An insulating paper inserting device for the stator of a new energy flat wire motor

Abstract

The present invention relates to an insulating paper inserting device for a new energy flat wire motor stator, which is used to insert the insulating paper on a paper disk into the stator, and includes: a pre-feeding paper assembly, an indentation assembly, a forming assembly and an inserting assembly; the pre-feeding paper assembly is used to pre-draw the insulating paper on the paper disk, the indentation assembly includes a first indentation roller and a second indentation roller, and the insulating paper is located between the first indentation roller and the second indentation roller. The insulating paper inserting device for a new energy flat wire motor stator of the present invention pre-draws the insulating paper through the pre-feeding paper assembly, then forms an indentation on the insulating paper through the indentation assembly, and bends and forms along the indentation through the forming assembly, so that the processed insulating paper is inserted into the stator through the inserting assembly, improving the practicability and working efficiency of the inserting device.

Description

Technical Field

[0001] The present invention relates to the technical field of manufacturing new energy motor stators, and particularly to an insulating paper inserting device for a new energy flat wire motor stator. Background Art

[0002] Generally, circular electromagnetic wires are used for the stator coils of small and medium-sized motors, and the slot insulating paper is inserted in a U-shaped opening. The highest slot fill factor of the stator is about 80%. New energy motors have started to use flat electromagnetic wires as the motor windings, and the slot fill factor can reach more than 90%, greatly improving the utilization space of materials and thus increasing the output power of the motor.

[0003] However, the existing stator insulating paper inserting device cannot insert the slot insulating paper in a rectangular sealed shape, resulting in a reduced practicality of the existing stator insulating paper inserting device. Summary of the Invention

[0004] For this reason, the technical problem to be solved by the present invention is to overcome the problem in the prior art that the insulating paper in a rectangular sealed shape cannot be inserted, resulting in a reduced practicality of the existing inserting device.

[0005] To solve the above technical problem, the present invention provides an insulating paper inserting device for a new energy flat wire motor stator, which is used to form the insulating paper on a paper disc into a rectangle and insert it into the paper slot of the motor stator, and includes:

[0006] A pre-feeding paper assembly, the pre-feeding paper assembly includes a paper disc rack, a first power source, a first guide wheel and a second guide wheel. The paper disc is arranged on the paper disc rack, the first power source drives the paper disc to rotate, and the insulating paper passes between the first guide wheel and the second guide wheel to pre-draw the insulating paper on the paper disc;

[0007] An indentation assembly, the indentation assembly includes a first indentation roller and a second indentation roller. The insulating paper passes between the first guide wheel and the second guide wheel and then is located between the first indentation roller and the second indentation roller. A first groove is provided on the circumferential direction of the first indentation roller, and a first convex portion is provided on the circumferential direction of the second indentation roller. The first convex portion is adapted to the first groove to form an indentation;

[0008] A forming assembly, the forming assembly includes a first forming unit, a second forming unit, a cutting unit and a third forming unit; the first forming unit bends the insulating paper along the indentation; the second forming unit is used to converge and form the insulating paper; the cutting unit is used to cut the insulating paper; the third forming unit includes a pushing unit and a forming groove, and the pushing unit pushes the insulating paper into the forming groove to form the insulating paper into a rectangle;

[0009] Insertion component, the insertion component includes a moving unit and a push rod, the push rod is slidably arranged in the forming groove, and the moving unit drives the push rod to slide along the forming groove.

[0010] As a further improvement of the present invention, the pre-feeding paper component further includes a third guide wheel, the insulating paper passes between the first guide wheel and the second guide wheel and then passes around the third guide wheel and then passes between the first indentation roller and the second indentation roller.

[0011] As a further improvement of the present invention, the pre-feeding paper component further includes a first in-place sensor and a second in-place sensor, and the first in-place sensor and the second in-place sensor are respectively arranged on both sides of the third guide wheel.

[0012] As a further improvement of the present invention, a second groove is provided on the first guide wheel, a second convex portion is provided on the second guide wheel, and the second groove is adapted to the second convex portion so that the insulating paper is released along the second groove.

[0013] As a further improvement of the present invention, both the first groove and the first convex portion are provided with four, so as to form four indentations on the insulating paper.

[0014] As a further improvement of the present invention, the first forming unit includes a bottom plate, a first paper passing groove, a second paper passing groove and a third paper passing groove. The first paper passing groove is used to bend the insulating paper along the indentation, the second paper passing groove is used to bend the bent part of the insulating paper again, and the third paper passing groove is used to gather the insulating paper.

[0015] As a further improvement of the present invention, the second forming unit includes a chute and multiple sets of converging units. The insulating paper slides along the chute, and multiple sets of converging units are arranged along the length direction of the chute. The converging unit includes two limiting members respectively arranged on both sides of the chute. The two limiting members in the same set of converging units are arranged opposite to each other, and the width between the two limiting members in the same set of converging units decreases along the extending direction of the insulating paper.

[0016] As a further improvement of the present invention, the first forming unit and the second forming unit are also provided with an encoder, and the encoder is used to generate a length bar code on the insulating paper.

[0017] As a further improvement of the present invention, the cutting unit includes a cutting knife and a code reader. The code reader reads the information of the length bar code and controls the cutting knife to cut.

[0018] As a further improvement of the present invention, the pushing unit includes a driving unit and a push plate, and the driving unit drives the push plate to push or retract.

[0019] The above technical solution of the present invention has the following advantages compared with the prior art:

[0020] An insulating paper inserting device for a new energy flat wire motor stator of the present invention pre-draws insulating paper through a pre-paper feeding assembly, then forms indentations on the insulating paper through an indentation assembly, and bends and forms along the indentations through a forming assembly, so that the insulating paper is processed into a rectangle and then inserted into the stator through an insertion assembly, improving the practicability and working efficiency of the inserting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the content of the present invention easier to be clearly understood, the following further describes the present invention in detail according to specific embodiments of the present invention in conjunction with the drawings, wherein:

[0022] Figure 1 is a schematic structural diagram of an insulating paper inserting device for a new energy flat wire motor stator in a preferred embodiment of the present invention;

[0023] Figure 2 is a schematic structural diagram of a pre-paper feeding assembly in a preferred embodiment of the present invention;

[0024] Figure 3 is a schematic connection structural diagram of an indentation assembly, a forming assembly, and an insertion assembly in a preferred embodiment of the present invention;

[0025] Figure 4 is a schematic structural diagram of an indentation assembly in a preferred embodiment of the present invention;

[0026] Figure 5 is a schematic structural diagram of a first forming unit in a preferred embodiment of the present invention;

[0027] Figure 6 is a schematic connection structural diagram of a bottom plate, a second paper passing groove, and a third paper passing groove in a preferred embodiment of the present invention;

[0028] Figure 7 is a schematic structural diagram of a second forming unit in a preferred embodiment of the present invention;

[0029] Figure 8 is a schematic structural diagram of a forming groove in a preferred embodiment of the present invention;

[0030] Figure 9 is Figure 3 an enlarged view of part A of

[0031] Figure 10 is Figure 3 an enlarged view of part B of

[0032] Figure 11 is a schematic structural diagram of a driving unit in a preferred embodiment of the present invention;

[0033] Figure 12 It is a schematic structural diagram of the mobile unit in the preferred embodiment of the present invention.

[0034] Explanation of the reference numerals in the accompanying drawings of the specification: 100, pre-feeding paper assembly; 101, paper tray holder; 102, first guiding wheel; 103, second guiding wheel; 104, third guiding wheel; 105, first in-place sensor; 106, second in-place sensor; 107, second groove; 108, second convex part; 200, indentation assembly; 201, first indentation roller; 202, second indentation roller; 203, first groove; 204, first convex part; 300, forming assembly; 301, bottom plate; 302, first paper passing slot; 303, second paper passing slot; 304, third paper passing slot; 305, pushing unit; 3051, pushing plate; 3052, second motor; 3053, driving wheel; 3054, cam; 3055, rolling wheel; 3056, first connecting member; 306, forming slot; 307, sliding slot; 308, limiting member; 309, encoder; 310, cutting knife; 400, inserting assembly; 401, push rod; 402, third motor; 403, lead screw; 404, moving block; 405, second connecting member. Detailed implementation manners

[0035] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and be able to implement it, but the illustrated embodiments are not intended to limit the present invention.

[0036] It should be noted that when an element is referred to as being "arranged on" or "fixedly arranged on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is referred to as being "fixedly arranged on" another element or "fixedly connected to" another element, the connection between them can be a detachable fixing method or a non-detachable fixing method. When an element is considered to be "connected" or "rotatably connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right", "up", "down" and similar expressions are only for the purpose of illustration and do not represent the only implementation manner.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific implementation manners and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0038] In the present invention, terms such as "first", "second", "third", etc. are used not to represent specific quantities and sequences, but merely for name distinction.

[0039] In some embodiments, as shown in Figures 1-12 a new energy flat wire motor stator insulating paper inserting device of the present invention is used to make the insulating paper on the paper disc into a rectangle and insert it into the paper slot of the motor stator, and includes:

[0040] A pre-feeding paper assembly 100, which includes a paper disc rack 101, a first power source, a first guide wheel 102 and a second guide wheel 103. The paper disc is arranged on the paper disc rack 101, the first power source drives the paper disc to rotate, and the insulating paper passes between the first guide wheel 102 and the second guide wheel 103 to pre-draw the insulating paper on the paper disc; wherein, the first power source is preferably a first motor;

[0041] An indentation assembly 200, which includes a first indentation roller 201 and a second indentation roller 202. After the insulating paper passes between the first guide wheel 102 and the second guide wheel 103, it is located between the first indentation roller 201 and the second indentation roller 202. A first groove 203 is provided on the circumferential direction of the first indentation roller 201, and a first convex portion 204 is provided on the circumferential direction of the second indentation roller 202. The first convex portion 204 is adapted to the first groove 203 to form an indentation;

[0042] A forming assembly 300, which includes a first forming unit, a second forming unit, a cutting unit and a third forming unit; the first forming unit bends the insulating paper along the indentation; the second forming unit is used to converge and form the insulating paper; the cutting unit is used to cut the insulating paper; the third forming unit includes a pushing unit 305 and a forming groove 306, and the pushing unit 305 pushes the insulating paper into the forming groove 306 to make the insulating paper formed into a rectangle;

[0043] An inserting assembly 400, which includes a moving unit and a push rod 401. The push rod 401 is slidably arranged in the forming groove 306, and the moving unit drives the push rod 401 to slide along the forming groove 306. Before the pushing unit 305 pushes the insulating paper into the forming groove 306, the moving unit drives the push rod 401 to leave below the pushing unit 305 so that the insulating paper can smoothly enter the forming groove 306. After the insulating paper is formed, the moving unit drives the push rod 401 to move to push the insulating paper from the forming groove 306 into the stator.

[0044] It should be noted that the indentation assembly 200, the forming assembly 300 and the inserting assembly 400 are all arranged on the substrate 5, and the substrate 5 is arranged vertically;

[0045] In one embodiment, the first forming unit includes a bottom plate 301, a first paper passing groove 302, a second paper passing groove 303, and a third paper passing groove 304. The first paper passing groove 302 is used to bend the insulating paper along the indentation. The second paper passing groove 303 is used to bend the bent part of the insulating paper again. The third paper passing groove 304 is used to gather the insulating paper;

[0046] It should be noted that the groove width of the first paper passing groove 302 gradually increases from top to bottom to bend the insulating paper along the indentation. The second paper passing groove 303 is a U-shaped groove. A chamfer is provided at one end of the second paper passing groove 303 close to the first paper passing groove 302. The third paper passing groove 304 is a U-shaped groove, and the groove width of the third paper passing groove 304 is smaller than that of the second paper passing groove 303;

[0047] In one embodiment, both the first groove 203 and the first protrusion 204 are provided with four, so as to form four indentations on the insulating paper. The insulating paper forms the first, second, third, fourth, fifth, sixth, seventh, and eighth indentations from outside to inside in sequence. The width of the indentation is relatively narrow, and it is bent at 45° at each indentation, so that the insulating paper is closer to a rectangle after forming, and its right angle is chamfered;

[0048] In addition, the moving unit is preferably: a third motor 402, a lead screw 403, a moving block 404, and a second connecting member 405. The third motor 402 drives the lead screw 403 to rotate, so that the moving block 404 translates along the lead screw 403. A strip-shaped opening is provided on one side of the forming groove 306. The second connecting member 405 passes through the strip-shaped opening and is connected to the push rod 401, so that the push rod 401 reciprocates.

[0049] When the insertion device is in operation, the paper tray is driven to rotate by the first power source 101, and the insulating paper on the paper tray is drawn out along the first guide wheel 102 and the second guide wheel 103, so that the insulating paper extends along the first indentation roller 201 and the second indentation roller 202. During the extension process, the insulating paper forms indentations under the extrusion of the first groove 203 and the first protrusion 204. Subsequently, the insulating paper passes through the space between the bottom plate 301 and the first paper passing groove 302. Since the groove width of the first paper passing groove 302 gradually increases from top to bottom, the two sides of the insulating paper gradually converge along the third and fourth creases from outside to inside and fit with the inner wall of the first paper passing groove 302. Subsequently, the insulating paper extends along the second paper passing groove 303. During this process, since the second paper passing groove 303 is a U-shaped structure and has a top surface, the two sides of the insulating paper bent upward are bent by 45° again along the first and second creases from outside to inside, making it present a rectangular shape with a notch, and the notch faces away from the bottom plate 301. Then, through the cutting unit, the insulating paper extends along the third paper passing groove 304. During this process, since the groove width of the third paper passing groove 304 is smaller than that of the second paper passing groove 303, the insulating paper is bent along the fifth and sixth creases from outside to inside to form a closed rectangle. Finally, the insulating paper is pushed into the forming groove 306 by the pushing unit 305. Since the inner contour of the forming groove 306 is rectangular, the insulating paper can be shaped into a rectangle, and one end of it is sealed, further improving the insulation performance. And the formed insulating paper is directly inserted into the paper slot of the stator through the insertion assembly 400, avoiding the problem that the insulating paper cannot be inserted into the stator due to deformation;

[0050] In this embodiment, the first indentation roller 201 and the second indentation roller 202 roll under the action of the second power source, pulling the insulating paper pre-released by the pre-paper feeding assembly 100; wherein, the second power source can be any device such as a motor that can drive the first indentation roller 201 and the second indentation roller 202 to rotate.

[0051] In addition, a rotating mechanism is provided below the stator to rotate the stator so that the insulating paper is inserted into the stator in turn; at the same time, a manipulator is also provided on the overall device for grasping the stator on the production line to the insulating paper insertion station.

[0052] In one of the embodiments, referring to Figures 1-2 As shown, the first power source of the pre-paper feeding assembly 100 further includes a third guide wheel 104, and the insulating paper is threaded between the first guide wheel 102 and the second guide wheel 103 and passes around the third guide wheel 104 and then is threaded between the first indentation roller 201 and the second indentation roller 202. By passing around the third guide wheel 104 and then being threaded between the first indentation roller 201 and the second indentation roller 202, the first power source can further play a role in limiting and guiding, improving the stability of the insulating paper during extension.

[0053] In some embodiments, referring to Figure 2 As shown, the pre-feeding paper assembly 100 further includes a first in-place sensor 105 and a second in-place sensor 106, and the first in-place sensor 105 and the second in-place sensor 106 are respectively arranged on both sides of the third guide wheel 104. The first in-place sensor 105 is used to detect whether the pre-released insulating paper passes through the first guide wheel 102 and the second guide wheel 103 normally. Subsequently, the second in-place sensor 106 is used to detect the pre-release amount of the insulating paper. When the pre-released insulating paper reaches the second in-place sensor 106, the second in-place sensor 106 detects the insulating paper and controls the first indentation roller 201 to roll to draw away the pre-released insulating paper.

[0054] Preferably, referring to Figure 2 As shown, the first guide wheel 102 is provided with a second groove 107, and the second guide wheel 103 is provided with a second convex portion 108. The second groove 107 is adapted to the second convex portion 108 so that the insulating paper is released along the second groove 107. The insulating paper is clamped into the second groove 107 and is limited in the second groove 107 by the second convex portion 108, thereby making the transmission process of the insulating paper more stable.

[0055] In some embodiments, referring to Figure 7 As shown, the second forming unit includes a chute 307 and a plurality of converging units. The insulating paper slides along the chute 307, and the plurality of converging units are arranged along the length direction of the chute 307. The converging unit includes two limiting members 308 respectively arranged on both sides of the chute 307. The two limiting members 308 in the same set of converging units are arranged opposite to each other, and the width between the two limiting members 308 in the same set of converging units decreases along the extension direction of the insulating paper. When the insulating paper extends along the chute 307, the converging units on both sides gradually converge and approach each other, so that the insulating paper is bent naturally along the indentation.

[0056] In some embodiments, referring to Figure 9 As shown, the first forming unit and the second forming unit are further provided with an encoder 309, and the encoder 309 is used to generate a length bar code on the insulating paper. By generating a length bar code on the insulating paper through the encoder 309, it is convenient to read the length parameter of the extension of the insulating paper.

[0057] Preferably, referring to Figure 10 As shown, the cutting unit includes a cutting knife 310 and a code reader. The code reader reads the information of the length bar code and controls the cutting knife 310 to cut. When the length parameter read by the code reader reaches a preset value, that is, when the length of the insulating paper passing under the code reader is sufficient, the cutting knife 310 cuts the insulating paper so that the length of this section of the insulating paper is adapted to the length of the stator.

[0058] In some embodiments, referring to Figure 3 and Figure 11As shown, the pressing unit 305 includes a driving unit and a pressing plate 3051. The driving unit drives the pressing plate 3051 to press or retract. When it is necessary to press the insulating paper into the forming groove 306, the driving unit drives the pressing plate 3051 to press until the insulating paper enters the forming groove 306. At this time, the part of the insulating paper that extends beyond the forming groove 306 at one end bends upward to form a seal. Then, the driving unit drives the pressing plate 3051 to retract;

[0059] It should be noted that the driving unit is preferably: the second motor 3052, the driving wheel 3053, the cam 3054, the rolling wheel 3055 and the first connecting member 3056. The second motor 3052 is arranged on the other side of the substrate 5 where the pressing plate 3051 is arranged. The second motor 3052 drives the driving wheel 3053 to rotate. The cam 3054 is coaxially arranged with the driving wheel 3053. There is a recess in the driving wheel 3053 with the same shape as the cam 3054. The cam 3054 is arranged in the recess and there is a certain gap between the cam 3054 and the inner wall of the recess. The rolling wheel 3055 is clamped in the gap and rolls along the gap. When the driving wheel 3053 rotates, the rolling wheel 3055 rolls along the gap and drives the first connecting member 3056 to reciprocate, so as to realize the pressing or retraction of the pressing plate 3051.

[0060] Obviously, the above embodiments are only examples for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A stator insulating paper inserting device for a new energy flat wire motor, which is used to make the insulating paper on a paper disk into a rectangle and insert it into the paper groove of the motor stator, is characterized in that Comprising: A pre-feeding paper assembly, the pre-feeding paper assembly includes a paper tray holder, a first power source, a first guide wheel and a second guide wheel. The paper tray is arranged on the paper tray holder. The first power source drives the paper tray to rotate. The insulating paper passes between the first guide wheel and the second guide wheel to pre-draw the insulating paper on the paper tray; An indentation assembly, the indentation assembly includes a first indentation roller and a second indentation roller. After the insulating paper passes between the first guide wheel and the second guide wheel, it is located between the first indentation roller and the second indentation roller. A first groove is provided on the circumferential direction of the first indentation roller, and a first convex portion is provided on the circumferential direction of the second indentation roller. The first convex portion is adapted to the first groove to form an indentation; A forming assembly, the forming assembly includes a first forming unit, a second forming unit, a cutting unit and a third forming unit; the first forming unit bends the insulating paper along the indentation; the second forming unit is used to converge and form the insulating paper; the cutting unit is used to cut the insulating paper; the third forming unit includes a pushing unit and a forming groove, and the pushing unit pushes the insulating paper into the forming groove to form the insulating paper into a rectangle; An insertion assembly, the insertion assembly includes a moving unit and a push rod. The push rod is slidably arranged in the forming groove, and the moving unit drives the push rod to slide along the forming groove; The first forming unit includes a bottom plate, a first paper passing groove, a second paper passing groove and a third paper passing groove. The first paper passing groove is used to bend the insulating paper along the indentation. The second paper passing groove is used to bend the bent part of the insulating paper again. The third paper passing groove is used to gather the insulating paper; The width of the first paper passing groove gradually increases from top to bottom to bend the insulating paper along the indentation. The second paper passing groove is a U-shaped groove. A chamfer is provided at one end of the second paper passing groove close to the first paper passing groove. The third paper passing groove is a U-shaped groove, and the width of the third paper passing groove is smaller than the width of the second paper passing groove.

2. The insulating paper inserting device for the stator of a new energy flat wire motor according to claim 1, characterized in that: The pre-feeding paper assembly further includes a third guide wheel. The insulating paper passes between the first guide wheel and the second guide wheel and bypasses the third guide wheel and then passes between the first indentation roller and the second indentation roller.

3. The insulating paper inserting device for the stator of a new energy flat wire motor according to claim 2, wherein: The pre-feeding paper assembly further includes a first in-place sensor and a second in-place sensor. The first in-place sensor and the second in-place sensor are respectively arranged on both sides of the third guide wheel.

4. A new energy flat wire motor stator insulating paper inserting device according to claim 2, characterized in that: A second groove is provided on the first guide wheel, and a second convex portion is provided on the second guide wheel. The second groove is adapted to the second convex portion to release the insulating paper along the second groove.

5. The stator insulating paper inserting device for a new energy flat wire motor according to claim 1, wherein: Both the first groove and the first convex portion are provided with four to form four indentations on the insulating paper.

6. The stator insulation paper inserting device for a new energy flat wire motor according to claim 1, characterized in that: The second forming unit includes a sliding groove and multiple sets of converging units. The insulating paper slides along the sliding groove, and the multiple sets of converging units are arranged along the length direction of the sliding groove. Each converging unit includes two limiting members respectively arranged on both sides of the sliding groove. The two limiting members within the same set of converging units are arranged opposite to each other, and the width between the two limiting members within the same set of converging units decreases along the extending direction of the insulating paper.

7. A stator insulating paper inserting device for a new energy flat wire motor according to claim 1, characterized in that: The first forming unit and the second forming unit are also provided with an encoder, which is used to generate a length bar code on the insulating paper.

8. A new energy flat wire motor stator insulating paper inserting device according to claim 1, characterized in that: The cutting unit includes a cutting knife and a code reader. The code reader reads the information of the length bar code and controls the cutting knife to perform cutting.

9. The stator insulation paper inserting device for a new energy flat wire motor according to claim 1, wherein: The pressing unit includes a driving unit and a pressing plate. The driving unit drives the pressing plate to press or retract.

Images