Wire end multi-fold stranding machine for transformer winding processing

Abstract

The application provides a transformer winding processing wire end multi-fold stranding machine, which comprises a transverse displacement guide rail, a wire outlet machine and a winding forming module. The wire outlet machine and the winding forming module are arranged opposite to the two ends of the transverse displacement guide rail. The wire outlet machine conveys single winding copper wire, and the winding forming module clamps and drives the rotation of the transformer body. The active stranding module comprises an outer ring component, a first wire supporting component is fixed in the outer ring component and used for stranding the wire end, and a first wire blocking component is movably installed in the first wire supporting component. The active stranding module and the driven stranding module are provided. Through the cooperation of the wire outlet machine, the winding forming module, the active stranding module, the driven stranding module and the automatic sleeve module, the transverse displacement guide rail is arranged to realize the sliding adjustment of the processing components, the wire end traction module sequentially completes the winding copper wire traction, the positioning sleeve pre-sleeving, the winding manufacturing, the wire end bending, the wire end stranding and the positioning sleeve heat shrink fixing, and realizes the continuous operation from the winding manufacturing to the wire end processing and protection.

Description

Technical Field

[0001] This invention relates to the field of transformer winding stranding technology, specifically to a multi-fold stranding machine for transformer winding processing. Background Technology

[0002] Small transformers, with their advantages of small size, low energy consumption, and strong adaptability, are widely used in electronic equipment, communication equipment, precision instruments, and other fields. The quality of their winding processing directly determines the transformer's electrical performance, operational stability, and service life. One of the core processes in the winding of small transformers is winding the copper wire onto the transformer core. After winding, a section of the winding wire is left as a tail. This tail needs to be fixed to the transformer's pins to achieve effective connection between the winding and the external circuit. Therefore, the reliability of the winding tail's fixation is crucial to ensuring the normal operation of the transformer.

[0003] Currently, the industry commonly uses manual operation to fix the winding ends of small transformers: after the winding is completed, operators manually bend the winding ends multiple times to secure them to the transformer pins. However, with the miniaturization and high precision of electronic equipment, small transformers often use single ultra-micro winding copper wires. These wires have extremely thin diameters and inherently low structural strength. The existing manual multi-bending process has significant technical defects, leading to numerous problems during processing: firstly, the multi-bending operation damages the internal structure of the ultra-micro winding copper wire ends, causing lattice distortion and directly resulting in a significant decrease in the mechanical strength of the winding ends; secondly, when the bending deformation is large enough to meet the fixing requirements, the insufficiently strong winding ends are prone to breakage. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a multi-fold stranding machine for processing transformer windings, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A multi-fold stranding machine for processing transformer windings, including a base;

[0007] A transverse shift guide rail, a wire output machine, and a winding forming module are respectively provided at one end of the surface of the base. The wire output machine and the winding forming module are arranged opposite to the two ends of the transverse shift guide rail. The wire output machine is used to transport a single winding copper wire, and the winding forming module is used to clamp and drive the transformer body to rotate, so as to wind the winding copper wire around the transformer body to complete the winding.

[0008] An active stranding module includes a drive support component and an outer ring component. The drive support component is slidably mounted on a transverse shift guide rail, and its top is engaged with an outer ring component that is driven to rotate. A first wire support component is fixed inside the outer ring component for rotating with it to strand the tail of the winding wire. A first wire stop component is movably mounted inside the first wire support component for extending inward to block the tail of the winding wire to assist in bending.

[0009] And a driven twisting module that is arranged opposite to the active twisting module and slidably mounted on the transverse shift guide rail;

[0010] The first wire-blocking component includes a main movable baffle, a first adjusting plate, and an active baffle drive. The main movable baffle slides through the first wire-supporting component. The first adjusting plate is vertically disposed at the outer end of the main movable baffle. The active baffle drive is connected to the first adjusting plate to drive the main movable baffle to extend inward to above the winding wire tail to form a top limit. It works in conjunction with the wire end traction module to pull the winding wire tail and alternately blocks the winding wire tail with the driven twisting module to achieve an S-shaped bend in the winding wire tail.

[0011] This invention provides a multi-fold stranding machine for processing transformer windings. Compared with the prior art, it has the following advantages:

[0012] 1. To address the technical problem of existing transformer winding processing equipment being functionally fragmented, only capable of completing winding operations while subsequent processes such as wire tail bending, stranding, and bushing protection rely on manual handling and intervention, resulting in long production cycles, this invention utilizes a combination of a wire feeding machine, a winding forming module, an active stranding module, a driven stranding module, and an automatic bushing module. A horizontal displacement guide rail is used to achieve sliding adjustment of each processing component. Through the orderly switching between winding processing mode, wire tail bending mode, wire tail stranding mode, and bushing mode, the wire end traction module sequentially completes the entire automated process of winding copper wire traction and threading, positioning bushing pre-fitting, winding fabrication, wire tail bending, wire tail stranding, and positioning bushing heat shrinking fixation, achieving continuous operation from winding fabrication to wire tail processing and protection.

[0013] 2. Existing technologies require manual bending of the wire tail into an S-shape before manual twisting, which makes it difficult to guarantee the tightness and consistency of the twisting, resulting in insufficient structural strength and easy breakage of the wire tail. This invention addresses this problem by setting a main movable baffle driven by an active baffle driver in the active twisting module, extending it inwards to above the winding wire tail to form a top limit. This, combined with the wire end traction module pulling the winding wire tail, alternately blocks the winding wire tail with the driven movable baffle driven by a driven baffle driver in the driven twisting module. This ensures that the winding wire tail moves according to a preset direction during one reciprocating motion between the first and second wire support components. The trajectory is precisely bent into an S-shaped structure; then the active clamping claw plate and the driven clamping claw plate close synchronously to clamp the two ends of the S-shaped winding wire tail respectively. The outer ring component closes the wire routing gap through the movable gate tooth plate to form a complete ring structure. The drive gear drives the tooth ring to drive the active clamping claw plate to rotate stably, so that the S-shaped winding wire tail is twisted into one piece under the clamping constraint at both ends, forming a tightly twisted wire tail body. This not only improves the structural strength of the wire tail to avoid subsequent bending and breakage, but also ensures the uniformity of twisting. At the same time, the combination of S-shaped bending and twisting further optimizes the mechanical properties of the wire tail, adapting to the long-term use requirements of transformer windings.

[0014] 3. By using a heat-shrinkable positioning sleeve, cards are symmetrically set on the side of the positioning sleeve. A pin slot is opened in the middle of each group of cards. When the winding wire tail bends through the transformer pin, the pin is inserted into the pin slot to realize the positioning sleeve and the transformer pin to lock and position, so as to avoid the wire tail from shifting or falling off. At the same time, after the positioning sleeve is heat-shrinked, it tightly wraps around the outside of the stranded winding wire tail, which not only forms a seal to prevent the wire tail from loosening and being contaminated, but also adapts to the bending shape of the wire tail to avoid cracking. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the overall structure of the present invention is shown. Figure 1 ;

[0017] Figure 2 A schematic diagram of the overall structure of the present invention is shown. Figure 2 ;

[0018] Figure 3 This diagram shows a first-view structural diagram of the base top of the present invention;

[0019] Figure 4 A schematic diagram of the second-view structure of the base top of the present invention is shown;

[0020] Figure 5 This diagram illustrates the installation position relationship between the automatic sleeve module and the winding forming module of the present invention.

[0021] Figure 6 A schematic diagram of the automatic sleeve module structure of the present invention is shown;

[0022] Figure 7 A schematic diagram of the top connection structure of the transverse displacement guide rail of the present invention is shown;

[0023] Figure 8 A schematic diagram of the active twisting module structure of the present invention is shown;

[0024] Figure 9 A schematic diagram of the winding wire tail bending state structure of the present invention is shown;

[0025] Figure 10 A schematic diagram of the pressing edge component structure of the present invention is shown;

[0026] Figure 11 This diagram shows the main movable baffle and the extended portion of the movable baffle in the present invention.

[0027] Figure 12 A schematic diagram of the structure of the first wire support component and the first wire blocking component of the present invention is shown;

[0028] Figure 13 A schematic diagram of the driven stranding module structure of the present invention is shown;

[0029] Figure 14 A schematic diagram of the cross-sectional structure of the active twisting module of the present invention is shown;

[0030] Figure 15 A schematic diagram of the wire-end traction module structure of the present invention is shown;

[0031] Figure 16 A schematic diagram of the cutting component and the tube feeding roller assembly of the present invention is shown;

[0032] Figure 17 A schematic diagram of the positioning sleeve structure of the present invention is shown.

[0033] As shown in the figure:

[0034] 100. Base; 110. Horizontal displacement guide rail;

[0035] 200. Active twisting module; 210. Active slide; 220. Drive support component; 221. Support column; 222. Base; 223. Drive gear; 224. Guide wheel frame; 230. Outer ring component; 231. Gear ring; 232. Valve tooth plate; 233. First motor; 234. Cable routing notch; 240. First cable support component; 241. Fixing rod; 242. Clamping base; 243. First opening and closing guide rail; 244. Active clamping claw plate; 245. First guide hole; 250. First cable blocking component; 251. Main movable baffle; 252. First adjusting plate; 253. Active baffle drive component;

[0036] 300. Driven stranding module; 310. Driven slide; 320. Second wire support component; 321. Lifting drive component; 322. Driven clamping base; 323. Second opening and closing guide rail; 324. Driven clamping claw plate; 325. Second guide hole; 330. Second wire blocking component; 331. Driven movable baffle; 332. Second adjusting plate; 333. Driven baffle drive component; 340. Heating component; 341. Heater mounting rod; 342. Hot air blower; 343. Air guide cover;

[0037] 400. Outgoing cable machine;

[0038] 500. Wire end traction module; 510. Clamping transverse guide rail; 520. First traction component; 521. Main traction lifting component; 522. First gripper; 530. Second traction component; 531. Slave traction lifting component; 532. Second gripper.

[0039] 600 Automatic sleeve module; 610 Positioning baffle; 620 Receiver lifting component; 621 Receiver; 630 Tube feeding roller assembly; 640 Cutting component; 641 Module mounting bracket; 642 Lateral shifting drive component; 643 Horizontal movable plate; 644 Feed drive component; 645 Lifting cutter plate; 646 Main cutter; 647 Secondary cutter; 648 Mating plate; 650 Rewinding reel; 660 Positioning frame;

[0040] 700. Winding forming module; 710. Working plate; 720. Horizontal sliding plate; 730. Inner support clamp; 740. Edge pressing component; 741. Horizontal guide rail for winding pressure roller; 742. Lifting guide rail; 743. Winding pressure roller.

[0041] 800. Positioning sleeve; 810. Card; 811. Pin slot.

[0042] 900. Transformer body; 910. Winding copper wire; 920. Winding wire end. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Combination Figures 1-17 As shown, the multi-fold stranding machine for transformer winding processing provided by the present invention includes:

[0045] Base 100;

[0046] The transverse shift guide rail 110 is provided on the surface of the base 100 and is located between the cable outlet 400 and the winding forming module 700.

[0047] Active twisting module 200, such as Figure 6 , Figure 7 As shown, the device includes an active slide 210, a drive support component 220, an outer ring component 230, a first wire support component 240, and a first wire stop component 250. The active slide 210 is slidably mounted on the surface of the transverse shift guide rail 110 and positioned close to the wire output machine 400 for adjusting the wire tail processing station. The drive support component 220 is mounted on the top of the active slide 210. The outer ring component 230 is engaged with the top of the drive support component 220, which supports the outer ring component 230 in a vertical position and drives its rotation. The first wire support component 240, used for wire guide and assisting in wire tail bending, is fixedly installed inside the outer ring component 230. The first wire stop component 250 is installed inside the first wire support component 240.

[0048] Driven twisting module 300, continuing as follows Figure 6 , Figure 7 As shown, the system includes a driven slide 310, a second wire support component 320, a second wire stop component 330, and a heating component 340. The driven slide 310 is slidably mounted on the surface of the transverse shift guide rail 110 and positioned close to the winding forming module 700 for adjusting the wire tail processing position. The top of the driven slide 310 has a second wire support component 320 for supporting the wire tail. Inside the second wire support component 320 is a second wire stop component 330 for guiding and assisting in bending the wire tail. A heating component 340 for positioning the heat-shrinkable sleeve is mounted on the side of the second wire support component 320 closest to the winding forming module 700.

[0049] The lead-out machine 400 is located at one end of the surface of the base 100 and is used to transport a single winding copper wire 910.

[0050] The wire end pulling module 500 is located directly above the horizontal shifting guide rail 110. It is used to clamp and pull the winding copper wire end through the active stranding module, the driven stranding module and the positioning sleeve in sequence, and pull the winding wire end to complete the bending operation.

[0051] Automatic bushing module 600 is installed between driven stranding module 300 and winding forming module 700. It is used to cut raw material tubes into positioning bushings with pin slots and transport the positioning bushings to the fitting position for pre-fitting onto the winding copper wire. The positioning bushing 800 is heat-shrinkably fixed to the outside of the stranded winding wire tail 920 and is positioned by engaging with the transformer pins through its pin slot 811.

[0052] The winding forming module 700 is located at the other end of the surface of the base 100 and is arranged opposite to the wire output machine 400. It is used to internally hold the target transformer body to be wound and drive it to rotate so as to complete the winding production in conjunction with the winding copper wire 910 delivered by the wire output machine 400.

[0053] Existing transformer winding processing equipment has limited functionality, only capable of completing the winding operation. Subsequent processes such as wire tail bending, stranding, and bushing protection rely on manual handling and intervention, resulting in long production cycles, inconsistent wire tail forming quality, and a lack of effective sealing protection. Generally, in traditional processing, the wire tail needs to be bent into an S-shape manually and then stranded manually, making it difficult to guarantee the tightness and consistency of the stranding, and also failing to achieve automated installation and positioning of the bushing.

[0054] Based on this, as an embodiment of the present invention, by proposing a customized integrated winding processing mode, wire tail bending mode, wire tail stranding mode and bushing mode, the entire process of winding production to wire tail treatment and protection is automated.

[0055] In practice, the principles of each working mode are as follows:

[0056] In winding processing mode, such as Figure 9 As shown, the wire end traction module 500 clamps the wire end through the active stranding module 200, the driven stranding module 300, and the positioning sleeve, and brings the wire end into contact with the transformer. The positioning sleeve is pre-fitted onto the winding copper wire 910; as shown... Figures 1-4 , Figure 9 , Figure 14As shown, the wire end traction module 500 clamps the wire end of the winding copper wire 910 and sequentially pulls it through the wiring notch 234 of the active stranding module 200, the top space of the driven stranding module 300, and the positioning sleeve 800 pre-positioned by the automatic bushing module 600, finally fixing the wire end to the surface of the transformer body 900. It should be noted that during this process, the positioning sleeve 800 (through the linkage between the wire end traction module 500 and the automatic bushing module 600) is pre-fitted onto the winding copper wire 910 and moves synchronously with the winding copper wire 910 to the winding station.

[0057] In the tail bending mode, when the transformer winding is finished, a winding tail 920 of a preset length is reserved at the end of the winding. The wire traction module 500 clamps the end of the winding tail 920. First, above the first wire support component 240, the first wire stop component 250 provides a top limit and pulls it to the second wire support component 320. Then, after the second wire stop component 330 provides a top limit, it returns to the first wire support component 240. Thus, through one reciprocating motion between the first wire support component 240 and the second wire support component 320, combined with the sequential blocking action of the first wire stop component 250 and the second wire stop component 330, the winding tail 920 is precisely bent into an S-shaped structure according to the preset trajectory.

[0058] In the wire end twisting mode, such as Figure 7 As shown, the first wire-blocking component 250 and the second wire-blocking component 330 retract to avoid obstruction, and the first wire-supporting component 240 and the second wire-supporting component 320 close simultaneously, firmly clamping both ends of the S-shaped winding wire tail 920 respectively. Then, as... Figure 14 As shown, the outer ring component 230 closes the wiring gap 234, forming a complete ring structure. The drive support component 220 drives the outer ring component 230 to drive the first wire support component 240 to rotate stably, so that the S-shaped winding wire tail 920 is twisted into one piece under the clamping constraint at both ends, forming a tightly twisted wire tail body to prevent loosening or contamination.

[0059] In the sleeve mode, the first wire support component 240 maintains clamping, and the second wire support component 320 transfers the pre-installed positioning sleeve to the winding tail 920 and heat-shrinks the positioning sleeve. The positioning sleeve is used to protect the winding tail 920 and engages with the transformer pins for positioning. The first wire support component 240 maintains clamping and fixing one end of the winding tail 920, and the second wire support component 320 separates and descends to clamp the pre-installed positioning sleeve 800. It moves along the transverse shift guide 110 to accurately transfer the positioning sleeve 800 to the outer fitting position of the winding tail 920. Then, the heating component 340 starts to heat-shrink the positioning sleeve 800, so that the positioning sleeve 800 tightly covers the outside of the stranded winding tail 920, achieving sealing protection of the tail. It also engages with the transformer pins through the pin slots 811 of the positioning sleeve 800 to ensure the precise position of the tail after bending.

[0060] In one embodiment of the present invention, such as Figure 7 , Figure 8 as well as Figure 14 As shown, the proposed drive support component 220 includes a support column 221, a base 222, a drive gear 223, and a guide wheel frame 224. The support column 221 is fixedly installed on the active slide 210, the base 222 is located at the top of the support column 221, the drive gear 223 is installed inside the base 222 and meshes with the bottom of the outer ring component 230, and the guide wheel frame 224 is symmetrically arranged on the surface of the base 222 and fits against the bottom sides of the outer ring component 230.

[0061] This invention utilizes a three-point support structure formed by the support column 221 and the symmetrical guide wheel frame 224 to firmly fix the outer ring component 230 in a vertical state. At the same time, the drive gear 223 directly provides the rotation driving force through meshing with the outer ring component 230, ensuring that the outer ring component 230 rotates smoothly and stably without tilting or shaking, ensuring stable rotation speed during wire tail stranding, and improving stranding uniformity.

[0062] Furthermore, continuing as Figure 7 , Figure 8 as well as Figure 14 As shown, the proposed outer ring component 230 includes a gear ring 231, a gate gear plate 232, and a first motor 233. The gear ring 231 is meshed and installed on the top of the drive gear 223 to drive the first wire support component 240 to rotate. The gate gear plate 232 is rotatably installed at the wire routing notch 234 inside the gear ring 231 to control the opening and closing of the wire routing notch 234 to switch between the wire threading and stranding positions. The first motor 233 is installed on the side wall of the gear ring 231 to drive the gate gear plate 232 to rotate.

[0063] The first motor 233 drives the movable gear plate 232 to rotate, thereby controlling the opening and closing of the wire routing gap 234. In the winding processing mode, it is opened to allow the wire end traction module 500 to pass through, and closed in the wire tail twisting mode to form a complete toothed ring 231, ensuring that the drive gear 223 and the toothed ring 231 are fully meshed and the transmission is stable.

[0064] In one embodiment of the present invention, such as Figure 7 , Figure 8 , Figure 12 as well as Figure 14As shown, the proposed first wire-supporting component 240 for holding and clamping the wire tail includes a clamping base 242, a first opening and closing guide rail 243, and an active clamping claw plate 244; simultaneously, the first wire-blocking component 250 includes a main movable baffle 251, a first adjusting plate 252, and an active baffle drive component 253. The clamping base 242 is fixedly installed on the inner wall of the toothed ring 231 via a fixing rod 241 to achieve synchronous rotation with the toothed ring 231 to drive the wire tail to twist. The first opening and closing guide rail 243 is located on... On the surface of the clamping base 242, the active clamping claw plate 244 is slidably mounted on the top of the first opening and closing guide rail 243, and a first guide hole 245 is provided on one side thereon. The main movable baffle 251 slides through the first guide hole 245 to provide precise guidance for extending inward to the top of the winding wire tail 920 in the wire tail bending mode. The first adjusting plate 252 is vertically arranged on the outer end of the main movable baffle 251. The active baffle drive component 253 is installed on the side wall of the active clamping claw plate 244 and connected to the bottom of the first adjusting plate 252.

[0065] To achieve precise wire blocking and bending assistance, this invention utilizes an active baffle drive 253 to drive the main movable baffle 251 to slide and extend through the first guide hole 245. Thus, in the wire tail bending mode, the main movable baffle 251 extends inward to the top of the winding wire tail 920, providing precise guidance for the wire head traction module 500 to traction the winding wire tail 920, ensuring that the winding wire tail 920 bends into an S-shape according to a preset trajectory, and ensuring that the bending shape is regular.

[0066] Meanwhile, to achieve simultaneous clamping and twisting, the present invention utilizes the active clamping claw plate 244 of the first wire support component 240 to achieve symmetrical opening and closing through the first opening and closing guide rail 243. Thus, in the wire tail twisting mode, the active clamping claw plate 244 can firmly clamp one end of the S-shaped winding wire tail 920 when closed, avoiding the wire tail from sliding and shifting during twisting, and ensuring twisting accuracy. The clamping base 242 is connected to the inner wall of the toothed ring 231 through the fixing rod 241, and can rotate synchronously with the toothed ring 231 to achieve simultaneous clamping and twisting.

[0067] In one embodiment of the present invention, such as Figure 7 , Figure 13 As shown, the proposed second line support component 320 includes a lifting drive component 321, a driven clamping base 322, a second opening and closing guide rail 323, and a driven clamping claw plate 324; meanwhile, the second line blocking component 330 includes a driven movable baffle 331, a second adjusting plate 332, and a driven baffle drive component 333.

[0068] In a specific implementation, the lifting drive component 321 is vertically disposed on the top surface of the driven slide 310, the driven clamping base 322 is installed on the top of the lifting drive component 321, the second opening and closing guide rail 323 is disposed on the surface of the driven clamping base 322, the driven clamping claw plate 324 is symmetrically slidably installed on the top of the second opening and closing guide rail 323, and a second guide hole 325 is provided on one side thereon.

[0069] Furthermore, the movable baffle 331 slides through the second guide hole 325, the second adjusting plate 332 is vertically disposed at the outer end of the movable baffle 331, and the driven baffle drive member 333 is installed on the side wall of the driven clamping claw plate 324 and connected to the bottom end of the second adjusting plate 332.

[0070] This invention uses a driven baffle drive 333 to drive the movable baffle 331 to slide and extend through the second guide hole 325, alternating with the main movable baffle 251 to achieve S-shaped bending guidance of the winding tail 920. The driven clamping claw plate 324 is driven to open and close through the second opening and closing guide rail 323. In the winding tail twisting mode, it closes to clamp the winding tail 920, and in the sleeve mode, it clamps the positioning sleeve 800 to achieve transfer positioning. At the same time, the height is adjusted by the lifting drive 321 to adapt to different working positions.

[0071] In one embodiment of the present invention, the following continues... Figure 7 , Figure 13 As shown, the proposed heating component 340 includes a heater mounting rod 341, a hot air blower 342, and an air guide shroud 343. The heater mounting rod 341 is symmetrically fixed at both ends of the outer wall of the second opening / closing guide rail 323. Two sets of hot air blowers 342 are respectively installed at the top of the heater mounting rod 341. The air guide shroud 343 is installed at the air outlet of the hot air blower 342. With the two sets of hot air blowers 342 and the air guide shroud 343 arranged vertically relative to each other, hot air is simultaneously output from both sides of the positioning sleeve 800 to achieve uniform heating from all directions, avoiding localized overheating or insufficient heat shrinkage. Furthermore, by integrating the heating component 340 into the outer wall of the second opening / closing guide rail 323, precise coordination with the driven winding module 300 is achieved. This allows the positioning sleeve 800 to be directly heat-shrunken after being transferred to the winding wire tail 920, eliminating the need for transfer to a separate heat shrinking device, simplifying the process and improving heat shrinkage efficiency.

[0072] In one embodiment of the present invention, such as Figure 17As shown, the proposed positioning sleeve 800 is made of heat-shrinkable material. Symmetrical cards 810 are provided on the side of the positioning sleeve 800, and each set of cards 810 has a pin slot 811 in the middle. When the winding wire tail 920 bends through the transformer pin, the pin snaps into the pin slot 811. The positioning sleeve 800 is securely positioned by the snap-fit ​​between the pin slot 811 and the transformer pin, preventing the wire tail from shifting or falling off. Simultaneously, the heat-shrinkable properties allow the positioning sleeve 800 to tightly wrap around the outside of the stranded winding wire tail 920, forming a sealed protection to prevent loosening and contamination, and also adapting to the bending shape of the wire tail to prevent cracking.

[0073] In one embodiment of the present invention, such as Figures 1-6 As shown, the proposed automatic sleeve module 600 includes a positioning baffle 610, a receiving seat lifting component 620, a receiving seat 621, a tube feeding roller group 630, a cutting component 640, a winding reel 650, and a positioning frame 660. The positioning baffle 610 is located at one end of the transverse shift guide rail 110 near the winding forming module 700. It protects the positioning sleeve by blocking the receiving seat 621 from one side. The receiving seat lifting member 620 is installed on one side of the positioning baffle 610. The receiving seat 621 is located at the top of the receiving seat lifting member 620 to receive and position the slit positioning sleeve. The positioning frame 660 is located on the outside of the receiving seat 621. The winding reel 650 is installed at the outer end of the positioning frame 660 and is wound with the raw material tube. The tube feeding roller group 630 is located at the inner end of the positioning frame 660 and is used to clamp and convey the raw material tube to the cutting station. The cutting member 640 is installed on the output side of the tube feeding roller group 630 and is used to cut the raw material tube to make the positioning sleeve and simultaneously cut the pin slot on the positioning sleeve.

[0074] The principle is that the raw material tube is released by the take-up reel 650, and then clamped and conveyed by the tube feeding roller group 630 to the cutting part 640 for slitting and making positioning sleeves. The positioning sleeve is then received by the receiving seat 621 and the position is adjusted by the receiving seat lifting part 620 to realize the automated preparation and precise pre-positioning of the positioning sleeve.

[0075] Furthermore, such as Figure 16As shown, the proposed cutting component 640 includes a module mounting bracket 641, a lateral shifting drive 642, a horizontal movable plate 643, a feed drive 644, a lifting cutter plate 645, a main cutter 646, a secondary cutter 647, and a mating plate 648. The module mounting bracket 641 is fixedly mounted on the base 100. The lateral shifting drive 642 is installed inside the module mounting bracket 641. The horizontal movable plate 643 is located at the output end of the lateral shifting drive 642. The lifting cutter plate 645 is located at the bottom of the horizontal movable plate 643. The feed drive 644 is installed on the top surface of the horizontal movable plate 643 and is used to drive the lifting cutter plate 645 to rise and fall. The main cutter 646 is vertically arranged on one side of the bottom surface of the lifting cutter plate 645. The secondary cutter 647 is symmetrically arranged on the other side of the bottom surface of the lifting cutter plate 645 and parallel to the main cutter 646. The mating plate 648 is located at the bottom of the lifting cutter plate 645.

[0076] Based on the above technical concept, it should be noted that the automatic sleeve module 600 proposed in this invention can automatically complete the release, conveying, and cutting of raw material tubes to produce positioning sleeves. Simultaneously, the auxiliary cutter 647 synchronously processes the pin slots 811, achieving integrated processing of the positioning sleeves without the need for separate processes, significantly improving the efficiency of positioning sleeve production. The positioning baffle 610 and the receiving seat 621 work together to position and protect the processed positioning sleeves, preventing displacement or damage during conveying. The clamping and conveying by the tube feeding roller group 630 ensures the stability of the raw material tube conveying, improving the continuity of positioning sleeve processing and conveying.

[0077] In one embodiment of the present invention, such as Figure 1 , Figure 5 As shown, the proposed winding forming module 700 includes a working plate 710, a translational vertical plate 720, an inner support clamp 730, and a pressing component 740. The working plate 710 is fixedly installed on the other end of the surface of the base 100, the translational vertical plate 720 is longitudinally slidably installed on the surface of the working plate 710, the inner support clamp 730 is provided on the inner wall of the translational vertical plate 720 to clamp the transformer body 900, and the pressing component 740 is provided on the surface of the working plate 710.

[0078] Furthermore, such as Figure 10 As shown, the pressing component 740 includes a winding pressing roller transverse guide rail 741, a lifting guide rail 742, and a winding pressing roller 743. In a specific implementation, the winding pressing roller transverse guide rail 741 is located in the middle of the surface of the working plate 710, the lifting guide rail 742 is slidably installed on the top of the winding pressing roller transverse guide rail 741, and the winding pressing roller 743 is slidably installed on the side wall of the lifting guide rail 742. The pressing copper wire is used to adhere to the transformer body 900.

[0079] The vertical plate 720 moves the inner support clamp 730, which firmly clamps the transformer body 900, preventing wobbling during the transformer's rotation and winding. This also drives the transformer body 900 to rotate stably, ensuring uniform winding of the copper wire 910 and improving winding accuracy. Simultaneously, the pressing component 740 works in conjunction with the winding pressure roller transverse guide rail 741 and the lifting guide rail 742, driving the winding pressure roller 743 to precisely press down on the copper wire 910, ensuring a tight fit between the copper wire 910 and the transformer body 900. This prevents loosening during winding and improves the mechanical strength and conductivity of the winding. Furthermore, the downward pressure of the winding pressure roller 743 can be flexibly adjusted to accommodate winding requirements of different specifications of copper wire 910.

[0080] In one embodiment of the present invention, such as Figure 1 , Figure 15 As shown, the proposed line-end traction module 500 includes a clamping transverse guide rail 510, a first traction component 520, and a second traction component 530. The clamping transverse guide rail 510 is arranged parallel to and above the transverse displacement guide rail 110. The first traction component 520 includes a main traction lifting component 521 and a first gripper 522. Similarly, the second traction component 530 includes a secondary traction lifting component 531 and a second gripper 532. In specific implementation, both the main traction lifting component 521 and the secondary traction lifting component 531 are vertically arranged, and their top ends are slidably connected to the clamping transverse guide rail 510. The first gripper 522 and the second gripper 532 are respectively located at the bottom ends of the main traction lifting component 521 and the secondary traction lifting component 531.

[0081] Based on the above technical concept, by cooperating with the clamping transverse guide rail 510, the main traction lifting component 521, and the driven traction lifting component 531, the horizontal movement and vertical lifting adjustment of the first clamp 522 and the second clamp 532 can be realized, thereby enabling the two clamps to move independently or in concert. In the winding processing mode, the winding copper wire 910 is threaded and the positioning sleeve 800 is installed. During the wire tail processing, the first clamp 522 independently pulls the winding wire tail 920 to complete the bending operation. This allows a single component to cover the needs of multiple stages such as threading, bending, and clamping, simplifying the equipment structure and operation process; at the same time, it improves the accuracy of clamping and traction and the consistency of the quality of winding processing and wire tail processing.

[0082] Working principle of the invention:

[0083] S1. Positioning sleeve pre-positioning: such as Figure 3 As shown, the receiving seat 621 descends to the preset loading position, and the positioning baffle 610 blocks the receiving seat 621; the tube feeding roller group 630 clamps the output raw material tube, as shown. Figure 4As shown, the take-up reel 650 releases the raw material tube. When the output length of the raw material tube reaches the standard, the feed drive 644 drives the lifting cutter plate 645 to descend. The main cutter 646 cuts the raw material tube to obtain the positioning sleeve. The auxiliary cutter 647 cuts the pin slot 811 on the positioning sleeve card 810. The lateral shift drive 642 drives the horizontal movable plate 643 to move laterally, pushing the positioning sleeve into the receiving seat 621 and then resetting. The receiving seat lifting component 620 drives the receiving seat 621 to rise to the waiting position.

[0084] S2, Positioning sleeve threading: such as Figure 2 As shown, the first gripper 522 and the second gripper 532 move to the output end of the cable feeder 400 to grip the cable end, and move synchronously along the gripping transverse guide rail 510, as shown. Figure 3 , Figure 8 As shown, the first motor 233 drives the movable gear plate 232 to open the wiring notch 234, allowing the wire end to pass through the wiring notch 234 and the top of the driven stranding module 300; when the first gripper 522 approaches the receiving seat 621, it releases and lifts to the output end; the second gripper 532 pushes the wire end through the positioning sleeve; after the first gripper 522 clamps the wire end that has passed through, the second gripper 532 retracts; the first gripper 522 moves the wire end to the surface of the transformer body 900, as shown. Figure 5 , Figure 10 As shown, the winding pressure roller 743 presses down to fix the wire end, and the first gripper 522 lifts up to retract it.

[0085] S3, Winding fabrication: (e.g., ...) Figure 5 As shown, the vertical plate 720 moves, and the inner support clamp 730 drives the transformer body 900 to rotate, so that the winding copper wire 910 is wound to complete the winding.

[0086] S4, Line tail bend: such as Figure 4 , Figure 9 As shown, the first gripper 522 grips the end of the wire, and as... Figure 11 As shown, the winding wire tail 920 passes between the active clamping claw plate 244 and the driven clamping claw plate 324; as Figure 12 As shown, the active baffle drive 253 drives the main movable baffle 251 to extend inward, and the first gripper 522 pulls the wire tail through the upper part of the main movable baffle 251 to between the driven gripper plate 324. The driven baffle drive 333 drives the driven movable baffle 331 to extend inward, and the first gripper 522 pulls the wire tail through the upper part of the driven movable baffle 331 back to between the active gripper plate 244. The winding wire tail 920 is bent into an S-shape.

[0087] S5. Wire Tail Twisting: The first gripper 522 disengages, and the active gripper plate 244 and the driven gripper plate 324 close to clamp both ends of the S-shaped winding wire tail 920; (e.g., ...) Figure 14As shown, the gate tooth plate 232 closes the wire routing notch 234 to form a complete toothed ring 231. The drive gear 223 drives the toothed ring 231 to rotate. The guide wheel frame 224 supports the stable rotation of the toothed ring 231, which in turn drives the active clamping claw plate 244 to rotate, causing the winding wire tail 920 to be twisted into one piece.

[0088] S6, Positioning sleeve assembly: After twisting is completed, as follows Figure 11 As shown, the driven gripper plate 324 separates, while the active gripper plate 244 maintains the gripping action. Figure 3 , Figure 7 As shown, the lifting drive 321 drives the driven clamping base 322 to descend, the driven slide 310 moves to below the positioning sleeve, and the driven clamping claw plate 324 lifts up to clamp the positioning sleeve; the driven slide 310 moves to allow the positioning sleeve to fit into the winding wire tail 920, the driven clamping claw plate 324 is released, the driven slide 310 reciprocates, and the hot air blower 342 outputs hot air through the air guide shroud 343 to heat shrink and fix the positioning sleeve to the outside of the winding wire tail 920; the active clamping claw plate 244 is released, and its clamping area is the wire tail contact part.

[0089] S7. Wire tail locking: The transformer body 900 is removed manually or by a robotic arm, and the winding wire tail 920 is bent between the pins. The pins are locked into the pin slots 811 to achieve positioning sleeve protection and positioning. At the same time, the twisted winding wire tail 920 also further improves the strength of the winding wire tail 920 and avoids bending to reduce the strength.

[0090] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-fold stranding machine for processing transformer windings, characterized in that, include: Base (100); A transverse shift guide rail (110), a wire feeder (400), and a winding forming module (700) are respectively provided at one end of the surface of the base (100). The wire feeder (400) and the winding forming module (700) are arranged opposite to the two ends of the transverse shift guide rail (110). The wire feeder (400) is used to transport a single winding copper wire (910). The winding forming module (700) is used to clamp and drive the transformer body to rotate, so as to wind the winding copper wire (910) around the transformer body to complete the winding. An active stranding module (200) includes a drive support component (220) and an outer ring component (230). The drive support component (220) is slidably mounted on a transverse shift guide rail (110), and its top is engaged with an outer ring component (230) that is driven to rotate. A first wire support component (240) is fixed inside the outer ring component (230) for rotating with it to strand the winding wire tail (920). A first wire stop component (250) is movably mounted inside the first wire support component (240) for extending inward to block the winding wire tail (920) to assist in bending. And a driven twisting module (300) that is disposed opposite to the active twisting module (200) and slidably mounted on the transverse shift guide rail (110). The first wire-blocking component (250) includes a main movable baffle (251), a first adjusting plate (252), and an active baffle drive (253). The main movable baffle (251) slides through the first wire-supporting component (240). The first adjusting plate (252) is vertically disposed at the outer end of the main movable baffle (251). The active baffle drive (253) is connected to the first adjusting plate (252) to drive the main movable baffle (251) to extend inward to the top of the winding wire tail (920) to form a top limit. It cooperates with the wire end traction module to pull the winding wire tail (920) and alternately blocks the winding wire tail (920) with the driven twisting module (300) to realize the winding wire tail (920) bend into an S-shape.

2. The multi-fold stranding machine for the wire tail according to claim 1, characterized in that: The drive support component (220) includes a support column (221), a base (222), and a drive gear (223). The support column (221) is slidably mounted on the transverse shift guide rail (110). The base (222) is located at the top of the support column (221). The drive gear (223) is installed inside the base (222) and meshes with the bottom of the outer ring component (230). The outer ring component (230) includes a toothed ring (231) and a gate toothed plate (232). The toothed ring (231) is meshed and installed on the top of the drive gear (223) to drive the first wire support component (240) to rotate. The gate toothed plate (232) is rotatably installed at the wire routing gap (234) inside the toothed ring (231). The gate toothed plate (232) is used to close the wire routing gap (234) to switch between the threading and stranding positions.

3. The multi-fold stranding machine for the wire tail according to claim 1 or 2, characterized in that: The first wire support component (240) includes a clamping base (242), a first opening and closing guide rail (243), and an active clamping claw plate (244). The clamping base (242) is fixed to the inner wall of the toothed ring (231) by a fixing rod (241). The first opening and closing guide rail (243) is provided on the surface of the clamping base (242). The active clamping claw plate (244) is slidably installed on the first opening and closing guide rail (243) for clamping the winding wire tail (920) and making it rotate synchronously with the toothed ring (231). The main movable baffle (251) slides through the active gripper plate (244), and the active baffle drive (253) is mounted on the active gripper plate (244).

4. The multi-fold stranding machine for the wire tail according to claim 1, characterized in that: The driven stranding module (300) includes a driven slide (310), a second wire support component (320), and a second wire stop component (330). The driven slide (310) is slidably mounted on the transverse shift guide rail (110). The top of the driven slide (310) is provided with a second wire support component (320) for supporting the wire tail. The second wire stop component (330) is movably mounted inside the second wire support component (320) for extending inward to block the winding wire tail (920) to assist in bending. The second wire support component (320) is located near the winding forming module (700) and is equipped with a heating component (340) for heat-shrinking and fixing the positioning sleeve (800) fitted onto the winding wire tail (920).

5. The multi-fold stranding machine for the wire tail according to claim 4, characterized in that: The second wire support component (320) includes a lifting drive (321), a driven clamping base (322), and a driven clamping claw plate (324). The lifting drive (321) is mounted on the top of the driven slide (310), the driven clamping base (322) is located at the top of the lifting drive (321), and the driven clamping claw plate (324) is slidably mounted on the driven clamping base (322) for clamping the winding wire tail (920) or the positioning sleeve (800). The second wire-blocking component (330) includes a movable baffle (331) and a driven baffle drive (333). The movable baffle (331) slides through the driven clamping claw plate (324). The driven baffle drive (333) is mounted on the driven clamping claw plate (324) and connected to the movable baffle (331) to drive the movable baffle (331) to extend inside to above the winding wire tail (920) to form a top limit. The heating component (340) includes a hot air blower (342) mounted on the driven clamping base (322) and an air guide shroud (343) located at the air outlet of the hot air blower (342).

6. The multi-fold stranding machine for the wire tail according to claim 1, characterized in that: It also includes a wire end pulling module (500), which includes a clamping transverse guide rail (510) arranged parallel above the transverse shift guide rail (110), and two grippers that can move horizontally along the clamping transverse guide rail (510) and rise and fall independently. The two grippers are used to clamp and pull the wire end or the wire tail (920) of the winding copper wire (910) together or individually.

7. The multi-fold stranding machine for the wire tail according to claim 1, characterized in that: The winding forming module (700) includes a working plate (710), an inner support chuck (730) for clamping and driving the transformer body to rotate, and a pressing edge component (740) movably disposed next to the inner support chuck (730). The working plate (710) is fixedly installed on the other end of the surface of the base (100). The pressing component (740) includes a winding pressing roller transverse guide rail (741), a lifting guide rail (742), and a winding pressing roller (743). The winding pressing roller transverse guide rail (741) is located on the surface of the working plate (710). The lifting guide rail (742) is slidably installed on the winding pressing roller transverse guide rail (741). The winding pressing roller (743) is slidably installed on the side wall of the lifting guide rail (742) for pressing the winding copper wire (910) down and adhering it to the surface of the transformer body.

8. The multi-fold stranding machine for the wire tail according to claim 1, characterized in that: It also includes an automatic sleeve module (600), which includes a receiving seat (621), a tube feeding roller group (630), a cutting component (640), a take-up reel (650), and a positioning frame (660). The positioning frame (660) is located between the driven stranding module (300) and the winding forming module (700) and is fixedly installed on the base (100). The receiving seat (621) is located on one side of the positioning frame (660) and is used to receive the slit positioning sleeve (800). The tube feeding roller group (630) is located at the inner end of the positioning frame (660) and is used to clamp and convey the raw material tube. The cutting component (640) is installed on the output side of the tube feeding roller group (630) and is used to cut the raw material tube into positioning sleeves (800). The take-up reel (650) is installed at the outer end of the positioning frame (660) and is used to release the raw material tube wound on it.

9. The multi-fold stranding machine for the wire tail according to claim 8, characterized in that: The cutting component (640) includes a module mounting bracket (641), a horizontal movable plate (643), a lifting cutter plate (645), a main cutter (646), a secondary cutter (647), and a mating plate (648). The module mounting bracket (641) is fixedly installed on the base (100). The horizontal movable plate (643) is horizontally slidably installed inside the module mounting bracket (641). The lifting cutter plate (645) is slidably installed at the bottom of the horizontal movable plate (643). The main cutter (646) and the secondary cutter (647) are both installed on the bottom surface of the lifting cutter plate (645) and are arranged parallel to each other. The mating plate (648) is located below the lifting cutter plate (645) and is used to cooperate with the main cutter (646) and the secondary cutter (647) to cut the raw material tube to make a positioning sleeve (800).

10. The multi-fold stranding machine for the wire tail according to claim 9, characterized in that: The positioning sleeve (800) has symmetrically arranged cards (810) on its side, and each set of cards (810) has a pin slot (811) in the middle for positioning and engaging with the transformer pin.

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