Background
And arranging copper foil in a region with large potential gradient of the winding of the transformer part to balance the potential gradient of the region, thereby reducing the problem of insulation breakdown caused by too large potential gradient.
The existing copper foil wrapping device of the transformer generally utilizes a cylinder to drive a clamping jaw cylinder to clamp a copper foil, the copper foil is pulled to the transformer, then the transformer rotates to achieve copper foil wrapping, and then the transformer is taken down and transmitted to a station for wrapping an adhesive tape to wind the adhesive tape.
This processing method has a lot of inconveniences:
1. when the clamping jaw works, the air cylinder is required to pause to clamp, the working process is discontinuous, when the copper foil is cut off, the air cylinder is also required to perform feeding action to cut off, and the working process is also discontinuous, so that the processing period is increased;
2. when the transformer is conveyed, the copper foil is only simply wound on the transformer, and the tail end of the copper foil is not fixed, so that part of the copper foil collides with the conveying structure during transferring, the copper foil is loosened, and the adhesive tape is not easy to wind in the next procedure.
3. And some copper foil automatic gluing machines are additionally arranged, and after the copper foil is glued and cut in advance, the copper foil is conveyed to a copper foil wrapping station of the transformer, so that when the transformer is wrapped by the copper foil, the copper foil cannot be continuously glued and the production efficiency is low.
4. Secondly, when the copper foil is cut, because the two blades are cut in a staggered manner, the situation that the cut end of the copper foil is bent downwards or downwards easily occurs, so that the copper foil is not tightly wrapped when the bent end part of the copper foil is wrapped on a transformer, the subsequently wrapped adhesive tape can be scratched by the upward bent end part, and the coil can be scratched by the downward bent end part, so that the phenomenon of electric leakage, short circuit and the like can occur when the transformer is used.
Disclosure of Invention
The invention aims to provide automatic processing equipment for a high-frequency electronic transformer, which solves the problems in the background technology.
The automatic processing equipment for the high-frequency electronic transformer comprises a first unwinding device, a pressing block, a driving device, a limiting plate, a cutting device, a shaping device, a second unwinding device and a winding device;
the unwinding device is used for discharging the copper foil, the two pressing blocks are arranged on the upper side and the lower side of the copper foil respectively, and the two pressing blocks are connected in a sliding mode in the vertical direction;
the pressing block is provided with a cutting device and two shaping devices, and the cutting device is positioned between the two shaping devices;
the driving device is used for driving the lower pressing block to move horizontally and linearly, the upper pressing block is restrained by the limiting plate when moving horizontally along with the lower pressing block, so that the upper pressing block is far away from the lower pressing block when the pressing block moves leftwards, and the copper foil is pressed by the two pressing blocks when the pressing block moves rightwards, so that the copper foil is driven to move rightwards to the working position of the winding device; in the process, the cutting device automatically cuts off the copper foil when passing through a driving block arranged on the rack;
the shaping device is used for leveling the copper foil when the shaping device and the curled copper foil generate relative displacement;
and the winding device is used for sticking the adhesive tape from the unwinding device II to the copper foil and winding the adhesive tape around the coil of the transformer.
Preferably, unwinding device one includes reel one and leading wheel one, leading wheel one is equipped with two to the symmetry sets up from top to bottom, reel one all rotates with the frame with leading wheel one and is connected, reel one still fixed connection is at the output of tensioner one, reel one is equipped with the copper foil book, the outer end of copper foil book upwards passes in the middle of two leading wheels one to extend to the winding device direction.
Preferably, the driving device comprises a linear module, a connecting block, a sliding part and a limiting plate, the connecting block is fixedly connected to a sliding table of the linear module, the connecting block is fixedly connected with a pressing block below, the pressing block above is slidably connected with a guide post on the connecting block through the sliding part, the pressing block below is also horizontally slidably connected with the frame,
preferably, limiting plate and frame fixed connection, be equipped with the ring channel on the limiting plate, the ring channel includes the cross slot, down cross slot, arc wall, the groove and elevated tank rise, the left end of going up the cross slot passes through the arc wall intercommunication with the left end of cross slot down, it can be to the one-way pivoted baffle of elevated tank to be equipped with between groove and the elevated tank to rise, sliding connection has spacing post in the ring channel, the briquetting fixed connection of spacing post and top.
Preferably, cutting device includes cutting off cutter and knife rest, cutting off cutter fixed connection is at the medial surface of knife rest, the lateral surface of knife rest is equipped with the gyro wheel, a traveller sliding connection that sets up on knife rest and the briquetting, and still overlap on the traveller between knife rest and the briquetting and be equipped with spring one.
Preferably, the shaping device comprises a shaping roller, the shaping roller is rotatably connected between the two supporting blocks, the supporting blocks are slidably connected with a sliding column II arranged on the pressing block, and a spring II is sleeved on the sliding column II between the supporting blocks and the pressing block.
Preferably, the winding device comprises a turntable and a first motor, the turntable is rotationally connected with the rack, a conductive sliding ring is arranged at the center of the turntable, the first motor is fixedly connected with the back of the rack, an output shaft of the first motor penetrates through the conductive sliding ring and is fixedly connected with the turntable, the turntable is rotationally connected with two rotating blocks, the rotating blocks are fixedly connected with an output shaft of a second motor, the second motor is fixedly connected with the back of the turntable, and a control wire of the second motor is connected to the controller through the conductive sliding ring. The coil framework is sleeved on the rotating block, the pressing assembly is further arranged above the rotating block on the right side, the pressing assembly comprises a pressing roller and a moving block, a sliding rod is arranged at the top of the pressing roller, the moving block is connected with the sliding rod in a sliding mode, a third spring is sleeved on the sliding rod between the moving block and the pressing roller, and the moving block is fixedly connected to the output end of the first air cylinder;
and a blade is arranged below the rotating blocks and between the two rotating blocks, and the blade is fixedly connected to the output end of the second air cylinder.
Preferably, unwinding device two includes reel two and leading wheel two, reel two and leading wheel two all rotate with the frame to be connected, the output shaft fixed connection of reel two and tensioner two, the below of reel two is located to leading wheel two, be equipped with web-like and insulating sticky tape on reel two, the lower extreme of sticky tape is taken downwards in the left side of leading wheel two to below extending to paste to the coil skeleton on right side.
The invention has the advantages that:
according to the copper foil cutting device, the spacing between the upper pressing block and the lower pressing block at different positions is limited by the limiting plate, so that the copper foil is clamped by the clamping jaw to feed the copper foil, the driving device is not required to stop running in the clamping process, the cutting knife is integrated on the pressing block in the same way, the driving block is used for extruding the cutting knife, the copper foil can be automatically cut when reaching a feeding position, and the feeding device is not required to be paused;
the copper clad foil and the insulating clad are combined and carried out simultaneously, so that the problem of copper foil looseness caused by the fact that the copper clad foil is firstly clad and then the insulating clad is solved, and continuous feeding can be realized;
the shaping device is additionally arranged, so that the copper foil can be leveled when the shaping device and the curled copper foil generate relative displacement, and the phenomenon that the end part of the bent copper foil cuts off an adhesive tape or scratches a coil is avoided.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 8, an automatic processing device for a high-frequency electronic transformer comprises a first unwinding device 1, a pressing block 2, a driving device 3, a limiting plate 4, a cutting device 5, a shaping device 6, a second unwinding device 7 and a winding device 8;
the unwinding device I1 is used for discharging the copper foil 14, the two pressing blocks 2 are respectively arranged on the upper side and the lower side of the copper foil 14, and the two pressing blocks 2 are in sliding connection in the vertical direction;
the pressing block 2 is provided with a cutting device 5 and two shaping devices 6, and the cutting device 5 is positioned between the two shaping devices 6;
the driving device 3 is used for driving the pressing block 2 below to move horizontally and linearly, the pressing block 2 above is restrained by the limiting plate 4 when moving horizontally along with the pressing block 2 below, so that the pressing block 2 on the upper side is far away from the pressing block 2 on the lower side when the pressing block 2 moves leftwards, and the copper foil 14 is pressed by the two pressing blocks 2 when the pressing block 2 moves rightwards, so that the copper foil 14 is driven to move rightwards to the working position of the winding device 8; in this process, the cutting device 5 automatically cuts the copper foil 14 while passing through the driving block 91 provided on the frame 9;
the shaping device 6 flattens the copper foil 14 when the shaping device and the curled copper foil 14 generate relative displacement;
and the winding device 8 is used for adhering the adhesive tape 74 from the second unwinding device 7 to the copper foil 14 and winding the adhesive tape around the coil of the transformer.
In this embodiment, the unwinding device one 1 includes a reel one 11 and a guide wheel one 12, the guide wheel one 12 is provided with two and is disposed in an up-down symmetrical manner, the reel one 11 and the guide wheel one 12 are both rotatably connected to the frame 9, the reel one 11 is further fixedly connected to an output end of the tensioner one 13, the reel one 11 is provided with a copper foil 14 roll, and an outer end of the copper foil 14 roll upwards penetrates through the middle of the two guide wheel one 12 and extends towards the winding device 8. The first and second tensioners 13 and 73 can maintain a certain resistance when the copper foil 14 and the adhesive tape 74 are pulled out, thereby providing tension to the copper foil 14 and the adhesive tape 74.
In this embodiment, the cutting device 5 includes a cutting knife 51 and a knife rest 52, the cutting knife 51 is fixedly connected to an inner side surface of the knife rest 52, a roller 53 is disposed on an outer side surface of the knife rest 52, the roller 53 is pressed towards the middle by the driving block 91 when passing through the driving block 91, the knife rest 52 is slidably connected with a sliding column 54 disposed on the press block 2, and a spring 55 is further sleeved on the sliding column 54 between the knife rest 52 and the press block 2.
In this embodiment, the shaping device 6 includes a shaping roller 61, the shaping roller 61 is rotatably connected between two supporting blocks 62, the supporting blocks 62 are slidably connected with a sliding column two 63 arranged on the pressing block 2, and a spring two 64 is sleeved on the sliding column two 63 between the supporting blocks 62 and the pressing block 2.
In this embodiment, the driving device 3 includes a linear module 31, a connecting block 32, a sliding element 33, and a limiting plate 4, the connecting block 32 is fixedly connected to the sliding table of the linear module 31, the connecting block 32 is fixedly connected to the pressing block 2 below, the pressing block 2 above is slidably connected to the guiding column 34 on the connecting block 32 through the sliding element 33, and the pressing block 2 below is also slidably connected to the frame 9 horizontally.
In this embodiment, the limiting plate 4 is fixedly connected to the frame 9, the limiting plate 4 is provided with an annular groove 41, the annular groove 41 includes an upper transverse groove 411, a lower transverse groove 412, an arc groove 413, a rising groove 414 and a high-level groove 415, the left end of the upper transverse groove 411 is communicated with the left end of the lower transverse groove 412 through the arc groove 413, a baffle 416 capable of rotating in one direction towards the high-level groove 415 is arranged between the rising groove 414 and the high-level groove 415, a limiting column 417 is slidably connected to the annular groove 41, and the limiting column 417 is fixedly connected to the upper pressing block 2.
In this embodiment, the second unwinding device 7 includes a second reel 71 and a second guide pulley 72, both the second reel 71 and the second guide pulley 72 are rotatably connected to the frame 9, the second reel 71 is fixedly connected to an output shaft of the second tension device 73, the second guide pulley 72 is disposed below the second reel 71, a coiled and insulated adhesive tape 74 is disposed on the second reel 71, and a lower end of the adhesive tape 74 is downward lapped on a left side of the second guide pulley 72 and extends and adheres to the right bobbin 83.
In this embodiment, the winding device 8 includes a rotating disk 80 and a first motor 801, the rotating disk 80 is rotatably connected to the frame 9, a conductive slip ring 81 is disposed at the center of the rotating disk 80, the conductive slip ring 81 is used to prevent the connection line of the second motor 821 from winding, the first motor 801 is fixedly connected to the back of the frame 9, and the output shaft of the first motor passes through the conductive slip ring 81 and is fixedly connected to the rotating disk 80, two rotating blocks 82 are rotatably connected to the rotating disk 80, the rotating blocks 82 are fixedly connected to the output shaft of the second motor 821, the second motor 821 is fixedly connected to the back of the rotating disk 80, and the control wire of the second motor is connected to the controller through the conductive slip ring 81. The coil framework 83 is sleeved on the rotating block 82, the pressing assembly 84 is further arranged above the rotating block 82 on the right side, the pressing assembly 84 comprises a pressing roller 841 and a moving block 845, the top of the pressing roller 841 is provided with a sliding rod 842, the moving block 845 is slidably connected with the sliding rod 842, a third spring 843 is sleeved on the sliding rod 842 between the moving block 845 and the pressing roller 841, and the moving block 845 is fixedly connected to the output end of the first cylinder 844;
a blade 85 is arranged below the two rotating blocks 82 and between the two rotating blocks 82, and the blade 85 is fixedly connected to the output end of the second air cylinder 86. The blade 85 is used to cut the tape 74.
The working process and the principle thereof are as follows:
the first tensioner 13 and the second tensioner 73 can keep a certain resistance when the copper foil 14 and the adhesive tape 74 are pulled out, so that the tension of the copper foil 14 and the adhesive tape 74 is provided.
Two bobbins 83 are mounted on the rotary block 82 in advance, and the tape 74 is adhered to the right bobbin 83.
The initial length of the copper foil 14 needs to be corrected and put into use after the copper foil 14 is pulled and cut once,
at first, the limiting column 417 is located at the left end of the lower transverse groove 412, the pressing block 2 above the limiting column 417 is located at the left side and located at the lowest position, so that the copper foil 14 is pressed between the two pressing blocks 2, the linear module 31 drives the connecting block 32 to drive the pressing block 2 below the connecting block to move rightwards, the pressing block 2 above the connecting block moves rightwards under the action of the guide column 34, the limiting column 417 moves horizontally in the lower transverse groove 412, the distance between the two pressing blocks 2 is kept unchanged, and the copper foil 14 is clamped all the time and pulled out rightwards.
When the limiting column 417 reaches the position where the lower transverse groove 412 is connected with the ascending groove 414, the two driving blocks 91 extrude the two rollers 53 towards the middle, so that the two cutter holders 52 drive the cutting knives 51 to approach each other, the copper foil 14 is cut off, and the primary correction work of the head position of the copper foil 14 is completed. Spring one 55 is now compressed.
The linear module 31 drives the press block 2 to move rightwards all the time, the roller 53 moves to the right end of the driving block 91, the roller 53 is not extruded by the driving block 91, and the tool rest 52 is reset under the action of the spring.
When the tool rest 52 is reset, the limiting column 417 enters the ascending groove 414, the upper pressing block 2 can slide upwards relative to the lower pressing block 2 under the action of the guide column 34 and keep a connection relationship with the lower pressing block 2, the distance between the two pressing blocks 2 is increased, the copper foil 14 is not clamped any more, the second spring 64 in the shaping device 6 is kept in a compressed state at first, when the distance between the pressing blocks 2 is increased, the compressed state of the second spring 64 is relieved, the second spring 64 extends for a certain distance, but is still kept compressed, so that the shaping roller 61 is kept in contact with the copper foil 14, when the limiting column 417 slides to the baffle 416, the baffle 416 is jacked up, then the baffle 416 moves to the distance from the leftmost end of the high groove 415 to the rightmost end of the high groove 415, and the shaping roller 61 performs rolling shaping on the end part of the cut copper foil 14, so that the copper foil 14 which bends downwards is flattened.
When the limit post 417 moves to the rightmost end of the high slot 415, the baffle 416 is not limited by the jacking action of the limit post 417, and then rotates to the initial position under the action of gravity, the linear module 31 drives the two pressing blocks 2 to move left and return, the limit post 417 slides obliquely above the left when passing through the baffle 416 and enters the upper cross slot 411, the pressing block 2 above at the moment rises to a certain height, the distance between the two pressing blocks 2 is further enlarged, the pressing block 2 above is maintained at the height and slides leftwards, the pressing block 2 below still keeps the original height and slides leftwards, and the roller 53 passes over the driving block 91 without being interfered by the driving block 91.
When the limiting column 417 moves to the leftmost end of the upper transverse slot 411 and then enters the arc-shaped slot 413, the limiting column 417 falls down, the linear module 31 continues to turn to move rightwards, the limiting column 417 slides from the arc-shaped slot 413 to the leftmost end of the lower transverse slot 412, the pressing block 2 at the moment continues to press the copper foil 14, and the copper foil 14 with a certain length is arranged from the right side of the cutting knife 51 to the right end of the copper foil 14, the operation is repeated, the copper foil 14 is pulled again, the left part of the pulled copper foil 14 is lapped on the coil framework 83 on the left side and moves to the coil framework 83 on the right side, when the left end of the copper foil 14 is positioned on the coil framework 83 on the right side, the roller 53 is also in a state of being pressed by the driving block 91, and the copper foil 14 is cut off again.
The press block 2 is moved rightward while repeating the above operation, and passes through the rising groove 414 to reach the rightmost end of the elevation groove 415, and the left leveling roller 61 finishes leveling the end of the left copper foil 14 of the cutting blade 51. Meanwhile, the first cylinder 844 drives the pressing roller 841 to move left, the adhesive tape 74 is pressed at the right end of the cut copper foil 14, so that the adhesive tape 74 is adhered to the copper foil 14, the rotating block 82 on the right side rotates clockwise, the adhesive tape 74 is driven to be wound on the coil framework 83, the copper foil 14 adhered to the adhesive tape 74 is wound on the coil framework 83, the pressing roller 841 is acted by the coil framework 83 to move up and down, the third spring 843 can keep the pressing roller 841 to press the adhesive tape 74 and the copper foil 14 on the coil framework 83, the copper foil 14 and the adhesive tape 74 are assisted to be wound, and the shortened copper foil 14 can enable the cut end on the left side of the shortened copper foil 14 to be in contact with and leveled with the right leveling roller 61.
After the copper foil 14 is wound, the first cylinder 844 drives the pressing roller 841 to retract, the turntable 80 rotates clockwise for 180 degrees, the left rotating block 82 drives the coil framework 83 at the position to rotate to the right side, the adhesive tape 74 is wound on the coil framework 83 of the left rotating block 82, the coil framework 83 on the right side originally rotates to the left side, the two coil frameworks 83 are exchanged, and then the second cylinder 86 drives the blade 85 to stretch into the space between the two coil frameworks 83, so that the adhesive tape 74 between the two coil frameworks 83 is cut off.
Finally, the bobbin 83 wrapped with the copper foil 14 and the tape 74 is removed by the robot, and a new bobbin 83 is attached.
In the three steps of cutting the tape 74, removing the wrapped bobbin 83, and attaching a new bobbin 83, the stopper 417 slides synchronously on the upper transverse groove 411, and when the stopper 417 moves to the leftmost end of the lower transverse groove 412 again, the three steps are completed, and the second copper-clad foil 14 and the tape 74 can be processed until the next copper foil 14 is fed to a predetermined position. By repeating the above operations, the copper clad laminate 14 and the adhesive tape 74 can be continuously operated at the same time.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.