Casting oil removal device

Abstract

The invention discloses a curtain coating oil removal device which comprises an oil scraping plate and a power fitting thereof, the oil scraping plate is arranged on the power fitting and is perpendicular to the axis of the surface of a roller to be subjected to oil removal, and the radian of the contact surface of the oil scraping plate is consistent with that of the roller to be subjected to oil removal; the oil scraping plate is lowered to an oil scraping position or withdrawn to a waiting position under the action of a power accessory of the oil scraping plate; and the oil scraping plate can do reciprocating displacement along the axis direction of the roller to be deoiled under the action of a power accessory of the oil scraping plate. According to the device, oil on the surface of the C2 roller surface is automatically scraped, no foreign matter or accumulated oil is accumulated, it is guaranteed that melt is evenly heated on the C2 roller, and the roller surface is not damaged.

Description

Technical Field

[0001] The invention relates to the field of diaphragm preparation, in particular to a casting deoiling device. Background Art

[0002] Paraffin oil is an indispensable part in the preparation of wet-process diaphragms. After being melted at high temperature in the extruder, it undergoes thermal phase separation in the casting process, and a large amount of paraffin oil and a small amount of PE powder are precipitated on the contact roller surface. Due to the high-speed and uninterrupted production of the production line, paraffin oil and PE powder on the roller surface continue to accumulate, resulting in poor contact between the melt and the chilled roller, resulting in uneven heating of the melt, resulting in fluctuations in sheet thickness, and thus unstable product quality. Therefore, the quality of the fit between the melt and the contact roller surface is directly related to the success or failure of film production.

[0003] At present, the main measure taken by the diaphragm industry is to remove oil by pressing the degreasing roller onto the chilled roller and combining it with an air nozzle. However, the oil layer on the roller surface will solidify after a long time. Therefore, the roller surface is cleaned manually at a certain frequency to assist in oil removal. However, there are great safety risks and technical problems in personnel wiping the roller. Because the wet-process diaphragm production line is in high-speed production, there are risks in the operation of personnel wiping the chilled roller. Safety protection needs to be done well, and the roller wiping personnel need to have certain operating techniques and need to spend a certain amount of time on operation training to complete the operation. Summary of the invention

[0004] In view of the problems existing in the background technology of manual roller wiping, such as high professional skill requirements for operators, difficulty in standardizing operations, poor roller wiping effect, risk of personnel accidents and selection of scraper plate materials, the present application proposes a cast film oil removal device, which scrapes off the oil on the surface of the C2 roller through the automatic cast film oil removal device to ensure that there is no foreign matter and oil accumulation on the roller surface, ensure that the melt is heated evenly on the C2 roller, and cause no damage to the roller surface.

[0005] Technical solution:

[0006] A casting deoiling device comprises an oil scraper and a power accessory thereof, wherein the oil scraper is arranged on the power accessory and is kept perpendicular to the axis of the roller surface to be deoiled, and the curvature of the contact surface of the oil scraper is consistent with the curvature of the roller to be deoiled;

[0007] The oil scraper is lowered to the oil scraping position or retracted to the waiting position under the action of its power accessories;

[0008] The scraper plate can move back and forth along the axis direction of the roller to be deoiled under the action of its power accessories.

[0009] Preferably, the power accessory is a cylinder, including a telescopic adjustment cylinder for realizing the lowering and retracting function, and a linear cylinder for realizing the reciprocating displacement function.

[0010] Preferably, a fixed beam and a cylinder support are provided. The two ends of the fixed beam are fixed with telescopic adjustment cylinders, the end of the telescopic rod of the telescopic adjustment cylinder is fixed with a cylinder support, and a linear cylinder is fixed between the two cylinder supports, so as to fix the power accessories.

[0011] Preferably, the oil scraping plate is arranged on the piston rod of the linear cylinder and reciprocates on the linear cylinder along with the piston rod.

[0012] Preferably, an upper limit switch and a lower limit switch are arranged between the casting oil removal device and the roller surface to be deoiled. The oil scraping plate stops lowering when it descends to sense the lower limit switch, and stops retracting when it retracts to sense the upper limit switch.

[0013] Preferably, left and right limit switches are arranged at both ends of the casting oil removal device. The oil scraping plate switches direction when it laterally displaces to sense the left and right limit switches.

[0014] Preferably, the material of the oil scraping plate is a polymer nano-rubber material.

[0015] Preferably, the contact surface of the oil scraping plate is provided with a 5*30° chamfer.

[0016] Preferably, the oil scraping plate is clamped and fixed by a first fixing block and a second fixing block. Among them, the bottom end of the second fixing block is lower than the bottom end of the first fixing block. The material of the second fixing block is stainless steel, and the material of the first fixing block is a rigid plastic plate.

[0017] Preferably, the number of the oil scraping plates is 2, which are fixed by 2 sets of first fixing blocks and second fixing blocks, and the bottoms of the 2 sets of devices are parallel.

[0018] Advantages of the present invention

[0019] This device automatically scrapes the accumulated oil on the surface of the C2 roller, without foreign objects and accumulated oil, ensuring uniform heating of the melt on the C2 roller and not causing damage to the roller surface. Specifically, it includes the following advantages:

[0020] (1) The C2 roller automatic oil wiping equipment can clean and flatten the paraffin oil and impurities on the roller surface, and will not cause thickness fluctuations during operation like manual operation, reducing the waste of the bottom-rolled meters and improving the utilization rate of the production line.

[0021] (2) Reduce the number of personnel for roller wiping operations and avoid safety risks during roller wiping.

[0022] (3) The C2 roller automatic roller wiping tooling will not cause CCD defects during oil wiping, reducing the bottom-rolled additional meters to avoid CCD defects (300M per roll), and significantly improving the utilization rate of the production line.

[0023] When the C2 roller is automatically lubricated, there will be no oil leakage, oil accumulation, or foreign object dropping, avoiding film breakage caused by foreign objects due to manual operation and significantly improving the production line startup rate. Description of the Drawings

[0024] Figure 1 It is a structural line drawing of the present invention.

[0025] Figure 2 It is a structural schematic diagram of the present invention.

[0026] Figure 3 It is a three-dimensional view of the oil scraping plate of the present invention.

[0027] Figure 4 It is an assembly schematic diagram of the oil scraping plate of the present invention.

[0028] Figure 5 It is a cylinder control diagram of the present invention.

[0029] Figure 6 It is a wiring schematic diagram of the electromagnetic switch of the present invention. Detailed Embodiments

[0030] The present invention will be further described below in conjunction with embodiments, but the protection scope of the present invention is not limited thereto:

[0031] Combined with Figure 1 and Figure 2 , a casting degreasing device, which includes an oil scraping plate 1 and its power accessories. The oil scraping plate 1 is arranged on the power accessories and is perpendicular to the axis of the roller surface to be degreased 7 (C2 roller). The radian of the contact surface of the oil scraping plate 1 is consistent with the radian of the roller 7 to be degreased. The oil scraping plate 1 is lowered to the scraping position or retracted to the waiting position under the action of its power accessories. The oil scraping plate 1 can make reciprocating displacement along the axis direction of the roller 7 to be degreased under the action of its power accessories. The power accessories are cylinders, including a telescopic adjustment cylinder 3 for realizing the lowering and retracting functions and a linear cylinder 2 for realizing the reciprocating displacement function. A fixed beam 4 and a cylinder bracket 5 are provided. One telescopic adjustment cylinder 3 is fixed at each end of the fixed beam 4. The end of the telescopic rod of the telescopic adjustment cylinder 3 is fixed with the cylinder bracket 5, and the linear cylinder 2 is fixed between the two cylinder brackets 5, thereby realizing the fixation of the power accessories.

[0032] The oil scraping plate 1 is arranged on the piston rod of the linear cylinder 2 and makes reciprocating displacement on the linear cylinder 2 along with the piston rod.

[0033] An upper limit switch and a lower limit switch are arranged between the casting degreasing device and the roller surface to be degreased. The oil scraping plate 1 stops lowering when it is lowered to sense the lower limit switch, and the oil scraping plate 1 stops retracting when it is retracted to sense the upper limit switch.

[0034] Limit switches are provided at both ends of the casting degreasing device. When the oil scraping plate 1 moves horizontally and senses the left and right limit switches, its direction is switched.

[0035] The material of the oil scraping plate 1 is selected as a polymer nano-rubber material. This material has a low hardness and is wear-resistant, has a high elastic vibration absorption function, can return to its original state after being stressed, and has good sealing performance and corrosion resistance.

[0036] Combined with Figure 3 , a schematic diagram of the oil scraping plate 1 is given. In order to better fit the surface of the C2 roller, the contact surface of the oil scraping plate 1 is a concave arc. The radius of the concave arc is the same as the radius of the C2 roller (R(400 - 1000MM)). And for a better scraping effect, a 5*30° angle is formed on the contact surface of the oil scraping plate 1, which plays a better role in scraping oil. The oil scraping plate guide angle is replaced once every three months when there is no abnormality.

[0037] Combined with Figure 4 , the oil scraping plate 1 is clamped and fixed by the first fixing block 1-1 and the second fixing block 1-2. Among them, the bottom end of the second fixing block 1-2 is lower than the bottom end of the first fixing block 1-1. The material of the second fixing block 1-2 is stainless steel, and the material of the first fixing block 1-1 is a rigid plastic plate. The number of the oil scraping plates 1 is 2, and they are fixed by 2 sets of the first fixing blocks 1-1 and the second fixing blocks 1-2. The bottoms of the oil scraping plates 1 fixed by the 2 sets of devices are located on the same plane. The bottom end of the second fixing block 1-2 is lower than the bottom end of the first fixing block 1-1 to prevent the fixing block from contacting the roller surface and causing damage to the roller surface due to out-of-control travel when moving downward, so as to realize the self-protection of the oil scraping plate.

[0038] In a preferred embodiment, the distance between the oil scraping plate and the installation position of the C2 roller is (40 - 80mm). When the oil scraping plate moves up and down and senses the lower limit switch during the operation of the cylinder, it stops moving downward. The stroke is determined according to the length of the upper guide rail (1000 - 1200mm), and the left and right limit sensors are used to control the direction switching at both ends.

[0039] Electrical control: Combined with Figure 5 and Figure 6, the first channel of the first three-way is connected to the A port of the first solenoid valve through the first pressure regulating valve, and the second and third channels of the first three-way are respectively connected to the first air pipes of two telescopic adjusting cylinders; the first channel of the second three-way is connected to the B port of the first solenoid valve through the second pressure regulating valve, and the second and third channels of the second three-way are respectively connected to the second air pipes of two telescopic adjusting cylinders; the P port of the first solenoid valve is connected to the first channel of the third three-way through the first switch; the second channel of the third three-way is connected to the P port of the second solenoid valve through the second switch, and the A port of the second solenoid valve is sequentially connected to one end of the rodless cylinder through the third pressure regulating valve and the first proportional valve; the other end of the rodless cylinder is sequentially connected to the B port of the second solenoid valve through the second proportional valve and the fourth pressure regulating valve; the third channel of the third three-way is sequentially connected to the main air pipe through the third switch; an oil-water separator is arranged in front of the third switch. Compressed air purifies the oil-water mixture in the compressed air through the oil-water separator, controls the air pressure of the working circuit by controlling the solenoid valve switch through the control PLC, controls the up and down and left and right movement of the oil scraping plate through the cylinder, and the oil and dirt mixture scraped by the oil scraping plate falls on the recovery tray below the C2 roller from the C2 roller.

[0040] Working path: The oil scraping plate is lowered through the joint operation of two telescopic adjusting cylinders to fully fit the roller surface, and then the oil scraping plate is controlled to quickly scrape left and right on the roller surface through a linear cylinder (a rodless cylinder is selected in this embodiment). When the C2 roller surface operates two circles, the left and right scraping stops, and then the oil scraping plate is withdrawn from the roller surface through the joint operation of two telescopic adjusting cylinders and returns to the starting zero point to avoid continuously scraping the roller surface and affecting the service life of the oil scraping plate. In addition, when scraping the roller surface left and right, the moving speed can be controlled by adjusting the proportional valve, and the scraping frequency of the oil scraping plate can be set.

[0041] The solenoid valve switch is controlled by the PLC to adjust the air pressure to control the left and right back-and-forth speed. The greater the air pressure, the faster the speed. Currently, the corresponding speed of the C2 roller is 8.5 M / min (6.0 - 9.0 M / Min), the main air pressure is 0.7 Mpa (0.5 - 0.9 Mpa), and the scraping frequency of the oil scraping plate is 80 times (40 - 100).

[0042] Through the device of the present invention, the following beneficial effects are obtained:

[0043] (1) The automatic oil wiping equipment for the C2 roller can clean and flatten the paraffin oil and the impurities on the roller surface, and will not cause thickness fluctuations during operation like manual operation, reducing the waste of the bottom-rolled meters and improving the utilization rate of the production line.

[0044] (2) Reduce the number of personnel for roller wiping operations and avoid safety risks during roller wiping.

[0045] (3) The automatic roller wiping tooling for the C2 roller will not cause CCD defects during oil wiping, reducing the bottom-rolled additional meters to avoid CCD defects (300 M per roll), and significantly improving the utilization rate of the production line.

[0046] (4) When the C2 roller is automatically lubricated, there will be no oil leakage, oil accumulation, or foreign object dropping, avoiding film breakage caused by foreign objects due to manual operation and significantly improving the production line startup rate.

[0047] The specific embodiments described in this document are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A tape casting degreasing device, characterized in that It includes an oil scraper and a power accessory thereof. The oil scraper is arranged on the power accessory and is kept perpendicular to the axis of the roller surface to be deoiled. The curvature of the contact surface of the oil scraper is consistent with the curvature of the roller to be deoiled. The oil scraper is lowered to the oil scraping position or retracted to the waiting position under the action of its power accessories; The scraper plate can move back and forth along the axis direction of the roller to be deoiled under the action of its power accessories.

2. The device according to claim 1, characterized in that The power accessories are cylinders, including telescopic adjustment cylinders for realizing the lowering and retracting functions, and linear cylinders for realizing the reciprocating displacement functions.

3. The device according to claim 2, characterized in that A fixed beam and a cylinder bracket are provided, the telescopic adjustment cylinder is fixed at both ends of the fixed beam, the cylinder bracket is fixed at the end of the telescopic rod of the telescopic adjustment cylinder, and a linear cylinder is fixed between the two cylinder brackets, thereby realizing the fixation of the power accessories.

4. The device according to claim 2, characterized in that The oil scraper is arranged on the piston rod of the linear cylinder and moves back and forth on the linear cylinder along with the piston rod.

5. The device according to claim 1, characterized in that An upper limit switch and a lower limit switch are set between the cast oil removal device and the roller surface to be deoiled. The scraper plate stops lowering when it senses the lower limit switch, and stops retracting when it senses the upper limit switch.

6. The device according to claim 1, characterized in that Left and right limit switches are arranged at both ends of the cast film deoiling device, and the scraper plate is laterally displaced until it senses the left and right limit switches and switches direction.

7. The device according to claim 1, characterized in that The material of the oil scraper is a polymer nano rubber material.

8. The device according to claim 1, characterized in that The contact surface of the oil scraper plate is provided with a 5*30° chamfer.

9. The device according to claim 1, characterized in that The oil scraper is clamped and fixed by a first fixing block and a second fixing block, wherein the bottom end of the second fixing block is lower than the bottom end of the first fixing block, the second fixing block is made of stainless steel, and the first fixing block is made of a hard plastic plate.

10. The device according to claim 9, characterized in that The number of the oil scraping plates is 2, which are fixed by 2 sets of first fixing blocks and second fixing blocks, and the bottoms of the 2 sets of devices are parallel.

Images