A needle guard adjustable shuttle holder

Abstract

The utility model discloses a needle guard piece adjustable shuttle holder, including the shuttle holder main part, the lateral surface of shuttle holder main part is equipped with the needle slot of through -and -through, and the edge of needle slot swingly set up with the adjustable height's needle guard piece, is equipped with the adjusting hole and locking hole on the needle guard piece, and is equipped with the lower thread hole of cooperation with locking hole and the upper thread hole of cooperation with adjusting hole on the shuttle holder main part, and the locking screw for locking needle guard piece is set up in the inside of shuttle holder main part, and locking screw passes through lower thread hole and locking hole in proper order, the outside of needle guard piece is provided with the adjusting bolt for adjusting needle guard piece tightness, and adjusting bolt passes through adjusting hole and corresponding upper thread hole in proper order, designed the needle guard piece of longitudinal height adjustment, and the adjusting hole cooperation adjusting bolt is designed on the needle guard piece, makes needle guard piece can carry out the fine adjustment of height, cooperation locking screw and locking hole, guarantees after adjusting, can keep the locking and positioning of whole needle guard piece, is applicable to different size's machine needle.

Description

Technical Field

[0001] This utility model belongs to the technical field of sewing machine parts, specifically relating to a shuttle frame with an adjustable needle guard. Background Technology

[0002] A sewing machine is a machine that uses one or more sewing threads to create one or more stitches on fabric, allowing one or more layers of fabric to interweave or sew together. The rotary hook is an essential component in woven sewing; its function is to hook the top thread on the needle and interweave it with the thread inside the bobbin, thus forming a stitch. The rotary hook includes a shuttle bed, inside which is a rotating shuttle frame; the shuttle frame holds the bobbin for winding and storing the sewing thread; the side of the shuttle frame also has needle grooves, and the edges of the needle grooves are fitted with needle guards.

[0003] The existing needle guards on the edge of the needle groove are fixed structures, and the position of the needle guards cannot be finely adjusted, which makes it impossible to use needles of different sizes. To address this, this utility model designs a shuttle frame with adjustable needle guards. Utility Model Content

[0004] The purpose of this invention is to provide a shuttle frame with an adjustable needle guard to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a shuttle frame with an adjustable needle guard, comprising a shuttle frame body, a shuttle frame shaft core disposed at the inner center of the shuttle frame body, a through-type needle groove opened on the side surface of the shuttle frame body, a height-adjustable needle guard movably disposed at the edge of the needle groove, an adjustment hole and a locking hole opened on the needle guard, a lower threaded hole that mates with the locking hole and an upper threaded hole that mates with the adjustment hole opened on the shuttle frame body, a locking screw for locking the needle guard is disposed on the inner side of the shuttle frame body, and the locking screw passes through the lower threaded hole and the locking hole in sequence, and an adjusting bolt for adjusting the tightness of the needle guard is disposed on the outer side of the needle guard, and the adjusting bolt passes through the adjusting hole and the corresponding upper threaded hole in sequence.

[0006] Preferably, the shape of the adjusting hole is elliptical, and the shape of the locking hole is also elliptical.

[0007] Preferably, the shuttle frame body and the shuttle frame shaft are integrally formed as a single structure.

[0008] Preferably, the surface of the shuttle frame body is provided with a groove for the needle guard to be movably inserted, and the shape of the groove matches the shape of the needle guard.

[0009] Preferably, the outer opening of the adjustment hole is provided with a beveled edge that can conceal the outer end of the adjustment bolt.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This invention designs a needle protector with adjustable height in the longitudinal direction. By designing adjustment holes on the needle protector and using adjustment bolts, the height of the needle protector can be finely adjusted. With the help of locking screws and locking holes, the entire needle protector can be locked and positioned after adjustment. It is suitable for needles of different sizes. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is a front view structural diagram of the present utility model;

[0014] Figure 3 This is a schematic diagram of the structure for installing the protective needle plate of this utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the protective needle plate in the separated state of this utility model;

[0016] In the diagram: 1. Shuttle frame body; 2. Shuttle frame shaft; 3. Needle groove; 4. Upper threaded hole; 5. Lower threaded hole; 6. Needle guard plate; 7. Adjusting bolt; 8. Locking screw; 9. Adjusting hole; 10. Locking hole. Detailed Implementation

[0017] 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.

[0018] Example 1

[0019] Please see Figures 1 to 4This utility model provides a technical solution: a shuttle frame with an adjustable needle guard, comprising a shuttle frame body 1, a shuttle frame shaft core 2 disposed at the inner center of the shuttle frame body 1, a through-type needle groove 3 formed on the side surface of the shuttle frame body 1, a height-adjustable needle guard 6 movably disposed at the edge of the needle groove 3, an adjustment hole 9 and a locking hole 10 formed on the needle guard 6, a lower threaded hole 5 that mates with the locking hole 10 and an upper threaded hole 4 that mates with the adjustment hole 9 on the shuttle frame body 1, and a locking mechanism is provided on the inner side of the shuttle frame body 1. The needle guard 6 has a locking screw 8, which passes through the lower threaded hole 5 and the locking hole 10 in sequence. An adjusting bolt 7 for adjusting the tightness of the needle guard 6 is provided on the outer side of the needle guard 6, passing through the adjusting hole 9 and the corresponding upper threaded hole 4 in sequence. By designing the adjusting hole 9 on the needle guard 6 in conjunction with the adjusting bolt 7, the height of the needle guard 6 can be finely adjusted. Combined with the locking screw 8 and the locking hole 10, this ensures that the entire needle guard 6 is locked and positioned after adjustment, suitable for needles of different sizes. In this embodiment, preferably, the adjusting hole 9 and the locking hole 10 are elliptical in shape, reserving space for height adjustment of the needle guard 6. In this embodiment, preferably, the shuttle frame body 1 and the shuttle frame shaft core 2 are integrally formed. In this embodiment, preferably, the surface of the shuttle frame body 1 is provided with a groove for the needle guard 6 to be movably inserted, and the shape of the groove matches the shape of the needle guard 6 to prevent the needle guard 6 from protruding. In this embodiment, preferably, the outer opening of the adjusting hole 9 is provided with a beveled chamfer that can hide the outer end of the adjusting bolt 7, so as to prevent the end of the adjusting bolt 7 from protruding.

[0020] Although embodiments of the present invention have been shown and described in detail above, 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 shuttle frame with adjustable needle guard, comprising a shuttle frame body (1), wherein a shuttle frame shaft core (2) is disposed at the inner center position of the shuttle frame body (1), characterized in that: The side surface of the shuttle frame body (1) is provided with a through-type needle groove (3). The edge of the needle groove (3) is provided with an adjustable height needle guard plate (6). The needle guard plate (6) is provided with an adjustment hole (9) and a locking hole (10). The shuttle frame body (1) is provided with a lower threaded hole (5) that mates with the locking hole (10) and an upper threaded hole (4) that mates with the adjustment hole (9). The inner side of the shuttle frame body (1) is provided with a locking screw (8) for locking the needle guard plate (6), and the locking screw (8) passes through the lower threaded hole (5) and the locking hole (10) in sequence. The outer side of the needle guard plate (6) is provided with an adjusting bolt (7) for adjusting the tightness of the needle guard plate (6), and the adjusting bolt (7) passes through the adjusting hole (9) and the corresponding upper threaded hole (4) in sequence.

2. The shuttle frame with adjustable needle guard according to claim 1, characterized in that: The adjustment hole (9) is elliptical in shape, and the locking hole (10) is also elliptical in shape.

3. The shuttle frame with adjustable needle guard according to claim 1, characterized in that: The main body (1) of the shuttle frame and the shuttle frame shaft (2) are integrally formed into a single structure.

4. The shuttle frame with adjustable needle guard according to claim 1, characterized in that: The surface of the shuttle frame body (1) is provided with a groove for the needle guard (6) to be movably inserted, and the shape of the groove matches the shape of the needle guard (6).

5. The shuttle frame with adjustable needle guard according to claim 1, characterized in that: The outer opening of the adjustment hole (9) is provided with a beveled chamfer that can hide the outer end of the adjustment bolt (7).

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