Curve suture device

Abstract

The present invention relates to the technical field of sewing machines, and in particular to a curve sewing device for sewing small pieces of cloth and large pieces of cloth together, comprising a frame, a conveying assembly, a small piece bending assembly and a clamping and transferring assembly, wherein the clamping and transferring assembly is used to fix the small pieces of cloth and the large piece of cloth to each other and move the cloth to a sewing position for sewing, the conveying assembly has a function for reciprocating the clamping and transferring assembly and making the cloth move in a curve, the conveying assembly includes a curve backing mold inside, one side of the curve backing mold is set to a curved shape, the clamping and transferring assembly includes a support plate, and the support plate is slidably connected to the conveying assembly through a slide rail, the backing wheel in the clamping and transferring assembly of the present invention, after the backing wheel moves on the curve backing mold, the second moving plate reciprocates, thereby making the butted cloth move in a curve, and when the cloth moves to the sewing assembly, the sewing assembly automatically sews the cloth in a curve.

Description

Technical Field

[0001] The invention relates to the technical field of sewing machines, in particular to a curve sewing device. Background Art

[0002] With the rapid development of the garment manufacturing industry, the demand for sewing equipment is increasing, especially for those equipment that can complete complex sewing tasks efficiently and accurately. Traditional sewing machines can only sew a single straight line. For the sewing of curves, manual operation or other auxiliary tools are usually required, which greatly reduces production efficiency, increases labor costs, and makes it difficult to ensure the stability of sewing quality. In recent years, although some sewing machines that can sew curves have appeared on the market, when processing curves, they often need to be adjusted multiple times to complete the sewing, but the structure is also more complicated and the operation is more troublesome. In view of these problems, it is necessary to develop a sewing machine that can sew curves efficiently and accurately to ensure the quality and precision of sewing. Summary of the invention

[0003] Technical issues to be solved

[0004] The present invention is aimed at the above-mentioned defects existing in the prior art, and specifically proposes a curve sewing device to solve the problems mentioned in the above background technology that the existing sewing machines for curve sewing usually require manual operation or the use of other auxiliary tools, resulting in low production efficiency, low stability of sewing quality and high labor costs.

[0005] Technical Solution

[0006] In order to solve the above technical problems, the present invention provides a curved suturing device, comprising a frame, a first workbench and a second workbench arranged on both sides of the frame, a conveying assembly located between the first workbench and the second workbench, and a suturing assembly located on one side of the conveying assembly and used for suturing;

[0007] The first workbench is used for the transfer and alignment of small materials; the second workbench is used for the transfer and alignment of large materials;

[0008] A small material bending assembly and a bending displacement assembly are also provided between the first workbench and the second workbench; the small material bending assembly is used to bend the small material of the cloth, and the bending displacement assembly is used to clamp the bent small material and move it to the upper part of the large material;

[0009] The conveying assembly includes a clamping and transferring assembly and a conveying guide rail matched with the clamping and transferring assembly; the clamping and transferring assembly is used to clamp small materials and large materials and transfer them to the sewing assembly for sewing;

[0010] A curve mold is arranged on the conveying guide rail, and the position of the curve mold corresponds to the suturing component. The curve mold enables the clamping and transferring component to perform a curve movement at the suturing component to realize curve suturing.

[0011] Wherein, the first workbench includes a small material lifting workbench, a small material moving component and a small material edge alignment component;

[0012] The small material lifting workbench is used to store small materials and drive them to move in the vertical direction. The small material moving assembly is used to pick up small materials and move them to the position of the small material edge alignment assembly. The small material edge alignment assembly is used to perform edge alignment operations on small materials before bending.

[0013] The second workbench includes a large material lifting workbench, a large material moving assembly, and a large material edge alignment assembly;

[0014] The large material lifting workbench is used to store large materials and drive the large materials to move in the vertical direction. The large material moving assembly is used to pick up large materials and move them to the position of the large material edge alignment assembly. The large material edge alignment assembly is used to perform edge alignment operations on large materials.

[0015] Among them, the small material lifting workbench and the large material lifting workbench are equipped with limit baffles and limit switches.

[0016] The limit baffle is provided with a waist-shaped hole for fixing, the limit baffle is used to limit the small material or the large material, and the limit switch is used to control the movement height of the small material lifting workbench or the large material lifting workbench;

[0017] Both the small material lifting table and the large material lifting table are driven by cylinders.

[0018] The small material moving assembly and the large material moving assembly are both provided with a moving truss, and a moving suction cup arranged on the moving truss for absorbing small or large materials.

[0019] The material transfer truss is driven by cylinders to move in horizontal and vertical directions.

[0020] Wherein, the small material side assembly and the large material side assembly are respectively provided with two groups, and each group of the small material side assembly and the large material side assembly includes a first pair of side baffles and a corresponding first pair of side cylinders capable of driving the first pair of side baffles to move horizontally along the X-axis direction, and a second pair of side baffles and a corresponding second pair of side cylinders capable of driving the second pair of side baffles to move horizontally along the Y-axis direction;

[0021] The small or large material is moved to a predetermined position by the cooperation of the first pair of side baffles and the second pair of side baffles.

[0022] Among them, the small material bending assembly includes a bending plate and a bending pressure plate;

[0023] The edge of the bending plate is in a curved shape, and the first cylinder drives the bending plate to move downward along the Z axis direction so that the extended part of the small material can be bent in a curved shape;

[0024] The bending pressing plate is used to press and fix the small material to be bent after the small material opposite edge assembly is completed, and the bending pressing plate can be driven to move up and down along the Z axis direction by the second cylinder;

[0025] The edge of the small material opposite edge component, which is used to place the small material to be bent after the opposite edge is in a curved shape that can complement the edge of the bending plate.

[0026] The bending displacement component includes a lateral movement component, a longitudinal movement component and a displacement clamping end.

[0027] The lateral moving assembly is used to drive the displacement clamping end to reciprocate along the Y-axis direction, and the longitudinal moving assembly is used to drive the displacement clamping end to reciprocate along the Z-axis direction;

[0028] The displacement clamping end includes a lateral adjustment component, an upper fixed plate, a longitudinal adjustment component and a first movable plate;

[0029] The upper fixed plate is fixedly connected to the transverse adjustment component, and a longitudinal adjustment component is also provided on the upper fixed plate, and a first movable plate is provided at the lower end of the longitudinal adjustment component. The first movable plate is driven to move longitudinally by the longitudinal adjustment component so as to cooperate with the upper fixed plate to clamp small materials, and the clamping end edges of the upper fixed plate and the first movable plate are curved.

[0030] The clamping and transferring assembly includes a support plate, a second movable plate disposed on the upper portion of the support plate and capable of reciprocating along the Y-axis direction on the support plate, and a suture clamping end disposed on the second movable plate and extending outward;

[0031] The support plate is used for sliding connection with the conveying guide rail, and the sewing clamping end is used for clamping small and large materials.

[0032] The bottom of the second movable plate is also provided with a downwardly extending support wheel, which can roll against the curved support mold.

[0033] A tension spring is provided between the second moving plate and the supporting plate. When the clamping and transferring assembly moves along the curved template on the conveying guide rail and performs stitching, the elastic force of the tension spring causes the supporting wheel to maintain contact with the curved template, that is, the movement trajectory of the clamping and transferring assembly in the Y-axis direction is aligned with the curved template.

[0034] The curved profile provides a compensating movement in the Y-axis direction to the clamping and transferring assembly, thereby realizing curved suturing without the suturing assembly moving.

[0035] The suture clamping end includes a clamping plate and a piano key type clamping plate located on the upper part of the clamping plate, and clamping is achieved by the cooperation between the piano key type clamping plate and the clamping plate;

[0036] The piano key type clamping plate realizes multi-stage clamping by dividing the clamping part into multiple sections.

[0037] Beneficial Effects

[0038] Compared with the prior art, the curve sewing device of the present invention is that after a small piece of cloth is bent by a small piece of cloth bending assembly, the bending displacement assembly moves the bent small piece of cloth to the large piece of cloth for docking, and then the conveying assembly moves the clamping and transferring assembly to the docked cloth, and then the docked cloth is clamped and fixed by relative movement of the piano key clamp and the clamping plate, and then the clamping and transferring assembly is moved by the conveying assembly. Since a curve mold is provided on the conveying assembly, the clamping and transferring assembly has a supporting wheel, and after the supporting wheel moves on the curve mold, the second moving plate moves back and forth, thereby causing the docked cloth to move in a curve. When the cloth moves to the sewing assembly, the sewing assembly automatically sews the cloth in a curve, and the sewing quality is stable and the sewing efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0040] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ;

[0041] Figure 3 This is a schematic diagram of the first workbench structure of the present invention. Figure 1 ;

[0042] Figure 4 This is a schematic diagram of the first workbench structure of the present invention. Figure 2 ;

[0043] Figure 5 This is a schematic diagram of the structure of the first workbench of the present invention in a front view direction;

[0044] Figure 6 It is a schematic diagram of the structure of the first workbench of the present invention in a top view;

[0045] Figure 7 It is a schematic diagram of the bending plate structure of the present invention;

[0046] Figure 8 It is a schematic diagram of the structure of the second workbench of the present invention;

[0047] Fig. 9 is a schematic structural diagram of a second pair of side baffles of the present invention;

[0048] Fig.10 The structure diagram of the bending displacement assembly of the present invention is shown in FIG. Figure 1 ;

[0049] Fig.11 The structure diagram of the bending displacement assembly of the present invention is shown in FIG. Figure 2 ;

[0050] Fig.12 The structure diagram of the bending displacement assembly of the present invention is shown in FIG. Figure 3 ;

[0051] Fig.13 It is a schematic diagram of the structure of the conveying assembly and the suturing assembly of the present invention;

[0052] Fig.14 It is a structural schematic diagram of the conveying assembly of the present invention;

[0053] Fig.15 The structure diagram of the clamping and transferring assembly of the present invention is shown in FIG. Figure 1 ;

[0054] Fig.16 The structure diagram of the clamping and transferring assembly of the present invention is shown in FIG. Figure 2 ;

[0055] Fig.17 The structure diagram of the clamping and transferring assembly of the present invention is shown in FIG. Figure 3 ;

[0056] Fig.18 It is a bottom view structural schematic diagram of the clamping and transferring assembly and the curve profiling of the present invention;

[0057] In the figure:

[0058] 1 is a rack;

[0059] 11 is the first workbench; 2 is the small material lifting workbench; 3 is the small material moving assembly; 4 is the small material side assembly;

[0060] 12 is the second workbench; 5 is the large material lifting workbench; 6 is the large material moving assembly; 14 is the large material side-to-side assembly;

[0061] 2a is the limit baffle; 2b is the limit switch;

[0062] 3a is a material transfer truss; 3b is a material transfer suction cup;

[0063] 4a is the first pair of side baffles; 4b is the second pair of side baffles; 4c is the baffle slide;

[0064] 7 is a bending displacement assembly; 701 is a lateral movement assembly; 702 is a longitudinal movement assembly; 703 is a lateral adjustment assembly; 704 is an upper fixed plate; 705 is a longitudinal adjustment assembly; 706 is a first moving plate; 707 is a displacement clamping end;

[0065] 8 is a conveying component;

[0066] 13 is a clamping and transferring assembly; 16 is a suture clamping end; 131 is a second moving plate; 132 is a support plate; 133 is a piano key type clamping plate; 134 is a clamping plate; 135 is a supporting wheel; 135 is a guide rail slider;

[0067] 15 is a conveying guide rail; 801 is a curve template;

[0068] 9 is a suturing component;

[0069] 10 is a small material bending assembly; 101 is a bending plate; 102 is a first cylinder; 103 is a bending pressure plate; 104 is a second cylinder. DETAILED DESCRIPTION

[0070] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0071] Example 1

[0072] like Figure 1 to Figure 9 As shown, the curve sewing device of this embodiment includes a frame 1, a first workbench 11 and a second workbench 12 relatively arranged on both sides of the frame 1, a conveying assembly 8 located between the first workbench 11 and the second workbench 12, and a sewing assembly 9 located on one side of the conveying assembly 8 and used for sewing; the frame 1 serves as a supporting structure of the entire sewing machine to ensure that other components can be stably installed and work, the conveying assembly 8 is responsible for driving the clamping and transferring assembly 13 to move back and forth, so that the cloth can move in a curve during the sewing process, thereby driving the cloth to move along a preset path, and at the same time, the clamping and transferring assembly 13 is responsible for fixing the small cloth and the large cloth together, and moving the cloth as a whole to the sewing position for sewing, and the clamping and transferring assembly 13 ensures the stability and accuracy of the cloth during the movement and sewing process. In this embodiment, the direction indicated by the XYZ axis in this embodiment is as shown in FIG. Figure 1 As shown, the horizontal direction includes the X-axis and the Y-axis, and the vertical direction is the Z-axis.

[0073] like Figure 3~Figure 6As shown, the first workbench 11 is used for the transfer and alignment of small materials; the second workbench 12 is used for the transfer and alignment of large materials; the first workbench 11 and the second workbench 12 have basically the same structure and working principle, and are both used for the transfer and alignment of cloth. In this embodiment, large materials and small materials only refer to two pieces of cloth in the sewing process, and are not used to limit the relative sizes of the two pieces of cloth; specifically, the first workbench 11 includes a small material lifting workbench 2, a small material moving assembly 3 and a small material alignment assembly 4; the small material lifting workbench 2 is used to store small materials and drive the small materials to move in the vertical direction, the small material moving assembly 3 is used to pick up small materials and move the small materials to the position of the small material alignment assembly 4, and the small material alignment assembly 4 is used to align the small materials before bending;

[0074] like Figure 8 , Fig. 9 As shown, the second workbench 12 includes a large material lifting workbench 5, a large material moving assembly 6, and a large material edge alignment assembly 14; the large material lifting workbench 5 is used to store large materials and drive the large materials to move in the vertical direction, the large material moving assembly 6 is used to pick up large materials and move them to the position of the large material edge alignment assembly 14, and the large material edge alignment assembly 14 is used to perform edge alignment operations on the large materials.

[0075] Furthermore, both the small material lifting platform 2 and the large material lifting platform 5 are provided with a limit baffle 2a and a limit switch 2b. The limit baffle 2a is provided with a waist-shaped hole for fixing, and the fixed position can be adjusted according to the size of the cloth during installation. The limit baffle 2a is used to limit small materials or large materials, and the limit switch 2b is used to control the movement height of the small material lifting platform 2 or the large material lifting platform 5. The limit switch 2b adopts a micro switch. After the cloth rises to a certain height, the micro switch will be triggered, and then the corresponding driving device will be directly or indirectly controlled to stop moving through the micro switch; in this embodiment, the small material lifting platform 2 and the large material lifting platform 5 are both driven by cylinders.

[0076] Both the small material moving assembly 3 and the large material moving assembly 6 are provided with a moving truss 3a and a moving suction cup 3b arranged on the moving truss 3a for adsorbing small materials or large materials. The moving truss 3a is driven by a cylinder to move in the horizontal and vertical directions, and there are two or more moving suction cups 3b.

[0077] There are two sets of small material edge-aligning components 4 and large material edge-aligning components 14 respectively. Each set of small material edge-aligning components 4 and large material edge-aligning components 14 includes a first edge baffle 4a and a corresponding first edge cylinder that can drive the first edge baffle 4a to move horizontally along the X-axis direction, and a second edge baffle 4b and a corresponding second edge cylinder that can drive the second edge baffle 4b to move horizontally along the Y-axis direction; through the cooperation of the first edge baffle 4a and the second edge baffle 4b, the small material or large material is moved to a predetermined position, and the stroke of the corresponding edge cylinder is controlled according to the size of the fabric during the edge-aligning process so as to push the fabric to the preset placement position.

[0078] As Fig. 9 shown, the second edge baffle 4b is arranged in a comb tooth structure, and the baffle chute 4c is arranged corresponding to the second edge baffle 4b. This structural design can reduce the occurrence of curling when the baffle pushes the fabric and improve the edge-aligning efficiency.

[0079] As Figure 1 and Figure 2 shown, a small material bending component 10 and a bending displacement component 7 are also arranged between the first workbench 11 and the second workbench 12; the small material bending component 10 is used for bending the small fabric material, and the bending displacement component 7 is used for clamping and moving the bent small material to the upper part of the large material;

[0080] The conveying component 8 includes a clamping and transferring component 13 and a conveying guide rail 15 that cooperates with the clamping and transferring component 13; the clamping and transferring component 13 is used for clamping and transferring the small material and the large material to the sewing component 9 for sewing; a curve profile 801 is arranged on the conveying guide rail 15, and the position of the curve profile 801 corresponds to the sewing component 9. Through the curve profile 801, the clamping and transferring component 13 performs a curve movement at the sewing component 9 to realize curve sewing.

[0081] Specifically, the small material bending component 10 includes a bending plate 101 and a bending pressing plate 103; the vertical cross-section of the bending plate 101 presents a "U" shape, and the edge of the upper part of the bending plate 101 is curved. By driving the bending plate 101 to move downward along the Z-axis direction through the first cylinder 102, the protruding part of the small material can be bent in a curve shape;

[0082] The bending pressure plate 103 is used to press and fix the small material to be bent at the small material opposite edge component 4, so that the small material will not move during bending. The bending pressure plate 103 can be driven to move up and down along the Z-axis direction by the second cylinder 104; the edge of the small material opposite edge component 4 for placing the small material to be bent is a curve that can complement the edge of the bending plate 101. In this embodiment, the curve is designed to be an inward concave arc or an outward convex arc, that is, the edge of the bending plate 101 is an inward concave arc, and the edge of the small material opposite edge component 4 for placing the small material to be bent is a convex arc. The curve stitching in this embodiment is also the arc curve stitching of the small material.

[0083] like Figure 10~Figure 12 As shown, the bending displacement assembly 7 includes a lateral moving assembly 701, a longitudinal moving assembly 702 and a displacement clamping end 707. The lateral moving assembly 701 is used to drive the displacement clamping end 707 to reciprocate along the Y-axis direction, and the longitudinal moving assembly 702 is used to drive the displacement clamping end 707 to reciprocate along the Z-axis direction; the displacement clamping end 707 includes a lateral adjustment assembly 703, an upper fixed plate 704, a longitudinal adjustment assembly 705 and a first movable plate 706;

[0084] The upper fixed plate 704 is fixedly connected to the lateral adjustment component 703, and a longitudinal adjustment component 705 is also provided on the upper fixed plate 704, and a first movable plate 706 is provided at the lower end of the longitudinal adjustment component 705. The first movable plate 706 is driven to move longitudinally by the longitudinal adjustment component 705 so as to cooperate with the upper fixed plate 704 to clamp the small material, and the clamping end edges of the upper fixed plate 704 and the first movable plate 706 are curved, which can better clamp the bent small material, and finally transfer the small material to the upper part of the large material, so that the small material and the large material can be docked.

[0085] Regarding the clamping and transferring assembly 13, Figure 13~Figure 18 As shown, the clamping and transferring assembly 13 includes a supporting plate 132, a second movable plate 131 disposed on the upper portion of the supporting plate 132 and capable of reciprocatingly sliding on the supporting plate 132 along the Y-axis direction, and a suture clamping end 16 disposed on the second movable plate 131 and extending outward, and the supporting plate 132 is driven by a pulley on the conveying guide rail 15;

[0086] The support plate 132 is used for sliding connection with the conveying guide rail 15. Two rows of parallel guide rail sliders 136 are provided at the bottom of the support plate 132, with two guide rail sliders 136 in each row, so as to maintain stable sliding of the support plate 132 on the conveying guide rail 15. The sewing clamping end 16 is used for clamping small and large materials.

[0087] In order to achieve the effect of curve stitching, a downwardly extending support wheel 135 is further provided at the bottom of the second movable plate 131, and the support wheel 135 can roll and abut against the curve support mold 801. Specifically, the curve support mold 801 provides a compensating movement in the Y-axis direction to the clamping and transferring component 13, and the path of the compensating movement can compensate for the aforementioned curve shape, thereby achieving curve stitching without the stitching component 9 moving;

[0088] Furthermore, a tension spring is provided between the second movable plate 131 and the support plate 132. When the clamping and transferring assembly 13 moves along the curved support mold 801 on the conveying guide rail 15 and performs stitching, the elastic force of the tension spring causes the support wheel 135 to maintain contact with the curved support mold 801, that is, the movement trajectory of the clamping and transferring assembly 13 in the Y-axis direction is in contact with the curved support mold 801, as shown in FIG. Fig.18 As shown, when the supporting wheel 135 abuts against the first top A of the curved support mold 801, the suturing assembly 9 starts to sew, and when the supporting wheel 135 abuts against the second top B of the curved support mold 801, the suturing is completed.

[0089] During operation, several small materials are placed on the small material lifting workbench 2, and large materials are placed on the large material lifting workbench 5. Then, the small materials are picked up by the vertical and horizontal movement of the small material moving component 3, and the small materials are moved to the position of the small material edge alignment component 4 for automatic edge alignment. The edge alignment process will control the stroke of the corresponding driving cylinder according to the size of the cloth to preset the placement position. At the same time, after picking up one or more small materials, the small material lifting workbench 2 rises, and the next batch of small materials enters the position to be picked up. The transportation of large materials is the same as the edge alignment.

[0090] After the cloth pieces are aligned, the second cylinder 104 is used to press the small pieces, and then the first cylinder 102 is used to move the bending plate 101, so that the curved structure on the upper part of the bending plate 101 contacts the protruding end surface of the cloth piece, and the cloth piece is bent;

[0091] Then, the horizontal moving component 701 cooperates with the vertical moving component 702 to drive the displacement clamping end 707 to move to the predetermined position, and then the horizontal adjustment component 703 cooperates with the vertical adjustment component 705 to control the upper fixed plate 704 and the first movable plate 706 to clamp the small bent material; then, the small material is transferred to the upper part of the large material so that the small material and the large material can be docked;

[0092] Then the conveying component 8 moves the clamping and transferring component 13 to the docked fabric, and clamps and fixes the fabric through the piano key clamp 133 and the clamping plate 134. Subsequently, the fabric moves through the movement of the conveying component 8, and the conveying component 8 moves the docked fabric to the sewing component 9 for automatic sewing. Since the conveying component 8 is provided with a curved support mold 801, and the support wheel 135 in the clamping and transferring component 13, the support wheel 135 moves on the curved support mold 801, thereby moving the second movable plate 131, and then the docked fabric moves in a curve, thereby realizing the effect of curved sewing, while ensuring the stability of sewing quality and improving sewing efficiency.

[0093] Example 2

[0094] Compared with Example 1, Fig.16 As shown, in this embodiment, the sewing clamping end 16 includes a clamping plate 134 and a piano key type clamping plate 133 located on the upper part of the clamping plate 134, and clamping is achieved by the cooperation between the piano key type clamping plate 133 and the clamping plate 134; specifically, both the piano key type clamping plate 133 and the clamping plate 134 can be driven by a cylinder to move in the vertical direction, that is, the Z-axis direction, and the two are close to each other to clamp the fabric. The piano key type clamping plate 133 divides the clamping part into multiple sections to achieve multi-section clamping, which can ensure the stability and reliability of the clamping process.

[0095] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A curved suturing device, characterized in that: The curved suturing device comprises a frame (1), a first workbench (11) and a second workbench (12) arranged on two sides of the frame (1) relative to each other, a conveying assembly (8) located between the first workbench (11) and the second workbench (12), and a suturing assembly (9) located on one side of the conveying assembly (8) and used for suturing; The first workbench (11) is used for the transfer and alignment of small materials; the second workbench (12) is used for the transfer and alignment of large materials; A small material bending assembly (10) and a bending displacement assembly (7) are also provided between the first workbench (11) and the second workbench (12); the small material bending assembly (10) is used to bend small pieces of cloth, and the bending displacement assembly (7) is used to clamp the bent small pieces and move them to the top of the large piece; The conveying assembly (8) comprises a clamping and transferring assembly (13) and a conveying guide rail (15) cooperating with the clamping and transferring assembly (13); the clamping and transferring assembly (13) is used to clamp small materials and large materials and transfer them to the sewing assembly (9) for sewing; The conveying guide rail (15) is provided with a curved template (801), the position of the curved template (801) corresponds to the suturing component (9), and the curved template (801) enables the clamping and transferring component (13) to perform curved motion at the suturing component (9) to achieve curved suturing; The small material bending assembly (10) comprises a bending plate (101) and a bending pressing plate (103); The edge of the bending plate (101) is in a curved shape, and the first cylinder (102) drives the bending plate (101) to move downward along the Z-axis direction so that the protruding portion of the small material can be bent in a curved shape; The bending pressing plate (103) is used to press and fix the small material to be bent after the small material opposite edge assembly (4) has been completed, and the bending pressing plate (103) can be driven by the second cylinder (104) to move up and down along the Z-axis direction; The edge of the small material to be bent, which is used to place the small material to be bent after the small material has been aligned, is in a curved shape that can complement the edge of the bending plate (101); The bending displacement component (7) comprises a transverse movement component (701), a longitudinal movement component (702) and a displacement clamping end (707). The lateral moving component (701) is used to drive the displacement clamping end (707) to reciprocate along the Y-axis direction, and the longitudinal moving component (702) is used to drive the displacement clamping end (707) to reciprocate along the Z-axis direction; The displacement clamping end (707) comprises a transverse adjustment component (703), an upper fixed plate (704), a longitudinal adjustment component (705) and a first movable plate (706); The upper fixed plate (704) is fixedly connected to the transverse adjustment component (703); a longitudinal adjustment component (705) is also provided on the upper fixed plate (704); and a first movable plate (706) is provided at the lower end of the longitudinal adjustment component (705); The first movable plate (706) is driven to move longitudinally by the longitudinal adjustment component (705), so as to cooperate with the upper fixed plate (704) to clamp the small material; Furthermore, the clamping end edges of the upper fixed plate (704) and the first movable plate (706) are curved; The clamping and transporting assembly (13) comprises a support plate (132), a second movable plate (131) arranged on the upper part of the support plate (132) and capable of reciprocating along the Y-axis direction on the support plate (132), and a suture clamping end (16) arranged on the second movable plate (131) and extending outwardly; The support plate (132) is used for sliding connection with the conveying guide rail (15), and the suturing clamping end (16) is used for clamping small materials and large materials; The bottom of the second movable plate (131) is also provided with a support wheel (135) extending downward, and the support wheel (135) is capable of rolling contact with the curved support mold (801). A tension spring is provided between the second movable plate (131) and the support plate (132). When the clamping and transferring assembly (13) moves along the curved support mold (801) on the conveying guide rail (15) and performs stitching, the elastic force of the tension spring causes the support wheel (135) to maintain contact with the curved support mold (801), so that the movement trajectory of the clamping and transferring assembly (13) in the Y-axis direction is in contact with the curved support mold (801). The curved profile (801) provides a compensating movement in the Y-axis direction to the clamping and transferring component (13), thereby achieving curved suturing without the suturing component (9) moving.

2. A curve suturing device according to claim 1, characterized in that: The first workbench (11) comprises a small material lifting workbench (2), a small material moving assembly (3) and a small material edge alignment assembly (4); The small material lifting workbench (2) is used to store small materials and drive the small materials to move in a vertical direction, the small material moving assembly (3) is used to pick up small materials and move the small materials to the position of the small material edge alignment assembly (4), and the small material edge alignment assembly (4) is used to perform edge alignment operations on the small materials before bending; The second workbench (12) comprises a large material lifting workbench (5), a large material moving assembly (6), and a large material edge alignment assembly (14); The large material lifting workbench (5) is used to store the large materials and drive the large materials to move in the vertical direction. The large material moving assembly (6) is used to pick up the large materials and move them to the position of the large material edge alignment assembly (14). The large material edge alignment assembly (14) is used to perform edge alignment operations on the large materials.

3. A curve suturing device according to claim 2, characterized in that: The small material lifting workbench (2) and the large material lifting workbench (5) are both provided with a limit baffle (2a) and a limit switch (2b). The limit baffle (2a) is provided with a waist-shaped hole for fixing, the limit baffle (2a) is used to limit the small material or the large material, and the limit switch (2b) is used to control the movement height of the small material lifting workbench (2) or the large material lifting workbench (5); The small material lifting workbench (2) and the large material lifting workbench (5) are both driven by cylinders.

4. A curve suturing device according to claim 2, characterized in that: The small material moving assembly (3) and the large material moving assembly (6) are both provided with a material moving truss (3a), and a material moving suction cup (3b) arranged on the material moving truss (3a) for absorbing small materials or large materials; The material transfer truss (3a) is driven by a cylinder to move in horizontal and vertical directions.

5. A curve suturing device according to claim 2, characterized in that: The small material side assembly (4) and the large material side assembly (14) are respectively provided with two groups, and each group of the small material side assembly (4) and the large material side assembly (14) comprises a first pair of side baffles (4a) and a corresponding first pair of side cylinders capable of driving the first pair of side baffles (4a) to move horizontally along the X-axis direction, and a second pair of side baffles (4b) and a corresponding second pair of side cylinders capable of driving the second pair of side baffles (4b) to move horizontally along the Y-axis direction; The small material or the large material is moved to a predetermined position by the cooperation of the first pair of side baffles (4a) and the second pair of side baffles (4b).

6. A curve suturing device according to claim 1, characterized in that: The suture clamping end (16) comprises a clamping plate (134) and a piano key type clamping plate (133) located on the upper part of the clamping plate (134), and clamping is performed by the cooperation between the piano key type clamping plate (133) and the clamping plate (134); The piano key type clamping plate (133) realizes multi-segment clamping by dividing the clamping part into multiple segments.

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