Liquid scraping device

Abstract

The utility model relates to the field of lithium battery diaphragms, and discloses a liquid scraping device which comprises a speed reducing motor, a coupler, a liquid scraping roller, two first bearing seats, two linear moving mechanisms and two support plates, the speed reducing motor drives the liquid scraping roller to rotate through the coupler; the two ends of the liquid scraping roller penetrate through the first bearing seats correspondingly, and the first bearing seats rotationally support the liquid scraping roller through bearings. Each support plate is provided with a linear moving mechanism, and the two linear moving mechanisms drive the bearing seats to move and drive the liquid scraping rollers to be away from or close to the thin film. According to the liquid scraping roller, the rotating function is added, and the technical problems that a traditional liquid scraping roller is unpowered, and precipitates can be generated on the surface of the roller after long-time use are solved. Precipitates cannot be attached to the surface of the thin film, and the quality of the thin film is improved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery separator processing, specifically a scraping device. Background Technology

[0002] Lithium-ion battery separators, as a key material in lithium-ion batteries, are mainly used in power batteries for new energy vehicles, consumer electronics batteries, and energy storage batteries. Generally, a scraper roller is used to scrape away the extractant from the lithium-ion battery separator / film. After the oil film undergoes the extraction process, the film surface carries a large amount of extractant, and the scraper roller removes this extractant as evenly as possible. Traditional scraping devices have several problems: the film is placed between two scraper rollers, the rollers are not powered and do not rotate, and over time, adhering precipitates will form on the roller surface. These precipitates will detach and adhere to the film surface, affecting the quality of the film product. Therefore, regular cleaning is required, which generates film waste and poses safety risks to the personnel responsible for cleaning.

[0003] Therefore, a rotatable scraper roller is needed. Utility Model Content

[0004] The purpose of this invention is to provide a rotatable scraper roller to increase the power of the scraper roller and solve the problem of precipitates sticking to the roller surface when the roller cannot rotate.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A scraping device includes a geared motor, a coupling, a scraping roller, two first bearing seats, two linear motion mechanisms, and two support plates;

[0007] The geared motor drives the scraper roller to rotate via a coupling;

[0008] Both ends of the scraper roller pass through the first bearing housing, and the first bearing housing supports the scraper roller by bearing rotation;

[0009] Each of the support plates is fixed with a linear motion mechanism. The two linear motion mechanisms drive the first bearing seat to move, causing the scraper roller to move away from or closer to the film.

[0010] Furthermore, the coupling is a universal coupling, and the geared motor is fixedly connected to the support plate.

[0011] Furthermore, the linear motion mechanism includes a movable seat fixed to the bottom surface of the first bearing seat, a gear, a gear shaft, a support block, and an anti-rotation mechanism;

[0012] A rack is fixed to the top surface of the movable seat, and the gear that meshes with the rack is fixed to one end of the gear shaft near the scraper roller.

[0013] The support block is fixed on the bracket plate, and a bearing is provided between the support block and the gear shaft;

[0014] The rotation of the gear shaft drives the gear to rotate, the rotation of the gear drives the rack to move, the movement of the rack drives the moving seat to move, and the moving seat is slidably connected to the support plate;

[0015] The anti-rotation mechanism is connected to the support plate to prevent the gear shaft from rotating.

[0016] Furthermore, the linear motion mechanism also includes two sliders fixed to the bottom surface of the movable seat and two guide rails fixed to the support plate. Each guide rail is slidably fitted with a slider, and the movable seat is slidably connected to the support plate through the sliders and guide rails.

[0017] Furthermore, the linear motion mechanism also includes a rotating shaft coaxially fixed to the other end of the gear shaft, and the anti-rotation mechanism includes a fixed base, a handle, and an open ring;

[0018] The fixed seat is sleeved on the rotating shaft, and one end of the fixed seat is fixedly connected to the support plate;

[0019] The open ring is an open circular ring with an opening in the circumference. The bolt passes through both ends of the open circular ring. The handle is fixed with a nut. When the handle is rotated, the two ends of the open circular ring are tightened between the nut and the bolt head. The open circular ring hugs the rotating shaft.

[0020] The open ring is fixed to the other end of the mounting base by screws.

[0021] Furthermore, a handwheel is fixed to the other end of the rotating shaft.

[0022] Furthermore, the bearing between the support block and the gear shaft is an angular contact bearing.

[0023] Furthermore, it also includes a horizontally placed connecting rod, one end of which is fixed to the first bearing seat, and the other end of which is equipped with a displacement sensor. The axial direction of the connecting rod is along the moving direction of the first bearing seat.

[0024] Furthermore, it also includes a rotary joint for connecting the scraper roller and the mold temperature controller. The coupling is connected to one end of the scraper roller, and the rotary joint is located at the other end of the scraper roller. The scraper roller has a flow channel inside that communicates with the rotary joint. The mold temperature controller transmits the heating liquid to the flow channel through the rotary joint.

[0025] Furthermore, the anti-rotation mechanism is an anti-rotation motor fixed on the support plate, which drives and controls the rotation of the gear shaft.

[0026] Compared with the prior art, the beneficial effects of this utility model are:

[0027] This device increases the concentricity of the geared motor and the scraper roller by using a coupling, while also providing additional rotational power to the scraper roller, thus solving the problem of precipitates sticking to the roller surface due to the roller's inability to rotate. After using this device, there is no need to stop the machine for cleaning the rollers, or for personnel to enter the equipment while it is running to clean the rollers, even with special equipment. This device significantly improves equipment safety, increases efficiency and production capacity, enhances film performance, reduces costs, and generates substantial economic benefits. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the scraping device disclosed in this utility model;

[0029] Figure 2 This is a schematic diagram of the assembly of the coupling, geared motor and scraper roller disclosed in this utility model.

[0030] Figure 3 This is a schematic diagram of the linear motion mechanism disclosed in this utility model;

[0031] Figure 4 This is a schematic diagram of the connecting rod disclosed in this utility model;

[0032] Figure 5 This is a schematic diagram of the anti-rotation mechanism disclosed in this utility model;

[0033] Figure 6 This is a schematic diagram of the handle structure disclosed in this utility model;

[0034] Figure 7 This is a schematic diagram of the structure of the scraping device disclosed in this utility model.

[0035] In the diagram: 1. Gear motor; 2. Coupling; 3. Scraper roller; 4. First bearing seat; 5. Support plate; 6. Moving seat; 7. Slider; 8. Guide rail; 9. Gear; 10. Gear shaft; 11. Support block; 12. Rack; 13. Fixed seat; 14. Rotating shaft; 15. Handle; 16. Open ring; 17. Handwheel; 18. Connecting rod; 19. Displacement sensor; 20. Rotary joint. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0037] like Figure 1-7The scraping device shown includes a geared motor 1, a coupling 2, a scraping roller 3, two first bearing seats 4, two linear motion mechanisms, and two support plates 5.

[0038] like Figure 1-2 The geared motor 1 shown drives the scraper roller 3 to rotate through the coupling 2; the two ends of the scraper roller 3 are respectively passed through the first bearing seat 4, and the first bearing seat 4 supports the scraper roller 3 by the rotation of the bearing; each support plate 5 is fixed with a linear motion mechanism, and the two linear motion mechanisms drive the first bearing seat 4 to move, causing the scraper roller 3 to move away from or closer to the film.

[0039] Specifically, the axial direction of the scraper roller 3 is left-right. The geared motor 1 is located outside one end and the left end of the scraper roller 3, providing the power for the rotation of the scraper roller 3. Bearings are respectively fitted on both ends of the scraper roller 3 and inside the two first bearing seats 4. The support plate 5 is the mounting base of the entire scraping device, and two linear movement mechanisms are mounted on the support plate 5. The linear movement mechanism can be a hydraulic cylinder, air cylinder, or other similar type, or see the preferred embodiment described later. The hydraulic cylinder, air cylinder, or hydraulic cylinder moves horizontally and is fixed on the support plate 5. The telescopic ends of the hydraulic cylinder, air cylinder, or hydraulic cylinder are fixedly connected to the first bearing seats 4.

[0040] Two linear motion mechanisms enable the scraper roller 3 to move back and forth, adjusting the pressure of the roller on the film surface and improving the scraping effect.

[0041] Optionally, the geared motor 1 moves synchronously with the scraper roller 3. The geared motor 1 can be installed on one of the linear motion mechanisms or fixed to the first bearing seat 4, so that the geared motor 1 and the scraper roller 3 move back and forth synchronously.

[0042] Preferably, the coupling is a universal coupling, and the geared motor 1 is fixedly connected to the support plate 5. Because the movement range of the scraper roller 3 is relatively small, generally not exceeding 10mm, a universal coupling can be used, eliminating the need to move the geared motor 1.

[0043] When using, such as Figure 7 As shown, exemplarily, the membrane moves upwards and is positioned between two wipers, but the two wipers are not required to be arranged opposite each other; the vertical position of each wiper is designed as needed. In use, the membrane and both wipers are installed in a cabinet that is isolated from the outside to prevent toxic gases from entering the external environment. The number of wipers is not limited to two and is designed as needed.

[0044] In a preferred embodiment, such as Figure 3 The linear motion mechanism shown includes a movable seat 6 fixed to the bottom surface of the first bearing seat 4, a gear 9, a gear shaft 10, a support block 11, and an anti-rotation mechanism.

[0045] A rack 12 is fixed to the top surface of the movable seat 6, and a gear 9 meshing with the rack 12 is fixed to one end of the gear shaft 10 near the scraper roller 3; a support block 11 is fixed to the bracket plate 5, and a bearing is provided between the support block 11 and the gear shaft 10; the rotation of the gear shaft 10 drives the gear 9 to rotate, the rotation of the gear 9 drives the rack 12 to move, and the movement of the rack 12 drives the movable seat 6 to move, thereby realizing the sliding connection between the movable seat 6 and the bracket plate 5; an anti-rotation mechanism is connected to the bracket plate 5 to prevent the gear shaft 10 from rotating.

[0046] Specifically, the rack 12 is arranged along its length in the forward and backward direction and the moving direction of the scraper roller, with the teeth of the rack 12 facing upward. The support plate 5 is located below the movable seat 6, and the movable seat 6 and the support plate 5 are slidably connected in the forward and backward direction. The support block 11 serves to support the gear shaft 10, and the number of support blocks 11 can be designed according to the length of the gear shaft 10. The axial direction of the gear shaft 10 is left and right, and its other end extends away from the film.

[0047] After rotating the gear shaft 10 and adjusting the position of the scraper roller, the position of the gear shaft 10 is fixed by the anti-rotation mechanism to prevent it from rotating.

[0048] The linear motion mechanism also includes two sliders 7 fixed to the bottom surface of the movable seat 6 and two guide rails 8 fixed to the support plate 5. Each guide rail 8 is slidably fitted with a slider 7, and the movable seat 6 is slidably connected to the support plate 5 through the sliders 7 and the guide rails 8. The length of the guide rail 8 is in the front-to-back direction.

[0049] Optionally, the geared motor 1 can be mounted on the movable base 6.

[0050] In a preferred embodiment, the linear movement mechanism further includes a rotating shaft 14 coaxial with the gear shaft 10, with the gear shaft 10 and the rotating shaft 14 positioned on a straight line. The anti-rotation mechanism includes a fixed base 13, a handle 15, and an open ring 16. This embodiment has low cost.

[0051] One end of the gear shaft 10 is fixed to one end of the rotating shaft 14. The rotating shaft extends the gear shaft. The fixed seat 13 is fitted onto the rotating shaft 14. There is a gap between the fixed seat 13 and the rotating shaft 14, and the rotating shaft can rotate relative to the fixed seat 13. One end of the fixed seat 13 is fixedly connected to the bracket plate 5. The open ring 16 is an open ring with an opening in the circumference. Bolts pass through both ends of the open ring. A nut is fixed on the handle 15. When the handle 15 is rotated, the two ends of the open ring are tightened between the nut and the bolt head, and the open ring hugs the rotating shaft 14. The open ring is fixed to the other end of the fixed seat 13 by screws.

[0052] The fixing seat 13 serves to fix and support the open ring. The fixing seat 13 is fixed relative to the bracket plate 5. The open ring is fixed to the end face of the fixing seat 13 away from the gear shaft by screws. This end face of the fixing seat 13 can be thickened to make the fixing seat 13 a T-shaped, through ring. Figure 5-6 The opening of the shown open ring can be adjusted by rotating a nut. A screw is placed at the midpoint of the open ring's length, with the screw positioned as close to the opening as possible. One or two screws are acceptable; if one is used, it is preferably located at the center line of the ring's length; if two are used, they are located on either side of the center line. The screw's length is arranged along the axial direction of the rotating shaft. This screw ensures that the open ring is fixed to the mounting base and remains stationary relative to the support plate without affecting the closure of the opening. For rotating the support gear shaft, a second bearing housing is fixed to the support base. The other end of the gear shaft passes through the second bearing housing and connects to the rotating shaft. The mounting base can be fixed to the bearing end cover of the second bearing housing, locking the rotating shaft to prevent rotation. The locking mechanism can be released when adjustment is needed.

[0053] To facilitate manual rotation of the shaft, a handwheel 17 is fixed to the other end of the shaft.

[0054] When the gear shaft 10 needs to be rotated manually, the bearing between the support block 11 and the gear shaft 10 is an angular contact bearing, or the bracket plate 5 supports the gear shaft 10 through an angular contact bearing. This facilitates simultaneous adjustment of both gears and both sides.

[0055] When the gear shaft 10 requires electric drive, the anti-rotation mechanism is an anti-rotation motor fixed on the bracket plate 5, which drives and controls the rotation of the gear shaft 10. The anti-rotation motor is connected to the gear shaft 10.

[0056] In a preferred embodiment, a horizontally placed connecting rod 18 is also included, such as Figure 4 One end of the connecting rod 18 shown is fixed to the first bearing seat 4, and the other end of the connecting rod 18 is equipped with a displacement sensor 19. The axial direction of the connecting rod 18 is along the moving direction and the front-back direction of the first bearing seat 4. One end of the connecting rod is directly fixed to the outer surface of the first bearing seat 4, and the other end is connected to the displacement sensor. The displacement sensor transmits signals to the field display or sensor receiving device, which facilitates on-site observation of the reading when adjusting the distance. At the same time, it transmits signals to the central control room for monitoring. The connecting rod 18 is located on the side of the scraper roller away from the film.

[0057] In the past, the gear in the previous embodiment was rotated by handwheel, and the circumferential distance of the gear was converted into linear displacement distance. However, since the backlash of the gears and racks in the mechanical mechanism cannot be eliminated, high-precision distance adjustment could not be achieved. By adding a displacement sensor, which directly detects the displacement of the scraper roller without going through the gears, the positioning accuracy is improved. The displacement detection device accurately monitors the roller's movement distance, eliminates the influence of mechanical backlash, and improves the roller's repeatability. This device can precisely control the movement distance of the scraper roller and can adjust the contact state between the scraper roller and the film in real time according to the actual needs of the production line. After a film breakage and restart, it can accurately advance to the previous scraping position to achieve a good scraping effect, significantly reducing debugging time, improving equipment efficiency, increasing equipment capacity, improving film performance, reducing costs, and generating significant economic benefits.

[0058] In a preferred embodiment, a rotary joint 20 is further included to connect the scraper roller 3 and the mold temperature controller. The coupling 2 connects to one end of the scraper roller 3, and the rotary joint 20 is located at the other end. The scraper roller 3 has an internal flow channel communicating with the rotary joint 20. The inlet of the flow channel is connected to the rotary joint 20, and the shape of the flow channel is designed as needed, for example, a spiral shape. The mold temperature controller transfers the heating liquid to the flow channel through the rotary joint 20. The external mold temperature controller provides a heat source to the scraper roller through the rotary joint, keeping the scraper roller warm and preventing the roller from freezing due to heat absorption from the evaporation of the liquid (extractant), and accelerating liquid evaporation. The rotary joint has one inlet and one outlet, which are connected to the mold temperature controller via pipes. The heating liquid can be hot water.

[0059] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A wiper device, characterized by: It comprises a speed reducer motor (1), a coupling (2), a liquid scraping roller (3), two first bearing seats (4), two linear moving mechanisms and two support plates (5); The speed reducer motor (1) drives the liquid scraping roller (3) to rotate through the coupling (2); The two ends of the liquid scraping roller (3) pass through the first bearing seats (4) respectively, and the first bearing seats (4) rotate to support the liquid scraping roller (3) through bearings; Each of the support plates (5) is fixed with a linear moving mechanism respectively, and the two linear moving mechanisms drive the first bearing seats (4) to move, so as to drive the liquid scraping roller (3) to move away from or close to the film.

2. A wiper device according to claim 1, characterized in that: The coupling (2) is a universal coupling, and the speed reducer motor (1) is fixedly connected with the support plate (5).

3. A wiper device according to claim 1, characterized in that: The linear moving mechanism comprises a moving seat (6) fixed on the bottom surface of the first bearing seat (4), a gear (9), a gear shaft (10), a support block (11) and a rotation stopping mechanism; The top surface of the moving seat (6) is fixed with a rack (12), and the gear (9) engaged with the rack (12) is fixed on one end of the gear shaft (10) close to the liquid scraping roller (3); The support block (11) is fixed on the support plate (5), and a bearing is arranged between the support block (11) and the gear shaft (10); The gear shaft (10) rotates to drive the gear (9) to rotate, the gear (9) rotates to drive the rack (12) to move, the rack (12) moves to drive the moving seat (6) to move, and the moving seat (6) is slidably connected with the support plate (5); The rotation stopping mechanism is connected on the support plate (5) and is used to prevent the gear shaft (10) from rotating.

4. A wiper device according to claim 3, characterised in that: The linear moving mechanism further comprises two sliding blocks (7) fixed on the bottom surface of the moving seat (6) and two guide rails (8) fixed on the support plate (5), one sliding block (7) is slidably arranged on each guide rail (8), and the moving seat (6) is slidably connected with the support plate (5) through the sliding blocks (7) and the guide rails (8).

5. A wiper device according to claim 3, characterized in that: The linear moving mechanism further comprises a rotating shaft (14) coaxially fixed with the other end of the gear shaft (10), and the rotation stopping mechanism comprises a fixing seat (13), a handle (15) and an open ring (16); The fixing seat (13) is sleeved on the rotating shaft (14), and one end of the fixing seat (13) is fixedly connected with the support plate (5); The open ring (16) is an open ring with openings arranged in the circumferential direction, bolts are arranged at the two ends of the open ring, a nut is fixed on the handle (15), and when the two ends of the open ring are fastened between the nut and the bolt cap of the bolt by rotating the handle (15), the open ring tightly embraces the rotating shaft (14); The open ring is fixed with the other end of the fixing seat (13) through a screw.

6. A wiper device according to claim 5, characterised in that: The other end of the rotating shaft is fixed with a hand wheel (17).

7. A wiper device according to claim 5, characterized in that: The bearing between the support block (11) and the gear shaft (10) is an angular contact bearing.

8. A wiper device according to claim 1, characterized in that: It further comprises a horizontally arranged connecting rod (18), one end of the connecting rod (18) is fixed on the first bearing seat (4), the other end of the connecting rod (18) is provided with a displacement sensor (19), and the axial direction of the connecting rod (18) is along the moving direction of the first bearing seat (4).

9. A wiper device according to claim 1, characterized in that: Also included is a rotary joint (20) for connecting the liquid scraping roller (3) and the mold temperature machine, the shaft coupling (2) is connected to one end of the liquid scraping roller (3), the rotary joint (20) is arranged at the other end of the liquid scraping roller (3), and the inside of the liquid scraping roller (3) is provided with a flow channel in communication with the rotary joint (20), and the mold temperature machine transmits the liquid for heating to the flow channel through the rotary joint (20).

10. A wiper device according to claim 3, characterized in that: The rotation-stopping mechanism is a rotation-stopping motor fixed on the support plate (5), and the rotation-stopping motor drives and controls the rotation of the gear shaft (10).

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