Printing device with movable printing module, equipment and control device

Abstract

The utility model provides a printing device with a movable printing module, equipment and a control device, which realize rapid and flexible adjustment of printing requirements and improve the printing continuity at the same time. Comprising at least two printing modules, and any one of the printing modules comprises one or more printing heads; and a displacement mechanism, wherein the printing module is mounted on the displacement mechanism. The displacement mechanism is configured to be capable of moving any one of the printing modules; the displacement mechanism is provided with a first interval and a second interval; the second interval is different from the first interval; the control module is configured to control the displacement mechanism to move any one printing module to be located in the first interval or the second interval, and selectively configure the printing modules to be in a working state or a non-working state; wherein at least one printing module is configured to be in a working state, and is located in the first interval; the other printing modules are configured to be in a non-working state and located in the second interval.

Description

TECHNICAL FIELD

[0001] The utility model relates to the printing field especially relates to a printing device, equipment and control device of movable printing module. BACKGROUND

[0002] The existing printing equipment usually adopts constant printing module to print, and the traditional printing equipment needs to pause printing operation during maintenance, which leads to reduced printing efficiency. At the same time, the printing equipment of the prior art cannot make quick and flexible adjustment when switching to meet different printing requirements. SUMMARY

[0003] The utility model provides a printing device, equipment and control device of movable printing module to solve the above problems of the prior art, realize the quick movement of printing requirements, and improve the continuity of printing.

[0004] In a first aspect, the utility model provides a printing device of movable printing module, which comprises:

[0005] At least two printing modules, any of which comprises one or more print heads;

[0006] and a displacement mechanism, wherein the printing module is installed on the displacement mechanism; the displacement mechanism is configured to move any of the printing modules; the displacement mechanism has a first interval and a second interval; the second interval is different from the first interval;

[0007] A control module is configured to control the displacement mechanism to move any of the printing modules to the first interval or the second interval, and to selectively configure the printing module to be in an active state or an inactive state.

[0008] Among them, at least one of the printing modules is configured to be in an active state and located in the first interval; the remaining printing modules are configured to be in an inactive state and located in the second interval.

[0009] In some embodiments, any of the printing modules further comprises an independent ink path system, and the ink path system is connected to the corresponding print head.

[0010] In some embodiments, the displacement mechanism comprises a first path and a driving unit; the printing modules are sequentially installed and arranged on the first path and can move along the first path between the first interval and the second interval under the driving of the driving unit.

[0011] In some embodiments, the displacement mechanism has at least one second interval, and one second interval can accommodate one less than the total number of the printing modules.

[0012] In some embodiments, the displacement mechanism has at least two second intervals, the first interval is disposed in the middle of the first path, and the two second intervals are disposed at the two ends of the first path.

[0013] In some embodiments, the displacement mechanism comprises a first path, a second path and a driving unit connected to each other;

[0014] When the printing module is in the first interval, it is sequentially installed and arranged on the first path;

[0015] When the printing module is in the second interval, it is sequentially installed and arranged on the second path;

[0016] Any of the printing modules can move along the first path and the second path, and be driven by the driving unit to move between the first interval and the second interval.

[0017] In some embodiments, the control module comprises a sensor disposed on the displacement mechanism and configured to detect the position of the printing module.

[0018] In some embodiments, it further comprises a cleaning mechanism disposed in the second interval and configured to clean the printing module in the non-working state.

[0019] In some embodiments, it further comprises a detection mechanism disposed in the second interval and configured to detect the fault of the printing module in the non-working state.

[0020] In a second aspect, a printing device with movable printing modules is applied to print a substrate, comprising: a printing device as described in the first aspect, comprising at least two printing modules, any of the printing modules comprising one or more print heads; and a displacement mechanism, the at least two printing modules, any of the printing modules comprising one or more print heads; and the displacement mechanism, the printing modules being mounted on the displacement mechanism; the displacement mechanism being configured to move any of the printing modules; the displacement mechanism having a first zone and a second zone; the second zone being different from the first zone; a control module being configured to control the displacement mechanism to move any of the printing modules to be located in the first zone or the second zone, and to selectively configure the printing modules to be in an active state or an inactive state; wherein at least one of the printing modules is configured to be in the active state and is located in the first zone; and the rest of the printing modules are configured to be in the inactive state and are located in the second zone.

[0021] a printing platform to support the substrate;

[0022] and a maintenance platform mounted outside the edge of the printing platform;

[0023] wherein the printing platform and the first zone have partial or full spatial overlap, and the second zone and the maintenance platform have partial or full spatial overlap.

[0024] In a third aspect, a control device is applied to the displacement mechanism and the printing modules as described in the first aspect, wherein any of the printing modules comprises one or more print heads; the printing modules are mounted on the displacement mechanism; the displacement mechanism is configured to move any of the printing modules; the displacement mechanism has a first zone and a second zone; the second zone is different from the first zone; the control device comprises:

[0025] a receiving unit for receiving a control instruction;

[0026] a control unit for responding to the control instruction, the control module can control the displacement mechanism to move any of the printing modules, and selectively configure the printing modules to be in an active state or an inactive state; at least one of the printing modules is configured to be in the active state to form an operation unit group, and the operation unit group is located in the first zone; the rest of the printing modules are configured to be in the inactive state and are located in the second zone; the second zone is different from the first zone.

[0027] After adopting the above structure, the present application has the following advantages compared with the prior art:

[0028] The utility model discloses a control at least two printing module is located first interval or second interval, and the printing module is in working condition or non - working condition with optional configuration, realized the quick flexible adjustment to printing demand, and can execute printing operation and maintenance simultaneously, need not suspend entire printing operation, effectively promoted the continuity of printing and reduced the influence of maintenance to production. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is the structure diagram of the embodiment one of the utility model.

[0030] Figure 2 It is the structure diagram of the printing module 1 combination formation whole of one or more working states of the utility model.

[0031] Figure 3 It is the three -dimensional structure schematic diagram of the utility model.

[0032] Figure 4 It is the structure diagram of the displacement mechanism including the first path, second path and drive unit of mutual connection of another embodiment of the utility model.

[0033] Figure 5 It is the side view structure schematic diagram of one embodiment of the utility model.

[0034] 1, printing module;11, print head;2, displacement mechanism;21, first interval;22, second interval;23, first path;24, second path;3, control module; 4, connecting path;5, sensor;6, printing platform;7, maintenance platform. DETAILED DESCRIPTION

[0035] The utility model will be further described below in connection with the drawings and specific embodiment.

[0036] The maintenance of print head 2 is very necessary for maintaining the performance of printing equipment and prolonging the service life. Failure to maintain in time can lead to a decline in printing quality and increased equipment costs, as more nozzles can be permanently damaged and need to be replaced. The maintenance of print head 2 covers multiple aspects such as cleaning, calibration, detection, maintenance and replacement of consumables. For example, the cleaning of print head 2 is used to remove residues such as ink, residue accumulation from the nozzles, ensuring smooth and pure ink ejection. The detection of print head 2 is used to monitor and evaluate the performance of print head 11, so as to find and solve problems in time. The maintenance of print head 11 not only prolongs the service life of print head 11, but also maintains high-standard printing output and stability of the equipment.

[0037] Traditional printhead 11 printing devices often employ an integrated design, with the printhead 11 mounted as a single unit. This integrated design requires temporary interruption of the printing process for maintenance. Interruptions may result in incomplete print jobs, degraded print quality, or even require reprinting. Furthermore, frequent start-ups and shutdowns can cause additional wear and tear on the printing equipment.

[0038] This application aims to address maintenance needs without affecting printing continuity, providing a more flexible solution. Essentially, it employs a combination of printing modules 1 that can be flexibly disassembled into different arrangements, allowing maintenance to be performed simultaneously with printing. On one hand, printing and maintenance can be performed concurrently without pausing the entire printing operation, effectively improving printing continuity and reducing the impact of maintenance on production; on the other hand, by selectively configuring the printing modules 1 to be in an active or inactive state, rapid and flexible adjustments to printing job requirements are achieved.

[0039] This application relates to a printing device with a portable printing module 1, which can be used in digital printing, digital dyeing, and other similar fields. In particular, digital dyeing has very high requirements for the uniformity of ink printing onto the substrate and the timeliness of replacing consumables, making it crucial to improve the continuity of operations.

[0040] Example 1: As Figure 1 As shown, this application relates to a printing device with a movable printing module 1, comprising at least two printing modules 1, each of which includes one or more printheads 11; and a displacement mechanism 2, wherein the printing modules 1 are mounted on the displacement mechanism 2; the displacement mechanism 2 is configured to move any of the printing modules 1; the displacement mechanism 2 has a first interval 21 and a second interval 22; the second interval 22 is different from the first interval 21; a control module 3 is configured to control the displacement mechanism 2 to move any of the printing modules 1 to the first interval 21 or the second interval 22, and can selectively configure the printing modules 1 to be in a working state or a non-working state; wherein at least one of the printing modules 1 is configured to be in a working state and located in the first interval 21; the remaining printing modules 1 are configured to be in a non-working state and located in the second interval 22.

[0041] The printing module 1 is designed as an independent module, including a print head 11, a base support structure, a support, an ink path system and other components. The base support structure helps to install the print head 11 and ensures the stability of the nozzle during printing. The support helps to install the printing module 1 on the displacement mechanism 2, allowing the nozzle to move in a predetermined direction to achieve precise printing positioning. The print head 11 contains a plurality of nozzles, and the resolution and nozzle pitch of the print head 11 determine the printing precision. For example, the general nozzle pitch is usually only a few hundred microns. When multiple printing modules 1 are in working state at the same time, the number and configuration of the printing modules 1 will affect the printing quality and speed.

[0042] Optionally, any of the printing modules 1 further comprises an independent ink path system connected to the corresponding print head 11. The ink path system of each printing module 1 has an independent ink supply path, which can independently control the ejection of ink. This scheme is suitable for use in specific fields, for example, each printing module 1 prints a pure color ink. Since the case of printing pure color ink, how to achieve efficient ink replacement and cleaning is a technical difficulty. In this application, the printing module 1 can be directly replaced to achieve ink and color replacement, so that the printing device always has a printing module 1 in working state, and the printing module 1 that needs to be replaced is used for maintenance and cleaning.

[0043] The displacement mechanism 2 is used to accurately control the position of the printing module 1 during printing. The displacement mechanism 2 includes a first path 23 and a driving unit; the printing modules 1 are arranged in sequence on the first path 23 and can move along the first path 23 between the first interval 21 and the second interval 22 under the drive of the driving unit. The driving unit can include a servo motor and a transmission mechanism to drive the movement of the printing module 1. A speed reducer is usually used in cooperation with a servo motor to convert the high-speed rotation of the motor into low-speed movement of the displacement mechanism 2, and increase the torque to ensure the stable movement of the print head 11. The printing module 1 is installed on the displacement mechanism 2, and the displacement mechanism 2 can move the printing module 1 to the first interval 21 that can accommodate the working of the printing module 1, or can stop at the second interval 22 of the printing module 1.

[0044] Optionally, as shown in Figure 2 One or more of the printing modules 1 in working state are combined to form a whole and perform synchronous printing operations. The total ink ejection amount of the operation unit group is the sum of the ink ejection amounts of the printing modules 1 in working state. The relative positions between the printing modules 1 can form a specific print head 11 layout, and the flexible positioning of the printing modules 1 allows the configuration of the print head 11 to be adjusted in real time to adapt to different printing needs.

[0045] The control module 3 can adjust the layout of the print module 1 in real time during the printing process by precisely controlling the movement of the print module 1. In the case of multiple print modules 1 working simultaneously, the control module 3 can synchronize the actions of each print module 1, ensuring the coordination of the printing process. It can also control the movement of the print module 1 between the first and second areas. The control module 3 can dynamically adjust the arrangement of the print head 11, enabling the printing system to adapt to different printing tasks and optimize printing efficiency. The control module 3 can also start or stop the print module 1, putting it in a working or non-working state.

[0046] In addition, the control module 3 can also be equipped with a user interface, through which the operator can monitor the printing status, adjust the printing parameters, or perform fault diagnosis. The control module 3 can also record various data during the printing process, such as printing speed, printing quality, ink consumption, etc. As some embodiments, the control module 3 includes a sensor 5 arranged on the displacement mechanism and configured to detect the position of the print module 1. Based on the detected position, the position of the print module 1 can be accurately positioned and adjusted.

[0047] The first interval 21, which can be understood as the printing area, corresponds to a platform or space for placing or fixing the substrate of the printing object, such as cloth, paper, plastic, etc., so that the print head 11 can print on its surface. Often, the first interval 21 corresponds to a moving substrate conveying device, such as a conveyor belt or roller, for moving the printing object during the printing process to achieve continuous or large-scale printing operations.

[0048] The second interval 22, which can be understood as the maintenance area, is mainly used for regular maintenance and necessary repair of the print module 1 to ensure its normal operation and printing quality. This includes cleaning the print head 11, replacing the ink cartridge, calibrating the position of the print head 11, checking and replacing worn parts, etc. Some advanced digital printing machines have maintenance stations that can automatically perform many maintenance tasks, such as automatic cleaning of the print head 11 and automatic replacement of the ink cartridge, reducing manual intervention and improving maintenance efficiency.

[0049] The positional relationship between the first interval 21 and the second interval 22 can be arranged in any way, such as up and down, front and back, left and right, as long as the displacement between the first interval 21 and the second interval 22 can be achieved to achieve the purpose of the application. In the embodiments of the present application, as shown in the drawings, Figure 4 、 5As shown, the displacement mechanism 2 has at least one second section 22, which can accommodate the number of print modules 1 that is at least one less than the total number of print modules 1. Such an arrangement can accommodate as many print modules 1 as possible for simultaneous maintenance, which improves the efficiency of maintenance.

[0050] The following is a description and explanation of the printing process of the present application: When the printing device is in a printing job, the operation unit group is in a working state and located in the first section 21. When one of the print modules 1 in the operation unit group needs to be maintained, the control module 3 responds to the control instruction and initiates the maintenance process. First, the control module 3 issues a command to the print module 1 that needs to be maintained, switching it from a working state to a non-working state, and separates it from the operation unit group by controlling the displacement mechanism 2, moving it until it enters the second section 22; at the same time, the remaining print modules 1 in the operation unit group do not stop. In order to maintain the amount of ink per unit length of the substrate, the control module 3 can synchronize the movement speed of the substrate or the sum of the ink amounts of the other print modules 1. This step improves the continuity of printing, because even if one print module 1 is being maintained, the remaining print modules 1 can still continue the current printing job.

[0051] As another implementation, a sensor 5 can also be provided on the displacement device, which automatically triggers the switch from a working state to a non-working state when the element moves to a set position.

[0052] A series of maintenance operations can be performed on the print module 1 in the second section 22. For example, the print module 1 needs to be cleaned and maintained, which can include cleaning the nozzles with liquid or air, wiping and brushing the nozzles and orifice plates, or cleaning the print head 11 with liquid.

[0053] After maintenance is complete, the print module 1 can be inspected. The inspection can be an automated program or a manual operation. The inspection can include visual inspection of the print module 1 and the print head 11, and performing test printing to check the shape of the droplets. When the print module 1 located in the second section 22 needs to be moved back to the first section 21 and presented in a working state, the control module 3 responds to the control instruction and initiates the maintenance process. The control module 3 issues a command to the print module 1 that needs to be presented in a working state, and merges it into the operation unit group by controlling the displacement mechanism 2, and switches it from a non-working state to a working state.

[0054] In some embodiments, the displacement mechanism 2 includes a first path 23; the printing module 1 is sequentially mounted on the first path 23 and can move sequentially between the first interval 21 and the second interval 22 along the first path 23. The first path 23 can be considered as a low-cost and common printhead displacement mechanism 2, and can also be called a crossbeam when placed horizontally. Common types of first paths 23 for displacement mechanisms 2 include linear, ball-bearing, and sliding types. These first paths 23 can reduce friction and improve the smoothness and accuracy of printhead 11 movement. The first path 23 and the slider allow the printhead 11 to move flexibly and in a controlled manner, ensuring the accuracy and stability of the printing process. Generally, the first path 23 is perpendicular to the direction of substrate movement.

[0055] As a better implementation, such as Figures 1-3 As shown, in a preferred embodiment, the displacement mechanism 2 has at least two second intervals 22, the first interval 21 is located in the middle of the first path 23, and the two second intervals 22 are located at both ends of the first path 23. When a specific printing module 1 needs to be moved from the first interval 21 to the second interval 22, it is often necessary to move all printing modules 1 closest to the second interval 22 to the second interval 22 one by one. If the second interval 22 is only located at one end of the first interval 21, when a printing module 1 far from the second interval 22 needs maintenance, all printing modules 1 need to be moved to the second interval 22 in sequence. At this time, no printing module 1 exists in the first interval 21, so it is impossible to maintain the continuity of printing operations while performing maintenance. This application cleverly solves the above problem by setting second intervals 22 at both ends of the first path 23. Specifically, each modular printing module 1 can be moved sequentially along the first path 23 to the nearest second interval 22. Since each print module 1 can selectively move sequentially to the second interval 22 located at either end of the first path 23, it can be guaranteed that print module 1 is operating in the first interval 21. Furthermore, because maintenance waiting time is required, when the switching frequency of printing demands exceeds the maintenance waiting time, print modules 1 can be provided from at least two different second intervals 22 to stagger peak times. This further improves printing continuity.

[0056] In other implementations, such as Figure 4 As shown, the displacement mechanism 2 includes a first path 23, a second path 24, and a drive unit that are interconnected.

[0057] When the printing module 1 is within the first interval 21, it is sequentially installed and arranged on the first path 23;

[0058] The printing module 1 is arranged in sequence on the second path 24 when in the second interval 22.

[0059] Any of the printing module 1 can move along the first path 23 and the second path 24, and be driven by the driving unit to move between the first interval 21 and the second interval 22. This implementation allows any printing module 1 to move between the first path 23 and the second path 24 without the need to move the printing module 1 out of sequence. When the switching frequency of the printing demand is greater than the time required for maintenance, there is no need to stagger the provision of printing modules 1 from at least two different second intervals 22. This design is more expensive than the previous implementation, but can greatly improve the efficiency of the movement and state switching of the printing module 1, and further improve the continuity of printing.

[0060] More specifically, the displacement mechanism 2 can include a first path 23 and a second path 24 arranged in parallel, specifically two parallel guide rails. At least one vertical connection path 4 is provided between the first path 23 and the second path 24 to form a path track network, and each printing module 1 includes a steering wheel group that can be controlled to rotate, which cooperates with the first path 23, the second path 24 and the connection path 4 to guide the printing module 1 to move in the direction indicated by the steering wheel group. Among them, the first path 23 and the connection path 4 are connected, and a rotatable auxiliary path is arranged, which can be rotated to be parallel to the first path 23 when the printing module 1 is located on the first path 23, and the steering wheel group is located on the rotatable auxiliary path when the printing module 1 needs to move to the connection path 4, and the rotatable auxiliary path is rotated to be parallel to the connection path 4. The second path 24 and the connection path 4 are connected, and a rotatable auxiliary path is arranged, which can be rotated to be parallel to the second path 24 when the printing module 1 needs to move to the second path 24, and the steering wheel group is located on the rotatable auxiliary path.

[0061] Here, another design idea can also be provided, in which the printing module 1 includes a movable track connected and arranged on the first path 23 and the second path 24 arranged in parallel, and the printing module 1 is movably arranged on the movable track to move between the first interval 21 and the second interval 22. Moreover, a connection mechanism that can be separated and connected to the movable track can be installed on the printing module 1, thereby ensuring the movement of the printing module 1.

[0062] In addition, the second path 24 can also be an extension from a certain position of the first interval 21 of the first path 23 to the second interval 22, so as not to be parallel to the first path 23.

[0063] As some embodiments, the control module 3 comprises a sensor 5 arranged on the displacement mechanism and configured to detect the position of the print module 1.

[0064] As some embodiments, a cleaning mechanism 6 is arranged in the second interval 22 and configured to clean the print module 1 in the non-working state.

[0065] The cleaning mechanism 6 can clean the residual waste liquid or sediment. The user can perform the cleaning operation through the user interface of the printing device, and select different cleaning modes such as standard cleaning or deep cleaning. The cleaning liquid is pumped from the tank to the ink path of the print head 11, and is sprayed through the nozzle at a precise angle and pressure, effectively removing the residual ink in the ink path. The second interval 22 can be provided with a suction device or a scraper to synchronize the cleaning of the surface of the print head 11, suck out the waste ink and cleaning liquid from the nozzle, and prevent backflow. The waste ink collector is responsible for collecting and safely storing these waste liquids to avoid leakage and pollution. The ink pipeline connects the nozzle and the ink cartridge, ensuring smooth flow and quick replacement of the ink. The ink filter is installed in the pipeline to filter out impurities in the ink and prevent the nozzle from being blocked.

[0066] As some embodiments, a detection mechanism 7 is arranged in the second interval 22 and configured to detect the fault of the print module 1 in the non-working state.

[0067] Before performing the maintenance operation, the system can use manual inspection or automatic detectors to check the print module 1 to determine whether maintenance is needed and which maintenance operations need to be performed. Such inspection ensures the pertinence and effectiveness of the maintenance. If a nozzle with permanent defects is found, it will also be replaced.

[0068] Embodiment two, the present application relates to a printing device, such as Figure 3 、 5As shown, the printing system applied to print a substrate comprises: a printing device as described in Embodiment One, comprising at least two printing modules 1, any of the printing modules 1 comprising one or more printheads 11; and a displacement mechanism 2, the at least two printing modules 1, any of the printing modules 1 comprising one or more printheads 11; and the displacement mechanism 2, the printing modules 1 being installed on the displacement mechanism 2; the displacement mechanism 2 being configured to move any of the printing modules 1; the displacement mechanism 2 having a first zone 21 and a second zone 22; the second zone 22 being different from the first zone 21; a control module 3 being configured to control the displacement mechanism 2 to move any of the printing modules 1 to be located in the first zone 21 or the second zone 22, and to selectively configure the printing modules 1 to be in an active state or an inactive state; wherein at least one of the printing modules 1 is configured to be in the active state and is located in the first zone 21; and the rest of the printing modules 1 is configured to be in the inactive state and is located in the second zone 22.

[0069] A printing platform 6 is provided to support the substrate;

[0070] and a maintenance platform 7 is installed outside the edge of the printing platform 6;

[0071] wherein the printing platform 6 and the first zone 21 have partial or full spatial overlap, and the second zone 22 and the maintenance platform 7 have partial or full spatial overlap.

[0072] The printing platform 6 can be in a fixed form, but is more suitable for a conveying form of the printing platform 6, such as a guide belt, a transmission roller or other similar transmission devices. The printing platform 6 can be installed at any angle. The substrate can be a fabric or a paper, or other printing material.

[0073] More specifically, the maintenance platform 7 can be provided with a printing module 1 locking mechanism to fix the printing module 1 during maintenance and keep it stable. In addition, the maintenance platform 7 can be provided with a cleaning tank for holding cleaning liquid, and the printing module 1 can be immersed therein for deep cleaning.

[0074] The technical principle and effect are the same as those of Embodiment One, and Embodiment One can be referred to and will not be described here.

[0075] In a third embodiment, the application relates to a control device, wherein any of the printing modules 1 comprises one or more printheads 11; the printing module 1 is installed on the displacement mechanism 2; the displacement mechanism 2 is configured to move any of the printing modules 1; the displacement mechanism 2 has a first interval 21 and a second interval 22; the second interval 22 is different from the first interval 21; the control device comprises a receiving unit configured to receive a control instruction; a control unit configured to control the displacement mechanism 2 to move any of the printing modules 1 to the first interval 21 or the second interval 22 in response to the control instruction, and to selectively configure the printing module 1 to be in a working state or a non-working state; wherein at least one of the printing modules 1 is configured to be in the working state and located in the first interval 21; and the remaining printing modules 1 are configured to be in the non-working state and located in the second interval 22. The technical principle and effect are the same as those of the first embodiment, and the first embodiment can be referred to and will not be described here.

[0076] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0077] Although the embodiments of the present application have been shown and described above, it should not be understood as a limitation on the claims. The present application is not limited to the above embodiments, and the specific structure allows changes. Any changes made within the scope of the independent claims of the present application are within the scope of the present application.

Claims

1. A printing apparatus of a movable printing module, characterized by, The printing device comprises: at least two printing modules, any of which comprises one or more print heads; and a displacement mechanism, wherein the printing modules are installed on the displacement mechanism; the displacement mechanism is configured to move any of the printing modules; the displacement mechanism has a first interval and a second interval; the second interval is different from the first interval; a control module is configured to control the displacement mechanism to move any of the printing modules to the first interval or the second interval, and to selectively configure the printing modules to be in an active state or an inactive state; at least one of the printing modules is configured to be in the active state and located in the first interval; the remaining printing modules are configured to be in the inactive state and located in the second interval.

2. The printing apparatus of the movable printing module according to claim 1, wherein, The printing device comprises: any of the printing modules further comprises an independent ink path system connected to the corresponding print head.

3. The printing apparatus of the movable printing module according to claim 1, wherein, The printing device comprises: the displacement mechanism comprises a first path and a driving unit; the printing modules are sequentially installed and arranged on the first path and can move along the first path between the first interval and the second interval under the driving of the driving unit.

4. The printing apparatus of claim 2, wherein, The printing device comprises: the displacement mechanism has at least one second interval, and one second interval can accommodate the number of printing modules, which is at least one less than the total number of printing modules.

5. The printing apparatus of the movable printing module according to claim 3, wherein The printing device comprises: the displacement mechanism has at least two second intervals, the first interval is arranged in the middle of the first path, and the two second intervals are arranged at the two ends of the first path.

6. The printing apparatus of the movable printing module according to claim 1, wherein The printing device comprises: the displacement mechanism comprises a first path, a second path and a driving unit connected to each other; when the printing modules are in the first interval, the printing modules are sequentially installed and arranged on the first path; when the printing modules are in the second interval, the printing modules are sequentially installed and arranged on the second path; any of the printing modules can move along the first path and the second path, and move between the first interval and the second interval under the driving of the driving unit.

7. The printing device of claim 1, wherein: the control module comprises a sensor arranged on the displacement mechanism and configured to detect the position of the printing modules.

8. The printing apparatus of the movable printing module according to claim 1, wherein, The printing device further comprises a cleaning mechanism arranged in the second interval and configured to clean the printing modules in the inactive state.

9. The printing apparatus of the movable printing module according to claim 1, wherein, The printing device further comprises a detection mechanism arranged in the second interval and configured to detect faults of the printing modules in the inactive state.

10. A printing apparatus of a movable printing module, applied to print a substrate, characterized in that, The printing device comprises: at least two printing modules, any of which comprises one or more print heads; and a displacement mechanism, wherein the printing modules are installed on the displacement mechanism; the displacement mechanism is configured to move any of the printing modules; the displacement mechanism has a first interval and a second interval; the second interval is different from the first interval; a control module is configured to control the displacement mechanism to move any of the printing modules to the first interval or the second interval, and to selectively configure the printing modules to be in an active state or an inactive state; at least one of the printing modules is configured to be in the active state and located in the first interval; the remaining printing modules are configured to be in the inactive state and located in the second interval. The displacement mechanism has a first zone and a second zone; the second zone is different from the first zone; The control module is configured to control the displacement mechanism to move any of the printing modules to the first zone or the second zone, and to selectively configure the printing modules to be in an active state or an inactive state; wherein at least one of the printing modules is configured to be in the active state and is located in the first zone; the rest of the printing modules are configured to be in the inactive state and are located in the second zone; A printing platform is used to support the substrate; And a maintenance platform is installed outside the edge of the printing platform; The printing platform and the first zone have partial or full spatial overlap, and the second zone and the maintenance platform have partial or full spatial overlap.

11. A control device for a movable printing module, characterized in that The displacement mechanism and the printing module are applied to any one of claims 1-9, wherein any of the printing modules comprises one or more print heads; the printing module is installed on the displacement mechanism; the displacement mechanism is configured to be able to move any of the printing modules; the displacement mechanism has a first zone and a second zone; the second zone is different from the first zone; the control device comprises: A receiving unit is used to receive a control instruction; A control unit is used to respond to the control instruction, and the control module is configured to control the displacement mechanism to move any of the printing modules to the first zone or the second zone, and to selectively configure the printing modules to be in an active state or an inactive state; wherein at least one of the printing modules is configured to be in the active state and is located in the first zone; the rest of the printing modules are configured to be in the inactive state and are located in the second zone.

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