A bag sewing mechanism

Abstract

The utility model discloses a kind of bag production sewing mechanism, it is related to bag production technical field, including mounting bracket, the left and right side of mounting bracket is uniformly connected with fixed frame by bolt fixation, the middle part of the outer side of fixed frame is uniformly connected with driving motor, the inner side of fixed frame is uniformly connected with screw rod of rotation, the outside of screw rod is uniformly connected with moving frame with thread, the front side of moving frame is uniformly connected with hydraulic clamping claw with fixed connection, the utility model is rotated by driving motor and drives screw rod, moving frame drives hydraulic clamping claw to automatically adjust position, replace manual handling adjustment, greatly promote the automation degree of bag sewing, by laser range finder real-time detection bag edge position and feedback data, control system is accordingly driving motor adjustment screw rod rotation, make hydraulic clamping claw accurate alignment edge sewing, avoid the problem of sewing misplacement caused by poor accuracy of artificial positioning, improve seam strength and quality consistency.

Description

Technical Field

[0001] This utility model relates to the field of container bag production technology, and in particular to a container bag production sewing mechanism. Background Technology

[0002] FIBCs (Flexible Intermediate Bulk Containers) are flexible, large-scale packaging containers made primarily of polymers such as polypropylene. They are characterized by large capacity, high strength, wear resistance, and foldability for recycling. They are widely used in the transportation of bulk materials in industries such as chemicals, building materials, grains, and minerals. Their core function is to achieve efficient containerized handling of goods while protecting them from external contamination. In the FIBC production process, sewing is a crucial step determining product quality. The bag body, straps, bottom, and other components must be tightly sewn together with thread to ensure tensile strength and sealing at the seams, preventing material leakage or cracking during transportation. Currently, FIBC sewing mainly relies on sewing equipment, but pre-sewing positioning, clamping, and position adjustment remain important aspects of the production process.

[0003] Currently, many small and medium-sized enterprises still rely on manual operation in the sewing process of FIBCs (Flexible Intermediate Bulk Containers). Workers manually move the FIBC blanks, adjust the sewing edges to align with the needle of the sewing device, and then start sewing by stepping on a pedal. This method is not only extremely inefficient but also prone to misalignment due to poor manual positioning, affecting seam strength. Furthermore, the weight of the FIBC blanks is significant, and repeated manual movement can lead to excessive labor intensity for workers, and prolonged operation can cause fatigue, further reducing the stability of sewing quality. In addition, traditional sewing devices lack the ability to adapt to different FIBC sizes; when changing specifications, manual recalibration of the sewing position is required, resulting in long adjustment times and difficulty adapting to flexible production needs. While some equipment is equipped with simple clamping structures, the clamping force is uncontrollable, easily causing damage to the bag material or loosening of the clamp, further affecting sewing accuracy. These problems severely restrict the production efficiency and product consistency of FIBCs, necessitating the design of a new FIBC production sewing mechanism to solve the aforementioned issues. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a FIBC (Flexible Intermediate Bulk Container) production sewing mechanism.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a container bag production sewing mechanism, including a mounting frame, the left and right sides of the mounting frame are fixedly connected to a fixing frame by bolts, a drive motor is fixedly connected to the middle of the outer side of the fixing frame, a threaded screw is rotatably connected to the inner side of the fixing frame, the rotating shaft of the drive motor passes through the fixing frame and is fixedly connected to the outer end of the threaded screw, a movable frame is threadedly connected to the outer side of the threaded screw, and a hydraulic clamping claw is fixedly connected to the front side of the movable frame;

[0006] A guide rod is provided on the front side of the mounting frame. The left and right ends of the guide rod are respectively fixedly connected to the inner side of the left and right fixed frames. The rear side of the movable frame is slidably connected to the upper part of the guide rod.

[0007] Furthermore, a rotating sleeve is fixedly connected to the middle of the mounting bracket, and the inner end of the threaded screw on both the left and right sides is rotatably connected to the left and right ends of the front side of the rotating sleeve.

[0008] Furthermore, rubber pads are fixedly connected to the clamping ends of the hydraulic clamping claws on both the left and right sides;

[0009] The mounting bracket has several connecting slots on both the upper and lower rear sides.

[0010] Furthermore, each of the movable frames is provided with a sliding block at its rear end, and the upper part of the guide rod is provided with a sliding groove, with each sliding block slidably connected to the inner side of the sliding groove.

[0011] Furthermore, a number of connecting rods are equidistantly arranged in the middle of the mounting frame, and the front and rear ends of the connecting rods are provided with threaded heads. The connecting rods pass through the mounting frame and the guide rod and are fixed with nuts.

[0012] Furthermore, a bearing seat is fixedly connected to the inner side of each of the fixed frames, and the outer end of each of the threaded screws is rotatably connected to the inner side of the corresponding bearing seat.

[0013] Furthermore, each of the fixed frames is fixedly connected to a connecting sleeve at the front center, and a laser rangefinder is provided on the inner side of each connecting sleeve. Each of the connecting sleeves is threadedly connected to a locking bolt at the front end, and a positioning chuck is provided on the outer side of the middle of each laser rangefinder.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. By driving the screw rod to rotate via a drive motor, the moving frame automatically adjusts the position of the hydraulic clamping claws, replacing manual handling and adjustment. This significantly improves the automation level of FIBC sewing, avoids the problems of low efficiency and high labor intensity of manual operation, and significantly improves production efficiency. 2. By using a laser rangefinder to detect the edge position of the FIBC in real time and provide feedback data, the control system drives the motor to adjust the rotation of the screw rod, ensuring that the hydraulic clamping claws are precisely aligned with the sewing edge. This avoids the sewing misalignment problem caused by poor positioning accuracy of manual operation, and improves the strength and quality consistency of the seams.

[0016] 2. By rotating the sleeve and bearing seat to provide stable support at both ends of the threaded screw, and with the guidance and constraint of the sliding block and sliding groove, the moving frame drives the hydraulic clamping claw to move smoothly, avoiding clamping deviation caused by the shaking of traditional structures, and ensuring the accuracy of the sewing position and the stability of equipment operation; the connecting groove provides a multi-position connection interface, and the connecting rod realizes the rigid fixation of the mounting frame and the guide rod and facilitates disassembly, so that the device can flexibly adapt to different production line layouts and different sizes of FIBCs, avoiding the problems of weak equipment adaptability and long debugging time for changing specifications, and improving flexible production capabilities. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the front three-dimensional structure of a FIBC (Flexible Intermediate Bulk Container) production and sewing mechanism.

[0018] Figure 2 This is a top view of a FIBC (Flexible Intermediate Bulk Container) sewing mechanism.

[0019] Figure 3 This is a three-dimensional exploded view of a sewing mechanism for producing FIBCs (Flexible Intermediate Bulk Containers).

[0020] Figure 4 This is a three-dimensional structural diagram of a moving frame and hydraulic clamping claws for a container bag production and sewing mechanism.

[0021] Figure 5 This is a three-dimensional structural diagram of a connecting sleeve and a laser rangefinder for a FIBC (Flexible Intermediate Bulk Container) production sewing mechanism.

[0022] In the diagram: 1. Mounting bracket; 2. Fixing bracket; 3. Drive motor; 4. Threaded screw; 5. Moving bracket; 6. Hydraulic clamping jaw; 7. Guide rod; 8. Rotating sleeve; 9. Rubber pad; 10. Connecting groove; 11. Sliding block; 12. Sliding groove; 13. Connecting rod; 14. Threaded head; 15. Bearing seat; 16. Connecting sleeve; 17. Laser rangefinder; 18. Locking bolt; 19. Positioning chuck. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-5This utility model provides a technical solution: a container bag production sewing mechanism, including a mounting frame 1, with a fixed frame 2 fixedly connected to the left and right sides of the mounting frame 1 by bolts, a drive motor 3 fixedly connected to the middle of the outer side of the fixed frame 2, and a threaded screw 4 rotatably connected to the inner side of the fixed frame 2, the shaft of the drive motor 3 passing through the fixed frame 2 and fixedly connected to the outer end of the threaded screw 4, a movable frame 5 threadedly connected to the outer side of the threaded screw 4, and a hydraulic clamping claw 6 fixedly connected to the front side of the movable frame 5;

[0025] A guide rod 7 is provided on the front side of the mounting bracket 1. The left and right ends of the guide rod 7 are fixedly connected to the inner side of the left and right fixed brackets 2, respectively. The rear side of the movable bracket 5 is slidably connected to the upper part of the guide rod 7.

[0026] A rotating sleeve 8 is fixedly connected to the middle of the mounting frame 1. The inner end of the left and right threaded screws 4 is rotatably connected to the front left and right ends of the rotating sleeve 8. The rotating sleeve 8 provides stable support to the inner end of the threaded screw 4 and cooperates with the outer bearing seat 15 to form a structure with both ends positioned, which greatly reduces the radial runout when the threaded screw 4 rotates at high speed, and ensures that the moving frame (5) moves smoothly along the screw axis, providing precise control for the clamping position of the container bag.

[0027] The clamping ends of the hydraulic clamping claws 6 on both sides are fixedly connected with rubber pads 9. By utilizing the elastic deformation characteristics of the rubber pads (9), the friction with the surface of the container bag can be increased to prevent the bag from slipping and shifting during clamping. It can also buffer the clamping force to prevent the container bag material from being crushed or torn due to rigid contact. While ensuring the reliability of clamping, it protects the integrity of the bag body and is suitable for container bag blanks with uneven thickness.

[0028] The upper and lower rear sides of the mounting frame 1 are provided with several connecting slots 10. The connecting slots 10 provide multi-position, adjustable connection interfaces, which can flexibly adjust the connection position between the mounting frame 1 and the container bag sewing equipment according to the layout requirements of different production lines, enhance the adaptability of the device to various production environments, and achieve rapid integration and docking.

[0029] Each of the rear ends of the movable frame 5 is provided with a sliding block 11, and the upper part of the guide rod 7 is provided with a sliding groove 12. The sliding blocks 11 are slidably connected to the inner side of the sliding groove 12. Through the interlocking sliding cooperation between the sliding blocks 11 and the sliding groove 12, an axial guiding constraint is formed on the movable frame 5 to avoid circumferential displacement when the movable frame rotates with the threaded screw 4, and to ensure that the movable frame 5 drives the hydraulic clamping claw 6 to move accurately along a straight line, thereby improving the consistency of the clamping position.

[0030] A number of connecting rods 13 are equidistantly arranged in the middle of the mounting frame 1. The front and rear ends of the connecting rods 13 are provided with threaded heads 14. The connecting rods 13 pass through the mounting frame 1 and the guide rod 7 and are fixed with nuts. The connecting rods 13 are detachably connected to the nuts through the threaded heads 14, so as to achieve rigid fixation between the mounting frame 1 and the guide rod 7. This not only facilitates disassembly, maintenance and component replacement, but also ensures that the equidistant distribution design makes the two bear the force evenly, avoids structural deformation caused by local stress concentration, enhances the overall structural stability of the device and extends its service life.

[0031] The inner side of the fixed frame 2 is fixedly connected to the bearing seat 15, and the outer end of the threaded screw 4 is rotatably connected to the inner side of the corresponding bearing seat 15. The bearing seat 15 provides high-precision rotational support for the outer end of the threaded screw 4. Together with the constraint of the inner end by the rotating sleeve 8, a stable support system is formed along the entire length, which significantly reduces the frictional resistance and vibration noise when the screw rotates, and improves the driving efficiency and the smoothness of equipment operation.

[0032] Each of the front-end centers of the fixing frame 2 is fixedly connected to a connecting sleeve 16. A laser rangefinder 17 is installed on the inner side of each connecting sleeve 16. A locking bolt 18 is threadedly connected to the front end of each connecting sleeve 16. A positioning chuck 19 is installed on the outer side of the center of each laser rangefinder 17. Through the precise positioning of the laser rangefinder 17 with the connecting sleeve 16 by the positioning chuck 19 and the firm fixation by the locking bolt 18, the laser rangefinder 17 can realize real-time detection of the movement position of the left and right hydraulic clamping claws 6, so as to control the spacing of the hydraulic clamping claws 6 and enable adaptive control of the edge position of FIBCs of different sizes. At the same time, the detachable structure facilitates the calibration and replacement of the laser rangefinder 17, ensuring accurate measurement data and providing a precise basis for the automatic alignment of the hydraulic clamping claws 6, which greatly improves the consistency of the sewing position.

[0033] Working principle: First, the mechanism is fixed to the FIBC sewing device or frame through the connecting groove 10 on the upper and lower rear sides of the mounting frame 1. The threaded heads 14 at both ends of the connecting rod 13 are used with nuts to rigidly connect the mounting frame 1 and the guide rod 7 to ensure the stability of the overall structure. At the same time, the laser rangefinder 17 on the fixed frame 2 is checked and fixed in the connecting sleeve 16 with locking bolts 18 after calibration by the positioning chuck 19 to ensure the distance measurement accuracy. Then, the equipment is started and the size parameters of the FIBC to be sewn are input. The laser rangefinder 17 detects the edge position of the FIBC to be processed in real time and transmits the data to the control system. The system calculates the required clamping distance of the hydraulic clamping claw 6 according to the size, providing a basis for precise adjustment. Next, the drive motor 3 starts after receiving the control signal. Its rotating shaft drives the threaded screw 4 to rotate. The inner end of the threaded screw 4 rotates stably in the rotating sleeve 8 and the outer end rotates stably in the bearing seat 15. At the same time, the sliding block 11 at the rear end of the moving frame 5 slides along the sliding groove 12 of the guide rod 7 to form an axial distance of approximately The system prevents the moving frame from shifting with the lead screw, allowing the left and right moving frames 5 to move synchronously towards or away from the hydraulic clamping claws 6, precisely adjusting them to the preset clamping position. Then, upon receiving a command, the hydraulic clamping claws 6 activate, with their rubber pads 9 contacting the surface of the FIBC (Flexible Intermediate Bulk Container) using elastic deformation to increase friction and prevent slippage. Simultaneously, it buffers the clamping force to prevent damage to the bag material, achieving stable and damage-free clamping of the FIBC. After clamping, the control system, based on real-time feedback from the laser rangefinder 17, drives the moving frame 5 to continue moving along the guide rod 7, precisely delivering the sewing edge of the FIBC to below the needle of the sewing equipment, ensuring that edge alignment errors are minimized. Finally, after the sewing equipment starts and completes the sewing, the hydraulic clamping claws 6 release, the drive motor 3 rotates in the opposite direction, and the moving frame 5 returns to its initial position, awaiting the next FIBC. This entire process is repeated cyclically, achieving automated, high-precision FIBC sewing operations, significantly improving production efficiency and sewing quality stability.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A container bag production and sewing mechanism, comprising a mounting frame (1), characterized in that, The mounting bracket (1) is fixedly connected to the left and right sides by bolts with a fixed bracket (2). The middle of the outer side of the fixed bracket (2) is fixedly connected with a drive motor (3). The inner side of the fixed bracket (2) is rotatably connected with a threaded screw (4). The shaft of the drive motor (3) passes through the fixed bracket (2) and is fixedly connected to the outer end of the threaded screw (4). The outer side of the threaded screw (4) is threadedly connected with a movable bracket (5). The front side of the movable bracket (5) is fixedly connected with a hydraulic clamping claw (6). The front side of the mounting bracket (1) is provided with a guide rod (7), and the left and right ends of the guide rod (7) are respectively fixedly connected to the inner side of the left and right fixed brackets (2). The rear side of the movable bracket (5) is slidably connected to the upper part of the guide rod (7).

2. The container bag production sewing mechanism according to claim 1, characterized in that: The mounting bracket (1) is fixedly connected to a rotating sleeve (8) in the middle, and the inner end of the threaded screw (4) on the left and right sides is rotatably connected to the left and right ends of the front side of the rotating sleeve (8).

3. The container bag production sewing mechanism according to claim 1, characterized in that: Rubber pads (9) are fixedly connected to the clamping ends of the hydraulic clamping claws (6) on both the left and right sides; The mounting bracket (1) has several connecting slots (10) on the upper and lower rear sides.

4. The container bag production sewing mechanism according to claim 1, characterized in that: Each of the movable frame (5) is provided with a sliding block (11) at its rear end, and the upper part of the guide rod (7) is provided with a sliding groove (12). The sliding blocks (11) are all slidably connected to the inner side of the sliding groove (12).

5. The container bag production sewing mechanism according to claim 1, characterized in that: The mounting frame (1) has several connecting rods (13) evenly spaced in the middle. The front and rear ends of the connecting rods (13) are provided with threaded heads (14). The connecting rods (13) pass through the mounting frame (1) and the guide rod (7) and are fixed with nuts.

6. The container bag production sewing mechanism according to claim 1, characterized in that: The inner side of each of the fixed frames (2) is fixedly connected to a bearing seat (15), and the outer end of each of the threaded screws (4) is rotatably connected to the inner side of the corresponding bearing seat (15).

7. The container bag production sewing mechanism according to claim 1, characterized in that: Each of the fixed frames (2) has a connecting sleeve (16) fixedly connected to the middle of its front end. Each of the connecting sleeves (16) has a laser rangefinder (17) installed on its inner side. Each of the connecting sleeves (16) has a locking bolt (18) threadedly connected to its front end. Each of the laser rangefinders (17) has a positioning chuck (19) installed on its outer side of its middle part.

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