Cloth flattening device for sewing machine

Abstract

The utility model discloses a cloth flattening device for a sewing machine. The cloth flattening device comprises a workbench, a sewing machine body arranged on the upper surface of the workbench, a first flattening mechanism arranged on the upper surface of the workbench and a second flattening mechanism arranged on one side of the workbench. The first flattening mechanism comprises two fixing cylinders, two sliding plates arranged in the two fixing cylinders correspondingly, and the same U-shaped rod arranged on the upper surfaces of the two sliding plates. Through the arrangement of the first flattening mechanism and the second flattening mechanism, efficient flattening and stable clamping of long cloth are achieved; when cloth penetrates through the flattening mechanism, a U-shaped rod drives a rotating column to descend under the tension effect of a tension spring, the cloth is tightly clamped, the flatness and stability of the cloth in the sewing process are ensured, the clamping stability is further enhanced through arrangement of a damper, the situation that the cloth tension is abnormal due to the too high sewing speed is avoided, and the sewing quality is improved. Therefore, sewing efficiency and quality are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of textiles, and in particular to a fabric flattening device for sewing machines. Background Technology

[0002] A sewing machine is a machine that uses one or more sewing threads to create one or more stitches on fabric, allowing one or more layers of fabric to interweave or sew together. Sewing machines can sew fabrics such as cotton, linen, silk, wool, and synthetic fibers, as well as products made of leather, plastic, and paper. The stitches produced are neat, beautiful, flat, and strong, and the sewing speed is fast and easy to use.

[0003] In traditional sewing operations, when sewing long pieces of fabric, the fabric can easily pile up in front of the sewing machine. This not only hinders the smooth movement of the sewing machine needle, but may also cause uneven tension on the fabric during sewing, thus affecting the neatness of the stitches. Furthermore, due to the long length, tension changes are prone to occur during the feeding process, especially when the fabric passes through the needle part of the sewing machine. If the tension is not properly controlled, it can lead to uneven stitch tightness, or even sewing defects such as skipped stitches or broken threads.

[0004] Therefore, in order to address the shortcomings of the above-mentioned problems, a fabric flattening device for sewing machines is proposed. Summary of the Invention

[0005] This invention overcomes the shortcomings of the prior art and provides a fabric flattening device for sewing machines.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a fabric flattening device for a sewing machine, comprising: a worktable, a sewing machine body disposed on the upper surface of the worktable, a first flattening mechanism disposed on the upper surface of the worktable, and a second flattening mechanism disposed on one side of the worktable;

[0007] The first flattening mechanism includes: two fixed cylinders, two sliding plates respectively disposed in the two fixed cylinders, a U-shaped rod disposed on the upper surface of the two sliding plates, a first rotating column disposed on the outer circumference of the U-shaped rod, a rotating rod disposed between the fixed cylinders, a second rotating column disposed on the outer circumference of the rotating rod, and two tension springs respectively disposed at the bottom of the two sliding plates.

[0008] The two fixed cylinders are fixedly connected to the upper surface of the workbench. The upper surface of the two fixed cylinders is provided with sliding grooves. The two sliding plates are located in the two sliding grooves and are fixedly connected. The two tension springs are located in the two sliding grooves respectively.

[0009] In a preferred embodiment of this utility model, the top end of the tension spring is fixedly connected to the top end of the sliding plate.

[0010] In a preferred embodiment of this utility model, the bottom end of the tension spring is fixedly connected to the bottom inner wall of the sliding groove.

[0011] In a preferred embodiment of the present invention, the two ends of the U-shaped rod are fixedly connected to the upper surface of the sliding plate, and the inner circumferential wall of the first rotating column is rotatably connected to the outer circumferential wall of the U-shaped rod.

[0012] In a preferred embodiment of this utility model, the two ends of the rotating rod are rotatably connected to the outer circumferential walls of the two fixed cylinders, respectively.

[0013] In a preferred embodiment of this invention, the inner circumferential wall of the second rotating column is fixedly connected to the outer circumferential wall of the rotating rod.

[0014] In a preferred embodiment of this utility model, dampers are provided in both the first rotating column and the second rotating column.

[0015] In a preferred embodiment of this invention, anti-slip pads are adhered to the outer circumferential walls of both the first rotating column and the second rotating column.

[0016] In a preferred embodiment of this utility model, two fixing rods are fixedly connected to the upper surface of the workbench, and the top of the two fixing rods is fixedly connected to the same limiting plate.

[0017] In a preferred embodiment of the present invention, the first flattening mechanism and the second flattening mechanism have the same structure, and the second flattening mechanism is fixedly installed on one side of the workbench.

[0018] This utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0019] (1) This utility model provides a fabric flattening device for sewing machines. Through the setting of a first flattening mechanism and a second flattening mechanism, efficient flattening and stable clamping of long fabrics are achieved. When the fabric passes through the flattening mechanism, the tension of the spring causes the U-shaped rod to drive the rotating column to descend, clamping the fabric tightly and ensuring the flatness and stability of the fabric during the sewing process. Furthermore, the setting of the damper further enhances the stability of the clamping, avoiding abnormal fabric tension caused by excessive sewing speed, thereby improving sewing efficiency and quality.

[0020] (2) This utility model provides a fabric flattening device for sewing machines. By setting a limiting plate, the limiting plate can provide solid support for the fabric, preventing the fabric from sagging or shifting due to gravity during the sewing process, thereby simplifying the operator's operation process and improving the accuracy and consistency of sewing. At the same time, the synergistic effect of the limiting plate and the flattening mechanism ensures that the fabric remains flat and stable throughout the entire sewing process.

[0021] (3) This utility model provides a fabric flattening device for sewing machines. By setting a damper, it can effectively enhance the clamping stability of the first flattening mechanism and the second flattening mechanism on the fabric. It can absorb the vibration or shaking energy of the fabric caused by the rapid movement of the sewing machine during the sewing process, thereby ensuring that the fabric is stably clamped in the flattening mechanism. Furthermore, by stabilizing the fabric and maintaining its uniform tension, it makes the stitches neat and the lines smooth, thereby improving the overall quality of sewing. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0023] Figure 1 This is a three-dimensional structural view of the device body according to a preferred embodiment of the present invention;

[0024] Figure 2 This is a cross-sectional view of the flattening mechanism according to a preferred embodiment of the present invention.

[0025] In the diagram: 1. Workbench; 2. Sewing machine body; 3. First flattening mechanism; 301. Fixed cylinder; 302. Tension spring; 303. Sliding groove; 304. U-shaped rod; 305. First rotating column; 306. Rotating rod; 307. Second rotating column; 308. Sliding plate; 4. Fixed rod; 5. Limiting plate; 6. Second flattening mechanism. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0027] like Figure 1 As shown, a fabric flattening device for a sewing machine includes: a worktable 1, a sewing machine body 2 disposed on the upper surface of the worktable 1, a first flattening mechanism 3 disposed on the upper surface of the worktable 1, and a second flattening mechanism 6 disposed on one side of the worktable 1.

[0028] like Figure 2 As shown, the first flattening mechanism 3 includes: two fixed cylinders 301, two sliding plates 308 respectively disposed in the two fixed cylinders 301, the same U-shaped rod 304 disposed on the upper surface of the two sliding plates 308, a first rotating column 305 disposed on the outer circumference of the U-shaped rod 304, a rotating rod 306 disposed between the fixed cylinders 301, a second rotating column 307 disposed on the outer circumference of the rotating rod 306, and two tension springs 302 respectively disposed at the bottom of the two sliding plates 308;

[0029] Two fixed cylinders 301 are fixedly connected to the upper surface of the workbench 1. Each of the two fixed cylinders 301 has a sliding groove 303 on its upper surface. Two sliding plates 308 are located in the two sliding grooves 303 and are fixedly connected. Two tension springs 302 are located in the two sliding grooves 303.

[0030] The top end of the tension spring 302 is fixedly connected to the top of the sliding plate 308, and the bottom end of the tension spring 302 is fixedly connected to the bottom inner wall of the sliding groove 303. The two ends of the U-shaped rod 304 are fixedly connected to the upper surface of the sliding plate 308 respectively. The inner circumference of the first rotating column 305 is rotatably connected to the outer circumference of the U-shaped rod 304. The two ends of the rotating rod 306 are rotatably connected to the outer circumference of the two fixed cylinders 301 respectively. The inner circumference of the second rotating column 307 is fixedly connected to the outer circumference of the rotating rod 306. Both the first rotating column 305 and the second rotating column 307 are equipped with dampers. Both the outer circumference of the first rotating column 305 and the second rotating column 307 are bonded with anti-slip pads.

[0031] The first flattening mechanism 3 and the second flattening mechanism 6 have the same structure. The second flattening mechanism 6 is fixedly installed on one side of the workbench 1. Two fixed rods 4 are fixedly connected to the upper surface of the workbench 1, and the same limiting plate 5 is fixedly connected to the top of the two fixed rods 4.

[0032] It should be noted that the workbench 1 provides a stable support platform for the sewing machine body 2, the first flattening mechanism 3, and the second flattening mechanism 6. Through the coordinated work with the first flattening mechanism 3 and the second flattening mechanism 6, sewing of the fabric can be achieved. The fixed cylinder 301 is fixedly connected to the workbench 1, providing a mounting base for the sliding plate 308, tension spring 302, etc. The sliding plate 308 slides in the sliding groove 303, and the flattening force of the fabric can be automatically adjusted by the tension of the tension spring 302. The U-shaped rod 304 is fixedly connected to the sliding plate 308 and supports the first rotating column 305, enabling it to rotate. The first rotating column 305 and the second rotating column 307 together clamp the fabric; the damper reduces the vibration of the fabric during the sewing process and maintains stable tension; the anti-slip pad further enhances the clamping force of the rotating column on the fabric and prevents the fabric from sliding during the sewing process; the limiting plate 5 is fixedly connected to the upper surface of the worktable 1 through the fixing rod 4, providing additional support for the fabric and ensuring the flatness and stability of the fabric during the sewing process.

[0033] In use, the longer end of the fabric is passed through one side of the worktable 1, passing through the second flattening mechanism 6. The fabric passes through the gap between the second rotating column 307 and the first rotating column 305. At this time, due to the tension of the tension spring 302, the U-shaped rod 304 will drive the first rotating column 305 to descend, clamping the fabric together with the second rotating column 307. After passing through the limiting plate 5, the fabric continues to move forward and passes over the upper surface of the limiting plate 5. The limiting plate 5 serves to support the fabric, ensuring that the fabric does not sag or shift during sewing. Next, the fabric passes through the first flattening mechanism 3 on the upper surface of the worktable 1. The operation of the first flattening mechanism 3 is the same as that of the second flattening mechanism 6. Through the coordinated action of the tension spring 302, the U-shaped rod 304, the first rotating column 305, and the second rotating column 307, the fabric is clamped and flattened. After the fabric has completely passed through the first flattening mechanism 3, the sewing machine body 2 can be started for sewing. During the sewing process, the first pressing mechanism 3 and the second pressing mechanism 6 continuously press the fabric flat to ensure sewing quality; and through the setting of the damper, the fabric tension is not affected even at high speeds during the sewing process, maintaining a stable sewing effect.

[0034] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A fabric flattening device for a sewing machine, comprising: The sewing machine body (2) is provided on the upper surface of the worktable (1), a first flattening mechanism (3) is provided on the upper surface of the worktable (1), and a second flattening mechanism (6) is provided on one side of the worktable (1), characterized in that; The first flattening mechanism (3) includes: two fixed cylinders (301), two sliding plates (308) respectively disposed in the two fixed cylinders (301), the same U-shaped rod (304) disposed on the upper surface of the two sliding plates (308), a first rotating column (305) disposed on the outer circumference of the U-shaped rod (304), a rotating rod (306) disposed between the fixed cylinders (301), a second rotating column (307) disposed on the outer circumference of the rotating rod (306), and two tension springs (302) respectively disposed at the bottom of the two sliding plates (308); The two fixed cylinders (301) are fixedly connected to the upper surface of the workbench (1). The upper surface of the two fixed cylinders (301) is provided with sliding grooves (303). The two sliding plates (308) are respectively located in the two sliding grooves (303) and fixedly connected. The two tension springs (302) are respectively located in the two sliding grooves (303).

2. The fabric flattening device for a sewing machine according to claim 1, characterized in that: The top end of the tension spring (302) is fixedly connected to the top end of the sliding plate (308).

3. The fabric flattening device for a sewing machine according to claim 1, characterized in that: The bottom end of the tension spring (302) is fixedly connected to the bottom inner wall of the sliding groove (303).

4. The fabric flattening device for a sewing machine according to claim 1, characterized in that: The two ends of the U-shaped rod (304) are fixedly connected to the upper surface of the sliding plate (308), and the inner circumferential wall of the first rotating column (305) is rotatably connected to the outer circumferential wall of the U-shaped rod (304).

5. A fabric flattening device for a sewing machine according to claim 1, characterized in that: The two ends of the rotating rod (306) are respectively rotatably connected to the outer circumferential walls of the two fixed cylinders (301).

6. A fabric flattening device for a sewing machine according to claim 1, characterized in that: The inner circumferential wall of the second rotating column (307) is fixedly connected to the outer circumferential wall of the rotating rod (306).

7. A fabric flattening device for a sewing machine according to claim 1, characterized in that: Both the first rotating column (305) and the second rotating column (307) are equipped with dampers.

8. A fabric flattening device for a sewing machine according to claim 1, characterized in that: The outer circumferential walls of the first rotating column (305) and the second rotating column (307) are both coated with anti-slip pads.

9. A fabric flattening device for a sewing machine according to claim 1, characterized in that: Two fixing rods (4) are fixedly connected to the upper surface of the workbench (1), and the top of the two fixing rods (4) is fixedly connected to the same limiting plate (5).

10. A fabric flattening device for a sewing machine according to claim 1, characterized in that: The first flattening mechanism (3) and the second flattening mechanism (6) have the same structure, and the second flattening mechanism (6) is fixedly installed on one side of the workbench (1).

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