A stringing apparatus for a tote bag and methods of using the same

Abstract

This application provides a drawstring threading device and its method for use in the field of tote bag manufacturing technology. It includes a worktable, a bag-supporting assembly, and a drawstring threading assembly. The bag-supporting assembly is disposed on the worktable and has a receiving groove with an opening at the top. The bag-supporting assembly can open the bag body and align the mounting hole with the receiving groove. The drawstring threading assembly includes a drawstring storage unit, a drawstring clamping unit, and a driving component. The drawstring storage unit can store the drawstring and has a drawstring outlet on its side near the receiving groove. One end of the drawstring extends out of the drawstring storage unit through the drawstring outlet. The driving component can drive the drawstring clamping unit to move back and forth between the drawstring outlet and the receiving groove. When the drawstring clamping unit is close to the receiving groove, it can clamp and pull the drawstring. When the drawstring clamping unit is in contact with the bag body on the bag-supporting assembly, the drawstring on the clamping unit can pass through the mounting hole and be inserted into the receiving groove. When the drawstring clamping unit is away from the receiving groove, the drawstring can be released. This application enables automatic drawstring threading of tote bags.

Description

Technical Field

[0001] This application relates to the field of tote bag manufacturing technology, and in particular to a rope-threading device for tote bags and a method of using the same. Background Technology

[0002] As a common tool for daily shopping and item organization, the drawstring threading process in the production of tote bags is a key factor affecting product quality. The quality of the drawstring installation directly determines the user experience and lifespan of the tote bag. Currently, the drawstring threading of tote bags mainly relies on manual operation.

[0003] Manually threading ropes requires workers to hold the handle and thread each end through the pre-drilled holes on the bag before tying or securing it. This method is not only inefficient, but also leads to worker fatigue from repetitive tasks, resulting in inaccurate rope placement and inconsistent knot tightness. This severely affects product consistency and quality, while also increasing labor costs.

[0004] In view of this, there is a need to provide a rope-threading device for tote bags and a method for using it. Summary of the Invention

[0005] To address the problem that existing tote bags require workers to manually thread the drawstrings during production, this application provides a drawstring threading device for tote bags and a method for using it.

[0006] In the first aspect, this application provides a rope-threading device for a tote bag, which adopts the following technical solution: it includes a workbench, a bag-supporting assembly and a rope-threading assembly. The bag-supporting assembly is disposed on the workbench and has a receiving groove. The top of the receiving groove extends to the top of the bag-supporting assembly and forms an opening. The bag-supporting assembly can open the bag opening of the bag body and make the mounting hole face the opening of the receiving groove. The rope-threading assembly includes a rope storage unit, a rope clamping unit, and a driving component. The rope storage unit is located on one side of the bag support assembly and can store the lifting rope. A rope outlet is formed on the side of the rope storage unit near the receiving groove. One end of the lifting rope extends out of the rope storage unit through the rope outlet. The driving component is kinetically connected to the rope clamping unit and can drive the rope clamping unit to move back and forth between the rope outlet and the receiving groove. When the rope clamping unit approaches the receiving groove from the rope outlet, it can clamp and pull the lifting rope. When the rope clamping unit is in contact with the bag body on the bag support assembly, the lifting rope on the rope clamping unit can pass through the mounting hole and be inserted into the receiving groove. When the rope clamping unit moves away from the receiving groove, it can release the lifting rope.

[0007] By adopting the above technical solution, the rope-threading device includes a bag-supporting assembly and a rope-threading assembly. The bag-supporting assembly opens the bag opening and aligns the mounting hole with the receiving groove opening. The rope-threading assembly's rope-clamping unit moves between the rope outlet and the receiving groove under the action of the driving component, realizing the clamping, threading, and releasing operations of the rope. Compared with the existing technology where rope threading of tote bags mainly relies on manual operation, this device can automatically complete the rope-threading process of tote bags, avoiding problems such as low efficiency, inaccurate rope placement, and inconsistent knot tightness of manual rope threading, improving rope threading efficiency and product consistency, while reducing labor costs.

[0008] Specifically, the bag support assembly includes a support rod and a bag support block adapted to the bag body. The bottom end of the support rod is connected to the table surface of the workbench, and the top end of the support rod is connected to the bottom end of the bag support block. The receiving groove is opened on the bag support block, and the top end of the receiving groove extends to the top of the bag support block to form an opening. The bag body can be covered on the bag support block.

[0009] By adopting the above technical solution, the support rod of the bag support assembly securely installs the bag support block on the workbench. The bag support block, which is adapted to the bag body, can open the bag opening, so that the mounting hole on the bag body is aligned with the slot of the receiving groove. This makes it easy for the rope threading assembly to pass the rope through the mounting hole and insert it into the receiving groove, realizing the rope threading operation of the tote bag, improving the efficiency and accuracy of rope threading, and avoiding problems such as inaccurate positioning when threading rope manually.

[0010] Specifically, the rope storage unit includes a mounting base and a rope storage box. The mounting base is disposed on the workbench, and the rope storage box is disposed on the mounting base. The rope storage box is adapted to store a stack of lifting ropes in a vertical direction. The rope outlet is provided on the inner side wall of the rope storage box near the bottom wall, and the lifting rope can pass through the rope outlet and leave the rope storage box.

[0011] By adopting the above technical solution, the mounting base of the rope storage unit is located on the workbench, and the rope storage box is located on the mounting base. This arrangement ensures the stability of the rope storage unit. The rope storage box is suitable for storing a stack of lifting ropes vertically, allowing for the storage of a large number of ropes at once, reducing the need for frequent rope additions, and improving the continuity of rope threading. Simultaneously, a rope outlet is provided on the inner side wall of the rope storage box near the bottom wall, allowing the lifting ropes to pass through the outlet in an orderly manner and exit the rope storage box. This facilitates the subsequent rope clamping unit to accurately clamp the lifting ropes for threading operations, improving the efficiency and accuracy of rope threading.

[0012] Furthermore, a clearance notch is provided on the outer wall of the rope storage box to allow access to the inside of the rope storage box. When the lifting rope is at the bottom of the rope storage box, one end of the lifting rope passes through the clearance notch and extends out of the rope storage box, where it can be connected to the rope clamping unit.

[0013] By adopting the above technical solution, the clearance notch opened on the outer wall of the rope storage box allows one end of the lifting rope at the bottom layer to pass through the notch and extend out of the rope storage box, which facilitates connection with the rope clamping unit. This ensures that the rope threading device can smoothly obtain the lifting rope for rope threading operation, thereby improving the working efficiency and stability of the rope threading device.

[0014] Furthermore, the rope clamping unit includes a guide rail, a moving platform, a drive rod, a pair of clamping plates, and a pair of connecting ropes. One end of the guide rail is located below the clearance notch, and the other end of the guide rail extends towards the receiving groove. The moving platform is mounted on the guide rail and can slide along it. A waist-shaped hole is formed on the side wall of the moving platform along the length of the guide rail. The drive member is connected to one end of the drive rod, and the other end of the drive rod is inserted into the waist-shaped hole and can slide along it. A clamping groove is formed on the top wall of the moving platform along the width of the guide rail. The clamping groove is located between the rope storage box and the waist-shaped hole, and a rope-winding protrusion is formed in the middle of the bottom wall of the clamping groove. A rope clamping gap suitable for accommodating the lifting rope is formed between the top ends of the two clamping plates. The bottom ends of the two clamping plates are inserted into the clamping groove with the rope-winding protrusion as the center and are evenly distributed. The device can slide along the clamping groove. A connecting hole leading to the waist-shaped hole is provided on the side wall of the clamping groove. The connecting rope corresponds to the clamping plate one by one. One end of each connecting rope is connected to the corresponding clamping plate, and the other end of each connecting rope extends towards the rope winding protrusion and passes through the connecting hole after passing around the rope winding protrusion to connect with the driving rod. When the driving member drives the driving rod to approach the receiving groove, the driving rod can first abut against the end wall of the waist-shaped hole near the receiving groove, and drive the two clamping plates to approach the rope winding protrusion via the two connecting ropes, so that the two clamping plates clamp the lifting rope in the rope clamping gap. When the driving member drives the driving rod away from the receiving groove, the driving rod can first abut against the end wall of the waist-shaped hole away from the receiving groove, and cause the two clamping plates to release the lifting rope in the rope clamping gap.

[0015] By adopting the above technical solution, the guide rail, moving platform, drive rod, clamping plate, and connecting rope of the rope clamping unit work together to achieve automatic clamping and releasing of the lifting rope. The drive unit drives the drive rod to slide within the oblong hole, and the clamping plate clamps or releases the lifting rope according to the direction of movement of the drive rod, utilizing the action of the connecting rope and the rope winding protrusion. At the same time, the moving platform can slide along the guide rail, accurately conveying the lifting rope from the clearance notch of the rope storage unit to the mounting hole of the bag body on the bag support assembly, improving the automation and accuracy of rope threading and avoiding the problems of low efficiency and unstable quality of manual rope threading.

[0016] Furthermore, a tension spring is provided between the side of each clamp plate facing away from the rope-winding protrusion and the sidewall of the clamping groove.

[0017] By adopting the above technical solution, when the driving component drives the driving rod close to the receiving groove and the clamping plate clamps the lifting rope, the tension spring is stretched to generate elastic force; when the driving component drives the driving rod away from the receiving groove, the elastic force of the tension spring can assist the clamping plate to release the lifting rope faster and more stably, ensuring the stability and reliability of the rope clamping unit operation and making the rope threading process smoother.

[0018] Furthermore, the rope clamping unit also includes a friction-enhancing component. The moving platform is provided with a track groove adapted to the guide rail. The friction-enhancing component is disposed on the groove wall of the track groove and can increase the friction between the moving platform and the guide rail.

[0019] By adopting the above technical solution, friction-enhancing components are installed on the groove wall of the track groove, which can increase the friction between the moving platform and the guide rail. This ensures that the moving platform will only move along the guide rail under the drive of the drive component after the clamping plate has clamped the lifting rope. This avoids the moving platform starting to move before the clamping plate has clamped the lifting rope, thereby improving the stability of the rope threading equipment and the accuracy of the rope threading operation.

[0020] Furthermore, the friction-enhancing component includes an adjusting bolt, a compression spring, a sliding rod, and an abutment. An adjusting screw hole leading to the track groove is provided on the outer side wall of the moving platform. The adjusting bolt is screwed into the adjusting screw hole, and a sliding hole is provided on the screw end of the adjusting bolt. One end of the sliding rod is inserted into the sliding hole and can slide along the sliding hole. The other end of the sliding rod is connected to the abutment. The side of the abutment away from the sliding rod abuts against the guide rail. The compression spring is located between the abutment and the adjusting bolt.

[0021] By adopting the above technical solution, the adjusting bolt is screwed into the adjusting screw hole. Rotating the adjusting bolt allows the slide rod to slide in the sliding hole at the end of the screw rod, thereby pushing the abutment to abut against the guide rail. The compression spring is set between the abutment and the adjusting bolt to play a buffering role. By tightening the adjusting bolt, the compression spring can be compressed, making the abutment tightly against the guide rail, thereby increasing the friction between the moving platform and the guide rail. This ensures that the moving platform will only move along the guide rail under the drive of the driving component after the clamping plate clamps the lifting rope, thus ensuring the stability and reliability of the rope threading process.

[0022] Specifically, the driving component is a telescopic cylinder, the cylinder body of which is arranged along the length direction of the guide rail, and the piston rod of the telescopic cylinder is connected to the driving rod.

[0023] By adopting the above technical solution, the cylinder body of the telescopic cylinder is set along the length of the guide rail, and its piston rod is connected to the drive rod, which can provide a stable and direct driving force for the rope clamping unit to move back and forth between the rope outlet and the receiving groove, ensuring that the rope clamping unit accurately clamps and releases the lifting rope, realizing the operation of lifting the rope through the bag body mounting hole, and improving the working stability and reliability of the rope threading equipment.

[0024] The second aspect of this application provides a method for using a drawstring device for tote bags, which adopts the following technical solution: S1. First, load a stack of lifting ropes into the rope storage box. Then, compress the compression spring by tightening the adjusting bolt. Then, push the abutment against the guide rail through the slide rod to increase the sliding friction between the moving platform and the guide rail. This ensures that the moving platform will move along the guide rail under the drive of the driving component after the clamping plate clamps the lifting rope. S2. First, install one of the bags onto the bag support assembly, and align the mounting hole on the bag with the opening of the receiving groove. Then, start the drive unit to drive the drive rod to move. Stop the drive unit when the end of the lifting rope passes through the mounting hole on the bag and is inserted into the receiving groove. If the end of the lifting rope is not inserted deep enough into the mounting hole on the bag at this time, control the drive unit to drive the moving platform to first move back a distance away from the receiving groove along the guide rail. Then, control the drive unit again to drive the moving platform to move closer to the receiving groove, so as to push the end of the lifting rope into the receiving groove again. S3. When the end of the lifting rope is inserted to a sufficient depth into the mounting hole on the bag body, first stop the driving component, then remove the bag body with the lifting rope threaded on from the bag support assembly, and then control the driving component to drive the moving platform away from the receiving groove along the guide rail until the rope clamping gap is repositioned directly below the clearance notch and then stop. S4. Repeat steps S2 and S3 until the rope in the rope storage box is used up.

[0025] By adopting the above technical solution, this rope-threading device utilizes friction-enhancing components to increase the sliding friction between the moving platform and the guide rail, ensuring that the moving platform only moves after the clamping plate has firmly gripped the rope, thus preventing rope threading failure due to movement before the rope is properly clamped. During the rope threading process, if the rope is not inserted deep enough into the mounting hole, the moving platform can be controlled to retract and then advance again, ensuring that the rope passes through the mounting hole accurately and to the appropriate depth. Compared with existing technologies where rope threading for tote bags mainly relies on manual operation, this method improves threading efficiency, solves the problem of low efficiency in manual rope threading, avoids worker fatigue from prolonged repetitive work, and solves problems such as inaccurate rope placement and inconsistent knot tightness caused by manual rope threading, thereby improving product consistency and quality while reducing labor costs.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The bag opening is opened by the bag support assembly and the mounting hole is aligned with the receiving groove opening. The rope threading assembly automatically threads the rope through the mounting hole, which solves the problem of low efficiency of manual rope threading and improves the rope threading efficiency. 2. The rope threading equipment automatically completes the rope threading operation, avoiding fatigue caused by long-term repetitive work for workers, reducing problems such as inaccurate rope threading position and inconsistent knot tightness, and improving product consistency and quality; 3. Using rope-threading equipment instead of manual rope threading reduces labor costs, which helps enterprises control costs and enhance market competitiveness. Attached Figure Description

[0027] Figure 1 This is a perspective view of a drawstring device for a tote bag according to this application; Figure 2 This is a top view of a drawstring device for a tote bag according to this application; Figure 3 It is along Figure 2 A schematic cross-sectional view taken along the AA direction; Figure 4 yes Figure 3 A schematic enlarged view of region B in the middle, which shows; Figure 5 It is along Figure 3 A schematic cross-sectional view taken along the CC direction; Figure 6 It is along Figure 5 A schematic cross-sectional view taken along the DD direction, showing only a portion of the mounting bracket.

[0028] Reference numerals: 1. Workbench; 2. Bag support assembly; 21. Support rod; 22. Bag support block; 221. Receiving groove; 3. Rope threading assembly; 31. Rope storage unit; 311. Mounting base; 312. Rope storage box; 3121. Clearance notch; 32. Rope clamping unit; 321. Guide rail; 322. Moving table; 3221. Rope winding protrusion; 323. Drive rod; 324. Clamping plate; 325. Connecting rope; 326. Tension spring; 327. Friction enhancer; 3271. Adjusting bolt; 3272. Compression spring; 3273. Slide rod; 3274. Abutment joint; 33. Drive component; 4. Bag body; 41. Mounting hole; 5. Lifting rope; 51. End cap. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-6 Further explanation: See Figure 1 and Figure 2A drawstring threading device for tote bags is provided, for threading a drawstring 5 through a mounting hole 41 drilled on the bag body 4. The drawstring 5 has plastic plugs 51 at both ends, allowing the plugs 51 to flip and lock into the mounting hole 41 near the inner side of the bag body 4 after passing through the mounting hole 41 along its length, thus connecting the drawstring 5 to the bag body 4. Specifically, the drawstring threading device for tote bags includes a workbench 1, a bag support assembly 2, and two drawstring threading assemblies 3. The bag support assembly 2 is mounted on the workbench 1 and includes a support rod 21 and a connecting rod 3. The bag body 4 is fitted with a support block 22. The bottom end of the support rod 21 is connected to the table surface of the workbench 1, and the top end of the support rod 21 is connected to the bottom end of the support block 22. Two receiving slots 221 are opened on both sides of the support block 22. The receiving slots 221 correspond one-to-one with the mounting holes 41, and the top end of each receiving slot 221 extends to the top of the support block 22 to form an opening. Each bag body 4 can be covered on the support block 22 with the mounting hole 41 aligned with the opening of the corresponding receiving slot 221. Two rope threading assemblies 3 are arranged opposite each other with the support block 22 as the center. Each rope threading assembly 3 corresponds to the two mounting holes 41 on one side of the bag body 4.

[0030] See Figure 3 and Figure 4 The rope-threading assembly 3 includes a rope storage unit 31, two rope clamping units 32, and four driving components 33. Each end of the lifting rope 5 corresponds to one of the two rope clamping units 32, and each rope clamping unit 32 corresponds to two driving components 33. The rope storage unit 31 includes a mounting base 311 and a rope storage box 312. The mounting base 311 is mounted on the workbench 1, and the rope storage box 312 is mounted on the mounting base 311. The interior of the rope storage box 312 forms a U-shaped accommodating space, which can store a stack of lifting ropes 5 vertically. The inner sidewall of the rope storage box 312 near the bottom wall... A rope outlet is provided at the location, the length of which is not less than the distance between the end caps 51 of the lifting rope 5 at both ends in the accommodating space, so that the lifting rope 5 can pass through the rope outlet and leave the rope storage box 312 while maintaining a U-shaped bend; two clearance notches 3121 are also provided on the outer wall of the rope storage box 312 to lead into the rope storage box 312. The clearance notches 3121 allow the end caps 51 of the lifting rope 5 located in the 1st to 3rd layers from the bottom in the accommodating space to extend out of the rope storage box 312 through the clearance notches 3121 and connect to a corresponding rope clamping unit 32.

[0031] See Figure 4 , Figure 5 and Figure 6The rope clamping unit 32 includes a guide rail 321, a moving platform 322, a drive rod 323, a pair of clamping plates 324, a pair of connecting ropes 325, and two friction-enhancing components 327. One end of the guide rail 321 is located below the clearance notch 3121, and the other end of the guide rail 321 extends towards the receiving groove 221. The moving platform 322 is mounted on the guide rail 321 and can slide along the guide rail 321. A waist-shaped through hole is formed on the side wall of the moving platform 322 along the length direction of the guide rail 321. The drive component 33 is a telescopic cylinder. The cylinder body of the telescopic cylinder is arranged along the length direction of the guide rail 321. The piston rod of the telescopic cylinder is connected to the drive rod 323. One end of the drive rod 323 is connected to the piston rod of one of the two telescopic cylinders, and the other end of the drive rod 323 passes through the waist-shaped through hole and is connected to the piston rod of the other of the two telescopic cylinders, and can slide along the waist-shaped through hole. The top wall of the moving platform 322 has... A clamping groove is provided along the width direction of the guide rail 321. The clamping groove is located between the rope storage box 312 and the waist-shaped hole. A rope-winding protrusion 3221 is formed in the middle of the bottom wall of the clamping groove. A rope clamping gap suitable for accommodating the lifting rope 5 is formed between the tops of the two clamping plates 324. The bottom ends of the two clamping plates 324 are inserted into the clamping groove with the rope-winding protrusion 3221 as the center and can slide along the clamping groove. A connecting hole leading to the waist-shaped hole is provided on the side wall of the clamping groove. The connecting rope 325 corresponds to the clamping plate 324 one by one. One end of each connecting rope 325 is connected to the corresponding clamping plate 324. The other end of each connecting rope 325 extends towards the rope-winding protrusion 3221 and passes through the connecting hole after passing around the rope-winding protrusion 3221 and connecting to the drive rod 323. A tension spring 326 is provided between the side of each clamping plate 324 facing away from the rope-winding protrusion 3221 and the side wall of the clamping groove.

[0032] See Figure 4 and Figure 6The guide rail 321 can be an I-shaped track. The moving platform 322 has a track groove adapted to the guide rail 321. A friction-enhancing component 327 is provided on each side wall of the track groove. Each friction-enhancing component 327 includes an adjusting bolt 3271, a compression spring 3272, a sliding rod 3273, and an abutment 3274. Adjusting screw holes leading into the track groove are provided on both outer side walls of the moving platform 322. The adjusting bolt 3271 is screwed into a corresponding adjusting screw hole, and a sliding hole is provided on the screw end of each adjusting bolt 3271. One end of the sliding rod 3273 is inserted into a corresponding sliding hole and can slide along the sliding hole. The other end of 273 is connected to the abutment 3274, which can be a rubber head. A compression spring 3272 is located between the abutment 3274 and the adjusting bolt 3271 so that the two abutments 3274 can clamp the vertical plate of the guide rail 321. Then, the user can compress the compression spring 3272 by tightening the adjusting bolt 3271, so that the abutment 3274 is in close contact with the guide rail 321, thereby increasing the friction between the moving platform 322 and the guide rail 321. This ensures that the moving platform 322 will move along the guide rail 321 under the drive of the driving member 33 after the clamping plate 324 clamps the lifting rope 5, thus ensuring the stability and reliability of the rope threading process.

[0033] The threading process of the threading device for a tote bag according to this application is as follows: After the bag body 4 is fitted onto the supporting block 22, the piston rods of the eight telescopic cylinders retract into the cylinder body, thereby causing the four moving platforms 322 to be positioned below the corresponding plug 51. Then, the user can drive the piston rods of the eight telescopic cylinders to extend out of the cylinder body, thereby driving the drive rod 323 to approach the supporting block 22. At this time, the drive rod 323 can first abut against the end wall of the waist-shaped hole near the receiving groove 221, and drive the two clamping plates 324 to approach the rope winding protrusion 3221 via the two connecting ropes 325, so that the two clamping plates 324 clamp the lifting rope 5 in the rope clamping gap. Then, when the two clamping plates 324 abut against the bag body 4 on the supporting block 22, the plugs 51 of the two lifting ropes 5 are inserted into the receiving groove 221 through the corresponding mounting holes 41. The user can then drive the piston rods of all eight telescopic cylinders to retract a certain distance from the cylinder body. At this time, each clamp 324 will release the corresponding lifting rope 5, allowing the user to remove the bag 4 with the lifting rope 5 threaded on it from the bag support block 22. Compared with the existing technology where the threading of the ropes on the tote bag mainly relies on manual operation, this device can automatically complete the threading process of the tote bag, avoiding problems such as low efficiency, inaccurate threading position, and inconsistent knot tightness of manual threading, improving threading efficiency and product consistency, while reducing labor costs.

[0034] Based on the structure of the above-mentioned rope threading device for tote bags, the second aspect of this application also provides a method for using the rope threading device for tote bags. The method is implemented using the above-mentioned rope threading device for tote bags. The method specifically includes: S1, firstly, inserting a stack of lifting ropes 5 into the rope storage box 312, then compressing the compression spring 3272 by tightening the adjusting bolt 3271, and then pushing the abutment 3274 to press against the guide rail 321 through the slide rod 3273, so as to increase the sliding friction between the moving platform 322 and the guide rail 321, ensuring that the moving platform 322 will move along the guide rail 321 under the drive of the driving member 33 after the clamping plate 324 clamps the lifting rope 5. S2. First, place a bag body 4 on the bag support block 22 and align the mounting hole 41 on the bag body 4 with the opening of the receiving groove 221. Then, start the drive unit 33 to drive the drive rod 323 to move. Stop the drive unit 33 when the end of the lifting rope 5 passes through the mounting hole 41 on the bag body 4 and is inserted into the receiving groove 221. If the end of the lifting rope 5 is not inserted deep enough into the mounting hole 41 on the bag body 4 (i.e., the plug 51 has not completely passed through the mounting hole 41), control the drive unit 33 to drive the moving table 322 to first move back a distance away from the receiving groove 221 along the guide rail 321. Then, control the drive unit 33 to drive the moving table 322 to move closer to the receiving groove 221 again to push the end of the lifting rope 5 into the receiving groove 221. S3. When the end of the lifting rope 5 is inserted deep enough into the mounting hole 41 on the bag body 4, first stop the drive unit 33, then remove the bag body 4 with the lifting rope 5 on it from the bag support block 22, and then control the drive unit 33 to drive the moving table 322 away from the receiving groove 221 along the guide rail 321 until the rope clamping gap is repositioned to be directly below the clearance notch 3121 and then stop. S4. Repeat steps S2 and S3 until the lifting rope 5 in the rope storage box 312 is used up.

[0035] By adopting the above technical solution, the rope threading device utilizes the friction-enhancing component 327 to increase the sliding friction between the moving platform 322 and the guide rail 321, ensuring that the moving platform 322 only moves after the clamping plate 324 clamps the lifting rope 5, thus preventing rope threading failure due to the lifting rope 5 not being clamped properly. During the rope threading process, if the lifting rope 5 is not inserted deep enough into the mounting hole 41, the moving platform 322 can be controlled to retract and then advance, ensuring that the lifting rope 5 passes through the mounting hole 41 accurately and to the appropriate depth. Compared with the existing technology where rope threading for tote bags mainly relies on manual operation, this method improves rope threading efficiency, solves the problem of low efficiency in manual rope threading, avoids fatigue caused by long-term repetitive work by workers, solves problems such as inaccurate rope threading position and inconsistent knot tightness caused by manual rope threading, improves product consistency and quality, and reduces labor costs.

[0036] Since the method of using the drawstring threading device for tote bags in this application adopts the aforementioned drawstring threading device for tote bags, it can also have all the technical effects of the aforementioned drawstring threading device for tote bags. In particular, this method of using the drawstring threading device utilizes the friction-enhancing component 327 to increase the sliding friction between the moving platform 322 and the guide rail 321, ensuring that the moving platform 322 only moves after the clamping plate 324 clamps the drawstring 5, thus avoiding failure to thread the drawstring due to the drawstring 5 not being clamped properly. During the threading process, if the drawstring 5 is not inserted deep enough into the mounting hole 41, the moving platform 322 can be controlled to retract and then advance, ensuring that the drawstring 5 can pass through the mounting hole 41 accurately and to the appropriate depth. Compared with the prior art where drawstring threading of tote bags mainly relies on manual operation, this method improves the threading efficiency, solves the problem of low efficiency in manual threading, avoids fatigue caused by long-term repetitive work by workers, solves the problems of inaccurate threading position and inconsistent knot tightness caused by manual threading, improves product consistency and quality, and reduces labor costs.

[0037] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A drawstring threading device for a tote bag, used to thread a drawstring (5) into a mounting hole (41) drilled on the bag body (4), characterized in that: Includes a workbench (1), a bag support assembly (2), and a rope threading assembly (3). The bag support assembly (2) is disposed on the workbench (1) and has a receiving groove (221). The top of the receiving groove (221) extends to the top of the bag support assembly (2) and forms an opening. The bag support assembly (2) can open the bag mouth of the bag body (4) and make the mounting hole (41) face the opening of the receiving groove (221). The rope-threading assembly (3) includes a rope storage unit (31), a rope clamping unit (32), and a driving member (33). The rope storage unit (31) is located on one side of the support bag assembly (2) and can store the lifting rope (5). A rope outlet is formed on the side of the rope storage unit (31) near the receiving groove (221). One end of the lifting rope (5) extends out of the rope storage unit (31) through the rope outlet. The driving member (33) is connected to the rope clamping unit (32) and can drive the rope clamping unit (32) to clamp the rope at the rope outlet and the receiving groove (221). The device moves back and forth between the two locations. When the rope clamping unit (32) approaches the receiving groove (221) from the rope outlet, the rope clamping unit (32) can clamp and drive the lifting rope (5). When the rope clamping unit (32) is in contact with the bag body (4) on the bag support assembly (2), the lifting rope (5) on the rope clamping unit (32) can pass through the mounting hole (41) and be inserted into the receiving groove (221). When the rope clamping unit (32) moves away from the receiving groove (221), the rope clamping unit (32) can release the lifting rope (5).

2. The drawstring device for a tote bag according to claim 1, characterized in that: The bag support assembly (2) includes a support rod (21) and a bag support block (22) adapted to the bag body (4). The bottom end of the support rod (21) is connected to the table surface of the workbench (1), and the top end of the support rod (21) is connected to the bottom end of the bag support block (22). The receiving groove (221) is opened on the bag support block (22), and the top end of the receiving groove (221) extends to the top of the bag support block (22) and forms an opening. The bag body (4) can be covered on the bag support block (22).

3. The drawstring device for a tote bag according to claim 1, characterized in that: The rope storage unit (31) includes a mounting base (311) and a rope storage box (312). The mounting base (311) is located on the workbench (1), and the rope storage box (312) is located on the mounting base (311). The rope storage box (312) is adapted to store a stack of lifting ropes (5) in a vertical direction. The rope storage box (312) has a rope outlet at a position near the bottom wall on its inner side wall, and the lifting rope (5) can pass through the rope outlet and leave the rope storage box (312).

4. The drawstring device for a tote bag according to claim 3, characterized in that: The outer wall of the rope storage box (312) is provided with a clearance notch (3121) leading into the rope storage box (312). When the lifting rope (5) is at the bottom of the rope storage box (312), one end of the lifting rope (5) passes through the clearance notch (3121) and extends out of the rope storage box (312) and can be connected to the rope clamping unit (32).

5. A drawstring threading device for a tote bag according to claim 4, characterized in that: The rope clamping unit (32) includes a guide rail (321), a movable platform (322), a drive rod (323), a pair of clamping plates (324), and a pair of connecting ropes (325). One end of the guide rail (321) is located below the clearance notch (3121), and the other end of the guide rail (321) extends towards the receiving groove (221). The movable platform (322) is mounted on the guide rail (321) and can slide along the guide rail (321). A waist-shaped hole is formed on the side wall of the movable platform (322) along the length direction of the guide rail (321). The drive member (33) and the drive rod ( One end of the drive rod (323) is connected to the drive rod (323), and the other end of the drive rod (323) is inserted into the waist-shaped hole and can slide along the waist-shaped hole. A clamping groove is provided on the top wall of the moving platform (322) along the width direction of the guide rail (321). The clamping groove is located between the rope storage box (312) and the waist-shaped hole, and a rope winding protrusion (3221) is formed in the middle of the bottom wall of the clamping groove. A rope clamping gap suitable for accommodating the lifting rope (5) is formed between the top ends of the two clamping plates (324). The bottom ends of the two clamping plates (324) are inserted into the clamping groove with the rope winding protrusion (3221) as the center. All can slide along the clamping groove. A connecting hole leading to the waist-shaped hole is provided on the side wall of the clamping groove. Each connecting rope (325) corresponds to one of the clamping plates (324). One end of each connecting rope (325) is connected to the corresponding clamping plate (324), and the other end of each connecting rope (325) extends towards the rope-winding protrusion (3221) and passes through the connecting hole after passing around the rope-winding protrusion (3221) to connect with the driving rod (323). When the driving member (33) drives the driving rod (323) closer to the receiving groove (221), the driving rod (323)... The two clamping plates (324) are driven by the two connecting ropes (325) to approach the rope-winding protrusion (3221) so that the two clamping plates (324) clamp the lifting rope (5) in the rope clamping gap. When the driving member (33) drives the driving rod (323) away from the receiving groove (221), the driving rod (323) can first abut against the wall of the end of the waist-shaped hole away from the receiving groove (221) and cause the two clamping plates (324) to release the lifting rope (5) in the rope clamping gap.

6. The drawstring device for a tote bag according to claim 5, characterized in that: Each of the clamping plates (324) is provided with a tension spring (326) between the side of the clamping plate (324) facing away from the rope-winding protrusion (3221) and the side wall of the clamping groove.

7. A drawstring threading device for a tote bag according to claim 5, characterized in that: The rope clamping unit (32) also includes a friction enhancer (327). The moving platform (322) has a track groove adapted to the guide rail (321). The friction enhancer (327) is provided on the groove wall of the track groove and can increase the friction between the moving platform (322) and the guide rail (321).

8. A drawstring threading device for a tote bag according to claim 7, characterized in that: The friction enhancer (327) includes an adjusting bolt (3271), a compression spring (3272), a sliding rod (3273), and an abutment (3274). An adjusting screw hole leading to the track groove is provided on the outer side wall of the moving platform (322). The adjusting bolt (3271) is screwed into the adjusting screw hole, and a sliding hole is provided on the screw end of the adjusting bolt (3271). One end of the sliding rod (3273) is inserted into the sliding hole and can slide along the sliding hole. The other end of the sliding rod (3273) is connected to the abutment (3274). The side of the abutment (3274) away from the sliding rod (3273) abuts against the guide rail (321). The compression spring (3272) is located between the abutment (3274) and the adjusting bolt (3271).

9. A drawstring device for a tote bag according to claim 5, characterized in that: The driving component (33) is a telescopic cylinder, the cylinder body of which is arranged along the length direction of the guide rail (321), and the piston rod of the telescopic cylinder is connected to the driving rod (323).

10. A method of using a drawstring device for a tote bag, implemented using the drawstring device for a tote bag as described in claim 8, characterized in that, include: S1. First, load a stack of lifting ropes (5) into the rope storage box (312). Then, compress the compression spring (3272) by tightening the adjusting bolt (3271). Then, push the abutment (3274) against the guide rail (321) through the slide rod (3273) to increase the sliding friction between the moving platform (322) and the guide rail (321). This ensures that the moving platform (322) will move along the guide rail (321) under the drive of the driving member (33) after the lifting rope (5) is clamped by the clamping plate (324). S2. First, install one of the bag bodies (4) onto the bag support assembly (2) and make the mounting hole (41) on the bag body (4) face the opening of the receiving groove (221). Then, start the drive unit (33) to drive the drive rod (323) to move. When the end of the lifting rope (5) passes through the mounting hole (41) on the bag body (4) and is inserted into the receiving groove (221), stop the drive unit (33). If the end of the lifting rope (5) is not inserted deep enough into the mounting hole (41) on the bag body (4), control the drive unit (33) to drive the moving platform (322) to first move back a distance away from the receiving groove (221) along the guide rail (321). Then, control the drive unit (33) again to drive the moving platform (322) to move closer to the receiving groove (221) so as to push the end of the lifting rope (5) into the receiving groove (221) again. S3. When the end of the lifting rope (5) is inserted deep enough into the mounting hole (41) on the bag body (4), first stop the driving member (33), then remove the bag body (4) with the lifting rope (5) on it from the bag support assembly (2), and then control the driving member (33) to drive the moving platform (322) away from the receiving groove (221) along the guide rail (321) until the rope clamping gap is repositioned to directly below the clearance notch (3121) and then stop. S4. Repeat steps S2 and S3 until the lifting rope (5) in the rope storage box (312) is used up.

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