Oil spot preventing device at outlet end of foil rolling mill
By designing the device of the upper deflector, the lower deflector and the negative pressure cover at the outlet end of the foil rolling mill, the negative pressure extraction and the deflector are used to divert the flow, the problem of oil mist aggregation into oil dripping on the surface of the aluminum foil is solved, and the effect of preventing the formation of oil spots and reducing the aggregation of oil mist is achieved.
Patent Information
- Application Number
- CN202421509334.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-06-28
AI Technical Summary
The oil mist at the outlet end of the existing foil rolling mill aggregates oil droplets on the thickness gauge and falls on the surface of the aluminum foil to form large oil spots, which affects the performance of the finished aluminum foil and the oil mist is prone to agglomeration.
A device including an upper deflector, a lower deflector and a negative pressure cover is designed to extract oil mist using a negative pressure chamber and a negative pressure pump. The deflector guides oil droplets to prevent oil from falling on the surface of the aluminum foil, and at the same time, ambient air is extracted to reduce oil mist aggregation.
Effectively prevent oil from dripping onto the surface of the aluminum foil to form oil spots, maintain the performance of the finished aluminum foil, reduce oil mist aggregation, and be easy to use.
Smart Images
Figure CN223113820U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of foil rolling mills, in particular to an anti-oil spot device at the outlet end of a foil rolling mill. Background Technique
[0002] During the aluminum foil rolling process, rolling oil will be thrown out from between the two rolling rolls at the outlet end of the rolling mill. Secondly, a large amount of frictional and deformation heat will be generated when the rolling rolls come into contact with the aluminum foil during the rolling process, reaching the evaporation point of the rolling oil and forming an oil mist. There will be an X-ray thickness gauge at the center position on the outlet side of the rolling mill to monitor the thickness change of the aluminum foil in real time.
[0003] In order to prevent the oil mist from falling on the aluminum foil, an additional air nozzle will be set on the outlet side of the aluminum foil rolling mill for purging to disperse the oil droplets and form an oil mist that volatilizes upwards. However, during the volatilization process of the oil mist, as the ambient temperature decreases and it comes into contact with the thickness gauge, the oil mist will condense on the thickness gauge to form small oil droplets, and then drip from the lower side of the thickness gauge onto the surface of the aluminum foil at the outlet of the rolling mill to form large oil spots, affecting the performance of the finished aluminum foil.
[0004] Therefore, this application provides an anti-oil spot device at the outlet end of a foil rolling mill to solve the above problems. Content of the Utility Model
[0005] The technical problem to be solved by the utility model is to overcome the existing defects, provide an anti-oil spot device at the outlet end of a foil rolling mill, which has a simple structure, can divert and discharge the oil droplets condensed on the thickness gauge, negative pressure hood, and upper deflector, avoid the oil droplets from falling on the aluminum foil surface to form large oil spots and affect the performance of the finished aluminum foil, and can also extract the air around the outlet of the rolling mill to reduce the condensation of the oil mist, and is convenient to use, and can effectively solve the problems in the background technique.
[0006] To achieve the above purpose, the utility model provides the following technical solution: An anti-oil spot device at the outlet end of a foil rolling mill includes an upper deflector, a lower deflector, and a negative pressure hood that can be clamped on the top of the thickness gauge. A negative pressure chamber communicating with its bottom is opened inside the negative pressure hood. One end of the negative pressure hood close to the external foil rolling mill housing is provided with a negative pressure pipe connected to an external negative pressure pump. The lower deflector is inclined and arranged on the upper half of the thickness gauge and can divert the oil droplets to the driving side of the foil rolling mill housing. The lower deflector is installed in the middle of the thickness gauge and is located on the side of the foil material for diverting the oil droplets accumulated at the bottom of the upper deflector.
[0007] As a preferred technical solution of the utility model, the side of the part of the negative pressure hood located above the foil material is provided with an open mouth, and an external deflector is arranged at the open mouth part of the negative pressure hood.
[0008] As a preferred technical solution of the utility model, an internal deflector is provided at the lower end of the negative pressure chamber near its negative pressure pipe.
[0009] As a preferred technical solution of the present utility model, the width of the negative pressure hood is smaller than the width of the upper diversion plate.
[0010] As a preferred technical solution of the present utility model, the width of the lower diversion plate is larger than the width of the upper diversion plate.
[0011] As a preferred technical solution of the present utility model, the top of the negative pressure hood is of a triangular structure, so that the oil droplets on its top can fall onto the upper diversion plate.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] The device for preventing oil stains at the outlet end of the foil rolling mill according to the example of the present utility model has a simple structure, can divert and discharge the oil droplets formed by condensation on the thickness gauge, the negative pressure hood, and the upper diversion plate, avoid the oil droplets falling onto the surface of the aluminum foil to form large oil stains and affect the performance of the finished aluminum foil, and can also extract the air around the outlet of the rolling mill to reduce the condensation of oil mist, and is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a schematic structural diagram of the present utility model;
[0015] Figure 2 is Figure 1 a cross-sectional structural diagram of
[0016] Figure 3 is Figure 1 a right-view structural diagram of
[0017] Figure 4 is a schematic structural diagram of the present utility model when in use.
[0018] In the figure: 1 negative pressure hood, 2 negative pressure chamber, 3 outer diversion plate, 4 inner diversion plate, 5 negative pressure pipe, 6 upper diversion plate, 7 lower diversion plate. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0020] Please refer to Figures 1-4, the present utility model provides a technical solution: an anti-oil stain device at the outlet end of a foil rolling mill, which includes an upper guide plate 6, a lower guide plate 7, and a negative pressure cover 1 that can be stuck on the top of a thickness gauge. A negative pressure cavity 2 communicating with its bottom is opened inside the negative pressure cover 1. One end of the negative pressure cover 1 close to the external foil rolling mill housing is provided with a negative pressure pipe 5 connected to an external negative pressure pump. Connect the negative pressure pipe 5 to an external negative pressure device, so as to generate negative pressure inside the negative pressure cavity 2. A part of the upwardly volatilized oil mist directly enters the negative pressure cavity 2. For the oil mist entering the negative pressure cavity 2, a part is extracted by the external negative pressure device, and the other part contacts the inner wall of the negative pressure cover 1 during movement and condenses into oil droplets, which then drip downward onto the upper guide plate 6 and flow out from the side of the rolling mill housing transmission along the upper guide plate 6, without splashing onto the foil surface of the aluminum foil transmission side edge.
[0021] The lower guide plate 7 is inclined and arranged on the upper half of the thickness gauge, and can guide the oil droplets to the transmission side of the foil rolling mill housing. The lower guide plate 7 is installed in the middle of the thickness gauge and is located on the side of the foil material, and is used to guide the oil droplets aggregated at the bottom of the upper guide plate 6. A part of the oil mist condenses into small oil droplets when contacting the outer wall of the negative pressure cover 1, the thickness gauge, and the upper guide plate 6 during volatilization. The oil droplets on the negative pressure cover 1 slide down along its outer wall and drip onto the upper guide plate 6. The upper guide plate 6 guides the oil droplets on its upper surface to flow out from the side of the rolling mill housing transmission, without splashing onto the foil surface of the aluminum foil transmission side edge; the small oil droplets condensed on the lower side of the upper guide plate 6 flow along the bottom of the upper guide plate 6 and finally flow onto the lower guide plate 7 along the outer wall of the thickness gauge, and finally flow out from the side of the rolling mill housing transmission, without splashing onto the foil surface of the aluminum foil transmission side edge.
[0022] Further, the side of the negative pressure cover 1 located above the foil material is provided with an open mouth, and an outer guide plate 3 is arranged at the open mouth part of the negative pressure cover 1, which can extract the surrounding air, so as to extract the oil mist in the surrounding environment.
[0023] Further, an inner guide plate 4 is provided at the lower end of the part of the negative pressure cavity 2 close to its negative pressure pipe 5. The oil droplets condensed inside the negative pressure cover 1 can drip downward onto the upper guide plate 6 along the inner guide plate 4 and the inner wall of the negative pressure cover 1.
[0024] Further, the width of the negative pressure cover 1 is smaller than the width of the upper guide plate 6, so that the oil droplets on the negative pressure cover 1 can drip onto the upper guide plate 6.
[0025] Further, the width of the lower guide plate 7 is larger than the width of the upper guide plate 6, which is convenient for collecting and guiding the oil droplets dripping from the bottom of the upper guide plate 6.
[0026] Further, the top of the negative pressure cover 1 is of a triangular structure, so that the oil droplets on its top can fall onto the upper guide plate 6.
[0027] During use:
[0028] Connect the negative pressure pipe 5 to an external negative pressure device, so as to generate negative pressure inside the negative pressure chamber 2;
[0029] A part of the oil mist that volatilizes upward directly enters the inside of the negative pressure chamber 2. Another part of the oil mist condenses into small oil droplets when it comes into contact with the outer wall of the negative pressure hood 1, the thickness gauge, and the upper deflector 6 during the volatilization process. The oil droplets on the negative pressure hood 1 slide down along its outer wall and drip onto the upper deflector 6. The upper deflector 6 deflects the oil droplets on its upper surface, so that they flow out from the side of the driving side of the rolling mill housing and will not splash onto the foil surface of the driving side of the aluminum foil;
[0030] The small oil droplets condensed on the lower side of the upper deflector 6 flow along the bottom of the upper deflector 6 and finally flow along the outer wall of the thickness gauge to the lower deflector 7 and finally flow out from the side of the driving side of the rolling mill housing and will not splash onto the foil surface of the driving side of the aluminum foil;
[0031] For the oil mist that enters the negative pressure chamber 2, a part is extracted by the external negative pressure device, and another part condenses into oil droplets when it comes into contact with the inner wall of the negative pressure hood 1 during the movement, and drips down along the inner deflector 4 and the inner wall of the negative pressure hood 1 onto the upper deflector 6 and flows out from the side of the driving side of the rolling mill housing along the upper deflector 6 and will not splash onto the foil surface of the driving side of the aluminum foil.
[0032] The structure of the present utility model is simple. It can deflect and discharge the oil droplets formed by condensation on the thickness gauge, the negative pressure hood 1, and the upper deflector 6, avoiding the oil droplets falling on the aluminum foil surface to form large oil stains and affecting the performance of the finished aluminum foil. It can also extract the air around the outlet of the rolling mill to reduce the condensation of oil mist and is convenient to use.
[0033] The parts not disclosed in the present utility model are all prior arts, and their specific structures, materials, and working principles will not be elaborated. Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. An anti-oil stain device at the outlet end of a foil rolling mill, comprising an upper guide plate (6), a lower guide plate (7) and a negative pressure hood (1) capable of being clamped on the top of a thickness gauge, characterized in that: A negative pressure chamber (2) communicating with the bottom thereof is provided inside the negative pressure hood (1). A negative pressure pipe (5) connected to an external negative pressure pump is provided at one end of the negative pressure hood (1) close to the external foil rolling mill housing. The lower deflector (7) is inclined and arranged on the upper half of the thickness gauge and can deflect the oil droplets to the drive side of the foil rolling mill housing. The lower deflector (7) is installed in the middle of the thickness gauge and is located on the side of the foil, and is used for deflecting the oil droplets accumulated at the bottom of the upper deflector (6).
2. The anti-oil stain device at the outlet end of the foil rolling mill according to claim 1, characterized in that: The side of the part of the negative pressure hood (1) located above the foil is provided with an open mouth, and an external deflector (3) is provided at the open mouth part of the negative pressure hood (1).
3. The anti-oil stain device at the outlet end of the foil rolling mill according to claim 1, wherein: An internal deflector (4) is provided at the lower end of the part of the negative pressure chamber (2) close to its negative pressure pipe (5).
4. The anti-oil stain device at the outlet end of the foil rolling mill according to claim 1, characterized in that: The width of the negative pressure hood (1) is smaller than the width of the upper deflector (6).
5. The anti-oil stain device at the outlet end of the foil rolling mill according to claim 1, wherein: The width of the lower deflector (7) is larger than the width of the upper deflector (6).
6. The anti-oil stain device at the outlet end of the foil rolling mill according to claim 4, characterized in that: The top of the negative pressure hood (1) is of a triangular structure, so that the oil droplets at the top can fall onto the upper deflector (6).