Ton bag sewing machine

Abstract

The utility model discloses a ton bag sewing machine, specifically relates to sewing equipment technical field, including base, the base upper end is fixed with sewing machine body, the sewing machine body left -hand end is fixed with the cylinder through the mounting support, the mounting support output is fixed with the cutter, the base upper end is equipped with the through groove that cooperates with sewing machine body, cutter, the base lower extreme is fixed with the heating block that cooperates with the cutter, the base upper end still is provided with conveying assembly. The utility model discloses a ton bag sewing machine, through the elasticity regulation of spring telescopic link, cooperate the diamond antiskid line of rubber ring and conveying wheel outside the pressure wheel, can increase the friction of ton bag fabric, avoid skidding, can also adapt to the fabric of different thickness, simultaneously, the driving motor of the sewing direction and the torsional spring of reverse form the tension cooperation, effectively reduce the fabric wrinkle, guarantee the neatness of the suture stitch, solve the problem of unstable conveying of traditional equipment.

Description

Technical Field

[0001] This utility model relates to the field of sewing equipment technology, and in particular to a ton bag sewing machine. Background Technology

[0002] BOOM (bulk bag) bags, as important packaging containers for transporting bulk commodities, are mostly made of 1500D-3000D polypropylene or polyethylene woven fabric, characterized by high strength, thickness, and rigidity. Existing sewing machines have the following problems when processing BOOM bags:

[0003] Unstable conveying of thick materials: The fabric of ton bags is thick and has a rough surface. Traditional conveying mechanisms are prone to slippage and wrinkles, which can cause the stitching to deviate and affect product quality.

[0004] Low efficiency in thread removal: When mechanical thread cutting is used, synthetic fiber threads are prone to fraying and fraying, requiring secondary manual trimming, which increases process costs.

[0005] Poor equipment compatibility: The sewing and thread-cutting mechanisms are prone to mutual interference, requiring frequent adjustments to the machine head position, resulting in insufficient adaptability.

[0006] To address the aforementioned issues, this invention provides a highly automated and adaptable sewing machine specifically designed for ton bags by optimizing the conveying structure and hot-cutting system. Utility Model Content

[0007] The main purpose of this utility model is to provide a ton bag sewing machine that can effectively solve the problems of unstable conveying, poor thread end treatment, and mutual interference between mechanisms.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] A ton bag sewing machine includes a base, a sewing machine body fixed to the upper end of the base, a cylinder fixed to the left end of the sewing machine body via a mounting bracket, a cutter fixed to the output end of the mounting bracket, a through groove for cooperating with the sewing machine body and the cutter on the upper end of the base, a heating block cooperating with the cutter fixed to the lower end of the base, and a conveying assembly also provided on the upper end of the base.

[0010] Preferably, the conveying assembly includes a spring telescopic rod fixed to the upper end of the base, a pressure wheel is rotatably mounted on the left end of the spring telescopic rod, and an installation groove is also provided on the upper end of the base, in which a conveying wheel that cooperates with the pressure wheel is rotatably mounted.

[0011] Preferably, a rubber ring is fixed on the outer surface of the clamping wheel, and a diamond-shaped anti-slip pattern is formed on the outer surface of the conveying wheel.

[0012] Preferably, the upper part of the cylinder is tilted to the left.

[0013] Preferably, the pressing wheel on the sewing direction side is driven by a drive motor, and the pressing wheel on the reverse sewing direction side is provided with a torsion spring at the rotating connection.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention utilizes the elasticity adjustment of a spring telescopic rod, combined with the rubber ring outside the pressure wheel and the diamond-shaped anti-slip texture of the conveyor wheel, to increase friction with the ton bag fabric, preventing slippage, and adapting to fabrics of different thicknesses. Simultaneously, the drive motor moving in the sewing direction and the torsion spring moving in the opposite direction form a tension cooperation, effectively reducing fabric wrinkles, ensuring neat stitches, and solving the problem of unstable conveying in traditional equipment.

[0016] This invention utilizes an inclined cylinder to drive a cutter in conjunction with a heating block, enabling rapid melting and cutting of synthetic fiber threads, preventing fraying and fuzzing, and eliminating the need for manual secondary trimming. Furthermore, the cylinder's retraction does not interfere with the sewing machine's needle operation, allowing for smooth switching between sewing and hot-cutting processes, thus improving the overall efficiency of ton bag processing and reducing process costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a right view of the device of this utility model;

[0019] Figure 3 This is a schematic diagram of the conveying component of this utility model.

[0020] In the diagram: 1. Base; 2. Sewing machine body; 3. Mounting bracket; 4. Cylinder; 5. Cutter; 6. Through slot; 7. Heating block; 8. Conveyor assembly;

[0021] 81. Spring telescopic rod; 82. Pressure roller; 83. Mounting groove; 84. Conveyor wheel; 85. Rubber ring; 86. Drive motor; 87. Torsion spring. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] like Figure 1 and Figure 2As shown, a ton bag sewing machine includes a base 1, a sewing machine body 2 fixed to the upper end of the base 1, a cylinder 4 fixed to the left end of the sewing machine body 2 via a mounting bracket 3, a cutter 5 fixed to the output end of the mounting bracket 3, a through groove 6 for cooperating with the sewing machine body 2 and the cutter 5 on the upper end of the base 1, a heating block 7 for cooperating with the cutter 5 fixed to the lower end of the base 1, the cylinder 4 achieves the hot cutting function through the mutual cooperation between it and the heating block 7, and a conveying component 8 is also provided on the upper end of the base 1, the inner surface of the conveying component 8 is inlaid with a ceramic wear-resistant layer to prevent the cutter 5 from wearing down the base 1 during long-term operation.

[0024] like Figure 2 and Figure 3 As shown, the conveying assembly 8 includes a spring telescopic rod 81 fixed to the upper end of the base 1. A pressure wheel 82 is rotatably mounted on the left end of the spring telescopic rod 81. The upper end of the base 1 is also provided with a mounting groove 83. A conveying wheel 84 that cooperates with the pressure wheel 82 is rotatably mounted inside the mounting groove 83. The conveying wheel 84 is located directly below the pressure wheel 82. Furthermore, in order to increase the friction between the pressure wheel 82, the conveying wheel 84 and the ton bag, the design of the spring telescopic rod 81 and the pressure wheel 82 is adopted. The elasticity of the spring telescopic rod 81 is used to make the device suitable for fabrics of different thicknesses. A rubber ring 85 is fixed on the outer surface of the pressure wheel 82, and a diamond-shaped anti-slip texture is provided on the outer surface of the conveying wheel 84 to improve the friction between it and the fabric.

[0025] Furthermore, to prevent cylinder 4 from obstructing the normal operation of sewing machine body 2, the upper part of cylinder 4 is tilted to the left. When the output end of cylinder 4 is retracted, the cutter 5 will not affect the normal operation of the needle of sewing machine body 2. At the same time, when it is necessary to cut the thread end, the needle of sewing machine body 2 needs to be retracted, and then the output end of cylinder 4 is controlled to extend. Through the cooperation between cutter 5 and through groove 6, the hot cutting of the thread end is completed.

[0026] Furthermore, to reduce fabric wrinkles during sewing, the pressure roller 82 on the sewing direction side is driven by the drive motor 86, and the pressure roller 82 on the reverse sewing direction side is equipped with a torsion spring 87 at its rotation connection. The drive motor 86 drives the pressure roller 82 on the sewing direction side to rotate. The pressure roller 82 on the sewing direction side cooperates with the conveyor roller 84 on the sewing direction side to transport the ton bag to be sewn. Due to the design of the torsion spring 87, the resistance generated by the torsion spring 87 can keep the fabric in a taut state at all times.

[0027] The specific implementation method of this embodiment is as follows:

[0028] Material preparation: Lay the ton bag fabric flat on the conveying component 8, and the spring telescopic rod 81 drives the pressing wheel 82 to press down, automatically adjusting the pressing force according to the fabric thickness;

[0029] Sewing operation: Start the sewing machine body 2, drive motor 86 drives forward conveyor wheel 84 to rotate, and together with pressure wheel 82, feed the fabric at a uniform speed to the area below the sewing needle. Reverse torsion spring 87 generates resistance to keep the fabric taut.

[0030] Heat cutting process: After sewing to the preset length, the sewing machine needle is raised, the cylinder 4 pushes the cutter 5 down, the cutter 5 contacts the heating block 7, and the thread end is melted and cut off.

[0031] Reset cycle: Cylinder 4 retracts, driving the cutter 5 to reset, and the conveying component 8 continues to feed material, entering the next sewing process.

[0032] It should be noted that the specific installation methods, circuit connection methods, and control methods of the sewing machine body 2, cylinder 4, and heating block 7 in this utility model are all conventional designs, and will not be described in detail in this utility model.

Claims

1. A ton bag sewing machine, comprising a base (1), characterized in that: The upper end of the base (1) is fixed with a sewing machine body (2), the left end of the sewing machine body (2) is fixed with a cylinder (4) by a mounting bracket (3), the output end of the mounting bracket (3) is fixed with a cutter (5), the upper end of the base (1) is provided with a through groove (6) that cooperates with the sewing machine body (2) and the cutter (5), the lower end of the base (1) is fixed with a heating block (7) that cooperates with the cutter (5), and the upper end of the base (1) is also provided with a conveying component (8).

2. The ton bag sewing machine according to claim 1, characterized in that: The conveying assembly (8) includes a spring telescopic rod (81) fixed to the upper end of the base (1). A pressure wheel (82) is rotatably installed on the left end of the spring telescopic rod (81). An installation groove (83) is also provided on the upper end of the base (1). A conveying wheel (84) that cooperates with the pressure wheel (82) is rotatably installed inside the installation groove (83).

3. A ton bag sewing machine according to claim 2, characterized in that: The outer surface of the clamping wheel (82) is fixed with a rubber ring (85), and the outer surface of the conveying wheel (84) is provided with a diamond-shaped anti-slip pattern.

4. A ton bag sewing machine according to claim 1, characterized in that: The upper part of the cylinder (4) is tilted to the left.

5. A ton bag sewing machine according to claim 2, characterized in that: The pressing wheel (82) on the sewing direction side is driven by a drive motor (86), and a torsion spring (87) is provided at the rotating connection of the pressing wheel (82) on the opposite sewing direction side.

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