Lithium battery rolling mechanism and precise pressure control system thereof

Abstract

The invention relates to the technical field of lithium battery rolling equipment, in particular to a lithium battery rolling mechanism and a precision pressure control system thereof.The lithium battery rolling mechanism comprises an installation frame, a pressure maintaining air cylinder, a limiting stopper and a rolling assembly, the installation frame is installed on a conveying belt mechanism, and the output end of the pressure maintaining air cylinder on the installation frame is connected with the rolling assembly; the rolling assembly is arranged towards the conveying belt mechanism, the side portion of the rolling assembly is in contact fit with the top of the limiting stopper, the limiting stopper is in threaded connection with the mounting frame, the limiting stopper is particularly cylindrical, the limiting stopper can provide support for the rolling assembly when the device does not work, and then the output end of the pressure maintaining air cylinder is supported; the situation that the output end of the pressure maintaining air cylinder droops under the action of gravity, so that residual gas in the pressure maintaining air cylinder applies pressure to the interior of the pressure maintaining air cylinder is avoided, and then part damage caused by too high air pressure in the pressure maintaining air cylinder when the pressure maintaining air cylinder does not work can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery rolling equipment, and in particular to a lithium battery rolling mechanism and a precise pressure control system thereof. Background Art

[0002] A lithium battery pack, or "battery group" or "battery pack", is a battery system that combines multiple single lithium batteries (single batteries) in series, parallel or mixed connection to form a specific voltage, capacity and function. In the production process of lithium batteries, it is often necessary to paste specified labels on the pack to display the battery parameters.

[0003] However, the prior art still has shortcomings. For example, patent number: CN201721707781.3 is a labeling machine for lithium battery production, which includes a conveyor belt, a placement groove, a box body and a label roller. The conveying surface of the conveyor belt is provided with a placement groove; the box body is placed above the conveyor belt, and two label rollers are installed in the box body. Two receiving rollers are installed below the two label rollers, and a sponge wheel is arranged between the two receiving rollers. The moving rod connected to the sponge wheel is connected to the piston end of the moving cylinder installed in the cavity of the inner wall of the box body. A lifting cylinder is installed on the top of the box body, and a cutting knife connected to the piston end of the lifting cylinder is suspended above between the two receiving rollers. The device lacks a limiting mechanism. Therefore, when performing the label compaction operation, the lifting cylinder may fail, which may easily lead to uncontrolled downward pressure, thereby causing excessive pressure on the battery pack and causing damage to the battery pack. Summary of the invention

[0004] The present invention provides a lithium battery rolling mechanism and a precise pressure control system thereof, which are used to solve the problem raised in the background technology.

[0005] In order to achieve the above-mentioned invention objectives, the present invention provides the following technical solutions: a lithium battery rolling mechanism, comprising: a mounting frame, a pressure-maintaining cylinder, a limiter and a rolling assembly, the mounting frame is installed on the conveyor belt mechanism, the output end of the pressure-maintaining cylinder on the mounting frame is connected to the rolling assembly, the rolling assembly is arranged toward the conveyor belt mechanism, the side of the rolling assembly is in contact with the top of the limiter, the limiter is threadedly connected to the mounting frame, and the limiter is specifically cylindrical.

[0006] Preferably, the rolling assembly includes: a pressure sensor, a connecting plate and a rolling device, the output end of the pressure-maintaining cylinder is connected to the top of the connecting plate through the pressure sensor, the side of the connecting plate is in contact with the top of the limiter, and the bottom of the connecting plate is connected to the rolling device.

[0007] Preferably, the connecting plate is slidably connected to the mounting frame.

[0008] Preferably, the rolling device includes: a crossbeam, a longitudinal beam and a rotating shaft, the crossbeam is connected to the bottom of the connecting plate, the top of a longitudinal beam is connected to each side of the crossbeam, each longitudinal beam is rotatably connected to one end of the rotating shaft, and the pressure wheel on the rotating shaft is arranged toward the conveyor belt mechanism.

[0009] Preferably, the pressing wheel is made of soft silicone.

[0010] Preferably, it also includes: an air supply mechanism; the air supply mechanism includes: an air compressor, a pipeline and a second pipeline, the air compressor is connected to the mounting frame, and the pressure-maintaining cylinder is connected to the air compressor through the pipeline and the second pipeline.

[0011] Preferably, the first pipeline is connected to a solenoid valve, the second pipeline is connected to a solenoid valve 2, and both the solenoid valve and the solenoid valve 2 are two-position three-way solenoid valves.

[0012] Preferably, a mounting groove is opened at the bottom of the cross beam, the end of the mounting groove is connected to a through groove on the end face of a longitudinal beam, a guide bar is provided on each inner wall of the mounting groove, the inner wall of the mounting groove is rotatably connected to the end of a screw, the screw is connected to the output end of the motor, the motor is connected to the inner wall of the mounting groove, a cleaning mechanism is connected to the screw, the cleaning mechanism is frictionally matched with the pressure wheel of the rotating shaft, and the cleaning mechanism is rollingly frictionally matched with the guide bar.

[0013] Preferably, the cleaning mechanism includes: a mounting tube and a screw block, two screw blocks are threadedly connected to the screw rod, the screw block is connected to the mounting tube, the guide mechanism at the top of the mounting tube is rollingly frictionally engaged with the guide bar, the inner diameter of the mounting tube is larger than the diameter of the pressure wheel, and the mounting tube and the pressure wheel are coaxially arranged.

[0014] Preferably, a lithium battery rolling mechanism precision pressure control system is used to control a lithium battery rolling mechanism described in any of the above items, including: a controller and a pressure gauge, a flow control solenoid valve is connected to each of the pipeline and the second pipeline, the flow control solenoid valve, the solenoid valve, the second solenoid valve, the air compressor, the conveyor belt mechanism, the pressure sensor and the pressure gauge are all electrically connected to the controller, the controller is fixed on the mounting frame, and the pressure gauge is installed on the controller.

[0015] The beneficial effects of the present invention are as follows: By setting a limiter, the rolling assembly can be supported when the device is not working, thereby supporting the output end of the pressure-maintaining cylinder, preventing the output end of the pressure-maintaining cylinder from sagging under the action of gravity so that the residual gas inside the pressure-maintaining cylinder exerts pressure on the inside of the pressure-maintaining cylinder, thereby avoiding damage to components caused by excessive air pressure inside the pressure-maintaining cylinder when the pressure-maintaining cylinder is not working. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a schematic diagram of the installation position of the pipeline and the second pipeline of the present invention; Figure 3 It is a schematic diagram of the connection relationship between the installation groove and the through groove of the present invention; Figure 4 It is a schematic diagram of the connection relationship between the installation pipe and the pump casing of the present invention; Figure 5 It is a cross-sectional view of the installation pipe of the present invention; Figure 6 It is a schematic diagram of the connection relationship between the retaining ring 2 and the spring of the present invention; Figure 7 It is a schematic diagram of the relative positions of the rotating pipe and the second rotating pipe of the present invention; Figure 8 It is a schematic diagram of the relative positions of the waist-shaped flow guide hole and the pressure relief hole of the present invention; Fig. 9 It is a schematic diagram of the installation position of the intake pipe and the exhaust pipe of the present invention.

[0017] Among them: mounting frame 1, pressure-maintaining cylinder 2, limiter 3, rolling assembly 4, pressure sensor 5, connecting plate 6, crossbeam 7, longitudinal beam 8, rotating shaft 9, pipeline 10, pipeline II 11, mounting groove 12, through groove 13, guide strip 14, screw 15, motor 16, mounting tube 17, screw block 18, retaining ring 19, friction ring 20, retaining ring II 21, spring 22, controller 23, pressure gauge 24, pump casing 25, friction wheel 26, liquid inlet pipe 27, liquid outlet pipe 28, waist-shaped flow guide hole 29, connecting pipe 30, retaining ring III 31, pressure relief hole 32, rotating tube 34, rotating tube II 35, spiral line 36, blade II 37, blade 38, rotating wheel 39, discharge pipe 40, pressure wheel 45, rubber ring 46, air inlet pipe 47, exhaust pipe 48. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0019] Example 1: Reference Figure 1-Figure 9 A lithium battery rolling mechanism comprises: a mounting frame 1, a pressure-maintaining cylinder 2, a limiter 3 and a rolling assembly 4. The mounting frame 1 is mounted on a conveyor belt mechanism. The output end of the pressure-maintaining cylinder 2 on the mounting frame 1 is connected to the rolling assembly 4. The rolling assembly 4 is arranged toward the conveyor belt mechanism. The side of the rolling assembly 4 contacts and cooperates with the top of the limiter 3. The limiter 3 is threadedly connected to the mounting frame 1. The limiter 3 is specifically cylindrical.

[0020] The principles and beneficial effects of the above scheme are: Before the device starts working, the top of the adjustable stopper 3 is in contact with the side of the rolling assembly 4, so the stopper 3 can apply an upward thrust to the rolling assembly 4, and limit the rolling assembly 4 before working, so the stopper 3 can prevent the output end of the pressure-maintaining cylinder 2 from completely sagging, thereby preventing the pressure generated by the residual gas inside it from exerting pressure on the inside of the pressure-maintaining cylinder 2 for a long time and causing damage to it, and at the same time, it can also prevent the output end of the pressure-maintaining cylinder 2 from suddenly falling when not in use. The conveyor belt mechanism continuously transports multiple battery packs. When the tooling drives the battery pack to move to the bottom of the mounting frame 1, the stopper 3 is threadedly connected to the mounting frame 1, so the stopper 3 can be rotated to reserve space for the rolling assembly 4 to move. The reserved moving space allows the rolling assembly 4 to contact the top surface of the battery pack and apply sufficient bonding pressure to the label on the surface of the battery pack, while avoiding damage to the battery pack due to excessive pressure. The movement of the conveyor belt mechanism drives the continuous movement of multiple battery packs, thereby implementing continuous bonding of the labels. After the device finishes gluing the label, the pressure-maintaining cylinder drives the rolling assembly 4 to move upward. When it is driven to the initial position by the pressure-maintaining cylinder 2, the stopper 3 is rotated in the opposite direction again so that its top supports the side of the rolling assembly 4 again. By setting the limiter 3, when the device is not working, the rolling assembly 4 can be supported, thereby supporting the output end of the pressure-maintaining cylinder 2, so as to prevent the output end of the pressure-maintaining cylinder from sagging under the action of gravity so that the residual gas inside the pressure-maintaining cylinder 2 exerts pressure on the inside of the pressure-maintaining cylinder 2, thereby preventing the pressure-maintaining cylinder 2 from being damaged due to excessive internal air pressure when the pressure-maintaining cylinder 2 is not working; At the same time, the height of the limiter 3 can be adjusted according to the height of the top surface of the battery pack, thereby ensuring that the pressure applied by the rolling assembly 4 on the top surface of the battery pack during operation can meet the pressure of label bonding without causing damage to the battery pack.

[0021] Example 2: Reference Figure 1-Figure 9 The rolling assembly 4 includes: a pressure sensor 5, a connecting plate 6 and a rolling device. The output end of the pressure-maintaining cylinder 2 is connected to the top of the connecting plate 6 through the pressure sensor 5. The side of the connecting plate 6 is in contact with the top end of the limiter 3, and the bottom of the connecting plate 6 is connected to the rolling device.

[0022] The principles and beneficial effects of the above scheme are: A connecting plate 6 is provided in the component, and the top and bottom of the connecting plate 6 are connected to the pressure sensor 5 and the rolling device in turn, so as to facilitate the rapid disassembly and installation of the rolling device, and then to perform maintenance and repair thereof; at the same time, the setting of the pressure sensor 5 can provide real-time feedback to the operator whether the pressure applied by the rolling device on the top surface of the battery pack during operation exceeds the safe pressure for label bonding.

[0023] Example 3: Reference Figure 1-Figure 9 , the connecting plate 6 is slidably connected to the mounting frame 1.

[0024] The principles and beneficial effects of the above scheme are: When the connecting plate 6 rises or falls, it is slidably connected to the mounting frame 1, which can ensure the stability of the connecting plate 6 when it moves longitudinally, avoid vibration of the connecting plate 6 during movement, and further ensure that the rolling device can fully roll the label.

[0025] Example 4: Reference Figure 1-Figure 9 The rolling device includes: a crossbeam 7, a longitudinal beam 8 and a rotating shaft 9. The bottom of the connecting plate 6 is connected to the crossbeam 7, and the top of a longitudinal beam 8 is connected to each side of the crossbeam 7. Each longitudinal beam 8 is rotatably connected to one end of the rotating shaft of the rotating shaft 9, and the pressure wheel 45 on the rotating shaft 9 is arranged toward the conveyor belt mechanism.

[0026] The principles and beneficial effects of the above scheme are: When pasting the label, the relative rolling of the rotating shaft 9 and the label can implement the pasting operation and prevent the label from being displaced or torn due to excessive friction. Since the cross beam 7 is connected to the top of the longitudinal beam 8 and the longitudinal beam 8 is rotatably connected to the end of the rotating shaft 9, there is sufficient rotation space between the rotating shaft 9 and the cross beam 7. Therefore, when the pressure wheel 45 rolls, the dirt it contacts will not come into contact with the cross beam 7, thereby avoiding the pressure wheel 45 from being stuck when rotating.

[0027] Example 5: Reference Figure 1-Figure 9 The specific material of the pressing wheel 45 is soft silicone.

[0028] The principles and beneficial effects of the above scheme are: The soft silicone is selected as the component material of the pressing wheel 45, which can ensure that the label after rolling fits perfectly with the battery pack. At the same time, the pressing wheel 45 can absorb the impact of the battery pack on the cross beam 7 and the longitudinal beam 8, further avoiding vibration of the device during operation and extending the service life of the device.

[0029] Example 6: Reference Figure 1-Figure 9 , further comprising: an air supply mechanism; the air supply mechanism comprises: an air compressor, a pipeline 10 and a pipeline II 11, the air compressor is connected to the mounting frame 1, and the pressure-maintaining cylinder 2 is connected to the air compressor through the pipeline 10 and the pipeline II 11.

[0030] The pipeline 10 is connected with a solenoid valve, and the pipeline 11 is connected with a solenoid valve 2. Both the solenoid valve and the solenoid valve 2 are two-position three-way solenoid valves.

[0031] The principles and beneficial effects of the above scheme are: The air in the air compressor can be transported through pipe 10 and pipe 2 11. Since a solenoid valve is installed on pipe 10, solenoid valve 2 is connected to pipe 2 11, and both the solenoid valve and solenoid valve 2 are two-position three-way solenoid valves commonly used in the prior art, when it is necessary to move the output end of the pressure-maintaining cylinder 2 downward, the air compressor is started, solenoid valve 2 closes pipe 2 11 and releases the back pressure of the pressure-maintaining cylinder 2 at the same time, and the solenoid valve starts to output positive pressure to the pressure-maintaining cylinder 2 through pipe 10; when it is necessary to move the pressure-maintaining cylinder 2 upward, the air compressor is started again, the solenoid valve closes pipe 10 and releases the positive pressure of the pressure-maintaining cylinder 2 at the same time, and the solenoid valve 2 starts to output the back pressure to the pressure-maintaining cylinder 2 through pipe 2 11, which greatly reduces the complexity of the device during control and can improve the accuracy of the output end of the pressure-maintaining cylinder 2 during movement.

[0032] Example 7: Reference Figure 1-Figure 9 A mounting groove 12 is provided at the bottom of the cross beam 7, and the end of the mounting groove 12 is connected to a through groove 13 on the end surface of a longitudinal beam 8. A guide strip 14 is provided on each inner wall of the mounting groove 12. The inner wall of the mounting groove 12 is rotatably connected to the end of a screw 15, and the screw 15 is connected to the output end of a motor 16. The motor 16 is connected to the inner wall of the mounting groove 12. A cleaning mechanism is connected to the screw 15, and the cleaning mechanism is frictionally matched with the pressure wheel 45 of the rotating shaft 9, and the cleaning mechanism is rollingly frictionally matched with the guide strip 14.

[0033] The principles and beneficial effects of the above scheme are: After the pressing wheel 45 has been rolled for a certain period of time, dirt will adhere to it. At this time, the motor 16 in the mounting groove 12 drives the screw 15 to rotate. With the cooperation of the guide bar 14, the screw 15 drives the cleaning mechanism to move and clean the pressing wheel 45 of the rotating shaft 9 to remove dirt from the pressing wheel 45 on the rotating shaft 9, thereby preventing dirt from protruding on the pressing wheel 45 and ensuring that the side wall of the pressing wheel 45 can be completely in contact with the label during rolling to avoid missing adhesion, thereby further increasing the yield rate of the label after adhesion and further improving the cleanliness of the label after adhesion.

[0034] Example 8: Reference Figure 1-Figure 9 The cleaning mechanism includes: a mounting tube 17 and a screw block 18. Two screw blocks 18 are threadedly connected to the screw rod 15. The screw block 18 is connected to the mounting tube 17. The guide mechanism at the top of the mounting tube 17 is in rolling friction cooperation with the guide bar 14. The inner diameter of the mounting tube 17 is larger than the diameter of the pressure wheel 45. The mounting tube 17 and the pressure wheel 45 are coaxially arranged.

[0035] The cleaning mechanism also includes: a baffle ring 19, a friction ring 20, a baffle ring 21 and a spring 22. The friction ring 20 is slidably connected inside the baffle ring 19 at the end of the mounting tube 17. The end of the friction ring 20 placed inside the mounting tube 17 is connected to the baffle ring 21. One side of the baffle ring 21 is connected to the baffle ring 19 through a spring 22. The friction ring 20 is frictionally matched with the side wall of the pressure wheel 45 of the rotating shaft 9.

[0036] The principles and beneficial effects of the above scheme are: After the pressing wheel 45 has been working for a period of time, dirt adheres to it. At this time, the motor 16 drives the screw 15 to rotate. Under the rolling friction cooperation between the guide mechanism and the guide strip 14, the screw 15 drives the screw block 18 threadedly connected thereto to move, and the screw block 18 drives the mounting tube 17 to move from right to left. After the friction ring 20 moves from one side of the pressing wheel 45 to the pressing wheel 45, the friction ring 20 begins to frictionally cooperate with the pressing wheel 45. When there is dirt on the pressing wheel 45, the resistance to the friction ring 20 increases. At this time, the friction ring 20 moves toward the inside of the mounting tube 17, and at the same time, the end of the friction ring 20 placed outside the mounting tube 17 begins to clean the dirt on the pressing wheel 45. While the friction ring 20 cleans the dirt, the retaining ring 21 synchronously moves into the mounting tube 17 and stretches the spring 22. The more dirt there is or the larger the volume occupied by the dirt, the longer the distance the retaining ring 21 moves, and the longer the length of the spring 22 becomes. When the pressure wheel 45 is on After the dirt is cleaned, the friction between the friction ring 20 and the pressure wheel 45 is reduced. Under the elastic force of the spring 22, the retaining ring 21 and the friction ring 20 are synchronously moved to the outside of the mounting tube 17 to prepare for the cleaning of the next dirt. The spring 22 can provide a buffer for the friction ring 20 to prevent the friction ring 20 from tearing or wearing the side wall of the pressure wheel 45 when cleaning the dirt, and further prevent the rotating screw 15 and the screw block 18 from getting stuck, and avoid damage to the mechanism. The end of the friction ring 20 placed outside the mounting tube 17 can shovel up the dirt. During the movement of the friction ring 20, the dirt is moved to the side wall of the friction ring 20. Since the spring 22 is reset after the dirt is cleaned, the friction ring 20 can be vibrated while the spring 22 is reset, further realizing the rapid cleaning of the dirt and maintaining the cleanliness of the friction ring 20 itself, greatly improving the speed of device manufacturing while simplifying the complexity of the device; When the mounting tube 17 moves to the other side of the pressure wheel 45, the cleaning work is completed. Then the screw 15 drives the screw block 18 threadedly connected thereto to move in the opposite direction. At this time, if there is still dirt on the pressure wheel 45 that was not thoroughly cleaned the first time, the intersection of the retaining ring 21 and the friction ring 20 can be cleaned again. Since the structural strength of the remaining dirt after the first cleaning is reduced and the cleaning difficulty is reduced, the compression length of the spring 22 becomes smaller after the retaining ring 21 is resisted by the dirt. Therefore, when the spring 22 is reset, the vibration of the retaining ring 21 and the friction ring 20 is reduced, thereby reducing the vibration between the components in the mechanism.

[0037] Example 9: Reference Figure 1-Figure 9, a lithium battery rolling mechanism precision pressure control system, used to control any of the above-mentioned lithium battery rolling mechanisms, including: a controller 23 and a pressure gauge 24, a flow control solenoid valve is connected to each of the pipelines 10 and 11, the flow control solenoid valve, the solenoid valve, the solenoid valve 2, the air compressor, the conveyor belt mechanism, the pressure sensor 5 and the pressure gauge 24 are all electrically connected to the controller 23, the controller 23 is fixed on the mounting frame 1, and the pressure gauge 24 is installed on the controller 23.

[0038] The principles and beneficial effects of the above scheme are: The controller 23 starts the conveyor belt mechanism to move the tooling with the battery pack. When the battery pack moves to the bottom of the mounting frame 1, the controller 23 starts the air compressor, the solenoid valve 2 closes the pipeline 2 11 and releases the back pressure of the pressure-maintaining cylinder 2, and the solenoid valve starts to output positive pressure to the pressure-maintaining cylinder 2 through the pipeline 10; when the pressure-maintaining cylinder 2 needs to be moved upward, the air compressor starts again, the solenoid valve closes the pipeline 10 and releases the positive pressure of the pressure-maintaining cylinder 2, and the solenoid valve 2 starts to output back pressure to the pressure-maintaining cylinder 2 through the pipeline 2 11. When outputting positive pressure or back pressure, the solenoid valve in the pipeline 10 and the solenoid valve 2 in the pipeline 2 11 can both adjust the corresponding pressure to improve the accuracy of pressure control, thereby realizing the upward or downward movement of the pressure wheel 45, and the pressure wheel 45 can apply sufficient pressure on the label after moving downward to its position, while ensuring that the battery pack is not damaged; The pressure sensor 5 can record the pressure applied to the label in real time, and feed it back to the pressure gauge 24 through the processing of the controller 23. The pressure gauge 24 is an NP-30 electronic pressure gauge in the prior art. The pressure gauge 24 can be used to intuitively read the pressure applied to the battery pack. If the pressure value rises or falls abnormally, the pressure can be controlled in time through the corresponding flow control solenoid valve, which greatly improves the practicality of the device when in use.

[0039] Example 10: Reference Figure 1-Figure 9 The guide mechanism includes: a pump casing 25, a friction wheel 26, a pump shaft and pump blades. The pump casing 25 is connected to the top of the mounting tube 17. The pump shaft is rotatably connected inside the pump casing 25. Both ends of the pump shaft are placed outside the pump casing 25. A friction wheel 26 is connected to each end of the pump shaft. The friction wheel 26 and the top surface of the guide bar 14 are in rolling friction cooperation. The pump blades connected to the pump shaft are placed in the pump casing 25.

[0040] The principles and beneficial effects of the above scheme are: When the screw 15 rotates, the screw block 18 drives the mounting tube 17 to move under the rolling friction cooperation between the friction wheel 26 and the top surface of the guide strip 14. At the same time, the rolling friction cooperation between the friction wheel 26 and the top surface of the guide strip 14 can increase the stability of the mounting tube 17 when moving, and further ensure that the axis of the friction ring 20 is parallel to the axis of the pressure wheel 45, so as to avoid damage to the pressure wheel 45 when the friction ring 20 cleans the dirt on the pressure wheel 45, and ensure that there are no cracks in the pressure wheel 45, so that its internal structure will not contact the outside. When the pressure wheel 45 works for a long time, the high temperature generated by friction will not cause the soft silica gel inside to melt, so as to ensure that the surface of the rolled label has a very high cleanliness.

[0041] Example 11: Reference Figure 1-Figure 9 One side of the pump housing 25 is connected to the liquid storage tank through a liquid inlet pipe 27. The liquid storage tank is filled with cleaning liquid. The liquid storage tank is fixed on the top of the crossbeam 7. The other side of the pump housing 25 is connected to the liquid outlet hole on the side wall of the mounting tube 17 through a liquid outlet pipe 28. The end of the recovery pipe is connected to the liquid outlet pipe 28. The end of the recovery pipe is placed between the pump housing 25 and the mounting tube 17. A one-way valve is installed in the recovery pipe. The other end of the recovery pipe is connected to the liquid storage tank. The liquid outlet hole is adjacent to the waist-shaped guide hole 29. The waist-shaped guide hole 29 is arranged toward the end of the friction ring 20 outside the mounting tube 17. The waist-shaped guide hole 29 is opened on the connecting pipe 30. One end of the connecting pipe 30 is connected to the retaining ring 21. The connecting pipe 30 is slidably connected to the inner wall of the mounting tube 17. The other end of the connecting pipe 30 is connected to the retaining ring 31. The inner diameter of the retaining ring 31 is equal to the inner diameter of the friction ring 20.

[0042] The retaining ring 31 is provided with a pressure relief hole 32, and the inner wall of the mounting tube 17 is rotatably connected with a rotating tube 34 and a rotating tube 2 35. The inner wall of the rotating tube 34 is provided with the ends of a plurality of spiral lines 36, and the other end of the spiral line 36 is frictionally matched with the side wall of the pressure wheel 45. The inner wall of the rotating tube 2 35 is provided with the ends of a plurality of blades 2 37, and the other end of the blade 2 37 is arranged adjacent to the side wall of the pressure wheel 45 to suck the cleaning liquid. The end surface of the rotating tube 34 facing the pressure relief hole 32 is provided with a plurality of blades 38, and the inner wall of the mounting tube 17 is rotatably connected with a rotating tube 34. Wheel 39, one side of the rotating wheel 39 is frictionally matched with the end surface of the rotating tube 34, and the other side of the rotating wheel 39 is frictionally matched with the end surface of the rotating tube 35. The end of the discharge pipe 40 is provided on the mounting tube 17, and the discharge pipe 40 is arranged between the rotating tube 35 and the other end of the mounting tube 17. The other end of the discharge pipe 40 is connected to the recovery tank. The end of the rubber ring 46 is connected to the mounting tube 17, and the other end of the rubber ring 46 is frictionally matched with the side wall of the pressure wheel 45. The rubber ring 46 is arranged between the other end of the mounting tube 17 and the discharge pipe 40.

[0043] The liquid outlet pipe 28 is connected to an air inlet pipe 47, and the liquid inlet pipe 27 is connected to an exhaust pipe 48. A one-way valve three is installed in the air inlet pipe 47, and an exhaust valve is installed in the exhaust pipe 48. A one-way valve five is installed in the liquid inlet pipe 27, and the exhaust valve is arranged between the pump housing 25 and the one-way valve five.

[0044] The principles and beneficial effects of the above scheme are: When the mounting tube 17 moves from right to left, the pump shaft and the pump blades rotate synchronously while the friction wheel 26 rotates, so that the cleaning liquid in the liquid storage tank enters the liquid outlet hole through the liquid inlet pipe 27, the pump housing 25 and the liquid outlet pipe 28. When there is no dirt on the pressure wheel 45, the cleaning liquid will not enter the mounting tube 17 through the liquid outlet hole. Since the friction wheel 26 drives the pump blades to rotate continuously, the pressure in the pump housing 25 and the liquid outlet pipe 28 increases continuously. At this time, the cleaning liquid returns to the liquid storage tank through the recovery pipe and the one-way valve, which can prevent the pressure in the guide mechanism from being too high and being damaged; When there is dirt on the pressure wheel 45, the friction ring 20 moves toward the inside of the mounting tube 17, and the waist-shaped guide hole 29 moves toward the liquid outlet hole synchronously until the two are connected to each other. When the area or volume of the dirt is large, the conductive area between the waist-shaped guide hole 29 and the liquid outlet hole is increased, and the volume of the cleaning liquid flowing into the space between the baffle ring 21 and the baffle ring 31 increases. When the area or volume of the dirt is small, the conductive area between the waist-shaped guide hole 29 and the liquid outlet hole is reduced, and the volume of the cleaning liquid flowing into the space between the baffle ring 21 and the baffle ring 31 is reduced. Therefore, when the friction ring 20 is used for cleaning the dirt, the cleaning liquid is removed. After cleaning the dirt, the dirt remaining on the pressing wheel 45 can be flushed by the cleaning liquid, and the flushed dirt flows out of the pressure relief hole 32. When the dirt passes through the pressure relief hole 32, the dirt with a larger volume can be decomposed under the driving of the cleaning liquid with an increased flow rate and under the contact with the pressure relief hole 32. At the same time, when the cleaning liquid is output to the pressing wheel 45, it can not only avoid that the dirt is missed, but also the use of the cleaning liquid can be autonomously controlled according to the volume of the dirt, which greatly simplifies the complexity of the device and improves the autonomous control ability of the device. When the cleaning liquid passes through the pressure relief hole 32, it can impact the blades 38, so the rotating tube 34 can rotate in the mounting tube 17, and the rotating tube 35 can rotate synchronously in the opposite direction through the action of the middle rotating wheel 39. Since the inner wall of the rotating tube 35 is equipped with blades 37, the blades 37 and the blades 38 rotate synchronously, and the rotation of the blades 38 provides power for the rotation of the rotating tube 35. The rotating blades 37 can suck the cleaning liquid to prevent the cleaning liquid from accumulating in the rotating tube 34. The rotating rotating tube 34 drives the spiral line 36 to rotate. The rotating spiral line 36 and the cleaning liquid with dirt rub against the side wall of the pressing wheel 45 again in the circumferential direction. With the cooperation of the cleaning liquid, the side wall of the pressing wheel 45 is thoroughly cleaned in the circumferential direction to avoid uncleaned parts on the pressing wheel 45. The rotation of the second blade 37 reduces the pressure between the pressing wheel 45, the second rotating tube 35 and the side wall of the pressing wheel 45, which is more conducive to the flow of the cleaning liquid. While further decomposing the dirt, the cleaning liquid can be sent from the end of the second rotating tube 35 to the other end of the second rotating tube 35 and discharged into the recovery tank through the discharge pipe 40. The setting of the rubber ring 46 can increase the sealing of the mounting tube 17 when cleaning the pressing wheel 45, and assist in cleaning the side wall of the pressing wheel 45. When the mounting tube 17 moves from left to right, the rubber ring 46 rubs the pressing wheel 45 again, and at the same time, the cleaning liquid remaining on the pressing wheel 45 can be cleaned to avoid contaminating the label when the label is bonded; At the same time, the friction wheel 26 and the guide bar 14 roll and rub against each other in the opposite direction, thereby driving the pump shaft and the pump blades to rotate in the opposite direction. At this time, the one-way valve three in the air inlet pipe 47 is opened, and the outside air enters the pump housing 25 through the air inlet pipe 47 and the liquid outlet pipe 28, and then enters the exhaust pipe 48 through the liquid inlet pipe 27 and is discharged through the exhaust valve. The one-way valve five is arranged on the liquid inlet pipe 27, which can not only prevent the backflow of the cleaning liquid, but also prevent the air from entering the liquid storage tank through the liquid inlet pipe 27. The exhaust valve in the present application is specifically a Hermann HE200 exhaust valve, which is a valve body specially used for gas discharge. The exhaust valve can be set not only to reduce the air pressure in the pump housing 25, but also to prevent the bubbles in the cleaning liquid from entering the mounting pipe 17 when the mechanism is working normally, thereby avoiding the decline in cleaning quality.

[0045] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A lithium battery rolling mechanism, characterized in that: include: The mounting frame (1), the pressure-maintaining cylinder (2), the stopper (3) and the rolling assembly (4), wherein the mounting frame (1) is mounted on the conveyor belt mechanism, the output end of the pressure-maintaining cylinder (2) on the mounting frame (1) is connected to the rolling assembly (4), the rolling assembly (4) is arranged toward the conveyor belt mechanism, the side of the rolling assembly (4) is in contact with the top of the stopper (3), the stopper (3) is threadedly connected to the mounting frame (1), and the stopper (3) is specifically cylindrical.

2. A lithium battery rolling mechanism according to claim 1, characterized in that: The rolling assembly (4) comprises: a pressure sensor (5), a connecting plate (6) and a rolling device; the output end of the pressure-maintaining cylinder (2) is connected to the top of the connecting plate (6) via the pressure sensor (5); the side of the connecting plate (6) is in contact with the top end of the stopper (3); and the bottom of the connecting plate (6) is connected to the rolling device.

3. A lithium battery rolling mechanism according to claim 2, characterized in that: The connecting plate (6) is slidably connected to the mounting frame (1).

4. A lithium battery rolling mechanism according to claim 3, characterized in that: The rolling device comprises: a crossbeam (7), a longitudinal beam (8) and a rotating shaft (9); the crossbeam (7) is connected to the bottom of the connecting plate (6); the top of a longitudinal beam (8) is connected to each of the two sides of the crossbeam (7); each longitudinal beam (8) is rotatably connected to one end of the rotating shaft of the rotating shaft (9); and the pressure wheel (45) on the rotating shaft (9) is arranged toward the conveyor belt mechanism.

5. A lithium battery rolling mechanism according to claim 4, characterized in that: The specific material of the pressing wheel (45) is soft silica gel.

6. A lithium battery rolling mechanism according to claim 3, characterized in that: Also includes: Air supply mechanism; the air supply mechanism comprises: an air compressor, a pipeline (10) and a second pipeline (11); the air compressor is connected to the mounting frame (1); and the pressure-maintaining cylinder (2) is connected to the air compressor via the pipeline (10) and the second pipeline (11).

7. A lithium battery rolling mechanism according to claim 6, characterized in that: The first pipe (10) is connected to a solenoid valve, and the second pipe (11) is connected to a second solenoid valve. Both the first solenoid valve and the second solenoid valve are two-position three-way solenoid valves.

8. A lithium battery rolling mechanism according to claim 4, characterized in that: A mounting groove (12) is formed at the bottom of the cross beam (7), the end of the mounting groove (12) is connected to a through groove (13) on the end surface of a longitudinal beam (8), a guide strip (14) is provided on each inner wall of the mounting groove (12), the end of a screw rod (15) is rotatably connected to the inner wall of the mounting groove (12), the screw rod (15) is connected to the output end of a motor (16), the motor (16) is connected to the inner wall of the mounting groove (12), a cleaning mechanism is connected to the screw rod (15), the cleaning mechanism is frictionally engaged with a pressure wheel (45) of the rotating shaft (9), and the cleaning mechanism is rollingly frictionally engaged with the guide strip (14).

9. A lithium battery rolling mechanism according to claim 8, characterized in that: The cleaning mechanism comprises: a mounting tube (17) and a screw block (18); two screw blocks (18) are threadedly connected to the screw rod (15); the screw block (18) is connected to the mounting tube (17); a guide mechanism at the top of the mounting tube (17) is in rolling frictional engagement with the guide strip (14); the inner diameter of the mounting tube (17) is greater than the diameter of the pressing wheel (45); and the mounting tube (17) and the pressing wheel (45) are coaxially arranged.

10. A lithium battery rolling mechanism precision pressure control system, used to control a lithium battery rolling mechanism according to any one of claims 1 to 7, characterized in that: include: The controller (23) and the pressure gauge (24) are each connected to a flow control solenoid valve in the pipeline (10) and the second pipeline (11). The flow control solenoid valve, the solenoid valve, the second solenoid valve, the air compressor, the conveyor belt mechanism, the pressure sensor (5) and the pressure gauge (24) are all electrically connected to the controller (23). The controller (23) is fixed on the mounting frame (1), and the pressure gauge (24) is mounted on the controller (23).

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