Flat seaming machine with tensioning mechanism

Abstract

The utility model relates to a flat seaming machine with a tensioning mechanism, which belongs to the technical field of flat seaming machines and comprises a working table, a flat seaming machine head, a limit frame, a material pressing frame and a jumping needle, the flat seaming machine head is fixedly mounted at the top of the working table, the bottom of the limit frame is fixed at the top of the working table, and the top of the material pressing frame is fixedly mounted on the flat seaming machine head. The top of the skipping needle is installed on the flat seaming machine head, the bottom of the skipping needle is located inside the lower portion of the material pressing frame, the top of the workbench is fixedly provided with a sewing material surface cleaning and smoothing assembly, the sewing material surface cleaning and smoothing assembly is located on one side of the flat seaming machine head, and the other side of the flat seaming machine head is fixedly provided with a lead tensioning assembly. The device is simple in structure and convenient to use, ensures certain tightness and stability of the lead during sewing, can avoid winding of the lead, can clean and smooth the two faces of sewing materials with different thicknesses at the same time, avoids the problem that the production quality is affected by wrinkles on the surfaces of the sewing materials, and is high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of interlock sewing machines, in particular to an interlock sewing machine with a tensioning mechanism. Background Art

[0002] Interlock sewing machines generally refer to special sewing machines, which are sewing machines for service industries between household sewing machines and industrial sewing machines. Interlock sewing machines are industrial sewing machines that use needle and shuttle threads to form single-sided covered chain stitches on the bottom surface of the sewing material, or add covering threads on the front surface of the sewing material to form double-sided covered chain stitches to sew two or more layers of sewing materials. The stitches of interlock sewing machines are mostly used for rolled collars, piping, ruffles, interlock seams, splicing seams or trims of knitted garments.

[0003] As disclosed in the publication number CN213739961U, a stretch sewing machine comprises a frame and a sewing table fixed on the frame, a feed end and a discharge end are arranged on the sewing table, a bracket is rotatably connected to the feed end on the sewing table, a pressing block is elastically arranged on the bracket, a plurality of conveying wheels for conveying clothes are rotatably connected to the pressing block, a T-slot is arranged on the sewing table, a T-block adapted to the T-slot is fixedly connected to one end of the bracket close to the sewing table, a plurality of locking slots are arranged on the T-block, and a locking structure for limiting the locking slot is arranged on the sewing table.

[0004] The interlock sewing machine mentioned in the above-mentioned comparative document is easy to rotate on the sewing table, so that the feed end and the discharge end are easy to maintain, but it is not possible to adjust the tension of the lead thread, and it is not possible to clean and smooth both sides of sewing materials of different thicknesses at the same time, which makes it extremely inconvenient to use. Utility Model Content

[0005] In order to overcome the technical defects of the prior art, the utility model provides a stretch sewing machine with a tensioning mechanism, which can clean and smooth both sides of sewing materials of different thicknesses at the same time through a sewing material surface cleaning and smoothing component, thereby avoiding the problem of production quality being affected by wrinkles on the sewing material surface and improving the effect of subsequent sewing of the sewing material.

[0006] The technical solution adopted by the utility model is: it includes a workbench, a stretch sewing machine head, a limiting frame, a material pressing frame and a skipping stitch, the stretch sewing machine head is fixedly installed on the top of the workbench, the bottom of the limiting frame is fixed on the top of the workbench, the top of the material pressing frame is fixedly installed on the stretch sewing machine head, the top of the skipping stitch is installed on the stretch sewing machine head, and the bottom of the skipping stitch is located below the material pressing frame. A sewing material surface cleaning and smoothing component is fixedly installed on the top of the workbench, the sewing material surface cleaning and smoothing component is located on one side of the stretch sewing machine head, and a lead wire tensioning component is fixed on the other side of the stretch sewing machine head.

[0007] Preferably, in order to drive the lower mounting plate to move, the seam surface cleaning and smoothing assembly includes a lower mounting frame, the bottom of the lower mounting frame is fixedly mounted on the top of the workbench, a telescopic rod is fixedly mounted on the lower wall inside the lower mounting frame, and the lower mounting plate is fixed on the top of the telescopic rod.

[0008] Preferably, in order to fix the position of the upper mounting plate, an electric push rod is fixedly mounted on the top of the lower mounting frame, an upper mounting frame is fixedly mounted on the top of the electric push rod, and one end of a connecting rod is fixed to the inner upper wall of the upper mounting frame.

[0009] Preferably, in order to clean and smooth both sides of the seam material at the same time, an upper mounting plate is fixed to the bottom of the connecting rod, cleaning pieces are fixedly installed on the bottom of the upper mounting plate and the top of the lower mounting plate, and heat conductive blocks are installed on the bottom of the upper mounting plate and the top of the lower mounting plate.

[0010] Preferably, in order to place the lead wire, the lead wire tensioning assembly includes a fixing frame, one side of the fixing frame is fixed to the other side of the interlock sewing machine head, a rotating cover is rotatably mounted on the other side of the fixing frame, and wire passage openings are opened on both side walls of the fixing frame.

[0011] Preferably, in order to drive the threaded rod to rotate, a limiting plate is fixed to the rear side of the fixing frame, a servo motor is fixedly mounted on the lower wall of the fixing frame, and a threaded rod is mounted on the output end of the servo motor.

[0012] Preferably, in order to adjust the position of the first placement rack so that the tension of the lead wire can be adjusted, the other end of the threaded rod is rotatably installed with one side of a fixed block, and the other side of the fixed block is fixed to the inner upper wall of the fixed rack, and a slider is slidably installed on the threaded rod, and the slider is threadedly connected to the threaded rod, and the servo motor, the threaded rod, the fixed block and the slider are all located between the two limit plates.

[0013] Preferably, in order to prevent the lead wires from being entangled, a first placement rack is fixed to the front side of the slider, a second placement rack is fixed to the rear side of the fixing rack, and the second placement rack is located on both sides of the first placement rack.

[0014] The beneficial effects of the utility model are as follows: the utility model can clean and smooth both sides of sewing materials of different thicknesses at the same time through the sewing material surface cleaning and smoothing component, thereby avoiding the problem of production quality being affected by wrinkles on the sewing material surface, and improving the effect of subsequent sewing of the sewing material. At the same time, the lead wire tensioning component can be used to adjust the tension of the lead wire, ensuring that the lead wire has a certain tightness and stability during sewing, and can avoid lead wire entanglement, making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a front view schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a side view schematic diagram of the overall structure of the utility model.

[0017] Figure 3 It is a rear view schematic diagram of the overall structure of the utility model.

[0018] Figure 4 It is a schematic top view of the overall structure of the utility model.

[0019] Figure 5 It is a schematic diagram of the structure of the component for cleaning and smoothing the surface of sewing materials of the utility model.

[0020] Figure 6 This is a schematic diagram of the structure of the lead tensioning assembly of the utility model.

[0021] Explanation of the accompanying drawings: In the figure: 1. workbench; 2. sewing material surface cleaning and smoothing assembly; 201. lower mounting frame; 202. telescopic rod; 203. lower mounting plate; 204. electric push rod; 205. upper mounting frame; 206. connecting rod; 207. upper mounting plate; 208. cleaning piece; 209. heat transfer block; 3. interlock sewing machine head; 4. lead wire tensioning assembly; 401. fixed frame; 402. rotating cover plate; 403. thread passage; 404. limit plate; 405. servo motor; 406. threaded rod; 407. slider; 408. first placement rack; 409. fixed block; 410. second placement rack; 5. limit rack; 6. material pressing rack; 7. skip stitch. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings:

[0023] like Figure 1-6 As shown, the present embodiment provides a stretch sewing machine with a tensioning mechanism, including a workbench 1, a stretch sewing head 3, a limiting frame 5, a pressing frame 6 and a skipping stitch 7. The stretch sewing head 3 is fixedly mounted on the top of the workbench 1, and the stretch sewing head 3 can drive the pressing frame 6 and the skipping stitch 7 to work, so that the sewing material can be sewn. The bottom of the limiting frame 5 is fixed to the top of the workbench 1, and the limiting frame 5 can place the lead wire for convenient use of the lead wire. The top of the pressing frame 6 is fixedly mounted on the stretch sewing head 3, and the top of the skipping stitch 7 is mounted on the stretch sewing head 3. The bottom of the skipping stitch 7 is located below the pressing frame 6, which improves the sewing effect of the sewing material. A sewing material surface cleaning and smoothing component 2 is fixedly mounted on the top of the workbench 1. The sewing material surface cleaning and smoothing component 2 is located on one side of the stretch sewing head 3, and can clean and smooth both sides of the sewing material at the same time. A lead wire tensioning component 4 is fixed on the other side of the stretch sewing head 3, and the tensioning degree of the lead wire can be adjusted according to the different sewing materials.

[0024] When the utility model is actually used, one end of the sewing material to be sewn is manually placed inside the sewing material surface cleaning and smoothing component 2. The sewing material surface cleaning and smoothing component 2 can fix and clamp sewing materials of different thicknesses, so as to facilitate the cleaning and ironing and smoothing of both sides of the sewing material at the same time, and can smooth out the wrinkles of the sewing material caused by storage and transportation during the processing, avoid the problem of affecting the production quality due to wrinkles on the surface of the sewing material, and improve the effect of subsequent sewing of the sewing material. At the same time, the lead wire is placed on the limiting frame 5, and the lead wire tensioning component 4 is used to adjust the tensioning length of the lead wire to ensure that the lead wire has a certain tightness and stability during sewing. For thin and soft fabrics, it is necessary to reduce the thread tension to avoid too tight stitches, and for thick fabrics, it is necessary to increase the thread tension to keep the stitches stable. The pressing frame 6 plays a vital auxiliary role in the sewing process, which can fix and move the sewing material on the workbench 1, and finally the sewing material is sewn by the cooperation of the stretch sewing machine head 3 and the skip stitch 7.

[0025] The sewing material surface cleaning and smoothing component 2 includes a lower mounting frame 201, the bottom of the lower mounting frame 201 is fixedly mounted on the top of the workbench 1, a telescopic rod 202 is fixedly mounted on the lower wall inside the lower mounting frame 201, and the telescopic rod 202 can stretch and contract to adjust the position of the lower mounting plate 203, and the lower mounting plate 203 is fixed on the top of the telescopic rod 202, an electric push rod 204 is fixedly mounted on the top of the lower mounting frame 201, and an upper mounting frame 205 is fixedly mounted on the top of the electric push rod 204, and one end of a connecting rod 206 is fixed on the upper wall inside the upper mounting frame 205, and the connecting rod 206 is used to connect the upper mounting frame 205 and the upper mounting plate 207, and an upper mounting plate 207 is fixed on the bottom of the connecting rod 206, and a cleaning piece 208 is fixedly mounted on the bottom of the upper mounting plate 207 and the top of the lower mounting plate 203, and a heat conducting block 209 is installed on the bottom of the upper mounting plate 207 and the top of the lower mounting plate 203, so that both sides of the sewing material can be cleaned and smoothed at the same time.

[0026] When the utility model is in use, the extension of the telescopic rod 202 can drive the lower mounting plate 203 and the cleaning piece 208 and the heat-conducting block 209 fixedly installed on the lower mounting plate 203 to move upward, and the extension and contraction of the electric push rod 204 can drive the cleaning piece 208 and the heat-conducting block 209 of the upper part to move, so that sewing materials of different thicknesses can be fixedly clamped, so that both sides of the sewing material can contact the cleaning piece 208 and the heat-conducting block 209 at the same time, and the cleaning piece 208 can clean the dust and thread ends attached to both sides of the sewing material, and the heat-conducting block 209 is provided with a heat-conducting wire inside, so that the sewing material can be ironed and smoothed, so as to avoid the problem of wrinkles on the surface of the sewing material affecting the production quality, and improve the effect of subsequent sewing of the sewing material.

[0027] The lead wire tensioning assembly 4 includes a fixed frame 401, one side of the fixed frame 401 is fixed on the other side of the interlock sewing machine head 3, and a rotating cover plate 402 is rotatably installed on the other side of the fixed frame 401. Both side walls of the fixed frame 401 are provided with wire openings 403 to facilitate the movement of the lead wire. A limiting plate 404 is fixed to the rear side of the fixed frame 401. There are two limiting plates 404, which have a limiting effect on the slider 407. A servo motor 405 is fixedly installed on the lower wall of the fixed frame 401. A threaded rod 406 is installed on the output end of the servo motor 405. A fixed block 4 is rotatably installed on the other end of the threaded rod 406. 09 on one side, and the other side of the fixed block 409 is fixed to the upper wall inside the fixed frame 401. The fixed block 409 has a fixing effect on the other end of the threaded rod 406. A slider 407 is slidably installed on the threaded rod 406. The slider 407 is threadedly connected to the threaded rod 406. The servo motor 405, the threaded rod 406, the fixed block 409 and the slider 407 are all located between the two limit plates 404. A first placement rack 408 is fixed on the front side of the slider 407, and a second placement rack 410 is fixed on the rear side of the fixed frame 401. The second placement rack 410 is located on both sides of the first placement rack 408 to avoid lead winding.

[0028] When the utility model is in use, the rotating cover plate 402 is manually rotated, and one end of the lead wire is wound around the second placement rack 410, the first placement rack 408 and the second placement rack 410 in sequence, the lead wire moves to the inside of the fixed rack 401 through one of the wire openings 403, and then moves out of the fixed rack 401 through the other wire opening 403, which is convenient for the use of the interlock sewing machine, and then the rotating cover plate 402 is rotated in the opposite direction. The rotating cover plate 402 can improve the sealing effect of the fixed rack 401, and the first placement rack 408 is located between the two second placement racks 410, which can avoid the lead wire from being entangled and affecting the sewing efficiency. The servo motor 405 drives the threaded rod 406 to rotate, and the two sides of the slider 407 are respectively in contact with the two limit plates 404. The limit plates 404 have a limiting effect on the slider 407, so that the slider 407 can move on the threaded rod 406 instead of rotating, so that the position of the first placement rack 408 can be adjusted, so that the tension of the lead wire can be adjusted according to the different sewing materials.

[0029] The above shows and describes the basic principles and main features of the invention and the advantages of the invention. Those skilled in the art should understand that the invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the invention. Without departing from the spirit and scope of the invention, the invention may have various changes and improvements, which shall fall within the scope of the invention to be protected. The scope of protection of the invention shall be defined by the attached claims and their equivalents.

Claims

1. A stretch sewing machine with a tensioning mechanism, comprising a workbench (1), a stretch sewing machine head (3), a limiting frame (5), a material holding frame (6) and a skip stitch (7), wherein the stretch sewing machine head (3) is fixedly mounted on the top of the workbench (1), the limiting frame (5) is fixedly mounted on the top of the workbench (1), the top of the material holding frame (6) is fixedly mounted on the stretch sewing machine head (3), the top of the skip stitch (7) is mounted on the stretch sewing machine head (3), and the bottom of the skip stitch (7) is located inside and below the material holding frame (6), characterized in that: A sewing material surface cleaning and smoothing component (2) is fixedly installed on the top of the workbench (1); the sewing material surface cleaning and smoothing component (2) is located on one side of the interlock sewing machine head (3); and a lead wire tensioning component (4) is fixed on the other side of the interlock sewing machine head (3).

2. The interlock sewing machine with a tensioning mechanism according to claim 1, characterized in that: The sewing material surface cleaning and smoothing component (2) comprises a lower mounting frame (201), the bottom of the lower mounting frame (201) is fixedly mounted on the top of the workbench (1), a telescopic rod (202) is fixedly mounted on the lower wall inside the lower mounting frame (201), and a lower mounting plate (203) is fixed on the top of the telescopic rod (202).

3. The interlock sewing machine with a tensioning mechanism according to claim 2, characterized in that: An electric push rod (204) is fixedly mounted on the top of the lower mounting frame (201), an upper mounting frame (205) is fixedly mounted on the top of the electric push rod (204), and one end of a connecting rod (206) is fixed on the inner upper wall of the upper mounting frame (205).

4. The interlock sewing machine with a tensioning mechanism according to claim 3, characterized in that: An upper mounting plate (207) is fixed at the bottom of the connecting rod (206), a cleaning piece (208) is fixedly mounted at the bottom of the upper mounting plate (207) and the top of the lower mounting plate (203), and a heat conduction block (209) is mounted at the bottom of the upper mounting plate (207) and the top of the lower mounting plate (203).

5. The interlock sewing machine with a tensioning mechanism according to claim 1, characterized in that: The lead wire tensioning assembly (4) comprises a fixing frame (401), one side of the fixing frame (401) is fixed to the other side of the interlock sewing machine head (3), a rotating cover plate (402) is rotatably mounted on the other side of the fixing frame (401), and wire passage openings (403) are provided on both side walls of the fixing frame (401).

6. The interlock sewing machine with a tensioning mechanism according to claim 5, characterized in that: A limiting plate (404) is fixed on the rear side of the fixing frame (401), a servo motor (405) is fixedly mounted on the lower wall of the fixing frame (401), and a threaded rod (406) is mounted on the output end of the servo motor (405).

7. The interlock sewing machine with a tensioning mechanism according to claim 6, characterized in that: The other end of the threaded rod (406) is rotatably mounted with one side of a fixed block (409), the other side of the fixed block (409) is fixed to the inner upper wall of the fixed frame (401), a slider (407) is slidably mounted on the threaded rod (406), the slider (407) is threadedly connected to the threaded rod (406), and the servo motor (405), the threaded rod (406), the fixed block (409) and the slider (407) are all located between the two limit plates (404).

8. The interlock sewing machine with a tensioning mechanism according to claim 7, characterized in that: A first placement rack (408) is fixed on the front side of the sliding block (407), and a second placement rack (410) is fixed on the rear side inside the fixing rack (401), and the second placement rack (410) is located on both sides of the first placement rack (408).

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