Sticking strip cutting mechanism of sewing machine

By designing a cutting mechanism and feed assembly on the sewing machine, the problem of inconsistent manual cutting was solved, achieving high-precision cutting and stable feeding, thus improving the cutting accuracy and product quality of the sewing machine.

CN223646758UActive Publication Date: 2025-12-09JINGU NEW MATERIALS TECHNOLOGY (JIANGSU) CO LTD
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Patent Information

Application Number
CN202520219324.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-12
Publication Date
2025-12-09
Estimated Expiration
2035-02-12

AI Technical Summary

Technical Problem

Existing sewing machines require manual cutting after sewing fabric strips, resulting in inconsistent cutting lengths and quality, which affects the overall appearance and quality of the product.

Method used

A sewing machine tape cutting mechanism was designed, comprising a cutting mechanism and a tape feeding assembly, to achieve high-precision cutting and stable feeding, ensuring accurate tape size and shape, and facilitating the replacement of different types of cutting blades.

Benefits of technology

This improves product consistency and quality, reduces sewing errors caused by strip swaying, and ensures sewing accuracy and quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sewing machine joint strip cutting mechanism, which relates to the technical field of sewing machines, and comprises a fixed bedplate, a cutting mechanism arranged above the fixed bedplate and used for cutting a joint strip for a sewing machine, and a strip conveying assembly arranged above the fixed bedplate and used for conveying the joint strip to the sewing machine. The sewing machine joint strip cutting mechanism is used for conveying a joint strip for a sewing machine, the cutting mechanism comprises a mounting box, the mounting box is arranged on the outer wall of a fixed table plate, the sewing machine joint strip cutting mechanism is provided with the cutting mechanism, high-precision cutting can be achieved through the cutting mechanism, it is guaranteed that the size and shape of the strip are accurate, and the consistency and quality of products are improved; the cutting blade is convenient to replace through the installation assembly of the cutting blade, and blades of different types and specifications can be replaced conveniently according to different cutting requirements, such as a straight cutter, a circular cutter and a serrated cutter, so that the requirements of various cloth and cutting processes are met.
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Description

Technical Field

[0001] This utility model relates to the field of sewing machine technology, specifically to a sewing machine tape cutting mechanism. Background Technology

[0002] A flatbed sewing machine is a machine that uses a single thread to create a stitch on the fabric, allowing one or more layers of fabric to interweave or sew together. It is generally divided into two types: one for thin materials and one for thick materials. Flatbed sewing machines can sew fabrics such as cotton, linen, silk, wool, and synthetic fibers, as well as products made of leather, plastic, and paper. Thin materials are generally used for knitwear, underwear, shirts, and uniforms, while thick materials are generally used for various sportswear, denim, fashion apparel, coats, shoes, hats, leather goods, and bags. The flatbed sewing machine is the most basic type of sewing equipment. It produces the simplest stitch, resulting in neat, beautiful, even, flat, and strong stitches. It is fast, easy to operate, and simple to understand.

[0003] A flatbed sewing machine, authorized by CN216107525U, relates to the technical field of sewing machines. It addresses the problem that flatbed sewing machines require manual visual inspection of stitch neatness during sewing, leading to skewing. The invention includes a worktable with the sewing machine body mounted on its upper surface and support legs symmetrically arranged on its lower surface. Mounting slots are provided on both the front and rear sides of the worktable. A conveying mechanism is located outside the worktable and connected to the mounting slots. A limit strip is provided on the outer wall of the conveying mechanism, located on the side closest to the sewing machine body. In use, fabric is placed on the first and second conveyor belts with its edges against the limit strip. The user then presses a pedal to control the sewing machine body, enabling sewing. The limit strip restricts the fabric's position, providing more precise neatness than manual inspection and minimizing skewing, thus making the invention more user-friendly.

[0004] As shown in the above equipment, although the limiting strip of the existing sewing machine can restrict the position of the fabric and is more accurate than the neatness of the fabric by visual inspection, it is still necessary to cut the fabric strip manually after the machine sews the strips. However, manual cutting is difficult to guarantee that the length and quality of each cut are consistent, which may result in uneven fabric strips and affect the overall appearance and quality of the product. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a sewing machine tape cutting mechanism, which solves the problems of existing technologies.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sewing machine tape applicator cutting mechanism, comprising a fixed platform, and further comprising:

[0007] A cutting mechanism, which is disposed above a fixed platform, is used to cut the sewing machine tape.

[0008] The feed assembly, located above the fixed platform, is used to feed the sewing machine's tape.

[0009] The cutting mechanism includes a mounting box disposed on the outer wall of a fixed platform. The outer wall of the mounting box has a groove. A drive assembly A is fixedly mounted at one end of the mounting box, and a base is fixedly mounted at the bottom end of the drive assembly A. An electric push rod is fixedly connected to the output end of the drive assembly A, and a circular groove guide plate is fixedly mounted at the other end of the electric push rod. A fixed slide plate is slidably connected to the outer wall of the circular groove guide plate, and a screw hole is provided on the outer wall of the fixed slide plate. A box cover is connected to the mounting box via the screw hole and bolts. A grooved plate is provided on the inner wall of the box cover. A limit post is slidably connected to the inner wall of the circular groove guide plate, and mounting assemblies are provided at both ends of the limit post. A cutting blade is connected to the mounting box via the mounting assemblies.

[0010] Preferably, the mounting assembly includes a connecting plate, a limiting slide plate is fixedly mounted on the outer wall of the connecting plate, the limiting slide plate is slidably connected to a groove, a rotating plate is rotatably mounted on the outer wall of the connecting plate, a threaded rod is fixedly mounted on one end of the rotating plate, the threaded rod is rotatably mounted on the inner wall of the connecting plate, a movable clamping plate is threadedly connected to the outer wall of the threaded rod, a placement groove is formed on the outer wall of the movable clamping plate, a limiting slide plate is fixedly mounted on the inner wall of the connecting plate, and the movable clamping plate is slidably connected to the outer wall of the limiting slide plate.

[0011] Preferably, the conveying assembly includes a conveying box, which is disposed above the fixed platform. The outer wall of the conveying box has a feed inlet and a discharge outlet. A ramp is fixedly installed on the outer wall of the conveying box. A drive seat is fixedly installed on the inner wall of the conveying box. A rotating roller is provided on the outer wall of the drive seat. A drive assembly B is fixedly connected to the bottom end of the drive seat.

[0012] Preferably, a processing table is fixedly installed on the top of the fixed platform for placing processing materials. The fixed platform is connected to the feed assembly through the processing table. A sewing machine body is fixedly installed on the top of the fixed platform for fabric processing.

[0013] Preferably, a support frame is fixedly installed at the bottom of the fixed platform for stable support of the entire equipment, and a pedal is provided on the outer wall of the support frame for operation of the sewing machine body.

[0014] Preferably, a control switch is fixedly installed at the bottom of the fixed platform, and a connecting frame is fixedly installed on the outer wall of the fixed platform, and the fixed platform is connected to the base through the connecting frame.

[0015] This invention provides a sewing machine tape cutting mechanism. Compared with the prior art, it has the following advantages:

[0016] 1. The sewing machine's tape cutting mechanism is equipped with a cutting mechanism, which enables high-precision cutting, ensuring accurate tape size and shape, improving product consistency and quality. The cutting blade mounting assembly facilitates blade replacement, allowing for the use of different types and specifications of blades, such as straight blades, round blades, and toothed blades, to meet the requirements of various fabrics and cutting processes.

[0017] 2. The tape cutting mechanism of this sewing machine is equipped with a tape feeding assembly. The tape feeding assembly can ensure the smooth movement of the tape during the sewing process, reduce sewing errors caused by tape shaking or movement, and improve sewing accuracy and quality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the cutting mechanism of this utility model;

[0020] Figure 3 This is a cross-sectional view of the cutting mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the installation components of this utility model;

[0022] Figure 5 This is a side view of the mounting components of this utility model;

[0023] Figure 6 This is a schematic diagram of the material conveying assembly of this utility model;

[0024] Figure 7 for Figure 3 A schematic diagram of the circular groove guide plate.

[0025] In the diagram: 1. Fixed platform; 2. Support frame; 3. Pedal; 4. Sewing machine body; 5. Processing table; 6. Cutting mechanism; 61. Mounting box; 62. Drive assembly A; 63. Base; 64. Box cover; 65. Fixed slide plate; 66. Circular groove guide plate; 67. Screw hole; 68. Electric push rod; 69. Mounting assembly; 691. Connecting plate; 692. Limiting slide plate; 693. Rotating plate; 694. Threaded rod; 695. Movable clamping plate; 696. Placement slot; 697. Limiting slide plate; 610. Limiting post; 611. Cutting blade; 7. Feeding assembly; 71. Feeding box; 72. Outlet; 73. Inlet; 74. Inclined plate; 75. Drive base; 76. Rotating roller; 77. Drive assembly B. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] See Figures 1-7 This utility model provides the following two technical solutions:

[0028] First embodiment: A sewing machine tape cutting mechanism, including a fixed platform 1, and further comprising:

[0029] Cutting mechanism 6 is located above the fixed platform 1 and is used to cut the sewing machine tape.

[0030] The feed strip assembly 7 is located above the fixed platform 1 and is used for feeding the sewing machine's feed strip.

[0031] A processing table 5 is fixedly installed on the top of the fixed platform 1 for placing processing materials. The fixed platform 1 is connected to the feed assembly 7 through the processing table 5. The sewing machine body 4 is fixedly installed on the top of the fixed platform 1 for fabric processing.

[0032] A control switch is fixedly installed at the bottom of the fixed platform 1, and a support frame 2 is fixedly installed at the bottom of the fixed platform 1 for stable support of the entire equipment. A pedal 3 is provided on the outer wall of the support frame 2 for operation of the sewing machine body 4.

[0033] A connecting frame is fixedly installed on the outer wall of the fixed platform 1, and the fixed platform 1 is connected to the base 63 through the connecting frame.

[0034] The cutting mechanism 6 includes a mounting box 61, which is disposed on the outer wall of the fixed platform 1. The outer wall of the mounting box 61 has a groove. A drive assembly A62 is fixedly installed at one end of the mounting box 61. A base 63 is fixedly installed at the bottom end of the drive assembly A62. An electric push rod 68 is fixedly connected to the output end of the drive assembly A62. A circular groove guide plate 66 is fixedly installed at the other end of the electric push rod 68. A fixed slide plate 65 is slidably connected to the outer wall of the circular groove guide plate 66. A screw hole 67 is provided on the outer wall of the fixed slide plate 65. The mounting box 61 is bolted to a box cover 64 through the screw hole 67. A groove plate is provided on the inner wall of the box cover 64. A limit post 610 is slidably connected to the inner wall of the circular groove guide plate 66. Mounting assemblies 69 are provided at both ends of the limit post 610. A cutting blade 611 is connected to the mounting box 61 through the mounting assembly 69.

[0035] Mounting assembly 69 includes a connecting plate 691. A limiting slide plate 692 is fixedly mounted on the outer wall of the connecting plate 691. The limiting slide plate 692 is slidably connected in a groove. A rotating plate 693 is rotatably mounted on the outer wall of the connecting plate 691. A threaded rod 694 is fixedly mounted on one end of the rotating plate 693. The threaded rod 694 is rotatably mounted on the inner wall of the connecting plate 691. A movable clamping plate 695 is threadedly connected to the outer wall of the threaded rod 694. A placement groove 696 is opened on the outer wall of the movable clamping plate 695. A limiting slide plate 697 is fixedly mounted on the inner wall of the connecting plate 691. The movable clamping plate 695 is slidably connected to the outer wall of the limiting slide plate 697.

[0036] The sewing machine's tape cutting mechanism is equipped with a cutting mechanism 6, which enables high-precision cutting, ensuring accurate tape size and shape, and improving product consistency and quality. The mounting component 69 of the cutting blade 611 facilitates blade replacement, allowing for the use of different types and specifications of blades, such as straight blades, round blades, and toothed blades, to meet the requirements of various fabrics and cutting processes.

[0037] The second embodiment differs from the first embodiment in that the conveying assembly 7 includes a conveying box 71, which is disposed above the fixed platform 1. The outer wall of the conveying box 71 has an inlet 73 and an outlet 72. A ramp 74 is fixedly installed on the outer wall of the conveying box 71. A drive seat 75 is fixedly installed on the inner wall of the conveying box 71. A rotating roller 76 is provided on the outer wall of the drive seat 75. A drive assembly B77 is fixedly connected to the bottom end of the drive seat 75.

[0038] The sewing machine's tape cutting mechanism is equipped with a tape feeding assembly 7. The tape feeding assembly 7 ensures smooth movement of the tape during the sewing process, reducing sewing errors caused by tape swaying or movement, and improving sewing accuracy and quality.

[0039] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used.

[0040] When fabric processing is required, the fabric is first placed on the processing table 5. Then, the drive assembly B77 is activated by the control switch, causing the rotating roller 76 on the drive base 75 to rotate. One end of the fabric strip is then inserted into the feed box 71 via the ramp 74 and the feed inlet 73. Once inside the feed box 71, the rotating roller 76 moves the fabric strip, which is then output from the outlet 72 to the processing area on the processing table 5 for use with the fabric. The sewing machine body 4 is then operated by the pedal 3 to process the fabric strip. After the fabric strips on the processing table 5 are processed by the sewing machine body 4, when the fabric strips need to be cut, the drive component A62 is started by the control switch to drive the electric push rod 68 connected to its output end to extend and retract. With the limit of the fixed slide plate 65, the circular groove guide plate 66 at one end of the electric push rod 68 moves laterally. As the circular groove guide plate 66 moves laterally, it is then limited by the limit post 610, which drives the mounting component 69 and the cutting blades 611 to move. The fabric strips can be cut by the inward movement of the four cutting blades 611.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sewing machine tape cutting mechanism, comprising a fixed table (1), characterized in that, Also includes: Cutting mechanism (6), which is located above the fixed platform (1) and is used to cut the strips used by the sewing machine during the production of cleanroom garments; The feed strip assembly (7) is located above the fixed platform (1) and is used to feed the sewing machine feed strip; The cutting mechanism (6) includes a mounting box (61), which is disposed on the outer wall of the fixed platform (1). The outer wall of the mounting box (61) has a groove. A drive assembly A (62) is fixedly installed at one end of the mounting box (61). A base (63) is fixedly installed at the bottom end of the drive assembly A (62). An electric push rod (68) is fixedly connected to the output end of the drive assembly A (62). A circular groove guide plate (66) is fixedly installed at the other end of the electric push rod (68). The outer wall of (66) is slidably connected to a fixed slide plate (65), and the outer wall of the fixed slide plate (65) is provided with a screw hole (67). The mounting box (61) is connected to a box cover (64) by bolts through the screw hole (67). The inner wall of the box cover (64) is provided with a groove plate. The inner wall of the circular groove guide plate (66) is slidably connected to a limit post (610). The two ends of the limit post (610) are provided with mounting components (69). The mounting box (61) is connected to a cutting blade (611) through the mounting components (69).

2. The sewing machine tape cutting mechanism according to claim 1, characterized in that: The mounting assembly (69) includes a connecting plate (691), a limiting slide plate (692) fixedly mounted on the outer wall of the connecting plate (691), the limiting slide plate (692) being slidably connected in a groove, a rotating plate (693) being rotatably mounted on the outer wall of the connecting plate (691), a threaded rod (694) being fixedly mounted on one end of the rotating plate (693), the threaded rod (694) being rotatably mounted on the inner wall of the connecting plate (691), a movable clamping plate (695) being threadedly connected to the outer wall of the threaded rod (694), a placement groove (696) being provided on the outer wall of the movable clamping plate (695), a limiting slide plate (697) being fixedly mounted on the inner wall of the connecting plate (691), and the movable clamping plate (695) being slidably connected to the outer wall of the limiting slide plate (697).

3. The sewing machine tape cutting mechanism according to claim 1, characterized in that: The conveying assembly (7) includes a conveying box (71), which is located above the fixed platform (1). The outer wall of the conveying box (71) has an inlet (73) and an outlet (72). A ramp (74) is fixedly installed on the outer wall of the conveying box (71). A drive seat (75) is fixedly installed on the inner wall of the conveying box (71). A rotating roller (76) is provided on the outer wall of the drive seat (75). A drive assembly B (77) is fixedly connected to the bottom end of the drive seat (75).

4. The sewing machine tape cutting mechanism according to claim 1, characterized in that: The top of the fixed platform (1) is fixedly installed with a processing table (5) for placing processing materials. The fixed platform (1) is connected to the feed assembly (7) through the processing table (5). The top of the fixed platform (1) is fixedly installed with a sewing machine body (4) for fabric processing.

5. The sewing machine tape cutting mechanism according to claim 1, characterized in that: The bottom end of the fixed platform (1) is fixedly installed with a support frame (2) for the stable support of the whole equipment. The outer wall of the support frame (2) is provided with a pedal (3) for the operation of the sewing machine body (4).

6. The sewing machine tape cutting mechanism according to claim 1, characterized in that: A control switch is fixedly installed at the bottom of the fixed platform (1), and a connecting frame is fixedly installed on the outer wall of the fixed platform (1). The fixed platform (1) is connected to the base (63) through the connecting frame.

Citation Information

Patent Citations

  • Flatcar sewing machine

    CN216107525U