Automatic oil injection and recovery system of rolling machine
By designing an automatic oil spraying and recycling system on the rolling mill, the problems of uneven lubrication and waste oil treatment were solved, realizing the efficient utilization of rolling oil and automated production, thereby improving production efficiency and reducing costs.
Patent Information
- Application Number
- CN202422944047.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-11-29
AI Technical Summary
The existing rolling mill lacks an automatic lubrication system, resulting in uneven lubrication. Manual spraying is inefficient, and waste oil cleaning affects production efficiency and increases production costs.
Design an automatic oil spraying and recycling system for a rolling mill, including an oil spraying device, a recycling device, and a control device. Through the combination of an oil pump, a nozzle, a collection box, an oil filter, and a controller, the automatic spraying and recycling of rolling oil is realized, and the operation of the control system is monitored and controlled by a liquid level sensor.
It increased the utilization rate of rolling oil, reduced manual intervention, improved production efficiency, reduced production costs, and achieved automated production.
Smart Images
Figure CN223775089U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of metal rolling, in particular to a rolling mill automatic oil injection and recovery system. BACKGROUND
[0002] The rolling mill is the equipment for realizing the metal rolling process, and is widely used in the current metal sheet and strip manufacturers, and when rolling the metal below medium thickness, it is often necessary to spray the rolling oil between the upper and lower rollers during the rolling process to lubricate, so as to reduce the friction and wear, protect the rollers and rolled pieces, improve the rolling efficiency and product quality.
[0003] The existing rolling mill does not configure the corresponding lubricating system, and the manual spraying is needed during the production process, which cannot uniformly control the spraying time and spraying amount, resulting in the decline of the lubricating effect; in addition, the used waste oil needs to be collected by another device, and when reaching a certain amount, cleaning is needed, which needs to be stopped, which not only causes waste, but also affects the production efficiency. UTILITY MODEL CONTENTS
[0004] Therefore, the utility model aims at providing a rolling mill automatic oil injection and recovery system.
[0005] A rolling mill automatic oil injection and recovery system, comprising an oil injection device, a recovery device and a control device, wherein the oil injection device comprises an oil tank, an oil pump and a plurality of spray heads, the oil pump is connected with the oil tank, and the plurality of spray heads are respectively installed between the rolling rollers of the rolling mill and connected with the oil pump; the recovery device comprises a collection tank and an oil filter machine, the collection tank is arranged below the rolling mill and connected with the oil filter machine, and the other end of the oil filter machine is connected with the oil tank; and the control device comprises a controller, which is electrically connected with the oil pump and the oil filter machine.
[0006] The rolling mill automatic oil injection and recovery system recovers and utilizes the used rolling oil through the collection tank and the oil filter machine, not only eliminates the additional collection and cleaning of waste oil, but also improves the utilization rate of the rolling oil, effectively improves the production efficiency and reduces the production cost.
[0007] Further, the oil injection device further comprises an oil path distributor, the oil path distributor is provided with a plurality of outlets, one end of the oil path distributor is connected with the oil pump, and the plurality of outlets are respectively connected with the plurality of spray heads.
[0008] Further, the oil filter machine comprises an oil inlet valve, a coarse filter, an oil pump, a fine filter and an oil outlet valve which are connected in sequence.
[0009] Further, the number of the fine filters is several, and the several fine filters are connected with the oil pump and the oil outlet valve in parallel.
[0010] Further, the control device further comprises a first liquid level sensor, which is installed in the collection tank and electrically connected with the controller.
[0011] Further, the control device further comprises a second liquid level sensor, which is installed in the oil tank and electrically connected with the controller.
[0012] Further, the first liquid level sensor and the second liquid level sensor are provided with a lower limit position, an upper limit position and a trigger line, the lower limit position is arranged at the lower limit of detection of the first liquid level sensor and the second liquid level sensor, the upper limit position is arranged at the upper limit of detection of the first liquid level sensor and the second liquid level sensor, and the trigger line is arranged between the upper limit position and the lower limit position.
[0013] Further, the collection tank is of a semi-open design, and the collection tank is provided with no top cover at the top area below the rolling roller, and is provided with a top cover at the remaining top area.
[0014] In order to better understand and implement, the present application is described in detail below in combination with the drawings. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a schematic diagram of the automatic oil spraying and recycling system of the rolling mill;
[0016] Figure 2 It is a schematic diagram of the oil filter machine of the embodiment;
[0017] Figure 3 It is a schematic diagram of the threshold of the liquid level sensor;
[0018] Figure 4 It is a schematic diagram of the control process of the oil filter machine and the oil pump.
[0019] The drawings show that: 10 is an oil tank, 20 is an oil pump, 30 is a spray head, 40 is an oil path distributor, 50 is a collection tank, 60 is an oil filter machine, 61 is an oil inlet valve, 62 is a coarse filter, 63 is an oil filter pump, 64 is a fine filter, 65 is an oil outlet valve, 70 is a controller, 81 is a first liquid level sensor, and 82 is a second liquid level sensor. DETAILED DESCRIPTION
[0020] Please refer to Figure 1The application discloses a rolling mill automatic oil spraying and recycling system, which comprises an oil spraying device, a recycling device and a control device.
[0021] The oil spraying device comprises an oil tank 10, an oil pump 20 and a plurality of spraying heads 30. The oil tank 10 is used for containing rolling oil. The oil pump 20 is connected with the oil tank 10 and is used for pumping the rolling oil in the oil tank 10 and conveying the rolling oil to the spraying heads 30. As an optimization, the number of the spraying heads 30 is several. The spraying heads 30 are respectively arranged at two ends of a gap between two adjacent groups of rolling mills of the rolling mill and are used for spraying the rolling oil on the rolling mills and the material. The number of the spraying heads 30 depends on the number of the rolling mills. For example, for a four-roller rolling mill, two rolling mills arranged in an upper and lower mode form a group, and the four-roller rolling mill has two groups of rolling mills. Therefore, two spraying heads 30 are arranged at two ends of the gap between the two groups of rolling mills, so that the rolling oil can be sprayed on the four rolling mills and the material. As an optimization, the oil spraying device further comprises an oil path distributor 40. One end of the oil path distributor 40 is connected with the oil pump 20, and the outlet of the oil path distributor 40 is connected with different spraying heads 30. The oil path distributor 40 is used for uniformly distributing the rolling oil output by the oil pump 20 to each spraying head 30, so that the rolling oil can be more uniformly sprayed on the rolling mills and the material.
[0022] The recycling device comprises a collecting tank 50 and an oil filter 60. The collecting tank 50 is arranged below the rolling mill and is used for collecting the rolling oil dripping from the rolling mills. As an optimization, the collecting tank 50 is designed in a semi-open mode. The top region of the collecting tank 50 below the rolling mills is provided with no top cover, and the remaining top region is provided with a top cover. In this way, the collected rolling oil can be prevented from splashing to the outside, and meanwhile, external objects can be prevented from falling into the collecting tank 50. Figure 2 The oil filter 60 is connected with the collecting tank 50 and the oil tank 10 and is used for conveying the recycled rolling oil collected in the collecting tank 50 to the oil tank 10 after filtering. As an optimization, the oil filter 60 comprises an oil inlet valve 61, a coarse filter 62, an oil filter pump 63, a fine filter 64 and an oil outlet valve 65 which are sequentially connected. The recycled rolling oil enters the oil filter 60 through the oil inlet valve 61, is preliminarily filtered through the coarse filter 62 to remove large-particle solid impurities such as metal scraps, is then conveyed to the fine filter 64 through the oil filter pump 63 to be finely filtered and is finally discharged through the oil outlet valve. As an optimization, the fine filter 64 has a plurality of fine filters which are connected in parallel with the oil filter pump 63 and the oil outlet valve 65. In this way, the rolling oil conveyed by the oil filter pump 63 is divided into a plurality of paths and is filtered in the fine filters 64, so that the fine filtering flow is increased and the filtering efficiency of the oil filter 60 is improved.
[0023] The control device comprises a controller 70. The controller 70 is electrically connected with the oil pump 20 and the oil filter 60 respectively, and controls the working state of the oil pump 20 and the oil filter 60. As preferred, a first liquid level sensor 81 is further included. The first liquid level sensor 81 is installed in the collecting tank 50 and electrically connected with the controller 70, and is used to detect the liquid level in the collecting tank 50 and feed back to the controller 70 to control the working of the oil filter 60. More preferably, a second liquid level sensor 82 is further included. The second liquid level sensor 82 is installed in the oil tank 10 and electrically connected with the controller 70, and is used to detect the liquid level in the oil tank 10 and feed back to the controller 70 to control the working of the oil pump 20.
[0024] Please refer to Figure 3 and 4 . Further, in order to more accurately control the working state of the oil pump 20 and the oil filter 60, the first liquid level sensor 81 and the second liquid level sensor 82 are provided with a lower limit, an upper limit and a trigger line. The lower limit is set at the lower limit of the detection of the liquid level sensor, the upper limit is set at the upper limit of the detection of the liquid level sensor, and the trigger line is set between the lower limit and the upper limit and is set according to the actual situation, which is not limited by the utility model, and in the embodiment, is set at 2 / 3 of the detection range of the liquid level sensor. In the working process, the first liquid level sensor 81 and the second liquid level sensor 82 detect the liquid level in the collecting tank 50 and the oil tank 10 in real time. When the liquid level in the collecting tank 50 is not higher than the lower limit, the oil filter 60 does not work, avoiding the damage of the equipment caused by the idling of the oil filter 60; when the liquid level in the collecting tank 50 is not lower than the trigger line and the liquid level in the oil tank 10 is lower than the upper limit, the oil filter 60 starts to work, and the recovered rolling oil is filtered and delivered to the oil tank 10; when the liquid level in the oil tank 10 reaches the upper limit, the oil filter 60 is closed, avoiding the overflow of the rolling oil in the oil tank 10. At the same time, when the liquid level in the oil tank 10 is not higher than the lower limit, the oil pump 20 does not work, avoiding the idling of the oil pump 20, and a prompt is sent to remind the staff to supplement the rolling oil in the oil tank 10; when the liquid level in the oil tank 10 is not lower than the trigger line, the oil pump 20 starts to work, and the rolling oil is pumped out. Further, in order to avoid the additional loss caused by the frequent start and stop of the machine, a certain start time interval can be set for the control program.
[0025] In use, a proper amount of rolling oil is added into the oil tank 10 in advance, and after the device is started, the oil pump 20 delivers the rolling oil in the oil tank 10 to the oil path distributor 40, and then the rolling oil is distributed to the spray head 30 and uniformly sprayed on the rolling mill and the incoming material. The used rolling oil drops into the collecting tank 50 below the rolling mill, is filtered by the oil filter 60 and then delivered back to the oil tank 10 for recycling. The liquid levels of the collecting tank 50 and the oil tank 10 are detected by the first liquid level sensor 81 and the second liquid level sensor 82 during the working process, and the detection results are fed back to the controller 70 to control the start and stop of the oil filter 60 and the oil pump 20, so that automatic oil spraying and recycling are realized.
[0026] Compared with the prior art, the rolling oil used is recycled by the collecting tank and the oil filter, so that the process of additional collection and cleaning of waste oil is avoided, the use rate of the rolling oil is improved, the production efficiency is effectively improved, and the production cost is reduced. The controller and the sensor are used to monitor and control the system, automatic production is realized, manual intervention is reduced, and the production efficiency and the product quality are further improved.
[0027] The terms used in the embodiments of the present application are merely for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present application. The singular forms "a", "an" and "the" used in the embodiments of the present application and the claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that "several" means two or more, unless otherwise stated. The terms "first", "second", etc. are used only to distinguish, not to describe a specific order or sequence, and cannot be understood as indicating or implying relative importance. The term "and / or" used herein means and includes any or all possible combinations of one or more associated listed items. The above description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.
[0028] The above-described embodiments only express several embodiments of the present application, which are described in detail and specifically, but should not be understood as limiting the scope of the utility model patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, and the present application also intends to include these changes and modifications.
Claims
1. A rolling mill automatic oil injection and recovery system characterized by: The oil spraying device, the recovery device and the control device are included; the oil spraying device includes an oil tank, an oil pump and a plurality of spray heads, the oil pump is connected with the oil tank, and the plurality of spray heads are respectively installed between the rolling rolls of a rolling mill and connected with the oil pump; the recovery device includes a collection tank and an oil filter machine, the collection tank is arranged below the rolling mill and connected with the oil filter machine, and the other end of the oil filter machine is connected with the oil tank; the control device includes a controller, and the controller is electrically connected with the oil pump and the oil filter machine.
2. The automatic oil injection and recovery system for rolling mills according to claim 1, characterized in that: The oil spraying device further includes an oil path distributor provided with a plurality of outlets, one end of the oil path distributor is connected with the oil pump, and the plurality of outlets are respectively connected with the plurality of spray heads.
3. The automatic oil injection and recovery system for rolling mills according to claim 1, characterized in that: The oil filter machine includes an oil inlet valve, a coarse filter, an oil pump, a fine filter and an oil outlet valve connected in sequence.
4. The automatic oiling and recovery system for rolling mills according to claim 3, characterized in that: The number of the fine filters is a plurality, and the plurality of fine filters are connected with the oil pump and the oil outlet valve in parallel.
5. The automatic oiling and recovery system for rolling mills according to claim 1, characterized in that: The control device further includes a first liquid level sensor, the first liquid level sensor is installed in the collection tank and electrically connected with the controller.
6. The automatic oiling and recovery system for rolling mills according to claim 5, characterized in that: The control device further includes a second liquid level sensor, the second liquid level sensor is installed in the oil tank and electrically connected with the controller.
7. The automatic oiling and recovery system for rolling mills according to claim 6, characterized in that: The first liquid level sensor and the second liquid level sensor are provided with a lower limit position, an upper limit position and a trigger line, the lower limit position is arranged at the lower limit of detection of the first liquid level sensor and the second liquid level sensor, the upper limit position is arranged at the upper limit of detection of the first liquid level sensor and the second liquid level sensor, and the trigger line is arranged between the upper limit position and the lower limit position.
8. The automatic oiling and recovery system for rolling mills according to claim 1, characterized in that: The collection tank is semi-openly designed, the top area of the collection tank below the rolling rolls is provided with no top cover, and the remaining top area is provided with a top cover.