A wire feeding device for a copper wire drawing machine

Abstract

The present invention relates to the technical field of copper wire manufacturing, and in particular to a wire feeding device of a copper wire drawing machine, comprising a die seat, one side of which is provided with a pressing plate for pressing down a wire drawing die, the end where the pressing plate is located is defined as the front end, and a spiral rod extending forward and backward is provided in the die seat; a conveying assembly and a stretching assembly are provided on the pressing plate, the stretching assembly is located on the left side of the conveying assembly, and the conveying assembly and the stretching assembly both include two helical gears arranged front to back and matched to clamp the copper wire, and the helical gear rotation speed of the stretching assembly is higher than the helical gear rotation speed of the conveying assembly; a cutting assembly is also provided on the pressing plate, which is located between the conveying assembly and the stretching assembly, and includes a swivel and a matching plate, the swivel is located at the rear end of the pressing plate, one side of the outer peripheral surface of the swivel is provided with a vertical cutter along the axial direction, and the matching plate is located on the front side of the swivel; the provision of the wire feeding device improves the threading efficiency of the copper wire, avoids the copper shavings generated by copper wire grinding from wearing the wire drawing die, and at the same time improves the service life of the wire drawing die.

Description

Technical Field

[0001] The invention relates to the technical field of copper wire manufacturing, and in particular to a wire feeding device of a copper wire drawing machine. Background Art

[0002] The copper wire drawing machine is a device used to make copper wire. The principle of the copper wire drawing machine is to use power to wind and pull the copper wire. The copper wire is pulled forward through the drawing die to produce pultrusion plastic deformation and evenly shrink and stretch. The wire drawing machine uses the ductility of copper wire and uses the compression of the die to reduce its diameter, thereby achieving the required wire diameter.

[0003] For example, a Chinese patent document with authorization announcement number CN206065059U discloses a copper wire drawing machine, including a wire-paying device, a wire-drawing machine body, a wire-taking device and a control device. The wire-drawing machine is provided with a wire-drawing die group consisting of a plurality of wire-drawing dies with different apertures. The copper wire is manually inserted into the wire-drawing die group in the wire-drawing machine body after multiple manual polishing from the wire-paying device. After the multi-mode wire drawing operation, the inner diameter of the copper wire is reduced to the required size and then collected by the wire-taking device.

[0004] However, the above device still has certain shortcomings when in use: 1. During the long-term use of the above device, the wire drawing die in the wire drawing machine body will inevitably wear out due to the strong friction and scouring of the copper wire on the die wall. The most common phenomenon is the appearance of annular grooves at the wire entrance in the working area, which aggravates the wear of the die hole; 2. When the copper wire passes through the die hole of the wire drawing die, the process of manually grinding the end of the copper wire with a file is likely to cause copper chips to remain inside the die hole of the wire drawing die, accelerating the wear of the wire drawing die; 3. Due to the large number of wire drawing dies, manually filing the end of the copper wire with a file increases the workload, resulting in low efficiency in threading the wire drawing die. Summary of the invention

[0005] The invention provides a wire feeding device for a copper wire drawing machine, so as to solve the technical problems in the prior art that manual wire threading of a wire drawing die causes serious wear of the wire drawing die and low threading efficiency.

[0006] In order to solve the above problems, the present invention provides a wire feeding device for a copper wire drawing machine adopts the following technical solution:

[0007] A wire feeding device for a copper wire drawing machine comprises a die seat, one side of which is provided with a pressing plate for pressing down a wire drawing die, the end where the pressing plate is located is defined as the front end, and a spiral rod extending forward and backward is provided in the die seat, so that the outer edge of the spiral rod contacts the lower end of the wire drawing die during the rotation process, thereby driving the wire drawing die to rotate intermittently;

[0008] The pressing plate is provided with a conveying assembly and a stretching assembly, the stretching assembly is located on the left side of the conveying assembly, and both the conveying assembly and the stretching assembly include two helical gears arranged front and back opposite to each other and cooperating with the copper wire clamping, and the helical gear speed of the stretching assembly is higher than the helical gear speed of the conveying assembly, so as to stretch the copper wire end to make it thinner;

[0009] A cutting assembly is also provided on the pressing plate, which is located between the conveying assembly and the stretching assembly, and includes a swivel and a matching plate. The swivel is located at the rear end of the pressing plate, and a vertical cutter is provided on one side of the outer peripheral surface of the swivel along the axial direction. The matching plate is located at the front side of the swivel and is used to cooperate with the cutter to cut the copper wire.

[0010] Its beneficial effects are as follows: compared with the prior art, the device is provided with a spiral rod driven by a motor under the wire drawing die, and the outer edge of the spiral structure on the spiral rod is in contact with the lower end of the wire drawing die, so that the spiral rod can drive the wire drawing die to rotate intermittently during the rotation process, thereby reducing the degree of wear of the wire drawing die hole in the same area and extending the service life of the wire drawing die; by arranging a stretching component, the copper wire can be made thinner by stretching, overcoming the problem of more copper chips remaining on the surface of the copper wire end caused by the traditional filing method, reducing the probability of wear and tear, and reducing manual labor.

[0011] Furthermore, the mold base has two rows of parallel placement grooves along the front-to-back direction, and a plurality of limiting rollers are arranged in the placement grooves for positioning and supporting the wire drawing die; the screw rod is located below the limiting roller, and a motor is arranged at the front end of one of the screw rods, which is defined as motor one, and pulleys are arranged at the front ends of the two screw rods so that motor one drives the screw rod to rotate through belt transmission.

[0012] Furthermore, a rotating cylinder is provided at the front end of the mold base, and the rotating cylinder has a telescopic rod, and the upper end of the telescopic rod is fixedly connected to the pressing plate to drive the pressing plate to rotate and move vertically through the rotating cylinder.

[0013] Furthermore, the bevel gear at the front end of the conveying assembly is the main conveying wheel, and the lower end of the main conveying wheel has a gantry fixed on the pressure plate, which is defined as gantry one, and a pulley is provided at the lower end of the gantry, which is defined as pulley three, for driving the main conveying wheel to rotate; the bevel gear at the rear end of the conveying assembly is the slave conveying wheel, and its rear end has a C-shaped frame with an opening arranged in the left and right directions of the front edge, and the left and right ends of the C-shaped frame have C-shaped frames, and the slave conveying wheel is horizontally penetrated in the C-shaped frame through an axle to cooperate with the main conveying wheel to drive the copper wire to move to the left.

[0014] Furthermore, a plurality of tapered blocks extending forward and backward are arranged in parallel at the rear end of the pressing plate, and a tapered groove is provided at the lower end of the C-shaped frame corresponding to the tapered block, which is used to cooperate with the tapered block to play a guiding role; an iron block is fixed at the lower end of the C-shaped frame, and an electromagnet is provided on the front side of the C-shaped frame on the pressing plate to attract the iron block to move the C-shaped frame forward; and the lower ends of the left and right sides of the C-shaped frame have return springs extending forward and backward.

[0015] The beneficial effect is that the setting of the reset spring can make the C-shaped frame automatically reset after the electromagnet is powered off, thereby improving the working efficiency of the line transmission mechanism.

[0016] Furthermore, the bevel gear at the front end of the stretching component is the main stretching wheel, and a gantry frame fixed on the press plate is provided at its lower end, which is defined as gantry frame 2, and a motor is provided at the lower end of gantry frame 2, which is defined as motor 2; the bevel gear at the rear end of the stretching component is the slave stretching wheel, which is located in the middle of the C-shaped frame, and a cylindrical electric push rod is provided in the middle of the C-shaped frame along the front and rear directions, and a C-shaped seat is provided at the front end of the electric push rod, and the slave stretching wheel is horizontally installed in the C-shaped seat through an axle to push the slave stretching wheel so that it cooperates with the main stretching wheel to stretch the copper wire.

[0017] Furthermore, the swivel is located on a fixed column arranged on the right side of the stretching wheel, and has square baffles extending radially on the upper and lower sides of the swivel, and has square shift bars extending rightward on the upper and lower ends of the C-shaped seat on the right side, and the square shift bars are used to push the baffle bars; a torsion spring is sleeved between the swivel and the fixed column; the front side of the mating plate has two vertical support plates inclined from front to back to the middle, and the front ends of the support plates are respectively fixedly connected to the gantry frame one and the gantry frame two, and a horizontally extending guide plate is provided in the middle of the rear side of the mating plate.

[0018] The beneficial effect is that by arranging the guide plate on the matching plate, the copper wire can always be aligned with the die hole of the wire drawing die when moving, so that the copper wire can be automatically inserted and the threading efficiency is improved.

[0019] Furthermore, a mold bracket is provided on the left side of the stretching component. The mold bracket is a rectangular block, and its right end has a fixing groove for placing the wire drawing die. The left end of the mold bracket has a through groove opening upward and extending left and right at a position corresponding to the die hole of the wire drawing die.

[0020] Furthermore, a traction assembly is provided on the left side of the mold support, which includes a main traction wheel, which is located at the front end of the press plate, and a gantry frame fixed on the press plate is provided below the main traction wheel, which is defined as gantry frame three, and a motor is provided below the gantry frame three, which is defined as motor three, and a pulley is provided between motor three and gantry frame three, which is defined as pulley four, and motor three, pulley four and the main traction wheel are connected through a wheel axle; a belt is provided between pulley four and pulley three, which is defined as belt two; a slave traction wheel is provided at the rear end of the main traction wheel, which is located on the left side of the C-shaped frame and is horizontally penetrated into the C-shaped frame through an axis.

[0021] The beneficial effect is that the traction component is provided to realize automatic traction of the copper wire after perforation, replacing the manual traction process, further reducing the manual workload and improving work efficiency.

[0022] Furthermore, the lower surface of the pressing plate has two rows of arc grooves along the left and right directions that are adapted to the outer peripheral surface of the wire drawing die, and the inner surface of the arc groove has a plurality of ball bearings equidistantly arranged along the arc curve; an oil pipeline is horizontally arranged in the pressing plate, and the oil pipeline has an oil hole downwardly corresponding to the position of the wire drawing die hole on the die seat, and the oil pipeline has an oil filling hole on the left end face of the pressing plate, and the bottom surface of the placement groove has a plurality of oil drainage grooves opening downward.

[0023] Its beneficial effect is that by arranging an oil delivery pipeline and an oil delivery hole corresponding to the wire drawing die in the pressing plate, the lubricating oil can not only cool down and lubricate, but also flush away the waste chips generated during the working process of the wire drawing die, thereby reducing the probability of waste chips entering the die hole of the wire drawing die and extending the service life of the wire drawing die.

[0024] The beneficial effects of the wire feeding device of the copper wire drawing machine provided by the present invention are:

[0025] 1. Compared with the prior art, the device is provided with a spiral rod driven by a motor under the wire drawing die. The outer edge of the spiral structure on the spiral rod contacts the lower end of the wire drawing die, so that the spiral rod can drive the wire drawing die to rotate intermittently during the rotation process, thereby reducing the wear degree of the wire drawing die hole in the same area and extending the service life of the wire drawing die;

[0026] By setting up a stretching component, the copper wire can be made thinner by stretching, overcoming the problem of a large amount of copper chips remaining on the surface of the copper wire end caused by the traditional filing method, reducing the probability of wear and tear, and reducing manual labor.

[0027] 2. By arranging an oil delivery pipeline and an oil delivery hole corresponding to the wire drawing die in the die plate, the lubricating oil can not only cool down and lubricate, but also flush away the waste chips generated during the working process of the wire drawing die, thereby reducing the probability of waste chips entering the die hole of the wire drawing die and extending the service life of the wire drawing die.

[0028] 3. The setting of the reset spring can make the C-shaped frame automatically reset after the electromagnet is powered off, thereby improving the working efficiency of the line transmission mechanism.

[0029] 4. By setting up the traction component, automatic traction of the copper wire after perforation is realized, replacing the manual traction process, further reducing the manual workload and improving work efficiency.

[0030] 5. By setting a guide plate on the matching plate, the copper wire can always align with the die hole of the wire drawing die when moving, so that the copper wire can be automatically inserted and the threading efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0032] Figure 1 The overall structural diagram of the wire feeding device of the copper wire drawing machine provided by the present invention;

[0033] Figure 2 for Figure 1 A full cutaway view of the die holder shown;

[0034] Figure 3 for Figure 1 The structure of the pressing plate shown Figure 1 ;

[0035] Figure 4 for Figure 1 The structure of the pressing plate shown Figure 2 ;

[0036] Figure 5 for Figure 1 The structure of the pressing plate shown Figure 3 ;

[0037] Figure 6 for Figure 1 A partial cross-sectional view of the compression mold plate shown;

[0038] Figure 7 for Figure 1 Structural diagram of the middle C-frame;

[0039] Figure 8 for Figure 1 The structural diagram of the middle C-shaped seat;

[0040] Fig. 9 for Figure 1 Structural diagram of the transfer ring;

[0041] Fig.10 for Figure 1 The structural diagram of the middle main stretching wheel;

[0042] Fig.11 for Figure 1 The structural diagram of the middle main conveying wheel;

[0043] Fig.12 for Figure 1 Structural diagram of the middle main traction wheel.

[0044] Description of reference numerals:

[0045] 1. Mold seat; 11. Placement groove; 111. Avoidance groove; 112. Oil drain groove; 12. Limit roller; 13. Screw rod; 131. Screw structure; 14. Pulley 1; 15. Pulley 2; 16. Belt 1; 17. Motor 1; 18. Rotary cylinder;

[0046] 2. Pressing plate; 21. Telescopic rod; 22. Arc groove; 23. Ball; 24. Oil pipeline; 25. Oil delivery hole; 26. Oil filling hole; 27. Conical block; 28. Electromagnet;

[0047] 3. Line conveying mechanism; 31. Conveying assembly; 311. Main conveying wheel; 312. Main conveying wheel shaft; 313. Slave conveying wheel; 314. Slave conveying wheel shaft; 315. Pulley three; 316. Door frame one;

[0048] 32. stretching assembly; 321. main stretching wheel; 322. main stretching wheel shaft; 323. slave stretching wheel; 324. slave stretching wheel shaft; 325. motor 2; 326. gantry 2;

[0049] 33. Cutting assembly; 331. Rotating ring; 3311. Stop bar; 3312. Cutter; 3313. Torsion spring; 332. Fixed column; 333. Pick bar; 334. Matching plate; 335. Support plate; 336. Guide plate;

[0050] 34. Traction assembly; 341. Main traction wheel; 342. Main traction wheel shaft; 343. Slave traction wheel; 344. Slave traction wheel shaft; 345. Door frame three; 346. Motor three; 347. Pulley four; 348. Belt two;

[0051] 35. mold support; 351. fixing groove; 352. through groove; 353. through groove;

[0052] 36. C-shaped frame; 361. C-shaped frame; 362. C-shaped seat; 363. electric push rod; 364. iron block; 365. conical groove; 366. return spring. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0054] The main idea of ​​the present invention is to set a spiral rod 13 so that the wire drawing die can rotate while working, thereby reducing the degree of wear of the wire drawing die hole in the same area. At the same time, by setting a stretching component 32 and a cutting component 33 on the pressing plate 2, the copper wire can be inserted into the wire drawing die hole without manual grinding, thereby avoiding the copper chips generated by copper wire grinding from causing wear to the wire drawing die and improving the threading efficiency.

[0055] After introducing the basic principle of the present invention, various non-limiting embodiments of the present invention are described in detail below. The number of any element in the drawings is for illustration and not for limitation, and any naming is only for distinction and does not have any limiting meaning.

[0056] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0057] Embodiment 1 of a wire feeding device of a copper wire drawing machine provided by the present invention:

[0058] like Figures 1 to 12 As shown, the wire feeding device of the copper wire drawing machine mainly includes a die base 1 and a pressing plate 2, wherein the die base 1 has a spiral rod 13 for rotating the wire drawing die during operation to reduce the degree of wear of the die hole of the wire drawing die in the same area; the pressing plate 2 has a wire feeding mechanism 3 for avoiding the generation of copper chips by mechanical stretching, thereby avoiding the copper chips from wearing the wire drawing die and improving the threading efficiency.

[0059] The following first introduces the die base 1. The die base 1 is a rectangular block, and is provided with two rows of parallel rectangular placement grooves 11 extending in the front-to-back direction. The placement grooves 11 are provided with a plurality of limiting rollers 12 fixed on the inner walls of the placement grooves 11 in the left-right direction. The limiting rollers 12 in the two placement grooves 11 are staggered front to back to limit and support the wire drawing die; the placement grooves 11 are provided with a plurality of rectangular avoidance grooves 111 on both sides corresponding to the die holes of the wire drawing dies, which are used to isolate and limit the copper wires passing through different wire drawing dies; the placement grooves 11 have a plurality of oil drain grooves 112 extending left and right at the bottom, which are used to discharge waste lubricating oil to avoid the accumulation of lubricating oil and cause copper chips to enter the die holes of the wire drawing die.

[0060] The screw rod 13 is introduced below. The screw rod 13 is a cylindrical rod with a spiral structure 131 on the outer circumference. The two screw rods 13 are arranged in parallel in the front-to-back direction in the two placement grooves 11 and are located below the limiting roller 12. The outer edge of the spiral structure 131 on the screw rod 13 contacts the lower end of the wire drawing die, which is used to drive the wire drawing die to rotate when the screw rod 13 rotates; the front end of the mold base 1 is provided with a rectangular groove opening downward, and the front ends of the two screw rods 13 are both provided with pulleys located in the rectangular groove. The right pulley is defined as pulley 14, and the left pulley is pulley 2 15. Pulleys 14 and pulley 2 15 are provided with belts, which are defined as belt 16, wherein a motor is provided at the front end of pulley 14, which is defined as motor 17. Motor 17 is fixed to the front end of the mold base 1 to drive the two screw rods 13 to rotate through the pulleys.

[0061] A rotating cylinder 18 is provided on the upper surface of the front end of the mold base 1. The rotating cylinder 18 has a telescopic rod 21 with an output end facing upward. The upper end of the telescopic rod 21 is passed through the left end of the pressing plate 2 and is fixedly connected to the pressing plate 2 to drive the pressing plate 2 to rotate and move up and down so that the pressing plate 2 leaves or presses the mold base 1.

[0062] The pressing plate 2 is introduced below. The pressing plate 2 is a rectangular plate, and its lower end has two rows of arc grooves 22 extending left and right and adapted to the outer peripheral surface of each drawing die in the die base 1. The arc groove 22 has three spherical balls 23 arranged left and right along the arc curve, which are used to push the drawing die and cooperate with the screw rod 13 to rotate the drawing die.

[0063] The die plate 2 has an oil delivery pipeline 24 inside, and the oil delivery pipeline 24 has multiple oil delivery holes 25 downwardly corresponding to the die holes of the wire drawing die, so that the lubricating oil can enter the die holes of the wire drawing die through the oil delivery holes 25 and flush the waste chips around the die holes; the oil delivery pipeline 24 is provided with an oil filling hole 26 at the left end surface of the die plate 2 for injecting lubricating oil.

[0064] Next, the wire conveying mechanism 3 is introduced. The wire conveying mechanism 3 is located above the pressing plate 2, and is provided with a conveying component 31, a cutting component 33, a stretching component 32, a mold support 35 and a traction component 34 from right to left. Among them, the conveying component 31, the stretching component 32 and the traction component 34 are all provided with helical gears that move in opposite directions and cooperate with each other, so as to drive the copper wire to move to the left side through the extrusion and rotation of the opposite helical gears; in addition, the helical gears at the front end of the conveying component 31, the stretching component 32 and the traction component 34 are the driving wheels fixed on the pressing plate 2, and the helical gears at the rear end are the driven wheels provided on the moving part.

[0065] The movable member is a C-shaped frame 36 located at the rear end of the pressing plate 2 and arranged in the left and right directions of the front edge. Two tapered blocks 27 extending forward and backward are arranged in parallel at the rear end of the pressing plate 2. The C-shaped frame 36 has two tapered grooves 365 corresponding to the tapered blocks 27, which are used to cooperate with the tapered blocks 27 to play a guiding role. An iron block 364 is fixedly provided at the lower end of the C-shaped frame 36. An electromagnet 28 fixed to the pressing plate 2 is provided on the front side of the C-shaped frame 36, which is used to attract the iron block 364 so that the C-shaped frame 36 moves forward under the guidance of the tapered block 27; a C-shaped frame 361 with an opening fixed in the up and down directions of the front edge is provided at the front end of the convex blocks on the left and right sides of the C-shaped frame 36, which is used to support the rear end bevel gears of the conveying assembly 31 and the traction assembly 34, and a reset spring 366 placed forward and backward is provided on the lower side of the C-shaped frame 36, and the reset spring 366 is fixed on the C-shaped frame 36 for resetting the C-shaped frame 36.

[0066] The bevel gear at the front end of the conveying assembly 31 is the main conveying wheel 311, and a main conveying wheel shaft 312 is provided in the center thereof. A gantry is provided at the lower end of the main conveying wheel 311, which is defined as gantry one 316 for supporting and fixing the main conveying wheel 311. A pulley is provided at the lower side of the gantry one 316, which is defined as pulley three 315. The pulley three 315 is connected to the main conveying wheel 311 through the main conveying wheel shaft 312, and is used to drive the main conveying wheel 311 to rotate counterclockwise.

[0067] The helical gear at the rear end of the conveying assembly 31 is a slave conveying wheel 313, and a slave conveying wheel shaft 314 is provided at the center of the slave conveying wheel 313. The slave conveying wheel 313 is horizontally penetrated in the C-shaped frame 361 through the slave conveying wheel shaft 314 to cooperate with the main conveying wheel 311 to drive the copper wire to move to the left.

[0068] The bevel gear at the front end of the stretching component 32 is the main stretching wheel 321, and a main stretching wheel shaft 322 is provided in the center thereof. A gantry is provided at the lower end of the main stretching wheel 321, which is defined as gantry 2 326 for supporting and fixing the main stretching wheel 321. A motor is provided at the lower side of gantry 2 326, which is defined as motor 2 325. Motor 2 325 is connected to the main stretching wheel 321 through the main stretching wheel shaft 322, and is used to drive the main stretching wheel 321 to rotate counterclockwise.

[0069] The helical gear at the rear end of the stretching assembly 32 is a slave stretching wheel 323, a slave stretching wheel shaft 324 is provided in the center of the slave stretching wheel 323, a C-shaped seat 362 with an opening arranged in the up and down directions toward the front edge is provided at the rear end of the slave stretching wheel 323, the slave stretching wheel 323 is horizontally movable through the slave stretching wheel shaft 324 and is inserted into the C-shaped seat 362, and a cylindrical electric push rod 363 is fixed to the middle of the C-shaped frame 36 at the rear end of the C-shaped seat 362 to push the slave stretching wheel 323 to cooperate with the main stretching wheel 321 and drive the copper wire to move to the left; wherein, the rotation speed of the main stretching wheel 321 is greater than the rotation speed of the main conveying wheel 311, so as to stretch the copper wire to make it thinner.

[0070] The cutting assembly 33 includes a swivel 331 and a matching plate 334. The swivel 331 is located on the right side of the stretching wheel 323, and a cylindrical fixed column 332 fixed on the pressing plate 2 is provided at the center of the swivel 331. The swivel 331 is sleeved on the upper end of the fixed column 332. A torsion spring 3313 is provided between the swivel 331 and the fixed column 332 for resetting the swivel 331. The outer peripheral surface of the right side of the swivel 331 is provided with a cutter 3312 extending up and down for cutting the copper wire. The upper and lower surfaces of the swivel 331 are provided with a rectangular baffle 3311 extending to the left. The upper and lower ends of the C-shaped seat 362 are provided with a rectangular shift bar 333 extending to the right, which is used to push the baffle bar 3311 through the shift bar 333 during the retraction of the electric push rod 363 to make the swivel 331 rotate clockwise.

[0071] The matching plate 334 is a rectangular plate extending left and right and vertically arranged between the main conveying wheel 311 and the main stretching wheel 321, and has two vertical support plates 335 inclined from front to back toward the middle on its rear side, and the front ends of the support plates 335 are respectively fixedly connected to the left side of the gantry frame 1 316 and the right side of the gantry frame 2 326; a horizontally extending rectangular guide plate 336 for guiding the copper wire is provided in the middle of the rear side of the matching plate 334, and the guide plate 336 is interrupted at the corresponding position of the cutter 3312 to cooperate with the cutter 3312 to cut the copper wire.

[0072] The mold support 35 is a rectangular block, and its right end has a fixing groove 351 that is open to the right and upper sides for placing the wire drawing die. The bottom surface of the fixing groove 351 has an arc surface that matches the outer peripheral surface of the wire drawing die. The left end of the mold support 35 has a through groove 352 that opens upward and extends left and right at a position corresponding to the die hole of the wire drawing die, so that the copper wire can pass through the mold support 35.

[0073] The bevel gear at the front end of the traction assembly 34 is the main traction wheel 341, and a main traction wheel shaft 342 is provided at the center thereof. A gantry is provided at the lower end of the main traction wheel 341, which is defined as a gantry three 345. A pulley is provided below the gantry three 345, which is defined as a pulley four 347. A motor fixed on the pressing plate 2 is provided below the pulley four 347, which is defined as a motor three 346, which is used to drive the main traction wheel 341 and the pulley four 347 to rotate. At the same time, a belt is sleeved on the pulley four 347 and the pulley three 315, which is defined as a belt two 348, so that the motor three 346 drives the main conveying wheel 311 to rotate through the belt transmission; the mold bracket 35 is provided with a rectangular through groove 353 connected to the left and right on the moving path of the belt two 348, which is used to avoid the pulley two 15 to pass through.

[0074] The helical gear at the rear end of the traction assembly 34 is a slave traction wheel 343, a slave traction wheel shaft 344 is provided at the center thereof, and the slave traction wheel 343 is horizontally penetrated on the C-shaped frame 361 through the slave traction wheel shaft 344 to cooperate with the main traction wheel 341 to drive the copper wire to move leftward.

[0075] The working principle of the wire feeding device of the copper wire drawing machine provided by the present invention is:

[0076] First, the copper wire end is placed between the conveying assembly 31 and the stretching assembly 32, and then the electromagnet 28 is energized. The electromagnet 28 attracts the iron block 364 to make the C-shaped frame 36 move to the front end under the guidance of the conical block 27, so that the main conveying wheel 311 cooperates with the slave conveying wheel 313, and the main stretching wheel 321 cooperates with the slave stretching wheel 323 to clamp the copper wire. At this time, the motor 2 325 and the motor 346 are started, and the motor 346 drives the pulley 4 through the main traction wheel shaft 342 347 rotates counterclockwise, pulley four 347 drives pulley three 315 to rotate counterclockwise through belt two 348, pulley three 315 drives main conveying wheel 311 to rotate counterclockwise through main conveying wheel shaft 312, motor two 325 drives main stretching wheel 321 to rotate counterclockwise through main stretching wheel shaft 322, and at the same time, the rotation speed of motor two 325 is greater than the rotation speed of motor three 346, so that the speed of the front end of the copper wire is greater than the speed of the rear end of the copper wire, so that the end of the copper wire can be stretched to make it thinner.

[0077] Next, stop motor 2 325 and motor 346, and then start the electric push rod 363, which retracts and moves toward the rear end, driving the slave stretching wheel 323 to move toward the rear end. At this time, the main stretching wheel 321 and the slave stretching wheel 323 no longer clamp the copper wire; while the electric push rod 363 moves backward, it drives the levers 333 on the upper and lower sides of the C-shaped seat 362 to push the blocking bar 3311, and the blocking bar 3311 is subjected to force to cause the swivel 331 to rotate clockwise around the fixed column 332, so that the cutter 3312 cooperates with the matching plate 334 to cut off the unstretched part of the copper wire end, so that the remaining part can pass through the die hole of the wire drawing die, and then the swivel 331 is rotated and reset under the action of the internal torsion spring 3313.

[0078] Next, start motor 2 325, and the conveying component 31 drives the copper wire to move to the left end, so that the copper wire is inserted into the die hole of the wire drawing die placed inside the die bracket 35, and then the copper wire is stretched forward a certain distance through the cooperation of the traction component 34, and the electromagnet 28 is controlled to be powered off. The C-shaped frame 36 moves to the rear end and resets under the action of the reset spring 366. At this time, the wire drawing die that has been threaded is placed in the corresponding position of the die base 1 and the copper wire end is pulled around the wire conveying roller (not shown in the figure) for one circle, and the above operation is repeated.

[0079] After placing multiple wire drawing dies on the die base 1, the pressing plate 2 is controlled by the rotating cylinder 18 to rotate to the top of the die base 1 and press down tightly. At this time, the motor 17 is started, and the motor 17 drives the two screw rods 13 to rotate through the belt transmission. Since the lower end of the wire drawing die is in contact with the spiral structure 131 of the screw rod 13, the wire drawing die is driven by the screw rod 13 to intermittently rotate, which can reduce the wear degree of the wire drawing die hole in the same area and improve the drawing quality of the copper wire.

[0080] At the same time, the lubricating oil is injected into the oil pipeline 24 through the oil filling hole 26 under the action of an external delivery pump (not shown in the figure), and then flows to the corresponding wire drawing die hole through the oil delivery hole 25. While cooling and lubricating the copper wire, it can also reduce the probability of waste chips entering the wire drawing die hole and reduce the wear of the wire drawing die.

[0081] Embodiment 2 of the wire feeding device of the copper wire drawing machine provided by the present invention:

[0082] The main difference between it and Example 1 is:

[0083] In Example 1, the conveying assembly is connected to the traction assembly through a belt drive, and then the traction assembly is driven by motor three to achieve synchronous rotation.

[0084] In this embodiment, the conveying component can be driven by a motor alone and can be controlled by PLC to achieve synchronous rotation with the traction component.

[0085] Embodiment 3 of the wire feeding device of the copper wire drawing machine provided by the present invention:

[0086] The main difference between it and Example 1 is:

[0087] In Example 1, the two screw rods on the mold base are driven by motor 1 through belt transmission to rotate synchronously.

[0088] In this embodiment, the two screw rods can be driven by separate motors and do not need to be synchronized in speed.

[0089] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "width", "horizontal", "top", "bottom", "inside", "outside" and the like, which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the devices or elements involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

[0090] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. A wire feeding device for a copper wire drawing machine, comprising a die seat, one side of which has a pressing plate for pressing down the wire drawing die, the end where the pressing plate is located is defined as the front end, characterized in that: A spiral rod extending forward and backward is provided in the die seat, so that the outer edge of the spiral rod contacts the lower end of the wire drawing die during the rotation process, thereby driving the wire drawing die to rotate intermittently; The pressing plate is provided with a conveying assembly and a stretching assembly, the stretching assembly is located on the left side of the conveying assembly, and both the conveying assembly and the stretching assembly include two helical gears arranged front and back opposite to each other and cooperating with the copper wire clamping, and the helical gear speed of the stretching assembly is higher than the helical gear speed of the conveying assembly, so as to stretch the copper wire end to make it thinner; The pressing plate is also provided with a cutting assembly, which is located between the conveying assembly and the stretching assembly, and includes a swivel and a matching plate. The swivel is located at the rear end of the pressing plate, and one side of the outer peripheral surface of the swivel is provided with a vertical cutter along the axial direction. The matching plate is located at the front side of the swivel, and is used to cooperate with the cutter to cut the copper wire; The helical gear at the front end of the conveying assembly is the main conveying wheel, and the lower end of the main conveying wheel has a gantry frame fixed on the pressure plate, which is defined as gantry frame one, and a pulley is provided at the lower end of the gantry frame, which is defined as pulley three, for driving the main conveying wheel to rotate; the helical gear at the rear end of the conveying assembly is the slave conveying wheel, and the rear end thereof has a C-shaped frame with an opening arranged in the left and right directions toward the front edge, and the left and right ends of the C-shaped frame have C-shaped frames, and the slave conveying wheel is horizontally penetrated in the C-shaped frame through an axle body to cooperate with the main conveying wheel to drive the copper wire to move to the left; A rotating cylinder is provided at the front end of the mold base, and the rotating cylinder has a telescopic rod, and the upper end of the telescopic rod is fixedly connected to the die plate to drive the die plate to rotate and move vertically through the rotating cylinder; A mold bracket is provided on the left side of the stretching component. The mold bracket is a rectangular block, and its right end has a fixing groove for placing the wire drawing die. The left end of the mold bracket has a through groove opening upward and extending left and right at a position corresponding to the die hole of the wire drawing die.

2. The wire feeding device of the copper wire drawing machine according to claim 1, characterized in that: The mold base has two rows of parallel placement grooves along the front-to-back direction, and a plurality of limiting rollers are arranged in the placement grooves for positioning and supporting the wire drawing die; the screw rods are located below the limiting rollers, and a motor is arranged at the front end of one of the screw rods, which is defined as motor one, and pulleys are arranged at the front ends of the two screw rods so that motor one drives the screw rods to rotate through belt transmission.

3. The wire feeding device of the copper wire drawing machine according to claim 2, characterized in that: The rear end of the pressing plate is provided with a plurality of tapered blocks extending forward and backward in parallel, and the lower end of the C-shaped frame has a tapered groove corresponding to the tapered block, which is used to cooperate with the tapered block for guiding; an iron block is fixedly provided at the lower end of the C-shaped frame, and an electromagnet is provided on the pressing plate at the front side of the C-shaped frame to attract the iron block and move the C-shaped frame forward; the lower ends of the left and right sides of the C-shaped frame have return springs extending forward and backward.

4. The wire feeding device of the copper wire drawing machine according to claim 3, characterized in that: The front end bevel gear of the stretching assembly is the main stretching wheel, and the lower end thereof is provided with a gantry frame fixed on the pressing plate, which is defined as gantry frame 2, and the lower end of gantry frame 2 is provided with a motor, which is defined as motor 2; The helical gear at the rear end of the stretching assembly is a slave stretching wheel, which is located in the middle of the C-shaped frame. A cylindrical electric push rod is provided in the middle of the C-shaped frame along the front-to-back direction. The front end of the electric push rod has a C-shaped seat. The slave stretching wheel is horizontally installed in the C-shaped seat through an axle to push the slave stretching wheel so that it cooperates with the main stretching wheel to stretch the copper wire.

5. The wire feeding device of the copper wire drawing machine according to claim 4, characterized in that: The swivel is located on a fixed column arranged on the right side of the stretching wheel, and has square baffles extending radially on the upper and lower sides of the swivel, and has square shift bars extending rightward on the upper and lower ends of the C-shaped seat on the right side, and the square shift bars are used to push the baffle bars; a torsion spring is sleeved between the swivel and the fixed column; the front side of the matching plate has two vertical support plates inclined from front to back to the middle part, and the front ends of the support plates are fixedly connected to the gantry frame one and the gantry frame two respectively, and a horizontally extending guide plate is provided in the middle of the rear side of the matching plate.

6. The wire feeding device of the copper wire drawing machine according to claim 5, characterized in that: A traction assembly is provided on the left side of the mold bracket, which includes a main traction wheel. The main traction wheel is located at the front end of the press plate, and a gantry frame fixed on the press plate is provided below the main traction wheel, which is defined as gantry frame three. A motor is provided below the gantry frame three, which is defined as motor three. A pulley is provided between motor three and gantry frame three, which is defined as pulley four. Motor three, pulley four and the main traction wheel are connected through a wheel axle; a belt is provided between pulley four and pulley three, which is defined as belt two; a slave traction wheel is provided at the rear end of the main traction wheel, which is located on the left side of the C-shaped frame and is horizontally penetrated into the C-shaped frame through an axis.

7. The wire feeding device of the copper wire drawing machine according to claim 6, characterized in that: The lower surface of the pressing plate has two rows of arc grooves adapted to the outer peripheral surface of the wire drawing die along the left and right directions, and the inner surface of the arc groove has a plurality of ball bearings equidistantly arranged along the arc curve; an oil pipeline is horizontally arranged in the pressing plate, and the oil pipeline has an oil hole downwardly corresponding to the position of the wire drawing die hole on the die seat, and the oil pipeline has an oil filling hole on the left end face of the pressing plate, and the bottom surface of the placement groove has a plurality of oil drainage grooves opening downward.

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