Full-automatic ton bag handle sewing machine

Abstract

This utility model discloses a fully automatic ton bag handle sewing machine, relating to a sewing device. It includes an electric sewing machine and a bag support frame; the bag support frame is installed below the table of the electric sewing machine; a slide rail A and a ball screw A are suspended below the table; the bag support frame is constrained on the slide rail A and fixedly connected to the nut of the ball screw A; the bag support frame also has a bag support roller and a bag support motor; the bag support motor drives the bag support roller to rotate. This utility model achieves fully automatic sewing of ton bag handles through the coordinated work of the bag support frame, the tape feeding frame, the tape output component, and the tape breaking component, significantly improving production efficiency and sewing quality.

Description

Technical Field

[0001] This utility model relates to a sewing equipment, specifically a fully automatic ton bag handle sewing machine, used to efficiently and automatically complete the sewing of ton bag handles. Background Technology

[0002] BOOM (Monthly Intermediate Bulk Container) bags are widely used for transporting and storing bulk materials, and the sewing of their handles is a crucial step in the production process. Traditional BOOM bag handle sewing mainly relies on manual operation, resulting in low efficiency, high labor intensity, and inconsistent sewing quality. While some semi-automatic sewing equipment exists, manual assistance is still required for loading, unloading, and position adjustment, preventing fully automated production. Therefore, there is an urgent need for equipment capable of automatically sewing BOOM bag handles to improve production efficiency and quality. Utility Model Content

[0003] This utility model provides a fully automatic ton bag handle sewing machine. Through the coordinated work of the bag support frame, the tape feeding frame, the tape output component and the tape breaking component, the fully automatic sewing of the ton bag handle is realized, which significantly improves production efficiency and sewing quality.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A fully automatic ton bag handle sewing machine includes an electric sewing machine and a bag support frame;

[0006] The bag support frame is installed below the table of the electric sewing machine; a slide rail A and a ball screw A are suspended below the table; the bag support frame is constrained on the slide rail A and is fixedly connected to the nut of the ball screw A.

[0007] The support frame is also equipped with a support roller and a support motor; the support motor drives the support roller to rotate.

[0008] Furthermore, the support roller, slide rail, and ball screw A are parallel to each other.

[0009] Furthermore, four support rollers are provided, which are respectively connected by bearings at the four edges of the support frame;

[0010] The two packing rollers located at the top of the packing frame are in the same plane as the table.

[0011] The support motor drives one of the support rollers to rotate.

[0012] Furthermore, both ends of the ball screw A are connected to the bearings of the lifting block below the platform, and the screw motor installed at the bottom of the platform is connected to one end of the screw of the ball screw A to drive the ball screw A to rotate.

[0013] Furthermore, it also includes a belt feeder and a belt exit assembly;

[0014] The electric sewing machine has a drive device at the top of the machine head, and the output end of the drive device is perpendicular to the table surface; the bottom of the tape feed frame is fixed to the output end of the drive device, and the drive device drives the tape feed frame to rotate.

[0015] The tape feed assembly is located in the area between the table and the head of the electric sewing machine, and the tape feed assembly is connected to one end of the tape feed frame above it via a side plate.

[0016] Furthermore, the tape output assembly includes a roller support and two tape output rollers, wherein the roller support is fixedly connected to the side plate;

[0017] Both output rollers are mounted on the roller support by means of bearing connection, and both output rollers are parallel to the platform; the output motor is mounted on the side plate or roller support, and the output end of the output motor is connected to one of the output rollers.

[0018] Furthermore, the tape feeder has two opposing upright plates; each upright plate is provided with a tape roll mounting groove extending inward from one side of the upright plate and passing through it, and the two tape roll mounting grooves are mirror symmetrical.

[0019] Furthermore, it also includes a tape breakage assembly; the tape breakage assembly is installed at the front of the machine head;

[0020] The tape breaking assembly includes a tape breaking resistance wire and a ball screw B; a slide rail B perpendicular to the table is provided in front of the machine head; the ball screw B is arranged parallel to the slide rail B; the tape breaking resistance wire is located on the nut of the ball screw B.

[0021] Furthermore, a window is provided on the platform; a broken resistance wire is provided directly below the window; the broken resistance wire is hinged to the edge of the window via an arc beam, and has the freedom to extend out of or retract into the window.

[0022] Furthermore, the support frame is equipped with a stop block; when the stop block is against the lower part of the arc-shaped beam, the broken resistance wire is located outside the window and cuts the sewing thread on the machine head.

[0023] This utility model's fully automatic ton bag handle sewing machine achieves efficient and precise ton bag handle sewing through optimized structural design and automated control, and has the following significant advantages:

[0024] 1. Improve production efficiency and achieve fully automated operation.

[0025] Reduced manual intervention: Traditional ton bag handle sewing relies on manual handling, positioning and sewing, while this utility model achieves automatic positioning of ton bags, conveying of handle straps, sewing and cutting through the coordinated work of bag support frame, strap feeding frame, strap breaking component and wire breaking resistance wire, greatly reducing manual operation and improving production efficiency.

[0026] Continuous production: The bag support frame can move along slide rail A and ball screw A, and in conjunction with the rotation of the bag support roller, the ton bag can automatically adjust its position during the sewing process, realizing continuous sewing, which is suitable for mass production.

[0027] 2. Improve sewing precision to ensure product quality.

[0028] Precise positioning: The four support rollers on the bag support frame (the top two of which are flush with the table) ensure that the ton bag remains stable during the sewing process, avoiding deviation or wrinkles and improving sewing accuracy.

[0029] Uniform tape feeding: The tape feeding assembly uses two parallel tape feeding rollers driven by a tape feeding motor to ensure smooth tape feeding, avoid tape jamming or uneven tension, and improve sewing quality.

[0030] Automatic tape / thread cutting: The tape cutting component uses a ball screw B to drive the resistance wire to precisely cut the handle tape. The thread cutting resistance wire extends out of the window to cut the sewing thread under the action of the support block of the bag frame, reducing manual labor and avoiding errors or thread residue caused by manual thread cutting.

[0031] 3. Reduce labor intensity and improve the working environment

[0032] Reduced operational complexity: The belt feeder can be rotated and its angle adjusted, and the belt delivery assembly automatically feeds the handle belt. Workers only need to place the ton bag and replenish the belt roll, making operation simpler.

[0033] Safe and reliable: Both broken tape and broken wire are cut using automated resistance wire cutting, avoiding the injuries that workers may cause by using scissors or knives.

[0034] 4. Compact structure and strong adaptability

[0035] Modular design: The support frame, belt feeder, belt exit assembly, and belt breakage assembly are all modularly installed, which facilitates maintenance and replacement.

[0036] Space-saving: The support frame is installed below the table, and the belt feeding frame and belt output assembly are integrated near the machine head. The overall structure is compact and suitable for factory production line layout.

[0037] 5. Energy-saving and environmentally friendly, reducing production costs.

[0038] High-efficiency motor drive: The support motor, lead screw motor, and belt output motor are all electrically controlled, which consumes less energy and operates more stably compared with traditional pneumatic or hydraulic systems.

[0039] Reduce waste: The tape cutting assembly precisely cuts the handle tape, avoiding waste caused by manual cutting and reducing material loss.

[0040] Reduce rework rate: Automated sewing reduces human error, improves product qualification rate, and reduces rework costs caused by poor sewing.

[0041] Summarize

[0042] This utility model of a fully automatic ton bag handle sewing machine achieves efficient and precise sewing of ton bag handles through automated structural design and control. It has significant advantages such as high production efficiency, stable sewing quality, low labor intensity, and strong adaptability. It is suitable for large-scale industrial production and can be widely used in the ton bag manufacturing industry. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0044] Figure 2 A schematic diagram showing the connection between the support frame and the platform;

[0045] Figure 3 This is a structural diagram of the lower surface of the platform;

[0046] Figure 4 This is a schematic diagram of the connection structure between the belt feeder and the belt output assembly;

[0047] Figure 5 This is a schematic diagram of the operation of the tape breakage assembly;

[0048] Figure 6 This is a schematic diagram of the connection structure between the n-type support and the resistance wire in the broken band assembly;

[0049] Figure 7 This is a schematic diagram of the installation structure of a broken resistance wire.

[0050] Figure 8 This is a structural diagram of the belt assembly.

[0051] In the diagram: 1. Belt roll, 2. Belt break assembly, 3. Support roller, 4. Support frame, 5. Ball screw A, 51. Screw of ball screw A, 52. Nut of ball screw A, 6. Belt delivery assembly, 7. L-shaped support, 8. Head of electric sewing machine, 9. Belt feed frame, 10. Belt roll mounting slot, 11. Drive unit, 12. Side plate, 13. Lifting block (bearing seat), 14. Platform, 15. Screw motor, 16. Slide rail A, 17. Lifting motor, 181. Screw of ball screw B, 182. Nut of ball screw B, 19. Slide rail B, 20. N-shaped bracket, 21. Window, 22. Abutment block, 23. Arc beam, 24. Belt delivery roller. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0053] Reference Figures 1 to 8 This embodiment adopts a three-layer three-dimensional layout: "top-middle-bottom".

[0054] Upper layer: Electric sewing machine head and its operating platform

[0055] Middle layer: Belt feeding system (belt feeder + belt exit assembly)

[0056] Lower layer: Ton bag support system (bag support frame + drive mechanism)

[0057] A stable workspace is formed between each layer. The sewing machine head is located at the right rear of the equipment, forming an L-shaped work area with the operating table.

[0058] The entire bag support system is suspended directly below the platform, and the support frame is connected to the bottom of the platform via lifting blocks. Connection method:

[0059] Slide rail A: Two rails are provided, both parallel to the long side of the table and installed on the lower surface of the table (front and back direction).

[0060] Ball screw A: Located in the middle of the two slide rails A, the slider on the top of the support frame cooperates with slide rail A, and the nut of ball screw A, which is fixedly connected to the support frame, is threadedly connected to the screw of ball screw A. Ball screw A is connected to the platform via a lifting block located on the lower surface of the platform; both ends of the screw of ball screw A are connected to the corresponding lifting block via bearings.

[0061] The ball screw motor installed at the bottom of the platform drives the ball screw A to rotate around its own central axis, which in turn drives the nut to move back and forth, and further drives the support frame to move back and forth. The two slide rails A mainly serve as constraints to prevent the support frame from rotating.

[0062] The packing support frame is a square truss with four packing support rollers. These include two top rollers, flush with the platform surface and positioned near the left and right edges of the platform, and two bottom rollers, located directly below the top two rollers, forming the four protruding edges of the square truss. A packing support motor mounted on the square truss drives one of the top packing support rollers to rotate. The surface of the packing support roller is covered with polyurethane material, and the polyurethane material has anti-slip textures.

[0063] The belt feeding system consists of two parts: the belt feeding assembly and the belt output assembly.

[0064] The tape feeding assembly includes a tape roll and a tape feeding frame, with the tape roll mounted on the frame and rotating together with it. Since a purchased electric sewing machine is used, the drive unit cannot be directly installed on the machine head. Therefore, an L-shaped support extends from the machine table or frame. One end of the L-shaped support is fixedly connected to the frame or table, and the other end is located at the top of the machine head. For stability, the L-shaped support can be fixedly connected to the machine head with screws. A drive unit, including a drive motor and a reducer, is installed on top of the L-shaped support. The output end of the reducer faces upwards, and the tape feeding frame is installed at the output end of the reducer. When the drive motor is powered on, the tape feeding frame is driven to rotate by the reducer. The tape feeding frame consists of a horizontal support and two vertical plates, both mounted opposite each other at one end of the horizontal support. The tape roll is installed between the two vertical plates. To facilitate tape roll installation, tape roll mounting slots extending inwards from one side of the vertical plates and running horizontally through the machine are provided on both vertical plates. The two tape roll mounting slots are mirror-symmetrical. The rotating pin at the center of the roll slides in from one side of the vertical plate and is embedded in the roll mounting groove, after which it can rotate freely within the roll mounting groove.

[0065] The tape delivery assembly should be positioned directly below the sewing needle on the machine head. After the tape is delivered, it should fall directly beneath the needle for easy sewing. The tape delivery assembly is supported by a roller support; two delivery rollers are arranged parallel to each other and mounted on the roller support via bearing connections. After the tape comes off the tape roll, it is guided out between the two delivery rollers. A tape delivery motor is mounted on the roller support, and its output is connected to one of the delivery rollers to provide power for tape delivery. Since the tape roll is mounted directly above the machine head, the tape should generally be positioned behind the sewing needle after delivery. This separation between the tape roll and the tape delivery assembly due to the machine head necessitates a side plate. The side plate is perpendicular to the worktable, with its top fixedly connected to one side of the other end of the transverse support and its bottom connected to one side of the roller support.

[0066] To further automate the design process, manual wire and tape breaking will no longer be required. Instead, tape breaking and wire breaking will be implemented separately by designing tape breaking components and wire breaking components.

[0067] The L-shaped support extends outward from the top of the machine head, and the tape-breaking assembly is installed at the extended end of the L-shaped support at the top of the machine head. The tape-breaking assembly consists of a ball screw B, a slide rail B, a breaking resistance wire, and an n-shaped bracket supporting the resistance wire. The slide rail B is perpendicular to the table surface, with one top end fixedly connected to the extended end of the L-shaped support. The ball screw B and the slide rail B are parallel to each other, and both ends of the ball screw B are connected to the slide rail via corresponding bearing seats. One side of the nut of the ball screw B is located in the slide rail B and can slide along the slide rail B; the other side is connected to the n-shaped bracket, and both ends of the breaking resistance wire are clamped onto the n-shaped bracket. Applying voltage to the breaking resistance wire causes it to heat up, cutting the tape and preventing burrs from forming. The ball screw B is driven by a lifting motor mounted on the L-shaped support.

[0068] The thread-breaking assembly is located closer to the sewing needle position at the machine head than the tape-breaking assembly. A window is opened on the worktable; a thread-breaking resistance wire is positioned directly below the window; the resistance wire can extend or retract through the window. The extension and retraction of the window can be achieved using existing technologies such as electric telescopic rods, pneumatic telescopic rods, or reciprocating motors. However, regardless of the implementation, a new power structure is required. To minimize the addition of a new power structure, this embodiment is designed as follows:

[0069] The broken resistance wire is hinged to the edge of the window via an arc-shaped beam, normally located below the window. When the wire needs to be cut, the arc-shaped beam rotates upwards along its hinge point, extending the broken resistance wire and disconnecting it. The rotational power of the arc-shaped beam comes from a support frame. A stop block is installed at a corresponding position on the support frame. The stop block moves with the support frame; when the support frame reaches the corresponding position, the stop block presses against the arc-shaped beam, and the support frame continues to move, causing the arc-shaped beam to rotate.

[0070] or

[0071] Magnet A is installed below the broken resistance wire. Magnet A is connected to the broken resistance wire via a sliding bracket (which only has the freedom of vertical movement) or a hinged bracket (considered an arc beam). Another magnet B is installed in the corresponding position on the support frame. As the support frame moves, magnet B gradually approaches magnet A. Due to the principle of like poles repelling each other, the sliding bracket moves upward, causing the broken resistance wire to extend out of the window. After magnet B moves away from magnet A, it falls back into the window due to its own gravity.

[0072] In this embodiment, there is also a design to make the production of ton bags more convenient, such as: setting a brush head between the sewing needle and the tape delivery assembly, with the brush head pressed against the upper surface of the tape to smooth the tape and prevent crooked sewing.

[0073] The sewing logic is as follows:

[0074] Step 1, Equipment Preparation Stage

[0075] The operator opens the ton bag opening and places it on the bag support frame, ensuring the bag opening is fully supported by the four top support rollers. The handle belt roll is then inserted into the belt roll mounting slot of the belt feed frame, with the front end of the belt passing through the belt exit assembly. The belt is manually pulled to the sewing start position (directly below the needle), and the equipment is started. All motors return to zero, and the PLC begins operation.

[0076] Step 2. Automated sewing process

[0077] The lead screw motor drives the ball screw A to rotate, causing the support frame to move backward along the slide rail A until it reaches the sewing start point. The drive unit adjusts the angle of the feed frame, and the upright plate drives the feed assembly to deflect synchronously, ensuring that the feed outlet is aligned with the sewing point. The feed motor starts, and the two feed rollers clamp and feed the handle belt. After the belt is shaped by the brush head, it is fed at a constant speed to below the sewing needle. The sewing machine head starts, and the support frame continues to move, sewing according to the preset stitch.

[0078] After sewing one end of the handle strap, the drive device rotates the feed frame 180° to sew the other end of the handle strap.

[0079] After sewing is completed, ball screw B drives the broken resistance wire to move downwards. Once the resistance wire contacts the tape and melts, it immediately returns to its initial position. The support frame continues to move forward, and the abutment on the frame contacts the lower end of the curved beam, pushing the broken resistance wire upwards and out of the window. The high-temperature resistance wire instantly melts and sewn the thread. The support frame returns to its initial position, and the broken resistance wire falls back down due to gravity.

[0080] Step 3: Finished Product Processing Stage

[0081] The operator removes the sewn ton bag from the bag support frame, checks the strength of the handle stitches and the quality of the stitches, and prepares for the next cycle.

[0082] It should be noted that the above description is merely a preferred application example of this utility model and is not intended to limit the scope of protection of this utility model. All technical solutions employing equivalent substitutions or equivalent transformations are within the scope of protection of this utility model.

Claims

1. A fully automatic ton bag handle sewing machine, comprising an electric sewing machine; characterized in that, It also includes bag support frames; The bag support frame is installed below the table of the electric sewing machine; a slide rail A and a ball screw A are suspended below the table; the bag support frame is constrained on the slide rail A and is fixedly connected to the nut of the ball screw A; The support frame is also equipped with a support roller and a support motor; the support motor drives the support roller to rotate.

2. The fully automatic ton bag handle sewing machine according to claim 1, characterized in that, The support roller, slide rail, and ball screw A are parallel to each other.

3. The fully automatic ton bag handle sewing machine according to claim 1, characterized in that, The support rollers are provided in four positions, which are respectively connected by bearings at the four edges of the support frame; The two packing rollers located at the top of the packing frame are in the same plane as the table. The support motor drives one of the support rollers to rotate.

4. The fully automatic ton bag handle sewing machine according to claim 1, characterized in that, Both ends of the ball screw A are connected to the bearings of the lifting block below the platform, and the screw motor installed at the bottom of the platform is connected to one end of the screw of the ball screw A to drive the ball screw A to rotate.

5. The fully automatic ton bag handle sewing machine according to claim 1, characterized in that, It also includes a tape feeder and a tape output assembly; The electric sewing machine has a drive device at the top of the machine head, and the output end of the drive device is perpendicular to the table surface; the bottom of the tape feed frame is fixed to the output end of the drive device, and the drive device drives the tape feed frame to rotate. The tape feed assembly is located in the area between the table and the head of the electric sewing machine, and the tape feed assembly is connected to one end of the tape feed frame above it via a side plate.

6. The fully automatic ton bag handle sewing machine according to claim 5, characterized in that, The tape output assembly includes a roller support and two tape output rollers, wherein the roller support is fixedly connected to the side plate; Both output rollers are mounted on the roller support by means of bearing connection, and both output rollers are parallel to the platform; the output motor is mounted on the side plate or roller support, and the output end of the output motor is connected to one of the output rollers.

7. The fully automatic ton bag handle sewing machine according to claim 5, characterized in that, The tape feeder has two opposing upright plates; each upright plate has a tape roll mounting groove extending inward from one side of the upright plate and passing through it, and the two tape roll mounting grooves are mirror symmetrical.

8. The fully automatic ton bag handle sewing machine according to claim 5, characterized in that, It also includes a tape breakage assembly; the tape breakage assembly is mounted at the front of the machine head; The tape breaking assembly includes a tape breaking resistance wire and a ball screw B; a slide rail B perpendicular to the table is provided in front of the machine head; the ball screw B is arranged parallel to the slide rail B; the tape breaking resistance wire is located on the nut of the ball screw B.

9. The fully automatic ton bag handle sewing machine according to claim 1, characterized in that, A window is provided on the platform; a broken resistance wire is provided directly below the window; the broken resistance wire is connected to the edge of the window by an arc beam, and has the freedom to extend out of or retract into the window.

10. A fully automatic ton bag handle sewing machine according to claim 9, characterized in that, The support frame is equipped with a stop block; the broken resistance wire is hinged to the edge of the window through an arc beam; when the stop block is against the bottom of the arc beam, the broken resistance wire is outside the window and cuts the sewing thread on the machine head.

Images