A covering machine for preparing paper-covered copper flat wire

Abstract

The present application relates to the technical field of coating machine, especially to a paper-coated copper flat wire preparation coating machine.The technical problem of the present application is that different widths of insulating paper need to be used for coating in different situations, and the tensile strength of different widths of insulating paper is different, and the current coating machine is difficult to adjust the running speed of copper flat wire and the pulling force of insulating paper according to the width of insulating paper, which leads to the risk of poor winding effect and insulating paper being pulled off, poor applicability and poor coating effect.A kind of paper-coated copper flat wire preparation coating machine, comprising: a base; an outer shell fixedly connected to the base, the outer shell is provided with an inlet and an outlet on both sides respectively.The present application continuously coats insulating glue on the surface of copper flat wire by sponge, so as to facilitate subsequent coating of insulating paper, and can drive copper flat wire to run while making insulating paper wrap around the surface of copper flat wire coated with insulating glue for coating, which significantly improves the coating efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coating machine, in particular to a paper-coated copper flat wire preparation coating machine. BACKGROUND

[0002] Paper-coated copper flat wire refers to wire material with a wrapping cable paper as an insulating layer. Paper-coated copper flat wire has good insulation performance and mechanical strength, and can withstand high voltage and current. A coating machine is needed in the production process of paper-coated copper flat wire. Traditional coating machines usually adopt a coating method of gluing, winding and advancing in one body to improve the coating efficiency when coating copper flat wire.

[0003] Since different widths of insulating paper need to be used in different situations, the existing coating machine is not convenient to adjust the advancing speed of the copper flat wire according to the width of the insulating paper when coating the copper flat wire, which may cause gaps or accumulation of the insulating paper wound on the copper flat wire. In addition, the tensile force of insulating paper of different widths is different, and the existing coating machine is difficult to adjust the pulling force according to the width of the insulating paper, which may cause the insulating paper to be torn or wound too loosely due to the excessive or insufficient pulling force, thereby adversely affecting the device to adapt to insulating paper of different widths, and the applicability is low, and the coating effect is poor. SUMMARY

[0004] In order to overcome the above-mentioned shortcomings, the present application provides a paper-coated copper flat wire preparation coating machine, which can adjust the advancing speed of the copper flat wire and the pulling force of the insulating paper according to the width of the insulating paper, thereby avoiding the risk of poor winding effect and insulating paper being torn, improving the applicability, and significantly enhancing the coating effect.

[0005] The technical implementation scheme of the present application is: a paper-coated copper flat wire preparation coating machine, comprising:

[0006] a base;

[0007] a housing fixed to the base, the housing having an inlet and an outlet on each side, and a copper flat wire passing between the inlet and the outlet of the housing;

[0008] a motor installed on one side of the housing, the output shaft of the motor being rotatably connected to the housing;

[0009] a coating mechanism provided on the housing and the motor;

[0010] a gluing assembly provided on the housing;

[0011] a compaction assembly provided on the housing;

[0012] a drive mechanism provided on the motor, the housing and the compression assembly.

[0013] Optionally, the covering mechanism comprises: a rotating disc rotatably connected to the shell, the flat copper wire passing through the rotating disc; a gear ring fixed to the rotating disc; a drive gear fixed to the output shaft of the motor and engaged with the gear ring; two fixed rods fixed to the rotating disc; a pipe shaft fixed to each of the two fixed rods, a threaded groove being formed in the pipe shaft; a locking block threadedly connected to the threaded groove of each of the two pipe shafts; a covering disc rotatably connected to each of the two pipe shafts; and two insulating papers wound around each of the two covering discs, one end of each of the two insulating papers being arranged on the copper flat wire.

[0014] Optionally, the gluing assembly comprises: a glue feeding frame fixed to the shell, the top end of the glue feeding frame passing through the shell; and a sponge block arranged in the glue feeding frame and in contact with the surface of the copper flat wire.

[0015] Optionally, the compacting assembly comprises: a limiting frame fixed to the inner wall of the shell; and two side pressing rollers and two normal pressing rollers rotatably connected to the limiting frame.

[0016] Optionally, the normal pressing roller is made of rubber.

[0017] Optionally, the driving mechanism comprises: a transmission shaft fixed to the output shaft of the motor and rotatably connected to the inner wall of the shell; a limiting block fixed to the bottom of the shell; a rotating shaft rotatably connected to the limiting block; two bevel gears fixed to the ends of the transmission shaft and the rotating shaft close to each other and engaged with each other; two transmission gears fixed to the same side of each of the two normal pressing rollers and engaged with each other; a fixed shaft fixed to one side of one of the normal pressing rollers; and a transmission assembly arranged between the fixed shaft and the rotating shaft.

[0018] Optionally, the transmission assembly comprises two counter-arranged stepless variable speed wheels and a leather rope, the two stepless variable speed wheels of the transmission assembly being fixed to the fixed shaft and the rotating shaft respectively, and the leather rope of the transmission assembly being wound around the two stepless variable speed wheels.

[0019] Optionally, the apparatus further comprises an adjusting mechanism arranged on the shell, the adjusting mechanism comprising: a sliding rail frame fixed to the inner wall of the shell; an adjusting screw rotatably connected to the shell; a threaded block threadedly connected to the adjusting screw; an adjusting frame fixed to the threaded block and slidably connected to the sliding rail frame, the leather rope of the transmission assembly passing through the inside of the adjusting frame; and a plurality of rolling balls embedded in the adjusting frame, each of the rolling balls being in contact with the surface of the leather rope of the transmission assembly.

[0020] Optionally, a strip-shaped groove is opened on both sides of the two pipe shafts, the strip-shaped groove is in communication with the inside of the pipe shaft, and a tensioning mechanism is arranged on the pipe shaft, the tensioning mechanism comprises: adjusting shafts rotatably connected to the two pipe shafts respectively; two clamping shafts fixedly connected to the two adjusting shafts respectively, six clamping grooves are opened on the two clamping shafts; friction strips slidably connected to the four strip-shaped grooves respectively, the four friction strips are in contact with the two covering discs respectively; and pressure frames slidably connected to the four friction strips respectively, the side of the pressure frame close to the adjusting shaft is located in one of the clamping grooves, and two compression springs are connected between the pressure frame and the friction strip, and there are a total of eight compression springs.

[0021] Optionally, three clamping grooves on the same side of the clamping shaft are a group, and there are four groups in total, and the distance between the three clamping grooves of each group and the axis of the clamping shaft increases in turn.

[0022] Beneficial effects are: 1, the insulating glue is slowly discharged by the sponge through the glue feeding frame by the external pump, the sponge continuously coats the insulating glue on the surface of the copper flat wire, so as to facilitate the subsequent covering of the insulating paper, the insulating paper can be wound on the surface of the copper flat wire coated with insulating glue while driving the copper flat wire to run, the covering efficiency is significantly improved, and the pipe shaft inclined to the copper flat wire makes the pulled insulating paper obliquely wound on the surface of the copper flat wire, thereby reducing the risk of the copper wire in running state tearing the insulating paper, and the normal pressure roller and the side pressure roller can respectively compact and flatten the four corners and the periphery of the copper flat wire, thereby improving the covering quality and enhancing the covering effect.

[0023] 2, the staff can adjust the running speed of the copper flat wire according to the width of the insulating paper, thereby avoiding the gap or accumulation of the insulating paper wound on the copper flat wire due to the mismatch between the running speed of the copper flat wire and the width of the insulating paper, thereby being able to adapt to insulating paper of different widths, improving the applicability of the device, and further enhancing the covering effect.

[0024] 3, the staff can adjust the rotation resistance of the covering disc according to the width of the insulating paper, thereby improving the covering force of the insulating paper while avoiding the risk of the insulating paper being torn due to the mismatch between the width of the insulating paper and the rotation resistance of the covering disc, further improving the applicability of the device, and further enhancing the covering effect. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a perspective structural schematic diagram of the present application.

[0026] Figure 2 It is a sectional perspective structural schematic diagram of the present application.

[0027] Figure 3 It is a partial sectional perspective structural schematic diagram of the present application.

[0028] Figure 4 It is a partial perspective structural schematic diagram of the present application.

[0029] Figure 5 Partially sectional perspective structure diagram of the covering mechanism and the copper flat wire of the present application.

[0030] Figure 6 Partially exploded perspective structure diagram of the covering mechanism of the present application.

[0031] Figure 7 Perspective structure diagram of the glue applying assembly and the copper flat wire of the present application.

[0032] Figure 8 Partially sectional perspective structure diagram of the glue applying assembly and the copper flat wire of the present application.

[0033] Figure 9 Partially perspective structure diagram of the compacting assembly, the copper flat wire and the transmission gear of the present application.

[0034] Figure 10 Perspective structure diagram of the driving mechanism, the positive pressure roller and the adjusting frame of the present application.

[0035] Figure 11 Perspective structure diagram of the adjusting mechanism and the transmission assembly of the present application.

[0036] Figure 12 Partially sectional perspective structure diagram of the adjusting frame and the transmission assembly of the present application.

[0037] Figure 13 Partially sectional perspective structure diagram of the adjusting frame, the transmission assembly and the ball of the present application.

[0038] Figure 14 Partially exploded perspective structure diagram of the adjusting mechanism of the present application.

[0039] Figure 15 Partially perspective structure diagram of the covering mechanism and the tensioning mechanism of the present application.

[0040] Figure 16 Partially sectional perspective structure diagram of the pipe shaft and the tensioning mechanism of the present application.

[0041] Figure 17 Partially exploded perspective structure diagram of the tensioning mechanism of the present application.

[0042] Markings in the drawings: 1: base, 2: shell, 0: copper flat wire, 3: motor, 41: rotating disc, 42: gear ring, 43: drive gear, 44: fixed rod, 45: tube shaft, 451: strip-shaped groove, 46: locking block, 47: cladding disc, 48: insulating paper, 51: glue conveying frame, 52: sponge block, 61: limiting frame, 62: side pressure roller, 63: normal pressure roller, 71: transmission shaft, 72: limiting block, 73: rotating shaft, 74: bevel gear, 75: transmission gear, 76: fixed shaft, 77: transmission assembly, 81: slide rail frame, 82: adjusting screw, 83: threaded block, 84: adjusting frame, 85: ball, 91: adjusting shaft, 92: clamping shaft, 921: clamping groove, 93: friction strip, 94: pressure receiving frame, 95: compression spring. DETAILED DESCRIPTION

[0043] Embodiments of the present application will be described below with reference to the accompanying drawings.

[0044] Example 1: A cladding machine for preparing paper-wrapped copper flat wire, as shown in the drawings, comprising: Figures 1-16

[0045] a base 1;

[0046] a shell 2 connected to the base 1 by bolts, the shell 2 having an inlet and an outlet on each side, and a copper flat wire 0 passing between the inlet and the outlet of the shell 2;

[0047] a motor 3 installed at the bottom of the inlet side of the shell 2, the output shaft of the motor 3 being connected to the shell 2 in a rotating manner;

[0048] a cladding mechanism for cladding the copper flat wire 0, provided on the shell 2 and the motor 3;

[0049] a glue applying assembly for applying glue to the surface of the copper flat wire 0 before cladding, provided on the shell 2;

[0050] a compacting assembly for flattening the four edges and corners of the copper flat wire 0 after cladding, provided on the shell 2;

[0051] a drive mechanism for driving the copper flat wire 0 to move, provided on the motor 3, the shell 2, and the compacting assembly.

[0052] ​The covering mechanism comprises a rotating disc 41 rotatably connected to the shell 2, and the flat copper wire passes through the rotating disc 41; a gear ring 42 connected to the rotating disc 41 through a key groove; a driving gear 43 connected to the output shaft of the motor 3 through a flat key and engaged with the gear ring 42; two fixed rods 44 symmetrically connected to the rotating disc 41 through bolts; two pipe shafts 45 welded to the two fixed rods 44, the pipe shafts 45 are provided with threaded grooves, and the axes of the two pipe shafts 45 are symmetrically inclined to the copper flat wire 0; two locking blocks 46 threadedly connected to the threaded grooves of the two pipe shafts 45; two covering discs 47 rotatably connected to the two pipe shafts 45, and the locking blocks 46 are used for limiting the covering discs 47 on the pipe shafts 45; two insulating papers 48 wound around the two covering discs 47, and one end of each of the two insulating papers 48 is arranged on the copper flat wire 0, and the insulating paper 48 is used for covering the surface of the copper flat wire 0.

[0053] The glue coating assembly comprises a glue conveying frame 51 connected to the shell 2 through bolts, and the top end of the glue conveying frame 51 passes through the shell 2; and a sponge block 52 arranged in the glue conveying frame 51 and in contact with the surface of the copper flat wire 0, which is used for coating insulating glue on the surface of the copper flat wire 0.

[0054] The compacting assembly comprises a limiting frame 61 welded to the inner wall of the shell 2; two side pressing rollers 62 and two positive pressing rollers 63 rotatably connected to the limiting frame 61, and the side pressing rollers 62 and the positive pressing rollers 63 are respectively used for compacting and flattening the copper flat wire 0 around and at the four corners after covering, and the positive pressing rollers 63 are also used for driving the copper flat wire 0 to advance.

[0055] The positive pressing rollers 63 are made of rubber, which can stably drive the copper flat wire 0 to advance while compacting and flattening the copper flat wire 0.

[0056] The driving mechanism comprises a transmission shaft 71 connected to the output shaft of the motor 3 through a shaft coupling and rotatably connected to the inner wall of the shell 2; a limiting block 72 connected to the bottom of the inner wall of the shell 2 through bolts; a rotating shaft 73 rotatably connected to the limiting block 72; two bevel gears 74 connected to the ends of the transmission shaft 71 and the rotating shaft 73 through key grooves and engaged with each other; two transmission gears 75 connected to the same side of the two positive pressing rollers 63 through key grooves and engaged with each other; a fixed shaft 76 welded to one side of one of the positive pressing rollers 63; a transmission assembly 77 arranged between the fixed shaft 76 and the rotating shaft 73, and the rotating shaft 73 drives one of the positive pressing rollers 63 to rotate through the transmission assembly 77 and the fixed shaft 76.

[0057] The transmission assembly 77 is composed of two counterposed stepless speed change wheels and a leather rope. The two stepless speed change wheels of the transmission assembly 77 are connected to the fixed shaft 76 and the rotating shaft 73 through a flat key respectively. The leather rope of the transmission assembly 77 is wound on the two stepless speed change wheels. The side of the stepless speed change wheel with the smallest diameter is the deceleration end, and the side of the stepless speed change wheel with the largest diameter is the acceleration end. The two sides of the leather rope are located at the deceleration end and the acceleration end of the two stepless speed change wheels respectively.

[0058] Firstly, the staff twists the locking block 46 from the pipe shaft 45 through the thread, and at the same time, the staff puts the two covering discs 47 with the insulating paper 48 wound thereon on the two pipe shafts 45 respectively. Then, the staff twists the locking block 46 back to the pipe shaft 45 to limit the covering disc 47. Then, the staff connects the insulating glue to the top of the glue conveying frame 51 through an external pump and an external pipeline, and starts the external pump. The external pump slowly discharges the insulating glue soaked in the sponge through the glue conveying frame 51. When it is necessary to coat the copper flat wire 0, the staff inserts one end of the copper flat wire 0 to be covered into the shell 2 from the inlet of the shell 2 and passes through the glue conveying frame 51 and the rotating disc 41. At the same time, the surface of the copper flat wire 0 contacts with the sponge soaked with the insulating glue, and the sponge continuously coats the insulating glue on the surface of the copper flat wire 0, so as to facilitate the subsequent covering of the insulating paper 48. The copper flat wire 0 continues to advance and contacts with the side pressing roller 62 and the normal pressing roller 63. At this time, the staff inserts one end of the two insulating papers 48 into the shell 2 from the inlet of the shell 2, and the staff twists the locking block 46 to limit the covering disc 47. Then, the staff inserts the copper flat wire 0 into the shell 2 from the inlet of the shell 2, and the staff twists the locking block 46 to limit the covering disc 47. Figure 4The copper flat wire 0 is pulled out from the covering disc 47 and adhered to the surface of the copper flat wire 0 by the insulating adhesive. When the copper flat wire 0 needs to be covered, the staff starts the motor 3, the output shaft of the motor 3 rotates to drive the transmission shaft 71 and the drive gear 43 to rotate together, the transmission shaft 71 drives the rotating shaft 73 to rotate through the two intermeshing bevel gears 74, the rotating shaft 73 rotates to drive one of the positive pressure rollers 63 to rotate through the transmission assembly 77, and the positive pressure roller 63 rotates to drive the other positive pressure roller 63 to rotate in the opposite direction through the two intermeshing transmission gears 75. In this way, the rotation of the rotating shaft 73 will cause the two positive pressure rollers 63 to rotate in opposite directions through the transmission assembly 77 and the two transmission gears 75, thereby driving the copper flat wire 0 to move towards the discharge opening of the housing 2. At the same time, the drive gear 43 drives the rotating disc 41 to rotate through the gear ring 42, and the rotating disc 41 drives the fixed rod 44, the tube shaft 45, the locking block 46 and the covering disc 47 to rotate together. The rotation of the covering disc 47 drives the two insulating papers 48 to be wound around the surface of the copper flat wire 0 and adhered to the copper flat wire 0 by the insulating adhesive. In this way, the insulating paper 48 can be wound around the surface of the copper flat wire 0 coated with insulating adhesive while the copper flat wire 0 is driven to move, significantly improving the covering efficiency. The tube shaft 45 inclined to the copper flat wire 0 will cause the pulled-out insulating paper 48 to be obliquely wound around the surface of the copper flat wire 0, thereby reducing the risk of the copper wire in the moving state tearing the insulating paper 48. The positive pressure rollers 63 and the side pressure rollers 62 will respectively compact and flatten the copper flat wire 0 around the four corners, thereby improving the covering quality and enhancing the covering effect. After the covering is completed, the copper flat wire 0 passes through the housing 2, the staff turns off the external pump and the motor 3, and then takes out the covered copper flat wire 0.

[0059] Example 2: Based on example 1, as shown in Figures 1-4 and Figures 10-14 Further comprising an adjusting mechanism for adjusting the speed of the copper flat wire 0 by adjusting the transmission assembly 77 according to the width of the insulating paper 48, which is arranged on the housing 2. The adjusting mechanism comprises: a slide rail frame 81 welded on the inner wall of the housing 2; an adjusting screw 82 rotatably connected to the housing 2, the adjusting end of the adjusting screw 82 being located outside the housing 2; a threaded block 83 threadedly connected to the adjusting screw 82; an adjusting frame 84 threadedly connected to the threaded block 83 and slidably connected to the slide rail frame 81, the transmission assembly 77 passing through the inside of the adjusting frame 84, the adjusting frame 84 being used to adjust the position of the transmission assembly 77; a plurality of ball bearings 85 embedded in the adjusting frame 84, each ball bearing 85 being in contact with the surface of the transmission assembly 77, the ball bearings 85 being used to separate the direct contact between the adjusting frame 84 and the transmission assembly 77, so as to avoid the transmission assembly 77 slipping on the stepless speed change wheel due to excessive friction.

[0060] Initially, the position of the leather cord in the transmission component 77 causes the rotating shaft 73 to drive the fixed shaft 76 to rotate faster via the transmission component 77. When a narrower insulating paper 48 is needed to wrap the copper flat wire 0, the operator can rotate the adjusting screw 82 a certain number of turns according to the narrowing of the insulating paper 48. This, in turn, drives the adjusting frame 84 and the ball bearing 85 to move a certain distance closer to the adjusting end of the adjusting screw 82 via the threaded block 83. The movement of the adjusting frame 84 and the ball bearing 85 causes the leather cord of the transmission component 77 to move a certain distance. During the movement, the upper contact diameter of the leather cord in the transmission component 77 increases and the lower contact diameter decreases, which slows down the rotation speed of the rotating shaft 73 and the fixed shaft 76 driven by the transmission component 77. This slows down the travel speed of the copper flat wire 0, thus preventing gaps or accumulation of the insulating paper 48 on the copper flat wire 0 due to a mismatch between the travel speed and the width of the insulating paper 48. This allows the device to adapt to insulating paper 48 of different widths, improving its applicability and further enhancing the wrapping effect.

[0061] Example 3: Based on Example 2, such as Figure 6 and Figures 5-17 As shown, both sides of the two tube shafts 45 have strip grooves 451, which communicate with the interior of the tube shafts 45. A tensioning mechanism is also included, used to change the tension of the insulating paper 48 by adjusting the rotational resistance of the covering disc 47 according to the toughness and strength of the insulating paper 48, thus preventing the insulating paper 48 from breaking. This mechanism is mounted on the tube shafts 45 and includes: adjusting shafts 91 rotatably connected to the two tube shafts 45 respectively; and two retaining shafts 92 connected to the two adjusting shafts 91 respectively via keyways. Each has six slots 921; friction strips 93 are slidably connected to four strip slots 451, and the four friction strips 93 are in contact with two covering discs 47 respectively. The friction strips 93 are used to adjust the rotational resistance of the covering discs 47; pressure frames 94 are slidably connected to the four friction strips 93 respectively. The side of the pressure frame 94 near the adjusting shaft 91 is located in one of the slots 921. Two compression springs 95 are connected between the pressure frame 94 and the friction strips 93, for a total of eight. The locking shaft 92 is used to compress the pressure frame 94.

[0062] The three slots 921 located on the same side of the locking shaft 92 are grouped together, with a total of four groups. The distance between the three slots 921 in each group and the axis of the locking shaft 92 increases sequentially. The three slots 921 in the same group are used to lock the same pressure frame 94 at different distances from the axis of the locking shaft 92.

[0063] When the width of the insulating paper 48 is larger, the worker can rotate the adjusting shaft 91 before starting the motor 3, the adjusting shaft 91 drives the clamping shaft 92 to rotate, the clamping shaft 92 rotates to extrude the pressure frame 94, the pressure frame 94 moves away from the clamping shaft 92 and is clamped into the farther card slot 921 away from the axis of the clamping shaft 92, the friction strip 93 is pressed against the inner side of the covering disc 47 under the action of the compression spring 95, so that the rotating resistance of the covering disc 47 is increased, and then the wider insulating paper 48 can be more fully wrapped on the surface of the copper flat wire 0, when the width of the insulating paper 48 is smaller, the worker reversely rotates the adjusting shaft 91, so that the pressure frame 94 is clamped into the closer card slot 921 away from the axis of the clamping shaft 92, and then the rotating resistance of the covering disc 47 is reduced, so as to avoid the risk that the insulating paper 48 with smaller width is torn off due to larger pulling force, in this way, the worker can adjust the rotating resistance of the covering disc 47 according to the width of the insulating paper 48, and then the risk that the insulating paper 48 is torn off due to the mismatch between the width of the insulating paper 48 and the rotating resistance of the covering disc 47 is avoided, the applicability of the device is further improved, and the wrapping effect is further enhanced.

[0064] The above embodiments are only preferred embodiments of the present application, and are not used to limit the scope of the present application, so that equivalent changes made according to the content described in the claims of the present application should be included in the scope of the claims of the present application.

Claims

1. A coating machine for preparing paper-coated copper flat wire, characterized in that: include: Base (1); The outer shell (2) is fixed to the base (1). The outer shell (2) has an inlet and an outlet on each side. A copper flat wire (0) passes between the inlet and outlet of the outer shell (2). The motor (3) is installed on one side of the housing (2), and the output shaft of the motor (3) is rotatably connected to the housing (2); The covering mechanism is located on the outer shell (2) and the motor (3); The adhesive application assembly is located on the outer casing (2); The compaction assembly is located on the outer casing (2); The drive mechanism is located on the motor (3), the housing (2) and the compression assembly; The covering mechanism includes: a rotating disk (41) rotatably connected to the outer shell (2), through which a flat copper wire passes; a gear ring (42) fixed to the rotating disk (41); a drive gear (43) fixed to the output shaft of the motor (3) and meshing with the gear ring (42); two fixed rods (44) fixed to the rotating disk (41); a tube shaft (45) fixed to each of the two fixed rods (44), with a threaded groove on the tube shaft (45); a locking block (46) threadedly connected to the threaded groove of each of the two tube shafts (45); a covering disk (47) rotatably connected to each of the two tube shafts (45); and insulating paper (48) wound on each of the two covering disks (47), with one end of each insulating paper (48) located on a copper flat wire (0); The compaction assembly includes: a limiting frame (61) fixed to the inner wall of the outer shell (2); two side pressure rollers (62) and two positive pressure rollers (63) rotatably connected to the limiting frame (61). The drive mechanism includes: a transmission shaft (71) fixed to the output shaft of the motor (3) and rotatably connected to the inner wall of the housing (2); a limiting block (72) fixed to the bottom of the housing (2); a rotating shaft (73) rotatably connected to the limiting block (72); two bevel gears (74) fixed to the ends of the transmission shaft (71) and the rotating shaft (73) that are close to each other and mesh with each other; transmission gears (75) fixed to the same side of the two positive pressure rollers (63) and meshing with each other; a fixed shaft (76) fixed to one side of one of the positive pressure rollers (63); and a transmission assembly (77) provided between the fixed shaft (76) and the rotating shaft (73). The transmission assembly (77) consists of two continuously variable transmission wheels arranged in opposite directions and a leather rope. The two continuously variable transmission wheels of the transmission assembly (77) are fixed to the fixed shaft (76) and the rotating shaft (73) respectively. The leather rope of the transmission assembly (77) is wound around the two continuously variable transmission wheels. It also includes an adjustment mechanism, which is located on the outer shell (2). The adjustment mechanism includes: a slide rail frame (81) fixed to the inner wall of the outer shell (2); an adjustment screw (82) rotatably connected to the outer shell (2); a threaded block (83) connected to the adjustment screw (82) by a thread; an adjustment frame (84) fixed to the threaded block (83) and slidably connected to the slide rail frame (81), the leather rope of the transmission component (77) passing through the interior of the adjustment frame (84); and a plurality of balls (85) embedded in the adjustment frame (84), each ball (85) contacting the surface of the leather rope of the transmission component (77).

2. A coating machine for preparing paper-coated copper flat wire according to claim 1, characterized in that: The adhesive application assembly includes: an adhesive feeding frame (51) fixed to the housing (2), the top end of which passes through the housing (2); and a sponge block (52) disposed inside the adhesive feeding frame (51) and in contact with the surface of the copper flat wire (0).

3. A coating machine for preparing paper-coated copper flat wire according to claim 1, characterized in that: The positive pressure roller (63) is made of rubber.

4. A coating machine for preparing paper-coated copper flat wire according to claim 1, characterized in that: Both sides of the two tube shafts (45) are provided with strip grooves (451), which are connected to the inside of the tube shafts (45). The tube shafts (451) are also provided with a tensioning mechanism, which is provided on the tube shafts (45). The tensioning mechanism includes: adjusting shafts (91) that are rotatably connected to the two tube shafts (45); two retaining shafts (92) that are fixed to the two adjusting shafts (91), each retaining shaft (92) having six retaining slots (921); friction strips (93) that are slidably connected to the four strip grooves (451), each of the four friction strips (93) contacting the two covering discs (47); and pressure frames (94) that are slidably connected to the four friction strips (93), the side of the pressure frame (94) near the adjusting shaft (91) being located in one of the retaining slots (921). Two compression springs (95) are connected between the pressure frame (94) and the friction strips (93), for a total of eight springs.

5. A coating machine for preparing paper-coated copper flat wire according to claim 4, characterized in that: There are three slots (921) on the same side of the clasp (92) as a group, and a total of four groups. The distance between the three slots (921) in each group and the axis of the clasp (92) increases sequentially.

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