drive the first filter unit to rotate at the first rotational speed, thereby making the speed of the first filter unit in the first direction the second running speed.

[0133] S500: Obtain the third operating speed based on the first preset rotation speed and the first operating speed.

[0134] In some embodiments, a third operating speed is obtained based on a first preset rotational speed and a first operating speed, specifically including but not limited to the following steps S510-S520:

[0135] S510: Multiply the first preset rotational speed by the rotational radius of the first filter unit to obtain the first preset tangential speed of the first filter unit.

[0136] Specifically, after obtaining the first preset operating speed and the first preset adjustment speed of the first filter unit, the first preset rotational speed is multiplied by the rotation radius of the first filter unit to obtain the first preset tangential speed of the first filter unit. That is, before adjusting the tangential speed of the first filter unit in the first direction, the first filter unit rotates at the first preset tangential speed. Here, the first preset tangential speed is a linear velocity.

[0137] S520: The difference between the first running speed and the first preset tangential speed is used to obtain the third running speed.

[0138] Specifically, after obtaining the first preset tangential speed of the first filter unit, the first operating speed of the conveying unit is subtracted from the first preset tangential speed to obtain the third operating speed of the first drive unit.

[0139] After obtaining the third operating speed of the first drive unit, the printing press controls the first drive unit to move linearly in the first direction at the third operating speed through the controller, thereby driving the second drive unit to move linearly in the first direction at the third operating speed, so as to drive the first filter unit to move linearly in the first direction at the third operating speed.

[0140] The printing press control method provided in this embodiment of the invention includes a printing press comprising a conveying unit and a first filter unit disposed above the conveying unit. The conveying unit is used to convey a medium to be printed, and the first filter unit is used to permeate printing paste into the medium to be printed. The method includes: controlling the conveying unit to move along a first direction at a first running speed; controlling the speed of the first filter unit in the first direction to be a second running speed, wherein the first running speed and the second running speed differ by a speed value.

[0141] In this embodiment, the control method controls the conveying unit and the first filter unit to have different running speeds in the first direction, so that the printing paste can be uniformly penetrated into the printing medium, thereby improving the permeability, uniformity and smoothness of the printing paste and improving the printing quality.

[0142] In some embodiments, the printing press may further include a second filter unit. The second filter unit is disposed above the conveying unit and is used to permeate printing paste into the printing medium. Thus, by utilizing the first and second filter units to permeate the printing paste into the printing medium twice, the permeability, uniformity, and smoothness of the printing paste can be improved.

[0143] Specifically, in some embodiments, the printing press control method further includes, but is not limited to, the following step S600:

[0144] S600: Control the speed of the second filter unit in the first direction to the fourth operating speed, wherein the first operating speed and the fourth operating speed differ by a speed value, and the fourth operating speed may be the same as or different from the second operating speed.

[0145] It is understandable that, since the second filter unit is cylindrical, when the second filter unit rotates at a set rotational speed, the speed of the second filter unit in the first direction is the tangential speed of the contact point between the cylindrical surface of the second filter unit and the medium to be printed along the first direction, and this tangential speed is the linear speed (in m / s).

[0146] For example, the printing press adjusts the corresponding control parameters through the controller according to the first operating speed of the conveying unit, and adjusts the speed of the second filter unit in the first direction to the fourth operating speed, wherein the first operating speed and the fourth operating speed differ by a speed value, that is, the speed magnitudes of the first operating speed and the fourth operating speed are different.

[0147] Then, a fourth operating speed control command corresponding to the fourth operating speed is generated and transmitted to the relevant components. Upon receiving the fourth operating speed control command, the relevant components adjust their operating speed or rotation speed so that the speed of the second filter unit in the first direction is the fourth operating speed. Thus, the speed of the second filter unit in the first direction is controlled to be the fourth operating speed.

[0148] It is understandable that the fourth operating speed is the same as or different from the second operating speed, that is, the first filter unit and the second filter unit have the same or different operating speeds in the first direction.

[0149] In some embodiments, the printing press further includes a third drive unit, which includes a second filter shaft and a second drive motor. The second filter unit is disposed on the second filter shaft, and the second filter shaft is connected to the output end of the second drive motor. The third drive unit drives the second filter shaft to rotate via the second drive motor, thereby causing the second filter unit to rotate around the central axis of the second filter shaft. The first drive unit is also used to drive the third drive unit to move linearly along a first direction, thereby causing the second filter unit to move linearly along the first direction.

[0150] Therefore, under different printing requirements, the second and third drive units can respectively drive and adjust the tangential speed of the first and second filter units in the first direction, so as to quickly and accurately penetrate the printing paste into the printing medium, improve the penetration and uniformity of the printing paste in the printing medium, and improve the printing quality.

[0151] In some embodiments, the speed of the second filter unit in the first direction is controlled to a fourth operating speed, specifically including but not limited to the following steps S610-S620:

[0152] S610: Control the third drive unit to drive the second filter shaft to rotate at the second rotational speed, so as to drive the second filter unit to rotate at the second rotational speed.

[0153] For example, the printing press adjusts the speed of the second filter unit to a second rotational speed via a controller, generates a second rotational speed control command corresponding to the second rotational speed, and then transmits the second rotational speed control command to the third drive unit. After receiving the second rotational speed control command, the third drive unit adjusts the speed of the second filter shaft to the second rotational speed, and then drives the second filter shaft to rotate around the central axis of the second filter shaft at the second rotational speed via a second drive motor, thereby causing the second filter unit to rotate around the central axis of the second filter shaft at the second rotational speed.

[0154] S620: Multiply the second rotational speed by the rotational radius of the second filter unit to obtain the second tangential speed of the second filter unit, wherein the fourth operating speed is the sum of the third operating speed and the second tangential speed.

[0155] For example, the tangential velocity of the contact point between the cylindrical surface of the second filter unit and the medium to be printed along the first direction is denoted as the second tangential velocity, and the second tangential velocity is a linear velocity.

[0156] Wherein, the second tangential velocity = the second rotational velocity * the rotational radius of the second filter unit. The second tangential velocity of the second filter unit is obtained by dividing the second rotational velocity of the second filter unit by its rotational radius. In this embodiment of the invention, the rotational radius of the second filter unit is the radius of the second filter shaft.

[0157] The third drive unit is controlled to drive the second filter shaft to rotate at a second rotational speed, thereby driving the second filter unit to rotate at the second rotational speed.

[0158] Those skilled in the art will understand that, in the process of controlling the third drive unit to drive the second filter shaft to rotate at the second rotational speed, thereby driving the second filter unit to rotate at the second rotational speed, and controlling the first drive unit to drive the second drive unit to move linearly along the first direction at the third running speed, so that the speed of the second filter unit in the first direction is the fourth running speed, it is also necessary to first obtain and determine the second preset rotational speed and the second preset adjustment speed of the second filter unit, and obtain the first running speed of the conveying unit; and then obtain the second rotational speed of the second filter unit based on the second preset rotational speed and the second preset adjustment speed.

[0159] After obtaining the second rotational speed of the second filter unit, the third drive unit is controlled to drive the second filter shaft to rotate at the second rotational speed, so as to drive the second filter unit to rotate at the second rotational speed. The first drive unit is also controlled to drive the second drive unit to move linearly along the first direction at the third running speed, so that the speed of the second filter unit in the first direction is the fourth running speed.

[0160] It is easy to understand that the second preset adjustment speed of the second filter unit (i.e., the second filter shaft) can be 0.5mm / s-1.5mm / s. For different printing modes of the printing press, the second preset adjustment speed of the second filter unit can be the same or different, and the second preset rotation speed of the second filter unit can also be the same or different.

[0161] Furthermore, the first preset adjustment speed of the first filter unit (i.e., the first filter shaft) and the second preset adjustment speed of the second filter unit (i.e., the second filter shaft) may be the same or different, and the first preset rotation speed of the first filter unit (i.e., the first filter shaft) and the second preset rotation speed of the second filter unit (i.e., the second filter shaft) may be the same or different.

[0162] It is understood that the speed control process for the second filter unit described above is similar to the speed control process for the first filter unit. For specific implementation details, please refer to the description of the foregoing embodiments, which will not be repeated here.

[0163] It should be understood that since the fourth operating speed is the sum of the third operating speed and the second tangential speed, when the fourth operating speed and the second operating speed are the same, that is, when the speeds of the first filter unit and the second filter unit are the same in the first direction, the second rotational speed and the first rotational speed are the same.

[0164] In this embodiment, a first filter unit and a second filter unit are respectively disposed on a first filter shaft and a second filter shaft. A controller controls a first drive motor and a second drive motor to drive the first filter shaft and the second filter shaft to rotate at the same or different speeds, thereby causing the first filter unit and the second filter unit to rotate at the same or different speeds, ensuring that the speeds of the first filter unit and the second filter unit are the same or different in the first direction. This allows the speeds of the first filter unit and the second filter unit to be controlled and adjusted according to different printing requirements, enabling two-stage penetration of the printing paste into the printing medium. This rapid and accurate penetration of the printing paste into the printing medium improves the permeability and uniformity of the printing paste, thus enhancing printing quality.

[0165] In summary, the printing press control method provided by this embodiment of the invention includes a conveying unit and a first filter unit disposed above the conveying unit. The conveying unit is used to convey the printing medium, and the first filter unit is used to permeate printing paste into the printing medium. The method includes: controlling the conveying unit to move along a first direction at a first operating speed; and controlling the speed of the first filter unit in the first direction to be a second operating speed, wherein the first operating speed and the second operating speed differ by a speed value. In this embodiment, by controlling the conveying unit and the first filter unit to have different operating speeds in the first direction, the printing paste can be uniformly permeated into the printing medium, improving the permeability and uniformity of the printing paste and enhancing the printing quality.

[0166] 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.

[0167] 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.

[0168] 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 first drive unit, a second drive unit, a conveying unit, and a first filter unit disposed above the conveying unit. The conveying unit is used to convey the printing medium, and the first filter unit is used to permeate printing paste into the printing medium. The second drive unit includes a first filter shaft, and the first filter unit is disposed on the first filter shaft. The second drive unit is used to drive the first filter shaft to rotate, thereby driving the first filter unit to rotate. The first drive unit is used to drive the second drive unit to move linearly along a first direction. The method includes: The conveying unit is controlled to move along a first direction at a first operating speed; Controlling the speed of the first filter unit in the first direction to a second operating speed includes: controlling the second drive unit to drive the first filter shaft to rotate at a first rotational speed, thereby causing the first filter unit to rotate at the first rotational speed; multiplying the first rotational speed by the rotational radius of the first filter unit to obtain a first tangential speed of the first filter unit; controlling the first drive unit to drive the second drive unit to move linearly along the first direction at a third operating speed, wherein the second operating speed is the sum of the third operating speed and the first tangential speed, and the first operating speed and the second operating speed differ by a speed value.

2. The method according to claim 1, characterized in that, The method further includes: The first preset rotation speed and the first preset adjustment speed of the first filter unit are obtained, and the first operating speed of the conveying unit is obtained; The first rotation speed is obtained based on the first preset rotation speed and the first preset adjustment speed; The third operating speed is obtained based on the first preset rotation speed and the first operating speed.

3. The method according to claim 2, characterized in that, The step of obtaining the first preset rotation speed and the first preset adjustment speed of the first filter unit, and obtaining the first operating speed of the conveying unit, includes: The first printing mode currently in which the printing press is located is obtained, wherein the first printing mode includes a first preset rotation speed and a first preset adjustment speed of the first filter unit, and a first operating speed of the conveying unit; Based on the first printing mode, the first preset rotation speed and the first preset adjustment speed of the first filter unit, as well as the first operating speed of the conveying unit, are determined.

4. The method according to claim 2, characterized in that, The step of obtaining the first rotation speed based on the first preset rotation speed and the first preset adjustment speed includes: Multiply the first preset rotational speed by the rotational radius of the first filter unit to obtain the first preset tangential speed of the first filter unit; The first preset tangential speed is added to the first preset adjustment speed to obtain the first tangential speed of the first filter unit; The first rotational speed is obtained by dividing the first tangential velocity by the rotation radius of the first filter unit.

5. The method according to claim 2, characterized in that, The step of obtaining the third running speed based on the first preset rotation speed and the first running speed includes: Multiply the first preset rotational speed by the rotational radius of the first filter unit to obtain the first preset tangential speed of the first filter unit; The third operating speed is obtained by subtracting the first operating speed from the first preset tangential speed.

6. The method according to claim 1, characterized in that, The printing press further includes a second filter unit disposed above the conveying unit, the second filter unit being used to permeate printing paste into the medium to be printed; The method further includes: The speed of the second filter unit in the first direction is controlled to be a fourth operating speed, wherein the first operating speed and the fourth operating speed differ by a speed value, and the fourth operating speed is the same as or different from the second operating speed.

7. The method according to claim 6, characterized in that, The printing press further includes a third drive unit, which includes a second filter shaft and a second filter unit disposed on the second filter shaft. The third drive unit is used to drive the second filter shaft to rotate, thereby driving the second filter unit to rotate. The first drive unit is also used to drive the third drive unit to move linearly along the first direction. When controlling the first drive unit to drive the second drive unit and the third drive unit to move linearly along the first direction at a third operating speed, controlling the speed of the second filter unit in the first direction to be a fourth operating speed includes: The third drive unit is controlled to drive the second filter shaft to rotate at a second rotational speed, thereby driving the second filter unit to rotate at the second rotational speed; Multiply the second rotational speed by the rotational radius of the second filter unit to obtain the second tangential speed of the second filter unit; The fourth operating speed is the sum of the third operating speed and the second tangential speed.

8. A printing press, characterized in that, include: The system comprises a first filter unit, a controller, and a conveying unit, a first driving unit, and a second driving unit that are respectively communicatively connected to the controller. The controller is used to control the conveying unit, the first driving unit, and the second driving unit. The conveying unit is used to convey the medium to be printed. The second drive unit includes a first filter shaft, the first filter unit is disposed on the first filter shaft and located above the conveying unit, and the first filter unit is used to permeate printing paste into the printing medium; The second drive unit is used to drive the first filter shaft to rotate, so as to drive the first filter unit to rotate. The first driving unit is used to drive the second driving unit to move linearly along a first direction; 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 1-7.

9. The printing press according to claim 8, characterized in that, The printing press also includes: The second filter unit and the third drive unit communicatively connected to the controller, wherein the controller is also used to control the third drive unit; The third drive unit includes a second filter shaft, the second filter unit is disposed on the second filter shaft and located above the conveying unit, and the second filter unit is used to permeate printing paste into the medium to be printed; The third drive unit is used to drive the second filter shaft to rotate, so as to drive the second filter unit to rotate. The first driving unit is also used to drive the third driving unit to move linearly along the first direction.

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