Automatic edge folding mechanism used in cooperation with sewing machine

Abstract

The invention relates to the technical field of sewing machines, in particular to an automatic edge folding mechanism matched with a sewing machine for use, which comprises a sewing machine body, two first bases are fixedly mounted on the surface of the sewing machine body, firstly, the first bases are mounted on the surface of the sewing machine body, and then two inclined pressing plates are moved according to the sizes of the inclined pressing plates; during sewing, the inclined pressing plate slides to a proper position along the second sliding rod, then the front end of the inclined pressing plate is moved upwards, cloth needing to be sewn is placed below the inclined pressing plate, then the inclined pressing plate is loosened, the front end of the inclined pressing plate can abut against the cloth, and sewing is completed. When a first sliding sleeve drives an inclined pressing plate to move forwards through cooperation of a connecting rod, a connecting plate, a concave supporting plate and a second sliding rod, the cloth can be driven to move forwards for sewing, the cloth cannot be driven to move backwards when the first sliding sleeve moves backwards, then the inclined pressing plate drives the cloth to move forwards again for sewing, then the edge folding sewing work is completed, the automation degree is improved, and the production efficiency is improved. And the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of sewing machines, in particular to an automatic folding mechanism used with a sewing machine. BACKGROUND

[0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on a fabric, interlacing or joining two or more layers of fabric. It can sew fabrics made of cotton, linen, silk, wool, synthetic fibers, and other materials, as well as leather, plastic, and paper products. The stitches are neat, beautiful, flat, and firm, and the sewing speed is fast and easy to use. It has derived artistic forms such as hand embroidery, computer embroidery, and embroidery, and is commonly used in the field of textile processing, such as clothing, home textiles, and industrial textiles (such as ton bags and canvas products).

[0003] In the field of textile processing, such as clothing, home textiles, and industrial textiles (such as ton bags and canvas products), folding and sewing is one of the core processes. The purpose is to fold and sew the edges of the fabric to enhance the wear resistance of the product edges, prevent the fabric from scattering, and improve the appearance of the product. However, the folding of the fabric usually requires manual work, which is low in efficiency. SUMMARY

[0004] The present application provides an automatic folding mechanism used with a sewing machine to solve the problem of low efficiency caused by manual folding of the existing sewing machine.

[0005] The present application provides an automatic folding mechanism used with a sewing machine, comprising a sewing machine body, two first bases are fixedly installed on the surface of the sewing machine body, a first sliding rod is fixedly installed on the surface of the first base, a first sliding sleeve is slidably connected to the side wall of the first sliding rod, a connecting rod is fixedly installed on the side wall of the first sliding sleeve, a connecting plate is fixedly installed on the side wall of the connecting rod, a concave support plate is fixedly installed on the bottom surface of the connecting plate, a second sliding rod is fixedly installed on the inner wall of the concave support plate, two inclined pressing plates are slidably installed on the side wall of the second sliding rod, a spring mechanism is provided above the inclined pressing plates, and the spring mechanism is used to press the position of the front end of the inclined pressing plate, a power rod is fixedly installed on the side wall of the first base, a driving device is provided on one side of the power rod, and the driving device provides power for the movement of the first sliding sleeve.

[0006] Firstly, the first base is installed on the surface of the sewing machine body, then the two inclined pressing plates are moved according to the size of the inclined pressing plate, the inclined pressing plate is slid along the second sliding rod to the appropriate position, the front end of the inclined pressing plate is moved upward, the cloth to be sewn is placed below the inclined pressing plate, then the inclined pressing plate is loosened, the front end of the inclined pressing plate abuts against the cloth, when the first sliding sleeve drives the inclined pressing plate to move forward through the cooperation of the connecting rod, the connecting plate, the concave supporting plate and the second sliding rod, the cloth is moved forward for sewing, and the first sliding sleeve does not drive the cloth to move backward, then the inclined pressing plate drives the cloth to move forward for sewing again, thereby the hemming sewing work is completed, the automation degree is improved, and the work efficiency is improved.

[0007] Firstly, the U-shaped groove of the U-shaped plate is slidably connected with the threaded connecting sleeve, then the fixing bolt is threadedly connected with the threaded connecting sleeve, thereby the fixing bolt fixes the U-shaped plate through the fixing plate, and the U-shaped plate is fixed on the output end of the servo motor, when sewing work is needed, the servo motor can be started, the servo motor drives the U-shaped plate to rotate, the U-shaped plate drives the power plate to move forward and backward through the rotating shaft, thereby the power plate drives the power rod to move forward and backward, and the power rod drives the first sliding sleeve to move forward and backward along the first sliding rod, and the first sliding sleeve drives the inclined pressing plate to move forward and backward through the cooperation of the connecting rod, the connecting plate, the concave supporting plate and the second sliding rod, the inclined pressing plate completes the hemming sewing work of the cloth, the workers can conveniently perform batch hemming work of the cloth, the work pressure is reduced, and the work efficiency is improved.

[0008] When the cloth needs to be placed, the T-shaped sliding rod can be moved upward, the T-shaped sliding rod slides along the moving sliding groove, thereby the T-shaped sliding rod drives the inclined pressing plate to move upward by extruding the pressing spring, after the cloth is placed, the T-shaped sliding rod can be loosened, at this time, the pressing spring pushes the top end of the inclined pressing plate to abut against the surface of the cloth below the inclined pressing plate, the cloth is conveniently pressed by the inclined pressing plate, the force of the cloth pressed by the inclined pressing plate is improved, and the stability of the device is improved.

[0009] Preferably, the driving device comprises a power plate rotatably mounted on the side wall of the power rod, one end of the power plate is rotatably connected with a rotating shaft, the side wall of the rotating shaft is rotatably connected with a U-shaped plate, one side of the U-shaped plate is provided with a servo motor, the servo motor is fixedly mounted on the surface of the sewing machine body, and the output end of the servo motor is fixedly connected with a threaded connecting sleeve, the side wall of the U-shaped plate is provided with a U-shaped groove, the inner wall of the U-shaped groove is slidably connected with the side wall of the threaded connecting sleeve, the inside of the U-shaped groove is threadedly connected with a fixing bolt, the side wall of the fixing bolt is slidably connected with a fixing plate, and the side wall of the fixing plate is abutted with the side wall of the U-shaped plate; first, the U-shaped groove of the U-shaped plate is slidably connected with the threaded connecting sleeve, then the fixing bolt is threadedly connected with the threaded connecting sleeve, then the fixing bolt fixes the U-shaped plate through the fixing plate, and then the U-shaped plate is fixed on the output end of the servo motor; when sewing work is needed, the servo motor can be started, the servo motor drives the U-shaped plate to rotate, the U-shaped plate drives the power plate to move back and forth through the rotating shaft, the power plate drives the power rod to move back and forth, the power rod drives the first sliding sleeve to move back and forth along the first sliding rod, and the first sliding sleeve drives the inclined pressing plate to move back and forth through the cooperation of the connecting rod, the connecting plate, the concave supporting plate and the second sliding rod; the inclined pressing plate can complete the edge sewing work of the cloth, which is convenient for workers to carry out batch edge work of the cloth, reduces the work pressure and improves the work efficiency.

[0010] Preferably, the elastic mechanism comprises a moving sliding groove formed in the surface of the inclined pressing plate, and a T-shaped sliding rod slidably connected with the inner wall of the moving sliding groove; the bottom surface of the concave supporting plate is provided with a T-shaped sliding groove, and the side wall of the T-shaped sliding rod is sleeved with a pressing spring; when the cloth needs to be placed, the T-shaped sliding rod can be moved upwards, the T-shaped sliding rod slides along the moving sliding groove, the T-shaped sliding rod drives the inclined pressing plate to move upwards to extrude the pressing spring, after the cloth is placed, the T-shaped sliding rod can be released, at this time the pressing spring pushes the top end of the inclined pressing plate to abut against the surface of the cloth below the inclined pressing plate, which is convenient for the inclined pressing plate to press the cloth, improves the pressing force of the inclined pressing plate on the cloth, and improves the stability of the device.

[0011] Preferably, the top end and the bottom end of the pressing spring are fixedly connected with auxiliary gaskets, and the auxiliary gaskets are slidably mounted on the side wall of the T-shaped sliding rod; the auxiliary gaskets provided at the top end and the bottom end of the pressing spring can prevent the pressing spring from excessively rubbing against the bottom surface of the concave supporting plate when the inclined pressing plate is moved, reduce the friction force, facilitate flexible movement of the position of the inclined pressing plate, improve the operation fluency, and reduce the operation difficulty.

[0012] Preferably, one end of the inclined pressing plate is provided with multiple slots; by providing multiple slots, the slots can provide roughness to the front end of the inclined pressing plate, improve friction, and enable the inclined pressing plate to better push the fabric below the inclined pressing plate forward at the same time as the inclined pressing plate.

[0013] Preferably, a roller rod is fixedly installed at the bottom end of the inclined pressing plate, and a movable roller is rotatably connected to the side wall of the roller rod; by setting the cooperation between the roller rod and the movable roller, the movable roller will roll along the surface of the fabric when the inclined pressing plate moves backward, avoiding excessive pulling of the fabric when the inclined pressing plate moves backward, which would cause the fabric to break, thus improving the safety of the inclined pressing plate when it moves and improving the safety of operation.

[0014] Preferably, a support plate is slidably connected to the side wall of the T-shaped slide rod, and a lifting rod is rotatably installed inside the support plate. A limiting slide plate is fixedly installed at the bottom end of the lifting rod, and the limiting slide plate is slidably installed inside the T-shaped slide groove. When it is necessary to place the fabric under the inclined pressing plate, the lifting rod can be moved upward. When the lifting rod moves the limiting slide plate upward and away from the T-shaped slide groove, the lifting rod will move the two T-shaped slide rods upward through the support plate. Then, the two T-shaped slide rods can move the front end of the inclined pressing plate away from the table of the sewing machine body. After that, the lifting rod can be rotated so that the rotation direction of the limiting slide plate at the bottom of the lifting rod can be placed on the surface of the concave support plate. At this time, the support plate can support the two T-shaped slide rods, which makes it convenient to place the fabric under the inclined pressing plate, reducing the difficulty of operation and assisting in the placement of the fabric.

[0015] Preferably, an auxiliary cone is fixedly installed at the top of both the lifting rod and the T-shaped slide bar; by setting the auxiliary cone, the auxiliary cone can assist the operator in pulling the T-shaped slide bar and the lifting rod, reducing the difficulty of operation, facilitating the lifting of the tilting pressing plate, and improving the ease of operation.

[0016] Preferably, a second base is fixedly installed on the surface of the sewing machine body, and a third slide rod is fixedly installed on the surface of the second base. A second sliding sleeve is fixedly installed on the bottom surface of the connecting rod, and the second sliding sleeve is slidably installed on the side wall of the third slide rod. By setting the cooperation of the second base, the third slide rod and the second sliding sleeve, one end of the connecting rod can be supported, so that the connecting rod can move back and forth smoothly, reducing the possibility of vibration of the connecting rod, improving the stability of operation, and facilitating the hemming of fabric.

[0017] Beneficial effects

[0018] 1. First, install the first base on the surface of the sewing machine body. Then, move the two inclined pressing plates according to their size. Slide the inclined pressing plates along the second slide bar to the appropriate position, then move the front end of the inclined pressing plates upward. Place the fabric to be sewn under the inclined pressing plates, then release the inclined pressing plates. The front end of the inclined pressing plates will abut against the fabric. When the first sliding sleeve moves the inclined pressing plates forward through the cooperation of the connecting rod, connecting plate, concave support plate, and second slide bar, it will move the fabric forward for sewing. When the first sliding sleeve moves backward, it will not move the fabric backward. Then, the inclined pressing plates will move the fabric forward again for sewing, thus completing the hem sewing work, improving the degree of automation, and thus improving work efficiency.

[0019] 2. First, the U-shaped groove of the U-shaped plate is slidably connected to the threaded connecting sleeve. Then, the fixing bolt is threadedly connected to the threaded connecting sleeve. The fixing bolt then fixes the U-shaped plate through the fixing plate, thus fixing the U-shaped plate to the output end of the servo motor. When sewing work is required, the servo motor can be started. The servo motor will drive the U-shaped plate to rotate, and the U-shaped plate will drive the power plate to move back and forth through the rotating shaft. In turn, the power plate will drive the power rod to move back and forth, and then the power rod will drive the first sliding sleeve to move back and forth along the first sliding rod. The first sliding sleeve, through the cooperation of the connecting rod, connecting plate, concave support plate, and second sliding rod, drives the inclined pressing plate to move back and forth. The inclined pressing plate will complete the hemming and sewing work of the fabric, which is convenient for workers to perform batch hemming work of fabric, reduce work pressure, and improve work efficiency.

[0020] 3. When it is time to place the fabric, the T-shaped slide bar can be moved upward. The T-shaped slide bar will slide along the moving groove, and then the T-shaped slide bar will drive the inclined pressing plate to squeeze the pressing spring upward. After the fabric is placed, the T-shaped slide bar can be released. At this time, the pressing spring will push the top of the inclined pressing plate to abut against the surface of the fabric below the inclined pressing plate, which makes it easier for the inclined pressing plate to press the fabric, increases the pressure of the inclined pressing plate on the fabric, and thus improves the stability of the device operation.

[0021] The above description is merely an overview of the technical solutions of the embodiments of the present invention. In order to better understand the technical means of the embodiments of the present invention and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side view of the structure of the present invention. Figure One ; Figure 3 for Figure 2 Enlarged structural diagram of section A in the middle; Figure 4 This is a side view of the structure of the present invention. Figure Two ; Figure 5 for Figure 4 Enlarged structural diagram of section B in the middle; Figure 6 This is a side view of the structure of the present invention. Figure Three ; Figure 7 for Figure 6 Enlarged structural diagram of section C; Figure 8 This is a side view of the structure of the present invention. Figure Four ; Figure 9 for Figure 8 Enlarged structural diagram of section D in the middle.

[0024] Explanation of reference numerals in the attached figures: 1. Sewing machine body; 2. First base; 3. First slide bar; 4. First sliding sleeve; 5. Connecting rod; 6. Connecting plate; 7. Concave support plate; 8. Second slide bar; 9. Inclined pressing plate; 10. Power rod; 11. Power plate; 12. Rotating shaft; 13. U-shaped plate; 14. Servo motor; 15. Threaded connecting sleeve; 16. U-shaped groove; 17. Fixing bolt; 18. Fixing plate; 19. Moving slide; 20. T-shaped slide bar; 21. T-shaped slide; 22. Pressing spring; 23. Support plate; 24. Lifting rod; 25. Limiting slide plate; 26. Groove; 27. Auxiliary shim; 28. Roller rod; 29. ​​Moving roller; 30. Second base; 31. Third slide bar; 32. Second sliding sleeve; 33. Auxiliary cone. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the terms “comprising” and “having”, and any variations thereof, in the description, claims and drawings of this invention are intended to cover non-exclusive inclusion.

[0027] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0028] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the present invention. For example, in the description of the present invention, terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" of a mechanical structure can refer to a physical connection. A physical connection can be a fixed connection, such as a connection secured by fasteners, such as screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0031] This invention provides, for example Figures 1-9An automatic hemming mechanism for use with a sewing machine is shown, comprising a sewing machine body 1. Two first bases 2 are fixedly mounted on the surface of the sewing machine body 1, and a first slide rod 3 is fixedly mounted on the surface of the first base 2. A first sliding sleeve 4 is slidably connected to the side wall of the first slide rod 3, and a connecting rod 5 is fixedly mounted on the side wall of the first sliding sleeve 4. A connecting plate 6 is fixedly mounted on the side wall of the connecting rod 5, and a concave support plate 7 is fixedly mounted on the bottom surface of the connecting plate 6. A second slide rod 8 is fixedly mounted on the inner wall of the concave support plate 7, and two inclined pressing plates 9 are slidably mounted on the side wall of the second slide rod 8. An elastic mechanism is provided above the inclined pressing plates 9, and the elastic mechanism is used to press and fix the front end of the inclined pressing plates 9. A power rod 10 is fixedly mounted on the side wall of the first base 2, and a driving device is provided on one side of the power rod 10. The driving device provides power for the movement of the first sliding sleeve 4.

[0032] Furthermore, firstly, the first base 2 is installed on the surface of the sewing machine body 1. Then, according to the size of the inclined pressing plate 9, the two inclined pressing plates 9 are moved. The inclined pressing plates 9 are slid along the second slide bar 8 to a suitable position. Then, the front end of the inclined pressing plate 9 is moved upward. Then, the fabric to be sewn is placed under the inclined pressing plate 9. Then, the inclined pressing plate 9 is released. The front end of the inclined pressing plate 9 will abut against the fabric. When the first sliding sleeve 4 moves the inclined pressing plate 9 forward through the cooperation of the connecting rod 5, connecting plate 6, concave support plate 7, and second slide bar 8, it will move the fabric forward for sewing. When the first sliding sleeve 4 moves backward, it will not move the fabric backward. Then, the inclined pressing plate 9 will move the fabric forward again for sewing, thereby completing the hemming work, improving the degree of automation, and thus improving work efficiency.

[0033] First, the U-shaped groove 16 of the U-shaped plate 13 is slidably connected to the threaded connecting sleeve 15. Then, the fixing bolt 17 is threadedly connected to the threaded connecting sleeve 15. The fixing bolt 17 then fixes the U-shaped plate 13 through the fixing plate 18, thus fixing the U-shaped plate 13 to the output end of the servo motor 14. When sewing is required, the servo motor 14 can be started. The servo motor 14 will drive the U-shaped plate 13 to rotate. The U-shaped plate 13 will drive the power plate 11 to move back and forth through the rotating shaft 12. The power plate 11 will then drive the power rod 10 to move back and forth. Subsequently, the power rod 10 will drive the first sliding sleeve 4 to move back and forth along the first sliding rod 3. The first sliding sleeve 4, through the cooperation of the connecting rod 5, connecting plate 6, concave support plate 7, and second sliding rod 8, will drive the inclined pressing plate 9 to move back and forth. The inclined pressing plate 9 will complete the hemming and sewing work of the fabric, making it convenient for workers to perform batch hemming work of the fabric, reducing work pressure and improving work efficiency.

[0034] When it is time to place the fabric, the T-shaped slide bar 20 can be moved upward. The T-shaped slide bar 20 will slide along the moving slide groove 19, and then the T-shaped slide bar 20 will drive the inclined pressing plate 9 to squeeze the pressing spring 22 upward. After the fabric is placed, the T-shaped slide bar 20 can be released. At this time, the pressing spring 22 will push the top of the inclined pressing plate 9 to abut against the surface of the fabric below the inclined pressing plate 9, so that the inclined pressing plate 9 can press the fabric, increase the force of the inclined pressing plate 9 pressing the fabric, and thus improve the stability of the device operation.

[0035] In this embodiment, the driving device includes a power plate 11 rotatably mounted on the side wall of the power rod 10, and a rotating shaft 12 is rotatably connected to one end of the power plate 11. A U-shaped plate 13 is rotatably connected to the side wall of the rotating shaft 12, and a servo motor 14 is provided on one side of the U-shaped plate 13. The servo motor 14 is fixedly mounted on the surface of the sewing machine body 1, and a threaded connecting sleeve 15 is fixedly connected to the output end of the servo motor 14. A U-shaped groove 16 is provided on the side wall of the U-shaped plate 13, and the inner wall of the U-shaped groove 16 is slidably connected to the side wall of the threaded connecting sleeve 15. A fixing bolt 17 is threadedly connected inside the U-shaped groove 16, and a fixing plate 18 is slidably connected to the side wall of the fixing bolt 17. The side wall of the fixing plate 18 abuts against the side wall of the U-shaped plate 13.

[0036] Furthermore, firstly, the U-shaped groove 16 of the U-shaped plate 13 is slidably connected to the threaded connecting sleeve 15. Then, the fixing bolt 17 is threadedly connected to the threaded connecting sleeve 15. Subsequently, the fixing bolt 17 fixes the U-shaped plate 13 through the fixing plate 18, thereby fixing the U-shaped plate 13 to the output end of the servo motor 14. When sewing work is required, the servo motor 14 can be started. The servo motor 14 will drive the U-shaped plate 13 to rotate. The U-shaped plate 13 will drive the power plate 11 to move back and forth through the rotating shaft 12. In turn, the power plate 11 will drive the power rod 10 to move back and forth. Then, the power rod 10 will drive the first sliding sleeve 4 to move back and forth along the first sliding rod 3. The first sliding sleeve 4, through the cooperation of the connecting rod 5, connecting plate 6, concave support plate 7, and second sliding rod 8, drives the inclined pressing plate 9 to move back and forth. The inclined pressing plate 9 will complete the hemming and sewing work of the fabric, which is convenient for workers to perform batch hemming work of the fabric, reduce work pressure, and improve work efficiency.

[0037] In this embodiment, the elastic mechanism includes a movable groove 19 formed on the surface of the inclined pressing plate 9, and a T-shaped slide rod 20 is slidably connected to the inner wall of the movable groove 19. A T-shaped groove 21 is formed on the bottom surface of the concave support plate 7, and a pressing spring 22 is sleeved on the side wall of the T-shaped slide rod 20. The pressing spring 22 is located below the concave support plate 7.

[0038] Furthermore, when it is necessary to place the fabric, the T-shaped slide bar 20 can be moved upward. The T-shaped slide bar 20 will slide along the moving slide groove 19, and then the T-shaped slide bar 20 will drive the inclined pressing plate 9 to squeeze the pressing spring 22 upward. After the fabric is placed, the T-shaped slide bar 20 can be released. At this time, the pressing spring 22 will push the top of the inclined pressing plate 9 to abut against the surface of the fabric below the inclined pressing plate 9, so that the inclined pressing plate 9 can press the fabric, increase the force of the inclined pressing plate 9 pressing the fabric, and thus improve the stability of the device operation.

[0039] In this embodiment, auxiliary pads 27 are fixedly connected to both the top and bottom ends of the pressing spring 22, and the auxiliary pads 27 are slidably installed on the side wall of the T-shaped slide bar 20.

[0040] Furthermore, by setting auxiliary pads 27 at the top and bottom of the pressing spring 22, it can be ensured that the pressing spring 22 will not rub excessively against the bottom surface of the concave support plate 7 when the tilting pressing plate 9 is moved, thereby reducing friction, facilitating flexible movement of the tilting pressing plate 9, improving the smoothness of operation, and reducing the difficulty of operation.

[0041] In this embodiment, one end of the inclined pressing plate 9 is provided with multiple slots 26.

[0042] Furthermore, by setting multiple slots 26, the slots 26 can provide roughness to the front end of the inclined pressing plate 9, improve friction, and enable the inclined pressing plate 9 to better push the fabric below the inclined pressing plate 9 forward at the same time as the inclined pressing plate 9.

[0043] In this embodiment, a roller rod 28 is fixedly installed at the bottom end of the inclined pressing plate 9, and a movable roller 29 is rotatably connected to the side wall of the roller rod 28.

[0044] Furthermore, by setting the roller rod 28 and the movable roller 29 to cooperate, the movable roller 29 will roll along the surface of the fabric when the inclined pressing plate 9 moves backward, avoiding excessive pulling of the fabric when the inclined pressing plate 9 moves backward, which would cause the fabric to break, thus improving the safety of the inclined pressing plate 9 when it moves and improving the safety of operation.

[0045] In this embodiment, a support plate 23 is slidably connected to the side wall of the T-shaped slide bar 20, and a lifting rod 24 is rotatably installed inside the support plate 23. A limiting slide plate 25 is fixedly installed at the bottom end of the lifting rod 24, and the limiting slide plate 25 is slidably installed inside the T-shaped slide groove 21.

[0046] Furthermore, when it is necessary to place the fabric under the inclined pressing plate 9, the lifting rod 24 can be moved upward. When the lifting rod 24 moves the limiting slide plate 25 upward and disengages from the T-shaped slide groove 21, the lifting rod 24 will move the two T-shaped slide rods 20 upward through the support plate 23. Then, the two T-shaped slide rods 20 can move the front end of the inclined pressing plate 9 away from the table of the sewing machine body 1. After that, the lifting rod 24 can be rotated so that the rotation direction of the limiting slide plate 25 on the bottom surface of the lifting rod 24 can be placed on the surface of the concave support plate 7. At this time, the support plate 23 can support the two T-shaped slide rods 20, which makes it convenient to place the fabric under the inclined pressing plate 9, reducing the difficulty of operation and assisting in the placement of the fabric.

[0047] In this embodiment, auxiliary cones 33 are fixedly installed at the top of both the lifting rod 24 and the T-shaped slide rod 20.

[0048] Furthermore, by setting an auxiliary cone 33, the auxiliary cone 33 can assist the staff in pulling the T-shaped slide bar 20 and the lifting bar 24, reducing the difficulty of operation, facilitating the lifting of the tilting pressing plate 9, and improving the ease of operation.

[0049] In this embodiment, a second base 30 is fixedly installed on the surface of the sewing machine body 1, and a third slide rod 31 is fixedly installed on the surface of the second base 30. A second sliding sleeve 32 is fixedly installed on the bottom surface of the connecting rod 5, and the second sliding sleeve 32 is slidably installed on the side wall of the third slide rod 31.

[0050] Furthermore, by setting up the cooperation of the second base 30, the third slide bar 31 and the second slide sleeve 32, one end of the connecting rod 5 can be supported, so that the connecting rod 5 can move back and forth smoothly, reducing the possibility of the connecting rod 5 shaking, improving the stability of operation, and facilitating the folding of the fabric.

[0051] The working principle is as follows: First, the first base 2 is installed on the surface of the sewing machine body 1. Then, according to the size of the inclined pressing plate 9, the two inclined pressing plates 9 are moved. The inclined pressing plates 9 are slid along the second slide bar 8 to a suitable position. Then, the front end of the inclined pressing plate 9 is moved upward. Then, the fabric to be sewn is placed under the inclined pressing plate 9. Then, the inclined pressing plate 9 is released. The front end of the inclined pressing plate 9 will abut against the fabric. When the first sliding sleeve 4 moves the inclined pressing plate 9 forward through the cooperation of the connecting rod 5, connecting plate 6, concave support plate 7, and second slide bar 8, it will move the fabric forward for sewing. When the first sliding sleeve 4 moves backward, it will not move the fabric backward. Then, the inclined pressing plate 9 will move the fabric forward again for sewing.

[0052] First, the U-shaped groove 16 of the U-shaped plate 13 is slidably connected to the threaded connecting sleeve 15. Then, the fixing bolt 17 is threadedly connected to the threaded connecting sleeve 15. The fixing bolt 17 will then fix the U-shaped plate 13 through the fixing plate 18, thereby fixing the U-shaped plate 13 to the output end of the servo motor 14. When sewing is required, the servo motor 14 can be started. The servo motor 14 will drive the U-shaped plate 13 to rotate. The U-shaped plate 13 will drive the power plate 11 to move back and forth through the rotating shaft 12. The power plate 11 will then drive the power rod 10 to move back and forth. Subsequently, the power rod 10 will drive the first sliding sleeve 4 to move back and forth along the first sliding rod 3. The first sliding sleeve 4, through the cooperation of the connecting rod 5, connecting plate 6, concave support plate 7, and second sliding rod 8, will drive the inclined pressing plate 9 to move back and forth. The inclined pressing plate 9 will complete the hemming and sewing work of the fabric.

[0053] When it is time to place the fabric, the T-shaped slide bar 20 can be moved upward. The T-shaped slide bar 20 will slide along the moving slide groove 19, and then the T-shaped slide bar 20 will drive the inclined pressing plate 9 to squeeze the pressing spring 22 upward. After the fabric is placed, the T-shaped slide bar 20 can be released. At this time, the pressing spring 22 will push the top of the inclined pressing plate 9 to abut against the surface of the fabric below the inclined pressing plate 9, so that the inclined pressing plate 9 can press the fabric and increase the pressure of the inclined pressing plate 9 on the fabric.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic hemming mechanism for use with a sewing machine, comprising a sewing machine body (1), characterized in that: The sewing machine body (1) is fixedly mounted with a first base (2), and a first slide rod (3) is fixedly mounted on the surface of the first base (2). A first sliding sleeve (4) is slidably connected to the side wall of the first slide rod (3), and a connecting rod (5) is fixedly mounted on the side wall of the first sliding sleeve (4). A connecting plate (6) is fixedly mounted on the side wall of the connecting rod (5), and a concave support plate (7) is fixedly mounted on the bottom surface of the connecting plate (6). A second slide rod (8) is fixedly mounted on the inner wall of the concave support plate (7), and two inclined pressing plates (9) are slidably mounted on the side wall of the second slide rod (8). An elastic mechanism is provided above the inclined pressing plate (9), and the elastic mechanism is used to press and fix the position of the front end of the inclined pressing plate (9). A power rod (10) is fixedly mounted on the side wall of the first base (2), and a driving device is provided on one side of the power rod (10). The driving device provides power for the movement of the first sliding sleeve (4).

2. The automatic hemming mechanism for use with a sewing machine according to claim 1, characterized in that, The driving device includes a power plate (11) rotatably mounted on the side wall of the power rod (10), and a rotating shaft (12) is rotatably connected to one end of the power plate (11). A U-shaped plate (13) is rotatably connected to the side wall of the rotating shaft (12), and a servo motor (14) is provided on one side of the U-shaped plate (13). The servo motor (14) is fixedly mounted on the surface of the sewing machine body (1), and a threaded connecting sleeve (15) is fixedly connected to the output end of the servo motor (14). A U-shaped groove (16) is provided on the side wall of the U-shaped plate (13), and the inner wall of the U-shaped groove (16) is slidably connected to the side wall of the threaded connecting sleeve (15). A fixing bolt (17) is threadedly connected inside the U-shaped groove (16), and a fixing plate (18) is slidably connected to the side wall of the fixing bolt (17). The side wall of the fixing plate (18) abuts against the side wall of the U-shaped plate (13).

3. The automatic hemming mechanism for use with a sewing machine according to claim 1, characterized in that, The elastic mechanism includes a movable groove (19) formed on the surface of the inclined pressing plate (9), and a T-shaped slide rod (20) is slidably connected to the inner wall of the movable groove (19). A T-shaped groove (21) is formed on the bottom surface of the concave support plate (7), and a pressing spring (22) is sleeved on the side wall of the T-shaped slide rod (20). The pressing spring (22) is located below the concave support plate (7).

4. The automatic hemming mechanism for use with a sewing machine according to claim 3, characterized in that, The top and bottom ends of the pressing spring (22) are fixedly connected with auxiliary pads (27), and the auxiliary pads (27) are slidably installed on the side wall of the T-shaped slide bar (20).

5. An automatic hemming mechanism for use with a sewing machine according to claim 1, characterized in that, The inclined pressing plate (9) has multiple slots (26) at one end.

6. An automatic hemming mechanism for use with a sewing machine according to claim 5, characterized in that, The bottom end of the inclined pressing plate (9) is fixedly installed with a roller rod (28), and the side wall of the roller rod (28) is rotatably connected with a movable roller (29).

7. An automatic hemming mechanism for use with a sewing machine according to claim 3, characterized in that, The side wall of the T-shaped slide bar (20) is slidably connected to a support plate (23), and a lifting rod (24) is rotatably installed inside the support plate (23). The bottom end of the lifting rod (24) is fixedly installed with a limiting slide plate (25), and the limiting slide plate (25) is slidably installed inside the T-shaped slide groove (21).

8. An automatic hemming mechanism for use with a sewing machine according to claim 7, characterized in that, Both the top of the lifting rod (24) and the T-shaped slide rod (20) are fixedly equipped with auxiliary cones (33).

9. An automatic hemming mechanism for use with a sewing machine according to claim 1, characterized in that, The sewing machine body (1) is fixedly mounted with a second base (30), and a third slide rod (31) is fixedly mounted on the surface of the second base (30). The bottom surface of the connecting rod (5) is fixedly mounted with a second sliding sleeve (32), and the second sliding sleeve (32) is slidably mounted on the side wall of the third slide rod (31).

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