A high-speed braiding machine with thread withdrawal and a braiding method

Abstract

The application provides a high-speed braiding machine and a braiding method. The high-speed braiding machine comprises a conveying mechanism, a braiding mechanism and a rewinding mechanism. The braiding mechanism comprises a base plate and a center tube. The braiding mechanism has a yarn supply position and a braiding position on the conveying path of the yarn. The rewinding mechanism is arranged on one side of the base plate. The rewinding mechanism comprises a limiting assembly and a stripping assembly. The limiting assembly comprises a movable ring and a fixed ring. The fixed ring is arranged on the side of the center tube away from the base plate. The movable ring is movably arranged between the center tube and the fixed ring. The movable ring can be moved to the yarn supply position and the braiding position and is in butt joint with the fixed ring to cut and fix the unbraided yarns between the movable ring and the fixed ring. The stripping assembly is arranged on the side of the limiting assembly away from the center tube and is used for stripping the braided layer on the surface of the core wire in the rewinding mode. The application can solve the problems of low efficiency and high labor intensity caused by manual removal of unqualified braided layer and then re-braiding.

Description

Technical Field

[0001] This application relates to the field of cable manufacturing technology, and in particular to a high-speed braiding machine and braiding method with retractable wire. Background Technology

[0002] In the superconducting cable manufacturing industry, high-speed braiding machines are widely used to braid metal wires or fiber filaments onto the surface of the core wire to form a braided layer, thereby enhancing the shielding performance and mechanical strength of the cable.

[0003] However, high-speed braiding machines are prone to producing substandard braided layers due to issues such as broken yarns and missing strands. Currently, defective braided layers typically require manual removal and re-weaving, which is inefficient and labor-intensive. Summary of the Invention

[0004] This application provides a high-speed braiding machine and braiding method with removable yarn, which can solve the problems of low efficiency and high labor intensity caused by manually removing unqualified braided layers and then re-braiding.

[0005] In the first aspect, this application provides a high-speed braiding machine with retractable yarn, comprising:

[0006] The conveying mechanism has a core wire feeding mode and a core wire unloading mode; A braiding mechanism, including a chassis and a central tube, is used to braid multiple threads onto the surface of a core wire in the wire feeding mode, and has a thread feeding position and a braiding position on the thread feeding path; A retraction mechanism, located on one side of the chassis, includes: The limiting assembly includes a moving ring and a fixed ring. The fixed ring is disposed on the side of the central tube away from the chassis. The moving ring is movably disposed between the central tube and the fixed ring and can move to the space between the yarn feeding position and the braiding position and dock with the fixed ring to cut and fix multiple unbraided yarns between the moving ring and the fixed ring. A stripping assembly, disposed on the side of the limiting assembly away from the central tube, is used to strip the braided layer on the surface of the core wire in the unwinding mode.

[0007] The solution provided in this application, through the cooperation of the fixed ring and the moving ring of the limiting component, can automatically cut and fix the yarn, and peel off the braided layer already woven onto the surface of the core yarn through the peeling component. This effectively automates the entire process from yarn removal and peeling to re-weaving, significantly reducing manual intervention and improving production efficiency. Therefore, this application can solve the problems of low efficiency and high labor intensity caused by manually removing defective braided layers and then re-weaving.

[0008] In conjunction with the first aspect, in some possible implementations, the central tube is rotatably mounted on the chassis; The dynamic ring includes: The first half-ring and the second half-ring are connected to the central tube in such a way that they can move along the axial direction of the central tube.

[0009] The solution provided in this application provides a solution by setting the moving ring as a symmetrical first half-ring and second half-ring, and making the first half-ring and second half-ring rotate with the rotation of the central tube, so that the limiting component can easily realize the limiting and release of the wire, and return the wire to the position between the moving ring and the fixed ring, effectively ensuring the automatic repeatability of the limiting component.

[0010] In combination with the first aspect and the above-described implementation, in some possible implementations, the fixed ring and the moving ring are respectively provided with a convex ring and an annular groove on the side opposite to each other; The convex ring can be inserted into the annular groove to fix the multiple threads between the fixed ring and the moving ring.

[0011] The solution provided in this application embodiment uses a convex ring and an annular groove to engage the fixed ring and the moving ring, which can effectively increase the clamping force on the wire of the limiting component, ensure the reliability of the wire end fixing during the wire unwinding process, and prevent slippage.

[0012] In combination with the first aspect and the above-described implementation, in some possible implementations, one of the shoulder of the convex ring and the opening end face of the groove is provided with a first cutter, and the other is provided with an abutment surface; When the convex ring and the groove are inserted into each other, the first cutter presses against the abutting surface to cut multiple threads between the fixed ring and the moving ring.

[0013] The solution provided in this application embodiment can achieve precise, fast, and smooth cutting of the thread through the cooperation of the first cutter and the contact surface.

[0014] In conjunction with the first aspect and the above implementation methods, in some possible implementations, the limiting component further includes: Two lifting cylinders are disposed in the central tube, and the output ends of the two lifting cylinders are respectively connected to the first half ring and the second half ring, and are respectively used to drive the first half ring and the second half ring to move along the axial direction of the central tube; A rotation drive is disposed on one side of the chassis, and the output end of the rotation drive is connected to the central tube to drive the central tube to rotate around its axis.

[0015] The solution provided in this application uses two lifting cylinders to drive the first and second half-rings, and a rotating drive component to drive the central tube, which enables the limiting component to conveniently limit and release the wire, further ensuring the repeatability of the overall structure.

[0016] In combination with the first aspect and the above implementation methods, in some possible implementations, the stripping component includes: The second cutter is located on the side of the fixed ring away from the moving ring. The second cutter can move radially along the core wire to approach or move away from the core wire.

[0017] The solution provided in this application embodiment can easily achieve the peeling of the braided layer from the surface of the core wire by setting a second cutter on the side of the fixed ring away from the moving ring, which can move radially along the core wire.

[0018] In combination with the first aspect and the above implementation methods, in some possible implementations, the stripping component includes: An mounting sleeve is disposed on the side of the fixed ring away from the moving ring; the mounting sleeve is fitted onto the core wire and has clearance holes on its periphery that are adapted to the second cutter; The second cutter is at least partially inserted through the clearance hole.

[0019] The solution provided in this application embodiment, by using an installation sleeve fitted onto the core wire, can effectively guide and position the core wire during the process of the second cutter peeling off the defective braided layer on the core wire.

[0020] In combination with the first aspect and the above-described implementations, in some possible implementations, the weaving mechanism includes: Multiple pay-off frames are arranged around the central tube, and the pay-off frames are used to release the wire at the wire feeding position; The braiding track is used to guide the wire feeder to move along a preset braiding trajectory so as to use the yarn to braid a braided layer on the surface of the core wire.

[0021] The solution provided in this application embodiment uses multiple pay-off frames symmetrically arranged around the central tube to ensure uniform tension of each strand of wire. With the help of the braiding track guiding the pay-off frames to move precisely along a preset trajectory, the braiding angle and other performance characteristics can be kept stable and controllable, thereby forming a dense and uniform braided layer on the surface of the core wire.

[0022] Secondly, this application also provides a weaving method applied to a high-speed weaving machine with retractable yarn as described in any of the first aspects above, the weaving method comprising: S101. In the event of a defective braided layer appearing on the surface of the core wire, the moving ring of the control limit assembly moves between the wire feeding position and the braiding position and docks with the fixed ring to cut off and fix multiple unbraided wires. S102. Control the conveyor mechanism to operate in the unwinding mode. After using the peeling component to peel off the unqualified braided layer, cut off the peeled unqualified braided layer to form the braided layer end. S103. In the unwinding mode, control the braided layer end to retract to between the yarn supply position and the braiding position; S104. Fix the multiple unbraided threads cut in S101 to the connection point, and move the moving ring toward the central tube to separate the moving ring from the fixed ring; wherein, the connection point is a predetermined part of the braided layer on the surface of the core wire on one side of the braided layer end that has not been peeled off. S105. Control the conveying mechanism to operate in the thread-feeding mode, convey the connecting part to the weaving position, and restart weaving at the connecting part through the weaving mechanism.

[0023] The method provided in this application effectively automates operations from unwinding and stripping to reweaving, greatly reducing manual intervention and improving production efficiency.

[0024] In conjunction with the second aspect, in some possible implementations, the central tube is rotatably mounted on the chassis; the moving ring includes a first half-ring and a second half-ring, the first half-ring and the second half-ring being connected to the central tube in a manner that allows them to move along the axial direction of the central tube; The step of moving the moving ring toward the central tube to separate the moving ring from the fixed ring includes: Move the first half-ring toward the central tube to the first position, and at the same time, rotate the first half-ring 180°; Move the second half-ring toward the central tube to the second position, and at the same time, rotate the second half-ring 180°; The height of the second position is the same as the height of the first position.

[0025] The method provided in this application embodiment can conveniently limit and release the thread through the limiting component, and return the thread to the position between the moving ring and the fixed ring, thereby ensuring the automatic repeatability of the limiting component.

[0026] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application, and those skilled in the art can obtain other embodiments based on these drawings. In the drawings: Figure 1 This is a schematic diagram of the structure of a high-speed braiding machine with retractable yarn provided in an embodiment of this application; Figure 2 yes Figure 1 Another structural diagram of a high-speed braiding machine with retractable yarn; Figure 3 yes Figure 1 A schematic diagram of the unwinding mechanism in a high-speed braiding machine with unwinding capability; Figure 4 yes Figure 3 A longitudinal sectional view of the insertion and mating of the moving ring and fixed ring of the limit component in the unwinding mechanism; Figure 5 yes Figure 3 A schematic diagram of the stripping component in the unwinding mechanism; Figure 6 yes Figure 3 A schematic diagram of the insertion and engagement of the moving ring and fixed ring of the limit component in the unwinding mechanism; Figure 7 This is a schematic diagram showing how multiple unbraided threads cut by the limiting component are fixed to the connection point P; Figure 8 This is a schematic diagram of the first half-ring of the limit component being reset; Figure 9 A flowchart of the weaving method of the high-speed braiding machine based on retractable yarn provided in this application.

[0028] The annotations in the attached figures are explained as follows: 100—High-speed knitting machine; 10—Rack; 1—Conveying mechanism; 11—Core wire; 2—Weaving mechanism; 21—Weaving track; 22—Chassis; 23—Thread feeder; 231—Thread; 24—Central tube; 3—Unwinding mechanism; 31—Limiting component; 311—fixed ring; 3111—convex ring; 312—Moving ring; 3121—First half-ring; 3122—Second half-ring; 313—First cut; 314—Lifting cylinder; 315—Rotational drive component; 32—Stripping component; 321—Installation sleeve; 322—Second cut; 323—Moving cylinder; P—Connection point. Detailed Implementation

[0029] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0030] In this document, the term "embodiment" means that a particular feature—structure or characteristic—described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0031] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0032] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0033] In the superconducting cable manufacturing industry, high-speed braiding machines are widely used to braid metal wires or fiber filaments onto the surface of the core wire to form a braided layer, thereby enhancing the shielding performance and mechanical strength of the cable.

[0034] However, high-speed braiding machines are prone to producing substandard braided layers due to issues such as broken yarns and missing strands. Currently, defective braided layers typically require manual removal and re-weaving, which is inefficient and labor-intensive.

[0035] To address the aforementioned technical problems, embodiments of this application provide a high-speed braiding machine with removable yarn and a braiding method. The following is a detailed description of the high-speed braiding machine with removable yarn provided in this application, with reference to the accompanying drawings.

[0036] First, please refer to Figure 1 and Figure 2 The first aspect of this application discloses a high-speed braiding machine 100 with retraction capability, comprising a conveying mechanism 1, a braiding mechanism 2, and a retraction mechanism 3. The conveying mechanism 1 has an infeed mode and a retraction mode for conveying core wires 11; the braiding mechanism 2 includes a chassis 22 and a central tube 24, and is used to braid multiple threads 231 onto the surface of the core wires 11 in the infeed mode, and has a thread feeding position and a braiding position on the conveying path of the threads 231; the retraction mechanism 3 is disposed on one side of the chassis 22, and includes a limiting component 31 and a stripping component 32. The limiting component 31 includes a moving ring 312 and a fixed ring 311. The fixed ring 311 is located on the side of the central tube 24 away from the chassis 22. The moving ring 312 is movably located between the central tube 24 and the fixed ring 311. The moving ring 312 can move between the yarn feeding position and the braiding position and dock with the fixed ring 311 to cut and fix the multiple unbraided yarns 231 between the moving ring 312 and the fixed ring 311. The stripping component 32 is located on the side of the limiting component 31 away from the central tube 24 and is used to strip the braided layer on the surface of the core yarn 11 in the yarn unwinding mode.

[0037] The conveying mechanism 1 includes a pay-off roller and a winding roller, and can perform both a feed mode and a retraction mode for conveying the core wire 11. In the feed mode, the pay-off roller releases the core wire 11, and the winding roller simultaneously winds it up; in the retraction mode, the winding roller rotates in the opposite direction to release the core wire 11, while the pay-off roller retracts the core wire 11. During normal weaving production, the conveying mechanism 1 operates in the feed mode, driving the core wire 11 to move along a preset conveying direction, allowing the core wire 11 to pass through the weaving mechanism 2 at a uniform speed for weaving operations; when weaving quality problems, wire breakage, or the need for re-weaving occur, the conveying mechanism 1 switches to the retraction mode.

[0038] The braiding mechanism 2 includes a base 22 and a central tube 24, with the central tube 24 positioned at the center of the base 22. The central tube 24 is hollow inside and used to guide the feeding of the core wire 11. Furthermore, the braiding mechanism 2 also includes a braiding track 21 and multiple feed-out frames 23, arranged around the central tube 24. The feed-out frames 23 release the yarn 231 at the yarn feeding position; the braiding track 21 guides the feed-out frames 23 to move along a preset braiding trajectory, thereby using the yarn 231 to braid a layer on the surface of the core wire 11. In this way, by symmetrically arranging multiple feed-out frames 23 around the central tube 24, the tension of each yarn 231 is made uniform. Combined with the precise movement of the feed-out frames 23 along the preset trajectory guided by the braiding track 21, stable and controllable braiding angles and other properties can be ensured, thereby forming a dense and uniform braided layer on the surface of the core wire 11.

[0039] like Figure 1 As shown, in the feeding mode, the core wire 11 passes through the braiding position, and multiple threads 231 are released from the feeding position and intertwine and wrap around the moving core wire 11 at a specific braiding angle (e.g., a figure-eight braiding trajectory) at the braiding position, thereby forming a dense braided layer. The feeding position and the braiding position are connected by the thread 231 path, and the threads 231 are fed from the feeding position to the braiding position under tension, thus ensuring the tightness and uniformity of the braid.

[0040] like Figure 3 As shown, the unwinding mechanism 3 includes a limiting component 31 and a stripping component 32. When a defective braided layer appears on the surface of the core wire 11, requiring re-braiding, the limiting component 31 cuts and secures multiple unbraided threads 231 between the feed position and the braiding position of the braiding mechanism 2. The thread 231 limiting component 31 includes a fixed ring 311 and a moving ring 312 coaxially arranged with the central tube 24. The moving ring 312 is vertically movably positioned below the fixed ring 311. The multiple threads 231 released from the feed position pass through the gap between the fixed ring 311 and the moving ring 312 and are conveyed to the braiding position. Specifically, the fixed ring 311, as a stationary component, is fixed to the frame 10 above the central tube 24 via a connector. The yarn 231 released by the pay-off frame 23 is conveyed to the braiding position after being limited and guided by the bottom of the fixed ring 311, thus ensuring that the yarn 231 is subjected to uniform force during the conveying process. The moving ring 312 is located between the central tube 24 and the fixed ring 311 and can move up and down along the axial direction of the central tube 24. In the normal braiding yarn feeding mode, the moving ring 312 is in the lowest position, so that a certain axial gap is maintained between the fixed ring 311 and the moving ring 312. This gap forms a channel for the yarn 231, and multiple yarns 231 can pass smoothly through this gap. When it is necessary to unwind the yarn, the moving ring 312 moves upward, gradually reducing the gap until it comes into contact with the fixed ring 311, thereby clamping the multiple yarns 231 in the gap between the moving ring 312 and the fixed ring 311.

[0041] The stripping assembly 32 is used to strip the braided layer of yarn 231 that has been braided onto the surface of the core wire 11 at the braiding position of the braiding mechanism 2. The limiting assembly 31 can effectively prevent the yarn 231 from becoming tangled, tangled, or pulled back during the retraction of the core wire 11; the stripping assembly 32 can break the bonding force between the braided layer and the core wire 11 through physical contact, cutting, or heating, causing the braided layer to peel off or break from the surface of the core wire 11, thereby achieving the purpose of automatically removing the braided layer. It is understood that the removed braided layer can be manually or automatically wound up using a take-up roller to ensure the stability of the unwinding operation.

[0042] The solution provided in this application, through the cooperation of the fixed ring 311 and the moving ring 312 of the limiting component 31, can automatically cut and fix the yarn 231, and peel off the braided layer already woven onto the surface of the core wire 11 through the peeling component 32. This effectively automates the operation from yarn removal and peeling to re-weaving, greatly reducing manual intervention and improving production efficiency. Therefore, this application can solve the problems of low efficiency and high labor intensity caused by manually removing defective braided layers and then re-weaving.

[0043] See Figure 1 and Figure 3 In some embodiments, the central tube 24 is rotatably mounted on the chassis 22; the moving ring 312 includes a first half-ring 3121 and a second half-ring 3122, which are connected to the central tube 24 in a manner that allows them to move along the axial direction of the central tube 24.

[0044] The central tube 24 is rotatably connected to the chassis 22. For example... Figure 3 As shown, the moving ring 312 includes a first half-ring 3121 and a second half-ring 3122 arranged symmetrically. The first half-ring 3121 and the second half-ring 3122 are connected to the central tube 24 and can rotate with the rotation of the central tube 24.

[0045] It should be noted that after the moving ring 312 moves upward and aligns with the fixed ring 311, cutting and fixing the multiple unbraided threads 231 between the moving ring 312 and the fixed ring 311, the multiple threads 231 can be fixed to the connection point P by methods such as winding or bonding (see...). Figure 7 This refers to the pre-defined portion of the braided layer on the surface of the core wire 11 at one end of the braided layer that has not been peeled off. Subsequently, the moving ring 312 can be controlled to move downward, causing the moving ring 312 to separate from the fixed ring 311.

[0046] At this time, considering that both the moving ring 312 and the fixed ring 311 are located on the upper side of the thread 231, the moving ring 312 cannot move to the lower side of the thread 231. When it is necessary to re-weave, the moving ring 312 can only be manually disassembled and reassembled so that the thread 231 is located between the moving ring 312 and the fixed ring 311. The automatic repeatable operation of the limiting component 31 cannot be realized. In this application, the moving ring 312 is set as a symmetrical first half ring 3121 and second half ring 3122, and the first half ring 3121 and the second half ring 3122 rotate with the rotation of the central tube 24. Thus, after multiple threads 231 are fixed to the connection point P, the first half-ring 3121 can be moved downwards first, while gradually controlling the first half-ring 3121 to rotate 180°, releasing part of the threads 231 below the first half-ring 3121, and causing the first half-ring 3121 to be screwed under another part of the threads 231; then, the second half-ring 3122 is controlled to move downwards and rotate 180° in the same way, releasing part of the threads 231 below it, causing it to be screwed under another part of the threads 231, thereby returning the threads 231 to their original position between the moving ring 312 and the fixed ring 311.

[0047] The solution provided in this application provides that by setting the moving ring 312 as a symmetrical first half-ring 3121 and second half-ring 3122, and making the first half-ring 3121 and second half-ring 3122 rotate with the rotation of the central tube 24, the limiting component 31 can easily limit and release the wire 231, and return the wire 231 to the position between the moving ring 312 and the fixed ring 311, effectively ensuring the automatic repeatability of the limiting component 31.

[0048] See Figure 4 In some embodiments, the fixed ring 311 and the moving ring 312 are respectively provided with a convex ring 3111 and an annular groove on the opposite side; the convex ring 3111 can be inserted into the annular groove to fix the multiple wires 231 between the fixed ring 311 and the moving ring 312.

[0049] Among them, such as Figure 4 As shown, the fixed ring 311 can be constructed as a convex structure with a protruding ring 3111 at the bottom, and the moving ring 312 can be constructed as a concave structure with an annular groove at the top. When the fixed ring 311 and the moving ring 312 cooperate to fix multiple threads 231, the protruding ring 3111 at the bottom of the fixed ring 311 is inserted into the annular groove at the top of the moving ring 312. When the moving ring 312 rises, the protruding ring 3111 gradually inserts into the annular groove, and at the same time, the threads 231 are also forced into the annular groove. At this time, the side of the protruding ring 3111 fits tightly with the side of the annular groove, forming a large-area wrapping clamp for the threads 231, thereby effectively increasing the friction between the threads 231 and the limiting component 31 and preventing the threads 231 from slipping off during the unwinding process.

[0050] The solution provided in this application embodiment is that the fixed ring 311 and the moving ring 312 are engaged with the annular groove through the convex ring 3111, which can effectively increase the clamping force on the wire 231 of the limiting component 31, ensure the reliability of the wire 231 end fixing during the unwinding process, and prevent slippage.

[0051] See Figure 4 In some embodiments, one of the shoulder of the convex ring 3111 and the opening end face of the groove is provided with a first cutter 313, and the other is provided with an abutment surface (not shown in the figure). When the convex ring 3111 is inserted into the groove, the first cutter 313 presses against the contact surface to cut the multiple threads 231 between the fixed ring 311 and the moving ring 312.

[0052] like Figure 4 As shown, the first cutter 313 has a ring structure; when the moving ring 312 rises and clamps the wire 231, the first cutter 313 contacts the wire 231, separating the multiple wires 231 between the ring 311 and the moving ring 312. The first cutter 313 can be a hot cutter, which is a cutter that uses heating to assist cutting and can instantly melt the wire 231 using high temperature.

[0053] The solution provided in this application embodiment can achieve precise, fast and smooth cutting of the thread 231 through the cooperation of the first cutter 313 and the contact surface.

[0054] See Figure 3 In some embodiments, the limiting assembly 31 further includes two lifting cylinders 314 and a rotation drive 315. The two lifting cylinders 314 are disposed on the central tube 24, and their output ends are respectively connected to the first half-ring 3121 and the second half-ring 3122, and are used to drive the first half-ring 3121 and the second half-ring 3122 to move along the axial direction of the central tube 24; the rotation drive 315 is disposed on one side of the chassis 22, and its output end is connected to the central tube 24, and is used to drive the central tube 24 to rotate around its axis.

[0055] like Figure 3As shown, both the first half-ring 3121 and the second half-ring 3122 can be connected to the central tube 24 via lifting cylinders 314. The rotation drive 315 can directly output rotational motion using a motor, hydraulic motor, pneumatic motor, etc., or indirectly drive the central tube 24 to rotate via a reducer, belt, chain, or other transmission device. Considering that the central tube 24 is a hollow structure with the core wire 11 passing through it, to ensure the stable rotation of the central tube 24, the rotation drive 315 can be specifically constructed as a combination mechanism including a motor, a worm gear, and a worm wheel; the motor is fixedly mounted on the frame 10 of the high-speed braiding machine 100, and the motor output shaft is connected to the worm gear, which meshes with the worm wheel sleeved on the outside of the central tube 24. When the motor starts, through the transmission of the worm gear and worm wheel, the central tube 24 is driven to rotate around its axis, which in turn drives the two half-rings to rotate via the two sets of lifting cylinders 314. The solution provided in this application embodiment drives the first half-ring 3121 and the second half-ring 3122 through two lifting cylinders 314, and drives the central tube 24 through the rotation drive component 315, which enables the limiting component 31 to conveniently limit and release the wire 231, further ensuring the repeatability of the overall structure.

[0056] See Figure 5 In some embodiments, the stripping assembly 32 includes a second cutter 322 disposed on the side of the fixed ring 311 away from the moving ring 312, and the second cutter 322 is capable of moving radially along the core wire 11 to approach or move away from the core wire 11.

[0057] The peeling assembly 32 may include a movable cylinder 323, the output end of which is connected to the second cutter 322, and the second cutter 322 is driven to move by the movable cylinder 323. In normal braiding mode, the moving cylinder 323 is in a retracted state, pulling the second cutter 322 away from the surface of the core wire 11, thus preventing the second cutter 322 from interfering with the normal movement and braiding operation of the core wire 11. When unwinding is required, the moving cylinder 323 is in an extended state, pushing the second cutter 322 radially inward along the core wire 11 until the blade tip abuts against the braided layer on the surface of the core wire 11. In this way, combined with the axial retraction of the core wire 11, the braided layer can be easily peeled off from the surface of the core wire 11. The second cutter 322 can also be a hot cutter. When the second cutter 322 is energized, it generates high temperature. Utilizing the principle of thermal melting and in conjunction with the axial retraction of the core wire 11, it can smoothly cut the braided layer on the surface of the core wire 11.

[0058] The solution provided in this application embodiment is that by setting a second cutter 322 on the side of the fixed ring 311 away from the moving ring 312, the second cutter 322, which can move radially along the core wire 11, can be conveniently peeled off from the braided layer on the surface of the core wire 11.

[0059] See Figure 3 and Figure 5 In some embodiments, the stripping assembly 32 includes a mounting sleeve 321 disposed on the side of the fixed ring 311 away from the moving ring 312; the mounting sleeve 321 is sleeved on the core wire 11, and the periphery of the mounting sleeve 321 is provided with a clearance hole adapted to the second cutter 322; the second cutter 322 is at least partially inserted through the clearance hole.

[0060] like Figure 3 and Figure 5 As shown, the peeling assembly 32 includes a mounting sleeve 321 disposed above the fixed ring 311, with a braided section between the fixed ring 311 and the mounting sleeve 321. The side wall of the mounting sleeve 321 has a clearance hole adapted to the second cutter 322. The shape of the clearance hole can be flexibly set according to the shape of the second cutter 322. Driven by the moving cylinder 323, the second cutter 322 can pass through the clearance hole and move radially along the interior of the mounting sleeve 321.

[0061] The solution provided in this application embodiment, by using the mounting sleeve 321 fitted on the core wire 11, can effectively guide and position the core wire 11 during the process of the second cutter 322 peeling off the unqualified braided layer on the core wire 11.

[0062] Secondly, please see Figure 9 The second aspect of this application also proposes a weaving method applied to the high-speed weaving machine 100 with retractable yarn in the above embodiments, the method comprising the following steps: S101. In the event of an unqualified braided layer appearing on the surface of the core wire 11, the moving ring 312 of the control limit assembly 31 moves between the wire feeding position and the braiding position and docks with the fixed ring 311 to cut and fix the multiple unbraided wires 231.

[0063] Driven by the lifting cylinder 314, the moving ring 312 moves upward, moves to the space between the yarn feeding position and the braiding position, and docks with the fixed ring 311, cutting and fixing the multiple unbraided yarns 231 between the moving ring 312 and the fixed ring 311, thus forming... Figure 6 The state shown.

[0064] S102, Control the conveying mechanism 1 to operate in the unwinding mode. After using the peeling component 32 to peel off the unqualified braided layer, cut off the peeled unqualified braided layer to form the braided layer end.

[0065] In the unwinding mode, the winding roller rotates in the opposite direction to release the core wire 11, and the unwinding roller retracts the core wire 11. Simultaneously, the tip of the second cutter 322 abuts against the braided layer on the surface of the core wire 11. As the core wire 11 continues to retract, the second cutter 322 axially cuts the braided layer, facilitating the removal of defective braided layers from the surface of the core wire 11. The removed braided layer can be manually or automatically wound up using a take-up roller. The operator manually cuts and removes the removed defective braided layer waste from the core wire 11, forming the braided layer end.

[0066] S103. In the unwinding mode, control the end of the braided layer to retract to between the yarn feeding position and the braiding position.

[0067] Retract the end of the braided layer between the yarn feed position and the braiding position to expose the end of the braided layer for easier operation in the next step.

[0068] S104. Fix the multiple unbraided threads 231 cut in S101 to the connection part P, and move the moving ring 312 toward the central tube 24 to separate the moving ring 312 from the fixed ring 311; wherein, the connection part P is a preset part of the braided layer on the surface of the core wire 11 on the end side of the braided layer that has not been peeled off.

[0069] Among them, see Figure 7 Multiple threads 231 can be fixed to the connection point P by methods such as winding or bonding. The connection point P is a predetermined part of the braided layer on the surface of the core wire 11 above the end of the braided layer that has not been peeled off. In this way, it can be ensured that there is an overlap between the new braided layer and the old braided layer on the surface of the core wire 11, thereby ensuring a stable connection between the re-braided layer and the aforementioned unpeeled layer. The moving ring 312 moves downward, which can separate the moving ring 312 from the fixed ring 311, and the threads 231 are released from the gap between the moving ring 312 and the fixed ring 311.

[0070] S105. Control the conveying mechanism 1 to operate in the infeed mode, convey the connecting part P to the weaving position, and restart weaving at the connecting part P through the weaving mechanism 2.

[0071] Continue executing the wire feeding mode of the conveying mechanism 1, and simultaneously start the braiding mechanism 2 to re-weave multiple threads 231 onto the surface of the core wire 11.

[0072] The method provided in this application effectively automates operations from unwinding and stripping to reweaving, greatly reducing manual intervention and improving production efficiency.

[0073] In some embodiments, considering that after the multiple unbraided threads 231 cut in S101 are fixed at the connection point P, both the moving ring 312 and the fixed ring 311 are located on the upper side of the threads 231, and the moving ring 312 cannot move to the lower side of the threads 231, when rebraiding is required again, the moving ring 312 can only be manually disassembled and reassembled to place the threads 231 between the moving ring 312 and the fixed ring 311. Therefore, the automatic and repeatable operation of the limiting component 31 cannot be achieved. Thus, in the high-speed braiding machine 100 with retractable threads described in the first aspect embodiment above, the center tube 24 is rotated... After the moving ring 312 is mounted on the chassis 22 and is configured to include a first half-ring 3121 and a second half-ring 3122, and the first half-ring 3121 and the second half-ring 3122 are connected to the central tube 24 in a manner that allows them to move along the axial direction of the central tube 24, the step of moving the moving ring 312 toward the central tube 24 in S104 to separate the moving ring 312 from the fixed ring 311 can be achieved through the following steps. In other words, the step of moving the moving ring 312 toward the central tube 24 in S104 to separate the moving ring 312 from the fixed ring 311 may include: Move the first half-ring 3121 toward the central tube 24 to the first position, and at the same time, rotate the first half-ring 3121 180°; Move the second half-ring 3122 toward the central tube 24 to the second position, and at the same time, rotate the second half-ring 3122 180°. The height of the second position is the same as the height of the first position.

[0074] Understandably, see Figure 7 and Figure 8 After multiple threads 231 are fixed to the connection point P, the first half-ring 3121 can be moved downwards first, while gradually controlling the first half-ring 3121 to rotate 180°, releasing part of the threads 231 below the first half-ring 3121, and causing the first half-ring 3121 to be screwed under another part of the threads 231; then, the second half-ring 3122 is controlled to move downwards and rotate 180° in the same way, releasing part of the threads 231 below it, and causing it to be screwed under another part of the threads 231, thereby placing the threads 231 back between the moving ring 312 and the fixed ring 311.

[0075] The method provided in this application embodiment can conveniently limit and release the thread 231 through the limiting component 31, and return the thread 231 to the position between the moving ring 312 and the fixed ring 311, thereby ensuring the automatic repeatability of the limiting component 31.

[0076] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0077] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A high-speed braiding machine with retractable yarn, characterized in that, include: The conveying mechanism (1) has an infeed mode and an outfeed mode for conveying the core wire (11); The braiding mechanism (2) includes a chassis (22) and a center tube (24), the braiding mechanism (2) being used to braid multiple threads (231) onto the surface of the core wire (11) in the wire feeding mode, and having a thread feeding position and a braiding position on the thread (231) feeding path; The unwinding mechanism (3), located on one side of the chassis (22), includes: The limiting component (31) includes a moving ring (312) and a fixed ring (311). The fixed ring (311) is located on the side of the central tube (24) away from the chassis (22). The moving ring (312) is movably disposed between the central tube (24) and the fixed ring (311). It can move to the space between the yarn supply position and the braiding position and dock with the fixed ring (311) to cut and fix the multiple unbraided yarns (231) between the moving ring (312) and the fixed ring (311). A stripping assembly (32), disposed on the side of the limiting assembly (31) away from the central tube (24), is used to strip the braided layer on the surface of the core wire (11) in the unwinding mode.

2. The high-speed braiding machine with retractable yarn according to claim 1, characterized in that, The central tube (24) is rotatably mounted on the chassis (22); The moving ring (312) includes: The first half-ring (3121) and the second half-ring (3122) are connected to the central tube (24) in a manner that they move along the axial direction of the central tube (24).

3. The high-speed braiding machine with retractable yarn according to claim 1, characterized in that, The fixed ring (311) and the moving ring (312) are respectively provided with a convex ring (3111) and an annular groove on the side opposite to each other; The convex ring (3111) can be inserted into the annular groove to fix the multiple wires (231) between the fixed ring (311) and the moving ring (312).

4. The high-speed braiding machine with retractable yarn according to claim 3, characterized in that, The shoulder of the convex ring (3111) and the opening end face of the groove are provided with a first cutter (313) and an abutting surface, respectively; When the convex ring (3111) is inserted into the groove, the first cutter (313) presses against the contact surface to cut the multiple threads (231) between the fixed ring (311) and the moving ring (312).

5. The high-speed braiding machine with retractable yarn according to claim 2, characterized in that, The limiting component (31) further includes: Two lifting cylinders (314) are disposed on the central tube (24). The output ends of the two lifting cylinders (314) are respectively connected to the first half ring (3121) and the second half ring (3122), and are respectively used to drive the first half ring (3121) and the second half ring (3122) to move along the axial direction of the central tube (24); A rotation drive (315) is disposed on one side of the chassis (22). The output end of the rotation drive (315) is connected to the central tube (24) and is used to drive the central tube (24) to rotate around its axis.

6. The high-speed braiding machine with retractable yarn according to claim 1, characterized in that, The stripping assembly (32) includes: The second cutter (322) is disposed on the side of the fixed ring (311) away from the moving ring (312). The second cutter (322) is capable of moving radially along the core wire (11) to approach or move away from the core wire (11).

7. The high-speed braiding machine with retractable yarn according to claim 6, characterized in that, The stripping assembly (32) includes: The mounting sleeve (321) is disposed on the side of the fixed ring (311) away from the moving ring (312); the mounting sleeve (321) is sleeved on the core wire (11) and has clearance holes on its periphery that are adapted to the second cutter (322); The second cutter (322) is at least partially inserted through the clearance hole.

8. The high-speed braiding machine with retractable yarn according to claim 1, characterized in that, The weaving mechanism (2) includes: Multiple pay-off frames (23) are arranged around the central tube (24), and the pay-off frames (23) are used to release the wire (231) at the wire feeding position. The braiding track (21) is used to guide the wire feeder (23) to move along a preset braiding track so as to use the wire (231) to braid a braided layer on the surface of the core wire (11).

9. A weaving method applied to a high-speed weaving machine with retractable yarn as described in any one of claims 1 to 8, characterized in that, The weaving method includes: S101. In the event of an unqualified braided layer on the surface of the core wire (11), the moving ring (312) of the control limit assembly (31) moves to the space between the wire feeding position and the braiding position and docks with the fixed ring (311) to cut and fix the multiple unbraided wires (231). S102, control the conveying mechanism (1) to run the unwinding mode, and after using the peeling component (32) to peel off the unqualified braided layer, cut off the peeled unqualified braided layer to form the braided layer end; S103. In the unwinding mode, control the braided layer end to retract to between the yarn supply position and the braiding position; S104. Fix the unbraided multiple threads (231) cut in S101 to the connection part (P), and move the moving ring (312) toward the central tube (24) to separate the moving ring (312) from the fixed ring (311); wherein, the connection part (P) is a predetermined part of the braided layer on the surface of the core wire (11) on one side of the braided layer end that has not been peeled off; S105. Control the conveying mechanism (1) to operate in the thread feeding mode, convey the connecting part (P) to the weaving position, and restart weaving at the connecting part (P) through the weaving mechanism (2).

10. The weaving method according to claim 9, characterized in that, The central tube (24) is rotatably mounted on the chassis (22); the moving ring (312) includes a first half-ring (3121) and a second half-ring (3122), and the first half-ring (3121) and the second half-ring (3122) are respectively connected to the central tube (24) in a manner that moves along the axial direction of the central tube (24); The step of moving the moving ring (312) toward the central tube (24) to separate the moving ring (312) from the fixed ring (311) includes: Move the first half-ring (3121) toward the central tube (24) to the first position, and at the same time, rotate the first half-ring (3121) 180°; Move the second half-ring (3122) toward the central tube (24) to the second position, and at the same time, rotate the second half-ring (3122) 180°; The height of the second position is the same as the height of the first position.

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