An anti-curling device for a sewing machine

Abstract

The utility model relates to clothing processing equipment technical field discloses a kind of anti-curling device of sewing machine, including table, the upper surface of the table is fixedly connected with long box, the inside of the groove is provided with rotating rod, the upper surface of the table is fixedly connected with motor, the outside of the long box is provided with first cloth rod, the outside of the long box is rotatably connected with second cloth rod.The utility model has the following advantages and effects: cloth movement drives the second cloth rod of lower surface contact to rotate, the first cloth rod and the second cloth rod of rotation form pulling force to the edge of cloth one end that shuttle movement in middle, so that the curling of cloth is pulled by pulling force, the one end of cloth after pulling is transported to sewing machine below and sewed with the movement of cloth feed dog, when sewing the cloth by the above operation, the edge curling of the one end of cloth is smoothed, the effect that the edge anti-curling effect of cloth is good is realized.

Description

Technical Field

[0001] This utility model relates to the field of garment processing equipment technology, and in particular to an anti-rolling device for sewing machines. Background Technology

[0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on a fabric, allowing one or more layers of fabric to interweave or sew together. Sewing machines can sew fabrics such as cotton, linen, silk, wool, and synthetic fibers, as well as products made of leather, plastic, and paper. The stitches produced are neat, beautiful, flat, and strong. Sewing machines are fast and easy to use.

[0003] In the prior art, such as the Chinese patent publication number CN111663253B, a hemming sewing machine for round fabrics includes: a sewing machine body, a fabric edge position adjustment mechanism with a fabric end gripper, a first fabric edge position detector, and a second fabric edge position detector. It also includes a control unit that, based on the detection result of the first fabric edge position detector, drives the fabric edge position adjustment mechanism to move in a specific direction to adjust one end edge of the round fabric to a predetermined position. Based on the detection result of the second fabric edge position detector, while continuing hemming, it moves the fabric guide to a position to the left lateral side of the sewing machine body M. After hemming a predetermined length, the sewing machine is stopped. This allows the hemming start and end points of the round fabric to be aligned in a straight line, and enables proper and aesthetically pleasing hemming throughout the entire circumference of the hem.

[0004] In actual production and use, although the hemming sewing machine for this type of round fabric can sew the fabric, the edges of the fabric may curl due to the fabric tension. This requires workers to frequently smooth the edges of the fabric by hand, making the sewing process troublesome and resulting in poor performance of the device. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide an anti-rolling device for sewing machines, which has a good effect on preventing the edges of fabric from rolling up.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an anti-rolling device for a sewing machine, comprising a table, table legs fixedly connected to the bottom of the table, a sewing machine fixedly connected to the upper surface of the table, a presser foot bar provided on the outside of the sewing machine, a feed dog fixedly connected to the bottom of the presser foot bar, a needle plate fixedly connected to the upper surface of the table, a long box fixedly connected to the upper surface of the table, a groove provided inside the long box, a rotating rod provided inside the groove, a rotating hole provided inside the long box, a motor fixedly connected to the upper surface of the table, the output end of the motor passing through the rotating hole and fixedly connected to one end of the rotating rod, a circular hole provided inside the long box, a first fabric guiding rod provided on the outside of the long box, the first fabric guiding rod passing through the circular hole, a belt provided inside the groove, one end of the belt being drivenly connected to the outer surface of the rotating rod, the other end of the belt being drivenly connected to the first fabric guiding rod, a second fabric guiding rod being rotatably connected to the outside of the long box, and a cover plate provided on the outside of the long box.

[0007] By adopting the above technical solution, the worker starts the motor, and the motor begins to work. The output end of the motor drives the rotating rod to rotate, which in turn drives the belt drive. The belt drive then drives the first fabric guide rod to rotate. When sewing the fabric, the worker alternately inserts the edge of one end of the fabric between the first and second fabric guide rods. The fabric feed dogs drive the movement of the fabric during sewing, causing the fabric to shuttle between the first and second fabric guide rods. At the same time, the rotation of the first fabric guide rod causes one end of the fabric to move... The upper edge of the fabric is subjected to force, which causes the second guide rod, which is in contact with the lower surface, to rotate as the fabric moves. The rotating first and second guide rods exert a pulling force on the edge of one end of the fabric that is moving between them, causing the rolled edge of the fabric to be flattened by the pulling force. The flattened end of the fabric is then conveyed to the bottom of the sewing machine for sewing as the feed dog moves. Through the above operation, the rolled edge of one end of the fabric is flattened when sewing, achieving a good effect of preventing the edge of the fabric from rolling.

[0008] A further feature of this invention is that a friction layer is fixedly connected to the upper surface of the first cloth-straightening rod, and the thickness of the friction layer is four centimeters.

[0009] By adopting the above technical solution, the friction layer increases the friction force generated by the contact between the belt and the upper surface of the first cloth-straightening rod, so that the transmission belt can better drive multiple first cloth-straightening rods to rotate simultaneously.

[0010] A further feature of this invention is that a hinge is provided on the outside of the groove, one end of the hinge is hinged to the cover plate, and the other end of the hinge is hinged to the long box.

[0011] By adopting the above technical solution, workers can close the cover plate to cover the groove using hinges, preventing thread ends generated during sewing from drifting into the groove and getting tangled on the rotating rod and belt, causing blockages.

[0012] A further feature of this invention is that the upper surface of the second cloth-straightening rod is provided with a frosted layer, the thickness of which is three centimeters.

[0013] By adopting the above technical solution, the frosted layer increases the friction between the lower surface of the fabric and the upper surface of the second straightening rod, preventing the fabric from slipping when it moves between the first and second straightening rods.

[0014] A further feature of this invention is that a circular ring is fixedly connected inside the groove, and the rotating rod passes through the inside of the circular ring.

[0015] By adopting the above technical solution, the rotating rod rotates inside the two rings, reducing the polarization of the rotating rod.

[0016] A further feature of this invention is that a disc bearing is rotatably connected inside the groove, and the other end of the rotating rod extends through the interior of the disc bearing.

[0017] By adopting the above technical solution, when the rotating rod is subjected to force and rotates, the other end of the rotating rod rotates inside the disc bearing, so that the rotating rod rotates stably.

[0018] A further feature of this invention is that the cover plate is fixedly connected to the outside with two handles.

[0019] By adopting the above technical solution, workers hold the handles to open and close the cover.

[0020] A further feature of this invention is that a flat cloth clamp is fixedly connected to the outside of the long box, and the number of the flat cloth clamps is two.

[0021] By adopting the above technical solution, the edge of one end of the flattened fabric passes between the two flat fabric clamps and is immediately locked by the sewing machine. The two flat fabric clamps prevent the flattened fabric from curling up again.

[0022] A further feature of this invention is that the needle plate has a needle groove inside, and a thread-holding post is rotatably connected to the upper surface of the sewing machine.

[0023] By adopting the above technical solution, the needle groove facilitates the sewing of the sewing needle, and the thread tie post facilitates the thread routing.

[0024] A further feature of this invention is that the sewing machine is externally fixedly connected to a hook, and a safety goggle is externally attached to the hook.

[0025] By adopting the above technical solution, the hook facilitates the placement of goggles, and workers can wear goggles while sewing to prevent eye injuries caused by broken needles.

[0026] The beneficial effects of this utility model are:

[0027] 1. This utility model, through the arrangement of a table, table legs, sewing machine, presser foot, feed dog, needle plate, long box, groove, rotating rod, rotating hole, motor, round hole, first feed rod, belt, second feed rod, and cover plate, allows the worker to start the motor. The motor's output drives the rotating rod to rotate, which in turn drives the belt drive, which in turn drives the first feed rod to rotate. When the worker sews the fabric, the edge of one end of the fabric is alternately inserted between the first and second feed rods. The feed dog drives the movement of the fabric during sewing, causing the fabric to rotate in the first feed rod. The first and second fabric guides move back and forth between the first and second guides. Simultaneously, the rotating first guide causes force on the upper surface of one edge of the fabric, which in turn causes the lower surface of the second guide to rotate. The rotating first and second guides exert a pulling force on the edge of the fabric moving between them, flattening the rolled edge. The flattened edge is then fed to the bottom of the sewing machine by the feed dog for sewing. Through this process, the rolled edge of the fabric is smoothed during sewing, achieving excellent anti-rolling effect.

[0028] 2. This utility model, through the arrangement of a friction layer, hinge, frosted layer, ring, disc bearing, handle, flat fabric clamp, needle groove, thread tie post, hook, and safety goggles, increases the friction force generated by the contact between the belt and the upper surface of the first fabric guide rod through the friction layer. This allows the transmission belt to better drive multiple first fabric guide rods to rotate simultaneously. The worker closes the cover plate with the hinge to cover the groove, preventing thread ends generated during sewing from drifting into the groove and getting tangled on the rotating rod and belt, causing blockage. The frosted layer increases the friction force generated by the contact between the lower surface of the fabric and the upper surface of the second fabric guide rod, preventing the fabric from slipping through the first fabric guide rod and... When the second fabric guide bar slips while shuttling between the two rings, the rotating rod rotates inside the two rings to reduce the polarization of the rod. When the rod is rotated under force, the other end of the rod rotates inside the disc bearing, making the rod rotate stably. The worker holds the handle to open and close the cover plate. The edge of one end of the flattened fabric passes between the two flat fabric clamps and is immediately overlocked by the sewing machine. The two flat fabric clamps prevent the flattened fabric from curling again. The needle groove facilitates the sewing of the needle, the thread tie post facilitates the work of the sewing thread, and the hook facilitates the placement of safety goggles. Workers wear safety goggles while sewing to prevent eye injury from broken needles. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the motor and rotating hole structure of this utility model;

[0032] Figure 3 This is a schematic diagram of the circular ring and flat cloth clamp structure of this utility model;

[0033] Figure 4 This is a schematic diagram of the first fabric guide rod and belt structure of this utility model.

[0034] In the diagram: 1. Table; 2. Table leg; 3. Sewing machine; 4. Presser foot; 5. Feed dog; 6. Needle plate; 7. Long box; 8. Groove; 9. Rotating rod; 10. Motor; 11. Round hole; 12. First feed rod; 13. Belt; 14. Second feed rod; 15. Cover plate; 16. Friction layer; 17. Hinge; 18. Frosted layer; 19. Ring; 20. Disc bearing; 21. Handle; 22. Flat fabric clamp; 23. Needle groove; 24. Thread tie post; 25. Hook; 26. Goggles; 27. Rotating hole. Detailed Implementation

[0035] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0036] Reference Figure 1-4An anti-rolling device for a sewing machine includes a table 1, table legs 2 fixedly connected to the bottom of the table 1, a sewing machine 3 fixedly connected to the upper surface of the table 1, a presser foot 4 externally mounted on the sewing machine 3, a feed dog 5 fixedly connected to the bottom of the presser foot 4, a needle plate 6 fixedly mounted on the upper surface of the table 1, a long box 7 fixedly mounted on the upper surface of the table 1, a groove 8 inside the long box 7, a rotating rod 9 inside the groove 8, a rotating hole 27 inside the long box 7, a motor 10 fixedly mounted on the upper surface of the table 1, the output end of the motor 10 passing through the rotating hole 27 and fixedly connected to one end of the rotating rod 9, a round hole 11 inside the long box 7, and a first fabric guide rod 12 externally mounted on the long box 7, passing through the round hole 11. Inside the groove 8 of the long box 1, a belt 13 is installed. One end of the belt 13 is connected to the outer surface of the rotating rod 9, and the other end is connected to the first fabric-guiding rod 12. The long box 7 is rotatably connected to the outside of the long box 7, and a cover plate 15 is installed on the outside of the long box 7. When the worker starts the motor 10, the motor 10 starts working. The output end of the motor 10 drives the rotating rod 9 to rotate, which in turn drives the belt 13 to rotate. The belt 13 then drives the first fabric-guiding rod 12 to rotate. When the worker sews the fabric, the edge of one end of the fabric is alternately inserted between the first fabric-guiding rod 12 and the second fabric-guiding rod 14. The fabric is moved by the feed dog 5 during sewing, so that the fabric moves between the first fabric-guiding rod 12 and the second fabric-guiding rod 14. The fabric moves back and forth, and the rotating first guide rod 12 applies force to the upper surface of the edge of one end of the fabric. This causes the second guide rod 14, which is in contact with the lower surface of the fabric, to rotate as the fabric moves. The rotating first guide rod 12 and second guide rod 14 exert a pulling force on the edge of the fabric moving between them, causing the rolled edge of the fabric to be flattened. The flattened edge of the fabric is then conveyed to the sewing machine 3 by the movement of the feed dog 5 for sewing. Through the above operation, the rolled edge of the fabric is flattened during sewing, achieving a good anti-rolling effect on the edge of the fabric. A friction layer 16 with a thickness of four centimeters is fixedly connected to the upper surface of the first guide rod 12. The friction layer 16 increases the thickness of the belt 13. The friction generated by the contact between the upper surface of the first fabric guide rod 12 and the belt of the transmission belt 13 enables the belt to drive the multiple first fabric guide rods 12 to rotate simultaneously more effectively. A hinge 17 is provided on the outside of the groove 8. One end of the hinge 17 is hinged to the cover plate 15, and the other end is hinged to the long box 7. Workers use the hinge 17 to close the cover plate 15, covering the groove 8, to prevent thread ends generated during sewing from drifting into the groove 8 and getting tangled on the rotating rod 9 and belt 13, causing blockages. The upper surface of the second fabric guide rod 14 is provided with a frosted layer 18, which is three centimeters thick. The frosted layer 18 increases the friction generated by the contact between the lower surface of the fabric and the upper surface of the second fabric guide rod 14, preventing the fabric from slipping when moving between the first fabric guide rods 12 and the second fabric guide rod 14.A ring 19 is fixedly connected inside the groove 8. A rotating rod 9 passes through the inside of the ring 19. The rotating rod 9 rotates inside the two rings 19, reducing the polarization of the rotating rod 9. A disc bearing 20 is rotatably connected inside the groove 8. The other end of the rotating rod 9 passes through the inside of the disc bearing 20. When the rotating rod 9 is subjected to force and rotates, the other end of the rotating rod 9 rotates inside the disc bearing 20, making the rotating rod 9 rotate stably. A handle 21 is fixedly connected to the outside of the cover plate 15. There are two handles 21. Workers hold the handles 21 to open and close the cover plate 15. A flat cloth clamp 22 is fixedly connected to the outside of the long box 7. There are two plates 22. After the fabric is flattened, one edge passes between the two flat fabric clamps 22 and is immediately hemmed by the sewing machine 3. The two flat fabric clamps 22 prevent the flattened fabric from curling again. The needle plate 6 has a needle groove 23 inside. A thread guide post 24 is rotatably connected to the upper surface of the sewing machine 3. The needle groove 23 facilitates the sewing of the needle, and the thread guide post 24 facilitates the thread feeding. A hook 25 is fixedly connected to the outside of the sewing machine 3. A safety goggle 26 is attached to the outside of the hook 25. The hook 25 facilitates the placement of the safety goggle 26, allowing workers to wear the safety goggle 26 while sewing to prevent eye injury from broken needles.

[0037] In this invention, the worker starts the motor 10, and the motor 10 begins to work. The output end of the motor 10 drives the rotating rod 9 to rotate, which in turn drives the belt 13 for transmission. The belt 13 then drives the first fabric-rolling rod 12 to rotate. When the worker is sewing the fabric, the edge of one end of the fabric is alternately inserted between the first fabric-rolling rod 12 and the second fabric-rolling rod 14. The fabric feed dog 5 drives the movement of the fabric during sewing, causing the fabric to shuttle between the first fabric-rolling rod 12 and the second fabric-rolling rod 14. At the same time, the rotation of the first fabric-rolling rod 12 causes the edge of one end of the fabric to rotate. The upper surface is subjected to force, which causes the second guide rod 14, which is in contact with the lower surface, to rotate as the fabric moves. The rotating first guide rod 12 and second guide rod 14 exert a pulling force on the edge of one end of the fabric that is moving between them, causing the rolled edge of the fabric to be flattened by the pulling force. The flattened end of the fabric is then conveyed to the sewing machine 3 for sewing as the feed dog 5 moves. Through the above operation, the rolled edge of one end of the fabric is flattened when sewing, achieving a good anti-rolling effect on the edge of the fabric. The friction layer 16 increases the distance between the belt 13 and the first guide rod. The friction generated by the contact of the upper surface of the first guide rod 12 allows the belt of the transmission belt 13 to better drive the multiple first guide rods 12 to rotate simultaneously. The worker closes the cover plate 15 with the hinge 17 to cover the groove 8, preventing thread ends generated during sewing from drifting into the groove 8 and getting tangled on the rotating rod 9 and belt 13, causing blockage. The frosted layer 18 increases the friction generated by the contact between the lower surface of the fabric and the upper surface of the second guide rod 14, preventing the fabric from slipping when moving between the first guide rod 12 and the second guide rod 14. The rotating rod 9 rotates inside the two rings 19, reducing the risk of slippage of the rod 9. When the rotating rod 9 is subjected to force and rotates, the other end of the rotating rod 9 rotates inside the disc bearing 20, so that the rotating rod 9 rotates stably. The worker holds the handle 21 to open and close the cover plate 15. After the edge of one end of the flattened fabric passes between the two flat cloth clamps 22, it is immediately locked by the sewing machine 3. The two flat cloth clamps 22 prevent the flattened fabric from curling again. The needle groove 23 facilitates the sewing of the sewing needle. The thread tie post 24 facilitates the work of the sewing thread. The hook 25 facilitates the placement of the goggles 26. The worker wears the goggles 26 when sewing to prevent the broken needle from causing damage to the eyes.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sewing machine anti-rolling device, comprising a table (1), characterized in that: The table (1) is fixedly connected to the bottom of the table (2), and a sewing machine (3) is fixedly connected to the upper surface of the table (1). A presser foot bar (4) is provided on the outside of the sewing machine (3), and a feed dog (5) is fixedly connected to the bottom of the presser foot bar (4). A needle plate (6) is fixedly connected to the upper surface of the table (1), and a long box (7) is fixedly connected to the upper surface of the table (1). A groove (8) is provided inside the long box (7), and a rotating rod (9) is provided inside the groove (8). A rotating hole (27) is provided inside the long box (7). A motor (10) is fixedly connected to the upper surface of the table (1). The output end of 10) passes through the interior of the rotating hole (27) and is fixedly connected to one end of the rotating rod (9). The interior of the long box (7) is provided with a round hole (11). The exterior of the long box (7) is provided with a first cloth-straightening rod (12). The first cloth-straightening rod (12) passes through the interior of the round hole (11). The interior of the groove (8) is provided with a belt (13). One end of the belt (13) is connected to the outer surface of the rotating rod (9) for transmission. The other end of the belt (13) is connected to the first cloth-straightening rod (12) for transmission. The exterior of the long box (7) is rotatably connected with a second cloth-straightening rod (14). The exterior of the long box (7) is provided with a cover plate (15).

2. The anti-rolling device for a sewing machine according to claim 1, characterized in that: A friction layer (16) is fixedly connected to the upper surface of the first cloth-strapping rod (12), and the thickness of the friction layer (16) is four centimeters.

3. The anti-rolling device for a sewing machine according to claim 1, characterized in that: A hinge (17) is provided on the outside of the groove (8). One end of the hinge (17) is hinged to the cover plate (15), and the other end of the hinge (17) is hinged to the long box (7).

4. The anti-rolling device for a sewing machine according to claim 1, characterized in that: The upper surface of the second cloth-straightening rod (14) is provided with a frosted layer (18), the thickness of which is three centimeters.

5. The anti-rolling device for a sewing machine according to claim 1, characterized in that: A ring (19) is fixedly connected inside the groove (8), and the rotating rod (9) passes through the inside of the ring (19).

6. The anti-rolling device for a sewing machine according to claim 1, characterized in that: The groove (8) is rotatably connected to a disc bearing (20), and the other end of the rotating rod (9) extends into the interior of the disc bearing (20).

7. The anti-rolling device for a sewing machine according to claim 1, characterized in that: The cover plate (15) is externally fixedly connected with a handle (21), and there are two handles (21).

8. The anti-rolling device for a sewing machine according to claim 1, characterized in that: The long box (7) is fixedly connected to a flat cloth clamp (22) on the outside, and there are two flat cloth clamps (22).

9. The anti-rolling device for a sewing machine according to claim 1, characterized in that: The needle plate (6) has a needle groove (23) inside, and the sewing machine (3) has a thread tie post (24) rotatably connected to the upper surface.

10. The anti-rolling device for a sewing machine according to claim 1, characterized in that: The sewing machine (3) is externally fixedly connected to a hook (25), and a goggles (26) are externally attached to the hook (25).

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