CN110665981B - Cold rolling oil removing device and method for stainless steel pipe - Google Patents
Cold rolling oil removing device and method for stainless steel pipe Download PDFInfo
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- CN110665981B CN110665981B CN201911054282.2A CN201911054282A CN110665981B CN 110665981 B CN110665981 B CN 110665981B CN 201911054282 A CN201911054282 A CN 201911054282A CN 110665981 B CN110665981 B CN 110665981B
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- steel pipe
- cold rolling
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- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 190
- 239000010935 stainless steel Substances 0.000 title claims abstract description 190
- 238000005097 cold rolling Methods 0.000 title claims abstract description 108
- 238000000034 method Methods 0.000 title claims abstract description 56
- 239000010731 rolling oil Substances 0.000 title claims abstract description 7
- 239000003921 oil Substances 0.000 claims description 224
- 238000007790 scraping Methods 0.000 claims description 177
- 238000007789 sealing Methods 0.000 claims description 97
- 238000005238 degreasing Methods 0.000 claims description 39
- 239000010687 lubricating oil Substances 0.000 claims description 33
- 229910000831 Steel Inorganic materials 0.000 claims description 24
- 239000010959 steel Substances 0.000 claims description 24
- 230000000694 effects Effects 0.000 claims description 16
- 238000003825 pressing Methods 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 10
- 238000007664 blowing Methods 0.000 claims description 8
- 206010061258 Joint lock Diseases 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 238000009785 tube rolling Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0269—Cleaning
- B21B45/0275—Cleaning devices
- B21B45/0278—Cleaning devices removing liquids
- B21B45/0284—Cleaning devices removing liquids removing lubricants
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a stainless steel pipe cold rolling oil removing device and method, wherein the stainless steel pipe cold rolling oil removing process and the stainless steel pipe cold rolling process are simultaneously carried out.
Description
Technical Field
The invention relates to a cold rolling oil removing device and method for a stainless steel pipe, belonging to the technical field of stainless steel pipe molding engineering.
Background
The rolling oil inside and outside the tube plays a role in lubrication in the stainless steel tube cold rolling process, but the inner and outer surfaces of the stainless steel tube are all oil after rolling is finished, so that the rolling site is easy to be polluted by oil, the inner and outer surfaces of the stainless steel tube are not easy to remove oil, the existing oil removing method mainly comprises oil scraping, the actual oil scraping effect is poor, and how to clean the inner and outer surfaces of the stainless steel tube in the stainless steel tube cold rolling process becomes a problem to be solved.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the cold rolling and degreasing device and method for the stainless steel tube, solves the problems of lubricating oil pollution and oil-carrying discharging of the stainless steel tube in the cold rolling process of the stainless steel tube, and creates favorable conditions for improving the degreasing effect of the stainless steel tube in the next step.
The invention is realized by the following technical scheme:
the utility model provides a cold rolling deoiling device of nonrust steel pipe, includes outer oil scraping component, interior oil scraping component, nonrust steel pipe, cold rolling plug and high-pressure air source device, be provided with cold rolling plug in the nonrust steel pipe, the nonrust steel pipe outside is provided with the outer oil scraping component of a plurality of parallel arrangements, outer oil scraping component sets up in the exit that the cold rolling process of nonrust steel pipe was accomplished, just the central line of outer oil scraping component is on same horizontal central line with nonrust steel pipe, is provided with the interior oil scraping component of a plurality of parallel arrangements in the nonrust steel pipe, interior oil scraping component connects cold rolling plug front end, outer oil scraping component connects high-pressure air source device.
The high-pressure air source device comprises a high-pressure air source, the high-pressure air source is connected with a high-pressure hose, the high-pressure hose is respectively connected with the external oil scraping component and one end of the stainless steel pipe through a first air inlet electromagnetic valve and a second air inlet electromagnetic valve, the first air inlet electromagnetic valve and the second air inlet electromagnetic valve comprise an inlet and two outlets, and the inlets are connected with the high-pressure air source;
the outer oil scraping component comprises outer oil scraping sealing rings, the inner parts of the outer oil scraping sealing rings are hollow, a stretched outer pressing spring ring is arranged in the hollow inner cavity of the outer oil scraping sealing rings, a protecting ring for protecting the pressing spring ring and provided with a lock catch is arranged on the outer side of the outer pressing spring ring, an airflow guiding ring is arranged between every two outer oil scraping sealing rings which are arranged in parallel, a plurality of outer oil scraping component covers an annular gas protecting cover, the inner walls of the gas protecting covers are matched with the outer oil scraping sealing rings and the airflow guiding rings in shape, the outer oil scraping sealing rings and the airflow guiding rings are tightly clamped, a high-pressure air inlet is arranged on the upper part of the gas protecting cover, and a high-pressure air outlet is arranged at the bottom of the gas protecting cover and is connected with a high-pressure air source through a first air inlet electromagnetic valve; the outer oil scraping sealing ring is tightly connected with the gas protection outer cover through an external structural part; the external structural member is provided with a connector device, and is connected with a second air inlet electromagnetic valve through the connector device;
the connector device comprises a connector lock ring, a connector lock rod, a rotary air pipe connector and a connector socket, wherein the connector lock ring is internally detachably connected with the connector lock rod in a clamping mode, the connector lock rod is connected with the rotary air pipe connector, the connector socket is arranged on the rotary air pipe connector, and the connector socket is positioned on the inner side of the connector lock rod; the rotary air pipe joint is connected with a first air outlet of the second air inlet electromagnetic valve; the first air outlet of the second air inlet electromagnetic valve is connected with a first high-pressure hose, the second air outlet of the second air inlet electromagnetic valve is connected with a second high-pressure hose, and the first high-pressure hose and the second high-pressure hose are both high-pressure air source hoses.
The cross section of the external compression spring ring is of an outer square and inner circular structure and is made of wear-resistant and oil-resistant rubber.
The outer structural member is a horizontal fixing member, the gas protection outer cover, n outer oil scraping sealing rings and n-1 air flow guiding rings are overlapped in the gas protection outer cover and are fastened together, and the outer structural member is fixed on a finished stainless steel discharging area foundation structure; an external structural part at the inlet side of the external oil scraping component is provided with an leading-in horn mouth.
The inner oil scraping component comprises a plurality of parallel side-by-side inner oil scraping sealing rings, the inner wall of each inner oil scraping sealing ring is provided with a compressed inner pressurizing spring, the outer walls of the inner oil scraping sealing rings are provided with an inner oil scraping sealing sleeve, the inner oil scraping sealing sleeves are in close contact with stainless steel pipes, the center of each inner oil scraping sealing ring is also provided with an inner oil scraping pull rod, the inner oil scraping pull rods are connected with clamping traction rods, and the clamping traction rods are connected with cold rolling core rods through clamps.
The inner oil scraping sealing sleeve is made of wear-resistant and oil-resistant rubber, and the inner oil scraping sealing ring is made of oil-resistant rubber.
The cold rolling deoiling device for the stainless steel pipe further comprises a linkage steel wire, wherein the linkage steel wire is arranged on the structural support and is matched with a linkage roller, a high-pressure air source hose is connected with the linkage steel wire through a plurality of hanging buckles, a drawing hanging ring is further arranged on the high-pressure air source hose, and a drawing hook is matched with the drawing hanging ring. The linkage steel wire can be a steel wire, and the hanging buckle can be a circular ring.
The stainless steel tube cold rolling degreasing process comprises the steps of stainless steel tube cold rolling degreasing and inner surface degreasing, wherein the stainless steel tube cold rolling degreasing component comprises stainless steel tube outer surface degreasing and inner surface degreasing, and the stainless steel tube outer surface degreasing of the stainless steel tube cold rolling degreasing process adopts a method of scraping oil on the stainless steel tube outer surface and blowing oil under the assistance of high-pressure gas; the oil removal on the inner surface of the stainless steel pipe adopts the method of oil scraping on the inner surface of the stainless steel pipe and the auxiliary oil removal by pressurizing the inner surface with high-pressure gas.
The method specifically comprises the following steps:
when a finished stainless steel pipe extends out of a cold rolling area and the front end of a cold rolling core rod to an inner oil scraping component, automatically sleeving a clamping traction rod and the inner oil scraping component which are connected with the front end of the cold rolling core rod into the stainless steel pipe, and applying pressure to the inner wall of the stainless steel pipe through inner oil scraping sealing sleeves by m inner oil scraping sealing rings so as to reduce leakage of cold rolling lubricating oil to the rear side of the wear-resistant and oil-resistant rubber oil scraping sealing sleeves, and starting oil scraping operation in the stainless steel pipe along with forward pushing and rotation of the stainless steel pipe;
step two, when the finished stainless steel pipe extends out of the cold rolling area to the outer oil scraping component, the finished stainless steel pipe is inserted into the gas protection outer cover through the leading-in horn mouth on the external structural part, at the moment, a high-pressure gas source enters from the high-pressure gas inlet at the upper side of the gas protection outer cover, oil removal, dirt removal and blowing are carried out on the integral component formed by overlapping n outer oil scraping sealing rings and n-1 gas flow guide rings in the gas protection outer cover and the end part of the finished stainless steel pipe, and blowing gas flows out from the high-pressure gas outlet at the lower part of the gas protection outer cover;
after inserting n outer oil scraping sealing rings and n-1 integral parts formed by overlapping air flow guiding rings into the end part of the finished stainless steel pipe, pressurizing and oil scraping the outer surface of the finished stainless steel pipe by the n outer oil scraping sealing rings so as to reduce leakage of cold rolling lubricating oil from an outlet between the outer oil scraping sealing rings one by one, enabling a high-pressure air source to enter from a high-pressure air inlet at the top of the air protection outer cover, enabling the high-pressure air source to flow to a high-pressure air outlet at the lower part of the air protection outer cover along an air flow path in the air flow guiding rings, forming negative pressure when the high-speed flowing air flow passes through a path regulated by the air flow guiding rings, taking the cold rolling lubricating oil leaked between the outer oil scraping sealing rings to the lower part of the air protection outer cover, and enabling the cold rolling lubricating oil to flow out of the air protection outer cover along with the air flow;
and fourthly, when the end part of the finished stainless steel pipe extends out of the outer oil scraping component, the stainless steel pipe is cold rolled and pushed forward to rotate and insert into an external high-pressure hose, then the external high-pressure hose is separated from a joint lock catch ring arranged on an external structural member, the finished stainless steel pipe drives the external high-pressure hose to move forward, high-pressure gas in the external high-pressure hose is introduced into the stainless steel pipe, the inner oil scraping component seals an outlet of the high-pressure gas in the stainless steel pipe in an oil scraping operation, a high-pressure area is formed in the stainless steel pipe, high-pressure gas flows out from a gap between an inner oil scraping sealing sleeve and the inner wall of the stainless steel pipe to the other side, the flowing direction of the gas flow is opposite to the leakage direction of cold rolled lubricating oil, and the oil scraping effect is ensured. The oil scraping effect of the abrasion-resistant and oil-resistant rubber oil scraping sealing sleeve with the air flow assistance is better.
Compared with the prior art, the invention has the following beneficial effects:
1. the continuous pushing and rotating process of the finished stainless steel tube in the cold rolling process of the stainless steel tube is utilized, and the relative motion of the cold rolling core rod in the stainless steel tube and the finished stainless steel tube in the cold rolling process of the stainless steel tube is utilized, so that the increase of process components is less;
2. the method comprises the steps that springs for increasing oil scraping pressure are added on sealing rings for scraping oil on the inner surface and the outer surface of a stainless steel pipe, the ring-shaped springs are stretched in advance, the ring-shaped springs are compressed in advance, lock catch protection rings are added on the springs, or oil scraping sealing sleeves are used for protecting sealing rings for adding the springs;
3. a plurality of sealing rings with springs are adopted on the inner surface and the outer surface of the stainless steel pipe to strengthen the oil scraping effect;
4. aiming at cold rolling lubricating oil which leaks into the space between the oil scraping sealing rings on the outer surface of the stainless steel pipe through the oil scraping sealing rings, the method is adopted that a gas protection outer cover is added outside the oil scraping sealing rings, a method of high-speed air flow flushing and guiding out the cold rolling lubricating oil between the oil scraping sealing rings is adopted, and an air flow guide ring is added between the oil scraping sealing rings, so that the cold rolling lubricating oil which leaks into the oil scraping sealing rings is discharged from the lower part of the gas protection outer cover under the guidance of the air flow and the air flow guide ring, and the oil removing effect is improved;
5. aiming at the problem that oil is difficult to discharge because the oil scraping effect is increased by a plurality of groups of sealing rings with springs can be increased on the inner surface of the stainless steel pipe, a method for increasing the leakage difficulty of cold rolling lubricating oil by placing a plurality of groups of sealing rings with springs into the same wear-resistant and oil-resistant rubber oil scraping sealing sleeve is adopted, meanwhile, a high-pressure area is built in the stainless steel pipe, the leakage degree of the cold rolling lubricating oil is further prevented, the oil removing process effect is improved, meanwhile, the building of the high-pressure area in the stainless steel pipe reduces the pulling force of oil removing components on the inner surface of the stainless steel pipe on the cold rolling core rod, even beneficial pushing force is generated on the cold rolling core rod, and the fatigue fracture probability of the cold rolling core rod is reduced.
Drawings
FIG. 1 is a schematic diagram of the process flow of the cold rolling degreasing method for stainless steel pipes;
FIG. 2 is a schematic plan view of the cold rolling degreasing method of the stainless steel tube of the present invention;
FIG. 3 is a schematic view of the structure of the inner and outer wiper members of the stainless steel tube of the present invention;
FIG. 4 is a schematic diagram of the structure of the oil scraping component in the stainless steel pipe;
FIG. 5 is a schematic view of the inner wiper seal and inner wiper seal ring of the present invention;
FIG. 6 is a schematic view of an airflow guiding ring according to the present invention;
FIG. 7 is a schematic view of a high pressure air source device according to the present invention.
In the figure, 1: an outer oil scraping member; 1-1, an outer oil scraping sealing ring; 1-11, externally pressing a spring; 1-2 air flow guide ring: 1-3: a gas-shielded enclosure; 1-4: an outer structural member; 1-5, a high-pressure air inlet; 1-6, a high-pressure air outlet; 2-7: a high pressure air source; 2-8: the first air inlet electromagnetic valve 2 is an inner oil scraping component; 2-1, an inner oil scraping sealing sleeve; 2-2 parts of an inner oil scraping sealing ring and 2-21 parts of an inner pressurizing spring; 2-3, an inner oil scraping pull rod; 2-31, front gear; 2-32, a rear gear; 4, stainless steel pipes, 4-1, stainless steel rolling mill; 4-2, stainless steel rolling discharging area; 4-3, cold rolling the core rod; 5: a joint device; 5-1: a second air intake solenoid valve; 5-2: a joint lock catch ring; 5-3: a connector locking bar; 5-4: a rotary air pipe joint; 5-5: drawing out the hook; 5-6: the hanging ring is pulled out; 5-7: a linkage steel wire; 5-8: a linkage roller; 5-9: the high-pressure hose is connected with the linkage steel wire; 5-10 parts of joint bracket; 5-11 joint sockets; 5-12: a first air outlet of the second air inlet electromagnetic valve; 5-13: a second air outlet of the second air inlet electromagnetic valve; the method comprises the steps of carrying out a first treatment on the surface of the 5-14: high-pressure air supply hose wire rope hanging buckle, 5-15: first high-pressure hose, 5-16: a second high pressure hose.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments, but the scope of the invention is not limited to these embodiments, and all changes and equivalents that do not depart from the spirit of the invention are intended to be included in the scope of the invention.
The stainless steel tube cold rolling degreasing process is combined with a stainless steel tube cold rolling process, when the stainless steel tube is rolled into a finished product from an outlet of a stainless steel cold rolling mill, lubricating oil added in the rolling process is arranged inside and outside the finished product stainless steel tube, the lubricating oil is not convenient to transfer among different processes, oil stains are caused to have influence on the environment completely without treatment or improper treatment, and the degreasing effect of the next degreasing process can be improved by adopting the degreasing process;
the oil removal of the stainless steel tube is completed during the rolling of a stainless steel tube by a stainless steel cold rolling mill, the oil resistant rubber is adopted to scrape oil inside and outside the stainless steel tube in the prior oil removal technology, the actual oil scraping effect is poor, and a lot of cold rolling lubricating oil is remained inside and outside the oil removed stainless steel tube, so that the transfer between the working procedures and the next degreasing working procedure of the stainless steel tube are greatly influenced.
The invention also utilizes the stainless steel cold rolling process to finish, mainly can utilize and have other processes in the stainless steel cold rolling process discharge area, and enter stainless steel tube of stainless steel tube discharge area to push and rotate intermittently, there are cold rolling core rods in the stainless steel tube can utilize in the stainless steel tube rolling process, namely finished stainless steel tube and cold rolling core rod in it have relative movement each other, thus the stainless steel tube outer surface degreasing component is installed on the discharge side of the stainless steel rolling mill, the stainless steel tube inner surface degreasing component is connected to cold rolling core rod, the central line of stainless steel tube outer surface degreasing component and stainless steel tube inner surface degreasing component is on the central line of the stainless steel tube;
in order to solve the problem that oil scraping is not clean in the existing oil removal of the stainless steel pipe, a certain gap is reserved between an original oil scraping rubber ring and the inner surface and the outer surface of the pipe, and a lot of cold rolling lubricating oil still adheres to the inner surface and the outer surface of the stainless steel pipe.
The outer surface of the stainless steel pipe is provided with the air flow guide ring 1-2 which is added between the outer oil scraping seal rings 1-1, so that high-speed air flow is guided to form negative pressure to discharge redundant cold rolling lubricating oil between the outer oil scraping seal rings 1-1, and meanwhile, the high-speed air flow has a certain blowing effect on the outer surface of the stainless steel pipe, so that the actual oil removing effect is improved; the specific implementation of the discharge of the redundant cold rolling lubricating oil on the outer surface of the stainless steel pipe is as follows: the outer oil scraping sealing ring 1-1 added with the external pressure spring 1-11 and the air flow guiding ring 1-2 are overlapped together and then placed in the air protection outer cover 1-3, so that a specific local small-range air flow sweeping area is formed;
the method for continuously pressurizing and blowing air on the inner surface of the stainless steel tube by adopting a sealed space comprises the following specific steps: forming a longer sealing space between the inner surface of the stainless steel pipe and the gap between the inner oil scraping sealing rings 2-2, preventing cold rolling lubricating oil from entering the gap between the inner oil scraping sealing rings 2-2, keeping the cold rolling lubricating oil in the gap with stronger pressure on the circumference of the inner surface of the stainless steel pipe, and then blocking or discharging the cold rolling lubricating oil in the high-pressure space by using high-pressure air flow; the specific implementation of the discharge of the redundant cold rolling lubricating oil on the inner surface of the stainless steel pipe is that an inner oil scraping sealing ring 2-2 added with an inner pressurizing spring 2-21 is placed in an inner oil scraping sealing sleeve 2-1, and the inner oil scraping sealing sleeve is made of wear-resistant and oil-resistant rubber. Only the inner oil scraping sealing sleeve 2-1 is contacted with the inner surface of the stainless steel pipe 4 to block a passage between the cold rolling lubricating oil flowing inwards and the oil scraping sealing ring 2-2, the inner space of the finished stainless steel pipe 4 scraped by the inner oil scraping sealing sleeve 2-1 is filled with high-pressure gas to form a local high-pressure area, the permeability of the cold rolling lubricating oil to the high-pressure area is increased, more cold rolling lubricating oil can be pushed to the cold rolling area of the stainless steel pipe along with the reverse osmosis flow of the high-pressure gas, so that the oil removing effect of the stainless steel pipe is improved, and a better basic condition is provided for the next degreasing process; meanwhile, the establishment of a high-pressure area in the stainless steel pipe creates conditions for reducing fatigue fracture probability of the cold-rolled core rod.
FIG. 1 is a schematic diagram of a stainless steel tube cold rolling degreasing process flow; when the finished stainless steel pipe extends out of the cold rolling area and the front end of the cold rolling core rod 4-3 to the inner oil scraping component, a clamping traction rod and the inner oil scraping component which are connected with the front end of the cold rolling core rod are automatically sleeved in the stainless steel pipe, and the m inner oil scraping sealing rings 2-2 apply pressure to the inner wall of the stainless steel pipe 4 through the inner oil scraping sealing sleeve 2-1 so as to reduce leakage of cold rolling lubricating oil to the rear side of the inner oil scraping sealing sleeve 2-1, and oil scraping operation is started in the stainless steel pipe along with forward pushing and rotation of the stainless steel pipe 4;
the outer structural member 1-4 is provided with an inlet bell mouth 1-7 which is positioned at the inlet of the outer oil scraping component. When the finished stainless steel pipe extends out of the cold rolling area to the outer oil scraping component, the finished stainless steel pipe is inserted into the gas protection outer cover 1-3 through the leading-in horn mouth on the outer structural part 1-4, at the moment, the high-pressure gas source 2-7 enters from the high-pressure gas inlet 1-5 on the upper side of the gas protection outer cover 1-3, oil removal and pollution removal purging are carried out on the integral component and the end part of the finished stainless steel pipe, wherein the integral component is formed by overlapping n outer oil scraping sealing rings and n-1 gas flow guiding rings in the gas protection outer cover, and purging gas flows are blown out from the high-pressure gas outlet on the lower part of the gas protection outer cover;
after the end part of the finished stainless steel pipe is inserted into an integral part formed by overlapping n outer oil scraping sealing rings and n-1 air flow guiding rings, the n outer oil scraping sealing rings carry out pressurized oil scraping on the outer surface of the finished stainless steel pipe so as to reduce leakage of cold rolling lubricating oil from an outlet between the outer oil scraping sealing rings one by one, a high-pressure air source enters from a high-pressure air inlet 1-5 at the top of the air protecting outer cover and flows to a high-pressure air outlet 1-6 at the lower part of the air protecting outer cover along an air flow path in the air flow guiding ring 1-2, negative pressure is formed when the high-speed flowing air passes through a path regulated by the air flow guiding ring 1-2, and cold rolling lubricating oil leaked between the outer oil scraping sealing rings 1-1 is carried out to the lower part of the air protecting outer cover 1-3 and flows out of the air protecting outer cover along with the air flow;
when the end part of the finished stainless steel pipe extends out of the outer oil scraping component 1, the stainless steel pipe is cold rolled and pushed forward to rotate and inserted into a first high-pressure hose 5-15 at an outlet of an external high-pressure air source, then the external first high-pressure hose is separated from a joint lock ring 5-2 arranged on an external structural part 1-4, the finished stainless steel pipe drives the external first high-pressure hose 5-15 to move forward, high-pressure air in the external first high-pressure hose is introduced into the stainless steel pipe 4, the inner oil scraping component 2 seals the outlet of the high-pressure air in the stainless steel pipe in an oil scraping operation, a high-pressure area is formed in the stainless steel pipe, the high-pressure air flows out from a gap between the inner oil scraping sealing sleeve 2-1 and the inner wall of the stainless steel pipe 4 to the other side, and the flowing direction of the air is opposite to the leakage direction of cold rolled lubricating oil, so that the oil scraping effect is ensured. The inner oil scraping sealing sleeve 2-1 with the air flow assistance has better oil scraping effect.
FIG. 2 is a schematic plan view of a cold rolling degreasing process for stainless steel;
the cold rolling degreasing process of the stainless steel tube mainly comprises the following steps: the stainless steel pipe cold rolling mill comprises an outer oil scraping component 1 positioned on the discharging side of the stainless steel pipe cold rolling mill, an inner oil scraping component 2 positioned in a finished stainless steel pipe and an external high-pressure hose communicated with a high-pressure air source 2-7, wherein the outer oil scraping component 1 is connected with a cold rolling mandrel 4-3 of the stainless steel pipe cold rolling mill, and the high-pressure air source is respectively connected with one end of the steel pipe outer oil scraping component 1 and one end of the stainless steel pipe 4 through the external high-pressure hose. The connection of the external high-pressure hose can be mechanical and automatic, but the drawing back of the external high-pressure hose needs PLC automatic control, the air source connection outlet of the external high-pressure hose is opposite to and closely abutted against the outlet of the external oil scraping component 1, the central lines of the two outlets are on the same straight line, the external structural component 1-4 on the outlet side of the external oil scraping component 1 is provided with the joint socket 5-11 of the high-pressure air pipe which is in butt joint with the external high-pressure hose, and the joint socket is used for locking the external high-pressure hose so as to complete the sleeving connection of the external high-pressure hose and the stainless steel finished pipe, thereby establishing a high-pressure area in the stainless steel pipe. The high pressure hose comprises a first high pressure hose 5-15 and a second high pressure hose 5-16. When the system detects that the stainless steel pipe reaches the front terminal of the discharging area, the second air inlet electromagnetic valve 5-1 switches a high-pressure air source from the first high-pressure hose 5-15 to the second high-pressure hose 5-16, and the first high-pressure hose is pulled by the linkage steel wire 5-7 pulled by the pull-out hanging ring 5-6, the pull-out hook 5-5 and the second high-pressure hose 5-16, and is pulled out from the end of the finished stainless steel pipe and returns to operation;
when the finished stainless steel pipe 4 extends out of the outlet of the outer oil scraping component 1, the air source connecting outlet of the outer first high-pressure hose 5-15 is sleeved into the end part of the outlet of the finished stainless steel pipe by means of the locking force on the high-pressure air pipe connector on the outer structural component 1-4, the locking force can break loose, and after the outer first high-pressure hose breaks loose, the locking force of the air source connecting outlet is broken loose, the outer first high-pressure hose is driven to move forwards, so that a high-pressure area in the finished stainless steel pipe is conveniently built; the first external high-pressure hose slides on a steel wire parallel to the center line of the finished stainless steel tube, so that the requirement of the moving process on laying margin is met.
FIG. 3 is a schematic view of the stainless steel tube inner and outer wiper members;
the outer oil scraping component is arranged at an outlet of the stainless steel pipe after cold rolling, the center line of an oil removing ring of the outer oil scraping component and the center line of a finished stainless steel pipe are on the same horizontal center line, the outer oil scraping sealing ring 1-1 can be an abrasion-resistant and oil-resistant rubber oil scraping sealing ring which is of an outer square and inner round structure, an outer pressing spring ring 1-1 which is arranged after stretching is arranged in a round groove of the same center line of the outer round outside of the outer oil scraping sealing ring, the outer pressing spring ring 1-1 can be a torsion spring, and a protection ring which protects the outer pressing spring ring and is provided with a lock catch can be arranged outside the outer pressing spring ring. n-1 airflow guide rings 1-2 are added between the n outer oil scraping seal rings 1-1, the airflow guide rings can guide the high-speed flowing airflow path, and negative pressure is formed to take away cold rolling lubricating oil leaked between the outer oil scraping seal rings. The internal shape of the gas protection outer cover is similar to that of an integral part formed by overlapping n outer oil scraping sealing rings and n-1 air flow guide rings, only 2 positions are different, and the 2 positions are different in that: the first different point is that the diameter of the front and rear inlet and outlet of the gas-protecting outer cover on the central line of the oil removing ring is slightly larger than the diameter of the oil removing ring, the first different point is that the gas-protecting outer cover is provided with an air inlet space and an air inlet pipe at the upper part, and the gas-protecting outer cover is provided with an oil outlet space and an oil gas outlet of oil and exhaust gas at the lower part;
the outer structural member is a horizontal fixing piece in the oil removing component on the outer surface of the stainless steel pipe, the gas protection outer cover 1-3, n outer oil scraping sealing rings overlapped in the gas protection outer cover and n-1 air flow guiding rings are fastened together, and the outer structural member is fixed on the foundation structure of the finished stainless steel discharging area; an external structural part at the inlet side of the external oil scraping component is provided with an leading-in horn mouth;
the inner oil scraping component is arranged at the front end of a cold rolling core rod 4-3 in the cold rolling process of the stainless steel pipe and is positioned on the inner central line of the finished stainless steel pipe, the clamping traction rod is connected with the front end of the cold rolling core rod, the inner oil scraping sealing ring 2-2 and the inner oil scraping sealing sleeve 2-1 can be oil-resistant rubber pressure sealing rings and wear-resistant and oil-resistant rubber oil scraping sealing sleeves, the inner oil scraping sealing sleeve 2-1 is tightly sleeved on m inner oil scraping sealing rings 2-2, and a clamp positioned on the clamping traction rod clamps the inner oil scraping sealing rings and the inner oil scraping sealing sleeves on the clamping traction rod;
a steel wire is arranged on one side structure of a stainless steel pipe cold rolling process discharging area parallel to the inner central line of a finished stainless steel pipe, an external high-pressure hose is hung on the steel wire through a circular ring, a joint support 5-10 is arranged at a connection point 5-9 between the high-pressure hose and the steel wire, an air source connection outlet of an external first high-pressure hose 5-15 is tightly sleeved on the outer side of a pipe orifice of the finished stainless steel pipe, the external first high-pressure hose can move forwards along a linkage steel wire 5-7 under the drive of the finished stainless steel pipe, and the fixed end of the other side of the external first high-pressure hose is positioned at the middle part or one side end part of the stainless steel pipe cold rolling process discharging area and has the length which can meet the moving requirement of the finished stainless steel pipe.
The present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The cold rolling oil removing device for the stainless steel pipe is characterized by comprising an outer oil scraping component, an inner oil scraping component, a stainless steel pipe, a cold rolling core rod and a high-pressure air source device, wherein the cold rolling core rod is arranged in the stainless steel pipe;
the outer oil scraping component comprises outer oil scraping sealing rings, the inner parts of the outer oil scraping sealing rings are hollow, a stretched outer compression spring ring is arranged in an inner cavity of the outer oil scraping sealing rings, an air flow guide ring is arranged between every two outer oil scraping sealing rings which are arranged in parallel, a plurality of outer oil scraping component covers an annular air protection outer cover, the inner walls of the air protection outer covers are matched with the outer oil scraping sealing rings and the air flow guide rings in shape, the outer oil scraping sealing rings and the air flow guide rings are tightly clamped, a high-pressure air inlet is arranged at the upper part of the air protection outer cover, a high-pressure air outlet is arranged at the bottom of the air protection outer cover, and the high-pressure air inlet is connected with a high-pressure air source through a first air inlet electromagnetic valve; the outer oil scraping sealing ring is tightly connected with the gas protection outer cover through an external structural part; the external structural member is provided with a connector device, and is connected with a second air inlet electromagnetic valve through the connector device;
the connector device comprises a connector lock ring, a connector lock rod, a rotary air pipe connector and a connector socket, wherein the connector lock ring is internally detachably connected with the connector lock rod in a clamping mode, the connector lock rod is connected with the rotary air pipe connector, the connector socket is arranged on the rotary air pipe connector, and the connector socket is positioned on the inner side of the connector lock rod; the rotary air pipe joint is connected with a first air outlet of the second air inlet electromagnetic valve.
2. The cold rolling and degreasing device for the stainless steel pipe according to claim 1, wherein the high-pressure air source device comprises a high-pressure air source, the high-pressure air source is connected with a high-pressure hose, the high-pressure hose is respectively connected with the external degreasing component and one end of the stainless steel pipe through a first air inlet electromagnetic valve and a second air inlet electromagnetic valve, the first air inlet electromagnetic valve and the second air inlet electromagnetic valve respectively comprise an inlet and two outlets, and the inlets are respectively connected with the high-pressure air source.
3. The cold rolling and degreasing device for the stainless steel tube according to claim 1, wherein the cross section of the external pressing spring ring is of an external square and internal circular structure and is made of wear-resistant and oil-resistant rubber.
4. The cold rolling and degreasing device for stainless steel pipes according to claim 1, wherein the outer structural member is a horizontal fixing member, the gas protection outer cover, n outer oil scraping sealing rings and n-1 air flow guiding rings overlapped in the gas protection outer cover are fastened together, and the outer structural member is fixed on a finished stainless steel discharging area foundation structure; an external structural part at the inlet side of the external oil scraping component is provided with an leading-in horn mouth.
5. The cold rolling and degreasing device for the stainless steel tube according to claim 1, wherein the inner oil scraping component comprises a plurality of parallel side-by-side inner oil scraping sealing rings, the inner wall of each inner oil scraping sealing ring is provided with a compressed inner pressurizing spring, the outer walls of the inner oil scraping sealing rings are provided with an inner oil scraping sealing sleeve, the inner oil scraping sealing sleeves are tightly contacted with the stainless steel tube, the center of each inner oil scraping sealing ring is further provided with an inner oil scraping pull rod, and the inner oil scraping pull rod is connected with the cold rolling core rod.
6. The cold rolling and degreasing device for the stainless steel tube according to claim 5, wherein the inner oil scraping sealing sleeve is made of wear-resistant and oil-resistant rubber, and the inner oil scraping sealing ring is made of oil-resistant rubber.
7. The cold rolling and degreasing device for the stainless steel pipe, according to claim 1, is characterized by further comprising a linkage steel wire, wherein the linkage steel wire is arranged on the structural support and is matched with a linkage roller, a high-pressure air source hose is connected with the linkage steel wire through a plurality of hanging buckles, a drawing hanging ring is further arranged on the high-pressure air source hose, and a drawing hook is matched with the drawing hanging ring.
8. A method of cold rolling a stainless steel tube to remove oil using the apparatus of any one of claims 1 to 7, characterized by: the stainless steel pipe cold rolling degreasing process comprises the steps of stainless steel pipe cold rolling, wherein the stainless steel pipe cold rolling degreasing component comprises the steps of degreasing the outer surface of a stainless steel pipe and degreasing the inner surface of the stainless steel pipe, and the stainless steel pipe outer surface degreasing of the stainless steel pipe cold rolling degreasing process adopts a method of scraping oil on the outer surface of the stainless steel pipe and blowing oil under the assistance of high-pressure gas; the oil removal on the inner surface of the stainless steel pipe adopts the method of oil scraping on the inner surface of the stainless steel pipe and the auxiliary oil removal by pressurizing the inner surface with high-pressure gas.
9. The cold rolling degreasing method for the stainless steel tube, as claimed in claim 8, is characterized by comprising the following steps:
step one, when a finished stainless steel pipe extends out of a cold rolling area and the front end of a cold rolling core rod to an inner oil scraping component, automatically sleeving a clamping traction rod and the inner oil scraping component which are connected with the front end of the cold rolling core rod into the stainless steel pipe, applying pressure to the inner wall of the stainless steel pipe through an inner oil scraping seal sleeve by m inner oil scraping seal rings, and starting oil scraping operation in the stainless steel pipe along with forward pushing and rotation of the stainless steel pipe;
step two, when the finished stainless steel pipe extends out of the cold rolling area to the outer oil scraping component, the finished stainless steel pipe is inserted into the gas protection outer cover through the leading-in horn mouth on the external structural part, at the moment, a high-pressure gas source enters from the high-pressure gas inlet at the upper side of the gas protection outer cover, oil removal, dirt removal and blowing are carried out on the integral component formed by overlapping n outer oil scraping sealing rings and n-1 gas flow guide rings in the gas protection outer cover and the end part of the finished stainless steel pipe, and blowing gas flows out from the high-pressure gas outlet at the lower part of the gas protection outer cover;
after inserting n outer oil scraping sealing rings and n-1 integral parts formed by overlapping air flow guiding rings into the end part of the finished stainless steel pipe, pressurizing and oil scraping the outer surface of the finished stainless steel pipe by the n outer oil scraping sealing rings so as to reduce leakage of cold rolling lubricating oil from an outlet between the outer oil scraping sealing rings one by one, enabling a high-pressure air source to enter from a high-pressure air inlet at the top of the air protection outer cover, enabling the high-pressure air source to flow to a high-pressure air outlet at the lower part of the air protection outer cover along an air flow path in the air flow guiding rings, forming negative pressure when the high-speed flowing air flow passes through a path regulated by the air flow guiding rings, taking the cold rolling lubricating oil leaked between the outer oil scraping sealing rings to the lower part of the air protection outer cover, and enabling the cold rolling lubricating oil to flow out of the air protection outer cover along with the air flow;
and fourthly, when the end part of the finished stainless steel pipe extends out of the outer oil scraping component, the stainless steel pipe is cold rolled and pushed forward to rotate and insert into an external high-pressure hose, then the external high-pressure hose is separated from a joint lock catch ring arranged on an external structural member, the finished stainless steel pipe drives the external high-pressure hose to move forward, high-pressure gas in the external high-pressure hose is introduced into the stainless steel pipe, the inner oil scraping component seals an outlet of the high-pressure gas in the stainless steel pipe in an oil scraping operation, a high-pressure area is formed in the stainless steel pipe, high-pressure gas flows out from a gap between an inner oil scraping sealing sleeve and the inner wall of the stainless steel pipe to the other side, the flowing direction of the gas flow is opposite to the leakage direction of cold rolled lubricating oil, and the oil scraping effect is ensured.
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| CN201911054282.2A CN110665981B (en) | 2019-10-31 | 2019-10-31 | Cold rolling oil removing device and method for stainless steel pipe |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110722008B (en) * | 2019-10-31 | 2024-04-05 | 太原中金天威不锈钢管股份有限公司 | Device and method for degreasing cold-rolled seamless stainless steel tube and pre-degreasing outer surface of tube |
| CN111515261A (en) * | 2020-05-07 | 2020-08-11 | 李二华 | Stainless steel pipe rolling oil removing device |
| WO2022082419A1 (en) * | 2020-10-19 | 2022-04-28 | 如皋驰久不锈钢管厂 | Intelligent cleaning device for oil stains of stainless steel pipe |
| CN112404146A (en) * | 2020-11-01 | 2021-02-26 | 高小艳 | Cold rolling deoiling device of nonrust steel pipe |
| CN116876248B (en) * | 2023-09-04 | 2023-11-03 | 江苏锐金钢丝绳索具有限公司 | Locking device for end connection of steel wire rope |
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