Normal sewing machine with sewing machine head convenient to disassemble and assemble

Abstract

The utility model relates to the field of lockstitch sewing machines, in particular to a lockstitch sewing machine with a sewing machine head convenient to disassemble and assemble. The machine head comprises a table plate, a machine head body is clamped to the upper side of the table plate, buckles are clamped to the four corners of the lower side of the machine head body, a first sliding rail is fixedly connected to the lower side of the table plate, a button is slidably connected to the inner wall of the first sliding rail, the upper end of the button penetrates through the table plate, and a motor is installed on the side, away from the button, of the machine head body. A plug is inserted into the input end of the motor, a sliding plate is connected to the lower side of the plug in a sliding mode, and when a worker disassembles the machine head, the buckle for locking the machine head body can be removed in a one-key mode only by pressing a button. And meanwhile, the motor and the plug can be disconnected through the operation, so that the machine head can be smoothly removed. The problem that a connecting wire at the pedal is possibly damaged due to the fact that a worker forgets to pull out the connecting plug due to negligence is effectively solved, the use cost is remarkably reduced, and the service life of a product is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of flat sewing machines, and more specifically, to a flat sewing machine with a sewing head that is convenient to disassemble and assemble. Background Art

[0002] A flat sewing machine, also known as a flatbed machine, is usually referred to as a single-needle flat sewing machine by people. This machine mainly consists of three parts: a sewing head, a table board, and a frame. The design of the frame is very unique, and it is provided with a pedal on it. The function of this pedal is to adjust the sewing speed by controlling the tightness of the clutch. Users can step on this pedal according to their needs to obtain different sewing speeds.

[0003] The function of the pedal is not only to control the sewing speed, but it is also connected to the sewing head through a connecting wire. Such a design enables the sewing head to receive the instructions from the pedal, thereby realizing different sewing operations. During the installation process of the sewing head, users only need to directly place the sewing head on the table board and then insert the connecting plug connected to the pedal to complete the installation process.

[0004] However, during the disassembly process of the sewing head, users often forget an important step, which is to unplug the connecting plug. They often directly remove the sewing head and forget this step. The consequence of doing this is that the connecting wire at the pedal will be damaged. This is because if the connecting plug is not unplugged, then during the process of removing the sewing head, the connecting wire will be pulled, resulting in damage to the wire.

[0005] In view of this, we propose a flat sewing machine with a sewing head that is convenient to disassemble and assemble. Summary of the Utility Model

[0006] The purpose of the present utility model is to solve the above-mentioned drawbacks and provide a flat sewing machine with a sewing head that is convenient to disassemble and assemble;

[0007] To achieve the above purpose, the present utility model provides a flat sewing machine with a sewing head that is convenient to disassemble and assemble, including a table board. A sewing head body is snap-connected to the upper side of the table board. Four corners of the lower side of the sewing head body are all snap-connected with buckles. A first slide rail is fixedly connected to the lower side of the table board. A button is slidably connected to the inner wall of the first slide rail. The upper end of the button penetrates through the table board. A motor is installed on one side of the sewing head body away from the button. A plug is inserted into the input end of the motor. A slide plate is slidably connected to the lower side of the plug. A second slide rail is fixedly connected to the upper side of the table board near the motor. A base is slidably connected to the inner wall of the second slide rail. The side wall of the slide plate is slidably connected to the inner wall of the base.

[0008] As a further improvement of the present technical solution, rotating rods are rotatably connected to both sides of the button. A sliding groove is rotatably connected to the side of the buckle away from the machine head body. The bottom of the sliding groove is fixedly connected to the upper side of the table board. A sliding rod is slidably connected to the inner wall of the sliding groove. One end of the sliding rod close to the button is rotatably connected to one end of the rotating rod away from the button. A linkage rod is rotatably connected to the upper side of the sliding rod and the side wall of the buckle together.

[0009] As a further improvement of the present technical solution, a rotating shaft is rotatably connected to the inner wall of the lower end of the first sliding rail. A gear is fixedly connected to one end of the rotating shaft close to the inner wall of the first sliding rail. A rack is vertically fixedly connected to the lower end of the button. The tooth grooves of the rack are meshed with the teeth of the gear.

[0010] As a further improvement of the present technical solution, a belt is rotatably connected to one end of the rotating shaft close to the motor. A threaded rod is rotatably connected to the inner wall of the second sliding rail. One end of the threaded rod away from the motor is rotatably connected to the inner wall of the belt. The outer wall of the threaded rod is threadedly connected to the inner wall of the base. A spring is fixedly connected to the inner wall of the base and one end of the sliding plate away from the plug together.

[0011] As a further improvement of the present technical solution, table legs are fixedly connected to the four corners of the lower side of the table board. A pedal is rotatably connected to the opposite sides of the table legs. An electric wire is fixedly connected to the circuit connection port of the pedal and the circuit connection port of the plug.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] In the flat sewing machine with the sewing machine head being easily disassembled and assembled, when the staff disassembles the machine head, they only need to press the button to release the buckle for locking the machine head body with one key. At the same time, this operation can also disconnect the connection between the motor and the plug, facilitating the smooth removal of the machine head. This not only effectively prevents the problem that the connecting wire at the pedal may be damaged due to the staff's negligence of forgetting to unplug the connecting plug, but also significantly reduces the use cost and extends the service life of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0015] Figure 2 It is a schematic diagram of the first cross-sectional structure of Embodiment 1 of the present utility model;

[0016] Figure 3 It is a schematic diagram of the second cross-sectional structure of Embodiment 1 of the present utility model;

[0017] Figure 4 It is for Embodiment 1 of the present utility model Figure 1 The enlarged structure schematic diagram at A in;

[0018] Figure 5 For the Figure 2 magnified structural schematic diagram at position B in Embodiment 1 of the present utility model;

[0019] Figure 6 For the Figure 3 magnified structural schematic diagram at position C in Embodiment 1 of the present utility model.

[0020] The meanings of each label in the figure are as follows:

[0021] 100, table board; 101, headstock body; 102, pedal; 103, table leg; 104, motor; 105, electric wire; 106, plug

[0022] 200, first slide rail; 201, button; 202, rotating rod; 203, slide bar; 204, chute; 205, buckle; 206, linkage rod;

[0023] 300, rotating shaft; 301, gear; 302, rack; 303, belt; 304, second slide rail; 305, threaded rod; 306, base; 307, slide plate; 308, spring. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] A flat sewing machine, also known as a flat bed machine, is usually called a single-needle flat sewing machine. This machine mainly consists of three parts: a headstock, a table board, and a frame. The design of the frame is very unique, and it is provided with a pedal. The function of this pedal is to adjust the sewing speed by controlling the tightness of the clutch. Users can obtain different sewing speeds by stepping on this pedal according to their needs.

[0026] The function of the pedal is not only to control the sewing speed, but it is also connected to the headstock through an electric wire. Such a design enables the headstock to receive the instructions from the pedal, thereby realizing different sewing operations. During the installation of the headstock, users only need to directly place the headstock on the table board and then insert the connection plug connecting to the pedal to complete the installation process.

[0027] However, during the process of disassembling the sewing head, users often forget an important step, which is to unplug the connection plug. They often directly remove the sewing head without remembering this step. The consequence of doing so is that the connecting wire at the pedal will be damaged. This is because if the connection plug is not unplugged, then during the process of removing the sewing head, the connecting wire will be pulled, resulting in damage to the wire.

[0028] Please refer to Figure 1 - Figure 6 As shown, this embodiment provides a flat sewing machine with a conveniently disassembled and assembled sewing head, including a table board 100 for installing a sewing machine. The upper side of the table board 100 is snap-connected with a sewing head body 101, which is the specific working component of the sewing machine. At the four corners of the lower side of the sewing head body 101, there are snap-fasteners 205 for snap-connecting the sewing head body 101 to make it more stable during operation. The lower side of the table board 100 is fixedly connected with a first slide rail 200 for the button 201 to slide. The inner wall of the first slide rail 200 is slidably connected with a button 201 for locking and releasing the sewing head body 101. The upper end of the button 201 penetrates through the table board 100. On the side of the sewing head body 101 away from the button 201, there is a motor 104, which is the power output source of the sewing machine. The input end of the motor 104 is plugged with a plug 106 for connecting the wire 105 between the pedal 102 and the motor 104. The lower side of the plug 106 is slidably connected with a slide plate 307 for driving the plug 106 to insert into the motor 104. The upper side of the table board 100 near the motor 104 is fixedly connected with a second slide rail 304 for the base 306 to slide. The inner wall of the second slide rail 304 is slidably connected with a base 306, and the inner wall of the base 306 is slidably connected to the side wall of the slide plate 307. The base 306 is used to push the slide plate 307 to move.

[0029] Both sides of the button 201 are rotatably connected with rotating rods 202 for connecting the button 201 and the slide rod 203. The side of the snap-fastener 205 away from the sewing head body 101 is rotatably connected with a chute 204 for the slide rod 203 to slide. The bottom of the chute 204 is fixedly connected to the upper side of the table board 100. The inner wall of the chute 204 is slidably connected with a slide rod 203. The slide rod 203 drives the linkage rod 206 to move, causing the snap-fastener 205 to rotate on one side of the chute 204. The end of the slide rod 203 near the button 201 is rotatably connected to the end of the rotating rod 202 away from the button 201. The upper side of the slide rod 203 and the side wall of the snap-fastener 205 are jointly rotatably connected with a linkage rod 206.

[0030] A rotating shaft 300 is rotatably connected to the inner wall of the lower end of the first slide rail 200. The rotating shaft 300 is used to drive the belt 303 to rotate. One end of the rotating shaft 300 close to the inner wall of the first slide rail 200 is fixedly connected with a gear 301. The gear 301 is used to drive the rotating shaft 300 to rotate. The lower end of the button 201 is vertically fixedly connected with a rack 302. The tooth grooves of the rack 302 are meshed with the teeth of the gear 301. The rack 302 is used to drive the gear 301 to rotate;

[0031] One end of the rotating shaft 300 close to the motor 104 is rotatably connected with a belt 303. A threaded rod 305 is rotatably connected to the inner wall of the second slide rail 304. The threaded rod 305 is used to drive the base 306 to move. One end of the threaded rod 305 away from the motor 104 is rotatably connected to the inner wall of the belt 303. The belt 303 is used to drive the threaded rod 305 to rotate. The outer wall of the threaded rod 305 is threadedly connected to the inner wall of the base 306. A spring 308 is fixedly connected between the inner wall of the base 306 and one end of the slide plate 307 away from the plug 106. The spring 308 is used for buffering between the slide plate 307 and the base 306 when the slide plate 307 is squeezed by the motor 104.

[0032] The improvement of this embodiment lies in:

[0033] When the staff disassembles the machine head, they only need to press the button 201 to realize the one-key release of the buckle 205 that locks the machine head body 101. At the same time, this operation can also disconnect the connection between the motor 104 and the plug 106, so as to facilitate the smooth removal of the machine head. This not only effectively prevents the problem of damage to the connecting wire 105 at the pedal 102 that may be caused by the staff's negligence of forgetting to unplug the connecting plug 106, but also significantly reduces the use cost and extends the service life of the product.

[0034] Considering the stability of the sewing machine during operation, table legs 103 are fixedly connected to the four corners of the lower side of the table board 100. A pedal 102 is rotatably connected between the opposite sides of the table legs 103. A wire 105 is fixedly connected between the circuit connection port of the pedal 102 and the circuit connection port of the plug 106, so that the sewing machine can maintain stability during operation.

[0035] When the sewing machine head of the utility model, which is convenient for disassembly and assembly, is in specific use, when the staff performs the head disassembly operation, they will apply pressure to the button 201 to make it move downward. This action of the button 201 will cause the displacement of the rotating rod 202, and then push the sliding rod 203 to move under the constraint of the sliding groove 204. As the sliding rod 203 moves, the linkage rod 206 will also be driven, further prompting the buckle 205 to perform a rotational action, thereby releasing the machine head body 101. At the same time, the downward movement of the button 201 will also trigger the rack 302 to move downward. The displacement of the rack 302 will drive the gear 301 to rotate, and then drive the rotating shaft 300 to rotate. The rotation of the rotating shaft 300 will cause the belt 303 to rotate, and the belt 303 will further drive the threaded rod 305 to rotate. The rotational action of the threaded rod 305 will push the base 306 to move under the guidance of the second slide rail 304, and finally make the plug 106 disengage from the motor 104.

[0036] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the utility model, and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection claimed by the utility model is defined by the appended claims and their equivalents.

Claims

1. A lockstitch sewing machine with a sewing machine head that is easy to assemble and disassemble, comprising a table top (100), characterized in that: The upper side of the table top (100) is clamped with a head body (101), and the four corners of the lower side of the head body (101) are clamped with buckles (205). The lower side of the table top (100) is fixedly connected with a first slide rail (200), and the inner wall of the first slide rail (200) is slidably connected with a button (201), and the upper end of the button (201) passes through the table top (100). A motor (104) is installed on the side of the head body (101) away from the button (201), and a plug (106) is plugged into the input end of the motor (104), and a slide plate (307) is slidably connected to the lower side of the plug (106). The upper side of the table top (100) is fixedly connected with a second slide rail (304) close to the motor (104), and the inner wall of the second slide rail (304) is slidably connected with a base (306), and the inner wall of the base (306) is slidably connected to the side wall of the slide plate (307).

2. The lockstitch sewing machine with easily detachable sewing machine head according to claim 1, characterized in that: Both sides of the button (201) are rotatably connected to a rotating rod (202); the buckle (205) is rotatably connected to a sliding groove (204) on the side away from the head body (101); the bottom of the sliding groove (204) is fixedly connected to the upper side of the table top (100); the inner wall of the sliding groove (204) is slidably connected to a sliding rod (203); one end of the sliding rod (203) close to the button (201) is rotatably connected to the end of the rotating rod (202) away from the button (201); the upper side of the sliding rod (203) and the side wall of the buckle (205) are rotatably connected to a linkage rod (206).

3. The lockstitch sewing machine with easily detachable sewing machine head according to claim 1, characterized in that: The inner wall at the lower end of the first slide rail (200) is rotatably connected to a rotating shaft (300), one end of the rotating shaft (300) close to the inner wall of the first slide rail (200) is fixedly connected to a gear (301), and the lower end of the button (201) is vertically fixedly connected to a rack (302), and the tooth grooves of the rack (302) are meshed with the teeth of the gear (301).

4. The lockstitch sewing machine with easily detachable sewing machine head according to claim 3, characterized in that: The end of the rotating shaft (300) close to the motor (104) is rotatably connected to a belt (303), the inner wall of the second slide rail (304) is rotatably connected to a threaded rod (305), the end of the threaded rod (305) away from the motor (104) is rotatably connected to the inner wall of the belt (303), the outer wall of the threaded rod (305) is threadedly connected to the inner wall of the base (306), and the inner wall of the base (306) and the end of the slide plate (307) away from the plug (106) are fixedly connected with a spring (308).

5. The lockstitch sewing machine with easily detachable sewing machine head according to claim 1, characterized in that: The four lower corners of the table top (100) are fixedly connected to table legs (103), and the table legs (103) are rotatably connected to a pedal (102) on one opposite side. The circuit connection port of the pedal (102) and the circuit connection port of the plug (106) are fixedly connected to an electric wire (105).

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