A slot paper feeding device for an outer rotor

Abstract

This utility model relates to the field of motor external rotor production equipment, and discloses a slotted paper feeding device for external rotors, including a frame, an indexing mechanism, a slotted paper supply mechanism, a feeding mechanism, a clamping mechanism, and a pushing mechanism. A feeding station is provided on the frame. The indexing mechanism, located on the frame, is used to load and drive the external rotor to rotate around its own axis by a preset angle, so that each slot of the external rotor is rotated sequentially to align with the feeding station. The slotted paper supply mechanism and the feeding mechanism are both located on the frame. The slotted paper supply mechanism is used to bend and output slotted papers one by one, and the feeding mechanism is used to receive the slotted papers output by the slotted paper supply mechanism and transport them to the feeding station. The clamping mechanism, located on the feeding mechanism, is used to clamp or loosen the insertion starting end of the slotted paper on the feeding mechanism to reduce its bending angle. The pushing mechanism, located on the frame, is used to push the slotted paper at the feeding station into the corresponding slot. This utility model can solve the problem of how to improve the efficiency and accuracy of paper insertion.

Description

Technical Field

[0001] This utility model relates to the field of motor external rotor production equipment, specifically to a slotted paper feeding device for external rotors. Background Technology

[0002] In the production process of the excitation rotor, winding copper wire is a crucial step. Before winding the copper wire, inserting slot paper into the grooves of the outer rotor core is an indispensable and important step to ensure motor performance. The slot paper adheres tightly to the inner wall of the groove, forming an insulating barrier that effectively isolates the copper wire from the core, prevents short circuits, and ensures motor performance.

[0003] To meet this process requirement, existing technology provides a slotted paper feeding device, which includes a forming module, a cutting module, a feeding module, and a pushing module. In actual use, firstly, the forming module bends and shapes the slotted paper to form a U-shaped or V-shaped structure that fits the V-shaped groove; then, the cutting module precisely cuts the formed slotted paper according to preset length parameters; next, the feeding module moves the cut slotted paper to the pushing module; finally, the pushing module pushes the slotted paper upward into the groove of the outer rotor, completing the entire feeding process.

[0004] However, existing slot paper feeding devices have significant drawbacks. Firstly, after inserting paper into each slot, the existing devices require manual rotation of the outer rotor at a preset angle before inserting paper into the next slot. This not only reduces overall production efficiency but also makes the rotation angle inaccurate due to human error, affecting the precision and quality of subsequent paper insertions, and consequently impacting the motor's insulation performance and operational stability. Secondly, the slot paper may bend at an angle slightly larger than the slot angle due to forming errors, mechanical vibration, or other reasons. In this case, when the pushing module pushes the slot paper, it is highly likely to interfere with the outer rotor, preventing it from being smoothly fed into the slot and creating a potential short-circuit hazard for subsequent motor operation.

[0005] In view of the above-mentioned problems with existing slotted paper feeding devices, it is necessary to develop a slotted paper feeding device for external rotors to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This invention provides a slotted paper feeding device for an external rotor, which can at least solve the technical problem of how to improve the efficiency and accuracy of paper insertion.

[0008] (II) Technical Solution

[0009] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a slotted paper feeding device for an external rotor, comprising:

[0010] The machine frame has a loading station.

[0011] The indexing mechanism, located on the frame, is used to load and drive the outer rotor to rotate around its own axis by a preset angle so that each groove of the outer rotor is rotated sequentially to align with the loading station.

[0012] The paper feeding mechanism and the feeding mechanism are both located on the frame. The paper feeding mechanism is used to bend and output the paper one by one, and the feeding mechanism is used to receive the paper output by the paper feeding mechanism and transport the paper to the loading station.

[0013] A clamping mechanism is provided on the feeding mechanism and is used to clamp or release the insertion start end of the groove paper on the feeding mechanism to reduce the bending angle of the insertion start end of the groove paper.

[0014] The feeding mechanism is located on the frame and is used to push the grooved paper on the feeding station into the corresponding groove.

[0015] In a further configuration, the aforementioned feeding mechanism includes a paper output block and a paper output block driving assembly. The paper output block is provided with a paper output channel for accommodating the slotted paper. The paper output block driving assembly is mounted on the frame and is connected to the paper output block in a transmission manner. The paper output block driving assembly is used to drive the paper output block to move toward or away from the loading station, so that the paper output block docks with the paper output end of the slotted paper supply mechanism, or moves the paper output block to the loading station.

[0016] Further, the aforementioned clamping mechanism includes a clamping arm drive assembly and two clamping arms. A clamping space is provided between the two clamping arms. The clamping space is opposite to and connected to the exit position of the paper output channel. The clamping arm drive assembly is located on the paper output block and is connected to the two clamping arms in a transmission manner. The clamping arm drive assembly is used to drive the two clamping arms to move closer to each other or further away from each other, so as to reduce or expand the clamping space, thereby clamping or releasing the insertion start end of the slotted paper.

[0017] Further, the aforementioned clamping arm drive assembly includes:

[0018] The movable block has two symmetrical sliding grooves that extend from the inside out. The clamping arms are slidably mounted on the paper output block and are fixed with pulleys. The pulleys of the two clamping arms are located in the two sliding grooves respectively and are slidably connected to the corresponding sliding grooves.

[0019] The movable block drive is fixed on the paper output block and is connected to the movable block for transmission. The movable block drive is used to drive the movable block to move towards or away from the feeding station, so as to drive the two clamping arms to move away from or towards each other.

[0020] Furthermore, each of the two clamping arms has a recess on its opposite side, forming a clamping space between the two recesses.

[0021] Further, the aforementioned indexing mechanism includes a rotary drive assembly and a rotary shaft. The rotary shaft is vertically rotatable on the frame. The rotary drive assembly is mounted on the frame and is connected to the bottom end of the rotary shaft via a transmission connection. The outer rotor is detachably mounted on the top end of the rotary shaft. The rotary drive assembly is used to drive the rotary shaft to rotate around its own axis by a preset angle.

[0022] Furthermore, the aforementioned slotted paper feeding device for the outer rotor also includes a positioning mechanism, which includes:

[0023] The positioning block is located on one side of the indexing mechanism, and a protrusion is provided on the side of the positioning block facing the indexing mechanism;

[0024] The positioning block drive is mounted on the frame and is connected to the positioning block in a transmission manner. The positioning block drive is used to drive the positioning block to move toward or away from the outer rotor on the indexing mechanism so as to insert or move the protrusion into or out of the groove of the outer rotor.

[0025] In a further configuration, the aforementioned positioning block has an arc-shaped concave surface on the side facing the indexing mechanism. The diameter of the concave surface is equal to the outer diameter of the outer rotor, and the concave surface is used to fit against the outer rotor.

[0026] (III) Beneficial Effects

[0027] Compared with the prior art, the slotted paper feeding device for an external rotor provided by this utility model has the following advantages:

[0028] When using the slotted paper feeding device for the outer rotor provided by this utility model, firstly, the slotted paper supply mechanism bends and shapes the slotted paper, and outputs the bent slotted paper one by one; then, the feeding mechanism receives the slotted paper output by the slotted paper supply mechanism, while the clamping mechanism clamps the insertion start end of the slotted paper; next, the feeding mechanism transports the slotted paper to the feeding station, and the clamping mechanism releases the insertion start end of the slotted paper; finally, the pushing mechanism pushes the slotted paper at the feeding station into the corresponding slot. After the paper insertion operation of one slot is completed, the indexing mechanism drives the outer rotor to rotate around its own axis by a preset angle, so that the next slot of the outer rotor is aligned with the feeding station. Repeating the above steps, the next slotted paper can be inserted into the slot. This cycle is repeated to realize the continuous feeding of slotted paper into each slot of the outer rotor. As can be seen, this invention achieves automated paper feeding in all grooves of the outer rotor through the coordinated work of various mechanisms. During this process, the indexing mechanism precisely controls the rotation angle of the outer rotor, replacing the traditional manual rotation method. This ensures that each groove accurately reaches the feeding station, effectively avoiding inaccurate paper insertion due to human error and greatly improving the efficiency and accuracy of paper insertion. Furthermore, this invention uses a clamping mechanism to further bend the bent groove paper, adjusting the bending angle of the insertion start end of the groove paper to be slightly smaller than the groove angle. This effectively avoids interference between the groove paper and the outer rotor during the pushing process, making the insertion of the groove paper smoother and ensuring accurate insertion, further improving the accuracy and reliability of paper insertion. Attached Figure Description

[0029] Figure 1 This is a perspective view of the slotted paper feeding device for the outer rotor in the embodiment;

[0030] Figure 2 This is a schematic diagram of the paper supply mechanism, feeding mechanism, and clamping mechanism in the embodiment.

[0031] Figure 3 This is a schematic diagram of the indexing mechanism, pushing mechanism, and positioning mechanism in the embodiment.

[0032] Icon labels:

[0033] 1. Machine frame; 11. Loading station;

[0034] 2. Indexing mechanism; 21. Rotary drive assembly; 22. Rotary shaft; 23. Pressure plate;

[0035] 3. Gutter paper supply mechanism; 31. First forming wheel; 32. Second forming wheel; 33. Rotary drive component; 34. Cutter; 35. Cutter drive component; 36. Forming channel;

[0036] 4. Feeding mechanism; 41. Paper output block; 411. Paper output channel; 42. Paper output block drive assembly;

[0037] 5. Clamping mechanism; 51. Clamping arm drive assembly; 511. Movable block; 5111. Slide groove; 512. Movable block drive component; 52. Clamping arm; 521. Recess; 522. Pulley; 53. Clamping space;

[0038] 6. Feeding mechanism; 61. Ejector pin; 62. Ejector pin drive assembly;

[0039] 7. Positioning mechanism; 71. Positioning block; 711. Protrusion; 712. Concave surface; 72. Positioning block drive component;

[0040] 8. External rotor; 81. Groove. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] This invention provides a slotted paper feeding device for an external rotor, which addresses the problem of improving the efficiency and accuracy of paper insertion.

[0043] See Figure 1 As shown, Figure 1 The image shows a perspective view of the slotted paper feeding device for the outer rotor in the embodiment. The slotted paper feeding device for the outer rotor includes a frame 1, an indexing mechanism 2, a slotted paper supply mechanism 3, a feeding mechanism 4, a clamping mechanism 5, and a pushing mechanism 6.

[0044] The frame 1 is equipped with a feeding station 11.

[0045] The indexing mechanism 2 is mounted on the frame 1. The indexing mechanism 2 is used to load and drive the outer rotor 8 to rotate around its own axis by a preset angle so that each groove 81 of the outer rotor 8 is rotated sequentially to align with the loading station 11.

[0046] Both the slotted paper supply mechanism 3 and the feeding mechanism 4 are mounted on the frame 1. The slotted paper supply mechanism 3 is used to bend and output slotted papers one by one. The feeding mechanism 4 is used to receive the slotted papers output by the slotted paper supply mechanism 3 and transport the slotted papers to the loading station 11.

[0047] The clamping mechanism 5 is installed on the feeding mechanism 4. The clamping mechanism 5 is used to clamp or loosen the insertion start end of the groove paper on the feeding mechanism 4 to reduce the bending angle of the insertion start end of the groove paper.

[0048] The pushing mechanism 6 is mounted on the frame 1 and is used to push the groove paper on the loading station 11 into the corresponding groove 81.

[0049] When using the slotted paper feeding device for the outer rotor according to the above technical solution, firstly, the slotted paper supply mechanism 3 bends and shapes the slotted paper, and outputs the bent slotted paper one by one; then, the feeding mechanism 4 receives the slotted paper output by the slotted paper supply mechanism 3, while the clamping mechanism 5 clamps the insertion start end of the slotted paper; next, the feeding mechanism 4 transports the slotted paper to the feeding station 11, and the clamping mechanism 5 releases the insertion start end of the slotted paper; finally, the pushing mechanism 6 pushes the slotted paper on the feeding station 11 into the corresponding groove 81. After completing the paper insertion operation of one groove 81, the indexing mechanism 2 drives the outer rotor 8 to rotate around its own axis by a preset angle, so that the next groove 81 of the outer rotor 8 is aligned with the feeding station 11. Repeating the above steps, the next slotted paper can be inserted into the groove 81. This cycle is repeated to realize the continuous feeding of slotted paper into each groove 81 of the outer rotor 8. As can be seen, this utility model achieves automated paper feeding in all grooves 81 of the outer rotor 8 through the coordinated work of various mechanisms. During this process, the indexing mechanism 2 precisely controls the rotation angle of the outer rotor 8, replacing the traditional manual rotation method. This ensures that each groove 81 accurately reaches the feeding station 11, effectively avoiding inaccurate paper insertion due to human error and greatly improving the efficiency and accuracy of paper insertion. Furthermore, this utility model uses the clamping mechanism 5 to further bend the bent groove paper, adjusting the bending angle of the insertion start end of the groove paper to be slightly smaller than the angle of the groove 81. This effectively avoids interference between the groove paper and the outer rotor 8 during the pushing process, making the insertion of the groove paper smoother and ensuring accurate insertion into the groove 81, further improving the accuracy and reliability of paper insertion.

[0050] See Figure 1 and Figure 2 As shown, Figure 2This is a schematic diagram of the structure of the paper feeding mechanism, the feeding mechanism, and the clamping mechanism in the embodiment. In one embodiment of the feeding mechanism 4, the feeding mechanism 4 includes a paper output block 41 and a paper output block driving assembly 42. The paper output block 41 has a paper output channel 411 for accommodating the paper. The paper output block driving assembly 42 is mounted on the frame 1 by means of screwing or welding and is drively connected to the paper output block 41. The paper output block driving assembly 42 is used to drive the paper output block 41 to move towards or away from the loading station 11, so that the paper output block 41 docks with the paper output end of the paper feeding mechanism 3, or moves the paper output block 41 to the loading station 11. In this way, the design of the feeding mechanism 4 makes the feeding of the paper more precise and flexible. The paper output block driving assembly 42 can precisely control the position of the paper output block 41, ensuring that the paper can smoothly enter the paper output channel 411 when the paper output block 41 docks with the paper output end of the paper feeding mechanism 3, and can also accurately transport the paper to the loading station 11, improving the accuracy and efficiency of feeding. In addition, the paper output block 41 receives the slotted paper output by the slotted paper supply mechanism 3 through the paper output channel 411, which can effectively protect the shape of the slotted paper after bending and shaping from changing.

[0051] The aforementioned paper output block drive assembly 42 can use existing linear drive mechanisms such as telescopic cylinders or telescopic poles, and its output end is connected to the paper output block 41 by means of screwing or welding.

[0052] See Figure 1 and Figure 2 As shown, in one embodiment of the clamping mechanism 5, the clamping mechanism 5 includes a clamping arm drive assembly 51 and two clamping arms 52. A clamping space 53 is provided between the two clamping arms 52, and the clamping space 53 is opposite to and communicates with the outlet position of the paper output channel 411. The clamping arm drive assembly 51 is mounted on the paper output block 41 and is kinetically connected to the two clamping arms 52. The clamping arm drive assembly 51 is used to drive the two clamping arms 52 to move closer or further apart from each other, thereby reducing or expanding the clamping space 53, thereby clamping or releasing the insertion start end of the slotted paper. Thus, when the slot paper supply mechanism 3 supplies material, it inputs the slot paper into the paper output channel 411 and extends the insertion start end of the slot paper into the clamping space 53 through the paper output channel 411. The two clamping arms 52 and the clamping arm drive assembly 51 cooperate to clamp the insertion start end of the slot paper located in the clamping space 53. This not only reduces the bending angle of the insertion start end of the slot paper before pushing the material, making it easier for the slot paper to enter the groove 81 smoothly and reducing the difficulty of pushing the material, but also effectively prevents the slot paper from detaching from the paper output block 41 during the feeding process.

[0053] See Figure 2As shown, in one embodiment of the clamping arm drive assembly 51, the clamping arm drive assembly 51 includes a movable block 511 and a movable block drive member 512. The movable block 511 has two mutually symmetrical sliding grooves 5111, which extend inclinedly from the inside out. The clamping arm 52 is slidably connected to the paper output block 41, and pulleys 522 are fixedly mounted on the clamping arm 52 by means of screwing or welding. The pulleys 522 of the two clamping arms 52 are respectively located in the two sliding grooves 5111 and are slidably connected to the corresponding sliding grooves 5111. The movable block drive member 512 is fixedly mounted on the paper output block 41 by means of screwing or welding and is drively connected to the movable block 511. The movable block drive member 512 is used to drive the movable block 511 to move towards or away from the loading station 11, thereby causing the two clamping arms 52 to move away from or towards each other. Thus, the clamping arm drive assembly 51 drives the movable block 511 to move through the movable block drive component 512, which can drive the two clamping arms 52 to move closer or further apart, thereby reducing or expanding the clamping space 53, and thus achieving the clamping or loosening of the insertion start end of the slotted paper.

[0054] The aforementioned movable block drive component 512 can use existing linear drive mechanisms such as telescopic cylinders or telescopic poles, and its output end is connected to the movable block 511 by means of screwing or welding.

[0055] In addition to the above-described embodiments, the clamping arm drive assembly 51 can also use existing clamping drive mechanisms such as clamping cylinders, whose output ends are connected to the two clamping arms 52 by means of screwing or welding.

[0056] See Figure 2 As shown, in one embodiment of the clamping arm 52, each of the two clamping arms 52 has a recess 521 on its opposite side, and a clamping space 53 is formed between the two recesses 521. In this way, the recesses 521 can better fit the shape of the slotted paper, effectively avoid the bending angle of the insertion start end of the slotted paper being too small, and ensure the quality of the slotted paper feeding.

[0057] See Figure 1 and Figure 3 As shown, Figure 3 This is a schematic diagram of the indexing mechanism, pushing mechanism, and positioning mechanism in one embodiment. In one implementation of the indexing mechanism 2, the indexing mechanism 2 includes a rotary drive assembly 21 and a rotary shaft 22. The rotary shaft 22 is vertically rotatably connected to the frame 1. The rotary drive assembly 21 is mounted on the frame 1 and is drively connected to the bottom end of the rotary shaft 22. The outer rotor 8 is detachably mounted on the top end of the rotary shaft 22. The rotary drive assembly 21 drives the rotary shaft 22 to rotate around its own axis by a preset angle. Thus, by using the combination of the rotary drive assembly 21 and the rotary shaft 22, the indexing mechanism 2 can precisely control the rotation angle of the outer rotor 8, ensuring that each groove 81 accurately reaches the loading station 11.

[0058] The aforementioned rotary drive assembly 21 can use existing rotary drive mechanisms such as servo motors or stepper motors, and its output end is connected to the bottom end of the rotary shaft 22 via a transmission assembly such as a gear set or gear belt set. The aforementioned outer rotor 8 can be detachably fixed to the top end of the rotary shaft 22 by a combination of a pressure plate 23 and bolts.

[0059] See Figure 1 and Figure 3 As shown, based on any of the above embodiments, the slotted paper feeding device for the outer rotor further includes a positioning mechanism 7. The positioning mechanism 7 includes a positioning block 71 and a positioning block drive 72. The positioning block 71 is located on one side of the indexing mechanism 2, and a protrusion 711 is provided on the side of the positioning block 71 facing the indexing mechanism 2 by means of integral connection or welding. The positioning block drive 72 is mounted on the frame 1 by means of screwing or welding and is drively connected to the positioning block 71. The positioning block drive 72 is used to drive the positioning block 71 to move towards or away from the outer rotor 8 on the indexing mechanism 2, so as to insert or remove the protrusion 711 into or out of the slot 81 of the outer rotor 8. Thus, after the indexing mechanism 2 rotates the outer rotor 8 to the designated position, the positioning mechanism 7, through the insertion and engagement of the protrusion 711 with the slot 81, can further accurately position the slot 81, ensuring the positional stability of the outer rotor 8 during the feeding process, preventing the outer rotor 8 from deflecting and causing the position of the slot 81 to be inserted to shift, thereby further improving the accuracy of paper insertion.

[0060] The aforementioned positioning block drive component 72 can use existing linear drive mechanisms such as telescopic cylinders or telescopic poles, and its output end is connected to the positioning block 71 by means of screwing or welding.

[0061] See Figure 1 and Figure 3 As shown, in one embodiment of the positioning block 71, the side of the positioning block 71 facing the indexing mechanism 2 has an arc-shaped concave surface 712. The diameter of the concave surface 712 is equal to the outer diameter of the outer rotor 8, and the concave surface 712 is used to fit against the outer rotor 8. Thus, when the positioning block drive member 72 drives the positioning block 71 to move towards the outer rotor 8 on the indexing mechanism 2, the design of the arc-shaped concave surface 712 allows the positioning block 71 to fit better against the outer rotor 8, increasing the contact area between the positioning block 71 and the outer rotor 8. This not only makes the insertion and engagement of the protrusion 711 and the groove 81 more precise, but also improves the stability and reliability of positioning, preventing the outer rotor 8 from shaking or shifting, thereby further improving the accuracy of paper insertion.

[0062] See Figure 2As shown, in one embodiment of the slotted paper supply mechanism 3, the slotted paper supply mechanism 3 includes a first forming wheel 31, a second forming wheel 32, a rotary drive component 33, a cutter 34, and a cutter drive component 35. The first forming wheel 31 and the second forming wheel 32 are connected by a transmission structure such as a gear set or a belt set. A forming channel 36 is formed between the first forming wheel 31 and the second forming wheel 32. The rotary drive component 33 is mounted on the frame 1 by means of screwing or welding, and its output end is connected to the first forming wheel 31 or the second forming wheel 32 by means of a transmission structure such as a gear set or a belt set. The rotary drive component 33 is used to drive the first forming wheel 31 and the second forming wheel 32 to rotate in opposite directions, so as to bend the slotted paper between the first forming wheel 31 and the second forming wheel 32 and drive the slotted paper to be output from the forming channel 36. The cutter 34 is movably located between the paper output block 41 and the forming channel 36. The cutter drive component 35 is mounted on the frame 1 by means of screwing or welding and is connected to the cutter 34. The cutter drive 35 drives the cutter 34 to move, cutting the grooved paper to form the required length of grooved paper. In use, the first forming wheel 31, the second forming wheel 32 and the rotary drive 33 cooperate to bend and shape the grooved paper, while the bent grooved paper is fed into the paper output channel 411 through the forming channel 36. When the conveyed grooved paper reaches the preset length, the cutter 34 and the cutter drive 35 cooperate to cut the grooved paper. After forming the required length of grooved paper, the feeding mechanism 4 conveys the cut grooved paper to the loading station 11, thereby realizing the automatic continuous and sequential supply of grooved paper.

[0063] The aforementioned rotary drive component 33 can use existing rotary drive mechanisms such as servo motors or stepper motors. The aforementioned cutter drive component 35 can use existing linear drive mechanisms such as telescopic cylinders or telescopic poles, and its output end is connected to the cutter 34 by means of screwing or welding.

[0064] See Figure 3 As shown, in one embodiment of the feeding mechanism 6, the feeding mechanism 6 includes a pusher pin 61 and a pusher pin drive assembly 62. The pusher pin 61 is located parallel to one side of the rotating shaft 22, and the pusher pin 61 is positioned opposite to the loading station 11. The pusher pin drive assembly 62 is mounted on the frame 1 by means of screwing or welding, and is connected to the pusher pin 61 in a driving manner. The pusher pin drive assembly 62 is used to drive the pusher pin 61 to move up or down toward or away from the loading station 11, so as to push the slotted paper on the loading station 11 into the corresponding groove 81. Thus, when the feeding mechanism 4 conveys the slotted paper to the loading station 11, the pusher pin drive assembly 62 drives the pusher pin 61 to rise toward the loading station 11, thereby pushing the slotted paper on the loading station 11 into the corresponding groove 81, completing the paper insertion operation.

[0065] The aforementioned ejector drive assembly 62 can use existing linear drive mechanisms such as telescopic cylinders or telescopic poles, and its output end is connected to the ejector 61 by means of screwing or welding.

[0066] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A slotted paper feeding device for an external rotor, characterized in that, include: The frame is equipped with a loading station; An indexing mechanism is provided on the frame. The indexing mechanism is used to load and drive the outer rotor to rotate around its own axis by a preset angle so that each groove of the outer rotor is rotated sequentially to be aligned with the loading station. The slotted paper supply mechanism and the feeding mechanism are both located on the frame. The slotted paper supply mechanism is used to bend and output slotted paper one by one, and the feeding mechanism is used to receive the slotted paper output by the slotted paper supply mechanism and transport the slotted paper to the loading station. A clamping mechanism is provided on the feeding mechanism and is used to clamp or release the insertion start end of the slotted paper on the feeding mechanism to reduce the bending angle of the insertion start end of the slotted paper. A pushing mechanism is provided on the frame and is used to push the grooved paper on the loading station into the corresponding groove.

2. The slotted paper feeding device for an external rotor according to claim 1, characterized in that, The feeding mechanism includes a paper output block and a paper output block driving assembly. The paper output block is provided with a paper output channel for accommodating the slotted paper. The paper output block driving assembly is mounted on the frame and is drivenly connected to the paper output block. The paper output block driving assembly is used to drive the paper output block to move toward or away from the feeding station, so that the paper output block docks with the paper output end of the slotted paper supply mechanism, or moves the paper output block to the feeding station.

3. The slotted paper feeding device for an external rotor according to claim 2, characterized in that, The clamping mechanism includes a clamping arm drive assembly and two clamping arms. A clamping space is provided between the two clamping arms. The clamping space is opposite to and connected to the outlet position of the paper output channel. The clamping arm drive assembly is disposed on the paper output block and is throttle connected to the two clamping arms. The clamping arm drive assembly is used to drive the two clamping arms to move closer or further away from each other to reduce or expand the clamping space, thereby clamping or releasing the insertion start end of the slotted paper.

4. The slotted paper feeding device for an external rotor according to claim 3, characterized in that, The clamping arm drive assembly includes: The movable block has two symmetrical sliding grooves that extend inclinedly from the inside to the outside. The clamping arms are slidably mounted on the paper output block and are fixedly equipped with pulleys. The pulleys of the two clamping arms are respectively located in the two sliding grooves and are slidably connected to the corresponding sliding grooves. A movable block drive is fixed on the paper output block and is connected to the movable block in a transmission manner. The movable block drive is used to drive the movable block to move toward or away from the feeding station, so as to drive the two clamping arms to move away from or toward each other.

5. The slotted paper feeding device for an external rotor according to claim 3 or 4, characterized in that, Each of the two clamping arms has a recess on its opposite side, and the clamping space is formed between the two recesses.

6. The slotted paper feeding device for an external rotor according to any one of claims 1-4, characterized in that, The indexing mechanism includes a rotary drive assembly and a rotary shaft. The rotary shaft is vertically rotatable on the frame. The rotary drive assembly is mounted on the frame and is connected to the bottom end of the rotary shaft. The outer rotor is detachably mounted on the top end of the rotary shaft. The rotary drive assembly is used to drive the rotary shaft to rotate around its own axis by a preset angle.

7. The slotted paper feeding device for an external rotor according to any one of claims 1-4, characterized in that, The slotted paper feeding device for the outer rotor further includes a positioning mechanism, the positioning mechanism comprising: A positioning block is provided on one side of the indexing mechanism, and the positioning block has a protrusion on the side facing the indexing mechanism; A positioning block drive is disposed on the frame and is connected to the positioning block in a transmission manner. The positioning block drive is used to drive the positioning block to move toward or away from the outer rotor on the indexing mechanism, so as to insert or move the protrusion into or out of the groove of the outer rotor.

8. The slotted paper feeding device for an external rotor according to claim 7, characterized in that, The positioning block has an arc-shaped concave surface on the side facing the indexing mechanism. The diameter of the concave surface is equal to the outer diameter of the outer rotor, and the concave surface is used to fit against the outer rotor.

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