Anti-winding wireless slip ring for tape wrapping machine

Abstract

This utility model discloses an anti-tangle wireless slip ring for a tape wrapping machine, relating to the technical field of slip ring equipment. In this utility model, a first slip ring, a second slip ring, a wireless circuit, and a power supply step-down circuit are configured. The first slip ring is fixed to the inner wall of the tape wrapping machine's chassis, and the second slip ring is fixed to the main shaft of the tape wrapping machine. The first and second slip rings are arranged in parallel, ensuring that they are completely non-contacting in their structural design, belonging to two independent units. Therefore, during power transmission, the first and second slip rings will not come into contact or rub against each other, and there will be no wear between them. Consequently, there is no lifespan limitation due to friction. As long as the circuit components are not damaged, the first and second slip rings can be used normally without disassembly or replacement, effectively extending the service life of the electric slip rings on the tape wrapping machine's main shaft.

Description

Technical Field

[0001] This utility model relates to the field of slip ring equipment technology, specifically to a wireless slip ring for use in a wrapping machine to prevent tangling. Background Technology

[0002] An electric slip ring is an electrical component used in rotating equipment to achieve continuous transmission of power and signals. It is also known as a slip ring, current collector ring, or rotary joint. The core structure of an electric slip ring consists of a rotor (rotating end) and a stator (fixed end). It forms a conductive path through elastic contact or rolling overlap, solving the problem of wires tangling during rotation.

[0003] When used in a tape wrapping machine, the electric slip ring is mounted on the machine's shaft. Because the slip ring is designed with an inner and outer layer structure, the inner layer rotates while the outer layer does not, and they are connected by rotating carbon brushes to ensure current flow. However, this inner and outer layer design introduces friction during use, resulting in a limited lifespan. After reaching its limit, it needs to be replaced. Since it is mounted on the main shaft, replacement requires removing all equipment from the shaft, making the operation extremely inconvenient.

[0004] For example, the aforementioned problem exists in patent (CN222980222U); it describes a "high-speed cable wrapping machine including a chassis, main shaft, slip ring, pulley, bearing, large bevel gear, small bevel gear, driving gear, driven gear, feed roller, mounting frame, sliding wheel, photoelectric sensor, and wrapping head. The chassis is used for mounting and fixing the various components, the slip ring is used for storing the photoelectric sensor wire assembly, the pulley is used for power transmission, the bearing is used for load bearing and support, the large and small bevel gears are used for power transmission, the driving and driven gears are used for the rotation of the feed roller, and the feed roller is used for the conveying and guiding of the wire." The mounting bracket is used to install and fix the wire feeding roller, photoelectric sensor and wrapping head. The sliding wheel is used for wire feeding. The photoelectric sensor is used to identify whether the wire is broken. The wrapping head is used for wrapping the tape. The photoelectric sensor identifies whether the wire is broken, thereby controlling whether the machine operates. The conventional double-layer design of the electric slip ring is used. The rotating end of the electric slip ring is fixedly installed on the main shaft. When replacing the electric slip ring, the main shaft needs to be removed from the machine box. Then, other components on the main shaft located on the outer wall of the electric slip ring can be removed before the electric slip ring can be disassembled. The operation is extremely inconvenient.

[0005] To address the aforementioned problem that the replacement of the slip ring requires removing all the equipment on the shaft, which is extremely inconvenient, we propose an anti-tangling wireless slip ring for tape wrapping machines. Utility Model Content

[0006] The purpose of this invention is to provide an anti-tangling wireless slip ring for a tape-making machine to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A wireless slip ring for use in a tape wrapping machine to prevent tangling includes a first slip ring, a second slip ring, a wireless circuit, and a power supply step-down circuit. The first slip ring and the second slip ring are arranged in parallel, and the first slip ring is fixedly connected to the inner wall of the tape wrapping machine housing, while the second slip ring is fixedly connected to the main shaft of the tape wrapping machine. The wireless circuit includes a transmitter circuit and a receiver circuit. The transmitter circuit is located inside a first slip ring, and the receiver circuit is located inside a second slip ring. The receiver circuit is electrically connected to the power supply step-down circuit. The transmitting circuit includes a wireless charging chip IC1 and an amplifier IC2, and the receiving circuit includes a wireless charging receiver chip IC3.

[0008] Furthermore, the first slip ring has a snap-fit ​​first end cap on one side of its outer wall, a first mounting groove matching the first end cap on its inner wall, and a first placement groove matching the transmitter circuit on the inner side of the first mounting groove.

[0009] Furthermore, the inner wall of the first slip ring is provided with a lead wire slot on one side of the first placement groove, and the outer wall of the first slip ring is provided with a first through groove on the outside of the lead wire slot.

[0010] Furthermore, a second end cap is provided on one side of the outer wall of the second slip ring, and a second mounting groove matching the second end cap is provided on the inner wall surface of the second slip ring. A second placement groove matching the receiving circuit is provided inside the second mounting groove of the second slip ring.

[0011] Furthermore, the inner wall of the second slip ring is provided with a fixing sleeve, which is fixedly connected to the main shaft of the wrapping machine. One end of the fixing sleeve extends to the outside of the second slip ring, and a second through groove is provided on the surface of the fixing sleeve.

[0012] Furthermore, the second end cap is connected to the second slip ring via several connectors.

[0013] Furthermore, the connector includes a frustum-shaped sleeve and a support rod. The outer wall of the frustum-shaped sleeve is fixedly connected to the second end cap. The support rod is threaded onto the inner side of the frustum-shaped sleeve. The inner wall of the second slip ring and the surface of the circuit board of the receiving end circuit are respectively provided with limiting sleeves that match the support rod.

[0014] Furthermore, one end of the outer wall of the support rod extends through the second end cover to the outside of the second end cover and is provided with an adjustment disc. The other end of the outer wall of the support rod is provided with symmetrical limit blocks on both sides. The inner wall of the limit sleeve of the inner wall of the second slip ring is provided with a guide groove that matches the limit block. The inner wall of the limit sleeve is provided with an arc-shaped limit groove at one end of the guide groove.

[0015] Furthermore, the 6-pin interface of the wireless charging chip IC1, the 1-pin interface of the amplifier IC2, the 2-pin interface of the amplifier IC2, the inductor L1, the resistor R2, the collector of the transistor Q1, the emitter of the transistor Q1, the resistor R3, and the 1-pin interface of the wireless charging chip IC1 are connected in series. A capacitor C5 is connected in parallel to the outside of the inductor L1, and the 3rd interface of the amplifier IC2 and the 6th interface of the wireless charging chip IC1 are grounded respectively. The sensor L1 and resistor R2 are connected to the interface 1 of the connector J1. The interface 2 of the connector J1 is grounded. The resistor R2 and the interface 1 of the connector J1 are connected to the external resistor R1. The resistor R1 is connected to the external diode D1. The diode D1 is grounded. A capacitor C1 is connected in parallel outside the diode D1. The base of the transistor Q1 is electrically connected. The resistor R1 and the diode D1 are connected to the external resistor R1.

[0016] Furthermore, an external capacitor C2 is connected between the inductor L1 and the resistor R2, and the second interface of the wireless charging chip IC1 is electrically connected between the resistor R3 and the first interface of the wireless charging chip IC1 through the resistor R4. The third interface of the wireless charging chip IC1 is electrically connected between the resistor R3 and the first interface of the wireless charging chip IC1 through the capacitor C3. The 8th interface of the wireless charging chip IC1 is electrically connected between the emitter of transistor Q1 and resistor R3. An external capacitor C4 and resistor R5 are connected between the 8th interface of the wireless charging chip IC1 and the emitter of transistor Q1. The capacitor C4 is grounded, and the resistor R5 is electrically connected to the 7th interface of the wireless charging chip IC1.

[0017] Furthermore, the interface 1 of the wireless charging receiver chip IC3, the drain of the transistor Q2, the gate of the transistor Q2, and the interface 8 of the wireless charging receiver chip IC3 are connected in series. The source of the transistor is electrically connected to interface 7 of the wireless charging receiver chip IC3, and a diode D3, an inductor L3 and a capacitor C8 are externally connected between the source of the transistor and interface 7 of the wireless charging receiver chip IC3. The inductor L3 is connected to the 24V terminal of the external power supply step-down circuit. The capacitor C8 is electrically connected to interface 6 of the wireless charging receiver chip IC3. The interface 5 of the wireless charging receiver chip IC3 is electrically connected between the inductor L3 and the 24V terminal of the power supply step-down circuit. An external capacitor C9 is connected between the interface 5 of the wireless charging receiver chip IC3 and the 24V terminal of the power supply step-down circuit. The capacitor C9 and the interface 3 of the wireless charging receiver chip IC3 are grounded respectively.

[0018] Furthermore, diodes D4, D5, and D6 are connected in parallel outside diode D3, and diodes D4, D5, and D6 are connected in parallel with each other; The 4th interface of the wireless charging receiver chip IC3 is electrically connected to the 5th interface of the wireless charging receiver chip IC3 through resistor R7. An external resistor R8 is connected between the 4th interface of the wireless charging receiver chip IC3 and resistor R7, and resistor R8 is grounded.

[0019] Furthermore, the wireless charging receiver chip IC3's interface 1, resistor R6, rectifier diode D2, inductor L2, capacitor C7, and wireless charging receiver chip IC3's interface 2 are connected in series, and the wireless charging receiver chip IC3's interface 2 is electrically connected to the wireless charging receiver chip IC3's interface 1. The inductor L2 is connected in parallel with capacitor C6, and the connection between the inductor L2 and capacitor C7 is grounded.

[0020] Furthermore, the power supply step-down circuit includes a step-down chip U7, with interface 1 of the step-down chip U7 connected to the BOOT1 terminal, interface 4 of the step-down chip U7 connected to the VSENSE1 terminal, interface 7 of the step-down chip U7 connected to the VIN1 terminal, and interface 8 of the step-down chip U7 connected to the PH1 terminal. The BOOT1 terminal, capacitor C13, inductor L5, capacitor C14, and diode U8 are connected in series. Diode U8 and PH1 are electrically connected between capacitor C13 and inductor L5, respectively. Capacitors C15, C16, C17, and C19 are connected in parallel outside capacitor C14. Capacitors C15, C16, C17, and C19 are connected in parallel with each other. The VOUT1 terminal is externally connected between capacitor C14 and inductor L5. The connection between capacitor C14 and diode U8 is grounded.

[0021] Furthermore, the VIN1 terminal is connected to a 24V terminal, the VOUT1 terminal is connected to a +5V terminal, the 24V terminal is connected in series with capacitor C11, capacitor C11 is grounded, capacitor C12 is connected in parallel outside capacitor C11, and the VOUT1 terminal, capacitor R14 and resistor R15 are connected in series in sequence, resistor R15 is grounded. The 24V terminal, resistor R17, and LED are connected in series, and the LED is grounded.

[0022] Compared with the prior art, the beneficial effects achieved by this utility model are: In this invention, by setting a first slip ring, a second slip ring, a wireless circuit, and a power supply step-down circuit, the first slip ring is fixed to the inner wall of the tape-making machine's chassis, and the second slip ring is fixed to the main shaft of the tape-making machine. The first and second slip rings are arranged in parallel, so that the first and second slip rings are completely non-contacting in structural design and belong to two independent units. Therefore, during power transmission, the first and second slip rings will not come into contact or rub against each other, and there will be no wear between them. Thus, there is no lifespan limitation due to friction. As long as the circuit components are not damaged, the first and second slip rings can be used normally without disassembly or replacement, which can effectively extend the service life of the electric slip rings on the tape-making machine's main shaft. The receiving circuit and the transmitting circuit rotate relative to each other, using the principle of magnetoelectricity to realize wireless power transmission, ensuring normal power transmission between the first and second slip rings. The wireless circuit then supplies normal power to the electrical components on the tape-making machine's main shaft through the power supply step-down circuit. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the first slip ring of this utility model; Figure 3 This is a schematic diagram of the structure of the first slip ring of this utility model with the first end cap removed; Figure 4 This is a schematic diagram of the structure of the second slip ring of this utility model; Figure 5 This is a schematic diagram of the structure of the second slip ring of this utility model with the second end cap removed; Figure 6 This is a structural schematic diagram of the connector of this utility model; Figure 7 This is a structural schematic diagram of the connector of this utility model from another angle; Figure 8 This is a schematic diagram of the structure of the limiting sleeve of this utility model; Figure 9 This is a circuit diagram of the wireless circuit of this utility model; Figure 10 This is a circuit diagram of the power supply circuit of this utility model; Figure 11 This is a circuit diagram of the Star Lightning Circuit of this utility model; In the diagram: 1. First slip ring; 101. First end cap; 102. First mounting groove; 103. First placement groove; 104. Lead wire groove; 105. First through groove; 2. Second slip ring; 201. Second end cap; 202. Second mounting groove; 203. Second placement groove; 204. Fixing sleeve; 205. Second through groove; 206. Connector; 207. Frustum-shaped sleeve; 208. Support rod; 209. Limiting sleeve; 210. Adjusting disc; 211. Limiting block; 212. Guide groove; 213. Arc-shaped limiting groove; 3. Wireless circuit; 301. Transmitter circuit; 302. Receiver circuit; 4. Power supply step-down circuit. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0025] like Figures 1-10 As shown, this utility model provides a technical solution: a wireless slip ring for a tape wrapping machine to prevent tangling, comprising a first slip ring 1, a second slip ring 2, a wireless circuit 3, and a power supply step-down circuit 4. The first slip ring 1 and the second slip ring 2 are arranged in parallel, and the first slip ring 1 is fixedly connected to the inner wall of the tape wrapping machine housing, while the second slip ring 2 is fixedly connected to the main shaft of the tape wrapping machine. The wireless circuit 3 includes a transmitting circuit 301 and a receiving circuit 302. The transmitting circuit 301 is located inside the first slip ring 1, and the receiving circuit 302 is located inside the second slip ring 2. The receiving circuit 302 is electrically connected to the power supply step-down circuit 4. The transmitting circuit 301 includes a wireless charging chip IC1 and an amplifier IC2, and the receiving circuit 302 includes a wireless charging receiving chip IC3. In one embodiment, the first slip ring 1 has a snap-fit ​​first end cap 101 on one side of its outer wall, and a first mounting groove 102 matching the first end cap 101 on its inner wall. The first slip ring 1 has a first placement groove 103 matching the transmitter circuit 301 on the inner side of the first mounting groove 102. The first end cap 101 performs snap-fit ​​encapsulation of the circuit board on the outer side of the first slip ring 1. The first mounting groove 102 provides installation space for the first end cap 101, and the first placement groove 103 provides installation and placement space for the transmitter circuit 301, ensuring the stability of the transmitter circuit 301. The first slip ring 1 has a lead wire slot 104 on one side of its inner wall and a first through groove 105 on the outer side of its outer wall. The lead wire slot 104 provides a slot for outward lead wires to the transmitter circuit 301 on one side of the first placement groove 103. The first through groove 105 is used to connect the external lines of the transmitter circuit 301 to the power supply device.

[0026] In one embodiment, a second end cap 201 is provided on one side of the outer wall of the second slip ring 2, and a second mounting groove 202 matching the second end cap 201 is formed on the inner wall surface of the second slip ring 2. A second placement groove 203 matching the receiving circuit 302 is provided inside the second mounting groove 202 of the second slip ring 2. The second end cap 201 performs encapsulation on the second slip ring 2, the second mounting groove 202 provides mounting space for the second end cap 201, and the second placement groove 203 provides mounting space for the receiving circuit 302. To ensure the stability of the receiving circuit 302; the inner wall of the second slip ring 2 is provided with a fixing sleeve 204, which is fixedly connected to the main shaft of the tape machine. One end of the fixing sleeve 204 extends to the outside of the second slip ring 2, and a second through groove 205 is opened on the surface of the fixing sleeve 204. The fixing sleeve 204 is used to fix the second slip ring 2 on the main shaft of the tape machine. The second through groove 205 provides lead-out space for the receiving circuit 302, ensuring that the receiving circuit 302 can supply power to the rotating components on the main shaft of the tape machine.

[0027] In one embodiment, the second end cap 201 is connected to the second slip ring 2 via a plurality of connectors 206, and the second end cap 201 and the second slip ring 2 are fixed by the connectors 206. The connectors 206 can be screws.

[0028] In one embodiment, the connector 206 includes a frustum-shaped sleeve 207 and a support rod 208. The outer wall of the frustum-shaped sleeve 207 is fixedly connected to the second end cap 201. The support rod 208 is threaded onto the inner side of the frustum-shaped sleeve 207. The inner wall of the second slip ring 2 and the surface of the circuit board of the receiving circuit 302 are respectively provided with limiting sleeves 209 that match the support rod 208. The connector 206 is designed as a combination of the frustum-shaped sleeve 207 and the support rod 208. In use, the frustum-shaped sleeve 207 of the connector 206 passes through the two limiting sleeves 209, and then... The support rod 208 can be used to limit the connection between the support rod 208 and the limiting sleeve 209, which can effectively ensure the quick connection between the second end cover 201 and the second slip ring 2. One end of the outer wall of the support rod 208 extends through the second end cover 201 and is provided with an adjusting plate 210 on the outside of the second end cover 201. The other end of the outer wall of the support rod 208 is provided with limiting blocks 211 symmetrically on both sides. The inner wall of the limiting sleeve 209 on the inner wall of the second slip ring 2 is provided with a guide groove 212 that matches the limiting block 211. The inner wall of the limiting sleeve 209 is provided with an arc-shaped limiting groove 213 at one end of the guide groove 212. The adjustment disc 210 is used for quick adjustment of the support rod 208. Rotation of the adjustment disc 210 allows for rotational adjustment and linear displacement of the support rod 208. In use, when connecting the support rod 208 to the limiting sleeve 209 on the inner wall of the second slip ring 2, the limiting block 211 at the end of the support rod 208 is aligned with the guide groove 212. Then, the support rod 208 is pushed inward, and the limiting block 211 slides along the guide groove 212. When the limiting block 211 moves to the inner side of the arc-shaped limiting groove 213, the support rod 208 is rotated, causing the limiting block 211 to move along the arc-shaped limiting groove 213. This causes the limiting block 211 to be misaligned with the guide groove 212, thereby limiting and locking the connector 206 and the second slip ring 2. The operation is convenient and quick. When disassembling the second end cover 201 and the second slip ring 2, the adjusting plate 210 is turned outward. The adjusting plate 210 drives the support rod 208 to turn outward. The support rod 208 drives the limiting block 211 to move along the arc-shaped limiting groove 213 to a position aligned with the guide groove 212. Then, the adjusting plate 210 is pulled outward, and the limiting block 211 slides along the guide groove 212. The second end cover 201 can be directly removed from the second slip ring 2. The operation is convenient and quick.

[0029] Specific working principle: In this invention, a first slip ring 1, a second slip ring 2, a wireless circuit 3, and a power supply step-down circuit 4 are configured. The first slip ring 1 is fixed to the inner wall of the tape wrapping machine's chassis, and the second slip ring 2 is fixed to the main shaft of the tape wrapping machine. The first slip ring 1 and the second slip ring 2 are arranged in parallel. It is necessary to ensure that the distance between the first slip ring 1 and the second slip ring 2 is within a certain reasonable range, so that the first slip ring 1 and the second slip ring 2 do not contact each other. At the same time, it is necessary to ensure that the transmitting end circuit 301 and the receiving end circuit 302 in the wireless circuit 3 can transmit wireless power normally. The first slip ring 1 and the second slip ring 2 are completely non-contacting in structural design and belong to two independent units. Therefore, the first slip ring 1 and the second slip ring 2 will not come into contact or rub during power transmission. Since the first slip ring 1 and the second slip ring 2 will not come into contact or rub, there will be no wear between the first slip ring 1 and the second slip ring 2. Therefore, there will be no life limitation due to friction. As long as the circuit components are not damaged, the first slip ring 1 and the second slip ring 2 can be used normally without disassembly or replacement. This can effectively extend the service life of the electric slip rings on the main shaft of the tape wrapping machine. The transmitting circuit 301 in wireless circuit 3 is arranged inside the first slip ring 1, and the receiving circuit 302 in wireless circuit 3 is arranged inside the second slip ring 2. During use, the main shaft of the tape machine rotates, and the second slip ring 2 rotates with the main shaft of the tape machine. The transmitting circuit 301 in wireless circuit 3 is located inside the first slip ring 1 and does not rotate, while the receiving circuit 302 is inside the second slip ring 2 and rotates with the second slip ring 2. The receiving circuit 302 and the transmitting circuit 301 rotate relative to each other, and wireless power transmission is achieved by utilizing the principle of magnetization to generate electricity, ensuring normal power transmission between the first slip ring 1 and the second slip ring 2. Wireless circuit 3 then supplies normal power to the electrical components on the main shaft of the tape machine through the power supply step-down circuit 4, ensuring that the electrical equipment rotating with the main shaft of the tape machine (such as sensors, counters, etc.) works normally. In addition, the wireless slip ring in this invention can also be used in other application scenarios similar to the electric slip ring for the main shaft of a tape-making machine. Example

[0030] like Figures 9-11 As shown, this utility model provides a technical solution: a wireless slip ring for use in a wrapping machine to prevent tangling, as shown in the figure. Figure 9As shown, the 6th interface of the wireless charging chip IC1, the 1st interface and the 2nd interface of the amplifier IC2, the inductor L1, the resistor R2, the collector and emitter of the transistor Q1, the resistor R3, and the 1st interface of the wireless charging chip IC1 are connected in series. A capacitor C5 is connected in parallel outside the inductor L1. The 3rd interface of the amplifier IC2 and the 6th interface of the wireless charging chip IC1 are grounded. The 1st interface of the connector J1 is connected between the inductor L1 and the resistor R2. The 2nd interface of the connector J1 is grounded. An external resistor R1 is connected between the resistor R2 and the 1st interface of the connector J1. A diode D1 is connected to the resistor R1. The diode D1 is grounded. A capacitor C1 is connected in parallel outside the diode D1. The base of the transistor Q1 is electrically connected. The resistor R1 and the diode D1 are connected in parallel.

[0031] In one embodiment, an external capacitor C2 is connected between the inductor L1 and the resistor R2; the 2nd interface of the wireless charging chip IC1 is electrically connected between the resistor R3 and the 1st interface of the wireless charging chip IC1 through the resistor R4; the 3rd interface of the wireless charging chip IC1 is electrically connected between the resistor R3 and the 1st interface of the wireless charging chip IC1 through the capacitor C3; the 8th interface of the wireless charging chip IC1 is electrically connected between the emitter of the transistor Q1 and the resistor R3; an external capacitor C4 and a resistor R5 are connected between the 8th interface of the wireless charging chip IC1 and the emitter of the transistor Q1; the capacitor C4 is grounded; and the resistor R5 is electrically connected to the 7th interface of the wireless charging chip IC1.

[0032] In one embodiment, the 1st interface of the wireless charging receiver chip IC3, the drain of transistor Q2, the gate of transistor Q2, and the 8th interface of the wireless charging receiver chip IC3 are connected in series. The source of the transistor is electrically connected to the 7th interface of the wireless charging receiver chip IC3. A diode D3, an inductor L3, and a capacitor C8 are externally connected between the source of the transistor and the 7th interface of the wireless charging receiver chip IC3. The inductor L3 is externally connected to the 24V terminal of the power supply step-down circuit 4. The capacitor C8 is electrically connected to the 6th interface of the wireless charging receiver chip IC3. The 5th interface of the wireless charging receiver chip IC3 is electrically connected between the inductor L3 and the 24V terminal of the power supply step-down circuit 4. A capacitor C9 is externally connected between the 5th interface of the wireless charging receiver chip IC3 and the 24V terminal of the power supply step-down circuit 4. The capacitor C9 and the 3rd interface of the wireless charging receiver chip IC3 are connected to each other. Each diode is grounded. Diodes D4, D5, and D6 are connected in parallel to each other outside diode D3. Interface 4 of the wireless charging receiver chip IC3 is electrically connected to interface 5 of the wireless charging receiver chip IC3 via resistor R7. An external resistor R8 is connected between interface 4 of the wireless charging receiver chip IC3 and resistor R7, and resistor R8 is grounded. Interface 1 of the wireless charging receiver chip IC3, resistor R6, rectifier diode D2, inductor L2, capacitor C7, and interface 2 of the wireless charging receiver chip IC3 are connected in series. Interface 2 of the wireless charging receiver chip IC3 is electrically connected to interface 1 of the wireless charging receiver chip IC3. Capacitor C6 is connected in parallel to the outside of inductor L2, and the connection between inductor L2 and capacitor C7 is grounded. In one embodiment, such as Figure 10As shown, the power supply step-down circuit 4 includes a step-down chip U7. Interface 1 of the step-down chip U7 is externally connected to the BOOT1 terminal, interface 4 of the step-down chip U7 is externally connected to the VSENSE1 terminal, interface 7 of the step-down chip U7 is externally connected to the VIN1 terminal, and interface 8 of the step-down chip U7 is externally connected to the PH1 terminal. The BOOT1 terminal, capacitor C13, inductor L5, capacitor C14, and diode U8 are connected in series. Diode U8 and PH1 are electrically connected between capacitor C13 and inductor L5, respectively. Capacitors C15, C16, C17, and C19 are connected in parallel outside capacitor C14. 16. Capacitors C17 and C19 are connected in parallel. The connection between capacitor C14 and inductor L5 is externally connected to terminal VOUT1. The connection between capacitor C14 and diode U8 is grounded. Terminal VIN1 is externally connected to a 24V terminal, and terminal VOUT1 is externally connected to a +5V terminal. The 24V terminal is connected in series with capacitor C11, which is grounded. A capacitor C12 is connected in parallel outside capacitor C11. Terminal VOUT1, capacitor R14, and resistor R15 are connected in series, with resistor R15 grounded. The 24V terminal, resistor R17, and LED are connected in series, with the LED grounded. In one embodiment, a star-light circuit module is also included. The star-light circuit is primarily used for the transmission of control signals between the main control equipment of the tape recorder and the wireless circuit 3, enabling the wireless circuit 3 to operate. Figure 11 As shown, StarLink adopts a dual-mode architecture: SLE (StarLink Low Energy) mode: similar to Bluetooth BLE, ultra-low power consumption (μA level), used for sensors and wearable devices; SLB (StarLink Basic) mode: similar to Wi-Fi, high performance (peak rate >900Mbps), used for AR / VR and industrial control; the same chip supports dynamic switching between the two modes; Detailed Explanation of Key Circuit Modules Power Management: Input: 24V industrial voltage (refer to the step-down solution above); Conversion: Converted to 3.3V via a Buck circuit (such as TPS54332) to power the StarSpark chip and MCU; RF front end: Antenna: PCB serpentine antenna / external ceramic antenna (2.4GHz band), matching network: π-type LC network (typical value: L=2.2nH, C=1pF×2), ensuring impedance of 50Ω, ESD protection: TVS diode (such as PESD2V8L1) close to the antenna feed point; 3. Control Interface: SPI Communication: High-speed data transmission between the StarSpark chip and the MCU (clock frequency ≤ 80MHz); GPIO Control: Used for wake-up, mode switching (SLE / SLB); Interrupt Signal (INT): Event-driven design to reduce MCU polling power consumption; 4. Clock circuit: Main clock: 40MHz crystal oscillator (load capacitor 8pF, accuracy ±10ppm), backup clock: built-in RC oscillator (for low-power sleep mode).

[0033] Specific working principle: The circuit in this utility model. In wireless circuit 3: the wireless charging chip IC1 and amplifier IC2 in the transmitter circuit 301 work together to form the transmitter of wireless power transmission, and the wireless charging receiver chip IC3 in the receiver circuit 302 is used to receive the signal from the transmitter and realize the wireless power transmission operation by using the principle of magnetism to generate electricity. Transmitter: A high-frequency carrier signal is generated by an oscillation circuit, and the modulation circuit (AM / FM / digital modulation) loads the information signal onto the carrier. After being amplified by a power amplifier (PA), the signal is radiated by the antenna. Receiver: The antenna in the wireless charging receiver chip IC3 receives the signal, which is then amplified by a low-noise amplifier (LNA) and demodulated to restore the original information. Resistors (R): used for current limiting, voltage division, and biasing transistors; Capacitor C5 and inductor L1 work together to form a filtering, oscillation, or impedance matching network; Transistors / ICs: used for amplifying, switching, or modulating signals; Antennas: used for converting electromagnetic waves into electrical signals; Amplifier IC2: used to boost signal strength; Mixers: used to convert signal frequencies to intermediate frequencies (e.g., in superheterodyne receivers); Filters: used to remove interference frequencies (e.g., bandpass filters). In the power supply step-down circuit 4: the core chip function, the step-down chip U7 model: TPS5430DDAR (TI's synchronous step-down converter), input range: 4.5V to 40V (supports 24V input), output: fixed or adjustable (5V output here), features: integrated upper and lower MOSFETs, high switching frequency (>1MHz), high efficiency, built-in protection (overcurrent / overheating). Capacitor C11 is a 100nF ceramic capacitor: used to filter out high-frequency noise from the 24V input and prevent interference with chip operation; Inductor L2 is a 22μH power inductor: used as an energy storage element, it stores energy when the switching transistor is turned on and releases energy to the output terminal when it is turned off, thereby achieving voltage reduction; Capacitors C15 and C19 are 100nF ceramic capacitors: they filter out high-frequency ripple at the output and provide a stable 5V voltage; Capacitor C13 serves as a 100nF BOOT capacitor: it provides a drive voltage (typically higher than VIN) for the internal upper MOSFET, ensuring that the switching transistor is fully turned on. Resistor R17 (10kΩ) + hidden resistor (not labeled) serve as a feedback network: the output voltage is detected through the VSENSE pin (4-interface) of the buck chip U7, and the duty cycle is dynamically adjusted to stabilize the 5V output; The ENA pin (interface 5) of the buck converter chip U7 controls the chip's start and stop via an external signal (the logic is not marked in the diagram, and it may be directly enabled by default). The LED + resistor R17 (10kΩ) form an LED indicator circuit: the LED lights up when the output is 5V, serving as a power status indicator; Working principle 1. Switching phase: When the upper MOSFET is turned on: Current path: "VIN → internal upper MOSFET → L5 → output capacitor / load → GND", energy is stored in the inductor; When the upper MOSFET is turned off: the inductor current freewheels, the path is: "GND → internal lower MOSFET (or external diode) → L5 → output capacitor / load", releasing energy; 2. PWM Control: The buck converter chip U7 adjusts the switching duty cycle (D) based on the VSENSE feedback voltage to achieve voltage reduction; 3. Synchronous rectification: The buck converter chip U7 integrates a lower MOSFET to replace the freewheeling diode, reducing conduction losses and improving efficiency (>90%). Key Design Considerations Inductor selection: 22μH inductor must meet the requirement that rated current > output current + 30% ripple current (e.g., if the output is 2A, the inductor saturation current must be >2.6A). Layout requirements: The input capacitor (C11) is placed close to the chip's VIN and GND pins to reduce the loop area; the BOOT capacitor (C13) is placed close to the BOOT and PH pins; the power ground (PGND) is wired separately from the signal ground and connected at a single point.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A wireless slip ring for preventing tangling in a tape-making machine, comprising a first slip ring (1), a second slip ring (2), a wireless circuit (3), and a power supply step-down circuit (4), characterized in that: The first slip ring (1) and the second slip ring (2) are arranged in parallel, and the first slip ring (1) is fixedly connected to the inner wall of the tape wrapping machine housing, and the second slip ring (2) is fixedly connected to the main shaft of the tape wrapping machine. The wireless circuit (3) includes a transmitter circuit (301) and a receiver circuit (302). The transmitter circuit (301) is located inside the first slip ring (1), and the receiver circuit (302) is located inside the second slip ring (2). The receiver circuit (302) is electrically connected to the power supply step-down circuit (4). The transmitting circuit (301) includes a wireless charging chip IC1 and an amplifier IC2, and the receiving circuit (302) includes a wireless charging receiver chip IC3.

2. The wireless slip ring for anti-tangle use in a wrapping machine according to claim 1, characterized in that: The first slip ring (1) has a first end cap (101) on one side of its outer wall, and a first mounting groove (102) matching the first end cap (101) on its inner wall. The first slip ring (1) has a first placement groove (103) matching the transmitter circuit (301) inside the first mounting groove (102).

3. The wireless slip ring for anti-tangle use in a wrapping machine according to claim 2, characterized in that: The inner wall of the first slip ring (1) is provided with a lead wire slot (104) on one side of the first placement slot (103), and the outer wall of the first slip ring (1) is provided with a first through slot (105) on the outside of the lead wire slot (104).

4. The wireless slip ring for anti-tangle use in a tape-making machine according to claim 1, characterized in that: The second slip ring (2) has a second end cap (201) on one side of its outer wall, and a second mounting groove (202) matching the second end cap (201) is opened on the inner wall surface of the second slip ring (2). The second slip ring (2) has a second placement groove (203) matching the receiving circuit (302) inside the second mounting groove (202).

5. The wireless slip ring for anti-tangle use in a wrapping machine according to claim 4, characterized in that: The inner wall of the second slip ring (2) is provided with a fixing sleeve (204), the fixing sleeve (204) is fixedly connected to the main shaft of the tape wrapping machine, one end of the fixing sleeve (204) extends to the outside of the second slip ring (2), and a second through groove (205) is opened on the surface of the fixing sleeve (204).

6. The wireless slip ring for anti-tangle use in a wrapping machine according to claim 4, characterized in that: The second end cap (201) is connected to the second slip ring (2) via several connectors (206).

7. The wireless slip ring for anti-tangle use in a wrapping machine according to claim 6, characterized in that: The connector (206) includes a frustum-shaped sleeve (207) and a support rod (208). The outer wall of the frustum-shaped sleeve (207) is fixedly connected to the second end cap (201). The support rod (208) is threaded onto the inner side of the frustum-shaped sleeve (207). The inner wall of the second slip ring (2) and the circuit board surface of the receiving end circuit (302) are respectively provided with limiting sleeves (209) that match the support rod (208).

8. The wireless slip ring for anti-tangle use in a wrapping machine according to claim 7, characterized in that: One end of the outer wall of the support rod (208) extends through the second end cover (201) to the outside of the second end cover (201) and is provided with an adjustment plate (210). The other end of the outer wall of the support rod (208) is provided with symmetrical limit blocks (211). The inner wall of the limit sleeve (209) of the inner wall of the second slip ring (2) is provided with a guide groove (212) that matches the limit block (211). The inner wall of the limit sleeve (209) is provided with an arc-shaped limit groove (213) at one end of the guide groove (212).

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