Seven-wire non-conductor frame stranding machine

Abstract

This application discloses a seven-wire non-standard conductor stranding machine, relating to the field of wire and cable manufacturing equipment technology. The stranding machine includes an auger frame, a chain drive mechanism, an auger main shaft, a wire distributor plate, a first pre-separation plate, a positioning plate, a wire gathering plate, and a wire-connecting mold. Seven cradle frames are arranged side-by-side in the auger frame, each containing a cradle with a wire-feeding plate mounted on it. The wire distributor plate is connected to the auger frame. The chain drive mechanism is connected to the auger main shaft. The wire gathering plate, positioning plate, and first pre-separation plate are sequentially fitted onto one end of the auger main shaft, and the other end of the auger main shaft is connected to the side of the wire distributor plate opposite to the auger frame. The wire-connecting mold is positioned corresponding to the wire gathering plate. This application, through this configuration, constructs a system capable of progressively constraining, precisely positioning, and ultimately tightly converging seven non-standard conductors. This effectively solves problems such as conductor path instability, attitude loss, and loose stranding, thereby improving stranding quality and efficiency.

Description

Technical Field

[0001] This application relates to the field of wire and cable manufacturing equipment technology, and in particular to a seven-wire non-circular conductor stranding machine. Background Technology

[0002] In the field of wire and cable manufacturing, the stranding machine is a key piece of equipment used to strand multiple conductors (wire cores) into a single strand (cable core) according to specific rules. Irregularly shaped conductors (such as fan-shaped and tile-shaped conductors) are widely used in power cables (especially medium and high voltage cables) because they can effectively improve the cable fill factor and roundness. However, high-quality and high-efficiency stranding of multiple irregularly shaped conductors (especially seven conductors) faces many technical challenges.

[0003] When traditional frame stranding machines handle multiple irregularly shaped conductors, the irregular cross-sections of these conductors make them prone to relative displacement, flipping, or twisting during the stranding process. Traditional frame stranding machines struggle to accurately constrain the position and orientation of the seven irregularly shaped conductors in their complex motion trajectories, easily leading to uneven stranding, conductor deformation, and even damage to the insulation layer. Furthermore, traditional frame stranding machines lack effective multi-stage guiding and positioning mechanisms, resulting in unstable conductor paths before entering the stranding die. This can easily cause problems such as loosening, skipping, and serpentine bends, severely affecting the tightness, roundness, and electrical performance of the cable core. Utility Model Content

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a seven-wire non-circular conductor stranding machine, which constructs a system capable of progressively constraining, precisely positioning, and ultimately tightly gathering seven non-circular conductors. This effectively solves the problems of conductor path instability, attitude loss, and loose stranding, thereby improving stranding quality and efficiency.

[0005] This application provides a seven-wire non-shaped conductor frame stranding machine, including: a auger frame, a chain drive mechanism, an auger main shaft, a wire separating plate, a first pre-separation plate, a positioning plate, a wire gathering plate, and a wire paralleling mold;

[0006] The auger frame has seven cradle frames arranged in parallel, each cradle frame is equipped with a cradle, and each cradle is equipped with a wire feeding reel. The wire distribution plate is connected to the auger frame.

[0007] The chain drive mechanism is connected to the auger main shaft. The wire collecting reel, the positioning reel, and the first pre-separating reel are sequentially sleeved on one end of the auger main shaft. The other end of the auger main shaft is connected to the side of the wire separating plate opposite to the auger frame. The wire paralleling mold is set corresponding to the wire collecting reel. The wire separating plate, the wire collecting reel, the positioning reel, and the first pre-separating reel are all provided with wire holes corresponding to the conductors on each wire feeding reel. The diameter of the positioning reel and the first pre-separating reel is smaller than the diameter of the wire separating plate, and the diameter of the wire collecting reel is smaller than the diameter of the first pre-separating reel and the positioning reel.

[0008] According to some embodiments of this application, the seven-wire non-circular conductor frame stranding machine further includes a connector, one end of which is connected to the end of the branch plate away from the auger frame, and the other end of which is connected to the auger main shaft.

[0009] According to some embodiments of this application, the chain drive mechanism includes a drive mechanism, a first drive sprocket, a timing belt, and a second drive sprocket. The output end of the drive mechanism is connected to the first drive sprocket, and the second drive sprocket is connected to the auger spindle. The first drive sprocket and the second drive sprocket are connected by the timing belt.

[0010] According to some embodiments of this application, the seven-wire non-conductor frame stranding machine further includes a chain drive mechanism protective sleeve, which is sleeved on the second drive sprocket, and the synchronous belt is located inside the chain drive mechanism protective sleeve.

[0011] According to some embodiments of this application, the seven-wire non-circular conductor frame stranding machine further includes a second pre-separating disc and a third pre-separating disc. The second pre-separating disc and the third pre-separating disc are both sleeved on the auger main shaft, and the second pre-separating disc is located between the first pre-separating disc and the second drive sprocket, and the third pre-separating disc is located between the second drive sprocket and the wire separating plate.

[0012] According to some embodiments of this application, the seven-wire non-circular conductor frame stranding machine further includes a first mounting base. The first mounting base includes a main shaft support seat. The main shaft support seat has a connecting hole corresponding to the shape of the end of the connector that is connected to the auger main shaft. The auger main shaft and the connector are connected in the connecting hole.

[0013] According to some embodiments of this application, the first mounting base further includes a paralleling mold support base, which is connected to the main shaft support base. The seven-wire non-circular conductor frame stranding machine further includes a paralleling mold fixing base plate, on which the paralleling mold is fixedly mounted. The paralleling mold fixing base plate is mounted on the paralleling mold support base, and the paralleling mold fixing base plate and the paralleling mold support base are detachably connected.

[0014] According to some embodiments of this application, each cradle includes a bearing base and a rotating shaft. The bearing base is disposed in the corresponding cradle frame, the rotating shaft is mounted on the corresponding bearing base, and the feed reel is sleeved on the corresponding rotating shaft.

[0015] In this application, seven independent cradle frames are arranged side-by-side in the auger frame, each cradle equipped with a dedicated wire feeding reel, providing an independent and stable wire feeding foundation for seven irregularly shaped conductors. A wire separating plate, a first pre-separating reel, a positioning reel, and a wire gathering reel are sequentially fitted onto the auger main shaft, forming a multi-stage, progressive guiding and positioning channel. Corresponding wire holes on each reel precisely constrain the spatial position and angle of each conductor, effectively preventing displacement, flipping, and twisting of the irregularly shaped conductors during the stranding process, ensuring the conductors are arranged in an orderly manner before stranding. The diameter of the wire gathering reel is smaller than that of the first pre-separating reel and the positioning reel. The design of the hub optimizes the spatial layout, allowing for more concentrated guidance of the conductors before final convergence, further enhancing stability before entering the stranding die. This multi-level precise positioning mechanism, combined with the stranding die corresponding to the hub, ensures that the seven irregularly shaped conductors enter the die smoothly and consistently with precise relative positions for stranding, significantly improving stranding quality. This greatly reduces defects such as looseness, skipped wires, and serpentine bends, significantly improving the tightness, roundness, and geometric accuracy of the cable core, thereby enhancing the electrical and mechanical performance of the final cable product. This application constructs a system capable of progressively constraining, precisely positioning, and ultimately tightly converging seven irregularly shaped conductors, effectively solving problems such as conductor path instability, attitude loss, and loose stranding, thus improving stranding quality and efficiency.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] Additional aspects and advantages of this application will become apparent and readily understood in conjunction with the following description of the embodiments, in which:

[0018] Figure 1 This is a schematic diagram of the structure of a seven-wire non-circular conductor frame stranding machine provided in an embodiment of this application.

[0019] Figure label:

[0020] Screw frame 110, cradle frame 111, cable reel 112, cable divider 113, connector 114;

[0021] Chain drive mechanism 120, chain drive mechanism protective sleeve 121;

[0022] Screw main shaft 130, cable collector 131, positioning plate 132, first pre-separation plate 133, second pre-separation plate 134, main shaft support 135, paralleling mold support 136, paralleling mold fixing base plate 137, paralleling mold 138. Detailed Implementation

[0023] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0024] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0025] In the description of this application, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0026] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0027] In the field of wire and cable manufacturing, the stranding machine is a key piece of equipment used to strand multiple conductors (wire cores) into a single strand (cable core) according to specific rules. Irregularly shaped conductors (such as fan-shaped and tile-shaped conductors) are widely used in power cables (especially medium and high voltage cables) because they can effectively improve the cable fill factor and roundness. However, high-quality and high-efficiency stranding of multiple irregularly shaped conductors (especially seven conductors) faces many technical challenges.

[0028] When traditional frame stranding machines handle multiple irregularly shaped conductors, the irregular cross-sections of these conductors make them prone to relative displacement, flipping, or twisting during the stranding process. Traditional frame stranding machines struggle to accurately constrain the position and orientation of the seven irregularly shaped conductors in their complex motion trajectories, easily leading to uneven stranding, conductor deformation, and even damage to the insulation layer. Furthermore, traditional frame stranding machines lack effective multi-stage guiding and positioning mechanisms, resulting in unstable conductor paths before entering the stranding die. This can easily cause problems such as loosening, skipping, and serpentine bends, severely affecting the tightness, roundness, and electrical performance of the cable core.

[0029] To address the aforementioned problems, this application proposes a seven-wire irregular conductor frame stranding machine. The embodiments of this application will be further described below with reference to the accompanying drawings.

[0030] Reference Figure 1 This application provides a seven-wire non-circular conductor frame stranding machine, including an auger frame 110, a chain drive mechanism 120, an auger main shaft 130, a wire distributor 113, a first pre-separation plate 133, a positioning plate 132, a wire collecting plate 131, and a wire paralleling mold 138. Seven cradle frames 111 are arranged in parallel within the auger frame 110, each cradle frame 111 containing a cradle, and each cradle is equipped with a wire feeding plate 112. The wire distributor 113 is connected to the auger frame 110. The chain drive mechanism 120 is connected to the auger main shaft 130. The wire collecting plate 131 and the positioning plate 132 are also connected. 2 and the first pre-separation plate 133 are sequentially sleeved on one end of the auger main shaft 130. The other end of the auger main shaft 130 is connected to the side of the wire distribution plate 113 away from the auger frame 110. The wire paralleling mold 138 is set corresponding to the wire collection plate 131. The wire distribution plate 113, the wire collection plate 131, the positioning plate 132 and the first pre-separation plate 133 are all provided with wire holes corresponding to the conductors on each wire release plate 112. The diameter of the positioning plate 132 and the first pre-separation plate 133 is smaller than the diameter of the wire distribution plate 113, and the diameter of the wire collection plate 131 is smaller than the diameter of the first pre-separation plate 133 and the positioning plate 132.

[0031] It should be noted that the auger frame 110, as the main support structure of the equipment, is constructed from high-strength steel through welding and bolting, and contains seven independent workstations arranged side-by-side along the axial direction. The cradle frame 111, as a sub-unit within the auger frame 110, is an independently welded structure, rigidly fixed to the auger frame 110 by bolts. Its core function is to physically isolate the various wire-laying units, preventing the seven conductors from tangling and colliding during the initial wire-laying stage.

[0032] It should be noted that this application employs a four-stage guiding / positioning structure—a wire splitter plate 113, a first pre-splitting plate 133, a positioning plate 132, and a wire gathering plate 131—which are sequentially fitted onto one end of the auger spindle 130. This forms an orderly, axially arranged multi-stage constraint channel. The conductor emerges from the cradle and sequentially passes through the wire splitter plate 113 (initial separation), the first pre-splitting plate 133 (pre-gathering and guiding), the positioning plate 132 (precise positioning), and the wire gathering plate 131 (final gathering), finally entering the wire merging mold 138. This hierarchical structure provides stability for the conductor. Precise path guidance greatly reduces problems caused by path instability. Seven cradle frames 111 are arranged in parallel, each independently accommodating a feed reel 112, providing each irregularly shaped conductor with an independent, physically isolated feed source, reducing mutual interference in the initial stage. Furthermore, the wire holes corresponding to the conductors on each feed reel 112 are provided on the wire separating plate 113, the wire collecting reel 131, the positioning reel 132, and the first pre-separating reel 133; that is, each stage of the reel has precisely corresponding guide holes for each of the seven conductors. The shapes of these holes are designed to match the cross-sections of irregularly shaped conductors, continuously constraining the conductor's posture during movement to prevent it from flipping or twisting. By setting the diameter of the hub 131 to be smaller than the diameters of the first pre-separation hub 133 and the positioning hub 132, the smaller diameter means a tighter constraint on the conductors and a more compact space during the final gathering stage (hub 131). This helps to forcibly gather the seven irregularly shaped conductors tightly together, making final preparations for entering the stranding die 138, improving the tightness and roundness of the stranding, and preventing relative displacement. This application... Through the aforementioned multi-stage precise guidance (separator 113, first pre-separator 133, positioning plate 132, and gathering plate 131) and final tight aggregation (small-diameter gathering plate 131 + paralleling mold 138) mechanism, the conductors are ensured to move in a controlled, orderly, and tight manner throughout the stranding path. This effectively reduces the risk of uneven stranding, conductor deformation, and insulation damage caused by path instability and attitude loss, thereby improving the final cable core's tightness, roundness, and electrical performance. Simultaneously, the clear structure and accurate positioning also contribute to improving the stability and efficiency of equipment operation. Therefore, this application, through the core structural combination of "seven independent cradles + four-stage guide positioning plate 132 (including specific wire holes) + small-diameter gathering plate 131 + paralleling mold 138," constructs a system capable of progressively constraining, precisely positioning, and ultimately tightly aggregating seven irregularly shaped conductors. This aims to effectively solve problems such as conductor path instability, attitude loss, and loose stranding, thereby improving stranding quality and efficiency.

[0033] In some embodiments, a cable length measuring mechanism is provided at the output end of the seven-wire non-circular conductor frame stranding machine, that is, on the side of the paralleling mold 138 away from the cable collector 131. The cable length measuring mechanism includes a cable meter wheel, a meter wheel bearing seat, a meter wheel shaft, a roller mechanism, a rotary encoder, an electronic counter, a pressure wheel, a pressure wheel shaft, a pressure wheel bearing seat, a guide wheel assembly, a sliding mechanism, a worktable, an electric lifting rod, and a control device. The guide wheel assembly includes a front guide wheel assembly and a rear guide wheel assembly, and the roller mechanism includes a front roller assembly and a rear roller assembly. The front guide wheel assembly, the rear guide wheel assembly, the front roller assembly, and the rear roller assembly are all located on the worktable. The front roller assembly and the rear roller assembly are symmetrically located at both ends of the worktable, and the front roller assembly and the rear roller assembly are also symmetrically located at both ends of the worktable. The front roller assembly and the rear roller assembly are both located on the front guide wheel assembly and the rear guide wheel assembly. Between them, the worktable is set on the electric lifting rod; the sliding mechanism includes a first drive mechanism, a second drive mechanism, a first slider, a second slider and a slide rail. The control device is connected to the first drive mechanism, the second drive mechanism and the electric lifting rod respectively. The slide rail is set on the worktable and between the front roller assembly and the rear roller assembly. The first slider and the second slider can be slidably set on the slide rail. The pressure roller shaft seat is set on the first slider and the meter counting wheel shaft seat is set on the second slider. The first drive mechanism is connected to the first slider and the second drive mechanism is connected to the second slider. The bottom end of the pressure roller shaft is rotatably connected to the pressure roller shaft seat. The pressure roller is sleeved on the pressure roller shaft. The bottom end of the meter counting wheel shaft is rotatably connected to the meter counting wheel shaft seat. The cable meter counting wheel is sleeved on the meter counting wheel shaft. The rotating shaft of the rotary encoder is fixedly connected to the top end of the meter counting wheel shaft. The rotary encoder is also electrically connected to the electronic counter.In the cable length measuring mechanism, the lateral position adjustment of the pressure wheel and the measuring wheel is achieved through a sliding mechanism, the vertical position adjustment of the worktable is achieved through an electric lifting rod, and the accurate measurement of cable length is achieved through a rotary encoder and an electronic counter. The front guide wheel assembly and the rear guide wheel assembly guide the cable conveyed from the paralleling mold 138 into and out of the measuring device, ensuring smooth cable operation. The front idler roller assembly and the rear idler roller assembly are symmetrically arranged at both ends of the worktable to support the cable and reduce friction. The rotary encoder is fixedly connected to the measuring wheel shaft and measures the rotation angle of the measuring wheel. The electronic counter is electrically connected to the rotary encoder and calculates the cable length and displays it in real time. The control device drives the first slider horizontally on the slide rail via the first drive mechanism. The control device also drives the second slider to move laterally on the slide rail via the second drive mechanism, and controls the raising and lowering of the electric lifting rod. By setting up a sliding mechanism, the lateral position of the pressure roller and the measuring wheel can be quickly and accurately adjusted. The electric lifting rod allows for adjustment of the vertical position of the pressure roller and the measuring wheel, enabling the cable length measuring device to adapt to cables of different diameters and types, improving the equipment's versatility. The combination of a rotary encoder and an electronic counter ensures high accuracy in cable length measurement and reduces errors. The symmetrical arrangement of the roller mechanism and guide wheel assembly ensures smooth cable operation and reduces vibration and sway. The integrated design of the control device allows operators to easily adjust the positions of the pressure roller, the measuring wheel, and the worktable via the control panel. This application can be flexibly used on different production lines or equipment, improving the equipment's versatility and utilization, and effectively enhancing operational convenience and measurement accuracy.

[0034] It should be noted that the splitter plate 113 (large diameter) provides initial separation space to ensure that the seven conductors have independent paths without interference; the positioning plate 132 / first pre-splitter plate 133 (medium diameter) gradually gathers the conductors, pre-aggregates and corrects their posture; the conductor gathering plate 131 (minimum diameter) strongly compresses the conductor spacing to form a tight bundle structure, providing high-precision input for the paralleling die 138; through the diameter decreasing design, the conductors are progressively constrained from "separation → pre-aggregation → fine positioning → final compression" to effectively solve the problem of loose stranding of irregular conductors.

[0035] In this application, by arranging seven independent cradle frames 111 side by side in the auger frame 110, each cradle is equipped with a dedicated wire feeding reel 112, providing an independent and stable wire feeding foundation for seven irregularly shaped conductors; the wire separating plate 113, the first pre-separation reel 133, the positioning plate 132, and the wire collecting reel 131 are sequentially fitted onto the auger main shaft 130, forming a multi-level, progressive guiding and positioning channel; the corresponding wire holes opened on each plate can precisely constrain the spatial position and angle of each conductor, effectively preventing the irregularly shaped conductors from shifting, flipping, and twisting during the stranding process, ensuring that the conductors are arranged in an orderly manner before stranding; the diameter of the wire collecting reel 131 is smaller than that of the first pre-separation reel 133. The design of the pre-separation reel 133 and positioning reel 132 optimizes the spatial layout, allowing the conductors to be guided more centrally before final convergence, further enhancing stability before entering the stranding mold 138. This multi-level precise positioning mechanism, combined with the stranding mold 138 corresponding to the hub reel 131, ensures that the seven irregularly shaped conductors can smoothly enter the mold for stranding in a highly consistent and precisely positioned state, significantly improving stranding quality. This greatly reduces defects such as looseness, skipped wires, and serpentine bends, significantly improving the tightness, roundness, and geometric dimensional accuracy of the cable core, thereby enhancing the electrical and mechanical performance of the final cable product. This application constructs a system capable of progressively constraining, precisely positioning, and ultimately tightly converging seven irregularly shaped conductors, effectively solving problems such as conductor path instability, attitude loss, and loose stranding, thereby improving stranding quality and efficiency.

[0036] Reference Figure 1 It is understandable that the seven-wire non-conductor frame stranding machine also includes a connector 114. One end of the connector 114 is connected to the end of the branch plate 113 away from the auger frame 110, and the other end of the connector 114 is connected to the auger main shaft 130.

[0037] It should be noted that the function of connector 114 is to achieve a rigid connection between the wire splitter 113 and the auger spindle 130, ensure that the wire splitter 113 rotates synchronously with the spindle, maintain the stability of the conductor path, and transmit the twisting power, so that the wire holes on the wire splitter 113 can accurately constrain the conductor posture and prevent displacement or flipping.

[0038] It is understood that the chain drive mechanism 120 includes a drive mechanism, a first drive sprocket, a timing belt, and a second drive sprocket. The output end of the drive mechanism is connected to the first drive sprocket, and the second drive sprocket is connected to the auger spindle 130. The first drive sprocket and the second drive sprocket are connected by a timing belt.

[0039] Reference Figure 1 It is understandable that the seven-wire non-conductor frame stranding machine also includes a chain drive mechanism protective sleeve 121, which is fitted onto the second drive sprocket and the synchronous belt is located inside the chain drive mechanism protective sleeve 121.

[0040] It should be noted that the drive mechanism, the first transmission sprocket, the synchronous belt, and the second transmission sprocket provide stable and reliable power transmission. The second transmission sprocket is completely wrapped by the chain drive mechanism protective sleeve 121, which places the synchronous belt inside. This effectively isolates external dust pollution, reduces operating noise, eliminates the safety hazard of chain breakage and ejection, and provides a solid guarantee for the high-speed and long-term stable operation of the equipment. It breaks through the speed bottleneck of traditional open chain drives and further supports the realization of high-speed twisting.

[0041] Reference Figure 1 It is understandable that the seven-wire non-conductor frame stranding machine also includes a second pre-separation plate 134 and a third pre-separation plate. Both the second pre-separation plate 134 and the third pre-separation plate are sleeved on the auger main shaft 130. The second pre-separation plate 134 is located between the first pre-separation plate 133 and the second drive sprocket, and the third pre-separation plate is located between the second drive sprocket and the wire separating plate 113.

[0042] In this embodiment, the second pre-separating disc 134 and the third pre-separating disc are both located close to the second drive sprocket, and the diameters of the second pre-separating disc 134 and the third pre-separating disc are both smaller than the diameter of the splitter plate 113. The diameter of the cable collector 131 is smaller than the diameters of the second pre-separating disc 134, the third pre-separating disc, the first pre-separating disc 133, and the positioning disc 132.

[0043] It should be noted that the function of the pre-separation plate diameter design (second / third pre-separation plate < line divider 113; hub plate 131 < other plates) is: (1) Space optimization: small diameter pre-separation plates (second / third) are arranged close to the sprocket to reduce rotational inertia and improve the response speed of high-speed operation; (2) Gradual compression: the minimum diameter of hub plate 131 forces the conductor spacing to achieve final tight aggregation and avoid loosening and wire skipping.

[0044] Reference Figure 1 It is understandable that the seven-wire non-conductor frame stranding machine also includes a first mounting base. The first mounting base includes a main shaft support 135. The main shaft support 135 has a connecting hole with a shape corresponding to the end of the connector 114 that is connected to the auger main shaft 130. The auger main shaft 130 and the connector 114 are connected in the connecting hole.

[0045] It should be noted that the auger spindle 130 and the distribution plate 113 are connected by a bearing (installed in the bearing mounting seat), which ensures the smooth rotation of the spindle and the stability of the distribution plate 113.

[0046] It should be noted that the design of the connecting hole and the end of the connector 114 that connects to the auger spindle 130 is designed to ensure that the interface between the auger spindle 130 and the connector 114 is fully matched, eliminating assembly errors and ensuring coaxiality; the spindle support 135 bears the torsional load of the stranding process, prevents the spindle from wobbling, maintains the positional accuracy of the multi-stage guide plates (separator plate 113, pre-separator plate, etc.), provides a stable rotational reference for high-speed stranding, and avoids conductor path instability caused by vibration.

[0047] Reference Figure 1 It is understood that the first mounting base also includes a paralleling mold support base 136, and the seven-wire non-conductor frame stranding machine also includes a paralleling mold fixing base plate 137. The paralleling mold 138 is fixedly mounted on the paralleling mold fixing base plate 137, and the paralleling mold fixing base plate 137 is mounted on the paralleling mold support base 136. The paralleling mold fixing base plate 137 and the paralleling mold support base 136 are detachably connected.

[0048] It should be noted that the paralleling mold 138 is installed on the paralleling mold support base 136 through the paralleling mold fixing base plate 137 and adopts a detachable connection. This makes the replacement, adjustment and maintenance of the mold quick and easy, greatly shortens the downtime and improves the production flexibility.

[0049] Understandably, each cradle includes a bearing base and a rotating shaft. The bearing base is located in the corresponding cradle frame 111, the rotating shaft is mounted on the corresponding bearing base, and the feed reel 112 is fitted onto the corresponding rotating shaft.

[0050] It should be noted that each cradle includes: a bearing base (fixed inside the cradle frame 111) and a rotating shaft (mounted on the base via a bearing). The feed reel 112 is fitted onto the rotating shaft and can rotate freely.

[0051] In some embodiments, the bearing base employs a self-aligning roller bearing, allowing the shaft to maintain smooth rotation even with slight misalignment, adapting to changes in conductor tension.

[0052] It should be noted that the working principle of the pay-off reel 112 (passive pay-off mechanism) is as follows: conductor tension drives rotation: when the stranding equipment pulls the cable core forward, the conductor is subjected to axial tension. This tension acts on the wire coil on the pay-off reel 112, generating a rotational torque, which drives the pay-off reel 112 to passively rotate around the axis, continuously releasing the conductor.

[0053] In some embodiments, the wire reel 112 is equipped with a friction brake to ensure stable conductor tension by adjusting the braking torque, preventing loosening or tangling of the wire due to inertia.

[0054] It should be noted that the power transmission path is as follows: drive mechanism → first transmission sprocket → synchronous belt → second transmission sprocket → auger main shaft 130. The auger main shaft 130 drives the following components to rotate synchronously (revolve): cable collector 131, positioning plate 132, first / second / third pre-separation plate (sleeved on the main shaft), cable separator 113 (rigidly connected to the main shaft through connector 114), and auger frame (revolve through the linkage between the main shaft and cable separator 113). The purpose of the revolution is to ensure that all guide plates and the auger frame rotate at the same speed and in the same direction, so that the seven conductors maintain a relatively stationary spatial relationship during movement, avoiding twisting or conductor entanglement due to speed differences. Rotation system: passive release of pay-off reel 112: rotation triggering mechanism: when the revolution system pulls the cable core forward → the conductor is subjected to axial tension → the tension acts on the wire coil of pay-off reel 112 → generating rotational torque → driving pay-off reel 112 to passively rotate around its own axis (rotation), continuously releasing the conductor. The pay-off reel 112 is mounted on the cradle shaft via bearings, resulting in minimal frictional resistance. A friction brake can be optionally installed to maintain stable tension by adjusting the braking force (preventing loose or tangled wires). Coordination of rotation and revolution: (1) Rotation of the pay-off reel 112: only releases the conductors and does not participate in the twisting motion; (2) Revolution of the auger frame: drives the entire pay-off unit (cradle + pay-off reel 112) to revolve around the center of the main shaft → causing the seven conductors to make a spiral circular motion around the axis of the main shaft, which is the core action of twisting.

[0055] Specifically, the workflow of the seven-conductor frame stranding machine is as follows: Step 1: Wire feeding stage: ① The seven irregular conductors (such as fan-shaped wire cores) are placed on the wire feeding reel 112 of the independent cradle; ② The conductor ends pass through the cradle exit guide wheel → the corresponding wire hole of the wire separating plate 113 in sequence (initial spatial separation). Step 2: Four-level guiding and positioning process: ① Wire separating plate 113: Initially separates the seven conductors and establishes independent movement paths; ② Pre-separation reel group (first, second, and third pre-separation reels, medium diameter): Gradually narrows the conductor spacing, pre-gathers and corrects the posture; ③ Positioning plate 132 (medium diameter): Core positioning layer: The wire holes are precisely matched according to the irregular cross-section, forcibly correcting the conductor posture and preventing flipping / twisting; ④ Gathering plate 131 (minimum diameter): Utilizes a small diameter design (20%-30% smaller than positioning plate 132) to strongly compress the conductor spacing and achieve final tight gathering. Step 3: Stranding and Shaping: ① The seven conductors tightly gathered by the cable collector 131 enter the paralleling mold 138 in a highly ordered state; ② Within the mold, the following are completed: torsional deformation (twist pitch control) and cross-sectional shaping (interlocking and filling of dissimilar conductors); ③ A tightly packed and round cable core is output. Step 4: Power Transmission: ① The chain drive mechanism 120 drives the auger spindle 130 to rotate → driving the cable collector 131 / positioning plate 132 / first pre-separation plate 133 to rotate synchronously → realizing the helical stranding motion of the conductors; ② Protective sleeve design: The enclosed chain cover isolates dust and prevents chain breakage accidents. Step 5: After the cable core is output from the paralleling mold 138, it enters the cable length measuring mechanism: ① The clamping wheel adaptively clamps the surface of the cable core; ② The meter wheel rotates with the movement of the cable core → the rotary encoder collects the rotation speed → the electronic counter converts the length; ③ The sliding mechanism dynamically adjusts the wheel distance to adapt to different cable diameters.

[0056] For example, the operator manually pulls out the wire end (conductor starting end) of the irregularly shaped conductor on each wire reel 112, first passing it through the preset exit guide wheel or guide ring on the cradle frame 111. The function of this guide wheel / ring is to initially guide the conductor direction, making it face the wire distribution plate 113, reducing the friction between the conductor and the edge of the cradle frame 111. Then, the operator continues to manually pass the conductor wire end that has passed through the cradle exit guide wheel through the wire hole on the wire distribution plate 113 corresponding to its cradle position, according to the preset correspondence (each cradle conductor corresponds to a specific hole on the wire distribution plate 113), to ensure that the conductor enters the correct independent path at the beginning of entering the system. When the equipment is started, the stranding traction force (ultimately from the cable length measuring mechanism or downstream traction equipment) is applied through the cable... The core transmits the tension to each conductor, generating axial tension. This tension acts on the wire coil on the pay-off reel 112, generating a rotational torque. Since the pay-off reel 112 is mounted on a rotating shaft (the shaft is mounted on a bearing base via bearings), this rotational torque overcomes the friction of the shaft bearings and the slight resistance set by the possible friction brake, driving the pay-off reel 112 to rotate passively around the shaft. The rotation of the pay-off reel 112 releases the conductor from the wire coil. As long as the stranding process continues, the tension generated by the traction force will continue to exist, driving the pay-off reel 112 to rotate passively continuously, continuously conveying the irregularly shaped conductors. The function of the cradle outlet guide wheel: After the conductor is released from the pay-off reel 112, it passes through the outlet guide wheel / guide ring on the cradle frame 111. This guide wheel ensures that the conductor leaves the cradle at the correct angle and position, pointing to the corresponding hole on the splitter plate 113. It provides a low-friction turning point to prevent the conductor from wearing or getting stuck at the edge of the cradle frame 111. It is the last positioning point before the conductor leaves the cradle and enters the hole of the splitter plate 113.

[0057] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0058] The above description is the preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

[0059] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A seven-strand irregular conductor frame stranding machine, characterized in that, include: Screw frame, chain drive mechanism, screw main shaft, wire divider, first pre-dividing plate, positioning plate, wire gathering plate and wire paralleling mold; The auger frame has seven cradle frames arranged in parallel, each cradle frame is equipped with a cradle, and each cradle is equipped with a wire feeding reel. The wire distribution plate is connected to the auger frame. The chain drive mechanism is connected to the auger main shaft. The wire collecting reel, the positioning reel, and the first pre-separating reel are sequentially sleeved on one end of the auger main shaft. The other end of the auger main shaft is connected to the side of the wire separating plate opposite to the auger frame. The wire paralleling mold is set corresponding to the wire collecting reel. The wire separating plate, the wire collecting reel, the positioning reel, and the first pre-separating reel are all provided with wire holes corresponding to the conductors on each wire feeding reel. The diameter of the positioning reel and the first pre-separating reel is smaller than the diameter of the wire separating plate, and the diameter of the wire collecting reel is smaller than the diameter of the first pre-separating reel and the positioning reel.

2. The seven-strand irregular conductor frame stranding machine according to claim 1, characterized in that, The seven irregular conductor frame stranding machine also includes a connector, one end of which is connected to the end of the branch plate away from the auger frame, and the other end of which is connected to the auger main shaft.

3. The seven-strand irregular conductor frame stranding machine according to claim 2, characterized in that, The chain drive mechanism includes a drive mechanism, a first drive sprocket, a timing belt, and a second drive sprocket. The output end of the drive mechanism is connected to the first drive sprocket, and the second drive sprocket is connected to the auger spindle. The first drive sprocket and the second drive sprocket are connected by the timing belt.

4. The seven-strand irregular conductor frame stranding machine according to claim 3, characterized in that, The seven-wire non-conductor frame stranding machine also includes a chain drive mechanism protective sleeve, which is fitted onto the second drive sprocket, and the synchronous belt is located inside the chain drive mechanism protective sleeve.

5. The seven-strand irregular conductor frame stranding machine according to claim 3, characterized in that, The seven-wire non-conductor frame stranding machine also includes a second pre-splitting disc and a third pre-splitting disc. Both the second and third pre-splitting discs are sleeved on the auger main shaft. The second pre-splitting disc is located between the first pre-splitting disc and the second drive sprocket, and the third pre-splitting disc is located between the second drive sprocket and the splitting plate.

6. The seven-strand irregular conductor frame stranding machine according to claim 2, characterized in that, The seven-wire non-conductor frame stranding machine also includes a first mounting base, which includes a main shaft support seat. The main shaft support seat has a connecting hole that corresponds to the shape of the end of the connector that is connected to the auger main shaft. The auger main shaft and the connector are connected in the connecting hole.

7. The seven-strand irregular conductor frame stranding machine according to claim 6, characterized in that, The first mounting base also includes a paralleling mold support base, which is connected to the main shaft support base. The seven-wire non-conductor frame stranding machine also includes a paralleling mold fixing base plate, on which the paralleling mold is fixedly mounted. The paralleling mold fixing base plate is mounted on the paralleling mold support base, and the paralleling mold fixing base plate and the paralleling mold support base are detachably connected.

8. The seven-strand irregular conductor frame stranding machine according to claim 1, characterized in that, Each of the cradles includes a bearing base and a rotating shaft. The bearing base is disposed in the corresponding cradle frame, the rotating shaft is mounted on the corresponding bearing base, and the feed reel is sleeved on the corresponding rotating shaft.

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