Intelligent copper wire drawing machine and copper wire structure thereof

Abstract

The invention relates to the technical field of copper wire drawing machines, and discloses an intelligent copper wire drawing machine and a copper wire structure thereof.The intelligent copper wire drawing machine comprises a machine base, a plurality of sets of wire drawing units are distributed at the upper end of the machine base at equal intervals, thick copper wires are guided out of a pay-off device and enter the wire drawing units, and each set of wire drawing unit comprises a wire drawing base; a wire drawing liquid groove and a mold groove are respectively formed in the wire drawing seat from left to right, and the wire drawing liquid groove and the mold groove are isolated by a partition plate fixed in the middle of the wire drawing seat. The constant-speed motor is started, the liquid drainage inner cover does circular motion in the cylinder cavity through a series of transmission, centrifugal force is generated to enable mixed liquid to be thrown out through the liquid drainage inner opening and to be guided out of the liquid drainage outer opening in the bottom of the injection outer cylinder at random, the mixed liquid in the liquid drainage inner cover can be completely drained without residues under the action of the centrifugal force, and the cleaning effect is remarkably improved; and meanwhile, during spraying, the liquid discharging inner opening and the sealing gasket are attached and sealed, a negative pressure environment is formed in the cylinder cavity, and horizontal movement of the wire drawing liquid is facilitated.

Description

Technical Field

[0001] This invention relates to the field of copper wire drawing machine technology, and in particular to an intelligent copper wire drawing machine and its copper wire structure. Background Technology

[0002] Wire drawing machines are key pieces of equipment widely used in the metal processing industry. Their core function is to reduce the diameter, improve the surface finish, or enhance the mechanical properties of metal wires, bars, or tubes by stretching them through one or more gradually decreasing die holes. The wire drawing process is based on the principle of metal plastic deformation. Under strong tensile force, the material is forcibly pulled through a die hole with a diameter slightly smaller than its original diameter. After passing through the die, the cross-sectional area of ​​the material is permanently reduced, and its length increases. At the same time, its internal grain structure is aligned along the stretching direction, thereby improving its strength, hardness, and surface quality. Wire drawing machines mainly include a wire feeding device, a wire taking-up device, a die, and a lubrication and cooling system.

[0003] Existing copper wire drawing machines have several technical defects. First, the feeding, disassembly, and unloading of a single take-up drum are all done manually, resulting in low automation and poor stability during winding. Second, copper wire drawing generates impurities such as copper powder and burrs, which are difficult to clean and leave residues after cleaning, affecting subsequent drawing processes. Third, the grooving dies are currently installed manually on the mold. Because the dies are subjected to huge radial pressure and friction during use, they are prone to cracking, wear, or blockage, resulting in a very short mold life and frequent replacement. The current manual replacement method is time-consuming and labor-intensive, and has poor sealing and shock resistance.

[0004] In summary, considering that existing facilities cannot meet the needs of work, we propose an intelligent copper wire drawing machine and its copper wire structure. Summary of the Invention

[0005] The main objective of this invention is to provide an intelligent copper wire drawing machine and its copper wire structure, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A copper wire structure includes an intermediate copper wire, which is made from coarse copper wire through a drawing process. The surface of the intermediate copper wire has at least one set of copper wire grooves, preferably 1-3 sets, and the copper wire grooves are preferably rectangular or semi-circular.

[0007] As a preferred embodiment of the intelligent copper wire drawing machine of the present invention, the intelligent copper wire drawing machine includes a base, and a plurality of drawing units are equidistantly distributed on the upper end of the base. The number of drawing units is preferably 3-8. A wire feeding device is provided on the left side of the base. The thick copper wire is led out from the wire feeding device and enters the drawing unit. Each drawing unit includes a drawing seat. The drawing seat has a drawing liquid tank and a mold tank respectively opened from left to right. The drawing liquid tank and the mold tank are separated by a partition fixed in the middle of the drawing seat. A liquid guide port is opened through the partition. The number of liquid guide ports is preferably 2. The liquid guide ports are flush with the bottom of the mold tank. A fine filter screen is installed on the liquid guide ports.

[0008] In a preferred embodiment of the intelligent copper wire drawing machine of the present invention, two sets of auxiliary drive wheels acting on the intermediate copper wire are provided in the middle position of the drawing liquid tank. The two sets of auxiliary drive wheels are connected and fixed upward by a positioning wheel platform and a second support plate. A first guide wheel and a second guide wheel acting on the intermediate copper wire are installed in the drawing liquid tank from left to right. A third guide wheel acting on the intermediate copper wire is installed in the middle position of the top of the partition plate. A fourth guide wheel and a fifth guide wheel acting on the intermediate copper wire are installed in the right end of the mold groove from bottom to top.

[0009] As a preferred embodiment of the intelligent copper wire drawing machine of the present invention, an outer mold base is provided at the middle position of the mold groove. The outer mold base is connected to the bottom of the mold groove by a support frame. An installation port is opened at the middle position of the inner mold base. An inner mold that acts on the intermediate copper wire is installed in the installation port. The inner mold has a chamfered surface, a guide surface, a pressing surface and a chamfered surface arranged sequentially from left to right. The number of chamfered surfaces is 2 sets.

[0010] As a preferred embodiment of the intelligent copper wire drawing machine of the present invention, wherein: injection outer cylinders are provided on both the left and right sides of the outer mold base and are sleeved on the mounting port; the injection outer cylinder has a cavity inside; a wire hole communicating with the cavity is provided at the middle position of the left end of the injection outer cylinder; an annular spray head is fixed at the left position inside the cavity; a number of spray holes acting on the inner mold are evenly distributed on the annular spray head; the number of spray holes is preferably 4-16; and a drain outlet is provided at the bottom of the injection outer cylinder.

[0011] In a preferred embodiment of the intelligent copper wire drawing machine of the present invention, a drain cover is rotatably disposed on the right side of the cylinder cavity. The left end of the drain cover is connected to the cavity wall of the cylinder cavity by a positioning bearing. An external gear sleeve is sleeved on the outer side of the right end of the drain cover. A drive gear is meshed on the outer side of the external gear sleeve. The drive gear is sleeved on the output shaft of a uniform speed motor. The uniform speed motor is installed inside the motor housing. The motor housing is connected to the outer side of the injection outer cylinder. A drain port is opened on the cover of the drain cover. A sealing gasket acting on the drain port is installed on the inner wall of the cylinder cavity.

[0012] In a preferred embodiment of the intelligent copper wire drawing machine of the present invention, a first support plate is installed inside the mold groove and above the outer mold base. A temporary liquid storage tank is mounted on the first support plate. A double-hole connector is installed at the bottom of the temporary liquid storage tank. Two sets of injection pipes are installed on the double-hole connector. The two sets of injection pipes extend downward and are respectively connected to an annular spray head. An inlet pipe is connected to the upper end of the temporary liquid storage tank. A horizontal pipe is connected to the lower end of the inlet pipe extending outward. The horizontal pipe is installed on the upper surface of the second support plate. Liquid pumps are symmetrically distributed at both ends of the horizontal pipe. The liquid pumps extend downward into the bottom of the drawing liquid tank using the liquid pumping pipe.

[0013] In a preferred embodiment of the intelligent copper wire drawing machine of the present invention, a circular drum limiting seat is provided on the right side of the machine base. A copper wire adjuster acting on the intermediate copper wire is provided between the circular drum limiting seat and a group of drawing units on the right. A shock-absorbing frame is provided at the bottom of the circular drum limiting seat. A feeding channel is connected to the right side of the circular drum limiting seat. A connecting interface communicating with the feeding channel is opened at the middle of the right side of the circular drum limiting seat. The connecting interface is connected to the drum positioning groove. A conveyor is installed inside the feeding channel. A take-up drum is transported on the conveyor belt.

[0014] As a preferred embodiment of the intelligent copper wire drawing machine of the present invention, an annular directional wheel is rotatably arranged in the middle position of the inner side of the circular limit seat of the drum. Short shafts are symmetrically welded on both sides of the middle part of the annular directional wheel. Each set of short shafts is connected to the circular limit seat of the drum by a first bearing seat. A large gear is sleeved on one set of short shafts. A small gear is meshed on one side of the large gear. The small gear is sleeved on the servo motor.

[0015] In a preferred embodiment of the intelligent copper wire drawing machine of the present invention, four sets of drum positioning grooves are evenly provided on the surface of the annular directional wheel. A limiting track acting on the take-up drum is provided inside the positioning groove. A drawing port communicating with the drum positioning groove is provided at the upper end of the drum circular limiting seat. A portion of the take-up drum of the drum positioning groove extends into the drawing port to connect with the intermediate copper wire for drawing. A discharge port communicating with the drum positioning groove is provided at the lower end of the drum circular limiting seat.

[0016] In a preferred embodiment of the intelligent copper wire drawing machine of the present invention, the following features are provided: symmetrical storage limiting frames are fixed on both sides of the circular drum limiting seat near the upper end; each set of storage limiting frames contains a movably arranged winding displacement seat; symmetrical grooves are provided on the winding displacement seat; guide plates extending into the grooves are installed inside the storage limiting frame; a winding shaft is rotatably arranged inside the winding displacement seat; the winding shaft passes through the shaft hole on the circular drum limiting seat and is inserted into the connecting groove of the take-up drum; a winding motor is installed in one set of winding displacement seats; and a hydraulic telescopic rod is connected to the end of both sets of winding displacement seats away from the circular drum limiting seat; the hydraulic telescopic rod extends horizontally outward from the inside of the hydraulic cylinder; and the hydraulic cylinder is in a horizontal positioning state.

[0017] In a preferred embodiment of the intelligent copper wire drawing machine of the present invention, a cutting edge is provided on the guide surface of a portion of the drawing unit, the cutting edge being through which a grooving die passes. The number of grooving dies is preferably 1-3 sets. The grooving die acts on the surface of the intermediate copper wire to form a copper wire groove. A die holder is connected to the upper end of the grooving die. Several sets of positioning holes are provided through the inside of the die holder. Two sets of sealing oil bladders are fitted to the outside of each set of die holders. The sealing oil bladders are located inside the heat collection sleeve, and the heat collection sleeve is fixed inside the outer die holder.

[0018] In a preferred embodiment of the intelligent copper wire drawing machine of the present invention, the tool holder is installed in the tool changing mechanism, the tool changing mechanism includes a lifting platform, and screw seats are symmetrically installed on both sides of the lifting platform. A screw nut sleeve acting on the screw is installed inside the screw seat. There are two sets of screws distributed on both sides of the lifting platform. The upper and lower ends of the screws are connected to the inner wall of the outer mold seat through a second bearing seat. The upper ends of the two sets of screws are fitted with synchronous sprockets. The two sets of synchronous sprockets are connected by a chain for transmission. One set of screws extends upward and is connected to a screw motor through a coupling.

[0019] In a preferred embodiment of the intelligent copper wire drawing machine of the present invention: a control cylinder is vertically installed at the upper part of the interior of the lifting platform; a cylinder connecting rod is movably installed downward from the interior of the control cylinder; a step block is installed at the lower end of the cylinder connecting rod; insert strips are symmetrically arranged on both sides of the step block; a moving groove is opened downward inside the lifting platform; two sets of moving seats are movably arranged in the moving groove; each set of moving seats has a push-pull sliding groove on its inner inclined surface for insert strips to be inserted; the side of the moving seat away from the push-pull sliding groove is connected to the inner wall of the moving groove by a return spring; limit sliders are installed at both ends of the moving seat; a limit slide rail is provided on the groove wall of the moving groove for the movement of the limit sliders; a clamping blade acting on the cutter holder is connected to the lower end of each set of moving seats; one set of clamping blades is fixed with a plug that extends into the corresponding positioning socket; the number of plugs is preferably 2-4 sets.

[0020] In a preferred embodiment of the intelligent copper wire drawing machine of the present invention, an operating chamber is provided inside the outer mold base, and a sealing door is movably installed on the outer surface of the operating chamber.

[0021] This invention provides an intelligent copper wire drawing machine and its copper wire structure through improvements, which have the following significant improvements and advantages compared with the prior art: The design incorporates a circular limit seat for the winding drum. At the interface, the winding drum is first guided into the annular directional wheel to complete automatic docking and feeding. Then, at the wire drawing end, the winding drum is used to wind the intermediate copper wire to complete automatic winding. Finally, the copper wire roll on the drum is located at the bottom of the annular directional wheel, and the copper wire roll in the drum positioning groove is automatically released from the unloading port to complete automatic unloading. This design features a high degree of automation and saves time and effort.

[0022] The design of the drum positioning groove serves two purposes: firstly, it facilitates the loading, transportation, and unloading of the drum; secondly, it allows the drum to move within the limiting track of the positioning groove during winding, thereby assisting the winding shaft in improving winding stability.

[0023] Open the pressure tank on the temporary storage tank to release air and generate air pressure to force the drawing fluid in the temporary storage tank to flow outward. Use the double-hole connector to evenly distribute it to two sets of injection pipes. The drawing fluid is transported through the injection pipes into the annular spray head and sprayed in an annular direction around the outer side of the intermediate copper wire from several sets of spray holes. This causes the drawing fluid to move at high speed into the inner mold to wash away impurities generated by friction during the drawing process and improve the drawing quality.

[0024] The constant-speed motor is started, and through a series of transmissions, the inner drain cover moves in a circular motion in the middle of the cylinder cavity. This generates centrifugal force, which causes the mixture to be thrown out through the inner drain port and randomly discharged from the outer drain port at the bottom of the injection cylinder. Under the action of centrifugal force, the mixture in the inner drain cover can be completely drained without residue, significantly improving the cleaning effect. At the same time, during spraying, the inner drain port and the sealing gasket are sealed together, creating a negative pressure environment in the cylinder cavity, which facilitates the horizontal movement of the drawing fluid.

[0025] First, extend the cylinder connecting rod inside the control cylinder. Use two sets of inserts to slide along the push-pull slide groove and push the two sets of moving seats to move in opposite directions, thereby separating the two sets of clamping blades and releasing the damaged grooving die for easy removal. Then, retract the cylinder connecting rod. Use the two sets of inserts to slide along the push-pull slide groove and pull the two sets of moving seats to move in opposite directions. Use the two sets of clamping blades to accurately clamp the cutter holder on the grooving die. With the lifting function of the lifting platform, the grooving die is inserted into the cutting position. It is precise and adjustable, achieving the purpose of automatic die replacement, saving time and effort, and with a high degree of automation. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of a copper wire structure according to the present invention; Figure 2 This is a schematic diagram of the overall structure of the intelligent copper wire drawing machine of the present invention from one direction; Figure 3 This is a schematic diagram of the overall structure of the intelligent copper wire drawing machine of the present invention from another direction; Figure 4 This is a schematic diagram of the external structure of the wire drawing unit of the present invention; Figure 5 This is a schematic diagram of the internal structure of the wire drawing liquid tank of the present invention; Figure 6 This is a schematic diagram of the internal structure of the mold groove of the present invention; Figure 7 This is a schematic diagram of the external structure of the outer mold base of the present invention; Figure 8 This is a schematic diagram of the internal structure of the inner mold of the present invention; Figure 9 This is a schematic diagram of the specific structure of the injection outer cylinder of the present invention; Figure 10 This is a schematic diagram of the specific structure of the drain cover of the present invention; Figure 11 This is a schematic diagram of the drawing fluid pipeline of the present invention; Figure 12 This is a schematic diagram of the external structure of the circular roller limiting seat of the present invention in one direction; Figure 13 This is a schematic diagram of the external structure of the circular roller limiting seat of the present invention from another direction; Figure 14This is a schematic diagram of the specific structure of the annular azimuth wheel of the present invention; Figure 15 This is a schematic diagram of the connection of the winding displacement seat of the present invention; Figure 16 This is a schematic diagram showing the installation position of the sealing oil bladder of the present invention; Figure 17 This is a schematic diagram of the specific structure of the tool changing mechanism of the present invention; Figure 18 This is a schematic diagram of the external structure of the lifting platform of the present invention; Figure 19 This is a schematic diagram of the internal structure of the moving slot of the present invention; Figure 20 This is a schematic diagram of the internal structure of the lifting platform of the present invention.

[0027] In the diagram: 1. Machine base; 2. Wire drawing unit; 3. Coarse copper wire; 4. Intermediate copper wire; 5. Copper wire groove; 6. Copper wire adjuster; 10. Wire drawing seat; 11. Wire drawing liquid tank; 12. Die groove; 13. Partition plate; 14. Liquid guide port; 15. Fine filter screen; 16. Auxiliary drive wheel; 17. Positioning wheel platform; 20. First guide wheel; 21. Second guide wheel; 22. Third guide wheel; 23. Fourth guide wheel; 24. Fifth guide wheel; 30. Outer die base; 31. Support frame; 32. Mounting port; 33. Inner die; 34. Chamfered surface; 35. Guide surface 36. Extrusion surface; 40. Injection outer cylinder; 41. Wire hole; 42. Cylinder cavity; 43. Annular injection head; 44. Injection hole; 45. Sealing gasket; 46. Drainage outlet; 50. Drainage inner cover; 51. Positioning bearing; 52. Outer gear sleeve; 53. Drive gear; 54. Uniform speed motor; 55. Motor housing; 56. Drainage outlet; 60. First support plate; 61. Temporary storage tank; 62. Double-hole connector; 63. Injection pipe; 64. Inlet pipe; 65. Horizontal pipe; 66. Second support plate; 67. Pump; 68. Pumping pipe; 70. Circular limit seat of the reel; 71. Shock absorber; 72. Feed channel; 73. Conveyor; 74. Take-up drum; 75. Docking interface; 76. Wire drawing port; 77. Discharge port; 80. Annular directional wheel; 81. Short shaft; 82. First bearing seat; 83. Large gear; 84. Small gear; 85. Servo motor; 86. Drum positioning groove; 87. Limiting track; 90. Storage limiting frame; 91. Winding displacement seat; 92. Slide groove; 93. Winding shaft; 94. Hydraulic telescopic rod; 95. Hydraulic cylinder; 100. Sealing door; 101. Cutting edge; 102. Grooving die; 103. Cutting holder; 1 04. Positioning socket; 105. Heat collecting jacket; 106. Sealing oil bladder; 110. Lifting platform; 111. Lead screw seat; 112. Lead screw nut sleeve; 113. Lead screw; 114. Second bearing seat; 115. Synchronous sprocket; 116. Chain; 117. Lead screw motor; 120. Control cylinder; 121. Cylinder connecting rod; 123. Step block; 124. Insert strip; 125. Moving groove; 126. Moving seat; 127. Push-pull slide; 130. Return spring; 131. Limiting slider; 132. Limiting slide rail; 133. Clamping blade; 134. Plug. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0029] like Figure 1 As shown, this embodiment provides a copper wire structure, including an intermediate copper wire 4. The intermediate copper wire 4 is made by drawing a thick copper wire 3. The surface of the intermediate copper wire 4 has at least one set of copper wire grooves 5. By designing the copper wire grooves 5, multiple copper wires can be placed together, which can be used in the fields of water absorption and heat dissipation.

[0030] Increased effective heat dissipation area: After slotting, the surface area of ​​the copper wire increases significantly, improving the heat exchange efficiency with the surrounding medium (liquid or air).

[0031] Improved liquid wetting and distribution: The groove structure can guide the liquid to spread in a specific direction, avoiding localized drying.

[0032] Enhanced liquid transport: Grooves significantly enhance capillary force. When copper wire is used in two-phase heat transfer systems (such as heat pipes), liquids (such as water, alcohol, etc.) can spread rapidly and evenly along the grooves through capillary force. Example 2

[0033] like Figures 2-15 As shown, an intelligent copper wire drawing machine is applied to the aforementioned copper wire structure. It includes a base 1, with several sets of drawing units 2 evenly distributed at the upper end of the base 1. A wire feeding device is provided on the left side of the base 1. The thick copper wire 3 is led out from the wire feeding device and enters the drawing unit 2. Each set of drawing units 2 includes a drawing seat 10. The interior of the drawing seat 10 is provided with a drawing liquid tank 11 and a mold tank 12 from left to right. The drawing liquid tank 11 and the mold tank 12 are separated by a partition 13 fixed in the middle of the drawing seat 10.

[0034] The partition 13 has a liquid guide port 14 that runs through it. The liquid guide port 14 is flush with the bottom of the mold groove 12. A fine filter screen 15 is installed on the liquid guide port 14.

[0035] Two sets of auxiliary drive wheels 16 are provided in the middle of the drawing liquid tank 11, which act on the intermediate copper wire 4. The auxiliary drive wheels 16 are equipped with their own drive motors and move in opposite directions. The drawing liquid in the drawing liquid tank 11 can also lubricate and dissipate heat for the auxiliary drive wheels 16. The two sets of auxiliary drive wheels 16 are connected and fixed upward by the positioning wheel platform 17 and the second support plate 66.

[0036] In this embodiment, the first guide wheel 20 and the second guide wheel 21 acting on the intermediate copper wire 4 are installed sequentially from left to right inside the drawing liquid tank 11. The third guide wheel 22 acting on the intermediate copper wire 4 is installed at the top center of the partition plate 13. The fourth guide wheel 23 and the fifth guide wheel 24 acting on the intermediate copper wire 4 are installed sequentially from bottom to top at the right end of the mold tank 12. The actual position and height of the guide wheels can be designed according to specific circumstances.

[0037] Furthermore, an outer mold base 30 is provided in the middle of the mold groove 12. The outer mold base 30 is connected to the bottom of the mold groove 12 by a support frame 31. An installation port 32 is provided in the middle of the interior of the outer mold base 30. An inner mold 33 that acts on the intermediate copper wire 4 is installed in the installation port 32.

[0038] The inner mold 33 has, from left to right, a chamfered surface 34, a guide surface 35, an extrusion surface 36, and a chamfered surface 34.

[0039] Furthermore, injection outer cylinders 40 are provided on both the left and right sides of the outer mold base 30 and are fitted onto the mounting port 32, serving to fix and seal. The injection outer cylinder 40 has a cavity 42 inside, and a wire hole 41 connected to the cavity 42 is provided at the middle position of the left end of the injection outer cylinder 40.

[0040] An annular injection head 43 is fixed in the left position inside the cylinder cavity 42. Several sets of injection holes 44 that act on the inner mold 33 are evenly distributed on the annular injection head 43. The injection holes 44 are distributed around the outer side of the intermediate copper wire 4. A drain outlet 46 is opened at the bottom of the injection outer cylinder 40.

[0041] The inner drain cover 50 is rotatably installed in the right position inside the cylinder cavity 42. The left end of the inner drain cover 50 is connected to the cavity wall of the cylinder cavity 42 by the outer side of the positioning bearing 51 (and connected to the annular spray head 43 by the end face of the positioning bearing 51, which serves as a seal). The outer toothed sleeve 52 is sleeved on the outer side of the right end of the inner drain cover 50.

[0042] Specifically, a drive gear 53 is meshed on the outer side of the outer gear sleeve 52. The drive gear 53 is sleeved on the output shaft of the constant speed motor 54. The constant speed motor 54 is installed inside the motor housing 55, and the motor housing 55 is connected to the outside of the injection outer cylinder 40.

[0043] The drain cover 50 has a drain port 56 on its cover, and a sealing gasket 45 acting on the drain port 56 is installed on the inner wall of the cylinder cavity 42. The sealing gasket 45 has deformation and recovery performance.

[0044] Furthermore, a first support plate 60 is installed inside the mold groove 12 and above the outer mold base 30. A temporary liquid storage tank 61 is mounted on the first support plate 60. An air tank is installed at the upper part of the temporary liquid storage tank 61 to provide spraying force. A double-hole connector 62 is installed at the bottom of the temporary liquid storage tank 61. Two sets of injection pipes 63 are installed on the double-hole connector 62. The two sets of injection pipes 63 extend downward and are respectively connected to the annular spray head 43.

[0045] The upper end of the temporary liquid storage tank 61 is connected to the liquid inlet pipe 64, and the lower end of the liquid inlet pipe 64 is connected to the horizontal pipe 65. The horizontal pipe 65 is installed on the upper surface of the second support plate 66. The two ends of the horizontal pipe 65 are symmetrically distributed with liquid pumps 67. The liquid pumps 67 extend downward into the bottom of the drawing liquid tank 11 through the liquid pump pipe 68.

[0046] Furthermore, a circular drum limit seat 70 is provided on the right side of the machine base 1. A copper wire adjuster 6 that acts on the intermediate copper wire 4 is provided between the circular drum limit seat 70 and a set of wire drawing units 2 on the right. A guide adjustment wheel group is provided inside the copper wire adjuster 6. A shock absorber frame 71 is provided at the bottom of the circular drum limit seat 70 to provide support and shock absorption.

[0047] In this embodiment, a feeding channel 72 is connected to the right side of the circular drum limiting seat 70. A docking interface 75 communicating with the feeding channel 72 is opened at the middle position of the right side of the circular drum limiting seat 70. The docking interface 75 is connected to the drum positioning groove 86. A conveyor 73 is installed inside the feeding channel 72. A take-up drum 74 is transported on the belt of the conveyor 73.

[0048] In this embodiment, an annular directional wheel 80 is rotatably provided at the middle position inside the circular drum limiting seat 70. Short shafts 81 are symmetrically welded on both sides of the middle part of the annular directional wheel 80. Each set of short shafts 81 is connected to the circular drum limiting seat 70 by the first bearing seat 82.

[0049] A large gear 83 is sleeved on one of the short shafts 81, and a small gear 84 is meshed on one side of the large gear 83. The small gear 84 is sleeved on the servo motor 85.

[0050] Furthermore, four sets of drum positioning grooves 86 are evenly opened on the surface of the annular directional wheel 80. The inside of the drum positioning groove 86 is provided with a limiting rail 87 that acts on the take-up drum 74. The limiting rail 87 allows the two circular baffles inside the take-up drum 74 to be inserted and move. The upper end of the drum circular limiting seat 70 is provided with a wire drawing port 76 that communicates with the drum positioning groove 86. It is necessary to ensure that part of the take-up drum 74 extends out of the wire drawing port 76. The part of the take-up drum 74 extending out of the wire drawing port 76 of the drum positioning groove 86 connects to the intermediate copper wire 4 for wire drawing. The lower end of the drum circular limiting seat 70 is provided with a discharge port 77 that communicates with the drum positioning groove 86.

[0051] Furthermore, storage limit frames 90 are symmetrically fixed on both sides of the circular roller limit seat 70 near the upper end, and a winding displacement seat 91 is movably arranged inside each set of storage limit frames 90.

[0052] The winding displacement seat 91 is symmetrically provided with a sliding groove 92. A guide plate extending into the sliding groove 92 is installed inside the storage limit frame 90. A winding shaft 93 is rotatably provided inside the winding displacement seat 91. The winding shaft 93 passes through the shaft hole on the circular limit seat 70 of the drum and is inserted into the connecting groove of the take-up drum 74. There is a pair of shaft holes located on both sides of the wire drawing opening 76. A winding motor is installed in one of the winding displacement seats 91.

[0053] Among them, the ends of the two sets of winding displacement seats 91 that are away from the circular limit seat 70 of the drum are connected to hydraulic telescopic rods 94. The hydraulic telescopic rods 94 extend horizontally outward from the inside of the hydraulic cylinder 95, and the hydraulic cylinder 95 is in a horizontal positioning state.

[0054] In this embodiment, after the coarse copper wire 3 on the wire feeding device is released by the overall pulling force (the pulling force is provided by the winding motor and several sets of auxiliary drive wheels 16), it enters the leftmost wire drawing unit 2. In the wire drawing unit 2, the coarse copper wire 3 is called the intermediate copper wire 4. The intermediate copper wire 4 is first guided by the first guide wheel 20 into the wire drawing liquid tank 11, so as to be cleaned, lubricated and cooled by the wire drawing liquid in the wire drawing liquid tank 11 (the cooling is generally the intermediate copper wire 4 carrying high temperature in the previous wire drawing unit 2). The two sets of auxiliary drive wheels 16 of the wire drawing liquid tank 11 provide power to pull the intermediate copper wire 4 to the right, thereby assisting the traction work of the take-up drum 74 in a local way and providing the pulling force. Then, the intermediate copper wire 4 is guided by the second guide wheel 21 and the third guide wheel 22 in sequence into the mold groove 12.

[0055] The intermediate copper wire 4 in the mold groove 12 passes through the wire hole 41 of the injection outer cylinder 40 and enters the inner mold 33. When the intermediate copper wire 4 enters the extrusion surface 36 of the inner mold 33, the copper material is forcibly pulled through the mold hole (usually made of diamond, hard alloy or ceramic) with a slightly smaller diameter than its original diameter under the action of strong tensile force. The cross-sectional area of ​​the copper material is permanently reduced and the length increases. At the same time, its internal grain structure is arranged along the stretching direction, and the appearance shows that the intermediate copper wire 4 becomes thinner. Then, the intermediate copper wire 4 is guided by the fourth guide wheel line 23 to move into an adjacent set of wire drawing units 2 and repeats the above wire drawing process. In this way, several sets of wire drawing units 2 are used to present multiple wire drawing processes so that the thickness of the intermediate copper wire 4 meets the specifications.

[0056] Then, the intermediate copper wire 4 enters the drawing port 76 from the rightmost drawing unit 2 and is wound onto the take-up drum 74 (the position of the intermediate copper wire 4 on the take-up drum 74 can be changed by adjusting the copper wire adjuster 6). When the two sets of winding shafts 93 drive the take-up drum 74 to wind, the take-up drum 74 will move along the limiting track 87 of the drum positioning groove 86 to improve the stability of winding. After a set of take-up drums 74 has finished winding and formed a drum of copper wire, the intermediate copper wire 4 is immediately cut off and the winding is started separately. Two sets of hydraulic cylinders 95 are activated, causing the hydraulic telescopic rods 94 to retract and drive the winding displacement seats 91 to move in opposite directions, separating the two sets of winding shafts 93 from the copper wire rolls. At this time, the servo motor 85 is started, and the small gear 84 rotates and drives the large gear 83 to rotate through meshing and deceleration. This causes the annular azimuth wheel 80, which is coaxial with the large gear 83, to rotate, carrying the copper wire rolls of the drum to move in a circular motion at a certain angle, so that the copper wire rolls of the drum are at the bottom of the annular azimuth wheel 80, and the copper wire rolls of the drum are automatically released from the unloading port 77 into the positioning groove 86.

[0057] During feeding, by starting the conveyor 73, the empty take-up drum 74 moves to the left in a straight line along the conveyor belt of the conveyor 73 in the feed channel 72 until it is guided from the docking interface 75 into the drum positioning groove 86 on the right side of the annular directional wheel 80, completing the automatic docking and feeding. As the annular directional wheel 80 moves, the drum positioning groove 86 carrying the empty take-up drum 74 moves upward into the wire drawing port 76 (precise arc movement of 90°) to perform the wire drawing work in turn.

[0058] When the inner mold 33 is working, two sets of liquid pumps 67 are started. The liquid pumping pipe 68 is used to draw the drawing liquid in the drawing liquid tank 11 and then transport it to the temporary storage tank 61 through the horizontal pipe 65 and the liquid inlet pipe 64 for temporary storage. Then, the pressure tank on the temporary storage tank 61 is opened to release air and generate air pressure to force the drawing liquid in the temporary storage tank 61 to flow outward. The liquid is evenly distributed to two sets of injection pipes 63 through the double-hole connector 62. The drawing liquid is transported into the annular spray head 43 through the injection pipe 63 and sprayed in an annular manner from several sets of spray holes 44 around the outside of the intermediate copper wire 4. The drawing liquid moves at high speed into the inner mold 33 to wash away the impurities generated by friction during the drawing process (a small part of the drawing liquid penetrates into the central area of ​​the inner mold 33), forming a mixed liquid. The mixed liquid is then guided to the drain cover 50 for temporary storage through the chamfered surface 34.

[0059] Once a certain amount of mixed liquid accumulates in the drain inner cover 50, the uniform speed motor 54 is started, driving the gear 53 to rotate and causing the outer gear sleeve 52 to move through meshing. This causes the drain inner cover 50 to make a circular motion in the middle position inside the cylinder cavity 42, generating centrifugal force to throw the mixed liquid out through the drain inner port 56 (during spraying, the drain inner port 56 and the sealing gasket 45 are in contact and sealed, forming a negative pressure environment in the cylinder cavity 42, which facilitates the horizontal movement of the drawing liquid). The mixed liquid is randomly discharged from the drain outer port 46 at the bottom of the injection outer cylinder 40 and flows into the bottom of the mold tank 12. Under the action of centrifugal force, the mixed liquid in the drain inner cover 50 can be completely drained without residue. The mixed liquid at the bottom of the mold tank 12 will flow to the guide port 14, and after passing through the fine filter screen 15 to absorb impurities, the remaining mixed liquid will flow back into the drawing liquid tank 11 to achieve the purpose of recycling. Example 3

[0060] Based on implementations one and two, the current grooving die 102 is manually installed on the inner mold 33. Because the grooving die 102 is prone to cracking, wear, or blockage when subjected to enormous radial pressure and friction during use, its lifespan is very short, requiring frequent replacement. The current manual replacement method is time-consuming, labor-intensive, and lacks sealing performance. To solve these technical problems, we have the following design, such as... Figures 16-20 As shown.

[0061] Specifically, some of the wire drawing units 2 have a cutting edge 101 on the guide surface 35, through which the grooving die 102 passes (normally, only one of the extrusion surface 36 of each set of inner molds 33 and the cutting edge 101 used to install the grooving die 102 can be retained). The grooving die 102 acts on the surface of the intermediate copper wire 4 to form a copper wire groove 5. The upper end of the grooving die 102 is connected to a die holder 103, and several sets of positioning holes 104 are opened through the inside of the die holder 103.

[0062] Each set of cutter holders 103 has two sets of sealing oil bladders 106 attached to its outer side (the sealing oil bladders 106 are in contact with the slotting die 102 in the initial state but without any squeezing force). The sealing oil bladders 106 are located inside the heat collection sleeve 105, which is fixed inside the outer die holder 30.

[0063] Furthermore, the tool holder 103 is installed inside the tool changing mechanism, which includes a lifting platform 110.

[0064] The lifting platform 110 has symmetrically installed lead screw seats 111 on both sides. The lead screw seat 111 has a lead screw nut sleeve 112 (with a nut for helical movement inside) that acts on the lead screw 113. There are two sets of lead screws 113 distributed on both sides of the lifting platform 110. The upper and lower ends of the lead screws 113 are connected to the inner wall of the outer mold seat 30 through the second bearing seat 114. The upper ends of the two sets of lead screws 113 are fitted with synchronous sprockets 115. The two sets of synchronous sprockets 115 are connected by a chain 116 for transmission. One set of lead screws 113 extends upward and is connected to a lead screw motor 117 through a coupling.

[0065] In this embodiment, a control cylinder 120 is vertically installed at the upper part of the lifting platform 110. A cylinder connecting rod 121 is movably installed downward from the inside of the control cylinder 120. A step block 123 is installed at the lower end of the cylinder connecting rod 121. Embossing strips 124 are symmetrically arranged on both sides of the step block 123. A moving groove 125 is opened downward inside the lifting platform 110. Two sets of moving seats 126 are movably arranged in the moving groove 125. A push-pull slide groove 127 for embedding the embedding strip 124 is opened on the inner inclined surface of each set of moving seats 126. The cross-section of the push-pull slide groove 127 is smaller on the outside and larger on the inside.

[0066] In this embodiment, the side of the movable seat 126 away from the push-pull slide groove 127 is connected to the inner wall of the movable groove 125 by a return spring 130. After the return spring 130 is compressed, it provides a certain elastic force to assist the movable seat 126 in moving towards each other. Limiting sliders 131 are installed at both ends of the movable seat 126. A limiting slide rail 132 for the movement of the limiting slider 131 is provided on the groove wall of the movable groove 125. The lower end of each set of movable seats 126 is connected to a clamping blade 133 that acts on the blade holder 103. A plug 134 that extends into the corresponding positioning socket 104 is fixed on one set of clamping blades 133.

[0067] Furthermore, an operating chamber is provided inside the outer mold base 30, and a sealing door 100 is movably installed on the outer surface of the operating chamber.

[0068] When changing the die, first start the lead screw motor 117 to drive one set of lead screws 113 to rotate. Through the connection of the synchronous sprocket 115 and the chain 116, the two sets of lead screws 113 move synchronously in the same direction, so that the two sets of lead screw seats 111 move upward along the corresponding lead screws 113. The lifting platform 110 moves upward together with the die holder 103, so that the grooving die 102 leaves the cutting edge 101 position. Then, the cylinder connecting rod 121 in the control cylinder 120 extends, driving the step block 123 to move. The two sets of inserts 124 slide along the push-pull slide groove 127 and push the two sets of moving seats 126 to move in opposite directions (the limit slider 131 moves along the limit slide rail 132). This allows the two sets of clamping blades 133 to separate, releasing the damaged grooving die 102 for easy removal.

[0069] Then, the new grooving die 102 is placed into the operating chamber. First, the cylinder connecting rod 121 is retracted, which drives the step block 123 to move. The two sets of inserts 124 slide along the push-pull slide groove 127 and pull the two sets of moving seats 126 to move towards each other. The two sets of clamping blades 133 accurately clamp the cutter seat 103 on the grooving die 102 (the plug 134 is inserted into the corresponding positioning socket 104). Then, the two sets of lead screw seats 111 slowly move downward along the corresponding lead screw 113. The lifting platform 110 moves downward together with the cutter seat 103, allowing the grooving die 102 to be inserted into the cutter 101 position, and the extension degree can be precisely controlled.

[0070] When the cutter holder 103 moves downward, it will come into contact with the sealing oil bladders 106 on both sides. When transitioning from the slotted die 102 to the wider cutter holder 103, the sealing oil bladders 106 will be limited and squeezed to fully fit the two sides of the cutter holder 103 to achieve a sealing and liquid-proof effect. During the wire drawing process, part of the heat generated by the die is concentrated by the heat collection sleeve 105, which heats the sealing oil bladders 106 inside. The sealing oil inside undergoes a thermal expansion reaction, and the sealing oil bladders 106 expand, further fitting more tightly to the two sides of the cutter holder 103, thus limiting and fixing the cutter holder.

[0071] All structural components disclosed in the embodiments need to be adjusted in size and shape according to the actual installation environment, and are not limited to the styles disclosed in the drawings. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0072] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A copper wire structure comprising an intermediate copper wire (4), characterized in that: The intermediate copper wire (4) is made by drawing coarse copper wire (3) through a wire drawing process, and the surface of the intermediate copper wire (4) has at least one set of copper wire grooves (5).

2. A copper wire intelligent drawing machine, applied to the copper wire structure described in claim 1, comprising a base (1), characterized in that: The upper end of the base (1) is provided with several sets of wire drawing units (2) at equal intervals. Each set of wire drawing units (2) includes a wire drawing seat (10). The wire drawing seat (10) has a wire drawing liquid tank (11) and a mold tank (12) respectively opened from left to right. The wire drawing liquid tank (11) and the mold tank (12) are separated by a partition (13) fixed in the middle of the wire drawing seat (10). A liquid guide port (14) is opened through the partition (13). The liquid guide port (14) is flush with the bottom of the mold tank (12). A fine filter screen (15) is installed on the liquid guide port (14). An outer mold base (30) is provided in the middle of the mold groove (12). An injection outer cylinder (40) is provided on both the left and right sides of the outer mold base (30) and is fitted onto the mounting port (32). A cylinder cavity (42) is opened inside the injection outer cylinder (40). A wire hole (41) communicating with the cylinder cavity (42) is opened at the middle position of the left end of the injection outer cylinder (40). An annular spray head (43) is fixed in the left position inside the cylinder cavity (42). Several sets of spray holes (44) acting on the inner mold (33) are evenly distributed on the annular spray head (43). A drain outlet (46) is opened at the bottom of the injection outer cylinder (40). A drain cover (50) is rotatably installed on the right side of the cylindrical cavity (42). The left end of the drain cover (50) is connected to the cavity wall of the cylindrical cavity (42) by a positioning bearing (51). An outer toothed sleeve (52) is sleeved on the outer side of the right end of the drain cover (50). A drive gear (53) is meshed on the outer side of the outer toothed sleeve (52). The drive gear (53) is sleeved on the output shaft of a constant speed motor (54). A drain port (56) is opened on the cover of the drain cover (50). A sealing gasket (45) acting on the drain port (56) is installed on the inner wall of the cylindrical cavity (42).

3. The intelligent copper wire drawing machine according to claim 2, characterized in that: Two sets of auxiliary drive wheels (16) acting on the intermediate copper wire (4) are provided in the middle position of the drawing liquid tank (11). The two sets of auxiliary drive wheels (16) are connected and fixed upward by the positioning wheel platform (17) and the second support plate (66). The first guide wheel (20) and the second guide wheel (21) acting on the intermediate copper wire (4) are installed in the drawing liquid tank (11) from left to right. The third guide wheel (22) acting on the intermediate copper wire (4) is installed in the middle position of the top of the partition plate (13). The fourth guide wheel (23) and the fifth guide wheel (24) acting on the intermediate copper wire (4) are installed in the right end of the mold groove (12) from bottom to top.

4. The intelligent copper wire drawing machine according to claim 2, characterized in that: The outer mold base (30) is connected to the bottom of the support frame (31) and the mold groove (12). An installation port (32) is provided in the middle of the inner part of the outer mold base (30). An inner mold (33) that acts on the intermediate copper wire (4) is installed in the installation port (32). The inner mold (33) has a chamfered surface (34), a guide surface (35), an extrusion surface (36), and a chamfered surface (34) arranged sequentially from left to right inside.

5. The intelligent copper wire drawing machine according to claim 2, characterized in that: A first support plate (60) is installed inside the mold groove (12) and above the outer mold base (30). A temporary liquid storage tank (61) is mounted on the first support plate (60). A double-hole connector (62) is installed at the bottom of the temporary liquid storage tank (61). Two sets of injection pipes (63) are installed on the double-hole connector (62). The two sets of injection pipes (63) extend downward and are connected to the annular spray head (43). An inlet pipe (64) is connected to the upper end of the temporary liquid storage tank (61). A horizontal pipe (65) is connected to the lower end of the inlet pipe (64) extending outward. A liquid pump (67) is symmetrically distributed at both ends of the horizontal pipe (65). The liquid pump (67) extends downward into the bottom of the drawing liquid tank (11) using the liquid pump pipe (68).

6. The intelligent copper wire drawing machine according to claim 2, characterized in that: A circular drum limiting seat (70) is provided on the right side of the base (1). A copper wire adjuster (6) acting on the intermediate copper wire (4) is provided between the circular drum limiting seat (70) and the drawing unit (2) on the right. A feeding channel (72) is connected to the right side of the circular drum limiting seat (70). A docking interface (75) communicating with the feeding channel (72) is opened in the middle of the right side of the circular drum limiting seat (70). The docking interface (75) is connected to the drum positioning groove (86). A conveyor (73) is installed inside the feeding channel (72). A take-up drum (74) is transported on the belt of the conveyor (73). An annular directional wheel (80) is rotatably arranged in the middle of the inner part of the circular limit seat (70) of the drum. Short shafts (81) are symmetrically welded on both sides of the middle part of the annular directional wheel (80). Each set of short shafts (81) is connected to the circular limit seat (70) of the drum by means of the first bearing seat (82). A large gear (83) is sleeved on one set of short shafts (81). A small gear (84) is meshed on one side of the large gear (83). The small gear (84) is sleeved on the servo motor (85).

7. The intelligent copper wire drawing machine according to claim 6, characterized in that: The annular directional wheel (80) has four sets of drum positioning grooves (86) evenly distributed on its surface. The drum positioning groove (86) is provided with a limiting track (87) that acts on the take-up drum (74). The upper end of the drum circular limiting seat (70) is provided with a wire drawing port (76) that communicates with the drum positioning groove (86). The take-up drum (74) of the drum positioning groove (86) extends out of the wire drawing port (76) and connects to the intermediate copper wire (4) for wire drawing. The lower end of the drum circular limiting seat (70) is provided with a discharge port (77) that communicates with the drum positioning groove (86). The two sides of the circular limit seat (70) are symmetrically fixed with storage limit frames (90) near the upper end. Each set of storage limit frames (90) is movably provided with a winding displacement seat (91). The winding displacement seat (91) is provided with a winding shaft (93) that rotates outward inside. The winding shaft (93) passes through the shaft hole on the circular limit seat (70) and is inserted into the connecting groove of the take-up drum (74). One set of winding displacement seats (91) is equipped with a winding motor. The ends of the two sets of winding displacement seats (91) away from the circular limit seat (70) are connected with hydraulic telescopic rods (94). The hydraulic telescopic rods (94) extend horizontally outward from the inside of the hydraulic cylinder (95). The hydraulic cylinder (95) is in a horizontal positioning state.

8. The intelligent copper wire drawing machine according to claim 4, characterized in that: A cutting edge (101) is provided on the guide surface (35) of the wire drawing unit (2). The cutting edge (101) is for the grooving die (102) to pass through. The grooving die (102) acts on the surface of the intermediate copper wire (4) to form a copper wire groove (5). The upper end of the grooving die (102) is connected to a slab holder (103). Several sets of positioning holes (104) are provided through the inside of the slab holder (103). Two sets of sealing oil bladders (106) are attached to the outside of each set of slab holders (103). The sealing oil bladders (106) are located inside the heat collection sleeve (105). The heat collection sleeve (105) is fixed inside the outer mold base (30).

9. The intelligent copper wire drawing machine according to claim 8, characterized in that: The tool holder (103) is installed in the tool changing mechanism, which includes a lifting platform (110). Screw seats (111) are symmetrically installed on both sides of the lifting platform (110). A screw nut sleeve (112) acting on the screw (113) is installed inside the screw seat (111). There are two sets of screws (113) distributed on both sides of the lifting platform (110). The upper ends of the two sets of screws (113) are fitted with synchronous sprockets (115). The two sets of synchronous sprockets (115) are connected and driven by a chain (116). One set of screws (113) extends upward and is connected to a screw motor (117) through a coupling.

10. The intelligent copper wire drawing machine according to claim 9, characterized in that: A control cylinder (120) is vertically installed at the upper part of the interior of the lifting platform (110). A cylinder connecting rod (121) extends downward from the interior of the control cylinder (120). A step block (123) is installed at the lower end of the cylinder connecting rod (121). Embossing strips (124) are symmetrically arranged on both sides of the step block (123). A moving groove (125) is opened downward inside the lifting platform (110). Two sets of moving seats (126) are movably arranged in the moving groove (125). Each set of moving seats (126) has a push-pull mechanism on its inner inclined surface for embedding the embellishing strips (124). The sliding groove (127) is connected to the inner wall of the sliding groove (125) by a return spring (130) on the side of the movable seat (126) away from the sliding groove (127). Limiting sliders (131) are installed at both ends of the movable seat (126). Limiting slide rails (132) for the movement of the limiting sliders (131) are provided on the groove wall of the sliding groove (125). Each set of movable seats (126) is connected to a clamping blade (133) that acts on the blade holder (103). One set of clamping blades (133) is fixed with a plug (134) that extends into the corresponding positioning socket (104).

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