Straightening device and method for electric core wire of braided electric wire

Abstract

The invention discloses a straightening device and method for a battery core wire of a braided wire, relates to the technical field of wire processing equipment, and aims to solve the problem of difficult separation caused by winding of the battery core wire and a cotton thread after the sheath of the braided wire is cut off. The device comprises a braided wire end disassembling platform, a material stepping transmission table and a straightening assembly, wherein the straightening assembly comprises a fixing assembly and a straightening scrubbing brush assembly; the fixing assembly clamps a thread end through a lower cushion block and an upper pressing block, the scrubbing brush assembly adopts nylon or polyester fiber scrubbing brush, and a winding structure is loosened through reverse rotation of a lower roller and an upper roller. The double working platforms are symmetrically designed, the two ends of the electric wire can be synchronously straightened, and automatic circulation is achieved in cooperation with stepping transmission control. The device can efficiently straighten the battery core wire and the cotton wire, improves the separation effect and the process continuity, and is suitable for batch processing of braided wires of different specifications.

Description

Technical Field

[0001] This invention relates to a device and method for straightening the core wires of braided wires, belonging to the technical field of automatic production equipment for braided wires. Background Technology

[0002] The automatic braided wire end removal equipment is used to remove the wire ends from one or both ends of a complete braided wire. The wire end removal mainly includes processes such as cutting the outer sheath, separating the core wire / cotton thread, and removing the cotton thread.

[0003] This solution involves cutting the outer sheath of the braided wire, then straightening the core wires and cotton threads. Because the core wires and cotton threads in the braided wire material are tightly intertwined, and after cutting the outer sheath in the previous step, some of the intertwined structure remains, directly separating the core wires / cotton threads will not yield satisfactory results. Therefore, the existing technology has shortcomings and needs further improvement and refinement. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of this invention is to provide a device for straightening the core wire of braided wires, so as to solve the problem that the existing process cannot effectively straighten the core wire and cotton thread before disassembly, resulting in poor cotton thread separation effect and insufficient process continuity. According to an embodiment of the present invention, the first embodiment is provided as follows: a device for straightening the core wire of a braided wire, comprising a straightening component disposed on a braided wire end disassembly platform, the straightening component being disposed on a straightening station of the braided wire end disassembly platform, and a material stepping conveyor being disposed on one side of the straightening station, the material stepping conveyor transferring the braided wire to the straightening station via a conveying clamp; The straightening assembly includes a fixing component and a straightening stiff brush assembly. The fixing component clamps and fixes the ends of the braided wires that are transferred to the straightening station, and the straightening stiff brush assembly straightens the core wires and cotton threads of the braided wires.

[0005] Furthermore, the braided wire end disassembly platform includes two opposing work platforms: a first work platform and a second work platform. The straightening station and straightening component on the first work platform are symmetrically arranged with the straightening station and straightening component on the second work platform. The transmission clamps on the first work platform and the second work platform respectively clamp the two ends of a braided wire. The fixing component on the first work platform and the fixing component on the second work platform respectively clamp the end of a braided wire. The straightening stiff brush on the first work platform and the straightening stiff brush on the second work platform respectively straighten the core wire and cotton thread at both ends of a braided wire.

[0006] Furthermore, it also includes a stepper motor control component, which controls a braided wire to be conveyed along the production line direction via the material stepper conveyor of the first working platform and the material stepper conveyor of the second working platform on the braided wire end disassembly platform.

[0007] Furthermore, the material component transfer table transports the straightened braided wire from the straightening station to the next station.

[0008] Furthermore, the fixing component includes a lower pad block disposed below the braided wire at the straightening station and an upper pressure block that can move up and down. The upper pressure block moves downward and clamps and fixes the end of the braided wire at the straightening station.

[0009] Furthermore, the upper surface of the lower pad is provided with at least one anti-slip texture or an anti-slip groove that is adapted to the shape of the braided wire.

[0010] Furthermore, the straightening stiff bristle brush assembly includes a drive motor unit, a first lower roller, a second lower roller, and an upper roller. The surfaces of the first lower roller, the second lower roller, and the upper roller are densely covered with straightening stiff bristles. The distance between the upper roller and the first lower roller, and between the upper roller and the second lower roller, is less than twice the length of the straightening stiff bristles.

[0011] Furthermore, the first and second lower rollers rotate counterclockwise synchronously, while the upper roller rotates clockwise synchronously, or the first and second lower rollers rotate clockwise synchronously, while the upper roller rotates counterclockwise synchronously.

[0012] Furthermore, the straightening bristles are made of nylon or polyester fiber, with a diameter of 0.1mm-0.5mm and a length of 10mm-100mm for a single straightening bristle, and a Shore hardness of 60D-80D.

[0013] According to an embodiment of the present invention, utilizing the wire straightening device for braided wires in the first embodiment of the present invention, a second embodiment is provided as follows: A method for straightening the core wires of a braided electrical wire, comprising the following steps: S10: The braided wire is moved along the production line direction to the straightening station by the transfer clamps on the two material stepping conveyors set in parallel on the first and second work platforms. The corresponding set of transfer clamps on the first and second work platforms is driven by the stepper motor control component to realize the parallel transfer of the braided wire. S20: The fixing component on the straightening station performs a fixing action. The upper pressure block moves downward and cooperates with the lower pad block to clamp and fix the two ends of the braided wire respectively. S30: The straightening stiff bristle assembly is activated. The first and second lower rollers rotate counterclockwise synchronously and the upper roller rotates clockwise synchronously, or the first and second lower rollers rotate clockwise synchronously and the upper roller rotates counterclockwise synchronously. The straightening stiff bristles on the surface comb and straighten the battery core wire and cotton thread. S40: After straightening, the fixing component releases the braided wire, and the material stepping conveyor moves the braided wire to the next station. Repeat steps S10-S30 to straighten the next section of braided wire.

[0014] Compared with the prior art, the unique advantages of the technical solution provided in this application are as follows: By utilizing the relative rotation characteristics of the straightening bristle assembly and the material and size design of the bristles, the tangled structure of the battery core wire and cotton thread can be quickly loosened. It can also straighten bent battery core wires, significantly improving straightening and combing efficiency compared to traditional manual or mechanical methods. The straightening bristles combine rigidity and elasticity, adapting to most braided wire specifications. The bristles can penetrate deep into gaps to straighten all cotton threads, increasing the yield rate of subsequent separation processes to over 99%. The anti-static treatment on the bristle surface prevents dust adsorption, and the 60-80D hardness setting ensures it won't easily collapse during long-term use, extending the assembly's lifespan. The symmetrical dual-operation platform can simultaneously process both ends of the braided wire, and with stepper transmission control, it is compatible with automated production lines, reducing process waiting time. 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] in: Figure 1 This is a schematic diagram of the overall structure of an automatic braided wire end removal device in one embodiment; Figure 2 A partial schematic diagram A of the straightening component in one embodiment; Figure 3 This is a partial schematic diagram B of the straightening component in one embodiment.

[0017] Figure label: 10- Braided wire; 20 - Transfer fixture; 31-First lower roller; 32-Second lower roller; 33-Upper roller; 34-Drive motor assembly; 40 - Lower pad block; 41 - Upper pressure block. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] Example 1 The technical problem addressed in this embodiment is that when disassembling the ends of the braided wire 10, the process is usually carried out manually or with simple jigs and clamps, which is inefficient, slow, and the quality of manual work cannot be guaranteed. The development of fully automated production equipment for the braided wire 10 generally involves steps such as sheath cutting, core wire / cotton thread separation, and cotton thread removal. However, during the process from sheath cutting to core wire / cotton thread separation, the core wire (often made of copper or other metal wires) has a certain degree of flexibility and is usually bent. In the normal structure of the braided wire 10, the three core wires are already intertwined with the cotton thread. If the core wire / cotton thread is separated directly, the intertwined structure remains, making it difficult to achieve a good separation effect, resulting in a high defect rate in the subsequent cotton thread cutting process.

[0020] To address the aforementioned technical problems, this embodiment provides a device for straightening the core wires of a braided wire. This device is part of an automatic wire end removal device for braided wires. Specifically, the device for straightening the core wires of the braided wire 10 includes a straightening assembly mounted on a wire end removal platform, such as... Figure 1 As shown, the straightening component is installed on the straightening station of the braided wire end disassembly platform. A material stepping conveyor is provided on one side of the straightening station. The material stepping conveyor transfers the braided wire 10 to the straightening station through the conveying clamp 20. The straightening component includes a fixing component and a straightening hard brush component. The fixing component clamps and fixes the wire end of the braided wire 10 transferred to the straightening station. The straightening hard brush component straightens the core wire and cotton thread of the braided wire 10.

[0021] In a preferred embodiment, the overall structure of the braided wire 10 core wire straightening device of this embodiment includes a braided wire end disassembly platform, a material stepping conveyor, and a straightening assembly. The disassembly platform is divided into a first working platform and a second working platform arranged symmetrically. The straightening stations, straightening assemblies, and conveying clamps 20 on the two platforms are mirror-distributed, which can simultaneously process the two ends of the braided wire 10.

[0022] Specifically, the straightening component includes a fixing component and a straightening stiff bristle brush component, such as... Figure 2 , Figure 3As shown, the specific structure is as follows: Fixing components: consisting of a lower pad 40 made of wear-resistant rubber and an upper pressure block 41 made of aluminum alloy. The upper surface of the lower pad 40 has two V-shaped anti-slip grooves, each 2mm deep and wide enough to accommodate braided wires 10 with a diameter of 5-10mm. The grooves also feature fine anti-slip textures with a depth of 0.5mm. The upper pressure block 41 is driven by a cylinder to move up and down, with a stroke of 10-50mm. When pressed down, it works with the lower pad 40 to clamp the wire end; the clamping force is adjustable, ranging from 5-20N.

[0023] Straightening stiff bristle brush assembly: includes a drive motor assembly 34, such as a 57 stepper motor with a speed of 50-200 rpm, a first lower roller 31, a second lower roller 32, and an upper roller 33, with a roller diameter of 30 mm and a length of 80 mm. The surfaces of all three rollers are densely covered with straightening stiff bristles.

[0024] Straightening bristle material: Nylon PA66 material is selected, with a single bristle diameter of 0.3mm and a length of 10mm; performance parameters: Leeb hardness 70D, surface is plasma treated to form an antistatic coating, surface resistance <10^9Ω; arrangement method: the bristles are arranged in a spiral shape with a pitch of 5mm and a spacing of 0.8mm between adjacent bristles to ensure coverage of the area where the battery core wire and cotton thread are wrapped.

[0025] Transmission and Control Process: The braided wire end dismantling platform includes two opposing work platforms: a first work platform and a second work platform. The straightening stations and straightening components on the first and second work platforms are symmetrically arranged. Transmission clamps 20 on the first and second work platforms respectively clamp the two ends of a braided wire 10. Fixing components on the first and second work platforms respectively clamp the ends of the braided wire 10. Straightening brushes on the first and second work platforms respectively straighten the core wire and cotton thread at both ends of the braided wire 10. The platform also includes a stepper motor control component, which controls the conveying of the braided wire 10 along the production line direction on the braided wire 10 end dismantling platform via the material stepping conveyor of the first and second work platforms. The material transfer station transports the straightened braided wires from the straightening station to the next station.

[0026] Specifically, the material conveyor uses synchronous clamp drive. The conveyor clamp 20 is a pneumatic gripper with a clamping range of 3-15mm. It is controlled by a Siemens PLC controller in conjunction with a stepper motor, and the transmission accuracy is ±0.5mm. Dual-station collaboration: The conveyor clamps 20 of the first and second working platforms respectively clamp the two ends of the braided wire 10. For example, for a wire with a length of 1m, they are synchronously transferred to the straightening station. After straightening, the conveyor moves the wire to the next separation station at a transmission speed of 50mm / s.

[0027] The beneficial effects of the technical solution provided in this application are as follows: Through the relative rotation characteristics of the straightening bristle assembly and the material and size design of the straightening bristles, the entanglement structure of the battery core wire and cotton thread can be quickly loosened, and bent battery core wires can be straightened. The straightening and combing efficiency is significantly improved compared to traditional manual or mechanical methods. The straightening bristles combine rigidity and elasticity, are compatible with most braided wire specifications, and can penetrate deep into gaps to straighten all cotton threads, increasing the yield rate of subsequent separation processes to over 99%. The anti-static treatment on the bristle surface prevents dust adsorption, and the 60-80D hardness parameter setting ensures that it is not easily flattened during long-term use, extending the component's service life. The symmetrical dual-operation platform can simultaneously process both ends of the braided wire 10, and with stepper transmission control, it is compatible with automated production lines, reducing process waiting time.

[0028] Example 2 This embodiment provides a method for straightening the core wires of a braided electrical wire, including the following steps: S10: The braided wire 10 is moved along the production line direction to the straightening station by the transfer clamps 20 on the two material stepping conveyors set in parallel on the first and second work platforms. The corresponding set of transfer clamps on the first and second work platforms is driven by the stepper motor control component to realize the parallel transfer of the braided wire 10. S20: The fixing component on the straightening station performs a fixing action. The upper pressure block 41 moves downward and cooperates with the lower pad block 40 to clamp and fix the two ends of the braided wire 10 respectively. S30: The straightening stiff bristle brush assembly is activated. The first lower roller 31 and the second lower roller 32 rotate counterclockwise synchronously and the upper roller 33 rotates clockwise synchronously, or the first lower roller 31 and the second lower roller 32 rotate clockwise synchronously and the upper roller 33 rotates counterclockwise synchronously. The straightening stiff bristles on the surface comb and straighten the battery core wire and cotton thread. S40: After straightening, the fixing component releases the braided wire 10, and the material stepping conveyor moves the braided wire 10 to the next station. Repeat steps S10-S30 to straighten the next section of braided wire 10.

[0029] The beneficial effects of the technical solution provided in this application are as follows: Through the relative rotation characteristics of the straightening bristle assembly and the material and size design of the straightening bristles, the entanglement structure of the battery core wire and cotton thread can be quickly loosened, and bent battery core wires can be straightened. The straightening and combing efficiency is significantly improved compared to traditional manual or mechanical methods. The straightening bristles combine rigidity and elasticity, are compatible with most braided wire specifications, and can penetrate deep into gaps to straighten all cotton threads, increasing the yield rate of subsequent separation processes to over 99%. The anti-static treatment on the bristle surface prevents dust adsorption, and the 60-80D hardness parameter setting ensures that it is not easily flattened during long-term use, extending the component's service life. The symmetrical dual-operation platform can simultaneously process both ends of the braided wire 10, and with stepper transmission control, it is compatible with automated production lines, reducing process waiting time.

[0030] Example 3 Based on Embodiment 2, this embodiment further provides a preferred method for straightening the core wires of the braided wire 10. In the straightening method of Embodiment 2, the rotation speed, pressure, and action time of the straightening stiff brush assembly are fixed parameters, which cannot be dynamically adjusted according to the specifications of the braided wire 10, such as diameter 5-15mm, number of core wire strands 3-10, cotton thread winding density, and real-time straightening status, such as the degree of unwinding. This results in poor versatility: for thin-diameter, low-strand wires, excessive pressure can easily damage the core wires; for thick-diameter, high-winding-density wires, the straightening is insufficient, requiring manual rework. It also leads to low efficiency: a fixed straightening time, such as 5 seconds, results in redundant time consumption in simple winding scenarios and is insufficient in complex scenarios, leading to an unbalanced overall production cycle.

[0031] The method for straightening the core wire of the braided wire 10 in this embodiment adds a laser detection station before step S10. The diameter and surface winding density of the core wire of the braided wire 10 are scanned by a laser profile sensor, such as the Keyence LK series, and the number of winding turns per unit length is calculated by image recognition. The number of wire strands can be measured simultaneously via a resistance detection module, or the number of wire strands can be pre-input. When processing multiple types of braided wires on the same device, a resistance detection module is preferred to avoid frequent parameter changes and human errors caused by parameter modifications.

[0032] The detection data is transmitted to the PLC controller, matched with the preset parameter database, and the initial straightening parameters are generated.

[0033] Add the following step to step S30: S31: Dynamic separation images of the battery core wire and cotton thread are captured by a high-speed camera, and the untangling rate is calculated in real time using a convolutional neural network algorithm, with a target threshold of 98%. If the unwinding rate is less than 60% within 50% straightening time, the rotation speed of the first lower roller 31, the second lower roller 32, and the upper roller 33 will be automatically increased by 10%-20%, extending the straightening time by 20%. If the unraveling rate is ≥98%, the straightening should be terminated early, with the shortest operation time not less than 2 seconds; If the bending angle of the battery cell wire is detected to be greater than 15°, the pressure of the upper roller 33 will be automatically reduced by 5%-10% to avoid excessive bending of the battery cell wire. Add the following step to step S40: S41: After the straightening operation is completed, the actual parameters, including the inspection specifications, adjusted speed, pressure, and time, and the final straightening effect are fed back to the data block. The final straightening effect can be fed back through the pass rate of manual sampling and the pass rate of the next process. The parameter matching model is optimized through Q-learning to improve the adaptive accuracy.

[0034] This device can adapt to braided wires with diameters of 5-15mm and strand counts of 3-10, eliminating the need for manual mold changes or parameter adjustments and reducing changeover time from 30 minutes to less than 1 minute. Dynamic pressure adjustment significantly reduces core wire damage. The average straightening time is reduced from 5 seconds to 3.8 seconds, increasing production cycle time; the first-pass yield in complex winding scenarios increases from 85% to 98%. The parameter self-learning function allows the equipment to accumulate experience and, after long-term use, adapt to new wire models, such as ultra-fine diameter or high-toughness core wires.

[0035] By introducing pre-detection, dynamic feedback, and self-learning control methods into the straightening process, this approach breaks through the traditional fixed-parameter model. Through multi-dimensional parameter linkage adjustment, it simultaneously solves three major pain points: poor versatility, high damage rate, and low efficiency. The technical effect is superior to simple parameter optimization or single sensor applications. The solution can be directly integrated into existing production lines. Although the hardware cost increases slightly, the overall lifecycle revenue is improved by more than 30%, making it valuable for industrial applications.

[0036] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. The above embodiments only illustrate several implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this application's patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this application, and these all fall within the protection scope of this application.

[0037] It should be noted that when an element is referred to as being "fixed to" or "set on" another component, it can be directly or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly or indirectly connected to the other component. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0039] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

Claims

1. A device for straightening the core wires of a braided electrical wire, characterized in that, It includes a straightening component set on the braided wire end dismantling platform. The straightening component is set on the straightening station of the braided wire end dismantling platform. A material stepping conveyor is set on one side of the straightening station. The material stepping conveyor moves the braided wire to the straightening station through a conveying clamp. The straightening assembly includes a fixing component and a straightening stiff brush assembly. The fixing component clamps and fixes the ends of the braided wires that are transferred to the straightening station, and the straightening stiff brush assembly straightens the core wires and cotton threads of the braided wires.

2. The device for straightening the core wires of a braided wire according to claim 1, characterized in that, The braided wire end disassembly platform includes two opposing work platforms: a first work platform and a second work platform. The straightening station and straightening component on the first work platform are symmetrically arranged with the straightening station and straightening component on the second work platform. The transmission clamps on the first work platform and the second work platform respectively clamp the two ends of a braided wire. The fixing components on the first work platform and the second work platform respectively clamp the end of a braided wire. The straightening stiff brushes on the first work platform and the second work platform respectively straighten the core wire and cotton thread at both ends of a braided wire.

3. The device for straightening the core wires of a braided wire according to claim 2, characterized in that, It also includes a stepper motor control component, which controls a braided wire to be conveyed along the production line direction through the material stepping conveyor of the first working platform and the material stepping conveyor of the second working platform on the braided wire end disassembly platform.

4. The device for straightening the core wires of a braided wire according to claim 3, characterized in that, The material transfer station transports the straightened braided wires from the straightening station to the next station.

5. The device for straightening the core wires of a braided wire according to claim 1, characterized in that, The fixing component includes a lower pad block disposed below the braided wire at the straightening station and an upper pressure block that can move up and down. The upper pressure block moves downward and clamps and fixes the end of the braided wire at the straightening station.

6. The device for straightening the core wires of a braided wire according to claim 5, characterized in that, The upper surface of the lower pad is provided with at least one anti-slip texture or an anti-slip groove that matches the shape of the braided wire.

7. The device for straightening the core wires of a braided wire according to claim 1, characterized in that, The straightening stiff bristle brush assembly includes a drive motor unit, a first lower roller, a second lower roller, and an upper roller. The surfaces of the first lower roller, the second lower roller, and the upper roller are densely covered with straightening stiff bristles. The distance between the upper roller and the first lower roller, and between the upper roller and the second lower roller, is less than twice the length of the straightening stiff bristles.

8. The device for straightening the core wires of a braided wire according to claim 7, characterized in that, The first and second lower rollers rotate counterclockwise synchronously, while the upper roller rotates clockwise synchronously, or the first and second lower rollers rotate clockwise synchronously, while the upper roller rotates counterclockwise synchronously.

9. The device for straightening the core wires of a braided wire according to claim 7, characterized in that, The straightening bristles are made of nylon or polyester fiber, with a diameter of 0.1mm-0.5mm and a length of 10mm-100mm. The hardness of the straightening bristles is Shore hardness 60D-80D.

10. A method for straightening the core wires of a braided electrical wire, characterized in that, Including the following steps: S10: The braided wire is moved along the production line direction to the straightening station by the transfer clamps on the two material stepping conveyors set in parallel on the first and second work platforms. The corresponding set of transfer clamps on the first and second work platforms is driven by the stepper motor control component to realize the parallel transfer of the braided wire. S20: The fixing component on the straightening station performs a fixing action. The upper pressure block moves downward and cooperates with the lower pad block to clamp and fix the two ends of the braided wire respectively. S30: The straightening stiff bristle assembly is activated. The first and second lower rollers rotate counterclockwise synchronously and the upper roller rotates clockwise synchronously, or the first and second lower rollers rotate clockwise synchronously and the upper roller rotates counterclockwise synchronously. The straightening stiff bristles on the surface comb and straighten the battery core wire and cotton thread. S40: After straightening, the fixing component releases the braided wire, and the material stepping conveyor moves the braided wire to the next station. Repeat steps S10-S30 to straighten the next section of braided wire.

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