Positioning and guiding printing equipment self-adaptive to paper characteristics

Abstract

The invention relates to the technical field of printing, and discloses a paper characteristic self-adaptive positioning guide printing device which comprises a shell, an adjusting column is slidably arranged on the inner wall of the shell, a limiting groove is formed in the inner wall of the shell, the outer wall of the adjusting column is slidably connected to the interior of the limiting groove, and a first adjusting rod is rotatably arranged on the outer wall of the adjusting column; the inner walls of the two sets of first adjusting rods are slidably connected with sliding block bodies, the inner walls of the sliding block bodies are rotatably connected with first connecting rods, an adjusting assembly is arranged on the outer wall of the shell, a conveying table is arranged on the front side of the shell, an adjusting frame is arranged on the upper side of the conveying table, and a feeding assembly is arranged on the outer wall of the adjusting frame. Linkage adjustment of the overall height and the middle distance of the conveying rollers is achieved through a multi-stage transmission adjusting structure composed of an electric push rod, a lifting rod, a connecting rod and other assemblies, and meanwhile the effect that thin paper is effectively prevented from being damaged and thick paper is effectively prevented from slipping is achieved by combining a dynamic fine adjustment mechanism of a spring and a cushion block.

Description

Technical Field

[0001] The present invention relates to the field of printing technology, in particular to a positioning and guiding printing device capable of self-adapting to paper characteristics. Background Art

[0002] In the modern printing industry, as printing services diversify, paper types, thicknesses, textures, and other characteristics are becoming increasingly diverse, and customer demands for printing quality and efficiency are constantly increasing. This requires printing equipment to have excellent paper adaptability and precise adjustment to meet the printing needs of different papers, while also achieving precise positioning and guidance of the paper to ensure the accuracy and consistency of the printed pattern.

[0003] However, traditional printing equipment has many limitations when dealing with different paper characteristics. On the one hand, in terms of paper thickness adjustment, traditional equipment often uses a single mechanical adjustment structure, which makes it difficult to quickly and accurately adapt to paper of different thicknesses. For thin paper, excessive pressure can easily cause paper damage; for thick paper, insufficient pressure can cause slippage, affecting the continuity and stability of printing. On the other hand, in the paper positioning link, most traditional equipment relies on manual calibration of position and angle, which is not only inefficient, but also prone to human errors, making it difficult to ensure high-precision printing requirements. In addition, traditional printing equipment has a complex structure and many parts, resulting in high equipment costs, and is difficult to maintain and overhaul, resulting in long downtimes, which seriously affects production progress. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a positioning and guiding printing device that is adaptive to paper characteristics. It solves the problem that existing printing equipment can only adjust the overall height or the middle distance separately when adjusting the conveyor roller, and it is difficult to achieve linkage adjustment of the two. In the actual printing process, paper of different thicknesses requires not only adjustment of the conveyor roller height, but also synchronous change of the middle distance to match the pressure requirements. Since existing equipment cannot be adjusted in a targeted manner, it is difficult to achieve the corresponding pressure adaptation effect, which affects the printing quality.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a positioning and guiding printing device that adapts to the characteristics of paper, including a shell, an inner wall of the shell is slidably provided with an adjustment column, the inner wall of the shell is provided with a limiting groove, the outer wall of the adjustment column is slidably connected to the inside of the limiting groove, the outer wall of the adjustment column is rotatably provided with a first adjustment rod, the inner walls of two groups of the first adjustment rods are slidably connected to a slider body, the inner wall of the slider body is rotatably connected to a first connecting rod, the outer wall of the first connecting rod is rotatably connected to an adjustment plate, and a double-headed motor is fixedly provided on the inner side of the shell. The output ends of the double-headed motors are fixedly connected to the first screw, the outer wall of the first screw is threadedly connected to the inner wall of the adjusting plate, the outer wall of the first adjusting rod is rotatably connected to the second connecting rod, the outer wall of the second connecting rod is rotatably connected to the limiting bin, the inner wall of the limiting bin is slidably connected to a pad, the inner top wall of the limiting bin is fixedly connected to a spring, the bottom end of the spring is fixedly connected to the upper surface of the pad, the outer wall of the outer shell is provided with an adjusting assembly, the front side of the outer shell is provided with a conveying platform, the upper side of the conveying platform is provided with a frame assembly, and the outer wall of the frame assembly is provided with a feeding assembly.

[0006] Preferably, the adjustment assembly includes a connecting shell, the inner bottom wall of the connecting shell is fixedly connected to an electric push rod, the output end of the electric push rod is fixedly connected to a first limit block, the outer wall of the first limit block is slidably connected to the inner wall of the connecting shell, and the outer wall of the limit bin is provided with a conveying roller.

[0007] Preferably, the inner wall of the first limit block is rotatably connected to a lifting rod, the outer wall of the lifting rod is rotatably connected to the limit rod, and the outer wall of the limit rod is rotatably connected to the inner wall of the connecting shell.

[0008] Preferably, the outer wall of the lifting rod is rotatably connected to the third connecting rod, the outer wall of the third connecting rod is rotatably connected to the connecting plate, the lower surface of the connecting plate is fixedly connected to the limiting column, and the outer wall of the limiting column is slidably connected to the inner wall of the connecting shell.

[0009] Preferably, the outer wall of the limiting column is slidably connected to a second limiting block, and the outer walls of the second limiting block are fixedly connected to both sides of the connecting shell.

[0010] Preferably, the frame assembly includes a second adjusting rod, which is arranged on the upper side of the conveying platform. The outer walls on both sides of the second adjusting rod are fixedly connected with electric sliders, and the electric sliders are slidably arranged on the outer walls of the third adjusting rod. The third adjusting rod is arranged on both sides of the conveying platform.

[0011] Preferably, the loading assembly includes an adjustment seat, the outer wall of the adjustment seat is installed on the outer wall of the second adjustment rod using an electric slider, the outer wall of the adjustment seat is fixedly connected to a motor, and two groups of motors are provided and distributed on the left and right sides of the adjustment seat.

[0012] Preferably, the output ends of the two groups of motors are fixedly connected with a second screw rod, the outer wall of the second screw rod is threadedly connected with an adjustment frame, and the outer wall of the adjustment frame is rotatably provided with a fine-tuning rod.

[0013] Preferably, the outer wall of the fine-tuning rod is fixedly connected to a transverse limiting shaft, both ends of the transverse limiting shaft are fixedly connected to the inner side of the adjustment seat, the outer wall of the adjustment frame is slidably connected to the outer wall of the transverse limiting shaft, and the inner wall of the adjustment seat is fixedly connected to a longitudinal limiting shaft.

[0014] Preferably, a connecting block is rotatably provided on the lower surface of the adjustment frame, the inner wall of the connecting block is slidably provided on the outer wall of the longitudinal limiting shaft, and multiple groups of suction cups are provided on the inner side of the adjustment frame, and the connecting block is used to adsorb paper.

[0015] Working principle: The first limit block is pushed to slide in the connecting shell by the electric push rod, and the movement of the first limit block drives the lifting rod to rotate. Under the limiting action of the limit rod, the lifting rod drives the connecting plate to move up and down along the limit column through the third connecting rod, thereby making the adjusting column fixedly connected to the connecting plate slide in the limiting groove of the shell to realize the adjustment of the overall height of the conveying roller, so that it can preliminarily adapt to the thickness of the paper during use. At the same time, the double-headed motor drives the first screw to rotate, and the first screw drives the adjusting plate to move left and right. The adjusting plate adjusts the opening and closing angle of the first adjusting rod through the first connecting rod and the slider body, changes the spacing in the middle of the conveying roller, and realizes the effect of pressure regulation. It automatically floats up and down according to the actual thickness of the paper through the spring and the pad, and dynamically fine-tunes the downward pressure angle of the conveying roller to prevent thin paper from being damaged or thick paper from slipping, thereby avoiding damage and breakage of paper during the conveying and printing process of thin paper. Before the paper enters the conveyor for printing, the electric slider body of the adjustment seat moves on the second adjustment rod to the top of the paper, and the third adjustment rod drives the second adjustment rod to descend, so that the suction cup on the adjustment seat absorbs the paper. Then, the adjustment seat rises and moves above the conveyor table, and the paper is placed on the conveyor table. The positioning sensor of the conveyor table detects the position and angle deviation of the paper. If there is a deviation, the two sets of motors rotate in the same direction or opposite directions according to the deviation, driving the second screw to rotate. The second screw drives the adjustment frame to move forward and backward or rotate under the limit of the horizontal limit axis and the longitudinal limit axis, thereby achieving the effect of adjusting the angle of the paper during use. During use, the paper can be adjusted to multiple angles according to the recognition of the sensor. During use, the horizontal limit axis can be used to move the adjustment frame forward and backward. When moving in opposite directions, the two sides move in different directions respectively, and the fine-tuning rod and the connecting block can adjust the overall angle under the limit of the longitudinal limit axis and the horizontal limit axis. After the adjustment is completed, the suction cup is released, thereby completing the effect of positioning the paper and auxiliary guiding, and realizing accurate calibration of the paper position and angle; Finally, the paper is stably transported to the printing area by the conveyor roller under adjusted pressure, completing the entire printing process. It can quickly respond to different paper characteristics without stopping the machine, significantly improving printing efficiency and quality. At the same time, it has the advantages of simple structure, low cost, and easy maintenance.

[0016] The present invention provides a positioning guide printing device that is self-adaptive to paper characteristics. It has the following beneficial effects: 1. The present invention realizes the linkage adjustment of the overall height and center spacing of the conveyor rollers through a multi-stage transmission adjustment structure composed of components such as electric push rods, lifting rods, and connecting rods. At the same time, combined with the dynamic fine-tuning mechanism of springs and pads, it can accurately adapt to different paper thicknesses and effectively avoid the damage of thin paper and the slipping of thick paper.

[0017] 2. The present invention uses a positioning sensor to detect the position and angle deviation of the paper in real time, and combines the adjustment frame composed of a motor, a screw and a limit shaft to automatically detect and calibrate the paper feeding. It can quickly complete the paper positioning and guiding without manual intervention, greatly improving the feeding efficiency.

[0018] 3. The present invention combines the feeding component with the sensor during use, and can adjust the position according to the actual detection of existing deviations and the different papers, thereby achieving the effect of precise positioning, and further improving the feeding stability of the paper during printing during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of the present invention; Figure 2 It is a partial schematic diagram of the left side of the housing of the present invention; Figure 3 Schematic diagram of the internal structure of the housing of the present invention; Figure 4 It is a partial schematic diagram of the cushion block of the present invention; Figure 5 is a partial schematic diagram of the third connecting rod of the present invention; Figure 6 It is a partial schematic diagram of the adjustment frame of the present invention; Figure 7 It is a partial schematic diagram of the transverse limiting shaft of the present invention.

[0020] Among them, 1. outer shell; 2. adjusting column; 3. limiting groove; 4. first adjusting rod; 5. slider body; 6. first connecting rod; 7. adjusting plate; 8. double-headed motor; 9. first screw; 10. second connecting rod; 11. limiting bin; 12. spring; 13. pad; 14. connecting shell; 15. electric push rod; 16. first limiting block; 17. lifting rod; 18. limiting rod; 19. third connecting rod; 20. connecting plate; 21. limiting column; 22. second limiting block; 23. second adjusting rod; 24. third adjusting rod; 25. conveying platform; 26. adjusting seat; 27. motor; 28. second screw; 29. adjusting frame; 30. horizontal limiting axis; 31. longitudinal limiting axis; 32. fine-tuning rod; 33. connecting block; 34. suction cup; 35. conveying roller. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Please see the attached Figure 1 -Attached Figure 4The embodiment of the present invention provides a positioning guide printing device that adapts to paper characteristics, including a shell 1, an inner wall of the shell 1 is slidably provided with an adjustment column 2, the inner wall of the shell 1 is provided with a limit groove 3, the outer wall of the adjustment column 2 is slidably connected to the inner wall of the limit groove 3, the outer wall of the adjustment column 2 is rotatably provided with a first adjustment rod 4, the inner wall of two groups of the first adjustment rod 4 is slidably connected to a slider body 5, the inner wall of the slider body 5 is rotatably connected to a first connecting rod 6, the outer wall of the first connecting rod 6 is rotatably connected to an adjustment plate 7, the inner side of the shell 1 is fixedly provided with an adjustment plate 7, and the output of the adjustment plate 7 is fixedly provided. The output ends are fixedly connected with the first screw 9, the outer wall of the first screw 9 is threadedly connected to the inner wall of the adjusting plate 7, the outer wall of the first adjusting rod 4 is rotatably connected to the second connecting rod 10, the outer wall of the second connecting rod 10 is rotatably connected to the limiting bin 11, the inner wall of the limiting bin 11 is slidably connected with a pad 13, the inner top wall of the limiting bin 11 is fixedly connected with a spring 12, the bottom end of the spring 12 is fixedly connected to the upper surface of the pad 13, the outer wall of the outer shell 1 is provided with an adjusting component, the front side of the outer shell 1 is provided with a conveying platform 25, the upper side of the conveying platform 25 is provided with a frame component, and the outer wall of the frame component is provided with a feeding component.

[0023] Specifically, during use, the height of the adjusting column 2 can be adjusted through the adjustment component. The adjusting column 2 can quickly adjust the height to suit different papers and cardboards for printing production. The limiting slot 3 can limit the adjusting column 2 to avoid the conveying roller 35 from being offset during movement. During use, the conveying roller 35 rolls and conveys the paper through the printing press, and the spring 12 and the pad 13 can adapt and adjust the downward pressure angle of the conveying roller 35. When the upper and lower sides of the pad 13 are fitted together, the gap between the conveying roller 35 can be narrowed. During use, it can be adjusted for thin paper, and the double-headed motor 8 drives the first screw When 9 is rotated, the first screw 9 drives the adjusting plate 7 to move left and right, thereby driving the first connecting rod 6 and the slider body 5 to slide on the inner wall of the first adjusting rod 4. During use, the movement of the adjusting plate 7 can adjust the pressure borne by the middle part, so that the conveying roller 35 can avoid causing high pressure on thin paper during use, thereby preventing the problem of rupture. During use, the adjustment of the adjusting plate 7 also has the effect of guiding and conveying a variety of cardboards according to different thicknesses during use, thereby avoiding the inability to convey cardboard and paper of different thicknesses due to insufficient pressure during use, causing the conveying roller 35 to slip, and the effect of adapting the thickness adjustment to printing production can be completed without stopping the machine during use.

[0024] Please see the attached Figure 5The adjustment assembly includes a connecting shell 14, the inner bottom wall of which is fixedly connected to an electric push rod 15, the output end of which is fixedly connected to a first limit block 16, the outer wall of which is slidably connected to the inner wall of the connecting shell 14, and the outer wall of the limit bin 11 is provided with a conveying roller 35. The inner wall of the first limit block 16 is rotatably connected to a lifting rod 17, the outer wall of which is rotatably connected to a limit rod 18, the outer wall of which is rotatably connected to the inner wall of the connecting shell 14. The outer wall of the lifting rod 17 is rotatably connected to a third connecting rod 19, the outer wall of which is rotatably connected to a connecting plate 20, the lower surface of the connecting plate 20 is fixedly connected to a limit column 21, the outer wall of which is slidably connected to the inner wall of the connecting shell 14. The outer wall of the limit column 21 is slidably connected to a second limit block 22, the outer wall of which is fixedly connected to both sides of the connecting shell 14.

[0025] Specifically, during use, the height of the adjustment column 2 can be adjusted by starting the electric push rod 15 to drive the first limit block 16, so that it can be quickly adapted to papers of different thicknesses during use. During use, when the electric push rod 15 drives the first limit block 16 to rise, the first limit block 16 slides inside the connecting shell 14 to limit the connecting shell 14, which can improve the accuracy of the connecting shell 14 during movement and prevent shaking during use. During use, the first limit block 16 drives the lifting rod 17 to rotate during the rising process, and When the lifting rod 17 rotates, it is limited by the limit rod 18. Therefore, during use, the lifting rod 17 drives the third connecting rod 19 to drive the connecting plate 20 to rise under the limit of the limit rod 18. During the rising process, the connecting plate 20 is limited by the limit column 21 and the second limit block 22, so that it can be adjusted up and down during use. When the adjusting column 2 is driven up and down by the connecting plate 20 during use, the thickness of the paper is adjusted to adapt to the printing. During use, the conveying roller 35 is further prevented from slipping during use, or the paper is damaged due to excessive pressure.

[0026] Please see the attached Figure 1 The frame assembly includes a second adjusting rod 23, which is arranged on the upper side of the conveying platform 25. The outer walls on both sides of the second adjusting rod 23 are fixedly connected with electric sliders, which are slidably arranged on the outer wall of the third adjusting rod 24. The third adjusting rod 24 is arranged on both sides of the conveying platform 25.

[0027] Specifically, the adjustment seat 26 can be moved left and right by the second adjustment rod 23 during use, and paper can be taken to the right during use. Then, the second adjustment rod 23 is driven down by the third adjustment rod 24, thereby driving the adjustment seat 26 to descend to take paper. Then, after rising, the second adjustment rod 23 is reset. During use, a positioning sensor can be installed on the conveying platform 25 to position the paper when it is placed, and the position is identified by the sensor before the paper is placed. During use, the position of the placed paper can be adjusted by the adjustment seat 26, thereby further improving the accuracy of paper placement during use.

[0028] Please see the attached Figure 6 -Attached Figure 7 The loading assembly includes an adjustment seat 26, the outer wall of which is mounted on the outer wall of the second adjustment rod 23 using an electric slider. A motor 27 is fixedly connected to the outer wall of the adjustment seat 26. Two motors 27 are provided, one on each side of the adjustment seat 26. The output ends of the two motors 27 are fixedly connected to a second screw 28. An adjustment frame 29 is threadedly connected to the outer wall of the second screw 28. A fine-tuning rod 32 is rotatably mounted on the outer wall of the adjustment frame 29. A transverse limiting shaft 30 is fixedly connected to the outer wall of the fine-tuning rod 32. Both ends of the transverse limiting shaft 30 are fixedly connected to the inner side of the adjustment seat 26. The outer wall of the adjustment frame 29 is slidably connected to the outer wall of the transverse limiting shaft 30. A longitudinal limiting shaft 31 is fixedly connected to the inner wall of the adjustment seat 26. A connecting block 33 is rotatably mounted on the lower surface of the adjustment frame 29. The inner wall of the connecting block 33 slides against the outer wall of the longitudinal limiting shaft 31. Multiple suction cups 34 are mounted on the inner side of the adjustment frame 29. The connecting block 33 is used to absorb paper.

[0029] Specifically, the adjustment seat 26 is used to connect, move, and adjust during use. First, it moves above the paper, then descends to absorb the paper through the suction cup 34, moves to the conveyor table 25, and then performs preliminary positioning through the sensor. When it is detected that it is excessively biased forward or backward, the two sets of motors 27 are simultaneously started to drive the second screw 28 to rotate. During use, when the second screws 28 rotate to the same side, they drive the adjustment frame 29 to achieve an offset movement under the limit of the lateral limit shaft 30, and then the paper is placed; When the angle is detected to be offset, the two sets of motors 27 are started and rotated in opposite directions. The adjusting frame 29 is rotated through the lower connecting block 33 under the limit of the fine-tuning rod 32 and moves under the limit of the longitudinal limit shaft 31, thereby adjusting the angle of the paper during use. During use, the paper can be adjusted to multiple angles according to the recognition of the sensor. During use, the transverse limit shaft 30 can move the adjusting frame 29 back and forth, and when moving in opposite directions, the two sides move in different directions respectively, and the fine-tuning rod 32 and the connecting block 33 can adjust the overall angle under the limit of the longitudinal limit shaft 31 and the transverse limit shaft 30. After the adjustment is completed, it is released by the suction cup 34, thereby completing the positioning of the paper and auxiliary guidance. During use, the connection between the adjusting seat 26 and the transverse limit shaft 30 is connected by the fine-tuning rod 32. Therefore, there will be no motion interference that causes the rotation to be unable to occur during use. Compared with the traditional robotic arm for positioning and placement, the device has the advantages of being simpler in use, convenient structure for replacement, convenient maintenance in the later stage, and low cost.

[0030] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A positioning guide printing device that is self-adaptive to paper characteristics, comprising a housing (1), characterized in that: The inner wall of the housing (1) is provided with an adjusting column (2) for sliding movement, the inner wall of the housing (1) is provided with a limiting groove (3), the outer wall of the adjusting column (2) is slidably connected to the inside of the limiting groove (3), the outer wall of the adjusting column (2) is rotatably provided with a first adjusting rod (4), the inner walls of two groups of the first adjusting rods (4) are slidably connected to a slider body (5), the inner wall of the slider body (5) is rotatably connected to a first connecting rod (6), the outer wall of the first connecting rod (6) is rotatably connected to an adjusting plate (7), a double-headed motor (8) is fixedly provided on the inner side of the housing (1), the output ends of the double-headed motor (8) are both fixedly connected to a first screw (9), the first screw The outer wall of (9) is threadedly connected to the inner wall of the adjustment plate (7), the outer wall of the first adjustment rod (4) is rotatably connected to the second connecting rod (10), the outer wall of the second connecting rod (10) is rotatably connected to the limit bin (11), the inner wall of the limit bin (11) is slidably connected to the cushion block (13), the inner top wall of the limit bin (11) is fixedly connected to the spring (12), the bottom end of the spring (12) is fixedly connected to the upper surface of the cushion block (13), the outer wall of the shell (1) is provided with an adjustment component, the front side of the shell (1) is provided with a conveying platform (25), the upper side of the conveying platform (25) is provided with a frame component, and the outer wall of the frame component is provided with a feeding component.

2. The positioning guide printing device according to claim 1, characterized in that: The adjustment assembly comprises a connecting shell (14), an inner bottom wall of the connecting shell (14) is fixedly connected to an electric push rod (15), an output end of the electric push rod (15) is fixedly connected to a first limit block (16), an outer wall of the first limit block (16) is slidably connected to the inner wall of the connecting shell (14), and a conveying roller (35) is provided on the outer wall of the limit bin (11).

3. The positioning guide printing device according to claim 2, characterized in that: The inner wall of the first limit block (16) is rotatably connected to a lifting rod (17), the outer wall of the lifting rod (17) is rotatably connected to a limit rod (18), and the outer wall of the limit rod (18) is rotatably connected to the inner wall of the connecting shell (14).

4. The positioning guide printing device according to claim 3, characterized in that: The outer wall of the lifting rod (17) is rotatably connected to a third connecting rod (19), and the outer wall of the third connecting rod (19) is rotatably connected to a connecting plate (20). The lower surface of the connecting plate (20) is fixedly connected to a limiting column (21), and the outer wall of the limiting column (21) is slidably connected to the inner wall of the connecting shell (14).

5. The positioning guide printing device according to claim 4, characterized in that: The outer wall of the limiting column (21) is slidably connected to a second limiting block (22), and the outer wall of the second limiting block (22) is fixedly connected to both sides of the connecting shell (14).

6. The positioning guide printing device according to claim 1, characterized in that: The frame assembly includes a second adjustment rod (23), the second adjustment rod (23) is arranged on the upper side of the conveying platform (25), and the outer walls on both sides of the second adjustment rod (23) are fixedly connected with electric sliders, and the electric sliders are slidably arranged on the outer wall of the third adjustment rod (24), and the third adjustment rod (24) is arranged on both sides of the conveying platform (25).

7. The positioning guide printing device according to claim 1, characterized in that: The loading assembly includes an adjustment seat (26), the outer wall of the adjustment seat (26) is installed on the outer wall of the second adjustment rod (23) using an electric slider, the outer wall of the adjustment seat (26) is fixedly connected to a motor (27), and two groups of motors (27) are provided and distributed on the left and right sides of the adjustment seat (26).

8. The positioning guide printing device according to claim 7, characterized in that: The output ends of the two groups of motors (27) are fixedly connected to a second screw (28), the outer wall of the second screw (28) is threadedly connected to an adjustment frame (29), and the outer wall of the adjustment frame (29) is rotatably provided with a fine-tuning rod (32).

9. The positioning guide printing device according to claim 8, characterized in that: The outer wall of the fine-tuning rod (32) is fixedly connected to a transverse limiting shaft (30), both ends of the transverse limiting shaft (30) are fixedly connected to the inner side of the adjustment seat (26), the outer wall of the adjustment frame (29) is slidably connected to the outer wall of the transverse limiting shaft (30), and the inner wall of the adjustment seat (26) is fixedly connected to a longitudinal limiting shaft (31).

10. The positioning guide printing device capable of self-adapting to paper characteristics according to claim 9, characterized in that: A connecting block (33) is rotatably provided on the lower surface of the adjusting frame (29), and the inner wall of the connecting block (33) is slidably provided on the outer wall of the longitudinal limiting shaft (31). A plurality of groups of suction cups (34) are provided on the inner side of the adjusting frame (29), and the connecting block (33) is used to adsorb paper.

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