Transferable knitting coil and folding alignment sewing device for cylindrical knitted fabric

Abstract

The invention provides a transferable knitting coil of a cylindrical knitted fabric and a folding and aligning sewing device, relates to the technical field of textile equipment, and solves the technical problem of high mounting difficulty in the prior art. The device comprises a driving part, a sewing assembly device connecting arm, a three-purpose insert assembly connecting arm, a three-purpose insert assembly and a sewing needle disc assembly, the driving part is connected with the sewing needle disc assembly, the sewing assembly device connecting arm is arranged on the upper portion of the sewing needle disc assembly, and the three-purpose insert assembly is movably arranged on the sewing needle disc assembly. The three-purpose inserting piece assembly can slide up and down along the sewing needle disc assembly, and the three-purpose inserting piece assembly connecting arm is connected with the three-purpose inserting piece assembly. A traditional multi-component structure is replaced with the three-purpose inserting piece assembly capable of sliding up and down along the sewing needle disc assembly, and therefore the installation difficulty of equipment is lowered.

Description

Technical Field

[0001] The invention relates to the technical field of textile equipment, in particular to a transferable knitting coil and a folding and stitching device for a cylindrical knitted fabric. Background Art

[0002] Previous suture devices such as Fig. 9 As shown, it includes a driving motor 27, a mounting body 28 of a suturing assembly device, a motor driving gear 29, a suturing assembly rotating gear 30, a suturing needle disk 31, an upper transfer coil insert plate 32, an upper transfer coil insert plate transfer arm 33, a transfer hook insert assembly 34, a transfer hook insert assembly transfer arm 35, a lower transfer coil insert top plate 36, a lower transfer coil insert top plate mounting seat 37 and other components, wherein the suturing needle disk 31, the upper transfer coil insert plate 32, the transfer hook insert assembly 34, and the lower transfer coil insert top plate 36 are respectively separate assembly bodies. During actual installation, it is necessary to ensure that the four circles are on the same rotation center line, which makes the installation difficult and the failure rate is high. Summary of the invention

[0003] The purpose of the present invention is to provide a transferable knitting loop and folding and stitching device for a cylindrical knitted fabric, which solves the technical problem of difficult installation in the prior art. The preferred technical solution among the many technical solutions provided by the present invention can produce many technical effects as described below.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention provides a transferable knitting coil and folding and stitching device for a cylindrical knitted fabric, comprising a driving portion, a stitching assembly device connecting arm, a three-purpose insert assembly connecting arm, a three-purpose insert assembly and a puncture needle disk assembly, wherein the driving portion is connected to the puncture needle disk assembly, the puncture assembly device connecting arm is arranged on the upper part of the puncture needle disk assembly, the three-purpose insert assembly is movably arranged on the puncture needle disk assembly, the three-purpose insert assembly can slide up and down along the puncture needle disk assembly, and the three-purpose insert assembly connecting arm is connected to the three-purpose insert assembly.

[0006] Preferably, the three-purpose plug assembly connecting arm is connected to a linear drive mechanism.

[0007] Preferably, the three-purpose plug assembly includes a three-purpose plug advance and retreat guide wheel groove plate, a three-purpose plug, an assembly mounting frame, a plug reset radial spring, a shrinkage and expansion ring, a shrinkage and expansion ring guide screw and a travel slider; the three-purpose plug advance and retreat guide wheel groove plate is provided with a plurality of circumferentially evenly distributed sliding grooves; the number of the three-purpose plugs is the same as the number of the sliding grooves, and they are slidably arranged in the sliding grooves one by one; the plug reset radial springs are arranged on the outer circumferential sides of a plurality of the three-purpose plugs; the shrinkage and expansion rings are arranged on the outer circumferential sides of a plurality of the three-purpose plugs; the shrinkage and expansion ring guide screws are arranged on the shrinkage and expansion ring; the travel slider is provided with the shrinkage and expansion ring advance and retreat guide groove, and the shrinkage and expansion ring guide screw is penetrated into the shrinkage and expansion ring advance and retreat guide groove.

[0008] Preferably, the travel slider is in an annular structure, the shrinking and expanding ring guide screws are multiple in number and are arranged in the circumference of the travel slider, one end of the shrinking and expanding ring advance and retreat guide groove is close to the center of the travel slider, and the other end is far away from the center of the travel slider.

[0009] Preferably, the driving part includes a motor, a motor gear, a bridge gear and a suturing assembly rotating gear, the motor gear is arranged on the output shaft of the motor, the motor gear is meshed with the bridge gear, the bridge gear is meshed with the suturing assembly rotating gear, and the suturing assembly rotating gear is arranged on the peripheral wall of the puncture needle disk assembly.

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

[0011] Preferably, a fixed semi-circular disk and a flip semi-circular disk are provided at the bottom of the suture disk base, transfer needles are evenly distributed on the fixed semi-circular disk, and transfer suturing needles are evenly distributed on the flip semi-circular disk. The fixed semi-circular disk and the flip semi-circular disk are hinged to form a disk, and the flip semi-circular disk can be flipped to a relative state with the fixed semi-circular disk, so that the transfer suturing needles and the transfer needles correspond one by one.

[0012] Preferably, the transfer needle and the transfer suture needle can correspond to the needle hook one by one, and the three-purpose insert can transfer the knitted loop on the needle hook to the transfer needle or the transfer suture needle.

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

[0014] This application adopts the above technical solution, which has at least the following beneficial effects:

[0015] The transferable knitting coil and folding stitching device for cylindrical knitted fabrics comprises a driving part, a stitching assembly device connecting arm, a three-purpose insert assembly connecting arm, a three-purpose insert assembly and a puncture needle disk assembly, wherein the driving part is connected to the puncture needle disk assembly, the stitching assembly device connecting arm is arranged on the upper part of the puncture needle disk assembly, the three-purpose insert assembly is movably arranged on the puncture needle disk assembly, the three-purpose insert assembly can slide up and down along the puncture needle disk assembly, and the three-purpose insert assembly connecting arm is connected to the three-purpose insert assembly. The three-purpose insert assembly is arranged, and the three-purpose insert assembly can slide up and down along the puncture needle disk assembly. This structure solves the problem of installation difficulty existing in the technical solution of traditional multi-concentric components.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic structural diagram of a transferable knitting coil and a folding and stitching device for a cylindrical knitted fabric provided by an embodiment of the present invention;

[0019] Figure 2 is a schematic cross-sectional view of a three-purpose plug assembly provided by an embodiment of the present invention;

[0020] Figure 3 It is a schematic diagram of the structure of a three-purpose insert advance and retreat guide wheel groove plate provided by an embodiment of the present invention;

[0021] Figure 4 It is a schematic diagram of the structure of a three-purpose plug assembly provided by an embodiment of the present invention;

[0022] Figure 5 It is a schematic cross-sectional view of a circular knitted fabric transferable knitting coil, a cylindrical knitted fabric transferable knitting coil, and a folding and stitching device provided in an embodiment of the present invention;

[0023] Figure 6is a schematic diagram of the structure of a suture tray base provided by an embodiment of the present invention;

[0024] Figure 7 It is a schematic diagram of the main structure of the three-purpose plug provided by an embodiment of the present invention;

[0025] Figure 8 is a schematic diagram of a top view of the structure of a three-purpose plug provided by an embodiment of the present invention;

[0026] Fig. 9 It is a schematic structural diagram of the transferable knitting coils of a cylindrical knitted fabric and the folding and stitching sewing device provided by an embodiment of the present invention in the folding and stitching state;

[0027] Fig.10 is a schematic diagram of the knitting loop transfer state structure provided by an embodiment of the present invention;

[0028] Fig.11 It is a schematic diagram of the structure of an existing device provided by an embodiment of the present invention.

[0029] In the figure, 1, driving part; 2, connecting arm of suture assembly device; 3, connecting arm of three-purpose insert assembly; 4, three-purpose insert assembly; 5, puncture needle disk assembly; 6, three-purpose insert advance and retreat guide wheel groove disk; 7, three-purpose insert; 8, assembly mounting frame; 9, insert reset radial spring; 10, shrinkage and expansion ring; 11, shrinkage and expansion ring guide screw; 12, travel slider; 13, slide groove; 14, shrinkage and expansion ring advance and retreat guide groove; 15, motor; 16, motor gear; 17, bridge gear; 18, suture assembly rotating gear; 19, suture disk base; 20, pressure ring axial slide ring; 21, pressure ring push rod mounting plate cover; 22, pressure ring push rod; 23, pressure ring reset spring; 24. Cylindrical groove; 25. Suture assembly fixing bearing; 26. Suture assembly mounting block; 27. Driving motor; 28. Suture assembly device mounting body; 29. ​​Motor transmission gear; 30. Suture assembly rotating gear; 31. Sewing needle disk; 32. Upper transfer coil insert plate; 33. Upper transfer coil insert plate transfer arm; 34. Transfer hook insert assembly; 35. Transfer hook insert assembly transfer arm; 36. Lower transfer coil insert top plate; 37. Lower transfer coil insert top plate mounting seat; 38. Fixed semicircular disk; 39. Flip semicircular disk; 40. Transfer needle; 41. Transfer suture needle; 42. Needle hook; 43. Knitting coil. DETAILED DESCRIPTION

[0030] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0031] The specific embodiment of the present invention provides a circular simple knitted fabric transferable knitted loop, combined with an attached Figure 1 As shown, it mainly includes a driving part 1, a suturing assembly device connecting arm 2, a three-purpose insert assembly connecting arm 3, a three-purpose insert assembly 4 and a puncture needle disk assembly 5.

[0032] The driving part 1 is connected to the puncture needle disk assembly 5, and the driving part 1 is used to drive the puncture needle disk assembly 5;

[0033] The suture assembly device connecting arm 2 is arranged on the upper part of the suture needle tray assembly 5;

[0034] The three-purpose insert assembly 4 is movably arranged on the puncture needle tray assembly 5, and the three-purpose insert assembly 4 can slide up and down along the puncture needle tray assembly 5.

[0035] The three-purpose insert assembly connecting arm 3 is connected to the three-purpose insert assembly 4. The three-purpose insert assembly connecting arm 3 is used to connect to a driving mechanism to drive the three-purpose insert assembly 4 to move along the puncture needle disk assembly 5. Specifically, the three-purpose insert assembly connecting arm 3 is connected to a linear driving mechanism. This linear driving mechanism can be a linear motor, a cylinder, a hydraulic cylinder, etc. that can achieve linear direction drive.

[0036] In this application, the prior art (see Fig. 9 ) is simplified into two assemblies, and the three assemblies in the prior art are inserted (see Fig. 9 , upper transfer coil insert plate 32, transfer hook insert plate assembly 34, lower transfer coil insert plate top plate 36) are changed into a three-purpose insert. This method simplifies the equipment structure, thereby reducing the installation steps and improving the installation efficiency. In addition, the three-purpose insert plate assembly 4 is used in the present application to replace the traditional upper transfer coil insert plate 32, transfer hook insert plate assembly 34, and lower transfer coil insert plate top plate 36. In actual installation, it is only necessary to ensure the concentricity of the three-purpose insert plate assembly 4 and the puncture needle plate assembly 5, which greatly reduces the difficulty of equipment installation.

[0037] In the specific embodiment of the present application, the three-purpose plug assembly 4 includes a three-purpose plug advance and retreat guide wheel groove plate 6, a three-purpose plug 7, a combination mounting frame 8, a plug reset radial spring 9, a shrinking and expanding ring 10, a shrinking and expanding ring guide screw 11 and a travel slider 12, combined with the attached Figure 2-5As shown, a plurality of circumferentially evenly distributed slide grooves 13 are provided on the three-purpose plug advance and retreat guide wheel groove plate 6, the number of the three-purpose plugs 7 is the same as the number of the slide grooves 13, and they are slidably arranged in the slide grooves 13 in a one-to-one correspondence, and plug reset radial springs 9 are provided on the outer circumferential sides of the plurality of three-purpose plugs 7, and a shrinkage and expansion ring 10 is provided on the outer circumferential sides of the plurality of three-purpose plugs 7, and a shrinkage and expansion ring guide screw 11 is provided on the shrinkage and expansion ring 10, and a shrinkage and expansion ring advance and retreat guide groove 14 is provided on the stroke slider 12, and the shrinkage and expansion ring guide screw 11 is penetrated in the shrinkage and expansion ring advance and retreat guide groove 14, and a smooth arc is provided in the middle of the guide groove 14 for positioning the center distance of the three-purpose plug.

[0038] An annular groove is arranged on the upper end surface of the three-purpose plug advance and retreat guide wheel groove plate 6, and a plurality of slide grooves 13 are arranged in the annular groove. The slide groove 13 faces the axial direction of the three-purpose plug advance and retreat guide wheel groove plate 6, and the three-purpose plug 7 can slide in the slide groove 13 toward or away from the axial direction of the three-purpose plug advance and retreat guide wheel groove plate 6.

[0039] A plurality of three-purpose plugs 7 are arranged in a ring shape, and a plug reset radial spring 9 is provided on the outer peripheral side of the three-purpose plug 7, and the three-purpose plug 7 is tightened by the plug reset radial spring 9. A shrinkage ring 10 is provided on the inner peripheral side of the three-purpose plug 7, and the shrinkage ring 10 can be used to push the three-purpose plug 7 to slide in a direction away from the axis of the three-purpose plug advance and retreat guide wheel groove plate 6.

[0040] For this purpose, a shrinkage and expansion ring guide screw 11 is also provided, which is connected to the shrinkage and expansion ring 10, and is passed through a shrinkage and expansion ring advance and retreat guide groove 14 on a travel slider 12, so that the shrinkage and expansion ring guide screw 11 is pushed by the travel slider 12 to drive the expansion of the shrinkage and expansion ring 10, thereby driving the circumferential three-purpose insert 7 to slide through the expansion of the shrinkage and expansion ring 10.

[0041] Specifically, the number of the shrinking and expanding ring guide screw pins 11 in the present application can be multiple and evenly arranged along the circumference of the shrinking and expanding ring 10, and for this purpose, a corresponding number of shrinking and expanding ring advance and retreat guide grooves 14 need to be provided on the travel slider 12. The travel slider 12 is an annular structure, the number of the shrinking and expanding ring guide screw pins 11 is multiple and arranged on the circumference of the travel slider 12, and one end of the shrinking and expanding ring advance and retreat guide groove 14 is close to the center of the travel slider 12, and the other end is far away from the center of the travel slider 12.

[0042] In the specific embodiments of the present application, Figure 5The driving part 1 includes a motor 15, a motor gear 16, a bridge gear 17 and a suture assembly rotating gear 18. The motor gear 16 is arranged on the output shaft of the motor 15. The motor gear 16 is meshed with the bridge gear 17. The bridge gear 17 is meshed with the suture assembly rotating gear 18. The suture assembly rotating gear 18 is arranged on the peripheral wall of the puncture needle disk assembly 5. In this way, the motor gear 16 is driven to rotate by the motor 15, and then the bridge gear 17 is driven. The bridge gear 17 then drives the suture assembly rotating gear 18 to rotate, and then the puncture needle disk assembly 5 can be moved.

[0043] In some embodiments, the puncture needle disk assembly 5 includes a suture disk base 19, a pressure ring axial slide ring 20, a pressure ring push rod mounting plate cover 21, a pressure ring push rod 22 and a pressure ring return spring 23.

[0044] The suture disc base 19 is a cylindrical structure with a thicker side wall. A cylindrical groove 24 is arranged on the side wall. The opening of the cylindrical groove 24 is located at the upper end of the suture disc base 19. The pressure ring axial sliding ring 20 is arranged in the cylindrical groove 24. A pressure ring push rod mounting plate cover 21 is arranged on the upper end of the pressure ring axial sliding ring 20. One end of the pressure ring push rod 22 passes through the pressure ring axial sliding ring 20 and is connected with the pressure ring push rod mounting plate cover 21, and 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 push rod 22.

[0045] In some embodiments, the outer wall of the puncture needle tray assembly 5 is connected to the puncture assembly mounting block 26 through the puncture assembly fixing bearing 25, and the puncture assembly mounting block 26 is used to install the puncture needle tray assembly 5 on the device.

[0046] The bottom of the suture plate base 19 is provided with a fixed semi-circular disk 38 and a flip semi-circular disk 39, which are combined with the attached Fig. 9 As shown, transfer needles 40 are evenly distributed on the fixed semi-disc 38, the transfer needles 40 are vertically arranged, and parts of the transfer needles 40 extend to the bottom of the fixed semi-disc 38, and transfer suture needles 41 are evenly distributed on the flipping semi-disc 39, the transfer suture needles 41 are vertically arranged, and parts of the transfer suture needles 41 extend to the bottom of the flipping semi-disc 39; wherein the fixed semi-disc 38 and the flipping semi-disc 39 are circles of the same diameter, the fixed semi-disc 38 and the flipping semi-disc 39 are hinged to form a disc, and the flipping semi-disc 39 can be flipped to a state relative to the fixed semi-disc 38, and the transfer suture needles 41 and the transfer needles 40 are made to correspond one by one, so that the folding and stitching of the tubular knitted fabric can be achieved.

[0047] For this purpose, the transfer needle 40 and the transfer suture needle 41 in the present application can correspond one-to-one with the needle hook 42 on the knitting device, so that the knitting coil 43 on the needle hook 42 can be transferred to the transfer needle 40 or the transfer suture needle 41 through the three-purpose insert 7.

[0048] Combined with Fig.10 As shown, AH are 8 states that proceed in sequence, among which:

[0049] State A is the state of the knitting loop 43 on the knitting device between the hook on the needle hook 42 and the needle latch.

[0050] State B is the state when the three-purpose insert piece 7 moves to the side of the needle hook 42 .

[0051] State C is the state where the transfer suture needle 41 or the transfer needle 40 is docked at the hook position of the needle hook 42; it should be noted that since the knitted coils 43 need to be transferred, the knitted coils 43 need to be transferred to the corresponding transfer suture needle 41 or the transfer needle 40.

[0052] State D is the state after the three-purpose insert 7 moves upward relative to the transfer suture needle 41 or the transfer needle 40. Figure 8 The thinner end (left end) is located on one side of the transfer suture needle 41 or the transfer needle 40.

[0053] State E is the state after the three-purpose insert 7 moves downward relative to the transfer suture needle 41 or the transfer needle 40. Since a step portion is formed at the head end of the three-purpose insert 7, this portion can drive the needle tongue to swing downward during the downward movement of the three-purpose insert 7, and drive the knitting coil 43 to move downward;

[0054] State F is a state in which the three-purpose insert 7 continues to move downward until the three-purpose insert 7 is located below the knitted coil 43 .

[0055] State G is the state where the three-purpose insert 7 moves upward and drives the knitting coil 43 to move upward and drives the needle tongue to move upward in reaction;

[0056] State H is a state in which the three-purpose insert 7 pushes the knitting loop 43 upward and moves it completely onto the transfer suture needle 41 or the transfer needle 40 .

[0057] In this way, the transfer of all the knitted loops 43 is completed.

[0058] Subsequently, the flipping semi-circular disk 39 is flipped and docked onto the fixed semi-circular disk 38, so that the transfer suture needles 41 and the transfer needles 40 correspond one to one for suturing.

[0059] It should be noted that the side walls of the head ends of the transfer suture needle 41 and the transfer needle 40 are both provided with grooves, and the width of the groove on the transfer suture needle 41 is greater than the width of the groove on the transfer needle 40 .

[0060] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", "some examples", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0061] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A device for transferring knitting loops and folding and stitching a cylindrical knitted fabric, characterized in that: It comprises a driving part, a suturing assembly device connecting arm, a three-purpose insert assembly connecting arm, a three-purpose insert assembly and a puncture needle tray assembly, wherein the driving part is connected to the puncture needle tray assembly, the suturing assembly device connecting arm is arranged on the upper part of the puncture needle tray assembly, the three-purpose insert assembly is movably arranged on the puncture needle tray assembly, the three-purpose insert assembly can slide up and down along the puncture needle tray assembly, and the three-purpose insert assembly connecting arm is connected to the three-purpose insert assembly.

2. The transferable knitting loop and folding and stitching device for circular knitted fabric according to claim 1, characterized in that: The three-purpose plug assembly connecting arm is connected to the linear drive mechanism.

3. The transferable knitting loop and folding and stitching device for circular knitted fabric according to claim 1, characterized in that: The three-purpose plug assembly includes a three-purpose plug advance and retreat guide wheel groove plate, a three-purpose plug, an assembly mounting frame, a plug reset radial spring, a shrinkage and expansion ring, a shrinkage and expansion ring guide screw and a travel slider. The three-purpose plug advance and retreat guide wheel groove plate is provided with a plurality of circumferentially evenly distributed sliding grooves, the number of the three-purpose plugs is the same as the number of the sliding grooves, and they are slidably arranged in the sliding grooves one by one, the plug reset radial springs are arranged on the outer circumferential sides of the plurality of three-purpose plugs, the shrinkage and expansion rings are arranged on the outer circumferential sides of the plurality of three-purpose plugs, the shrinkage and expansion ring guide screws are arranged on the shrinkage and expansion ring, the shrinkage and expansion ring advance and retreat guide grooves are arranged on the travel slider, and the shrinkage and expansion ring guide screws are penetrated into the shrinkage and expansion ring advance and retreat guide grooves.

4. The transferable knitting loop and folding and stitching device for circular knitted fabric according to claim 3, characterized in that: The travel slider is in a circular ring structure, the shrinking and expanding ring guide screws are multiple in number and are arranged on the circumference of the travel slider, one end of the shrinking and expanding ring advance and retreat guide groove is close to the center of the travel slider, and the other end is far away from the center of the travel slider.

5. The transferable knitting loop and folding and stitching device for circular knitted fabric according to claim 4, characterized in that: The driving part includes a motor, a motor gear, a bridge gear and a suturing assembly rotating gear. The motor gear is arranged on the output shaft of the motor, the motor gear is meshed with the bridge gear, the bridge gear is meshed with the suturing assembly rotating gear, and the suturing assembly rotating gear is arranged on the peripheral wall of the puncture needle disk assembly.

6. The transferable knitting loop and folding and stitching device for circular knitted fabric according to claim 5, characterized in that: The suture needle disk assembly includes a suture disk base, a pressure ring axial sliding ring, a pressure ring push rod mounting plate cover, a pressure ring push rod and a pressure ring reset spring. The suture disk base is a cylindrical structure. A cylindrical groove is arranged on the peripheral side wall of the suture disk base. The opening of the cylindrical groove is located at the upper end of the suture disk base. The pressure ring axial sliding ring is arranged in the cylindrical groove. A pressure ring push rod mounting plate cover is arranged on the upper end of the pressure ring axial sliding ring. One end of the pressure ring push rod passes through the pressure ring axial sliding ring and is connected with the pressure ring push rod mounting plate cover, and the other end passes through the bottom of the cylindrical groove. A pressure ring reset spring is sleeved on the outside of the pressure ring push rod.

7. The transferable knitting loop and folding and stitching device for circular knitted fabric according to claim 6, characterized in that: A fixed semi-circular disk and a flip semi-circular disk are provided at the bottom of the suture disk base. Transfer needles are evenly distributed on the fixed semi-circular disk, and transfer suture needles are evenly distributed on the flip semi-circular disk. The fixed semi-circular disk and the flip semi-circular disk are hinged to form a disk. The flip semi-circular disk can be flipped to a relative state with the fixed semi-circular disk, so that the transfer suture needles and the transfer needles correspond one to one.

8. The transferable knitting loop and folding and stitching device for circular knitted fabric according to claim 7, characterized in that: The transfer needle and the transfer suture needle can correspond to the needle hook one by one, and the three-purpose insert can transfer the knitted loop on the needle hook to the transfer needle or the transfer suture needle.

9. The transferable knitting loop and folding and stitching device for circular knitted fabric according to claim 1, characterized in that: The outer wall of the puncture needle disk assembly is connected with the suture assembly mounting block through a suture assembly fixing bearing.

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