Printing module and printing equipment

Abstract

The utility model relates to the technical field of digital printing, and discloses a printing module and printing equipment, and the printing module comprises a control cabinet, a printing module, a connecting cable and an ink conveying pipe. The control cabinet comprises a cabinet body, a control assembly and an ink path assembly, the control assembly and the ink path assembly are arranged in the cabinet body, the ink path assembly comprises an ink barrel and an ink pump, and the ink barrel is connected with the ink pump. The printing module comprises a shell, a fixing assembly, a spray head, an ink box and a printing control panel, the fixing assembly is connected with the shell and used for being installed on the feeding platform, the spray head, the ink box and the printing control panel are fixed to the shell, and the spray head is connected with the ink box. One end of the connecting cable is connected with the control assembly, and the other end is connected with the printing control board. The first end of the ink conveying pipe is connected with the ink box, and the second end of the ink conveying pipe is connected with the output end of the ink pump. In this way, the printing requirements of more forms of materials can be met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of digital printing, in particular to a printing module and a printing device. BACKGROUND

[0002] A digital printer is a device that uses digital technology for printing, and is widely used in the production of labels, packaging, advertising and other printed matter. At present, most of the label digital printers are in the form of a complete machine, and each device for realizing the printing function is integrated on the material conveying platform. The complete machine has a large volume, a complex structure and a high cost, and the material conveying platform integrated on the complete machine can only convey a specific type of printing material, which cannot meet the printing needs of various forms of materials. CONTENT OF THE UTILITY MODEL

[0003] In view of the problems in the background art, the purpose of the present application is to provide a printing module and a printing device, which overcome the above problems or at least partially solve the above problems.

[0004] According to a first aspect of the present application, a printing module is provided, which comprises a control cabinet, a printing module, a connection cable and an ink conveying pipe. The control cabinet comprises a cabinet body, a control component and an ink path component, the control component and the ink path component are arranged in the cabinet body, the ink path component comprises an ink tank and an ink pump, and the ink tank is connected with the ink pump. The printing module comprises a shell, a fixing component, a nozzle, an ink cartridge and a printing control board, the fixing component is connected with the shell, the fixing component is used for being installed on a material conveying platform, the nozzle, the ink cartridge and the printing control board are fixed in the shell, and the nozzle is connected with the ink cartridge. One end of the connection cable is connected with the control component, and the other end is connected with the printing control board. The first end of the ink conveying pipe is connected with the ink cartridge, and the second end of the ink conveying pipe is connected with the output end of the ink pump.

[0005] In one or more optional embodiments above, the printing module comprises an air conveying pipe, the ink path component comprises a vacuum pump and a negative pressure tank, the vacuum pump is connected with the negative pressure tank, the vacuum pump is electrically connected with the control component, the first end of the air conveying pipe is connected with the ink cartridge, and the second end of the air conveying pipe is connected with the negative pressure tank.

[0006] In one or more optional embodiments above, the ink path assembly comprises a maintenance pump and a solenoid valve assembly, the solenoid valve assembly is electrically connected with the control assembly, the solenoid valve assembly is provided with a first interface, a second interface and a third interface, the first interface is connected with the second end of the gas conveying pipe, the second interface is connected with the negative pressure tank, and the third interface is connected with the maintenance pump, the solenoid valve assembly can be switched between a first state and a second state, when the solenoid valve assembly is in the first state, the first interface and the second interface are in conduction, and the first interface and the third interface are in isolation, when the solenoid valve assembly is in the second state, the first interface and the second interface are in isolation, and the first interface and the third interface are in conduction.

[0007] In one or more optional embodiments above, the control cabinet comprises an adapter block, the adapter block is arranged in the cabinet body, the adapter block is provided with a first adapter channel and a second adapter channel, one end of the first adapter channel forms a first mounting port on a first surface of the adapter block outside the cabinet body, the other end of the first adapter channel forms a second mounting port on a second surface of the adapter block inside the cabinet body, one end of the second adapter channel forms a third mounting port on the first surface, and the other end of the second adapter channel forms a fourth mounting port on the second surface, the second end of the ink conveying pipe and the second end of the gas conveying pipe are connected with the first mounting port and the third mounting port respectively, and the second mounting port and the fourth mounting port are connected with the output end of the ink pump and the first interface respectively.

[0008] In one or more optional embodiments above, the printing module comprises a first protective sleeve, two ends of the first protective sleeve are connected with the cabinet body and the shell respectively, and the ink conveying pipe and the gas conveying pipe pass through the first protective sleeve; and / or the printing module comprises a second protective sleeve, two ends of the second protective sleeve are connected with the cabinet body and the shell respectively, and the connection cable passes through the second protective sleeve.

[0009] In one or more optional embodiments above, the control cabinet comprises an industrial computer and a power supply assembly, the connection cable comprises a first conductive wire, a second conductive wire and an optical fiber wire, two ends of the first conductive wire are connected with the printing control board and the control assembly respectively, two ends of the second conductive wire are connected with the printing control board and the power supply assembly respectively, and two ends of the optical fiber wire are connected with the printing control board and the industrial computer respectively.

[0010] In one or more optional embodiments above, the control cabinet comprises a human-computer interaction device, a top end of the cabinet body is provided with an operation platform, and the human-computer interaction device is arranged on the operation platform; and / or a bottom end of the control cabinet is provided with a universal wheel set.

[0011] In one or more optional embodiments above, the fixing assembly comprises a fixing plate and a sliding connection assembly, the fixing plate is used for fixing to the material feeding platform, and the sliding connection assembly is connected with the fixing plate and the shell, and is used for driving the shell to reciprocate relative to the fixing plate.

[0012] In one or more optional embodiments above, an outer wall of the shell is fixed with a pointer, a side wall of the fixing plate is provided with a scale, the pointer points to the scale, and the pointer and the scale are used for displaying the moving position of the shell relative to the fixing plate.

[0013] According to a second aspect of the present application, a printing device is provided, comprising a material feeding platform and a printing module as described above. The material feeding platform is used for carrying and conveying a material to be printed. The printing module is installed on the material feeding platform.

[0014] The printing module can be installed on different types of material feeding platforms according to actual needs, which is beneficial to meet the printing needs of more forms of materials. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the specific embodiments or the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual proportion.

[0016] Figure 1 A schematic diagram of a printing device provided by an embodiment of the present application;

[0017] Figure 2 A schematic diagram of a control cabinet of a printing module provided by an embodiment of the present application after being cut along a plane perpendicular to the third direction;

[0018] Figure 3 A schematic diagram of a control cabinet of a printing module provided by an embodiment of the present application after being cut along a plane perpendicular to the second direction;

[0019] Figure 4 A schematic diagram of a printing module of a printing module provided by an embodiment of the present application after being cut;

[0020] Figure 5 A schematic diagram of a printing module of a printing module provided by an embodiment of the present application;

[0021] Figure 6 An exploded view of an adapter block of a print module provided in an embodiment of the present application;

[0022] Figure 7 Another schematic view of a print module of a print module provided in an embodiment of the present application after being cut open. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present application, the present application will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element or one or more intervening elements can be present therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element or one or more intervening elements can be present therebetween. The terms "vertical", "horizontal", "left", "right", "inner", "outer" and similar expressions used in the present specification are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used in the present specification are the same as those commonly understood by one skilled in the art to which the present application belongs. The terms used in the description of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the present specification includes any and all combinations of one or more related listed items.

[0025] In the description of the present specification, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0027] Please refer to Figures 1-5The printing module includes a control cabinet 1, a printing module 2, a connection cable (not shown in the figure) and an ink delivery pipe (not shown in the figure). The control cabinet 1 includes a cabinet body 11, a control assembly 12 and an ink path assembly 13, and the control assembly 12 and the ink path assembly 13 are arranged in the cabinet body 11. The control assembly 12 is used to control the work of the ink path assembly 13 and the printing module 2. The ink path assembly 13 includes an ink tank 131 and an ink pump 132, the ink tank 131 is connected with the ink pump 132, the ink tank 131 is used to store ink, and the ink pump 132 is used to deliver the ink in the ink tank 131 to the ink cartridge 24 through the ink delivery pipe. The printing module 2 includes a shell 21, a fixing assembly 22, a nozzle 23, an ink cartridge 24 and a printing control board 25, the fixing assembly 22 is connected with the shell 21, the fixing assembly 22 is used to be installed on the material running platform 200, the nozzle 23, the ink cartridge 24 and the printing control board 25 are fixed to the shell 21, and the nozzle 23 is connected with the ink cartridge 24. One end of the connection cable is connected with the control assembly 12, and the other end is connected with the printing control board 25. The first end of the ink delivery pipe is connected with the ink cartridge 24, and the second end of the ink delivery pipe is connected with the output end of the ink pump 132.

[0028] The printing module provided by the embodiment of the application is provided with the control cabinet 1 and the printing module 2 as independent modules, the ink tank 131 of the ink path assembly 13 is connected with the ink cartridge 24 of the printing module 2 through the ink delivery pipe, the control assembly 12 is connected with the printing control board 25 of the printing module 2 through the connection cable, and the printing module 2 can be installed on different types of material running platforms 200 according to actual needs, so that the printing requirements of more forms of materials can be met.

[0029] In some embodiments, the ink delivery pipe is made of flexible material.

[0030] In some embodiments, the ink delivery pipe is made of flexible material.

[0031] Please refer to Figures 2-4 In some embodiments, the printing module includes an air delivery pipe (not shown in the figure), the ink path assembly 13 includes a vacuum pump 133 and a negative pressure tank 134, the vacuum pump 133 is connected with the negative pressure tank 134, the vacuum pump 133 is electrically connected with the control assembly 12, the first end of the air delivery pipe is connected with the ink cartridge 24, and the second end of the air delivery pipe is connected with the negative pressure tank 134. The control assembly 12 controls the work of the vacuum pump 133, and the vacuum pump 133 is used to extract the gas in the negative pressure tank 134, so that the negative pressure is formed in the negative pressure tank 134. The negative pressure tank 134 is communicated with the ink cartridge 24 through the air delivery pipe, and the negative pressure tank 134 is used to maintain the negative pressure in the ink cartridge 24 after the nozzle 23 stops spraying ink, so as to prevent the ink from seeping out through the nozzle 23.

[0032] In some embodiments, the ink delivery pipe is made of flexible material.

[0033] In some embodiments, the ink delivery pipe is made of flexible material.

[0034] In some embodiments, the ink path assembly 13 comprises a maintenance pump 135 and a solenoid valve assembly 136, the solenoid valve assembly 136 is electrically connected with the control assembly 12, the solenoid valve assembly 136 is provided with a first interface, a second interface and a third interface, the first interface is connected with the second end of the gas delivery pipe, the second interface is connected with the negative pressure tank 134, the third interface is connected with the maintenance pump 135, the solenoid valve assembly 136 is capable of switching between a first state and a second state, when the solenoid valve assembly 136 is in the first state, the first interface and the second interface are open, and the first interface and the third interface are closed, when the solenoid valve assembly 136 is in the second state, the first interface and the second interface are closed, and the first interface and the third interface are open. When it is necessary to maintain the negative pressure in the ink cartridge 24, the control assembly 12 controls the solenoid valve assembly 136 to switch to the first state, and the negative pressure tank 134 is communicated with the ink cartridge 24 through the second interface, the first interface and the gas delivery pipe, when the printing module 2 needs to be maintained, the control assembly 12 controls the solenoid valve assembly 136 to switch to the second state, and the maintenance pump 135 is communicated with the ink cartridge 24 through the third interface, the first interface and the gas delivery pipe, and the maintenance pump 135 is used to drive the ink in the ink cartridge 24 to be discharged from the ink cartridge 24 through the inkjet head 23.

[0035] It can be understood that different types of solenoid valves can be selected for the solenoid valve assembly 136 according to actual conditions, as long as they can be switched between the first state and the second state. For example, the solenoid valve assembly 136 can be a two-position two-way solenoid valve. The structure of the above-mentioned solenoid valve assembly 136 is a prior art, and those skilled in the art can understand it, so it will not be described in detail.

[0036] Please refer to Figure 3 and Figure 6 In some embodiments, the control cabinet 1 comprises a conversion block 3, the conversion block 3 is arranged in the cabinet body 11, the conversion block 3 is provided with a first conversion channel (not shown in the figure) and a second conversion channel (not shown in the figure), one end of the first conversion channel forms a first mounting port 311 on a first surface 31 of the conversion block 3 located outside the cabinet body 11, the other end of the first conversion channel forms a second mounting port 321 on a second surface 32 of the conversion block 3 located inside the cabinet body 11, one end of the second conversion channel forms a third mounting port 312 on the first surface 31, the other end of the second conversion channel forms a fourth mounting port 322 on the second surface 32, the second end of the ink delivery pipe and the second end of the gas delivery pipe are connected with the first mounting port 311 and the third mounting port 312 respectively, and the second mounting port 321 and the fourth mounting port 322 are connected with the output end of the ink pump and the first interface of the solenoid valve assembly 136 respectively.

[0037] In some embodiments, the first mounting port 311, the second mounting port 321, the third mounting port 312 and the fourth mounting port 322 are respectively provided with a first adapter 33, a second adapter 34, a third adapter 35 and a fourth adapter 36. The second end of the ink pipe is connected with the first mounting port 311 through the first adapter 33, and the output end of the ink pump 132 is connected with the second mounting port 321 through the second adapter 34. The second end of the gas pipe is communicated with the third mounting port 312 through the third adapter 35, and the fourth mounting port 322 is connected with the first interface of the electromagnetic valve assembly 136 through the fourth adapter 36.

[0038] In some embodiments, the ink path assembly 13 comprises a stop valve 137, which is arranged between the second end of the ink pipe and the output end of the ink pump 132. The stop valve 137 is used to control the opening and closing of the flow path.

[0039] In some embodiments, the ink path assembly 13 comprises a filter 138, which is arranged between the stop valve 137 and the output end of the ink pump 132. The filter 138 is used to filter impurities in the ink.

[0040] Please refer to Figure 3 and Figure 4 In some embodiments, the number of inkjet heads 23 is at least two, and the number of ink cartridges 24, the number of ink pipes, the number of stop valves 137, the number of filters 138, the number of ink pumps 132 and the number of ink barrels 131 are the same as and one-to-one corresponding to the number of inkjet heads 23.

[0041] Please refer to Figures 2-4 In some embodiments, the control cabinet 1 comprises an industrial computer 14 and a power supply assembly 15, and the connection cable comprises a first conductive wire, a second conductive wire and an optical fiber wire. The two ends of the first conductive wire are respectively connected with the printing control panel 25 and the control assembly 12. The two ends of the second conductive wire are respectively connected with the printing control panel 25 and the power supply assembly 15. The two ends of the optical fiber wire are respectively connected with the printing control panel 25 and the industrial computer 14. The industrial computer 14 is used to store printing software and machine action control software.

[0042] Please refer to Figure 1 In some embodiments, the control cabinet 1 comprises a human-computer interaction device, and the top end of the cabinet body 11 is provided with an operation platform, and the human-computer interaction device is arranged on the operation platform.

[0043] In some embodiments, the human-computer interaction device comprises a display screen 16, a mouse and a keyboard.

[0044] In some embodiments, the bottom end of the control cabinet 1 is provided with a universal wheel set 17, and the control cabinet 1 can move between different stations relative to the material moving platform 200 through the universal wheel set 17.

[0045] Please refer to Figure 2and Figure 3 In some embodiments, the cabinet 11 is provided with a receiving cavity a, and the control assembly 12 and the ink path assembly 13 are arranged in the receiving cavity a.

[0046] In some embodiments, the cabinet 11 includes a first partition 111 and a second partition 112, and a top wall 113 and a bottom wall 114 oppositely arranged along a first direction X. Along the first direction X, the first partition 111 is arranged between the top wall 113 and the bottom wall 114, and the first partition 111 divides the receiving cavity a into a first space a1 and a second space a2. The second partition 112 is arranged in the second space a2, and along a second direction Y, the second partition 112 divides the second space a2 into a third space a3 and a fourth space a4. The industrial computer 14 is arranged in the first space a1, the ink path assembly 13 is arranged in the third space a3, and the control assembly 12 and the power supply assembly 15 are arranged in the fourth space a4. The first direction X is perpendicular to the second direction Y.

[0047] In some embodiments, the universal wheel set 17 is arranged on a side of the bottom wall 114 away from the receiving cavity a, and a side of the top wall 113 away from the receiving cavity a forms an operation platform.

[0048] In some embodiments, the cabinet 11 includes a first side wall 115 and a second side wall 116 oppositely arranged along the second direction Y. The first side wall 115 is provided with a first cabinet door 1151, and the first cabinet door 1151 can be flipped open relative to the first side wall 115 to expose the third space a3. The second side wall 116 is provided with a second cabinet door 1161, and the second cabinet door 1161 can be flipped open relative to the second side wall 116 to expose the fourth space a4.

[0049] In some embodiments, the cabinet 11 includes a third side wall 117 and a fourth side wall 118 oppositely arranged along a third direction Z. The adapter block 3 is arranged through the third side wall 117, and along the direction from the top wall 113 to the bottom wall 114, a stop valve 137, a filter 138, and an ink pump 132 are sequentially arranged into a column and fixed to a side of the third side wall 117 facing the receiving cavity a. Each column is sequentially arranged along the second direction Y. The bottom wall 114 carries each ink tank 131.

[0050] In some embodiments, a negative pressure tank 134 is fixed to the side of the third side wall 117 facing the receiving cavity a, and a vacuum pump 133, a maintenance pump 135, and a solenoid valve assembly 136 are fixed to the side of the fourth side wall 118 facing the receiving cavity a.

[0051] Please refer to Figure 1 、 Figure 3 and Figure 5In some embodiments, the printing module comprises a first protective sleeve (not shown in the figure), two ends of the first protective sleeve are connected to the cabinet body 11 and the shell 21 respectively, and the ink delivery pipe and the gas delivery pipe are arranged in the first protective sleeve. The first protective sleeve protects the ink delivery pipe and the gas delivery pipe.

[0052] In some embodiments, the first protective sleeve comprises, but is not limited to, a bellows.

[0053] In some embodiments, the surface of the third side wall 117 facing away from the cavity is provided with a wire clamp 18, and one end of the first protective sleeve close to the control cabinet 1 is clamped and fixed to the wire clamp 18.

[0054] In some embodiments, the printing module comprises a second protective sleeve (not shown in the figure), two ends of the second protective sleeve are connected to the cabinet body 11 and the shell 21 respectively, and the connecting cable is arranged in the second protective sleeve.

[0055] In some embodiments, the second protective sleeve comprises, but is not limited to, a bellows.

[0056] Please refer to Figure 4 , Figure 5 and Figure 7 In some embodiments, the shell 21 comprises a main body 211 and a connecting part 212, the main body 211 is provided with a receiving cavity b, one end of the receiving cavity b is formed with a printing outlet, the ink cartridge 24, the nozzle 23 and the printing control board 25 are arranged in the receiving cavity b, the outlet of the nozzle 23 is arranged towards the printing outlet, the connecting part 212 is connected to the main body 211, the first end of the connecting part 212 protrudes from the main body 211, the second end of the connecting part 212 extends into the receiving cavity b, the connecting part 212 is provided with a wire slot c, the wire slot c is arranged along the first end of the connecting part 212 to the second end of the connecting part 212, the first end of the connecting part 212 is provided with a first bellows joint 2121 and a second bellows joint 2122, one end of the first protective sleeve away from the control cabinet 1 is connected to the first bellows joint 2121, the first end of the ink delivery pipe enters the wire slot c through the first bellows joint 2121, and then connects with the ink cartridge 24 after passing through the wire slot c, the first end of the gas delivery pipe enters the wire slot c through the first bellows joint 2121, and then connects with the ink cartridge 24 after passing through the wire slot c, one end of the second protective sleeve away from the control cabinet 1 is connected to the second bellows joint 2122, and one end of the connecting cable away from the control cabinet 1 enters the wire slot c through the second bellows joint 2122, and then enters the receiving cavity b after passing through the wire slot c.

[0057] Please refer to Figure 1 and Figure 5In some embodiments, the fixing assembly 22 comprises a fixing plate 221 and a sliding connection assembly 222, the fixing plate 221 is used to be fixed to the feeding platform 200, the sliding connection assembly 222 is connected with the fixing plate 221 and the shell 21, and the sliding connection assembly 222 is used to drive the shell 21 to reciprocate relative to the fixing plate 221. After the fixing plate 221 is fixed to the feeding platform 200, the sliding connection assembly 222 drives the shell 21 to reciprocate relative to the fixing plate 221 to adjust the printing height.

[0058] In some embodiments, a plurality of fixing holes (not shown in the figure) are arranged on the fixing plate 221, the fixing holes are used for the installation bolt to pass through, and the fixing plate 221 is screwed and fixed to the feeding platform 200.

[0059] It can be understood that the fixing manner of the printing module 2 to the feeding platform 200 is not limited to the bolt connection manner described above, and in other embodiments, the printing module 2 can also be fixed to the feeding platform 200 by clamping, welding and the like.

[0060] In some embodiments, the sliding connection assembly 222 comprises a screw lifting assembly 2221 and a hand wheel 2222, one end of the screw lifting assembly 2221 is connected with the shell 21, the other end is connected with the fixing plate 221, the hand wheel 2222 is connected with the screw rod of the screw lifting assembly 2221, and the shell 21 is driven to ascend or descend relative to the cross beam 203 of the feeding platform 200 by rotating the hand wheel 2222 to drive the screw rod to rotate.

[0061] In some embodiments, the outer wall of the shell 21 is fixed with a pointer 213, the side wall of the fixing plate 221 is provided with a scale 2211, and the pointer 213 and the scale 2211 are used to display the moving position of the shell 21 relative to the fixing plate 221. When the sliding connection assembly 222 drives the shell 21 to move relative to the fixing plate 221, the pointer 213 moves with the shell 21, thereby pointing to different scales of the scale 2211. After the shell 21 is adjusted to the required height, the operator records the scale of the scale 2211, and according to the recorded scale, the printing height can be quickly positioned in the next adjustment, which is beneficial to improve the work efficiency.

[0062] In some embodiments, the printing module 2 comprises a UV curing device 26, the UV curing device 26 is fixed to the shell 21, and the UV curing device is used to emit ultraviolet light to cure the ink sprayed by the nozzle 23.

[0063] Based on the same inventive concept, the application also provides a printing equipment 1000, which comprises a feeding platform 200 and the printing module in any of the above embodiments. The feeding platform 200 is used to carry and convey the objects to be printed. The printing module 2 is installed on the feeding platform 200.

[0064] In some embodiments, the feeding platform 200 comprises a support table 201, a conveying device 202 arranged on a support plane of the support table 201, and a crossbeam 203 fixed to the support table 201, the conveying device 202 being located between the support plane of the support table 201 and the crossbeam 203, and the printing module 2 being mounted on the crossbeam 203.

[0065] In some embodiments, the crossbeam 203 is provided with a sliding rail 2031 and a sliding block (not shown in the figure), and the fixing plate 221 is fixed to the sliding block, which is slidingly arranged on the crossbeam 203.

[0066] The above description is only an embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. A printing module, characterized in that: include: A control cabinet, comprising a cabinet body, a control assembly and an ink circuit assembly, wherein the control assembly and the ink circuit assembly are arranged in the cabinet body, and the ink circuit assembly comprises an ink barrel and an ink pump, wherein the ink barrel is connected to the ink pump; The printing module includes a housing, a fixing assembly, a nozzle, an ink cartridge, and a printing control board. The fixing assembly is connected to the housing and is used to be mounted on the feeding platform. The nozzle, the ink cartridge, and the printing control board are fixed to the housing, and the nozzle is connected to the ink cartridge. A connecting cable, one end of which is connected to the control component and the other end of which is connected to the printing control board; An ink delivery tube, wherein a first end of the ink delivery tube is connected to the ink cartridge, and a second end of the ink delivery tube is connected to an output end of the ink pump.

2. The printing module according to claim 1, characterized in that: The printing module includes an air supply pipe, the ink circuit assembly includes a vacuum pump and a negative pressure tank, the vacuum pump is connected to the negative pressure tank, the vacuum pump is electrically connected to the control assembly, the first end of the air supply pipe is connected to the ink cartridge, and the second end of the air supply pipe is connected to the negative pressure tank.

3. The printing module according to claim 2, characterized in that: The ink circuit assembly includes a maintenance pump and a solenoid valve assembly, which is electrically connected to the control assembly. The solenoid valve assembly is provided with a first interface, a second interface and a third interface. The first interface is connected to the second end of the air supply pipe, the second interface is connected to the negative pressure tank, and the third interface is connected to the maintenance pump. The solenoid valve assembly can switch between a first state and a second state. When the solenoid valve assembly is in the first state, the first interface and the second interface are connected, and the first interface and the third interface are disconnected. When the solenoid valve assembly is in the second state, the first interface and the second interface are disconnected, and the first interface and the third interface are connected.

4. The printing module according to claim 3, characterized in that: The control cabinet includes a transfer block, which is passed through the cabinet body. The transfer block is provided with a first transfer channel and a second transfer channel. One end of the first transfer channel forms a first mounting port on the first surface of the transfer block located outside the cabinet body, and the other end of the first transfer channel forms a second mounting port on the second surface of the transfer block located inside the cabinet body. One end of the second transfer channel forms a third mounting port on the first surface, and the other end of the second transfer channel forms a fourth mounting port on the second surface. The second end of the ink supply pipe and the second end of the air supply pipe are connected to the first mounting port and the third mounting port, respectively, and the second mounting port and the fourth mounting port are connected to the output end of the ink pump and the first interface, respectively.

5. The printing module according to claim 3, characterized in that: The printing module includes a first protective sleeve, the two ends of which are respectively connected to the cabinet and the shell, and the ink supply pipe and the air supply pipe are passed through the first protective sleeve; and / or The printing module includes a second protective sleeve, both ends of which are respectively connected to the cabinet and the shell, and the connecting cable is passed through the second protective sleeve.

6. The printing module according to claim 1, characterized in that: The control cabinet includes an industrial computer and a power supply assembly, and the connecting cable includes a first conductive wire, a second conductive wire and an optical fiber wire. The two ends of the first conductive wire are respectively connected to the printing control board and the control assembly, the two ends of the second conductive wire are respectively connected to the printing control board and the power supply assembly, and the two ends of the optical fiber wire are respectively connected to the printing control board and the industrial computer.

7. The printing module according to claim 1, characterized in that: The control cabinet includes a human-computer interaction device, an operating platform is provided on the top of the cabinet, and the human-computer interaction device is provided on the operating platform; and / or A universal wheel set is provided at the bottom end of the control cabinet.

8. The printing module according to claim 1, characterized in that: The fixing assembly includes a fixing plate and a sliding connection assembly, the fixing plate is used to be fixed to the feeding platform, the sliding connection assembly is connected to the fixing plate and the shell, and the sliding connection assembly is used to drive the shell to reciprocate relative to the fixing plate.

9. The printing module according to claim 8, characterized in that: A pointer is fixed on the outer wall of the shell, and a scale is provided on the side wall of the fixing plate. The pointer points to the scale, and the pointer and the scale are used to display the moving position of the shell relative to the fixing plate.

10. A printing device, characterized in that: include: The material feeding platform is used to carry and transport the material to be printed; The printing module according to any one of claims 1 to 9, wherein the printing module is mounted on the feeding platform.

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