Sewing machine
By integrating a shear knife on the sewing machine, the problem of frequent manual cutting of sewing thread during the sewing edge closure process is solved, and fast and convenient sewing thread cutting is achieved, improving production efficiency.
Patent Information
- Application Number
- CN202421101800.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-20
AI Technical Summary
During the sewing and edge tying process, sewing threads need to be cut frequently manually, resulting in cumbersome operation steps and affecting production efficiency.
Design a sewing machine with a shear knife. The shear knife is installed on the support seat. The staff can pull the sewing thread to the position of the shear knife and use the shear knife to cut the sewing thread.
It realizes fast and convenient cutting of sewing threads, optimizes operating procedures, and improves production efficiency.
Smart Images
Figure CN222499639U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of sewing equipment, and in particular to a sewing machine. Background Art
[0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material, so that one or more layers of sewing materials are interwoven or sewn together. A sewing machine can sew fabrics such as cotton, linen, silk, wool, and synthetic fibers, as well as products such as leather, plastic, and paper. The stitches are neat, beautiful, flat, and firm, and the sewing speed is fast and easy to use.
[0003] Regarding the above-mentioned related technologies, during the sewing process, there will still be sewing threads between the fabric and the sewing needle. In order to facilitate the subsequent sewing of the fabric, it is usually necessary to manually cut the sewing threads with scissors. However, after sewing a piece of fabric, it is necessary to pick up the scissors to cut the threads. This operation step is relatively troublesome and easily affects the production efficiency, so it needs to be improved. Utility Model Content
[0004] In order to facilitate the staff to cut the sewing thread and improve production efficiency, the present application provides a sewing machine.
[0005] The present application provides a sewing machine that adopts the following technical solution:
[0006] A sewing machine comprises a sewing machine head, a needle bar, a cloth presser foot and a support seat, wherein the needle bar is arranged on the sewing machine head and is used for sewing cloth; the support seat is located below the needle bar and is connected to the sewing machine head, and the support seat serves as a sewing plane; the cloth presser foot is arranged on the sewing machine head, and is used for pressing cloth onto the support seat; and further comprises a shearing knife, which is arranged on the support seat, has a knife groove, and is used for cutting sewing thread.
[0007] By adopting the above technical solution, when the cloth needs to be sewn, the staff first places the cloth on the support seat, and then presses the cloth with the cloth presser foot; then controls the sewing machine head to drive the needle bar to sew the cloth. After sewing, the staff can pull the sewing thread to the position of the shear knife, and rely on the sharpness of the shear knife to cut the sewing thread, so as to quickly cut the sewing thread and improve production efficiency.
[0008] Preferably, the shearing knife comprises a shearing portion and a mounting portion which are integrally connected, the shearing portion is provided with a V-shaped knife groove, and the mounting portion is locked to the support seat by a fastener.
[0009] By adopting the above technical solution, the knife groove of the shearing part is used to cut the sewing thread, and the mounting part is locked on the supporting seat by a fastener, so that the shearing knife can be detached. When the shearing part becomes blunt after long-term use, the shearing knife can be replaced at this time, thereby reducing the situation where the sewing thread is difficult to cut.
[0010] Preferably, the fastener is a fastening bolt or a fastening screw, the mounting portion is provided with a clearance hole, the fastening bolt or the fastening screw passes through the clearance hole and is screwed onto the support seat.
[0011] By adopting the above technical solution, the fastening bolts or fastening screws are common detachable objects, so that the shearing knife can be disassembled and replaced.
[0012] Preferably, a protective shell is rotatably connected to the support seat, and the protective shell is used to shield the shearing knife.
[0013] By adopting the above technical solution, when the sewing machine is working, the staff can open the protective shell to expose the shear knife and cut the sewing thread; when the sewing machine is idle, the protective shell is rotated and clamped on the support seat, and the protective shell can play a role of blocking and protecting the shear knife, reducing the possibility of the shear knife scratching people.
[0014] Preferably, it also includes a lead assembly, which is arranged on one side of the sewing machine head and is used to pull the sewing thread.
[0015] By adopting the above technical solution, the lead-in assembly is used to pull the sewing thread and provide the sewing thread for the sewing machine head, thereby ensuring the normal operation of the sewing machine head.
[0016] Preferably, the lead-in assembly includes a bracket, a fixing rod and a fixing block, the bracket is located on one side of the sewing machine head, the fixing rod is connected to the bracket and is used to limit the winding line; the fixing block is arranged on the bracket and is provided with a through hole, and the through hole is used for the sewing thread to pass through.
[0017] By adopting the above technical solution, the bracket is used as a supporting carrier for placing the winding wire; the fixing rod can pass through the hollow part of the winding wire, thereby limiting the position of the winding wire; one end of the winding wire passes through the through hole and extends to the position of the needle rod.
[0018] Preferably, the sewing machine head is also provided with a lighting lamp, which is located above the support seat and is used for lighting.
[0019] By adopting the above technical solution, the lighting lamp can provide lighting, allowing the staff to see the situation on the support seat more clearly, thereby facilitating the sewing work.
[0020] Preferably, it also includes a foot switch, which is connected to the sewing machine head and is used to control the operation of the needle bar.
[0021] By adopting the above technical solution, the staff can use the foot switch to control the operation of the sewing machine head, realize the use of hands and feet, and improve production efficiency.
[0022] In summary, the present application includes at least one of the following beneficial technical effects:
[0023] (1) By setting up a shear knife, after the workers have sewn the fabric, they can pull the sewing thread to the position of the shear knife and use the blade of the shear knife to cut the sewing thread. In this way, the workers do not need to pick up scissors to cut the sewing thread, which optimizes the operation procedures and improves production efficiency.
[0024] (2) By providing a protective shell, when the shear knife is not in use, the protective shell can be rotated to place the shear knife cover inside the protective shell, thereby reducing the possibility of the staff directly touching the shear knife.
[0025] (3) By setting up a lead thread assembly, the lead thread assembly can play a pulling role on the sewing thread, reducing the possibility of messy lines during the sewing process. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 is a schematic diagram of the structure of a sewing machine in an embodiment of the present application;
[0027] Figure 2 It is a partial structural schematic diagram of a sewing machine in an embodiment of the present application;
[0028] Figure 3 is a schematic diagram of the structure of a shearing knife in an embodiment of the present application;
[0029] Figure 4 It is a schematic diagram of the structure of the lead assembly in the embodiment of the present application.
[0030] Figure numerals: 1, sewing machine head; 2, needle bar; 3, cloth presser foot; 4, support seat; 5, lighting lamp; 6, foot switch; 7, shear knife; 71, shearing part; 72, mounting part; 8, fastener; 9, knife groove; 10, protective shell; 11, lead assembly; 111, bracket; 112, fixing rod; 113, fixing block; 12, through hole. DETAILED DESCRIPTION
[0031] The technical solution of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The present application can be embodied in many different forms and is not limited to the embodiments described here.
[0032] In the description of the present application, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics represented in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics represented can be combined in any one or more embodiments or examples in a suitable manner.
[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.
[0034] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection; it can also be a detachable connection; or integrated; it can also be a mechanical connection. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.
[0035] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples shown in the present application.
[0036] The present application embodiment discloses a sewing machine. Figure 1 and Figure 2 The sewing machine comprises a sewing machine head 1, a needle bar 2, a cloth presser foot 3 and a support seat 4. The sewing machine head 1 is placed on the table top of the workbench, and the needle bar 2 is installed on the sewing machine head 1 in the vertical direction, and the needle bar 2 is used to sew the cloth. The support seat 4 is fixedly connected to the sewing machine head 1 and is located below the needle bar 2. The support seat 4 serves as a sewing plane, so that the needle bar 2 can sew on the support seat 4. The cloth presser foot 3 is also installed on the sewing machine head 1, and the cloth presser foot 3 is used to press the cloth to be sewn on the support seat 4. Among them, a lighting lamp 5 is also fixedly installed on the sewing machine head 1, and the lighting lamp 5 is located above the support seat 4. The lighting lamp 5 is used to illuminate the plane where the support seat 4 is located. A foot switch 6 is also installed below the workbench, and the foot switch 6 is connected to the sewing machine head 1, and the foot switch 6 is used to control the operation of the needle bar 2.
[0037] When the cloth needs to be sewn, the worker first places the cloth on the support seat 4, and then uses the cloth presser foot 3 to press the cloth; then uses the foot switch 6 to control the sewing machine head 1 to drive the needle bar 2 to sew the cloth. The whole sewing process can be achieved by using both hands and feet, thereby improving production efficiency. The lighting lamp 5 can provide lighting light, so that the worker can see the situation on the support seat 4 more clearly, which is convenient for sewing work.
[0038] Specific, combined Figure 3 , a shearing knife 7 is installed on the support seat 4, and the shearing knife 7 is used to cut the sewing thread. The shearing knife 7 includes a shearing portion 71 and a mounting portion 72 that are integrally connected, and the mounting portion 72 is locked to the support seat 4 by a fastener 8. The fastener 8 is a fastening bolt or a fastening screw. In this embodiment, a fastening bolt is used for explanation. A clearance hole is opened through the mounting portion 72, and the fastening bolt passes through the clearance hole and is screwed on the support seat 4 to realize the detachable connection between the shearing knife 7 and the support seat 4. A V-shaped knife groove 9 is opened at one end of the shearing portion 71, and the shearing portion 71 is used to cut the sewing thread.
[0039] After the fabric is sewn, the staff can pull the sewing thread to the position of the shearing knife 7, and rely on the sharpness of the shearing portion 71 to cut the sewing thread, thereby quickly cutting the sewing thread. In this way, the staff does not need to pick up scissors to cut the sewing thread, which optimizes the operation procedure and improves the production efficiency. When the shearing portion 71 becomes blunt after long-term use, the fastening bolt can be unscrewed, and then the shearing knife 7 can be replaced to reduce the situation where the sewing thread is difficult to cut due to the bluntness of the shearing knife 7.
[0040] In addition, a protective shell 10 is installed on the support seat 4. The protective shell 10 is made of hard plastic, so that the overall weight of the protective shell 10 is relatively light; the protective shell 10 can be rotatably connected to the support seat 4 to cover the shearing knife 7. When the sewing machine is working, the staff can apply force to open the protective shell 10 so that the shearing knife 7 is exposed to achieve the cutting of the sewing thread; when the sewing machine is idle, the protective shell 10 is rotated and clamped on the support seat 4, and the protective shell 10 can play a role of blocking and protecting the shearing knife 7, reducing the possibility of the shearing knife 7 scratching people.
[0041] According to some embodiments of the present application, optionally, please refer to Figure 4. A lead assembly 11 is also installed on one side of the sewing machine head 1. The lead assembly 11 is used to pull the sewing thread, so as to ensure the normal operation of the sewing machine head 1. Specifically, the lead assembly 11 includes a bracket 111, a fixed rod 112 and a fixed block 113. The bracket 111 is placed on the workbench for placing the reel wire; the fixed rod 112 is vertically arranged and fixedly connected to the bracket 111. The fixed rod 112 passes through the hollow part of the reel wire and is used to limit the reel wire. The fixed block 113 is fixed on the bracket 111 and is provided with a closed through hole 12. The through hole 12 is used for the sewing thread to pass through. The thread end of the sewing thread passes through and extends to the position of the needle bar 2, thereby providing sewing thread for the sewing machine.
[0042] The implementation principle of a sewing machine in the embodiment of the present application is as follows: when the cloth needs to be sewn, the staff first places the cloth on the support seat 4, and then presses the cloth with the cloth presser foot 3; then the foot switch 6 is used to control the sewing machine head 1 to drive the needle bar 2 to sew the cloth. After the cloth is sewn, the staff can pull the sewing thread to the position of the shear knife 7, and rely on the sharpness of the shearing part 71 to cut the sewing thread, so as to quickly cut the sewing thread. In this way, the staff does not need to pick up scissors to cut the sewing thread, which optimizes the operation procedure and improves the production efficiency.
[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A sewing machine, comprising a sewing machine head (1), a needle bar (2), a cloth presser foot (3) and a support seat (4), wherein the needle bar (2) is arranged on the sewing machine head (1) and is used for sewing cloth; the support seat (4) is located below the needle bar (2) and is connected to the sewing machine head (1), and the support seat (4) serves as a sewing plane; the cloth presser foot (3) is arranged on the sewing machine head (1), and is used for pressing cloth onto the support seat (4); characterized in that: It also comprises a shearing knife (7), wherein the shearing knife (7) is arranged on the supporting seat (4), the shearing knife (7) has a knife groove (9) and is used for cutting the sewing thread; The shearing knife (7) comprises a shearing portion (71) and a mounting portion (72) which are integrally connected, the shearing portion (71) being provided with a V-shaped knife groove (9), and the mounting portion (72) being locked to the support seat (4) via a fastener (8); The fastener (8) is a fastening bolt or a fastening screw, the mounting portion (72) is provided with a clearance hole, the fastening bolt or the fastening screw passes through the clearance hole and is screwed onto the support seat (4); The support seat (4) is also rotatably connected to a protective shell (10), and the protective shell (10) is used to shield the shearing knife (7); It also comprises a lead thread assembly (11), wherein the lead thread assembly (11) is arranged on one side of the sewing machine head (1) and is used to pull the sewing thread; The lead wire assembly (11) comprises a bracket (111), a fixing rod (112) and a fixing block (113); the bracket (111) is located on one side of the sewing machine head (1); the fixing rod (112) is connected to the bracket (111) and is used to limit the position of the reel wire; the fixing block (113) is arranged on the bracket (111) and is provided with a through hole (12); the through hole (12) is used for the sewing wire to pass through; The sewing machine head (1) is also provided with a lighting lamp (5), the lighting lamp (5) being located above the support seat (4) and used for lighting; It also comprises a foot switch (6), wherein the foot switch (6) is connected to the sewing machine head (1) and is used to control the operation of the needle bar (2).