A printing module handling device and a loading system

Abstract

The present invention provides a printing module handling device and a loading system, relating to the field of printing equipment. The printing module handling device includes a handling mechanism and a loading mechanism. The loading mechanism includes a base and a loading handle for loading the printing module. The loading handle is slidably connected to the base and reciprocally slides relative to the base, and the base is slidably connected to the handling mechanism. This printing module handling device can achieve the handling and replacement of the printing module, saving time and effort. The present invention also provides a loading system including the printing module handling device.

Description

Technical Field

[0001] The present invention relates to the field of printing devices, and particularly to a printing module handling device and a loading system. Background Art

[0002] In recent years, inkjet printing technology has developed rapidly in the field of manufacturing electronic functional devices, especially attracting great attention in the field of flat panel displays. For example, in the manufacturing of OLED (Organic Light-Emitting Diode) and QLED (Quantum Dot Light Emitting Diodes) displays, inkjet printing technology has advantages such as high material utilization rate, no need to use a fine metal mask plate, and can be prepared in large areas, which are not possessed by traditional vacuum coating technologies. Therefore, it is considered an effective way to solve the high-cost problem and realize large-area devices.

[0003] To prepare OLED or QLED displays by inkjet printing, usually multiple inks are required, such as hole injection layer ink, hole transport layer ink, light-emitting layer ink, electron transport layer ink, and electron injection layer ink. Correspondingly, an inkjet printer has multiple printing modules to correspond to each type of ink. However, each time printing is performed, only one printing module (including an ink path circulation system with the corresponding ink) is used. When other inks are needed for printing, the printing module needs to be replaced. Along with the development route of the industry, existing inkjet printing devices are developing towards larger sizes. However, existing large inkjet printing devices cannot handle and replace printing modules, or require manual climbing up and down during handling and replacement, which is time-consuming and laborious, and there is also a risk of contaminating the processed devices during manual replacement. Summary of the Invention

[0004] The purpose of the present invention is to provide a printing module handling device that can realize the handling and replacement of printing modules, saving time and effort.

[0005] Another purpose of the present invention is to provide a loading system.

[0006] The technical problems solved by the present invention are realized by adopting the following technical solutions:

[0007] A printing module handling device includes:

[0008] A handling mechanism; and

[0009] A loading mechanism, the loading mechanism includes a base and a loading handle for loading a printing module. The loading handle is slidably connected to the base and reciprocally slides relative to the base, and the base is slidably connected to the handling mechanism.

[0010] Optionally, in some embodiments of the present invention, the loading mechanism further includes:

[0011] A spring, one end of the spring is fixed to the base, and the other end of the spring is connected to the loading handle.

[0012] Optionally, in some embodiments of the present invention, the loading handle has a first station for loading the printing module, and the loading mechanism further includes:

[0013] A first fixing member, the first fixing member is used to fix the loading handle located at the first station.

[0014] Optionally, in some embodiments of the present invention, the loading handle is provided with a magnetic block, the first fixing member includes a hooked tip and a rod portion connected to each other, the hooked tip fixes the loading handle by hooking the magnetic block, the rod portion is rotatably connected to the base, and the rod portion is provided with a magnet having the same magnetism as the magnetic block, for generating a repulsive magnetic force with the magnetic block to force the rod portion to rotate and drive the hooked tip to unlock the magnetic block.

[0015] Optionally, in some embodiments of the present invention, the loading handle has a second station for carrying the printing module, and the loading mechanism further includes:

[0016] A second fixing member, the second fixing member is rotatably connected to the base, and the second fixing member is used to fix the loading handle located at the second station.

[0017] Optionally, in some embodiments of the present invention, the loading mechanism further includes:

[0018] A sleeve and a thimble, the sleeve is fixed to the base, the thimble is inserted through the sleeve, one end of the thimble is arranged adjacent to the second fixing member, the other end of the thimble is placed on the handling mechanism, and the handling mechanism is provided with a stop block for driving the thimble to drive the second fixing member to unlock the loading handle at the horizontal position of the printing module loading.

[0019] Optionally, in some embodiments of the present invention, the handling mechanism includes:

[0020] A first sliding member and a second sliding member, the base is arranged on the first sliding member in the vertical direction and is slidably connected to the first sliding member to longitudinally slide on the horizontal plane, and one side of the first sliding member facing away from the base is slidably connected to the second sliding member to laterally slide on the horizontal plane.

[0021] Optionally, in some embodiments of the present invention, the loading handle is provided with a U-shaped hook, the printing module includes a housing, a docking portion and an ink path system, the ink path system is arranged inside the housing, the docking portion is fixed to the outer surface of the housing, and the docking portion is provided with an inner groove for docking with the U-shaped hook.

[0022] In addition, a loading system includes:

[0023] The above-mentioned printing module handling device; and

[0024] The printing module receiving mechanism is used to receive the printing module conveyed by the printing module handling device.

[0025] Optionally, in some embodiments of the present invention, the printing module receiving mechanism includes a main body, a push-pull rod, and a first circuit connection part. The push-pull rod and the first circuit connection part are fixed on the same side of the main body. The printing module is provided with a groove for the push-pull rod to extend into to push or pull the printing module, and a second circuit connection part for docking with the first circuit connection part.

[0026] Compared with the prior art, the present invention has the following beneficial effects: The loading mechanism of the present invention is provided with a loading handle that can load the printing module, and the loading mechanism can slide relative to the handling mechanism on a horizontal plane. Therefore, after placing the printing module on the loading handle, the sliding connection between the loading mechanism and the handling mechanism can be used to realize the handling and transportation of the printing module, and the printing module can be installed and uninstalled with the help of the loading handle to realize the replacement of the printing module, which is time-saving and labor-saving in the whole process. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0028] Figure 1 is an axonometric view of the printing module handling device provided by the embodiment of the present invention;

[0029] Figure 2 is an axonometric view of the printing module handling device provided by the embodiment of the present invention;

[0030] Figure 3 is an axonometric view of the printing module provided by the embodiment of the present invention;

[0031] Figure 4 is an axonometric view of the printing module provided by the embodiment of the present invention;

[0032] Figure 5 is an axonometric view of the printing module receiving mechanism provided by the embodiment of the present invention.

[0033] Reference Signs:

[0034] Print module handling device 1; Handling mechanism 10; Stop block 101; First slider 102; Second slider 103; Loading mechanism 11; Base 111; Loading handle 112; Spring 113; First fixing member 114; Hook tip 115; Rod portion 116; Magnet 117; Magnetic block 118; Second fixing member 119; Sleeve 120; Thimble 121; U-shaped hook 122; Print module 2; Housing 20; Docking portion 21; Groove 22; Second circuit connection portion 23; Print module receiving mechanism 3; Body 30; Push-pull rod 31; First circuit connection portion 32. Detailed implementation manners

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are only a part rather than all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application. In addition, it should be understood that the specific implementation manners described herein are only for explaining and understanding the present application, and are not used to limit the present application. In the present application, unless otherwise specified, the orientation terms such as "upper" and "lower" generally refer to the upper and lower in the actual use or working state of the device, specifically the drawing directions in the drawings; and "inner" refers to the inside of the contour of the device.

[0036] See Figure 1 and Figure 2 As shown in and, an embodiment of the present invention provides a print module handling device 1, including a handling mechanism 10 and a loading mechanism 11. The loading mechanism 11 includes a base 111 and a loading handle 112 for loading the print module 2. The loading handle 112 is slidably connected to the base 111 and reciprocates relative to the base. For example, the loading handle 112 reciprocates relative to the base 111 in the vertical direction. The base 111 is slidably connected to the handling mechanism 10. For example, the base 111 slides relative to the handling mechanism 10 on a horizontal plane.

[0037] In this embodiment, the base 111 is an "L"-shaped plate with a vertical cross-section in the shape of an "L". The "L"-shaped plate can be integrally formed or connected by two plates. Two strip-shaped through slots are formed in the vertical plate of the "L"-shaped plate. The loading handle 112 is square-shaped, and two opposite side frames respectively pass through the two strip-shaped through slots. The entire square-shaped loading handle 112 is sleeved on the plate between the two strip-shaped through slots. Since the square-shaped loading handle 112 is sleeved on the plate between the two strip-shaped through slots, the loading handle 112 can be pulled to slide up and down, realizing the sliding connection between the loading handle 112 and the base 111. Of course, in other embodiments, it can also be realized by other means. For example, there is one strip-shaped through slot, and the handle is an "I"-shaped handle passing through the strip-shaped through slot. By pulling the "I"-shaped handle to slide in one strip-shaped through slot, the sliding connection between the loading handle 112 and the base 111 can be realized. Another example is to achieve it by means of a hydraulic cylinder control or a motor-driven handle.

[0038] Furthermore, the loading mechanism 11 further includes a spring 113. One end of the spring 113 is fixed to the base 111, and the other end of the spring 113 is connected to the loading handle 112. The spring 113 can provide a supporting force to balance the self-weight of the printing module 2 during the process of taking and placing the printing module 2, achieving the purpose of easy replacement.

[0039] The loading handle 112 has a first station for loading the printing module 2. The loading mechanism 11 further includes a first fixing member 114, and the first fixing member 114 is used to fix the loading handle 112 located at the first station. The first station is the station where the loading handle 112 installs the printing module 2 it carries onto the printer or a certain component of the printer, or the first station is the station where the loading handle 112 unloads the printing module 2 connected to the printer or a certain component of the printer onto the loading handle 112. At this station, the first fixing member 114 hooks and fixes the loading handle 112. There are various ways to achieve the fixing of the loading handle 112 by the first fixing member 114. For example, a clamping arm can be selected as the fixing member, and the loading handle 112 is clamped or released by electrically controlling the clamping arm to achieve the fixing of the loading handle 112. In this embodiment, the loading handle 112 is provided with a protruding magnetic block 118. The first fixing member 114 includes a hook tip portion 115 and a rod portion 116 connected to each other. The hook tip portion 115 fixes the loading handle 112 by hooking the magnetic block 118. The rod portion 116 is rotatably connected to the base portion 111, and the rod portion 116 is provided with a magnet 117 having the same magnetism as the magnetic block 118, which is used to generate a repulsive magnetic force with the magnetic block 118 to force the rod portion 116 to rotate and drive the hook tip portion 115 to unlock the magnetic block 118. In this embodiment, the base portion 111 with a vertical cross-section in the shape of an "L" is provided with two strip-shaped through slots, and the square-shaped loading handle 112 is sleeved on the plate between the two strip-shaped through slots. The base portion 111 is further provided with a third strip-shaped through slot, and the magnetic block 118 is located in this strip-shaped through slot. The vertical plate between this strip-shaped through slot and its adjacent strip-shaped through slot is a hollow structure, and the magnetic block 118 is connected to the loading handle 112 through a connecting member passing through the hollow structure, realizing the linkage between the magnetic block 118 and the loading handle 112. The first fixing member 114 is a hook needle similar to an inverted "T" shape. The hook needle in the shape of an inverted "T" fixes the loading handle 112 at the lower position through the magnetic block 118. The magnet 117 is arranged on the vertical side of the hook needle. When the loading handle 112 is pressed and drives the magnetic block 118 downward, since the magnetic block 118 and the magnet 117 have the same magnetism, a repulsive force is generated. The repulsive force forces the rod portion 116 to rotate, so that the hook tip portion 115 connected to the rod portion 116 is displaced and disengages from the magnetic block 118. In this way, the fixing of the magnetic block 118 is released.

[0040] The loading handle 112 has a second station for carrying the printing module 2. The loading mechanism 11 further includes a second fixing member 119. The second fixing member 119 is rotatably connected to the base 111, and the second fixing member 119 is used to fix the loading handle 112 located at the second station. The second station is the station where the printing module 2 is carried by the loading handle 112 and moves horizontally on the handling mechanism 10. That is, after the printing module 2 is placed on the loading handle 112, it is necessary to move the loading mechanism 11 including the loading handle 112 relative to the handling mechanism 10. During this process, the loading handle 112 will be in a set position to remain stable before reaching the horizontal position for loading the printing module 2, and this set position is the second station and also the station for carrying the printing module 2. In this embodiment, the second fixing member 119 is a hook needle similar to a regular "T" shape, and the hook needle in the shape of a regular "T" fixes the loading handle 112 at an upper position through a fixing magnet 118. Of course, in other embodiments, the second fixing member 119 can also fix the loading handle 112 in other ways. For example, a stop bar can be selected as the fixing member and driven by a driving device such as a motor or a hydraulic cylinder to horizontally block the loading handle 112 at the horizontal position to fix the loading handle 112.

[0041] Furthermore, the loading mechanism 11 further includes a sleeve 120 and a thimble 121. The sleeve 120 is fixed to the base 111, the thimble 121 is inserted through the sleeve 120, one end of the thimble 121 is disposed adjacent to the second fixing member 119, and the other end of the thimble 121 is placed on the handling mechanism 10. The handling mechanism 10 is provided with a stop block 101 for driving the thimble 121 to drive the second fixing member 119 to unlock the loading handle 112 at the horizontal position for loading the printing module 2. The thimble 121 is in a free state within the sleeve 120 and is supported by the handling mechanism 10. The stop block 101 is in the shape of a ramp. When the loading mechanism 11 is pushed along the handling mechanism 10, the thimble 121 is driven to move on the surface of the handling mechanism 10 until the loading mechanism 11 moves to the horizontal position for loading the printing module 2. At this time, due to the setting of the ramp-shaped stop block 101, the end of the thimble 121 in contact with the handling mechanism 10 (i.e., the above-mentioned "other end") is lifted, and the end of the thimble 121 adjacent to the second fixing member 119 is correspondingly lifted upward, pressing against the second fixing member 119 to make it rotate, so that the tip of the hook needle in the shape of a regular "T" moves away to release the fixation of the loading handle 112. It should be noted that the adjacent setting of one end of the thimble 121 and the second fixing member 119 is not overly restricted, as long as it can be achieved that based on the setting of the stop block 101, the thimble 121 drives the second fixing member 119 to unlock the loading handle 112 at the horizontal position for loading the printing module 2 (in this embodiment, that is, to release the fixation of the magnet 118).

[0042] The handling mechanism 10 includes a first slider 102 and a second slider 103. The base 111 is arranged on the first slider 102 in the vertical direction and is slidably connected to the first slider 102 to slide longitudinally on the horizontal plane. One side of the first slider 102 facing away from the base 111 is slidably connected to the second slider 103 to slide transversely on the horizontal plane. Specifically, the transverse plate of the base 111 with a vertical cross-section in the shape of "L" is provided with a base chute, and the first slider 102 is provided with a slide rail matching the base chute. On the side of the first slider 102 opposite to the slide rail, there is also a moving part chute. The second slider 103 includes a slide rail matching the moving part chute. In this way, the sliding connection between the components is realized. The slide rail matching the moving part chute can be installed on the printer base or at other positions in the production workshop, as long as it can help achieve the purpose of replacing the print module on the print module handling device and transporting the print module to the printer by means of the print module handling device. In other embodiments, the components where the slide rail is located and the components where the chute is located can also be set separately, as long as the sliding connection between the base 111 and the first slider 102, and the sliding connection between the first slider 102 and the second slider 103 can be realized.

[0043] When horizontally handling the print module 2, the loading mechanism 11 arranged on the first slider 102 slides horizontally on the horizontal plane, and the ejector pin 121 does not contact the second fixing member 119. At this time, the loading handle 112 is in the second working position, and the magnetic block 118 is fixed by the second fixing member 119, and the loading handle 112 cannot move downward. When the corresponding print module 2 needs to be installed, press the loading handle 112 to move downward to the first working position, and the first fixing member 114 hooks the magnetic block 118 to fix the loading handle 112 at the lower position of the loading mechanism 11. At this time, the loading handle 112 cannot move upward. When unlocking is required, press the loading handle 112, and the loading handle 112 can move upward under the action of the magnet 117, the magnetic block 118, etc.

[0044] See Figure 3, the loading handle 112 is provided with a U-shaped hook 122. The printing module 2 includes a housing 20, a docking portion 21, and an ink path system (not shown in the figure). The ink path system is disposed inside the housing 20, and the docking portion 21 is fixed to the outer surface of the housing 20. The docking portion 21 is provided with an inner groove for docking with the U-shaped hook 122. In this embodiment, the ink path system is integrated inside the printing module 2 to provide the ink required for printing, and the inkjet print head is disposed below the printing module 2. By inserting the U-shaped hook 122 of the loading handle 112 into the inner groove of the docking portion 21, the printing module 2 can be hooked to realize the movement of the printing module 2. Of course, in other embodiments, other methods can also be used to realize the docking of the printing module handling device 1 and the printing module 2. For example, the docking portion 21 is not provided on the printing module 2, but the handle for carrying the printing module 2 is set to be flat to complete the carrying of the printing module 2, and the printing module 2 is loaded onto the printer by means of other settings (such as a hydraulic cylinder, a push rod).

[0045] In addition, an embodiment of the present invention further provides a loading system, including the above-mentioned printing module handling device 1 and a printing module receiving mechanism 3. The printing module receiving mechanism 3 is used to receive the printing module 2 conveyed by the printing module handling device 1.

[0046] See Figure 5 , the printing module receiving mechanism 3 includes a body 30, a push-pull rod 31, and a first circuit connection portion 32. The push-pull rod 31 and the first circuit connection portion 32 are fixed to the same side of the body 30. See Figure 4, the printing module 2 is provided with a groove 22 for the push-pull rod 31 to extend into to push or pull the printing module 2, and a second circuit connection part 23 for docking with the first circuit connection part 32. The groove 22 and the second circuit connection part 23 are arranged on the side of the printing module 2 opposite to the docking part 21. The arrangement of the push-pull rod 31 can further improve the docking between the printing module 2 and the printer. The groove 22 is arranged at the lower position of the printing module 2. When the loading handle 112 of the printing module handling device 1 loads the printing module 2 onto the printing module receiving mechanism 3, at this time, the loading handle 112 moves from top to bottom, so that the groove 22 of the printing module 2 aligns with the push-pull rod 31 of the printing module receiving mechanism 3. The push-pull rod 31 extends into the groove 22 and pulls the printing module 2 in the direction of the printer to complete the installation of the printing module. On the contrary, when it is necessary to unload the printing module 2, the printing module 2 can be pushed by the push-pull rod 31 to disengage from the printer, and the printing module handling device 1 receives the unloaded printing module 2 for handling. Moreover, since the first circuit connection part 32 is arranged on the same side as the push-pull rod 31 and the printing module 2 is provided with a corresponding second circuit connection part 23, when the push-pull rod 31 pulls or pushes the printing module 2, the docking or separation of the first circuit connection part 32 and the second circuit connection part 23 can also be completed, realizing the connection or disconnection of the circuit of the printing module 2. In this embodiment, the push-pull rod 31 is electrically controlled to realize pulling the printing module 2 or ejecting the printing module 2.

[0047] In this embodiment, the first circuit connection part 32 is a socket, and the second circuit connection part 23 is a plug. Of course, in other embodiments, whether the first circuit connection part 32 and the second circuit connection part 23 are specifically plugs or sockets can be set separately.

[0048] When unloading the printing module 2, the first sliding part 102 connected to the loading mechanism 11 moves horizontally along the second sliding part 103, and the first sliding part 102 is moved to the docking surface direction of the loading position of the printing module 2, and the loading mechanism 11 is pushed to move longitudinally along the first sliding part 102. As the loading mechanism 11 moves, the ejector pin 121 drags on the first sliding part 102. When the ejector pin 121 reaches the ramp-shaped stopper 101, the ejector pin 121 is lifted, driving the second fixing part 119 to rotate, so as to disengage the magnetic block 118, and the magnetic block 118 is unlocked. Press down the loading handle 112 to the first working position for loading, and the first fixing part 114 hooks the magnetic block 118 to achieve fixation, so as to ensure that the U-shaped hook 122 of the loading mechanism 11 accurately inserts into the docking part 21 of the printing module 2 and prevent the alignment deviation caused by the up and down shaking of the loading handle 112.

[0049] The push rod 31 of the printing module receiving mechanism 3 pushes forward, disconnecting the second circuit connection part 23 of the printing module 2 from the first circuit connection part 32 of the printing module receiving mechanism 3, and at the same time sending out the printing module 2. After the loading handle 112 uses the U-shaped hook 122 to support the printing module 2, press the loading handle 112 downward forcefully, so that the magnet block 118 reaches near the magnet 117 with the same magnetism. Under the action of the repulsion between like poles, the first fixing part 114 is bounced open, and the magnet block 118 is unlocked. The loading handle 112 automatically moves upward to the second working position for handling under the action of the spring 113. Pull the loading mechanism 11 to retreat along the first sliding part 102, the ejector pin 121 leaves the stop block 101 and naturally rests on the first sliding part 102, so that the second fixing part 119 resets to fix the magnet block 118. At this time, the loading handle 112 cannot move downward, so that the shaking and collision of the printing module 2 during handling can be prevented.

[0050] When installing the printing module 2, repeat the steps of unloading the printing module 2. The difference is that the push rod 31 pulls backward to move the printing module 2 toward the printer and connects the second circuit connection part 23 of the printing module 2 to the first circuit connection part 32 of the printing module receiving mechanism 3. Then withdraw the loading mechanism 11 to complete the installation of the printing module 2.

[0051] The loading system provided by the embodiment of the present invention realizes plug-and-play. For printing modules with different inks, without adding other printing devices, it can realize the handling and replacement of the printing module, saving costs and being convenient to operate.

[0052] The technical solutions provided by the embodiments of the present invention have been introduced in detail above. Specific examples are used in this article to elaborate on the principles and implementation manners of the present invention. The descriptions of the above embodiments are only used to help understand the method and its core idea of the present invention; at the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A printing module handling device, characterized in that, Comprising: A handling mechanism; And A loading mechanism, the loading mechanism includes a base and a loading handle for loading a printing module, the loading handle is slidably connected to the base and reciprocates relative to the base, and the base is slidably connected to the handling mechanism; Wherein, the loading mechanism further includes: a first fixing member for fixing the loading handle; The loading handle is provided with a magnetic block, the first fixing member includes a hooked tip and a rod portion connected to each other, the hooked tip fixes the loading handle by hooking the magnetic block, the rod portion is rotatably connected to the base, and the rod portion is provided with a magnet having the same magnetic property as the magnetic block for generating a repulsive magnetic force with the magnetic block to force the rod portion to rotate and drive the hooked tip to unlock the magnetic block.

2. The printing module handling device according to claim 1, wherein The loading mechanism further includes: A spring, one end of the spring is fixed to the base, and the other end of the spring is connected to the loading handle.

3. The printing module handling device according to claim 2, wherein The loading handle has a first working position for loading the printing module, and the first fixing member is used to fix the loading handle located at the first working position.

4. The printing module handling device according to claim 2, wherein The loading handle has a second working position for handling the printing module, and the loading mechanism further includes: A second fixing member, the second fixing member is rotatably connected to the base, and the second fixing member is used to fix the loading handle located at the second working position.

5. The printing module handling device according to claim 4, wherein The loading mechanism further includes: A sleeve and a thimble, the sleeve is fixed to the base, the thimble is disposed through the sleeve, one end of the thimble is adjacent to the second fixing member, the other end of the thimble is placed on the handling mechanism, and the handling mechanism is provided with a stop block for driving the thimble to drive the second fixing member to unlock the loading handle at the horizontal position of the printing module loading.

6. The printing module handling device according to claim 1, wherein, The handling mechanism includes: A first slider and a second slider, the base is disposed on the first slider in the vertical direction and is slidably connected to the first slider to longitudinally slide on the horizontal plane, and one side of the first slider facing away from the base is slidably connected to the second slider to laterally slide on the horizontal plane.

7. The printing module handling device according to claim 1, wherein The loading handle is provided with a U-shaped hook, the printing module includes a housing, a docking portion and an ink path system, the ink path system is disposed inside the housing, the docking portion is fixed to the outer surface of the housing, and the docking portion is provided with an inner groove for docking with the U-shaped hook.

8. A loading system, characterized in that, Comprising: The printing module handling device according to any one of claims 1 to 7; And A printing module receiving mechanism for receiving the printing module conveyed by the printing module handling device.

9. The loading system according to claim 8, wherein, The printing module receiving mechanism includes a body, a push-pull rod and a first circuit connection portion, the push-pull rod and the first circuit connection portion are fixed on the same side of the body, the printing module is provided with a groove for the push-pull rod to extend into to push or pull the printing module, and a second circuit connection portion for docking with the first circuit connection portion.

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