Ink-jet printer with ink scraping structure

Abstract

An ink jet printer with an ink scraping structure comprises a feeding device, a pressing device, a vacuum adsorption device, a visual device, an automatic cleaning device, an automatic ink scraping device and a printing device, the printing device comprises an ink jet structure, a driving structure, a track structure and the ink scraping structure, and the ink jet structure is installed on the track structure. The driving structure drives the ink jetting structure to move in multiple directions on the track structure, the ink scraping structure is provided with a soft scraping piece and a base, and the soft scraping piece is vertically installed on the base. After the printer works for a certain time, ink can be automatically scraped, the phenomenon that the printing effect of the printer is affected due to the fact that ink on a nozzle of the ink jetting structure is accumulated is avoided, and if the printer is a colored printer, mutual influence of different colors can be avoided through the ink scraping structure, so that the printing color of a sheet stock is purer; compared with the prior art, the overall printing quality is improved.

Description

Technical Field

[0001] The utility model belongs to the field of marking tools for shoes, clothing and luggage, and particularly relates to an inkjet printer with an ink scraping structure. Background Art

[0002] For existing leather or textile products such as shoes, clothing and luggage, the leather or fabric needs to be cut into various irregularly shaped pieces first and then spliced together by sewing or bonding. Without markings, the positions will shift during manual operation, resulting in various shapes being spliced. Therefore, markings are generally required at the sewing or bending positions. That is, a line drawing machine is used to make markings on the pieces by inkjet. Although the line drawing machine has a good speed for drawing lines, its speed for planar pattern structures is relatively slow. Therefore, printers with multiple nozzles for patterns have been developed. However, after multiple nozzles work for a period of time, a lot of ink will remain on the nozzles. After accumulating a certain amount, it will be ejected onto the pieces following the air flow, interfering with the lines or patterns on the pieces, or even directly dripping onto the pieces, disturbing normal marking or printing. In addition, the ink may dry and block the nozzles. Summary of the Utility Model

[0003] Aiming at the above-mentioned prior art, the purpose of the utility model is to provide an inkjet printer with an ink scraping structure that can automatically scrape the residual ink on the nozzles.

[0004] The technical solution of the utility model is realized as follows: an inkjet printer with an ink scraping structure includes a feeding device, a material pressing device, a vision device and a printing device. The printing device includes an inkjet structure, a driving structure, a track structure and an ink scraping structure. The inkjet structure is installed on the track structure. The driving structure drives the inkjet structure to move in multiple directions on the track structure. The ink scraping structure is provided with a soft scraping blade and a base, and the soft scraping blade is vertically installed on the base.

[0005] The beneficial effect of such a design is that after the printer works for a certain period of time, ink scraping can be automatically carried out to avoid the accumulation of ink on the nozzles of the inkjet structure, which affects the printing effect of the printer. If it is a color printer, the ink scraping structure can also avoid the mutual influence of different colors, making the colors of the printed pieces more pure. Compared with the prior art, the overall printing quality is improved.

[0006] Further, the track structure includes a third track and a second track that are perpendicular to each other in the horizontal direction and a first track in the vertical direction. The first track is driven by a first reduction motor, the second track is driven by a second reduction motor, and the third track is driven by a third reduction motor. In this way, any position on the platform can be printed using the track structure, and ink scraping and maintenance can also be directly carried out using the track structure.

[0007] Furthermore, the first rail includes a first slide rail, a second slide rail, a slide block, and a lead screw. The lead screw is arranged in the vertical direction. The inkjet structure is fixed on the slide block. The slide block is matched with the first slide rail and the second slide rail, and the slide block is installed together in a manner that can slide relative to the first slide rail and the second slide rail. The slide block is provided with a threaded hole that matches the lead screw. The first reduction motor drives the lead screw to rotate through a reduction drive structure. In this way, the inkjet structure follows the slide block to achieve vertical movement. The first reduction motor uses a servo motor, which can accurately move to the specified height and achieve precise positioning during printing or ink scraping.

[0008] Furthermore, the second rail includes an upper slide rail, a lower slide rail, a mounting seat plate, a driving wheel, a driving belt, and a transmission wheel. The second reduction motor drives the transmission wheel to rotate through belt drive or chain drive. The transmission wheel and the driving wheel are coaxially arranged to achieve transmission. The mounting seat plate is installed on the upper slide rail and the lower slide rail in a manner that can slide relative to the upper slide rail and the lower slide rail. The first rail is integrally fixed on the mounting seat plate. The driving wheel rotates relative to the driving belt, which can drive the mounting seat plate to move along the upper slide rail and the lower slide rail. In this way, the inkjet structure can achieve stable lateral movement, and the printing range is wider. It can move to the position of the ink scraping structure for ink scraping.

[0009] Furthermore, the third rail includes a left slide rail, a right slide rail, a left bracket, and a right bracket. The second rail is installed on a cross beam, and both ends of the cross beam are respectively fixed to the left bracket and the right bracket. The left bracket can linearly move along the left slide rail, and the right bracket can linearly move along the right slide rail. The left bracket or the right bracket is provided with a third reduction motor, and the third reduction motor drives the left bracket and the right bracket through belt drive or chain drive. Through the cooperation of the third rail, the first rail, and the second rail, the ink scraping structure realizes movement in the X, Y, and Z axes. An ink scraping structure can be set within the movement range to achieve automatic ink scraping.

[0010] Furthermore, one side of the base is installed on a positioning slide rail in the horizontal direction, so that the base is suspended above the edge position of the feeding device. One end of the base is fixed to a cylinder, so that the cylinder can drive the base to move linearly quickly. The suspended design is convenient for installation. On the one hand, it does not affect the space of the printing platform, and on the other hand, it allows the ink scraping structure to enter the working range of the inkjet structure.

[0011] Furthermore, the feeding device is provided with a conveying structure capable of intermittently moving the sheet material a certain distance; the pressing device is provided with a pressing structure to make the conveyed sheet material flatter; the vision device is provided with a camera capable of identifying the image or contour of the sheet material in a certain area or position on the feeding device; the printing device is provided with an inkjet structure and a track structure capable of moving the inkjet structure to a specified position according to the image or contour identified by the vision device for printing various patterns or marking the process position lines; under the conveyance of the feeding device, the sheet material reaches the vision device position after passing through the pressing device for image recognition and line or pattern printing. The pressing device presses the sheet material flat, making the photographing recognition and printing accuracy higher. The use of the track can achieve a larger printing range, reduce the number of inkjet structures of the printing device, lower the cost of the printing device, make the utilization rate of the printing device higher. The intermittent movement mechanism can manually screen the sheet material when placing the sheet material, directly remove the sheet materials with larger deformation, and the sheet materials with smaller deformation can be pressed by the pressing device to make the sheet material flatter. The camera can obtain images by taking pictures and identify the images. In this way, the angle and position of the sheet material placement are determined by quickly identifying the contour of the sheet material, and the printing device is started to perform the preset pattern or line printing.

[0012] Furthermore, the pressing device at least includes a heating device and a pressing device. The pressing device is a pressing roller capable of rolling the sheet material, making the sheet material flatter.

[0013] Furthermore, the feeding device is provided with a printing platform. The printing platform is provided with a negative pressure box body. The negative pressure box body is provided with an adsorption plate, and the adsorption plate is provided with a plurality of adsorption holes. The negative pressure box body is connected to a negative pressure fan through a pipeline, making the air pressure in the negative pressure box body lower than the atmospheric pressure. In this way, the sheet material is flatly adsorbed on the printing platform under the action of air flow and atmospheric pressure, and the printing effect is better.

[0014] Furthermore, the inkjet structure is provided with a red ink cartridge, a blue ink cartridge, a yellow ink cartridge, and a black ink cartridge. The red ink cartridge, the blue ink cartridge, the yellow ink cartridge, and the black ink cartridge are arranged in two rows and two columns, so that the color printing function can be realized.

[0015] Furthermore, a rubber pad is provided above the printing platform. The rubber pad is provided with a rectangular groove matching the inkjet structure, so that a closed state can be formed after the inkjet structure is inserted into the rubber groove. In this way, during the working interval, the inkjet structure can be moved to the rubber groove position to seal the inkjet structure, reduce the evaporation of ink, and prevent the nozzle from being blocked, which is especially suitable for printers with intermittent work. Description of the Drawings

[0016] Figure 1 Isometric schematic diagram of an inkjet printer with a scraping structure of the present invention removing the housing;

[0017] Figure 2Another perspective three-dimensional schematic diagram of an inkjet printer with an ink scraping structure according to the present utility model;

[0018] Figure 3 Side schematic diagram of the printing device of an inkjet printer with an ink scraping structure according to the present utility model;

[0019] Figure 4 Schematic diagram of the printing device of an inkjet printer with an ink scraping structure according to the present utility model in the ink scraping position;

[0020] Figure 5 Schematic diagram of the printing device of an inkjet printer with an ink scraping structure according to the present utility model not in the ink scraping position;

[0021] Figure 6 Schematic diagram of the installation of the sliding seat of an inkjet printer with an ink scraping structure according to the present utility model. Detailed implementation manners

[0022] As required, detailed embodiments of the present utility model are disclosed herein, but it should be understood that the disclosed embodiments are only illustrative of the present utility model, and the present utility model can be implemented in different and alternative forms. The drawings are not necessarily drawn to scale, and some features may be exaggerated or reduced to show details of specific components. Therefore, the specific structural and functional details disclosed herein should not be construed as limiting, but only as a representative basis for teaching those skilled in the art to implement the present utility model differently. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0023] The feeding device and the vision device of the present utility model can be set with reference to the prior art, and can not only draw lines but also print patterns. The inkjet printer with an ink scraping structure of the present utility model is improved based on a traditional line drawing machine, replacing a machine that can only draw lines alone. Substantially the same as a printer, it can directly print color patterns.

[0024] As shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 An inkjet printer with an ink scraping structure includes a feeding device 1, a material pressing device 2, a vision device 4 and a printing device 3. The printing device 3 includes an inkjet structure 6, a driving structure 7, a track structure 8 and an ink scraping structure 9. The inkjet structure 6 is installed on the track structure 8, and the driving structure 7 drives the inkjet structure 6 to move in multiple directions on the track structure 8. The ink scraping structure 9 is provided with a soft scraping blade 91 and a base 92, and the soft scraping blade 91 is vertically installed on the base 92. The vision device 4 is installed directly above the printing platform 11.

[0025] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 shown, the track structure 8 includes a third track 83 and a second track 82 perpendicular to each other in the horizontal direction and a first track 81 in the vertical direction. The first track 81 is driven by a first reduction motor 84, the second track 82 is driven by a second reduction motor 85, and the third track 83 is driven by a third reduction motor 86.

[0026] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 shown, the first track 81 includes a first slide rail 19, a second slide rail 18, a slide seat 17 and a lead screw 16. The lead screw 16 is arranged in the vertical direction. The inkjet structure 6 is fixed on the slide seat 17. The slide seat 17 matches the first slide rail 19 and the second slide rail 18. The slide seat 17 is installed together in a manner that can slide relative to the first slide rail 19 and the second slide rail 18. The slide seat 17 is provided with a threaded hole matching the lead screw 16. The first reduction motor 84 drives the lead screw 16 to rotate through a reduction transmission structure.

[0027] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 shown, the second track 82 includes an upper slide rail 29, a lower slide rail 28, a mounting seat plate 27, a driving wheel 26, a driving belt 25 and a transmission wheel 24. The second reduction motor 85 drives the transmission wheel 24 to rotate through a belt drive or a chain drive. The transmission wheel 24 and the driving wheel 26 are coaxially arranged to achieve transmission. The mounting seat plate 27 is installed on the upper slide rail 29 and the lower slide rail 28 in a manner that can slide relative to the upper slide rail 29 and the lower slide rail 28. The first track 81 is integrally fixed on the mounting seat plate 27. The relative rotation of the driving wheel 26 with respect to the driving belt 25 can drive the mounting seat plate 27 to move along the upper slide rail 29 and the lower slide rail 28.

[0028] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the third track 83 includes a left slide rail 31, a right slide rail 32, a left bracket 33, and a right bracket 34. The second track 82 is installed on a cross beam 35, and both ends of the cross beam 35 are respectively fixed to the left bracket 33 and the right bracket 34. The left bracket 33 can linearly move along the left slide rail 31, and the right bracket 34 can linearly move along the right slide rail 32. The left bracket 33 or the right bracket 34 is provided with a third reduction motor 86, and the third reduction motor 86 drives the left bracket 33 and the right bracket 34 through belt drive or chain drive.

[0029] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, one side of the base 92 is installed on a positioning slide rail 93 in the horizontal direction, so that the base 92 is suspended above the edge position of the feeding device 1. One end of the base 92 is fixed to a cylinder 94, so that the cylinder 94 can drive the base 92 to move quickly in a straight line.

[0030] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the feeding device 1 is provided with a conveying structure capable of intermittently moving the sheet material 10 a certain distance; the pressing device 2 is provided with a pressing structure to make the conveyed sheet material 10 flatter; the vision device 4 is provided with a camera capable of identifying the image or contour of the sheet material 10 in a certain area or position on the feeding device 1; the printing device 3 is provided with an inkjet structure 6 and a track structure 8 capable of moving the inkjet structure 6 to a specified position according to the image or contour identified by the vision device 4 for printing various patterns or marking process position lines.

[0031] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the pressing device 2 at least includes a heating device 5 and a pressing device. The pressing device is a pressing roller 20 capable of rolling the sheet material 10.

[0032] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, in the vacuum adsorption device, a printing platform 11 is provided in the feeding device 1. A negative pressure box body 12 is provided on the printing platform 11. An adsorption plate 13 is provided on the negative pressure box body 12. A plurality of adsorption holes 14 are provided on the adsorption plate 13. The negative pressure box body 12 is connected to a negative pressure fan 15 through a pipeline, so that the air pressure in the negative pressure box body 12 is lower than the atmospheric pressure.

[0033] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the inkjet structure 6 is provided with a red ink cartridge, a blue ink cartridge, a yellow ink cartridge and a black ink cartridge. The red ink cartridge, the blue ink cartridge, the yellow ink cartridge and the black ink cartridge are arranged in two rows and two columns.

[0034] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a rubber pad 95 is provided above the printing platform 11. The rubber pad 95 is provided with a rectangular groove that matches the inkjet structure 6, so that a closed state can be formed after the inkjet structure 6 is inserted into the rubber groove. The printing device 3 is provided with a circuit board for controlling printing, that is, a control circuit, which can be connected to a computer network to realize data transmission. The inkjet structure 6 can be reset to the position of the rubber pad 95 when in the shutdown state, which can also prevent dust from adhering to the nozzle.

[0035] The blank holding device 2 at least includes a heating device 5 and an extrusion device. The heating device 5 is provided with a heat source, and the heat source heats the sheet material 10 by one or more of the ways of direct contact, indirect contact, thermal radiation, and thermal convection. The heat of the heat source is obtained by one or more of resistance heating, electromagnetic heating, fuel heating, heat pump heating, high-temperature gas or liquid heating. For example, if the heat source is a heating rod and the temperature is appropriate, below a certain degree, it can directly contact the sheet material 10 to heat the sheet material 10. If the temperature of the heating rod is very high, then it cannot directly contact the sheet material 10 and needs to indirectly contact the sheet material 10 through other structures to achieve heating. For example, the heating device 5 is arranged on the extrusion device to directly achieve heating through the extrusion device, or the heating rod is arranged close to the sheet material 10 to utilize thermal radiation and thermal convection to achieve heating of the sheet material 10 without contacting the sheet material 10. There are many sources of heat. For resistance heating, only a resistance wire needs to be set. For electromagnetic heating, a corresponding coil needs to be set. It can heat the mandrel, and then transfer the heat to the extrusion device or in other ways to increase the heat transferred to the sheet material 10. Fuel heating requires setting a certain chamber to introduce air or oxygen and adding fuel to generate heat using chemical energy, and the heat can be transferred to the extrusion device or in other ways to the sheet material 10. Heat pump heating requires compressing air to increase the temperature. Of course, it can also directly utilize the liquid or gas heated by other structures to achieve heating of the sheet material 10.

[0036] The extrusion device is a pressure roller 20 that can roll the sheet material 10. A support roller is provided below the pressure roller 20 to realize the rolling of the sheet material 10 on the conveyor belt. If a flat structure is set below the conveyor belt to realize support, the rolling can also be completed, but the resistance of the conveyor belt conveying is relatively large. Or the extrusion device is two flat structures that directly or indirectly extrude the sheet material 10 through relative movement, so that the sheet material 10 becomes flatter under the action of pressure. The flat structure can move up and down through a hydraulic structure to extrude the sheet material 10.

[0037] The inkjet printer with an ink scraping structure 9 further includes a feeding device 1, a vision device 4, and a printing device 3; the feeding device 1 is provided with a conveying structure that can move the sheet material 10 a certain distance; the vision device 4 is provided with a camera that can identify the image or contour of a moving or stationary object; the printing device 3 is provided with an inkjet structure 6 that can print various patterns or mark the process position lines according to the image or contour identified by the vision device 4; under the conveying of the feeding device 1, the sheet material 10 reaches the position of the vision device 4 for image recognition, and finally reaches the position of the printing device 3 to complete the printing of the specified lines or patterns.

[0038] Such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 And Figure 6As shown in the figure, an inkjet printer with an ink scraping structure 9 includes a heating device 5, a squeezing device, a feeding device 1, a vision device 4, and a printing device 3; the feeding device 1 is provided with a conveying structure capable of moving the sheet material 10 a certain distance, which can be a conveyor belt structure, a rotating conveying disc structure, or the movement of the sheet material 10 can also be achieved by using a robotic arm or a sliding track. However, the speed of the robotic arm and the sliding track is relatively difficult to increase compared to other structures, and they are generally not used for high-speed printers. However, if the speed of the linear movement structure is increased in the future, a robotic arm or a sliding track can also be used to move the sheet material 10. The vision device 4 is provided with a camera capable of identifying the image or contour of a stationary object; the position of the sheet material 10 can be identified after it reaches the designated printing and photographing position. In this way, the efficiency is higher when manually placing the sheet material 10, and there is no need to consider the placement angle of the sheet material 10. Of course, the sheet material 10 needs to have a certain flatness, and if it is bent or deformed, it cannot be identified by the two-dimensional camera. Therefore, a flatness structure for the sheet material 10 needs to be set. The printing device 3 is provided with an inkjet structure 6 capable of printing various patterns or marking the process position lines according to the image or contour identified by the vision device 4.

[0039] The heating device 5 is provided with a heating rod integrated with the squeezing device to heat the sheet material 10 when the squeezing device squeezes the sheet material 10, or is provided with a heating lamp or a heating rod to perform non-direct contact heating on the sheet material 10 at a certain position; the squeezing device is a pressure roller 20 capable of rolling the sheet material 10, or the squeezing device is a planar structure to squeeze the sheet material 10 by moving relatively up and down, so that the sheet material 10 becomes flatter under the action of pressure; after the sheet material 10 is squeezed by the squeezing device, it moves away from the heating device 5, the temperature decreases, and it remains in a flat state. Then, it is conveyed by the feeding device 1 to the position of the vision device 4 for image recognition, and finally reaches the position of the printing device 3 to complete the printing of the specified lines or patterns. The heating device 5 can also be heated by electromagnetic induction, by a heat pump, by fuel, or by other methods such as oil, water, or steam. Only the corresponding pipelines need to be set. Of course, the easiest way to control and the simplest structure is the electric heating method.

[0040] When the inkjet structure 6 needs to work, it first rises a certain height under the drive of the first reduction motor 84 on the first track 81, moves to the area where printing is required, and descends to a position 5-8 mm away from the workbench surface. Generally, the distance from the sheet material 10 is 3-5 mm. Before printing, the vision device 4 needs to take a photo to identify the placement position and shape of the sheet material 10 on the printing platform 11. After the identification is confirmed, the control circuit can start inkjet printing according to the set program. After printing for a certain time, it can move to the position of the ink scraping structure 9, descend to the position in contact with the soft scraping blade 91, and start the cylinder 94 to move forward or backward to complete ink scraping. The soft scraping blade 91 can be made of rubber material or polyurethane material.

Claims

1. An inkjet printer with an ink scraping structure, characterized in that: The invention comprises a feeding device (1), a pressing device (2), a visual device (4) and a printing device (3), wherein the printing device (3) comprises an inkjet structure (6), a driving structure (7), a track structure (8) and an ink scraping structure (9), wherein the inkjet structure (6) is mounted on the track structure (8), the driving structure (7) drives the inkjet structure (6) to move on the track structure (8), and the ink scraping structure (9) is provided with a soft scraper (91) and a base (92), wherein the soft scraper (91) is vertically mounted on the base (92).

2. The inkjet printer with an ink scraping structure according to claim 1, characterized in that: One side of the base (92) is mounted on a horizontal positioning slide rail (93) so that the base (92) is suspended above the edge of the feeding device (1), and one end of the base (92) is fixed on a cylinder (94) so ​​that the cylinder (94) can drive the base (92) to move rapidly in a straight line.

3. The inkjet printer with an ink scraping structure according to claim 2, characterized in that: The track structure (8) comprises a third track (83) and a second track (82) which are perpendicular to each other in the horizontal direction, and a first track (81) in the vertical direction, wherein the first track (81) is driven by a first reduction motor (84), the second track (82) is driven by a second reduction motor (85), and the third track (83) is driven by a third reduction motor (86).

4. The inkjet printer with an ink scraping structure according to claim 3, characterized in that: The first track (81) comprises a first slide rail (19), a second slide rail (18), a slide seat (17) and a screw rod (16); the screw rod (16) is arranged in a vertical direction; the inkjet structure (6) is fixed on the slide seat (17); the slide seat (17) matches the first slide rail (19) and the second slide rail (18); the slide seat (17) is installed together in a manner that it can slide relative to the first slide rail (19) and the second slide rail (18); the slide seat (17) is provided with a screw hole matching the screw rod (16); and the first reduction motor (84) drives the screw rod (16) to rotate through a reduction transmission structure.

5. The inkjet printer with an ink scraping structure according to claim 4, characterized in that: The second track (82) comprises an upper slide rail (29), a lower slide rail (28), a mounting seat plate (27), a driving wheel (26), a driving belt (25) and a transmission wheel (24); the second reduction motor (85) drives the transmission wheel (24) to rotate by means of a belt drive or a chain drive; the transmission wheel (24) and the driving wheel (26) are coaxially arranged to achieve transmission; the mounting seat plate (27) is mounted on the upper slide rail (29) and the lower slide rail (28) in a manner of sliding relative to the upper slide rail (29) and the lower slide rail (28); the first track (81) is fixed as a whole on the mounting seat plate (27); the driving wheel (26) rotates relative to the driving belt (25) to drive the mounting seat plate (27) to move along the upper slide rail (29) and the lower slide rail (28).

6. The inkjet printer with an ink scraping structure according to claim 5, characterized in that: The third track (83) comprises a left slide rail (31), a right slide rail (32), a left bracket (33) and a right bracket (34); the second track (82) is mounted on a crossbeam (35); two ends of the crossbeam (35) are respectively fixed to the left bracket (33) and the right bracket (34); the left bracket (33) can move linearly along the left slide rail (31); the right bracket (34) can move linearly along the right slide rail (32); the left bracket (33) or the right bracket (34) is provided with the third reduction motor (86); the third reduction motor (86) drives the left bracket (33) and the right bracket (34) through a belt drive or a chain drive.

7. The inkjet printer with an ink scraping structure according to any one of claims 1 to 6, characterized in that: The feeding device (1) is provided with a conveying structure capable of intermittently moving the sheet material (10) a certain distance; the pressing device (2) is provided with a squeezing structure to make the conveyed sheet material (10) more flat; the visual device (4) is provided with a camera capable of identifying an image or contour of the sheet material (10) in a certain interval or position on the feeding device (1); the printing device (3) is provided with an inkjet structure (6) and a track structure (8) capable of moving the inkjet structure (6) to a designated position according to the image or contour identified by the visual device (4) to print various patterns or mark process position lines.

8. The inkjet printer with an ink scraping structure according to claim 7, characterized in that: The pressing device (2) comprises at least a heating device (5) and an extrusion device, wherein the extrusion device is a pressing roller (20) capable of rolling the sheet material (10).

9. The inkjet printer with an ink scraping structure according to claim 8, characterized in that: The feeding device (1) is provided with a printing platform (11), the printing platform (11) is provided with a negative pressure box (12), the negative pressure box (12) is provided with an adsorption plate (13), the adsorption plate (13) is provided with a plurality of adsorption holes (14), and the negative pressure box (12) is connected to a negative pressure fan (15) via a pipeline so that the air pressure in the negative pressure box (12) is lower than the atmospheric pressure.

10. The inkjet printer with an ink scraping structure according to claim 9, characterized in that: A rubber pad (95) is provided above the printing platform (11), and the rubber pad (95) is provided with a rectangular groove that matches the inkjet structure (6) so that the inkjet structure (6) can form a closed state after being inserted into the rubber groove.

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