Yarn changer, wrapping device and sectional type yarn wrapping device

Abstract

The invention discloses a yarn changing device, a wrapping device and a sectional type yarn wrapping device.The yarn changing device comprises a yarn shaft base body, a channel is formed in the axis position of the yarn shaft base body, the rear end of a supporting pipe extends into the channel and is located in the channel, and the yarn shaft base body is arranged in the channel; the first yarn guiding device is fixedly installed on the front portion of the supporting pipe and used for adsorbing the end of yarn wrapped outside the yarn shaft base body, the yarn cutting device is installed at the front end of the supporting pipe, and the ratchet wheel motor is installed at the rear end of the yarn shaft base body. One end of the traction rope is connected with an output shaft of the ratchet motor, and the other end of the traction rope penetrates through the channel and the supporting pipe and then is connected with the yarn cutting device to achieve yarn cutting. The blocky protrusions serve as rails so that the supporting pipe can slide in the length direction of the channel. The wrapping device comprises a yarn replacing device. The wrapping device is easy to operate, the yarn replacing process can be automatically completed, automatic production is completed, the production efficiency is greatly improved, and the purpose that various functional yarns spirally and sectionally wrap the surface of the base yarn can be achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of yarn preparation and winding, and in particular relates to a yarn changer, a winding device and a segmented yarn winding device. Background Art

[0002] Against the backdrop of continuous advancements in modern science and technology, progress in smart textile research, and increasing consumer demand for clothing quality are driving a diversification in demand for various functional yarns. Within this framework, the application of wrapped yarns continues to attract attention. Wrapped yarns are constructed by tightly wrapping one or more yarns around a base yarn in a spiral. This yarn structure enhances the yarn's wear resistance and tensile strength, demonstrating excellent functional versatility. These yarns are widely used in fields including, but not limited to, sportswear and medical textiles, expanding the application prospects of textiles that meet specific performance requirements.

[0003] At present, a wrapping device has been developed that can produce a single type of yarn wrapped in a spiral form on the surface of a base yarn. When preparing a wrapping yarn in which multiple functional yarns are wrapped around the surface of a base yarn, the yarn needs to be replaced manually. This process is cumbersome and has low production efficiency, and cannot meet the problem of continuous production. Summary of the Invention

[0004] In view of the deficiencies in the prior art, an object of the present invention is to provide a yarn changer.

[0005] Another object of the present invention is to provide a wrapping device that can realize segmented wrapping of multiple functional yarns during the production process, and construct a wrapped yarn in which different functional yarns are segmentedly wrapped around a base yarn.

[0006] The purpose of the present invention is achieved through the following technical solutions.

[0007] A yarn changer, comprising: a yarn cutter, a first yarn guide, a support tube, a first compression spring, a traction rope, a yarn spool base, and a motor; the yarn spool base is used to wrap yarn around the outside; a channel is formed at the axial position of the yarn spool base; the rear end of the support tube extends into and is located within the channel; the front end of the support tube is located outside the channel; the first yarn guide is fixedly mounted at the front of the support tube and is used to absorb the end of the yarn wrapped around the outside of the yarn spool base; the yarn cutter is mounted at the front end of the support tube; and the motor is mounted at the rear end of the yarn spool base;

[0008] The yarn shear comprises: two blades and a second compression spring, the two blades are hinged and the blades are arranged opposite to each other, the two ends of the second compression spring are respectively connected to one blade, and the second compression spring applies a thrust to the two blades to open and separate the blades;

[0009] One end of the traction rope is connected to the output shaft of the motor, and the other end of the traction rope passes through the channel and the support tube and is connected to the yarn shear. The end of the traction rope away from the motor is divided into two connecting ropes, each of which is connected to a blade. When the motor rotates and drives the length of the traction rope to shorten, the two blades close and the blades touch, thus achieving yarn shearing.

[0010] The support tube is formed with a strip opening along its length, and a block-shaped protrusion is formed inside the channel. The block-shaped protrusion is located in the strip opening and serves as a track to enable the support tube to slide along the length direction of the channel.

[0011] A limiting protrusion is fixedly installed in the support tube in front of the block-shaped protrusion, and the first compression spring is limited in the channel between the block-shaped protrusion and the limiting protrusion.

[0012] Preferably, the support tube includes: a first section of the tube body and a second section of the tube body, the first section of the tube body and the second section of the tube body are connected, the angle between the axes of the first section of the tube body and the second section of the tube body is 120°, the rear end of the first section of the tube body extends into the channel and is located in the channel, and the second section of the tube body is always located outside the channel.

[0013] Preferably, a circular sheet is fixedly installed in the support tube, a first through hole for passing the traction rope is formed at the center of the circular sheet, and the circular sheet is located at the connection between the first section of the tube and the second section of the tube.

[0014] Preferably, the limiting protrusion is in the shape of a major arc, and a second through hole for passing the traction rope is formed at a position of the limiting protrusion opposite to the axis of the first section of the tube body.

[0015] Preferably, the front outer contour of the yarn bobbin base is a truncated cone shape that tapers from the back to the front.

[0016] Preferably, the hinged position of the two blades is the hinge, the position where the second compression spring is connected to the blade is located behind the hinge, and the blade is located in front of the hinge.

[0017] Preferably, the first yarn guide is a vacuum generator.

[0018] A winding device comprises: a yarn changer, a second yarn guide and a turntable, wherein a first yarn threading hole for passing a base yarn is formed at the center position of the turntable, the turntable is mounted on a support frame and can rotate with the base yarn as the axis, there are N yarn changers, the N yarn changers are arranged in a circumferential direction with the first yarn threading hole as the center, the N yarn changers are all fixed on the turntable, and the yarn cutters of the N yarn changers are located on the same surface of the turntable; the front part of the yarn shaft base of each yarn changer is wrapped with yarn, and the yarn wrapped outside the yarn shaft base is used as the outer winding yarn; the yarns wrapped outside the yarn shaft bases of the N yarn changers are different, the second yarn guide is located on one side of the turntable, the second yarn guide is close to the first yarn guide and does not contact any yarn changer.

[0019] A segmented yarn wrapping device comprises a yarn feeding device, a wrapping device and a winding device which are sequentially arranged from front to back.

[0020] In the above technical solution, the yarn feeding device includes: a first tensioner, a first winding roller and a second yarn threading hole arranged in sequence from front to back, and the winding device includes: a second tensioner, a yarn guide and a second winding roller arranged in sequence from front to back, the second winding roller is used to wind the segmented wrapped yarn, the yarn guide is used to evenly wind the wrapped segmented wrapped yarn onto the second winding roller, and the second winding roller is electrically connected to the motor.

[0021] The wrapping device of the present invention is simple to operate and can automatically complete the yarn replacement process, completing automated production, significantly improving production efficiency. It can spirally wrap multiple functional yarns around the surface of a base yarn in sections to produce wrapped yarns. This wrapping device achieves the integration of different functional yarns, meeting the demand for preparing functional yarns with comprehensive characteristics. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the yarn changer (cross-section view);

[0023] Figure 2 Schematic diagram of the structure of the yarn changer (yarn cutter open);

[0024] Figure 3 Schematic diagram of the structure of the yarn changer (yarn cutter closed);

[0025] Figure 4 Schematic diagram of the three-dimensional structure of the first section of the tube;

[0026] Figure 5 It is a structural schematic diagram of the wrapping device;

[0027] Figure 6 It is a structural schematic diagram of a segmented yarn wrapping device;

[0028] Figure 7 Schematic diagram of segmented winding yarn.

[0029] Among them, 1: yarn changer, 1-1: yarn cutter, 1-1-1: blade, 1-1-2: second compression spring, 1-1-3: hinge, 1-2: first yarn feeder, 1-3: support tube, 1-3-1: first section of the tube, 1-3-2: second section of the tube, 1-3-3: strip opening, 1-4: first compression spring, 1-5: traction rope, 1-6: yarn shaft base, 1-7: motor, 1-8: block protrusion, 1-9: limit protrusion, 2: second yarn feeder, 3: turntable, 3-1: first yarn threading hole;

[0030] 10: Yarn feeding device, 101: First tensioner, 102: First winding roller; 103: Second yarn threading hole; 30: Winding device, 301: Second tensioner, 302: Yarn guide, 303: Second winding roller.

[0031] A: base yarn, B: first functional yarn, C: second functional yarn, D: third functional yarn. DETAILED DESCRIPTION

[0032] The segmented yarn wrapping device of the present invention will be described in detail below with reference to the accompanying drawings.

[0033] Example 1

[0034] A yarn changer, such as Figure 1 As shown, it includes: a yarn cutter 1-1, a first yarn guide 1-2, a support tube 1-3, a first compression spring 1-4, a traction rope 1-5, a yarn shaft base 1-6 and a motor 1-7. The outside of the yarn shaft base 1-6 is used to wrap the yarn, and a channel is formed at the axial position of the yarn shaft base 1-6 (the length direction of the channel is parallel to the axis of the yarn shaft base 1-6). The rear end of the support tube 1-3 extends into the channel and is located in the channel. The front end of the support tube 1-3 is located outside the channel. The first yarn guide 1-2 is fixedly mounted on the front part of the support tube 1-3 and is used to adsorb the end of the yarn wrapped around the outside of the yarn shaft base 1-6. The yarn cutter 1-1 is installed at the front end of the support tube 1-3. The motor 1-7 is a ratchet motor, and the motor 1-7 is installed at the rear end of the yarn shaft base 1-6;

[0035] like Figures 2-3 As shown, the yarn shear 1-1 includes: two blades 1-1-1 and a second compression spring 1-1-2, the two blades 1-1-1 are hinged and the blades are arranged opposite to each other, the two ends of the second compression spring 1-1-2 are respectively connected to one blade 1-1-1, and the second compression spring 1-1-2 applies a thrust to the two blades 1-1-1 to open and separate the blades of the two blades 1-1-1, as shown in FIG. Figure 2 As shown;

[0036] One end of the traction rope 1-5 is connected to the output shaft of the motor 1-7, and the other end of the traction rope 1-5 is connected to the yarn shear 1-1 after passing through the channel and the support tube 1-3. The traction rope 1-5 is divided into two connecting ropes at the end away from the motor 1-7. Each connecting rope is connected to a blade 1-1-1. The motor 1-7 rotates and drives the traction rope 1-5 to shorten. Under the pull of the traction rope 1-5, the two blades 1-1-1 are closed and the blades are in contact, so that the yarn is cut. Figure 3 As shown;

[0037] like Figure 1 and Figure 4As shown, the support tube 1-3 is formed with a strip opening 1-3-3 along its length direction, and a block-shaped protrusion 1-8 is formed (fixed) inside the channel. The block-shaped protrusion 1-8 is located in the strip opening 1-3-3, and the block-shaped protrusion 1-8 serves as a track to enable the support tube 1-3 to slide along the length direction of the channel;

[0038] A limiting protrusion 1-9 is fixedly installed in the support tube 1-3 in front of the block-shaped protrusion 1-8, and the first compression spring 1-4 is limited in the channel between the block-shaped protrusion 1-8 and the limiting protrusion 1-9.

[0039] Preferably, the support tube 1-3 includes: a first section of the tube body 1-3-1 and a second section of the tube body 1-3-2, the first section of the tube body 1-3-1 and the second section of the tube body 1-3-2 are connected, the angle between the axes of the first section of the tube body 1-3-1 and the second section of the tube body 1-3-2 is 120°, the rear end of the first section of the tube body 1-3-1 extends into the channel and is located in the channel, and the second section of the tube body 1-3-2 is always located outside the channel.

[0040] As a preference, a circular sheet is fixedly mounted in the support tube 1-3, and a first through hole for passing the traction rope 1-5 is formed at the center of the circular sheet. Figure 1 As shown, the circular piece is located at the connection between the first section of the tube 1-3-1 and the second section of the tube 1-3-2.

[0041] Preferably, the limiting protrusion 1-9 is in the shape of a major arc, and the limiting protrusion 1-9 is located in the first section of the tube body 1-3-1. A second through hole for passing the traction rope 1-5 is formed at a position opposite to the axis of the limiting protrusion 1-9 and the first section of the tube body 1-3-1.

[0042] Preferably, the front outer contour of the yarn reel base 1-6 is a truncated cone that tapers from the back to the front.

[0043] Preferably, the hinged joint of the two blades 1-1-1 is 1-1-3, the connection position of the second compression spring 1-1-2 and the blade 1-1-1 is located behind the hinged joint 1-1-3, and the blade is located in front of the hinged joint 1-1-3.

[0044] Preferably, the first yarn feeder 1-2 is a vacuum generator.

[0045] The yarn changer 1 operates as follows: the yarn wrapped around the yarn spool base 1-6 passes between the blades of the two blades 1-1-1, the motor 1-7 rotates in the forward direction, causing the traction rope 1-5 to be wound around the output shaft of the motor 1-7, thereby shortening the traction rope 1-5. The rear portion of the support tube 1-3 is pulled into the channel, and the first compression spring 1-4 is compressed by the limiting protrusion 1-9 onto the block protrusion 1-8. At the same time, the traction rope 1-5 applies tension to the yarn cutter 1-1, causing the two blades 1-1-1 of the yarn cutter 1-1 to close and cut the yarn. The first yarn guide 1-2 absorbs the end of the yarn to fix the yarn. After cutting the yarn, the motor 1-7 rotates in the reverse direction, and the traction rope 1-5 is wound around the output shaft of the motor 1-7. The length of the traction rope 1-5 increases, and the compressed first compression spring 1-4 applies a thrust toward the outside of the channel to the limiting protrusion 1-9, thereby pushing the support tube 1-3 toward the front of the channel. The two blades 1-1-1 of the yarn shear 1-1 are separated under the action of the second compression spring 1-1-2.

[0046] Example 2

[0047] like Figure 5 As shown, a wrapping device includes: the yarn changer 1 in Example 1, the second yarn feeder 2 and the turntable 3, and the second yarn feeder 2 is a vacuum generator. A first yarn threading hole 3-1 for passing the base yarn is formed at the center position of the turntable 3. The turntable 3 is mounted on a support frame and can rotate with the base yarn as the axis. The speed of the turntable 3 is adjustable. In Example 1, there are three yarn changers 1. The three yarn changers 1 are arranged in a circumferential direction with the first yarn threading hole 3-1 as the center. The three yarn changers 1 are all fixed on the turntable 3. The yarn cutters 1-1 of the three yarn changers 1 are located on the same side of the turntable 3; the front part of the yarn shaft base 1-6 of each yarn changer 1 is wrapped with yarn, and the yarns wrapped around the yarn shaft bases 1-6 of the three yarn changers 1 are different. The yarn wrapped around the yarn shaft base 1-6 is used as the outer wrapped yarn; the second yarn guide 2 is located on one side of the (fixed) turntable 3, and the second yarn guide 2 is close to the first yarn guide 1-2 and does not contact any yarn changer 1.

[0048] The working method of the wrapping device comprises the following steps:

[0049] S1, passing the base yarn through the first yarn threading hole 3-1;

[0050] S2: Before wrapping begins, the ends of the outer wrapped yarns of the three yarn changers 1 of the wrapping device are fixed by their corresponding first yarn guides 1-2 (e.g., attracted by the first yarn guides). When it is necessary to wrap the yarn outside a particular yarn changer 1, that yarn changer 1 is used as the original yarn changer, so that the length of the support tube 1-3 of the original yarn changer extending from the channel is increased and the blades of the two blades 1-1-1 are separated.

[0051] At this time, compared with the other two yarn changers, the distance between the first yarn feeder 1-2 and the second yarn feeder 2 of the original yarn changer is shortened, and the turntable 3 is rotated until the yarn cutter 1-1 of the original yarn changer is located between the second yarn feeder 2 and the first yarn feeder 1-2 of the original yarn changer, so that the first yarn feeder 1-2 of the original yarn changer stops fixing the end of the yarn on the original yarn changer and the second yarn feeder 2 starts to absorb the yarn. At this time, the yarn end originally absorbed on the first yarn feeder 1-2 of the original yarn changer passes between the two blades 1-1-1 and is absorbed on the second yarn feeder 2. On the basis of the second yarn feeder 2 fixing the yarn end of the original yarn changer, the blades of the two blades 1-1-1 of the original yarn changer are kept separated, and the turntable 3 is rotated. The original yarn changer rotates with the base yarn as the axis, and the yarn on the original yarn changer is wrapped around the base yarn in a spiral form;

[0052] In step S3, when the yarn winding on the original yarn changer is complete and another yarn changer 1 is needed as the new original yarn changer, the motor 1-7 of the original yarn changer is rotated, and the traction rope 1-5 applies tension to the yarn cutter 1-1 of the original yarn changer, causing the two blades 1-1-1 of the yarn cutter 1-1 to close and cut the yarn. The first yarn guide 1-2 of the original yarn changer attracts the end of the yarn, thereby securing the yarn. The new yarn changer 1 is used as the original yarn changer in step S2 and the same steps as in step S2 are executed.

[0053] During the operation of the wrapping device, the support tube 1-3 of the yarn changer serving as the original yarn changer extends from the channel; the rear portion of the support tube 1-3 of the yarn changer not serving as the original yarn changer is retracted into the channel as much as possible.

[0054] The wrapping device can be used to wrap different yarns around the base yarn, thereby obtaining segmented wrapped yarns.

[0055] Example 3

[0056] like Figure 6 As shown, a segmented yarn wrapping device includes: a yarn feeding device 10, the wrapping device of Example 2, and the winding device 30, arranged in sequence from front to back. The yarn feeding device 10 includes: a first tensioner 101, a first winding roller 102, and a second yarn threading hole 103, arranged in sequence from front to back. The first winding roller 102 and the first tensioner 101 are used to apply a certain tension to the fed base yarn so that it is evenly wrapped during the wrapping process, thereby avoiding repeated wrapping caused by uneven tension. The second yarn threading hole 103 is used to control the movement path of the fed base yarn so that it is within the wrapping range of the wrapping device.

[0057] The winding device 30 includes: a second tensioner 301, a yarn guide 302 and a second winding roller 303 arranged in sequence from front to back. The second winding roller 303 is used to wind the segmented winding yarn. The yarn guide 302 is used to evenly wind the wrapped segmented winding yarn onto the second winding roller 303. The second winding roller 303 is connected to the motor, and the motor provides power to the second winding roller 303 to control the winding speed.

[0058] The present invention's segmented yarn wrapping device meets the requirements for automated wrapping of multiple functional yarns. The base yarn is fed through a yarn feeder 10 and passed through a first threading hole 3-1 in the wrapping device. The outer wrapping yarn is mounted on a yarn changer 1 of the wrapping device. The yarn changer 1 facilitates both the introduction of the outer wrapping yarn before wrapping and the breaking of the outer wrapping yarn after wrapping. This allows for segmented wrapping of multiple functional yarns around the base yarn, improving the production efficiency of multi-segment wrapped yarns.

[0059] The yarns wrapped around the yarn shaft bases 1-6 of the three yarn changers 1 are the first functional yarn, the second functional yarn, and the third functional yarn in sequence. The final segmented wrapped yarn is centered on a base yarn, with the first functional yarn, the second functional yarn, and the third functional yarn as the outer wrapped yarns, such as Figure 7 As shown, it includes: base yarn A, first functional yarn B, second functional yarn C, and third functional yarn D. The first functional yarn B, the second functional yarn C, and the third functional yarn D are spirally wrapped around the base yarn.

[0060] There are three types of wrapping: butt-joint wrapping, overlapping wrapping, and gap wrapping. Butt-joint wrapping (also called connecting wrapping) is a wrapping method in which adjacent yarn spirals are tightly connected edge to edge (edge-to-edge, seamless wrapping); overlapping wrapping is a wrapping method in which a portion of the yarn overlaps a portion of the previous spiral, also known as positive overlap wrapping; and gap wrapping is a wrapping method in which a certain gap is left between the next spiral and the previous spiral, also known as negative overlap wrapping. When the wrapping yarn is wrapped around the base yarn, the wrapping form of the wrapping yarn is a composite form of any one or more of the three types: butt-joint wrapping, overlapping wrapping, and gap wrapping. Different wrapping forms can be achieved by controlling the rotation speed of the turntable 3 in the wrapping device and the winding speed of the winding device 30.

[0061] The preparation method of the segmented wrapped yarn of the present invention comprises the following steps:

[0062] The base yarn passes through the first tensioner 101 and the first winding roller 102, then through the second yarn threading hole 103 of the yarn feeding device and the first yarn threading hole 3-1 of the winding device. Finally, it passes through the second tensioner 301 and yarn guide 302 of the winding device and is wound onto the second winding roller 303. The winding device is turned on, and the second winding roller 303 winds at a speed of 10 to 100 r / min.

[0063] The first functional yarn B, the second functional yarn C, and the third functional yarn D are each wound onto the yarn shaft base 1-6 of a yarn changer 1, and the heads of the first functional yarn B, the second functional yarn C, and the third functional yarn D are fixed (adsorbed) by the first yarn guide 1-2 of their respective yarn changers 1.

[0064] The outer wrapped yarn of the first yarn changer is the first functional yarn, the outer wrapped yarn of the second yarn changer is the second functional yarn, and the outer wrapped yarn of the third yarn changer is the third functional yarn. Under the action of yarn changer 1, the first yarn changer operates as the original yarn changer in Example 2, causing the turntable 3 of the winding device to rotate, and the first functional yarn is spirally wound onto the base yarn. After the first functional yarn is wrapped, the yarn is broken by the action of the first yarn changer, and most of the support tubes 1-3 of the first yarn changer are retracted into the channel. The second yarn changer operates as the original yarn changer in Example 2 and begins spiral wrapping. After the second functional yarn is wrapped, the second yarn changer breaks the yarn, and the third yarn changer operates as the original yarn changer in Example 2 and begins spiral wrapping. After the wrapping is completed, the segmented wrapped yarn is obtained.

[0065] The rotation speed of the turntable 3 in the wrapping device is 10-100 r / min, and the winding speed of the winding device is 10-100 r / min. The yarn wrapping density of the segmented wrapped yarn is controlled by the rotation speed of the turntable 3 of the wrapping device and the winding speed of the winding device.

[0066] Example 4

[0067] The segmented wrapped yarn was obtained using the segmented wrapped yarn device in Example 3. The second functional yarn was obtained by immersing a 20 cm long cotton yarn with a fineness of 100 Tex in a first mixed solution for 10 minutes, removing the cotton yarn and drying it in an oven at 40° C. for 1 hour to obtain the second functional yarn, wherein the first mixed solution is a mixture of polyvinyl alcohol (PVA), polystyrene sulfonic acid (PSS) and ultrapure water, wherein the mass fraction of the polyvinyl alcohol in the first mixed solution is 5 wt %, and the mass fraction of the polystyrene sulfonic acid in the first mixed solution is 10 wt %.

[0068] The base yarn is a cotton yarn with a fineness of 100 Tex.

[0069] The first functional yarn is 90Tex silver-plated yarn (nylon fiber impregnated with anion, 200d, purchased from Dazhiyuan Anti-Radiation Fabric Store);

[0070] The third functional yarn is polypyrrole yarn. The method for obtaining the polypyrrole yarn includes: soaking a 20 cm long cotton yarn with a fineness of 100 tex in a 0.5 mol / L aqueous solution of pyrrole for 30 minutes, then soaking the cotton yarn in a 0.5 mol / L aqueous solution of ferric chloride for polymerization for 3 hours, washing the cotton yarn with clean water three times to remove the unpolymerized solution on the surface, and then drying the cotton yarn in a 40°C oven for 2 hours to obtain the polypyrrole yarn.

[0071] The first functional yarn, the second functional yarn and the third functional yarn are each wound on a yarn shaft base 1-6 of a yarn changer 1. The rotation speed of the winding device turntable 3 is set to 20 r / min, and the winding speed of the second winding roller 303 is 10 r / min.

[0072] The first functional yarn, the second functional yarn and the third functional yarn are wrapped in sequence. After the first functional yarn is wrapped around the base yarn, the first functional yarn forms a first functional segment on the base yarn; after the second functional yarn is wrapped around the base yarn, the second functional yarn forms a second functional segment on the base yarn; after the third functional yarn is wrapped around the base yarn, the third functional yarn forms a third functional segment on the base yarn; the length of the first functional segment along the base yarn is 1 cm, the length of the second functional segment along the base yarn is 1 cm, and the length of the third functional segment along the base yarn is 1 cm.

[0073] The first functional segment and the second functional segment are wrapped in an overlapping manner (the overlap length is 0.2 cm), and the second functional segment and the third functional segment are wrapped in an overlapping manner (the overlap length is 0.2 cm).

[0074] The segmented yarn wrapping device forms a first, second, and third functional segment, serving as a wet gas power generation unit. Testing of the wet gas power generation unit at 80% relative humidity and 25°C, with both ends of the unit connected to a multimeter, revealed that the unit was capable of outputting an open-circuit voltage of 0.5V and a short-circuit current of 10μA.

[0075] The above is an exemplary description of the present invention. It should be noted that, without departing from the core of the present invention, any simple deformation, modification or other equivalent replacement that can be made by other skilled in the art without expending creative labor falls within the scope of protection of the present invention.

Claims

1. A yarn changer, characterized in that: include: A yarn cutter (1-1), a first yarn guide (1-2), a support tube (1-3), a first compression spring (1-4), a traction rope (1-5), a yarn shaft base (1-6) and a motor (1-7); the outside of the yarn shaft base (1-6) is used for winding yarn; a channel is formed at the axis position of the yarn shaft base (1-6); the rear end of the support tube (1-3) extends into the channel and is located in the channel; the front end of the support tube (1-3) is located outside the channel; the first yarn guide (1-2) is fixedly mounted on the front part of the support tube (1-3) and is used for adsorbing the end of the yarn wrapped around the outside of the yarn shaft base (1-6); the yarn cutter (1-1) is mounted on the front end of the support tube (1-3); and the motor (1-7) is mounted on the rear end of the yarn shaft base (1-6); The yarn shear (1-1) comprises: two blades (1-1-1) and a second compression spring (1-1-2); the two blades (1-1-1) are hinged and the blades are arranged opposite to each other; both ends of the second compression spring (1-1-2) are respectively connected to one blade (1-1-1); the second compression spring is used to separate the blades of the two blades (1-1-1); One end of the traction rope (1-5) is connected to the output shaft of the motor (1-7), and the other end of the traction rope (1-5) passes through the channel and the support tube (1-3) and is connected to the yarn cutter (1-1). The end of the traction rope (1-5) away from the motor (1-7) is divided into two connecting ropes, each connecting rope is connected to a blade (1-1-1), and the motor (1-7) rotates and drives the traction rope (1-5) to shorten, so that the two blades (1-1-1) are closed and the blades are in contact. The support tube (1-3) is formed with a strip opening (1-3-3) along its length direction, and a block-shaped protrusion (1-8) is formed inside the channel. The block-shaped protrusion (1-8) is located inside the strip opening (1-3-3), and the block-shaped protrusion (1-8) serves as a track to enable the support tube (1-3) to slide along the length direction of the channel; A limiting protrusion (1-9) is fixedly installed in the support tube (1-3) in front of the block-shaped protrusion (1-8), and the first compression spring (1-4) is limited in the channel between the block-shaped protrusion (1-8) and the limiting protrusion (1-9).

2. The yarn changer according to claim 1, characterized in that The support tube (1-3) comprises: a first section of the tube body (1-3-1) and a second section of the tube body (1-3-2); the first section of the tube body (1-3-1) and the second section of the tube body (1-3-2) are connected; the axis angle between the first section of the tube body (1-3-1) and the second section of the tube body (1-3-2) is 120°; the rear end of the first section of the tube body (1-3-1) extends into the channel and is located in the channel; the second section of the tube body (1-3-2) is always located outside the channel.

3. The yarn changer according to claim 2, characterized in that A circular sheet is fixedly installed in the support tube (1-3), a first through hole for passing the traction rope (1-5) is formed at the center of the circular sheet, and the circular sheet is located at the connection between the first section of the tube (1-3-1) and the second section of the tube (1-3-2).

4. The yarn changer according to claim 2, characterized in that The limiting protrusion (1-9) is in the shape of a major arc, and a second through hole for passing the traction rope (1-5) is formed at a position where the limiting protrusion (1-9) is opposite to the axis of the first section of the tube body (1-3-1).

5. The yarn changer according to claim 1, characterized in that The front outer contour of the yarn shaft base (1-6) is a truncated cone shape which gradually decreases from the back to the front.

6. The yarn changer according to claim 1, characterized in that The hinged position of the two blades (1-1-1) is the hinge (1-1-3), the position where the second compression spring (1-1-2) is connected to the blade (1-1-1) is located behind the hinge (1-1-3), and the blade is located in front of the hinge (1-1-3).

7. The yarn changer according to claim 1, characterized in that The first yarn feeder (1-2) is a vacuum generator.

8. A wrapping device comprising: The yarn changer (1), the second yarn guide (2) and the turntable (3) as described in claim 1, the center position of the turntable (3) is formed with a first yarn threading hole (3-1) for passing the base yarn, the turntable (3) is installed on the support frame and can rotate with the base yarn as the axis, the yarn changers (1) are N, and the N yarn changers (1) are arranged in the circumferential direction with the first yarn threading hole (3-1) as the center of the circle, and the N yarn changers (1) are fixed on the turntable (3 ), the yarn cutters (1-1) of the N yarn changers (1) are located on the same side of the turntable (3); the front of the yarn shaft base (1-6) of each yarn changer (1) is wrapped with yarn, and the yarns wrapped around the yarn shaft bases (1-6) of the N yarn changers (1) are different; the second yarn feeder (2) is located on one side of the turntable (3), the second yarn feeder (2) is close to the first yarn feeder (1-2) and does not contact any yarn changer (1).

9. A segmented yarn wrapping device, characterized in that: include: A yarn feeding device (10), a wrapping device according to claim 8 and a winding device (30) are arranged in sequence from front to back.

10. The segmented yarn wrapping device according to claim 9, characterized in that: The yarn feeding device (10) comprises: a first tensioner (101), a first winding roller (102) and a second yarn threading hole (103) arranged in sequence from front to back; the winding device (30) comprises: a second tensioner (301), a yarn guide (302) and a second winding roller (303) arranged in sequence from front to back.

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