A paper feeding mechanism for motor insulation paper

Abstract

A paper feeding mechanism for motor insulating paper includes a frame, a conveying assembly, and a feeding assembly. The feeding assembly includes a paper folding mold, a driving mechanism, a paper cutting mechanism, a paper pressing mechanism, and a paper pushing mechanism. The driving mechanism includes a driving gear, a cam, and a driven gear. The paper cutting mechanism includes a lever, a counterweight, a pulley, a rotating rod, a connecting block, a first connecting rod, and a cutter. The driving mechanism can drive the lever and the driving rod to move at the same time. When the lever rotates, the lever will directly drive the cutter to cut paper through the connecting block, and the second connecting rod will continue to rotate a certain distance after the lever, so that the first limiter touches the rotating plate and pushes the rotating plate, and the pressing plate is pressed down to press the paper. The driving rod of the paper pushing mechanism drives the slider to slide, so that the pushing block moves to push the insulating paper that has been folded in the forming groove into the motor frame.

Description

Technical Field

[0001] The invention relates to the technical field of motor stator manufacturing, and in particular to a paper feeding mechanism for motor insulation paper. Background Art

[0002] Coil usually refers to a ring-shaped wire winding. The most common coils are motors, inductors, transformers, and loop antennas. The stator coil usually needs to be provided with insulating paper between the windings to prevent phase short circuit and protect the coil from damage. Figure 8 As shown, a plurality of receiving grooves 110 are arranged at intervals on the outer wall to accommodate insulating paper. However, since insulating paper is generally rolled into a roll for storage, it needs to be processed in multiple steps during production, such as first conveying a roll of insulating paper, then cutting it, bending it into a V shape, and finally feeding it into the receiving groove. The feeding mechanism of the coil insulating paper in the prior art requires multiple steps of processing, resulting in each step requiring a corresponding drive device to drive, so that multiple cylinders or rotating motors need to be set up for driving, making the overall structure bulky and occupying a large area, and simultaneously controlling the movement of multiple drive devices also makes the entire control method more complicated. Summary of the invention

[0003] In view of this, the present invention provides a paper feeding mechanism for motor insulation paper to solve the above technical problems.

[0004] A paper feeding mechanism for motor insulating paper, the paper feeding mechanism for motor insulating paper comprises a frame, a conveying assembly arranged on the frame, and a feeding assembly arranged on the frame. The feeding assembly comprises a paper folding mold, a driving mechanism, a paper cutting mechanism, a paper pressing mechanism, and a paper pushing mechanism. The driving mechanism comprises a driving gear, a cam rotatably arranged on the frame, and a driven gear arranged on the cam. The driving gear meshes with the driven gear. The paper cutting mechanism comprises a lever rotatably arranged on the frame, a counterweight block arranged at one end of the lever, a pulley arranged on the counterweight block, a rotating rod arranged on the frame, a connecting block arranged at one end of the lever, a first connecting rod arranged on the rotating rod, and a cutter arranged on the frame. The counterweight block and the pulley are arranged at one end of the lever, and the connecting block is arranged at the other end. The pulley is attached to the cam, one end of the connecting block is movably connected to the lever, and the other end is movably connected to the rotating rod. One end of the rotating rod is rotatably connected to the frame, and the other end is rotatably connected to the connecting block. The two ends of the first connecting rod are respectively rotatably connected to the cutter and the rotating rod, and the cutter is vertically slidably arranged at one end of the origami mold near the conveying assembly. The paper pressing mechanism includes a rotating plate rotatably arranged on the frame at one end, a second connecting rod connecting the lever and the rotating plate, a first stopper arranged on the second connecting rod, a second stopper arranged on the second connecting rod, a retaining frame arranged on the origami mold, and a pressing plate arranged on the rotating plate. One end of the rotating plate is rotatably connected to the frame, and the other end is rotatably inserted on the pressing plate. One end of the second connecting rod is inserted on one end of the lever, and the other end is movably inserted through the rotating plate. The first stopper is located between the rotating plate and the lever. The rotating plate is located between the second stopper and the first stopper, and the first stopper and the second stopper are arranged at intervals. The paper pushing mechanism includes two slide rails arranged on the frame, a slider slidably arranged on the slide rails, a push block arranged on the slider, and a driving rod connecting the slider and the driving mechanism, one end of the driving rod is rotatably connected to the side wall of the driven gear, and the other end is rotatably connected to the slider.

[0005] Furthermore, the paper feeding mechanism of the motor insulating paper also includes a rotating component arranged on the frame, and the conveying component is used to convey the insulating paper into the feeding component.

[0006] Furthermore, the origami mold is provided with a pre-bending groove, a forming groove arranged on the pre-bending groove, and a pushing groove arranged on the forming groove.

[0007] Furthermore, the pre-bending groove has a V-shaped structure, and an extending direction of the pre-bending groove is the same as an output direction of the conveying assembly.

[0008] Furthermore, the forming grooves are located at the bottom of the pre-bending grooves and are interconnected, the shape of the forming grooves is the same as the shape of the insulating paper after being bent, and the pushing grooves are two grooves located on both sides of the forming grooves.

[0009] Furthermore, the rotating rod is located above the origami mold, and the middle section of the rotating rod is connected to the first connecting rod.

[0010] Furthermore, the sliding direction of the slider is parallel to the extending direction of the pushing groove, one end of the pushing block is located in the pushing groove, and the other end is connected to the slider.

[0011] Compared with the prior art, the hollow coil winding mechanism provided by the present invention, in which the starting and tail wires are located outside the coil, can simultaneously drive the paper cutting mechanism, the paper pressing mechanism, and the paper pushing mechanism through the driving mechanism. Specifically, the driving mechanism can simultaneously drive the lever and the driving rod to move, and one end of the lever is simultaneously connected to the connecting block and the second connecting rod. When the lever rotates, the lever will directly drive the cutter to cut paper through the connecting block, and the second connecting rod will push the rotating plate after the lever continues to rotate a certain distance, so that the first limiter touches the rotating plate, and the pressing plate is pressed down to press the paper. The driving rod of the paper pushing mechanism will rotate with the driven gear, and the driving rod drives the slider to slide, so that the pushing block moves to push the insulating paper that has been folded in the forming groove into the motor frame. In this way, the driving mechanism, the paper cutting mechanism, and the paper pressing mechanism can be driven simultaneously by a driving mechanism, and the control is simple only by driving the driving gear to rotate, and the overall structure is simple and occupies a small area. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic structural diagram of a paper feeding mechanism for motor insulation paper provided by the present invention.

[0013] Figure 2 for Figure 1 A structural schematic diagram of the origami mold possessed by the paper feeding mechanism of the motor insulation paper.

[0014] Figure 3 for Figure 2 A structural schematic diagram of the feeding assembly of the paper feeding mechanism of the motor insulation paper.

[0015] Figure 4 for Figure 2 A schematic structural diagram of the feeding assembly of the paper feeding mechanism of the motor insulating paper without the driven gear.

[0016] Figure 5 for Figure 1 A schematic structural diagram of a feeding assembly of the paper feeding mechanism of the motor insulation paper from another angle.

[0017] Figure 6 for Figure 1 A schematic structural diagram of a feeding assembly of the paper feeding mechanism of the motor insulation paper from another angle.

[0018] Figure 7 for Figure 1 A schematic structural diagram of a conveying assembly of a paper feeding mechanism for the motor insulation paper.

[0019] Figure 8 It is a structural schematic diagram of a motor skeleton in the prior art.

[0020] Explanation of the accompanying drawing numbers: frame 10, paper folding mold 31, pre-bending groove 311, forming groove 312, pushing groove 313, driving mechanism 32, driving gear 321, cam 322, driven gear 323, paper cutting mechanism 33, lever 331, counterweight block 332, pulley 333, rotating rod 334, connecting block 335, first connecting rod 336, cutter 337, paper pressing mechanism 34, rotating plate 341, second connecting rod 342, first limit member 343, second limit member 344, retaining frame 345, pressing plate 346, paper pushing mechanism 35, slide rail 351, slider 352, pushing block 353, driving rod 354, conveying assembly 20, feeding assembly 30, rotating assembly 40, stator coil 100, accommodating groove 110. DETAILED DESCRIPTION

[0021] The specific embodiments of the present invention are further described in detail below. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0022] like Figures 1 to 7 As shown, it is a schematic diagram of the structure of the paper feeding mechanism of the motor insulating paper provided by the present invention. The paper feeding mechanism of the motor insulating paper includes a frame 10, a conveying assembly 20 arranged on the frame 10, a feeding assembly 30 arranged on the frame 10, and a rotating assembly 40 arranged on the frame 10. It can be imagined that the paper feeding mechanism of the motor insulating paper also includes some other functional components, such as a driving device, a connecting assembly, etc., which are well known to those skilled in the art and will not be repeated here.

[0023] The rack 10 is used to carry the above-mentioned functional modules, so the rack 10 is provided with a variety of functional structures, such as screws, bolts, through holes, etc. to complete the installation and assembly of the above-mentioned functional modules. It can be set according to actual needs and will not be described in detail one by one here.

[0024] The conveying assembly 20 is used to convey the insulating paper into the feeding assembly 30. Figure 7 As shown, the conveying assembly 20 itself is a prior art, which can be composed of a frame, a driving wheel, a driven wheel meshed with the driving wheel, and a driving device that drives the driving wheel to rotate. The driving wheel is driven by the driving device to rotate, and the driving wheel drives the driven wheel to rotate together, so that the insulating paper sandwiched between the main and driven wheels is delivered to the feeding assembly 30. In order to facilitate the feeding assembly 30 to press the paper, an indentation strip is provided on the driving wheel and the driven wheel, so that the insulating paper is pre-pressed with an indentation for bending during the process of conveying the insulating paper.

[0025] The feeding assembly 30 includes a paper folding mold 31 arranged on the frame 10, a driving mechanism 32 arranged on the frame 10, a paper cutting mechanism 33 arranged on the frame 10, a paper pressing mechanism 34 arranged on the frame 10, and a paper pushing mechanism 35 arranged on the frame 10.

[0026] like Figure 2 As shown, the origami mold 31 is located in the output direction of the conveying assembly 20 , and the origami mold 31 is provided with a pre-bending groove 311 , a forming groove 312 connected to the pre-bending groove 311 , and a pushing groove 313 provided on the forming groove 312 .

[0027] The pre-bending groove 311 is a V-shaped structure, and the extension direction of the pre-bending groove 311 is the same as the output direction of the conveying assembly 20. Since the conveying assembly 20 will perform a crease process on the insulating paper, the insulating paper output from the conveying assembly 20 will have a certain curvature, so that the shape of the pre-bending groove 311 can better fit the insulating paper. The pushing groove 313 is two grooves located on the two side walls of the forming groove 312, and is used to insert the paper pushing mechanism 34, so that the paper pushing mechanism 34 can slide in the forming groove 312, and then push the insulating paper bent in the forming groove 312 into the coil skeleton.

[0028] like Figure 3 As shown, the driving mechanism 32 includes a driving gear 321 , a cam 322 rotatably disposed on the frame 10 , and a driven gear 323 disposed on the cam 322 and meshing with the driving gear 321 .

[0029] The driven gear 323 is coaxially fixed with the cam 322, and the driving gear 321 is driven to rotate by a driving device such as a motor. The driving gear 321 meshes with the driven gear 323, thereby driving the driven gear 323 to rotate. Since the driven gear 323 and the cam 322 are fixedly connected to each other, the driven gear 323 can drive the cam 322 to rotate. The cam 322 has a raised portion, so that when the cam 322 rotates, it will continuously drive the paper cutting mechanism 33 that is in contact with the cam 322 to move back and forth. The structure of the cam 322 and the size of the driven gear 323 will be described in detail below.

[0030] Please continue reading Figure 3 and Figure 4 The paper cutting mechanism 33 includes a lever 331 rotatably arranged on the frame 10, a counterweight block 332 arranged at one end of the lever 331, a pulley 333 arranged on the counterweight block 332, a rotating rod 334 arranged on the frame 10, a connecting block 335 arranged between one end of the lever 331 and the rotating rod 334, a first connecting rod 336 arranged on the rotating rod 334, and a cutter 337 slidably arranged on the frame 10 and connected to the rotating rod 334.

[0031] The middle section of the lever 331 is pivotally arranged on the frame 10, the counterweight 332 and the pulley 333 are arranged at one end of the lever 331, and the connecting block 335 is arranged at the other end. In this embodiment, the end of the lever 331 close to the counterweight 332 is rotatably connected to the frame 10. The counterweight 332 can make the pulley 333 always stick to the cam 322, so that when the cam 322 rotates, the pulley 333 of the lever 331 can be driven to swing up and down continuously to control the swing of the entire lever 331. As for the amplitude and time of the up and down swing of the pulley 333, it can be set according to the needs of implementation, and therefore, the shape of the cam 322 should also be designed according to the required amplitude and time of the up and down swing of the pulley 333.

[0032] The rotating rod 334 is located above the origami mold 31. One end of the rotating rod 334 is rotatably connected to the frame 10, and the other end is rotatably connected to the connecting block 335. The middle section of the rotating rod 334 is connected to the first connecting rod 336. The rotating rod 334 is used to connect the connecting block 335 and the first connecting rod 336 to play a transmission role. The connecting block 335 is a Z-shaped structure. One end of the connecting block 335 is movably connected to the lever 331, and the other end is movably connected to the rotating rod 334.

[0033] The two ends of the first connecting rod 336 are respectively rotatably connected to the cutter 337 and the rotating rod 334. The cutter 337 is vertically slidably arranged at one end of the origami mold 31 close to the conveying assembly 20. When the lever 331 swings up and down, it can drive the connecting block 335 to move, and the connecting block is connected to one end of the rotating rod 334, so that the rotating rod 334 rotates with the end rotatably connected to the frame 10 as the rotation point. The two ends of the first connecting rod 336 are respectively rotatably connected to the cutter 337 and the rotating rod 334, thereby driving the cutter 337 to move vertically to cut paper.

[0034] See also Figure 5 The paper pressing mechanism 34 includes a rotating plate 341 with one end rotatably arranged on the frame 10, a second connecting rod 342 connecting the lever 331 and the rotating plate 341, a first limiter 343 arranged on the second connecting rod 342, a second limiter 344 arranged on the second connecting rod 342, a retaining frame 345 arranged on the origami mold 31, and a pressing plate 346 slidably arranged on the retaining frame 345.

[0035] One end of the rotating plate 341 is rotatably connected to the frame 10 by inserting a rotating shaft, and the other end is rotatably inserted on the pressing plate 346. One end of the second connecting rod 342 is inserted into one end of the lever 331, and the other end is movably passed through the rotating plate 341. Due to the order of paper cutting and paper pressing processes, the paper needs to be cut before paper pressing, otherwise it will cause the paper in the conveying assembly 20 to deform, but it is driven by the lever 331 at the same time. Therefore, the first limiter 343 is located between the rotating plate 341 and the lever 331, and the rotating plate 341 is located between the second limiter 344 and the first limiter 343. The first limiter 343 and the second limiter 344 are arranged at intervals, so that a space sliding distance is set between the first limiter 343 and the second limiter 344. Therefore, the pressing time of the pressing plate 346 can be adjusted by adjusting the distance between the first limiter 343 and the second limiter 344. In the free state, the first stopper 343 is spaced apart from the rotating plate 341. When the lever 331 rotates, the lever 331 directly drives the cutter 337 to cut paper through the connecting block 335. However, because the first stopper 343 and the second stopper 344 are provided with an idle sliding distance, the second connecting rod 342 will not immediately drive the rotating plate 341 to rotate, but the lever 331 needs to continue to rotate a certain distance until the idle sliding distance is moved. Only then will the first stopper 343 touch the rotating plate 341 and then push the rotating plate 341, so that the rotating plate 341 drives the pressing plate 346 to press down to press paper. When resetting, the second connecting rod 342 moves upward to make the second stopper 344 touch the rotating plate 341 and push the rotating plate 341 to reset. The pressing plate 346 is slidably disposed on the retaining frame 345, one end of the pressing plate 346 is connected to the rotating plate 341, and the other end faces the molding groove 312 and is used to press the paper, so that the paper pressing mechanism 34 is driven by the lever 331 to press the paper. In addition, since the rotating plate 341 is a rotational movement, and the second connecting rod 342 is a vertical movement, in order to avoid mutual interference, the hole opened on the rotating plate 341 for passing the second connecting rod 342 can be a waist-shaped hole, so as to have a certain movable space to avoid mutual interference.

[0036] The paper pushing mechanism 35 includes two slide rails 351 arranged on the frame 10, a slider 352 slidably arranged on the slide rails 351, a push block 353 arranged on the slider 352, and a driving rod 354 connecting the slider 352 and the driving mechanism 32.

[0037] The sliding direction of the slider 352 is parallel to the extension direction of the push groove 313. One end of the push block 353 is located in the push groove 313, and the other end is connected to the slider 352. One end of the drive rod 354 is rotatably connected to the side wall of the driven gear 323, and the other end is rotatably connected to the slider 352. Since the sliding direction of the slider 352 has been limited by the slide rail 351 to only linear reciprocating motion, when the driven gear 323 rotates, it can drive one end of the drive rod 354 to move in a circle, thereby continuously moving the slider 352. The driven gear 323 is coaxially fixed with the driving gear 321, so when the driving gear 321 rotates, the driven gear 323 will also rotate, thereby driving the driving rod 354 to reciprocate. The slider 352 drives the push block 353 to move, thereby pushing the folded insulating paper in the forming groove 312 into the motor frame, thereby achieving the paper pushing of the paper pushing mechanism 35 driven by the driving mechanism 32. As for the order of the paper pushing mechanism 35 and the paper pressing mechanism 34, since the paper pushing mechanism 35 is driven by the driven gear 323 and the paper pressing mechanism 34 is driven by the cam 322, the paper pushing mechanism 35 can be controlled by adjusting the connection position between the paper pushing mechanism 35 and the paper pressing mechanism 34 and the connection position between the cam 322 and the driven gear 323, and the moving distance of the paper pushing mechanism 35 can be adjusted by the diameter of the driven gear 323. For example, when the lever 331 is pressed down by the raised part of the cam 322, it will press down. At this time, the end of the driving rod 354 connected to the driven gear 323 should be located at the point where the driven gear 323 is away from the paper folding mold 31, that is, at this time, the paper pushing mechanism 35 is in a retracted state, and vice versa, thereby avoiding the problem of interference between the paper pushing mechanism 35 and the paper pressing mechanism 34 when they are operated simultaneously.

[0038] The rotating assembly 40 is used to set the motor frame and drive it to rotate, so as to switch different positions for installing insulating paper. The rotating assembly 40 should be a prior art and will not be described in detail here.

[0039] Compared with the prior art, the hollow coil winding mechanism provided by the present invention with the starting and tailing wires located outside the coil can simultaneously drive the paper cutting mechanism 33, the paper pressing mechanism 34, and the paper pushing mechanism 35 through the driving mechanism 32. Specifically, the driving mechanism 32 can simultaneously drive the lever 331 and the driving rod 354 to move, and one end of the lever 331 is simultaneously connected to the connecting block 335 and the second connecting rod 342. When the lever 331 rotates, the lever 331 will directly drive the cutter 337 to cut paper through the connecting block 335, and the second connecting rod 342 will continue to rotate a certain distance from the lever 331, so that the first limiter 343 will push the rotating plate 341 after touching the rotating plate 341, and the pressing plate 346 will press down to press the paper. The driving rod 354 of the paper pushing mechanism 35 will rotate together with the driven gear 323, and the driving rod 354 drives the slider 352 to slide, so that the pushing block 353 moves to push the folded insulating paper in the forming groove 312 into the motor frame. In this way, the driving mechanism 32, the paper cutting mechanism 33, and the paper pressing mechanism 34 can be driven by one driving mechanism 32 at the same time. It is simple to control only by driving the driving gear 321 to rotate, and the overall structure is simple and occupies a small area.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention is included in the scope of the claims of the present invention.

Claims

1. A paper feeding mechanism for motor insulation paper, characterized in that: The paper feeding mechanism of the motor insulating paper includes a frame, a conveying assembly arranged on the frame, and a feeding assembly arranged on the frame, the feeding assembly includes a paper folding mold, a driving mechanism, a paper cutting mechanism, a paper pressing mechanism, and a paper pushing mechanism, the driving mechanism includes a driving gear, a cam rotatably arranged on the frame, and a driven gear arranged on the cam and meshed with the driving gear, the paper cutting mechanism includes a lever rotatably arranged on the frame, a counterweight block arranged at one end of the lever, and a A pulley is arranged on the counterweight block, a rotating rod is arranged on the frame, a connecting block is arranged at one end of the lever, a first connecting rod is arranged on the rotating rod, and a cutter is arranged on the frame, the counterweight block and the pulley are arranged at one end of the lever, and the connecting block is arranged at the other end, the pulley is attached to the cam, one end of the connecting block is movably connected to the lever, and the other end is movably connected to the rotating rod, one end of the rotating rod is rotatably connected to the frame, and the other end is rotatably connected to the connecting block, and the two ends of the first connecting rod are rotatably connected to the cutting The knife and the rotating rod, the cutter is vertically slidably arranged at one end of the origami mold close to the conveying assembly, the paper pressing mechanism includes a rotating plate rotatably arranged on the frame at one end, a second connecting rod connecting the lever and the rotating plate, a first limiter arranged on the second connecting rod, a second limiter arranged on the second connecting rod, a retaining frame arranged on the origami mold, and a pressing plate arranged on the rotating plate, one end of the rotating plate is rotatably connected to the frame, and the other end is rotatably inserted on the pressing plate, and the second connecting rod is One end is inserted into one end of the lever, and the other end is movably passed through the rotating plate, the first limit piece is located between the rotating plate and the lever, the rotating plate is located between the second limit piece and the first limit piece, the first limit piece and the second limit piece are arranged at intervals, the paper pushing mechanism includes two slide rails arranged on the frame, a slider slidably arranged on the slide rail, a push block arranged on the slider, and a driving rod connecting the slider and the driving mechanism, one end of the driving rod is rotatably connected to the side wall of the driven gear, and the other end is rotatably connected to the slider.

2. The paper feeding mechanism for motor insulation paper according to claim 1, characterized in that: The paper feeding mechanism of the motor insulating paper also includes a rotating assembly arranged on the frame, and the conveying assembly is used to convey the insulating paper into the feeding assembly.

3. The paper feeding mechanism for motor insulation paper according to claim 1, characterized in that: The origami mold is provided with a pre-bending groove, a forming groove arranged on the pre-bending groove, and a pushing groove arranged on the forming groove.

4. The paper feeding mechanism for motor insulation paper according to claim 3, characterized in that: The pre-bending groove is in a V-shaped structure, and the extending direction of the pre-bending groove is the same as the output direction of the conveying component.

5. The paper feeding mechanism for motor insulation paper according to claim 3, characterized in that: The forming grooves are located at the bottom of the pre-bending grooves and are interconnected. The shape of the forming grooves is the same as the shape of the insulating paper after being bent. The pushing grooves are two grooves located on both sides of the forming grooves.

6. The paper feeding mechanism for motor insulation paper according to claim 1, characterized in that: The rotating rod is located above the origami mold, and the middle section of the rotating rod is connected to the first connecting rod.

7. The paper feeding mechanism for motor insulation paper according to claim 3, characterized in that: The sliding direction of the slider is parallel to the extending direction of the pushing groove. One end of the pushing block is located in the pushing groove, and the other end is connected to the slider.

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