Oil coating chamber structure of electrostatic oil coating machine

Abstract

The utility model discloses an oiling chamber structure of an electrostatic oiling machine, which belongs to the technical field of electrostatic oiling machines and comprises an oiling chamber and an oil receiving component, an upper oiling knife beam and a lower oiling knife beam are arranged in the oiling chamber up and down, the oil receiving component is arranged below the upper oiling knife beam, and the oil receiving component comprises a connecting rod, a swing arm frame, an oil receiving groove and an air cylinder. The swing arm frame is connected with the top of the inner side of the oiling chamber through a plurality of connecting rods, the bottom ends of the connecting rods are hinged to the swing arm frame, an air cylinder is installed on the inner wall of the oiling chamber, and the movable end of the air cylinder is hinged to the swing arm frame and can push the swing arm frame to swing. The electrostatic oiling machine has the advantages that the oil receiving assembly is arranged below the oiling cutter beam of the oiling chamber of the electrostatic oiling machine, the electrostatic oiling machine can be started when the electrostatic oiling machine is stopped, the oil receiving groove can be arranged under the oiling cutter beam to receive leaked oil generated by the oiling cutter beam, and the leaked oil is prevented from falling on an uncut metal strip to be gathered to form pollution.

Description

Technical Field

[0001] This utility model relates to the field of electrostatic oiling machine technology, and more specifically, to an oiling chamber structure for an electrostatic oiling machine. Background Technology

[0002] The electrostatic oiling machine consists of an oiling chamber, a high-voltage electrostatic power supply, an oil supply system, an oil heating and circulation system, an electrical control system, and an operating table. Upper and lower oiling blades / nozzles are horizontally installed inside the oiling chamber, allowing metal plates to pass freely. The oil supply system provides a metered amount of oil to the blades / nozzles, which flows evenly from the slits of the blades and nozzles. The high-voltage electrostatic power supply outputs approximately 100KV negative DC high voltage, applied to the oiling blades / nozzles, creating a high-voltage electrostatic field between the blades / nozzles and the steel plate acting as a ground plane. The negatively charged oil is atomized in this high-voltage electrostatic field and adsorbed onto the steel plate surface, forming a uniform, thin oil film. The electrostatic oiling machine is a high-tech product integrating mechanics, hydraulics, high-voltage electricity, and electrical control. Compared to traditional roller oiling machines, electrostatic oiling machines offer advantages such as uniform oil application, oil savings, reliable operation, and no environmental pollution. Application areas: Electrostatic oiling machines are mainly used in the steel and machinery industries.

[0003] Currently, when using electrostatic oiling machines to coat the surface of metal strips, the relatively poor sealing and cleanliness of the oiling chamber, coupled with imperfect oil receiving and return mechanisms, can lead to inconsistent oiling quality in some strips. Firstly, the electrostatic field within the oiling chamber attracts dust and debris from the surrounding air. Once this dust or debris adheres to the blade beam, the discharge concentrates on it, causing uneven discharge along the blade beam's length. This means that some areas with debris experience higher discharge levels, resulting in an uneven electric field distribution and uneven oiling, leading to streaky or patchy coating on the metal strip surface. Secondly, dust and impurities adsorbed on the blade beam or entering the oil return system without timely filtration can cause blockages, resulting in uneven or branched oiling and affecting the overall quality. Furthermore, the intrusion of dust and impurities without timely filtration can also degrade the oil quality or render it unusable. Furthermore, the absence of an oil receiving groove below the upper blade beam of the oiling machine means that during the slitting and unwinding process, un-atomized oil inside the blade beam will directly overflow onto the surface of the metal strip, resulting in excessive oil application to the head of the next roll and wasted oil. Moreover, poor sealing of the oiling chamber also causes oil mist to drift outside, leading to environmental pollution and further oil waste. For example, the utility model patent with announcement number CN206199535U discloses an oiling chamber, an oiling blade beam installed inside the oiling chamber, several rollers with their axes at the same height below the oiling blade beam, and material inlets at both ends of the oiling chamber. An upper roller and a lower roller with their axes on the same vertical plane are installed at the material inlets. The highest point of the lower roller's arc surface is on the same horizontal plane as the highest point of the rollers' arc surface. An adjustment mechanism is connected to the upper roller, which can be adjusted up and down on the vertical plane. The material passing through the material inlet can be clamped between the upper and lower rollers through the adjustment mechanism. However, the oiling chamber of this oiling machine has relatively poor sealing, and the dustproof effect needs improvement. Furthermore, it is not easy to control the diffusion of oil mist, and it cannot avoid situations where the amount of oil applied exceeds the standard, resulting in oil waste. Utility Model Content

[0004] To overcome the problems of poor sealing, insufficient dust prevention, and difficulty in controlling oil mist diffusion in existing electrostatic oiling machine coating chambers, as well as the inability to avoid excessive oil application and oil waste, this utility model provides a coating chamber structure for an electrostatic oiling machine, including a coating chamber and an oil receiving assembly. The coating chamber has an upper and lower oiling blade beam arranged vertically inside. An oil receiving assembly is located below the upper oiling blade beam. The oil receiving assembly includes a connecting rod, a swing arm frame, an oil receiving groove, and a cylinder. The swing arm frame is connected to the top of the coating chamber interior via several connecting rods. The bottom end of the connecting rod is hinged to the swing arm frame. A cylinder is installed on the inner wall of the coating chamber. The movable end of the cylinder is hinged to the swing arm frame and can push the swing arm frame to swing. An oil receiving groove is provided on the swing arm frame, the size of which matches the upper oiling blade beam.

[0005] An oil receiving assembly is installed below the oiling blade beam in the oiling chamber of the electrostatic oiling machine. This assembly can be started when the electrostatic oiling machine is stopped. The oil receiving trough can be placed directly below the oiling blade beam to catch the oil leakage generated by the oiling blade beam, preventing it from falling onto the uncut metal strip and accumulating and causing pollution. At the same time, the sides of the oil receiving trough allow the leaked oil to flow out to the edges for recycling.

[0006] Preferably, the oil receiving groove is provided with openings for oil drainage at both ends, and the oil receiving groove is made of nylon.

[0007] Preferably, the bottom of the oiling chamber is recessed downwards and an oil drain is formed in the middle, and the oil drain is connected downwards to an oil return pipe.

[0008] Preferably, a return oil filter is installed in the middle of the return oil pipe. By installing a return oil pipe at the bottom of the oiling chamber, oil that has not been coated with metal strips can be easily collected, and the return oil filter installed on the return oil pipe can repeatedly filter the oil to remove impurities, further improving the return oil effect.

[0009] Preferably, the oiling chamber has entrances and exits on both sides, and baffles are installed on both entrances and exits.

[0010] Preferably, the baffle is connected to the oiling chamber by fixing bolts, and the baffle is an insulating rubber plate.

[0011] By installing a removable baffle at the entrance and exit of the oiling chamber, the entrance and exit of the oiling chamber can be sealed. The baffle is made of insulating rubber, which can effectively reduce the outward dispersion of oil mist and the resulting oil waste while achieving insulation.

[0012] Preferably, the outer wall of the oiling chamber is provided with a reinforcing plate.

[0013] Preferably, the inner wall of the oiling chamber is provided with an insulating plate, and the surface of the insulating plate is provided with an anti-seepage coating.

[0014] Preferably, the oiling chamber is made of stainless steel.

[0015] Preferably, the oiling chamber is provided with two upper oiling blades, and each upper oiling blade is provided with an oil receiving assembly below it.

[0016] Beneficial effects:

[0017] The beneficial effects of adopting the technical solution of this utility model are as follows:

[0018] (1) An oil receiving assembly is installed below the oiling blade beam in the oiling chamber of the electrostatic oiling machine. It can be started when the electrostatic oiling machine is stopped. The oil receiving trough can be set directly below the oiling blade beam to catch the oil leakage generated by the oiling blade beam and prevent it from falling onto the uncut metal strip and accumulating to form pollution. At the same time, the oil leakage can flow to the edge on both sides of the oil receiving trough for recycling.

[0019] (2) By installing a removable baffle on the inlet and outlet of the oiling chamber, the inlet and outlet of the oiling chamber can be sealed. The baffle is made of insulating rubber plate, which can effectively reduce the oil mist from drifting outward and causing oil waste while achieving insulation.

[0020] (3) By setting up a return oil pipe at the bottom of the oiling chamber, it is convenient to collect the oil that has not been coated on the metal strip. Furthermore, the return oil pipe is equipped with a return oil filter, which can repeatedly filter the oil to remove impurities, thereby further improving the return oil effect. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of the oiling chamber of the electrostatic oiling machine of this utility model;

[0023] Figure 2 This is a three-dimensional connection structure diagram of the oiling chamber structure of the electrostatic oiling machine of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the outer shell of the oiling chamber of the electrostatic oiling machine of this utility model;

[0025] Figure 4 This is a three-dimensional structural diagram of the oil receiving groove on the oiling chamber of the electrostatic oiling machine of this utility model.

[0026] In the diagram: 1. Oiling chamber; 2. Inlet / outlet; 3. Baffle; 4. Upper oiling blade beam; 5. Lower oiling blade beam; 6. Connecting rod; 7. Swing arm frame; 8. Oil receiving trough; 9. Cylinder; 10. Oil drain port; 11. Oil return pipe; 12. Oil return filter; 13. Fixing bolt; 14. Anti-seepage coating; 15. Insulation board; 16. Reinforcing plate. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0028] This embodiment involves installing an oil-collecting assembly below the oiling blade beam in the oiling chamber of the electrostatic oiler. This assembly can be started when the electrostatic oiler is stopped. The oil-collecting trough is positioned directly below the oiling blade beam to catch any oil leakage, preventing it from falling onto the uncut metal strip and accumulating and causing contamination. Simultaneously, the sides of the oil-collecting trough allow leaked oil to flow out to the edges for easy recycling. The specific implementation method is as follows:

[0029] like Figures 1 to 4 As shown, an electrostatic oiling machine has an oiling chamber structure, including an oiling chamber 1 and an oil receiving assembly. The oiling chamber 1 has an upper oiling blade beam 4 and a lower oiling blade beam 5 arranged vertically inside. The oil receiving assembly is located below the upper oiling blade beam 4. The oil receiving assembly includes a connecting rod 6, a swing arm frame 7, an oil receiving groove 8, and a cylinder 9. The swing arm frame 7 is connected to the top of the inner side of the oiling chamber 1 through several connecting rods 6. The bottom end of the connecting rod 6 is hinged to the swing arm frame 7. The cylinder 9 is installed on the inner wall of the oiling chamber 1. The movable end of the cylinder 9 is hinged to the swing arm frame 7 and can push the swing arm frame 7 to swing. The swing arm frame 7 is provided with an oil receiving groove 8, the size of which matches the upper oiling blade beam 4. An oil receiving assembly is installed below the upper oiling blade beam 4 in the oiling chamber 1 of the electrostatic oiling machine. This assembly can be started when the electrostatic oiling machine is stopped. The oil receiving trough 8 can be positioned directly below the upper oiling blade beam 4 to catch the oil leaking from the upper oiling blade beam 4, preventing it from falling onto the uncut metal strip and accumulating and causing pollution. At the same time, the sides of the oil receiving trough 8 allow the leaked oil to flow out to the edges for recycling. An external drive device connected to the cylinder 9 can control the rotation of the swing arm frame 7, causing the oil receiving trough 8 to retract or be positioned directly below the upper oiling blade beam 4. When retracted, the lower edge of the swing arm frame 7 is above the inlet and outlet and will not cause interference.

[0030] The oil receiving trough 8 has openings at both ends for oil drainage, and the oil receiving trough 8 is made of nylon. The sides of the oil receiving trough 8 allow leaked oil to flow out to the edges, thus facilitating oil recycling.

[0031] The bottom of the oiling chamber 1 is recessed downwards and an oil drain port 10 is formed in the middle. The oil drain port 10 is connected downwards to the oil return pipe 11. The oil return pipe 11 and the oil drain port 10 facilitate the recovery of oil scattered in the oiling chamber 1. The oiling chamber 1 has a hole-shaped depression in the middle, which facilitates the collection of oil.

[0032] An oil return filter 12 is installed in the middle of the oil return pipe 11. By installing the oil return pipe 11 at the bottom of the oiling chamber 1, the oil that has not been coated with metal strip can be easily collected, and the oil return filter 12 installed on the oil return pipe 11 can repeatedly filter the oil to remove impurities, further improving the oil return effect.

[0033] The oiling chamber 1 has inlets and outlets 2 on both sides, and each inlet and outlet 2 is equipped with a baffle 3. The baffle 3 partially seals the inlets and outlets 2, and the opening between the baffle 3 and the inlet / outlet 2 is consistent with the thickness of the metal strip, thus preventing oil mist from diffusing from the inlets and outlets 2.

[0034] The baffle 3 is connected to the oiling chamber 1 by fixing bolts 13. The baffle 3 is an insulating rubber plate. By installing the removable baffle 3 on the inlet and outlet 2 of the oiling chamber 1, the inlet and outlet of the oiling chamber 1 can be sealed. The baffle 5 is made of insulating rubber plate, which can effectively reduce the outward dispersion of oil mist and the resulting oil waste while achieving insulation.

[0035] The outer wall of the oiling chamber 1 is provided with a reinforcing plate 16. The reinforcing plate 16 can improve the external pressure resistance of the oiling chamber 1, making it less prone to damage.

[0036] An insulating plate 15 is provided on the inner wall of the oiling chamber 1, and an anti-seepage coating 14 is provided on the surface of the insulating plate 15. The insulating plate 15 can improve the insulation performance of the oiling chamber 1, and the anti-seepage coating 14 can prevent oil seepage and facilitate the return of oil in the oiling chamber 1.

[0037] The oiling chamber 1 is made of stainless steel.

[0038] The oiling chamber 1 is equipped with two upper oiling blade beams 4, and an oil receiving component is provided below each upper oiling blade beam 4.

[0039] Oil receiving tank installation process:

[0040] (1) Fabrication of the oil receiving tank swing arm frame: The oil receiving tank frame adopts a swing arm design. Lightweight aluminum alloy is preferred as the material. Depending on the size of the oiling chamber, aluminum alloy square tubes with specifications of 60*30*3mm can be selected for welding. The frame welding needs to be stable and dimensionally accurate. The frame length should be 200mm longer than the blade beam length. After the frame is connected and fixed to the connecting rod and the oil receiving tank, it is necessary to ensure that the lowest height of the final oil receiving tank should be 50-100mm below the upper blade beam.

[0041] (2) Fixing the oil receiving groove: Phenolic resin profiles should be used for the oil receiving groove. The length of the oil receiving groove should be consistent with the oil receiving groove swing arm frame, and the width should be 40-70 mm. The oil receiving groove and the oil receiving groove swing arm frame should be connected with M3*10 mm self-tapping screws. After the connection is completed, clean the surface debris.

[0042] (3) Fixing of the oil receiving tank swing arm frame: The two ends of the oil receiving tank swing arm frame are connected by connecting rods and suspended above the oiling chamber. The connection between the connecting rod base and the oiling chamber can be fixed with M16*30mm bolts. Note that the oiling machine should be stopped before entering the oiling chamber. After the oil in the oiling chamber has fully flowed back, high voltage static electricity should be released to prevent unsafe situations from occurring. When drilling during the fixing process, protective measures should be taken to prevent metal debris from falling into the oiling chamber. The length of the connecting rod should be reasonably selected according to the width of the oil receiving tank swing arm frame, and the load-bearing capacity should meet the requirements.

[0043] (4) Connection between the oil receiving tank swing arm frame and the cylinder: When connecting the single-sided oil receiving tank swing arm frame and the cylinder, either a single cylinder or a double cylinder can be used. If a single cylinder is used, the connection position with the frame should be located in the middle of the frame. If a double cylinder is used, the connection can be made at both ends of the frame. Note that a cylinder with a suitable stroke range should be selected and fixed to the oiling chamber housing with M16*30mm bolts. The fixing position should meet the requirement that the swing amplitude of the oil receiving tank swing arm frame is 45-75°.

[0044] (5) Connection and adjustment of pneumatic control components: The cylinder should be connected to compressed air in a timely manner so that the mechanical movement can be realized by the pneumatic control components. The operation of the cylinder control components of the oil receiving trough swing arm frame must be interlocked and synchronized with the start and stop of the machine train. When the machine train stops running, the oil receiving trough falls to a position 50-100 mm below the upper blade beam to collect oil and return it. When the equipment restarts, the oil receiving trough frame rotates and moves to the side of the blade beam to resume oiling. During the adjustment process, attention should be paid to whether the swing action of the oil receiving trough is correct, whether the starting speed is sensitive, and whether the oil receiving trough scrapes against the blade beam, splashes oil, or affects the oil atomization spray range of the blade beam.

[0045] The process of sealing using a rubber insulating sheet:

[0046] (1) Measurement of the inlet and outlet dimensions of the oiling chamber: Use a tape measure to accurately measure the length and width of the inlet and outlet of the electrostatic oiling machine. After the strip is ready to be oiled and tension is established, use a marker to mark the position on the outside of the inlet and outlet box of the oiling machine along the width direction of the inlet and outlet, which is flush with the strip.

[0047] (2) Cutting of rubber insulation material: The length of the insulating rubber sheet is extended by 50 mm on each side according to the length of the inlet and outlet of the electrostatic oiling machine. The width of the insulating rubber sheet is generally 20 mm longer than the upper edge of the inlet and outlet of the oiling chamber to the level of the strip. Use a steel ruler and a marker to mark the length and width. After marking, use sharp scissors to cut the insulating rubber sheet neatly. After cutting, drill holes at intervals of about 250 mm along the length of the insulating rubber sheet, 20 mm away from the edge of the width. The size of the holes should be large enough to pass through an M6*25 hexagon socket bolt.

[0048] (3) Drilling holes at the edge of the oiling chamber entrance and exit box: Use an electric drill to evenly distribute holes about 20 mm from the edge of the oiling chamber entrance and exit box. The drilling position should correspond to the drilling position of the insulating rubber sheet. If necessary, the rubber sheet can be neatly laid on the edge of the box to mark the drilling position. Before drilling, the electrostatic oiling machine should be turned off and static electricity released to prevent unsafe situations from occurring. When drilling, pay attention to protection to prevent metal shavings and debris from falling into the oiling chamber and causing oil circuit blockage.

[0049] (4) Rubber insulation material installation: Align the holes of the insulating rubber sheet with the edge holes of the oiling chamber inlet and outlet box, and use hex bolts to tightly connect the insulating rubber sheet to the oiling machine box. At this time, the lower edge of the rubber sheet is about 20 mm away from the marked position of the strip.

[0050] (5) Adjustment of the tape: After the insulating rubber sheet is installed, a trial production should be carried out to observe whether the height of the insulating rubber sheet is appropriate. If there is any obstruction to the tape or friction with the metal strip during the production process, the rubber sheet needs to be cut in small quantities and multiple times to eliminate the adverse effects. If the dustproof effect is poor and the oil mist is still obvious, the width of the insulating rubber sheet needs to be increased appropriately to reduce the distance between the rubber sheet and the strip.

[0051] (6) Sealing completed: After sealing is completed, clean the site and the equipment in the oiling room. During subsequent use, regularly check whether the rubber sheet is loose or whether there is any accumulation of dirty oil droplets. If any abnormality is found, adjust it in time.

[0052] Working Principle: An oil receiving assembly is installed below the oiling blade beam in the oiling chamber of the electrostatic oiling machine. This assembly can be started when the electrostatic oiling machine is stopped. The oil receiving trough is positioned directly below the oiling blade beam to catch any oil leakage, preventing it from falling onto uncut metal strips and accumulating and causing contamination. Simultaneously, the sides of the oil receiving trough allow leaked oil to flow outwards for recycling. Removable baffles made of insulating rubber can seal the inlet and outlet of the oiling chamber, effectively reducing oil mist dispersion and waste. A return oil pipe at the bottom of the oiling chamber facilitates the collection of oil from uncoated metal strips. An oil return filter on the return oil pipe repeatedly filters the oil to remove impurities, further improving the oil return efficiency.

[0053] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An electrostatic coater oiling chamber structure characterized by comprising: The utility model provides an oiling room (1) and oil receiving assembly, the inside of oiling room (1) is provided with upper oiling sword beam (4) and lower oiling sword beam (5) up and down, the lower of upper oiling sword beam (4) is provided with oil receiving assembly, and the oil receiving assembly includes connecting rod (6), swing arm frame (7), oil receiving groove (8) and pneumatic cylinder (9), swing arm frame (7) is connected with the top of oiling room (1) inside through a plurality of connecting rod (6), the bottom end of connecting rod (6) is hinged with swing arm frame (7), the inner wall of oiling room (1) is installed with pneumatic cylinder (9), the movable end of pneumatic cylinder (9) is hinged with swing arm frame (7), and swing arm frame (7) can be pushed to swing, and swing arm frame (7) is provided with oil receiving groove (8), and the size of oil receiving groove (8) is matched with upper oiling sword beam (4).

2. The oiling chamber structure of the electrostatic oiling machine according to claim 1, wherein The both ends of the oil receiving groove (8) are provided with openings for oil discharge, and the material of the oil receiving groove (8) is nylon.

3. The electrostatic oiler according to claim 1, wherein The bottom of the oiling room (1) is concave downward, and the middle part is formed with an oil discharge port (10), and the oil discharge port (10) is connected downward with an oil return pipeline (11).

4. The electrostatic coater according to claim 3, wherein The middle part of the oil return pipeline (11) is provided with an oil return filter (12).

5. The electrostatic oiler according to claim 1, wherein Both sides of the oiling room (1) are formed with entrances and exits (2), and the both entrances and exits (2) are installed with baffles (3).

6. The electrostatic coater according to claim 5, wherein The baffle (3) is connected with the oiling room (1) through fixing bolts (13), and the baffle (3) is an insulating rubber plate.

7. The electrostatic oiler according to claim 1, wherein The outer wall of the oiling room (1) is provided with a reinforcing plate (16).

8. The electrostatic oiler according to claim 1, wherein The inner wall of the oiling room (1) is provided with an insulating plate (15), and the surface of the insulating plate (15) is provided with an anti-seepage coating (14).

9. The electrostatic oiler according to claim 1, wherein The material of the oiling room (1) is stainless steel.

10. The electrostatic oiling machine oiling chamber structure of claim 1, wherein The inside of the oiling room (1) is provided with two upper oiling sword beams (4), and each lower oiling sword beam (4) is provided with an oil receiving assembly.

Images