Guide roller structure based on woven bag surface printing machine and using method of guide roller structure

Abstract

The invention discloses a guide roller structure based on a woven bag surface printing machine and a using method thereof, and relates to the field of woven bag surface printing machines. According to the guide roller structure based on the woven bag surface printing machine and the using method of the guide roller structure, the guide roller structure comprises a guide roller frame, a positioning unit, a tension unit, a first patterned edge roller and a third patterned edge roller, triangular edges are additionally arranged on the circular surfaces of the first patterned edge roller, the third patterned edge roller and a second patterned edge roller, and a woven bag is in contact and extrusion with the triangular edges; the stability of longitudinal yarns and transverse yarns during transmission is guaranteed, relative displacement of yarns is reduced, it is ensured that warp and weft yarns in a pattern area keep a fixed interweaving structure, and bending of a printing layer due to deformation of a base is avoided; triangular edges distributed at equal intervals are arranged, so that a woven bag is stably extruded, and the triangular edges making contact with the cloth cover fix the contact position of the cloth cover; therefore, the joint of the warp and the weft is not loosened, and the cloth cover is not deformed.

Description

Technical Field

[0001] This invention relates to the field of woven bag surface printing machine technology, specifically to a guide roller structure based on a woven bag surface printing machine and its usage method. Background Technology

[0002] Woven bag surface printing machines can print single or multiple colors in daily production printing processes. The specific number of colors depends on the customer's requirements. Existing machines on the market can generally print six colors on the front at one time, or print four colors on the front and two colors on the back at one time.

[0003] In the printing process, in order to ensure that the woven fabric is flat, the tension is uniform, and the multi-color printing pattern has minimal vertical and horizontal errors, the production equipment manufacturers have adopted multiple processes and installed no less than six guide rollers in each group. Through pneumatic flexible pressure operation and tension adjustment, and then through computer processing of mechanical parameters, the tension is automatically adjusted to achieve the smooth and consistent transition of the fabric roll during the printing process.

[0004] However, during the multi-batch transmission process, the woven bag fabric is prone to misalignment and displacement due to the rolling of multiple batches of fabric. This mainly occurs after the force buffer guide roller passes through the final assembly of the printed text, causing the printed text to bend on the fabric surface and fail to meet customer requirements.

[0005] Therefore, in order to meet customer requirements, the only option at present is to send a large number of people to manually inspect the finished bags that have already been printed. Sometimes the defect rate can reach 50%, and the best product pass rate will not exceed 85%. The high cost makes it impossible for the company to survive.

[0006] The reason for uneven printing is that the guide roller has a small diameter, which makes the bending radius too small when the woven fabric roll passes through. This causes the longitudinal and weft threads of the woven fabric to shift, loosen, and misalign, resulting in fabric deformation and bending of the printed patterns and text.

[0007] In order to prevent the warp and weft threads from loosening and maintaining their original structure, and to prevent the fabric from deforming after printing patterns and text, it is necessary to overcome the problem of the guide rollers fixing the contact points of the fabric when passing through them. This will ensure that the warp and weft threads do not loosen and the fabric does not deform.

[0008] Currently, by replacing the original six 60mm diameter guide rollers in the middle section with three 150mm diameter ribbed rotating buffer guide rollers, and through repeated experiments, adding seven patterned triangular ridges to the 150mm diameter circular surface, the problem of uneven printing lines after printing on non-laminated woven bags has been completely solved. The printed non-laminated woven bag rolls directly meet the standards of companies with particularly strict printing requirements, thereby greatly reducing the company's production costs, retaining high-end customers, and making the company highly competitive in the market. Summary of the Invention

[0009] To address the shortcomings of existing technologies, this invention provides a guide roller structure and its usage method based on a woven bag surface printing machine. This solves the problem that the small diameter of the guide roller results in a small bending radius when the woven fabric roll passes through, causing the longitudinal and weft threads of the woven fabric to shift, loosen, or misalign, leading to fabric deformation and bending of the printed patterns and text.

[0010] To achieve the above objectives, the present invention provides the following technical solution: a guide roller structure and its usage method based on a woven bag surface printing machine, wherein the guide roller structure includes:

[0011] Guide roller frame;

[0012] The positioning unit has its transmission mechanism located in the guide roller frame;

[0013] The tension unit includes a rotating frame and a moving component, the moving component sliding relative to the rotating frame, and a second ribbed roller rotatably connected to the end of the moving component;

[0014] First ribbed roller;

[0015] Third flower-shaped roller;

[0016] Both the first and third ribbed rollers are rotatably connected in the guide roller frame;

[0017] The outer peripheral walls of the first, third, and second ribbed rollers are each provided with a number of triangular ridges. These ridges work together to compress the woven bag, which passes sequentially from above the first ribbed roller, below the second ribbed roller, and below the third ribbed roller.

[0018] Preferably, a contact roller is rotatably connected to the guide roller frame, and the contact roller is located below the first ribbed roller.

[0019] Preferably, the positioning unit includes:

[0020] The lower drive shaft is rotatably connected between the bearing seats on the guide roller frame, which is mounted on the guide roller frame.

[0021] The upper drive shaft is positioned above the lower drive shaft;

[0022] Two positioning wheels are slidably connected to the outer peripheral wall of the upper drive shaft. Bolts are provided on the positioning wheels, and the positioning wheels are fixed to the upper drive shaft by the bolts.

[0023] Preferably, lower gears are provided on both sides of the lower drive shaft, and upper gears are provided on both sides of the upper drive shaft. The upper gears mesh with the corresponding lower gears, and adjustment components are provided at both ends of the upper drive shaft.

[0024] Preferably, the adjustment component includes:

[0025] A fixed frame, which is mounted on the guide roller frame;

[0026] An adjusting seat is slidably connected to a fixed frame, and a bearing is provided in the adjusting seat. The upper drive shaft is rotatably connected to the fixed frame in cooperation with the bearing.

[0027] The extrusion screw is threadedly connected to the fixed frame, and the bottom end of the extrusion screw is located on the adjusting seat;

[0028] A slide groove is formed in a fixed frame, and the adjusting seat is slidably connected in the slide groove, which is used to define the position of the adjusting seat.

[0029] Preferably, the tension unit further includes:

[0030] The first rotating seat is fixedly connected to the guide roller frame, and the rotating frame is rotatably connected to the outer peripheral wall of the first rotating seat;

[0031] A cylinder has a second rotating seat rotatably connected to its bottom end. The second rotating seat is fixedly connected to the guide roller frame. The cylinder rotates relative to the guide roller frame in cooperation with the second rotating seat. The top end of the cylinder is rotatably connected to the rotating frame.

[0032] The first connecting roller is rotatably connected in the rotating frame;

[0033] The second connecting roller is rotatably connected in the rotating frame.

[0034] Preferably, the moving component includes:

[0035] A movable frame is attached to a rotating frame, and the second ribbed roller is rotatably connected to the inner wall of the movable frame;

[0036] The sliding block is fixedly connected to the outer wall of the rotating frame;

[0037] A sliding groove is formed in the movable frame, and the sliding block is slidably connected to the inner wall of the sliding groove. The movable frame slides relative to the rotating frame through the sliding block and the sliding groove.

[0038] Preferably, a threaded rod is fixedly connected to one side of the sliding block, and a nut seat is threadedly connected to the outer peripheral wall of the threaded rod, the nut seat being in contact with the movable frame.

[0039] Preferably, a first guide roller, a second guide roller, and a third guide roller are rotatably connected on the guide roller frame. The first guide roller, the second guide roller, and the third guide roller are on the same horizontal plane and are distributed at equal intervals.

[0040] Preferably, it includes the following steps:

[0041] S1: After the woven bag is printed by the printing unit, it is dried by the drying unit. At this time, the dried woven bag first passes through the bottom of the contact roller and the woven bag adheres to the outer peripheral wall of the contact roller. Then, the woven bag passes through the top of the first ribbed roller and adheres to the first ribbed roller. The woven bag is then pressed by the triangular ribs set on the first ribbed roller.

[0042] S2: The woven bag passing through the first ribbed roller passes through the positioning unit. By placing the woven bag between the lower drive shaft and the upper drive shaft, and by placing the woven bag at the center position on the lower drive shaft, the positioning wheel is adjusted to slide on the upper drive shaft so that the positioning wheel is positioned at both ends of the woven bag. The positioning wheel is then fixed on the upper drive shaft with bolts. By adjusting the upper drive shaft to move to the lower drive shaft, the two positioning wheels are controlled to contact and squeeze the two ends of the woven bag.

[0043] S3: At this point, after the woven bag passes through the lower drive shaft and the positioning wheel, it passes under the second ribbed roller, then passes over the guide roller structure, and after passing through the guide roller structure, it passes under the third ribbed roller. The woven bag is placed on the electrostatic dust removal system after passing through the third ribbed roller.

[0044] S4: By controlling the cylinder to start, the cylinder output end pulls the rotating frame to rotate along the first rotating seat. At the same time, the cylinder follows the second rotating seat to rotate. Under the rotation of the rotating frame, the moving component at its end and the second rib roller are driven to rotate. The tension on the woven bag is controlled by the up-and-down stroke frequency of the second rib roller.

[0045] Its beneficial effects are as follows:

[0046] 1. The guide roller structure and its usage method based on the woven bag surface printing machine, by setting the first, third, and second ribbed rollers to a diameter of 150mm, compared with the 60mm diameter rollers in the prior art, the increased diameter increases the radius of curvature, making the bending arc of the woven bag smoother, significantly reducing the warp yarn stretch rate and weft yarn compression rate, and preventing the yarn from slipping due to excessive deformation. The radius of curvature is further increased by the triangular ridges; the contact and compression between the woven bag and the triangular ridges ensures the stability of the warp and weft yarns during transmission, reduces the relative displacement of the yarns, ensures that the warp and weft yarns in the pattern area maintain a fixed interlacing structure, and prevents the printing layer from bending due to substrate deformation; by setting the triangular ridges at equal intervals, the stability of the contact with the woven bag is effectively guaranteed, the compression of the woven bag is stable, and the triangular ridges in contact with the fabric surface fix the contact point of the fabric surface, so that the warp and weft yarns do not loosen and the fabric surface does not deform.

[0047] 2. The guide roller structure and its usage method based on the woven bag surface printing machine: When the lower drive shaft rotates, it drives the lower gear to rotate accordingly. At this time, the upper gear meshing with it rotates, driving the upper drive shaft and the positioning wheel installed on the upper drive shaft to rotate. With the cooperation of the positioning wheel and the lower drive shaft, the two ends of the woven bag are limited, effectively limiting the longitudinal and transverse threads, and preventing the longitudinal and transverse threads from shifting and affecting the deformation of the printed pattern.

[0048] 3. The guide roller structure and its usage method based on the woven bag surface printing machine: After the woven bag passes through the lower drive shaft and positioning wheel, it passes under the second ribbed roller and then over the guide roller structure. The guide roller structure supports the woven bag, ensuring tension and effectively guaranteeing the tightness of the woven bag, ensuring smooth conveying. By adjusting the support of the woven bag on the guide roller structure, the entry and exit angles of the woven bag can be controlled, facilitating further adjustment of the stability of the woven bag conveying and limiting the longitudinal and transverse yarns of the woven bag. Attached Figure Description

[0049] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0050] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0051] Figure 2 This is a schematic diagram of the overall structure of the woven bag surface printing machine of the present invention;

[0052] Figure 3This is a schematic diagram of the guide roller structure of the present invention;

[0053] Figure 4 This is a schematic diagram of the guide roller frame structure of the present invention;

[0054] Figure 5 This is a schematic diagram of the triangular prism structure of the present invention;

[0055] Figure 6 This is a schematic diagram of the positioning unit structure of the present invention;

[0056] Figure 7 This is a schematic diagram of the tension unit structure of the present invention;

[0057] Figure 8 This is a schematic diagram of the structure of the mobile component of the present invention.

[0058] In the diagram: 1. Guide roller structure; 11. Guide roller frame; 12. Contact roller; 13. Positioning unit; 131. Lower drive shaft; 132. Upper drive shaft; 133. Positioning wheel; 134. Lower gear; 135. Upper gear; 136. Adjusting assembly; 1361. Fixed frame; 1362. Adjusting seat; 1363. Extrusion screw; 1364. Slide groove; 14. Tension unit; 141. Rotating frame; 142. First rotating seat; 143. Cylinder; 144. Second rotating seat. 145. Moving base; 146. First connecting roller; 147. Second connecting roller; 148. Moving assembly; 1471. Moving frame; 1472. Sliding block; 1473. Sliding groove; 1474. Threaded rod; 1475. Nut seat; 148. Second ribbed roller; 15. First ribbed roller; 16. Third ribbed roller; 17. Guide roller structure; 171. First guide roller; 172. Second guide roller; 173. Third guide roller; 18. Triangular ridge; 2. Electrostatic dust removal system. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0060] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0061] This invention discloses a guide roller structure and its usage method based on a woven bag surface printing machine, according to the appendix. Figure 1-4 As shown, the guide roller structure 1 includes:

[0062] Guide roller frame 11;

[0063] The positioning unit 13 is driven in the guide roller frame 11. The positioning unit 13 is used to discharge air from the inside of the woven bag and prevent wrinkles during winding.

[0064] Tension unit 14 includes a rotating frame 141 and a moving component 147. The rotating frame 141 is rotatably connected to the guide roller frame 11, and the moving component 147 slides relative to the rotating frame 141. A second ribbed roller 148 is rotatably connected to the end of the moving component 147.

[0065] The first ribbed roller 15 is rotatably connected in the guide roller frame 11;

[0066] The third ribbed roller 16 is rotatably connected in the guide roller frame 11;

[0067] The outer peripheral walls of the first ribbed roller 15, the third ribbed roller 16, and the second ribbed roller 148 are provided with a number of triangular ribs 18. The triangular ribs 18 work together to compress the woven bag. The woven bag passes through the top of the first ribbed roller 15, the bottom of the second ribbed roller 148, and the bottom of the third ribbed roller 16 in sequence. The woven bag fabric is fixed by the action of the first ribbed roller 15, the third ribbed roller 16, and the second ribbed roller 148.

[0068] A contact roller 12 is rotatably connected in the guide roller frame 11. The contact roller 12 is located below the first ribbed roller 15. The woven bag passes through the bottom of the contact roller 12 and is in contact with the outer peripheral wall of the contact roller 12. The woven bag then passes through the top of the first ribbed roller 15.

[0069] According to the appendix Figure 5 As shown, the diameters of the first ribbed roller 15, the third ribbed roller 16, and the second ribbed roller 148 are further set to 150 mm. Seven triangular edges 18 are added to the circular surfaces of the first ribbed roller 15, the third ribbed roller 16, and the second ribbed roller 148. The seven triangular edges 18 are distributed at equal intervals, and the edge distance between adjacent triangular edges 18 is 67.28 mm.

[0070] It is particularly important to emphasize that by setting the first ribbed roller 15, the third ribbed roller 16, and the second ribbed roller 148 to a diameter of 150mm, compared with the 60mm diameter roller in the prior art, the diameter is increased, the radius of curvature is increased, the curvature of the woven bag is made gentler, the warp yarn stretch rate and weft yarn compression rate are significantly reduced, and the yarn slippage due to excessive deformation is avoided. The radius of curvature is further increased by the triangular rib 18.

[0071] Furthermore, by squeezing the woven bag against the triangular ridge 18, the stability of the longitudinal and transverse yarns during transmission is ensured, the relative displacement of the yarns is reduced, and the warp and weft yarns in the pattern area are kept in a fixed interlacing structure to prevent the printed layer from bending due to substrate deformation.

[0072] Furthermore, by setting seven equally spaced triangular ridges 18, the stability of the contact with the woven bag is effectively guaranteed, the compression of the woven bag is stable, and the triangular ridges 18 that contact the fabric surface fix the contact point of the fabric surface, so that the warp and weft threads do not loosen and the fabric surface does not deform.

[0073] According to the appendix Figure 6 As shown, the positioning unit 13 includes:

[0074] The lower drive shaft 131 is rotatably connected between the bearing seats on the guide roller frame 11. One end of the lower drive shaft 131 is connected to a drive motor, which drives the lower drive shaft 131 to rotate.

[0075] The upper drive shaft 132 is positioned above the lower drive shaft 131;

[0076] Two positioning wheels 133 are slidably connected to the outer peripheral wall of the upper drive shaft 132. Bolts are provided on the positioning wheels 133, and the positioning wheels 133 are fixed to the upper drive shaft 132 by the bolts.

[0077] The lower drive shaft 131 is provided with a lower gear 134 on both sides, and the upper drive shaft 132 is provided with an upper gear 135 on both sides. The upper gear 135 meshes with the corresponding lower gear 134, and the upper drive shaft 132 is provided with an adjustment component 136 at both ends.

[0078] It is particularly important to emphasize that when the lower drive shaft 131 rotates, it drives the lower gear 134 to rotate as well. At this time, the upper gear 135, which meshes with it, rotates, driving the upper drive shaft 132 and the positioning wheel 133 mounted on the upper drive shaft 132 to rotate. With the cooperation of the positioning wheel 133 and the lower drive shaft 131, the two ends of the woven bag are restricted, effectively restricting the longitudinal and transverse threads and preventing the longitudinal and transverse threads from shifting, which would affect the deformation of the printed pattern.

[0079] Adjustment component 136 includes:

[0080] The fixed frame 1361 is mounted on the guide roller frame 11;

[0081] The adjusting seat 1362 is slidably connected to the fixed frame 1361. The adjusting seat 1362 is provided with a bearing, and the upper drive shaft 132 is rotatably connected to the fixed frame 1361 in cooperation with the bearing.

[0082] The extrusion screw 1363 is threadedly connected to the fixed frame 1361, and the bottom end of the extrusion screw 1363 is located on the adjusting seat 1362;

[0083] The slide groove 1364 is formed in the fixed frame 1361, and the adjusting seat 1362 is slidably connected in the slide groove 1364. The slide groove 1364 is used to limit the position of the adjusting seat 1362.

[0084] It is particularly important to emphasize that by rotating the extrusion screw 1363, the extrusion screw 1363 pushes the adjusting seat 1362 to slide in the slide groove 1364. At this time, the adjusting seat 1362 moves, which drives the upper transmission shaft 132, which is driven by the bearing, to move accordingly. At this time, the positioning wheel 133 extrudes the two ends of the woven bag. With the cooperation of the positioning wheel 133 and the lower transmission shaft 131, the two ends of the woven bag are limited, effectively limiting the longitudinal and transverse threads and preventing the longitudinal and transverse threads from shifting, which would affect the deformation of the printed pattern.

[0085] According to the appendix Figure 7 and Figure 8 As shown, the tension unit 14 also includes:

[0086] The first rotating seat 142 is fixedly connected to the guide roller frame 11, and the rotating frame 141 is rotatably connected to the outer peripheral wall of the first rotating seat 142;

[0087] The cylinder 143 has a second rotating seat 144 rotatably connected to its bottom end. The second rotating seat 144 is fixedly connected to the guide roller frame 11. The cylinder 143 rotates relative to the guide roller frame 11 in cooperation with the second rotating seat 144. The top end of the cylinder 143 is rotatably connected to the rotating frame 141.

[0088] The first connecting roller 145 is rotatably connected to the rotating frame 141;

[0089] The second connecting roller 146 is rotatably connected in the rotating frame 141.

[0090] Mobile component 147 includes:

[0091] The movable frame 1471 is in contact with the rotating frame 141, and the second ribbed roller 148 is rotatably connected to the inner wall of the movable frame 1471.

[0092] Sliding block 1472 is fixedly connected to the outer wall of rotating frame 141;

[0093] A sliding groove 1473 is formed in the movable frame 1471, and a sliding block 1472 is slidably connected to the inner wall of the sliding groove 1473. The movable frame 1471 slides relative to the rotating frame 141 through the sliding block 1472 and the sliding groove 1473.

[0094] A threaded rod 1474 is fixedly connected to one side of the sliding block 1472. A nut seat 1475 is threadedly connected to the outer peripheral wall of the threaded rod 1474. The nut seat 1475 is in contact with the movable frame 1471.

[0095] It is particularly important to emphasize that by pulling the movable frame 1471 along the sliding block 1472, the movable frame 1471 slides relative to the sliding block 1472 and the rotating frame 141, thereby adjusting the position of the movable frame 1471. This, in turn, adjusts the second rib roller 148 at the end of the movable frame 1471, thereby adjusting the angle of entry of the woven bag, adjusting the curvature, significantly reducing the warp yarn stretch rate and weft yarn compression rate, and preventing the yarn from slipping due to excessive deformation.

[0096] According to the appendix Figure 4 As shown, a first guide roller 171, a second guide roller 172, and a third guide roller 173 are rotatably connected on the guide roller frame 11. The first guide roller 171, the second guide roller 172, and the third guide roller 173 are on the same horizontal plane and are distributed at equal intervals.

[0097] After the woven bag passes through the lower drive shaft 131 and the positioning wheel 133, it passes under the second ribbed roller 148 and then over the guide roller structure 17. The guide roller structure 17 supports the woven bag, ensuring the tension of the woven bag and effectively ensuring the tension of the woven bag, thus ensuring smooth conveying.

[0098] It is specifically disclosed that it has multiple uses:

[0099] Method 1: Pass through the top of the first guide roller 171, lay flat on the second guide roller 172 and the third guide roller 173, and then pass through the top of the third guide roller 173 and the bottom of the third ribbed roller 16.

[0100] Method 2: Pass over the second guide roller 172, lay flat on the third guide roller 173, and then pass over the third guide roller 173 and under the third ribbed roller 16.

[0101] Method 3: Passing over the first guide roller 171, lay flat on the second guide roller 172, and then pass over the second guide roller 172 and under the third ribbed roller 16;

[0102] By using the above three methods, the entry and exit angles of the woven bag can be adjusted, which facilitates further adjustment of the stability of the woven bag conveying and limits the longitudinal and transverse threads of the woven bag.

[0103] Working principle: After the woven bag is printed by the printing unit, it is dried by the drying unit. At this time, the dried woven bag first passes through the bottom of the contact roller 12 and the woven bag adheres to the outer peripheral wall of the contact roller 12. Then, the woven bag passes through the top of the first rib roller 15 and adheres to the first rib roller 15. The woven bag is then pressed by the triangular ribs 18 set on the first rib roller 15.

[0104] By increasing the radius of curvature through the triangular ridge 18, the bending arc of the woven bag becomes gentler, significantly reducing the warp stretch rate and weft compression rate, preventing the yarn from slipping due to excessive deformation. The contact and compression between the woven bag and the triangular ridge 18 ensures the stability of the longitudinal and transverse yarns during transmission, reduces the relative displacement of the yarns, and ensures that the warp and weft yarns in the pattern area maintain a fixed interlacing structure, preventing the printing layer from bending due to substrate deformation.

[0105] The woven bag passing through the first ribbed roller 15 passes through the positioning unit 13. The woven bag is placed between the lower drive shaft 131 and the upper drive shaft 132. The woven bag is placed at the center position on the lower drive shaft 131. The positioning wheel 133 is adjusted to slide on the upper drive shaft 132 so that the positioning wheel 133 is positioned at both ends of the woven bag. The positioning wheel 133 is then fixed on the upper drive shaft 132 with bolts.

[0106] At this point, by adjusting the upper drive shaft 132 to move the lower drive shaft 131, the two positioning wheels 133 are controlled to contact and squeeze the two ends of the woven bag, thereby further restricting the woven bag and preventing it from tilting during transmission, which would cause the inherent positions of its longitudinal and transverse yarns to be misaligned and move, resulting in the printed pattern bending and deforming due to the misalignment of the yarns.

[0107] Specifically, by rotating the extrusion screw 1363, the extrusion screw 1363 pushes the adjusting seat 1362 to slide in the slide groove 1364. At this time, the adjusting seat 1362 moves, driving the upper transmission shaft 132, which is driven by the bearing, to move accordingly. At this time, the positioning wheel 133 extrudes the two ends of the woven bag. With the cooperation of the positioning wheel 133 and the lower transmission shaft 131, the two ends of the woven bag are limited, effectively limiting the longitudinal and transverse threads, and preventing the longitudinal and transverse threads from shifting, which would affect the deformation of the printed pattern.

[0108] When the lower drive shaft 131 is driven by the drive motor, the lower drive shaft 131 drives the lower gear 134 to drive, and then the lower gear 134 drives the upper gear 135 to rotate, so that the upper drive shaft 132 drives the positioning wheel 133 to rotate with the lower drive shaft 131, and drives the woven bag to be transported synchronously, effectively ensuring the stability of the woven bag transport and avoiding problems such as deformation of the woven bag.

[0109] At this time, after the woven bag passes through the lower drive shaft 131 and the positioning wheel 133, it passes under the second ribbed roller 148, then passes over the guide roller structure 17, and after passing through the guide roller structure 17, it passes under the third ribbed roller 16. The woven bag is placed on the electrostatic dust removal system 2 through the third ribbed roller 16. Under the action of the third ribbed roller 16, the stability of the woven bag transmission is ensured, and the deviation of the longitudinal and transverse yarns is avoided.

[0110] During the transport of woven bags, the tension of the woven bag is adjusted in real time by the second ribbed roller 148 between the end of the feeding process and the printing inlet. This eliminates the phenomenon of material loosening or over-tightening caused by fluctuations in the feeding speed, ensuring that the material is flat and without shaking during printing.

[0111] Furthermore, the speed at which the woven bags enter the receiving system is precisely adjusted to be synchronized with the speed at the drying outlet, preventing the bag surface from being stretched, deformed, or wrinkled due to speed differences. The tension data is fed back to the PLC in real time, and the winding torque is dynamically fine-tuned through the magnetic powder brake or frequency converter to maintain constant tension during receiving.

[0112] The cylinder 143 is started, and the output end of the cylinder 143 pulls the rotating frame 141 to rotate along the first rotating seat 142. At the same time, the cylinder 143 rotates with the second rotating seat 144. Under the rotation of the rotating frame 141, the moving component 147 at its end and the second rib roller 148 are driven to rotate. Under the up and down frequency stroke of the second rib roller 148, the tension on the woven bag is controlled. At the same time, under the action of the second rib roller 148, the longitudinal and transverse yarns of the woven bag are limited by the triangular ridges 18 on the second rib roller 148.

[0113] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0114] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A guide roller structure based on a woven bag surface printing machine, characterized in that, The guide roller structure (1) includes: Guide roller frame (11); The positioning unit (13) is driven in the guide roller frame (11); Tension unit (14) includes a rotating frame (141) and a moving component (147), the moving component (147) sliding relative to the rotating frame (141), and a second ribbed roller (148) rotatably connected to the end of the moving component (147). First ribbed roller (15); Third ribbed roller (16); The first ribbed roller (15) and the third ribbed roller (16) are both rotatably connected in the guide roller frame (11); The outer peripheral walls of the first ribbed roller (15), the third ribbed roller (16), and the second ribbed roller (148) are all provided with a number of triangular ribs (18). The triangular ribs (18) are used to squeeze the woven bag. The woven bag passes through the top of the first ribbed roller (15), the bottom of the second ribbed roller (148), and the bottom of the third ribbed roller (16) in sequence.

2. The guide roller structure based on a woven bag surface printing machine according to claim 1, characterized in that, A contact roller (12) is rotatably connected in the guide roller frame (11), and the contact roller (12) is located below the first ribbed roller (15).

3. The guide roller structure based on a woven bag surface printing machine according to claim 1, characterized in that, The positioning unit (13) includes: The lower drive shaft (131) has a set of bearing seats installed on the guide roller frame (11), and the lower drive shaft (131) is rotatably connected between the set of bearing seats; The upper drive shaft (132) is positioned above the lower drive shaft (131); Two positioning wheels (133) are slidably connected to the outer peripheral wall of the upper drive shaft (132). Bolts are provided on the positioning wheels (133), and the positioning wheels (133) are fixed to the upper drive shaft (132) by the bolts.

4. The guide roller structure based on a woven bag surface printing machine according to claim 3, characterized in that, The lower drive shaft (131) is provided with a lower gear (134) on both sides, and the upper drive shaft (132) is provided with an upper gear (135) on both sides. The upper gear (135) meshes with the corresponding lower gear (134). The upper drive shaft (132) is provided with an adjustment component (136) at both ends.

5. The guide roller structure based on a woven bag surface printing machine according to claim 4, characterized in that, The adjustment component (136) includes: A fixed frame (1361) is mounted on the guide roller frame (11); An adjusting seat (1362) is slidably connected to a fixed frame (1361). A bearing is provided in the adjusting seat (1362), and the upper transmission shaft (132) is rotatably connected to the fixed frame (1361) in cooperation with the bearing. A pressing screw (1363) is threadedly connected in a fixed frame (1361), and the bottom end of the pressing screw (1363) is located on an adjusting seat (1362); A slide groove (1364) is provided in a fixed frame (1361), and the adjusting seat (1362) is slidably connected in the slide groove (1364), which is used to define the position of the adjusting seat (1362).

6. The guide roller structure based on a woven bag surface printing machine according to claim 1, characterized in that, The tension unit (14) also includes: The first rotating seat (142) is fixedly connected to the guide roller frame (11), and the rotating frame (141) is rotatably connected to the outer peripheral wall of the first rotating seat (142); A cylinder (143) has a second rotating seat (144) rotatably connected to its bottom end. The second rotating seat (144) is fixedly connected to the guide roller frame (11). The cylinder (143) rotates relative to the guide roller frame (11) in cooperation with the second rotating seat (144). The top end of the cylinder (143) is rotatably connected to the rotating frame (141). The first connecting roller (145) is rotatably connected in the rotating frame (141); The second connecting roller (146) is rotatably connected in the rotating frame (141).

7. The guide roller structure based on a woven bag surface printing machine according to claim 1, characterized in that, The moving component (147) includes: A movable frame (1471) is attached to a rotating frame (141), and the second ribbed roller (148) is rotatably connected to the inner wall of the movable frame (1471). A sliding block (1472) is fixedly connected to the outer wall of the rotating frame (141); A sliding groove (1473) is formed in the movable frame (1471), and the sliding block (1472) is slidably connected to the inner wall of the sliding groove (1473). The movable frame (1471) slides relative to the rotating frame (141) through the sliding block (1472) and the sliding groove (1473).

8. The guide roller structure based on a woven bag surface printing machine according to claim 7, characterized in that, A threaded rod (1474) is fixedly connected to one side of the sliding block (1472), and a nut seat (1475) is threadedly connected to the outer peripheral wall of the threaded rod (1474), and the nut seat (1475) is in contact with the movable frame (1471).

9. The guide roller structure based on a woven bag surface printing machine according to claim 1, characterized in that, The guide roller frame (11) is rotatably connected to a first guide roller (171), a second guide roller (172) and a third guide roller (173). The first guide roller (171), the second guide roller (172) and the third guide roller (173) are on the same horizontal plane and are distributed at equal intervals.

10. A method of using a guide roller structure for a woven bag surface printing machine, wherein the guide roller structure for a woven bag surface printing machine according to any one of claims 1-9 is characterized in that, Includes the following steps: S1: After the woven bag is printed by the printing unit, it is dried by the drying unit. At this time, the dried woven bag first passes through the bottom of the contact roller (12), and the woven bag is attached to the outer peripheral wall of the contact roller (12). Then, the woven bag passes through the top of the first rib roller (15), and the woven bag is attached to the first rib roller (15). The woven bag is pressed by the triangular rib (18) set on the first rib roller (15). S2: The woven bag passing through the first ribbed roller (15) passes through the positioning unit (13). By placing the woven bag between the lower drive shaft (131) and the upper drive shaft (132), by placing the woven bag at the center position on the lower drive shaft (131), by adjusting the positioning wheel (133) to slide on the upper drive shaft (132), the positioning wheel (133) is positioned at both ends of the woven bag. Then, the positioning wheel (133) is fixed on the upper drive shaft (132) by bolts. By adjusting the upper drive shaft (132) to move down the lower drive shaft (131), the two positioning wheels (133) are controlled to contact and squeeze the two ends of the woven bag. S3: At this time, after the woven bag passes through the lower drive shaft (131) and the positioning wheel (133), it passes under the second ribbed roller (148), then passes over the guide roller structure (17), and after passing through the guide roller structure (17), it passes under the third ribbed roller (16). The woven bag is placed on the electrostatic dust removal system (2) through the third ribbed roller (16). S4: The cylinder (143) is started by controlling the output end of the cylinder (143) to pull the rotating frame (141) to rotate along the first rotating seat (142). At the same time, the cylinder (143) rotates with the second rotating seat (144). Under the rotation of the rotating frame (141), the moving component (147) at its end and the second rib roller (148) are driven to rotate. Under the frequency stroke of the up and down movement of the second rib roller (148), the tension on the woven bag is controlled.

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