Method for synchronizing automatic winding of aluminum alloy extrusion wire rod

Abstract

A method for synchronously winding aluminum alloy extrusion wire rod, which utilizes a conical variable-diameter winding drum and a rotatable frame with a reversible angle to realize the uniform winding and transportation of the continuous extrusion blank in the transverse direction, without the assistance of a crane, and only using a hydraulic trolley to complete the unloading and transportation of the wire coil, and the whole process is convenient and easy to operate.

Description

Technical Field

[0001] This invention relates to the field of continuous extrusion production technology, specifically a method for automatic winding of synchronous aluminum alloy extrusion wire rods. Background Technology

[0002] Continuous extrusion is a metal forming technology, also known as CONFORM extrusion. When a strip extrusion blank is continuously fed into the inlet of the extrusion cavity, the wheel groove bites the blank under the action of friction and pulls the metal towards the die hole. The friction is enough to generate an extrusion stress of up to 1000 MPa near the die hole, forcing the metal to flow out of the die hole; thus obtaining a continuous strip or wire.

[0003] The continuously extruded bar billets fed in are typically produced by hot extrusion. Hot extrusion uses an extruder to intermittently extrude cast round bar ingots to obtain continuously extruded billets of relatively long lengths. These billets are then wound into coils and fed into continuous extrusion. The winding device is usually installed at the rear end of the hot extruder's discharge roller conveyor; it can be a vertical or horizontal drum. The winding drum is driven manually or by an electric motor to rotate and wind up the continuously extruded billets. After the operator ties the coiled wire with slings, a crane lifts the entire coil and slowly moves it to a vertical rotating frame. The hollow hole of the coil is fitted into the mandrel on the rotating frame, and finally, the coil is placed on the rotating frame for continuous extrusion.

[0004] However, existing winding and transportation methods have the following drawbacks: 1. During the continuous winding process of a vertical winding drum, the wire accumulates at the bottom end of the drum due to gravity, resulting in uneven winding. 2. After winding a roll of wire, a conventional winding device needs to be transferred, but due to the high winding tension, the wire tightly wraps around the drum, making it difficult to remove. 3. Although a horizontal winding device does not accumulate at the bottom of the drum like a vertical winding device, the winding width is still uneven due to the single winding position, which also causes difficulties in subsequent use and transportation. 4. In the initial stage of lifting the wire roll, manual slings are required. Slinging requires a high level of skill and experience from the operator. The slings also need to pass through the core hole of the wire roll before lifting. If the lifting point is not chosen well, it will result in slanted lifting, unstable lifting, and affect safety. 5. When the coil reaches the vertical rotating frame, if the coil was originally wound by the horizontal drum, it needs to be rotated 90° before it can be threaded into the core rod of the vertical rotating frame. This operation is relatively cumbersome and labor-intensive, affecting production efficiency. 6. During the transportation of the coil, there is a heavy reliance on the workshop overhead crane, resulting in slow movement and the occupation of significant crane resources.

[0005] The following prior art regarding winding devices was retrieved:

[0006] 1. A winding equipment and method for manufacturing galvanized steel strand; 202110854410.2; A winding equipment and method for manufacturing galvanized steel strand includes a base and a winding device, wherein the winding device is provided on the upper surface of the base. When winding galvanized steel strand, the strand first passes through a winding unit, which moves back and forth along the length of the winding unit, allowing the strand to be evenly wound onto the winding unit. The position of the positioning blocks can be adjusted according to the diameter of the strand, thus restricting the position of each layer of strand at the end of the winding unit and preventing the strand from detaching or becoming loose. Secondly, the tensioning unit ensures that the strand being wound by the winding unit remains taut, resulting in a tighter fit of the strand on the winding unit. This also facilitates the packaging and transportation of the wound strand.

[0007] 2. Automatic scaling and winding machine for continuous extrusion press; 201220370498.7; An automatic scaling and winding machine for continuous extrusion press in an extrusion device includes an inner disc and an outer disc located to the right of the inner disc. A main shaft rotating together with the inner disc is located in the middle of the inner disc, with its two ends located on both sides of the inner disc. Multiple outer sliders capable of radial movement are located to the right of the inner disc, and these sliders are evenly arranged circumferentially on the right side of the inner disc. A winding blade is fixedly installed on each outer slider. A roller capable of left and right movement is sleeved on the main shaft to the left of the inner disc. The roller is fixedly installed on an inner slider located inside the outer sliders. The inner slider and outer slider are in a beveled guide fit. A rotating shaft connected to the right end of the roller and driving the roller to move back and forth along the main shaft direction is also present. This invention can wind up the extruded metal wire and adjust the winding inner diameter as needed, easily separating the wound metal wire from the winding equipment, thus facilitating subsequent operations.

[0008] 3. A winding device for a continuous copper busbar extrusion press; 202020005155.5; A winding device for a continuous copper busbar extrusion press, relating to the field of copper busbar production and processing technology, includes an extrusion forming section and a winding section located on the same processing line, with an auxiliary section between the extrusion forming section and the winding section for traction of the copper busbar to reciprocate horizontally. The extrusion forming section includes a base, with an extrusion wheel and a compaction wheel rotatably arranged inside the base. An extrusion cavity is opened on one side of the extrusion wheel, and an extrusion die is arranged inside the extrusion cavity. The winding section includes a winding stand, with a winding wheel rotatably arranged on the winding stand, and a winding motor is driven to the winding wheel. The auxiliary section includes an auxiliary frame, with a slide block slidably arranged on the upper end face of the auxiliary frame and a horizontal drive mechanism driven to the slide block. A pair of traction rollers are rotatably arranged on the slide block. This utility model uses traction rollers to drive the copper busbar to move horizontally while winding, realizing the uniform winding of the copper busbar into a coil. At the same time, it can realize winding and unwinding simultaneously, improving the practicality of the device.

[0009] 4. A novel variable diameter winding core; 201320392535.9; A novel variable diameter winding core includes a drive shaft with a thread at one end, a fixed tapered disc, a stop block, and a threaded movable tapered disc on the drive shaft, the movable tapered disc being fixed on the outside by a disassembly handwheel threaded on the drive shaft; a petal-shaped waste sleeve is fitted between the fixed tapered disc and the movable tapered disc, the petal-shaped waste sleeve being composed of four arc-shaped plates with the inner ring fitted on the stop block, and an elastic rubber ring being provided on the outer ring of the arc-shaped plates. This utility model has a simple structure. In use, due to the elasticity of the elastic rubber ring, the fixed and movable tapered plates at both ends can expand and clamp the petal-shaped waste sleeve, making the diameter of the petal-shaped waste sleeve larger, so that the waste edge of the electronic diaphragm can be collected. After the roll is fully wound, the disassembly handwheel and movable tapered plate are loosened. The diameter of the petal-shaped waste sleeve becomes smaller under the contraction of the elastic rubber ring, which allows the wound layer to fall off smoothly, making it easy to quickly remove the wound layer, realizing quick loading and unloading, which is safe and reliable, and can greatly improve work efficiency.

[0010] Although some winding devices with reel diameter reduction and lateral movement have emerged in the existing technology, the large weight of the wire coil makes unloading the reel after diameter reduction still quite difficult and requires manual dragging assistance. Furthermore, the subsequent wire coil transfer process inevitably occupies overhead crane resources for a long time, resulting in low transfer efficiency and cumbersome procedures. Summary of the Invention

[0011] The purpose of this invention is to provide a method for automatically winding synchronous aluminum alloy extruded wire rods. The drum can achieve a tapered diameter change, which facilitates the sliding of the wire coil. Unloading and transportation can be achieved using a hydraulic trolley. The traditional vertical rotating frame is improved to a rotating frame that can turn 90°. The transverse wire coil does not need to be manually turned. It can be directly loaded by a hydraulic trolley and the rotating frame is turned over, so that it can be directly fed into a state of continuous extrusion. The whole process does not require the participation of an overhead crane, resulting in high transfer efficiency.

[0012] To achieve the above objectives, the technical solution of the present invention is as follows:

[0013] A method for automatic winding of synchronous aluminum alloy extruded wire rods includes the following steps:

[0014] A. The billet obtained from hot extrusion is wound into a coil by a winding device, and the coil is arranged horizontally.

[0015] B. After the wall flaps of the drum contract, they become conical, and the coil is released from the drum under the support of the hydraulic trolley.

[0016] C. The hydraulic trolley transports the wire coil to the tilting frame, aligns the center hole of the wire coil with the positioning rod of the tilting frame, and inserts it.

[0017] D. The flipping shaft of the flipping frame flips the flipping plate 90 degrees, changing the horizontal placement of the wire roll to the vertical placement, thus completing the winding and transportation of the wire roll.

[0018] The winding device has a horizontally positioned drum. One end of the drum is a drum wall plate with a through hole in the middle through which a horizontally pullable core rod extends. The drum is formed by multiple wall segments. The front end of each wall segment is hinged to the front end of the core rod via a support rod, and the rear end of each wall segment is hinged to the end of the first limb of a three-limb rod via an ear plate. A pulley is installed on the second limb of the three-limb rod, and the core rod is fitted with a conical sleeve. The pulley contacts the conical surface of the conical sleeve, and the third limb of the three-limb rod is fixedly connected to a slider. The slider is slidably connected to a slide rail mounted on the drum wall plate.

[0019] The upper end of the truss of the rotating frame is connected to the rotating shaft via a bearing. The rotating frame is fixedly connected to the middle of the rotating shaft. The rotating frame is connected to the rotating disk via a rotating shaft. Several positioning rods are set on the rotating disk.

[0020] In the winding device, when the core rod is pulled back, the surface of the cone sleeve contacts the roller and presses the three-limb rod outward, thereby expanding the diameter of the wall petals. At the same time, the slider connecting the three-limb rod also slides outward along the radially arranged slide rail. The slider guides and stabilizes the movement path of the tail end of the wall petal. In the open state, the connecting rod at the head end of the wall petal is erected, which also expands the head end of the wall petal outward. In the open state of the petal wall, the drum winds up the blank.

[0021] As the core rod advances forward, the three-limb rod loses the contact pressure on the conical sleeve surface, allowing the tail end of the wall flap to retract inward. The connecting rod at the head end of the flap also changes from vertical to diagonal support, reducing its vertical height and also allowing the head end of the flap to retract inward. Furthermore, due to the larger retraction radius at the head end of the flap, the entire wall flap tilts, and the sleeve becomes conical. The coil not only separates from the sleeve but also tends to slide down towards the head end. When the hydraulic support plate of the hydraulic trolley supports the coil and moves backward, the coil can gradually slide down with the trolley without the need for manual pushing.

[0022] In the tilting frame, the hydraulic trolley can be directly loaded by the tilting disc. The tilting frame flips the positioning rod to a horizontal position, the hydraulic trolley adjusts the lifting height, and the wire coil can be moved backward after the center hole is inserted into the positioning rod. Then the tilting frame flips the disc 90 degrees to obtain the normal vertical feeding posture of the wire coil.

[0023] The horizontal bars of adjacent tripods are connected at their midpoints by tension springs. The tension springs provide inward tension to the tripods, enabling the valve walls to automatically contract and reduce their diameter without the pressure of the cone sleeve.

[0024] The head end of the mandrel is connected to the piston rod of the pull-out cylinder. The retraction and extension of the mandrel are powered by the cylinder.

[0025] The drum wall panel is fixedly connected to the passive gear, and the passive gear is connected to the driving gear through a chain. The driving gear is driven by a rotating motor through a reduction gearbox. The through hole of the drum wall panel is fixedly connected to the sleeve. The sleeve is mounted on the transverse frame through a bearing. The core rod passes through the center hole of the sleeve and can move freely horizontally.

[0026] The rotation speed of the drum is matched with the production speed of the blank.

[0027] The transverse frame is connected to the transverse track via a sliding block. A bearing seat is provided at the front end of the transverse frame, and the bearing seat is rotatably connected to the end of the lead screw. A wire block is fixedly provided in the middle of the lower part of the transverse frame, and the wire hole of the wire block passes through the lead screw. The other end of the lead screw is driven by a transverse motor.

[0028] Driven by a transverse motor, the transverse frame moves back and forth with the drum, so that the blank wire is evenly wound onto the drum to form a uniform coil.

[0029] A sector-shaped frame is fixedly installed in the middle of the flipping shaft of the rotating frame. An arc-shaped rack is provided along the sector-shaped edge of the sector-shaped frame. A flipping drive mechanism is installed below the truss, and the flipping drive mechanism engages with the arc-shaped rack through its driving gear. The flipping drive mechanism includes a brake motor, and the motor drive shaft drives the driving gear to rotate through a reducer. The driving gear directly engages with the arc-shaped rack, completing the power input for flipping. Several weight-reducing holes are provided on the sector-shaped frame.

[0030] Advantages of the invention

[0031] 1. In this invention, the winding device's drum can achieve diameter reduction and shrinkage, eliminating the wrapping force of the wire coil and facilitating unloading by the operator. When it is necessary to wind up the blank, the wall flaps of the drum expand to adapt to the winding diameter requirements. Furthermore, the drum can shrink into a conical shape, allowing the wire coil to slide down for unloading, which can be easily achieved using a hydraulic trolley.

[0032] 2. The rotating frame of the present invention has a rotating frame that can turn 90°. The transverse wire coil does not need to be manually turned, and the hydraulic trolley can be used to load the material and rotate the frame to achieve a state in which continuous extrusion feeding can be carried out directly. The whole process does not require the participation of overhead cranes, and the transfer efficiency is high. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the unloading state of the winding device;

[0034] Figure 2 This is a schematic diagram of the elevation structure of the winding device; (winding state)

[0035] Figure 3 This is a side view of the winding device (unloading state).

[0036] Figure 4This is a schematic diagram of the cross-sectional structure of the central axis of the winding device; (wall flap contraction state).

[0037] Figure 5 for Figure 4 Schematic diagram of the AA section structure;

[0038] Figure 6 This is a schematic diagram of the cross-sectional structure of the central axis of the winding device; (with the wall flaps open).

[0039] Figure 7 for Figure 6 Schematic diagram of the BB section structure;

[0040] Figure 8 This is a schematic diagram of the main structure of the tilting and rotating frame (material receiving state).

[0041] Figure 9 This is a schematic diagram of the main structure of the rotating frame (in the flipped state).

[0042] The component names in the attached diagram are as follows: 11-Transverse frame; 12-Transverse motor; 13-Lead screw; 14-Lead block; 15-Bearing seat; 16-Transverse track; 21-Rotating motor; 22-Driving gear; 23-Passive gear; 31-Pull-out cylinder; 32-Sleeve; 4-Drum; 41-Drum wall panel; 42-Slide rail; 43-Slider; 44-Three-limb rod; 45-Pulley; 46-Conical sleeve; 47-Wall flap; 48-Core rod; 49-Support rod; 410-Tension spring; 5-Blank; 61-Truss; 62-Tilting shaft; 63-Fan-shaped frame; 64-Arc rack; 65-Tilting frame; 66-Rotating disk; 67-Rotating shaft; 68-Positioning rod; 69-Tilting drive mechanism. Detailed Implementation

[0043] Example 1

[0044] A method for automatic winding of synchronous aluminum alloy extruded wire rods includes the following steps:

[0045] A. The billet obtained from hot extrusion is wound into a coil by a winding device, and the coil is arranged horizontally.

[0046] B. After the wall flaps of the drum contract, they become conical, and the coil is released from the drum under the support of the hydraulic trolley.

[0047] C. The hydraulic trolley transports the wire coil to the tilting frame, aligns the center hole of the wire coil with the positioning rod of the tilting frame, and inserts it.

[0048] D. The flipping shaft of the flipping frame flips the flipping plate 90 degrees, changing the horizontal placement of the wire roll to the vertical placement, thus completing the winding and transportation of the wire roll.

[0049] The winding device has a horizontally arranged drum 4. One end of the drum 4 is a drum wall plate 41. A through hole is provided in the middle of the drum wall plate 41, through which a core rod 48 that can be pulled out horizontally is passed. The drum 4 is formed into a cylinder by six wall petals 47. The front end of each wall petal 47 is hinged to the front end of the core rod 48 through a support rod 49. The rear end of the wall petal 47 is hinged to the end of the first limb of the three-limb rod 44 through an ear plate. A pulley 45 is installed on the second limb of the three-limb rod 44. The core rod 48 is sleeved on a conical sleeve 46. The pulley 45 contacts the conical surface of the conical sleeve 46. The third limb of the three-limb rod 44 is fixedly connected to a slider 43. The slider 43 is slidably connected to a slide rail 42 installed on the drum wall plate 41.

[0050] The upper end of the truss 61 of the rotating frame is connected to the rotating shaft 62 via a bearing. The rotating frame 65 is fixedly connected to the middle of the rotating shaft 62. The rotating frame 65 is connected to the rotating disk 66 via a rotating shaft 67. Several positioning rods 68 are provided on the rotating disk 66.

[0051] The horizontal bars of adjacent three-limb rods 44 are connected by a tension spring 410.

[0052] The head end of the core rod 48 is connected to the piston rod of the pull-out cylinder 31.

[0053] The roller wall plate 41 is fixedly connected to the passive gear 23, and the passive gear 23 is connected to the driving gear 22 through a chain. The driving gear 22 is driven by the rotating motor 21 through a reduction gearbox. The through hole of the roller wall plate 41 is fixedly connected to the sleeve 32. The sleeve 32 is mounted on the transverse frame 11 through a bearing. The core rod 48 passes through the center hole of the sleeve 32 and can move freely horizontally.

[0054] The transverse frame 11 is connected to the transverse track 16 via a sliding block at its lower part. A bearing seat 15 is provided at the front end of the transverse frame 11. The bearing seat 15 is rotatably connected to the end of the lead screw 13. A wire block 14 is fixedly provided at the lower middle part of the transverse frame 11. The wire hole of the wire block 14 passes through the lead screw 13. The other end of the lead screw 13 is driven by the transverse motor 12.

[0055] The rotating frame is also fixedly provided with a fan-shaped frame 63 in the middle of the rotating shaft 62. The fan-shaped edge of the fan-shaped frame 63 is provided with an arc-shaped rack 64. The truss 61 is provided with a rotating drive mechanism 69 below it. The rotating drive mechanism 69 meshes with the arc-shaped rack 64 through its drive gear.

Claims

1. A method for automatic winding of synchronous aluminum alloy extruded wire rods, characterized in that: Includes the following steps: A. The billet obtained from hot extrusion is wound into a coil by a winding device, and the coil is arranged horizontally. B. After the wall flaps of the drum contract, they become conical, and the coil is released from the drum under the support of the hydraulic trolley. C. The hydraulic trolley transports the wire coil to the tilting frame, aligns the center hole of the wire coil with the positioning rod of the tilting frame, and inserts it. D. The flipping shaft of the flipping frame flips the flipping plate 90 degrees, changing the horizontal placement of the wire roll to the vertical placement, thus completing the winding and transportation of the wire roll. The winding device has a horizontally arranged drum (4). One end of the drum (4) is a drum wall plate (41). A through hole is provided in the middle of the drum wall plate (41), through which a core rod (48) that can be pulled out horizontally is passed. The drum (4) is formed by multiple wall petals (47) forming a cylinder. The front end of each wall petal (47) is hinged to the front end of the core rod (48) through a support rod (49). The rear end of the wall petal (47) is hinged to the end of the first limb of the three-limb rod (44) through an ear plate. A pulley (45) is installed on the second limb of the three-limb rod (44). The core rod (48) is sleeved with a conical sleeve (46). The pulley (45) contacts the conical surface of the conical sleeve (46). The third limb of the three-limb rod (44) is fixedly connected to a slider (43). The slider (43) is slidably connected to a slide rail (42) installed on the drum wall plate (41). The upper end of the truss (61) of the rotating frame is connected to the rotating shaft (62) via a bearing. The rotating frame (65) is fixedly connected to the middle of the rotating shaft (62). The rotating frame (65) is connected to the rotating disk (66) via a rotating shaft (67). Several positioning rods (68) are provided on the rotating disk (66). The horizontal bars of adjacent three-limb rods (44) are connected by a tension spring (410).

2. The method for automatic winding of synchronous aluminum alloy extruded wire rods according to claim 1, characterized in that, The head end of the core rod (48) is connected to the piston rod of the pull-out cylinder (31).

3. The method for automatic winding of synchronous aluminum alloy extruded wire rods according to claim 1, characterized in that, The roller wall panel (41) is fixedly connected to the passive gear (23), and the passive gear (23) is connected to the active gear (22) by a chain. The active gear (22) is driven by the rotating motor (21) through the gearbox. The roller wall panel (41) is fixedly connected to the sleeve (32) at the through hole. The sleeve (32) is mounted on the transverse frame (11) by a bearing. The core rod (48) passes through the center hole of the sleeve (32) and can move freely horizontally.

4. The method for automatic winding of synchronous aluminum alloy extruded wire rods according to claim 3, characterized in that, The transverse frame (11) is connected to the transverse track (16) via a sliding block. A bearing seat (15) is provided at the front end of the transverse frame (11). The bearing seat (15) is rotatably connected to the end of the lead screw (13). A wire block (14) is fixedly provided in the middle of the lower part of the transverse frame (11). The wire hole of the wire block (14) passes through the lead screw (13). The other end of the lead screw (13) is driven by the transverse motor (12).

5. The method for automatic winding of synchronous aluminum alloy extruded wire rods according to claim 1, characterized in that, The flipping shaft (62) of the flipping frame is also fixedly provided with a fan-shaped frame (63) in the middle. The fan-shaped frame (63) has an arc-shaped rack (64) on its fan-shaped edge. The flipping drive mechanism (69) is provided below the truss (61). The flipping drive mechanism (69) meshes with the arc-shaped rack (64) through its drive gear.

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