Teflon spraying device for motor end cover production and spraying method thereof

Abstract

The invention relates to the technical field of motor end cover production equipment, in particular to a Teflon spraying device for motor end cover production and a spraying method of the Teflon spraying device. The technical problems that when an existing spraying device is used for spraying a motor end cover, spraying is not comprehensive enough, Teflon components are not uniform enough, and then the spraying effect is poor are solved. The Teflon spraying device for motor end cover production comprises an outer frame, and a servo motor is fixedly connected into the outer frame. One motor end cover is driven to rotate through a driving motor, meanwhile, a servo motor drives an extrusion ring to rotate, the extrusion ring enables a roller to drive a spraying pipe to move along a limiting strip and rotate slowly through a moving rod, Teflon can keep an angle perpendicular to the surface of the motor end cover for spraying, and then spraying is more uniform; and then the servo motor drives the supporting plate to rotate through the overrun clutch, the supporting plate rotates to enable the motor end cover to be rapidly replaced, and therefore the spraying efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of motor end cover production equipment, and in particular to a Teflon spraying device and a spraying method for motor end cover production. Background Art

[0002] During the production process of motor end covers, Teflon needs to be sprayed on the surface of the motor end covers. In order to improve the spraying efficiency, the staff usually replaces multiple motor end covers without interrupting the spraying. During the spraying process, the staff needs to control the spraying direction of the spray pipe to always be perpendicular to the surface of the motor end cover to make the spraying more uniform, so as to achieve the purpose of effective spraying.

[0003] Since it is difficult to spray the edge of the motor end cover during spraying, and the current spraying device is not convenient for edge-sealing spraying of the motor end cover, the spraying is not comprehensive enough, and Teflon is prone to precipitation after being placed, and the existing spraying device is not convenient for stirring Teflon during spraying, which causes the composition of Teflon to be uneven, resulting in poor spraying effect. Summary of the invention

[0004] In order to overcome the above shortcomings, the present invention provides a Teflon spraying device and a spraying method for motor end cover production, which can perform edge sealing spraying on the motor end cover to make the spraying more comprehensive and can stir the Teflon evenly during spraying, thereby enhancing the spraying effect.

[0005] The technical implementation scheme of the present invention is: a Teflon spraying device and a spraying method for motor end cover production, including an outer frame, a servo motor is fixedly connected to the outer frame, the servo motor is provided with a transmission mechanism for driving, the transmission mechanism is provided with a limit plate, the motor end cover is placed on the limit plate, and the transmission mechanism is provided with a spraying mechanism for spraying the surface of the motor end cover.

[0006] Furthermore, the transmission mechanism includes a transmission shaft, which is fixedly connected to one end of the output shaft of the servo motor, and an overrunning clutch is fixedly connected to the transmission shaft, and a support plate is fixedly connected to the outer side of the overrunning clutch, and a plurality of rotating shafts are evenly rotatably connected to the support plate, and each rotating shaft is fixedly connected to a limit plate on the top, and a motor end cover is placed on each limit plate, and a plurality of protrusions are evenly provided on the limit plate, and each protrusion of the limit plate passes through the motor end cover, and a driven gear is fixedly connected to the bottom of each rotating shaft, and a support frame is fixedly connected to one side of the servo motor, and a drive motor is fixedly connected to the support frame, and a transmission gear is fixedly connected to the output shaft of the drive motor, and the transmission gear meshes with one of the driven gears.

[0007] Furthermore, the spraying mechanism includes an extrusion ring, which is fixedly connected to the transmission shaft, a moving rod is slidably connected to the outer frame, and the moving rod is slidably connected to the extrusion ring on one side close to the transmission shaft, a sliding frame is slidably connected to the moving rod, a rotating frame is rotatably connected between the two sides of the bottom of the sliding frame, and the rotating frame is respectively connected to the two sides of the sliding frame with torsion springs, a spray pipe is fixedly connected to the rotating frame, and two limit bars are fixedly connected to one side of the inner wall of the outer frame, the two limit bars are symmetrically arranged, and both sides of the rotating frame are fixedly connected to limit blocks, and two rollers are respectively rotatably connected to the two limit blocks, and the two rollers on the same limit block are respectively in contact with the upper and lower surfaces of the limit bar on the same side.

[0008] Furthermore, the extrusion ring is arranged obliquely.

[0009] Furthermore, a side of the limiting strip close to the transmission shaft is an arc-shaped structure.

[0010] Furthermore, it also includes an edge sealing mechanism, which is arranged on the outer frame, and is used for sealing the edge of the motor end cover by spraying paint, and the edge sealing mechanism includes a liquid valve, which is fixedly connected to a side of the inner wall of the outer frame, a feed port is opened on a top side of the liquid valve, and a discharge port is opened on a bottom side of the liquid valve, a sliding shaft is fixedly connected to the moving rod, and the sliding shaft is slidably connected to the liquid valve, and a blocking block is slidably connected to the sliding shaft, the blocking block is located in the liquid valve, the blocking block contacts the inner wall of the liquid valve, the blocking block blocks the feed port of the liquid valve, a connecting pipe is fixedly connected to the discharge port of the liquid valve, and an edge sealing pipe is fixedly connected to the bottom of the connecting pipe, and the edge sealing pipe is connected to the liquid valve via a connecting pipe.

[0011] Furthermore, the nozzle of the edge sealing pipe is arranged in an arc shape.

[0012] Furthermore, it also includes a stirring mechanism, which is arranged on the spray pipe and is used to stir the sprayed Teflon. The stirring mechanism includes a limiting frame, which is fixedly connected to the inner wall of the spray pipe, and a bidirectional threaded shaft is fixedly connected to the limiting frame. A threaded block is threadedly connected to the bidirectional threaded shaft, and a flap fan is fixedly connected to the threaded block.

[0013] Furthermore, a heating ring is also included, and a plurality of the heating rings are respectively fixedly connected to the bottom of a plurality of the limiting plates.

[0014] A spraying method of a Teflon spraying device for producing motor end covers, comprising the following steps:

[0015] Step 1: When the motor end cover needs to be placed and sprayed, the staff will place multiple motor end covers on each of the limit plates through the protrusions of the limit plates, and connect the Teflon to the spray pipe through a hose, and then connect the Teflon to the feed port of the liquid valve through a pipeline. Then the staff will start the servo motor and the drive motor, and the drive motor will drive one of the motor end covers to rotate, and at the same time, the servo motor will drive the extrusion ring to rotate. The extrusion ring makes the roller drive the spray pipe to move while rotating slowly, and Teflon will spray the surface of the motor end cover evenly. Then, the servo motor drives the support plate to rotate through the overrunning clutch so that the motor end cover can be quickly replaced, thereby completing the spraying.

[0016] Step 2: During spraying, the moving rod moves downward so that the blocking block no longer blocks the feed port of the liquid valve, and Teflon enters the edge sealing tube through the liquid valve and the connecting tube. Then, Teflon is sprayed through the edge sealing tube to the bottom edge of the high-speed rotating motor end cover, thereby completing the edge sealing. When Teflon enters the spray pipe, the flap fan rotates. The rotation of the flap fan reciprocates along the bidirectional threaded shaft through the threaded block, thereby stirring the passing Teflon; Step 3: When the spraying is completed, the staff turns off the drive motor and the servo motor, and removes the Teflon from the spray pipe through a hose, and removes the Teflon from the feed port of the liquid valve through a pipe. Then, the staff removes the motor end cover after spraying.

[0017] The present invention has the following advantages: 1. The present invention drives one of the motor end covers to rotate at high speed through a driving motor, and at the same time, the servo motor drives the transmission shaft and the extrusion ring to rotate together. The extrusion ring rotates to extrude the moving rod downward, and the moving rod moves through the sliding frame to make the rotating frame, the roller and the spray pipe move downward together. When the roller moves downward, it will move the spray pipe laterally along the arc structure of the limit bar. At the same time, the roller will also pull the spray pipe to rotate slowly through the limit bar. Teflon will always maintain a perpendicular angle to the surface of the motor end cover for spraying through the movement and rotation of the spray pipe, thereby making the spraying more uniform. Subsequently, the servo motor drives the support plate to rotate through the overrunning clutch. The rotation of the support plate will cause the motor end cover to rotate a certain angle, thereby quickly replacing the motor end cover, thereby improving the spraying efficiency.

[0018] 2. When the moving rod moves downward, it drives the sliding shaft to move downward, so that the blocking block moves downward. The blocking block moves downward and no longer blocks the feed port of the liquid valve. At the same time, the feed port of the liquid valve will be connected with the discharge port of the liquid valve. Teflon will be pumped into the liquid valve through the feed port of the liquid valve. Then, Teflon will enter the edge sealing pipe from the liquid valve through the connecting pipe. Then, Teflon will be sprayed to the bottom edge of the high-speed rotating motor end cover through the edge sealing pipe, and then the edge of the motor end cover is sealed, so that the spraying of the motor end cover is more comprehensive, thereby enhancing the spraying effect.

[0019] 3. The flow of Teflon will drive the flap fan to rotate, and the rotation of the flap fan will drive the thread block to rotate. The rotation of the thread block will drive the rotating flap fan to one side through the bidirectional threaded shaft. Then the thread block continues to rotate and drives the flap fan to move in the opposite direction and reset through the bidirectional threaded shaft. Repeat this. The rotation of the thread block will drive the rotating flap fan to move back and forth along the bidirectional threaded shaft through the bidirectional threaded shaft, thereby stirring the Teflon passing through, making the composition in the Teflon more uniform, thereby improving the quality of Teflon, and further enhancing the spraying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of the present invention.

[0022] Figure 3 It is a partial cross-sectional three-dimensional structural schematic diagram of the present invention.

[0023] Figure 4 It is a partial three-dimensional structural schematic diagram of the transmission mechanism and the spraying mechanism of the present invention.

[0024] Figure 5 It is a schematic diagram of a partially disassembled three-dimensional structure of the spraying mechanism of the present invention.

[0025] Figure 6 For the present invention Figure 2 Schematic diagram of the enlarged three-dimensional structure of A in the middle.

[0026] Figure 7 It is a partially cutaway three-dimensional structural schematic diagram of the edge sealing mechanism of the present invention.

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the sliding shaft and the blocking block of the present invention.

[0028] Fig. 9 It is a schematic diagram of the cross-sectional three-dimensional structure of the stirring mechanism of the present invention.

[0029] Fig.10 It is a partial three-dimensional structural schematic diagram of the present invention.

[0030] The meaning of the reference numerals in the figure are as follows: 1: outer frame, 2: servo motor, 31: transmission shaft, 32: overrunning clutch, 33: support plate, 34: rotating shaft, 35: driven gear, 36: support frame, 37: driving motor, 38: transmission gear, 4: limit plate, 5: motor end cover, 61: extrusion ring, 62: moving rod, 63: sliding frame, 64: rotating frame, 65: torsion spring, 66: spray pipe, 67: limit strip, 68: limit block, 69: roller, 71: liquid valve, 72: sliding shaft, 73: blocking block, 74: connecting pipe, 75: edge sealing pipe, 81: limit frame, 82: bidirectional threaded shaft, 83: threaded block, 84: thousand-blade fan, 9: heating ring. DETAILED DESCRIPTION

[0031] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, and bonding in the prior art, which will not be described in detail here.

[0032] Embodiment 1: A Teflon spraying device and a spraying method for producing a motor end cover, such as Figure 1-Figure 10 As shown, it includes an outer frame 1, a servo motor 2 is connected to the inner part of the outer frame 1 by bolts, the servo motor 2 is provided with a transmission mechanism for driving, the transmission mechanism is provided with a limit plate 4, a motor end cover 5 is placed on the limit plate 4, and the transmission mechanism is provided with a spraying mechanism for spraying the surface of the motor end cover 5.

[0033] The transmission mechanism includes a transmission shaft 31, which is connected to one end of the output shaft of the servo motor 2 by bolts, and an overrunning clutch 32 is connected to the transmission shaft 31 by a flat key. A support plate 33 is fixedly connected to the outer side of the overrunning clutch 32, and a plurality of rotating shafts 34 are evenly rotatably connected to the support plate 33. A limit plate 4 is welded to the top of each rotating shaft 34, and a motor end cover 5 is placed on each of the limit plates 4. A plurality of protrusions are evenly arranged on the limit plates 4, and each protrusion of the limit plates 4 passes through the motor end cover 5. A driven gear 35 is connected to the bottom of each rotating shaft 34 by a flat key. A support frame 36 is connected to one side of the servo motor 2 by bolts, and a drive motor 37 is connected to the support frame 36 by bolts. A transmission gear 38 is connected to the output shaft of the drive motor 37 by a flat key, and the transmission gear 38 is meshed with one of the driven gears 35.

[0034] The spraying mechanism includes an extrusion ring 61, which is connected to the transmission shaft 31 through a flat key, a moving rod 62 is slidably connected to the outer frame 1, and the moving rod 62 is slidably connected to the extrusion ring 61 on one side close to the transmission shaft 31, a sliding frame 63 is slidably connected to the moving rod 62, a rotating frame 64 is rotatably connected between the two sides of the bottom of the sliding frame 63, and the rotating frame 64 is respectively connected to the two sides of the sliding frame 63 with torsion springs 65, and a spray pipe 66 is connected to the rotating frame 64 through bolts, and the spray pipe 66 is used for spraying Teflon, two limit bars 67 are welded on one side of the inner wall of the outer frame 1, and the two limit bars 67 are symmetrically arranged, and both sides of the rotating frame 64 are connected to limit blocks 68 by bolts, and two rollers 69 are respectively rotatably connected to the two limit blocks 68, and the two rollers 69 on the same limit block 68 are respectively in contact with the upper and lower surfaces of the limit bar 67 on the same side.

[0035] The extrusion ring 61 is disposed obliquely, and the extrusion ring 61 disposed obliquely is used to squeeze the moving rod to move up and down.

[0036] The side of the limiting strip 67 close to the transmission shaft 31 is an arc-shaped structure, and the roller 69 is used to drive the spraying pipe 66 to rotate slowly through the arc-shaped structure of the limiting strip 67 .

[0037] First, the staff places the motor end cover 5 to be sprayed on the limit plate 4 through the protrusion of the limit plate 4, and connects the Teflon to the spray pipe 66 through a hose. Then the staff starts the servo motor 2 and the drive motor 37. The high-speed rotation of the output shaft of the drive motor 37 will drive one of the driven gears 35 to rotate at high speed through the transmission gear 38, and then drive one of the rotating shafts 34, one of the limit plates 4 and one of the motor end covers 5 to rotate at high speed. At the same time, the rotation of the output shaft of the servo motor 2 drives the transmission shaft 31 and the extrusion ring 61 to rotate together. The rotation of the extrusion ring 61 will squeeze the moving rod 62 to move downward, and the moving rod The movement of 62 will drive the rotating frame 64 and the spraying pipe 66 to move downward together through the sliding frame 63, and the spraying pipe 66 will spray Teflon on the top of the rotating motor end cover 5. When the rotating frame 64 moves downward, it will drive the limit block 68 and the roller 69 to move downward together. When the roller 69 moves downward, it will drive the rotating frame 64 and the spraying pipe 66 to move horizontally in the direction close to the transmission shaft 31 along the arc structure of the limit bar 67. At the same time, the roller 69 will also pull the rotating frame 64 and the spraying pipe 66 to rotate slowly, and the torsion spring 65 will be twisted. The Teflon will always maintain an angle perpendicular to the surface of the motor end cover 5 through the movement and rotation of the spraying pipe 66. The servo motor 2 is sprayed at a certain angle, thereby making the spraying more uniform. Subsequently, the output shaft of the servo motor 2 rotates in the reverse direction to drive the support plate 33 to rotate through the overrunning clutch 32. The rotation of the support plate 33 drives the rotating shaft 34, the driven gear 35, the limit plate 4 and the motor end cover 5 to rotate at a certain angle. The rotation of the driven gear 35 will disengage from the transmission gear 38, and then another driven gear 35 will mesh with the rotating transmission gear 38. The transmission gear 38 will make the other motor end cover 5 rotate at a high speed through another driven gear 35, and then the motor end cover 5 can be quickly replaced, thereby improving the spraying efficiency. The reverse rotation of the transmission shaft 31 will drive the extruder 34, the driven gear 35, the limit plate 4 and the motor end cover 5 to rotate at a certain angle. The pressure ring 61 rotates in the opposite direction, and the extrusion ring 61 rotates in the opposite direction to squeeze the moving rod 62 to reset upward. The reset of the moving rod 62 will cause the rotating frame 64, the spray pipe 66 and the roller 69 to reset upward together. The upward reset of the roller 69 will cooperate with the arc structure of the limit strip 67 and the reset of the torsion spring 65 to make the rotating frame 64 and the spray pipe 66 rotate in the opposite direction to reset. Then the spray pipe 66 will spray Teflon on the surface of the other motor end cover 5. After the spraying is completed, the staff turns off the drive motor 37 and the servo motor 2, and removes the Teflon from the spray pipe through the hose. Then the staff removes the motor end cover 5 after spraying.

[0038] Embodiment 2: Based on embodiment 1, Figure 2-Figure 8As shown, it also includes an edge sealing mechanism, which is arranged on the outer frame 1 and is used to spray paint the edge of the motor end cover 5 for edge sealing. The edge sealing mechanism includes a liquid valve 71, which is connected to one side of the inner wall of the outer frame 1 by bolts, and a feed inlet is opened on one side of the top of the liquid valve 71, and a discharge port is opened on one side of the bottom of the liquid valve 71. A sliding shaft 72 is welded on the moving rod 62, and the sliding shaft 72 is slidably connected to the liquid valve 71. A blocking block 73 is slidably connected to the sliding shaft 72, and the blocking block 73 is located in the liquid valve 71. The blocking block 73 contacts the inner wall of the liquid valve 71, and the blocking block 73 blocks the feed port of the liquid valve 71. The blocking block 73 is used to block and open the flow of Teflon. A connecting pipe 74 is fixedly connected to the discharge port of the liquid valve 71, and a sealing edge pipe 75 is fixedly connected to the bottom of the connecting pipe 74. The sealing edge pipe 75 is connected to the liquid valve 71 through the connecting pipe 74.

[0039] The nozzle of the edge sealing tube 75 is arranged in an arc shape, and the nozzle of the edge sealing tube 75 arranged in an arc shape is used to spray Teflon on the bottom edge of the motor end cover 5 .

[0040] Before the staff starts the servo motor 2 and the drive motor 37, the staff first connects the Teflon to the feed port of the liquid valve 71 through a pipe. When the moving rod 62 moves downward, the moving rod 62 will drive the sliding shaft 72 to move downward so that the blocking block 73 moves downward. The blocking block 73 moves downward and no longer blocks the feed port of the liquid valve 71. At the same time, the feed port of the liquid valve 71 will be connected to the discharge port of the liquid valve 71. The Teflon will be pumped into the liquid valve 71 through the feed port of the liquid valve 71, and then the Teflon will be discharged from the liquid valve 71 through the connecting pipe 7. 4 enters into the edge sealing tube 75, and then the Teflon is sprayed to the bottom edge of the high-speed rotating motor end cover 5 through the edge sealing tube 75, thereby sealing the edge of the motor end cover 5, so that the spraying of the motor end cover 5 is more comprehensive, thereby enhancing the spraying effect. When the moving rod 62 is reset upward, the moving rod 62 will drive the sliding shaft 72 to reset upward. The upward reset of the sliding shaft 72 will cause the blocking block 73 to reset upward to block the feed port of the liquid valve 71 again. After the spraying is completed, the staff can remove the Teflon from the feed port of the liquid valve 71 through the pipeline.

[0041] Embodiment 3: Based on embodiment 2, Fig. 9As shown, it also includes a stirring mechanism, which is arranged on the spraying pipe 66, and is used to stir the sprayed Teflon. The stirring mechanism includes a limiting frame 81, and the limiting frame 81 is welded to the inner wall of the spraying pipe 66. A bidirectional threaded shaft 82 is welded to the limiting frame 81, and a threaded block 83 is threadedly connected to the bidirectional threaded shaft 82. A flap fan 84 is bolted to the threaded block 83, and the flap fan 84 is used to stir the Teflon.

[0042] When Teflon is sprayed through the spray pipe 66, the flow of Teflon will drive the flap fan 84 to rotate, and the rotation of the flap fan 84 will drive the thread block 83 to rotate. The rotation of the thread block 83 will drive the rotating flap fan 84 to move to one side through the two-way threaded shaft 82, and then the thread block 83 continues to rotate and drives the flap fan 84 to move in the opposite direction and reset through the two-way threaded shaft 82. Repeat this, the rotation of the thread block 83 will drive the rotating flap fan 84 to move back and forth along the two-way threaded shaft 82 through the two-way threaded shaft 82, thereby stirring the passing Teflon, thereby making the composition in the Teflon more uniform, thereby improving the quality of the Teflon, and further enhancing the spraying effect.

[0043] Embodiment 4: Based on the embodiment 3, Figure 3-Figure 10 As shown, a heating ring 9 is also included. Several heating rings 9 are respectively connected to the bottom of several limiting plates 4 by bolts. The heating rings 9 are used to dry the motor end cover 5.

[0044] Before the staff places the motor end cover 5, the staff first energizes the heating ring 9. After the staff has placed the motor end cover 5, the heating ring 9 will release heat when it is energized. Before spraying, the heating ring 9 will evaporate the moisture on the motor end cover 5 to keep the motor end cover 5 dry. After spraying, the heating ring 9 will quickly dry the Teflon sprayed on the motor end cover 5, so that the Teflon can be more easily attached to the surface of the motor end cover 5 during spraying. The Teflon is quickly dried after spraying, thereby improving the spraying efficiency of the Teflon. After spraying, the staff can turn off the power to the heating ring 9.

[0045] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A Teflon spraying device for motor end cover production, characterized by: The invention comprises an outer frame (1), a servo motor (2) is fixedly connected to the outer frame (1), a transmission mechanism for driving is provided on the servo motor (2), a limit plate (4) is provided on the transmission mechanism, a motor end cover (5) is placed on the limit plate (4), and a spraying mechanism for spraying the surface of the motor end cover (5) is provided on the transmission mechanism.

2. A Teflon spraying device for producing motor end covers according to claim 1, characterized in that: The transmission mechanism comprises a transmission shaft (31), the transmission shaft (31) is fixedly connected to one end of the output shaft of the servo motor (2), an overrunning clutch (32) is fixedly connected to the transmission shaft (31), a support plate (33) is fixedly connected to the outer side of the overrunning clutch (32), a plurality of rotating shafts (34) are evenly rotatably connected to the support plate (33), a limit plate (4) is fixedly connected to the top of each rotating shaft (34), a motor end cover (5) is placed on each limit plate (4), and the A plurality of protrusions are evenly arranged on the limit plate (4), each protrusion of the limit plate (4) passes through the motor end cover (5), a driven gear (35) is fixedly connected to the bottom of each rotating shaft (34), a support frame (36) is fixedly connected to one side of the servo motor (2), a driving motor (37) is fixedly connected to the support frame (36), a transmission gear (38) is fixedly connected to the output shaft of the driving motor (37), and the transmission gear (38) is meshed with one of the driven gears (35).

3. A Teflon spraying device for producing motor end covers according to claim 2, characterized in that: The spraying mechanism comprises an extrusion ring (61), the extrusion ring (61) is fixedly connected to the transmission shaft (31), a moving rod (62) is slidably connected to the outer frame (1), a side of the moving rod (62) close to the transmission shaft (31) is slidably connected to the extrusion ring (61), a sliding frame (63) is slidably connected to the moving rod (62), a rotating frame (64) is rotatably connected between two sides of the bottom of the sliding frame (63), and the rotating frame (64) is respectively connected to two sides of the sliding frame (63). A torsion spring (65) is connected between the rotating frame (64), a spray pipe (66) is fixedly connected to the rotating frame (64), two limit bars (67) are fixedly connected to one side of the inner wall of the outer frame (1), the two limit bars (67) are symmetrically arranged, both sides of the rotating frame (64) are fixedly connected to limit blocks (68), two limit blocks (68) are respectively rotatably connected to two rollers (69), and the two rollers (69) on the same limit block (68) are respectively in contact with the upper and lower surfaces of the limit bar (67) on the same side.

4. A Teflon spraying device for producing motor end covers according to claim 3, characterized in that: The extrusion ring (61) is arranged obliquely.

5. A Teflon spraying device for producing motor end covers according to claim 3, characterized in that: The side of the limiting strip (67) close to the transmission shaft (31) is an arc-shaped structure.

6. A Teflon spraying device for producing motor end covers according to claim 3, characterized in that: The motor end cover (5) is provided with an edge sealing mechanism, the edge sealing mechanism being arranged on the outer frame (1), the edge sealing mechanism being used for spraying paint on the edge of the motor end cover (5) to seal the edge, the edge sealing mechanism comprising a liquid valve (71), the liquid valve (71) being fixedly connected to one side of the inner wall of the outer frame (1), a feed inlet being provided on one side of the top of the liquid valve (71), a discharge outlet being provided on one side of the bottom of the liquid valve (71), a sliding shaft (72) being fixedly connected to the moving rod (62), the sliding shaft (72) slidingly connecting with the liquid valve (71) The sliding shaft (72) is slidably connected with a blocking block (73), the blocking block (73) is located in the liquid valve (71), the blocking block (73) contacts the inner wall of the liquid valve (71), the blocking block (73) blocks the feed port of the liquid valve (71), the discharge port of the liquid valve (71) is fixedly connected with a connecting pipe (74), the bottom of the connecting pipe (74) is fixedly connected with an edge sealing pipe (75), and the edge sealing pipe (75) is connected to the liquid valve (71) through the connecting pipe (74).

7. A Teflon spraying device for producing motor end covers according to claim 6, characterized in that: The nozzle of the edge sealing pipe (75) is arranged in an arc shape.

8. A Teflon spraying device for producing motor end covers according to claim 6, characterized in that: The invention also includes a stirring mechanism, which is arranged on the spraying pipe (66) and is used to stir the sprayed Teflon. The stirring mechanism includes a limiting frame (81), which is fixedly connected to the inner wall of the spraying pipe (66), and a bidirectional threaded shaft (82) is fixedly connected to the limiting frame (81), and a threaded block (83) is threadedly connected to the bidirectional threaded shaft (82), and a flap fan (84) is fixedly connected to the threaded block (83).

9. A Teflon spraying device for producing motor end covers according to claim 8, characterized in that: It also includes a heating ring (9), wherein a plurality of the heating rings (9) are respectively fixedly connected to the bottom of a plurality of the limiting plates (4).

10. A spraying method for a Teflon spraying device for producing motor end covers according to claim 9, characterized in that: The following steps are involved: Step 1: When the motor end cover (5) needs to be placed and sprayed, the staff will place multiple motor end covers (5) on each of the limit plates (4) through the protrusions of the limit plates (4), and at the same time connect the Teflon to the spray pipe (66) through a hose, and then connect the Teflon to the feed port of the liquid valve (71) through a pipeline. Then the staff will start the servo motor (2) and the drive motor (37), and the drive motor (37) will drive one of the motor end covers (5) to rotate, and at the same time the servo motor (2) will drive the extrusion ring (61) to rotate, and the extrusion ring (61) will make the roller (69) drive the spray pipe (66) to move and rotate slowly, and the Teflon will be evenly sprayed on the surface of the motor end cover (5). Then the servo motor (2) will drive the support plate (33) to rotate through the overrunning clutch (32) so that the motor end cover (5) can be quickly replaced, thereby completing the spraying; Step 2: During spraying, the moving rod (62) moves downward so that the blocking block (72) no longer blocks the feed port of the liquid valve (71), and the Teflon enters the edge sealing tube (75) through the liquid valve (71) and the connecting tube (74). Then, the Teflon is sprayed onto the bottom edge of the high-speed rotating motor end cover (5) through the edge sealing tube (75), thereby completing the edge sealing. When the Teflon enters the spraying tube (66), the diaphragm fan (84) rotates. The diaphragm fan (84) rotates through the threaded block (83) and reciprocates along the bidirectional threaded shaft (82), thereby stirring the Teflon passing through. Step 3: When the spraying is completed, the staff turns off the drive motor (37) and the servo motor (2), and at the same time removes the Teflon from the spray pipe (66) through a hose, and removes the Teflon from the feed port of the liquid valve (71) through a pipeline, and then the staff removes the motor end cover (5) after spraying.

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