Machine needle detection device of edge-covering sewing machine

Abstract

The utility model relates to the technical field of sewing machines, and discloses a hemming sewing machine needle detection device which comprises a sewing machine, a machine needle is mounted on the sewing machine, a fixing frame is mounted at the upper end of the machine needle, a mounting rod is fixedly connected to one side of the fixing frame, a supporting frame is fixedly connected to the lower end of one side of the mounting rod, and a fixing ring is fixedly connected to one side of the supporting frame. A plurality of springs are fixedly connected to the inner wall of the fixing ring at equal intervals, limiting plates are fixedly connected to the sides, away from the fixing ring, of the springs, and through the arrangement of a circular ring composed of the multiple limiting plates, when the machine needle penetrates through the circular ring, the bent parts extrude the limiting plates, the limiting plates drive the insertion rods to move, and the limiting blocks are clamped to the fixing frame to avoid the mode that the limiting plates restore; therefore, the bending condition of the machine needle can be visually judged after the movement of the limiting plate is visually observed during maintenance, and detection and subsequent maintenance of the machine needle are facilitated.

Description

Technical Field

[0001] This application relates to the technical field of sewing machines, and particularly to a hemming sewing machine needle detection device. Background Art

[0002] A sewing machine is a machine that forms one or more stitches on the sewing material with one or more sewing threads, enabling one or more layers of sewing materials to be interwoven or sewn together. Sewing machines can sew fabrics such as cotton, linen, silk, wool, and artificial fibers, as well as products such as leather, plastic, and paper. The stitches sewn are neat, beautiful, flat, and firm, with a fast sewing speed and easy use.

[0003] Currently, when a hemming sewing machine is used multiple times, it is necessary to repair the sewing needle of the sewing machine to detect whether the sewing needle is tilted or bent. Currently, most detections are carried out by means of comparison for observation and repair. This kind of detection cannot directly detect whether the sewing needle is deformed, resulting in a poor detection effect. Therefore, a hemming sewing machine needle detection device is designed to solve the above-mentioned problems. Utility Model Content

[0004] To solve the problem, this application provides a hemming sewing machine needle detection device.

[0005] The hemming sewing machine needle detection device provided by this application adopts the following technical solutions:

[0006] A hemming sewing machine needle detection device includes a sewing machine, a sewing needle is installed on the sewing machine, a fixing frame is installed at the upper end of the sewing needle, one side of the fixing frame is fixedly connected to a mounting rod, the lower end of one side of the mounting rod is fixedly connected to a support frame, one side of the support frame is fixedly connected to a fixing ring, a number of springs are fixedly connected equidistantly on the inner wall of the fixing ring, and a limiting plate is fixedly connected to the side of the spring away from the fixing ring.

[0007] Preferably, there are eight limiting plates, and the limiting plates form a ring.

[0008] Preferably, an installation groove is opened on the side of the limiting plate away from the spring, and a rolling ball is movably connected in the installation groove.

[0009] Preferably, an insertion rod is fixedly connected to the side of the limiting plate close to the same-side spring, and the insertion rod passes through the fixing ring and is slidably connected to a fixing frame.

[0010] Preferably, a fixing groove is opened at the upper end of the side of the insertion rod close to the fixing frame, and an elastic piece is fixedly connected in the fixing groove, and a limiting block is fixedly connected to the upper end of the elastic piece.

[0011] Preferably, a first threaded rod is threadedly connected to one side of the fixing frame, and a clamping plate is fixedly connected to one side of the first threaded rod.

[0012] Preferably, a second threaded rod is threadedly connected to the mounting rod, and a support plate is fixedly connected to the lower end of the second threaded rod.

[0013] In summary, the present application includes the following beneficial technical effects:

[0014] In the present utility model, through the ring composed of a plurality of limiting plates provided, when the sewing needle passes through the ring, the bending part presses the limiting plate, causing the limiting plate to drive the insertion rod to move, and making the limiting block snap into the fixed frame to prevent the limiting plate from restoring, so that during maintenance, the movement of the limiting plate can be visually observed to directly judge the bending condition of the sewing needle, facilitating the detection of the sewing needle and subsequent maintenance; Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the main body of the application embodiment;

[0016] Figure 2 is a schematic structural diagram of the mounting rod and the fixing frame of the application embodiment;

[0017] Figure 3 is a schematic structural diagram of the fixing ring and the limiting plate of the application embodiment;

[0018] Figure 4 is a three-dimensional structural diagram of the limiting plate and the insertion rod of the application embodiment;

[0019] Figure 5 is a sectional structural diagram of the limiting plate and the insertion rod of the application embodiment.

[0020] Description of the reference numerals: 1, sewing machine; 2, sewing needle; 3, mounting rod; 31, second threaded rod; 32, support plate; 4, fixing frame; 41, first threaded rod; 42, clamping plate; 5, support frame; 6, fixing ring; 7, spring; 8, limiting plate; 81, ball; 9, insertion rod; 91, elastic piece; 92, limiting block; 10, fixing frame. Detailed Description of the Invention

[0021] The following is a further detailed description of the present application with reference to the attached Figures 1-5 drawings.

[0022] The embodiment of the present application discloses a hemming sewing machine needle detection device. Refer to Figures 1-5, A needle detection device for a hemmed sewing machine, including a sewing machine 1, a sewing needle 2 is installed on the sewing machine 1, a fixing frame 4 is installed at the upper end of the sewing needle 2, which plays a role in fixing the fixing ring 6 at the lower end of the sewing needle 2. One side of the fixing frame 4 is fixedly connected to the mounting rod 3. One side of the lower end of the mounting rod 3 is fixedly connected to the support frame 5. One side of the support frame 5 is fixedly connected to the fixing ring 6. A number of springs 7 are fixedly connected to the inner wall of the fixing ring 6 at equal intervals. The springs 7 are fixedly connected to the limiting plate 8 on the side away from the fixing ring 6. By using the thimble 2 to push the limiting plate 8 to move and squeeze the springs 7, when the thimble 2 is overhauled, the deformed and bent part of the thimble 2 can be visually observed by the movement of the limiting plate 8;

[0023] By adopting the above technical solution, there are eight limiting plates 8, and the limiting plates 8 form a ring, as Figure 3 shown, which is beneficial to applying the acting force to the limiting plate 8 when the thimble passes through.

[0024] By adopting the above technical solution, an installation groove is opened on the side of the limiting plate 8 away from the spring 7, and a rolling ball 81 is movably connected in the installation groove, avoiding the situation that the thimble 2 descends and directly contacts the limiting plate 8 and gets stuck.

[0025] By adopting the above technical solution, a plug rod 9 is fixedly connected to the side of the limiting plate 8 close to the same-side spring 7. The plug rod 9 passes through the fixing ring 6 and is slidably connected to the fixing frame 10. A fixing groove is opened at the upper end of the plug rod 9 close to the fixing frame 10, and an elastic piece 91 is fixedly connected in the fixing groove. The upper end of the elastic piece 91 is fixedly connected to the limiting block 92. The plug rod 9 is driven to expose from the fixing frame 10, and the elastic piece 91 in the fixing groove drives the limiting block 92 to expose from the fixing groove, so that the limiting block 92 is clamped to the outer wall of the fixing frame 10, avoiding the restoration of the plug rod 9. At this time, the visually observed limiting plate 8 that has moved after being squeezed can be seen, so as to visually display that one side of the sewing needle 2 is deformed and bent.

[0026] By adopting the above technical solution, a first threaded rod 41 is threadedly connected to one side of the fixing frame 4. A clamping plate 42 is fixedly connected to one side of the first threaded rod 41. The first threaded rod 41 can be used to drive the clamping plate 42, and the clamping plate 42 and the fixing frame 4 clamp the upper installation pipe of the thimble 2, so that the whole is fixed on one side of the thimble 2.

[0027] By adopting the above technical solution, a second threaded rod 31 is threadedly connected to the mounting rod 3. A support plate 32 is fixedly connected to the lower end of the second threaded rod 31. The second threaded rod 31 drives the support plate 32 to descend and contact the surface of the processing table of the sewing machine 1, so that the support plate 32 plays an auxiliary supporting role.

[0028] The implementation principle of a needle detection device for a hemming sewing machine in an embodiment of the present application is as follows: The fixing frame 4 is inserted from the rear of the upper mounting tube of the sewing needle 2, and the first threaded rod 41 is rotated to drive the clamping plate 42 to move, so that the clamping plate 42 clamps the upper mounting tube of the sewing needle 2, thereby fixing the mounting rod 3 and fixing the fixing ring 6 at the upper end of the lower support frame 5, making the center of the fixing ring 6 align with the sewing needle 2. Then, hold the support plate 32 by hand and rotate the second threaded rod 31 to drive the support plate 32 to descend and contact the surface of the processing table of the sewing machine 1, so that the support plate 32 plays an auxiliary supporting role to ensure the stability of the fixing ring 6 on one side of the support frame 5. After that, start the sewing machine 1, and the sewing machine 1 drives the sewing needle 2 to descend. When the sewing needle 2 descends, it will pass through the center of the circle formed by the limiting plates 8. At this time, if the sewing needle 2 is deformed and tilted, the tilted side will squeeze the rolling ball 81, causing the rolling ball 81 to be squeezed and drive the limiting plate 8 to move away from the center of the circle, and squeeze the spring 7 to contract, so that the limiting plate 8 drives the insertion rod 9 to move, and the insertion rod 9 protrudes from the fixing frame 10, and the elastic piece 91 in the fixing groove drives the limiting block 92 to protrude from the fixing groove, so that the limiting block 92 is clamped to the outer wall of the fixing frame 10 to prevent the insertion rod 9 from restoring. At this time, it can be directly observed that the limiting plate 8 moves after being squeezed, so as to directly show that one side of the sewing needle 2 is deformed and bent.

[0029] Finally, several points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the communication inside two components, and can be directly connected. "Upper", "lower", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change;

[0030] Second: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments of the present disclosure are involved. For other structures, reference can be made to the usual designs. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0031] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

[0032] The above are all the preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A needle detection device for a hemmed sewing machine, comprising a sewing machine (1) with a sewing needle (2) mounted thereon, characterized in that: A fixing frame (4) is installed at the upper end of the sewing needle (2). One side of the fixing frame (4) is fixedly connected to an installation rod (3). One side of the lower end of the installation rod (3) is fixedly connected to a support frame (5). One side of the support frame (5) is fixedly connected to a fixing ring (6). A plurality of springs (7) are fixedly connected to the inner wall of the fixing ring (6) at equal intervals. One side of the spring (7) away from the fixing ring (6) is fixedly connected to a limiting plate (8).

2. The edge - wrapping sewing machine needle detection device according to claim 1, characterized in that: There are eight of the limiting plates (8), and the limiting plates (8) form a ring.

3. The edge - wrapping sewing machine needle detection device according to claim 1, characterized in that: An installation groove is formed on one side of the limiting plate (8) away from the spring (7), and a rolling ball (81) is movably connected in the installation groove.

4. The edge - wrapping sewing machine needle detection device according to claim 1, characterized in that: One side of the limiting plate (8) close to the spring (7) on the same side is fixedly connected to an insertion rod (9), and the insertion rod (9) passes through the fixing ring (6) and is slidably connected to a fixing frame (10).

5. The edge - wrapping sewing machine needle detection device according to claim 4, wherein: A fixing groove is formed at the upper end of one side of the insertion rod (9) close to the fixing frame (10), and an elastic piece (91) is fixedly connected in the fixing groove. The upper end of the elastic piece (91) is fixedly connected to a limiting block (92).

6. The edge - wrapping sewing machine needle detection device according to claim 1, wherein: One side of the fixing frame (4) is threadedly connected to a first threaded rod (41), and one side of the first threaded rod (41) is fixedly connected to a clamping plate (42).

7. The edge-binding sewing machine needle detection device according to claim 1, characterized in that: A second threaded rod (31) is threadedly connected to the installation rod (3), and the lower end of the second threaded rod (31) is fixedly connected to a support plate (32).

Images