Corner seam lockstitch sewing machine with high sewing efficiency

Abstract

The utility model discloses an angle seam lockstitch sewing machine with high sewing efficiency, which belongs to the technical field of angle seam lockstitch sewing machines and comprises a workbench and a lockstitch sewing machine main body, the lockstitch sewing machine main body is arranged on the upper surface of the workbench, and a presser foot dismounting component is mounted on the outer surface of the lockstitch sewing machine main body. An edge cutting assembly is arranged on the upper surface of the workbench. The presser foot can be driven to move up and down through the electric push rod so as to reduce fatigue of manual operation, and the presser foot can be detached from the lockstitch sewing machine body through mutual cooperation of the mounting groove, the mounting block, the spring, the fixing block and the fixing groove so that the corresponding presser foot can be replaced according to different sewing requirements. The problems that friction damage is easily caused when a traditional presser foot makes contact with cloth for a long time, consequently, the cloth cannot move evenly and smoothly in the sewing process, and consequently stitches are uneven, thread jumping or clamping is caused are solved, it is guaranteed that the cloth moves more evenly and smoothly in the sewing process, and therefore the sewing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of corner seam flat sewing machines, and more specifically to a corner seam flat sewing machine with high sewing efficiency. Background Art

[0002] Corner seam lockstitch machines are also often called overlock machines or overlock machines. They are mainly used to process the edges of fabrics to prevent them from unraveling and provide a neat appearance. They are widely used in the garment manufacturing industry to complete the edge processing of side seams, cuffs, collars, etc.

[0003] When the existing corner-sewing flat-bed sewing machine is in use, the machine will be set to the flat-bed sewing mode for flat-bed sewing, and the presser foot pressure and thread tension will be adjusted to a level suitable for the current fabric, the upper thread and the lower thread will be threaded to ensure that the stitches will not be loose, and then the fabric will be placed under the presser foot, and the device will be started to sew. If overlock sewing is required, the machine will be switched to the overlock sewing mode, and the overlock sewing work will be started as described above, thereby completing the sewing work on the fabric.

[0004] In actual use of the prior art, the presser foot of a traditional corner sewing machine is usually fixedly installed thereon. Since the presser foot is easily damaged by friction due to long-term contact with the fabric, the fabric cannot move evenly and smoothly during the sewing process, resulting in uneven stitches, skipped stitches or jamming, thereby affecting the sewing quality. Therefore, a corner sewing machine with high sewing efficiency is proposed. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the utility model provides a corner-sewing lockstitch sewing machine with high sewing efficiency. The utility model can drive the presser foot to move up and down through an electric push rod to reduce fatigue of manual operation. The presser foot can be removed from the lockstitch sewing machine body through the mutual cooperation of the mounting groove, the mounting block, the spring, the fixing block and the fixing groove, so as to replace the corresponding presser foot according to different sewing needs, thereby avoiding the traditional presser foot from being easily damaged by friction due to long-term contact with the cloth, resulting in the cloth being unable to move evenly and smoothly during the sewing process, causing problems such as uneven stitches, skipped stitches or jamming.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A corner seam flat sewing machine with high sewing efficiency comprises a workbench and a flat sewing machine body, wherein the upper surface of the workbench is provided with the flat sewing machine body, the outer surface of the flat sewing machine body is installed with a presser foot disassembly assembly, and the upper surface of the workbench is provided with an edge cutting assembly; the presser foot disassembly assembly comprises an electric push rod fixedly mounted on the outer surface of the flat sewing machine body, the output shaft end of the electric push rod is fixedly connected with a mounting groove, the interior of the mounting groove is clamped with a mounting block, and the bottom of the mounting block is fixedly connected with a presser foot; the edge cutting assembly comprises a connecting plate fixedly mounted on the upper surface of the workbench, the interior of the connecting plate is provided with a sleeve, the inner wall of the sleeve is threadedly connected with a threaded rod, one end of the threaded rod is connected with a knife seat through a bearing, and the lower surface of the knife seat is fixedly connected with a blade.

[0010] Furthermore, two sliding rods are fixedly connected to the upper surface of the knife seat, and the outer surfaces of the sliding rods are slidably connected to the inner cavity of the connecting plate.

[0011] Furthermore, the other end of the sliding rod is fixedly connected to a limiting plate.

[0012] Furthermore, the other end of the threaded rod is fixedly connected to a rotating handle, and the outer surface of the rotating handle is sleeved with an anti-slip sleeve.

[0013] Furthermore, two movable grooves are provided inside the mounting block, the inner cavity of the movable groove is fixedly connected with a spring, one end of the spring is fixedly connected with a fixed block, a fixed groove is provided inside the mounting groove, and the fixed block is snap-fitted with the fixed groove.

[0014] Furthermore, a support block is fixedly connected to the bottom of the workbench, and a cross plate is fixedly connected between the support blocks.

[0015] Furthermore, a short plate is provided on the outer surface of the sewing machine body, a lighting lamp is provided on the outer surface of the short plate, and a sewing needle is provided on the outer surface of the sewing machine body.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] (1) In this solution, the electric push rod can drive the presser foot to move up and down to reduce fatigue caused by manual operation. The presser foot can be removed from the main body of the sewing machine by the cooperation of the mounting groove, the mounting block, the spring, the fixing block and the fixing groove, so that the corresponding presser foot can be replaced according to different sewing needs. This avoids the traditional presser foot from being easily damaged by friction due to long-term contact with the fabric, resulting in uneven stitches, skipped stitches or jamming of the fabric during the sewing process, and ensures that the fabric moves more evenly and smoothly during the sewing process, thereby improving sewing efficiency.

[0019] (2) The threaded rod, the blade, the knife seat and the slide rod cooperate with each other to remove the burrs of the fabric to be sewn, ensuring the neatness of the sewing edge, effectively avoiding the derailment and frayed edges of the fabric, and improving the appearance quality and durability of the finished product;

[0020] (3) The lighting can provide sufficient light for the sewing area, especially in low-light environments, which helps the operator see the fabric and sewing lines more clearly, thereby improving sewing accuracy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a side view of the overall structure of the utility model;

[0023] Figure 3 It is a partial structural cross-sectional view of the utility model as a whole;

[0024] Figure 4 It is a partial structural sectional view of the presser foot disassembly and assembly assembly of the utility model;

[0025] Figure 5 It is a partial structural exploded view of the presser foot disassembly and assembly assembly of the utility model.

[0026] Figure 6 It is a partial structural sectional view of the edge cutting assembly of the utility model.

[0027] Description of the numbers in the figure:

[0028] 1. Workbench; 101. Lockstitch sewing machine body;

[0029] 2. Presser foot disassembly and assembly components; 201. Electric push rod; 202. Mounting slot; 203. Presser foot; 204. Spring; 205. Fixed block; 206. Fixed slot; 207. Moving slot; 208. Mounting block;

[0030] 3. Edge cutting assembly; 301. Connecting plate; 302. Sleeve; 303. Threaded rod; 304. Knife holder; 305. Blade; 306. Sliding rod;

[0031] 4. Short board; 5. Lighting lamp; 6. Sewing needle. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0033] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] Example 1

[0036] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5 , which is the first embodiment of the utility model, and this embodiment provides a corner seam flat sewing machine with high sewing efficiency, including a workbench 1 and a flat sewing machine body 101, the upper surface of the workbench 1 is provided with the flat sewing machine body 101, and the outer surface of the flat sewing machine body 101 is installed with a presser foot disassembly assembly 2.

[0037] Specifically, the presser foot disassembly and assembly component 2 includes an electric push rod 201 fixedly installed on the outer surface of the sewing machine body 101, the output shaft end of the electric push rod 201 is fixedly connected with a mounting groove 202, the interior of the mounting groove 202 is clamped with a mounting block 208, the bottom of the mounting block 208 is fixedly connected with a presser foot 203, the interior of the mounting block 208 is provided with two movable grooves 207, the inner cavity of the movable groove 207 is fixedly connected with a spring 204, one end of the spring 204 is fixedly connected with a fixed block 205, the interior of the mounting groove 202 is provided with a fixed groove 206, and the fixed block 205 is clamped with the fixed groove 206.

[0038] Furthermore, the two fixed blocks 205 are moved toward each other, so that the fixed block 205 moves from the fixed groove 206 to the movable groove 207, further driving the spring 204 to be compressed, and then the presser foot 203 is pulled downward to make the mounting block 208 away from the mounting groove 202, so that the presser foot 203 can be quickly removed to replace or remove the presser foot 203. Conversely, the presser foot 203 can be installed, so that the corresponding presser foot 203 can be replaced according to different sewing needs, avoiding the traditional presser foot 203 from being easily damaged by friction due to long-term contact with the fabric.

[0039] Example 2

[0040] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5 , which is the second embodiment of the utility model, is based on the previous embodiment, and an edge cutting component 3 is provided on the upper surface of the workbench 1.

[0041] Specifically, the edge cutting assembly 3 includes a connecting plate 301 fixedly mounted on the upper surface of the workbench 1, a sleeve 302 is arranged inside the connecting plate 301, a threaded rod 303 is threadedly connected to the inner wall of the sleeve 302, one end of the threaded rod 303 is connected to a tool holder 304 through a bearing, a blade 305 is fixedly connected to the lower surface of the tool holder 304, two sliding rods 306 are fixedly connected to the upper surface of the tool holder 304, and the outer surface of the sliding rod 306 is slidably connected to the inner cavity of the connecting plate 301.

[0042] Furthermore, turning the rotating handle drives the threaded rod 303 to rotate in the sleeve 302, and this action will be converted into linear motion, causing the knife seat 304 to move downward, so that the knife seat 304 drives the blade 305 to cut the edge of the cloth and remove the burrs to ensure the neatness of the sewing edge. Further, when the knife seat 304 moves, it will drive the sliding rod 306 to slide in the connecting plate 301, so as to support the knife seat 304.

[0043] Working principle: When in use, the electric push rod 201 can drive the presser foot 203 to move up and down, so as to reduce the fatigue of manual operation and improve the sewing efficiency. Since the working principles and specific connection methods of the various components in the flat sewing machine body 101 belong to the prior art for those skilled in the art, they will not be described in detail here. Subsequently, the two fixed blocks 205 are moved in a direction close to each other, so that the fixed block 205 moves from the fixed groove 206 to the movable groove 207, further driving the spring 204 to be compressed, and then the presser foot 203 is pulled down to make the mounting block 208 away from the mounting groove 202, so that the presser foot 203 can be quickly removed for replacement or removal of the presser foot 203. Conversely, the presser foot 203 can be installed, so that the corresponding presser foot 203 can be replaced according to different sewing needs, avoiding the traditional presser foot 203 from being easily damaged by friction due to long-term contact with the cloth, resulting in the cloth being unable to move evenly and smoothly during the sewing process, causing problems such as uneven stitches, skipped stitches or jamming.

[0044] The cloth to be sewn is placed under the blade 305, ensuring that the edge of the cloth is aligned with the blade 305, and then the rotating handle is turned to drive the threaded rod 303 to rotate in the sleeve 302. This action will be converted into a linear motion, so that the knife seat 304 moves downward, so that the knife seat 304 drives the blade 305 to cut the edge of the cloth and remove the burrs to ensure the neatness of the sewing edge. Further, when the knife seat 304 moves, it will drive the sliding rod 306 to slide in the connecting plate 301 to support the knife seat 304; at the same time, the lighting lamp 5 can provide sufficient light for the sewing area, especially in an environment with insufficient light, which helps the operator to see the cloth and sewing stitches more clearly, thereby improving sewing accuracy and efficiency.

[0045] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A corner seam lockstitch sewing machine with high sewing efficiency, comprising a workbench (1) and a lockstitch sewing machine body (101), wherein the lockstitch sewing machine body (101) is arranged on the upper surface of the workbench (1), characterized in that: The outer surface of the sewing machine body (101) is provided with a presser foot disassembly assembly (2), and the upper surface of the workbench (1) is provided with an edge cutting assembly (3); The presser foot disassembly and assembly component (2) comprises an electric push rod (201) fixedly mounted on the outer surface of a sewing machine body (101); an output shaft end of the electric push rod (201) is fixedly connected to a mounting groove (202); a mounting block (208) is clamped inside the mounting groove (202); and a presser foot (203) is fixedly connected to the bottom of the mounting block (208); The edge cutting assembly (3) comprises a connecting plate (301) fixedly mounted on the upper surface of the workbench (1), a sleeve (302) being arranged inside the connecting plate (301), a threaded rod (303) being threadedly connected to the inner wall of the sleeve (302), one end of the threaded rod (303) being connected to a knife seat (304) via a bearing, and a blade (305) being fixedly connected to the lower surface of the knife seat (304).

2. The corner seam lockstitch sewing machine with high sewing efficiency according to claim 1, characterized in that: Two sliding rods (306) are fixedly connected to the upper surface of the knife seat (304), and the outer surface of the sliding rod (306) is slidably connected to the inner cavity of the connecting plate (301).

3. The corner seam lockstitch sewing machine with high sewing efficiency according to claim 2, characterized in that: The other end of the sliding rod (306) is fixedly connected to a limiting plate.

4. The corner seam lockstitch sewing machine with high sewing efficiency according to claim 1, characterized in that: The other end of the threaded rod (303) is fixedly connected to a rotating handle, and the outer surface of the rotating handle is sleeved with an anti-slip sleeve.

5. The corner seam lockstitch sewing machine with high sewing efficiency according to claim 1, characterized in that: Two movable grooves (207) are provided inside the installation block (208); a spring (204) is fixedly connected to the inner cavity of the movable groove (207); one end of the spring (204) is fixedly connected to a fixed block (205); a fixed groove (206) is provided inside the installation groove (202); and the fixed block (205) is snap-fitted with the fixed groove (206).

6. The corner seam lockstitch sewing machine with high sewing efficiency according to claim 1, characterized in that: The bottom of the workbench (1) is fixedly connected to a support block (102), and a transverse plate is fixedly connected between the support blocks (102).

7. The corner seam lockstitch sewing machine with high sewing efficiency according to claim 1, characterized in that: The outer surface of the flat-bed sewing machine body (101) is provided with a short plate (4), the outer surface of the short plate (4) is provided with an illuminating lamp (5), and the outer surface of the flat-bed sewing machine body (101) is provided with a sewing needle (6).

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