Power transmission mechanism of sewing machine

Abstract

The utility model discloses a sewing machine power transmission mechanism which comprises a sewing machine body, the sewing machine body comprises a table frame, a sewing machine head, a sewing machine driven wheel and a pedal frame, one end of the sewing machine head is integrally provided with the sewing machine driven wheel, and the pedal frame is fixedly installed at the bottom end of the table frame. The sewing machine head is fixedly installed on the table frame. The power transmission mechanism of the sewing machine is driven by electric power, saves time and labor, relieves pressure borne by two feet, can work continuously and stably, greatly improves sewing efficiency, is adjustable in sewing speed, enables a user to flexibly select the sewing speed according to personal habits and requirements, and is convenient to use. The power transmission mechanism can be adjusted according to the operation proficiency of a user and the requirement for sewing clothes, the sewing requirements in different scenes are met, the frequency converter operation interface is reasonable in layout, the foot switch is convenient to use, the belt tightness can be automatically adjusted, and the power transmission mechanism can be qualified for various scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machine equipment, in particular to a power transmission mechanism for a sewing machine. Background Art

[0002] Since its birth, the sewing machine has become an indispensable tool in the textile industry. It not only greatly improves the efficiency of clothing production, but also makes home sewing simple and easy, allowing countless family members and craftsmen to easily realize personalized design and creation.

[0003] With the continuous advancement of technology, modern sewing machines are becoming more and more powerful and have diversified designs. For example, the patent with publication number CN211546890U discloses a sewing machine that is easy to operate, including a workbench, a support plate, an anti-slip pad, a knitting machine, a protective box, a pluggable dust-proof spool seat structure, a slidable sealed storage cover structure, a rotatable power transmission plate structure, a slide groove, a through hole, a driven pulley, a manual wheel, a transmission connecting rod, a driving pulley, a transmission belt and a positioning plate. The arrangement of the first connecting seat, square head bolt and supporting tube of the utility model is conducive to the placement of the bobbin and convenient for sewing cloth; the arrangement of the sliding block, adsorption block, second shielding plate, workbench and slide groove is conducive to the replacement of the bottom line and convenient for sewing cloth; the arrangement of the rotating rod, foot pedal, connecting tube, inverted L-shaped connecting rod and second connecting seat is conducive to rotating the active pulley and performing transmission work through the driven pulley, which is convenient for power transmission work and convenient for exercising the workers' legs. However, the sewing machine has the following technical problems: the power transmission method of the existing sewing machines is still mostly human-driven, that is, the foot pedal is used, and the transmission rod and rocker are used to drive the sewing machine head, which is not labor-saving enough during use and is still relatively laborious for long-term workers.

[0004] This case was created to solve the above problems. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the deficiencies in the prior art, the present invention provides a power transmission mechanism for a sewing machine, which solves the problems raised in the above-mentioned background technology.

[0007] (2) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a sewing machine power transmission mechanism, including a sewing machine body, the sewing machine body including a table frame, a sewing machine head, a sewing machine driven wheel and a pedal frame, a sewing machine driven wheel is integrated into one end of the sewing machine head, the pedal frame is fixedly installed at the bottom end of the table frame, and the sewing machine head is fixedly installed on the table frame.

[0009] Preferably, a box body is provided on one side of the sewing machine head, the box body is fixedly mounted on the table frame, a driving motor is provided inside the box body, and the position of the driving motor can be adjusted inside the box body.

[0010] Preferably, a gearbox is integrally connected to the driving motor, one end of the gearbox is fixedly connected to a driving wheel, and the driving wheel is connected to the driven wheel of the sewing machine through a belt.

[0011] Preferably, the drive motor is electrically connected to a foot switch via a wire, the foot switch is fixedly mounted on the pedal frame, the drive motor is also electrically connected to a frequency converter, and the frequency converter is equipped with a speed regulating switch.

[0012] Preferably, sliders are fixedly connected to both sides of the bottom of the driving motor, and slide rails are provided in the box body. The driving motor is slidably connected to the box body, and the middle end of its bottom is threadedly connected to the box body through a screw sleeve and a screw rod, and one end of the screw rod passes through the box body and is fixedly connected to a handle.

[0013] Preferably, a guide wheel is fixedly provided inside the box body, and the guide wheel is transmission-connected to a belt between the driving wheel and the driven wheel of the sewing machine.

[0014] (3) Beneficial effects

[0015] After adopting the above technical solution, the present invention has the following advantages compared with the existing technology: the present invention provides a power transmission mechanism for a sewing machine, which is driven by electricity, saves time and effort, relieves the pressure on the feet, can work continuously and stably, greatly improves the sewing efficiency, and the sewing speed is adjustable. The sewing speed can be flexibly selected by the user according to personal habits and needs, and can be adjusted according to the user's operating proficiency and the need to sew clothes to meet the sewing needs in different scenarios. The power transmission mechanism of the sewing machine has a reasonable layout of the inverter operation interface, the foot switch is easy to use, and the belt tightness can also be adjusted by itself. Whether it is daily household sewing or the production needs of small clothing processing factories, the power transmission mechanism can be used. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the power transmission mechanism of the sewing machine;

[0017] Figure 2 This is a top view of the structure of the table frame, box body and its internal components of the utility model.

[0018] In the figure: 1. sewing machine body; 101. table frame; 102. sewing machine head; 103. sewing machine driven wheel; 104. pedal frame; 2. box body; 201. drive motor; 202. drive wheel; 203. inverter; 204. foot switch; 205. speed control switch; 206. slider; 207. slide rail; 208. screw rod; 209. screw sleeve; 210. gearbox; 211. guide wheel. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below through the accompanying drawings and examples.

[0020] like Figure 1-2 As shown: A sewing machine power transmission mechanism includes a sewing machine body 1, the sewing machine body 1 includes a table frame 101, a sewing machine head 102, a sewing machine driven wheel 103 and a pedal frame 104, the sewing machine head 102 is integrally provided with a sewing machine driven wheel 103 at one end, the pedal frame 104 is fixedly mounted on the bottom end of the table frame 101, and the sewing machine head 102 is fixedly mounted on the table frame 101.

[0021] A box body 2 is provided on one side of the sewing machine head 102 . The box body 2 is fixedly mounted on the table frame 101 . A driving motor 201 is provided inside the box body 2 . The driving motor 201 can be adjusted in position inside the box body 2 .

[0022] A gearbox 210 is integrally connected to the drive motor 201, and one end of the gearbox 210 is fixedly connected to a drive wheel 202. The drive wheel 202 is connected to the sewing machine driven wheel 103 through a belt. The drive wheel 202 can drive the sewing machine driven wheel 103 to rotate, so that the sewing machine head 102 can perform normal sewing operations. The integrated setting of the gearbox 210 and the drive motor 201 enables the drive motor to have the function of variable frequency speed adjustment.

[0023] The drive motor 201 is electrically connected to a foot switch 204 via a wire. The foot switch 204 is fixedly mounted on the pedal frame 104. The start and stop of the drive motor 201 are controlled by the foot switch 204. The drive motor 201 is also electrically connected to a frequency converter 203. The frequency converter 203 is equipped with a speed control switch 205. The gearbox 210 of the drive motor 201 is controlled and adjusted by the speed control switch 205 and the frequency converter 203, so that the speed of the drive motor 201 can be adjusted.

[0024] The bottom sides of the driving motor 201 are fixedly connected with sliders 206, and a slide rail 207 is provided in the box body 2. The driving motor 201 is slidably connected to the box body 2, and the middle end of its bottom is threadedly connected to the box body 2 through a screw sleeve 209 and a screw rod 208. One end of the screw rod 208 passes through the box body 2 and is fixedly connected to a handle. Turning the handle causes the screw rod 208 to rotate. The sliders 206 are fixed to the bottom sides of the driving motor 201, and the slide rail 207 is fixed inside the box body 2, while the screw sleeve 209 is fixed to the middle end of the bottom of the driving motor 201, and the screw rod 208 is rotatably connected to the box body 2. The screw rod 208 can be rotated by turning the handle. Due to the threaded connection between the screw sleeve 209 and the screw rod 208, and the driving motor 201 is limited by the slider 206 and the slide rail 207, when the screw rod 208 rotates, it drives the screw sleeve 208 and the driving motor 201 to move vertically, which is convenient for installing the belt and adjusting the tightness of the belt.

[0025] A guide wheel 211 is fixedly provided inside the box body 2, and the guide wheel 211 is connected to the belt between the driving wheel 202 and the driven wheel 103 of the sewing machine. The setting of the guide wheel 211 guides the belt between the driving wheel 202 and the driven wheel 103 of the sewing machine, so that the belt is not easy to loosen.

[0026] The working principle of this device is as follows: when in use, the box body 2 is fixedly installed on the table frame 101, so that the belt is sleeved on the guide wheel 211, the driving wheel 202 and the sewing machine driven wheel 103, and the screw rod 208 can be rotated by turning the handle. When the screw rod 208 rotates, it drives the screw sleeve 209 and the driving motor 201 to move vertically, so that it is convenient to install the belt and adjust the tightness of the belt. After the installation is completed, the user steps on the foot switch 204 to control the start and stop of the driving motor 201, so that the sewing machine head 102 can perform normal sewing operations, and then the speed control switch 205 and the frequency converter 203 are used to control and adjust the gearbox 210 of the driving motor 201, so that the driving motor 201 can adjust the speed, thereby adjusting the rotation speed of the sewing machine driven wheel 103, and changing the sewing speed of the sewing machine needle.

[0027] The above description is based on the embodiments for inspiration. Through the above description, relevant personnel can make various changes and modifications without departing from the scope of the invention. The technical scope of this new type of use is not limited to the content of the specification, and its protection scope must be determined according to the scope of the claims.

Claims

1. A power transmission mechanism for a sewing machine, comprising a sewing machine body (1), characterized in that: The sewing machine body (1) comprises a table frame (101), a sewing machine head (102), a sewing machine driven wheel (103) and a pedal frame (104); one end of the sewing machine head (102) is integrally provided with the sewing machine driven wheel (103); the pedal frame (104) is fixedly mounted on the bottom end of the table frame (101); and the sewing machine head (102) is fixedly mounted on the table frame (101).

2. A power transmission mechanism for a sewing machine according to claim 1, characterized in that: A box body (2) is provided on one side of the sewing machine head (102), and the box body (2) is fixedly mounted on the table frame (101). A driving motor (201) is provided inside the box body (2), and the position of the driving motor (201) can be adjusted inside the box body (2).

3. A power transmission mechanism for a sewing machine according to claim 2, characterized in that: The drive motor (201) is integrally connected to a gearbox (210), one end of the gearbox (210) is fixedly connected to a drive wheel (202), and the drive wheel (202) is transmission-connected to a driven wheel (103) of a sewing machine via a belt.

4. A power transmission mechanism for a sewing machine according to claim 3, characterized in that: The driving motor (201) is electrically connected to a foot switch (204) via a wire. The foot switch (204) is fixedly mounted on the pedal frame (104). The driving motor (201) is also electrically connected to a frequency converter (203). The frequency converter (203) is equipped with a speed regulating switch (205).

5. A power transmission mechanism for a sewing machine according to claim 4, characterized in that: Slide blocks (206) are fixedly connected to both sides of the bottom of the driving motor (201), and a slide rail (207) is provided in the box body (2). The driving motor (201) is slidably connected to the box body (2), and the middle end of the bottom is threadedly connected to the box body (2) through a screw sleeve (209) and a screw rod (208), and one end of the screw rod (208) passes through the box body (2) and is fixedly connected to a handle.

6. A power transmission mechanism for a sewing machine according to claim 5, characterized in that: A guide wheel (211) is fixedly provided inside the box body (2), and the guide wheel (211) is transmission-connected to a belt between the driving wheel (202) and the driven wheel (103) of the sewing machine.

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