A battery rolling roller self-calibration positioning device

Abstract

This utility model relates to the field of battery electrode sheets and discloses a self-calibration and positioning device for battery rolling rollers. It includes a positioning platform with a hollow side wall and a lifting frame embedded within it. A top plate is horizontally fixed to the top of the lifting frame. A straight rod is fixedly connected to the top of the positioning platform, and a cylinder is fixedly connected to the middle of the straight rod. A retainer is fixedly connected between the top of the cylinder and the top plate. Slider blocks are sleeved on both sides of the straight rod, and a tripod is hinged to the top of each slider. A connecting seat is hinged to the top of the tripod, and the top of the connecting seat is fixed to the bottom of the top plate. Bearing seats are fixedly connected to the bottom of both sides. This self-calibration and positioning device for battery rolling rollers, by incorporating the lifting frame, achieves stable and adjustable lifting and real-time self-calibration positioning of the upper rolling roller relative to the lower rolling roller, eliminating the need for manual disassembly and assembly. This improves electrode sheet thickness control and solves the problem that traditional drilling positioning structures cannot dynamically adjust the rollers.

Description

Technical Field

[0001] This utility model relates to the field of battery electrode technology, specifically a battery rolling roller self-calibration and positioning device. Background Technology

[0002] The calendering process of battery electrodes is one of the key steps in battery manufacturing. To achieve electrode calendering, common equipment uses a pair of upper and lower rollers. The entire calendering unit is often positioned and installed by welding the frame or drilling bolts. The position of the rollers and the machine body is relatively fixed. If changes in roller gap, clamping offset, or parallelism error occur during long-term operation or maintenance, the positioning structure needs to be disassembled after stopping the machine. It is impossible to dynamically adjust during operation. The lifting, limiting, and calibration processes of the rollers are cumbersome, time-consuming, and prone to large errors.

[0003] Therefore, there is an urgent need for a battery rolling roller self-calibration positioning device to solve the above-mentioned technical defects. Utility Model Content

[0004] The purpose of this invention is to provide a battery rolling roller self-calibration positioning device to solve the problem that the perforated positioning structure mentioned in the background art cannot dynamically adjust the roller.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a battery rolling roller self-calibration positioning device, comprising a positioning platform, the side wall of which is hollow, a lifting frame embedded within the positioning platform, a top plate horizontally fixed to the top of the lifting frame, a straight rod fixedly connected to the top of the positioning platform, a cylinder fixedly connected to the middle of the straight rod, a retainer fixedly connected between the top of the cylinder and the top plate, sliders sleeved on both sides of the straight rod, a tripod hinged to the top of the slider, a connecting seat hinged to the top of the tripod, the top of the connecting seat fixed to the bottom of the top plate, bearing seats fixedly connected to the bottom of both sides, ball bearings installed in the bearing seats, an upper pressing roller assembled on the positioning platform via the ball bearings, a lower pressing roller disposed below the upper pressing roller, and a pressure sensor and a displacement sensor installed on the right side of both the upper and lower pressing rollers.

[0006] As a further technical solution of this utility model, a drive motor is fixedly connected to the left side of the positioning platform, a first gear is fixedly connected to the output shaft of the drive motor, a second gear is meshed with the top of the first gear, and the second gear is fixedly connected to the left side of the pressing roller.

[0007] As a further technical solution of this utility model, a gear groove is provided on the left side of the positioning platform, and the gear groove and the second gear are the same size and mesh with each other in the gear groove.

[0008] As a further technical solution of this utility model, the upper pressure roller and the lower pressure roller are the same size, both are made of alloy steel and are integrally forged, with a hard chrome plating layer on the surface.

[0009] As a further technical solution of this utility model, the bottom end of the positioning platform is provided with a through groove larger than the pressing roller, and two sets of fans are installed in the through groove. Each set of fans is equipped with a temperature sensor on the outside, and a fan cover is installed at the bottom end of each fan.

[0010] As a further technical solution of this utility model, an air outlet is fixedly connected to the bottom end of the hood, an exhaust pipe is connected to the bottom end of the air outlet, the output end of the exhaust pipe is connected to an exhaust fan, and the output pipe of the exhaust fan is connected to an external exhaust port.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the battery rolling roller self-calibration and positioning device not only achieves real-time self-calibration and positioning without manual disassembly and assembly, ensuring smooth and jam-free operation of the electrode sheet, but also avoids thermal expansion of the roller due to long-term operation.

[0012] (1) By setting up a lifting frame, top plate, upper pressure roller, cylinder, connecting seat, tripod, slider, linear rod, displacement sensor and pressure sensor, the upper pressure roller relative to the lower pressure roller is stably adjustable and can be raised and lowered in real time and self-calibrated in real time. No manual disassembly and assembly is required, which improves the control of electrode thickness and solves the problem that the traditional drilling positioning structure cannot be dynamically adjusted.

[0013] (2) By setting up a drive motor, a first gear, a second gear and a gear groove, the rotation control of the lower pressing roller is realized, ensuring that the electrode runs smoothly without jamming, avoiding the synchronous control problem caused by the difference in speed, while retaining the free pressing characteristics of the upper pressing roller.

[0014] (3) By setting up a fan, hood, temperature sensor, exhaust duct and exhaust fan, the heat generated during the operation of the downward roller is dissipated, the problem of thermal expansion of the roller due to long time is suppressed, and the problem of gap change after the surface temperature rise of traditional roller is difficult to automatically correct is solved. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present utility model;

[0016] Figure 2 This is a side view of the bearing housing structure of this utility model;

[0017] Figure 3 This is a front view schematic diagram of the downward pressure roller structure of this utility model;

[0018] Figure 4 This is a front view structural diagram of the tripod of this utility model.

[0019] In the diagram: 1. Lifting frame; 2. Top plate; 3. Upper pressure roller; 4. Pressure sensor; 5. Displacement sensor; 6. Lower pressure roller; 7. Positioning platform; 8. Exhaust fan; 9. Exhaust duct; 10. Air outlet; 11. Fan cover; 12. Temperature sensor; 13. Fan; 14. First gear; 15. Drive motor; 16. Gear slot; 17. Second gear; 18. Linear rod; 19. Slider; 20. Tripod; 21. Connecting seat; 22. Fixing device; 23. Cylinder; 24. Bearing seat; 25. Ball bearing. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 An embodiment of this utility model provides a battery rolling roller self-calibration positioning device, including a positioning platform 7, the side wall of the positioning platform 7 is hollow, a lifting frame 1 is embedded in the positioning platform 7, a top plate 2 is horizontally fixed to the top of the lifting frame 1, a straight rod 18 is fixedly connected to the top of the positioning platform 7, a cylinder 23 is fixedly connected to the middle position of the straight rod 18, a retainer 22 is fixedly connected between the top of the cylinder 23 and the top plate 2, sliders 19 are sleeved on both sides of the straight rod 18, a tripod 20 is hinged to the top of the slider 19, a connecting seat 21 is hinged to the top of the tripod 20, the top of the connecting seat 21 is fixed to the bottom of the top plate 2, bearing seats 24 are fixedly connected to the bottom of both sides, ball bearings 25 are installed in the bearing seats 24, an upper pressing roller 3 is assembled on the positioning platform 7 through the ball bearings 25, a lower pressing roller 6 is arranged below the upper pressing roller 3, a pressure sensor 4 and a displacement sensor 5 are installed on the right side of the upper pressing roller 3 and the lower pressing roller 6;

[0022] Specifically, such as Figure 1 , Figure 2 and Figure 4As shown, cylinder 23, model MGPM16-25Z, is installed in the middle of linear rod 18. Its top is connected to the lower end of top plate 2 via fixing device 22, and its bottom is connected to slider 19 via connecting seat 21. Under the controller signal, cylinder 23 drives the top plate 2 to move up and down linearly, realizing the lifting and lowering of upper pressure roller 3. Sliding slider 19 is sleeved on the outside of linear rod 18 and slides, working with tripod 20 to play a synchronous limiting role, keeping the horizontal state without tilting during the entire lifting and lowering process. Displacement sensor 5 and pressure sensor 4 are respectively installed on the sides of upper pressure roller 3 and lower pressure roller 6, where displacement sensor 5 is an inductive LVDT sensor. The sensor, model HL-50, measures the actual displacement of the upper pressure roller 3 in real time. The pressure sensor 4, model HYD-B, is a high-precision thin-film resistive pressure sensing module that measures the unit contact pressure between the upper pressure roller 3 and the lower pressure roller 6 and the battery in real time. It can also distinguish between uneven local pressure or off-center load. The two sets of sensors synchronously transmit the collected real-time data to the external PLC controller of the device. The PLC controller determines whether there is a deviation that exceeds the set tolerance and triggers the control logic command to control the cylinder 23 to adjust the position of the top plate 2, realizing a fully automatic closed-loop real-time self-calibration function without manual disassembly and assembly.

[0023] A drive motor 15 is fixedly connected to the left side of the positioning platform 7. The output shaft of the drive motor 15 is fixedly connected to a first gear 14. A second gear 17 is meshed with the top of the first gear 14. The second gear 17 is fixedly connected to the left side of the lower pressure roller 6. A gear groove 16 is opened on the left side of the positioning platform 7. The gear groove 16 and the second gear 17 are the same size and mesh with each other in the gear groove 16. The upper pressure roller 3 and the lower pressure roller 6 are the same size and are both made of alloy steel forging as a whole with a hard chrome plating on the surface.

[0024] Specifically, such as Figure 1 and Figure 3 As shown, the drive motor 15 is a DC brushed geared motor, model RS775-12V-6000RPM. Its output shaft is coaxially connected to the first gear 14 through a rigid coupling. The first gear 14 and the second gear 17 are meshed in the gear groove 16. When the drive motor 15 is powered on, the first gear 14 drives the second gear 17 to rotate. During the process of the battery electrode passing through the rolling channel between the rollers, the electrode is pulled by the movement of the lower pressing roller 6, while the upper pressing roller 3 presses on the electrode by its own mass and rolls with the friction of the electrode. No motor or chain drive is required. The drive motor 15 is speed regulated by the PWM signal of the PLC controller and combined with the Hall encoder signal to realize closed-loop speed feedback, ensuring that the electrode runs smoothly without jamming.

[0025] The bottom of the positioning platform 7 has a through groove larger than the pressing roller 6. Two sets of fans 13 are installed in the through groove. Each set of fans 13 has a temperature sensor 12 installed on the outside. Each fan 13 has a fan cover 11 installed at the bottom. The bottom of the fan cover 11 is fixedly connected to an air outlet 10. The bottom of the air outlet 10 is connected to an exhaust pipe 9. The output end of the exhaust pipe 9 is connected to an exhaust fan 8. The output pipe of the exhaust fan 8 is connected to an external exhaust port.

[0026] Specifically, such as Figure 1 As shown, two sets of fans 13 are installed at the bottom of the positioning platform 7 and below the pressure roller 6. The fans are turbine-type axial flow cooling fans, model AFB1212HHE. An arc-shaped fan shroud 11 is set below the fans 13 to gather airflow. The bottom of the fan shroud 11 is connected to the air outlet 10 through a sealing buckle. It is connected to the exhaust fan 8 through a flexible exhaust duct 9. The exhaust fan 8 is a high negative pressure centrifugal fan, model YWF4D-500. A temperature sensor 12 is set on the side of the fans 13. The temperature sensor 12 is an NTC thermistor module to collect the temperature change of the roller 6 surface. The signal of the temperature sensor 12 is transmitted to the PLC controller in real time. When the temperature exceeds the 45℃ threshold, the PLC controller automatically starts the fans 13 and the exhaust fan 8 to work simultaneously. The hot airflow is gathered through the fan shroud 11 and discharged to the outside of the device by the exhaust fan 8 through the exhaust duct 9.

[0027] The computer software involved in the cylinder 23 carrier in the technical solution is software technology known to those skilled in the art; it is merely applied to the aforementioned hardware carrier. In other words, the computer software portion of the technical solution is an essential technical feature for solving the aforementioned technical problem, constituting a necessary technical feature for the technical problem solved by this application, but it is not a differentiating technical feature or a point of technical improvement. The applicant has not made any technical improvements to the computer software portion involved in the aforementioned related hardware carrier, nor is it a key technical point of the invention.

[0028] Therefore, it can be seen that the "pressure sensor 4", "displacement sensor 5", "exhaust fan 8", "temperature sensor 12", "fan 13", "drive motor 15" and other components involved in this application are all physical functional modules that combine computer software programs or protocols in the prior art with the hardware carrier of this application. The computer software programs involved in these physical functional modules are all technologies known to those skilled in the art and are not improvements of this application. The improvement of this application should be the interaction relationship between the various physical functional modules, that is, the improvement of the overall structure of this application, in order to solve the corresponding technical problems to be solved by this application.

[0029] Working principle: After the equipment is powered on, the PLC controller initializes the state of each component, the drive motor 15 starts, and drives the first gear 14 to rotate. The first gear 14 meshes with the second gear 17 in the gear slot 16, driving the lower pressure roller 6 to start rotating at a constant speed. The electrode sheet passes through the rollers from below, and the rotation of the lower pressure roller moves the electrode sheet forward. At this time, the upper pressure roller 3 is in a free rotation state. With its own weight and the pressing force of the top plate 2, it is pressed tightly against the electrode sheet and rotates slowly with the friction of the electrode sheet, thus playing a pressing role, making the electrode sheet thickness uniform and improving the density. The entire upper pressure roller 3 is mounted on the lifting frame 1. The cylinder 23 mounted on the straight rod 18 drives the top plate 2 to move up and down. The slider 19 slides along the straight rod 18. The tripod 20 and the connecting seat 21 make the top plate 2 rise and fall smoothly, avoiding tilting or uneven height, thereby controlling the gap between the upper pressure roller 3 and the lower pressure roller 6. The device has a gap. A displacement sensor 5 and a pressure sensor 4 are installed on the side of the roller. The displacement sensor 5 measures the precise position of the upper roller 3 in real time, and the pressure sensor 4 monitors the clamping force between the upper and lower rollers. The signal is sent to the PLC controller. If the system determines that the current roller is not aligned or the clamping force deviation is too large, it will control the cylinder 23 to readjust the position of the upper roller to complete the automatic calibration. Two sets of fans 13 are also set on both sides of the bottom of the device, which are aimed at the lower roller 6. The temperature sensor 12 monitors the surface temperature of the lower roller 6. If the temperature is too high, the controller will start the fan 13 and the exhaust fan 8. When the temperature exceeds the 45℃ threshold, the PLC controller will automatically start the fan 13 and the exhaust fan 8 to work simultaneously. The hot air is collected through the fan cover 11 and discharged to the outside of the device through the exhaust pipe 9 by the exhaust fan 8 to avoid the roller from expanding and changing the gap due to overheating. The whole process does not require manual adjustment of the roller position or disassembly.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A battery roll press roller self-calibrating positioning device, comprising a positioning table (7), characterized in that: The positioning platform (7) has a hollow side wall and a lifting frame (1) is embedded in the positioning platform (7). A top plate (2) is fixed horizontally on the top of the lifting frame (1). A straight rod (18) is fixedly connected to the top of the positioning platform (7). A cylinder (23) is fixedly connected to the middle position of the straight rod (18). A retainer (22) is fixedly connected between the top of the cylinder (23) and the top plate (2). Slider blocks (19) are sleeved on both sides of the straight rod (18). A tripod (20) is hinged to the top of the slider (19). The tripod (20) is hinged to a connecting seat (21) at the top. The top of the connecting seat (21) is fixed to the bottom of the top plate (2). Bearing seats (24) are fixedly connected to the bottom of both sides. Ball bearings (25) are installed in the bearing seats (24). The positioning table (7) is equipped with an upper pressure roller (3) through the ball bearings (25). A lower pressure roller (6) is provided below the upper pressure roller (3). A pressure sensor (4) and a displacement sensor (5) are installed on the right side of the upper pressure roller (3) and the lower pressure roller (6).

2. A battery roll press roller self-calibrating positioning device according to claim 1, characterized in that: The positioning platform (7) is fixedly connected to a drive motor (15) on the left side. The output shaft of the drive motor (15) is fixedly connected to a first gear (14). The top of the first gear (14) is meshed with a second gear (17). The second gear (17) is fixedly connected to the left side of the pressure roller (6).

3. A battery roll press roller self-calibrating positioning device according to claim 1, characterized in that: The positioning platform (7) has a gear groove (16) on its left side. The gear groove (16) and the second gear (17) are the same size and mesh with each other in the gear groove (16).

4. The battery rolling roller self-calibration positioning device according to claim 1, characterized in that: The upper pressure roller (3) and the lower pressure roller (6) are the same size and are both made of alloy steel forged as a whole, with a hard chrome plating layer on the surface.

5. The battery rolling roller self-calibration positioning device according to claim 1, characterized in that: The bottom of the positioning platform (7) has a through groove larger than the pressing roller (6). Two sets of fans (13) are installed in the through groove. Each set of fans (13) has a temperature sensor (12) installed on the outside. Each set of fans (13) has a fan cover (11) installed at the bottom.

6. The battery rolling roller self-calibration positioning device according to claim 5, characterized in that: The bottom end of the hood (11) is fixedly connected to an air outlet (10), the bottom end of the air outlet (10) is connected to an exhaust pipe (9), the output end of the exhaust pipe (9) is connected to an exhaust fan (8), and the output pipe of the exhaust fan (8) is connected to an external exhaust port.

Images