A fully automatic flat metal strip winding device

Abstract

The present invention relates to the field of metal strip winding technology, and in particular to a fully automatic flat metal strip winding device, comprising a spindle motor, wherein the output end of the spindle motor is connected to a laterally arranged driving spindle; a worm is mounted on the driving spindle, and the worm is connected to a winding shaft, a wire arrangement device, and a turbine transmission of a reverse tension device. After adopting the above structure, the present invention directly completes all the steps required in the winding process through a three-part power structure of a spindle motor driven by a turbine and worm, and will not cause problems such as wire jamming due to fluctuations in the size of the flat metal strip. When it is necessary to wind flat metal strip coils of different specifications, it is only necessary to replace winding shafts of different diameters. The whole machine has a compact structure, a very low equipment manufacturing cost, a very low use cost, and a higher reliability of use than existing flat metal strip winding machines.

Description

Technical Field

[0001] The invention relates to the technical field of metal strip winding, in particular to a fully automatic flat metal strip winding device. Background Art

[0002] After years of development, the enameled wire industry has been widely used in all walks of life. It plays an indispensable role in various electrical and electronic components, from headphones and watches to generators and transformers. At present, the enameled wire industry as a whole is developing from low value-added enameled round wire to enameled flat wire. At the same time, the enameled copper wire winding machine equipment industry also needs to transition from round wire winding machines to flat wire winding machines.

[0003] In the prior art, the main structure of a winding machine for flat metal wires such as enameled flat wires is to extrude and feed the wire through a driving roller and complete the winding work through a mold. The prior art is not reliable in actual use, and the wire is easily twisted and stuck in the wire feeding hole when the driving roller extrude and feeds the wire. The mold has high requirements, and the cost of frequently replacing molds of different specifications is high.

[0004] like Figure 1 As shown, the existing flat enameled copper strip winding machine drives the rubber roller to extrude the metal flat strip, and extrude it into the mold in the guide groove. Due to the different specifications and yield strengths of the metal flat strip materials, it is very easy to get stuck in the groove during the extrusion and transmission process, and the accumulated debris in the mold is very easy to get stuck in the mold. In addition, the mold cannot be used after it is slightly worn in daily use to avoid scratching the metal flat strip, and the specific mold needs to be replaced when winding into coils of different diameters, which has a high cost of use. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a fully automatic flat metal strip winding device which is not easily stuck in the mold.

[0006] In order to solve the above technical problems, the present invention provides a fully automatic flat metal strip winding device, comprising a spindle motor, wherein the output end of the spindle motor is connected to a transversely arranged driving spindle; a worm is mounted on the driving spindle, and the worm is connected to a winding shaft, a wire arrangement device and a turbine of a reverse tension device through transmission;

[0007] A first turbine is fixed to the lower end of the winding shaft, and the first turbine is matched with the worm gear on the driving main shaft, and a locking sleeve is fixed to the upper end of the winding shaft;

[0008] The wire arrangement device comprises a wire arrangement device, which is fixed on a wire arrangement shaft, a second turbine is fixed on the lower end of the wire arrangement shaft, and the second turbine is matched with a worm gear on the driving main shaft; a wire arrangement frame is fixed on the side of the wire arrangement device;

[0009] The reverse tension device comprises an electromagnetic clutch and a rubber roller. One side of the electromagnetic clutch is connected to the rubber roller through a synchronous pulley, and the other side is fixed with a third turbine. The third turbine cooperates with the worm gear on the driving main shaft.

[0010] Preferably, detection switches are provided at the upper and lower limit positions of the cable arranger.

[0011] After adopting the above structure, the present invention directly completes all the steps required in the winding process through the three-part power structure of the main shaft motor driven by the worm gear, and will not cause problems such as wire jamming due to the fluctuation of the size of the flat metal strip. When it is necessary to wind flat metal strip coils of different specifications, it is only necessary to replace the winding shafts of different diameters. The whole machine has a compact structure, low equipment manufacturing cost, low use cost, and higher use reliability than the existing flat metal strip winding machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0013] Figure 1 It is a structural schematic diagram of a flat enameled copper tape winding machine in the prior art.

[0014] Figure 2-1 A front view of a flat metal strip winding machine according to the present invention.

[0015] Figure 2-2 It is a rear view of the flat metal strip winding machine involved in the present invention.

[0016] Figure 3 The invention discloses a schematic diagram of a winding shaft and its auxiliary mechanism involved in a flat metal strip winding machine.

[0017] Figure 4 The invention discloses a schematic diagram of synchronous operation of winding and arranging of a flat metal strip winding machine.

[0018] Figure 5 It is a schematic diagram of three mechanisms of a main shaft motor synchronously driving a winding shaft, a wire arrangement shaft and a reverse tension rubber roller involved in a flat metal strip winding machine of the present invention.

[0019] Figure 6 The invention discloses a schematic structural diagram of a wire arrangement mechanism and its auxiliary devices involved in a flat metal strip winding machine.

[0020] Figure 7 The invention discloses a schematic structural diagram of a reverse tension rubber roller and its auxiliary devices involved in a flat metal strip winding machine according to the present invention.

[0021] In the figure: 1 is the main shaft motor, 2 is the winding shaft, 3 is the locking sleeve, 4 is the first turbine, 5 is the second turbine, 6 is the wire arrangement device, 7 is the wire arrangement shaft, 8 is the rubber roller, 9 is the third turbine, 10 is the electromagnetic clutch, 11 is the synchronous pulley, 12 is the driving main shaft, and 13 is the wire arrangement rack DETAILED DESCRIPTION

[0022] like Figure 2-1 and Figure 2-2 As shown, a fully automatic flat metal strip winding device of the present invention comprises a spindle motor 1, the output end of the spindle motor 1 is connected to a transversely arranged driving spindle 12; a worm is mounted on the driving spindle 12, and the worm is connected to the winding shaft 2, the wire arrangement device and the turbine of the reverse tension device. The turbines of the winding shaft 2, the wire arrangement device and the reverse tension device are respectively the first turbine 4, the second turbine 5 and the third turbine 9, and three worm transmission components are respectively mounted on the driving spindle 12 corresponding to the three turbines. Figure 5 As shown, the worm part on the driving main shaft 12 connected with the first turbine 4, the second turbine 5 and the third turbine 9 is composed of three separate worm sleeves, which are locked with the driving main shaft 12 by locking nuts. When the spindle motor 1 starts to rotate, the output torque is provided to the winding shaft 2, the wire arrangement device 6 and the rubber roller 8 respectively through the driving main shaft 12 and the first turbine 4, the second turbine 5 and the third turbine 9. The specific transmission structure is as follows.

[0023] like Figure 3 and Figure 4 As shown, a first turbine 4 is fixed to the lower end of the winding shaft 2, and the first turbine 4 cooperates with the worm gear on the driving main shaft 12, and a locking sleeve 3 is fixed to the upper end of the winding shaft 2. Figure 3 As shown, the winding shaft 2 is divided into two parts, the lower part of which is connected to the first turbine 4 through a pin key, and the winding shaft 2 is driven to rotate by the turbine worm structure, wherein the upper part of the winding shaft 2 is connected to the lower part through a threaded connection (the rotation direction of the locking thread is opposite to the rotation direction of the winding shaft 2), and the upper part of different diameters can be quickly disassembled and replaced according to the different diameters of the wound metal flat strip coil.

[0024] like Figure 4 , Figure 5 and Figure 6As shown, the wire arrangement device includes a wire arrangement device 6, which is fixed on the wire arrangement shaft 7. The lower end of the wire arrangement shaft 7 is fixed with a second turbine 5, and the second turbine 5 cooperates with the worm gear on the driving main shaft 12; a wire arrangement frame 13 is fixed on the side of the wire arrangement device 6. A locking sleeve 3 is arranged on the upper part of the winding shaft 2, and the end of the metal flat wire is fixed on the side of the winding shaft 2 by screw tightening. When the winding shaft 2 is driven to rotate by the first turbine 4, the metal flat wire fixed on the side of the winding shaft 2 is rotated and stretched. During this rotation and stretching process, the wire arrangement frame 13 keeps rising synchronously under the action of the wire arrangement device 6, so as to finally form a flat metal wire coil. Among them, the wire arrangement frame 13 rises to the height of the thickness of the metal flat wire for each rotation of the winding shaft 2. When producing metal flat belt coils of different thickness specifications, the thread pitch pointer of the wire arrangement device 6 can be adjusted to adjust the height of the wire arrangement device 6 and the wire arrangement frame 13 when the wire arrangement shaft 7 rotates one circle. In order to prevent mechanical failure, detection switches can be configured at the upper and lower limit positions of the cable arranging device to provide interlocking protection when the cable arranging device moves upward or downward. Figure 6 As shown, the wire arranging device 6 is fixed with a nut to the wire arranging frame 13, wherein the fixing hole of the wire arranging frame 13 is a long bar-shaped hole, and the height of the initial position can be adjusted according to the actual use situation. When the wire arranging device 6 rotates forward on the wire arranging shaft 7, it drives the wire arranging frame 13 to rise together, and when the wire arranging device 6 rotates reversely on the wire arranging shaft 7, it drives the wire arranging frame 13 to fall together. The thread distance pointer of the wire arranging device 6 can be adjusted to adjust the height of the wire arranging device 6 and the wire arranging frame 13 when the wire arranging shaft 7 rotates one circle, and the height of the wire arranging device 6 and the wire arranging frame 13 rising or falling.

[0025] like Figure 5 and Figure 7 As shown, the reverse tension device includes an electromagnetic clutch 10 and a rubber roller 8. One side of the electromagnetic clutch 10 is connected to the rubber roller 8 through a synchronous pulley 11, and the other side is fixed with a third turbine 9, which cooperates with the worm gear on the driving main shaft 1). Figure 7 As shown, the third turbine 9 is driven by the driving main shaft 12. When the third turbine 9 is driven, the driving force is output by the electromagnetic clutch 10 to the rubber roller 8 through the synchronous pulley 11, wherein the electromagnetic clutch 10 adjusts the controller of the electromagnetic clutch 10 through the single-turn knob potentiometer on the control panel to control the electromagnetic clutch 10 to output the required torque, thereby ensuring that the rubber roller 8 can provide different reverse tensions when dealing with flat metal belts of different specifications.

[0026] Example 1

[0027] Taking flat enameled copper strip as an example, different yield strength materials can be obtained according to different annealing strengths. The yield strength of the material is 130-150 MPa, and the specification is 0.1-0.2 mm × 1.0 mm (thickness × width). The tensile force at the upper yield point is Fupper yield point ≈ 32 N, and the maximum breaking force is Fmaximum breaking force ≈ 50 N. In the process of winding the coil along the thickness direction of the flat metal strip, the tensile force at the upper yield point should be selected as the reference value. In order to reserve sufficient design redundancy for the equipment, the following calculation sets the tensile force provided by the rotating shaft of the equipment at Ftensile force ≥ 100 N.

[0028] Since T = F × r

[0029] The diameter of the winding shaft is R = 20mm, and the radius is r = 10mm. Therefore, the torque required for the winding shaft output is:

[0030] T 绕线轴2 =(100×10)÷1000=1N·M

[0031] The turbine speed ratio i=20, so the torque output by the spindle motor at the winding shaft is:

[0032] T' 绕线轴 =T 绕线轴 ÷i=1÷20=0.05N·M

[0033] The weight of the cable arranging device and its auxiliary bracket is m≤5kg, the diameter of the cable arranging shaft is R=20mm, and the radius is r=10mm, so the torque required for the cable arranging shaft output is:

[0034] F 排线器 =mg

[0035] T 排线轴7 =F 排线器 × 排线轴 ≤(5×9.8×10)÷1000=0.49N·M

[0036] The turbine speed ratio i=20, so the torque output by the spindle motor in the cable arrangement part is:

[0037] T' 排线轴 =T 排线轴 ÷i=0.49÷20=0.0245N·M

[0038] The rubber roller rotates in the opposite direction of the wire running direction under the connection of the electromagnetic clutch, so as to ensure a constant wire-paying tension when the winding shaft is winding. Since the rubber roller and the winding shaft work together to apply a 300N tensile force to the flat enameled copper strip, the torque required for the rubber roller output is already included in the torque required for the winding shaft output, and only the mechanical transmission loss is considered.

[0039] Therefore, the motor torque required by the spindle motor 1 of the whole machine is:

[0040] T' 主轴电机 =T' 绕线轴 +T' 排线轴 =0.05+0.0245=0.0745N·M

[0041] According to the power loss of the equipment's own mechanical transmission mechanism and its actual usage scenario, the motor's rated torque is calculated as 3 times the required torque:

[0042] 3T' 主轴电机 =0.2235N·M

[0043] That is, the rated value of the motor T is ≥ 0.2235N·M

[0044] In this way, a motor with a corresponding rated torque can be selected as the spindle motor. The rated torque of a 0.1kw servo drive motor is 0.32N·M, the yield strength of the material used in Example 1 is 130-150mpa, and the flat enameled copper tape winding machine with a specification of 0.1-0.2mm×1.0mm (thickness×width) selects this type of motor as the spindle motor, which can meet the specifications of the flat enameled copper tape to wind a flat coil with a diameter of 20mm.

[0045] The speed of the 0.1kw servo motor is n = 3000rpm, so when the winding shaft worm gear ratio i = 20 and the winding shaft diameter R = 20mm

[0046] v 线速度 =(n÷i)×πR=((3000÷20)×3.14×20)÷1000=9.42m / min

[0047] The maximum operating speed of the whole machine is 9.42m / min

[0048] Example 2

[0049] Taking flat enameled copper strip as an example, different yield strength materials can be obtained according to different annealing strengths. The yield strength of the material is 110-140 MPa, and the specifications are 0.2-0.3 mm × 5.0-6.0 mm (thickness × width). The tensile force at the upper yield point is Fupper yield point≈150 N, and the maximum breaking force is Fmaximum breaking force≈300 N. In the process of winding the coil along the thickness direction of the flat metal strip, the tensile force at the upper yield point should be selected as the reference value. In order to reserve sufficient design redundancy for the equipment, the following calculation sets the tensile force provided by the rotating shaft of the equipment at Ftensile force ≥400 N.

[0050] Since T = F × r

[0051] The diameter of the winding shaft R = 50mm, so the torque required for the winding shaft output is:

[0052] T 绕线轴2 =(400×50) / 1000=20N·M

[0053] The turbine speed ratio i=40, so the torque output by the spindle motor at the winding shaft is:

[0054] T' 绕线轴 =T 绕线轴 / i=20 / 40=0.5N·M

[0055] The weight of the cable arranging device and its auxiliary bracket is m≤5kg, and the diameter of the cable arranging shaft is R=20mm, so the torque required for the cable arranging shaft output is:

[0056] T 排线轴7 =F 排线器 × 排线轴 ≤(5×9.8×10) / 1000=0.49N·M

[0057] The turbine speed ratio i=40, so the torque output by the spindle motor in the cable arrangement part is:

[0058] T' 排线轴 =T 排线轴 / i=0.49 / 40=0.01225N·M

[0059] The rubber roller rotates in the opposite direction of the wire running direction under the connection of the electromagnetic clutch, so as to ensure a constant wire-paying tension when the winding shaft is winding. Since the rubber roller and the winding shaft work together to apply a 400N tensile force to the flat enameled copper strip, the torque required for the rubber roller output is already included in the torque required for the winding shaft output, and only the mechanical transmission loss is considered.

[0060] Therefore, the motor torque required by the spindle motor 1 of the whole machine is:

[0061] T' 主轴电机 =T' 绕线轴 +T' 排线轴 =0.5+0.01225≤0.52N·M

[0062] According to the power loss of the equipment's own mechanical transmission mechanism and its actual usage scenario, the motor's rated torque is calculated as 3 times the required torque:

[0063] 3T' 主轴电机 =1.56N·M

[0064] That is, the rated value of the motor T is ≥1.56N·M

[0065] In this way, a motor with a corresponding rated torque can be selected as the spindle motor. The rated torque of the 0.75kw servo drive motor is 2.39N·M, the yield strength of the material used in Example 2 is 110-140mpa, and the flat enameled copper tape winding machine with a specification of 0.2-0.3mm×5.0-6.0mm (thickness×width) can be selected to use this type of motor as the spindle motor, which can meet the specifications of the flat enameled copper tape to wind a flat coil with a diameter of 50mm.

[0066] The speed of the 0.75kw servo motor is n=3000rpm, so when the winding shaft worm gear ratio i=40 and the winding shaft diameter R=50mm,

[0067] v 线速度 =(n÷i)×πR=((3000÷40)×3.14×50)÷1000=1.194m / min

[0068] The maximum operating speed of the whole machine is 1.194m / min.

[0069] Although specific embodiments of the present invention are described above, those skilled in the art should understand that these are merely examples and that various changes or modifications may be made to the embodiments without departing from the principles and essence of the present invention. The scope of protection of the present invention is limited only by the appended claims.

Claims

1. A fully automatic flat metal strip winding device, Features: It comprises a spindle motor (1), the output end of the spindle motor (1) being connected to a transversely arranged driving spindle (12); a worm is sleeved on the driving spindle (12), and the worm is drivingly connected to a winding shaft (2), a wire arrangement device and a turbine of a reverse tension device; A first turbine (4) is fixed to the lower end of the winding shaft (2), the first turbine (4) is in driving cooperation with a worm gear on the driving main shaft (12), and a locking sleeve (3) is fixed to the upper end of the winding shaft (2); The wire arrangement device comprises a wire arrangement device (6), the wire arrangement device (6) is fixed on a wire arrangement shaft (7), a second turbine (5) is fixed on the lower end of the wire arrangement shaft (7), the second turbine (5) is matched with a worm gear on a driving main shaft (12); a wire arrangement frame (13) is fixed on the side of the wire arrangement device (6); The reverse tension device comprises an electromagnetic clutch (10) and a rubber roller (8); one side of the electromagnetic clutch (10) is connected to the rubber roller (8) by a synchronous pulley (11); and the other side is fixed with a third turbine (9); the third turbine (9) is matched with a worm gear on a driving main shaft (12).

2. A fully automatic flat metal strip winding device according to claim 1, Features: Detection switches are provided at the upper and lower limit positions of the cable arranger (6).

Images