High-speed printing equipment for square-bottom valve bag machining

By setting up staggered roller brushes and movable slants in the printing equipment, the cooperation of the driving component and the linkage component is used to solve the problem of solid dust adhesion in the printing equipment, and a smoother printing effect and higher printing quality are achieved.

CN119319723AInactive Publication Date: 2025-01-17ANHUI TIANYUAN PLASTIC PROD CO LTD
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Patent Information

Application Number
CN202411491206.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-24
Publication Date
2025-01-17
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

When existing printing equipment prints square bottom valve pockets, solid dust is prone to adhere to the pocket surface, resulting in bumps in the printing pattern, affecting the printing effect and quality.

Method used

A high-speed printing device including a cleaning mechanism is designed to completely clean the solid dust on the surface of the pocket by providing interlaced roller brushes and movable slants on the printing machine body, and using the driving assembly and linkage assembly to rotate and move the roller brushes back and forth, ensuring that the solid dust on the surface of the pocket is The printed pattern is smooth.

Benefits of technology

It effectively avoids the coverage of solid dust during printing, improves printing effect and equipment quality, improves printing efficiency and stability, and is suitable for large-scale production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of pocket printing, in particular to high-speed printing equipment for square-bottom valve pocket machining, which comprises a printing machine body and an uncoiling frame fixed at one end of the printing machine body, and a material receiving roller group mounted on the printing machine body is arranged on one side of the bottom of the uncoiling frame; a feeding roller set with the vertical height larger than that of the material receiving roller set is installed in the middle of the printing machine body, and a cleaning mechanism used for cleaning dust on the surface of a pocket is arranged between the material receiving roller set and the feeding roller set and comprises limiting shells fixedly arranged on the two sides of the printing machine body. The first roller brush and the second roller brush are arranged between the two limiting shells and distributed at intervals. Solid dust attached to the surface of a pocket can be cleaned more thoroughly, the situation that salient points exist in a printed pattern due to the fact that the solid dust is printed on the surface of the pocket together during printing is avoided, the surface of the pocket is printed more smoothly, the printing effect is effectively enhanced, and the printing quality of printing equipment is improved.
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Description

Technical Field

[0001] The invention relates to the technical field of pocket printing, and in particular to high-speed printing equipment for processing square bottom valve pockets. Background Art

[0002] Square bottom valve bags are small bulk packaging containers. During the processing, the surface of the bags needs to be printed with logos, text or patterns by printing equipment. Existing printing equipment usually transports the bags to the printing unit for printing, but the printing surface of the bags is often attached with solid dust. During the printing process, the solid dust will be printed on the surface of the bags, resulting in convex spots on the printed pattern on the surface of the bags, causing the surface of the bags to be printed unevenly, affecting the printing effect and reducing the printing quality of the printing equipment. Summary of the invention

[0003] In order to overcome the shortcomings of the prior art, the present invention provides a high-speed printing device for processing square bottom valve bags, which solves the problem that the prior art will print solid dust on the surface of the bag, resulting in convex spots in the printed pattern and uneven printing.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A high-speed printing device for processing square bottom valve bags, comprising a printing machine body and an unwinding stand fixedly mounted at one end of the printing machine body for placing bag rolls, a receiving roller group mounted on the printing machine body is arranged on one side of the bottom of the unwinding stand, a feeding roller group whose vertical height is higher than the receiving roller group is arranged in the middle of the printing machine body, a cleaning mechanism for cleaning dust on the surface of the bag is arranged between the receiving roller group and the feeding roller group, the cleaning mechanism comprises a limiting shell fixedly mounted on both sides of the printing machine body, two roller brushes 1 and 2 arranged at intervals between the two limiting shells, and the brush bodies on the roller brush 1 and the roller brush 2 are relatively close to each other. They are staggered, and the vertical height of roller brush one is higher than that of roller brush two, and inclined slide grooves are respectively opened on the two limit shells, and the two ends of roller brush one and roller brush two respectively pass through the two inclined slide grooves and are slidably connected thereto, and one side of the two limit shells is respectively fixed with a limit slide rail, and the inner sides of the two limit slide rails are respectively slidably provided with movable inclined rods, and one side of one of the movable inclined rods is provided with a driving component for synchronously driving roller brush one and roller brush two to rotate, and the inner side of the printing machine body is also provided with a linkage component for simultaneously pushing the two movable inclined rods to move and keeping roller brush one and roller brush two rotating.

[0006] As a further optimization scheme of the present invention, the two ends of the roller brush 1 respectively pass through one end of the two movable inclined rods and are rotatably connected thereto through bearings, and the two ends of the roller brush 2 respectively pass through the other end of the two movable inclined rods and are rotatably connected thereto through bearings.

[0007] As a further optimization scheme of the present invention, the driving assembly includes a servo motor fixedly installed on one side of one of the movable inclined rods, and a rotating inclined tube fixedly set on the output shaft of the servo motor, and a movable horizontal axis is slidably arranged on the inner side of the rotating inclined tube, and the movable horizontal axis can only slide on the inner side of the rotating inclined tube.

[0008] As a further optimization solution of the present invention, a worm is fixedly provided at one end of the movable horizontal axis, and a support frame fixed to one of the movable oblique rods is rotatably provided at the other end of the worm via a bearing.

[0009] As a further optimization scheme of the present invention, a worm wheel fixed to one end of roller brush one is meshed on one side of the worm, and one end of roller brush one and roller brush two are connected with a transmission belt through a pulley transmission.

[0010] As a further optimization scheme of the present invention, the linkage assembly includes limit grooves respectively opened at one end of the two limit slide rails, and movable connecting rods respectively fixedly arranged at one end of the two movable inclined rods, and the movable connecting rods pass through the limit grooves and are slidably connected thereto, and one end of the two movable connecting rods is respectively fixed with a movable frame, and limit racks are respectively fixed on both sides of the interior of the movable frame, and an incomplete gear is meshed between the two limit racks, and one side of the movable frame is provided with a transmission assembly for connecting a driving assembly to maintain the rotation of the limit horizontal axis.

[0011] As a further optimization scheme of the present invention, a limiting horizontal axis is arranged between the two limiting shells, and the two ends of the limiting horizontal axis respectively pass through the two limiting shells and are rotatably connected thereto through bearings, and the two ends of the limiting horizontal axis are respectively fixedly connected to the two incomplete gears.

[0012] As a further optimization scheme of the present invention, the transmission assembly includes a driven gear arranged on one side of the incomplete gear and fixed to the limiting horizontal axis, and a driving gear meshingly arranged on one side of the driven gear, and a transmission shaft rotating with one of the limiting shells through a bearing is fixed at the axis center of the driving gear.

[0013] As a further optimization solution of the present invention, a bevel gear 2 is fixedly provided at one end of the transmission shaft, and a bevel gear 1 fixed to the rotating bevel tube is meshedly provided on one side of the bevel gear 2.

[0014] By means of the above technical solution, the present invention provides a high-speed printing device for processing square bottom valve bags, which has at least the following beneficial effects compared with the prior art:

[0015] 1. The present invention cleans the surface of the pocket to be printed by setting a cleaning mechanism, and cleans the surface of the pocket by roller brush 1 and roller brush 2. Through the cooperation of the linkage component and the driving component, roller brush 1 and roller brush 2 rotate and reciprocate at the same time, which is conducive to cleaning the solid dust attached to the surface of the pocket more thoroughly, avoiding the situation where solid dust is printed on the surface of the pocket during printing, resulting in convex points in the printed pattern, making the pocket surface printed more smoothly, effectively enhancing the printing effect, and improving the printing quality of the printing equipment.

[0016] 2. The present invention drives roller brush 1 and roller brush 2 to rotate simultaneously by setting a driving component. The vertical height of the feed roller group is higher than that of the receiving roller group, so that the pocket is inclined when feeding. At the same time, the vertical height of roller brush 1 is higher than that of roller brush 2, and the brush bodies on roller brush 1 and roller brush 2 are staggered with each other, which helps to clean the solid dust attached to the surface of the pocket more cleanly, while ensuring the stability of pocket feeding, effectively improving the printing quality of the printing machine, and can quickly complete mass production and improve printing efficiency.

[0017] 3. The present invention drives roller brush 1 and roller brush 2 to move back and forth by setting a linkage component. Roller brush 1 and roller brush 2 reciprocate when rotating, which can thoroughly clean the solid dust on the surface of the pocket, thereby improving the stability of roller brush 1 and roller brush 2 when moving for cleaning, and at the same time improving the practicability of the printing equipment for easy use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a front perspective cross-sectional view of the present invention;

[0021] Figure 3 It is a structural schematic diagram of the cleaning mechanism of the present invention;

[0022] Figure 4 It is a partial exploded schematic diagram of the drive assembly of the present invention;

[0023] Figure 5 It is a partial exploded schematic diagram of the linkage assembly of the present invention;

[0024] Figure 6 for Figure 2 Schematic diagram of the enlarged structure of part A.

[0025] In the figure: 1. Printing machine body; 2. Unwinding frame; 3. Receiving roller group; 4. Feeding roller group;

[0026] 5. Cleaning mechanism; 51. Position limiting housing; 52. Roller brush 1; 53. Roller brush 2; 54. Inclined slide; 55. Position limiting slide rail; 56. Movable inclined rod;

[0027] 57, driving assembly; 571, servo motor; 572, rotating inclined tube; 573, movable horizontal axis; 574, worm; 575, supporting frame; 576, worm wheel; 577, transmission belt;

[0028] 58, linkage assembly; 581, limiting groove; 582, movable connecting rod; 583, movable frame; 584, limiting rack; 585, incomplete gear; 586, limiting horizontal axis;

[0029] 587, transmission assembly; 5871, driven gear; 5872, driving gear; 5873, transmission shaft; 5874, bevel gear 2; 5875, bevel gear 1. DETAILED DESCRIPTION

[0030] 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.

[0031] First embodiment

[0032] Square bottom valve bag is a small bulk packaging container. During processing, the valve bag needs to be printed with logos, text or patterns on its surface. Currently, printing equipment is mainly used for printing. Since traditional printing equipment directly feeds the bag into the printing equipment, solid dust will adhere to the surface of the bag, which is easy to cover the dust during printing, resulting in convex spots on the printing surface, affecting the printing effect. In order to make the surface of the bag print smoother, the printing quality of the printing equipment is effectively improved. Figure 1 - Figure 3 and Figure 6The present embodiment provides a high-speed printing device for processing square bottom valve bags, including a printing body 1 and a roll-up stand 2 fixedly installed at one end of the printing body 1, the roll-up stand 2 is used to place the bag roll for feeding the bag, and a receiving roller group 3 installed on the printing body 1 is provided on one side of the bottom of the roll-up stand 2, the receiving roller group 3 limits the bag put down by the roll-up stand 2 and lays the bag flat, and a feed roller group 4 with a vertical height higher than the receiving roller group 3 is installed in the middle of the printing body 1, the feed roller group 4 limits the bag fed into the body and lays the bag flat again, so as to ensure that the pocket is printed more flatly and improve the printing effect.

[0033] In order to avoid the situation where solid dust is printed on the pocket surface during printing, which causes convex points in the printed pattern, a cleaning mechanism 5 for cleaning dust on the pocket surface is arranged between the receiving roller group 3 and the feeding roller group 4. The cleaning mechanism 5 includes a limiting shell 51 fixedly arranged on both sides of the printing body 1, two roller brushes 52 and roller brush 2 53 arranged between the two limiting shells 51, the brush bodies on roller brush 1 52 and roller brush 2 53 are arranged alternately, and the vertical height of roller brush 1 52 is higher than the vertical height of roller brush 2 53, which can ensure that roller brush 1 52 and roller brush 2 53 can clean the dust on the pocket surface more thoroughly, and inclined slide grooves 54 are respectively opened on the two limiting shells 51, and the two ends of roller brush 1 52 and roller brush 2 53 respectively pass through the two inclined slide grooves 54 and are slidably connected thereto, and a collection box is slidably arranged on the inner bottom of the printing body 1, and the dust generated by cleaning directly falls into the collection box for collection, and is then centrally processed after a period of time.

[0034] A limiting slide rail 55 is fixedly provided on one side of the two limiting slide rails 51, and a movable inclined rod 56 is slidably provided on the inner side of the two limiting slide rails 55. The movable inclined rod 56 can stably slide on the inner side of the limiting slide rail 55, and the two ends of the roller brush 1 52 respectively pass through one end of the two movable inclined rods 56 and are rotatably connected thereto through bearings, and the two ends of the roller brush 2 53 respectively pass through the other end of the two movable inclined rods 56 and are rotatably connected thereto through bearings. When the movable inclined rod 56 moves, the roller brushes 1 52 and the roller brush 2 53 are driven to move, and the self-rotation of the roller brushes 1 52 and the roller brush 2 53 is not affected.

[0035] Second embodiment

[0036] In order to clean the solid dust attached to the surface of the pocket more cleanly and ensure the stability of pocket feeding, the printing quality of the printing press can be effectively improved. Figure 4In this embodiment, a driving assembly 57 for synchronously driving the roller brush 1 52 and the roller brush 2 53 to rotate is provided on one side of one of the movable inclined rods 56. The specific implementation method is that the driving assembly 57 includes a servo motor 571 fixedly installed on one side of one of the movable inclined rods 56, and a rotating inclined tube 572 fixedly arranged on the output shaft of the servo motor 571. A movable horizontal shaft 573 is slidably arranged on the inner side of the rotating inclined tube 572, and the movable horizontal shaft 573 can only slide on the inner side of the rotating inclined tube 572. When the rotating inclined tube 572 rotates, the belt The movable horizontal axis 573 rotates, and when the movable inclined rod 56 moves, the movable horizontal axis 573 moves with it, and the movable horizontal axis 573 can also maintain stable rotation. A worm 574 is fixedly provided at one end of the movable horizontal axis 573, and a support frame 575 fixed to one of the movable inclined rods 56 is rotatably provided at the other end of the worm 574 through a bearing, and a worm wheel 576 fixed to one end of the roller brush 1 52 is meshed on one side of the worm 574, and one end of the roller brush 1 52 and the roller brush 2 53 are connected with a transmission belt 577 through a pulley drive.

[0037] By starting the servo motor 571, the output shaft of the servo motor 571 drives the rotating inclined tube 572 to rotate, the rotating inclined tube 572 drives the movable horizontal shaft 573 at one end thereof to rotate, the movable horizontal shaft 573 drives the worm 574 and the worm wheel 576 to rotate at the same time, the worm wheel 576 drives the roller brush 1 52 at its axis to rotate, the roller brush 1 52 drives the roller brush 2 53 to rotate through the transmission belt 577, and then drives the roller brush 1 52 and the roller brush 2 53 to rotate at the same time to clean the surface of the pocket.

[0038] Third embodiment

[0039] In order to thoroughly clean the solid dust on the surface of the pocket, and at the same time improve the stability of the roller brush 1 52 and the roller brush 2 53 during mobile cleaning, refer to Figure 5In this embodiment, a linkage assembly 58 for simultaneously pushing the two movable inclined rods 56 to move and keeping the roller brush 1 52 and the roller brush 2 53 rotating is further provided on the inner side of the printing machine body 1. Specifically, the linkage assembly 58 includes a limiting groove 581 respectively provided at one end of the two limiting slide rails 55, and a movable connecting rod 582 respectively fixedly provided at one end of the two movable inclined rods 56, and the movable connecting rod 582 passes through the limiting groove 581 and is slidably connected thereto, and one end of the two movable connecting rods 582 is respectively fixedly provided with a movable frame 583. Limit racks 584 are fixedly arranged on both sides of the inside of the movable frame 583, and an incomplete gear 585 is meshed between the two limit racks 584. When the incomplete gear 585 rotates, the movable frame 583 is driven to reciprocate through the two limit racks 584. A limit horizontal axis 586 is arranged between the two limit shells 51, and both ends of the limit horizontal axis 586 respectively penetrate the two limit shells 51 and are rotatably connected thereto through bearings, and both ends of the limit horizontal axis 586 are fixedly connected to the two incomplete gears 585 respectively.

[0040] Furthermore, a transmission assembly 587 for connecting the driving assembly 57 to keep the limit horizontal shaft 586 rotating is provided on one side of the movable frame 583. The transmission assembly 587 includes a driven gear 5871 arranged on one side of the incomplete gear 585 and fixed to the limit horizontal shaft 586, and a driving gear 5872 meshingly arranged on one side of the driven gear 5871. A transmission shaft 5873 rotating with one of the limit housings 51 through a bearing is fixedly arranged at the axis of the driving gear 5872. A bevel gear 2 5874 is fixedly arranged at one end of the transmission shaft 5873. A bevel gear 1 5875 fixed to the rotating oblique tube 572 is meshedly arranged on one side of the bevel gear 5874. When the rotating oblique tube 572 rotates, the bevel gear 1 5875 rotates with the rotating oblique tube 572. When 72 rotates, bevel gear 1 5875 drives bevel gear 2 5874 to rotate, bevel gear 2 5874 drives transmission shaft 5873 and driving gear 5872 to rotate, driving gear 5872 drives driven gear 5871 to rotate, driven gear 5871 drives limiting horizontal shaft 586 to rotate, drives incomplete gears 585 at both ends to rotate, drives two movable frames 583 to reciprocate simultaneously, thereby driving roller brush 1 52 and roller brush 2 53 to reciprocate when rotating through two movable inclined rods 56, so that solid dust on the surface of the pocket can be thoroughly cleaned, and the stability of roller brush 1 52 and roller brush 2 53 during mobile cleaning is improved.

[0041] The present invention transports the pockets from the unwinding stand 2 to the printing machine body 1 for printing, cleans the surface of the pockets during the transportation process to prevent solid dust from adhering to the surface of the pockets and affecting the printing effect, has a reasonable structure, and cooperates with the receiving roller group 3 and the feeding roller group 4 to make the transported pockets inclined and ensure that the pockets are in a taut and flat state to achieve the cleaning of the pockets.

[0042] During actual use of the printing device, the servo motor 571 is started, and the output shaft of the servo motor 571 drives the rotating inclined tube 572 at its end to rotate, and the rotating inclined tube 572 drives the movable horizontal shaft 573 at one end to rotate, and the movable horizontal shaft 573 drives the worm 574 at one end to rotate, and the worm 574 drives the worm wheel 576 meshing with it to rotate, and the worm wheel 576 drives the roller brush 1 52 at its axis to rotate, and the roller brush 1 52 drives the roller brush 2 53 to rotate through the transmission belt 577, and at the same time drives the roller brush 1 52 and the roller brush 2 53 to rotate to clean the surface of the pocket.

[0043] At the same time, the rotating inclined tube 572 drives the bevel gear 1 5875 thereon to rotate, the bevel gear 1 5875 drives the bevel gear 2 5874 meshing therewith to rotate, the bevel gear 2 5874 drives the transmission shaft 5873 on one side thereof to rotate, the transmission shaft 5873 drives the driving gear 5872 thereon to rotate, the driving gear 5872 drives the driven gear 5871 meshing therewith to rotate, the driven gear 5871 drives the limit horizontal shaft 586 at its axis to rotate, and the limit The horizontal axis 586 drives the incomplete gears 585 at both ends to rotate, and the incomplete gear 585 drives the movable frame 583 to move back and forth through two limit racks 584. The movable frame 583 drives the movable connecting rod 582 at one end to move, and the movable connecting rod 582 drives the movable inclined rod 56 to reciprocate on the inner side of the limit slide rail 55. The two movable inclined rods 56 simultaneously drive the roller brush 1 52 and the roller brush 2 53 to reciprocate while rotating, so as to thoroughly clean the solid dust on the surface of the pocket.

[0044] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0045] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-speed printing device for processing square bottom valve bags, comprising a printing machine body (1) and a roll unwinding rack (2) fixedly mounted at one end of the printing machine body (1) for placing bag rolls, characterized in that: A receiving roller group (3) mounted on the printing machine body (1) is arranged on one side of the bottom of the unwinding frame (2); a feeding roller group (4) whose vertical height is higher than the receiving roller group (3) is installed in the middle of the printing machine body (1); a cleaning mechanism (5) for cleaning dust on the surface of the pocket is arranged between the receiving roller group (3) and the feeding roller group (4); The cleaning mechanism (5) comprises a limiting shell (51) fixedly arranged on both sides of the printing machine body (1), two roller brushes (52) and roller brushes (53) arranged between the two limiting shells (51) and spaced apart from each other, the brush bodies on the roller brushes (52) and roller brushes (53) being arranged in an interlaced manner, and the vertical height of the roller brushes (52) being higher than the vertical height of the roller brushes (53), and inclined slide grooves (54) respectively arranged on the two limiting shells (51), and the two ends of the roller brushes (52) and roller brushes (53) respectively passing through the two inclined slide grooves (54). The two limit housings (51) are slidably connected thereto, and a limit rail (55) is fixedly provided on one side of each of the two limit rails (51), and a movable inclined rod (56) is slidably provided on the inner side of each of the two limit rails (55), and a driving assembly (57) for synchronously driving the roller brush 1 (52) and the roller brush 2 (53) to rotate is provided on one side of one of the movable inclined rods (56), and a linkage assembly (58) for simultaneously pushing the two movable inclined rods (56) to move and keeping the roller brush 1 (52) and the roller brush 2 (53) rotating is also provided on the inner side of the printing machine body (1).

2. The high-speed printing equipment for processing square bottom valve bags according to claim 1, characterized in that: The two ends of the roller brush 1 (52) respectively penetrate one end of the two movable inclined rods (56) and are rotatably connected thereto via bearings, and the two ends of the roller brush 2 (53) respectively penetrate the other end of the two movable inclined rods (56) and are rotatably connected thereto via bearings.

3. The high-speed printing equipment for processing square bottom valve bags according to claim 1, characterized in that: The driving assembly (57) comprises a servo motor (571) fixedly mounted on one side of one of the movable inclined rods (56), and a rotating inclined tube (572) fixedly mounted on the output shaft of the servo motor (571), a movable transverse shaft (573) being slidably mounted on the inner side of the rotating inclined tube (572), and the movable transverse shaft (573) can only slide on the inner side of the rotating inclined tube (572).

4. The high-speed printing device for processing square bottom valve bags according to claim 3, characterized in that: A worm (574) is fixedly disposed at one end of the movable transverse shaft (573), and a support frame (575) fixed to one of the movable inclined rods (56) is rotatably disposed at the other end of the worm (574) via a bearing.

5. The high-speed printing equipment for processing square bottom valve bags according to claim 4, characterized in that: One side of the worm (574) is meshed with a worm wheel (576) fixed to one end of the roller brush 1 (52); one end of the roller brush 1 (52) and the roller brush 2 (53) are connected by a transmission belt (577) via a pulley transmission.

6. The high-speed printing equipment for processing square bottom valve bags according to claim 3, characterized in that: The linkage assembly (58) comprises a limiting groove (581) respectively provided at one end of the two limiting slide rails (55), and a movable connecting rod (582) respectively fixedly arranged at one end of the two movable inclined rods (56), and the movable connecting rod (582) passes through the limiting groove (581) and is slidably connected thereto, and a movable frame (583) is respectively fixedly arranged at one end of the two movable connecting rods (582), and limiting racks (584) are respectively fixedly arranged on both sides of the inside of the movable frame (583), and an incomplete gear (585) is meshed between the two limiting racks (584), and a transmission assembly (587) for connecting to a driving assembly (57) to keep the limiting horizontal axis (586) rotating is arranged on one side of the movable frame (583).

7. The high-speed printing device for processing square bottom valve bags according to claim 6, characterized in that: A limiting transverse axis (586) is arranged between the two limiting shells (51), and two ends of the limiting transverse axis (586) respectively penetrate the two limiting shells (51) and are rotatably connected thereto via bearings, and two ends of the limiting transverse axis (586) are respectively fixedly connected to the two incomplete gears (585).

8. The high-speed printing device for processing square bottom valve bags according to claim 6, characterized in that: The transmission assembly (587) comprises a driven gear (5871) arranged on one side of the incomplete gear (585) and fixed to the limit horizontal shaft (586), and a driving gear (5872) meshingly arranged on one side of the driven gear (5871), and a transmission shaft (5873) rotating with one of the limit housings (51) via a bearing is fixedly arranged at the axis of the driving gear (5872).

9. The high-speed printing device for processing square bottom valve bags according to claim 8, characterized in that: A second bevel gear (5874) is fixedly disposed at one end of the transmission shaft (5873), and a first bevel gear (5875) fixed to the rotating bevel tube (572) is meshedly disposed on one side of the second bevel gear (5874).