A multi-directional fabric circular knitting machine forming warp thread disc transposition mechanism in a sliding contact line grouping

Abstract

This invention discloses a warp reel repositioning mechanism for a multi-directional circular loom using sliding contact line grouping. The mechanism includes warp reels and a repositioning drive mechanism. The warp reels are driven by the repositioning drive mechanism to reposition between a first warp station and a second warp station. A sliding contact line grouping device is installed on the first warp station, the second warp station, or the repositioning drive mechanism. This device divides the first warp station, the second warp station, or the repositioning drive mechanism into at least two groups along the circumference, allowing for alternating power supply control. This invention, through the cooperation of the sliding contact line grouping device and an electromagnet positioning mechanism, physically divides the warp reels into several groups. Repositioning control of different groups of warp reels can be achieved simply by controlling the power supply to the sliding contact line, simplifying the control logic and significantly reducing programming complexity.

Description

TECHNICAL FIELD

[0001] The application relates to a warp disc transposition mechanism, in particular to a warp disc transposition mechanism of a multi-directional fabric circular weaving machine with sliding contact line grouping, and belongs to the technical field of three-dimensional automatic weaving equipment. BACKGROUND

[0002] With the development of circular weaving machine weaving technology, some new weaving methods are proposed, which require the warp to be able to transposition up and down or forward and backward and also to be able to rotate and change position. Chinese patent publication No. CN 109072505 A discloses a warp disc transposition device, which captures two groups of warp tubes by respectively arranging a group of grippers above and below the warp tube. The number of grippers in each group of grippers must be the same as the number of all warp tubes, which is high in equipment cost and complex in automatic control programming logic. Moreover, the weft is arranged along the tangential direction of the tubular fabric when being wound, and the weft must be redirected to the warp direction of the tubular fabric when the warp disc is transposed up and down to avoid obstruction, or the grippers are logically divided into multiple groups for cyclic control, so that the weft always avoids interference with the warp disc transposition during the weaving process. Each gripper has a driving device, which is high in cost and extremely complex in control programming logic. SUMMARY

[0003] The application aims to provide a warp disc transposition mechanism of a multi-directional fabric circular weaving machine with sliding contact line grouping, which is simple in structure and simple in automatic control logic.

[0004] To solve the above technical problems, the technical solution adopted by the application is as follows:

[0005] A warp disc transposition mechanism of a multi-directional fabric circular weaving machine with sliding contact line grouping, characterized in that it comprises a warp disc and a transposition driving mechanism, the warp disc is driven by the transposition driving mechanism to transposition between a first warp station and a second warp station, a sliding contact line grouping device is arranged on the first warp station, the second warp station or the transposition driving mechanism, and the sliding contact line grouping device divides the first warp station, the second warp station or the transposition driving mechanism into at least two groups along the circumferential direction for alternating power supply control.

[0006] Further, the first warp station and / or the second warp station comprises a warp disc coil holder, the warp disc coil holder is provided with disc positions matched with the number of warp discs, and the disc positions are provided with warp disc positioning mechanisms.

[0007] Further, the warp disc positioning mechanism adopts gravity positioning, friction positioning, mechanical sliding bead positioning, permanent magnet positioning, pneumatic positioning or electromagnet positioning mechanism.

[0008] Further, the slide wire grouping device comprises a ring-shaped slide wire and a slide head, the warp disc is provided with ferromagnetic material, the electromagnet is fixed on the disc position of the warp disc holder, the ring-shaped slide wire is arranged outside the warp disc holder and is fixedly connected with the warp disc holder, the slide surface of the ring-shaped slide wire is located on the outer side surface of the ring-shaped slide wire, a plurality of conductive slide grooves distributed in the axial direction are arranged on the slide surface, the conductive slide grooves are divided into single group or multiple groups along the circumferential direction of the ring-shaped slide wire, the electromagnet is connected with the corresponding conductive slide groove, and the conductive slide grooves of the slide surface of the outer side surface of the ring-shaped slide wire are connected with the external power supply through the slide head.

[0009] Further, the slide wire grouping device comprises a ring-shaped slide wire and a slide head, the warp disc is provided with ferromagnetic material, the electromagnet is fixed on the disc position of the warp disc holder, the ring-shaped slide wire is arranged outside the warp disc holder and is fixedly connected with the warp disc holder, the slide surface of the ring-shaped slide wire is located on the outer side surface of the ring-shaped slide wire, a plurality of conductive slide grooves distributed in the axial direction are arranged on the slide surface, the conductive slide grooves are divided into single group or multiple groups along the circumferential direction of the ring-shaped slide wire, the electromagnet is connected with the corresponding conductive slide groove, and the conductive slide grooves of the slide surface of the outer side surface of the ring-shaped slide wire are connected with the external power supply through the slide head.

[0010] Further, the first warp position and / or the second warp position are provided with slide rails corresponding to the positions of the warp discs on one side of each disc position and / or the transposition driving mechanism, and the warp disc is provided with a slide channel matched with the slide rail.

[0011] Further, the transposition driving mechanism comprises a plurality of driving rods, and each driving rod is driven by a driving rod driving mechanism.

[0012] Further, the transposition driving mechanism comprises a plurality of driving rods, and the plurality of driving rods are divided into single group or multiple groups along the circumferential direction, each group of driving rods is fixedly connected with each other and is driven by at least one driving rod driving mechanism.

[0013] Further, the transposition driving mechanism comprises a plurality of driving rods, a ring-shaped holder, a clasp, a ring-shaped groove and a driving mechanism, one end of the plurality of driving rods is fixed on the clasp, the other end of the plurality of driving rods is slidably arranged in the rotatable ring-shaped holder, the clasp is rotationally arranged in the ring-shaped groove, and one side of the ring-shaped groove is connected with the driving mechanism and is driven by the driving mechanism.

[0014] Further, the end of the driving rod is provided with a warp disc positioning mechanism, and the warp disc positioning mechanism adopts gravity, permanent magnet or electromagnetic or pneumatic fixing mechanism.

[0015] Further, the electromagnet adopts a de-energized electromagnet or a push-pull electromagnet positioning mechanism.

[0016] Further, the driving rod driving mechanism adopts a linear driving mechanism with controllable speed and position or torque.

[0017] Compared with the prior art, the present application has the following advantages and effects: the present application physically divides the warp beam into several groups through the cooperation of the slide wire grouping device and the electromagnet positioning mechanism, and only needs to control the power supply of the slide wire to realize the transposition control of different groups of warp beams, so the control logic is simple and the programming difficulty is greatly reduced; meanwhile, the electromagnet and other warp beam positioning mechanisms are used to position the station of the warp beam, which simplifies the structure of the driving device and reduces the equipment cost. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of embodiment 1 of the slide wire grouping multi-directional fabric circular weaving machine forming warp beam transposition mechanism of the present application.

[0019] Figure 2 is a schematic view of embodiment 2 of the slide wire grouping multi-directional fabric circular weaving machine forming warp beam transposition mechanism of the present application.

[0020] Figure 3 is a schematic view of embodiment 3 of the slide wire grouping multi-directional fabric circular weaving machine forming warp beam transposition mechanism of the present application.

[0021] Figure 4 is a schematic view of embodiment 4 of the slide wire grouping multi-directional fabric circular weaving machine forming warp beam transposition mechanism of the present application.

[0022] Figure 5 is a schematic view of embodiment 5 of the slide wire grouping multi-directional fabric circular weaving machine forming warp beam transposition mechanism of the present application.

[0023] Figure 6 is a schematic view of embodiment 6 of the slide wire grouping multi-directional fabric circular weaving machine forming warp beam transposition mechanism of the present application.

[0024] Figure 7 is a schematic view of embodiment 7 of the slide wire grouping multi-directional fabric circular weaving machine forming warp beam transposition mechanism of the present application.

[0025] Figure 8 is a schematic view of embodiment 8 of the slide wire grouping multi-directional fabric circular weaving machine forming warp beam transposition mechanism of the present application. DETAILED DESCRIPTION

[0026] In order to describe the technical solutions adopted by the present application in detail and achieve the predetermined technical purposes, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments, and the technical means or technical features in the embodiments of the present application can be replaced without creative labor, which will be described in detail below with reference to the drawings and in combination with the embodiments.

[0027] Example 1:

[0028] like Figure 1 As shown, the present invention discloses a multi-directional fabric circular loom warp reel changing mechanism with sliding contact line grouping, comprising a warp reel and a changing drive mechanism. The warp reel is driven by the changing drive mechanism to change position between a first warp station and a second warp station. A sliding contact line grouping device is provided on the first warp station, the second warp station, or the changing drive mechanism. The sliding contact line grouping device divides the first warp station, the second warp station, or the changing drive mechanism into at least two groups for alternating power supply control along the circumference.

[0029] This embodiment is a vertical circular loom. Both the first warp station and the second warp station include a warp coil frame 1. The warp coil frame 1 is provided with a number of warp coils 2 matching the number of warp coils 2, and a warp coil positioning mechanism is provided on the coil.

[0030] The warp reel at the second warp station uses a gravity positioning mechanism to fix it to its position on the lower warp reel frame by gravity. The warp reel positioning mechanism at the first warp station uses an electromagnet fixing mechanism. The sliding contact line grouping device includes an annular sliding contact line 3 and sliding contact heads 4. Ferromagnetic material is provided on the warp reel. The electromagnet is fixed on the warp reel frame. The annular sliding contact line 3 is located outside the warp reel frame 1 at the first warp station and does not contact the warp reel frame 1. The sliding contact surface of the annular sliding contact line 3 is located on the inner side of the annular sliding contact line 3. Several conductive grooves are provided on the sliding contact surface along the axial direction. The conductive grooves are divided into single or multiple groups along the circumference of the annular sliding contact line. Each electromagnet is connected to the conductive groove on the outer side of the annular sliding contact line 3 through a set of sliding contact heads 4. The conductive groove is connected to an external control power supply. By cooperating with the sliding contact line grouping device and the electromagnet positioning mechanism, the warp discs are physically divided into several groups. The switching control of different groups of warp discs can be achieved simply by controlling the power supply to the sliding contact line. The control logic is simple, greatly reducing programming difficulty. Here, either a de-energized electromagnet or a push-pull electromagnet positioning mechanism is used. The de-energized electromagnet provides attraction when de-energized, and the push-pull electromagnet ensures that the warp disc positioning is not affected when there is a power outage during the circumferential grouping transition or when the entire machine loses power. The ferromagnetic material is soft iron or a composite of ferromagnetic materials.

[0031] The lower side of each disc position of the first warp disc holder and the upper side of each disc position of the second warp disc holder are provided with slide rails 5, and the warp disc 2 is provided with a slide groove matched with the slide rails 5. The warp disc 2 is arranged on the slide rails 5 through the slide groove and slides along the slide rails 5. The end between the upper and lower slide rails only has a gap to facilitate the rotation of the upper and lower work stations and the passing of weft, and the slide groove structure can be a fully closed cylinder structure or a semi-closed groove structure. The trajectory accuracy of the upward and downward movement of the warp disc is ensured through the guidance of the slide rails 5. The end or disc position of the warp disc 2 is also provided with a buffer device.

[0032] The transposition driving mechanism includes a plurality of driving rods 6, which are divided into at least two groups in the circumferential direction. Each group of driving rods 6 is fixedly connected to each other and driven by at least one driving rod driving mechanism 7. The driving mechanism 7 adopts a pneumatic cylinder, an oil cylinder, an electric push rod or other linear motion components. The grouping of the driving rods 6 corresponds to the grouping of the slide contact wire grouping device of the first warp station. After the lower warp disc is pushed up to the position by the push rod, it is fixed by the positioning mechanism. When the push rod reaches the upper part, the upper warp disc loses the holding of the positioning mechanism and is reset downward under the action of gravity along with the push rod. Of course, in order to improve the transposition speed and reduce the transposition impact force of the warp disc, the end of the push rod can be provided with a warp disc positioning mechanism. The positioning mechanism is a controlled electromagnet or pneumatic component. By increasing the pulling force of the push rod and the warp disc during the operation of the warp disc and matching the speed change of the push rod, the transposition speed and stability of the warp disc are improved. The same is applicable to the gravity of the warp disc. The controlled pneumatic component at the end of the driving rod is a gas suction or inflation structure. The driving rod driving can be a linear driving mechanism with controllable speed and position or torque, such as a servo or step motor driving mechanism.

[0033] The side away from the transposition driving mechanism of each disc position of the warp disc holder of the first warp station is provided with a buffer 12. When the transposition driving mechanism drives the warp disc upward to the first warp station, the buffer 12 is needed to buffer the warp disc due to the fast driving speed.

[0034] The weft disc 11 can be arranged on the inner side or the outer side of the warp disc. The weft disc 11 makes a surrounding movement around the circular fabric. During the movement, the weft is tangential to the fabric. The transposition driving mechanism and the warp disc are driven and transposed by the cooperation of the weft disc movement and the slide contact wire grouping device to avoid the position of the weft, so as to avoid the interference of the weft to the transposition of the warp disc. Of course, the weft disc return mechanism is provided to make the weft be in the gap between the adjacent weft, and all the driving rods can be synchronized with the disc positioning mechanism to realize the transposition of the disc.

[0035] Embodiment 2:

[0036] As Figure 2As shown, the present invention discloses a multi-directional fabric circular loom warp reel changing mechanism with sliding contact line grouping, comprising a warp reel and a changing drive mechanism. The warp reel is driven by the changing drive mechanism to change position between a first warp station and a second warp station. A sliding contact line grouping device is provided on the first warp station, the second warp station, or the changing drive mechanism. The sliding contact line grouping device divides the first warp station, the second warp station, or the changing drive mechanism into at least two groups for alternating power supply control along the circumference.

[0037] This embodiment is a vertical circular loom. Both the first warp station and the second warp station include a warp coil frame 1. The warp coil frame 1 is provided with a number of warp coils 2 matching the number of warp coils 2, and a warp coil positioning mechanism is provided on the coil.

[0038] The warp reel at the second warp station uses a gravity positioning mechanism, fixed to its position on the lower reel frame by gravity. The warp reel positioning mechanism at the first warp station uses an electromagnet fixing mechanism. The sliding contact line grouping device includes an annular sliding contact line 3 and a sliding contact head 4. Ferromagnetic material is provided on the warp reel 2. The electromagnet is fixed to the reel frame 1. The annular sliding contact line 3 is located on the outside of the reel frame 1 and is fixedly connected to it. The sliding contact surface of the annular sliding contact line 3 is located on its outer surface. Several conductive grooves are provided on the sliding contact surface along the axial direction. The conductive grooves are divided into single or multiple groups along the circumference of the annular sliding contact line. The electromagnet is connected to the corresponding conductive groove. The conductive grooves on the outer surface of the annular sliding contact line 3 are connected to an external control power supply through the sliding contact head 4. By cooperating with the sliding contact line grouping device and the electromagnet positioning mechanism, the warp discs are physically divided into several groups. The switching control of different groups of warp discs can be achieved simply by controlling the power supply to the sliding contact line. The control logic is simple, greatly reducing programming difficulty. Here, either a de-energized electromagnet or a push-pull electromagnet positioning mechanism is used. The de-energized electromagnet provides attraction when de-energized, and the push-pull electromagnet ensures that the warp disc positioning is not affected when there is a power outage during the circumferential grouping transition or when the entire machine loses power. The ferromagnetic material is soft iron or a composite of ferromagnetic materials.

[0039] Each warp reel in the first warp station has a slide rail 5 on its lower side and each warp reel in the second warp station has a slide path matching the slide rail 5. The warp reel 2 slides along the slide rail 5 via the slide path. Only a gap is left between the ends of the upper and lower slide rails to facilitate rotation of the upper and lower stations and passage of the weft yarn. The slide path structure can be a fully enclosed cylindrical structure or a semi-enclosed groove structure. The guide of the slide rail 5 ensures the accuracy of the warp reel's vertical movement. A buffer device is also provided at the end or on the reel of the warp reel 2.

[0040] The shifting drive mechanism comprises multiple drive rods 6, each driven by a drive rod drive mechanism 7. Through electrical control, the grouping of drive rods 6 changes accordingly with the shifting of the sliding contact lines on the warp reel frame 1, ensuring their mutual correspondence. The drive mechanism 7 employs cylinders, hydraulic cylinders, electric push rods, or other linear motion components. To improve shifting speed and reduce the impact force during warp reel shifting, utilizing the characteristic that the drive rod is both a power source and a braking source, a warp reel positioning mechanism can be installed at the end of the push rod. This positioning mechanism is a controlled electromagnet or pneumatic component. By increasing the pulling force between the push rod and the warp reel during operation, combined with the speed change of the push rod, the shifting speed and stability of the warp reel are improved. The aforementioned also applies to the gravity of the warp reel. The controlled pneumatic component at the end of the drive rod is an air suction or air expansion structure. The drive rod drive can be a linear drive mechanism with controllable speed, position, or torque, such as a servo or stepper motor drive mechanism.

[0041] Each warp reel in the first warp station has a buffer 12 on the side of the reel furthest from the transposition drive mechanism. When the transposition drive mechanism drives the warp reel upwards to the first warp station, the buffer 12 is needed to cushion the warp reel due to the high driving speed.

[0042] The weft reel 11 is positioned outside or inside the warp reel. The weft reel 11 revolves around the circular fabric. During this movement, the weft yarns move tangentially along the fabric. Through the coordination of the sliding contact thread grouping device and the weft reel's movement, the warp reel grouping and shifting mechanisms are driven to shift positions to avoid the weft yarns' positions, thus preventing interference with the warp reel's shifting. Alternatively, if a weft reel return mechanism is in place, ensuring the weft yarns are positioned between adjacent warp yarns, all drive rods can simultaneously move up and down in coordination with the reel positioning mechanism to achieve reel shifting.

[0043] Example 3:

[0044] like Figure 3 As shown, the present invention discloses a multi-directional fabric circular loom warp reel changing mechanism with sliding contact line grouping, comprising a warp reel and a changing drive mechanism. The warp reel is driven by the changing drive mechanism to change position between a first warp station and a second warp station. A sliding contact line grouping device is provided on the first warp station, the second warp station, or the changing drive mechanism. The sliding contact line grouping device divides the first warp station, the second warp station, or the changing drive mechanism into at least two groups for alternating power supply control along the circumference.

[0045] This embodiment is a vertical circular loom. Both the first warp station and the second warp station include a warp coil frame 1. The warp coil frame 1 of the first warp station is provided with a number of warp coils 2 matching the number of warp coils 2, and a warp coil positioning mechanism is provided on the coil.

[0046] The warp reels at the second warp station are fixed to their positions on the warp reel frame by gravity positioning. The warp reel positioning mechanism at the first warp station uses an electromagnet fixing mechanism. The sliding contact line grouping device includes an annular sliding contact line 3 and a sliding contact head 4. Ferromagnetic material is applied to the warp reel 2. The electromagnet is fixed to its position on the warp reel frame 1. The annular sliding contact line 3 is located outside the warp reel frame 1 and is fixedly connected to it. The sliding contact surface of the annular sliding contact line 3 is located on its outer surface, and several conductive grooves are provided on the surface along the axial direction. The electromagnet is connected to the corresponding conductive groove. The conductive grooves on the outer surface of the annular sliding contact line 3 are connected to an external control power supply through the sliding contact head 4. By cooperating with the electromagnet positioning mechanism, the warp reels are physically divided into two groups. Only the power supply to the sliding contact line needs to be controlled to achieve the switching control of the warp reels in different groups. The control logic is simple, greatly reducing programming difficulty. The electromagnet used here is either a de-energized electromagnet or a push-pull electromagnet positioning mechanism. The de-energized electromagnet provides attraction when de-energized, while the push-pull electromagnet ensures that the warp reel's positioning is not affected when the entire machine is powered down. The ferromagnetic material is soft iron or a composite material containing ferromagnetic materials.

[0047] Each warp reel in the first warp station has a slide rail 5 on its lower side and each warp reel in the second warp station has a slide path matching the slide rail 5. The warp reel 2 slides along the slide rail 5 via the slide path. Only a gap is left between the ends of the upper and lower slide rails to facilitate rotation of the upper and lower stations and passage of the weft yarn. The slide path structure can be a fully enclosed cylindrical structure or a semi-enclosed groove structure. The guide of the slide rail 5 ensures the accuracy of the warp reel's vertical movement. A buffer device is also provided at the end or on the reel of the warp reel 2.

[0048] The warp reel shifting drive mechanism comprises multiple drive rods 6, each with one end fixed to the others and driven by at least one drive rod drive mechanism 7. The drive mechanism 7 employs a cylinder, hydraulic cylinder, electric push rod, or other linear motion components. After the lower warp reel is pushed upwards to its position by the push rod, it is fixed by the positioning mechanism. When the push rod reaches the upper part, the upper warp reel loses the support of the positioning mechanism and resets under gravity as it moves downwards with the push rod. To improve the shifting speed and reduce the impact force during warp reel shifting, utilizing the characteristic that the drive rod is both a power source and a braking source, a warp reel positioning mechanism can be installed at the end of the push rod. This positioning mechanism is a controlled electromagnet or pneumatic component. By increasing the pulling force between the push rod and the warp reel during operation, combined with the speed change of the push rod, the shifting speed and stability of the warp reel are improved. The same applies to the gravity of the warp reel. The controlled pneumatic component at the end of the drive rod is an air suction or air expansion structure. The drive rod can be a linear drive mechanism with controllable speed, position, or torque, such as a servo or stepper motor drive mechanism.

[0049] Each warp reel in the first warp station has a buffer 12 on the side of the reel furthest from the transposition drive mechanism. When the transposition drive mechanism drives the warp reel upwards to the first warp station, the buffer 12 is needed to cushion the warp reel due to the high driving speed.

[0050] The weft reel 11 is located outside the warp reel. The weft reel 11 moves around the circular fabric. During the movement, the weft yarn is tangential to the fabric. When changing positions, the weft yarn needs to be moved into the gap between adjacent warp yarns. Then, the drive rod 6 moves up and down as a whole to push the warp reel of the second warp station to the first warp station. Through the grouping control of the sliding contact line grouping device, the warp reel of the rotation is released or attracted by the electromagnet. Then, the drive rod 6 moves down as a whole to transport the released warp reel to the second warp station.

[0051] Example 4:

[0052] like Figure 4 As shown, the present invention discloses a multi-directional fabric circular loom warp reel changing mechanism with sliding contact line grouping, comprising a warp reel and a changing drive mechanism. The warp reel is driven by the changing drive mechanism to change position between a first warp station and a second warp station. A sliding contact line grouping device is provided on the first warp station, the second warp station, or the changing drive mechanism. The sliding contact line grouping device divides the first warp station, the second warp station, or the changing drive mechanism into at least two groups for alternating power supply control along the circumference.

[0053] This embodiment is a vertical circular loom. The first warp station includes a warp coil frame 1. The warp coil frame 1 of the first warp station is provided with a number of warp coils 2 matching the number of warp coils 2, and a warp coil positioning mechanism is provided on the coil.

[0054] The push rod end is equipped with a warp reel positioning mechanism, which is fixed to the upper end of the drive rod by gravity, electromagnet, or pneumatic components. The sliding contact line grouping device includes an annular sliding contact line 3 and sliding contact heads 4. Ferromagnetic material is provided on the warp reels. Electromagnets are fixed on the warp reel frame positions. The annular sliding contact line 3 is located on the outside of the warp reel frame 1 and does not contact it. The sliding contact surface of the annular sliding contact line 3 is located on its inner side. Several conductive grooves are provided on the sliding contact surface along the axial direction. Each electromagnet is connected to the conductive groove on the outer side of the annular sliding contact line 3 through a set of sliding contact heads 4. The conductive grooves are connected to an external control power supply. By cooperating with the electromagnet positioning mechanism, the warp reels are physically divided into two groups. Only the power supply of the sliding contact line needs to be controlled to realize the switching control of the warp reels in different groups. The control logic is simple and greatly reduces the programming difficulty. The electromagnet used here is either a de-energized electromagnet or a push-pull electromagnet positioning mechanism. The de-energized electromagnet provides attraction when de-energized, while the push-pull electromagnet ensures that the warp reel's positioning is not affected when the entire machine is powered down. The ferromagnetic material is soft iron or a composite material containing ferromagnetic materials.

[0055] The shifting drive mechanism includes multiple drive rods 6, an annular frame 8, a retaining ring 9, an annular groove 10, and a drive mechanism 7. One end of each drive rod 6 is fixed to the retaining ring 9, and the other end of each drive rod 6 is slidably disposed within the rotatable annular frame 8. The retaining ring 9 is rotatably disposed within the annular groove 10, and one side of the annular groove 10 is connected to and driven by the drive mechanism 7. The drive mechanism 7 employs a cylinder, hydraulic cylinder, electric push rod, or other linear motion components. To avoid interference between the drive mechanism 7 and its components, at least two drive mechanisms 7 are evenly distributed along the outer edge of the annular groove 10 to synchronously drive the annular groove 10.

[0056] The warp reel frame at the first warp station has a slide rail 5 on the underside of each reel and at the end of the drive rod 6. The warp reel 2 has a track that matches the slide rail 5. The warp reel 2 slides along the slide rail 5 via the track. A gap is left between the ends of the slide rails to facilitate rotation of the two stations and passage of the weft yarn. The track structure can be a fully enclosed cylindrical structure or a semi-enclosed groove structure. The guide of the slide rail 5 ensures the accuracy of the warp reel's vertical movement. A buffer device is also provided at the end or on the reel of the warp reel 2.

[0057] Each warp reel in the first warp station has a buffer 12 on the side of the reel furthest from the transposition drive mechanism. When the transposition drive mechanism drives the warp reel upwards to the first warp station, the buffer 12 is needed to cushion the warp reel due to the high driving speed.

[0058] To improve the warp reel switching speed and reduce the impact force during warp reel switching, the gravity of the warp reel, or the force of electromagnets or pneumatic components, and the characteristic of the drive rod being both a power source and a braking source, are utilized. By accelerating and then decelerating the drive rod during the warp reel switching, the switching speed and smoothness of the warp reel are improved. The drive rod can be a linear drive mechanism with controllable speed, position, or torque, such as a servo or stepper motor drive mechanism.

[0059] The weft reel 11 is positioned outside the warp reel. The weft reel 11 revolves around the circular fabric, with the weft yarns running tangentially along the fabric during movement. When changing positions, the weft yarns need to be moved into the gaps between adjacent warp yarns. Then, the drive rod 6 moves up and down, pushing the warp reel from the second warp position to the first warp position. Through the grouping control of the sliding contact line grouping device, the rotating warp reel is released or attracted by an electromagnet. Then, the drive rod 6 moves downwards, transporting the released warp reel to the second warp position. In this embodiment, a rotation drive mechanism is connected to the outer side of the annular frame 8 to drive rotation. The drive rod can rotate with the second warp position, driving the warp reel's up-and-down movement via the annular groove 10 and the drive mechanism 7.

[0060] In this embodiment, a second set of sliding contact line grouping devices and corresponding electromagnet positioning mechanisms can also be set at the first warp workstation to jointly complete the warp reel repositioning operation.

[0061] Example 5:

[0062] like Figure 5 As shown, the present invention discloses a multi-directional fabric circular loom warp reel changing mechanism with sliding contact line grouping, comprising a warp reel and a changing drive mechanism. The warp reel is driven by the changing drive mechanism to change position between a first warp station and a second warp station. A sliding contact line grouping device is provided on the first warp station, the second warp station, or the changing drive mechanism. The sliding contact line grouping device divides the first warp station, the second warp station, or the changing drive mechanism into at least two groups for alternating power supply control along the circumference.

[0063] This embodiment is a horizontal circular loom. The first warp station includes a warp disc frame 1, and the warp disc frame 1 has disc positions matching the number of warp discs 2. Each disc position is equipped with a warp disc positioning mechanism, which includes permanent magnet positioning, friction positioning, or mechanical ball positioning. When using permanent magnet positioning, the warp discs 2 are provided with ferromagnetic material, which is soft iron or a composite containing iron. Friction positioning or mechanical ball positioning involves setting elastic friction bodies or elastic balls on each disc position. Through cooperation with the corresponding surfaces or recesses of the warp discs, a positioning force is provided to the warp discs. The function of permanent magnet positioning is the same as described above. Alternatively, the friction between the warp disc slide and the slide rail itself can also be used for positioning.

[0064] The shifting drive mechanism includes multiple drive rods 6, which are divided into at least two groups along the circumferential direction. Each group of drive rods 6 is fixedly connected to each other and driven by at least one drive rod drive mechanism 7. The drive rods 6 are slidably arranged within the annular frame. The drive mechanism 7 is a pneumatic cylinder, hydraulic cylinder, or electric push rod.

[0065] A warp reel positioning mechanism is provided at the end of the drive rod 6, which uses an electromagnet fixing mechanism. The sliding contact line grouping device includes an annular sliding contact line 3 and a sliding contact head 4. Ferromagnetic material is provided on the warp reel, and the electromagnet is fixed to the end of the drive rod 6. The attraction force between the warp reel and the electromagnet at the end of the drive rod is greater than the positioning force of the warp reel positioning mechanism of the warp reel frame. The annular sliding contact line 3 is located on the outside of the annular frame 8 and is fixed to the annular frame. The sliding contact surface of the annular sliding contact line 3 is located on the outer surface of the annular sliding contact line 3. Several conductive grooves are provided on the sliding contact surface along the axial direction. The conductive grooves are divided into single or multiple groups along the circumference of the annular sliding contact line. The electromagnet is connected to the corresponding conductive groove. The conductive grooves on the outer surface of the annular sliding contact line 3 are connected to an external control power supply through the sliding contact head 4. The sliding contact line grouping corresponds to the drive rod grouping and is powered together by the sliding contact line control power supply. A photoelectric position switch with a fixed position is provided in the stroke direction of the drive rod to participate in the drive motion control. By cooperating with a sliding contact line grouping device and an electromagnet positioning mechanism, the drive rod is physically divided into several groups. Only the power supply to the sliding contact line needs to be controlled to achieve the switching control of different groups of warp discs. The control logic is simple, greatly reducing programming difficulty. Through the pulling force of the controlled electromagnet at the end of the push rod, utilizing the characteristic that the drive rod is both a power source and a braking source, the drive rod accelerates and then decelerates when switching the warp discs forward and backward, making the warp disc switching both fast and smooth. The drive rod can be driven by a linear drive mechanism with controllable speed, position, or torque, such as a servo or stepper motor drive mechanism.

[0066] The warp reel frame at the first warp station has a slide rail 5 on the rear side of each reel and at the end of the drive rod 6. The warp reel 2 has a track that matches the slide rail 5. The warp reel 2 slides along the slide rail 5 via the track. A gap is left between the ends of the front and rear slide rails to facilitate the rotation of the two stations and the passage of the weft yarn. The track structure can be a fully enclosed cylindrical structure or a semi-enclosed groove structure. The guide of the slide rail 5 ensures the accuracy of the warp reel's vertical movement. A spring buffer device is also provided at the end of the warp reel 2.

[0067] Each warp reel in the first warp station has a buffer 12 on the side of the reel furthest from the transposition drive mechanism. When the transposition drive mechanism drives the warp reel upwards to the first warp station, the buffer 12 is needed to cushion the warp reel due to the high driving speed.

[0068] The weft disc 11 can be positioned outside or inside the warp disc. The weft disc 11 revolves around the circular fabric. During this movement, the weft yarn runs tangentially along the fabric. Because the attraction force of the electromagnet at the drive rod is much greater than the positioning force of the positioning mechanism at the first warp position, after the push rod pushes the rear warp disc to the first warp disc position, those without the attraction force of the electromagnet at the end of the push rod are held in place by the positioning force of the warp disc frame 1, while those with the attraction force of the electromagnet at the end of the push rod return to the second warp position with the push rod. Through the coordination of the sliding contact thread grouping device and the weft disc movement, the warp discs are grouped and driven to change positions to avoid the weft yarn's position, thus preventing interference from the weft yarn's movement. Of course, if a weft disc is on the outside and there is a weft yarn return mechanism, causing the weft yarn to be positioned in the gap between adjacent warp yarns, all drive rods can synchronously cooperate with the warp disc positioning mechanism to achieve warp disc repositioning.

[0069] In this embodiment, a second set of sliding contact line grouping devices and corresponding electromagnet positioning mechanisms can also be set at the first warp workstation to jointly complete the warp reel repositioning operation.

[0070] Example 6:

[0071] like Figure 6 As shown, the present invention discloses a multi-directional fabric circular loom warp reel changing mechanism with sliding contact line grouping, comprising a warp reel and a changing drive mechanism. The warp reel is driven by the changing drive mechanism to change position between a first warp station and a second warp station. A sliding contact line grouping device is provided on the first warp station, the second warp station, or the changing drive mechanism. The sliding contact line grouping device divides the first warp station, the second warp station, or the changing drive mechanism into at least two groups for alternating power supply control along the circumference.

[0072] This embodiment is a horizontal circular loom. The first warp station includes a warp disc frame 1, and the warp disc frame 1 of the first warp station has disc positions matching the number of warp discs 2. Each disc position is equipped with a warp disc positioning mechanism, which includes permanent magnet positioning, friction positioning, or mechanical ball positioning. When using permanent magnet positioning, the warp discs 2 are provided with ferromagnetic material, which is soft iron or a composite containing iron, etc. Friction positioning or mechanical ball positioning involves setting elastic friction bodies or elastic balls on each disc position. Through the cooperation with the corresponding surface or pit of the warp disc, a positioning force is provided to the warp disc. The function of permanent magnet positioning is the same as described above. Of course, the friction between the warp disc slide and the slide rail itself can also be used for positioning.

[0073] The displacement drive mechanism comprises multiple drive rods 6, an annular frame 8, a retaining ring 9, an annular groove 10, and a drive mechanism 7. One end of each drive rod 6 is fixed to the retaining ring 9, while the other end slides within the rotatable annular frame 8. The retaining ring 9 is rotatably positioned within the annular groove 10, and one side of the annular groove 10 is connected to and driven by the drive mechanism 7. The drive mechanism 7 utilizes a cylinder, hydraulic cylinder, electric actuator, or other linear motion components. To avoid interference between the drive mechanism 7 and its components, at least two drive mechanisms 7 are evenly distributed along the outer edge of the annular groove 10 to synchronously drive the annular groove 10.

[0074] A warp reel positioning mechanism is provided at the end of the drive rod 6, which uses an electromagnet fixing mechanism. The attraction force between the warp reel and the electromagnet at the end of the drive rod is greater than the positioning force of the warp reel positioning mechanism at the first warp station. The sliding contact line grouping device includes an annular sliding contact line 3 and sliding contact heads 4. Ferromagnetic material is provided on the warp reel. The electromagnet is fixed to the end of the drive rod 6. The annular sliding contact line 3 is located on the outside of the annular frame 8 and does not contact the annular frame 8. The sliding contact surface of the annular sliding contact line 3 is located on the inner side of the annular sliding contact line 3. Several conductive grooves are provided on the sliding contact surface along the axial direction. Each electromagnet is connected to the conductive groove on the outer side of the annular sliding contact line 3 through a set of sliding contact heads 4. The conductive groove is connected to an external control power supply. By cooperating with the electromagnet positioning mechanism, the warp reels are physically divided into two groups. Only the power supply of the sliding contact line needs to be controlled to realize the switching control of the warp reels in different groups. The control logic is simple and greatly reduces the programming difficulty. By utilizing the pulling force of a controlled electromagnet at the end of the push rod, and taking advantage of the fact that the drive rod is both a power source and a braking source, the drive rod accelerates and then decelerates when changing the warp reel position, making the warp reel position both fast and smooth. The drive rod can be a linear drive mechanism with controllable speed, position, or torque, such as a servo or stepper motor drive mechanism.

[0075] The warp reel frame at the first warp station has a slide rail 5 on the rear side of each reel and at the end of the drive rod 6. The warp reel 2 has a track that matches the slide rail 5. The warp reel 2 slides along the slide rail 5 via the track. A gap is left between the ends of the slide rails to facilitate rotation of the two stations and passage of the weft yarn. The track structure can be a fully enclosed cylindrical structure or a semi-enclosed groove structure. The guide of the slide rail 5 ensures the accuracy of the warp reel's vertical movement. Spring buffer devices are also provided at both ends of the warp reel 2.

[0076] Each warp reel in the first warp station has a buffer 12 on the side of the reel furthest from the transposition drive mechanism. When the transposition drive mechanism drives the warp reel upwards to the first warp station, the buffer 12 is needed to cushion the warp reel due to the high driving speed.

[0077] The weft disc 11 is located outside the warp disc. The weft disc 11 revolves around the circular fabric, with the weft yarns tangential to the fabric during movement. During repositioning, the weft yarns need to be moved into the gaps between adjacent warp yarns. Then, the drive rod 6 slides as a whole. Because the attraction force of the drive rod electromagnet is much greater than the positioning force of the positioning mechanism at the first warp position, after the push rod pushes the repositioned warp disc to the first warp disc position, those without the attraction force of the push rod end electromagnet are held in place by the positioning force of the warp disc ring frame 1, while those with the attraction force of the push rod end electromagnet return to the second warp position with the push rod, completing the warp disc repositioning. In this embodiment, a rotation drive mechanism is connected to the outside of the ring frame 8 to drive rotation. The drive rod can rotate with the second warp position, driving the horizontal repositioning of the warp discs through the annular groove 10 and the drive mechanism 7.

[0078] In this embodiment, a second set of sliding contact line grouping devices and corresponding electromagnet positioning mechanisms can also be set at the first warp workstation to jointly complete the warp reel repositioning operation.

[0079] Example 7:

[0080] like Figure 7 As shown, the present invention discloses a multi-directional fabric circular loom warp reel changing mechanism with sliding contact line grouping, comprising a warp reel and a changing drive mechanism. The warp reel is driven by the changing drive mechanism to change position between a first warp station and a second warp station. A sliding contact line grouping device is provided on the first warp station, the second warp station, or the changing drive mechanism. The sliding contact line grouping device divides the first warp station, the second warp station, or the changing drive mechanism into at least two groups for alternating power supply control along the circumference.

[0081] This embodiment is a horizontal circular loom. The first warp station includes a warp coil frame 1. The warp coil frame 1 of the first warp station is provided with a number of coil positions matching the number of warp coils 2, and a warp coil positioning mechanism is provided on the coil positions.

[0082] The end of the drive rod 6 is equipped with a warp reel positioning mechanism, which uses a permanent magnet or pneumatic positioning mechanism. The warp reel 2 is covered with ferromagnetic material, which is soft iron or a composite containing iron. The warp reel positioning mechanism at the first warp station uses an electromagnet fixing mechanism, whose positioning force is much greater than the fixing force of the permanent magnet at the end of the drive rod 6 on the warp reel. The sliding contact line grouping device includes an annular sliding contact line 3 and a sliding contact head 4. The annular sliding contact line 3 is located on the outside of the annular frame 8 and fixed to the annular frame. The sliding contact surface of the annular sliding contact line 3 is located on its outer surface, and several conductive grooves are provided on the sliding contact surface distributed axially. The electromagnet is connected to the corresponding conductive groove, and the conductive grooves on the outer surface of the annular sliding contact line 3 are connected to an external control power supply through the sliding contact head 4. By cooperating with the sliding contact line grouping device and the electromagnet positioning mechanism, the drive rod is physically divided into two groups. Only the power supply to the sliding contact line needs to be controlled to achieve the switching control of the warp discs in different groups. The control logic is simple, greatly reducing programming difficulty. Utilizing the traction force of a permanent magnet or pneumatic force at the end of the push rod, and taking advantage of the drive rod's characteristic of being both a power source and a braking source, the drive rod accelerates and then decelerates during the switching of the warp discs, making the warp disc switching both fast and smooth. The drive rod can be driven by a linear drive mechanism with controllable speed, position, or torque, such as a servo or stepper motor drive mechanism.

[0083] The displacement drive mechanism comprises multiple drive rods 6, an annular frame 8, a retaining ring 9, an annular groove 10, and a drive mechanism 7. One end of each drive rod 6 is fixed to the retaining ring 9, while the other end slides within the rotatable annular frame 8. The retaining ring 9 is rotatably positioned within the annular groove 10, and one side of the annular groove 10 is connected to and driven by the drive mechanism 7. The drive mechanism 7 utilizes a cylinder, hydraulic cylinder, electric actuator, or other linear motion components. To avoid interference between the drive mechanism 7 and its components, at least two drive mechanisms 7 are evenly distributed along the outer edge of the annular groove 10 to synchronously drive the annular groove 10.

[0084] The warp reel frame at the first warp station has a slide rail 5 on the underside of each reel and at the end of the drive rod 6. The warp reels 2 have tracks on both sides that match the slide rails 5. The warp reels 2 slide along the slide rails 5 via these tracks, with a gap between the ends of the tracks to facilitate rotation of the two stations and passage of the weft yarn. The track structure can be a fully enclosed cylindrical structure or a semi-enclosed groove-shaped structure. The guide rails 5 ensure the accuracy of the warp reel's vertical movement. A spring buffer device is also provided at the end of the warp reel 2.

[0085] Each warp reel in the first warp station has a buffer 12 on the side of the reel furthest from the transposition drive mechanism. When the transposition drive mechanism drives the warp reel upwards to the first warp station, the buffer 12 is needed to cushion the warp reel due to the high driving speed.

[0086] The weft disc 11 is located outside the warp disc. The weft disc 11 revolves around the circular fabric, with the weft yarns tangential to the fabric during movement. When changing positions, the weft yarns need to be moved into the gaps between adjacent warp yarns. Then, the drive rod 6 slides as a whole, pushing the warp disc from the second warp position to the first warp position. Through the grouping control of the sliding contact line grouping device, when the electromagnet at the first warp position has no attraction, the drive rod can pull the corresponding warp disc to the second warp position. If the electromagnet has attraction, this attraction is much greater than the attraction of the permanent magnet at the end of the drive rod to the warp disc, and the corresponding warp disc remains at the first warp position, thus completing the warp disc repositioning. In this embodiment, a rotation drive mechanism is connected to the outside of the annular frame 8 to drive rotation. The drive rod can rotate with the second warp position, driving the horizontal repositioning of the warp discs through the annular groove 10 and the drive mechanism 7.

[0087] In this embodiment, a second set of sliding contact line grouping devices and corresponding electromagnet positioning mechanisms can also be set in the ring frame 8 to jointly complete the warp reel repositioning operation.

[0088] Example 8:

[0089] like Figure 8 As shown, the present invention discloses a multi-directional fabric circular loom warp reel changing mechanism with sliding contact line grouping, comprising a warp reel and a changing drive mechanism. The warp reel is driven by the changing drive mechanism to change position between a first warp station and a second warp station. A sliding contact line grouping device is provided on the first warp station, the second warp station, or the changing drive mechanism. The sliding contact line grouping device divides the first warp station, the second warp station, or the changing drive mechanism into at least two groups for alternating power supply control along the circumference.

[0090] This embodiment is a horizontal circular loom. Both the first warp station and the second warp station include a warp coil frame 1. The warp coil frame 1 is provided with a number of warp coils 2 matching the number of warp coils 2, and a warp coil positioning mechanism is provided on the coil.

[0091] The warp reel 2 is provided with ferromagnetic material, which is soft iron or a composite containing iron, etc. The warp reel of the second warp station is positioned by permanent magnet, friction, or mechanical ball bearings, and is fixed in the position of the lower reel frame by the corresponding positioning force. The warp reel positioning mechanism of the first warp station is an electromagnet fixing mechanism. The sliding contact line grouping device includes an annular sliding contact line 3 and a sliding contact head 4. The warp reel 2 is provided with magnetic material. The electromagnet is fixed in the position of the warp reel frame 1. The annular sliding contact line 3 is sleeved on the outside of the warp reel frame 1 and fixedly connected to the warp reel frame 1. The sliding contact surface of the annular sliding contact line 3 is located on the outer surface of the annular sliding contact line 3. Several conductive grooves are provided on the sliding contact surface along the axial direction. The conductive grooves are divided into single or multiple groups along the circumference of the annular sliding contact line. The electromagnet is connected to the corresponding conductive groove. The conductive grooves on the outer surface of the annular sliding contact line 3 are connected to an external control power supply through the sliding contact head 4. By cooperating with the sliding contact line grouping device and the electromagnet positioning mechanism, the warp discs are physically divided into several groups. The repositioning of different groups of warp discs can be achieved simply by controlling the power supply and drive of the sliding contact line. The control logic is simple, greatly reducing programming difficulty. The magnetic material is soft iron or a composite containing magnetic materials.

[0092] Each warp reel position in the first warp station and each warp reel position in the second warp station are equipped with a slide rail. The warp reel 2 has matching tracks on both sides. The slide rail positions of the two stations correspond one-to-one, with only a gap between the ends of the slide rails to facilitate rotation of the two stations and passage of the weft yarn. The warp reel 2 slides horizontally along the slide rail via the tracks, ensuring the accuracy of the driving direction and guaranteeing that the warp reel can be accurately driven into the corresponding warp position. Elastic buffer devices are also provided at the ends or warp positions of the warp reel 2.

[0093] The end of the drive rod 6 is equipped with a warp reel positioning mechanism. This mechanism uses a permanent magnet, a controlled electromagnet, or a controlled pneumatic positioning mechanism. The controlled pneumatic component at the end of the drive rod is a suction or expansion structure. The shifting drive mechanism comprises multiple drive rods 6. Each drive rod 6 is driven by a drive rod drive mechanism 7. The attraction force of the permanent magnet, controlled electromagnet, or controlled pneumatic component at the end of the drive rod on the warp reel is less than the fixing force of the electromagnet on the warp reel at the first warp station. The drive mechanism 7 uses a cylinder, hydraulic cylinder, electric push rod, or other linear motion components. Through electrical control, the grouping of the drive rods 6 changes accordingly with the shifting of the sliding contact lines on the warp reel frame 1, ensuring their correspondence. This limitation does not apply to the overall forward and backward shifting of the drive rods 6. After the rear warp spool moves forward along the axis to its position under the push rod, it is fixed in the first warp position by the electromagnet positioning mechanism because the attraction force of the electromagnet on the warp spool is greater than the positioning force of the warp spool positioning mechanism. When the push rod reaches the front, the front warp spool loses the positioning force of the electromagnet positioning mechanism and moves backward to the second warp position under the attraction force of the permanent magnet at the end of the push rod or the pulling force of the controlled electromagnet or pneumatic component. Through the pulling force between the permanent magnet or controlled electromagnet or pneumatic component at the end of the push rod and the warp spool, and utilizing the characteristic that the drive rod is both a power source and a braking source, the drive rod accelerates and then decelerates when the warp spool is changing position, making the warp spool changing both fast and smooth. The drive rod can be a linear drive mechanism with controllable speed, position, or torque, such as a servo or stepper motor drive mechanism.

[0094] Each warp reel in the first warp station has a buffer 12 on the side of the reel furthest from the transposition drive mechanism. When the transposition drive mechanism drives the warp reel upwards to the first warp station, the buffer 12 is needed to cushion the warp reel due to the high driving speed.

[0095] The weft disc 11 can be positioned outside or inside the warp disc. The weft disc 11 revolves around the circular fabric. During this movement, the weft yarns move tangentially along the fabric. Through the coordination of the sliding contact thread grouping device and the weft disc's movement, the warp discs and the warp discs are grouped and repositioned to avoid the weft yarns' positions, thus preventing interference with the warp disc's repositioning. Alternatively, if the weft disc is positioned outside and there is a weft return mechanism, allowing the weft yarns to be positioned between adjacent warp yarns, all drive rods can synchronously cooperate with the warp disc positioning mechanism to achieve warp disc repositioning.

[0096] The embodiments described above and their variations, or combinations with other transposition mechanisms, can be combined internally and externally to form a loom with double or multiple weaving mechanisms. By controlling the transposition of the warp discs and coordinating with the movement of the weft threads, fabrics with more complex weaving structures can be woven.

[0097] In this embodiment, the up and down direction is the natural direction, the direction away from the driving end is the front, and the direction closer to the driving end is the rear.

[0098] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments without departing from the scope of the present invention, based on the technical essence of the present invention and within the spirit and principles of the present invention, shall still fall within the protection scope of the present invention.

Claims

1. A multi-directional fabric forming warp reel changing mechanism for a sliding contact line grouping multi-directional fabric circular loom, characterized in that: It includes a warp reel and a transposition drive mechanism. The warp reel is driven by the transposition drive mechanism to transpose between a first warp station and a second warp station. A sliding contact line grouping device is provided on the first warp station, the second warp station, or the transposition drive mechanism. The sliding contact line grouping device divides the first warp station, the second warp station, or the transposition drive mechanism into at least two groups along the circumference for alternating power supply control. The first warp station and / or the second warp station includes a warp reel frame. The sliding contact line grouping device includes an annular sliding contact line and a sliding contact head. An electromagnet is fixed on the warp coil frame. The annular sliding contact line is set on the outside of the warp coil frame and is fixedly connected to the warp coil frame. The sliding contact surface of the annular sliding contact line is located on the outer surface of the annular sliding contact line. Several conductive grooves are provided on the sliding contact surface along the axial direction. The conductive grooves are divided into single or multiple groups along the circumference of the annular sliding contact line. The electromagnet is connected to the corresponding conductive groove. The conductive grooves on the outer surface of the annular sliding contact line are connected to an external power source through the sliding contact head. Alternatively, the sliding contact line grouping device may include an annular sliding contact line and sliding contacts. Electromagnets are fixed on the warp coil frame. The annular sliding contact line is located on the outside of the warp coil frame and does not contact the warp coil frame. The sliding contact surface of the annular sliding contact line is located on the inner side of the annular sliding contact line. Several conductive grooves are provided on the sliding contact surface along the axial direction. The conductive grooves are divided into single or multiple groups along the circumference of the annular sliding contact line. Each electromagnet is connected to the conductive groove on the outer side of the annular sliding contact line through a set of sliding contacts. The conductive grooves are connected to an external control power supply.

2. The multi-directional fabric forming warp reel changing mechanism for sliding contact line grouping according to claim 1, characterized in that: The first warp station and / or the second warp station each have a slide rail on one side of each warp disc and / or the shifting drive mechanism corresponding to each warp disc position, and the warp discs are provided with slide tracks that match the slide rails.

3. The multi-directional fabric circular loom warp reel changing mechanism for sliding contact line grouping according to claim 1, characterized in that: The shifting drive mechanism includes multiple drive rods, each of which is driven by a drive rod drive mechanism.

4. The multi-directional fabric forming warp reel changing mechanism for sliding contact line grouping according to claim 1, characterized in that: The shifting drive mechanism includes multiple drive rods, which are divided into single or multiple groups along the circumferential direction. Each group of drive rods is fixedly connected to each other and driven by at least one drive rod drive mechanism.

5. The multi-directional fabric forming warp reel changing mechanism for sliding contact line grouping according to claim 1, characterized in that: The shifting drive mechanism includes multiple drive rods, an annular frame, a retaining ring, an annular groove, and a drive mechanism. One end of each drive rod is fixed to the retaining ring, and the other end of each drive rod is slidably disposed within the rotatable annular frame. The retaining ring is rotatably disposed within the annular groove, and one side of the annular groove is connected to the drive mechanism and driven by the drive mechanism.

6. A multi-directional fabric forming warp reel changing mechanism for sliding contact line grouping according to claim 3, 4, or 5, characterized in that: The end of the drive rod is provided with a warp reel positioning mechanism, which adopts a gravity, permanent magnet, electromagnetic or pneumatic fixing mechanism.

7. The multi-directional fabric forming warp reel changing mechanism for sliding contact line grouping according to claim 1, characterized in that: The electromagnet is a de-energized electromagnet or a push-pull electromagnet positioning mechanism.

8. A multi-directional fabric forming warp reel changing mechanism for sliding contact line grouping according to claim 3, 4, or 5, characterized in that: The drive rod drive mechanism adopts a linear drive mechanism with controllable speed, position, or torque.

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