Arc toe sewing machine

Abstract

This utility model discloses an arc-shaped sock toe sewing machine, comprising: a frame, on which a sock support track and an arc-shaped track are provided; a transmission mechanism, including a sock sewing track and a motion mechanism; a sock feeding assembly, including a sock tube, a sock support blade, a pressure spring, and a sliding assembly, wherein the sock tube is slidably mounted on the motion frame, the sliding assembly is slidably mounted on the motion frame and / or the sock tube, the sock support blade is movably mounted on the sliding assembly, the front end of the sock tube is provided with a flared part, the sock support blade cooperates with the flared part, and the pressure spring is used to return the sock tube to its rearward position; and a sewing device. Using the above solution, an arc-shaped sock toe sewing machine is provided, which achieves socks passing through the sewing device in an arc-shaped trajectory to form an arc-shaped sock toe by guiding the sock support blade through the arc-shaped track.

Description

Technical Field

[0001] This utility model belongs to the field of sock manufacturing, specifically relating to an arc-shaped sock toe sewing machine. Background Technology

[0002] A sock sewing machine is used to... Figure 1 The device shown is used to sew the toe 91 of the tubular sock 9. Existing sock toe sewing machines typically feed the sock in a straight line, resulting in a straight-line sewing of the toe.

[0003] However, market feedback indicates that the straight toe design of these socks results in an uncomfortable feeling when worn, with the ends being loose and the middle tight. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an arc-shaped sock toe sewing machine that uses an arc-shaped track to guide the sock support blades to slide, so that the socks pass through the sewing device in an arc-shaped trajectory to form an arc-shaped sock toe.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes: a frame, on which a guide rail is provided, the guide rail including a stocking support rail and an arc-shaped rail; a transmission mechanism, on which the transmission mechanism is disposed, the transmission mechanism including a transmission rail and a motion frame slidably disposed on the transmission rail, the transmission rail being provided with a sewing rail extending in a left-right direction; and a stocking feeding assembly, the stocking feeding assembly including a stocking tube, stocking support blades, a pressure spring, and a sliding assembly, the rear end of the stocking tube being slidably disposed on the motion frame in a front-back direction, the sliding assembly being slidably disposed on the motion frame and / or the stocking tube in a front-back direction, the number of stocking support blades being two, and the two stocking support blades being located on both sides of the stocking tube, each stocking support blade being movably disposed on the sliding assembly, the front end of the stocking tube being provided with a flared part, the stocking support blades cooperating with the flared part to cause the sliding assembly to move forward relative to the stocking tube, thereby causing the front ends of the two stocking tubes to move away from each other. A first mating member is provided on the outer periphery of the stocking tube. A top pressure spring is disposed between the first mating member and the motion frame to reset the stocking tube to the rearward position. The first mating member is located on the motion trajectory of the sliding assembly. A second mating member is provided on the sliding assembly to cooperate with the guide rail. A sewing device is used. The sock to be sewn is fitted onto the outer periphery of the stocking tube and the sock support blades. The motion frame slides through the sewing track so that the second mating member, under the action of the sock support track, first moves the sliding assembly forward relative to the stocking tube, causing the front ends of the two sock support blades to move away from each other and open the sock. Then, under the action of the arc-shaped track, the second mating member moves the sliding assembly along an arc-shaped trajectory that is first backward and then forward, so that the front end of the sock passes through the sewing device and is sewn to form an arc-shaped sock toe. In the state where the second mating member and the arc-shaped track are engaged, the sliding assembly always abuts against the first mating member so that the sliding assembly and the stocking tube move back and forth synchronously.

[0006] The present invention is further configured such that: the transmission track includes a first track and a second track with a front-to-back spacing; the motion frame includes a first sliding frame, a second sliding frame and at least two connecting slide rods, the first sliding frame is slidably disposed on the first track, the second sliding frame is slidably disposed on the second track, the length direction of each connecting slide rod is along the front-to-back direction, and each connecting slide rod fixes the first sliding frame and the second sliding frame together.

[0007] The present invention is further configured such that: the first sliding frame is provided with a first guide hole, the second sliding frame is provided with a second guide hole, and the sock tube is respectively passed through the first guide hole and the second guide hole to guide the sliding.

[0008] The present invention is further configured such that: the sliding assembly includes a first sliding member, the first sliding member is provided with a first mounting hole and at least two sliding holes, the sock tube is inserted into the first mounting hole, and a separation gap is provided between the outer peripheral wall of the sock tube and the inner peripheral wall of the first mounting hole, and at least two of the sliding holes and different connecting slide rods are inserted and cooperated to guide the first sliding member to slide on the motion frame.

[0009] The present invention is further configured such that: the sliding assembly further includes a second sliding member, the second sliding member is provided with a second mounting hole and two mounting ears, the second mounting hole and the stocking tube are fitted together to guide the second sliding member to slide on the stocking tube, the middle part of each stocking support blade is hinged to different mounting ears, and the rear end of each stocking support blade is movably connected to the first sliding member.

[0010] The present invention is further configured such that: a rotating seat is rotatably disposed on the first sliding member, the rotation axis of the rotating seat relative to the first sliding member is perpendicular to the front-back direction, two movable tracks are centrally symmetrically disposed on the rotating seat, the track direction of the movable tracks extends along the rotation circumference of the rotating seat relative to the first sliding member and along the rotation radial direction of the rotating seat relative to the first sliding member, and the rear end of the support blade is provided with a movable connecting part that cooperates with the movable track.

[0011] The present invention is further configured such that: the number of the connecting slide rod and the sliding perforation is two, and the two connecting slide rods and the sliding perforation are symmetrically arranged on both sides of the sock tube.

[0012] The present invention is further configured such that: a first guide member and a second guide member are provided on the frame, the first guide member is provided on the rear side of the second guide member, a first arc-shaped guide surface is provided on the front side of the first guide member, a second arc-shaped guide surface is provided on the rear side of the second guide member, and the arc-shaped track is provided between the first arc-shaped guide surface and the second arc-shaped guide surface.

[0013] The present invention is further configured such that: the number of the motion frames is multiple and arranged in a ring, and a connecting chain is provided between adjacent motion frames; the transmission track is in the shape of a racetrack.

[0014] By adopting the above technical solution, 1. The cylindrical stocking to be sewn is fitted around the outer periphery of the stocking tube and the stocking support blades. Under the elastic restoring action of the cylindrical stocking itself, the front end of the stocking support blades will abut against the flared part. Then, the moving frame slides through the stocking track so that the second mating part first achieves the sliding component relative to the stocking tube under the action of the stocking support track, thereby moving the front ends of the two stocking support blades away from each other and further opening the stocking. The front ends of the stocking support blades extend forward from the stocking tube so that a certain distance is maintained between the toe and the stocking tube to ensure the flatness of the toe after it is opened. Then the second mating part... 1. Under the action of the arc-shaped track, the sliding component moves along an arc-shaped trajectory, first backward and then forward, so that the front end of the sock passes through the sewing device and is sewn to form an arc-shaped sock toe. 2. In the early stage of the engagement between the second fitting part and the sock support track, the sliding component does not contact the first fitting part, so that the top pressure spring does not need to be compressed, thus making the movement of the sliding component smoother. 3. When the second fitting part and the arc-shaped track are engaged, the sliding component always abuts against the first fitting part, so that the sock support blade and the sock tube are set to move synchronously, so that the front end of the sock support blade will not open or close during the sewing process, thus maintaining the cylindrical sock and ensuring the stability of the sewing. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0016] Figure 1 A schematic diagram of an existing tubular sock with a parallel toe.

[0017] Figure 2 A schematic diagram illustrating the process of manufacturing a tubular sock with an arc-shaped toe.

[0018] Figure 3 This is an assembly drawing illustrating a specific embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of the first guide member and the second guide member in a specific embodiment of this utility model;

[0020] Figure 5 This is a schematic diagram of the sock-supporting blades and the rotating seat in a specific embodiment of this utility model;

[0021] Figure 6 for Figure 3 Enlarged view of part of the image;

[0022] Figure 7 for Figure 3 Enlarged view of part of the image;

[0023] Figure 8 for Figure 3 Enlarged view of part of the image;

[0024] Figure 9 for Figure 3 A magnified view of a portion of the image.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Rack;

[0027] 11. Guide rail; 12. First guide component; 13. Second guide component; 14. U-shaped connector;

[0028] 111. Stocking support track; 112. Arc-shaped track; 121. First arc-shaped guide surface; 131. Second arc-shaped guide surface;

[0029] 2. Transmission mechanism;

[0030] 21. Transmission rail; 22. Motion frame; 23. Rotating wheel; 24. Output rod;

[0031] 211. First track; 212. Second track; 213. Sock sewing track; 221. First sliding frame; 222. Second sliding frame; 223. Connecting slide bar; 224. Connecting chain; 225. Matching rod; 231. Locking notch;

[0032] 2211, First guide hole; 2221, Second guide hole;

[0033] 3. Sock delivery assembly;

[0034] 31. Stocking tube; 32. Stocking support blade; 33. Top pressure spring; 34. Sliding assembly;

[0035] 311. Flared part; 312. First mating part; 321. Movable connecting part; 322. Abutting surface; 341. First sliding part; 342. Second sliding part;

[0036] 3111, Mutating position; 3411, Second mating part; 3412, First assembly through hole; 3413, Sliding through hole; 3414, Separation gap; 3415, Rotating seat; 3416, Movable track; 3417, Mounting post; 3421, Second assembly through hole; 3422, Assembly lug;

[0037] 4. Sewing device;

[0038] 9. Tube stockings;

[0039] 91. Sock toe. Detailed Implementation

[0040] To enable those skilled in the art to better understand this utility model and to more clearly define the scope of protection claimed by this utility model, the present utility model is described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present utility model, and the specific and direct descriptions of related structures are merely for the convenience of understanding the present utility model; the specific features do not necessarily or directly limit the scope of implementation of the present utility model. Conventional choices and substitutions made by those skilled in the art under the guidance of the present utility model should all be considered within the scope of protection claimed by this utility model.

[0041] like Figures 3-9 As shown, this utility model discloses an arc-shaped sock toe sewing machine, comprising:

[0042] The frame 1 is provided with a guide rail 11, which includes a sock support rail 111 and an arc-shaped rail 112. The sock support rail 111 is inclined to the right and forward, and the arc-shaped rail 112 is inclined to the right and then backward and forward.

[0043] Transmission mechanism 2 is mounted on frame 1. Transmission mechanism 2 includes transmission rail 21 and motion frame 22 that is slidably mounted on transmission rail 21. Transmission rail 21 is provided with a sock sewing track 213 that extends horizontally to the right.

[0044] The stocking delivery assembly 3 includes a stocking tube 31, stocking support blades 32, a pressure spring 33, and a sliding assembly 34. The stocking tube 31 extends forward and backward, and its rear end slides along the front-back direction onto the motion frame 22. The sliding assembly 34 slides along the front-back direction onto the motion frame 22 and / or the stocking tube 31. There are two stocking support blades 32, located on both sides of the stocking tube 31. Each stocking support blade 32 is movably mounted on the sliding assembly 34. In addition, the front end of the stocking tube 31 is provided with a flared part 311, and the stocking support blades 32 cooperate with the flared part 311 to facilitate sliding. The component 34 moves forward relative to the stocking tube 31, causing the front ends of the two stocking tubes 31 to move away from each other. A first mating part 312 is fixedly provided on the outer periphery of the stocking tube 31. The front end of the top pressure spring 33 is fixedly connected to the motion frame 22, and the rear end of the top pressure spring 33 is fixedly connected to the first mating part 312. When the stocking tube 31 moves forward, the top pressure spring 33 will be compressed and accumulate elastic potential energy. During the reset process of the top pressure spring 33, the stocking tube 31 is driven to reset backward. The first mating part 312 is located on the forward movement trajectory of the sliding component 34. The sliding component 34 is provided with a second mating part 3411 for mating with the guide rail 11.

[0045] Sewing device 4;

[0046] In the case of the second mating component 3411 and the sock support track 111, the sliding component 34 first moves forward towards the first mating component 312, and then moves forward synchronously against the first mating component 312; in the case of the second mating component 3411 and the arc track 112, the sliding component 34 always abuts against the first mating component 312 so that the sliding component 34 and the sock tube 31 move back and forth synchronously.

[0047] Therefore, 1. The cylindrical stocking 9 to be sewn is fitted around the outer periphery of the stocking tube 31 and the stocking support blades 32. Under the elastic restoring action of the cylindrical stocking 9 itself, the front end of the stocking support blades 32 will abut against the flared part 311. Then, the moving frame 22 slides through the sewing track 213 so that the second mating part 3411 first moves forward relative to the stocking tube 31 under the action of the stocking support track 111, causing the front ends of the two stocking support blades 32 to move away from each other and further open the stocking. The front ends of the stocking support blades 32 extend forward out of the stocking tube 31 so that a certain distance is maintained between the toe 91 and the stocking tube 31 to ensure the flatness of the toe 91 after it is opened. Then, under the action of the arc track 112, the second mating part 3411 moves the sliding part 34 along an arc trajectory that is first backward and then forward so that the front end of the stocking passes through the sewing device 4 and is sewn. Figure 2 As shown in the diagram, 2. In the early stage of the engagement of the second mating part 3411 and the sock support track 111, the sliding component 34 does not contact the first mating part 312, so that the top pressure spring 33 does not need to be compressed, thus making the movement of the sliding component 34 smoother. 3. When the second mating part 3411 and the arc-shaped track 112 are engaged, the sliding component 34 always abuts against the first mating part 312, so that the sock support blade 32 and the sock tube 31 are set to move synchronously, so that the front end of the sock support blade 32 will not be stretched or contracted during the sewing process to maintain the stability of the cylindrical sock 9.

[0048] Specifically, in this embodiment, the transmission track 21 includes a first track 211 and a second track 212 with a front-to-back spacing, wherein the first track 211 is located behind the second track 212; the motion frame 22 includes a first sliding frame 221, a second sliding frame 222, and at least two connecting slide rods 223. The first sliding frame 221 is slidably disposed on the first track 211, and the second sliding frame 222 is slidably disposed on the second track 212. The length direction of each connecting slide rod 223 is along the front-to-back direction, and each connecting slide rod 223 fixes the first sliding frame 221 and the second sliding frame 222 together. Specifically, the front and rear ends of the connecting slide rod 223 are threaded to the first sliding frame 221 and the second sliding frame 222, or fixedly connected by threading and cooperating with nuts. Therefore, the motion frame 22 is stably assembled through the first sliding frame 221, the second sliding frame 222 and multiple connecting slide rods 223, and the motion frame 22 is guided to slide by the front and rear first rails 211 and second rails 212 to improve the stability of the sliding.

[0049] The first mating part 312 is located between the first sliding frame 221 and the second sliding frame 222, and the front end of the top pressure spring 33 abuts against the second sliding frame 222.

[0050] Specifically, two cylindrical locking blocks on the first sliding frame 221 and the second sliding frame 222 respectively cooperate with the corresponding first track 211 or second track 212 to guide the sliding.

[0051] Preferably, the first sliding frame 221 is provided with a first guide hole 2211 extending from front to back, and the second sliding frame 222 is provided with a second guide hole 2221 extending from front to back. The stocking tube 31 passes through the first guide hole 2211 and the second guide hole 2221 respectively to guide its sliding. This improves the stability of the stocking tube 31's sliding by guiding it from front to back through the first guide hole 2211 and the second guide hole 2221.

[0052] Preferably, in this embodiment, the sliding assembly 34 includes a first sliding member 341, which is disposed between the first sliding frame 221 and the first mating member 312. A second mating member 3411 is disposed on the first sliding member 341. Specifically, the first sliding member 341 has a first through-hole 3412 and at least two sliding holes 3413. The stocking tube 31 passes through the first through-hole 3412, and the outer circumferential radius of the stocking tube 31 is r1, the inner circumferential radius of the first through-hole 3412 is r2, and r1 < r2, so that the outer circumferential wall of the stocking tube 31 and the inner circumferential radius of the first through-hole 3412 are aligned. A separation gap 3414 is provided between the inner peripheral walls of the first assembly perforation 3412, so that the first sliding member 341 and the stocking tube 31 are arranged in a non-contact manner, so as to prevent the movement of the first sliding member 341 from generating bending moment or torque on the stocking tube 31, which also needs to move back and forth, thus causing the stocking tube 31 to slide unsmoothly. Each sliding perforation 3413 is respectively connected to different connecting slide rods 223 to guide the first sliding member 341 to slide on the motion frame 22. Since multiple sliding perforations 3413 and connecting slide rods 223 are engaged, the relative rotation limit of the sliding assembly 34 relative to the motion frame 22 can be achieved.

[0053] In addition, the sliding assembly 34 also includes a second sliding member 342. The second sliding member 342 is disposed on the front side of the second sliding frame 222 and located in the middle of the stocking tube 31. Specifically, the second sliding member 342 is provided with a second mounting hole 3421 that runs through the front and back and two mounting ears 3422 located on both sides of the outer periphery of the second sliding member 342. The second mounting hole 3421 and the stocking tube 31 are fitted together to guide the second sliding member 342 to slide on the stocking tube 31. The middle part of each stocking support blade 32 is hinged to different mounting ears 3422, and the rear end of each stocking support blade 32 is movably connected to the first sliding member 341.

[0054] Therefore, under the action of the second mating part 341 and the guide rail 11, the first sliding member 341 drives the sock support blade 32 and the second sliding frame 222 to slide back and forth. Under the hinge action of the second sliding frame 222 and the guiding action of the flared part 311, the front end of the sock support blade 32 separates during the forward movement.

[0055] In addition, a rotating seat 3415 is rotatably mounted on the first sliding member 341. The rotation axis of the rotating seat 3415 relative to the first sliding member 341 is perpendicular to the front-back direction. Two movable tracks 3416 are centrally symmetrically arranged on the rotating seat 3415. The movable tracks 3416 are arc-shaped. More specifically, the track direction of the movable guide rail is along the circumferential rotation of the rotating seat 3415 relative to the first sliding member 341 and along the radial rotation of the rotating seat 3415 relative to the first sliding member 341. Correspondingly, the rear end of each support blade 32 is provided with a movable connecting part 321 that cooperates with the movable track 3416.

[0056] Therefore, during the forward movement of the stocking support blade 32, the front end of the stocking support blade 32 will separate and the rear end will close. In order to ensure that the first sliding member 341 effectively transmits the force to the stocking support blade 32, it is connected to the stocking support blade 32 through the movable track 3416 and the movable connecting part 321.

[0057] Specifically, the second mating component 3411 is disposed on the side of the rotating seat 3415 away from the first sliding component 341, and the first sliding component 341 is fixedly provided with a mounting post 3417. The rotating seat 3415 is rotatably mounted on the mounting post 3417 through a bearing. The second mating component 3411 is a roller, and the second mating component 3411 is rotatably mated on the mounting post 3417 by means of a bearing, so that the second mating component 3411 can pass through the arc track 112 more smoothly.

[0058] The sock-supporting blade 32 has a mating surface 322 on the side facing the sock tube 31, and the flared part 311 has a mating position 3111 that abuts against the mating surface 322. The mating surface 322 is forward-facing and extends outward along the radial direction of the sock tube 31, so that the front end of the sock-supporting blade 32 can be separated when the sock-supporting blade 32 moves forward.

[0059] Specifically, in this embodiment, the frame 1 is provided with a first guide member 12, a second guide member 13, and a U-shaped connector 14. The rear side of the first guide member 12 is fixedly installed on the frame 1 by bolts or other means, and the front side of the first guide member 12 is provided with a first arc-shaped guide surface 121. The second guide member 13 is provided on the front side of the first guide member 12, and the rear side of the second guide member 13 is provided with a second arc-shaped guide surface 131. In addition, the opening of the U-shaped connector 14 faces downward, and one U-shaped end of the U-shaped connector 14 is fixedly connected to the upper side of the first guide member 12 by bolts, and the other U-shaped end is fixedly connected to the upper side of the second guide member 13 by bolts, so that the first guide member 12 and the second guide member 13 are fixedly connected. The arc-shaped track 112 is provided between the first arc-shaped guide surface 121 and the second arc-shaped guide surface 131.

[0060] Specifically, there are multiple motion frames 22 arranged in a ring, with connecting chains 224 between adjacent motion frames 22 to ensure synchronous movement. Specifically, the first track 211 and the second track 212 are racetrack-shaped, with the arc-shaped sections on the left and right sides. The sock-sewing track 213 is located above the transmission track 21. This design ensures that the racetrack-shaped transmission track 21 not only enables the cyclical movement of the motion frames 22, but also that the horizontal section of the racetrack-shaped transmission track 21 meets the requirements of the sock-sewing track 213, resulting in a simpler overall structure.

[0061] In addition, the transmission mechanism 2 also includes two rotating wheels 23, a power motor, and an output rod 24. The power motor is installed inside the rear side of the frame 1. The output rod 24 is arranged front to back, with its front end inserted into the frame 1 and rotatably mounted via a bearing. The rear end of the output rod 24 extends into the frame 1 and is fixedly connected to the output shaft of the power motor, so that the output rod 24 can be rotated under the operation of the power motor. The two rotating wheels 23 are arranged with a front-to-back distance and are located between the first track 211 and the second track 212. Each rotating wheel 23 is connected by... The rotating wheel 23 is fixedly connected to the output rod 24 by means of bolts, keys, etc., so that it rotates with the fixed rod. Multiple locking notches 231 are arranged at equal intervals along the outer periphery of each rotating wheel 23. Correspondingly, the moving frame 22 includes a mating rod 225. The length direction of the mating rod 225 is along the front-back direction. The mating rod 225 fixes the first sliding frame 221 and the second sliding frame 222. Specifically, the front and rear ends of the mating rod 225 are connected to the first sliding frame 221 and the second sliding frame 222 by threads, or by passing through and mating with nuts for fixed connection.

[0062] Therefore, the power motor drives the output rod 24 to rotate, which in turn drives the two rotating wheels 23 to rotate, so that the locking notch 231 on the rotating wheel 23 engages with the mating rod 225, thereby driving the motion frame 22 to rotate.

[0063] In this embodiment, the sewing device 4 can be a sewing machine of the Pegasus brand, model MX5214-A-M03, specification 333-2X4, to sew the stockings 9 as they pass through the sewing machine and to cut off the excess part of the toe 91.

[0064] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An arc toe sewing machine characterized by, include: A frame (1) is provided with a guide rail (11), the guide rail (11) including a sock support rail (111) and an arc-shaped rail (112); Transmission mechanism (2), the transmission mechanism (2) is disposed on the frame (1), the transmission mechanism (2) includes a transmission rail (21) and a motion frame (22) slidably disposed on the transmission rail (21), the transmission rail (21) is provided with a sock sewing rail (213) extending in the left and right direction; A stocking delivery assembly (3) includes a stocking tube (31), stocking support blades (32), a top pressure spring (33), and a sliding assembly (34). The rear end of the stocking tube (31) is slidably mounted on the motion frame (22) in the front-back direction. The sliding assembly (34) is slidably mounted on the motion frame (22) and / or the stocking tube (31) in the front-back direction. There are two stocking support blades (32), and the two stocking support blades (32) are located on both sides of the stocking tube (31). Each stocking support blade (32) is movably mounted on the sliding assembly (34). The front end of the stocking tube (31) is provided with a flared part (311). The sock blade (32) cooperates with the flared part (311) to make the sliding assembly (34) move forward relative to the sock tube (31) so that the front ends of the two sock tubes (31) move away from each other. The outer periphery of the sock tube (31) is provided with a first mating part (312). The top pressure spring (33) is provided between the first mating part (312) and the motion frame (22) to reset the sock tube (31) backward. The first mating part (312) is located on the movement trajectory of the sliding assembly (34). The sliding assembly (34) is provided with a second mating part (3411) for cooperating with the guide rail (11); sewing device (4); The socks to be sewn are fitted around the outer periphery of the sock tube (31) and the sock support blades (32). The motion frame (22) slides through the sock sewing track (213) so that the second mating member (3411) first moves the sliding component (34) relative to the sock tube (31) forward under the action of the sock support track (111), thereby opening the sock by moving the front ends of the two sock support blades (32) away from each other. Then, under the action of the arc track (112), the second mating member (3411) moves the sliding component (34) along an arc trajectory that moves backward and then forward so that the front end of the sock passes through the sewing device (4) and is sewn to form an arc-shaped sock toe (91). In the state of the second mating member (3411) and the arc track (112), the sliding component (34) always abuts against the first mating member (312) so that the sliding component (34) and the sock tube (31) move back and forth synchronously.

2. The curved toe sewing machine of claim 1, wherein: The transmission track (21) includes a first track (211) and a second track (212) with a front-to-back spacing; The motion frame (22) includes a first sliding frame (221), a second sliding frame (222), and at least two connecting slide rods (223). The first sliding frame (221) is slidably disposed on the first track (211), and the second sliding frame (222) is slidably disposed on the second track (212). The length direction of each connecting slide rod (223) is along the front-back direction, and each connecting slide rod (223) fixes the first sliding frame (221) and the second sliding frame (222) together.

3. The curved toe sewing machine of claim 2, wherein: The first sliding frame (221) is provided with a first guide hole (2211), and the second sliding frame (222) is provided with a second guide hole (2221). The sock tube (31) passes through the first guide hole (2211) and the second guide hole (2221) respectively to guide the sliding through the first guide hole (2211) and the second guide hole (2221).

4. The curved toe sewing machine according to claim 2 or 3, characterized in that: The sliding assembly (34) includes a first sliding member (341), which has a first mounting hole (3412) and at least two sliding holes (3413). The stocking tube (31) passes through the first mounting hole (3412), and a separation gap (3414) is provided between the outer peripheral wall of the stocking tube (31) and the inner peripheral wall of the first mounting hole (3412). At least two of the sliding holes (3413) and different connecting slide rods (223) are inserted and cooperate to guide the first sliding member (341) to slide on the motion frame (22).

5. The curved toe sewing machine of claim 4, wherein: The sliding assembly (34) further includes a second sliding member (342), which is provided with a second mounting hole (3421) and two mounting ears (3422). The second mounting hole (3421) and the stocking tube (31) are fitted together to guide the second sliding member (342) to slide on the stocking tube (31). The middle part of each stocking support blade (32) is hinged to different mounting ears (3422), and the rear end of each stocking support blade (32) is movably connected to the first sliding member (341).

6. The circular toe sewing machine according to claim 5, characterized in that: A rotating seat (3415) is rotatably mounted on the first sliding member (341). The rotation axis of the rotating seat (3415) relative to the first sliding member (341) is perpendicular to the front-back direction. Two movable tracks (3416) are centrally symmetrically arranged on the rotating seat (3415). The track direction of the movable tracks (3416) is along the circumferential rotation of the rotating seat (3415) relative to the first sliding member (341) and along the radial rotation of the rotating seat (3415) relative to the first sliding member (341). The rear end of the support blade (32) is provided with a movable connecting part (321) that cooperates with the movable track (3416).

7. The curved toe sewing machine of claim 4, wherein: The number of the connecting slide rod (223) and the sliding perforation (3413) is two, and the two connecting slide rods (223) and the sliding perforation (3413) are symmetrically arranged on both sides of the stocking tube (31).

8. The circular toe sewing machine according to claim 1, characterized in that: The frame (1) is provided with a first guide (12) and a second guide (13). The first guide (12) is located behind the second guide (13). A first arc-shaped guide surface (121) is provided in front of the first guide (12), and a second arc-shaped guide surface (131) is provided in rear of the second guide (13). The arc-shaped track (112) is located between the first arc-shaped guide surface (121) and the second arc-shaped guide surface (131).

9. The curved toe sewing machine of claim 2, wherein: The number of motion frames (22) is multiple and they are arranged in a ring. A connecting chain (224) is provided between adjacent motion frames (22). The transmission track (21) is shaped like a racetrack.

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