Trimming device of button sewing machine

Abstract

The utility model discloses a trimming device of a button sewing machine, which relates to the field of button sewing machines, and comprises a mounting rack, the inner wall of the mounting rack is fixedly connected with a positioning rod, the outer wall of the positioning rod is fixedly connected with an electric push rod, one end of the electric push rod is fixedly connected with a moving rack, the inner wall of the moving rack is adhered with a first magnetic block, and the inner wall of the moving rack is adhered with a second magnetic block. And a connecting hook is installed on the inner wall of the moving frame, a second magnetic block adheres to the outer wall of the connecting hook, a protection plate is welded to the outer wall of the connecting hook, and a cutting knife is welded to the inner wall of the connecting hook. The movable frame is arranged to tightly fit the first magnetic block, when the device is used, the movable frame and the first magnetic block are arranged to facilitate quick replacement of the connecting hook, the usability of the device is improved, the connecting hook is arranged to connect the protective plate, and when the device is used, the protective plate is prevented from being damaged. And by arranging a connecting hook and a protection plate, installation protection is facilitated, and the usability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of button sewing machines, in particular to a thread cutting device for button sewing machines. Background Art

[0002] In recent years, the function of button sewing machines in the sewing machine industry is mainly to sew buttons on shirts and other clothing, and to fix the buttons on the clothes by means of cross and cross sewing to ensure the overall appearance. During the sewing process, the spindle motor drives the needle bar to move and is responsible for sewing the buttons. After completion, the presser foot is lifted, and the next station is switched to and the connected thread ends are cut by using the knife plate assembly. Therefore, a thread cutting device for the button sewing machine is needed.

[0003] The existing patent document with technical announcement number CN218756429U provides a thread cutting device for a button sewing machine, which belongs to the field of button sewing machines and includes a mounting base, a thread cutting groove, buttons, and sewing threads. The thread cutting groove is opened on the mounting base, and a thread cutting surface and a thread feeding groove are also opened in the thread cutting groove, and also includes a movable knife and a fixed knife. The thread cutting device of a button sewing machine of the utility model has the advantages of reasonable structure, simple device and greatly shortened thread length, and solves the problem that the movable knife of the existing knife plate assembly is at the bottom and the fixed knife is at the top, so the moving knife edge is set downward, and the fixed knife edge is set upward, when the movable knife is rotated, the movable knife meets the fixed knife to cut the thread end, and the length of the thread end is also determined by the distance between the two. However, in actual use, when the traditional knife plate assembly is cutting the thread, since the fixed knife is at the bottom, affected by its own thickness, the distance between the two edges is still large, so that the distance between the bottom of the button and the edge is too long, resulting in the problem of a long thread length. However, when the CN218756429U technology is operated, it is not convenient to quickly replace the device parts, it is not convenient to install and protect, and it is easy to cut hands. Therefore, a thread cutting device for a button sewing machine is urgently needed. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a thread trimming device for a button sewing machine to solve the problems that the existing thread trimming device for a button sewing machine is not convenient for quick replacement of device parts, is not convenient for installation and protection, and is easy to cut hands when in use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thread cutting device for a button sewing machine, comprising a mounting frame, the inner wall of the mounting frame is fixedly connected with a positioning rod, the outer wall of the positioning rod is fixedly connected with an electric push rod, one end of the electric push rod is fixedly connected with a moving frame, the inner wall of the moving frame is bonded with a first magnetic block, the inner wall of the moving frame is installed with a connecting hook, and the outer wall of the connecting hook is bonded with a second magnetic block.

[0006] A protective plate is welded to the outer wall of the connecting hook, and a cutting knife is welded to the inner wall of the connecting hook.

[0007] Preferably, the mounting frame is snap-connected with the positioning rod, and the inner wall of the mounting frame is of open-hole design.

[0008] Preferably, the positioning rod is threadedly connected to the electric push rod, and the outer wall of the positioning rod is threaded.

[0009] Preferably, the movable frame is movably connected to the mounting frame, and the inner wall of the movable frame is of slotted design.

[0010] Preferably, the inner wall of the movable frame is tightly fitted with the outer wall of the first magnetic block, and the first magnetic block is symmetrically arranged with respect to the central axis of the movable frame.

[0011] Preferably, the outer wall of the connecting hook is tightly fitted with the outer wall of the second magnetic block, and the second magnetic block is symmetrically arranged with respect to the central axis of the connecting hook.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model provides a movable frame to closely fit the first magnetic block. When the device is used, the movable frame and the first magnetic block are provided to facilitate quick replacement of the connecting hook, thereby increasing the usability of the device;

[0014] 2. The utility model connects the protective plate by arranging a connecting hook. When the device is used, the arrangement of the connecting hook and the protective plate facilitates installation and protection, thereby increasing the usability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a vertical top view of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0017] Figure 3 It is a structural schematic diagram of the combination of the movable frame and the first magnetic block component of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the combination of the connecting hook and the second magnetic block component of the utility model.

[0019] In the figure: 1. mounting frame; 2. positioning rod; 3. electric push rod; 4. moving frame; 5. first magnetic block; 6. connecting hook; 7. second magnetic block; 8. protective plate; 9. cutting knife. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0021] The following describes an embodiment of the utility model based on its overall structure.

[0022] See also Figure 1-4 A thread trimming device for a button sewing machine comprises a mounting frame 1, the inner wall of the mounting frame 1 is fixedly connected with a positioning rod 2, the mounting frame 1 is snap-connected with the positioning rod 2, and the inner wall of the mounting frame 1 is of an open hole design, the outer wall of the positioning rod 2 is fixedly connected with an electric push rod 3, the positioning rod 2 is threadedly connected with the electric push rod 3, and the outer wall of the positioning rod 2 is threadedly arranged, one end of the electric push rod 3 is fixedly connected with a moving frame 4, the moving frame 4 is movably connected with the mounting frame 1, and the inner wall of the moving frame 4 is of a slotted design, the inner wall of the moving frame 4 is bonded with a first magnetic block 5, and the moving frame 4 is movable. The inner wall of the frame 4 fits tightly with the outer wall of the first magnetic block 5, and the first magnetic block 5 is symmetrically arranged with the central axis of the movable frame 4. A connecting hook 6 is installed on the inner wall of the movable frame 4. The outer wall of the connecting hook 6 is bonded with the second magnetic block 7. The outer wall of the connecting hook 6 fits tightly with the outer wall of the second magnetic block 7, and the second magnetic block 7 is symmetrically arranged with the central axis of the connecting hook 6. By setting the movable frame 4, the first magnetic block 5 is tightly fitted. When using the device, the setting of the movable frame 4 and the first magnetic block 5 facilitates the quick replacement of the connecting hook 6, thereby increasing the usability of the device.

[0023] See also Figure 1-4 A thread cutting device for a button sewing machine, a protective plate 8 is welded to the outer wall of a connecting hook 6, and a cutting knife 9 is welded to the inner wall of the connecting hook 6. The connecting hook 6 is provided to connect the protective plate 8. When the device is used, the setting of the connecting hook 6 and the protective plate 8 facilitates installation and protection, thereby increasing the usability of the device.

[0024] Working principle: When in use, take out the mounting frame 1 and install it at the specified position of the button sewing machine, thread the electric push rod 3 to fix the movable frame 4, thread the positioning rod 2 to fix the electric push rod 3, and then bond the movable frame 4 to the first magnetic block 5, and then bond the movable frame 4 to the first magnetic block 5, and fix the movable frame 4 to the connecting hook 6 by magnetic adsorption, and finally open the electric push rod 3, drive the connecting hook 6 to move, hook the connecting hook 6 to the wire, and cut the wire with the cutting knife 9, thus completing the use of the device. The contents not described in detail in this manual belong to the prior art known to professional and technical personnel in this field.

[0025] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A thread trimming device for a button sewing machine, comprising a mounting frame (1), characterized in that: The inner wall of the mounting frame (1) is fixedly connected to a positioning rod (2), the outer wall of the positioning rod (2) is fixedly connected to an electric push rod (3), one end of the electric push rod (3) is fixedly connected to a moving frame (4), the inner wall of the moving frame (4) is bonded with a first magnetic block (5), the inner wall of the moving frame (4) is installed with a connecting hook (6), and the outer wall of the connecting hook (6) is bonded with a second magnetic block (7); A protective plate (8) is welded to the outer wall of the connecting hook (6), and a cutting knife (9) is welded to the inner wall of the connecting hook (6).

2. A thread trimming device for a button sewing machine according to claim 1, characterized in that: The mounting frame (1) is snap-connected with the positioning rod (2), and the inner wall of the mounting frame (1) is of open-hole design.

3. A thread trimming device for a button sewing machine according to claim 1, characterized in that: The positioning rod (2) is threadedly connected to the electric push rod (3), and the outer wall of the positioning rod (2) is arranged in a threaded shape.

4. A thread trimming device for a button sewing machine according to claim 1, characterized in that: The movable frame (4) is movably connected to the mounting frame (1), and the inner wall of the movable frame (4) is of slotted design.

5. The thread trimming device for a button sewing machine according to claim 1, characterized in that: The inner wall of the movable frame (4) is tightly fitted with the outer wall of the first magnetic block (5), and the first magnetic block (5) is symmetrically arranged with respect to the central axis of the movable frame (4).

6. A thread trimming device for a button sewing machine according to claim 1, characterized in that: The outer wall of the connecting hook (6) is tightly fitted with the outer wall of the second magnetic block (7), and the second magnetic block (7) is symmetrically arranged with respect to the central axis of the connecting hook (6).

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