Digital printing equipment

Abstract

The utility model discloses digital printing equipment which comprises a machine frame, a supporting table is fixedly connected to the inner wall of the bottom of the machine frame, a printing platform is installed on the top of the supporting table, and two feeding Y shafts are installed between the inner wall of the front side and the inner wall of the rear side of the machine frame. By arranging a series of structures, left-right and front-back bidirectional stable driving of the portal frame can be formed for the printing trolley, compared with single-side driving, the requirement for the rigidity of a frame is low, the consistency and stability of movement of the power end and the follow-up end are guaranteed, the printing trolley does not need to independently add Y-axis movement, the structure is relatively simple, and the cost is low. The printing trolley is small in size, nozzles in the printing trolley do not need to be arranged in a full-width mode, the nozzles can be arranged in a single row or multiple rows according to the printing width requirement, the printing nozzles are arranged flexibly, Y-axis stepping scanning printing can be achieved, the printing effect on heavy ink amount graphs is good, and deviation correction, positioning and swing angle compensation can be conducted on a roll material base material. And the consistency of patterns printed every time is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of UV printing, in particular to a digital printing device. Background Art

[0002] In the current digital UV printing industry, flatbed scanners, UV printers and onepass digital label machines are commonly used in the production of advertising, packaging, labeling and other industries; the flatbed scanner is a single substrate laid flat on the suction platform, and the printing carriage scans and prints back and forth on the beam and steps and feeds the entire beam gap. It is suitable for single sheet material and can achieve high-precision and heavy ink graphic printing. Please refer to CN211730683U, a flatbed printer; the UV printer can use a single sheet or roll material as the substrate, and the printing carriage scans and prints back and forth on the beam, and steps and feeds the printing substrate gap. Please refer to CN206154904U, a spray printer; the onepass digital label machine uses roll material as the printing substrate, and the substrate is continuously fed on the printing base. The printing unit does not move and prints directly onto the substrate. Please refer to CN117754974A, a digital printing device.

[0003] Prior art CN214137909U proposes a piezoelectric inkjet digital printer, which is applied to UV printing of roll-to-roll substrates. The printing mechanism spans the printing platform and connects the driving X-axis and the auxiliary guide rail end to form a gantry frame structure. The unilateral power drive of the X-axis causes the X-axis of the printing mechanism to reciprocate. The following disadvantages exist during use: 1. The unilateral drive requires relatively high rigidity of the printing mechanism frame, and the movement consistency of the power end and the follower end is difficult to ensure; 2. The printing mechanism is arranged with two movable Y-axes, which only move within a small range to meet the printing point insertion requirements. The nozzles inside the printing structure are arranged full-width. The large number of nozzles increases the requirements for nozzle splicing and significantly increases the cost; the current structural layout of the printing mechanism cannot realize the Y-axis step-scan printing method, and the printing effect of UV heavy ink graphics is not very good. The current printing technology requires Y-axis step-scan printing to achieve good results for UV heavy ink graphics; in view of this, the present application proposes a digital printing device. Utility Model Content

[0004] The purpose of the present invention is to provide a digital printing device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a digital printing device, comprising a frame, a support platform fixedly connected to the bottom inner wall of the frame, a printing platform installed on the top of the support platform, two feed Y axes installed between the front and rear inner walls of the frame, the tops of the movable ends of the two feed Y axes fixedly connected to the same horizontal X axis, a printing carriage installed on the front side of the movable end of the horizontal X axis, a control platform assembly installed on the rear right side of the top of the frame, the control platform assembly including a PLC controller, the printing platform, the printing carriage, the horizontal X axis and the feed Y axis are all electrically connected to and controlled by the PLC controller;

[0006] A reel-off device is installed between the front and rear inner walls of the frame and is located on the left side of the support platform. A reel-up device is installed between the front and rear inner walls of the frame and is located on the right side of the support platform. A deviation corrector, a double-sided dust collector and a traction mechanism are installed between the front and rear inner walls of the frame. The double-sided dust collector and the traction mechanism are respectively located on the left and right sides of the support platform. The deviation corrector is located above the reel-off device. A roll substrate with one end fixed thereto is wound around the outside of the reel-off device, and the other end of the roll substrate passes through the deviation corrector, the double-sided dust collector and the traction mechanism in sequence and is wound and fixed around the outside of the reel-off device. A detection platform is installed above the reel-off device between the front and rear inner walls of the frame, and the roll substrate is movably in contact with the top of the printing platform and the top of the detection platform. The reel-off device, the reel-off device, the deviation corrector, the double-sided dust collector and the traction mechanism are all electrically connected to and controlled by the PLC controller.

[0007] A positioning camera assembly 1 and a positioning camera assembly 2 electrically connected to the PLC controller are installed between the front and rear inner walls of the frame, and the printing platform is located between the positioning camera assembly 1 and the positioning camera assembly 2. A moisturizing tray is fixedly installed between the front and rear inner walls of the frame, and the moisturizing tray is located on the right side of the corrector and cooperates with the bottom of the printing carriage.

[0008] Preferably, a storage shaft located on the left side of the winder is installed between the front and rear inner walls of the frame. The storage shaft is composed of multiple rotating shafts installed between the front and rear inner walls of the frame in an upper and lower staggered manner. The rolled substrate passes around the outside of the rotating shaft and is in active contact with the outside of the rotating shaft.

[0009] Preferably, the transverse X-axis and the two feed Y-axes form a gantry structure.

[0010] Preferably, the printing platform includes a platform surface, a platform suction chamber arranged on the platform surface, an arc guide roller installed on the right side of the bottom of the platform surface, and a swing angle drive motor assembly installed between the top of the support and the left side of the bottom of the platform surface. Transition rollers that are rotatably installed on both sides of the platform surface are in active contact with the bottom of the roll substrate. The arc guide roller includes an arc guide roller fixedly connected to the right side of the top of the support, and two sliders are slidably installed on the arc guide roller. The top of the slider is fixedly connected to the right side of the bottom of the platform surface. A support block is fixedly connected to the left side of the top of the support, and the top of the support block is in sliding contact with the left side of the bottom of the platform surface.

[0011] Preferably, the swing angle drive motor assembly includes a fixed seat fixedly connected to the top of the support platform, a servo motor 1 fixedly installed on one side of the fixed seat, a screw rod fixedly connected to the end of the output shaft of the servo motor 1 and rotatably connected to the fixed seat through a bearing, a connecting seat threadedly sleeved on the outside of the screw rod, and a connecting pin rotatably installed on the connecting seat, the connecting pin is rotatably installed with the bottom of the platform surface, a T-shaped guide rail is installed on the fixed seat, the connecting seat is slidably installed on the T-shaped guide rail, and the servo motor 1 is electrically connected to the PLC controller.

[0012] Preferably, the positioning camera assembly 1 and the positioning camera assembly 2 both include a fixed plate fixedly connected between the front and rear inner walls of the frame, a motion module is fixedly installed on the top of the two fixed plates, a servo motor 2 is installed on the top of the fixed plate, and the output shaft is fixedly connected to the corresponding motion module driving end, and a camera and a light source are fixedly installed on the top of the moving end of the two motion modules, and the light source is mounted on the outside of the corresponding camera. The camera, light source and servo motor 2 are all electrically connected to the PLC controller and controlled by the PLC controller.

[0013] Preferably, two first guide wheels rotatably mounted between the front and rear inner walls of the frame are provided below the deviation corrector, and the coiled substrate moves around the outside of the two first guide wheels. Second guide wheels rotatably mounted between the front and rear inner walls of the frame are provided on both sides of the double-sided dust collector. There are two second guide wheels on the left side, and the coiled substrate moves around the outside of the three second guide wheels.

[0014] Preferably, the transverse X-axis and the two feed Y-axes are driven by branch motors, and the printing action is achieved by positioning with a metal grating ruler.

[0015] Preferably, a plurality of suction holes are provided on the top of the platform surface, each of which is connected to the interior of the platform suction cavity.

[0016] Preferably, the two transition rollers are located between two cameras, and the lenses of the cameras are arranged toward the corresponding transition rollers.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The lateral X-axis and two feed Y-axes work together to create a bidirectional drive mode for the gantry, both left and right, and front and back. The two feed Y-axes on either side drive the gantry. This reduces frame rigidity requirements compared to single-sided drive, ensures consistency and stability in the motion of the power and follower ends, and enables roll-to-roll digital printing for step-by-step scanning printing applications. The print carriage does not require a separate Y-axis for movement, resulting in a relatively simple structure and compact size.

[0019] 2. The gantry is driven left and right and front and back in two directions by the horizontal X-axis and two feed Y-axes. This also means that the print heads inside the print carriage do not need to be arranged full width. They can be arranged in single or multiple rows according to the printing width requirements. The print head arrangement is relatively flexible and can achieve Y-axis step-by-step scanning printing, which has a good printing effect on heavy ink graphics.

[0020] 3. Through the set deviation corrector, camera and printing platform, the initial deviation correction, detection positioning and swing angle compensation correction of the roll material base material can be realized in turn, and the effects of positioning and pulling material to prevent deviation and swing angle compensation can be achieved. The swing angle compensation of the printing platform and the printing position compensation of the printing carriage can ensure the consistency of the pattern printed each time.

[0021] The utility model is provided with a series of structures, which can form a two-way stable drive for the gantry left and right and front and back of the printing carriage. Compared with the unilateral drive, the rigidity requirement of the frame is lower, and the consistency and stability of the movement of the power end and the follower end are guaranteed. The printing carriage does not need to add a separate Y-axis movement. The structure is relatively simple and the size is relatively small. Moreover, the nozzles inside the printing carriage do not need to be arranged full-width. They can be arranged in a single row or multiple rows according to the printing width requirements. The arrangement of the printing nozzles is relatively flexible, and can realize Y-axis step scanning printing. It has a good printing effect on heavy ink graphics, and can correct the deviation, position and swing angle of the roll substrate to improve the consistency of each printed pattern. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of a digital printing device proposed in the present invention;

[0023] Figure 2 This is a schematic diagram of the main cross-sectional structure of a digital printing device proposed in the present invention;

[0024] Figure 3 This is a schematic diagram of the bottom-up structure of a printing platform of a digital printing device proposed in the present invention;

[0025] Figure 4 This is a schematic diagram of the main cross-sectional structure of a printing platform of a digital printing device proposed in the present invention;

[0026] Figure 5This is a schematic diagram of the three-dimensional structure of a positioning camera component 1 or a positioning camera component 2 of a digital printing device proposed in the present invention;

[0027] Figure 6 This is a three-dimensional structural diagram of a swing angle drive motor assembly of a digital printing device proposed by the present invention.

[0028] In the figure: 1. Frame; 101. Support platform; 2. Printing platform; 201. Platform surface; 202. Platform suction chamber; 203. Arc guide roller; 205. Transition roller; 206. Swing angle drive motor assembly; 2061. Fixed seat; 2062. T-shaped guide rail; 2063. Connecting seat; 2064. Connecting pin; 2065. Servo motor 1; 2066. Screw; 3. Horizontal X-axis; 4. Print carriage; 5. Unwinder; 6. Rewinder; 7. Deviation corrector; 8. Double-sided dust collector; 9. Storage shaft; 10. Traction mechanism; 11. Feed Y-axis; 12. Moisturizing tray; 13. Positioning camera assembly 1; 1301. Fixed plate; 1302. Motion module; 1303. Servo motor 2; 1304. Light source; 1305. Camera; 14. Positioning camera assembly 2; 15. Detection platform. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] Example 1

[0031] like Figures 1 to 6 As shown, a digital printing device proposed in this embodiment includes a frame 1, a support 101 is fixedly connected to the bottom inner wall of the frame 1, a printing platform 2 is installed on the top of the support 101, two feed Y axes 11 are installed between the front and rear inner walls of the frame 1, the top of the movable end of the two feed Y axes 11 is fixedly connected to the same horizontal X axis 3, a printing carriage 4 is installed on the front side of the movable end of the horizontal X axis 3, a control platform assembly is installed on the right rear side of the top of the frame 1, the control platform assembly includes a PLC controller, the printing platform 2, the printing carriage 4, the horizontal X axis 3 and the feed Y axis 11 are all electrically connected to the PLC controller and controlled by the PLC controller; the set horizontal X axis 3 and the two feed Y axes 11 are used to be respectively controlled by the PLC controller to control the left and right and front and back movement of the printing carriage to perform step-by-step printing, the horizontal X axis 3 and the two feed Y axes 11 form a gantry structure, the horizontal X axis 3 and the two feed Y axes 11 are all driven by branch motors, and the printing action is realized by positioning with a metal grating ruler;

[0032] A reel 5 is installed between the front and rear inner walls of the frame 1 and is located on the left side of the support 101. A reel 6 is installed between the front and rear inner walls of the frame 1 and is located on the right side of the support 101. A deviation corrector 7, a double-sided dust collector 8 and a traction mechanism 10 are installed between the front and rear inner walls of the frame 1. The double-sided dust collector 8 and the traction mechanism 10 are respectively located on the left and right sides of the support 101. The deviation corrector 7 is located above the reel 5. A coil substrate with one end fixed to it is wound around the outside of the reel 5. The other end of the coil substrate passes through the deviation corrector 7, the double-sided dust collector 8 and the traction mechanism 10 in sequence and is wound and fixed around the outside of the reel 6. A detection platform 15 is installed above the reel 6 between the front and rear inner walls of the frame 1. The coil substrate and the printing platform 2 are connected. The top of the machine frame 1 is in active contact with the top of the detection platform 15. The winder 6, unwinder 5, deviation corrector 7, double-sided dust collector 8 and traction mechanism 10 are all electrically connected to the PLC controller and controlled by the PLC controller. Two first guide wheels rotatably mounted between the front and rear inner walls of the frame 1 are provided below the deviation corrector 7. The coiled material substrate moves around the outside of the two first guide wheels. Second guide wheels rotatably mounted between the front and rear inner walls of the frame 1 are provided on both sides of the double-sided dust collector 8. There are two second guide wheels on the left side, and the coiled material substrate moves around the outside of the three second guide wheels. The winder 6 and unwinder 5 are used to be controlled by the PLC controller to reel in and release the coiled material, so as to realize automatic transportation of the coiled material substrate.

[0033] A positioning camera assembly 13 and a positioning camera assembly 2 14 electrically connected to the PLC controller are installed between the front and rear inner walls of the frame 1, and the printing platform 2 is located between the positioning camera assembly 13 and the positioning camera assembly 2 14. A moisturizing tray 12 is fixedly installed between the front and rear inner walls of the frame 1. The moisturizing tray 12 is located on the right side of the corrector 7 and cooperates with the bottom of the printing carriage 4; the positioning camera assembly 13 and the positioning camera assembly 2 14 are respectively arranged to take pictures and position the edges of the roll substrate from both sides, and the moisturizing tray 12 is used to moisturize the print nozzle at the bottom of the printing carriage 4 when the printing carriage 4 moves to its top position.

[0034] Specifically, a storage shaft 9 is installed between the front and rear inner walls of the frame 1 and is located on the left side of the winder 6. The storage shaft 9 is composed of multiple rotating shafts that are staggered up and down between the front and rear inner walls of the frame 1. The coil substrate passes around the outside of the rotating shaft and is in active contact with the outside of the rotating shaft. The rotating shaft located at the lower part is a rotating shaft that can move up and down, and can move upward when pulled by the coil substrate.

[0035] Furthermore, the printing platform 2 includes a platform surface 201, a platform suction chamber 202 arranged on the platform surface 201, an arc guide roller 203 installed on the right side of the bottom of the platform surface 201, and a swing angle drive motor assembly 206 installed between the top of the support 101 and the left side of the bottom of the platform surface 201. The top of the platform surface 201 is provided with a plurality of suction holes that are connected to the inside of the platform suction chamber 202. Transition rollers 205 that are in active contact with the bottom of the coiled substrate are rotatably installed on both sides of the platform surface 201. The arc guide roller 203 includes a fixed connection to the support 101. The arc-shaped guide roller is on the right side of the top, and two sliders are slidably installed on the arc-shaped guide roller. The top of the slider is fixedly connected to the right side of the bottom of the platform surface 201. The top left side of the support platform 101 is fixedly connected to a support block, and the top of the support block is in sliding contact with the left side of the bottom of the platform surface 201. The two transition rollers 205 are both located between the two cameras 1305, and the lenses of the cameras 1305 are set facing the corresponding transition rollers 205; the set platform suction chamber 202 cooperates with the suction hole to firmly adsorb the roll substrate on the printing platform 2 when connecting to an external suction device to provide suction force.

[0036] Furthermore, the swing angle drive motor assembly 206 includes a fixed base 2061 fixedly connected to the top of the support 101, a servo motor 2065 fixedly installed on one side of the fixed base 2061, a screw 2066 fixedly connected to the end of the output shaft of the servo motor 2065 and rotatably connected to the fixed base 2061 through a bearing, a connecting base 2063 threadedly sleeved on the outside of the screw 2066, and a connecting pin 2064 rotatably installed on the connecting base 2063, wherein a threaded hole threadedly connected to the screw 2066 is opened on the right side of the connecting base 2063, and the screw 2066 is connected to the threaded hole by the screw hole. The threaded connection relationship facilitates the displacement of the connecting seat 2063 when the screw rod 2066 rotates. The connecting pin 2064 is rotatably installed with the bottom of the platform surface 201. A T-shaped guide rail 2062 is installed on the fixed seat 2061. The connecting seat 2063 is slidably installed on the T-shaped guide rail 2062. The servo motor 1 2065 is electrically connected to the PLC controller; the fixed seat 2061, the servo motor 1 2065, the screw rod 2066, the connecting seat 2063, the connecting pin 2064 and the T-shaped guide rail 2062 are matched to position the camera assembly 13 and the positioning camera assembly 2 14. After taking photos of the edges of the coiled material from both sides to locate them, the positioning camera assembly 13 and the positioning camera assembly 2 14 calculate the deviation data from the initial calibration position by locating the edge and the mark point. The CCD background calculates the angle of the material and gives it to the PLC controller of the control platform assembly mechanism and the position deviation data of the mark point to the board that controls the printing carriage 4. By receiving the deviation data from the CCD, the PLC controller controls the servo motor 1 2065 to start accordingly, and uses the servo motor 1 2065 to drive the screw rod 2066 to rotate, thereby driving the connecting seat 2063 Moving back and forth, the connecting seat 2063 drives the platform surface 201 to move back and forth through the connecting pin 2064, and the platform surface 201 performs rotational swing angle compensation on the top of the support 101 through the arc guide roller 203, and the printing carriage 4 performs printing starting position compensation; the role of the printing platform swing angle function is to eliminate the angle deviation generated after each step pulling; at the same time, the positioning of the positioning camera component 1 13 and the positioning camera component 2 14 are combined in the direction of pulling and feeding the material, and the initial printing position deviation compensation and the deviation compensation of the pulling control are developed in the printing control of the printing carriage 4 to ensure that the spacing of the printed graphics is consistent each time.

[0037] Furthermore, the positioning camera assembly 1 13 and the positioning camera assembly 2 14 each include a fixed plate 1301 fixedly connected between the front and rear inner walls of the frame 1, a motion module 1302 is fixedly installed on the top of the two fixed plates 1301, a servo motor 2 1303 whose output shaft is fixedly connected to the driving end of the corresponding motion module 1302 is installed on the top of the fixed plate 1301, and a camera 1305 and a light source 1304 are fixedly installed on the top of the moving end of the two motion modules 1302. The light source 1304 is sleeved on the outside of the corresponding camera 1305. The camera 1305, The light source 1304 and the second servo motor 1303 are both electrically connected to the PLC controller and controlled by the PLC controller; the set motion module 1302 and the second servo motor 1303 cooperate to drive and adjust the front and rear positions of the corresponding camera 1305, and use the two sets of cameras 1305 to calculate the deviation data from the initial calibration position by positioning the edge and mark points, and use its CCD background to calculate the angle deviation angle data of the material and give it to the PLC controller of the control platform component mechanism and the position deviation data of the mark point to the board that controls the printing carriage 4.

[0038] In this embodiment, when in use, the reel 6 and the unreel 5 are used to synchronously reel and release the coil substrate respectively, so as to realize the automatic transportation of the coil substrate on the top of the printing platform 2, wherein the coil substrate passes through the deflection corrector 7, which corrects the deflection and guides the material by sensing the edge of the coil substrate, and the coil substrate passes through the first guide wheel and the second guide wheel in turn and flows through the double-sided dust collector 8 to remove dust and dirt on the front and back of the coil substrate, and flows through the printing platform 2 through the transition roller 205. Since the positioning camera component 1 13 and the positioning camera component 2 14 are respectively provided on both sides of the printing platform 2, the cameras 1305 of the two are used to calculate the deviation data from the initial calibration position by positioning the edge of the coil substrate and the mark point, and the CCD background is used to calculate the angle of the material and give it to the PLC controller of the control platform component mechanism and the position deviation data of the mark point to the board card controlling the printing carriage 4, and the CCD is received by the CCD The deviation data PLC controller controls the servo motor 2065 to start accordingly, and uses the servo motor 2065 to drive the screw rod 2066 to rotate, so as to drive the connecting seat 2063 to move forward and backward. The connecting seat 2063 drives the platform surface 201 to move forward and backward through the connecting pin 2064. Since the arc guide roller 203 is installed on the right side of the bottom of the printing platform 2, the other end is only used as a plane support. The end of the plane support can rotate along the center of the arc guide roller. Therefore, at this time, the platform surface 201 is rotated and swung at the top of the support 101 through the arc guide roller 203 to compensate for the angle, and the printing carriage 4 compensates for the starting position of printing. The function of the printing platform swing angle is to eliminate the angle deviation generated after each step of pulling the material. At the same time, the positioning of the two cameras 1305 is combined in the direction of pulling and feeding the material, and the initial printing position deviation compensation and the deviation compensation of the pulling control are developed in the printing control of the printing carriage 4 to ensure that the spacing of the printed graphics is consistent each time.

[0039] The platform suction chamber 202 of the printing platform 2 cooperates with the suction hole to provide suction force when connected to an external suction device, so that the coil substrate is firmly adsorbed on the printing platform 2 during printing. After printing is completed, the printing carriage 4 is controlled to move to the top of the moisturizing tray 12, and the moisturizing tray 12 is used to moisturize the print nozzle at the bottom of the printing carriage 4 to maintain the state of the print nozzle; the storage shaft 9 provided on one side of the inspection platform 15 is used. When the reel 6 is controlled to rotate forward when the product needs to be inspected, the lower part of the storage shaft 9 is pulled upward, and the coil substrate on the storage shaft 9 enters the reel 6 for rewinding, which will not affect the material on the printing platform 2;

[0040] The gantry structure is formed by the transverse X-axis 3 and the two feed Y-axes 11, which can form a left-right and front-back bidirectional driving mode of the gantry, and the front and back are driven by the two feed Y-axes 11 on both sides. Compared with the unilateral drive, the rigidity requirement of the frame is lower, and the consistency and stability of the movement of the power end and the follower end can be ensured. The printing carriage 4 is fixed in front of the moving end of the transverse X-axis 3 to make a reciprocating motion, and the material feeding direction is consistent with the X-axis direction of the printing carriage 4, which can realize roll-to-roll digital printing for step-by-step scanning printing applications, and the printing carriage 4 does not need to add a separate Y-axis movement. The structure is relatively simple and the size is relatively small. The printing nozzles inside the printing carriage 4 do not need to be arranged full-width, and can be arranged in a single row or multiple rows according to the printing width requirements. The printing nozzle arrangement is relatively flexible, and Y-axis step-by-step scanning printing can be realized, and the printing effect of heavy ink graphics is good; in addition, the use of the corrector 7 and the camera 1305 to drive the swing angle movement of the printing platform can achieve the effects of positioning and pulling to prevent deviation and using the printing platform 2 to perform swing angle compensation.

[0041] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A digital printing device, comprising a frame (1), characterized in that: A support platform (101) is fixedly connected to the inner wall at the bottom of the frame (1), a printing platform (2) is installed on the top of the support platform (101), two feed Y axes (11) are installed between the front and rear inner walls of the frame (1), the tops of the movable ends of the two feed Y axes (11) are fixedly connected to the same transverse X axis (3), a printing carriage (4) is installed on the front side of the movable end of the transverse X axis (3), a control platform assembly is installed on the right rear side of the top of the frame (1), the control platform assembly includes a PLC controller, and the printing platform (2), the printing carriage (4), the transverse X axis (3) and the feed Y axis (11) are all electrically connected to the PLC controller; A reel (5) located on the left side of the support (101) is installed between the front and rear inner walls of the frame (1), a reel (6) located on the right side of the support (101) is installed between the front and rear inner walls of the frame (1), a deviation corrector (7), a double-sided dust collector (8) and a traction mechanism (10) are installed between the front and rear inner walls of the frame (1), the double-sided dust collector (8) and the traction mechanism (10) are respectively located on the left and right sides of the support (101), the deviation corrector (7) is located above the reel (5), and a reel (6) is wound around the outside of the reel (5) at one end thereof. A fixed coil substrate, the other end of which passes through a deflection corrector (7), a double-sided dust collector (8) and a traction mechanism (10) in sequence and is wound and fixed on the outside of a reel (6); a detection platform (15) located above the reel (6) is installed between the front and rear inner walls of the frame (1); the coil substrate is in active contact with the top of the printing platform (2) and the top of the detection platform (15); the reel (6), the unwinder (5), the deflection corrector (7), the double-sided dust collector (8) and the traction mechanism (10) are all electrically connected to a PLC controller; A positioning camera assembly 1 (13) and a positioning camera assembly 2 (14) electrically connected to a PLC controller are installed between the front and rear inner walls of the frame (1); the printing platform (2) is located between the positioning camera assembly 1 (13) and the positioning camera assembly 2 (14); a moisturizing tray (12) is fixedly installed between the front and rear inner walls of the frame (1); the moisturizing tray (12) is located on the right side of the deviation corrector (7) and cooperates with the bottom of the printing carriage (4).

2. The digital printing device according to claim 1, characterized in that: A material storage shaft (9) is installed between the front and rear inner walls of the frame (1) and is located on the left side of the reel (6). The material storage shaft (9) is composed of a plurality of rotating shafts installed between the front and rear inner walls of the frame (1) in an upper and lower staggered manner. The coiled material base material passes around the outer side of the rotating shaft and is in active contact with the outer side of the rotating shaft.

3. The digital printing device according to claim 1, characterized in that: The transverse X-axis (3) and the two feed Y-axes (11) form a gantry structure.

4. The digital printing device according to claim 1, characterized in that: The printing platform (2) comprises a platform surface (201), a platform suction chamber (202) arranged on the platform surface (201), an arc guide roller (203) installed on the right side of the bottom of the platform surface (201), and an angular drive motor assembly (206) installed between the top of the support platform (101) and the left side of the bottom of the platform surface (201), transition rollers (205) that are rotatably installed on both sides of the platform surface (201) and are in active contact with the bottom of the roll substrate, the arc guide roller (203) comprises an arc guide roller fixedly connected to the right side of the top of the support platform (101), two sliders are slidably installed on the arc guide roller, the top of the slider is fixedly connected to the right side of the bottom of the platform surface (201), a support block is fixedly connected to the left side of the top of the support platform (101), and the top of the support block is in sliding contact with the left side of the bottom of the platform surface (201).

5. The digital printing device according to claim 4, characterized in that: The swing angle drive motor assembly (206) comprises a fixed seat (2061) fixedly connected to the top of the support platform (101), a servo motor (2065) fixedly mounted on one side of the fixed seat (2061), a screw (2066) fixedly connected to the end of the output shaft of the servo motor (2065) and rotatably connected to the fixed seat (2061) via a bearing, a connecting seat (2063) threadedly sleeved on the outside of the screw (2066), and a connecting pin (2064) rotatably mounted on the connecting seat (2063), the connecting pin (2064) being rotatably mounted on the bottom of the platform surface (201), a T-shaped guide rail (2062) being mounted on the fixed seat (2061), the connecting seat (2063 being slidably mounted on the T-shaped guide rail (2062), and the servo motor (2065) being electrically connected to the PLC controller.

6. The digital printing device according to claim 1, characterized in that: The positioning camera assembly 1 (13) and the positioning camera assembly 2 (14) both include a fixed plate (1301) fixedly connected between the front and rear inner walls of the frame (1), a motion module (1302) being fixedly mounted on the top of the two fixed plates (1301), a servo motor 2 (1303) having an output shaft fixedly connected to a driving end of the corresponding motion module (1302) being mounted on the top of the fixed plate (1301), a camera (1305) and a light source (1304) being fixedly mounted on the top of the moving end of the two motion modules (1302), the light source (1304) being sleeved on the outside of the corresponding camera (1305), and the camera (1305), the light source (1304) and the servo motor 2 (1303) being electrically connected to a PLC controller.

7. The digital printing device according to claim 1, characterized in that: Two first guide wheels rotatably mounted between the front and rear inner walls of the frame (1) are provided below the deviation corrector (7), and the coiled material substrate moves around the outsides of the two first guide wheels. Second guide wheels rotatably mounted between the front and rear inner walls of the frame (1) are provided on both sides of the double-sided dust collector (8), and there are two second guide wheels on the left side, and the coiled material substrate moves around the outsides of three second guide wheels.

8. The digital printing device according to claim 1, characterized in that: The transverse X-axis (3) and the two feed Y-axes (11) are driven by branch motors, and the printing action is achieved by positioning with a metal grating ruler.

9. The digital printing device according to claim 4, characterized in that: The top of the platform surface (201) is provided with a plurality of suction holes which are all in communication with the interior of the platform suction cavity (202).

10. The digital printing device according to claim 6, characterized in that: The two transition rollers (205) are both located between the two cameras (1305), and the lenses of the cameras (1305) are arranged toward the corresponding transition rollers (205).

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