Flexible freight bag stretching and sewing machine

Abstract

The utility model discloses a flexible freight bag stretching and sewing machine which comprises a machine frame, a sewing machine head is installed on the top of the machine frame, a working table is arranged below the sewing machine head, a driving mechanism is installed on one side of the working table, and a limiting mechanism is arranged at the position, located on the outer ring of a needle rod of the sewing machine head, of the sewing machine head. The flexible freight bags and the lacing wires can be accurately positioned in the sewing process, the feeding speed can be adjusted according to the requirement for the sewing speed through the arranged driving mechanism, constant-speed and stable feeding of the flexible freight bags and the lacing wires is achieved, and the sewing machine head can be used for sewing the flexible freight bags and the lacing wires by adjusting the rotating speed of a motor, replacing sewing needles of different models, adjusting parameters such as the stitch length and the like. The flexible freight bag and lacing wire sewing machine is simple in structure and suitable for the sewing requirements of flexible freight bags and lacing wires of different materials and thicknesses, further through the structure, sewing accuracy and continuity are guaranteed, the flexible freight bag and lacing wire sewing machine can be suitable for flexible freight bags and lacing wires of various materials and thicknesses, and sewing quality and production efficiency are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to packing equipment technical field, concretely is a kind of bag reinforcing rib sewing machine. BACKGROUND

[0002] As a kind of widely used in chemical industry, mineral, building material, food industry Large-scale flexible transport packaging container, its quality is crucial, reinforcing rib as the key structural component of bag, to enhance the overall strength of bag, load capacity and stability play a decisive role.

[0003] Traditional bag reinforcing rib sewing method has many deficiencies, artificial sewing efficiency is low, it is difficult to meet large-scale production demand, and sewing quality is uneven due to the difference of worker skill level, prone to uneven stitches, loose thread and other problems, and, the structure of part of existing sewing equipment is complex, high cost, maintenance difficulty is big, and the adaptability of different specifications bag and reinforcing rib is poor, cannot be flexibly adjusted to meet the diversified production demand, thus the need for design a kind of bag reinforcing rib sewing machine to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of bag reinforcing rib sewing machine to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of bag reinforcing rib sewing machine, including rack, the top of the rack is equipped with sewing head, the lower portion of the sewing head is equipped with workbench, the top of the workbench is equipped with sewing channel opposite the position of the needle bar of the sewing head, the top of the rack is equipped with driving mechanism for facilitating feeding in the side of the workbench, the sewing head is equipped with limiting mechanism for facilitating material position fixation in the position of its needle bar outer circle.

[0006] Preferably, the driving mechanism includes driving roller, the top of the rack is equipped with fixed shaft in the side of the workbench, the outer circle of the fixed shaft is equipped with sleeve, and is rotationally connected with the sleeve by torsional spring, one end of the sleeve is connected with connecting frame, the connecting frame is rotationally connected with rotating shaft in the position of one side near end, one end of the rotating shaft is connected with the output end of driving motor installed in the other side of the connecting frame, the outer circle of the rotating shaft is sleeved with two groups of driving rollers.

[0007] Preferably, the surface of two groups of driving rollers is equipped with antiskid line.

[0008] Preferably, the limiting mechanism includes a pressure plate, an electric telescopic rod is installed at one end of the sewing machine head, a lifting frame is connected to one end of the electric telescopic rod, a through groove is provided at the center of the lifting frame to facilitate the movement of the needle bar of the sewing machine head, connecting rods are slidably connected to the four corners of the lifting frame, one end of each of two adjacent sets of connecting rods is connected to the top of the corresponding pressure plate, the top of the pressure plate is connected to the bottom of the lifting frame through springs sleeved on the outer ring of the two sets of connecting rods, and multiple sets of rollers are rotatably connected to the bottom of each of the two sets of pressure plates.

[0009] Preferably, the suture head adopts a single-needle suture method and is equipped with a high-precision needle bar drive system.

[0010] Preferably, a tensioning plate is installed on the top of the sewing machine head, and two sets of guide rollers that restrict the movement direction of the tensioning plate are installed on one side of the sewing machine head.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, through its limiting mechanism, can precisely position the FIBC and reinforcing bars during the sewing process, ensuring the accuracy and stability of the sewing. Through its driving mechanism, the feeding speed can be adjusted according to the sewing speed requirements, achieving uniform and stable feeding of the FIBC and reinforcing bars, ensuring the continuity of the sewing process. After the sewing machine head is powered on, the motor drives the needle bar to reciprocate up and down. The needle on the needle bar passes through the sewing channel, carrying the thread through the FIBC and reinforcing bars to form a stitch. The sewing machine head can adapt to the sewing needs of FIBCs and reinforcing bars of different materials and thicknesses by adjusting parameters such as motor speed, changing different types of needles, and adjusting stitch length. Therefore, through the above structure, it ensures the accuracy and continuity of the sewing, adapts to FIBCs and reinforcing bars of various materials and thicknesses, and guarantees sewing quality and production efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0014] Figure 2 This is a bottom view of the present invention;

[0015] Figure 3 This is a side view and a top view of the present invention;

[0016] Figure 4 for Figure 2 Enlarged view of part A in the image;

[0017] Figure 5 for Figure 3 Enlarged view of part B in the image.

[0018] In the diagram: 1. Frame, 2. Sewing machine head, 3. Workbench, 4. Sewing channel, 5. Tie plate, 6. Fixed shaft, 7. Sleeve, 8. Torsion spring, 9. Connecting frame, 10. Rotating shaft, 11. Drive motor, 12. Drive roller, 13. Electric telescopic rod, 14. Lifting frame, 15. Through groove, 16. Connecting rod, 17. Pressure plate, 18. Spring, 19. Roller, 20. Guide roller. Detailed Implementation

[0019] 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.

[0020] Example 1

[0021] Please refer to Figures 1-5 As shown, this utility model provides a container bag reinforcement sewing machine, including a frame 1, a sewing head 2 installed on the top of the frame 1, a worktable 3 below the sewing head 2, a sewing channel 4 opened on the top of the worktable 3 directly opposite the needle bar of the sewing head 2, a drive mechanism for easy feeding is installed on the top of the frame 1 on one side of the worktable 3, and a limiting mechanism for easy material positioning is provided on the outer ring of the sewing head 2 at the position of its needle bar.

[0022] Specifically, the limiting mechanism allows for precise positioning of the FIBC and reinforcing bars during the sewing process, ensuring accuracy and stability. The drive mechanism adjusts the feeding speed according to sewing speed requirements, achieving uniform and stable feeding of the FIBC and reinforcing bars, guaranteeing continuity of the sewing process. After the sewing head 2 is powered on, the motor drives the needle bar in a reciprocating motion. The needle on the needle bar passes through the sewing channel 4, carrying the thread through the FIBC and reinforcing bars to form a stitch. The sewing head 2 can adapt to the sewing needs of FIBCs and reinforcing bars of different materials and thicknesses by adjusting parameters such as motor speed, changing needle types, and stitch length. Thus, the above structure ensures sewing accuracy and continuity, adapting to various materials and thicknesses of FIBCs and reinforcing bars, guaranteeing both sewing quality and production efficiency.

[0023] The drive mechanism includes drive rollers 12. A fixed shaft 6 is located on one side of the worktable 3 at the top of the frame 1. A sleeve 7 is fitted around the outer ring of the fixed shaft 6 and is rotatably connected to the sleeve 7 via a torsion spring 8. A connecting frame 9 is connected to one end of the sleeve 7. A rotating shaft 10 is rotatably connected to one side of the connecting frame 9 near its end. One end of the rotating shaft 10 is connected to the output end of a drive motor 11 mounted on the other side of the connecting frame 9. Two sets of drive rollers 12 are fitted around the outer ring of the rotating shaft 10. By starting the drive motor 11, its output end can drive the rotating shaft 10 to rotate synchronously. The rotation of the rotating shaft 10 can directly drive the two sets of drive rollers 12 to rotate at high speed around the axis of the rotating shaft 10, thus facilitating the assembly of the container bag reinforcement stitching. During operation, the container bag and the tie rod are placed on the workbench 3 with one end positioned below the two sets of drive rollers 12. Under the action of the torsion spring 8, the rotating drive roller 12 can always maintain contact with the container bag and the tie rod. Utilizing the friction between the surface of the drive roller 12 and the material, the container bag and the tie rod can be conveyed towards the sewing head 2. By adjusting the speed of the drive motor 11, the rotation speed of the drive roller 12 can be changed, thereby achieving precise control of the feeding speed and ensuring that the feeding speed matches the sewing speed of the sewing head 2. This ensures the continuity and stability of the sewing process. Furthermore, through the settings, the continuity and stability of the sewing can be ensured, and it can also flexibly adapt to the conveying of materials of different thicknesses.

[0024] Both sets of drive rollers 12 have anti-slip textures on their surfaces. These textures significantly increase the friction between the drive rollers 12 and the container bag and the reinforcing strip, effectively preventing material slippage.

[0025] The limiting mechanism includes a pressure plate 17. An electric telescopic rod 13 is installed at one end of the sewing machine head 2. A lifting frame 14 is connected to one end of the electric telescopic rod 13. A through groove 15 is provided at the center of the lifting frame 14 to facilitate the movement of the needle bar of the sewing machine head 2. Connecting rods 16 are slidably connected to the four corners of the lifting frame 14. One end of each pair of adjacent connecting rods 16 is connected to the top of the corresponding pressure plate 17. The top of the pressure plate 17 is connected to the bottom of the lifting frame 14 via springs 18 sleeved on the outer ring of the two sets of connecting rods 16. Multiple sets of rollers 19 are rotatably connected to the bottom of each pair of pressure plates 17. By activating the electric telescopic rod 13, it extends, which can drive the lifting frame 14. 4. When the pressure plate 17 descends and contacts the container bag and the tie rod, the electric telescopic rod 13 stops moving. At this time, the spring 18 can automatically adjust the pressure of the pressure plate 17 on the material according to the material thickness to ensure that the material is stably fixed on the worktable 3. When multiple sets of rollers 19 come into contact with the material, they will automatically adjust their angles according to the placement of the material to prepare for subsequent feeding. As the drive mechanism moves the container bag and tie rod forward, the rollers 19 rotate with the movement of the material, which greatly reduces the friction when the material moves and ensures smooth feeding. Thus, by setting up the system, the stable positioning of the material and smooth feeding can be ensured, which helps to improve the sewing quality.

[0026] Among them, the sewing machine head 2 adopts a single-needle sewing method and is equipped with a high-precision needle bar drive system. The high-precision needle bar drive system in the single-needle sewing method uses a motor and belt drive to power the needle bar. The sewing speed is flexibly adjusted by the speed regulator to ensure stable and accurate needle bar movement. It is compatible with different materials and ensures uniform and firm suture stitches to meet diverse sewing needs.

[0027] The sewing machine head 2 is equipped with a tensioning plate 5 on its top and two sets of guide rollers 20 on one side to restrict the movement direction of the tensioning strips. The tensioning plate 5, installed on the top of the sewing machine head 2, serves as a storage and release device for the tensioning strips. During operation, as the sewing process progresses, the tensioning strips are gradually unwound and released from the tensioning plate 5. Since the tensioning plate 5 is directly installed on the top of the sewing machine head 2, it can quickly respond to sewing needs at close range, ensuring timely supply of tensioning strips and reducing the risk of sewing interruption due to untimely supply. The two sets of guide rollers 20 on one side of the sewing machine head 2 precisely restrict the movement direction of the tensioning strips. After the tensioning strips are released from the tensioning plate 5, they pass between the two sets of guide rollers 20, whose positions are relatively fixed. Under the constraint of the guide rollers 20, the tensioning strips can only move towards the sewing position along a specific trajectory. This effectively avoids problems such as entanglement and deviation of the tensioning strips during the conveying process, ensuring that the tensioning strips always arrive at the sewing area at the correct angle and position, accurately aligning with the container bag, thereby greatly improving the accuracy and stability of the sewing and ensuring the sewing quality.

[0028] Working principle: First, place the container bag on the worktable 3, aligning the part to be sewn with the sewing channel 4. Then, place the tensioner on the corresponding position on the container bag. Next, activate the electric telescopic rod 13 to extend it, which will drive the lifting frame 14 and the pressure plate 17 to descend. When the pressure plate 17 contacts the container bag and the tensioner, stop the electric telescopic rod 13. At this time, the spring 18 automatically adjusts the pressure of the pressure plate 17 on the material according to the material thickness, ensuring that the material is stably fixed on the worktable 3. Then, start the motor of the sewing machine head 2, and the needle bar begins to move up and down. When the needle passes through the sewing channel 4 to sew the material, the drive motor 11 is started, and its output end can drive the rotating shaft 10 to rotate synchronously. The rotation of the rotating shaft 10 can directly drive the two sets of drive rollers 12 to rotate at high speed around the axis of the rotating shaft 10. Under the action of the torsion spring 8, the rotating drive rollers 12 can always maintain contact with the container bag and the tie rod. Utilizing the friction between the surface of the drive roller 12 and the material, the container bag and the tie rod can be conveyed forward in the direction of the sewing head 2 at a preset speed, so that the sewing process continues and thus completes the entire operation process.

[0029] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0030] Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A container bag reinforcement sewing machine, comprising a frame (1), characterized in that: A sewing head (2) is installed on the top of the frame (1). A workbench (3) is provided below the sewing head (2). A sewing channel (4) is provided on the top of the workbench (3) directly opposite the needle bar of the sewing head (2). A drive mechanism for easy feeding is installed on the top of the frame (1) on one side of the workbench (3). A limiting mechanism for easy material positioning is provided on the outer ring of the sewing head (2) at the needle bar.

2. The container bag reinforcement sewing machine according to claim 1, characterized in that: The driving mechanism includes a driving roller (12). The top of the frame (1) is provided with a fixed shaft (6) on one side of the worktable (3). The outer ring of the fixed shaft (6) is fitted with a sleeve (7) and is rotatably connected to the sleeve (7) by a torsion spring (8). One end of the sleeve (7) is connected to a connecting frame (9). A rotating shaft (10) is rotatably connected to one side of the connecting frame (9) near the end. One end of the rotating shaft (10) is connected to the output end of a driving motor (11) installed on the other side of the connecting frame (9). Two sets of driving rollers (12) are fitted on the outer ring of the rotating shaft (10).

3. The container bag reinforcement sewing machine according to claim 2, characterized in that: Both sets of drive rollers (12) have anti-slip textures on their surfaces.

4. The container bag reinforcement sewing machine according to claim 1, characterized in that: The limiting mechanism includes a pressure plate (17). One end of the suture head (2) is equipped with an electric telescopic rod (13). One end of the electric telescopic rod (13) is connected to a lifting frame (14). The center of the lifting frame (14) is provided with a through groove (15) to facilitate the movement of the needle bar of the suture head (2). The lifting frame (14) is slidably connected to the four corners of each corner. One end of each of the two adjacent sets of connecting rods (16) is connected to the top of the corresponding pressure plate (17). The top of the pressure plate (17) is connected to the bottom of the lifting frame (14) through a spring (18) sleeved on the outer ring of the two sets of connecting rods (16). The bottom of each of the two sets of pressure plates (17) is rotatably connected to multiple sets of rollers (19).

5. A container bag reinforcement sewing machine according to claim 4, characterized in that: The suture head (2) adopts a single-needle suture method and is equipped with a high-precision needle bar drive system.

6. A container bag reinforcement sewing machine according to claim 5, characterized in that: The top of the sewing machine head (2) is equipped with a tensioning plate (5), and two sets of guide rollers (20) are installed on one side of the sewing machine head (2) to restrict the movement direction of the tensioning plate.

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