A thread cutting device

Abstract

The utility model discloses a thread cutting device, including a first shell and a second shell, the ends of the first shell and the second shell are both provided with corresponding blades, the tails of the first shell and the second shell are provided with a hinge shaft, a spring is installed on the hinge shaft, and one end of the spring is against the inner wall of the first shell, and the other end of the spring is against the inner wall of the second shell, a mounting column is provided on the inner side surface of the second shell, a limiting hole is provided on the first shell, the mounting column is located in the limiting hole, and a screw is installed in the mounting column, a wire breaking piece is provided on the hinge shaft, and the wire breaking piece is located on the outer side of the second shell. A user controls the angle between the first shell and the second shell to make blade a and blade b open and close to cut the thread, when the suture is not single, the user rotates the wire breaking piece out, cuts the thin thread through the wire breaking port a, cuts the thick thread through the wire breaking port b, and then cuts the thread by opening and closing blade a and blade b, so as to avoid the reduction of wire cutting speed and ensure efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of wire shears, in particular to a wire shearing device. Background Art

[0002] When traditional thread cutters are used to repair three-needle four-thread machines or four-needle five-thread machines, since the stitches are no longer single and the heads of traditional thread cutters are too thick, it is difficult to complete the thread cutting in one go by only relying on the front part to penetrate the stitching part, resulting in a reduced cutting speed and low efficiency. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a thread cutting device.

[0004] The purpose of the utility model is achieved through the following technical solutions: a wire cutting device, comprising a first shell and a second shell, the ends of the first shell and the second shell are both provided with corresponding blades, the tails of the first shell and the second shell are provided with hinge shafts, a spring is installed on the hinge shaft, and one end of the spring is against the inner wall of the first shell, and the other end of the spring is against the inner wall of the second shell, a mounting column is provided on the inner side surface of the second shell, a limiting hole is opened on the first shell, the mounting column is located in the limiting hole, and a screw is installed in the mounting column, a wire breaking piece is provided on the hinge shaft, and the wire breaking piece is located on the outer side of the second shell.

[0005] Preferably, an extension piece is provided at the end of the disconnecting piece, a disconnecting opening a is opened at the end of the extension piece, and a disconnecting opening b is opened at the end of the disconnecting piece, and the disconnecting opening b is located at one side of the extension piece.

[0006] Preferably, the wire break opening a is V-shaped.

[0007] Preferably, a blade a is mounted on the end of the second housing via a locking screw a, and a blade b corresponding to the blade a is mounted on the end of the first housing via a locking screw b.

[0008] Preferably, a limit plate is provided on the lower surface of the end of the first shell, and the limit plate is located below the blade a.

[0009] Preferably, the limiting hole is a vertically elongated hole, and the length of the limiting hole is greater than the diameter of the mounting column.

[0010] Preferably, a bracelet is provided on the upper surface of the second shell.

[0011] Preferably, a reinforcement sheet is provided inside the second shell.

[0012] The utility model has the following advantages: the utility model controls the angle between the first shell and the second shell by a user, so that the blade a and the blade b are opened and closed, so as to cut the thread; when the suture is not single, the user rotates the thread breaking piece out, so as to hook and cut the thin thread through the thread breaking opening a, and hook and cut the thick thread through the thread breaking opening b, and then the blade a and the blade b are opened and closed to cut the thread, thereby avoiding the reduction of the thread cutting speed and ensuring the efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the thread cutting device;

[0014] Figure 2 is a structural schematic diagram of the second shell;

[0015] Figure 3 It is a schematic diagram of the structure of the wire breaking piece on the second shell;

[0016] Figure 4 is a schematic structural diagram of the first shell;

[0017] In the figure, 1-first shell, 2-second shell, 3-bracelet, 5-blade b, 6-limiting hole, 7-mounting column, 8-screw, 9-hinge shaft, 10-limiting plate, 11-spring, 12-reinforcement plate, 13-locking screw a, 15-blade a, 16-locking screw b, 18-breaking piece, 19-breaking port b, 21-extension piece, 22-breaking port a. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0020] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0022] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it 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 invention can be understood according to specific circumstances.

[0024] In this embodiment, if Figure 1 As shown, a wire cutting device comprises a first shell 1 and a second shell 2, the ends of the first shell 1 and the second shell 2 are both provided with corresponding blades, the tails of the first shell 1 and the second shell 2 are provided with a hinge shaft 9, a spring 11 is installed on the hinge shaft 9, and one end of the spring 11 is against the inner wall of the first shell 1, and the other end of the spring 11 is against the inner wall of the second shell 2, a mounting column 7 is provided on the inner side surface of the second shell 2, a limiting hole 6 is provided on the first shell 1, the mounting column 7 is located in the limiting hole 6, and a screw 8 is installed in the mounting column 7, a wire breaking piece 18 is provided on the hinge shaft 9, and the wire breaking piece 18 is located on the outer side of the second shell 2. Further, as Figure 3As shown, the end of the wire-breaking piece 18 is provided with an extension piece 21, and the end of the extension piece 21 is provided with a wire-breaking opening a22, and preferably, the wire-breaking opening a22 is V-shaped. The end of the wire-breaking piece 18 is provided with a wire-breaking opening b19, and the wire-breaking opening b19 is located on one side of the extension piece 21. The user controls the angle between the first shell 1 and the second shell 2 so that the blade a15 and the blade b5 are opened and closed to cut the thread. When the suture is not single, the user rotates the wire-breaking piece 18 out, so that the thin thread is hooked and cut through the wire-breaking opening a22, and the thick thread is hooked and cut through the wire-breaking opening b19, and then the blade a15 and the blade b5 are opened and closed to cut the thread, thereby avoiding the reduction of the wire-cutting speed and ensuring efficiency. In this embodiment, the wire-breaking piece 18 is installed on the outside of the second shell 2 using the existing Swiss Army knife installation method. The installation method is not improved here, so it will not be repeated.

[0025] In this embodiment, if Figure 2 and Figure 4 As shown, the end of the second housing 2 is installed with a blade a15 through a locking screw a13, and the end of the first housing 1 is installed with a blade b5 corresponding to the blade a15 through a locking screw b16. Preferably, a wristband 3 is provided on the upper surface of the second housing 2. Further, a limit plate 10 is provided on the lower surface of the end of the first housing 1, and the limit plate 10 is located below the blade a15. Further, the limit hole 6 is a vertical long hole, and the length of the limit hole 6 is greater than the diameter of the mounting column 7. Specifically, when it is necessary to cut the line, the user passes the thumb through the wristband 3, places the line between the blade a15 and the blade b5, and then presses down to close the blade a15 and the blade b5 to cut the line. During the closing process, the mounting column 7 moves from top to bottom in the limit hole 6, and the spring 11 is compressed by force. When the cutting is completed, the user stops exerting force, and the spring 11 is driven by its own elasticity, and the second housing 2 is reset. At this time, the mounting column 7 moves from bottom to top in the limit hole 6. In this embodiment, the nut of the screw 8 is located outside the limiting hole 6 .

[0026] In this embodiment, a reinforcing sheet 12 is disposed inside the second housing 2 .

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can 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 should be included in the protection scope of the present invention.

Claims

1. A thread trimming device, characterized in that: The invention comprises a first shell (1) and a second shell (2), wherein the ends of the first shell (1) and the second shell (2) are both provided with corresponding blades, the tails of the first shell (1) and the second shell (2) are provided with hinge shafts (9), a spring (11) is installed on the hinge shaft (9), and one end of the spring (11) abuts against the inner wall of the first shell (1), and the other end of the spring (11) abuts against the inner wall of the second shell (2), a mounting column (7) is provided on the inner side surface of the second shell (2), a limiting hole (6) is provided on the first shell (1), the mounting column (7) is located in the limiting hole (6), and a screw (8) is installed in the mounting column (7), and a wire breaking piece (18) is provided on the hinge shaft (9), and the wire breaking piece (18) is located on the outer side of the second shell (2).

2. The thread trimming device according to claim 1, characterized in that: An extension piece (21) is provided at the end of the disconnecting piece (18), a disconnecting opening a (22) is provided at the end of the extension piece (21), and a disconnecting opening b (19) is provided at the end of the disconnecting piece (18), and the disconnecting opening b (19) is located at one side of the extension piece (21).

3. The thread trimming device according to claim 2, characterized in that: The wire breaking opening a (22) is V-shaped.

4. The thread trimming device according to claim 3, characterized in that: A blade a (15) is mounted on the end of the second housing (2) via a locking screw a (13), and a blade b (5) corresponding to the blade a (15) is mounted on the end of the first housing (1) via a locking screw b (16).

5. The thread trimming device according to claim 4, characterized in that: A limit plate (10) is provided on the lower surface of the end of the first shell (1), and the limit plate (10) is located below the blade a (15).

6. The thread trimming device according to claim 5, characterized in that: The limiting hole (6) is a vertically long hole, and the length of the limiting hole (6) is greater than the diameter of the mounting column (7).

7. The thread trimming device according to claim 6, characterized in that: A bracelet (3) is provided on the upper surface of the second shell (2).

8. The thread trimming device according to claim 7, characterized in that: A reinforcing sheet (12) is provided inside the second shell (2).

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