Printing device capable of automatically rectifying deviation

Abstract

The invention relates to the technical field of printing devices, in particular to a printing device capable of automatically rectifying deviation, which comprises a printing machine body, a printing cylinder is slidably connected to the upper surface of the printing machine body, a conveying device is arranged between the printing machine body, and a deviation rectifying mechanism is arranged on the upper surface of one side of the printing machine body; by means of the deviation correcting mechanism, the position of the printing cloth can be corrected in time when the position of the printing cloth deviates, so that the position of the printing cloth is monitored and adjusted in real time, the printing content is accurately positioned at the expected position, printing errors caused by deviation are avoided, and the overall precision and quality of printing are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of printing devices, and in particular to a printing device capable of automatically correcting deviation. Background Art

[0002] A printing device is a device that transfers text, pictures, photos, and other originals to the surface of paper, fabrics, plastics, leather, and other materials through processes such as plate making, inking, and pressurization. It can be used to batch copy the content of the original, so that the graphics and text can maintain consistent clarity.

[0003] When the printing device is printing, the cloth to be printed needs to be placed on the printing device. When the cloth is driven by the conveying roller, the impression roller can roll on the surface of the cloth to evenly transfer the ink on the impression roller to the paper. However, the printed cloth is prone to slight deviation during the long printing process, and the deviation will gradually increase as the cloth continues to be printed, resulting in a large number of unqualified prints.

[0004] Therefore, the present invention provides a printing device capable of automatically correcting deviation to compensate for and improve the deficiencies of the prior art. Summary of the invention

[0005] In view of the defects existing in the prior art, the present invention provides a printing device capable of automatically correcting deviation, which can effectively solve the above-mentioned technical problems.

[0006] The technical implementation scheme of the present invention is: a printing device capable of automatically correcting deviation, comprising a printing body, a printing cylinder being slidably connected to the upper surface of the printing body, a conveying device being arranged between the printing bodies, and a correcting mechanism being arranged on the upper surface of one side of the printing body.

[0007] The correcting mechanism includes a gantry fixedly connected to the upper left surface of the printing machine body, the upper end of the gantry is slidably connected to a first sliding frame, the first sliding frame is in slide grooves at both ends of the gantry, the upper surface of the first sliding frame is rotatably connected to a rotating rod, the middle of the rotating rod is fixedly connected to the bottom of the first sliding frame by a fixed block, both ends of the rotating rod are connected to screws, and the rotation directions of the screws are opposite, the outer surfaces of the screws are threadedly connected to trigger members, and the bottom of the trigger member is slidably connected to the first sliding frame by means of a slide groove and a slider; a second sliding frame is also provided on one side of the first sliding frame, and a transmission assembly is provided between the first sliding frame and the second sliding frame, and the transmission assembly is used to make the first sliding frame and the second sliding frame move in opposite directions.

[0008] Preferably, a rack is fixedly connected to one side of the upper end of the second sliding frame, and a correction cylinder is rotatably connected to the upper surface of the second sliding frame. The correction cylinder is used to assist the transmission of the printed cloth, and the second sliding frame is slidably connected to a support frame fixedly connected to the printing machine body.

[0009] Preferably, the transmission assembly includes a connecting rod arranged in the middle position of the rotating rod and passing through the connecting rod, the right end of the connecting rod is connected to a swinging member, the right end of the front side of the swinging member is connected to a limiting rod, the limiting rod is rotatably connected to the upper end of the swinging member, and the bottom of the limiting rod is fixedly connected to the upper surface of the left side of the printing machine body.

[0010] An arc-shaped toothed disc is also provided on one side of the swinging member, and a gear set is meshed on the outer surface of the right side of the toothed disc. The gear set is composed of two meshing gears. A support frame is rotatably connected between the bottoms of the gear sets, and the bottom of the support frame is fixedly connected to the upper surface of the left side of the printing machine body; the gear set is meshed with the rack gear.

[0011] Preferably, the upper surface of the support frame is provided with three directional grooves in a straight line, and three mounting blocks are provided at the bottom of the second sliding frame. The mounting blocks are slidably connected in the directional grooves, and rollers are provided on both sides of the mounting blocks. The rollers are located at the upper end of the support frame and on both sides of the directional grooves, and the outer surfaces of the rollers are slidably connected to the upper surface of the support frame, and the rollers can assist the second sliding frame to slide on the upper surface of the support frame.

[0012] Preferably, it also includes a smoothing mechanism arranged on the upper surface of the middle part of the printing machine body, the smoothing mechanism includes a mounting plate fixedly connected to the upper surface of the left side of the printing machine body, a centering wheel is provided on the mounting plate, a sliding member is fixedly connected to the outer surface of the bottom of the centering wheel, a servo motor is fixedly connected to the side of the top of the sliding member close to each other, the output shaft of the bottom of the servo motor is fixedly connected to the flattening member, the rear servo motor rotates clockwise, and the front servo motor rotates counterclockwise.

[0013] Preferably, a slide groove is provided in the middle of the mounting plate, and a bidirectional screw rod is provided inside the slide groove. Both sides of the bidirectional screw rod are rotatably connected to the mounting plate, and the other end also passes through the mounting plate. The outer surface of the bidirectional screw rod is symmetrically threaded with sliding blocks, and the sliding blocks are in the slide groove. The upper surfaces of the sliding blocks are fixedly connected with a centering wheel, and a slot is also provided in the middle of the centering wheel.

[0014] Preferably, it also includes a centering reset mechanism arranged on the side where the trigger members are away from each other, the centering reset mechanism includes a first extrusion member fixedly connected to the side where the trigger members are away from each other, the side where the first extrusion member is away from each other is stepped and inclined, through grooves are provided on the tops of both sides of the gantry, a third sliding frame slides in the through grooves of the gantry, a square groove is provided at the center of the upper surface of the gantry, a wedge block is fixedly connected to the bottom of the first sliding frame, the wedge block passes through and is slidably connected to the square groove; the upper surface of the bottom of the third sliding frame is symmetrically fixedly connected to the second extrusion member, the upper surface of the bottom of the third sliding frame is symmetrically fixedly connected to the spring, the top ends of the springs are fixedly connected to the upper surface of the gantry with the through grooves.

[0015] Preferably, two sides of the top of the third sliding frame are pressed and matched with stepped inclined surfaces of the first extrusion member that are away from each other; and the upper surfaces of the second extrusion member are pressed and matched with the inclined surfaces of the bottom of the wedge block.

[0016] Preferably, the conveying device includes a feed unwinding roller, a winding roller and a transmission roller, the feed unwinding roller is rotatably connected to the left side of the printing body, the right side of the printing body is rotatably connected to the winding roller, one end of the winding roller is fixedly connected to a driving motor, the outer surface of the feed unwinding roller is wound with printing cloth, one end of the printing cloth passes through the inner side of the printing body and is wound around the outer surface of the winding roller, and the upper surface of the inner side of the printing body is symmetrically rotatably connected to the transmission roller.

[0017] Compared with the prior art, the present invention has the following advantages: 1. The present invention uses a correction mechanism to promptly correct the position of the printed cloth when it deviates, thereby monitoring and adjusting the position of the printed cloth in real time, so that the printed content is accurately positioned at the expected position, avoiding printing errors caused by deviation, and improving the overall accuracy and quality of printing. The correction mechanism can automatically and quickly complete the adjustment without manual intervention, which not only greatly saves adjustment time but also improves production efficiency.

[0018] 2. The present invention can remove wrinkles and unevenness on the surface of the printed cloth through the smoothing mechanism, so that the printing cylinder can fit more closely on the printed cloth, which can not only make the printed content clearly visible, but also avoid problems such as blurring and ghosting during the printing process, thereby greatly improving the printing quality. The surface of the printed cloth after smoothing is smoother, and the presentation effect of the printed pattern and text is more three-dimensional and fuller.

[0019] 3. The present invention can return to the initial position after the correction is completed through the centering reset mechanism, so that the correction mechanism can prepare for the next correction action and can immediately enter the working state. After the correction device returns to the center, it can more accurately locate the position of a new roll of printed cloth, thereby improving the accuracy of the installation position of the printed cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 For the present invention Figure 1 Schematic diagram of the structure of removing the printed cloth 121.

[0022] Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure in the middle.

[0023] Figure 4 For the present invention Figure 3 Schematic diagram of the cross-sectional structure of the third sliding frame.

[0024] Figure 5 For the present invention Figure 2 Enlarged schematic diagram of the structure at point B in the middle.

[0025] Figure 6 For the present invention Figure 5 Schematic diagram of the cross-section structure in use status.

[0026] The markings of the components in the accompanying drawings are as follows: 1-printing machine body, 11-printing cylinder, 12-feeding roller, 121-printing cloth, 13-winding roller, 14-transmission roller, 2-first sliding frame, 2001-gantry, 21-rotating rod, 211-trigger, 212-connecting rod, 22-screw, 23-correcting cylinder, 24-rack, 25-gear set, 26-second sliding frame, 261-roller, 262-support frame, 27-swinging member, 271-limiting rod, 28-toothed disc, 3-slide rail, 31-bidirectional screw, 32-sliding block, 33-centering wheel, 34-sliding member, 35-servo motor, 36-flattening member, 4-first extrusion member, 41-third sliding frame, 42-wedge block, 43-second extrusion member, 44-spring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] The following is combined with Figure 1-Figure 6 The present invention is further described with reference to the accompanying drawings and examples.

[0029] Embodiments of the present invention: Reference Figure 1 to Figure 2 As shown, a printing device capable of automatically correcting deviation includes a printing body 1, the upper surface of which is slidably connected to two printing cylinders 11, a conveying device is arranged between the printing bodies 1, the conveying device includes a feeding roller 12 rotatably connected to the left side of the printing body 1, a winding roller 13 rotatably connected to the right side of the printing body 1, a driving motor is fixedly connected to the front side of the winding roller 13, and the driving motor on the front side of the winding roller 13 winds up the printing cloth 121, and transmission rollers 14 are symmetrically connected to the two sides of the inner side of the printing body 1, and the transmission rollers 14 are used for auxiliary transmission of the printing cloth 121; the printing cloth 121 sequentially passes from the feeding roller 12, bypasses the transmission roller 14 and passes between the two printing cylinders 11, and is finally wound around the outer surface of the winding roller 13.

[0030] That is, when printing, the cloth to be printed needs to be placed on the printing device. When the cloth is driven by the conveying roller, the impression roller can roll on the surface of the cloth to evenly transfer the ink on the impression roller to the paper. However, as the printed cloth 121 is printed for a long time, it is easy to slightly deviate, and as the printed cloth 121 continues to print, the deviation will gradually increase, resulting in a large number of unqualified prints.

[0031] Therefore, it is necessary to use a correction structure to correct the specific position of the printed cloth 121. The correction mechanism includes a gantry 2001 fixedly connected to the upper surface of the left side of the printing machine body 1, and the upper end of the gantry 2001 is slidably connected to a first sliding frame 2, and the first sliding frame 2 is in the slide grooves at both ends of the gantry 2001 (not shown in the figure), and the upper surface of the first sliding frame 2 is rotatably connected to a rotating rod 21, and the middle of the rotating rod 21 is fixedly connected to the bottom of the first sliding frame 2 through a fixed block, and both ends of the rotating rod 21 are connected to screws 22, and the rotation directions of the screws 22 are in opposite states, and the outer surface of the screw 22 is threadedly connected to a trigger member 211, and the bottom of the trigger member 211 is slidably connected to the first sliding frame 2 through a slide groove and a slider.

[0032] By arbitrarily rotating the screw rod 22 at one end, the trigger member 211 can be driven to move toward or away from each other, and the side of the trigger member 211 that is close to each other can also limit the front and back sides of the printed cloth 121, and can monitor and adjust the position of the printed cloth 121 in real time, so that the printed content is accurately positioned at the expected position, avoiding printing errors caused by offset, and improving the overall accuracy and quality of printing.

[0033] A second sliding frame 26 is further provided on one side of the first sliding frame 2 , and a transmission assembly is provided between the first sliding frame 2 and the second sliding frame 26 , wherein the transmission assembly is used to enable the first sliding frame 2 and the second sliding frame 26 to move in opposite directions.

[0034] A rack 24 is fixedly connected to one side of the upper end of the second sliding frame 26, and a correction cylinder 23 is rotatably connected to the upper surface of the second sliding frame 26. The correction cylinder 23 is used to assist the printing cloth 121 in transmission, and the second sliding frame 26 is slidably connected to a support frame 262 fixedly connected to the printing machine body 1. It should be noted that, due to the correction cylinder 23, the printing cloth 121 sequentially passes from the unwinding roller 12, bypasses the correction cylinder 23, bypasses the transmission roller 14, passes between the two printing cylinders 11, and finally wraps around the outer surface of the winding roller 13.

[0035] That is, when the printed cloth on the first sliding frame 2 is offset, it will drive the first sliding frame 2 to move. At this time, correction is required, and the second sliding frame 26 needs to be offset in the opposite direction of the first sliding frame 2. Based on this, the present application adopts the following measures: the transmission assembly includes a connecting rod 212 arranged in the middle position of the rotating rod 21 and penetrated therethrough, the right end of the connecting rod 212 is connected to a swing member 27, and the right end of the front side of the swing member 27 is connected to a limiting rod 271, the limiting rod 271 is rotatably connected to the upper end of the swing member 27, and the bottom of the limiting rod 271 is fixedly connected to the upper surface of the left side of the printing machine body 1, that is, as the first sliding frame 2 slides, it can drive the connecting rod 212 to move at the same time, and at this time the swing member 27 swings with the limiting rod 271 as the rotating axis. It should be noted that the position of the limiting rod 271 at the swing member 27 can be adjusted according to actual conditions.

[0036] An arc-shaped toothed disc 28 is also provided on one side of the swinging member 27, and a gear set 25 is meshed with the outer surface of the right side of the toothed disc 28. The gear set 25 is composed of two meshing gears. A support frame 262 is rotatably connected between the bottoms of the gear sets 25, and the bottom of the support frame 262 is fixedly connected to the upper surface of the left side of the printing machine body 1; the gear set 25 is meshed with the rack 24.

[0037] That is, when the connecting rod 212 drives the right end of the swinging member 27 to move forward, since the outer surface of the top of the limiting rod 271 is rotatably connected to the right end of the front side of the swinging member 27, the limiting rod 271 can drive the swinging member 27 to swing counterclockwise. At this time, the toothed disc 28 swings counterclockwise. When the toothed disc 28 swings counterclockwise, it can drive the meshing gear on the rear side of the gear set 25 to rotate clockwise. When the meshing gear on the rear side of the gear set 25 rotates clockwise, it will drive the meshing gear on the front side to rotate counterclockwise. The outer surface of the meshing gear on the front side of the gear set 25 is meshed with a rack 24. When the meshing gear on the front side of the gear set 25 rotates clockwise, it will cause the rack 24 to slide backward; then it drives the second sliding frame 26 and the first sliding frame 2 to slide in opposite directions; thereby achieving the purpose of real-time correction.

[0038] It should be noted that: since the limiting rod 271 is rotatably connected to the upper end of the swinging member 27, and the position of the limiting rod 271 on the swinging member 27 can be adjusted according to actual conditions, that is, when the connecting rod 212 drives the left end of the swinging member 27 to swing slightly, the right end of the swinging member 27 can drive the toothed disc 28 to increase the swinging force, thereby converting the smaller swinging force on the left side of the swinging member 27 into a larger swinging force on the right side to increase the correction force.

[0039] As mentioned above, the second sliding frame 26 is slidably connected to the support frame 262 fixedly connected to the printing machine body 1. Specifically: the upper surface of the support frame 262 is linearly penetrated with three directional grooves, and the bottom of the second sliding frame 26 is provided with three mounting blocks, and the mounting blocks are slidably connected in the directional grooves. Rollers 261 are provided on both sides of the mounting blocks, and the rollers 261 are located at the upper end of the support frame 262 and on both sides of the directional grooves, and the outer surfaces of the rollers 261 are slidably connected to the upper surface of the support frame 262. The rollers 261 can assist the second sliding frame 26 to slide on the upper surface of the support frame 262, that is, when the second sliding frame 26 drives the correction cylinder 23 to slide in the square groove on the upper surface of the support frame 262, the printed cloth 121 on the outer surface of the correction cylinder 23 can be pulled in the opposite direction, thereby assisting the printed cloth 121 to return to the correct position.

[0040] That is, the principle of correcting the deviation of the printing cloth 121 by the correction mechanism in this embodiment is as follows: in the initial state, the trigger member 211 is in the unfolded state. When the printing cloth 121 is placed between the feeding roller 12 and the winding roller 13 for transportation, the staff can rotate any end of the screw 22 according to the width of the printing cloth 121. When the screw 22 rotates, it can drive the other screw 22 to rotate at the same time through the rotating rod 21. Since the bottom of the trigger member 211 is slidably connected to the outer surface of the first sliding frame 2, as the two screws 22 rotate at the same time, the trigger member 211 will be driven to slide toward the side close to each other, so that the side of the trigger member 211 close to each other can fit the two sides of the printing cloth 121.

[0041] When the printed cloth 121 deviates forward, the front side of the printed cloth 121 can squeeze the trigger member 211 on the front side, so that the trigger member 211 on the front side can drive the rotating rod 21 to slide forward through the screw 22. Since the rotating rod 21 is fixedly connected to the first sliding frame 2 through the fixed block, when the rotating rod 21 slides forward, it will drive the connecting rod 212 to slide at the same time through the first sliding frame 2, and when the connecting rod 212 slides forward, it can drive the left end of the swinging member 27 to swing counterclockwise. Since the outer surface of the top of the limiting rod 271 is rotatably connected to the left side of the front end of the swinging member 27, when the connecting rod 212 drives the left end of the swinging member 27 to swing slightly, the right end of the swinging member 27 can drive the toothed disc 28 to increase the swinging force, so that the correction cylinder 23 can have enough power to correct the printed cloth 121.

[0042] When the right end of the swinging member 27 drives the toothed disc 28 to swing counterclockwise, the toothed disc 28 can drive the meshing wheel on the rear side of the gear set 25 to rotate clockwise, and the meshing wheel on the rear side of the gear set 25 can drive the meshing wheel on the front side of the gear set 25 to rotate counterclockwise when the meshing wheel on the rear side of the gear set 25 rotates clockwise, and the meshing wheel on the front side of the gear set 25 rotates clockwise, which drives the rack 24 to move backward, and the rack 24 can drive the second sliding frame 26 to slide in the direction groove of the support frame 262 when it moves backward, and the second sliding frame 26 can drive the correction cylinder 23 to slide at the same time when it slides backward, so that the correction cylinder 23 can drive the printing cloth 121 to move backward for reset movement, so that the printing cloth 121 can return to the correct position for printing.

[0043] However, when the printing cloth 121 is being printed, since the printing cloth 121 is very sensitive to changes in the temperature and humidity of the environment, when the temperature and humidity of the printing environment are abnormal, it is easy to cause the printing cloth 121 to curl and wrinkle, and the wrinkles will destroy the flatness and smoothness of the printing cloth 121, affecting the appearance and integrity of the printed product. Based on this, the present application smoothes the surface of the printing cloth 121 through a smoothing mechanism.

[0044] refer to Figure 5 and Figure 6 As shown, the smoothing mechanism includes a mounting plate 3 fixedly connected to the upper surface of the left side of the printing machine body 1, a slide groove is provided in the middle of the mounting plate 3, a bidirectional screw rod 31 is provided inside the slide groove, both sides of the bidirectional screw rod 31 are rotatably connected to the mounting plate 3, and the other end also passes through the mounting plate 3, the outer surface of the bidirectional screw rod 31 is symmetrically threaded with a sliding block 32, and the sliding block 32 is in the slide groove, and when the staff rotates the front end of the bidirectional screw rod 31, it can drive the sliding block 32 to move toward or away from each other.

[0045] The upper surface of the sliding block 32 is fixedly connected with a centering wheel 33, and the sliding block 32 is used to drive the centering wheel 33 to move. A slot is also provided in the middle of the centering wheel 33. The slots in the centering wheels 33 on both sides can limit the printed cloth 121 between the two centering wheels.

[0046] The outer surface of the bottom of the center wheel 33 is fixedly connected with a sliding member 34, and the side of the top of the sliding member 34 close to each other is fixedly connected with a servo motor 35, and the output shaft at the bottom of the servo motor 35 is fixedly connected with a flattening member 36. The servo motor 35 on the rear side rotates clockwise, so that the output shaft at the bottom can only drive the flattening member 36 on the rear side to swing back and forth between 0° and 180°, while the servo motor 35 on the front side rotates counterclockwise, and the output shaft at the bottom can only drive the flattening member 36 on the front side to swing back and forth between 0° and -180°.

[0047] As the bottoms of the two flattening pieces 36 swing on the upper surface of the printing cloth 121, the wrinkles on the upper surface of the printing cloth 121 can be smoothed, so that the printing cylinder 11 can fit more closely on the printing cloth 121, which can not only make the printed content clearly visible, but also avoid problems such as blurring and ghosting during the printing process, thereby greatly improving the printing quality, and the two flattening pieces 36 will not collide with each other when swinging against each other.

[0048] The principle of smoothing the printed cloth 121 by the smoothing mechanism in this embodiment is as follows: the staff can rotate the front end of the bidirectional screw rod 31 according to the specific width of the printed cloth 121, and when the bidirectional screw rod 31 rotates, it can drive the center wheel 33 to slide toward the side close to each other through the sliding block 32, so that the outer surface of the center wheel 33 can fit the front and back sides of the printed cloth 121, thereby further limiting the printing cloth 121.

[0049] As the centering wheel 33 moves toward the side that is close to each other, the servo motor 35 is driven to move simultaneously through the sliding member 34, and when the servo motor 35 moves toward the side that is close to each other, it can drive the paving member 36 to move simultaneously, so that the bottom of the paving member 36 can be attached to the upper surface of the printing cloth 121. At this time, the staff can start the servo motor 35 to make the rear servo motor 35 rotate clockwise, so that the output shaft at the bottom drives the rear paving member 36 to swing back and forth between 0° and 180°, while the front servo motor 35 rotates counterclockwise, and the bottom The output shaft of the part drives the flattening piece 36 on the front side to swing back and forth between 0° and -180°. It should be noted that the flattening piece will not separate from the printing cloth 121, and the two will not interfere with each other. As the two flattening pieces 36 swing against each other on the upper surface of the printing cloth 121, wrinkles and unevenness on the surface of the printing cloth 121 can be removed, so that the printing cylinder 11 can fit more closely on the printing cloth 121, which can not only make the printed content clearly visible, but also avoid blurring, ghosting and other problems that occur during the printing process, thereby greatly improving the printing quality.

[0050] When the printing of the printed cloth 121 is completed and a new printed cloth 121 needs to be printed, the used correcting mechanism causes the position of the printed cloth 121 to shift when it is installed, thereby affecting the consistency of the printing accuracy of the printed cloth 121. Therefore, a centering reset mechanism can be used to specifically reset the correcting mechanism.

[0051] refer to Figure 3 to Figure 4 As shown, the sides of the trigger member 211 that are away from each other are fixedly connected to the first extrusion member 4. When the trigger member 211 slides, it drives the first extrusion member 4 to move. The sides of the first extrusion member 4 that are away from each other are in a stepped inclined shape. The tops of both sides of the gantry 2001 are provided with through grooves. A third sliding frame 41 slides in the through grooves of the gantry 2001. The two sides of the top of the third sliding frame 41 are squeezed and matched with the stepped inclined surfaces of the first extrusion member 4 that are away from each other.

[0052] A square groove is provided at the center of the upper surface of the gantry 2001, and a wedge block 42 is fixedly connected to the bottom of the first sliding frame 2. The wedge block 42 passes through and is slidably connected to the square groove. The wedge block 42 can slide in the direction groove, and the wedge block 42 is used to drive the first sliding frame 2 to reset and move.

[0053] The upper surface of the bottom of the third sliding frame 41 is symmetrically fixedly connected with the second extrusion piece 43, and the third sliding frame 41 is used to drive the second extrusion piece 43 to move simultaneously. The upper surfaces of the second extrusion piece 43 are squeezed and matched with the inclined surface of the bottom of the wedge block 42. The second extrusion piece 43 is used to drive the wedge block 42 to reset and move. The upper surface of the bottom of the third sliding frame 41 is symmetrically fixedly connected with the spring 44, and the top end of the spring 44 is fixedly connected to the upper surface of the gantry 2001 with a through groove.

[0054] It should be noted that when the spring 44 is in a natural state, the bottom of the third sliding frame 41 overlaps with the bottom of the through slot formed through the gantry 2001 .

[0055] When in use, first, the third sliding frame 41 is overlapped at the bottom of the through slot of the gantry 2001, the second extrusion piece 43 descends along with the third sliding frame 41, and the upper end of the third sliding frame 41 is separated from the side away from the first extrusion piece 4 in a stepped inclined shape.

[0056] When the deviation correction mechanism needs to be used, the rotating rod 21 is rotated to make the trigger member 211 move in opposite directions, that is, the two trigger members 211 move away from each other, and because the side of the first extrusion member 4 that moves away from each other is in a stepped inclination, the third sliding frame 41 can be driven to rise, and through the extrusion spring 44, as the rotation continues, the third sliding frame 41 continues to rise, so that the two second extrusion members 43 squeeze the wedge block 42, so that the first sliding frame 2 moves to the center state at the same time, and the trigger member 211 is at the end of the screw direction of the screw rod 22.

[0057] When used next time, by rotating the rotating rod 21, the trigger member 211 runs in the opposite direction, that is, the two trigger members 211 approach each other. At this time, the upper end of the third sliding frame 41 is away from the first extrusion member 4, and due to the return force of the spring, the third sliding frame 41 is at the bottom of the through groove opened in the gantry 2001 and overlaps.

[0058] It should be noted that when the printed cloth 121 deviates, the first extruding member 4 will not interfere with the upper end of the third sliding frame 41 .

[0059] Although the present disclosure has been shown and described with reference to specific exemplary embodiments of the present disclosure, it should be understood by those skilled in the art that various changes in form and details may be made to the present disclosure without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above-mentioned embodiments, but should be determined not only by the appended claims, but also by the equivalents of the appended claims.

Claims

1. A printing device capable of automatically correcting deviation, comprising a printing body (1), a printing cylinder (11) being slidably connected to the upper surface of the printing body (1), and a conveying device being arranged between the printing bodies (1), characterized in that: A deviation correction mechanism is provided on the upper surface of one side of the printing machine body; The deviation correction mechanism comprises a gantry (2001) fixedly connected to the upper surface of the left side of the printing machine body (1); the upper end of the gantry (2001) is slidably connected to a first sliding frame (2); the first sliding frame (2) is located in sliding grooves at both ends of the gantry (2001); the upper surface of the first sliding frame (2) is rotatably connected to a rotating rod (21); the middle of the rotating rod (21) is fixedly connected to the bottom of the first sliding frame (2) via a fixed block; both ends of the rotating rod (21) are connected to screw rods (22). , and the rotation direction of the screw rod (22) is in an opposite state, the outer surface of the screw rod (22) is threadedly connected with a trigger member (211), and the bottom of the trigger member (211) is slidably connected to the first sliding frame (2) by means of a sliding groove and a sliding block; a second sliding frame (26) is also provided on one side of the first sliding frame (2), and a transmission component is provided between the first sliding frame (2) and the second sliding frame (26), and the transmission component is used to make the first sliding frame (2) and the second sliding frame (26) move in opposite directions.

2. A printing device capable of automatically correcting deviation according to claim 1, characterized in that: A rack (24) is fixedly connected to one side of the upper end of the second sliding frame (26); a deflection correction cylinder (23) is rotatably connected to the upper surface of the second sliding frame (26); the deflection correction cylinder (23) is used to assist the transmission of the printed cloth (121); the second sliding frame (26) is slidably connected to a support frame (262) fixedly connected to the printing machine body (1).

3. A printing device capable of automatically correcting deviation according to claim 2, characterized in that: The transmission assembly comprises a connecting rod (212) arranged at a middle position of the rotating rod (21) and extending therethrough, the right end of the connecting rod (212) being connected to a swinging member (27), the right end of the front side of the swinging member (27) being connected to a limiting rod (271), the limiting rod (271) being rotatably connected to the upper end of the swinging member (27), and the bottom of the limiting rod (271) being fixedly connected to the upper surface of the left side of the printing machine body (1); A circular arc toothed disc (28) is also provided on one side of the swinging member (27); a gear set (25) is meshed on the outer surface of the right side of the toothed disc (28); the gear set (25) is composed of two meshing gears; a support frame (262) is rotatably connected between the bottoms of the gear sets (25); the bottom of the support frame (262) is fixedly connected to the upper surface of the left side of the printing machine body (1); the gear set (25) is meshed with the rack (24).

4. The printing device capable of automatically correcting deviation according to claim 2, characterized in that: The upper surface of the support frame (262) is provided with three directional grooves extending in a straight line, and the bottom of the second sliding frame (26) is provided with three mounting blocks, the mounting blocks are slidably connected in the directional grooves, and rollers (261) are provided on both sides of the mounting blocks, the rollers (261) are located at the upper end of the support frame (262) and at both sides of the directional grooves, and the outer surfaces of the rollers (261) are slidably connected to the upper surface of the support frame (262), and the rollers (261) can assist the second sliding frame (26) to slide on the upper surface of the support frame (262).

5. The printing device capable of automatically correcting deviation according to claim 1, characterized in that: It also includes a smoothing mechanism arranged on the upper surface of the middle part of the printing machine body (1), the smoothing mechanism including a mounting plate (3) fixedly connected to the upper surface of the left side of the printing machine body (1), a centering wheel (33) being provided on the mounting plate (3), a sliding member (34) being fixedly connected to the outer surface of the bottom of the centering wheel (33), a servo motor (35) being fixedly connected to the sides of the tops of the sliding members (34) close to each other, an output shaft at the bottom of the servo motor (35) being fixedly connected to a flattening member (36), the rear servo motor (35) rotating clockwise, and the front servo motor (35) rotating counterclockwise.

6. The printing device capable of automatically correcting deviation according to claim 5, characterized in that: A slide groove is provided in the middle of the mounting plate (3), and a bidirectional screw rod (31) is provided inside the slide groove. Both sides of the bidirectional screw rod (31) are rotatably connected to the mounting plate (3), and the other end also penetrates the mounting plate (3). The outer surface of the bidirectional screw rod (31) is symmetrically threadedly connected to a sliding block (32). The sliding block (32) is located in the slide groove. The upper surface of the sliding block (32) is fixedly connected to a centering wheel (33), and a slot is also provided in the middle of the centering wheel (33).

7. The printing device capable of automatically correcting deviation according to claim 3, characterized in that: The invention also comprises a centering reset mechanism arranged on the side of the trigger member (211) away from each other, the centering reset mechanism comprising: a first extrusion member (4) fixedly connected to the side of the trigger member (211) away from each other, the side of the first extrusion member (4) away from each other being in a stepped inclined shape, through slots being provided at the tops of both sides of the gantry (2001), a third sliding frame (41) sliding in the through slots of the gantry (2001), a square slot being provided at the center of the upper surface of the gantry (2001), a wedge block (42) being fixedly connected to the bottom of the first sliding frame (2), the wedge block (42) passing through and being slidably connected to the square slot; a second extrusion member (43) being symmetrically fixedly connected to the upper surface of the bottom of the third sliding frame (41), a spring (44) being symmetrically fixedly connected to the upper surface of the bottom of the third sliding frame (41), the top of the spring (44) being fixedly connected to the upper surface of the gantry (2001) through which the through slots are provided.

8. The printing device capable of automatically correcting deviation according to claim 7, characterized in that: The two sides of the top of the third sliding frame (41) are pressed and matched with the stepped inclined surfaces of the first extrusion member (4) that are away from each other; and the upper surfaces of the second extrusion member (43) are pressed and matched with the inclined surfaces at the bottom of the wedge block (42).

9. The printing device capable of automatically correcting deviation according to claim 2, characterized in that: The conveying device comprises a feeding roller (12), a winding roller (13) and a transmission roller (14); the feeding roller (12) is rotatably connected to the left side of the printing machine body (1); the winding roller (13) is rotatably connected to the right side of the printing machine body (1); one end of the winding roller (13) is fixedly connected to a driving motor; a printing cloth (121) is wound around the outer surface of the feeding roller (12); one end of the printing cloth (121) passes through the inner side of the printing machine body (1) and is wound around the outer surface of the winding roller (13); the upper surface of the inner side of the printing machine body (1) is symmetrically rotatably connected to the transmission roller (14); and the printing cloth (121) sequentially passes from the feeding roller (12), bypasses the deviation correction cylinder (23), bypasses the transmission roller (14), passes between the two printing cylinders (11), and is finally wound around the outer surface of the winding roller (13).

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