Tinned copper wire continuous stretching device and method

Abstract

The invention discloses a tinned copper wire continuous stretching device and method, and relates to the technical field of tinned copper wire stretching, the tinned copper wire continuous stretching device comprises a stretching mechanism, the stretching mechanism comprises a bottom plate, one side of the top end of the bottom plate is fixedly connected with a first reducing plate, and the side wall of the first reducing plate is fixedly connected with a second reducing plate; and one end, far away from the first reducing plate, of the second reducing plate is fixedly connected with a third reducing plate. The driving motor drives the rotating shaft to rotate, so that the rotating shaft drives the wire passing barrel to rotate, and in the rotating process of the wire passing barrel, a copper wire is wound and sleeved on the outer wall of the wire passing barrel, so that the copper wire is pulled to penetrate through the reducing hole in the rotating process of the wire passing barrel, and in the copper wire stretching process, the winding mechanism can be located behind the stretching mechanism; therefore, in the process that the copper wires are pulled by the wire passing barrel, the phenomenon that the copper wires on the outer layer extrude the copper wires on the inner layer is avoided, the phenomenon that a large number of scratches appear on the outer wall after the copper wires are produced is avoided, and the quality of the produced copper wires is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tin-coated copper wire stretching, and specifically provides a continuous stretching device and method for tin-coated copper wire. Background Art

[0002] Copper wire is a metal material with good electrical conductivity and good thermal conductivity. In daily life, copper wire is used as a conductor and is widely used in the manufacture of wires, cables, brushes, etc. During the production and processing of copper wire, in order to make the copper wire thinner and longer, it is usually necessary to use a stretching device to process the copper wire.

[0003] A continuous stretching device for tin-coated copper wire disclosed in a prior patent (Publication No.: CN113145673A) includes a machine body and a stretching assembly fixed on the machine body. A copper wire is wound around the outer ring of the stretching assembly. The device further includes an electric push rod arranged in the middle of the machine body. The movable end of the electric push rod is hinged with a cooling member, and the end of the cooling member away from the electric push rod is sleeved on the copper wire; wherein, a receiving cavity is arranged inside the cooling member, a telescopic spring is arranged inside the receiving cavity, one end of the telescopic spring is fixed on the inner wall of the cooling member, the other end of the telescopic spring is fixedly connected with an abutting block, and the part of the abutting block extending out of the receiving cavity abuts against the outer wall of the copper wire. It cools the copper wire by sleeving the cooling member on the copper wire and adopting a water-cooling heat transfer method. Moreover, during the water-cooling process, by contacting the surface of the copper wire with the abutting block arranged in the cooling member, the surface of the copper wire can be dusted, thereby improving the practicability of the continuous stretching device for tin-coated copper wire.

[0004] However, the above technical solution still has certain defects. During the stretching process of the copper wire, the stretching force exerted on the copper wire by the hydraulic rod is transmitted to the take-up reel, so that the copper wire located on the outer layer of the take-up reel will exert pressure on the copper wire located on the inner layer, resulting in scratches on the outer wall of the copper wire located on the inner layer, which affects the quality of the produced copper wire. Therefore, a continuous stretching device and method for tin-coated copper wire are proposed. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a continuous stretching device and method for tin-coated copper wire to solve the technical problems raised in the above background.

[0006] To achieve the above object, the present invention provides the following technical solutions: A continuous drawing device and method for tinned copper wire, including a drawing mechanism. The drawing mechanism includes a bottom plate. One side of the top end of the bottom plate is fixedly connected with a first diameter-reducing plate. The side wall of the first diameter-reducing plate is fixedly connected with a second diameter-reducing plate. One end of the second diameter-reducing plate away from the first diameter-reducing plate is fixedly connected with a third diameter-reducing plate. A plurality of groups of diameter-reducing holes are coaxially provided on the side walls of the first diameter-reducing plate, the second-stage diameter-reducing plate, and the third-stage diameter-reducing plate. The plurality of groups of diameter-reducing holes are evenly distributed in three columns. A rotating shaft is rotatably connected to the top end of the bottom plate. A plurality of wire passing barrels are fixedly sleeved on the outer wall of the rotating shaft. Each group of wire passing barrels is aligned with a column of diameter-reducing holes respectively. A group of copper wires are respectively sleeved on the inner walls of each column of diameter-reducing holes. Each group of copper wires is respectively sleeved on the outer wall of a group of wire passing barrels. Two driving motors are fixedly connected to the top end of the bottom plate. The output ends of the two driving motors are respectively fixedly connected to both ends of the rotating shaft. Three connecting grooves are provided on the top end of the bottom plate. A group of bidirectional threaded rods are respectively rotatably connected to the inner walls of each group of connecting grooves. Each group of bidirectional threaded rods is respectively located below a group of wire passing barrels. Two sliders are respectively threadedly connected to the outer walls of each group of bidirectional threaded rods. A group of pressing wheels are respectively rotatably connected to the top ends of each group of sliders. The pressing wheels are abutted against the outer walls of the copper wires. A plurality of material discharging ports are provided at one end of the bottom end of the bottom plate away from the first diameter-reducing plate.

[0007] As a preferred technical solution, a winding mechanism is rotatably connected to the top end of the bottom plate. The winding mechanism is located at the top of the plurality of material discharging ports. The winding mechanism includes a turning plate. A plurality of support components are fixedly connected to the top end of the turning plate. Each group of support components includes two support seats. A convex strip is fixedly connected to the position near the top end of the inner wall of each group of support seats. A plurality of oil grooves are provided at the bottom end of the inner wall of the support seat. The top end of the support seat has a certain elasticity. A plurality of ejector rods are fixedly connected to the top end of the bottom plate.

[0008] As a preferred technical solution, a group of reels are respectively rotatably sleeved inside each group of support components. One end of each reel is respectively rotatably sleeved with a group of support seats. A group of convex blocks are respectively fixedly connected to both ends of the reel. A driving shaft is provided between every two groups of reels. The driving shaft is rotatably connected to the top end of the turning plate. A group of notches are respectively provided at both ends of the driving shaft. Each group of notches is respectively sleeved on the outer wall of a group of convex blocks. A group of first rubber wheels are respectively rotatably connected to both ends of the turning plate. Each group of first rubber wheels is respectively sleeved on the outer wall of a group of convex blocks.

[0009] As a preferred technical solution, a group of gear sets are fixedly connected to the outer walls of each group of driving shafts. An input end of each group of gear sets is respectively provided with a reduction motor. The output end of the reduction motor is fixedly connected to the input end of the gear set.

[0010] As a preferred technical solution, a set of protective covers are respectively rotatably connected to the outer walls of each group of the reels. The bottom ends of the protective covers abut against the top ends of the flap plates. A plurality of elastic pieces are fixedly connected to the outer walls of the protective covers, and the ends of the plurality of elastic pieces are fixedly connected to a pressing rod.

[0011] As a preferred technical solution, a set of pressing blocks are respectively slidably connected to the outer walls of each group of the reels. A set of limiting blocks are respectively fixedly connected to both sides of the pressing blocks. Two sets of sliding grooves are provided at the connection of the reel and the pressing block. The limiting blocks are slidably connected inside the sliding grooves. Limiting grooves are provided at the bottom ends of the inner walls of the sliding grooves. A top block is slidably connected to the inner wall of the limiting block. The bottom end of the top block extends into the limiting groove. Two sets of spring pieces are fixedly connected to the top end of the top block, and the top ends of the spring pieces are fixedly connected to the inner walls of the limiting blocks.

[0012] As a preferred technical solution, a wire management mechanism is provided at the edge of the top end of the flap plate. The wire management mechanism includes a plurality of reciprocating lead screws. The plurality of reciprocating lead screws are rotatably connected to the top end of the flap plate. The plurality of reciprocating lead screws are respectively fixedly connected to adjacent reciprocating lead screws. A set of wire management blocks are respectively threadedly connected to the outer walls of each group of the reciprocating lead screws. Through holes are formed through the side walls of the wire management blocks. The through holes are sleeved outside the copper wires. A set of guide rods are respectively slidably sleeved on the top ends of each group of the wire management blocks. The guide rods are fixedly connected to the top end of the flap plate and are located above the reciprocating lead screws.

[0013] As a preferred technical solution, two sets of clamping heads are hinged to the side walls of the wire management blocks. A set of connecting rods are respectively sleeved on the bottom ends of each group of the clamping heads. An abutting rod is sleeved at the ends of the two sets of connecting rods. The abutting rod is slidably connected to the side wall of the wire management block. Ball heads are provided at the connections of the two ends of the connecting rods with the abutting rod and the clamping heads. Two sets of elastic wire clamping pieces are fixedly connected to the side walls of each group of the wire management blocks.

[0014] As a preferred technical solution, a set of second rubber wheels are respectively fixedly connected to the ends of the two sets of reciprocating lead screws located at the edge. Each set of the second rubber wheels abuts against the outer wall of a set of first rubber wheels.

[0015] As a preferred technical solution, the method is as follows:

[0016] I. Threading

[0017] During the initial stretching, pass the thinner copper wire through a plurality of reduced-diameter holes, then wind the thinner copper wire around the outer wall of the wire passing barrel, then pass the thinner copper wire through the through hole, and finally fix the end of the thinner copper wire to the outer wall of the reel through the pressing block;

[0018] II. Stretching

[0019] Weld one end of the thinner copper wire that has not passed through the diameter-reducing hole to the copper wire to be stretched. Then, drive the rotating shaft to rotate through the driving motor, so that the wire passing barrel pulls the copper wire through the diameter-reducing hole. As a result, under the extrusion of the diameter-reducing hole, the copper wire to be diameter-reduced is stretched;

[0020] III. Copper wire winding

[0021] The reduction motor drives the reel to rotate, so that the rotating shaft winds up the stretched copper wire. During the winding process, the reciprocating screw rod rotates continuously, so that the wire arranging block continuously adjusts the angle of the copper wire, enabling the copper wire to be evenly wound around the outer wall of the reel.

[0022] In summary, the present invention mainly has the following beneficial effects:

[0023] 1. In the present invention, the driving motor drives the rotating shaft to rotate, so that the rotating shaft drives the wire passing barrel to rotate. During the rotation of the wire passing barrel, since the copper wire is wound around and sleeved on the outer wall of the wire passing barrel, the wire passing barrel pulls the copper wire through the diameter-reducing hole during rotation. By using the fact that the diameter-reducing hole is smaller than the diameter of the copper wire, the copper wire is stretched. During the stretching of the copper wire, the winding mechanism is located behind the stretching mechanism, so that during the pulling of the copper wire by the wire passing barrel, the phenomenon that the outer copper wire squeezes the inner copper wire will not occur, avoiding the phenomenon that a large number of scratches appear on the outer wall of the produced copper wire and improving the quality of the produced copper wire;

[0024] 2. In the present invention, during the winding process, the protective cover is sleeved outside the reel, and after the reel is full of copper wire, the pressing rod presses on the outside of the copper wire, so that the copper wire will not be scattered. During the winding process, the pressing block and the reel clamp the end of the copper wire. The pressing block can be separated from and connected to the reel conveniently and quickly, improving the efficiency of the preliminary preparation work for stretching the copper wire. And by flipping the flap, the reel can be quickly separated from the support seat, enabling the quickly collection of the full reel after winding, reducing the work efficiency;

[0025] 3. In the present invention, the reel drives the reciprocating screw rod to rotate, so that the reciprocating screw rod drives the wire arranging block to reciprocate, so that the wire passing hole reciprocally pushes and pulls the copper wire, making the winding of the copper wire by the reel more uniform. Moreover, the two sets of chucks and the wire clamping pieces are respectively located on both sides of the wire arranging block, so that after the chuck cuts off the copper wire, the end of the copper wire will not be scattered everywhere but be clamped by the wire clamping piece, enabling the more convenient and quick finding of the end of the copper wire when the end of the copper wire is clamped between the reel and the pressing block in the subsequent process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the overall structural schematic diagram of the present invention;

[0027] Figure 2Explosion structure schematic diagram of parts such as the wire passing head of the present invention;

[0028] Figure 3 Schematic diagram of the structure of the first diameter-reducing plate, the second diameter-reducing plate and the third diameter-reducing plate of the present invention;

[0029] Figure 4 Schematic diagram of the structure of the winding mechanism and the wire arranging mechanism of the present invention;

[0030] Figure 5 For the present invention Figure 4 Schematic diagram of the structure in the state where the middle scroll is removed;

[0031] Figure 6 Schematic diagram of the structure of the support assembly of the present invention;

[0032] Figure 7 First schematic diagram of the wire arranging block of the present invention;

[0033] Figure 8 Second schematic diagram of the wire arranging block of the present invention;

[0034] Figure 9 Schematic diagram of the structure of the scroll and the protective cover of the present invention;

[0035] Figure 10 Schematic diagram of the separated state of the scroll and the pressing block of the present invention;

[0036] Figure 11 Schematic diagram of the cross-section of the scroll of the present invention;

[0037] Figure 12 For the present invention Figure 11 Enlarged structure schematic diagram at position A.

[0038] In the figure: 1. Tensile mechanism; 2. Winding mechanism; 3. Wire arranging mechanism;

[0039] 101. Base plate; 102. First diameter-reducing plate; 103. Second diameter-reducing plate; 104. Third diameter-reducing plate; 105. Diameter-reducing hole; 106. Rotating shaft; 107. Wire passing barrel; 108. Driving motor; 109. Copper wire; 110. Connecting groove; 111. Bidirectional threaded rod; 112. Slide block; 113. Pressing wheel; 114. Material discharging port;

[0040] 201. Flap; 202. Support assembly; 2021. Support seat; 2022. Ridge; 2023. Oil groove; 203. Scroll; 204. Protrusion; 205. Driving shaft; 206. Notch; 207. Gear set; 208. Reduction motor; 209. Protective cover; 210. Elastic sheet; 211. Pressing rod; 212. Pressing block; 213. Limiting block; 214. Chute; 215. Limiting groove; 216. Top block; 217. Spring sheet; 218. Top rod;

[0041] 301, Reciprocating lead screw; 302, Wire arranging block; 303, Wire passing hole; 304, Guide rod; 305, Wire clamping piece; 306, Chuck; 307, Abutting rod; 308, Connecting rod; 309, First rubber wheel; 310, Second rubber wheel. Specific embodiments

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0043] The embodiments of the present invention will be described below according to the overall structure of the present invention.

[0044] A tin-plated copper wire continuous stretching device and method, as Figures 1 to 12 shown, includes a stretching mechanism 1, the stretching mechanism 1 includes a bottom plate 101, a first diameter-reducing plate 102 is fixedly connected to one side of the top end of the bottom plate 101, a second diameter-reducing plate 103 is fixedly connected to the side wall of the first diameter-reducing plate 102, a third diameter-reducing plate 104 is fixedly connected to the end of the second diameter-reducing plate 103 away from the first diameter-reducing plate 102, a plurality of groups of diameter-reducing holes 105 are coaxially opened on the side walls of the first diameter-reducing plate 102, the second-stage diameter-reducing plate and the third-stage diameter-reducing plate, and the plurality of groups of diameter-reducing holes 105 are evenly distributed in three columns. A rotating shaft 106 is rotatably connected to the top end of the bottom plate 101, a plurality of groups of wire passing barrels 107 are fixedly sleeved on the outer wall of the rotating shaft 106, each group of wire passing barrels 107 is aligned with a column of diameter-reducing holes 105 respectively, a group of copper wires 109 are respectively sleeved on the inner walls of each column of diameter-reducing holes 105, and each group of copper wires 109 are respectively sleeved on the outer wall of a group of wire passing barrels 107. Two driving motors 108 are fixedly connected to the top end of the bottom plate 101, and the output ends of the two driving motors 108 are respectively fixedly connected to both ends of the rotating shaft 106. Three connecting grooves 110 are opened on the top end of the bottom plate 101, a group of bidirectional threaded rods 111 are respectively rotatably connected to the inner walls of each group of connecting grooves 110, each group of bidirectional threaded rods 111 are respectively located below a group of wire passing barrels 107, two sliders 112 are respectively threadedly connected to the outer walls of each group of bidirectional threaded rods 111, a group of pressure wheels 113 are respectively rotatably connected to the top ends of each group of sliders 112, and the pressure wheels 113 abut against the outer wall of the copper wire 109. A plurality of discharging ports 114 are opened at the bottom end of the bottom plate 101 away from the first diameter-reducing plate 102.

[0045] The driving motor 108 drives the rotating shaft 106 to rotate, causing the rotating shaft 106 to drive the wire passing barrel 107 to rotate. During the rotation of the wire passing barrel 107, since the copper wire 109 is wound around and sleeved on the outer wall of the wire passing barrel 107, the rotation of the wire passing barrel 107 pulls the copper wire 109 to pass through the reduced diameter hole 105. By using the fact that the reduced diameter hole 105 is smaller than the diameter of the copper wire 109, the copper wire 109 is stretched. When preparing for the stretching work on the front seat, the distance between the two groups of sliders 112 is increased by rotating the bidirectional threaded rod 111, so that the copper wire 109 can be more conveniently wound around the outer wall of the wire passing barrel 107. Then, the bidirectional threaded rod 111 is rotated in the reverse direction, so that the pressing wheel 113 can press the copper wire 109 against the outer wall of the wire passing barrel 107, avoiding slipping between the wire passing barrel 107 and the copper wire 109.

[0046] Please refer specifically to Figure 3 、 Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 9 、 Figure 10 、 Figure 11 and Figure 12, a winding mechanism 2 is rotatably connected to the top end of the bottom plate 101. The winding mechanism 2 is located at the top of a plurality of material discharging openings 114. The winding mechanism 2 includes a flap 201. A plurality of support assemblies 202 are fixedly connected to the top end of the flap 201. Each support assembly 202 includes two support seats 2021. A rib 2022 is fixedly connected to the inner wall of each support seat 2021 near the top end. A plurality of oil grooves 2023 are formed in the bottom end of the inner wall of the support seat 2021. The top end of the support seat 2021 has a certain elasticity. A plurality of ejector rods 218 are fixedly connected to the top end of the bottom plate 101. A reel 203 is rotatably sleeved inside each support assembly 202. Two support seats 2021 are respectively rotatably sleeved at both ends of the reel 203. A bump 204 is fixedly connected to each end of the reel 203. A drive shaft 205 is arranged between every two reels 203. The drive shaft 205 is rotatably connected to the top end of the flap 201. A notch 206 is formed at each end of the drive shaft 205. Each notch 206 is sleeved on the outer wall of a bump 204. A first rubber wheel 309 is rotatably connected to each end of the flap 201. Each first rubber wheel 309 is sleeved on the outer wall of a bump 204. A gear set 207 is fixedly connected to the outer wall of each drive shaft 205. A reduction motor 208 is arranged at the input end of each gear set 207. The output end of the reduction motor 208 is fixedly connected to the input end of the gear set 207. A protective cover 209 is rotatably connected to the outer wall of each reel 203. The bottom end of the protective cover 209 abuts against the top end of the flap 201. A plurality of elastic pieces 210 are fixedly connected to the outer wall of the protective cover 209. A pressure rod 211 is fixedly connected to the ends of the plurality of elastic pieces 210. A pressure block 212 is slidably connected to the outer wall of each reel 203. A limiting block 213 is fixedly connected to each side of the pressure block 212. Two chutes 214 are arranged at the connection of the reel 203 and the pressure block 212. The limiting block 213 is slidably connected inside the chute 214. A limiting groove 215 is formed in the bottom end of the inner wall of the chute 214. A top block 216 is slidably connected to the inner wall of the limiting block 213. The bottom end of the top block 216 extends into the limiting groove 215. Two spring pieces 217 are fixedly connected to the top end of the top block 216. The top end of the spring piece 217 is fixedly connected to the inner wall of the limiting block 213.

[0047] The reduction motor 208 drives the drive shaft 205 to rotate through the gear set 207. During the rotation of the drive shaft 205, the lug 204 is driven to rotate through the notch 206, so that the lug 204 drives the reel 203 to rotate. The bottom end of the protective cover 209 abuts against the top end of the flap 201, so the protective cover 209 will not rotate with the reel 203. Before stretching, by horizontally pushing the pressing block 212, the top block 216 slides out of the limiting groove 215, and then pulling the pressing block 212 upward, the limiting block 213 slides out along the sliding groove 214, so that the pressing block 212 is separated from the reel 203. Then, the end of the copper wire 109 is placed on the outer wall of the reel 203, and then the pressing block 212 is pushed, so that the pressing block 212 drives the limiting block 213 to slide into the sliding groove 214, so that the pressing block 212 presses the end of the copper wire 109 against the outer wall of the reel 203. Then, the pressing block 212 is horizontally pushed, so that the top block 216 is aligned with the limiting groove 215. At this time, the top block 216 slides into the limiting groove 215 under the elastic force of the spring piece 217. At this time, the copper wire 109 is clamped by the reel 203 and the pressing block 212, so that the copper wire 109 can be wound when the reel 203 rotates. After the outer wall of the reel 203 is full of the copper wire 109, at this time, the pressing rod 211 presses against the outer wall of the copper wire 109, so that the copper wire 109 will not be scattered on the outer wall of the reel 203. By flipping the flap 201, the entire winding mechanism 2 and the wire arranging mechanism 3 are flipped, so that the reel 203 is aligned with the blanking port 114, and the top rod 218 abuts against the end of the support seat 2021. Then, as the flap 201 is flipped, the end of the support group is bent under the block of the top rod 218. At this time, the convex strip 2022 cannot block the reel 203. At this time, the reel 203 falls and drops from the blanking port 114, so that the reel 203 can be conveniently unloaded after being full of the copper wire 109.

[0048] Please refer particularly to Figure 1 、 Figure 4 、 Figure 5 、 Figure 7 and Figure 8, a wire arranging mechanism 3 is arranged at the top edge of the flap 201. The wire arranging mechanism 3 includes a plurality of reciprocating lead screws 301. The plurality of reciprocating lead screws 301 are rotatably connected to the top of the flap 201. The plurality of reciprocating lead screws 301 are respectively fixedly connected to adjacent reciprocating lead screws 301. A wire arranging block 302 is threadedly connected to the outer wall of each reciprocating lead screw 301. A wire passing hole 303 is formed through the side wall of the wire arranging block 302. The wire passing hole 303 is sleeved outside the copper wire 109. A guiding rod 304 is slidably sleeved at the top of each wire arranging block 302. The guiding rod 304 is fixedly connected to the top of the flap 201 and is located above the reciprocating lead screw 301. Two clamping heads 306 are hinged to the side wall of the wire arranging block 302. A connecting rod 308 is sleeved at the bottom end of each clamping head 306. An abutting rod 307 is sleeved at the ends of the two connecting rods 308. The abutting rod 307 is slidably connected to the side wall of the wire arranging block 302. Ball heads are arranged at the joints of the two ends of the connecting rod 308 with the abutting rod 307 and the clamping head 306. Two elastic wire clamping pieces 305 are fixedly connected to the side wall of each wire arranging block 302. One end of each of the reciprocating lead screws 301 located at the edge is fixedly connected to a second rubber wheel 310. Each second rubber wheel 310 abuts against the outer wall of a first rubber wheel 309.

[0049] During the process of the reel 203 winding the copper wire 109, the reel 203 drives the first rubber wheel 309 to rotate. The first rubber wheel 309 drives the second rubber wheel 310 to rotate. The second rubber wheel 310 drives the reciprocating lead screw 301 to rotate, so that the reciprocating lead screw 301 drives the wire arranging block 302 to reciprocate on the outer wall of the guiding rod 304. During the reciprocating sliding of the wire arranging block 302, the wire passing hole 303 reciprocally pushes the copper wire 109, so that the copper wire 109 can be evenly wound on the outer wall of the reel 203. During the flipping of the flap 201, the copper wire 109 slides into the wire clamping piece 305. And during the flipping of the flap 201, the abutting rod 307 contacts the inner wall of the bottom plate 101, so that the abutting rod 307 is pushed and slides on the side wall of the wire arranging block 302 during the flipping of the flap 201. During the sliding of the abutting rod 307, the two clamping heads 306 are pushed to flip towards the middle through the connecting rod 308, so that the clamping heads 306 clamp and break the copper wire 109, thus making the blanking more convenient and improving the blanking efficiency. And since the copper wire 109 has slid into the wire clamping piece 305 before being clamped and broken, after the copper wire 109 is clamped and broken and the reel 203 is separated from the support seat 2021, the end of the remaining unrolled copper wire 109 is clamped by the wire clamping piece 305. So after the flap 201 is reset later, the empty reel 203 is pushed into the support seat 2021, and then the end of the copper wire 109 can be quickly found, making it more convenient to fix the copper wire 109 on the reel 203.

[0050] When in use, the method is as follows:

[0051] I. Threading

[0052] During the initial stretching, a thinner copper wire 109 is passed through multiple sets of reduced-diameter holes 105, then the thinner copper wire 109 is wound around the outer wall of the wire passing barrel 107, then the thinner copper wire 109 is passed through the wire passing hole 303, and finally the end of the thinner copper wire 109 is fixed to the outer wall of the reel 203 through the pressing block 212;

[0053] II. Stretching

[0054] One end of the thinner copper wire 109 that has not passed through the reduced-diameter hole 105 is welded to the copper wire 109 to be stretched. Then, the driving motor 108 drives the rotating shaft 106 to rotate, so that the wire passing barrel 107 pulls the copper wire 109 through the reduced-diameter hole 105. Thus, under the extrusion of the reduced-diameter hole 105, the copper wire 109 to be reduced in diameter is stretched;

[0055] III. Rewinding of the copper wire 109

[0056] The reduction motor 208 drives the reel 203 to rotate, so that the rotating shaft 106 rewinds the stretched copper wire 109. During the rewinding process, the reciprocating lead screw 301 rotates continuously, so that the wire arranging block 302 continuously adjusts the angle of the copper wire 109, so that the copper wire 109 can be evenly wound around the outer wall of the reel 203. The parts not involved in this device are the same as the prior art or can be implemented by using the prior art.

[0057] Although the embodiments of the present invention have been shown and described, the specific embodiments are only explanations of the present invention, and they are not limitations of the invention. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can, without departing from the principles and purposes of the present invention, make modifications, substitutions and variations that do not contribute creatively to the embodiments as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A continuous drawing device and method for tinned copper wire (109), comprising a drawing mechanism (1), wherein: The stretching mechanism (1) includes a bottom plate (101). One side of the top end of the bottom plate (101) is fixedly connected with a first diameter-reducing plate (102). The side wall of the first diameter-reducing plate (102) is fixedly connected with a second diameter-reducing plate (103). One end of the second diameter-reducing plate (103) far from the first diameter-reducing plate (102) is fixedly connected with a third diameter-reducing plate (104). A plurality of sets of diameter-reducing holes (105) are coaxially formed in the side walls of the first diameter-reducing plate (102), the second-stage diameter-reducing plate, and the third-stage diameter-reducing plate. The plurality of sets of diameter-reducing holes (105) are evenly distributed in three columns. A rotating shaft (106) is rotatably connected to the top end of the bottom plate (101). A plurality of sets of wire passing barrels (107) are fixedly sleeved on the outer wall of the rotating shaft (106). Each set of wire passing barrels (107) is aligned with a column of diameter-reducing holes (105) respectively. A set of copper wires is sleeved in the inner wall of each column of diameter-reducing holes (105). Each set of copper wires is sleeved on the outer wall of a set of wire passing barrels (107). Two sets of driving motors (108) are fixedly connected to the top end of the bottom plate (101). The output ends of the two sets of driving motors (108) are respectively fixedly connected to both ends of the rotating shaft (106). Three sets of connecting grooves (110) are formed in the top end of the bottom plate (101). A set of bidirectional threaded rods (111) is rotatably connected to the inner wall of each set of connecting grooves (110). Each set of bidirectional threaded rods (111) is located below a set of wire passing barrels (107). Two sets of sliders (112) are respectively threadedly connected to the outer walls of each set of bidirectional threaded rods (111). A set of pressing wheels (113) is rotatably connected to the top end of each set of sliders (112). The pressing wheels (113) abut against the outer wall of the copper wire. A plurality of discharging ports (114) are formed in the bottom end of the bottom plate (101) far from the first diameter-reducing plate (102).

2. The continuous drawing device and method of a tinned copper wire (109) according to claim 1, characterized in that: A winding mechanism (2) is rotatably connected to the top end of the bottom plate (101). The winding mechanism (2) is located above the plurality of discharging ports (114). The winding mechanism (2) includes a flap (201). A plurality of sets of support components (202) are fixedly connected to the top end of the flap (201). Each set of support components (202) includes two support seats (2021). A convex strip (2022) is fixedly connected to the inner wall of each support seat (2021) near the top end. A plurality of oil grooves (2023) are formed in the bottom end of the inner wall of the support seat (2021). The top end of the support seat (2021) has a certain elasticity. A plurality of ejector rods (218) are fixedly connected to the top end of the bottom plate (101).

3. The continuous stretching device and method for a tinned copper wire (109) according to claim 2, characterized in that: A set of reels (203) are respectively rotatably sleeved inside each set of the support components (202). A set of support seats (2021) are respectively rotatably sleeved at both ends of the reel (203). A set of bumps (204) are respectively fixedly connected to both ends of the reel (203). A set of drive shafts (205) are respectively arranged between every two sets of reels (203). The drive shaft (205) is rotatably connected to the top end of the flap (201). A set of notches (206) are respectively opened at both ends of the drive shaft (205). Each set of the notches (206) is respectively sleeved on the outer wall of a set of bumps (204). A set of first rubber wheels (309) are respectively rotatably connected to both ends of the flap (201). Each set of the first rubber wheels (309) is respectively sleeved on the outer wall of a set of bumps (204).

4. A continuous drawing device and method for a tinned copper wire (109) according to claim 3, characterized in that: A set of gear sets (207) are fixedly connected to the outer wall of each set of the drive shafts (205). A set of reduction motors (208) are respectively arranged at the input ends of each set of the gear sets (207). The output end of the reduction motor (208) is fixedly connected to the input end of the gear set (207).

5. A continuous drawing device and method for a tinned copper wire (109) according to claim 3, characterized in that: A set of protective covers (209) are respectively rotatably connected to the outer wall of each set of the reels (203). The bottom end of the protective cover (209) abuts against the top end of the flap (201). A plurality of elastic sheets (210) are fixedly connected to the outer wall of the protective cover (209). The ends of the plurality of elastic sheets (210) are fixedly connected to a pressure rod (211).

6. A continuous drawing device and method for a tinned copper wire (109) according to claim 3, characterized in that: A set of pressure blocks (212) are respectively slidably connected to the outer wall of each set of the reels (203). A set of limit blocks (213) are respectively fixedly connected to both sides of the pressure block (212). Two sets of chutes (214) are arranged at the connection part of the reel (203) and the pressure block (212). The limit block (213) is slidably connected inside the chute (214). A limit groove (215) is opened at the bottom end of the inner wall of the chute (214). A top block (216) is slidably connected to the inner wall of the limit block (213). The bottom end of the top block (216) extends into the limit groove (215). Two sets of spring sheets (217) are fixedly connected to the top end of the top block (216). The top end of the spring sheet (217) is fixedly connected to the inner wall of the limit block (213).

7. A continuous drawing device and method for a tinned copper wire (109) according to claim 2, characterized in that: A wire arranging mechanism (3) is provided at the top edge of the flap (201). The wire arranging mechanism (3) includes multiple sets of reciprocating lead screws (301). The multiple sets of reciprocating lead screws (301) are rotatably connected to the top of the flap (201), and the multiple sets of reciprocating lead screws (301) are fixedly connected to adjacent reciprocating lead screws (301) respectively. A wire arranging block (302) is threadedly connected to the outer wall of each set of reciprocating lead screws (301). A wire passing hole (303) is formed through the side wall of the wire arranging block (302). The wire passing hole (303) is sleeved outside the copper wire. A guiding rod (304) is slidably sleeved on the top of each set of wire arranging blocks (302). The guiding rod (304) is fixedly connected to the top of the flap (201), and the guiding rod (304) is located above the reciprocating lead screw (301).

8. A continuous drawing device and method for a tinned copper wire (109) according to claim 7, characterized in that: Two clamping heads (306) are hinged to the side wall of the wire arranging block (302). A connecting rod (308) is sleeved at the bottom end of each set of clamping heads (306). An abutting rod (307) is sleeved at the ends of the two connecting rods (308). The abutting rod (307) is slidably connected to the side wall of the wire arranging block (302). Ball heads are provided at the joints of the two ends of the connecting rod (308) with the abutting rod (307) and the clamping head (306). Two elastic wire clamping pieces (305) are fixedly connected to the side wall of each set of wire arranging blocks (302).

9. A continuous drawing device and method for a tinned copper wire (109) according to claim 7, characterized in that: A second rubber wheel (310) is fixedly connected to the end of each of the two sets of reciprocating lead screws (301) located at the edge. Each set of second rubber wheels (310) abuts against the outer wall of a first rubber wheel (309).

10. A stretching method for a stretching device of a tinned copper wire (109) according to any one of claims 1-9, characterized in that: The method is as follows: I. Threading the wire During the initial stretching, a copper wire with a relatively small diameter is passed through multiple sets of reduced-diameter holes (105), then the thinner copper wire is wound around the outer wall of the wire passing barrel (107), then the thinner copper wire is passed through the wire passing hole (303), and finally the end of the thinner copper wire is fixed to the outer wall of the reel (203) through the pressing block (212). II. Stretching One end of the thinner copper wire that has not passed through the reduced-diameter hole (105) is welded to the copper wire to be stretched, and then the driving motor (108) drives the rotating shaft (106) to rotate, so that the wire passing barrel (107) pulls the copper wire through the reduced-diameter hole (105), so that under the extrusion of the reduced-diameter hole (105), the copper wire to be reduced in diameter is stretched. III. Copper wire winding The reduction motor (208) drives the reel (203) to rotate, so that the rotating shaft (106) winds the stretched copper wire. During the winding process, the reciprocating lead screw (301) rotates continuously, so that the wire arranging block (302) continuously adjusts the angle of the copper wire, so that the copper wire can be evenly wound around the outer wall of the reel (203).

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