Special thread jamming prevention rotating shuttle mechanism for quilt sewing machine

Abstract

The utility model discloses a special thread jamming prevention rotating shuttle mechanism for a quilt sewing machine, which comprises a mounting seat, a shuttle case, a shuttle frame, a positioning groove and a connecting shaft, the mounting seat is provided with the shuttle case, the shuttle case is fixedly connected with the mounting seat, the shuttle frame is arranged inside the shuttle case, the surface of the shuttle frame is provided with an annular bulge, and the positioning groove is fixedly connected with the mounting seat. The annular protrusion is embedded in the inner side wall of the shuttle shell and movably connected with the shuttle shell, and a positioning groove is formed in the shuttle frame. According to the rotating shuttle mechanism capable of preventing thread jamming, through the arrangement of the shuttle shell, the shuttle frame and the positioning groove, under the action of the positioning groove formed in the shuttle frame, a bottom thread is hooked and limited, in the quilt sewing process, through a large number of practical operations, the effect stability is enhanced, wear resistance is achieved, the rotating shuttle mechanism is very easy to use, and the phenomena that the bottom thread is jammed and broken and the bottom thread lumps are avoided; and therefore, the double-thread sewing machine has the characteristic that the efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic quilt sewing, in particular to a special anti-thread-jamming rotary hook mechanism for a quilt sewing machine. Background Art

[0002] In daily life, a quilt is usually placed inside a quilt cover for use. However, since the two are often misaligned, the use effect of the quilt is reduced. Therefore, the two are fixed to avoid the offset phenomenon.

[0003] The existing method is to fix it by manual sewing, which is inefficient and time-consuming and laborious. As a result, automatic sewing quilts have emerged. This device realizes the automatic sewing process through mechanical principles and the cooperation of the sewing machine head, which greatly improves the efficiency. However, after long-term use, it is found that the stability of the rotary shuttle is low, and the bottom line is prone to jamming and breaking. After this phenomenon occurs, the bottom line forms a lump on the quilt, resulting in the sewing effect not meeting the ideal requirements, not being strong and durable, and affecting the practicality of the device. In view of the above problems, it is more important to design a rotary shuttle mechanism for quilt sewing machines to prevent jamming. Utility Model Content

[0004] The utility model aims to provide a special anti-thread-jamming hook mechanism for a quilt sewing machine to solve the above-mentioned problem.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rotary shuttle mechanism for preventing thread jamming specially used in a quilt sewing machine, comprising a mounting seat, a bobbin case, a shuttle rack, a positioning groove and a connecting shaft, wherein the mounting seat is provided with a bobbin case, the bobbin case is fixedly connected to the mounting seat, the interior of the bobbin case is provided with a shuttle rack, the surface of the shuttle rack is provided with an annular protrusion, the annular protrusion is embedded in the inner side wall of the bobbin case, and forms a movable connection with the bobbin case.

[0006] Preferably, a positioning groove is provided on the shuttle rack.

[0007] Preferably, a connecting shaft is provided at the center of the shuttle rack.

[0008] Preferably, the mounting seat, shuttle housing, shuttle rack, positioning groove and connecting shaft are all made of stainless steel.

[0009] Preferably, the bobbin case and the bobbin rack are both circular in shape.

[0010] The beneficial effects of the utility model are:

[0011] The anti-thread jamming rotary hook mechanism is provided with a shuttle case, a shuttle frame and a positioning groove, and through the positioning groove opened on the shuttle frame, the bottom line is hooked over and the position of the bottom line is limited. In the process of sewing quilts, after a large number of practical operations, the effect stability is enhanced, the wear resistance is very good, and there is no phenomenon of the bottom line jamming and breaking, the bottom line lumping, or the upper thread being loose and the bottom line being tight, and the efficiency is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a structural effect diagram of the utility model;

[0014] Figure 3 It is a structural plan view of the utility model.

[0015] In the figure: 1-mounting seat, 2-bobbin case, 3-bobbin frame, 4-positioning groove, 5-connecting shaft, 6-annular protrusion. DETAILED DESCRIPTION

[0016] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0017] See also Figure 1 -3, the utility model provides a technical solution: a special anti-thread jamming rotary shuttle mechanism for a quilt sewing machine, comprising a mounting seat 1, a bobbin case 2, a shuttle rack 3, a positioning groove 4 and a connecting shaft 5, the mounting seat 1 is provided with a bobbin case 2, the bobbin case 2 is fixedly connected to the mounting seat 1, the interior of the bobbin case 2 is provided with a shuttle rack 3, the surface of the shuttle rack 3 is provided with an annular protrusion 6, the annular protrusion 6 is embedded in the inner wall of the bobbin case 2, and forms a movable connection with the bobbin case 2.

[0018] As a preferred solution, the shuttle rack 3 is in a rotating movable state on the bobbin case 2 .

[0019] Specifically, a positioning groove 4 is provided on the shuttle rack 3 .

[0020] As a preferred solution, by means of the positioning groove 4 provided on the shuttle frame 3, the bottom thread is hooked over and the position of the bottom thread is limited. During the process of sewing the quilt, the stability of the effect is enhanced, and there is no phenomenon of the bottom thread being stuck or broken, the bottom thread being clumped, or the upper thread being loose and the bottom thread being tight.

[0021] Specifically, a connecting shaft 5 is provided at the center of the shuttle rack 3 .

[0022] Specifically, the mounting seat 1, the shuttle housing 2, the shuttle frame 3, the positioning groove 4 and the connecting shaft 5 are all made of stainless steel.

[0023] As a preferred solution, stainless steel is used as the material to increase its wear resistance.

[0024] Specifically, the bobbin case 2 and the bobbin frame 3 are both circular in shape.

[0025] As a preferred solution, when the cables are installed on the base frame 1, buffering performance can be provided to avoid damage to the cables, thereby improving the stability and practicality of the fixing frame.

[0026] During the specific implementation of the utility model: the mounting base 1 is installed on the sewing machine head of the equipment, and the bottom line is passed through and placed in the positioning groove 4 on the shuttle frame 3. During the use of the mechanism, after a large number of practical operations, the effect stability is enhanced, the wear resistance is very good, and there is no phenomenon of the bottom line being stuck or broken, the bottom line being clumped, or the upper thread being loose and the bottom thread being tight, and the efficiency is increased.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A special anti-thread-jamming rotary hook mechanism for a quilt sewing machine, comprising a mounting seat (1), a bobbin case (2), a shuttle frame (3), a positioning groove (4) and a connecting shaft (5), characterized in that: A bobbin case (2) is arranged on the mounting seat (1), the bobbin case (2) is fixedly connected to the mounting seat (1), a shuttle frame (3) is arranged inside the bobbin case (2), a surface of the shuttle frame (3) is provided with an annular protrusion (6), and the annular protrusion (6) is embedded in the inner side wall of the bobbin case (2) to form a movable connection with the bobbin case (2).

2. The special anti-thread-jamming hook mechanism for a quilt sewing machine according to claim 1, characterized in that: The shuttle frame (3) is provided with a positioning groove (4).

3. The special anti-thread-jamming hook mechanism for a quilt sewing machine according to claim 2, characterized in that: A connecting shaft (5) is provided at the center of the shuttle frame (3).

4. The special anti-thread-jamming hook mechanism for a quilt sewing machine according to claim 1, characterized in that: The mounting seat (1), the shuttle housing (2), the shuttle frame (3), the positioning groove (4) and the connecting shaft (5) are all made of stainless steel.

5. The special anti-thread-jamming hook mechanism for a quilt sewing machine according to claim 1, characterized in that: The bobbin case (2) and the bobbin frame (3) are both circular in shape.

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