Built-in sewing machine threader

Abstract

The utility model relates to a built -in sewing machine thread winder. Mainly solve the existing sewing machine thread winder to exist inconvenient installation, unattractive appearance and the problem of poor installation stability. Including mounting seat, transmission assembly, spindle, positioning switch piece and stopper, transmission assembly with the spindle linkage connection, the spindle rotatable installation in mounting seat, the stopper is hinged in mounting seat, positioning switch piece is connected with stopper, stopper can be limited with transmission assembly, its characterized in that: the outer ring of mounting seat is equipped with the positioning ring that sinks and extends outward and presents the protruding, the both ends of positioning ring are equipped with the ear piece that extends outward and presents the corresponding distribution, be equipped with the installation through -hole on ear piece. The sewing machine thread winder adopts built -in installation mode, through sinking and extending outward and presenting the protruding positioning structure in the outer ring design of mounting seat, convenient operation, install upward, effectively guarantee installation stability and reliability, and appearance is more beautiful.

Description

Technical Field

[0001] This utility model relates to a sewing device, and more particularly to a built-in sewing machine winder. 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. A sewing machine winder is a practical tool for improving sewing efficiency. They come in manual and automatic versions, with core functions including standardized thread winding and anti-knotting. Some models also support embroidery modes. Manual winders involve cleaning the winder and securing the thread, rotating it at a constant speed to maintain appropriate tension, and then cutting and storing the thread after winding. Automatic winders involve installing a bobbin and securing the thread end, setting the tension, starting the machine, and automatically stopping when fully wound for immediate use. Currently, most automatic winders on the market are suitable for batch sewing and embroidery. However, due to structural limitations, most automatic winders are installed downwards, which can lead to insecure installation, loosening, and an unsightly appearance. Utility Model Content

[0003] In order to overcome the shortcomings and deficiencies of the prior art, this utility model provides a built-in sewing machine winder, which solves the problems of inconvenient installation, unsightly appearance and poor installation stability of existing sewing machine winders.

[0004] The technical solution of this utility model is: a built-in sewing machine winding device, including a mounting base, a transmission assembly, a main shaft, a positioning paddle, and a limiting rod. The transmission assembly is linked to the main shaft, the main shaft is rotatably mounted on the mounting base, the limiting rod is hinged to the mounting base, the positioning paddle is connected to the limiting rod, and the limiting rod and the transmission assembly can be matched for limiting. The device is characterized in that: the outer ring of the mounting base is provided with a recessed and outwardly extending positioning ring, and both ends of the positioning ring are provided with outwardly extending and correspondingly distributed ear pieces, and the ear pieces are provided with mounting through holes.

[0005] The upper side of the positioning ring is provided with an upward protruding locking platform, which is engaged with the mounting platform.

[0006] A positioning shaft is installed at the lower end of the mounting base. A rotating arm and a rotating sleeve are hinged to the positioning shaft. A rotating top block is fixed at the lower end of the limiting rod. The rotating top block is in a pressing fit with the rotating arm, and the rotating arm and the rotating sleeve are linked around the positioning shaft. The transmission assembly and the main shaft are installed inside the rotating sleeve. Moving the positioning paddle drives the limiting rod to rotate, and the rotating top block rotates to press the rotating arm to rotate. The rotating arm drives the rotating sleeve to rotate and deflect along the positioning shaft, and drives the transmission assembly and the main shaft to shift, thereby separating the transmission assembly from the limiting rod.

[0007] The rotating top block is provided with a convex locking platform, and the rotating arm is provided with a V-shaped groove. The lower part of the V-shaped groove is an inclined guide surface that forms a top-pressing fit with the convex locking platform.

[0008] The convex mounting plate and the rotating top block are integrally connected and formed.

[0009] A cover is installed at the upper end of the spindle, and a downwardly extending protruding ring is provided at the inner end of the cover. The cover is fixed to the spindle by the protruding ring.

[0010] The cover is a cone shape with a small upper part.

[0011] The lower end of the mounting base is provided with a reinforcing rib, which is integrally formed with the mounting base.

[0012] The upper surface of the cover is provided with a recessed placement groove.

[0013] The present invention has the following advantages: the sewing machine winding device adopts a built-in installation method. By designing the outer ring of the mounting base to sink and extend outward to form a protruding positioning structure, it is easy to operate. The upward installation effectively ensures the stability and reliability of the installation, and the appearance is more beautiful. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of this utility model from another angle.

[0016] Figure 3 This is a schematic diagram of the rotating sleeve and rotating top block in this utility model.

[0017] Figure 4 This is a schematic diagram of the protective cover in this utility model.

[0018] In the figure, 1 is the mounting base, 2 is the transmission assembly, 3 is the main shaft, 4 is the positioning paddle, 5 is the limit rod, 6 is the positioning ring, 7 is the ear piece, 8 is the mounting through hole, 9 is the clamping platform, 10 is the positioning shaft, 11 is the rotating arm, 12 is the rotating sleeve, 13 is the rotating top block, 14 is the convex clamping platform, 15 is the V-groove, 151 is the inclined guide surface, 16 is the protective cover, 17 is the convex ring, 18 is the reinforcing rib, and 19 is the placement groove. Detailed Implementation

[0019] The following describes further embodiments of this utility model: like Figure 1As shown, a built-in sewing machine winding device includes a mounting base 1, a transmission assembly 2, a main shaft 3, a positioning paddle 4, and a limiting rod 5. The transmission assembly 2 is linked to the main shaft 3, and the main shaft 3 is rotatably mounted on the mounting base 1. The limiting rod 5 is hinged to the mounting base 1, and the positioning paddle 4 is connected to the limiting rod 5. The limiting rod 5 and the transmission assembly 2 can be matched for limiting. The outer ring of the mounting base 1 is provided with a recessed and outwardly extending positioning ring 6. Both ends of the positioning ring 6 are provided with outwardly extending and correspondingly distributed ear pieces 7, and the ear pieces 7 are provided with mounting through holes 8. By incorporating a recessed mounting structure on the outer ring of the mounting base 1, the thread winder can be installed upwards on the sewing machine. The mounting base can be concealed beneath the mounting platform. An upward-protruding mounting groove is provided on the sewing machine's mounting platform, allowing the mounting base to fit snugly within it. Fasteners secure the lugs to the mounting platform. Furthermore, the outward-protruding positioning ring also serves as an upper limit stop. According to this design, the sewing machine thread winder adopts a built-in installation method. The recessed and outward-extending positioning structure on the outer ring of the mounting base facilitates operation, allows for upward installation, effectively ensures installation stability and reliability, and results in a more aesthetically pleasing appearance.

[0020] In this utility model, such as Figure 1 As shown, the upper side of the positioning ring 6 is provided with an upwardly protruding locking platform 9, which engages with the mounting platform. By providing the locking platform, it engages with the mounting platform of the sewing machine to prevent rotation and ensure secure installation.

[0021] In this utility model, such as Figure 1 , Figure 2As shown, a positioning shaft 10 is installed at the lower end of the mounting base 1. A rotating arm 11 and a rotating sleeve 12 are respectively hinged on the positioning shaft 10. A rotating top block 13 is fixed at the lower end of the limiting rod 5. The rotating top block 13 is in a pressing fit with the rotating arm 11, and the rotating arm 11 and the rotating sleeve 12 are linked around the positioning shaft 10. The transmission assembly 2 and the main shaft 3 are installed inside the rotating sleeve 12. The positioning paddle 4 is moved to drive the limiting rod 5 to rotate, and the rotating top block 13 rotates to press the rotating arm 11 to rotate. The rotating arm 11 drives the rotating sleeve 12 to rotate and deflect along the positioning shaft 10, and drives the transmission assembly 2 and the main shaft 3 to shift, thereby separating the transmission assembly 2 from the limiting rod 5. When the winder needs to wind, the positioning paddle 4 drives the rotating top block 13 on the limit rod 5 to rotate counterclockwise. The rotating top block 13 presses against the rotating arm 11, thereby driving the rotating arm 11 to rotate. Since the rotating arm is connected to the rotating sleeve, the rotating arm will drive the rotating sleeve to rotate along the positioning shaft, thereby causing the main shaft to deflect. The transmission component is separated from the limit rod so that the main shaft can rotate for winding. After the wire core at the upper end of the main shaft is gradually wound, the positioning paddle 4 is reset to prepare for the next winding.

[0022] In this utility model, such as Figure 2 As shown, the rotating top block 13 is provided with a convex mounting plate 14, and the rotating arm 11 is provided with a V-shaped groove 15. The lower part of the V-shaped groove 15 is an inclined guide surface 151 that forms a top-pressing fit with the convex mounting plate 14. The rotating top block 13 is provided with a convex locking platform 14, and the rotating arm 11 is provided with a V-shaped groove 15. The lower part of the V-shaped groove 15 is an inclined guide surface 151 that forms a pressing fit with the convex locking platform 14. When the winder needs to wind, the rotating top block 13 on the limiting rod 5 is rotated counterclockwise by moving the positioning paddle 4. The convex locking platform 14 on the rotating top block 13 presses against the V-shaped groove 15 and slides along its inclined guide surface 151, thereby driving the rotating arm 11 to rotate. Since the rotating arm is connected to the rotating sleeve, the rotating arm will drive the rotating sleeve to rotate along the positioning shaft, thereby driving the main shaft to deflect. The transmission component is separated from the limiting rod so that the main shaft can rotate for winding. After the wire core at the upper end of the main shaft is gradually wound, the positioning paddle 4 is reset to prepare for the next winding.

[0023] In this invention, as shown in the figure, the convex mounting plate 14 and the rotating top block 13 are integrally connected. This integral connection between the convex mounting plate 14 and the rotating top block 13 facilitates processing and ensures strong operational stability.

[0024] In this invention, as shown in the figure, a cover 16 is installed on the upper end of the main shaft 3. The inner end of the cover 16 has a downwardly extending protruding ring 17, and the cover 16 is fixed to the main shaft 3 by the protruding ring 17. By providing a downwardly extending protruding ring 17 at the inner end of the cover 16, the cover is installed on the main shaft 3, thereby improving the installation firmness and reliability of the cover.

[0025] In this invention, as shown in the figure, the cover 16 is a cone shape with a smaller upper part. By making the cover 16 a cone shape with a smaller upper part, the stability of the wire core at its upper end is improved when the wire is wound and rotated. The recessed placement groove 19 provided on the upper end surface of the cover 16 can also effectively improve the placement firmness of the wire core.

[0026] In this utility model, as shown in the figure, the lower end of the mounting base 1 is provided with a reinforcing rib 18, which is integrally formed with the mounting base 1. By providing a reinforcing rib 18 at the lower end of the mounting base 1, the overall firmness of the mounting base can be effectively improved, and its installation strength can be effectively increased. Furthermore, the integral formation of the reinforcing rib 18 with the mounting base 1 facilitates processing and results in a reasonable structure.

Claims

1. A built-in sewing machine winding device, comprising a mounting base (1), a transmission assembly (2), a main shaft (3), a positioning paddle (4), and a limiting rod (5), wherein the transmission assembly (2) is linked to the main shaft (3), the main shaft (3) is rotatably mounted on the mounting base (1), the limiting rod (5) is hinged to the mounting base (1), the positioning paddle (4) is connected to the limiting rod (5), and the limiting rod (5) and the transmission assembly (2) are capable of limiting engagement, characterized in that: The outer ring of the mounting base (1) is provided with a recessed and outwardly protruding positioning ring (6), and the two ends of the positioning ring (6) are provided with outwardly extending and correspondingly distributed ear pieces (7), and the ear pieces (7) are provided with mounting through holes (8).

2. The built-in sewing machine winding device according to claim 1, characterized in that: The upper side of the positioning ring (6) is provided with an upward protruding locking platform (9), which is engaged with the mounting platform.

3. The built-in sewing machine thread winder according to claim 1, characterized in that: The lower end of the mounting base (1) is equipped with a positioning shaft (10). A rotating arm (11) and a rotating sleeve (12) are respectively hinged on the positioning shaft (10). A rotating top block (13) is fixed at the lower end of the limiting rod (5). The rotating top block (13) is pressed against the rotating arm (11), and the rotating arm (11) and the rotating sleeve (12) are linked around the positioning shaft (10). The transmission assembly (2) and the main shaft (3) are installed in the rotating sleeve (12). The positioning paddle (4) is moved to drive the limiting rod (5) to rotate and the rotating top block (13) rotates to press the rotating arm (11) to rotate. The rotating arm (11) drives the rotating sleeve (12) to rotate and deflect along the positioning shaft (10) and drive the transmission assembly (2) and the main shaft (3) to shift, thus separating the transmission assembly (2) from the limiting rod (5).

4. A built-in sewing machine thread winder according to claim 3, characterized in that: The rotating top block (13) is provided with a convex mounting plate (14), and the rotating arm (11) is provided with a V-groove (15). The lower part of the V-groove (15) is an inclined guide surface (151) that forms a top-pressing fit with the convex mounting plate (14).

5. A built-in sewing machine winding device according to claim 4, characterized in that: The convex mounting plate (14) and the rotating top block (13) are integrally connected and formed.

6. A built-in sewing machine winding device according to claim 1, 2, 3, 4, or 5, characterized in that: The upper end of the main shaft (3) is equipped with a cover (16), and the inner end of the cover (16) is provided with a downwardly extending protruding ring (17). The cover (16) is fixed to the main shaft (3) by the protruding ring (17).

7. A built-in sewing machine winding device according to claim 6, characterized in that: The cover (16) is a cone shape with a small upper part.

8. A built-in sewing machine winding device according to claim 1, 2, 3, 4, or 5, characterized in that: The lower end of the mounting base (1) is provided with a reinforcing rib (18), and the reinforcing rib (18) and the mounting base (1) are integrally formed.

9. A built-in sewing machine winding device according to claim 6, characterized in that: The upper surface of the cover (16) is provided with a recessed placement groove (19).

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