Device for transferring a knitting loop and a folding and loop-to-loop seaming of a circular knitted fabric
The integration of a tri-functional jack assembly with a linear driving mechanism addresses the high mounting difficulty in seaming devices for circular knitted fabrics, enhancing alignment and reducing failure rates.
Patent Information
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- ZHEJIANG JIAZHILI INTELLIGENT TECH CO LTD
- Filing Date
- 2025-10-03
- Publication Date
- 2026-05-27
AI Technical Summary
Existing seaming devices for circular knitted fabrics face high mounting difficulty due to separate assembly bodies requiring precise alignment, leading to increased failure rates.
A device incorporating a tri-functional jack assembly that slides up and down along a stitching needle dial, simplifying the structure by integrating multiple components into a single assembly, and utilizing a linear driving mechanism for easier alignment.
Reduces mounting complexity and improves efficiency by ensuring concentricity of components, thereby reducing failure rates and simplifying the mounting process.
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Figure IMGAF001_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to the technical field of textile equipment, and in particular to a device for transferring a knitting loop and a folding and loop-to-loop seaming of a circular knitted fabric.BACKGROUND
[0002] A previous seaming device is as shown in FIG. 11, including a driving motor 2, a seaming assembly device mounting body 28, a motor transmission gear 29, a seaming assembly rotating gear 30, a stitching needle dial 31, an upper loop-transferring jack pressure plate 32, an upper loop-transferring jack pressure plate transfer arm 33, a transferring latch needle jack assembly 34, a transferring latch needle jack assembly transfer arm 35, a lower loop-transferring jack top plate 36, a lower loop-transferring jack top plate mounting base 37, and the like. The stitching needle dial 31, the upper loop-transferring jack pressure plate 32, the transferring latch needle jack assembly 34 and the lower loop-transferring jack top plate 36 are separate assembly bodies. In actual mounting, it is necessary to ensure that the four circles are on the same center line, which leads to great difficulty in mounting and high failure rate.SUMMARY
[0003] An objective of the present disclosure is to provide a device for transferring a knitting loop and a folding and loop-to-loop seaming of a circular knitted fabric to solve the technical problem of high mounting difficulty in the prior art. Many technical effects that can be produced by preferred technical solutions among the technical solutions provided by the present disclosure are described in detail below.
[0004] To achieve the objective described above, the present disclosure provides the following technical solutions.
[0005] A device for transferring a knitting loop and a folding and loop-to-loop seaming of a circular knitted fabric includes a driving portion, a seaming assembly device connecting arm, a tri-functional jack assembly connecting arm, a tri-functional jack assembly, and a stitching needle dial component. The driving portion is connected to the stitching needle dial component, the seaming assembly device connecting arm is arranged at an upper portion of the stitching needle dial component, the tri-functional jack assembly is movably arranged on the stitching needle dial component, the tri-functional jack assembly is capable of sliding up and down along the stitching needle dial component, and the tri-functional jack assembly connecting arm is connected to the tri-functional jack assembly.
[0006] Preferably, the tri-functional jack assembly connecting arm is connected to a linear driving mechanism.
[0007] Preferably, the tri-functional jack assembly includes a tri-functional jack advance-retreat guide wheel slotted disc, a tri-functional jack, an assembly mounting bracket, a jack return radial spring, a collet, a collet guide pin, and a stroke slider. The tri-functional jack advance-retreat guide wheel slotted disc is provided with a plurality of chutes uniformly distributed in a circumferential direction, the number of the tri-functional jacks is the same as that of the chutes, and the tri-functional jacks are slidably arranged in the chutes in one-to-one correspondence; the jack return radial spring is arranged on outer peripheral sides of the plurality of tri-functional jacks, and the collet is arranged on the outer peripheral sides of the plurality of tri-functional jacks; the collet guide pin is arranged on the collet, a collet advance-retreat guide groove is arranged on the stroke slider, and the collet guide pin penetrates into the collet advance-retreat guide groove.
[0008] Preferably, the stroke slider is of an annular structure, a plurality of collet guide pins are disposed on a circumferential direction of the stroke slider, one end of the collet advance-retreat guide groove is close to the center of the stroke slider, and the other end of the collet advance-retreat guide groove is away from the center of the stroke slider.
[0009] Preferably, the driving portion includes a motor, a motor gear, a carrier gear, and a seaming assembly rotating gear; the motor gear is arranged on an output shaft of the motor, the motor gear meshes with the carrier gear, the carrier gear meshes with the seaming assembly rotating gear, and the seaming assembly rotating gear is arranged on a peripheral wall of the stitching needle dial component.
[0010] Preferably, the stitching needle dial component includes a seaming disc base, a pressure ring axial sliding collar, a pressure ring ejector rod mounting plate cover, a pressure ring ejector rod, and a pressure ring return spring. The seaming disc base is of a cylindrical structure, a peripheral wall of the seaming disc base is provided with a cylindrical groove, an opening of the cylindrical groove is located at an upper end of the seaming disc base, the pressure ring axial sliding collar is arranged in the cylindrical groove, the pressure ring ejector rod mounting plate cover is arranged at an upper end of the pressure ring axial sliding collar, one end of the pressure ring ejector rod penetrates through the pressure ring axial sliding collar and is connected to the pressure ring ejector rod mounting plate cover, the other end of the pressure ring ejector rod penetrates through the bottom of the cylindrical groove, and the pressure ring ejector rod is sleeved with the pressure ring return spring.
[0011] Preferably, the bottom of the seaming disc base is provided with a fixed semicircular disc and a pivoting semicircular disc, transfer needles are uniformly distributed on the fixed semicircular disc, and transfer felting needles are uniformly distributed on the pivoting semicircular disc. The fixed semicircular disc and the pivoting semicircular disc are hinged to form a complete circular disc; the pivoting semicircular disc is capable of being pivoted to a position opposite to the fixed semicircular disc, making the transfer felting needles correspond to the transfer needles one by one.
[0012] Preferably, the transfer needles and the transfer felting needles are able to correspond to latch needles one by one, and the tri-functional jack is capable of transferring a knitting loop on the hook to the transfer needle or the transfer felting needle.
[0013] Preferably, an outer wall of the stitching needle dial component is connected to a seaming assembly mounting block through a seaming assembly locating bearing.
[0014] By adopting the foregoing technical solutions, the present disclosure at least has the following beneficial effects.
[0015] A device for transferring a knitting loop and a folding and loop-to-loop seaming of a circular knitted fabric includes a driving portion, a seaming assembly device connecting arm, a tri-functional jack assembly connecting arm, a tri-functional jack assembly, and a stitching needle dial component. The driving portion is connected to the stitching needle dial component, the seaming assembly device connecting arm is arranged at an upper portion of the stitching needle dial component, the tri-functional jack assembly is movably arranged on the stitching needle dial component, the tri-functional jack assembly can slide up and down along the stitching needle dial component, and the tri-functional jack assembly connecting arm is connected to the tri-functional jack assembly. By arranging the tri-functional jack assembly, the tri-functional jack assembly can slide up and down along the stitching needle dial component. Such a structure solves the problem of difficult mounting in a conventional technical solution with multi-concentric components.
[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory merely and are not intended to limit the present disclosureBRIEF DESCRIPTION OF THE DRAWINGS
[0017] To describe the technical solutions in the embodiments of the present disclosure or in the prior art more clearly, the following briefly introduces the accompanying drawings required for describing the embodiments. Apparently, the accompanying drawings in the following description show merely some embodiments of the present disclosure, and a person of ordinary skill in the art may still derive other drawings from these accompanying drawings without creative efforts. FIG. 1 is a structural diagram of a device for transferring a knitting loop and a folding and loop-to-loop seaming of a circular knitted fabric according to an embodiment of the present disclosure; FIG. 2 is a diagram of a cross-sectional structure of a tri-functional jack assembly according to an embodiment of the present disclosure; FIG. 3 is a structural diagram of a tri-functional jack advance-retreat guide wheel slotted disc according to an embodiment of the present disclosure; FIG. 4 is a structural diagram of a tri-functional jack assembly according to an embodiment of this application; FIG. 5 is a diagram of a cross-sectional structure of a device for transferring a knitting loop and a folding and loop-to-loop seaming of a circular knitted fabric according to an embodiment of the present disclosure; FIG. 6 is a structural diagram of a sewing disc base according to an embodiment of the present disclosure; FIG. 7 is a diagram of a front-view structure of a tri-functional jack according to an embodiment of the present disclosure; FIG. 8 is a diagram of a top-view structure of a tri-functional jack according to an embodiment of the present disclosure; FIG. 9 is a structural diagram of a folding and loop-to-loop seaming state of a device for transferring a knitting loop and a folding and loop-to-loop seaming of a circular knitted fabric according to an embodiment of the present disclosure; FIG. 10 is a structural diagram of a transfer state of a knitting loop according to an embodiment of the present disclosure; FIG. 11 is a structural diagram of existing equipment according to an embodiment of the present disclosure.
[0018] In the drawings: 1-driving portion; 2-seaming assembly device connecting arm; 3-tri-functional jack assembly connecting arm; 4-tri-functional jack assembly; 5-stiching needle dial component; 6-tri-functional jack advance-retreat guide wheel slotted disc; 7-tri-functional jack; 8-assembly mounting bracket; 9-jack return radial spring; 10-collet; 11-collet guide pin; 12-stroke slider; 13-chute; 14-collet advance-retreat guide groove; 15-motor; 16-motor gear; 17-carrier gear; 18-seaming assembly rotating gear; 19-seaming disc base; 20-pressure ring axial sliding collar; 21-pressure ring ejector rod mounting plate cover; 22-pressure ring ejector rod; 23-pressure ring return spring; 24-cylindrical groove; 25-seaming assembly locating bearing; 26-seaming assembly mounting block; 27-driving motor; 28-mounting body of seaming assembly device; 29-motor transmission gear; 30-seaming assembly rotating gear; 31-stitching needle dial; 32-upper loop-transferring jack pressure plate; 33-upper loop-transferring jack pressure plate transfer arm; 34-transferring latch needle jack assembly; 25-transferring latch needle jack assembly transfer arm; 36-lower loop-transferring jack top plate; 37-lower loop-transferring jack top plate mounting base; 38-fixed semicircular disc; 39-pivoting semicircular disc; 40-transfer needle; 41-transfer felting needle; 42-latch needle; 43-knitting loop.DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] To make the objective, technical solutions and advantages of the present disclosure more clearly, the technical solutions of the present disclosure are described in detail below. Apparently, the described embodiments are merely a part rather than all of the embodiments of the present disclosure. All other implementations obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.
[0020] A specific embodiment of the present disclosure provides a device for transferring a knitting loop and a folding and loop-to-loop seaming of a circular knitted fabric, as shown in FIG. 1, mainly including a driving portion 1, a seaming assembly device connecting arm 2, a tri-functional jack assembly connecting arm 3, a tri-functional jack assembly 4, and a stitching needle dial component 5.
[0021] The driving portion 1 is connected to the stitching needle dial component 5 and is configured to drive the stitching needle dial component 5.
[0022] The seaming assembly device connecting arm 2 is arranged at an upper portion of the stitching needle dial component 5.
[0023] The tri-functional jack assembly 4 is movably arranged on the stitching needle dial component 5 and can slide up and down along the stitching needle dial component 5.
[0024] The tri-functional jack assembly connecting arm 3 is connected to the tri-functional jack assembly 4 and is connected to the driving mechanism to drive the tri-functional assembly 4 to move along the stitching needle dial component 5. Specifically, the tri-functional jack assembly connecting arm 3 is connected to a linear driving mechanism, where the linear driving mechanism here may be a linear motor, an air cylinder, a hydraulic cylinder, and the like capable of achieving linear direction driving.
[0025] In the present disclosure, four assemblies in the prior art (shown in FIG. 11) can be simplified into two assemblies, and three assembly jacks (shown in FIG. 11, the upper loop-transferring jack pressure plate 32, the transferring latch needle jack assembly 34 and the lower loop-transferring jack top plate 36) in the prior art are changed into a tri-functional jack. Such a way simplifies the structure of the equipment and thus reduce mounting steps and improving mounting efficiency. In the present disclosure, the upper loop-transferring jack pressure plate 32, the transferring latch needle jack assembly 34 and the lower loop-transferring jack top plate 36 in the conventional technology are replaced by arranging the tri-functional jack assembly 4. During actual mounting, it is only necessary to ensure the concentricity of the tri-functional jack assembly 4 and the stitching needle dial component 5, which greatly reduces the mounting difficulty of the equipment.
[0026] In a specific embodiment of the present disclosure, the tri-functional jack assembly 4 includes a tri-functional jack advance-retreat guide wheel slotted disc 6, a tri-functional jack 7, an assembly mounting bracket 8, a jack return radial spring 9, a collet 10, a collet guide pin 11, and a stroke slider 12. With reference to FIG. 2 to FIG. 5, the tri-functional jack advance-retreat guide wheel slotted disc 6 is provided with multiple chutes 13 which are uniformly distributed along a circumferential direction, the number of the tri-functional jacks 7 is the same as that of the chutes 13, and the tri-functional jacks 7 can be slidingly arranged in the chutes 13 in one-to-one correspondence. The jack return radial spring 9 is arranged on outer peripheral sides of the multiple tri-functional jacks 7, and the collet 10 is arranged on the outer peripheral sides of the multiple tri-functional jacks 7; the collet guide pin 11 is arranged on the collet 10, a collet advance-retreat guide groove 14 is arranged on the stroke slider 12, and the collet guide pin 11 penetrates into the collet advance-retreat guide groove 14, and there is a smooth arc in the middle of the collet advance-retreat guide groove 14, which is used to locate the center distance of the tri-functional jack.
[0027] An upper end surface of the tri-functional jack advance-retreat guide wheel slotted disc 6 is provided with an annular groove, and the multiple chutes 13 are arranged in the annular groove. Each chute 13 faces an axial direction of the tri-functional jack advance-retreat guide wheel slotted disc 6, and the tri-functional jack 7 can slide towards or away from the axial direction of the tri-functional jack advance-retreat guide wheel slotted disc 6 in the chute 13.
[0028] The multiple tri-functional jacks are annularly arranged, the jack return radial spring 9 is arranged at the outer peripheral side of the tri-functional jack 7, and the tri-functional jack 7 is tightened by the jack return radial spring 9. In addition, the collet 10 is arranged on an inner peripheral side of the tri-functional jack 7, so that the tri-functional jack 7 can be pushed by the collet 10 to slide toward a direction away from the axis of the tri-functional jack advance-retreat guide wheel slotted disc 6.
[0029] Further, the collet guide pin 11 is further disposed. The collet guide pin 11 is further connected to the collet 10, and the collet guide pin 11 penetrates through the collet advance-retreat guided groove 14 on the stroke slider 12. As such, the stroke slider 12 can push an action of the collet guide pin 11 to drive the collet 10 to expand, thereby driving the tri-functional jack 7 in the peripheral direction to slide through the expansion of the collet 10.
[0030] Specifically, there may be multiple collet guide pins 11 in the present disclosure, which may be uniformly distributed along a circumferential direction of the collet 10. Therefore, it is also necessary to provide a corresponding number of collet advance-retreat guide grooves 14 on the stroke slider 12. The stroke slider 12 is of a circular structure, there are multiple collet guide pins 11, which are arranged on a circumferential direction of the stroke slider 12, one end of the collet advance-retreat guide groove 14 is close to the center of the stroke slider 12, and the other end of the collet advance-retreat guide groove 14 is away from the center of the stroke slider 12.
[0031] In a specific embodiment of the present disclosure, with reference to FIG. 5, the driving portion 1 includes a motor 15, a motor gear 16, a carrier gear 17, and a seaming assembly rotating gear 18. The motor gear 16 is arranged on an output shaft of the motor 15, the motor gear 16 meshes with the carrier gear 17, the carrier gear 17 meshes with the seaming assembly rotating gear 18, and the seaming assembly rotating gear 18 is arranged on a peripheral wall of the stitching needle dial component 5. In this case, the motor gear 16 is driven by the motor 15 to rotate to drive the carrier gear 17, and then the carrier gear 17 drives the seaming assembly rotating gear 18 to rotate, thereby achieving the action on the stitching needle dial component 5.
[0032] In some embodiments, the stitching needle dial component 5 includes a seaming disc base 19, a pressure ring axial sliding collar 20, a pressure ring ejector rod mounting plate cover 21, a pressure ring ejector rod 22, and a pressure ring return spring 23.
[0033] The seaming disc base 19 is of a cylindrical structure, and has a thick sidewall, where the sidewall is provided with a cylindrical groove 24, an opening of the cylindrical groove 24 is located at an upper end of the seaming disc base 19, the pressure ring axial sliding collar 20 is arranged in the cylindrical groove 24, the pressure ring ejector rod mounting plate cover 21 is arranged at an upper end of the pressure ring axial sliding collar 20, one end of the pressure ring ejector rod 22 penetrates through the pressure ring axial sliding collar 20 and is connected to the pressure ring ejector rod mounting plate cover 21, and the other end of the pressure ring ejector rod penetrates through the bottom of the cylindrical groove 24,. The pressure ring ejector rod 22 is sleeved with the pressure ring return spring 23.
[0034] In some embodiments, an outer wall of the stitching needle dial component 5 is connected to a seaming assembly mounting block 26 through a seaming assembly locating bearing 25, and the sewing assembling mounting block 26 is configured to mount the stitching needle dial component 5 to equipment.
[0035] The bottom of the seaming disc base 19 is provided with a fixed semicircular disc 38 and a pivoting semicircular disc 39. With reference to FIG. 9, transfer needles 40 are uniformly distributed on the fixed semicircular disc 38, where the transfer needles 40 are vertically arranged and partially extend to a position below the fixed semicircular disc 38. Transfer felting needles 41 are uniformly distributed on the pivoting semicircular disc 39, where the transfer felting needles 41 are vertically arranged and partially extend to a position below the pivoting semicircular disc 39. The fixed semicircular disc 38 and the pivoting semicircular disc 39 are circles having the same diameter and are hinged to form a complete circular disc. The pivoting semicircular disc 39 can be pivoted to a position opposite to the fixed semicircular disc 38, making the transfer felting needles 41 correspond to the transfer needles 40 one by one. Therefore, the folding and loop-to-loop seaming of the circular knitted fabric can be achieved.
[0036] In this case, the transfer needles 40 and the transfer felting needles 41 can correspond to latch needles 42 one by one, so that the tri-functional jack 7 can transfer a knitting loop 43 on the latch needle 42 to the transfer needle 40 or the transfer felting needle 41.
[0037] With reference to FIG. 10, A to H show eight states carried out in sequence.
[0038] State A is a state of the knitting loop 43 on a knitting device between a hook and a latch of the latch needle 42.
[0039] State B is a state when the tri-functional jack 7 moves to one side of the latch needle 42.
[0040] State C is a state where either the transfer felting needle 41 or the transfer needle 40 is butted against a hook position of the latch needle 42, it should be noted that as the knitting loop 43 needs to be transferred, the knitting loop 43 needs to be transferred to a corresponding transfer felting needle 41 or transfer needle 40.
[0041] State D is a state after the tri-functional jack 7 moves upwards relative to the transfer felting needle 41 or the transfer needle 40. At this time, a thinner end at the head of the tri-functional jack 7 (refer to a left end in FIG. 8) is located at one side of either the transfer felting needle 41 or the transfer needle 40.
[0042] State E is a state after the tri-functional jack 7 moves downwards relative to the transfer felting needle 41 or the transfer needle 40. As the head position of the tri-functional jack 7 forms a step portion, this portion can drive the latch to swing downward in the downward movement of the tri-functional jack 7, and drives the knitting loop 43 to move downward.
[0043] State F is a state when the tri-functional jack 7 continues to move until the tri-functional jack 7 is located below the knitting loop 43.
[0044] State G is a state where the tri-functional jack 7 moves upward and drives the knitting loop 43 to move upward and simultaneously drives the latch to turn upward.
[0045] State H is a state where the tri-purpose jack 7 pushes the knitting loop 43 to move upward until the knitting loop is completely moved to the transfer felting needle 41 or the transfer needle 40.
[0046] Therefore, the transfer of the knitting loop 43 is completed.
[0047] Subsequently, the pivoting semicircular disc 39 is pivoted and in butt joint with the fixed semicircular disc 38, so that the transfer felting needles 41 and the transfer needles 40 are in one-to-one correspondence for sewing.
[0048] It should be noted that a sidewall of the head of each of the transfer felting needle 41 and the transfer needle 40 is provided with a slot, and a slot width on the transfer felting needle 41 is greater than that on the transfer needle 40.
[0049] In the descriptions of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "examples", "specific examples" or "some examples" mean that specific features, structures, materials or characteristics described in conjunction with this embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the illustrative expression of the foregoing terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can bond and combine different embodiments or examples and features of different embodiments or examples described in this specification without contradicting each other.
[0050] The above description merely illustrates specific implementations of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any modification or substitution readily conceivable by a person skilled in the art within the technical scope disclosed in the present disclosure shall fall within the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure shall be subject to the scope defined by the appended claims.
Examples
Embodiment Construction
[0019]To make the objective, technical solutions and advantages of the present disclosure more clearly, the technical solutions of the present disclosure are described in detail below. Apparently, the described embodiments are merely a part rather than all of the embodiments of the present disclosure. All other implementations obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.
[0020]A specific embodiment of the present disclosure provides a device for transferring a knitting loop and a folding and loop-to-loop seaming of a circular knitted fabric, as shown in FIG. 1, mainly including a driving portion 1, a seaming assembly device connecting arm 2, a tri-functional jack assembly connecting arm 3, a tri-functional jack assembly 4, and a stitching needle dial component 5.
[0021]The driving portion 1 is connected to the stitching needle dial compo...
Claims
1. A device for transferring a knitting loop and a folding and loop-to-loop seaming of a circular knitted fabric, comprising a driving portion, a seaming assembly device connecting arm, a tri-functional jack assembly connecting arm, a tri-functional jack assembly, and a stitching needle dial component, wherein the driving portion is connected to the stitching needle dial component, the seaming assembly device connecting arm is arranged at an upper portion of the stitching needle dial component, the tri-functional jack assembly is movably arranged on the stitching needle dial component, the tri-functional jack assembly is capable of sliding up and down along the stitching needle dial component, and the tri-functional jack assembly connecting arm is connected to the tri-functional jack assembly.
2. The device for transferring a knitting loop and a folding and loop-to-loop seaming of a circular knitted fabric according to claim 1, wherein the tri-functional jack assembly connecting arm is connected to a linear driving mechanism.
3. The device for transferring a knitting loop and a folding and loop-to-loop seaming of a circular knitted fabric according to claim 1, wherein the tri-functional jack assembly comprises a tri-functional jack advance-retreat guide wheel slotted disc, a tri-functional jack, an assembly mounting bracket, a jack return radial spring, a collet, a collet guide pin, and a stroke slider; the tri-functional jack advance-retreat guide wheel slotted disc is provided with a plurality of chutes uniformly distributed in a circumferential direction, the number of the tri-functional jacks is the same as that of the chutes, and the tri-functional jacks are slidably arranged in the chutes in one-to-one correspondence; the jack return radial spring is arranged on outer peripheral sides of the plurality of tri-functional jacks, and the collet is arranged on the outer peripheral sides of the plurality of tri-functional jacks; the collet guide pin is arranged on the collet, a collet advance-retreat guide groove is arranged on the stroke slider, and the collet guide pin penetrates into the collet advance-retreat guide groove.
4. The device for transferring a knitting loop and a folding and loop-to-loop seaming of a circular knitted fabric according to claim 3, wherein the stroke slider is of an annular structure, a plurality of collet guide pins are disposed on a circumferential direction of the stroke slider, one end of the collet advance-retreat guide groove is close to the center of the stroke slider, and the other end of the collet advance-retreat guide groove is away from the center of the stroke slider.
5. The device for transferring a knitting loop and a folding and loop-to-loop seaming of a circular knitted fabric according to claim 4, wherein the driving portion comprises a motor, a motor gear, a carrier gear, and a seaming assembly rotating gear; the motor gear is arranged on an output shaft of the motor, the motor gear meshes with the carrier gear, the carrier gear meshes with the seaming assembly rotating gear, and the seaming assembly rotating gear is arranged on a peripheral wall of the stitching needle dial component.
6. The device for transferring a knitting loop and a folding and loop-to-loop seaming of a circular knitted fabric according to claim 5, wherein the stitching needle dial component comprises a seaming disc base, a pressure ring axial sliding collar, a pressure ring ejector rod mounting plate cover, a pressure ring ejector rod, and a pressure ring return spring; the seaming disc base is of a cylindrical structure, a peripheral wall of the seaming disc base is provided with a cylindrical groove, an opening of the cylindrical groove is located at an upper end of the seaming disc base, the pressure ring axial sliding collar is arranged in the cylindrical groove, the pressure ring ejector rod mounting plate cover is arranged at an upper end of the pressure ring axial sliding collar, one end of the pressure ring ejector rod penetrates through the pressure ring axial sliding collar and is connected to the pressure ring ejector rod mounting plate cover, the other end of the pressure ring ejector rod penetrates through the bottom of the cylindrical groove, and the pressure ring ejector rod is sleeved with the pressure ring return spring.
7. The device for transferring a knitting loop and a folding and loop-to-loop seaming of a circular knitted fabric according to claim 6, wherein the bottom of the seaming disc base is provided with a fixed semicircular disc and a pivoting semicircular disc, transfer needles are uniformly distributed on the fixed semicircular disc, and transfer felting needles are uniformly distributed on the pivoting semicircular disc; the fixed semicircular disc and the pivoting semicircular disc are hinged to form a complete circular disc; the pivoting semicircular disc is capable of being pivoted to a position opposite to the fixed semicircular disc, making the transfer felting needles correspond to the transfer needles one by one.
8. The device for transferring a knitting loop and a folding and loop-to-loop seaming of a circular knitted fabric according to claim 7, wherein the transfer needles and the transfer felting needles are able to correspond to latch needles one by one, and the tri-functional jack is capable of transferring a knitting loop on the hook to the transfer needle or the transfer felting needle.
9. The device for transferring a knitting loop and a folding and loop-to-loop seaming of a circular knitted fabric according to claim 1, wherein an outer wall of the stitching needle dial component is connected to a seaming assembly mounting block through a seaming assembly locating bearing.