Digital ink-jet printing device of printing machine

Abstract

The invention discloses a digital ink-jet printing device of a printing machine, which comprises an unwinding frame, an ink-jet printing device and a winding frame, the unwinding frame is arranged on the rear side of the ink-jet printing device, the winding frame is arranged on the front side of the ink-jet printing device, the ink-jet printing device comprises a maintenance mechanism, a clamping mechanism and a connecting piece, connecting pieces are arranged on the outer walls of the front side and the rear side of the overhauling mechanism, the clamping mechanisms are detachably connected to the outer walls of the overhauling mechanism through the connecting pieces, the clamping mechanisms on the front side and the rear side are attached to the outer surfaces of the two sides of the winding frame and the outer surfaces of the two sides of the unwinding frame respectively, two spray heads used for spraying ink are arranged in the overhauling mechanism, and each spray head works independently. The ink-jet printing machine has the advantages that the elastic mechanism of the clamping mechanism provides elastic supporting force when the unwinding frame and the winding frame are positioned and clamped, the stability of transfer printing paper in the winding and unwinding process is improved, the two micro servo motors drive the two spray heads to conduct reverse displacement ink jet, the two spray heads work independently and do not interfere with each other, and the speed and efficiency of ink-jet printing are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of printing machines, and more specifically, to a digital inkjet printing device of a printing machine. Background Art

[0002] Digital printing machines are a type of large-format printer, similar to plotters in the CAD field. They use water-based dispersed inks, which are printed on transfer paper and then transferred to fabric (such as synthetic fibers) at high temperatures. They are primarily used for the printing and dyeing of clothing fabrics. The core structure of the printing machine is a digital inkjet printing device, which sprays ink onto transfer paper to form a pattern. However, existing digital inkjet printing devices in printing machines have the following shortcomings when spraying ink onto transfer paper to form a pattern: 1. The transfer paper is transported to the bottom of the digital inkjet printing device through the unwinding rack. After the inkjet printing is completed, the transfer paper is rewound by the rewinding rack. However, the unwinding rack and rewinding rack are placed directly on the ground on both sides of the digital printing machine. The stability between the unwinding rack, rewinding rack and the digital printing machine is not high, resulting in instability during the unwinding and unwinding process of the transfer paper, thereby reducing the overall flatness of the transfer paper printed by the digital inkjet printing device. 2. The single nozzle or multiple nozzles on the digital inkjet printing device are installed in the same horizontal direction, and the single nozzle or multiple nozzles are driven to move by the same servo motor, so that the single nozzle or multiple nozzles are slower in spraying ink onto the transfer paper for printing, thereby reducing the speed of inkjet printing on the transfer paper. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that the stability between the unwinding rack and the rewinding rack and the digital printing machine is not high, the printing flatness of the transfer paper is not high, and at the same time, the nozzle is controlled by a single servo motor, the speed of inkjet printing is slow, and the efficiency is low; in response to the said problem, a digital inkjet printing device of a printing machine is proposed, including an unwinding rack, an inkjet printing device, and a rewinding rack, the unwinding rack is arranged on the rear side of the inkjet printing device, and the rewinding rack is arranged on the front side of the inkjet printing device, the inkjet printing device includes an inspection mechanism, a clamping mechanism and a connecting part, and connecting parts are provided on the front and rear outer walls of the inspection mechanism, and the clamping mechanism is detachably connected to the outer wall of the inspection mechanism through the connecting parts, and the clamping mechanisms on the front and rear sides are respectively fitted with the outer surfaces of both sides of the rewinding rack and the unwinding rack, and two nozzles for inkjet are arranged in the inspection mechanism, and each nozzle works independently.

[0004] The technical solution of the present invention is to position and clamp the unwinding frame and the rewinding frame through the clamping mechanism, and the elastic mechanism of the clamping mechanism provides elastic supporting force for the clamping plate, thereby improving the stability of the unwinding frame and the rewinding frame in the process of rewinding and unwinding the transfer paper. The structure of fixing the clamping mechanism through the connecting piece is convenient for disassembly and assembly. When not in use, the four clamping mechanisms can be quickly disassembled to avoid the long extension length of the clamping mechanism, which makes it inconvenient to move the maintenance mechanism and easy to be damaged by collision. When the inkjet mechanism is performing inkjet printing, the two micro servo motors are independently operated, and finally The two nozzles are driven to operate independently, and the inkjet of the two nozzles does not affect each other. At the same time, the two nozzles are driven by two micro servo motors to perform reverse displacement inkjet. The speed and distance of the displacement of the two nozzles are not limited by the synchronous displacement, which effectively improves the speed of the nozzles in inkjet printing on the transfer paper and greatly improves the efficiency. During the transmission of the transfer paper in inkjet printing, the lower guide wheel and the upper adjustment wheel installed on the clamping and transmission mechanism on the left and right sides can clamp and transmit the side ends of the transfer paper, so as to avoid curling of the transfer paper during the inkjet printing process and affect the flatness of the inkjet printing.

[0005] Preferably, the connecting part includes a positioning mounting groove and a fixing plate. The positioning mounting groove for plugging in the clamping mechanism is arranged on the front and rear surfaces of the inspection mechanism. The fixing plate is connected to the outer wall of the inspection mechanism and is located above the positioning mounting groove. The elastic clamping rod is passed through the fixing plate with a clearance fit, and the lower end of the elastic clamping rod is clamped into the rear end of the clamping mechanism. The elastic clamping rod is lifted upward to insert the clamping mechanism into the positioning mounting groove. The elastic clamping rod is released so that it is clamped into the inside of the clamping mechanism to fix the clamping mechanism.

[0006] Preferably, the technical solution of the present invention is that the clamping mechanism includes a clamping plate, a plug-in rod, an external plate, a positioning hole and an elastic mechanism. The plug-in rod is plugged into the positioning mounting groove, an external plate is provided at the front end of the plug-in rod, and a positioning hole that cooperates with the elastic clamping rod is provided at the upper end of the rear of the external plate. The inner surface of the front end of the external plate is connected to the elastic mechanism, and the inner end of the elastic mechanism is provided with a clamping plate for fitting and clamping the unwinding rack or the winding rack. The plug-in rod matches the positioning mounting groove, and the elastic clamping rod is clamped in the positioning hole to fix the clamping mechanism.

[0007] Preferably, the technical solution of the present invention is that the maintenance mechanism includes an inspection top plate, a control panel, a top cover box, a support seat, an ink mechanism and a quick-release mechanism. The inspection top plate is arranged on the upper part of the top cover box, the top cover box is installed on the upper end of the support seat, a control panel is provided on the right side of the front surface of the top cover box, the control panel is electrically connected to the ink mechanism and the quick-release mechanism, the lower end of the ink mechanism is arranged inside the support seat, the upper end of the ink mechanism is through-connected with the upper end of the quick-release mechanism, the quick-release mechanism is arranged between the top cover box and the two support seats, the inspection top plate can be opened to inspect the internal structure, the control panel is used to control the operation of the internal structure, the ink mechanism is used to provide ink for inkjet, and the quick-release mechanism is connected to the ink mechanism to spray ink to form a pattern.

[0008] Preferably, the technical solution of the present invention is that the ink mechanism includes an ink guide hose, an ink cartridge, a control circuit board and a support frame. The support frame is arranged inside the support seat, the ink cartridge is inserted into the upper end of the support frame, and a control circuit board is arranged on the front outer wall of the support frame. The control circuit board is electrically connected to the control panel, and the control circuit board is electrically connected to the quick-release mechanism. The ink cartridge is connected to the upper end of the quick-release mechanism through the ink guide hose. Ink is stored in the ink cartridge, and the ink is transported to the quick-release mechanism through the ink guide hose for subsequent inkjet printing.

[0009] Preferably, the quick-release mechanism includes an inkjet mechanism, a positioning splint and a lower support platform. The positioning splint is installed on the inner surface of the support seat, and the positioning splint is in conflict with the corner end of the inkjet mechanism. The lower support platform is located below the inkjet mechanism. The inkjet mechanism and the lower support platform are both located below the top cover box. The lower support platform is fixedly installed between the two support seats. The upper end of the inkjet mechanism is connected to the inside of the ink cartridge through an ink guide hose. The support platform is used to support the overall structure, the positioning splint is used to fix the inkjet mechanism, and the inkjet mechanism is used to spray ink to form a pattern.

[0010] The preferred technical solution of the present invention is that the inkjet mechanism includes a movable plate, a guide horizontal plate, a nozzle, an external plate, a guide slider, a micro servo motor, a screw, an ink inlet interface tube, a magnetic suction sheet and a clamping edge conduction mechanism. The two ends of the guide horizontal plate are connected to the external plate to form a square bracket. A micro servo motor for driving is provided at the upper end of each guide horizontal plate. The output end of the micro servo motor is connected to the screw. The screw is clearance-fitted and passes through the inside of the guide slider. The guide slider is slidably mounted on the guide horizontal plate. The guide slider is connected to the end of the movable plate. The ink inlet interface tube is provided at the middle end of the top of the movable plate. The nozzle is provided at the bottom of the movable plate. At the middle end, the ink inlet interface tube is connected to the inside of the nozzle, the nozzle is electrically connected to the control circuit board, the edge clamping conduction mechanism is installed at the connection between the guide transverse plate and the external plate, and the magnetic sheet is provided at the connection between the guide transverse plate and the external plate. The guide transverse plate and the external plate are installed in the positioning clamping plate through the magnetic sheet. The two nozzles are respectively arranged on different movable plates, and each movable plate is driven by an independent micro servo motor. The moving directions of the movable plates are opposite, and the two nozzles do not affect each other. The inkjet speed does not need to be kept consistent, which greatly improves the inkjet efficiency; the edge clamping conduction mechanism is used to clamp the edge of the transfer paper to maintain the flatness of the transfer paper.

[0011] The preferred technical solution of the present invention is that the nozzle includes a connecting pipe, a micro motor, a screw shell, a drive plate and a nozzle body. The connecting pipe is installed at the lower end of the ink inlet interface tube, the lower end of the connecting pipe is installed in the middle of the upper end face of the nozzle body and is through-connected, the nozzle body is located at the bottom of the movable plate, the micro motor is installed at the edge end of the screw shell, a screw is provided inside the screw shell, the micro motor is connected to the screw inside the screw shell and rotates synchronously, the screw inside the screw shell adopts a clearance fit to pass through the inside of one end of the drive plate and is threadedly connected, the other end of the drive plate is fixedly mounted on the outer surface of the connecting pipe, and the nozzle body moves along the direction of the screw shell under the drive of the micro motor, and realizes the horizontal movement of the nozzle by cooperating with the micro servo motor.

[0012] The preferred technical solution of the present invention is that the edge clamping transmission mechanism includes a guide frame, an upper adjusting wheel, a mounting plate, a rotating shaft, a lower guide wheel, a spring, a clamping plate and a contact plate, the clamping plate is installed at the upper end of the mounting plate, and the mounting plate is mounted at the connection of the guide cross plate and the external plate through the clamping plate, a lower guide wheel is provided at the lower inner end of the mounting plate, the upper adjusting wheel is located above the lower guide wheel, a rotating shaft is provided at the axis center of the upper adjusting wheel, the guide frame is fixedly mounted on the mounting plate inside the upper end, the rotating shaft is slidably mounted on the lower end of the guide frame, the upper end of the rotating shaft conflicts with the lower end of the contact plate, and the upper end of the contact plate is connected to the lower end of the spring, the spring is fixedly mounted on the upper end of the guide frame, the transfer paper is clamped between the upper adjusting wheel and the lower guide wheel, and the spring action ensures that the transfer paper can move normally while clamping and transmitting the edge of the transfer paper to ensure that the transfer paper will not curl and always remains flat.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The technical solution of the present invention is to position and clamp the unwinding frame and the rewinding frame through the clamping mechanism, and the elastic mechanism of the clamping mechanism provides elastic supporting force for the clamping plate, thereby improving the stability of the unwinding frame and the rewinding frame in the process of rewinding and unwinding the transfer paper. The structure of fixing the clamping mechanism through the connecting piece is convenient for disassembly and assembly. When not in use, the four clamping mechanisms can be quickly disassembled to avoid the long extension length of the clamping mechanism, which makes it inconvenient to move the maintenance mechanism and easy to be damaged by collision. When the inkjet mechanism is performing inkjet printing, the two micro servo motors are independently operated, and finally The two nozzles are driven to operate independently, and the inkjet of the two nozzles does not affect each other. At the same time, the two nozzles are driven by two micro servo motors to perform reverse displacement inkjet. The speed and distance of the displacement of the two nozzles are not limited by the synchronous displacement, which effectively improves the speed of the nozzles in inkjet printing on the transfer paper and greatly improves the efficiency. During the transmission of the transfer paper in inkjet printing, the lower guide wheel and the upper adjustment wheel installed on the clamping and transmission mechanism on the left and right sides can clamp and transmit the side ends of the transfer paper, so as to avoid curling of the transfer paper during the inkjet printing process and affect the flatness of the inkjet printing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The figure is a structural schematic diagram of a digital inkjet printing device of a printing machine of the present invention.

[0015] Figure 2 It is a schematic diagram of a partially disassembled three-dimensional structure and a partially enlarged structure of the inkjet printing device of the present invention.

[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the clamping mechanism of the present invention.

[0017] Figure 4 It is a schematic diagram of the three-dimensional disassembled structure of the maintenance mechanism of the present invention.

[0018] Figure 5 It is a schematic diagram of the three-dimensional structure of the inkjet mechanism of the present invention.

[0019] Figure 6 It is a three-dimensional working and partially disassembled structural schematic diagram of the inkjet mechanism of the present invention.

[0020] Figure 7 Schematic diagram of the nozzle structure of the present invention.

[0021] Figure 8 It is a three-dimensional and partially enlarged structural schematic diagram of the edge clamping conduction mechanism of the present invention; Among them: 1- unwinding frame, 2- inkjet printing device, 3- rewinding frame, 4- maintenance mechanism, 41- maintenance top plate, 42- control panel, 43- top cover box, 44- support seat, 45- ink mechanism, 451- ink guide hose, 452- ink cartridge, 453- control circuit board, 454- support frame, 46- quick release mechanism, 47- inkjet mechanism, 471- moving plate, 472- guide horizontal plate, 473- print head, 474- external plate, 475- guide slider, 476- micro servo motor, 477- screw, 478- ink inlet interface tube, 479- Magnetic sheet, 4731-connecting pipe, 4732-micro motor, 4733-drive plate, 4734-screw housing, 4735-nozzle body, 48-positioning splint, 49-lower support platform, 5-clamping mechanism, 51-clamping plate, 52-plug-in rod, 53-external plate, 54-positioning hole, 55-elastic mechanism, 61-fixed plate, 62-elastic clamping rod, 63-positioning mounting groove, 7-clamping edge conduction mechanism, 71-guide frame, 72-upper adjustment wheel, 73-mounting plate, 74-rotating shaft, 75-lower guide wheel, 76-spring, 77-clamping plate, 78-contact plate. DETAILED DESCRIPTION

[0022] The following is a combination of the embodiments of the present invention Figure 1-8 , the technical solutions in the embodiments of the present invention are described in detail. Example 1

[0023] like Figure 1-4 As shown, the present invention is a digital inkjet printing device of a printing machine, whose structure includes a roll-out frame 1, an inkjet printing device 2 and a reel-up frame 3. The roll-out frame 1 is installed on the rear side of the inkjet printing device 2, and the reel-up frame 3 is installed on the front end of the inkjet printing device 2. The inkjet printing device 2 includes an inspection mechanism 4, a clamping mechanism 5 and a connecting piece. The clamping mechanism 5 is detachably connected to the front and rear sides of the inspection mechanism 4 through the connecting piece, and is used to clamp the reel-up frame 3 and the roll-out frame 1.

[0024] like Figure 2 As shown, the connecting part includes a fixing plate 61, an elastic clamping rod 62 and a positioning installation groove 63. The fixing plate 61 is welded and fixed to the surface of the maintenance mechanism 4. The elastic clamping rod 62 is clearance-fitted and passes through the inside of the fixing plate 61. The positioning installation groove 63 is embedded in the inside of the surface of the maintenance mechanism 4, and the positioning installation groove 63 is located below the fixing plate 61.

[0025] The clamping mechanism 5 is inserted into the positioning installation groove 63, and the lower end of the elastic clamping rod 62 is clamped and installed inside the rear end of the clamping mechanism 5, fixing the clamping mechanism 5 to the maintenance mechanism 4. At this time, the clamping mechanism 5 is in conflict with the outer surfaces of the unwinding frame 1 and the winding frame 3.

[0026] There are four clamping mechanisms 5 and connecting parts, two in a group, which are respectively fixed on the front and rear sides of the inspection mechanism 4. The clamping assembly 5 can be disassembled through the connecting parts to avoid the four clamping mechanisms 5 extending for a long length on the inspection mechanism 4, which makes it inconvenient to move the inspection mechanism 4 and easy to be damaged by collision. In addition, through the positioning installation of the four clamping mechanisms 5, the unwinding frame 1 and the winding frame 3 on the front and rear sides of the inspection mechanism 4 can be positioned and clamped, thereby improving the stability of the unwinding frame 1 and the winding frame 3 during the process of unwinding and winding the transfer paper.

[0027] like Figure 3 As shown, the clamping mechanism 5 includes a plug-in rod 52, a positioning hole 54, an external plate 53, an elastic mechanism 55 and a clamping plate 51. The plug-in rod 52 is used to cooperate with the positioning installation groove 63 so that the clamping mechanism 5 is plugged into the outer wall of the maintenance mechanism 4. The external plate 53 is welded to the front end of the plug-in rod 52, and a positioning hole 54 is embedded in the upper end of the external plate 53. The lower end of the elastic clamping rod 62 is clamped and installed in the positioning hole 54. The inner surface of the front end of the external plate 53 is welded to the outer end of the elastic mechanism 55, and the inner end of the elastic mechanism 55 is fixedly connected to the clamping plate 51. The clamping plate 51 is in conflict with the outer surfaces of the unwinding frame 1 and the winding frame 3.

[0028] There are two elastic mechanisms 55, which are composed of a fixed tube sleeve, a spring and an extrusion rod. The extrusion rod is elastically squeezed by the spring inside the fixed tube sleeve, so that the elastic mechanism 55 provides an elastic adjustment force for the clamping plate 51, so that the clamping plate 51 can elastically adjust and clamp the outer surfaces of the unwinding frame 1 and the winding frame 3, thereby improving the convenience of clamping the unwinding frame 1 and the winding frame 3.

[0029] like Figure 4 As shown, the maintenance mechanism 4 includes an inspection top plate 41, a control panel 42, a top cover box 43, a support seat 44, an ink mechanism 45 and a quick-release mechanism 46. The inspection top plate 41 is snap-fitted and installed on the top of the top cover box 43, and the top cover box 43 is installed on the upper end of the support seat 44. The control panel 42 is fixedly installed on the right side of the front surface of the top cover box 43. The control panel 42 is electrically connected to the ink mechanism 45 and the quick-release mechanism 46. The lower end of the ink mechanism 45 is snap-fitted and installed inside the support seat 44, and the upper end of the ink mechanism 45 is through-connected with the upper end of the quick-release mechanism 46. The quick-release mechanism 46 is snap-fitted and installed between the top cover box 43 and the two support seats 44.

[0030] The ink mechanism 45 includes a support frame 454, an ink cartridge 452, a control circuit board 453 and an ink guide hose 451. The support frame 454 is snap-fitted and installed inside the support base 44, and the ink cartridge 452 is plugged and installed inside the upper end of the support frame 454. A control circuit board 453 is installed at the front end of the support frame 454, and the control circuit board 453 is electrically connected to the control panel 42. The control circuit board 453 is electrically connected to the quick-release mechanism 46. The ink cartridge 452 is connected to the upper end of the quick-release mechanism 46 through the ink guide hose 451.

[0031] A cavity of the same size as the ink cartridge 452 is provided inside the upper end of the support frame 454, which improves the firmness of the ink cartridge 452 mounted inside the upper end of the support frame 454, prevents the ink cartridge 452 from falling off from the upper end of the support frame 454 during operation, and facilitates the removal of the ink cartridge 452 and the addition of ink to the ink cartridge 452 after the work is completed. Two ink guiding hoses 451 are provided, and both ink guiding hoses 451 are connected between the ink cartridge 452 and the quick-release mechanism 46. The two ink guiding hoses 451 can speed up the transfer of ink from the ink cartridge 452 to the quick-release mechanism 46.

[0032] The specific usage and function of this embodiment are as follows: When the inkjet printing device 2 is used to inkjet print the transfer paper, the transfer paper is unwound by the unwinding rack 1 behind the inkjet printing device 2, and the transfer paper enters the inkjet printing device 2 for inkjet printing. After inkjet printing, the transfer paper with inkjet printing is reeled up by the reeling rack 3. The unwinding rack 1 and the reeling rack 3 are placed in the front and rear positions of the inkjet printing device 2 for reeling and unwinding. The elastic mechanism 55 at the inner end of the external plate 53 provides elastic support force for the clamping plate 51, so that the clamping plate 51 positions and clamps the outer surfaces of the unwinding rack 1 and the reeling rack 3, thereby improving the stability of the unwinding rack 1 and the reeling rack 3 during the process of reeling and unwinding the transfer paper. At the same time, the four external plates 53 are installed in the inkjet printing device 2 by plugging the connecting rod 52 at the rear end of the external plate 53 into the positioning mounting groove 63. , and then the four elastic clamping rods 62 are engaged and positioned in the positioning holes 54 at the upper end of the external plate 53 for elastic fixation, which is convenient for disassembly and assembly of the clamping mechanism 5. The four clamping mechanisms 5 can be quickly removed when not in use, avoiding the four clamping mechanisms 5 extending for a long length on the maintenance mechanism 4, which makes it inconvenient to move the maintenance mechanism 4 and easy to be damaged by collision. When the inkjet printing device 2 is performing inkjet printing, the control circuit board 453 is controlled by the control panel 42 to work, and the ink inside the ink cartridge 452 can be transferred to the inkjet mechanism 47 on the quick-release mechanism 46 through the ink guide hose 451 for spraying. The speed of transferring the ink to the inside of the inkjet mechanism 47 is accelerated through the two ink guide hoses 451, thereby performing inkjet printing on the transfer paper located above the lower support platform 49. Example 2

[0033] like Figure 4-8 As shown, the quick-release mechanism 46 includes a positioning splint 48, an inkjet mechanism 47, and a lower support platform 49. The positioning splint 48 is welded to the inner surface of the support seat 44, and the positioning splint 48 is in conflict with the corner end of the inkjet mechanism 47. The lower support platform 49 is located below the inkjet mechanism 47, and the inkjet mechanism 47 and the lower support platform 49 are both located below the top cover box 43. The lower support platform 49 is fixedly installed between the two support seats 44. The upper end of the inkjet mechanism 47 is connected to the inside of the ink cartridge 452 through an ink guide hose 451.

[0034] There are eight positioning clamps 48, and two are in a group. The four groups of positioning clamps 48 are respectively arranged at the four corners on the opposite sides of the two support seats 44. The four groups of positioning clamps 48 are used to position and clamp the four corner ends of the inkjet mechanism 47, thereby improving the convenience of disassembly and assembly of the inkjet mechanism 47 and facilitating the removal and maintenance of the inkjet mechanism 47.

[0035] like Figure 5-6As shown, the inkjet mechanism 47 includes a guide horizontal plate 472, an external plate 474, a micro servo motor 476, a screw 477, a guide slider 475, a movable plate 471, an ink inlet interface tube 478, a nozzle 473, a magnetic sheet 479 and a clamping edge conduction mechanism 7. The end of the guide horizontal plate 472 is welded to the end of the external plate 474, and the micro servo motor 476 is installed at the upper end of the guide horizontal plate 472. The output end of the micro servo motor 476 is welded to the screw 477, and the screw 477 is clearance-fitted and penetrates the interior of the guide slider 475. The guide slider 475 is slidably mounted on the guide horizontal plate 472. Inside, the guide slider 475 is welded to the end of the movable plate 471, the ink inlet interface tube 478 is arranged at the middle end of the top of the movable plate 471, and the ink inlet interface tube 478 is connected to the inside of the nozzle 473, the nozzle 473 is electrically connected to the control circuit board 453, and the nozzle 473 is arranged at the middle end of the bottom of the movable plate 471, the clamping edge conduction mechanism 7 is clamped and installed at the connection between the guide transverse plate 472 and the external plate 474, the magnetic sheet 479 is arranged at the connection between the guide transverse plate 472 and the external plate 474, and the guide transverse plate 472 and the external plate 474 are clamped and installed in the positioning clamp 48 through the magnetic sheet 479.

[0036] There are two guide transverse plates 472 and two external plates 474, and the two guide transverse plates 472 are symmetrical in front and back and are welded to the two symmetrical external plates 474 to form a square bracket structure. At the same time, four magnetic plates 479 are arranged at the four corner end positions where the guide transverse plates 472 and the external plates 474 are connected. The four magnetic plates 479 are magnetically engaged with the four groups of positioning clamps 48 to improve the convenience of disassembly and assembly of the square bracket formed by the guide transverse plates 472 and the external plates 474.

[0037] The micro servo motor 476, screw 477, guide slider 475, movable plate 471, ink inlet interface tube 478 and nozzle 473 are each provided with two, and the two micro servo motors 476 are installed on the opposite left and right sides of the two guide transverse plates 472. Through the operation of the two micro servo motors 476, the two guide sliders 475 can be driven to slide in the opposite direction, thereby driving the two movable plates 471, ink inlet interface tube 478 and nozzle 473 to run in the opposite direction. At the same time, the reverse operation of the two movable plates 471 is limited by the guide of the two guide transverse plates 472, and the left and right sides of the pattern are synchronously inkjet printed by the two nozzles 473. At the same time, the two nozzles 473 pass through the nozzles 473 to print the left and right sides of the pattern. The same micro servo motor 476 drives the displacement, and the inkjet of the two nozzles 473 is limited by the synchronous displacement. When one of the nozzles 473 is performing inkjet work, once there is inkjet under the other nozzle 473, it cannot continue to spray ink. If one of the nozzles 473 stops working, the inkjet speed will be reduced, and the two micro servo motors 476 drive the two nozzles 473 to perform reverse displacement inkjet. The speed and distance of the displacement of the two nozzles 473 are not limited by the synchronous displacement, and the inkjet printing pattern is divided into two parts, left and right. The two nozzles 473 work synchronously and are not limited by the synchronous displacement to effectively improve the speed of the nozzle 473 in inkjet printing on the transfer paper.

[0038] like Figure 7 As shown, the nozzle 473 includes a pipe 4731, a micro motor 4732, a screw housing 4734, a drive plate 4733, and a nozzle body 4735. The pipe 4731 is fixedly mounted on the lower end of the ink inlet interface tube 478, and the lower end of the pipe 4731 is fixedly mounted on the middle part of the upper end surface of the nozzle body 4735 and is connected through it. The nozzle body 4735 is located at the bottom of the movable plate 471, and the micro motor 4732 is fixedly mounted on the edge end of the screw housing 4734. A screw is provided inside the screw housing 4734. The micro motor 4732 is welded to the screw inside the screw housing 4734 and rotates synchronously. The screw inside the screw housing 4734 is clearance-fitted and penetrates the interior of one end of the drive plate 4733 and is threadedly connected. The other end of the drive plate 4733 is fixedly mounted on the outer surface of the pipe 4731. The micro motor 4732 is coaxially welded to the screw inside the screw housing 4734, so that when the micro motor 4732 rotates, it can drive the screw inside the screw housing 4734 to rotate stably, thereby driving the driving plate 4733 to translate along the direction of the screw housing 4734, driving the connecting pipe 4731 and the nozzle body 4735 to move back and forth, and combined with the micro servo motor 476 at the upper end to drive the moving plate 471 and the nozzle 473 to move left and right, so that the nozzle body 4735 can move back and forth, left and right, thereby increasing the inkjet area of ​​the transfer paper, thereby increasing the speed of inkjet printing on the transfer paper.

[0039] like Figure 8 As shown, the edge clamping transmission mechanism 7 includes a clamping plate 77, a mounting plate 73, a lower guide wheel 75, an upper adjusting wheel 72, a guide frame 71, a spring 76, a contact plate 78, and a rotating shaft 74. The clamping plate 77 is mounted on the upper end of the mounting plate 73, and the mounting plate 73 is clamped and mounted at the connection between the guide cross plate 472 and the external plate 474 through the clamping plate 77. A lower guide wheel 75 is provided at the lower end of the inner side of the mounting plate 73, and the upper adjusting wheel 72 is located above the lower guide wheel 75. A rotating shaft 74 is provided at the axis of the upper adjusting wheel 72. The guide frame 71 is fixedly mounted inside the upper end, and the rotating shaft 74 is slidably mounted inside the lower end of the guide frame 71. The upper end of the rotating shaft 74 contacts the lower end of the contact plate 78, and the upper end of the contact plate 78 is welded to the lower end of the spring 76. The spring 76 is fixedly mounted on the upper end of the inner part of the guide frame 71.

[0040] There are two locking plates 77, and they are arranged at the front and rear ends of the upper end of the mounting plate 73. The two locking plates 77 can stably lock the mounting plate 73 at the connection between the guide cross plate 472 and the external plate 474, so that the orientation of the mounting plate 73 and the external plate 474 remain in the same straight line. A groove is provided in the middle of the mounting plate 73, and the lower guide wheel 75 and the upper adjustment wheel 72 are located on the inner side of the groove in the middle of the mounting plate 73. The rotating shaft 74 is elastically adjusted inside the guide frame 71 through the spring 76 and the contact plate 78, driving the upper adjustment wheel 72 to be fine-tuned up and down. The lower guide wheel 75 and the upper adjustment wheel 72 installed on the clamping transmission mechanism 7 on the left and right sides can clamp and transmit the side ends of the transfer paper to prevent the transfer paper from curling during the inkjet printing process and affecting the flatness of the inkjet printing.

[0041] The specific usage and function of this embodiment are as follows: When the inkjet printing is performed, the control circuit board 453 controls the two micro servo motors 476 to independently operate and drive the two screws 477 to rotate, which can drive the two guide sliders 475 to slide in the opposite direction, thereby driving the two movable plates 471, the ink inlet interface tube 478 and the nozzle 473 to operate in the opposite direction. At the same time, the reverse operation of the two movable plates 471 is limited by the two guide cross plates 472 to prevent the inkjet of the two nozzles 473 from affecting each other. The two nozzles 473 are used to perform synchronous inkjet printing on the left and right sides of the pattern respectively. At the same time, the two micro servo motors 476 drive the two nozzles 473 to perform reverse displacement inkjet. The speed and distance of the displacement of the two nozzles 473 are not limited by the synchronous displacement, and the inkjet printing pattern is divided into two parts, left and right. The screw inside the screw housing 4734 is driven by the micro motor 4732 to rotate stably, thereby driving the driving plate 4733 to translate along the direction of the screw housing 4734, driving the connecting pipe 4731 and the nozzle body 4735 to move back and forth, combined with the inkjet printing mechanism 477. The micro servo motor 476 at the upper end drives the movable plate 471 and the nozzle 473 to move left and right, so that the nozzle body 4735 can move forward, backward, left and right, increasing the inkjet area of ​​the transfer paper. The inkjet work of the two nozzles 473 is synchronized and not limited by the synchronous displacement, which effectively improves the speed of the nozzle 473 for inkjet printing on the transfer paper. At the same time, during the inkjet printing transmission process, the transfer paper is elastically adjusted by the spring 76 and the contact plate 78 inside the guide frame 71 through the rotating shaft 74, driving The upper adjustment wheel 72 is fine-tuned up and down, and the side ends of the transfer paper can be clamped and conducted through the lower guide wheel 75 and the upper adjustment wheel 72 installed on the clamping and conducting mechanism 7 on the left and right sides, so as to avoid the transfer paper from curling up during the inkjet printing process and affecting the flatness of the inkjet printing. Finally, after the inkjet printing is completed, the magnetic sheets 479 arranged at the four corner ends of the inkjet mechanism 47 are positioned and magnetically clamped through four groups of positioning clamps 48, thereby improving the convenience of disassembly and assembly of the inkjet mechanism 47 and facilitating the removal and maintenance of the inkjet mechanism 47.

[0042] The above embodiments are only for illustrating the technical idea of ​​the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention fall within the protection scope of the present invention.

Claims

1. A digital inkjet printing device for a printing machine, comprising an unwinding frame (1), an inkjet printing device (2), and a rewinding frame (3), wherein the unwinding frame (1) is arranged at the rear side of the inkjet printing device (2), and the rewinding frame (3) is arranged at the front side of the inkjet printing device (2), and is characterized in that: The inkjet printing device (2) comprises an inspection mechanism (4), a clamping mechanism (5) and a connecting piece. Connecting pieces are arranged on both the front and rear outer walls of the inspection mechanism (4). The clamping mechanism (5) is detachably connected to the outer wall of the inspection mechanism (4) via the connecting piece. The front and rear clamping mechanisms (5) are respectively fitted with the outer surfaces of both sides of the winding frame (3) and the unwinding frame (1). Two nozzles (473) for inkjet are arranged in the inspection mechanism (4), and each nozzle (473) works independently.

2. The digital inkjet printing device of a printing machine according to claim 1, characterized in that: The connecting member comprises a positioning installation groove (63) and a fixing plate (61); the positioning installation groove (63) for plugging the clamping mechanism (5) is arranged on the front and rear side surfaces of the inspection mechanism (4); the fixing plate (61) is connected to the outer wall of the inspection mechanism (4) and is located above the positioning installation groove (63); the elastic clamping rod (62) penetrates the fixing plate (61) with a clearance fit, and the lower end of the elastic clamping rod (62) is clamped into the rear end of the clamping mechanism (5).

3. The digital inkjet printing device of a printing machine according to claim 2, characterized in that: The clamping mechanism (5) comprises a clamping plate (51), a plug-in rod (52), an external plate (53), a positioning hole (54) and an elastic mechanism (55); the plug-in rod (52) is plugged into the interior of the positioning installation groove (63); the external plate (53) is arranged at the front end of the plug-in rod (52); the rear upper end of the external plate (53) is provided with a positioning hole (54) that cooperates with the elastic clamping rod (62); the inner surface of the front end of the external plate (53) is connected to the elastic mechanism (55); and the inner end of the elastic mechanism (55) is provided with a clamping plate (51) for fitting and clamping the unwinding frame (1) or the winding frame (3).

4. The digital inkjet printing device of a printing machine according to claim 1, characterized in that: The inspection mechanism (4) comprises an inspection top plate (41), a control panel (42), a top cover box (43), a support seat (44), an ink mechanism (45) and a quick release mechanism (46); the inspection top plate (41) is arranged on the upper part of the top cover box (43); the top cover box (43) is mounted on the upper end of the support seat (44); a control panel (42) is arranged on the right side of the front surface of the top cover box (43); the control panel (42) is electrically connected to the ink mechanism (45) and the quick release mechanism (46); the lower end of the ink mechanism (45) is arranged inside the support seat (44); the upper end of the ink mechanism (45) is connected to the upper end of the quick release mechanism (46); and the quick release mechanism (46) is arranged between the top cover box (43) and the two support seats (44).

5. The digital inkjet printing device of a printing machine according to claim 4, characterized in that: The ink mechanism (45) comprises an ink guide hose (451), an ink cartridge (452), a control circuit board (453) and a support frame (454); the support frame (454) is arranged inside the support seat (44); the ink cartridge (452) is plugged into the interior of the upper end of the support frame (454); a control circuit board (453) is arranged on the front end outer wall of the support frame (454); the control circuit board (453) is electrically connected to the control panel (42); the control circuit board (453) is electrically connected to the quick release mechanism (46); and the ink cartridge (452) is connected to the upper end of the quick release mechanism (46) via the ink guide hose (451).

6. The digital inkjet printing device of a printing machine according to claim 5, characterized in that: The quick-release mechanism (46) comprises an inkjet mechanism (47), a positioning clamp (48) and a lower support platform (49); the positioning clamp (48) is mounted on the inner surface of the support seat (44), and the positioning clamp (48) abuts against the corner end of the inkjet mechanism (47); the lower support platform (49) is located below the inkjet mechanism (47); the inkjet mechanism (47) and the lower support platform (49) are both located below the top cover box (43); the lower support platform (49) is fixedly mounted between the two support seats (44); and the upper end of the inkjet mechanism (47) is connected to the inside of the ink cartridge (452) via an ink guide hose (451).

7. The digital inkjet printing device of a printing machine according to claim 6, characterized in that: The inkjet mechanism (47) comprises a movable plate (471), a guide transverse plate (472), a nozzle (473), an external plate (474), a guide slider (475), a micro servo motor (476), a screw (477), an ink inlet interface tube (478), a magnetic sheet (479) and an edge clamping conduction mechanism (7). The two ends of the guide transverse plate (472) are connected to the external plate (474) to form a square bracket. A micro servo motor (476) for driving is arranged at the upper end of each guide transverse plate (472). The output end of the micro servo motor (476) is connected to the screw (477). The screw (477) is inserted into the guide slider (475) by a clearance fit. The guide slider (475) is slidably arranged The ink inlet interface tube (478) is arranged at the middle end of the top of the movable plate (471); the nozzle (473) is arranged at the middle end of the bottom of the movable plate (471); the ink inlet interface tube (478) is connected to the inside of the nozzle (473); the nozzle (473) is electrically connected to the control circuit board (453); the edge clamping conduction mechanism (7) is arranged at the connection between the guide transverse plate (472) and the external plate (474); the magnetic suction sheet (479) is arranged at the connection between the guide transverse plate (472) and the external plate (474); the guide transverse plate (472) and the external plate (474) are arranged in the positioning clamping plate (48) through the magnetic suction sheet (479).

8. The digital inkjet printing device of a printing machine according to claim 7, characterized in that: The nozzle (473) comprises a pipe (4731), a micro motor (4732), a screw housing (4734), a drive plate (4733) and a nozzle body (4735); the pipe (4731) is mounted on the lower end of the ink inlet interface tube (478); the lower end of the pipe (4731) is mounted on the middle part of the upper end surface of the nozzle body (4735) and is connected through; the nozzle body (4735) is located at the bottom of the movable plate (471); the micro motor (4732) is mounted on the edge end of the screw housing (4734); a screw is provided inside the screw housing (4734); the micro motor (4732) is connected to the screw inside the screw housing (4734) and rotates synchronously; the screw inside the screw housing (4734) is clearance-fitted and penetrates the interior of one end of the drive plate (4733) and is threadedly connected; the other end of the drive plate (4733) is fixedly mounted on the outer surface of the pipe (4731).

9. The digital inkjet printing device of a printing machine according to claim 7, characterized in that: The edge clamping transmission mechanism (7) comprises a guide frame (71), an upper adjustment wheel (72), a mounting plate (73), a rotating shaft (74), a lower guide wheel (75), a spring (76), a clamping plate (77) and a contact plate (78), wherein the clamping plate (77) is mounted on the upper end of the mounting plate (73), and the mounting plate (73) is clamped and mounted at the connection between the guide cross plate (472) and the external plate (474) through the clamping plate (77), and a lower guide wheel is provided at the inner lower end of the mounting plate (73). (75), the upper adjusting wheel (72) is located above the lower guide wheel (75), a rotating shaft (74) is provided at the axis of the upper adjusting wheel (72), the guide frame (71) is fixedly mounted inside the upper end of the mounting plate (73), the rotating shaft (74) is slidably mounted inside the lower end of the guide frame (71), the upper end of the rotating shaft (74) is in contact with the lower end of the contact plate (78), and the upper end of the contact plate (78) is connected to the lower end of the spring (76), and the spring (76) is fixedly mounted on the upper end of the guide frame (71).

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