Sewing machine with automatic traction structure

Abstract

The utility model belongs to the technical field of sewing machines, in particular to a sewing machine with an automatic traction structure, which comprises a sewing platform and a placement arm, the placement arm is mounted on the upper side of the sewing platform, a sewing needle seat and a presser foot component are sequentially mounted at one end of the placement arm, and the inner side of the sewing platform is movably connected with a first compression roller through a bearing. According to the sewing machine with the automatic traction structure, a driving motor is started, a first pressing roller and a second pressing roller automatically drag cloth for traction, meanwhile, a synchronous belt conveys the cloth to move, the sewn cloth extends, a worker can conveniently check the sewing line of the cloth, the situation that the hand of the sewing machine is punctured is not prone to occurring, and the sewing efficiency is improved. The cloth is moved to the lower side of the magnetic plate, the synchronous belt and the magnetic plate drive the cloth to move, the cloth can be prevented from being wrinkled or stacked on the synchronous belt, and a worker can stably check the sewing line of the sewing machine.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machines, in particular to a sewing machine with an automatic traction structure. Background Art

[0002] A sewing machine is a device used to sew and repair cloth. It connects thread to cloth to form various sewing styles and structures. It can sew different types of cloth together to form various clothing structures, such as underwear, etc. When clothes are damaged or need to be resized, they can be repaired or modified using a sewing machine to extend the service life of the clothes and make them more suitable for personal needs.

[0003] When the staff uses the sewing machine to sew underwear, the thread is passed through the spool frame and the thread clamp of the sewing needle seat, and then the thread is guided to the needle of the sewing needle seat through the thread guide, and the cloth is placed on the upper side of the sewing platform so that the position where the cloth needs to be sewn is between the needle and the needle plate of the sewing needle seat. During the sewing process, the staff needs to gently guide the cloth with their hands to keep the stitches straight and stable. Due to the limited length of the arm, after guiding one end, the staff needs to return to the position where the cloth is close to the needle of the sewing needle seat to continue guiding. During the sewing process, the staff needs to repeatedly guide the cloth, and the hands repeatedly approach the needle tip and needle plate of the sewing machine, which makes it easy for the needle to pierce the hands and cause accidents. Therefore, we propose a sewing machine with an automatic traction structure. Utility Model Content

[0004] The utility model aims to provide a sewing machine with an automatic traction structure to solve the problem in the background art that during the sewing process, the worker needs to repeatedly guide the cloth and repeatedly approach the needle tip and needle plate of the sewing machine with his hands, which makes it easy for the needle to pierce the hand and cause an accident.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sewing machine with an automatic traction structure, comprising a sewing platform and a placement arm, a placement arm is installed on the upper side of the sewing platform, and a sewing needle seat and a presser foot assembly are installed in sequence at one end of the placement arm, the inner side of the sewing platform is movably connected to a first pressure roller through a bearing, and a second pressure roller is arranged above the first pressure roller, the second pressure roller is movably connected to the placement arm through a bearing plate, the outer sides of the first pressure roller and the outer sides of the second pressure roller are respectively bonded with connecting layers, one side of the first pressure roller is fixed to a first bevel gear through a center rod, and the first bevel gear is fixed to the output shaft of a driving motor.

[0006] Preferably, a second bevel gear is butt-jointed to the outer side of the first bevel gear, and the second bevel gear is fixed to the third bevel gear via a center rod.

[0007] Preferably, the third bevel gear is connected to the fourth bevel gear, and the first bevel gear, the second bevel gear, the third bevel gear and the fourth bevel gear are movably connected to the sewing platform via bearings respectively.

[0008] Preferably, one side of the fourth bevel gear is fixed to the first synchronous wheel rod through a center rod, and a synchronous belt is butted against the outer side of the first synchronous wheel rod, and one side of the synchronous belt is butted against the second synchronous wheel rod.

[0009] Preferably, the first synchronous wheel rod and the second synchronous wheel rod are movably connected to the sewing platform via bearings respectively.

[0010] Preferably, a rubber magnetic layer is bonded to the outer side of the synchronous belt, a magnetic plate is arranged on the upper side of the rubber magnetic layer, and a connecting rod is fixed on the upper side of the magnetic plate, and one end of the connecting rod movably passes through the interior of the connecting plate.

[0011] Preferably, a first spring is sleeved on the upper end of the connecting rod, and two ends of the first spring are respectively connected to the connecting rod and the connecting plate, and a sliding rod is fixed to one side of the connecting rod.

[0012] Preferably, one end of the sliding rod is sleeved with the second spring, and the end of the sliding rod away from the magnetic plate slides through the interior of the fixed plate, and the two ends of the second spring are respectively connected to the connecting plate and the fixed plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the sewing machine with an automatic traction structure starts the driving motor, so that the first pressure roller and the second pressure roller automatically pull the cloth for traction, and at the same time the synchronous belt transports the cloth to move, so that the sewn cloth is stretched out, which is convenient for the staff to check the sewing line of the cloth, and the sewing machine is not easy to stab the hands. The cloth is moved to the lower side of the magnetic plate, and the synchronous belt and the magnetic plate drive the cloth to move, which can prevent the cloth from wrinkling or piling up on the synchronous belt, so that the staff can stably check the sewing line of the sewing machine.

[0014] 1. The sewing machine with automatic traction structure, when the staff uses the sewing machine to sew underwear, the thread is passed through the thread reel frame and thread clamp of the sewing needle seat, and then the thread is guided to the needle of the sewing needle seat through the thread guide, and the cloth is placed on the upper side of the sewing platform, so that the position of the cloth to be sewn is located between the needle and the needle plate of the sewing needle seat. During the sewing process, the presser foot assembly will press down the position of the cloth to be sewn, and when the position of the cloth to be sewn moves out of between the needle and the needle plate, the drive motor is started, and when the cloth is close to the first pressing roller and the second pressing roller, the first pressing roller and the second pressing roller are squeezed with the cloth, so that the first pressing roller and the second pressing roller automatically pull the cloth for traction, and after the cloth moves out of the first pressing roller and the second pressing roller, it reaches the upper side of the synchronous belt, so that the synchronous belt conveys the cloth to move, so that the sewn cloth is extended, which is convenient for the staff to check the sewing line of the cloth, so that the staff does not need to manually guide the cloth repeatedly, and the sewing machine is not easy to stab the hand;

[0015] 2. The sewing machine with automatic traction structure, when the sewing machine sews fabric and the fabric is conveyed to the upper side of the synchronous belt, pull up the connecting rod to move the fabric to the lower side of the magnetic plate, press the connecting rod to make the magnetic plate and the rubber magnetic layer fit together, so that the synchronous belt and the magnetic plate squeeze and limit the fabric, so that the synchronous belt and the magnetic plate drive the fabric to move, which can prevent the fabric from wrinkling or piling up on the synchronous belt, so that the staff can stably check the sewing line of the sewing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the left-side cross-sectional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the left-side cross-sectional structure of the first pressure roller and the synchronous belt of the utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the first pressure roller and the synchronous belt of the utility model from top view;

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the first pressure roller and the synchronous belt of the utility model.

[0021] In the figure: 1, sewing platform; 101, placement arm; 102, sewing needle seat; 103, presser foot assembly; 2, first pressure roller; 201, second pressure roller; 202, first bevel gear; 203, drive motor; 204, second bevel gear; 205, third bevel gear; 206, fourth bevel gear; 207, first synchronous wheel rod; 208, synchronous belt; 209, second synchronous wheel rod; 210, connecting layer; 3, rubber magnetic layer; 301, magnetic plate; 302, connecting rod; 303, connecting plate; 304, first spring; 305, sliding rod; 306, second spring; 307, fixing plate. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-Figure 5The utility model provides a technical solution: a sewing machine with an automatic traction structure, comprising a sewing platform 1 and a placement arm 101, the placement arm 101 is installed on the upper side of the sewing platform 1, and a sewing needle seat 102 and a presser foot assembly 103 are installed in sequence at one end of the placement arm 101, the inner side of the sewing platform 1 is movably connected with a first pressing roller 2 through a bearing, and a second pressing roller 201 is arranged above the first pressing roller 2, the second pressing roller 201 is movably connected with the placement arm 101 through a bearing plate, the outer side of the first pressing roller 2 and the outer side of the second pressing roller 201 are respectively bonded with a connecting layer 210, one side of the first pressing roller 2 is fixed to a first bevel gear 202 through a center rod, and the first bevel gear 202 is fixed to the output shaft of a driving motor 203, the outer side of the first bevel gear 202 is butt-jointed with a second bevel gear 204, and the second bevel gear 204 is fixed to a third bevel gear 205 through a center rod, and the third bevel gear 20 5 is connected with the fourth bevel gear 206, the first bevel gear 202, the second bevel gear 204, the third bevel gear 205, and the fourth bevel gear 206 are movably connected with the sewing platform 1 through bearings, one side of the fourth bevel gear 206 is fixed with the first synchronous wheel rod 207 through a center rod, and the outer side of the first synchronous wheel rod 207 is connected with a synchronous belt 208, and one side of the synchronous belt 208 is connected with the second synchronous wheel rod 209, the first synchronous wheel rod 207 and the second synchronous wheel rod 209 are movably connected with the sewing platform 1 through bearings, the connecting layer 210 is made of rubber material, and the connecting layer 210 of the first pressing roller 2 is squeezed with the connecting layer 210 of the second pressing roller 201, the first bevel gear 202 is meshed with the second bevel gear 204, the third bevel gear 205 is meshed with the fourth bevel gear 206, and the first synchronous wheel rod 207 and the second synchronous wheel rod 209 are meshed with the synchronous belt 208.

[0024] In specific implementation, according to Figure 1-Figure 5When the staff uses the sewing machine to sew underwear, the thread is passed through the thread reel frame and the thread clamp of the sewing needle seat 102, and then the thread is guided to the needle of the sewing needle seat 102 through the thread guide, and the cloth is placed on the upper side of the sewing platform 1, so that the position of the cloth to be sewn is located between the needle and the needle plate of the sewing needle seat 102. During the sewing process, the presser foot assembly 103 will press down the position of the cloth to be sewn. When the position of the cloth to be sewn moves out of between the needle and the needle plate, the drive motor 203 is started, so that the output shaft of the drive motor 203 drives the first bevel gear 20 2 rotates, so that the first bevel gear 202 drives the first pressing roller 2 to rotate, and the connecting layer 210 is made of rubber material with a certain deformation ability, and the connecting layer 210 of the first pressing roller 2 is squeezed with the connecting layer 210 of the second pressing roller 201, so that the first pressing roller 2 drives the second pressing roller 201 to rotate, and at this time, the first pressing roller 2 and the second pressing roller 201 rotate in opposite directions. When the cloth is close to the first pressing roller 2 and the second pressing roller 201, the first pressing roller 2 and the second pressing roller 201 are squeezed with the cloth, so that the first pressing roller 2 and the second pressing roller 20 1 automatically pulls the cloth for traction, so that the staff does not need to manually guide the cloth, and after the cloth moves out of the first pressing roller 2 and the second pressing roller 201 to the upper side of the synchronous belt 208, the first bevel gear 202 is meshed with the second bevel gear 204, so that the second bevel gear 204 rotates with the first bevel gear 202, so that the second bevel gear 204 drives the third bevel gear 205 to rotate, and then the third bevel gear 205 is meshed with the fourth bevel gear 206, so that the third bevel gear 205 drives the fourth bevel gear 206 to rotate. The fourth bevel gear 206 drives the first synchronous wheel rod 207 to rotate, and the first synchronous wheel rod 207 and the second synchronous wheel rod 209 are meshed and connected with the synchronous belt 208, so that the synchronous belt 208 rotates and moves, and the moving direction of the synchronous belt 208 is consistent with the direction in which the first pressure roller 2 and the second pressure roller 201 pull the cloth, so that the synchronous belt 208 transports the cloth to move, and the sewn cloth is extended, which is convenient for the staff to check the sewing line of the cloth, so that the staff does not need to repeatedly manually guide the cloth, and the sewing machine is not easy to stab the hands.

[0025] See also Figure 3 and Figure 5A rubber magnetic layer 3 is bonded to the outer side of the synchronous belt 208, and a magnetic plate 301 is arranged on the upper side of the rubber magnetic layer 3, and a connecting rod 302 is fixed on the upper side of the magnetic plate 301, one end of the connecting rod 302 movably passes through the interior of the connecting plate 303, a first spring 304 is sleeved on the upper end of the connecting rod 302, and the two ends of the first spring 304 are respectively connected to the connecting rod 302 and the connecting plate 303, a sliding rod 305 is fixed on one side of the connecting rod 302, one end of the sliding rod 305 is sleeved on the second spring 306, and the end of the sliding rod 305 away from the magnetic plate 301 slides through the interior of the fixed plate 307, the two ends of the second spring 306 are respectively connected to the connecting plate 303 and the fixed plate 307, and the rubber magnetic layer 3 is magnetically attracted to the magnetic plate 301.

[0026] In specific implementation, according to Figure 3 and Figure 5 When the sewing machine sews the fabric, the fabric is transported to the upper side of the synchronous belt 208, the connecting rod 302 is pulled up to separate the magnetic plate 301 from the synchronous belt 208. At this time, the first spring 304 contracts to suspend the connecting rod 302, and then the fabric is moved to the lower side of the magnetic plate 301, and the connecting rod 302 is pressed to make the magnetic plate 301 and the rubber magnetic layer 3 fit together. The rubber magnetic layer 3 and the magnetic plate 301 are magnetically attracted, so that the synchronous belt 208 and the magnetic plate 301 squeeze and limit the fabric, and The rubber magnetic layer 3 has a certain deformation ability and does not affect the rotational movement of the synchronous belt 208, so that the synchronous belt 208 and the magnetic plate 301 drive the cloth to move. At the same time, the slide bar 305 slides along the inner side of the fixed plate 307. When the magnetic plate 301 is separated from the synchronous belt 208, the slide bar 305 drives the magnetic plate 301 to return to its original position under the action of the second spring 306, which can prevent the cloth from wrinkling or piling up on the synchronous belt 208, so that the staff can stably view the sewing line of the sewing machine.

[0027] In summary, the thread is passed through the thread reel frame and thread clamp of the sewing needle seat 102, and then the thread is guided to the needle of the sewing needle seat 102 through the thread guide, and the cloth is placed on the upper side of the sewing platform 1, so that the position where the cloth needs to be sewn is located between the needle and the needle plate of the sewing needle seat 102. When the position where the cloth needs to be sewn moves out of the needle and the needle plate, the drive motor 203 is started, so that the first pressing roller 2 and the second pressing roller 201 automatically pull the cloth for traction, and after the cloth moves out of the first pressing roller 2 and the second pressing roller 201, it is as far as the synchronous belt 2 08, so that the synchronous belt 208 conveys the cloth to move, and the sewn cloth is stretched out, which is convenient for the staff to check the sewing line of the cloth, and the sewing machine is not easy to stab the hands. The cloth is moved to the lower side of the magnetic plate 301, and the synchronous belt 208 and the magnetic plate 301 drive the cloth to move, which can prevent the cloth from wrinkling or piling up on the synchronous belt 208, so that the staff can stably check the sewing line of the sewing machine. The contents not described in detail in this description belong to the prior art known to professional and technical personnel in this field.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sewing machine with an automatic traction structure, comprising a sewing platform (1) and a placement arm (101), characterized in that: A placement arm (101) is installed on the upper side of the sewing platform (1), and a sewing needle seat (102) and a presser foot assembly (103) are installed in sequence on one end of the placement arm (101); the inner side of the sewing platform (1) is movably connected to the first pressure roller (2) via a bearing, and a second pressure roller (201) is arranged above the first pressure roller (2); the second pressure roller (201) is movably connected to the placement arm (101) via a bearing plate; the outer side of the first pressure roller (2) and the outer side of the second pressure roller (201) are respectively bonded with a connecting layer (210); one side of the first pressure roller (2) is fixed to the first bevel gear (202) via a center rod, and the first bevel gear (202) is fixed to the output shaft of the driving motor (203).

2. A sewing machine with an automatic traction structure according to claim 1, characterized in that: The outer side of the first bevel gear (202) is butt-jointed with a second bevel gear (204), and the second bevel gear (204) is fixed to a third bevel gear (205) via a center rod.

3. A sewing machine with an automatic traction structure according to claim 2, characterized in that: The third bevel gear (205) is connected to the fourth bevel gear (206), and the first bevel gear (202), the second bevel gear (204), the third bevel gear (205), and the fourth bevel gear (206) are movably connected to the sewing platform (1) via bearings.

4. A sewing machine with an automatic traction structure according to claim 3, characterized in that: One side of the fourth bevel gear (206) is fixed to the first synchronous wheel rod (207) via a center rod, and a synchronous belt (208) is butt-jointed on the outer side of the first synchronous wheel rod (207), and one side of the synchronous belt (208) is butt-jointed with a second synchronous wheel rod (209).

5. A sewing machine with an automatic traction structure according to claim 4, characterized in that: The first synchronous wheel rod (207) and the second synchronous wheel rod (209) are movably connected to the sewing platform (1) via bearings respectively.

6. A sewing machine with an automatic traction structure according to claim 4, characterized in that: A rubber magnetic layer (3) is bonded to the outer side of the synchronous belt (208), a magnetic plate (301) is arranged on the upper side of the rubber magnetic layer (3), and a connecting rod (302) is fixed on the upper side of the magnetic plate (301), and one end of the connecting rod (302) movably passes through the interior of the connecting plate (303).

7. A sewing machine with an automatic traction structure according to claim 6, characterized in that: The upper end of the connecting rod (302) is sleeved with a first spring (304), and the two ends of the first spring (304) are respectively connected to the connecting rod (302) and the connecting plate (303), and a sliding rod (305) is fixed to one side of the connecting rod (302).

8. The sewing machine with automatic traction structure according to claim 7, characterized in that: One end of the slide bar (305) is sleeved with the second spring (306), and the end of the slide bar (305) away from the magnetic plate (301) slides through the interior of the fixed plate (307), and the two ends of the second spring (306) are respectively connected to the connecting plate (303) and the fixed plate (307).

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