Shuttle device of bobbin-free bottom line

Abstract

The utility model discloses a shuttle hook device for bobbin-free bottom threads, which belongs to the technical field of sewing machines and comprises a shuttle race, one end of the shuttle race is rotatably connected with a lower shaft, one end of the lower shaft extends to an inner cavity of the shuttle race, a shuttle support and a shuttle hook are sequentially mounted in the inner cavity of the shuttle race from inside to outside, and the shuttle support is connected with the shuttle race. One end of the shuttle support is fixedly connected with the extending end of the lower shaft, the periphery of the shuttle support is movably connected with the side wall of an inner cavity of the shuttle race, the periphery of the shuttle hook is connected with the side wall of the inner cavity of the shuttle race in a sliding mode, and a shuttle peg sleeve is installed in the shuttle hook. The bottom thread can be directly threaded and used from the outside, a shuttle peg thread supply mode is replaced, a series of operations such as traditional shuttle peg dismounting and bottom thread supplementing do not need to be carried out after a long time, the whole operation is convenient and rapid, time and labor are saved, and the production efficiency of equipment is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machines, and more particularly to a shuttle device without a bobbin thread. Background Art

[0002] There are many brands of sewing machines on the market today, including electric, foot-operated, and manual, and there are many types of stitches. For lock stitches, the bottom thread must be wound on the bobbin, and then the bobbin is installed in the bobbin case. Moreover, due to the small size of the bobbin, the length of the wound bottom thread is limited. After using it for a period of time, the bobbin needs to be disassembled, and then the bottom thread must be wound and replenished. The whole operation is relatively cumbersome, inconvenient to use in the production process, time-consuming and labor-intensive, which in turn affects the production efficiency of the equipment. Therefore, in view of this, research and improvement are conducted on the existing structure, and a shuttle device with a bobbin-free bottom thread is provided, in order to achieve a purpose with more practical value. Utility Model Content

[0003] 1. Technical problems to be solved

[0004] In response to the problems existing in the prior art, the purpose of the utility model is to provide a shuttle device without a bobbin bottom thread, which can add an elastic pressure plate on the positioning ring or open a through hole at the bottom of the bobbin case, so that the bottom thread can be directly threaded from the outside, replacing the bobbin thread supply method, so that after a long time, there is no need to perform a series of operations such as traditional bobbin disassembly and bottom thread replenishment. The whole operation is convenient and fast, saving time and effort, and greatly improving the production efficiency of the equipment.

[0005] 2. Technical solution

[0006] In order to solve the above problems, the present invention adopts the following technical solutions.

[0007] A shuttle device without a bobbin bottom line comprises a shuttle bed, one end of the shuttle bed is rotatably connected to a lower shaft, one end of the lower shaft extends to the inner cavity of the shuttle bed, a shuttle holder and a shuttle are installed in sequence from the inside to the outside of the shuttle bed inner cavity, one end of the shuttle holder is fixedly connected to the extended end of the lower shaft, and the outer periphery is movably connected to the side wall of the shuttle bed inner cavity, the outer periphery of the shuttle shuttle is slidably connected to the side wall of the shuttle bed inner cavity, a bobbin case is installed inside the shuttle, one side of the bobbin case is fixedly connected to a threading post, the other end of the shuttle bed is fixedly connected to a positioning ring through two wing-shaped locks, and the inner side of the positioning ring is clamped with the top of the threading post, one side of the positioning ring is fixedly connected to an elastic pressing sheet, and a through hole is opened at the bottom of the bobbin case.

[0008] Furthermore, a mounting post is fixedly connected to the center position of the shuttle, and the bobbin sleeve is sleeved on the outer periphery of one end of the mounting post.

[0009] Furthermore, a threading hole 1 is provided on the top side of the threading post.

[0010] Furthermore, one end of the elastic pressing piece is fixed to the positioning ring by a screw, and the other end is provided with a second threading hole.

[0011] Furthermore, a threading hole three is provided at the bottom of the positioning ring at a position corresponding to the through hole.

[0012] Furthermore, a bayonet is provided on the outer periphery of the positioning ring at a position corresponding to the wing-shaped lock, and the corresponding wing-shaped lock is engaged in the bayonet.

[0013] 3. Beneficial effects

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] (1) This solution adds an elastic pressure plate to the positioning ring so that the bottom thread can be passed through the second threading hole on the elastic pressure plate and passed through the first threading hole on the threading column. The bottom thread is directly threaded from the outside, replacing the bobbin thread supply method. After a long time, there is no need to perform a series of operations such as disassembling the traditional bobbin and replenishing the bottom thread. The entire operation is convenient and fast, saving time and effort, and greatly improving the production efficiency of the equipment.

[0016] (2) This solution provides a through hole at the bottom of the bobbin case, so that the bottom thread can be passed through the threading hole three at the bottom of the positioning ring and the through hole on the bobbin case in turn, and passed out from the threading hole one on the threading post. The bottom thread is directly threaded from the outside, replacing the traditional bobbin thread supply method. Furthermore, after a long time, there is no need to perform a series of operations such as disassembling the traditional bobbin and replenishing the bottom thread. The entire operation is convenient and fast, saving time and effort, and greatly improving the production efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 For the utility model Figure 1 Schematic diagram of the structure viewed from above;

[0019] Figure 3 This is a schematic diagram of the split structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the bobbin case position structure of the present utility model.

[0021] Description of the numbers in the figure:

[0022] 1. Shuttle bed;

[0023] 2. Lower shaft;

[0024] 3. Sotho;

[0025] 4. Shuttle shuttle;

[0026] 5. Bobbin case;

[0027] 6. Threading column;

[0028] 7. Wing lock;

[0029] 8. Positioning ring;

[0030] 9. Elastic tableting;

[0031] 10. Through hole;

[0032] 11. Install the column;

[0033] 12. Threading hole 1;

[0034] 13. Threading hole 2;

[0035] 14. Threading hole three;

[0036] 15. Bayonet. DETAILED DESCRIPTION

[0037] The technical solutions 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; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] Example 1:

[0039] See also Figure 1-3 , a shuttle device without a bobbin bottom line comprises a shuttle bed 1, one end of the shuttle bed 1 is rotatably connected to the lower shaft 2, one end of the lower shaft 2 extends to the inner cavity of the shuttle bed 1, and the inner cavity of the shuttle bed 1 is sequentially installed with a shuttle holder 3 and a shuttle 4, one end of the shuttle holder 3 is fixedly connected to the extended end of the lower shaft 2, and the outer periphery is movably connected to the side wall of the inner cavity of the shuttle bed 1, the outer periphery of the shuttle 4 is slidably connected to the side wall of the inner cavity of the shuttle bed 1, a shuttle core case 5 is installed inside the shuttle 4, one side of the shuttle core case 5 is fixedly connected to the threading post 6, the other end of the shuttle bed 1 is fixedly connected to a positioning ring 8 through two wing-shaped lock buckles 7, and the inner side of the positioning ring 8 is clamped with the top of the threading post 6, and one side of the positioning ring 8 is fixedly connected to an elastic pressing piece 9.

[0040] See Figure 3 The center position of the shuttle 4 is fixedly connected with a mounting column 11, and the bobbin case 5 is sleeved on the outer periphery of one end of the mounting column 11.

[0041] See Figure 4A threading hole 12 is provided on the top side of the threading column 6.

[0042] See Figure 3 One end of the elastic pressing piece 9 is fixed to the positioning ring 8 by a screw, and the other end is provided with a threading hole 13.

[0043] See Figure 3 A bayonet 15 is provided on the outer periphery of the positioning ring 8 at a position corresponding to the wing-shaped lock buckle 7 , and the corresponding wing-shaped lock buckle 7 is snapped into the bayonet 15 .

[0044] Working principle: one end of the bottom thread is passed through the threading hole 2 13 on the elastic pressing plate 9, and then passed through the threading hole 1 12 on the threading column 6, and one end of it is connected to the machine head. The whole operation enables the bottom thread to be threaded directly from the outside, replacing the bobbin thread supply method. After a long time, there is no need to perform a series of operations such as traditional bobbin disassembly and bottom thread replenishment. The whole operation is convenient and fast, saving time and effort, and greatly improving the production efficiency of the equipment.

[0045] Example 2:

[0046] See also Figure 1-4 A shuttle device without a bobbin bottom line comprises a shuttle bed 1, one end of the shuttle bed 1 is rotatably connected to a lower shaft 2, one end of the lower shaft 2 extends to the inner cavity of the shuttle bed 1, and a shuttle holder 3 and a shuttle 4 are installed in the inner cavity of the shuttle bed 1 from the inside to the outside. One end of the shuttle holder 3 is fixedly connected to the extended end of the lower shaft 2, and the outer periphery is movably connected to the side wall of the inner cavity of the shuttle bed 1, the outer periphery of the shuttle 4 is slidably connected to the side wall of the inner cavity of the shuttle bed 1, a bobbin case 5 is installed inside the shuttle 4, one side of the bobbin case 5 is fixedly connected to a threading post 6, and the other end of the shuttle bed 1 is fixedly connected to a positioning ring 8 through two wing-shaped lock buckles 7, and the inner side of the positioning ring 8 is clamped with the top of the threading post 6, and a through hole 10 is opened at the bottom of the bobbin case 5.

[0047] See Figure 3 The center position of the shuttle 4 is fixedly connected with a mounting column 11, and the bobbin case 5 is sleeved on the outer periphery of one end of the mounting column 11.

[0048] See Figure 4 A threading hole 12 is provided on the top side of the threading column 6.

[0049] See Figure 2 A threading hole 14 is provided at the bottom of the positioning ring 8 at a position corresponding to the through hole 10 .

[0050] See Figure 3 A bayonet 15 is provided on the outer periphery of the positioning ring 8 at a position corresponding to the wing-shaped lock buckle 7 , and the corresponding wing-shaped lock buckle 7 is snapped into the bayonet 15 .

[0051] Working principle: one end of the bobbin thread is first passed through the threading hole 3 14 at the bottom of the positioning ring 8 and the through hole 10 at the bottom of the bobbin case 5 in sequence, and then passed through the threading hole 12 on the threading column 6. The whole operation allows the bobbin thread to be threaded directly from the outside, replacing the traditional bobbin thread supply method. Furthermore, after a long time, there is no need to perform a series of operations such as traditional bobbin disassembly and bottom line replenishment. The whole operation is convenient and fast, saving time and effort, and greatly improving the production efficiency of the equipment.

[0052] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They 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 orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0053] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0054] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A shuttle device without a bobbin thread, comprising a shuttle bed (1), one end of the shuttle bed (1) being rotatably connected to a lower shaft (2), one end of the lower shaft (2) extending into an inner cavity of the shuttle bed (1), characterized in that: The shuttle bed (1) inner cavity is sequentially provided with a shuttle support (3) and a shuttle (4), one end of the shuttle support (3) is fixedly connected to the extended end of the lower shaft (2), and the outer periphery is movably connected to the side wall of the shuttle bed (1) inner cavity, the outer periphery of the shuttle (4) is slidably connected to the side wall of the shuttle bed (1), a bobbin case (5) is installed inside the shuttle (4), one side of the bobbin case (5) is fixedly connected to the threading post (6), the other end of the shuttle bed (1) is fixedly connected to a positioning ring (8) through two wing-shaped lock buckles (7), and the inner side of the positioning ring (8) is clamped with the top of the threading post (6), one side of the positioning ring (8) is fixedly connected to an elastic pressing sheet (9), and a through hole (10) is provided at the bottom of the bobbin case (5).

2. A shuttle device without bobbin thread according to claim 1, characterized in that: A mounting post (11) is fixedly connected to the center position of the shuttle (4), and the bobbin case (5) is sleeved on the outer periphery of one end of the mounting post (11).

3. A shuttle hook device without bobbin thread according to claim 1, characterized in that: A threading hole (12) is provided on the top side of the threading column (6).

4. A shuttle device without bobbin thread according to claim 1, characterized in that: One end of the elastic pressing piece (9) is fixed to the positioning ring (8) by a screw, and the other end is provided with a second threading hole (13).

5. The shuttle device without bobbin thread according to claim 1, characterized in that: A threading hole three (14) is provided at the bottom of the positioning ring (8) at a position corresponding to the through hole (10).

6. A shuttle device without bobbin thread according to claim 1, characterized in that: A bayonet (15) is provided on the outer periphery of the positioning ring (8) at a position corresponding to the wing-shaped lock buckle (7), and the corresponding wing-shaped lock buckle (7) is clamped in the bayonet (15).

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