Copper-magnesium alloy strand stranding forming equipment
Patent Information
- Application Number
- CN202611489155.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-09-23
- Publication Date
- 2026-10-27
AI Technical Summary
若不能及时识别各股线束的异常偏转状态并缓冲其瞬时摆动,容易影响线束进入绞合区域时的走线稳定性和贴合程度
1.本发明提供一种铜镁合金绞线绞合成型设备,通过两组监测模块检测导向轮架的偏转状态或单位时间内的触发次数,以判断对应线束的张力异常趋势;转轴、复位涡卷弹簧、双向丝杆、制动盘及制动片形成机械联动的可变阻尼结构,利用线束张力引起的导向轮架偏转改变其摆动阻尼,从而在有效摆动行程内缓冲瞬时张力波动,降低导向轮架快速碰撞限位位置以及线束松弛、冲击的风险,提高绞合过程的运行稳定性。
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Figure CN122991764A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of copper-magnesium alloy stranding technology, and specifically to a copper-magnesium alloy stranding forming device. Background Technology
[0002] In the manufacturing of copper-magnesium alloy stranded wire, stranding equipment is the core equipment that determines the final quality of the product. Due to its high strength, high conductivity, and excellent fatigue resistance, copper-magnesium alloy stranded wire is widely used in high-end fields such as electrified railway contact networks, long-span transmission lines, and aerospace cables.
[0003] During the production process, factors such as mechanical jamming of the pay-off roller, bearing damage, or damping failure can cause frequent fluctuations in single-wire tension. If these fluctuations are not detected and controlled in time, they will directly affect the density and structural uniformity of the stranded cable, and may even cause wire breakage. At the same time, the multi-strand wires are divergent before entering the stranding area and are difficult to gather evenly, resulting in insufficient bonding of the stranded cable and unstable finished product quality.
[0004] A Chinese patent with publication number CN111768923A, entitled "Cable Stranding Process and Stranding Device," discloses a technical solution including a drive assembly and a stranding assembly. The stranding assembly comprises a front winch, an untwisting unit, a rear winch, and a stranding device. The untwisting unit is located between the front and rear winches and improves stranding quality by untwisting individual wires before stranding. However, during the continuous stranding of copper-magnesium alloy stranded wires, each strand may still experience momentary deflection and tension changes due to fluctuations in the unwinding state or stranding speed. Simultaneously, multiple strands require separation, guidance, and convergence before entering the stranding area. If abnormal deflection states of each strand cannot be identified and their momentary oscillations buffered in time, it can easily affect the routing stability and fit of the strands when entering the stranding area. Therefore, there is an urgent need to develop a copper-magnesium alloy stranding forming device capable of detecting the operating state of each strand, buffering momentary tension fluctuations, and improving the convergence degree before stranding. Summary of the Invention
[0005] The purpose of this invention is to provide a copper-magnesium alloy stranding forming device to solve the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A copper-magnesium alloy stranded wire stranding forming device includes a housing, within which a stranding module for stranding multiple outer layer wire bundles around a center line is disposed. A mounting rod is fixedly connected to one side of the housing, and a fixing assembly is fixedly disposed on the mounting rod. The fixing assembly includes a fixing plate fixedly sleeved around the periphery of the mounting rod, a guide tube fixedly connected to the top of the fixing plate, and a wire reel fixedly connected to the side wall of the guide tube. Several monitoring and adjustment components are circumferentially arranged on the side wall of the wire reel. Each monitoring and adjustment component includes a fixing frame, a guide wheel frame disposed within the fixing frame, and two sets of monitoring modules for detecting the swing state of the guide wheel frame. All fixing frames are fixedly connected to the wire reel. The device also includes a clamping component and a guiding component, which are sequentially arranged between the monitoring and adjustment component and the stranding module along the wire harness conveying direction; The clamping assembly is used to adjust the position of each strand of wire relative to the center line to improve the fit between each strand of wire and the center line before stranding; the guiding assembly is used to separate and guide each strand of wire to reduce the impact of downstream stranding motion on the oscillation detection of the guide wheel frame.
[0007] Using the above technical solution, the tension of the multi-strand copper-magnesium alloy wire harness changes during the unwinding process due to factors such as the unwinding status and twisting speed fluctuations. If these changes are not identified and mitigated in time, it can easily lead to unstable wire harness routing or uneven twisting. This solution involves circumferentially arranging several monitoring and adjustment components on the side wall of the conductor reel. Two sets of monitoring modules detect the swing state or limit trigger state of the guide wheel frame to determine the abnormal tension trend of the corresponding wire harness and output a prompt. The swing resistance of the guide wheel frame is mechanically adjusted by its deflection, which drives the rotating shaft and adjustment mechanism.
[0008] A further improvement of the technical solution of the present invention is that: the monitoring and adjustment component further includes a rotating shaft, the rotating shaft is rotatably connected to the fixed frame, the guide wheel frame is fixedly connected to the side wall of the rotating shaft, one end of the rotating shaft is connected to the fixed frame through a reset spiral spring, and the other end of the rotating shaft is provided with an adjustment mechanism.
[0009] Using the above technical solution, the change in wire harness tension will cause the guide wheel frame to drive the rotating shaft to produce a corresponding angular displacement. The reset spiral spring will then store or release energy, thereby converting the change in wire harness tension into the rotational motion of the rotating shaft, which serves as the mechanical drive input for the adjustment mechanism.
[0010] A further improvement of the technical solution of the present invention is that: the adjustment mechanism includes a bidirectional lead screw fixedly connected to the other end of the rotating shaft, the bidirectional lead screw having two threaded sections with opposite directions of rotation, and two second sliders respectively threadedly sleeved on the corresponding threaded sections; a guide rod and a brake disc are fixedly connected to the other side of the fixed frame, the guide rod slides through the two second sliders, brake pads are fixedly connected to the side walls of the two second sliders respectively, and the brake disc is located between the two brake pads.
[0011] Using the above technical solution, the rotational drive of the aforementioned rotating shaft is received. When the bidirectional lead screw rotates with the rotating shaft, the two second sliders move towards or away from each other under the constraint of the guide rod, causing the two brake pads to move closer to or further away from the brake disc located between them, thereby changing the swing resistance of the rotating shaft and the guide wheel frame. This structure utilizes the rotational shaft deflection caused by the tension of the wiring harness to directly drive the resistance adjustment mechanism, suppressing its rapid swing within the effective swing stroke of the guide wheel frame and reducing the impact when the guide wheel frame approaches the limit position.
[0012] A further improvement of the technical solution of the present invention is that: the fixing component further includes an operating shell, the guide tube is fixedly inserted through the middle part of the operating shell and the middle part of the wire tray, the wire tray has a plurality of wire holes arranged in a circular array near the outer periphery, the middle part of the wire tray has a plurality of sliding grooves arranged in a circular array, and the side wall of the wire tray is provided with a plurality of first guide wheels corresponding to the wire holes arranged in a circular array.
[0013] To achieve orderly guidance of the wire harness before it enters the monitoring and adjustment components, the above technical solution uses a circular array of wire-passing holes and a first guide wheel on the wire guide plate. The wire-passing holes provide initial positioning for each wire harness being introduced, while the first guide wheel provides initial steering and tension buffering. The two work together to ensure that the multiple wire harnesses maintain a uniform circumferential distribution and a stable routing angle before entering the guide wheel frame, avoiding mutual interference or abnormal swaying of the wire harnesses in the monitoring area, and ensuring the accuracy and consistency of the data collected by the monitoring module.
[0014] A further improvement of the technical solution of the present invention is that: a worm gear mechanism is provided on the outer periphery of the guide tube and inside the operating shell, the worm wheel of the worm gear mechanism is rotatably sleeved on the outer periphery of the guide tube, and a rotating handle is rotatably connected to the side wall of the operating shell, the rotating handle being connected to the worm of the worm gear mechanism.
[0015] To facilitate convenient adjustment of the clamping assembly's convergence by operators, this solution incorporates a handle on the side wall of the operating housing. The rotational motion of the handle is transmitted to the rotating disk via a worm gear mechanism. This solution utilizes a self-locking worm gear mechanism. After the operator completes the adjustment by rotating the handle, the rotating disk reliably locks itself in the set position, preventing rebound or displacement due to equipment vibration or wiring harness reaction force. This ensures consistent clamping conditions during long-term continuous production and eliminates the need for an additional locking mechanism.
[0016] A further improvement of the technical solution of the present invention is that: the clamping assembly includes a rotating disk rotatably sleeved on the outer periphery of the guide tube, the worm wheel of the worm gear mechanism is fixedly connected to one side of the rotating disk, and a clamping module is provided on the other side of the rotating disk.
[0017] Using the above technical solution, based on the adjustment power transmitted by the worm gear mechanism, this solution rotatably mounts a rotating disk on the side wall of the guide tube. An arc-shaped drive groove is formed on the rotating disk. When the rotating disk rotates, each arc-shaped drive groove pushes the corresponding first slider to synchronously move radially towards the center, causing the slide rod and the second guide wheel to move inward synchronously. This structure ensures that each strand of wire is uniformly gathered towards the center line, allowing the outer layer of wire to approach the center line at a smaller incident angle before stranding, effectively reducing the stranding gap and improving the density and structural uniformity of the finished cable.
[0018] A further improvement of the technical solution of the present invention is that: the clamping module includes a guide frame fixedly sleeved on the outer periphery of the guide tube, the rotating disk is provided with a plurality of arc-shaped drive grooves, a first slider is slidably arranged in each arc-shaped drive groove, a slide rod is fixedly connected to each first slider, each slide rod is slidably arranged along the radial direction of the guide frame, and a second guide wheel is connected to one end of each slide rod, the second guide wheel slidingly engaging with the corresponding slide groove.
[0019] Using the above technical solution, to coordinate with the synchronous gathering action of the aforementioned rotating disk, this solution fixes the guide frame around the outer circumference of the guide tube, allowing the rotating disk to rotate relative to the guide frame and the guide tube. When the rotating disk rotates, the arc-shaped drive groove pushes the first slider to move, and the slide rod, under the radial guidance of the guide frame, drives the second guide wheel to move radially, thereby forming a stable radial guiding constraint and preventing the second guide wheel from skewing and causing scratches or additional resistance to the wire harness.
[0020] A further improvement of the technical solution of the present invention is that: the guide component includes a sleeve, a plurality of connecting blocks are fixedly connected to the side wall of the sleeve, a fixing rod is fixedly connected to the side wall of the plurality of connecting blocks and fixedly connected to the side wall of the guide plate, a positioning block is fixedly connected to one side of the sleeve, and a plurality of positioning grooves are provided on the side wall of the positioning block.
[0021] To reduce the impact of downstream stranding motion on the stability of the wiring in the monitoring area, this solution incorporates a guide assembly between the conductor reel and the stranding module. The sleeve is fixedly connected to the conductor reel via a connecting block and a fixing rod. Several positioning slots on the positioning block separate and limit the outer strands of the wire harness. The sleeve constrains the direction of wire harness transport, thereby limiting lateral sway of the wire harness within the monitoring area and reducing the possibility of the wire harness detaching from the guide wheel or fluctuations in the monitoring signal.
[0022] In some embodiments, the housing is further provided with a drive module, a positioning frame, a collection module and a retraction module. The output end of the drive module is connected to the positioning frame, and the collection module and the retraction module are provided inside the positioning frame. A cover plate is hinged to the top of the housing, a control module is provided on the front side of the housing, a guide ring coaxially arranged with the sleeve is sleeved on the mounting rod, and the retraction module is configured to cooperate with the hinge module.
[0023] Using the above technical solution, the wire harness, after being processed by the monitoring and adjustment component, the clamping component, and the guiding component, enters the stranding module. The stranding module strands the multiple outer layer wires around the center line at a set pitch. The untwisting module untwises the stranded cable, and the collection module winds the cable up. The aforementioned drive module, collection module, untwisting module, and control module can adopt conventional structures from existing stranding equipment, and their specific structures can be set according to the stranding and winding methods of the equipment.
[0024] By adopting the above technical solution, the technical effects achieved by this invention compared to the prior art are as follows: 1. This invention provides a copper-magnesium alloy stranded wire stranding forming device. Two sets of monitoring modules detect the deflection state of the guide wheel frame or the number of triggers per unit time to determine the abnormal tension trend of the corresponding wire harness. The rotating shaft, reset spiral spring, bidirectional lead screw, brake disc, and brake pads form a mechanically linked variable damping structure. The deflection of the guide wheel frame caused by the wire harness tension changes its swing damping, thereby buffering instantaneous tension fluctuations within the effective swing stroke, reducing the risk of the guide wheel frame rapidly colliding with the limit position and the wire harness slack and impact, and improving the operational stability of the stranding process.
[0025] 2. This invention provides a copper-magnesium alloy stranded wire stranding molding device. Through a worm gear mechanism and an arc-shaped drive groove on a rotating disk, multiple first sliders and second guide wheels are simultaneously driven radially towards the center. This ensures that the multiple outer strands of wire are close to the center line at a small incident angle before entering the stranding zone, effectively reducing the stranding gap and improving the density and structural uniformity of the finished cable. Simultaneously, the self-locking characteristic of the worm gear drive allows the rotating disk to be reliably locked after adjustment, preventing rebound deviation due to vibration or wire bundle reaction force. This ensures consistent pressing conditions during long-term continuous production. Furthermore, by adjusting the rotation angle of the rotating disk, it can accommodate wire bundles of different diameters, enhancing the device's versatility.
[0026] 3. This invention provides a copper-magnesium alloy stranded wire stranding forming device, in which a guide component is set between the conductor reel and the stranding module, the positioning groove on the positioning block separates and limits each outer layer of wire bundle, and the sleeve constrains the conveying direction of the wire bundle, thereby limiting the lateral sway of the wire bundle in the monitoring area, reducing the roller derailment and monitoring signal fluctuation caused by the downstream stranding motion, and improving the consistency of the monitoring status.
[0027] 4. This invention provides a copper-magnesium alloy stranded wire stranding and forming device, which sequentially passes multiple single wire bundles in an S-shape through a first guide wheel, a guide wheel frame, and a second guide wheel to form a multi-level tension buffer path. This wire routing method provides stable friction while creating a waveform wire storage effect, which can absorb and release the small length changes caused by fluctuations in wire feeding speed, effectively buffering the instantaneous impact force during stranding, further reducing the risk of wire breakage, and improving the stability of equipment operation. Attached Figure Description
[0028] The invention will now be further described with reference to the accompanying drawings.
[0029] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the connection of the fixing component, clamping component, guiding component, and monitoring and adjusting component of the present invention; Figure 3 This is a schematic diagram of the assembly inside the housing of the present invention; Figure 4 This is an assembly schematic diagram from another perspective of the interior of the housing of the present invention; Figure 5 This is a schematic diagram of the structure of the fixing component of the present invention; Figure 6 This is a schematic diagram illustrating the installation of the fixing component and the clamping component of the present invention; Figure 7 This is a schematic diagram of the internal structure of the fixing component of the present invention; Figure 8 For the present invention Figure 2 Enlarged structural diagram at point A; Figure 9 This is a schematic diagram of the structure of the fixing component and the clamping component of the present invention; Figure 10 This is a structural schematic diagram of the fixing component and the clamping component of the present invention from another perspective; Figure 11 This is a first-view structural schematic diagram of the monitoring and adjustment component of the present invention; Figure 12 This is a schematic diagram of the monitoring and adjustment component of the present invention from a second perspective; Figure 13 This is a schematic diagram of the structure of the guiding component of the present invention; Figure 14 This is a cross-sectional structural schematic diagram of the guide component of the present invention; Figure 15 For the present invention Figure 12 A magnified structural diagram at point B in the middle.
[0030] In the diagram: 1. Fixing assembly; 101. Wire guide plate; 102. First guide wheel; 103. Operating housing; 104. Wire hole; 105. Guide tube; 106. Fixing plate; 107. Rotary handle; 108. Slide groove; 109. Worm gear mechanism; 2. Pressing assembly; 201. Second guide wheel; 202. Rotating disk; 203. Guide frame; 204. Slide rod; 205. First slider; 3. Guiding assembly; 301. Fixing rod; 302. Connecting block; 303. Sleeve; 304. Positioning block 305. Positioning groove; 4. Monitoring and adjustment assembly; 401. Monitoring module; 402. Fixing frame; 403. Reset spiral spring; 404. Guide wheel frame; 405. Rotating shaft; 406. Brake disc; 407. Guide rod; 408. Two-way lead screw; 409. Brake pad; 410. Second slider; 5. Housing; 6. Cover plate; 7. Control module; 8. Guide ring; 9. Mounting rod; 10. Drive module; 11. Collection module; 12. Positioning frame; 13. Un-twist module; 14. Twisting module. Detailed Implementation
[0031] The present invention will be further described in detail below with reference to the embodiments.
[0032] Example 1 like Figures 1-15 As shown, the present invention provides a copper-magnesium alloy stranded wire stranding forming device, including a housing 5; the housing 5 is provided with a stranding module 14 for stranding multiple outer layer wires around the center line; a mounting rod 9 is fixedly connected to one side of the housing 5, and a fixing component 1 is fixedly installed on the mounting rod 9. The fixing component 1 includes a fixing plate 106 fixedly sleeved on the outer periphery of the mounting rod 9, a guide tube 105 is fixedly connected to the top of the fixing plate 106, and a wire reel 101 is fixedly connected to the side wall of the guide tube 105.
[0033] like Figures 1-15 As shown, the side wall of the guide plate 101 is provided with a number of monitoring and adjustment components 4 in a circular shape. Each monitoring and adjustment component 4 includes a fixed frame 402, a guide wheel frame 404 disposed in the fixed frame 402, and two sets of monitoring modules 401. Rollers are respectively provided at both ends of the guide wheel frame 404. The two sets of monitoring modules 401 are used to detect the swing state of the guide wheel frame 404. The fixed frames 402 are all fixedly connected to the guide plate 101.
[0034] like Figures 1-5 , Figure 8 , Figure 11 , Figure 12 and Figure 15As shown, a rotating shaft 405 is rotatably connected inside the fixed frame 402. A guide wheel frame 404 is fixedly connected to the side wall of the rotating shaft 405. One end of the rotating shaft 405 is connected to the fixed frame 402 via a return spiral spring 403. A pointer is provided on one side of the return spiral spring 403 and is fixedly connected to one end of the rotating shaft 405. This pointer is used to cooperate with a preset angle scale on the side wall of the fixed frame 402, so that the operator can read the deflection angle of the guide wheel frame 404 to help determine the tension change state of the corresponding wire harness.
[0035] It should be noted that the two monitoring modules 401 are respectively located on opposite sides of the swing stroke of the guide wheel frame 404, and are respectively connected to the control module 7 for processing monitoring signals. They are used to detect the state of the guide wheel frame 404 deflecting to a preset position in two opposite directions. The deflection of the guide wheel frame 404 is determined by the balance between the wire harness tension and the restoring force of the return spiral spring 403: when the wire harness tension increases, the guide wheel frame 404 deflects towards the first monitoring module; when the wire harness tension decreases, the guide wheel frame 404 returns to the second monitoring module under the action of the return spiral spring 403. The control module 7 can determine whether the corresponding wire harness has an abnormal trend of high or low tension based on the number of triggers of each monitoring module 401 per unit time and output a prompt. The triggering status of the two sets of monitoring modules 401 alone cannot directly determine the specific cause of faults such as wire feed roller jamming, bearing damage, damping failure, or wire slippage.
[0036] A guide component 3 is provided in the middle of the side wall of the fixed component 1. The guide component 3 is used to form a separation guide area between the stranding section and the monitoring section, limiting the lateral sway of each strand in the monitoring area, so as to reduce the impact of downstream stranding motion on the monitoring status.
[0037] A clamping component 2 is provided on the front side inside the fixing component 1. Before twisting, the clamping component 2 gradually gathers the multi-strand divergent wire bundles to adjust the incident angle of the wire bundles and ensure the tight fit between the inner and outer layers of wire bundles during twisting, thereby improving the density and structural uniformity of the finished cable.
[0038] like Figures 1-5 , Figure 8 , Figure 11 , Figure 12 and Figure 15 As shown, in order to adjust the swing resistance of the guide wheel frame 404 according to the change of wire harness tension, a bidirectional lead screw 408 is fixedly connected to the other end of the rotating shaft 405. The bidirectional lead screw 408 has two threaded sections with opposite directions of rotation, and two second sliders 410 are respectively threaded onto the corresponding threaded sections. A guide rod 407 and a brake disc 406 are fixedly connected to the other side of the fixed frame 402. The guide rod 407 slides through the two second sliders 410. Brake pads 409 are fixedly connected to the side walls of the two second sliders 410 respectively, and the brake disc 406 is located between the two brake pads 409.
[0039] The specific control logic is as follows: When the wire harness tension increases, the wire harness drives the guide wheel frame 404 to deflect and drives the rotating shaft 405 and the bidirectional lead screw 408 to rotate. The two second sliders 410 move under the constraint of the guide rod 407, causing the two brake pads 409 to move away from each other relative to the brake disc 406. The swing resistance of the guide wheel frame 404 in this deflection direction is reduced, thereby buffering the instantaneous tension increase by changing the local envelope path of the wire harness on the roller. When the wire harness tension decreases, the reset spiral spring 403 drives the rotating shaft 405 to rotate in the opposite direction, and the two second sliders 410 move in the opposite direction, causing the two brake pads 409 to move closer to the brake disc 406. The rotational resistance of the rotating shaft 405 increases, thereby suppressing the excessive slack of the wire harness caused by the rapid reset of the guide wheel frame 404. This adjustment mechanism is used to change the swing resistance of the guide wheel frame 404 and does not directly drive the speed change of the pay-off roller; its adjustment effect is based on the premise that the guide wheel frame 404 is within the effective swing stroke.
[0040] It should be noted that, in addition to the restoring force provided by the reset spiral spring 403, this solution adds a friction damping adjustment pair consisting of a two-way lead screw 408, a brake disc 406, and a brake pad 409, so that the guide wheel frame 404 has a damping response that varies with the position of the rotating shaft within the effective swing stroke, thereby suppressing the rapid swing of the guide wheel frame 404 and reducing the impact when it approaches the limit position.
[0041] like Figures 1-7 , Figure 9 , Figure 10 As shown, in order to improve the fit between the wire harness and the inner layer wire (i.e., the center line) in the guide tube 105, the clamping assembly 2 includes a rotating disk 202 rotatably sleeved on the outer periphery of the guide tube 105. The rotating disk 202 is provided with a plurality of arc-shaped drive grooves that cooperate with the first slider 205. When the rotating disk 202 rotates, each arc-shaped drive groove pushes the corresponding first slider 205 to move radially, thereby uniformly gathering each strand of outer layer wire harness, so that the outer layer wire is close to the center line at a small angle before entering the twisting area. The worm wheel of the worm gear mechanism 109 is fixedly connected to one side of the rotating disk 202, and a clamping module is provided on the other side of the rotating disk 202.
[0042] like Figures 1-7 , Figure 9 , Figure 10As shown, the clamping module includes a guide frame 203 fixedly sleeved on the outer periphery of the guide tube 105. First sliders 205 are slidably disposed within each arc-shaped drive groove of the rotating disk 202. Each first slider 205 is fixedly connected to a slide rod 204. Each slide rod 204 is slidably disposed along the radial direction of the guide frame 203. One end of each slide rod 204 is connected to a second guide wheel 201 that slidably engages with the slide groove 108. When the rotating disk 202 rotates, the arc-shaped drive grooves drive the first sliders 205 and slide rods 204 to move radially, causing all second guide wheels 201 to adjust synchronously inward or outward.
[0043] It should be noted that before the wire harness is stranded, the multiple strands of a single wire harness are divergent when they are led out from the wire feed reel, making it difficult to converge towards the center line. This results in low fit and insufficient density of the stranded cable. Therefore, by rotating the rotating disk 202, the first slider 205 is moved by the arc-shaped drive groove, and the second guide wheel 201 on the slide rod 204 is brought closer to the center of the rotating disk 202. This reduces the incident angle of the wire harness before stranding, making the wire harness fit more closely with the inner layer wire before stranding, thereby improving product quality.
[0044] like Figures 1-7 , Figure 9 , Figure 10 As shown, the fixing assembly 1 also includes an operating housing 103, and a guide tube 105 is fixedly inserted through the middle of the operating housing 103 and the middle of the wire guide plate 101. The wire guide plate 101 has several wire-passing holes 104 arranged in a circular array near its outer periphery, several grooves 108 arranged in a circular array in the middle of the wire guide plate 101, and several first guide wheels 102 arranged in a circular array on the sidewall of the wire guide plate 101 corresponding to the wire-passing holes 104. The wire-passing holes 104 are used to limit the initially introduced wire harness, and the first guide wheels 102 are used to turn the wire harness, forming a multi-stage wiring path together with the subsequent guide wheel frame 404 and the second guide wheel 201.
[0045] It should be noted that the multiple strands of single wires pass through the first guide wheel 102, the guide wheel frame 404 and the second guide wheel 201 in an S-shape in sequence. This S-shaped wire routing method can provide stable friction and form a waveform wire storage effect. On the one hand, it can absorb and release the small length changes caused by the fluctuation of wire feeding speed. On the other hand, it can effectively buffer the instantaneous impact force during the twisting process and significantly reduce the risk of wire breakage.
[0046] like Figures 1-7 , Figure 9 , Figure 10As shown, a worm gear mechanism 109 is provided on the outer periphery of the guide tube 105 and inside the operating housing 103. The worm wheel of the worm gear mechanism 109 is rotatably sleeved on the outer periphery of the guide tube 105 and fixedly connected to the rotating disk 202. A handle 107 connected to the worm is rotatably connected to the side wall of the operating housing 103. When the operator rotates the handle 107, the worm gear mechanism 109 drives the rotating disk 202 to rotate; utilizing the self-locking effect of the worm gear transmission, the rotating disk 202 can be held in the adjusted position.
[0047] like Figures 1-5 , Figure 13 , Figure 14 As shown, to reduce the impact of wire harness deflection on the monitoring and adjustment component 4 during stranding, the guide component 3 includes a sleeve 303. Several connecting blocks 302 are fixedly connected to the side wall of the sleeve 303. A fixing rod 301, which is fixedly connected to the side wall of the wire reel 101, is fixedly connected to the side wall of the connecting blocks 302. A positioning block 304 is fixedly connected to one side of the sleeve 303. Positioning grooves 305 on the side wall of the positioning block 304 are used to pass through each outer layer of wire harness, and a hole in the center of the positioning block 304 is used to pass through the center line. The positioning grooves 305 separate and limit each outer layer of wire harness, and the sleeve 303 constrains the conveying direction of the wire harness, thereby limiting the lateral sway of the wire harness within the monitoring area and reducing the possibility of the wire harness detaching from the roller or fluctuations in the monitoring signal.
[0048] It should be noted that after multiple single wire harnesses pass through the positioning groove 305 and are led out through the sleeve 303, they can maintain a relatively stable conveying direction before entering the twisting area, reducing the possibility of wire harness swaying, detachment from the roller, and affecting the monitoring status.
[0049] like Figures 1-4 As shown, a drive module 10 is installed inside the housing 5. The output end of the drive module 10 is connected to the positioning frame 12. The positioning frame 12 is equipped with a collection module 11 and a de-twisting module 13. A stranding module 14 that cooperates with the de-twisting module 13 is also installed inside the housing 5. A cover plate 6 is hinged to the top of the housing 5. A control module 7 is installed on the front side of the housing 5. A guide ring 8 coaxially arranged with the sleeve 303 is sleeved on the mounting rod 9. The drive module 10 is used to drive the positioning frame 12 to move. The collection module 11 is used to wind up the stranded cable. The de-twisting module 13 is used to de-twise the stranded cable. The stranding module 14 is used to strand multiple outer layer wires around the center line at a set pitch. The above modules can adopt the conventional structure of existing stranding equipment.
[0050] The working principle of this copper-magnesium alloy stranding molding equipment is explained in detail below.
[0051] like Figures 1-15As shown, before the equipment starts, multiple single strands of wire are led out by the feed roller and pass through the wire hole 104 of the wire guide plate 101 and the first guide wheel 102 in an S-shape, achieving initial limiting and first tension buffering. Then, they pass through the guide wheel frame 404 of the monitoring and adjustment component 4 and enter the second guide wheel 201 of the clamping component 2. The operator rotates the handle 107, driving the rotating plate 202 to rotate via the worm gear mechanism 109. Its arc-shaped drive groove pushes multiple first sliders 205 to move synchronously towards the center, causing the second guide wheel 201 on the slide bar 204 to move inward, making the outer layer of wire close to the center line at a smaller incident angle, improving the twisting density. The worm gear's self-locking characteristic prevents springback after adjustment. The wire harness then enters the guide component 3, passes through the positioning groove 305 of the positioning block 304, and then through the sleeve 303. The positioning groove 305 and the sleeve 303 together constrain the conveying direction of each strand of wire, reducing the possibility of lateral swaying and detachment of the wire harness from the guide wheel within the monitoring area. Changes in wire harness tension are directly reflected in the oscillation of the guide wheel frame 404. When tension increases, the wire harness drives the guide wheel frame 404 to deflect downwards, the rotating shaft 405 drives the bidirectional lead screw 408 to rotate, and the engagement state between the brake pad 409 and the brake disc 406 changes accordingly. The guide wheel frame 404 temporarily releases part of the stored wire length by changing the local envelope path of the wire harness to buffer the instantaneous increase in tension. When tension decreases, the reset spiral spring 403 drives the rotating shaft 405 to rotate in the opposite direction, the guide wheel frame 404 resets, and the friction between the brake pad 409 and the brake disc 406 suppresses its rapid swing back, reducing the possibility of excessive slack in the wire harness. Two sets of monitoring modules 401 detect the state of the guide wheel frame 404 deflecting in opposite directions to a preset position. The control module 7 can determine whether the corresponding wire harness has an abnormal trend of high or low tension based on the number of triggers per unit time and output a prompt. The pointer and dial allow the operator to read the deflection angle for easy inspection. After being guided, gathered, and having its swing resistance adjusted, the outer layer of wire harness enters the stranding module 14 together with the center line passing through the guide tube 105, and is stranded around the center line at a set pitch. The untwisting module 13 untwises the stranded cable, the collecting module 11 winds up the cable, the control module 7 controls the operation of related modules, and the guide ring 8 on the mounting rod 9 keeps the wire harness aligned.
[0052] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.
Claims
1. A copper-magnesium alloy stranded wire stranding and forming device, comprising a housing (5); characterized in that: The housing (5) is provided with a twisting module (14) for twisting multiple outer layer wires around the center line. A mounting rod (9) is fixedly connected to one side of the housing (5). A fixing component (1) is fixedly provided on the mounting rod (9). The fixing component (1) includes a fixing plate (106) fixedly sleeved around the mounting rod (9). A guide tube (105) is fixedly connected to the top of the fixing plate (106). A wire reel (101) is fixedly connected to the side wall of the guide tube (105). A plurality of monitoring and adjustment components (4) are arranged circumferentially on the side wall of the wire reel (101). Each monitoring and adjustment component (4) includes a fixing frame (402), a guide wheel frame (404) set in the fixing frame (402), and two sets of monitoring modules (401) for detecting the swing state of the guide wheel frame (404). The fixing frames (402) are all fixedly connected to the wire reel (101). It also includes a clamping component (2) and a guiding component (3), which are arranged sequentially between the monitoring and adjusting component (4) and the stranding module (14) along the wire harness conveying direction; The clamping assembly (2) is used to adjust the position of each strand of wire relative to the center line to improve the degree of contact between each strand of wire and the center line before stranding; the guiding assembly (3) is used to separate and guide each strand of wire to reduce the impact of downstream stranding motion on the swing detection of the guide wheel frame (404).
2. The copper-magnesium alloy stranding and forming equipment according to claim 1, characterized in that: The fixed frame (402) is rotatably connected to a rotating shaft (405), and the guide wheel frame (404) is fixedly connected to the side wall of the rotating shaft (405). One end of the rotating shaft (405) is connected to the fixed frame (402) through a reset spiral spring (403), and the other end of the rotating shaft (405) is provided with an adjustment mechanism.
3. The copper-magnesium alloy stranding and forming equipment according to claim 2, characterized in that: The adjusting mechanism includes a bidirectional lead screw (408) fixedly connected to the other end of the rotating shaft (405). The bidirectional lead screw (408) has two threaded sections with opposite directions of rotation. Two second sliders (410) are respectively threaded onto the corresponding threaded sections. A guide rod (407) and a brake disc (406) are fixedly connected to the other side of the fixing frame (402). The guide rod (407) slides through the two second sliders (410). Brake pads (409) are fixedly connected to the side walls of the two second sliders (410). The brake disc (406) is located between the two brake pads (409).
4. The copper-magnesium alloy stranding and forming equipment according to claim 1, characterized in that: The fixing component (1) also includes an operating shell (103). The guide tube (105) is fixedly inserted through the middle of the operating shell (103) and the middle of the wire tray (101). The wire tray (101) has a plurality of wire holes (104) arranged in a circular array near the outer periphery. The middle of the wire tray (101) has a plurality of sliding grooves (108) arranged in a circular array. The side wall of the wire tray (101) is provided with a plurality of first guide wheels (102) corresponding to the wire holes (104) arranged in a circular array.
5. The copper-magnesium alloy stranding and forming equipment according to claim 4, characterized in that: A worm gear mechanism (109) is provided on the outer periphery of the guide tube (105) and inside the operating shell (103). The worm wheel of the worm gear mechanism (109) is rotatably sleeved on the outer periphery of the guide tube (105). A handle (107) is rotatably connected to the side wall of the operating shell (103). The handle (107) is connected to the worm of the worm gear mechanism (109).
6. The copper-magnesium alloy stranding and forming equipment according to claim 5, characterized in that: The clamping assembly (2) includes a rotating disk (202) rotatably sleeved on the outer periphery of the guide tube (105), the worm wheel of the worm gear mechanism (109) is fixedly connected to one side of the rotating disk (202), and a clamping module is provided on the other side of the rotating disk (202).
7. The copper-magnesium alloy stranding and forming equipment according to claim 6, characterized in that: The clamping module includes a guide frame (203) fixedly sleeved on the outer periphery of the guide tube (105). The rotating disk (202) has several arc-shaped drive grooves. Each arc-shaped drive groove has a first slider (205) slidably arranged in it. Several first sliders (205) are fixedly connected to slide rods (204). Several slide rods (204) are slidably arranged along the radial direction of the guide frame (203). One end of several slide rods (204) is connected to a second guide wheel (201). The second guide wheel (201) slides in cooperation with the corresponding slide groove (108).
8. The copper-magnesium alloy stranding and forming equipment according to claim 1, characterized in that: The guide assembly (3) includes a sleeve (303), a plurality of connecting blocks (302) are fixedly connected to the side wall of the sleeve (303), a fixing rod (301) fixedly connected to the side wall of the plurality of connecting blocks (302) and fixedly connected to the side wall of the guide plate (101), a positioning block (304) is fixedly connected to one side of the sleeve (303), and a plurality of positioning grooves (305) are provided on the side wall of the positioning block (304).
Citation Information
Patent Citations
Cable twisting process and twisting device thereof
CN111768923A