A cylindrical knitted fabric transferable knitted loop and folded-over sewn loop device

Abstract

The application provides a cylindrical knitted fabric transferable knitted loop and folding and sewing device, and relates to the technical field of textile equipment, which solves the technical problem of high installation difficulty in the prior art. The device comprises a driving part, a sewing assembly device connecting arm, a three-purpose insert piece assembly connecting arm, a three-purpose insert piece assembly and a sewing and pricking needle disc assembly. The driving part is connected with the sewing and pricking needle disc assembly. The sewing assembly device connecting arm is arranged on the upper part of the sewing and pricking needle disc assembly. The three-purpose insert piece assembly is movably arranged on the sewing and pricking needle disc assembly. The three-purpose insert piece assembly can slide up and down along the sewing and pricking needle disc assembly. The three-purpose insert piece assembly connecting arm is connected with the three-purpose insert piece assembly. The three-purpose insert piece assembly which can slide up and down along the sewing and pricking needle disc assembly is used to replace the traditional multi-component structure, so as to reduce the installation difficulty of the device.

Description

Technical Field

[0001] This invention relates to the field of textile equipment technology, and in particular to a transferable knitting loop for cylindrical knitted fabrics and a folding and stitching device. Background Technology

[0002] Previous suture devices such as Figure 11 As shown, the assembly includes a drive motor 27, a mounting body 28 for the sewing assembly device, a motor transmission gear 29, a sewing assembly rotation gear 30, a suturing needle disc 31, an upper transfer coil insert pressure plate 32, an upper transfer coil insert pressure plate transfer arm 33, a transfer hook needle insert assembly 34, a transfer hook needle insert assembly transfer arm 35, a lower transfer coil insert top plate 36, and a lower transfer coil insert top plate mounting base 37. Among these, the suturing needle disc 31, the upper transfer coil insert pressure plate 32, the transfer hook needle insert assembly 34, and the lower transfer coil insert top plate 36 are all separate assembly bodies. In actual installation, it is necessary to ensure that the four circles are on the same rotation axis, which makes installation difficult and results in a high failure rate. Summary of the Invention

[0003] The purpose of this invention is to provide a transferable knitting loop and a folding and stitching device for cylindrical knitted fabrics, solving the technical problem of high installation difficulty in the prior art. The various technical effects of the preferred solutions among the many technical solutions provided by this invention are detailed below.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] The present invention provides a cylindrical knitted fabric transferable knitting loop and folded stitch sewing device, comprising a drive unit, a sewing assembly connecting arm, a three-way insert assembly connecting arm, a three-way insert assembly, and a sewing needle plate assembly. The drive unit is connected to the sewing needle plate assembly. The sewing assembly connecting arm is disposed on the upper part of the sewing needle plate assembly. The three-way insert assembly is movably disposed on the sewing needle plate assembly and can slide up and down along the sewing needle plate assembly. The three-way insert assembly connecting arm is connected to the three-way insert assembly.

[0006] Preferably, the connecting arm of the three-in-one insert assembly is connected to the linear drive mechanism.

[0007] Preferably, the three-purpose insert assembly includes a three-purpose insert advance / retreat guide wheel groove, three-purpose inserts, an assembly mounting bracket, insert reset radial springs, expansion rings, expansion ring guide pins, and a stroke slider. The three-purpose insert advance / retreat guide wheel groove is provided with multiple circumferentially evenly spaced sliding grooves. The number of three-purpose inserts is the same as the number of sliding grooves, and they are slidably disposed in the sliding grooves in a one-to-one correspondence. The insert reset radial springs are provided on the outer periphery of the multiple three-purpose inserts. Expansion rings are provided on the outer periphery of the multiple three-purpose inserts. Expansion ring guide pins are provided on the expansion rings. The stroke slider is provided with expansion ring advance / retreat guide grooves, and the expansion ring guide pins pass through the expansion ring advance / retreat guide grooves.

[0008] Preferably, the stroke slider has a circular ring structure, and the number of the expansion and contraction ring guide pins is multiple and arranged in the circumference of the stroke slider. One end of the expansion and contraction ring guide groove is close to the center of the stroke slider, and the other end is far away from the center of the stroke slider.

[0009] Preferably, the drive unit includes a motor, a motor gear, a bridge gear, and a suture assembly rotating gear. The motor gear is disposed on the output shaft of the motor. The motor gear meshes with the bridge gear. The bridge gear meshes with the suture assembly rotating gear. The suture assembly rotating gear is disposed on the peripheral wall of the suture needle disk assembly.

[0010] Preferably, the suture needle plate assembly includes a suture plate base, a pressure ring axial sliding ring, a pressure ring top rod mounting plate cover, a pressure ring top rod, and a pressure ring return spring. The suture plate base is a cylindrical structure, and a cylindrical groove is provided on the peripheral side wall of the suture plate base. The opening of the cylindrical groove is located at the upper end of the suture plate base. The pressure ring axial sliding ring is disposed in the cylindrical groove. A pressure ring top rod mounting plate cover is provided at the upper end of the pressure ring axial sliding ring. One end of the pressure ring top rod passes through the pressure ring axial sliding ring and is connected to the pressure ring top rod mounting plate cover, and the other end passes through the bottom of the cylindrical groove. A pressure ring return spring is sleeved on the outside of the pressure ring top rod.

[0011] Preferably, the bottom of the suture disc base is provided with a fixed semicircular disc and a rotating semicircular disc. Transfer needles are evenly distributed on the fixed semicircular disc, and transfer suture needles are evenly distributed on the rotating semicircular disc. The fixed semicircular disc and the rotating semicircular disc are hinged to form a disc. The rotating semicircular disc can be rotated to a state opposite to the fixed semicircular disc, so that the transfer suture needles and the transfer needles correspond one-to-one.

[0012] Preferably, the transfer needle and the transfer suture needle can correspond one-to-one with the needle hook, and the three-in-one insert can transfer the knitting loop on the needle hook to the transfer needle or the transfer suture needle.

[0013] Preferably, the outer wall of the suture needle plate assembly is connected to the suture assembly mounting block via a suture assembly fixing bearing.

[0014] The application employs the above technical solution and has at least the following beneficial effects: The cylindrical knitted fabric transferable knitting loop and folded stitch sewing device includes a drive unit, a sewing assembly connecting arm, a three-way insert assembly connecting arm, a three-way insert assembly, and a needle plate assembly. The drive unit is connected to the needle plate assembly. The sewing assembly connecting arm is located on the upper part of the needle plate assembly. The three-way insert assembly is movably mounted on the needle plate assembly and can slide up and down along the needle plate assembly. The three-way insert assembly connecting arm is connected to the three-way insert assembly. The inclusion of the three-way insert assembly, which can slide up and down along the needle plate assembly, solves the installation difficulties inherent in traditional multi-concentric component technologies.

[0015] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the transferable knitting loop and the folded stitch sewing device for cylindrical knitted fabric provided in an embodiment of the present invention; Figure 2 This is a cross-sectional view of the three-purpose insert assembly provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the three-purpose insert guide wheel grooved disk structure provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the three-purpose insert assembly provided in an embodiment of the present invention; Figure 5 This is a cross-sectional structural schematic diagram of the cylindrical knitted fabric transferable knitting loop and the folded stitching device provided in the embodiment of the present invention. Figure 6 This is a schematic diagram of the suture disc base structure provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the main view structure of the three-in-one insert provided in an embodiment of the present invention; Figure 8This is a top view schematic diagram of the three-purpose insert structure provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the folded and stitched state structure of the transferable knitting loops and the folded and stitched sewing device for cylindrical knitted fabric provided in an embodiment of the present invention; Figure 10 This is a schematic diagram of the knitting coil transfer state structure provided in an embodiment of the present invention; Figure 11 This is a schematic diagram of the existing device structure provided in the embodiments of the present invention.

[0018] In the diagram: 1. Drive unit; 2. Connecting arm of the sewing assembly; 3. Connecting arm of the three-way insert assembly; 4. Three-way insert assembly; 5. Sewing needle disc assembly; 6. Three-way insert advance / retreat guide wheel groove; 7. Three-way insert; 8. Assembly mounting bracket; 9. Insert return radial spring; 10. Shrink / expansion ring; 11. Shrink / expansion ring guide screw; 12. Stroke slider; 13. Slide groove; 14. Shrink / expansion ring advance / retreat guide groove; 15. Motor; 16. Motor gear; 17. Bridge gear; 18. Sewing assembly rotating gear; 19. Sewing disc base; 20. Pressure ring axial sliding ring; 21. Pressure ring top rod mounting plate cover; 22. Pressure ring top rod; 23. Pressure ring return spring. 24. Cylindrical groove; 25. Seam assembly fixing bearing; 26. Seam assembly mounting block; 27. Drive motor; 28. Seam assembly mounting body; 29. ​​Motor transmission gear; 30. Seam assembly rotating gear; 31. Seam needle plate; 32. Upper transfer coil insert pressure plate; 33. Upper transfer coil insert pressure plate transfer arm; 34. Transfer hook needle insert assembly; 35. Transfer hook needle insert assembly transfer arm; 36. Lower transfer coil insert top plate; 37. Lower transfer coil insert top plate mounting base; 38. Fixed semi-circular disc; 39. Flipping semi-circular disc; 40. Transfer needle; 41. Transfer seam needle; 42. Needle hook; 43. Knitting loop. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0020] A specific embodiment of the present invention provides a transferable knitting loop for a circular knitted fabric, combined with an attached... Figure 1 As shown, it mainly includes a drive unit 1, a suture assembly connecting arm 2, a three-way insert assembly connecting arm 3, a three-way insert assembly 4, and a suture needle plate assembly 5. The drive unit 1 is connected to the suture needle disk assembly 5, and the drive unit 1 is used to drive the suture needle disk assembly 5. The connecting arm 2 of the suture assembly device is located on the upper part of the suture needle plate assembly 5; The three-in-one insert assembly 4 is movably mounted on the suture needle plate assembly 5, and the three-in-one insert assembly 4 can slide up and down along the suture needle plate assembly 5. The three-way insert assembly connecting arm 3 is connected to the three-way insert assembly 4. The three-way insert assembly connecting arm 3 is used to connect with the drive mechanism to drive the three-way insert assembly 4 to move along the suture needle disk assembly 5. Specifically, the three-way insert assembly connecting arm 3 is connected to the linear drive mechanism. This linear drive mechanism can be a linear motor, cylinder, hydraulic cylinder, etc., that can achieve linear directional drive.

[0021] This application incorporates existing technology (see...) Figure 11 The four components in the original text are simplified to two components, and the three component inserts in the prior art (see...) are... Figure 11 The upper transfer coil insert pressure plate 32, transfer hook insert assembly 34, and lower transfer coil insert top plate 36 have been replaced with a three-in-one insert. This simplifies the equipment structure, thereby reducing installation steps and improving installation efficiency. Furthermore, this application uses a three-in-one insert assembly 4 to replace the traditional upper transfer coil insert pressure plate 32, transfer hook insert assembly 34, and lower transfer coil insert top plate 36. In actual installation, it is only necessary to ensure the concentricity of the three-in-one insert assembly 4 and the suture needle plate assembly 5, which greatly reduces the difficulty of equipment installation.

[0022] In a specific embodiment of this application, the three-purpose insert assembly 4 includes a three-purpose insert advance and retraction guide wheel groove 6, a three-purpose insert 7, an assembly mounting bracket 8, an insert return radial spring 9, a shrinking and expanding ring 10, a shrinking and expanding ring guide screw 11, and a stroke slider 12, in conjunction with the attached... Figure 2-5 As shown, the three-purpose insert guide wheel groove 6 is provided with multiple circumferentially evenly spaced sliding grooves 13. The number of three-purpose inserts 7 is the same as the number of sliding grooves 13, and they are slidably arranged in the sliding grooves 13 in a one-to-one correspondence. The outer periphery of the multiple three-purpose inserts 7 is provided with insert return radial springs 9, and the outer periphery of the multiple three-purpose inserts 7 is provided with expansion rings 10. Expansion ring guide pins 11 are provided on expansion rings 10. Expansion ring guide grooves 14 are provided on stroke sliders 12. Expansion ring guide pins 11 pass through expansion ring guide grooves 14. The guide grooves 14 have a smooth arc in the middle, which is used to position the center distance of the three-purpose inserts.

[0023] The upper surface of the three-way insert guide wheel groove plate 6 is provided with an annular groove, and multiple sliding grooves 13 are provided in the annular groove. The sliding grooves 13 face the axis of the three-way insert guide wheel groove plate 6, and the three-way insert 7 can slide in this sliding groove 13 towards or away from the axis of the three-way insert guide wheel groove plate 6.

[0024] Multiple three-purpose inserts 7 are arranged in a ring, and a insert reset radial spring 9 is provided on the outer periphery of the three-purpose insert 7. The three-purpose insert 7 is tightened by the insert reset radial spring 9. A shrinking and expanding ring 10 is provided on the inner periphery of the three-purpose insert 7. The three-purpose insert 7 can be pushed to slide in a direction away from the axis of the three-purpose insert advance and retreat guide wheel groove 6 by the shrinking and expanding ring 10.

[0025] For this purpose, a shrinking and expanding ring guide screw 11 is also provided. The shrinking and expanding ring guide screw 11 is connected to the shrinking and expanding ring 10, and the shrinking and expanding ring guide screw 11 passes through the shrinking and expanding ring advance and retreat guide groove 14 on the stroke slider 12. In this way, the stroke slider 12 pushes the shrinking and expanding ring guide screw 11 to drive the expansion of the shrinking and expanding ring 10, thereby driving the circumferential three-way insert 7 to slide through the expansion of the shrinking and expanding ring 10.

[0026] Specifically, the number of expansion and contraction ring guide pins 11 in this application can be multiple and evenly distributed along the circumference of the expansion and contraction ring 10. For this purpose, a corresponding number of expansion and contraction ring guide grooves 14 need to be provided on the stroke slider 12. The stroke slider 12 has a circular ring structure, and the number of expansion and contraction ring guide pins 11 is multiple and arranged in the circumference of the stroke slider 12. One end of the expansion and contraction ring guide groove 14 is close to the center of the stroke slider 12, and the other end is far away from the center of the stroke slider 12.

[0027] In specific embodiments of this application, in conjunction with the appendix Figure 5 The drive unit 1 includes a motor 15, a motor gear 16, a bridge gear 17, and a sewing assembly rotating gear 18. The motor gear 16 is mounted on the output shaft of the motor 15. The motor gear 16 meshes with the bridge gear 17, which in turn meshes with the sewing assembly rotating gear 18. The sewing assembly rotating gear 18 is mounted on the peripheral wall of the suture needle disk assembly 5. Thus, the motor 15 drives the motor gear 16 to rotate, which in turn drives the bridge gear 17, which in turn drives the sewing assembly rotating gear 18 to rotate, thereby enabling the movement of the suture needle disk assembly 5.

[0028] In some embodiments, the suture needle disk assembly 5 includes a suture disk base 19, a pressure ring axial sliding ring 20, a pressure ring top rod mounting plate cover 21, a pressure ring top rod 22, and a pressure ring return spring 23. The suture base 19 is a cylindrical structure with thick sidewalls. A cylindrical groove 24 is provided on the sidewalls. The opening of the cylindrical groove 24 is located at the upper end of the suture base 19. The pressure ring axial sliding ring 20 is set in the cylindrical groove 24. A pressure ring top rod mounting plate cover 21 is provided at the upper end of the pressure ring axial sliding ring 20. One end of the pressure ring top rod 22 passes through the pressure ring axial sliding ring 20 and is connected to the pressure ring top rod mounting plate cover 21. The other end passes through the bottom of the cylindrical groove 24. A pressure ring return spring 23 is sleeved on the outside of the pressure ring top rod 22.

[0029] In some embodiments, the outer wall of the suture needle disk assembly 5 is connected to the suture assembly mounting block 26 via a suture assembly fixing bearing 25, the suture assembly mounting block 26 being used to mount the suture needle disk assembly 5 onto the device.

[0030] The bottom of the suture base 19 is provided with a fixed semicircular disc 38 and a flipping semicircular disc 39, combined with the attached... Figure 9 As shown, transfer needles 40 are evenly distributed on the fixed semicircular disk 38. The transfer needles 40 are vertically arranged, and a portion of the transfer needles 40 extends to the bottom of the fixed semicircular disk 38. Transfer sewing needles 41 are evenly distributed on the flipping semicircular disk 39. The transfer sewing needles 41 are vertically arranged, and a portion of the transfer sewing needles 41 extends to the bottom of the flipping semicircular disk 39. The fixed semicircular disk 38 and the flipping semicircular disk 39 are circles of the same diameter. The fixed semicircular disk 38 and the flipping semicircular disk 39 are hinged to form a disk. The flipping semicircular disk 39 can be flipped to a state opposite to the fixed semicircular disk 38, so that the transfer sewing needles 41 and the transfer needles 40 correspond one-to-one. In this way, the folding and stitching of the tubular knitted fabric can be realized.

[0031] Therefore, the transfer needle 40 and the transfer suture needle 41 in this application can correspond one-to-one with the needle hook 42 on the knitting device, so that the knitting loop 43 on the needle hook 42 can be transferred to the transfer needle 40 or the transfer suture needle 41 by the three-way insert 7.

[0032] Combined with appendix Figure 10 As shown, A and H represent the eight states that proceed sequentially, where: State A is the state of the knitting loop 43 on the knitting device between the hook and the needle tongue on the needle hook 42.

[0033] State B is the state when the three-way insert 7 moves to the side of the hook 42.

[0034] State C is the state where the transfer suture needle 41 or transfer needle 40 is docked at the hook position of the needle hook 42; it should be noted that since all the knitting loops 43 need to be transferred, the knitting loops 43 need to be transferred to the corresponding transfer suture needle 41 or transfer needle 40.

[0035] State D is the state after the three-purpose insert 7 has moved upward relative to the transfer suture needle 41 or transfer needle 40. At this time, the head end of the three-purpose insert 7 (attached) Figure 8 The thinner end (left end) is located on one side of the transfer suture needle 41 or transfer needle 40.

[0036] State E is the state after the three-way insert 7 has moved downward relative to the transfer suture needle 41 or the transfer needle 40. Since the head end of the three-way insert 7 forms a step, this part can drive the needle tongue to swing downward during the downward movement of the three-way insert 7, and drive the knitting loop 43 to move downward; State F is the state where the three-in-one insert 7 continues to move downwards until the three-in-one insert 7 is located below the knitting loop 43.

[0037] State G is the state where the three-in-one insert 7 moves upward and drives the knitting loop 43 to move upward, while simultaneously driving the needle tongue to move upward in the opposite direction; State H is the state in which the three-way insert 7 pushes the knitting loop 43 upwards and moves it completely onto the transfer suture needle 41 or the transfer needle 40.

[0038] This completes the transfer of all knitting loops 43.

[0039] The semi-circular disk 39 is then flipped and connected to the fixed semi-circular disk 38, so that the transfer suture needle 41 and the transfer needle 40 correspond one-to-one for suturing.

[0040] It should be noted that both the transfer suture needle 41 and the transfer needle 40 have grooves on the side walls of their tips, and the groove width on the transfer suture needle 41 is greater than the groove width on the transfer needle 40.

[0041] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," and "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0042] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A device for transferring knitting loops and folding and sewing together in cylindrical knitted fabrics, characterized in that, The device includes a drive unit, a suture assembly connecting arm, a three-way insert assembly connecting arm, a three-way insert assembly, and a suture needle disk assembly. The drive unit is connected to the suture needle disk assembly and is used to drive the suture needle disk assembly. The suture assembly connecting arm is disposed on the upper part of the suture needle disk assembly. The three-way insert assembly is movably disposed on the suture needle disk assembly and can slide up and down along the suture needle disk assembly. The three-way insert assembly connecting arm is connected to the three-way insert assembly and is connected to a linear drive mechanism to drive the three-way insert assembly to move along the suture needle disk assembly. The three-purpose insert assembly includes a three-purpose insert advance / retreat guide wheel groove, three-purpose inserts, an assembly mounting bracket, insert reset radial springs, expansion rings, expansion ring guide pins, and a stroke slider. The three-purpose insert advance / retreat guide wheel groove is provided with multiple circumferentially evenly spaced sliding grooves. The number of three-purpose inserts is the same as the number of sliding grooves, and they are slidably disposed in the sliding grooves in a one-to-one correspondence. The insert reset radial springs are provided on the outer periphery of the multiple three-purpose inserts. Expansion rings are provided on the outer periphery of the multiple three-purpose inserts. Expansion ring guide pins are provided on the expansion rings. The stroke slider is provided with expansion ring advance / retreat guide grooves, and the expansion ring guide pins pass through the expansion ring advance / retreat guide grooves.

2. The cylindrical knitted fabric transferable knitting loop and folded stitch sewing device according to claim 1, characterized in that, The connecting arm of the three-in-one insert assembly is connected to the linear drive mechanism.

3. The transferable knitting loop and folding stitch sewing device for cylindrical knitted fabrics according to claim 1, characterized in that, The stroke slider has a circular structure, and there are multiple expansion and contraction ring guide pins arranged in the circumference of the stroke slider. One end of the expansion and contraction ring guide groove is close to the center of the stroke slider, and the other end is far away from the center of the stroke slider.

4. The cylindrical knitted fabric transferable knitting loop and folded stitch sewing device according to claim 3, characterized in that, The drive unit includes a motor, a motor gear, a bridge gear, and a suture assembly rotating gear. The motor gear is mounted on the output shaft of the motor and meshes with the bridge gear. The bridge gear meshes with the suture assembly rotating gear, which is mounted on the peripheral wall of the suture needle plate assembly.

5. The cylindrical knitted fabric transferable knitting loop and folding and stitching device according to claim 4, characterized in that, The suture needle plate assembly includes a suture plate base, a pressure ring axial sliding ring, a pressure ring top rod mounting plate cover, a pressure ring top rod, and a pressure ring return spring. The suture plate base is a cylindrical structure with a cylindrical groove on its peripheral sidewall. The opening of the cylindrical groove is located at the upper end of the suture plate base. The pressure ring axial sliding ring is disposed in the cylindrical groove. A pressure ring top rod mounting plate cover is disposed at the upper end of the pressure ring axial sliding ring. One end of the pressure ring top rod passes through the pressure ring axial sliding ring and connects to the pressure ring top rod mounting plate cover, while the other end passes through the bottom of the cylindrical groove. A pressure ring return spring is sleeved on the outside of the pressure ring top rod.

6. The transferable knitting loop and folding stitch sewing device for cylindrical knitted fabrics according to claim 5, characterized in that, The bottom of the suture disc base is provided with a fixed semi-circular disc and a rotating semi-circular disc. Transfer needles are evenly distributed on the fixed semi-circular disc, and transfer suture needles are evenly distributed on the rotating semi-circular disc. The fixed semi-circular disc and the rotating semi-circular disc are hinged to form a disc. The rotating semi-circular disc can be rotated to a state opposite to the fixed semi-circular disc, so that the transfer suture needles and the transfer needles correspond one-to-one.

7. The transferable knitting loop and folding stitch sewing device for cylindrical knitted fabrics according to claim 6, characterized in that, The transfer needle and the transfer suture needle can correspond one-to-one with the needle hook, and the three-in-one insert can transfer the knitting loop on the needle hook to the transfer needle or the transfer suture needle.

8. The transferable knitting loop and folding stitch sewing device for cylindrical knitted fabrics according to claim 1, characterized in that, The outer wall of the suture needle plate assembly is connected to the suture assembly mounting block via a suture assembly fixing bearing.

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