CN115214244A

CN115214244A - Flat printing machine

Info

Publication number: CN115214244A
Application number: CN202210845796.5A
Authority: CN
Inventors: 吴福富; 刘川军; 张万慧
Original assignee: Shenfa Mechanical & Electrical Co ltd
Current assignee: Shenfa Mechanical & Electrical Co ltd
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2022-10-21
Anticipated expiration: 2042-07-19
Also published as: CN115214244B

Abstract

The invention discloses a flat printer which comprises an ink vehicle, a conveying device, an ink jet triggering assembly and an ink jet anti-collision assembly, wherein a spraying area is arranged below the ink vehicle, the ink vehicle comprises an ink jet assembly, the ink jet assembly is movable, and the ink jet assembly comprises at least one spray head; the conveying device is arranged below the ink car and comprises a conveying belt; the ink jet trigger assembly is connected with the ink vehicle and is used for recording the original position of the ink jet assembly and detecting whether the workpiece moves to a spraying area; the ink jet anti-collision component is connected with the ink vehicle and comprises a microswitch and an anti-collision part, the microswitch is connected with the anti-collision part, and the anti-collision part is used for contacting with a workpiece; wherein, the bottom of anticollision part is lower than the bottom of shower nozzle. If the descending height of the ink vehicle exceeds the set height, the anti-collision component contacts the workpiece earlier than the spray head, the micro switch generates a signal, the plane printing machine is stopped, and the spray head is prevented from mistakenly contacting the workpiece. The invention can be widely applied to the technical field of spray printing.

Description

Flat printing machine

Technical Field

The invention relates to the technical field of spray printing, in particular to a plane printing machine.

Background

The spraying is a printing process for coating and curing the surface of a workpiece, the workpiece is conveyed to the lower part of an ink car by a conveying device, and the ink car can move to be close to the workpiece to finish the spraying. In the process of conveying the workpiece at high speed by the conveying device, the workpiece may jump and the conveying may be unstable, so that the printed patterns are deviated. Due to the property of the paint itself that it is easily solidified, the paint remaining in the head may be solidified to cause clogging of the head. In addition, the ink car may mistakenly touch the workpiece in the moving process, damage the workpiece or the ink car, and may also cause coating to drip due to mistakenly touching vibration, which affects the printing effect.

Disclosure of Invention

In order to solve at least one of the above technical problems, the present invention provides a flat printing machine, which adopts the following technical solution.

The flat printer provided by the invention comprises an ink vehicle, a conveying device, an ink jet triggering assembly and an ink jet anti-collision assembly, wherein a spraying area is arranged below the ink vehicle, the ink vehicle comprises an ink jet assembly, the ink jet assembly is movable, and the ink jet assembly comprises at least one spray head; the conveying device is arranged below the ink vehicle and comprises a conveying belt; the ink jet trigger component is connected with the ink car and is used for recording the original point position of the ink jet component and detecting whether a workpiece moves to the spraying area; the ink jet anti-collision assembly is connected with the ink vehicle and comprises a microswitch and an anti-collision component, the microswitch is connected with the anti-collision component, and the anti-collision component is used for contacting with a workpiece; wherein the bottom of the anti-collision component is lower than the bottom of the spray head.

In some embodiments of the invention, the ink jet trigger assembly comprises a photosensor.

In some embodiments of the present invention, the carriage includes a first photocurable component coupled to the inkjet assembly.

In some embodiments of the present invention, the spray heads are provided in plural, each spray head is provided at intervals along the conveying direction of the conveying device, the first light-curing member is provided in plural, and the position of each first light-curing member corresponds to the position of each spray head.

In some embodiments of the invention, the flat printing press comprises a second light-curing component arranged at the output end of the conveying device, and the second light-curing component is used for light-curing the sprayed workpiece.

In some embodiments of the present invention, the carriage includes a moisturizing pad and a moisturizing base, the moisturizing pad is disposed on the moisturizing base, and the moisturizing base is connected with the carriage; in the event of a stoppage of the flat bed printing press, the ink jet module is moved to the moisturizing pad.

In some embodiments of the invention, the conveying belt is provided with a plurality of negative pressure adsorption holes, the conveying device comprises a side edge pressing piece, the side edge pressing piece is arranged at the edge of the conveying belt along the conveying direction of the conveying device, and the side edge pressing piece is used for pressing against the upper side of the conveying belt.

In some embodiments of the invention, the conveyor comprises stop rollers located on the upper side of the conveyor belt edge.

In some embodiments of the present invention, the ink vehicle includes a spraying lifting assembly, the spraying lifting assembly includes a spraying lifting screw rod, a spraying lifting driver and a spraying lifting moving block, the spraying lifting screw rod is connected with the spraying lifting moving block through a screw thread, the spraying lifting moving block is connected with the ink jet assembly, and an output end of the spraying lifting driver is connected with the spraying lifting screw rod.

In some embodiments of the invention, the ink vehicle comprises a spraying telescopic assembly, the spraying telescopic assembly comprises a spraying telescopic lead screw, a spraying telescopic driver and a spraying telescopic moving block, the spraying telescopic lead screw is in threaded connection with the spraying telescopic moving block, the spraying telescopic moving block is connected with the ink jet assembly, and the output end of the spraying telescopic driver is connected with the spraying lifting assembly.

The embodiment of the invention has at least the following beneficial effects: the china ink car is provided with inkjet anticollision subassembly, and inkjet anticollision subassembly's anticollision part is less than the position of shower nozzle, and consequently the china ink car is at the decline in-process, if the height that the china ink car descends exceeds the settlement height, anticollision part can be than the shower nozzle and contact the work piece earlier, and micro-gap switch can produce the signal, and the plane printing machine is shut down, prevents that the shower nozzle mistake of china ink car from touching the work piece. The invention can be widely applied to the technical field of spray printing.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings.

Fig. 1 is a block diagram of a flat bed printing press.

Fig. 2 is a structural view of the conveying device.

Fig. 3 is a partial view of the area a in fig. 2.

Fig. 4 is a structural view of the ink carriage.

Fig. 5 is a partial view of the area B in fig. 4.

Fig. 6 is a structural view of the flat printer.

Fig. 7 is a structural view of a moisturizing pad and a moisturizing base.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that if the terms "center", "middle", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., are used in an orientation or positional relationship indicated based on the drawings, it is merely for convenience of description and simplicity of description, and it is not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore, is not to be considered as limiting the present invention. The features defined as "first" and "second" are used for distinguishing feature names rather than having special meanings, and further, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The invention relates to a flat printing machine, comprising an ink trolley 100 and a conveying device 200, wherein a spraying area is arranged below the ink trolley 100, and the conveying device 200 is arranged below the ink trolley 100, and can be understood as the conveying device 200 is used for conveying workpieces to the spraying area.

The ink vehicle 100 includes an ink jet assembly 101, the ink jet assembly 101 is movable to enable the ink jet assembly 101 to be adjacent to a workpiece, the ink jet assembly 101 includes at least one nozzle, the nozzle is capable of spraying paint to the workpiece, and the ink jet assembly 101 is capable of retracting after ink is sprayed. In some examples, the plurality of heads are provided, and each head is spaced apart along the conveying direction of the conveying device 200, and accordingly, the carriage 100 includes a plurality of ink cartridges, each of which is correspondingly communicated with each head through an oil path, and further, each of the ink cartridges is used to store the paints of different colors, respectively.

The coating is made of a light curable material, and it will be understood that the carriage 100 includes a first light curable component coupled to the ink jet assembly 101 for irradiating the coating on the surface of the workpiece to accelerate the curing of the coating. In some examples, the first light curing component includes an LED lamp. In some examples, the first light-curing part is provided in a plurality, and the position of each first light-curing part corresponds to the position of each spray head, and it can be understood that when each spray head finishes spraying and printing the workpiece, the corresponding first light-curing part performs one light-curing treatment on the workpiece.

Further, the flat printing machine comprises a second light curing part 105, the second light curing part 105 is arranged at the output end of the conveying device 200, the second light curing part 105 is connected with the conveying device 200 or the second light curing part 105 is connected with a frame of the flat printing machine, and the second light curing part 105 is used for light curing the sprayed workpiece. Specifically, the second light curing member 105 includes an LED lamp. It is to be understood that the second photocurable component 105 can perform a one-time overall curing process on the workpiece after the workpiece has been spray printed in the spray area.

The ink vehicle 100 includes a spraying lifting assembly, the ink jet assembly 101 is connected to the spraying lifting assembly, and the spraying lifting assembly is configured to lift and move the ink jet assembly 101 so as to enable the ink jet assembly 101 to approach or move away from the upper side of the workpiece. Specifically, the spraying lifting assembly adopts the screw pair to drive the ink jet assembly 101 to lift, and it can be understood that the moving speed of the ink jet assembly 101 is slow and controllable under the transmission of the screw pair, so that the ink jet assembly 101 can be prevented from being touched by mistake.

It can be understood that, the spraying lifting assembly comprises a spraying lifting lead screw, a spraying lifting driver 108 and a spraying lifting moving block, the spraying lifting lead screw is in threaded connection with the spraying lifting moving block, the spraying lifting moving block is connected with the ink jet assembly 101, the spraying lifting driver 108 is set as a motor, the output end of the spraying lifting driver 108 is connected with the spraying lifting lead screw, and the spraying lifting driver 108 can drive the spraying lifting lead screw to rotate.

The spraying lifting assembly comprises a spraying lifting mounting seat, the spraying lifting driver 108 is connected with the spraying lifting mounting seat, one end of the spraying lifting screw rod is connected with the output end of the spraying lifting driver 108, and the other end of the spraying lifting screw rod is rotatably connected with the spraying lifting mounting seat. Further, in order to stably lift the inkjet assembly 101, the spraying lifting assembly includes a spraying lifting guide member, and the spraying lifting moving block is movably connected with the spraying lifting guide member. Specifically, the spraying lifting guide part is connected with the spraying lifting mounting seat and is arranged into a guide rod or a guide rail.

In some examples, the ink vehicle 100 includes a spray telescopic assembly 109, the spray lifting assembly is connected to the spray telescopic assembly 109, and the spray telescopic assembly 109 is configured to move the inkjet assembly 101 back and forth to move the inkjet assembly 101 above the workpiece. Specifically, the spraying telescopic assembly 109 adopts screw pair transmission, the transmission speed is slow and controllable, and the error touch of the ink jet assembly 101 can be avoided.

Specifically, the spraying telescopic assembly 109 comprises a spraying telescopic lead screw, a spraying telescopic driver and a spraying telescopic moving block, the spraying telescopic lead screw is in threaded connection with the spraying telescopic moving block, the spraying telescopic moving block is connected with the ink jet assembly 101, the spraying telescopic driver is set to be a motor, the output end of the spraying telescopic driver is connected with the spraying lifting assembly, and the spraying telescopic driver can drive the spraying telescopic lead screw to rotate.

The flexible subassembly 109 of spraying includes the flexible mount pad of spraying, and the flexible driver of spraying is connected with the flexible mount pad of spraying, and the one end of the flexible lead screw of spraying is connected with the output of the flexible driver of spraying, the other end is connected with the flexible mount pad of spraying. Further, in order to make the inkjet assembly 101 and the spraying elevating assembly move smoothly, the spraying telescopic assembly 109 includes a spraying telescopic guide 110, and the spraying telescopic moving block is movably connected with the spraying telescopic guide 110. Specifically, the painting telescopic guide 110 is connected to the painting telescopic mounting base, and the painting telescopic guide 110 is configured as a guide rod or a guide rail.

In order to prevent the coating in the nozzle from solidifying and causing blockage when the flat printing machine is stopped, the ink vehicle 100 is designed to comprise a moisturizing pad 106, and the moisturizing pad 106 is arranged at the lower part of the ink vehicle 100. It will be appreciated that in the event of a stoppage of the flat-bed printing machine, the ink jet assembly 101 moves to the moisturizing pad 106, and the moisturizing pad 106 prevents the paint from solidifying.

Specifically, the ink vehicle 100 comprises a moisturizing base 107, the moisturizing pad 106 is arranged on the moisturizing base 107, the moisturizing base 107 is connected with the ink vehicle 100, and the moisturizing base 107 is arranged at the lower part of the ink vehicle 100. It will be appreciated that after retraction of the ink jet assembly 101, and lowering to the moisturizing pad 106, the nozzle is depressed until it contacts the moisturizing pad 106.

Further, in order to realize the flexible contact between the spray head and the moisturizing pad 106, the moisturizing base 107 is provided with an elastic member for supporting the moisturizing base 107 or the elastic member for supporting the moisturizing pad 106. In some examples, the resilient member is provided as a spring.

In some examples, the moisturizing base 107 is provided with a guide groove, and waste ink on the head can drop into the guide groove of the moisturizing base 107 so as to collect the waste ink. Further, the moisturizing base 107 is provided with a waste ink discharge port.

The flat printer comprises an ink jet trigger assembly 102, wherein the ink jet trigger assembly 102 is connected with the ink trolley 100, specifically, the ink jet trigger assembly 102 is connected with the ink jet assembly 101, and the ink jet trigger assembly 102 is used for recording the origin position of the ink jet assembly 101 and detecting whether a workpiece exists in a spraying area. Before the flat-bed printing machine is operated, an operator debugs the equipment to determine the origin position of the ink jet assembly 101, and the control module can record the origin position of the ink jet assembly 101, so that the ink jet assembly 101 can automatically move to the origin position in the operation process of the flat-bed printing machine.

Specifically, the inkjet triggering assembly 102 includes a photoelectric sensor disposed on one side of the conveying device 200, and if the workpiece on the conveying device 200 is conveyed to the spraying area, the photoelectric sensor can generate a signal, and the control module of the flatbed printing machine can start the carriage 100 to start spraying according to the signal.

To prevent the nozzle from accidentally touching the workpiece, the flat-bed printer includes an inkjet crash module that is connected to the carriage 100. It will be appreciated that during lowering of the ink jet module 101, if the ink jet bumper module contacts the workpiece, the flat bed printer is stopped and the ink jet module 101 stops lowering. Specifically, the inkjet anticollision subassembly is connected with inkjet subassembly 101, and the inkjet anticollision subassembly includes micro-gap switch 103 and anticollision part 104, and micro-gap switch 103 and plane printing machine's control module communication connection, and micro-gap switch 103 is connected with anticollision part 104, and anticollision part 104 is used for contacting with the work piece.

Further, the bottom of the anti-collision component 104 is lower than the bottom of the spray head, and it can be understood that in the descending process of the ink jet assembly 101, if the anti-collision component 104 contacts with a workpiece, it is indicated that the descending position of the ink jet assembly 101 exceeds a set height, and a risk of false touch exists, the anti-collision component 104 drives the micro switch 103 to generate a signal, and the control module controls the spray lifting assembly to stop running, so that the spray head is protected.

The conveying device 200 comprises a conveying belt 201, and with reference to the drawings, the conveying device 200 comprises a device support 205, the conveying belt 201 is arranged on the device support 205, specifically, the conveying device 200 comprises a belt wheel and a conveying driver, the two ends of the device support 205 are respectively provided with the belt wheel, the belt wheel is used for tensioning the conveying belt 201, the conveying driver is connected with the device support 205, the conveying driver is provided with a motor, and the conveying driver is in transmission connection with one of the belt wheels. It can be understood that the conveyor belt 201 can circulate under the action of the conveyor driver to realize the conveying of the workpieces.

Further, to accurately control the running speed of the conveyor belt 201, the conveyor 200 includes an encoder connected to the apparatus frame 205, the encoder abutting against the conveyor belt 201, the encoder detecting the speed of the conveyor belt 201. In some examples, the conveyor belt 201 is provided as a timing belt and, correspondingly, the pulleys are provided as timing gears so that the running speed of the conveyor belt 201 can be accurately controlled.

In order to prevent the workpiece from shifting on the conveyor belt 201 and ensure accurate spraying, the conveyor belt 201 fixes the workpiece by adopting a negative pressure suction mode. Specifically, the conveying belt 201 is provided with a plurality of negative pressure adsorption holes 202, the negative pressure adsorption holes 202 are distributed on the conveying belt 201 in an array, a negative pressure cavity is arranged in the device support 205, and the negative pressure adsorption holes 202 can be communicated with the negative pressure cavity. It can be understood that the negative pressure cavity is externally connected with a negative pressure generator which is set as an air compressor or a vacuum pump.

The conveyor 200 comprises a side edge press 203, the side edge press 203 being adapted to press against the upper side of the edge of the conveyor belt 201. It can be understood that, on one hand, the side edge pressing piece 203 can press the conveying belt 201 to prevent the conveying belt 201 from raising the edge, ensure the attachment between the conveying belt 201 and the device bracket 205, avoid the bulge or the bulge and prevent the jumping of the workpiece in the conveying process; on the other hand, the side pressing piece 203 can prevent the negative pressure from leaking after pressing the edge of the conveyer belt 201.

Specifically, the side edge pressing piece 203 is connected with the device bracket 205, the side edge pressing piece 203 is arranged at the edge of the conveying belt 201 along the conveying direction of the conveying device 200, and with reference to the attached drawings, the side edge pressing piece 203 is arranged as a pressing plate, the pressing plate is arranged to be long-strip-shaped, and the long edges of the conveying belt 201 opposite to each other are respectively provided with the side edge pressing piece 203.

The side pressing members 203 are connected to the device bracket 205 by a plurality of connecting members, which are configured as screws or bolts. Further, the side press 203 is provided with a kidney-shaped hole so that the installation position of the side press 203 is adjusted according to the width of the conveyor belt 201.

It will be appreciated that after the connectors are locked, a gap is left between the side edge pressing member 203 and the device holder 205 to prevent the side edge pressing member 203 from over-pressing the conveyor belt 201. In some examples, the underside of the side pressing piece 203 is provided with a protruding structure to leave a gap between the side pressing piece 203 and the device bracket 205 after installation. In some examples, a spacer structure is sleeved on the connecting member between the side pressing member 203 and the device holder 205.

Further, the conveying device 200 comprises a limit rolling member 204, the limit rolling member 204 is connected with the device bracket 205, the limit rolling member 204 is positioned on the upper side of the edge of the conveying belt 201, and the limit rolling member 204 is in contact with the surface of the conveying belt 201. In particular, the limit rolling element 204 is provided as a roller or rolling bearing. It can be understood that, during the operation of the conveying device 200, the limit roller 204 can roll on the surface of the conveying belt 201, and the limit roller 204 has a pressing effect on the edge of the conveying belt 201 to prevent the conveying belt 201 from warping.

In some examples, a plurality of limit rolling elements 204 are disposed on two side edges of the conveying belt 201 along the conveying direction of the conveying device 200, and the limit rolling elements 204 are disposed at intervals to achieve pressing on multiple positions of the side edge of the conveying belt 201.

Referring to the drawings, the conveying device 200 includes a limit mounting seat 206, the limit mounting seat 206 is connected to the device bracket 205, the limit rolling element 204 is rotatably connected to the limit mounting seat 206, and specifically, at least one limit rolling element 204 is disposed on the limit mounting seat 206. It is understood that a plurality of limit mounting seats 206 are respectively arranged on the long sides of the conveying belt 201. Further, the limit mount 206 is provided with a kidney-shaped hole so that the position of the limit mount 206 is adjusted according to the width of the conveyor belt 201.

Further, the conveying device 200 includes a lifting and lowering adjusting seat 207, and the lifting and lowering adjusting seats 207 are respectively disposed at both sides of the device bracket 205, and it can be understood that the lifting and lowering adjusting seats 207 are used for adjusting the heights of the device bracket 205 and the conveying belt 201. Referring to the drawings, a plurality of elevation adjusting bases 207 are disposed at a side of the apparatus bracket 205, and the elevation adjusting bases 207 are spaced apart from each other.

Specifically, the lift adjusting base 207 is provided with a lift rod capable of lifting, and the lift rod is connected to the device bracket 205. It will be appreciated that the lift adjustment mount 207 includes a lift drive coupled to a lift rod, the lift drive configured as a cylinder or motor.

In the description of the present specification, reference to the terms "one embodiment," "some examples," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" or the like, if any, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

In the description of the present invention, the appearances of the patent names and phrases in the specification are not necessarily the same but are different. For example, the patent names "a and B" illustrate that the claimed invention is: the subject name is A and the subject name is B.

Claims

1. A flat printing press, characterized by: comprises that

An ink vehicle (100), a spraying area is arranged below the ink vehicle (100), the ink vehicle (100) comprises an ink jet assembly (101), the ink jet assembly (101) is movable, and the ink jet assembly (101) comprises at least one spray head;

a transport device (200) disposed below the carriage (100), the transport device (200) including a conveyor belt (201);

the ink jet trigger assembly (102), the ink jet trigger assembly (102) is connected with the ink vehicle (100), and the ink jet trigger assembly (102) is used for recording the origin position of the ink jet assembly (101) and detecting whether a workpiece moves to the spraying area;

the ink jet anti-collision assembly is connected with the ink vehicle (100), the ink jet anti-collision assembly comprises a micro switch (103) and an anti-collision component (104), the micro switch (103) is connected with the anti-collision component (104), and the anti-collision component (104) is used for contacting with a workpiece;

wherein the bottom of the anti-collision component (104) is lower than the bottom of the spray head.

2. The flat printing machine according to claim 1, wherein: the inkjet trigger assembly (102) includes a photosensor.

3. Flat printing machine according to claim 1, characterized in that: the carriage (100) includes a first photocurable component coupled to the inkjet assembly (101).

4. Flat printing machine according to claim 3, characterized in that: the spray heads are arranged in a plurality, the spray heads are arranged at intervals along the conveying direction of the conveying device (200), the first light curing components are arranged in a plurality, and the positions of the first light curing components correspond to the positions of the spray heads.

5. The flat printing machine according to claim 4, wherein: the plane printing machine comprises a second light curing part (105), the second light curing part (105) is arranged at the output end of the conveying device (200), and the second light curing part (105) is used for light curing the sprayed workpiece.

6. The flat printing machine according to claim 1, wherein: the ink vehicle (100) comprises a moisturizing pad (106) and a moisturizing base (107), the moisturizing pad (106) is arranged on the moisturizing base (107), and the moisturizing base (107) is connected with the ink vehicle (100); in the event of a stoppage of the flat bed printing machine, the ink jet module (101) is moved to the moisture retention mat (106).

7. The flat printing machine according to claim 1, wherein: the conveying belt (201) is provided with a plurality of negative pressure adsorption holes (202), the conveying device (200) comprises a side pressing piece (203), the side pressing piece (203) is arranged at the edge of the conveying belt (201) along the conveying direction of the conveying device (200), and the side pressing piece (203) is used for abutting against the upper side of the conveying belt (201).

8. The flat printing press according to claim 1 or 8, wherein: the conveying device (200) comprises a limiting rolling piece (204), and the limiting rolling piece (204) is located on the upper side of the edge of the conveying belt (201).

9. Flat printing machine according to claim 1, characterized in that: the ink car (100) comprises a spraying lifting assembly, the spraying lifting assembly comprises a spraying lifting screw rod, a spraying lifting driver (108) and a spraying lifting moving block, the spraying lifting screw rod is in threaded connection with the spraying lifting moving block, the spraying lifting moving block is connected with the ink jet assembly (101), and the output end of the spraying lifting driver (108) is connected with the spraying lifting screw rod.

10. The flat printing press according to claim 9, wherein: the ink car (100) comprises a spraying telescopic assembly (109), the spraying telescopic assembly (109) comprises a spraying telescopic lead screw, a spraying telescopic driver and a spraying telescopic moving block, the spraying telescopic lead screw is in threaded connection with the spraying telescopic moving block, the spraying telescopic moving block is connected with the ink jet assembly (101), and the output end of the spraying telescopic driver is connected with the spraying lifting assembly.