Roller cleaning system of aluminum coil cold rolling equipment

Abstract

The utility model provides a roller cleaning system of aluminum coil cold rolling equipment, which comprises two groups of cleaning components, the two groups of cleaning components are arranged on the feeding side of an aluminum strip, and one cleaning component corresponds to one support roller; the cleaning assembly comprises an oil scraping plate and a purging air knife, the oil scraping plate is obliquely arranged relative to the supporting roller, a gap is reserved between the oil scraping plate and the supporting roller, and the purging air knife is arranged on the side, away from the working roller, of the oil scraping plate and located between the oil scraping plate and the supporting roller. Lubricating oil on the supporting roller can be cleaned on the premise that the oil scraping plate does not make contact with the supporting roller.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum foil manufacturing, in particular to a roller cleaning system of aluminum coil cold rolling equipment. Background Art

[0002] Electronic aluminum foil is the raw material of aluminum electrolytic capacitors. It uses high-purity aluminum with an aluminum purity of ≥99.99% as the raw material. It is remelted in a smelting and static holding furnace, and a certain amount of trace elements are added. It is then cast into a plate ingot with a length, width and thickness of approximately 6500mm*1060mm*365~520mm. The plate ingot is then processed into electronic aluminum foil through processes such as milling, heat treatment, hot rolling, cold rolling, foil rolling, and finished product annealing. The aluminum foil is then corroded and chemically formed, and then stripped into anodes in aluminum electrolytic capacitors.

[0003] In the production and processing of cold rolling equipment, in order to avoid adhesion and damage to the roller surface and the aluminum coil surface during the rolling and thinning process of the rolling roller and the aluminum coil, a process lubricant prepared based on light white oil is generally sprayed on the roller surface and the aluminum coil surface to form an oil film on the surface to protect the roller surface and the aluminum coil surface and prevent aluminum sticking during the extrusion deformation process. On the other hand, the process lubricant can play a role in lubrication, cooling, and flushing, so that the surface of the aluminum coil remains clean. However, because the processing process requires product annealing, the process lubricant remaining on the surface of the aluminum coil needs to be cleaned while spraying the process lubricant on the cold rolling equipment to avoid the formation of oil spots during the annealing process. There are generally two devices for cold rolling equipment to remove the process lubricant incidental to the rolling process, one is the splash guard and purge device on the outlet side, and the other is the roller cleaning device installed on the corresponding support roller.

[0004] Conventional cold rolling mill roll cleaning devices are all pressing roll cleaning devices, which press the rubber roller or rubber plate against the roller surface of the support roller. Due to the low temperature of the support roller, the lubricating oil is easy to condense when it sticks to the support roller. The process lubricating oil on the roller surface is scraped off by the rubber roller or rubber plate. Although this pressing roll cleaning device can remove the process lubricating oil attached to the roller surface, it will also cause certain damage to the roller surface. When the fine particles that fall off during the rolling process are sandwiched into the rubber roller or rubber plate, an obvious bright line will be drawn on the high-speed rotating support roller, and it will cause surface quality problems when printed on the surface of the aluminum coil. In addition, the rubber roller or rubber plate is pressed against the support roller, and it produces a grinding effect with the support roller when rotating, which is not conducive to maintaining the roughness of the support roller. The gradual grinding during use will cause the roughness of the roller to decrease quickly. If the roughness decreases too quickly, layer channeling, slipping, etc. will occur, which is not conducive to stable rolling. Therefore, how to clean the lubricating oil on the support roller without the rubber plate contacting the support roller is a problem that needs to be solved. Summary of the invention

[0005] The utility model aims to solve at least one of the above-mentioned technical problems and provides a roll cleaning system for aluminum coil cold rolling equipment, which can clean the lubricating oil on the support roller without the scraper contacting the support roller.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is:

[0007] A roller cleaning system for aluminum coil cold rolling equipment includes two groups of cleaning components, the two groups of cleaning components are arranged on one side of the aluminum strip feeding, and one cleaning component is arranged corresponding to one supporting roller; the cleaning component includes a scraper plate and a purge air knife, the scraper plate is arranged obliquely relative to the supporting roller and a gap is retained between the scraper plate and the supporting roller, the purge air knife is arranged on the side of the scraper plate away from the working roller and the purge air knife is located between the scraper plate and the supporting roller.

[0008] Furthermore, a suction port is provided on the scraper plate; the cleaning assembly also includes a debris extraction channel, a extraction pump and a recovery box, one end of the debris extraction channel is connected to the suction port, the extraction pump is installed on the debris extraction channel, and the recovery box is connected to one end of the debris extraction channel away from the scraper plate.

[0009] Furthermore, the debris extraction channel includes a funnel-shaped chip inlet and a funnel-shaped chip outlet, the wide end of the funnel-shaped chip inlet is connected to the suction port, the extraction pump is connected to the narrow end of the funnel-shaped chip inlet and the narrow end of the funnel-shaped chip outlet, and the recovery box is connected to the wide end of the funnel-shaped chip outlet.

[0010] Furthermore, the recycling box body includes an outer shell and a recycling box, the outer shell is connected to the wide end of the funnel-shaped chip outlet, a accommodating space is provided in the outer shell, the accommodating space passes through one end of the outer shell, and the outer shell is provided with a swing door corresponding to the accommodating space; the recycling box is placed in the accommodating space.

[0011] Furthermore, the cleaning assembly also includes a discharge purge air knife, which is arranged on one side of the aluminum strip discharge and corresponds to the contact position between the working roller and the aluminum strip.

[0012] Furthermore, the gap between the scraper plate and the support roller is 5-10 mm.

[0013] Furthermore, the oil scraper plate is a polyurethane rubber plate.

[0014] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0015] When the roller cleaning system of the aluminum coil cold rolling equipment is used, during the rotation of the support roller, the gap between the scraper and the support roller is maintained, so that the scraper can scrape off the thicker lubricating oil on the support roller, and the remaining lubricating oil can be cleaned from the support roller by the purge air knife. It can be seen that the utility model can clean the lubricating oil on the support roller without the scraper contacting the support roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a roll cleaning system for an aluminum coil cold rolling equipment in a preferred embodiment of the utility model.

[0017] Figure 2 It is a connection diagram of the oil scraper, the debris extraction channel and the collection box.

[0018] In the accompanying drawings, 100-support roller, 101-working roller, 102-aluminum strip, 103-oil spray device, 1-oil scraper, 11-suction port, 2-purge air knife, 3-chip extraction channel, 31-funnel-shaped chip inlet, 32-funnel-shaped chip outlet, 4-extraction pump, 5-recovery box, 51-housing, 511-swing door, 52-recovery box, 6-discharge purge air knife. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] like Figure 1 and Figure 2 As shown, a preferred embodiment of the utility model provides a roll cleaning system for aluminum coil cold rolling equipment, which is mainly used to clean the lubricating oil on the support roll 100, the working roll 101 and the aluminum strip 102 in the aluminum coil cold rolling equipment. The support roll 100 and the working roll 101 are arranged as shown in FIG. Figure 1 As shown, a support roll 100, a working roll 101 and an oil spray device 103 constitute an operation section for rolling aluminum coils. The operation section is divided into two groups. The two groups of operation sections are arranged on the production line from top to bottom. The working rolls 101 of the two groups of operation sections are arranged against each other. In each group of operation sections, the support roll 100 and the corresponding working roll 101 are arranged against each other, and the support roll 100 drives the corresponding working roll 101 to rotate. Figure 1 As shown, the support roller 100 in the upper working section rotates clockwise, which drives the corresponding working roller 101 to rotate counterclockwise, while the support roller 100 in the lower working section rotates counterclockwise, which drives the corresponding working roller 101 to rotate clockwise. The oil spraying device 103 is arranged on the feeding side of the working section and corresponds to the corresponding working roller 101. The oil spraying device 103 is used to spray lubricating oil on the working roller 101. The aluminum strip 102 is transmitted and rolled through the working rollers 101 of the two groups of working sections. The operation mode and installation mode of the two groups of working sections are the operation and installation modes of the rolling rollers in the aluminum coil cold rolling equipment in the prior art, which will not be described in detail here.

[0023] The roller cleaning system of the aluminum coil cold rolling equipment includes two groups of cleaning components, which are arranged on the side where the aluminum strip 102 is fed, and one cleaning component is arranged corresponding to one support roller 100. The cleaning components include a scraper 1 and a purge air knife 2. The scraper 1 is arranged obliquely relative to the support roller 100 and a gap is reserved between the scraper 1 and the support roller 100. The scraper 1 is a polyurethane rubber plate, and the scraper 1 is inclined in the direction away from the support roller 100. The distance between the end of the scraper 1 closer to the support roller 100 and the gap between the support roller 100 is 5-10mm. Preferably, the distance of the aforementioned gap is 8mm. The purge air knife 2 is arranged on the side of the scraper 1 away from the working roller 101 and the purge air knife 2 is located between the scraper 1 and the support roller 100.

[0024] When the roll cleaning system of the aluminum coil cold rolling equipment is used, during the rotation of the support roller 100, the scraper 1 can scrape off the thicker lubricating oil on the support roller 100 due to the gap between the scraper 1 and the support roller 100, and the remaining lubricating oil can be cleaned from the support roller 100 by the purge air knife 2. In the prior art, the rubber plate is also set at an angle corresponding to a support roller 100. Since the temperature of the support roller 100 is relatively low, the lubricating oil is easy to condense when it adheres to the support roller 100. The setting of the rubber plate can scrape off the condensed or uncondensed lubricating oil to prevent the condensed lubricating oil from adhering to the working roller 101. However, the rubber plate in the prior art is pressed against the roller surface of the support roller 100. It can be seen that the scraper 1 in the utility model does not contact the roller surface of the support roller 100, but under the joint action of the scraper 1 and the purge air knife 2, the lubricating oil on the support roller 100 can be cleaned, thereby ultimately reducing the lubricating oil on the roller surface of the working roller 101.

[0025] In this embodiment, a suction port 11 is provided on the oil scraper 1. Figure 2 The suction port 11 is opened at one end of the scraper plate 1 facing the support roller 100 , and the suction port 11 passes through the end of the scraper plate 1 and the side of the scraper plate 1 facing away from the support roller 100 .

[0026] The cleaning assembly also includes a debris extraction channel 3, an extraction pump 4 and a recovery box 5. One end of the debris extraction channel 3 is connected to the suction port 11, and specifically, one end of the debris extraction channel 3 is connected to the opening of the suction port 11 on the side away from the support roller 100. The extraction pump 4 is installed on the debris extraction channel 3, and the recovery box 5 is connected to the end of the debris extraction channel 3 away from the scraper 1. When the support roller 100 rotates, the scraper 1 can scrape the lubricating oil on the support roller 100, and after being pumped by the extraction pump 4, the scraped lubricating oil and the lubricating oil blown off by the purge air knife 2 enter the recovery box 5 from the debris extraction channel 3 to be recovered, thereby reducing the possibility of the scraped lubricating oil falling onto the aluminum strip 102.

[0027] In the present embodiment, the debris extraction channel 3 includes a funnel-shaped chip inlet 31 and a funnel-shaped chip outlet 32. The wide end of the funnel-shaped chip inlet 31 is connected to the suction port 11, the extraction pump 4 is connected to the narrow end of the funnel-shaped chip inlet 31 and the narrow end of the funnel-shaped chip outlet 32, and the recovery box 5 is connected to the wide end of the funnel-shaped chip outlet 32. The extraction pump 4 adopts a liquid delivery pump in the prior art, and its installation and use are well known to those skilled in the art, and will not be repeated here. The structure of the funnel-shaped chip inlet 31 and the funnel-shaped chip outlet 32 ​​and the connection method thereof with the extraction pump 4 make the funnel-shaped chip inlet 31, the funnel-shaped chip outlet 32 ​​and the extraction pump 4 form a venturi tube as a whole, which can speed up the extraction pump 4 to pump the scraped lubricating oil to the recovery box 5.

[0028] In this embodiment, the recovery box 5 includes a shell 51 and a recovery box 52. The shell 51 is connected and communicated with the wide end of the funnel-shaped chip outlet 32. A storage space is provided in the shell 51. The storage space passes through one end of the shell 51. The shell 51 is provided with a swing door 511 corresponding to the storage space. The recovery box 52 is placed in the storage space. When the recovery box 52 is full, the operator can open the swing door 511 to take out and replace the recovery box 52.

[0029] In this embodiment, the cleaning assembly further includes a discharge purge air knife 6, which is disposed on one side of the aluminum strip 102 and corresponds to the contact position between the working roll 101 and the aluminum strip 102. The discharge purge air knife 6 and the purge air knife 2 are both prior art and will not be described in detail herein. The discharge purge air knife 6 can purge the lubricating oil on the working roll 101 and the aluminum strip 102 when the aluminum strip 102 is discharged, mainly to blow the lubricating oil away from the aluminum strip 102.

[0030] It can be understood that the material of the oil scraper plate 1 is not limited to the polyurethane rubber plate in this embodiment. In other embodiments, the oil scraper plate 1 can be made of other materials.

[0031] The above description is a detailed description of the preferred feasible embodiment of the utility model, but the embodiment is not used to limit the scope of the patent application of the utility model. All equivalent changes or modified changes completed under the technical spirit suggested by the utility model should fall within the patent scope covered by the utility model.

Claims

1. A roll cleaning system for aluminum coil cold rolling equipment, characterized in that: The invention comprises two groups of cleaning components, wherein the two groups of cleaning components are arranged on one side of the aluminum strip (102) for feeding, and one cleaning component is arranged corresponding to one supporting roller (100); the cleaning components comprise an oil scraper (1) and a purge air knife (2), wherein the oil scraper (1) is arranged obliquely relative to the supporting roller (100) and a gap is reserved between the oil scraper (1) and the supporting roller (100), and the purge air knife (2) is arranged on the side of the oil scraper (1) away from the working roller (101) and the purge air knife (2) is located between the oil scraper (1) and the supporting roller (100).

2. The roll cleaning system of the aluminum coil cold rolling equipment according to claim 1, characterized in that: The scraper plate (1) is provided with a suction port (11); the cleaning assembly further comprises a debris extraction channel (3), an extraction pump (4) and a recovery box (5); one end of the debris extraction channel (3) is connected to the suction port (11); the extraction pump (4) is installed on the debris extraction channel (3); and the recovery box (5) is connected to one end of the debris extraction channel (3) which is away from the scraper plate (1).

3. The roll cleaning system of the aluminum coil cold rolling equipment according to claim 2, characterized in that: The chip extraction channel (3) comprises a funnel-shaped chip inlet (31) and a funnel-shaped chip outlet (32); the wide end of the funnel-shaped chip inlet (31) is connected to the suction port (11); the extraction pump (4) is connected to the narrow end of the funnel-shaped chip inlet (31) and the narrow end of the funnel-shaped chip outlet (32); and the recovery box (5) is connected to the wide end of the funnel-shaped chip outlet (32).

4. The roll cleaning system of the aluminum coil cold rolling equipment according to claim 3, characterized in that: The recovery box body (5) comprises an outer shell (51) and a recovery box (52); the outer shell (51) is connected to the wide end of the funnel-shaped chip outlet (32); a receiving space is provided in the outer shell (51); the receiving space passes through one end of the outer shell (51); the outer shell (51) is provided with a swing door (511) corresponding to the receiving space; the recovery box (52) is placed in the receiving space.

5. The roll cleaning system of the aluminum coil cold rolling equipment according to claim 1, characterized in that: The cleaning assembly further comprises a discharge purge air knife (6), wherein the discharge purge air knife (6) is arranged on one side of the discharge of the aluminum strip (102) and is arranged corresponding to the contact position between the working roller (101) and the aluminum strip (102).

6. The roll cleaning system of the aluminum coil cold rolling equipment according to claim 1, characterized in that: The distance of the gap between the scraper plate (1) and the support roller (100) is 5-10 mm.

7. The roll cleaning system of the aluminum coil cold rolling equipment according to claim 1, characterized in that: The oil scraper (1) is a polyurethane rubber plate.

Images