A sewing device

Abstract

The application discloses a sewing device, comprising a main frame, a first moving mechanism, a locking mechanism, a second moving mechanism, a taking-out mechanism and a linkage mechanism. In the application, through cooperation of the mechanisms, workpiece movement and a puncture action of the sewing machine are formed to be coherent, movement during needle puncture is prevented, the puncture needle is prevented from being broken, and the efficiency problem caused by manual sewing is solved.

Description

Technical Field

[0001] This application relates to the field of sewing, and more particularly to a sewing device. Background Technology

[0002] In bag sewing, zippers need to be sewn together with the bag. However, the existing sewing structure has some problems, such as frequent needle breakage in sewing machines, resulting in low production efficiency and low automation. Summary of the Invention

[0003] This application provides a sewing device that can be linked with a sewing machine to prevent needle breakage.

[0004] This application discloses a sewing device, comprising:

[0005] Main frame;

[0006] The first moving mechanism includes a guide rail block and two traveling wheel assemblies. The guide rail block is mounted on the main frame and has a traveling track. The traveling track includes a first track segment and a second track segment along its length. The length of the first track segment is arc-shaped, and the length of the second track segment is horizontal. The traveling wheel assembly includes a traveling wheel, a connecting rod, and a first locking part. The traveling wheel is disposed within the traveling track. The connecting rod is connected to the traveling wheel. The first locking part is disposed on the connecting rod.

[0007] The locking mechanism includes a first telescopic drive member and a second locking part. One end of the first telescopic drive member is disposed on the main frame, and the other end is connected to the second locking part. The second locking part can lock and cooperate with the first locking part under the drive of the first telescopic drive member.

[0008] The second moving mechanism includes a moving cam and a second telescopic drive member; one side of the moving cam is provided with a sliding guide groove corresponding to the connecting rod, and the length direction of the sliding guide groove is perpendicular to the axis of the connecting rod; one end of the connecting rod is provided in the sliding guide groove; one end of the second telescopic drive member is provided on the moving cam.

[0009] A snatching mechanism; the snatching mechanism is provided with a workpiece to be processed, and the snatching mechanism is connected to the other end of the second telescopic drive component;

[0010] The linkage mechanism includes a first drive shaft, a second drive shaft, and a drive gear; the first drive shaft is rotatably mounted on the main frame and is connected to an external sewing machine; the second drive shaft is connected to the first drive shaft in a transmission manner; the drive gear is mounted on the second drive shaft and is meshed with a movable cam.

[0011] The sewing device of this application has at least the following beneficial effects:

[0012] The sewing device of this application includes a main frame, a first moving mechanism, a locking mechanism, a second moving mechanism, a take-up mechanism, and a linkage mechanism. When sewing is required, the sewing machine synchronously drives the first drive shaft and drive gear of the linkage mechanism to rotate. Simultaneously, the second telescopic drive component of the second moving mechanism moves the take-up mechanism and the workpiece on it to the working range of the sewing machine. Then, the drive gear drives the moving cam of the second moving mechanism to rotate. Since the moving cam is connected to the connecting rod of the first moving mechanism, and the connecting rod is connected to the traveling wheel set in the traveling track, the rotation trajectory of the moving cam... Guided by the connecting rod and the traveling wheels, the moving cam initially moves horizontally. When the first locking part of the left traveling wheel assembly aligns with the second locking part of the locking mechanism, the first telescopic drive of the locking mechanism engages the second locking part with the first locking part. Meanwhile, the right traveling wheel assembly continues to guide the moving cam (with the drive gear always meshing with it) to swing from a horizontal to a vertical position under the constraint of the traveling track, then moves horizontally, and then swings back from a vertical to a horizontal position. This allows the moving cam to drive the latching mechanism and the workpiece to rotate a full circle, completing a circumferential sewing operation. In this application, the coordination of various mechanisms ensures that the workpiece movement and the sewing machine's piercing action are continuous, preventing movement during needle piercing that could lead to needle breakage. It also solves the efficiency problem associated with manual sewing. Attached Figure Description

[0013] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0014] Figure 1 This is a side view of the sewing device in an embodiment of this application;

[0015] Figure 2 yes Figure 1 AA view;

[0016] Figure 3 This is a structural diagram of the sewing device in the embodiments of this application;

[0017] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0018] Figure 5 This is a schematic diagram of the guide rail block and the traveling wheel assembly;

[0019] Figure 6 This is a schematic diagram of the locking mechanism and the wheel assembly;

[0020] Figure 7 This is a partial schematic diagram of the sewing device in an embodiment of this application;

[0021] Figure 8 This is a schematic diagram of the sewing device in the embodiments of this application after some parts have been hidden;

[0022] Figure 9 yes Figure 8 Enlarged view of point B in the middle;

[0023] Figure 10 This is a side view of the second moving mechanism and the retrieval mechanism;

[0024] Figure 11 yes Figure 10 BB view;

[0025] Figure 12 This is a schematic diagram of the workpieces to be sewn together;

[0026] Figure 13 This is a schematic diagram of the retrieval mechanism;

[0027] Figure 14 This is a schematic diagram of the structure of the retrieval mechanism after the retrieval block is hidden;

[0028] Figure 15 This is a schematic diagram of the support structure;

[0029] Figure 16 yes Figure 11 Enlarged view of point C in the middle;

[0030] Figure 17 This is a top view of the sewing device in an embodiment of this application;

[0031] Figure 18 This is a diagram showing the process of the movable cam moving on the track.

[0032] The annotations in the attached figures are explained as follows:

[0033] 1. Main frame;

[0034] 2. First moving mechanism; 21. Guide rail block; 211. Traveling track; 211a. First section of track; 211b. Second section of track; 212. Mounting support; 22. Traveling wheel assembly; 221. Traveling wheel; 222. Connecting rod; 223. First locking part; 23. Position sensor; 23a. First position sensor; 23b. Second position sensor; 24. Sliding bearing;

[0035] 3. Locking mechanism; 31. First telescopic drive component; 32. Second locking part; 32a. Locking hole; 33. Guide plate; 33a. Guide groove;

[0036] 4. Second moving mechanism; 41. Moving cam; 411. Sliding guide groove; 42. Second telescopic drive component; 5. Snatching mechanism; 5a. Top support channel; 5b. Exit position; 51. Snatching block; 52. Top support block; 53. Third telescopic drive component; 54. Support plate; 541. Mounting part; 542. Arc-shaped transition part; 543. Contact part; 55. Spring; 56. Sliding column; 57. Friction plate; 58. Mounting plate; 59. Guide cylinder; 6. Linkage mechanism; 61. First drive shaft; 62. Second drive shaft; 63. Drive gear; 64. First pulley; 65. Second pulley; 66. Transmission belt; 67. Third drive shaft; 68. Ratchet; 69. Ratchet tooth;

[0037] 7. First workpiece;

[0038] 8. Second workpiece;

[0039] 9. Sewing machine; 9a. Working range of a sewing machine. Detailed Implementation

[0040] The features and exemplary embodiments of various aspects of this application will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain this application and not to limit it. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0042] like Figures 1 to 4 As shown in the figure, this application discloses a sewing device, including a main frame 1, a first moving mechanism 2, a locking mechanism 3, a second moving mechanism 4, a looping mechanism 5, and a linkage mechanism 6;

[0043] like Figure 1and Figure 2 As shown, the directions of the embodiments of this application are first defined as follows: the first horizontal direction refers to the horizontal longitudinal direction, the second horizontal direction is specified as the horizontal transverse direction, and the first horizontal direction and the second horizontal direction intersect perpendicularly in the horizontal plane.

[0044] like Figure 3 As shown, the main frame 1 is fixedly installed on the ground or working surface for supporting and installing various components.

[0045] like Figure 5 As shown, the first moving mechanism 2 includes a guide rail block 21 and two walking wheel assemblies 22;

[0046] like Figure 5 As shown, the guide block 21 is a closed semi-circular ring. The lower end of the guide block 21 is fixedly installed on the main frame 1 by a vertical support column. The guide block 21 has recessed walking tracks 211 on both sides in the second horizontal direction. The trajectory of the walking track 211 is set along the length direction of the guide block 21. That is, the walking track 211 includes a first track 211a and a second track 211b. The length direction of the first track 211a is a semi-circular arc (that is, the trajectory of the first track 211a is a semi-circular arc). The length direction of the second track 211b is the first horizontal direction. The first track 211a and the second track 211b are smoothly connected.

[0047] Among them, such as Figure 5 As shown, the upper end of the guide rail block 21 is provided with a mounting bracket 212 for mounting the second drive shaft 62, and the second drive shaft 62 passes through the mounting bracket 212 along the second horizontal direction.

[0048] like Figure 5 As shown, there are two walking wheel assemblies 22, both of which are mounted on the guide rail block 21 and can travel along the trajectory of the walking track 211.

[0049] like Figure 6 As shown, the traveling wheel assembly 22 includes a traveling wheel 221, a connecting rod 222, and a first locking part 223. The traveling wheel 221 is rotatably disposed within the traveling track 211 and can travel along the trajectory of the traveling track 211. The connecting rod 222 is rotatably connected to the end face of the traveling wheel 221. The first locking part 223 is connected to the traveling rod and is located on one side of the guide rail block 21 (one side along the second horizontal direction). The distance between the two traveling wheel assemblies 22 (specifically, the axial distance between the two connecting rods 222) is equal to the radius of the second track segment 211b (arc track).

[0050] Preferably, the walking wheel assembly 22 includes two walking wheels 221, both of which are rotatably connected to the connecting rod 222. The two walking wheels 221 are respectively located within two walking tracks 211 on both sides of the guide block 21, with the guide block 21 positioned between the end faces of the two walking wheels 221. In this embodiment, by providing walking tracks 211 on both sides of the guide block 21 to cooperate with each walking wheel 221, the stability of the structure can be increased, and the walking wheel assembly 22 can be prevented from detaching from the guide block 21.

[0051] Preferred, such as Figure 5 As shown, multiple position sensors 23 (e.g., laser sensors) are provided on one side of the guide block 21. The position sensors 23 are used to sense the positions of the connecting rod 222 and the moving cam 41 on the guide block 21. In this embodiment, at least two position sensors 23 are provided. The first position sensor 23a is disposed opposite to the locking mechanism 3 in the second horizontal direction, and the second position sensor 23b is disposed at the lower right of the guide block 21 (specifically, the lower right of the second horizontal direction view).

[0052] like Figure 6 As shown, the locking mechanism 3 includes a first telescopic drive member 31 and a second locking part 32. The first telescopic drive member 31 can be an electric push rod, a telescopic cylinder, etc. One axial end of the first telescopic drive member 31 is mounted on the main frame 1, and the other axial end is connected to the second locking part 32. The telescopic direction of the first telescopic drive member 31 is configured as a second horizontal direction. The first telescopic drive member 31 can drive the second locking part 32 to lock together with the first locking part 223, or drive the second locking part 32 to lock together with the first locking part 223. 3. Disengagement from the locked state: The second locking part 32 is provided with a locking hole 32a (through hole). Under the extension and retraction of the first telescopic drive member 31, the second locking part 32 can move and be sleeved on the outer periphery of the first locking part 223. The inner peripheral wall of the locking hole 32a can restrict the movement of the first locking part 223 in the first horizontal direction. When the first telescopic drive member 31 retracts, the locking hole 32a disengages from the first locking part 223. At this time, the first locking part 223 can move along the length direction of the travel track 211.

[0053] In this embodiment of the application, the locking mechanism 3 is designed to cooperate with the first locking part 223 of a walking wheel assembly 22, so as to fix one end of the moving cam 41, so that the moving cam 41 can swing along the trajectory of the walking track 211 with the restricted end as the rotation point.

[0054] Preferred, such as Figure 7As shown, the locking mechanism 3 also includes a guide plate 33, which is fixedly mounted on the main frame 1. The guide plate 33 has a guide groove 33a, the length of which is aligned with the extension / retraction direction of the first telescopic drive member 31. At least a portion of the second locking part 32 is disposed within the guide groove 33a. This embodiment of the application guides the second locking part 32 via the guide groove 33a, ensuring the movement accuracy of the second locking part 32.

[0055] The second moving mechanism 4 includes a moving cam 41 and a second telescopic drive member 42, specifically as follows: Figures 8 to 11 As shown;

[0056] like Figure 8 and Figure 9 As shown, the movable cam 41 is disposed on one side of the guide block 21 along the second horizontal direction. The outer periphery of the movable cam 41 is square (the four corners of the square are provided with rounded chamfers). The outer periphery of the movable cam 41 is provided with a tooth structure (not shown). The drive gear 63 meshes with the tooth structure of the movable cam 41. The drive gear 63 can drive the movable cam 41 to swing.

[0057] like Figure 9 As shown, the back side of the movable cam 41 is provided with a sliding guide groove 411, and the connecting rod 222 of the traveling wheel assembly 22 has an extension section along the second horizontal direction. The end of the extension section is disposed in the sliding guide groove 411. In some embodiments, the outer diameter of the extension section matches the inner width of the sliding guide groove 411 (for example, the inner width is 1.05-1.2 times the outer diameter). The length direction of the sliding guide groove 411 intersects perpendicularly with the axial direction of the connecting rod 222.

[0058] In the embodiments of this application, such as Figure 9 As shown, the back side of the movable cam 41 is provided with two sliding guide grooves 411, which respectively cooperate with the connecting rods 222 of the two traveling wheel assemblies 22. Please refer again to... Figure 6 A sliding bearing 24 is coaxially mounted at the end of the extension of the connecting rod 222. The sliding bearing 24 is located within the sliding guide groove 411, and its outer circumference can roll in contact with the inner circumferential wall of the sliding guide groove 411. It should be noted that the outer diameter of the sliding bearing 24 matches the inner width of the sliding guide groove 411 (for example, the inner width is 1.05-1.2 times the outer diameter of the sliding bearing).

[0059] In this embodiment, the sliding bearing 24 enables the connecting rod 222 and the moving cam 41 to rotate relative to each other. The sliding bearing 24 can also slide within the sliding guide groove 411 (sliding along the length of the sliding guide groove 411), which facilitates the circumferential swing of the moving cam 41 and prevents the mechanism from jamming.

[0060] like Figure 10 and Figure 11 As shown, the second telescopic drive member 42 is located on the side of the moving cam 41 away from the guide block 21, and one end (fixed end) of the second telescopic drive member 42 is connected to the end face of the moving cam 41, and the other end (telescopic end) is connected to the taking-up mechanism 5 (specifically the taking-up block 51). The telescopic direction of the second telescopic drive member 42 is configured as a second horizontal direction. There are two second telescopic drive members 42, and both second telescopic drive members 42 are arranged between the moving cam 41 and the taking-up mechanism 5. The second telescopic drive member 42 can be an electric push rod, a telescopic cylinder, etc. In this embodiment, the second telescopic drive member 42 can drive the taking-up mechanism 5 and the workpiece on the taking-up mechanism 5 to move toward the sewing machine 9, thereby transporting the workpiece to the working range of the sewing machine 9 for sewing. After the sewing is completed, the second telescopic drive member 42 drives the taking-up mechanism 5 to retract, so that there is a certain working space between the taking-up mechanism 5 and the sewing machine 9, which facilitates the removal of the sewn workpiece and the insertion of a new workpiece.

[0061] The sleeve-mounting mechanism 5 is used to mount the workpiece to be processed, such as... Figure 12 As shown, the workpiece to be processed in this embodiment of the application includes a first workpiece 7 and a second workpiece 8. The first workpiece 7 is configured as a zipper, and the second workpiece 8 is configured as a bag. The zipper and the bag are sewn together by a sewing machine 9.

[0062] like Figure 11 and Figure 13 As shown, the sleeve mechanism 5 includes a sleeve block 51, a top support block 52, a third telescopic drive member 53, and multiple support plates 54.

[0063] The take-up block 51 is disposed between the sewing machine 9 and the moving cam 41. The side of the take-up block 51 facing away from the sewing machine 9 is connected to the telescopic end of the second telescopic drive member 42. The side of the take-up block 51 facing the sewing machine 9 has a recessed support channel 5a, and the depth direction of the support channel 5a is configured as the second horizontal direction.

[0064] The top support block 52 is movably disposed within the top support channel 5a, and the top support block 52 can move within the top support channel 5a (moving along the second horizontal direction).

[0065] One end of the third telescopic drive member 53 is disposed on the inner wall of the top support channel 5a, and the other end (telescopic end) is connected to the top support block 52. The telescopic direction of the third telescopic drive member 53 is configured as the second horizontal direction. The third telescopic drive member 53 can drive the top support block 52 to move within the top support channel 5a. The third telescopic drive member 53 can be an electric push rod, a telescopic cylinder, etc.

[0066] like Figure 13 and Figure 14As shown, there are multiple support pieces 54, one end of each support piece 54 is disposed on the sleeve block 51, and multiple support pieces 54 are arranged around the outlet position 5b of the top support channel 5a.

[0067] When the first workpiece 7 and the second workpiece 8 need to be installed, the first workpiece 7 is first placed on the outer periphery of the multiple support pieces 54. Then, the third telescopic drive member 53 drives the top support block 52 to move toward the outlet position 5b of the top support channel 5a. The inner periphery of the multiple support pieces 54 abuts against the outer periphery of the top support block 52. The top support block 52 pushes the multiple support pieces 54 outward and expands the multiple support pieces 54 outward, thereby opening the first workpiece 7 (zipper). At the same time, the expansion of the multiple support pieces 54 provides space for the second workpiece 8 (bag) to be inserted between the multiple support pieces 54. The bag can be easily inserted between the inner peripheries of the multiple support pieces 54. Then, the third telescopic drive member 53 drives the top support block 52 to retract inward, so that the support pieces 54 are reset and clamp the second workpiece 8. At this time, the first workpiece 7 is placed on the outer periphery of the multiple support pieces 54, while the second workpiece 8 is clamped between the inner peripheries of the multiple support pieces 54.

[0068] Preferably, the material of the support plate 54 is a material with a certain elastic deformation capability, such as elastic metal or non-metal materials, such as spring steel, alloys, etc.

[0069] The number of support plates 54 is at least four (four support plates 54 are illustrated in this embodiment), please refer to... Figure 13 and Figure 14 The four support plates 54 are respectively set at the exit position 5b of the top support channel 5a, specifically at the four corners of the exit position 5b.

[0070] like Figure 15 As shown, the support plate 54 includes a mounting part 541, an arc-shaped transition part 542, and a contact part 543 connected sequentially along the second horizontal direction. The mounting part 541 is connected to the inner wall of the outlet position 5b of the top support channel 5a. The arc-shaped transition part 542 is used for the transition connection between the mounting part 541 and the contact part 543. The contact part 543 is located on the outside of the top support channel 5a. Under the support action of the top support block 52, the contact part 543 can expand outward to facilitate the installation of the first workpiece 7 and the second workpiece 8.

[0071] Along the second horizontal direction, the projection of the mounting part 541 does not overlap with the projection of the top support block 52; the projection of the contact part 543 at least partially overlaps with the projection of the top support block 52. The purpose of this design is that when the top support block 52 moves, the mounting part 541 will not obstruct the movement of the top support block 52, and it can ensure that the top support block 52 can abut against the contact part 543, thereby expanding the contact parts 543 at the four corners outwards.

[0072] Preferred, such as Figure 14 and Figure 15 As shown, the sleeve mechanism 5 also includes springs 55 corresponding to the support plates 54 one-to-one. A sliding post 56 is provided on the mounting portion 541 of the support plate 54. Mounting pieces 58 are provided at each of the four corners of the top support channel 5a, and guide cylinders 59 are provided on the mounting pieces 58. The sliding post 56 is coaxially and slidably disposed within the guide cylinder 59. The axial ends of the spring 55 are respectively connected to the end face of the sliding post 56 and the inner wall of the sleeve block 51. The spring 55 can provide a force to the support plate 54 to move towards the axis of the top support channel 5a. In this embodiment, the axial direction of the spring 55 and the sliding direction of the sliding post 56 are both perpendicular to the axis of the top support channel 5a.

[0073] Preferred, such as Figure 14 and Figure 16 As shown, the sleeve mechanism 5 also includes friction plates 57 that correspond one-to-one with the support plates 54. The friction plates 57 are disposed on the inner periphery of the contact portion 543. When installing the second workpiece 8, the second workpiece 8 can be installed in the space between the contact portion 543 and the friction plates 57.

[0074] like Figure 16 As shown in this embodiment, along the second horizontal direction, the distance from the friction piece 57 to the end face of the contact portion 543 (e.g.) Figure 16 As shown in D1, the width of the second workpiece 8 is smaller than that of the second workpiece 8 (e.g. Figure 16 As shown in D2), this makes the edge of the second workpiece 8 extend beyond the front end of the support piece 54, which facilitates sewing by the sewing machine 9 and prevents the support piece 54 from colliding with the sewing needle.

[0075] like Figure 17 As shown, the linkage mechanism 6 includes a first drive shaft 61, a second drive shaft 62, a drive gear 63, and a transmission mechanism; the first drive shaft 61 and the second drive shaft 62 are connected by the transmission mechanism.

[0076] The transmission mechanism includes a first pulley 64, a second pulley 65, a transmission belt 66, a third drive shaft 67, a ratchet 68, and a ratchet tooth 69. The first pulley 64 is coaxially fixed to the first drive shaft 61, and the second pulley 65 is coaxially fixed to the third drive shaft 67. The third drive shaft 67 is rotatably mounted on the main frame 1. The first pulley 64 and the second pulley 65 are connected by the transmission belt 66. The ratchet 68 is coaxially fixed to the second drive shaft 62, and the ratchet tooth 69 is fixed to the third drive shaft 67, with the ratchet 68 meshing with the ratchet tooth 69. In this embodiment, the cooperation between the ratchet tooth 69 and the ratchet 68 enables efficient transmission and also has a self-locking function.

[0077] The first drive shaft 61 is connected to the main shaft of the sewing machine 9 (transmission connection). When the sewing machine 9 is working, the sewing machine 9 can synchronously drive the first drive shaft 61 to rotate.

[0078] One way in which the sewing device of this application operates is as follows:

[0079] First, the second telescopic drive 42 drives the looping mechanism 5 away from the sewing machine 9, and then a robotic arm (or in some cases a human hand) is used to loop the first workpiece 7 (zipper) onto the contact portion 543 of the four support pieces 54. Then, the third telescopic drive 53 drives the top support block 52 to move toward the support piece 54. After the outer periphery of the top support block 52 abuts against the contact portion 543 of the support piece 54, due to the continuous extension of the third telescopic drive 53, the support pieces 54 (specifically the contact portion 543) at the four corners of the top support channel 5a are pushed and expanded in all directions by the top support block 52, thereby causing the first workpiece (zipper) to be opened.

[0080] 2. The robotic arm (not shown) inserts the second workpiece 8 (bag) between the inner circumferences of the four support plates 54. Then the third telescopic drive 53 retracts. When the top support block 52 moves backward, the spring 55 resets the support plates 54 to achieve inward contraction, so that the first workpiece (zipper) can be stacked on the outer surface of the second workpiece (bag).

[0081] III. Figure 17 As shown, the second telescopic drive member 42 drives the take-up mechanism 5 to move toward the sewing machine 9, so that the overlapping part of the first workpiece (zipper) and the second workpiece (bag) is located within the working range 9a of the sewing machine 9. Then the sewing machine 9 starts to sew the overlapping part. While working, the sewing machine 9 drives the first drive shaft 61 of the linkage mechanism 6 to rotate.

[0082] Fourth, the first drive shaft 61 drives the first pulley 64 to rotate, the first pulley 64 and the second pulley 65 drive the third drive shaft 67 to rotate, the ratchet 69 on the third drive shaft 67 pushes the ratchet 68 on the second drive shaft 62 to rotate, thereby causing the drive gear 63 on the end of the second drive shaft 62 to drive the moving cam 41 to rotate.

[0083] 5. When the moving cam 41 rotates, it will drive the sleeve mechanism 5 and the first workpiece 7 and the second workpiece 8 on the sleeve mechanism 5 to rotate, so as to achieve circumferential stitching.

[0084] The circumferential suturing process is as follows:

[0085] First, the moving cam 41 translates along the first horizontal direction. When the first position sensor 23a on the guide block 21 senses the connecting rod 222 of a left-side traveling wheel assembly 22, the first telescopic drive member 31 drives the second locking part 32 to move along the second horizontal direction, causing the second locking part 32 to be fitted onto the outer periphery of the first locking part 223, thereby restricting the movement of the traveling wheel assembly 22. Figure 18 As shown in (a) to (b), the dashed box in (b) indicates the locking position;

[0086] Because the traveling wheel assembly 22 is restricted, and the drive gear 63 continuously drives the moving cam 41, the moving cam 41 swings around the traveling wheel assembly 22 as its center of rotation. The other traveling wheel assembly 22 drives the moving cam 41 to swing (circularly) along the trajectory of the traveling track 211. Figure 18 As shown in (b) to (c);

[0087] Next, when the moving cam 41 swings to a vertical or near-vertical position, the second position sensor 23b can sense the position of the moving cam 41. After the second position sensor 23b senses the boundary of the moving cam 41, the moving cam 41 moves a certain distance (to the right) along the first horizontal direction. Then, the first telescopic drive member 31 drives the second locking part 32 to retract, causing the second locking part 32 to release its locking effect on the first locking part 223. Figure 18 As shown in (c) to (d),

[0088] Then, the drive gear 63 continuously drives the moving cam 41, causing the lower traveling wheel assembly 22 to continue traveling along the first section 211a of the traveling track 211 until the moving cam 41 is aligned to a horizontal state and travels a certain distance along the first horizontal direction within the second section 211b, such as... Figure 18 As shown in (d) to (e);

[0089] At this point, the moving cam 41 completes one full rotation, and the circumferential stitching of the workpiece is finished. The second telescopic drive 42 then drives the sleeve removal block 51 to retract, removing the stitched workpiece.

[0090] The above description is merely a specific implementation of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. A sewing device, characterized in that, include: Main frame (1); The first moving mechanism (2) includes a guide rail block (21) and two walking wheel assemblies (22); The guide block (21) is set on the main frame (1), and the guide block (21) is provided with a walking track (211). The walking track (211) includes a first track (211a) and a second track (211b) along its length direction. The length direction of the first track (211a) is arc-shaped, and the length direction of the second track (211b) is a first horizontal direction. The walking wheel assembly (22) includes a walking wheel (221), a connecting rod (222), and a first locking part (223); the walking wheel (221) is disposed in the walking track (211); the connecting rod (222) is connected to the walking wheel (221); the first locking part (223) is disposed on the connecting rod (222); The locking mechanism (3) includes a first telescopic drive member (31) and a second locking part (32). One end of the first telescopic drive member (31) is disposed on the main frame (1), and the other end is connected to the second locking part (32). The second locking part (32) can lock and cooperate with the first locking part (223) under the drive of the first telescopic drive member (31). The second moving mechanism (4) includes a moving cam (41) and a second telescopic drive member (42); one side of the moving cam (41) is provided with a sliding guide groove (411) corresponding to the connecting rod (222), and the length direction of the sliding guide groove (411) is perpendicular to the axis of the connecting rod (222); one end of the connecting rod (222) is disposed in the sliding guide groove (411); one end of the second telescopic drive member (42) is disposed on the moving cam (41); The sleeve mechanism (5) is provided with a workpiece to be processed, and the sleeve mechanism (5) is connected to the other end of the second telescopic drive member (42); The linkage mechanism (6) includes a first drive shaft (61), a second drive shaft (62), and a drive gear (63); the first drive shaft (61) is rotatably mounted on the main frame (1) and is connected to an external sewing machine (9); the second drive shaft (62) is connected to the first drive shaft (61) in a transmission manner; the drive gear (63) is mounted on the second drive shaft (62) and is meshed with a moving cam (41).

2. The sewing device according to claim 1, characterized in that, The guide rail block (21) is equipped with multiple position sensors (23) for sensing the position of the walking wheel assembly (22).

3. The sewing device according to claim 2, characterized in that, The guide block (21) has walking tracks (211) on both sides in the thickness direction, and the walking wheel assembly (22) includes two walking wheels (221) respectively set in the two walking tracks (211).

4. The sewing device according to claim 1, characterized in that, The second locking part (32) of the locking mechanism (3) is provided with a locking hole (32a), which can be fitted onto the outer periphery of a certain first locking part (223).

5. The sewing device according to claim 1, characterized in that, A sliding bearing (24) is provided on one end of the connecting rod (222); the sliding bearing (24) is disposed in the sliding guide groove (411), and the outer periphery of the sliding bearing (24) can roll contact with the inner peripheral wall of the sliding guide groove (411).

6. The sewing device according to any one of claims 1-5, characterized in that, The snatching mechanism (5) includes a snatching block (51), a top support block (52), a third telescopic drive member (53), and multiple support plates (54). The take-up block (51) is provided with a top support channel (5a) facing the sewing machine (9); the top support block (52) is movably disposed in the top support channel (5a); the two ends of the third telescopic drive member (53) are respectively connected to the top support block (52) and the take-up block (51); a plurality of support pieces (54) are disposed at the outlet position (5b) of the top support channel (5a), and the top support block (52) can open the plurality of support pieces (54); wherein, the workpiece includes a first workpiece (7) and a second workpiece (8), the first workpiece (7) is sleeved on the outer periphery of the plurality of support pieces (54), and the second workpiece (8) is disposed in the inner periphery of the plurality of support pieces (54).

7. The sewing device according to claim 6, characterized in that, The number of the support plates (54) is at least four, and the four support plates (54) are respectively arranged at the four corners of the top support channel (5a); The support plate (54) includes a mounting portion (541), an arc-shaped transition portion (542), and a contact portion (543) connected sequentially along a second horizontal direction; the mounting portion (541) is located at the outlet position (5b) of the top support channel (5a); in the second horizontal direction, the projection of the mounting portion (541) does not overlap with the projection of the top support block (52); the projection of the contact portion (543) overlaps at least partially with the projection of the top support block (52); the first workpiece (7) and the second workpiece (8) are respectively disposed on the outer periphery and inner periphery of the contact portion (543).

8. The sewing device according to claim 7, characterized in that, The retrieval mechanism (5) also includes a spring (55); the mounting part (541) is slidably mounted on the retrieval block (51) via a sliding column (56), and the two ends of the spring (55) are respectively connected to the sliding column (56) and the retrieval block (51), and the axial direction of the spring (55) and the sliding direction of the sliding column (56) are perpendicular to the axis of the top support channel (5a).

9. The sewing device according to claim 7, characterized in that, The sleeve mechanism (5) further includes friction plates (57); the friction plates (57) are arranged one-to-one on the inner periphery of the contact portion (543), and along the second horizontal direction, the distance between the friction plates (57) and the end face of the contact portion (543) is less than the width of the second workpiece (8).

10. The sewing device according to claim 1, characterized in that, The first drive shaft (61) and the second drive shaft (62) are connected by a transmission mechanism; the transmission mechanism includes a first pulley (64), a second pulley (65), a transmission belt (66), a third drive shaft (67), a ratchet (68), and a ratchet tooth (69). The first pulley (64) is mounted on the first drive shaft (61), and the second pulley (65) is mounted on the third drive shaft (67); the third drive shaft (67) is rotatably mounted on the main frame (1); the ratchet (69) is mounted on the third drive shaft (67), and the ratchet (69) meshes with the ratchet (68); the ratchet (68) is mounted on the second drive shaft (62).

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