Device for fixing width of edge locking strip

Abstract

The utility model relates to the field of garment production, in particular to an overlock strip width fixing device which is installed on an existing four-thread overlock machine, and the four-thread overlock machine comprises an overlock table and an overlock device installed on the overlock table. The overlock device comprises an overlock needle used for overlock the clothes, a shear knife installed on the overlock table and located at the front end of the overlock needle, and a pressing and conveying piece which is arranged on the overlock table, located on the periphery of the overlock needle and capable of pressing the clothes and driving the clothes to move towards the rear side of the overlock table. The pressing conveying piece is used for pulling clothes to move in the direction away from the shear knife and comprises a guide rail arranged on the overlock table, the guide rail is located on one side of the shear knife, and a control space for an overlock strip to slide in is formed between the guide rail and the shear knife. The device has the advantages that it can be guaranteed that the width of the edge locking strip is fixed, and the width of the edge locking strip is more convenient to control.

Description

A locking strip width fixing device Technical Field

[0001] This application relates to the field of garment production, and in particular to a device for fixing the width of overlock strips. Background Technology

[0002] In garment production, to prevent unraveling, the edges of clothing are typically finished with overlock. Currently, there are two methods for overlocking garment edges: one is using a four-thread overlock machine; the other is using overlock strips, which are sewn onto the garment edges. When using overlock strips, the strips must first be cut to a consistent width throughout. Inconsistent strip widths will affect the final appearance of the garment. Therefore, maintaining a consistent overlock strip width is a key challenge. Summary of the Invention

[0003] To ensure a fixed width for the seam allowance and make it easier to control the seam allowance width, this application provides a seam allowance width fixing device.

[0004] The edge strip width fixing device provided in this application adopts the following technical solution:

[0005] A device for fixing the width of an overlock strip is installed on an existing four-thread overlock sewing machine. The four-thread overlock sewing machine includes an overlock table and an overlock device installed on the overlock table. The overlock device includes an overlock needle for overlocking clothing, a cutting blade installed on the overlock table and located at the front end of the needle, and a pressing and conveying component disposed on the overlock table and located around the overlock needle, which can press and move the clothing to the rear of the overlock table. The pressing and conveying component is used to pull the clothing away from the cutting blade. The device is characterized by including a guide rail disposed on the overlock table, the guide rail being located on one side of the cutting blade, and a control space for the overlock strip to slide into being formed between the guide rail and the cutting blade.

[0006] Optionally, the guide rail is slidably engaged with the overlock table, and the overlock table is provided with a fixing component for fixing the position of the guide rail on the overlock table.

[0007] Optionally, the fixing component includes a first locking bolt threaded onto the overlocking table, the first locking bolt passing through the guide rail, and a plurality of locking holes spaced apart on the overlocking table for the first locking bolt to screw into, the opening direction of the locking holes being perpendicular to the length direction of the control space.

[0008] Optionally, the fixing component includes a second locking bolt passing through the guide rail and a locking nut threaded onto the second locking bolt. The overlocking platform has a locking groove for the second locking bolt to be inserted and slide, the length direction of the locking groove being perpendicular to the length direction of the control space. The overlocking platform has a sliding groove for the locking nut to be inserted, the sliding groove being located below the locking groove.

[0009] Optionally, two fixing components are provided at intervals along the length of the control space.

[0010] Optionally, the overlock sewing table is provided with a scale strip.

[0011] Optionally, a guide plate is fixed to the side of the guide rail away from the overlock needle, and the end of the guide plate away from the guide rail extends in a direction away from the control space.

[0012] Optionally, a limiting plate is fixed to the side of the guide rail facing the control space, and the control space is located on the side of the limiting plate facing the overlocking table.

[0013] Optionally, a collection groove is provided on the overlock sewing table, and the collection groove is located on the side of the cutting blade away from the guide rail.

[0014] Optionally, the depth of the collection groove gradually decreases on the side away from the shearing blade. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0016] Figure 2 is an enlarged view of point A in Figure 1.

[0017] Figure 3 is a schematic diagram of the overall structure of Embodiment 2 of this application.

[0018] Figure 4 is an enlarged view of point B in Figure 3.

[0019] Figure 5 is a schematic diagram to illustrate the sliding groove and embedded groove structure.

[0020] Explanation of reference numerals in the attached drawings: 11, overlocking table; 111, locking groove; 112, sliding groove; 113, embedding groove; 12, overlocking device; 121, overlocking needle; 122, cutting blade; 123, pressing and transmitting component; 2, guide rail; 21, guide plate; 22, limiting plate; 3, fixing assembly; 31, first locking bolt; 32, locking hole; 33, second locking bolt; 34, locking nut; 4, control space; 5, scale bar; 6, collection groove; 61, guide groove. Detailed Implementation

[0021] The present application will be further described in detail below with reference to Figures 1-5.

[0022] Referring to Figure 1, a four-thread overlock sewing machine is a machine that uses needle and thread to bind the edges of clothing. It includes an overlock table 11 and an overlock device 12 mounted on the table 11. The overlock device 12 includes an overlock needle 121 for binding the edges of the clothing, a shearing blade 122 mounted on the table 11 and located at the front end of the needle 121, and a pressing and conveying component 123 located on the table 11 and around the needle 121 to press and move the clothing towards the rear of the table 11. When binding the edges of clothing, the clothing is placed under the needle 121 and held in place by the pressing and conveying component 123. During the process of conveying the clothing to the needle 121, the clothing first passes through the shearing blade 122. Uneven areas on the edges are first trimmed smooth by the shearing blade 122 before being bound by the needle 121, ensuring a good binding effect. During the overlock sewing process of the overlock needle 121, the pressure conveyor 123 also moves the garment to the rear end, thus achieving continuous overlock sewing of the garment.

[0023] This application discloses a device for fixing the width of a seam strip.

[0024] Example 1

[0025] Referring to Figures 1 and 2, the overlock strip width fixing device includes a guide rail 2 disposed on the overlock table 11. The guide rail 2 is slidably engaged with the overlock table 11 and can be fixed at a specific position on the overlock table 11 by a fixing component 3. The guide rail 2 is located on one side of the cutting blade 122, forming a control space 4 between the guide rail 2 and the cutting blade 122 for the overlock strip to slide into.

[0026] Referring to Figure 2, in this embodiment, the fixing component 3 includes a first locking bolt 31, which is threaded onto the overlocking table 11 and passes through the guide rail 2. The overlocking table 11 has a plurality of locking holes 32 spaced apart along a direction perpendicular to the length of the control space 4 for the first locking bolt 31 to screw into. By adjusting the position of the first locking bolt 31 in the locking holes 32, the position of the guide rail 2 on the overlocking table 11 can be easily adjusted, thereby controlling the width of the overlock strip.

[0027] In order to improve the stability of the guide rail 2 on the overlock table 11, two fixing components 3 are provided at intervals along the direction of the control space 4.

[0028] Referring to Figure 2, a guide plate 21 is fixedly connected to the side of the guide rail 2 away from the overlock needle 121. The end of the guide plate 21 away from the guide rail 2 extends away from the control space 4 to guide the overlock strip into the control space 4 correctly. The guide plate 21 ensures that the overlock strip can slide smoothly into the control space 4 and avoids jamming.

[0029] Meanwhile, a limiting plate 22 is fixedly attached to the side of the guide rail 2 facing the control space 4. The control space 4 is positioned on the side of the limiting plate 22 facing the overlock table 11 to limit the position of the overlock strip within the control space 4 and reduce the probability of wrinkles occurring in the overlock strip within the control space 4. The limiting plate 22 also prevents the overlock strip from shifting within the control space 4.

[0030] Referring to Figure 1, a collection trough 6 is also provided on the overlock sewing table 11. The collection trough 6 is located on the side of the cutting blade 122 away from the guide rail 2. The collection trough 6 is used to collect the waste overlock strip after cutting, so as to keep the working environment clean.

[0031] Meanwhile, to facilitate the collection and cleaning of waste, the depth of the collection trough 6 gradually decreases from the side furthest from the shear blade 122. This design allows waste to fall more easily into the collection trough 6 under the influence of gravity, and when cleaning the waste, it can easily slide out of the collection trough 6 from the side furthest from the shear blade 122, making the operation more convenient.

[0032] Meanwhile, in order to facilitate the smooth passage of the waste material cut by the shearing blade 122 into the collection tank 6, a guide groove 61 for guiding the waste material is provided between the shearing blade 122 and the collection tank 6. The guide groove 61 is fixedly connected to the overlocking table 11.

[0033] In use, simply start the four-thread overlock sewing machine and slide the overlock strip to be cut into the control space 4. The overlock strip will then slide via the pressing and conveying component 123. During the sliding process, one side of the overlock strip is in contact with the guide rail 2, and the other side is in contact with the cutting blade 122. If there is any excess overlock strip, the excess will be cut off by the cutting blade 122, ensuring that the width of the overlock strip is always within the width between the guide rail 2 and the cutting blade 122. By utilizing the existing structure of the four-thread overlock sewing machine, the overlock strip can be cut. Furthermore, by adjusting the position of the guide rail 2 on the overlock table 11, the width of the overlock strip can be easily controlled, improving the aesthetics of the finished garment. Additionally, by setting auxiliary components such as the scale bar 5, guide plate 21, and limiting plate 22, the ease of use of the device and the control accuracy of the overlock strip width can be further improved. The collection groove 6 facilitates the collection of waste generated during the cutting process, keeping the working environment clean.

[0034] Example 2

[0035] The difference between this embodiment and Embodiment 1 lies in the structure of the fixing component 3. Referring to Figures 3, 4, and 5, in this embodiment, the fixing component 3 includes a second locking bolt 33 and a locking nut 34. The second locking bolt 33 passes through the guide rail 2, and the locking nut 34 is threaded onto the second locking bolt 33. A locking groove 111 for the second locking bolt 33 to pass through is provided on the overlocking table 11, and the length direction of the locking groove 111 is perpendicular to the length direction of the control space 4. A sliding groove 112 for the locking nut 34 to be inserted and slid is also provided on the overlocking table 11, and the sliding groove 112 is located directly below and communicates with the locking groove 111. An insertion groove 113 for the second locking bolt 33 to be inserted is provided on the side of the sliding groove 112 away from the locking groove 111 on the overlocking table 11. After the second locking bolt 33 is screwed onto the locking nut 34, the part that passes through the locking nut 34 will reach into the insertion groove 113. Under normal conditions, the locking nut 34 is installed in the sliding groove 112, and the second locking bolt 33 is screwed onto the locking nut 34. By loosening the second locking bolt 33, the guide rail 2 can be operated to slide on the overlocking table 11. At this time, the locking nut 34 also slides in the sliding groove 112. When it slides to the set position, tighten the second locking bolt 33 to fix the position of the guide rail 2 on the overlocking table 11.

[0036] This application enables stepless adjustment by setting a locking groove 111, allowing the guide rail 2 to slide to any position and the locking strip to be cut to any required width, making operation more convenient and flexible.

[0037] Meanwhile, to facilitate control of the sliding position of the guide rail 2, a scale strip 5 is also provided on the overlock sewing table 11 to help determine and control the width of the overlock strip. The scale strip 5 allows for more intuitive adjustment of the guide rail 2's position.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for fixing the width of a hem strip, which is installed on an existing four-thread overlock sewing machine, the four-thread overlock sewing machine including an overlock table (11) and an overlock device (12) installed on the overlock table (11), the overlock device (12) including an overlock needle (121) for overlocking clothing, a cutting blade (122) installed on the overlock table (11) and located at the front end of the needle, and a pressing and conveying member (123) arranged on the overlock table (11) and located around the overlock needle (121) to press and move the clothing to the rear of the overlock table (11), the pressing and conveying member (123) being used to pull the clothing away from the cutting blade (122), characterized in that: Includes a guide rail (2) set on the overlocking table (11), the guide rail (2) being located on one side of the cutting blade (122), and a control space (4) for the overlock strip to slide into is formed between the guide rail (2) and the cutting blade (122).

2. The locking strip width fixing device according to claim 1, characterized in that: The guide rail (2) is slidably engaged with the overlock table (11), and the overlock table (11) is provided with a fixing component (3) for fixing the position of the guide rail (2) on the overlock table (11).

3. The device of claim 2, wherein: The fixing component (3) includes a first locking bolt (31) threaded onto the sewing table (11), the first locking bolt (31) passing through the guide rail (2), and the sewing table (11) having a plurality of locking holes (32) spaced apart for the first locking bolt (31) to be screwed into, the opening direction of the locking holes (32) being perpendicular to the length direction of the control space (4).

4. The device of claim 2, wherein: The fixing component (3) includes a second locking bolt (33) passing through the guide rail (2) and a locking nut (34) threaded onto the second locking bolt (33). The overlocking table (11) has a locking groove (111) for the second locking bolt (33) to be inserted and slid. The length direction of the locking groove (111) is perpendicular to the length direction of the control space (4). The overlocking table (11) has a sliding groove (112) for the locking nut (34) to be inserted. The sliding groove (112) is located below the locking groove (111).

5. The locking strip width fixing device according to claim 3 or 4, characterized in that: Two fixing components (3) are spaced apart along the length of the control space (4).

6. The serger strip width fixation device of claim 1, wherein: The overlock table (11) is provided with a scale strip (5).

7. The device of claim 1, wherein: A guide plate (21) is fixed to the side of the guide rail (2) away from the overlock needle (121), and the end of the guide plate (21) away from the guide rail (2) extends in a direction away from the control space (4).

8. The locking strip width fixing device according to claim 1, characterized in that: The guide rail (2) is fixed to a limiting plate (22) on the side facing the control space (4), and the control space (4) is located on the side of the limiting plate (22) facing the overlock table (11).

9. The serger strip width fixation device of claim 1, wherein: The overlock sewing table (11) is provided with a collection groove (6), which is located on the side of the shearing blade (122) away from the guide rail (2).

10. The serger strip width fixation device of claim 9, wherein: The depth of the collection groove (6) gradually decreases on the side away from the shear blade (122).

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