A paper sticking machine for motor rear cover

Abstract

This invention discloses a motor back cover paper pasting machine, comprising: a material transfer mechanism including a rotatable turntable with its rotation axis extending vertically, and multiple positioning seats arranged around the center of the turntable on its top side; a paper feeding mechanism including a paper feeding board, an unwinding section, and a winding section, one side of the paper feeding board being a paper feeding edge, the unwinding section unwinding towards the paper feeding edge, and the winding section winding from the paper feeding edge, a bracket connected to the paper feeding board, at least two blades being horizontally spaced on the bracket, the top edges of the at least two blades forming a paper holding area, the paper holding area being spaced apart on one side of the paper feeding edge; and a paper pasting mechanism including a conveying section and a suction nozzle connected to the conveying section, the conveying section driving the suction nozzle to move between the paper holding area and a positioning seat. This invention can automatically paste the back cover paper mechanically, improving the stability and efficiency of back cover paper pasting, which is beneficial for reducing the defect rate of motor production and improving production efficiency.

Description

Technical Field

[0001] This invention relates to a machine tool, and more particularly to a motor back cover paper pasting machine. Background Technology

[0002] During motor manufacturing, sealing paper, also known as back cover paper, needs to be pasted onto the motor's rear cover to improve its performance. Currently, the sealing paper is mostly pasted manually. However, the gap between the center hole of the sealing paper and the bearing chamber of the motor's rear cover is only 0.1 mm, requiring high precision in pasting. Therefore, workers need to steadily place the sealing paper onto the motor's rear cover, demanding a high level of concentration. Workers are prone to fatigue during long hours, leading to uncontrollable pasting quality, a high defect rate, and difficulty in improving work efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a motor back cover paper pasting machine to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] The solution to the technical problem of this invention is:

[0005] A motor-mounted back cover paper pasting machine includes: a material transfer mechanism comprising a rotatable turntable with its rotation axis extending vertically, and a plurality of positioning seats arranged around the center of the turntable on its top side; a paper feeding mechanism comprising a paper feeding plate, an unwinding section, and a rewinding section, wherein one side of the paper feeding plate is a paper feeding edge, the unwinding section can unwind towards the paper feeding edge, and the rewinding section can rewind from the paper feeding edge; a bracket is connected to the paper feeding plate, and at least two blades are horizontally spaced on the bracket, the top edges of the at least two blades forming a paper holding area, the paper holding area being spaced apart on one side of the paper feeding edge; and a paper pasting mechanism comprising a transfer section and a suction nozzle, the suction nozzle being connected to the transfer section, and the transfer section being able to drive the suction nozzle to move between the paper holding area and one of the positioning seats.

[0006] This technical solution has at least the following beneficial effects: The motor to be glued is placed on the positioning seat of the turntable. The turntable rotates the positioning seat containing the motor to the side of the paper feeding mechanism. The unwinding section of the paper feeding mechanism can hold the wound tape, and the unwinding section can release the tape. The tape is led out to the feeding board, passes the feeding edge, and then folds towards the winding section. When the tape passes the feeding edge, the bending causes the back cover paper on the tape to separate. One side of the separated back cover paper first rests on the support formed by at least two blades. On the paper section, as the conveyor belt moves, the back cover paper continuously separates from the belt. The winding section then rewinds the conveyor belt after the back cover paper has come off. The transfer section moves the suction nozzle to the paper support area to pick up the back cover paper. Then, it moves the suction nozzle to the positioning seat at the set position to stick the back cover paper to the motor on the positioning seat, completing the seal. In this way, the back cover paper can be automatically pasted mechanically, which improves the stability and efficiency of the back cover paper pasting process, helps to reduce the defect rate of motor production, and improves production efficiency.

[0007] As a further improvement to the above technical solution, the paper feeding mechanism further includes a first lifting drive, a guide seat, and a positioning column. The first lifting drive has a fixed end and a movable end that can move in the vertical direction on the fixed end. The guide seat is connected to the fixed end and has a guide channel extending in the vertical direction. The positioning column is located below the gap between the paper feeding edge and the paper holding area. The bottom end of the positioning column extends into the guide channel and is connected to the movable end. The outer diameter of the top of the positioning column gradually decreases from bottom to top. The bottom surface of the suction nozzle is provided with an avoidance hole, and the bottom surface of the suction nozzle is provided with multiple negative pressure suction holes around the avoidance hole. After the back cover paper on the conveyor belt detaches, one side of the back cover paper rests on the paper support area, while the other side is just detached from the conveyor belt. At this time, the middle of the back cover paper is located between the paper support area and the paper feeding edge. The movable end of the first lifting drive drives the guide seat positioning column to move upward. The guide seat improves the stability of the positioning column when it moves up and down. The top of the positioning column gradually narrows, which makes it easy for the positioning column to pass through the hole in the middle of the back cover paper and position the back cover paper. At the same time, it moves the back cover paper upward to the bottom surface of the suction nozzle. The suction nozzle is connected to an external negative pressure source, which can generate negative pressure in the negative pressure suction hole on the bottom surface of the suction nozzle, thereby adsorbing the back cover paper. The avoidance hole on the bottom surface of the suction nozzle can avoid the positioning column, which can improve the accuracy of the suction nozzle when adsorbing the back cover paper, thereby further improving the positioning accuracy of the suction nozzle to stick the back cover paper to the motor, which is conducive to improving production quality.

[0008] As a further improvement to the above technical solution, the top surface of the feeding board is provided with a limiting groove extending in the left-right direction. The feeding edge is located on the side of the limiting groove facing the paper support area. The side of the feeding board facing the paper support area extends downward at an angle away from the paper support area. A pressure plate is provided above the feeding board, and the pressure plate extends downward at an angle close to the feeding edge. When the material belt passes through the feeding board, it enters the limiting groove, which limits the front and rear movement of the material belt, improving the positioning accuracy when the back cover paper separates from the material belt. The bottom end of the pressure plate limits the top side of the material belt, reducing the arching of the material belt when it folds on the feeding edge side, thus making it easier for the separating paper to separate and detach when passing the feeding edge.

[0009] As a further improvement to the above technical solution, the top surface of the feeding paperboard is provided with adjusting grooves on both the front and rear sides of the limiting through groove. Both adjusting grooves are interconnected with the limiting through groove, and each adjusting groove contains an adjusting block. Each adjusting block has a slotted hole extending in the front-rear direction, and two screws are inserted into each slot and connected to their respective adjusting grooves. Adjusting blocks are installed on both the front and rear sides of the adjusting groove, and two screws respectively press and position the two adjusting blocks within the adjusting groove. Depending on the width of the material strip, the screws can be loosened first to adjust the position of the two adjusting blocks, thereby adjusting the limiting position of the material strip on both the front and rear sides, allowing the material strip to move along the center line of the limiting through groove. After adjustment, the two screws are then tightened back into the two adjusting grooves.

[0010] As a further improvement to the above technical solution, the unwinding section includes a vertical plate, a support plate, an unwinding drum, a hysteresis brake, a pressure arm, a belt guide pulley, a support rod, and a first tension spring. The support plate is located beside the vertical plate, and the support rod is connected to the vertical plate. The unwinding drum and the hysteresis brake are both connected to the support plate, and the hysteresis brake is throttle-connected to the unwinding drum. One end of the pressure arm is rotatably connected to the support plate, and the belt guide pulley is rotatably connected to the other end of the pressure arm. One end of the first tension spring is connected to the vertical plate, and the other end of the first tension spring is connected to the pressure arm. The first tension spring has a tendency to pull the pressure arm downward and cause the belt guide pulley to move closer to the support rod. The wound tape is loaded onto the unwinding drum. The tape is released from top to bottom, passing over the pulley and leading to the top side of the support rod. Then it passes the paper feeder, folds at the paper feeder edge, and is introduced into the take-up section. In use, the take-up section rewinds, pulling the tape out from the unwinding drum. As the unwinding drum rotates, the hysteresis brake provides tension to the tape released from the unwinding drum. The first tension spring causes the pulley on the pressure arm to exert elastic pressure on the tape, which can press down on the tape that has passed over the pulley, thereby providing secondary tension. After passing over the pulley, the tape passes the top side of the support rod, where the support rod supports and positions the tape, allowing it to enter the limiting slot straight. This allows the tape to be released smoothly, which is beneficial for the efficient separation and removal of the back cover paper.

[0011] As a further improvement to the above technical solution, the winding section includes a guide shaft, a drive motor, a take-up shaft, a take-up roller, a transmission belt, a tension shaft, a pressure roller, and a second tension spring. The drive motor is connected to the upright plate and drives the take-up roller. The guide shaft is connected to the upright plate. The take-up roller and the tension shaft are both rotatably connected to the upright plate. The take-up shaft is rotatably connected to the support plate. The tension shaft is located between the take-up roller and the take-up shaft. The take-up shaft, the tension shaft, and the take-up roller are connected by the transmission belt. Multiple positioning pins are arranged around the outer side of the take-up roller. The pressure roller is slidably connected to the upright plate in the vertical direction. The second tension spring is connected between the pressure roller and the upright plate and has a tendency to pull the pressure roller downward toward the tension shaft. After the material tape is folded out from the paper feeding edge, it passes around the guide shaft, then around the take-up roller, and passes between the pressure roller and the tensioning shaft. It is then wound and fixed onto the take-up shaft. During take-up, the drive motor drives the take-up roller to rotate, and the take-up roller drives the tensioning shaft and the take-up shaft to rotate simultaneously through the transmission belt. Under the tension of the second tension spring, the pressure roller presses the material tape tightly onto the take-up roller. This provides tension during the take-up of the material tape, achieving stable take-up. When the take-up roller rotates, the positioning pin on the outside of the take-up roller can be connected to the hole on the material tape. This ensures that the take-up roller drives the material tape to rotate synchronously, so that the material tape can move a set distance accurately to separate the back cover paper one by one.

[0012] As a further improvement to the above technical solution, a first transmission groove is arranged around the take-up reel, a second transmission groove is arranged around the tension shaft, and a third transmission groove is arranged around the take-up shaft. The outer diameter of the first transmission groove is larger than the outer diameter of the second transmission groove, and the outer diameter of the second transmission groove is larger than the outer diameter of the third transmission groove. The transmission belt is wound around the first, second, and third transmission grooves, and a take-up sleeve is sleeved on the take-up shaft. The end of the material belt is wound and fixed to the take-up sleeve. Since the outer diameters of the first, second, and third transmission grooves decrease one after another, when the transmission belt drives the take-up reel, tension shaft, and take-up shaft to rotate, the rotation speed of the take-up shaft, the rotation speed of the tension shaft, and the rotation speed of the take-up reel increase one after another. This can better ensure the tension of the material belt during winding. At the take-up shaft, the slippage between the take-up sleeve and the take-up shaft can be used to counteract the excessive speed of the take-up shaft, ensuring accurate feeding and winding of the material belt.

[0013] As a further improvement to the above technical solution, a grating disk is connected to the take-up reel, and a notch is formed on the side of the grating disk. A photoelectric sensor is connected to the upright plate, and the photoelectric sensor is directly opposite the grating disk. When the take-up reel rotates, it drives the grating disk to rotate, so that the notch on the grating disk can be sensed and detected when it passes through the photoelectric sensor, thereby providing the origin positioning function for the take-up reel. Origin positioning can be achieved when the take-up reel is first started rotating.

[0014] As a further improvement to the above technical solution, the transfer unit includes a base, a translation drive, and a second lifting drive. The translation drive is connected to the base, and the second lifting drive is connected to the translation drive. The translation drive can drive the second lifting drive to move translationally above the paper support area and above one of the positioning seats. The suction nozzle is connected to the second lifting drive, which can drive the suction nozzle to move up and down. The translation drive and the second lifting drive can respectively provide driving force to the suction nozzle in the left-right and up-down directions, thereby driving the suction nozzle to move translationally above the paper support area, and then move down close to the paper support area to use the suction nozzle to pick up the back cover paper. After picking up, the suction nozzle is driven up again, and then translationally moved above one of the positioning seats, and then moved down to stick the back cover paper to the motor.

[0015] As a further improvement to the above technical solution, the material transfer mechanism includes a cam divider, which is driven and connected to the turntable. The cam divider can drive the turntable to rotate intermittently, thereby realizing the cyclic loading of materials onto multiple positioning seats, pasting of back cover paper, and then unloading. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of the present invention, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0017] Figure 1 This is an overall perspective view of the present invention;

[0018] Figure 2 This is a perspective view of the unwinding section of the present invention;

[0019] Figure 3 This is a perspective view of the winding section and the paper feeding section of the present invention;

[0020] Figure 4 This is a perspective view of the transfer section of the present invention.

[0021] In the attached diagram: 1-Turntable, 11-Positioning seat, 21-Paper feeder, 211-Bracket, 212-Blade, 213-Limiting slot, 214-Pressure plate, 215-Adjusting block, 2151-Oval hole, 221-Upright plate, 222-Support plate, 223-Unwinding drum, 224-Hysteresis brake, 225-Pressure arm, 226-Belt pulley, 227-Support rod, 228-First tension spring, 231-Guide shaft, 232-Belt take-up. Shaft, 2321-Take-up sleeve, 233-Take-up roller, 2331-Positioning pin, 234-Transmission belt, 235-Tension shaft, 236-Pressure roller, 237-Second tension spring, 241-First lifting drive, 242-Guide seat, 243-Positioning column, 31-Transfer part, 32-Suction nozzle, 33-Base, 34-Translation drive, 35-Second lifting drive, 41-Raster disk, 411-Notch, 42-Photoelectric sensor. Detailed Implementation

[0022] The following will clearly and completely describe the concept, specific structure, and technical effects of the present invention in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the scope of protection of the present invention. Furthermore, all connection relationships mentioned herein do not simply refer to direct connection of components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this invention can be combined interactively without contradicting each other.

[0023] Reference Figure 1 and Figure 3A motor back cover paper pasting machine includes: a material transfer mechanism, which includes a rotatable turntable 1, the rotation axis of the turntable 1 extending in the vertical direction, and a plurality of positioning seats 11 arranged around the center of the turntable 1 on its top side, with positioning grooves provided on the top side of the positioning seats 11 to facilitate the installation and positioning of the motor; and a paper feeding mechanism, which includes a paper feeding plate 21, an unwinding section, and a rewinding section, one side of the paper feeding plate 21 being a paper feeding edge, the unwinding section being able to unwind the paper towards the paper feeding edge, and the rewinding section being able to unwind the paper from the paper feeding edge. The paper feeding edge is wound up, and a bracket 211 is connected to the paper feeding plate 21. At least two blades 212 are connected at intervals along the horizontal direction on the bracket 211. The top edges of the at least two blades 212 form a paper holding area, which is spaced apart on one side of the paper feeding edge. The paper pasting mechanism includes a transfer part 31 and a suction nozzle 32. The suction nozzle 32 is connected to the transfer part 31, and the transfer part 31 can drive the suction nozzle 32 to move between the paper holding area and a positioning seat 11.

[0024] In this motor back cover paper pasting machine, the motor to be pasted is placed on the positioning seat 11 of the turntable 1. The turntable 1 rotates the positioning seat 11 containing the motor to the side of the paper feeding mechanism. The unwinding section of the paper feeding mechanism can hold the wound material tape, and the unwinding section can release the material tape. The material tape is led out to the feeding board 21, passes the feeding edge, and then folds towards the winding section. When the material tape passes the feeding edge, the back cover paper on the material tape can be separated due to the bending. One side of the separated back cover paper first rests on the paper support area formed by at least two blades 212. As the conveyor belt moves, the back cover paper continuously separates from the conveyor belt. The winding section then rewinds the conveyor belt after the back cover paper has come off. The transfer section 31 moves the suction nozzle 32 to the paper support area to pick up the back cover paper. Then, it moves the suction nozzle 32 to the positioning seat 11 at the set position to stick the back cover paper to the motor on the positioning seat 11, thus completing the seal. In this way, the back cover paper can be automatically pasted mechanically, which improves the stability and efficiency of pasting the back cover paper, helps to reduce the defect rate of motor production, and improves production efficiency.

[0025] To improve the positioning accuracy of the back cover paper being pasted onto the motor, positioning is performed before the suction nozzle 32 picks up the back cover paper. Specifically, the paper feeding mechanism also includes a first lifting drive 241, a guide seat 242, and a positioning post 243. The first lifting drive 241 has a fixed end and a movable end that can move in the vertical direction on the fixed end. The guide seat 242 is connected to the fixed end and has a guide channel extending in the vertical direction. The positioning post 243 is located below the gap between the paper feeding edge and the paper holding area. The bottom end of the positioning post 243 extends into the guide channel and is connected to the movable end. The top outer diameter of the positioning post 243 gradually decreases from bottom to top. The bottom surface of the suction nozzle 32 is provided with a clearance hole, and multiple negative pressure suction holes are provided around the clearance hole on the bottom surface of the suction nozzle 32. When the back cover paper on the conveyor belt comes off, one side of the back cover paper rests on the paper support area, while the other side is in a state of just separating from the conveyor belt. At this time, the middle of the back cover paper is located between the paper support area and the paper feeding edge. The movable end of the first lifting drive 241 drives the guide seat 242 and the positioning post 243 to move upward. The guide seat 242 improves the stability of the positioning post 243 when it moves up and down. The top of the positioning post 243 gradually narrows, which makes it easy for the positioning post 243 to pass into the hole in the middle of the back cover paper and position the back cover paper. At the same time, the back cover paper is moved upward to the bottom surface of the suction nozzle 32. The suction nozzle 32 is connected to an external negative pressure source, which can generate negative pressure in the negative pressure suction hole on the bottom surface of the suction nozzle 32, thereby adsorbing the back cover paper. The avoidance hole on the bottom surface of the suction nozzle 32 can avoid the positioning post 243. This can improve the accuracy of the suction nozzle 32 when adsorbing the back cover paper, thereby further improving the positioning accuracy of the suction nozzle 32 in sticking the back cover paper to the motor, which is conducive to improving production quality.

[0026] The back cover paper is connected to the feed belt. When it is necessary to separate the back cover paper, the feed belt is bent, which allows the back cover paper to gradually separate and come off. In the above embodiment, the top side of the blade 212 is used to block and support the back cover paper, making it easier for the back cover paper to come off the feed belt. The contact area between the blade 212 and the back cover paper is small, making it less likely for the back cover paper to stick to the blade 212. In order to further improve the separation effect of the back cover paper, in this embodiment, the top surface of the feeding plate 21 is provided with a limiting groove 213 extending in the left and right direction. The feeding edge is located on the side of the limiting groove 213 facing the paper support area. The side of the feeding plate 21 facing the paper support area extends downward at an angle away from the paper support area. A pressure plate 214 is provided above the feeding plate 21. The pressure plate 214 can be fixed on the upright plate 221. The pressure plate 214 extends downward at an angle close to the feeding edge. When the feed strip passes through the paper feeding plate 21, it enters the limiting groove 213. The limiting groove 213 limits the front and rear of the feed strip, which can improve the positioning accuracy when the back cover paper separates from the feed strip. The bottom end of the pressure plate 214 can limit the top side of the feed strip, reducing the arching of the feed strip when it folds on the paper feeding side, thus making it easier for the separation paper to separate and come out when it passes the paper feeding side.

[0027] In practical applications, the width of different specifications of material strips will vary. In order to further limit the material strips fed to the paper feeding edge folding edge, in this embodiment, the top surface of the paper feeding board 21 is provided with adjustment grooves on both the front and rear sides of the limiting through groove 213. Both adjustment grooves are connected to the limiting through groove 213. Adjustment blocks 215 are provided in both adjustment grooves. Each of the two adjustment blocks 215 has a waist-shaped hole 2151 extending in the front and rear direction. Two screws are inserted into each of the two waist-shaped holes 2151 and connected to the adjustment groove. Adjusting blocks 215 are installed on both the front and rear sides of the adjusting groove. Two screws are used to press and position the two adjusting blocks 215 in the adjusting groove. Depending on the width of the material strip, the screws can be loosened first to adjust the position of the two adjusting blocks 215, thereby adjusting the limit on the position of the front and rear sides of the material strip, so that the material strip moves along the center line of the limiting through groove 213. After the adjustment is completed, the two screws are tightened again to fix the two adjusting blocks 215 in the two adjusting grooves.

[0028] The unwinding section is mainly used to release the wound strip with the back cover paper, such as... Figure 2As shown, in this embodiment, the unwinding section includes a vertical plate 221, a support plate 222, an unwinding drum 223, a hysteresis brake 224, a pressure arm 225, a pulley 226, a support rod 227, and a first tension spring 228. The support plate 222 is located beside the vertical plate 221, and the support rod 227 is connected to the vertical plate 221. The unwinding drum 223 and the hysteresis brake 224 are both connected to the support plate 222. The hysteresis brake 224 is drive-connected to the unwinding drum 223. A rotating shaft is connected to the unwinding drum 223 and rotatably connected to the support plate 222. The hysteresis brake 224 is driven by the rotating shaft on the unwinding drum 223. The shafts are connected by belt drive. One end of the pressure arm 225 is rotatably connected to the support plate 222, and the belt pulley 226 is rotatably connected to the other end of the pressure arm 225. One end of the first tension spring 228 is connected to the upright plate 221, and the other end of the first tension spring 228 is connected to the pressure arm 225. The first tension spring 228 has the tendency to pull the pressure arm 225 downward and make the belt pulley 226 closer to the support rod 227. In actual application, the belt pulley 226 and the support rod 227 are misaligned in the vertical direction, and the support rod 227 is positioned between the belt pulley 226 and the paper feeder 21. The wound tape is loaded onto the unwinding drum 223. The tape is released from top to bottom, passing over the pulley 226 and leading to the top side of the support rod 227. Then it passes the paper feed 21, folds at the paper feed edge, and is introduced into the take-up section. In use, the take-up section rewinds, pulling the tape out from the unwinding drum 223. When the unwinding drum 223 rotates, the hysteresis brake 224 provides tension to the tape released from the unwinding drum 223. The first tension spring 228 causes the pulley 226 on the pressure arm 225 to exert elastic pressure on the tape, which can press down on the tape that has passed over it, thereby providing secondary tension. After passing over the pulley 226, the tape passes over the top side of the support rod 227, where the support rod 227 supports and positions the tape, allowing it to enter the limiting groove 213 straight. This allows the tape to be released smoothly, which is beneficial for the efficient separation and removal of the back cover paper.

[0029] The winding section is mainly used to wind up the strip after the back cover paper has been separated. In this embodiment, the winding section includes a guide shaft 231, a drive motor, a winding shaft 232, a winding wheel 233, a transmission belt 234, a tension shaft 235, a pressure roller 236, and a second tension spring 237. The drive motor is connected to the upright plate 221 and drives the winding wheel 233. The guide shaft 231 is connected to the upright plate 221. In practical applications, two guide shafts 231 can be provided, with the two guide shafts 231 located on the left and right sides of the winding wheel 233, respectively. The winding wheel 233 and the tension shaft 235 are both rotatably connected to the upright plate 221. On the upright plate 221, the take-up shaft 232 is rotatably connected to the support plate 222. The tension shaft 235 is located between the take-up roller 233 and the take-up shaft 232. The take-up shaft 232, the tension shaft 235 and the take-up roller 233 are connected by the transmission belt 234. A plurality of positioning pins 2331 are arranged around the outer side of the take-up roller 233. The pressure roller 236 is slidably connected to the upright plate 221 in the vertical direction. The second tension spring 237 is connected between the pressure roller 236 and the upright plate 221. The second tension spring 237 has the tendency to pull the pressure roller 236 downward toward the tension shaft 235. After the tape is folded and led out from the paper feeding edge, it first passes around the bottom side of the guide shaft 231 located on the left, then is fed to the guide shaft 231 located on the right and passes around from top to bottom. Next, it is fed to the top side of the take-up roller 233, passes around the take-up roller 233, and then passes between the pressure roller 236 and the tension shaft 235. Finally, it is wound and fixed onto the take-up shaft 232. During winding, the drive motor drives the take-up roller 233 to rotate, and the take-up roller 233 drives the tension shaft 235 and the take-up shaft 232 to rotate simultaneously through the transmission belt 234. Under the tension of the second tension spring 237, the pressure roller 236 presses the tape tightly onto the take-up roller 233. This provides tension during tape winding, enabling stable winding. When the winding wheel 233 rotates, the positioning pins 2331 on the outer side of the winding wheel 233 can be connected to the holes on the tape. This ensures that the winding wheel 233 drives the tape to rotate synchronously, allowing the tape to move a set distance precisely to separate the back cover paper one by one. In practical applications, multiple positioning pins 2331 arranged in a circle on the winding wheel 233 are considered as a group. Two groups of positioning pins 2331 are spaced apart along the front-back direction on the winding wheel 233, which are matched with the holes spaced apart along the front-back direction on the tape.

[0030] In the above embodiment, the take-up roller 233, tension shaft 235, and take-up shaft 232 are connected by a transmission belt 234, enabling synchronous rotation. At this time, pressure is applied to the material belt by the pressure shaft to provide tension during the winding of the material belt. In this embodiment, however, tension can be provided by the differential rotation between the take-up roller 233, tension shaft 235, and take-up shaft 232, and the slippage during the winding of the material belt is used to offset the effect of the differential speed. Specifically, the take-up roller 233 is provided with a first transmission groove, the tension shaft 235 is provided with a second transmission groove, and the take-up shaft 232 is provided with a third transmission groove. The outer diameter of the first transmission groove is larger than the outer diameter of the second transmission groove, and the outer diameter of the second transmission groove is larger than the outer diameter of the third transmission groove. The transmission belt 234 is wound around the first, second, and third transmission grooves, and a take-up sleeve 2321 is sleeved on the take-up shaft 232. The end of the material strip is wound and fixed on the take-up sleeve 2321. As the outer diameters of the first transmission groove, the second transmission groove, and the third transmission groove decrease one by one, when the transmission belt 234 drives the take-up wheel 233, the tension shaft 235, and the take-up shaft 232 to rotate, the speed of the take-up shaft 232, the speed of the tension shaft 235, and the speed of the take-up wheel 233 increase one by one. This can better ensure the tension of the material strip during take-up. At the take-up shaft 232, the slippage between the take-up sleeve 2321 and the take-up shaft 232 can be used to counteract the excessive speed of the take-up shaft 232, ensuring accurate feeding and take-up of the material strip.

[0031] In practical applications, each time the drive motor rotates the take-up reel 233 by a certain angle, it can move the material strip a certain distance, thereby separating the back cover paper one by one. To improve the accuracy of the rotation angle of the take-up reel 233, in this embodiment, a grating disk 41 is connected to the take-up reel 233. A notch 411 is opened on the side of the grating disk 41. A photoelectric sensor 42 is connected to the upright plate 221, and the photoelectric sensor 42 is directly opposite the grating disk 41. When the take-up reel 233 rotates, it can drive the grating disk 41 to rotate. When the notch 411 on the grating disk 41 passes through the photoelectric sensor 42, it can be sensed and detected, thereby providing the origin positioning function for the take-up reel 233. Origin positioning can be achieved when the take-up reel 233 is started to rotate for the first time.

[0032] The transfer unit 31 is mainly used to provide the driving force for moving the suction nozzle 32, such as... Figure 4As shown, in this embodiment, the transfer unit 31 includes a base 33, a translation drive 34, and a second lifting drive 35. The translation drive 34 is connected to the base 33, and the second lifting drive 35 is connected to the translation drive 34. The translation drive 34 can drive the second lifting drive 35 to move horizontally above the paper holding area and above a positioning seat 11. The suction nozzle 32 is connected to the second lifting drive 35, and the second lifting drive 35 can drive the suction nozzle 32 to move up and down. The translation drive 34 and the second lifting drive 35 can respectively provide driving force to the suction nozzle 32 in the left-right and up-down directions, thereby driving the suction nozzle 32 to move horizontally above the paper holding area, and then move down close to the paper holding area to use the suction nozzle 32 to absorb the back cover paper. After absorption, the suction nozzle 32 is driven to move up again, and then horizontally above a positioning seat 11, and then move down to stick the back cover paper to the motor.

[0033] In practical applications, the translation drive 34, the first lifting drive 241, and the second lifting drive 35 are all used to provide the driving force for reciprocating motion in a straight line. They have various structural forms, such as pneumatic push rods, electric push rods, or hydraulic push rods.

[0034] As a further embodiment of the material transfer mechanism, the material transfer mechanism includes a cam divider, which is driven and connected to the turntable 1. The cam divider can drive the turntable 1 to rotate intermittently, thereby realizing the cyclic loading of multiple positioning seats 11, pasting of back cover paper, and then unloading.

[0035] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A motor rear cover paper pasting machine, characterized in that: include: The material transfer mechanism includes a rotatable turntable (1) with the rotation axis of the turntable (1) extending in the vertical direction, and a plurality of positioning seats (11) arranged around the center of the turntable (1) on the top side of the turntable (1). The paper feeding mechanism includes a paper feeding board (21), an unwinding section and a rewinding section. One side of the paper feeding board (21) is a paper feeding edge. The unwinding section can unwind the paper to the paper feeding edge, and the rewinding section can rewind the paper from the paper feeding edge. A bracket (211) is connected to the paper feeding board (21). At least two blades (212) are connected at intervals along the horizontal direction on the bracket (211). The top edges of the at least two blades (212) form paper holding areas, which are spaced apart on one side of the paper feeding edge. The sticker mechanism includes a transfer section (31) and a suction nozzle (32), the suction nozzle (32) being connected to the transfer section (31), the transfer section (31) being able to move the suction nozzle (32) between the paper holding area and a positioning seat (11); The paper feeding mechanism further includes a first lifting drive (241), a guide seat (242), and a positioning post (243). The first lifting drive (241) has a fixed end and a movable end that can move in the vertical direction on the fixed end. The guide seat (242) is connected to the fixed end. The guide seat (242) is provided with a guide channel that extends in the vertical direction. The positioning post (243) is located below the gap between the paper feeding edge and the paper holding area. The bottom end of the positioning post (243) extends into the guide channel and is connected to the movable end. The top outer diameter of the positioning post (243) gradually decreases from bottom to top. The bottom surface of the suction nozzle (32) is provided with a clearance hole. The bottom surface of the suction nozzle (32) is provided with a plurality of negative pressure suction holes around the clearance hole.

2. The motor rear cover paper pasting machine according to claim 1, characterized in that: The top surface of the feeding board (21) is provided with a limiting groove (213) extending in the left and right direction. The feeding edge is located on the side of the limiting groove (213) facing the paper support area. The side of the feeding board (21) facing the paper support area extends downward at an angle away from the paper support area. A pressure plate (214) is provided above the feeding board (21). The pressure plate (214) extends downward at an angle close to the feeding edge.

3. A motor rear cover paper pasting machine according to claim 2, characterized in that: The top surface of the feeding plate (21) is provided with adjustment grooves on both the front and rear sides of the limiting through groove (213). Both adjustment grooves are connected to the limiting through groove (213). Both adjustment grooves are provided with adjustment blocks (215). Both adjustment blocks (215) are provided with waist-shaped holes (2151) extending in the front and rear direction. Two screws are inserted into the two waist-shaped holes (2151) and connected to the adjustment groove.

4. The motor rear cover paper pasting machine according to claim 1, characterized in that: The unwinding section includes a vertical plate (221), a support plate (222), an unwinding drum (223), a hysteresis brake (224), a pressure arm (225), a pulley (226), a support rod (227), and a first tension spring (228). The support plate (222) is located beside the vertical plate (221), and the support rod (227) is connected to the vertical plate (221). The unwinding drum (223) and the hysteresis brake (224) are both connected to the support plate (222). The hysteresis brake (224) and the unwinding drum (225) are connected to the support plate (226). The drum (223) is connected to the drive. One end of the pressure arm (225) is rotatably connected to the support plate (222). The pulley (226) is rotatably connected to the other end of the pressure arm (225). One end of the first tension spring (228) is connected to the upright plate (221). The other end of the first tension spring (228) is connected to the pressure arm (225). The first tension spring (228) has the tendency to pull the pressure arm (225) down and make the pulley (226) closer to the support rod (227).

5. A motor rear cover paper pasting machine according to claim 4, characterized in that: The take-up section includes a guide shaft (231), a drive motor, a take-up shaft (232), a take-up roller (233), a transmission belt (234), a tension shaft (235), a pressure roller (236), and a second tension spring (237). The drive motor is connected to the upright plate (221) and drives the take-up roller (233). The guide shaft (231) is connected to the upright plate (221). The take-up roller (233) and the tension shaft (235) are both rotatably connected to the upright plate (221). The take-up shaft (232) is rotatably connected to the support plate (222). The tension shaft (235)... Located between the take-up reel (233) and the take-up shaft (232), the take-up shaft (232), the tension shaft (235), and the take-up reel (233) are connected by the transmission belt (234). A plurality of positioning pins (2331) are arranged around the outer side of the take-up reel (233). The pressure roller (236) is slidably connected to the upright plate (221) in the vertical direction. The second tension spring (237) is connected between the pressure roller (236) and the upright plate (221). The second tension spring (237) has the tendency to pull the pressure roller (236) downward toward the tension shaft (235).

6. A motor rear cover paper pasting machine according to claim 5, characterized in that: The take-up reel (233) is provided with a first transmission groove, the tensioning shaft (235) is provided with a second transmission groove, and the take-up shaft (232) is provided with a third transmission groove. The outer diameter of the first transmission groove is larger than the outer diameter of the second transmission groove, the outer diameter of the second transmission groove is larger than the outer diameter of the third transmission groove, the transmission belt (234) is wrapped around the first transmission groove, the second transmission groove and the third transmission groove, and the take-up shaft (232) is fitted with a take-up sleeve (2321).

7. A motor rear cover paper pasting machine according to claim 5, characterized in that: A grating disk (41) is connected to the winding reel (233), and a notch (411) is opened on the side of the grating disk (41). A photoelectric sensor (42) is connected to the upright plate (221), and the photoelectric sensor (42) is directly opposite the grating disk (41).

8. A motor rear cover paper pasting machine according to claim 1, characterized in that: The transfer unit (31) includes a base (33), a translation drive (34), and a second lifting drive (35). The translation drive (34) is connected to the base (33), and the second lifting drive (35) is connected to the translation drive (34). The translation drive (34) can drive the second lifting drive (35) to move horizontally above the paper holding area and above a positioning seat (11). The suction nozzle (32) is connected to the second lifting drive (35), and the second lifting drive (35) can drive the suction nozzle (32) to move up and down.

9. A motor rear cover paper pasting machine according to claim 1, characterized in that: The material transfer mechanism includes a cam divider, which is driven and connected to the turntable (1).

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