Water scraping plate assembly and finishing mill
By setting up a thermal insulation layer covering the working section on the wiper, the problem of adhesive evaporation in the wiper during long-term baking is solved, the material falls off, extends the service life and improves the quality of the strip.
Patent Information
- Application Number
- CN202420140227.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-19
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-01-19
AI Technical Summary
During long-term baking of wiper, the adhesive of ultra-polymer material will evaporate, causing the material to fall off in large areas and affect the quality of the strip.
A heat insulation layer is provided on one side of the wiper to cover the working section to reduce the heat transferred by the high-temperature strip, thereby reducing the risk of adhesive volatility.
It effectively prevents the wiper material from falling off, extends the service life, and improves the quality of the strip.
Smart Images
Figure CN222957177U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of metallurgical industry, in particular to a water scraping plate assembly and a finishing mill. Background Art
[0002] The water scraping plate near the strip steel at the entrance of the finishing mill is a device used to isolate the heat of the strip steel to ensure that the rolling lubricant can normally adhere to the surface of the work roll. At the same time, the water scraping plate can prevent the strip steel from flying up and penetrating into the rolling mill during the threading process, causing steel piling.
[0003] In the related art, in order to avoid scratching the work roll by the water scraping plate, the end of the water scraping plate close to the work roll is made of ultra-high molecular weight material, and the other parts can be made of metal. Since the strip steel has a high temperature, the water scraping plate on the side close to the strip steel will be heated for a long time, and long-term baking will cause the adhesive in the part of the water scraping plate made of ultra-high molecular weight material to volatilize, resulting in large-area shedding of the material of the water scraping plate, which seriously affects the quality of the strip steel and even breaks the strip steel, causing steel piling. Summary of the Utility Model
[0004] This application provides a water scraping plate assembly and a finishing mill, which to a certain extent solves the technical problem that long-term baking in the related art will cause the adhesive in the water scraping plate to volatilize.
[0005] In a first aspect, an embodiment of this application provides a water scraping plate assembly, including:
[0006] A water scraping plate, one end of which has a working section made of ultra-high molecular weight material, and the end of the working section has a scraping surface for contacting the work roll;
[0007] A heat insulation layer, fixedly arranged on one side of the water scraping plate, the heat insulation layer covers the working section, and a plurality of openings are arranged at intervals on one side of the heat insulation layer.
[0008] In some embodiments, the heat insulation layer is a stainless steel heat insulation layer.
[0009] In some embodiments, the water scraping plate assembly further includes a plurality of first connecting bolts, and the heat insulation layer is connected to the water scraping plate through the first connecting bolts.
[0010] In some embodiments, the first connecting bolts are arranged on the side of the heat insulation layer far from the openings.
[0011] In some embodiments, the scraping surface is inclined towards the other end of the water scraping plate.
[0012] In some embodiments, the inclination angle of the scraping surface is 60° - 75°.
[0013] In some embodiments, the wiper blade assembly further includes an extension block disposed on a side of the wiper blade away from the heat insulation layer, and one end of the extension block has an extension surface which is flush with the wiping surface.
[0014] In some embodiments, the thickness of the wiper blade is 35 mm to 40 mm.
[0015] In a second aspect, an embodiment of the present application provides a finishing mill, including a finishing mill frame and the wiper blade assembly as described above, and the heat insulation layer is disposed between the wiper blade and the finishing mill frame.
[0016] In some embodiments, the finishing mill further includes a second connecting bolt, and the heat insulation layer is connected to the finishing mill frame through the second connecting bolt.
[0017] The beneficial effects of the present application are as follows:
[0018] For the wiper blade assembly and the finishing mill provided by the present application, since a heat insulation layer is provided on one side of the wiper blade and the heat insulation layer covers the working section, that is, the heat insulation layer can insulate the working section, reducing the heat transferred from the high-temperature strip steel to the working section, thereby improving the technical problem of the volatilization of the adhesive in the working section of the wiper blade in the related art, avoiding the large-area shedding of the material of the wiper blade and seriously affecting the strip steel quality, and ensuring the service life of the wiper blade; since a plurality of openings are spaced apart on one side of the heat insulation layer, the degree of deformation caused by stress change after the heat insulation layer is heated can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention.
[0020] Figure 1 It is a schematic structural diagram of the wiper blade assembly provided by an embodiment of the present application.
[0021] Figure 2 For Figure 1 It is a schematic structural diagram of the middle guard plate.
[0022] DESCRIPTION OF THE REFERENCE NUMERALS:
[0023] 100 - wiper blade assembly, 110 - wiper blade, 111 - working section, 112 - wiping surface, 120 - heat insulation layer, 121 - opening, 130 - extension block, 131 - extension surface. DETAILED DESCRIPTION
[0024] 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 of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.
[0025] It should be noted that all directional indications in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If this specific posture changes, the directional indication will also change accordingly.
[0026] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0027] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0028] The finishing mill includes a finishing mill frame, a cylinder, a water spraying member, a water scraping plate, a work roll, and a strip steel. The water scraping plate is rotatably arranged on the finishing mill frame, and the water spraying member is also arranged on the finishing mill frame for spraying cooling water on the work roll to cool the work roll. The cylinder and the work roll are respectively arranged on both sides of the water scraping plate, and the cylinder can drive the water scraping plate to swing forward so that the water scraping plate contacts the surface of the work roll, thereby preventing the cooling water sprayed by the water spraying member from contacting the strip steel.
[0029] In the related art, in order to prevent the wiper blade from scratching the work roll, the end of the wiper blade close to the work roll is made of ultra-high molecular weight material, and the other parts can be made of metal. Since the strip steel has a high temperature, the wiper blade on the side close to the strip steel will be heated for a long time, and the long-term baking will cause the adhesive in the part of the wiper blade made of ultra-high molecular weight material to volatilize, resulting in large-area shedding of the material of the wiper blade, thus seriously affecting the quality of the strip steel.
[0030] In order to improve the above technical problems to a certain extent, the embodiments of the present application provide a wiper blade assembly and a finishing mill, which can insulate the wiper blade and reduce the heat transferred from the high-temperature strip steel to the wiper blade, thereby improving the technical problem of the volatilization of the adhesive in the working section of the wiper blade in the related art and ensuring the service life of the wiper blade.
[0031] Next, the embodiments of the present application will be described with reference to the accompanying drawings:
[0032] The embodiments of the present application provide a wiper blade assembly 100, including a wiper blade 110 and a heat insulation layer 120. One end of the wiper blade 110 has a working section 111 made of ultra-high molecular weight material, and the end of the working section 111 has a wiping surface 112 for contacting the work roll. The working section 111 is the part of the wiper blade 110 close to the work roll. The working section 111 is made of ultra-high molecular weight material to avoid scratching the work roll. The wiping surface 112 contacts the work roll, so as to achieve water sealing and prevent the cooling water sprayed by the water spraying member from contacting the strip steel.
[0033] The heat insulation layer 120 is fixedly arranged on one side of the wiper blade 110, and the heat insulation layer 120 covers the working section 111, that is, the heat insulation layer 120 can extend out of the working section 111 or just be flush with the working section 111, so as to comprehensively protect the working section 111. A plurality of openings 121 are arranged at intervals on one side of the heat insulation layer 120, so as to reduce the degree of deformation of the heat insulation layer 120 caused by stress change after being heated.
[0034] For a wiper blade assembly 100 provided by the present application, since a heat insulation layer 120 is arranged on one side of the wiper blade 110 and the heat insulation layer 120 covers the working section 111, that is, the heat insulation layer 120 can insulate the working section 111 and reduce the heat transferred from the high-temperature strip steel to the working section 111, thereby improving the technical problem of the volatilization of the adhesive in the working section 111 of the wiper blade 110 in the related art, avoiding large-area shedding of the material of the wiper blade 110 and seriously affecting the quality of the strip steel, and ensuring the service life of the wiper blade 110; since a plurality of openings 121 are arranged at intervals on one side of the heat insulation layer 120, the degree of deformation of the heat insulation layer 120 caused by stress change after being heated can be reduced.
[0035] In some embodiments, the number of openings 121 on the heat insulation layer 120 can be set to 5-8, and the plurality of openings 121 are arranged at equal intervals.
[0036] In some embodiments, the heat insulation layer 120 is a stainless steel heat insulation layer 120. Of course, the heat insulation layer 120 can also be made of other heat insulation materials, and there is no limitation thereto.
[0037] In some embodiments, the wiper blade assembly 100 further includes a plurality of first connecting bolts, and the heat insulation layer 120 is connected to the wiper blade 110 through the first connecting bolts to facilitate installation and disassembly.
[0038] The first connecting bolts are disposed on a side of the heat insulation layer 120 far away from the opening 121, so that the first connecting bolts do not interfere with the opening 121.
[0039] In some embodiments, the wiper surface 112 is inclined toward the other end of the wiper blade 110, that is, the wiper surface 112 is an inclined surface, so as to increase the contact area between the wiper surface 112 and the working roll, thereby improving the water sealing ability of the wiper blade 110.
[0040] In some embodiments, in order to improve the service life of the working roll and reduce the replacement frequency of the working roll, the inclination angle of the wiper surface 112 can be 60° - 75°.
[0041] During the long-term use of the working roll, due to wear, the diameter will become smaller and smaller. When the wiper surface 112 contacts the circumferential surface of the working roll, in order to ensure the contact area between the wiper surface 112 and the working roll to ensure the water sealing effect of the wiper blade 110, the wiper surface 112 needs to be tangent to the circumferential surface of the working roll. Therefore, it can be understood that as the inclination angle of the wiper surface 112 changes, the contact position between the wiper surface 112 and the working roll will also change. For the convenience of description, the position on the working roll that contacts the wiper blade 110 can be defined as the contact surface. In the prior art, the inclination angle of the wiper surface 112 is relatively small (about 17°), and the contact surface with the working roll is close to the bottom of the working roll. The wiper blade 110 is driven by a cylinder to contact the working roll, but the stroke of the cylinder is limited. After a long time, as the diameter of the working roll becomes smaller and smaller, that is, the distance between the wiper surface 112 and the contact surface becomes farther and farther, the driving of the cylinder may not be able to make the wiper surface 112 contact the contact surface, and at this time, the working roll must be replaced.
[0042] After the inclination angle of the water scraping surface 112 in the embodiment of the present application is increased to 60°-75°, the position of the contact surface moves upward, changing from being close to the bottom of the working roll to being close to the side of the working roll. The side of the working roll itself is closer to the water scraping surface 112, so the cylinder stroke required for the water scraping surface 112 to contact the contact surface is smaller. Therefore, the service life of the working roll can be extended and the replacement frequency of the working roll can be reduced. For example, in the prior art, the contact position between the water scraping surface 112 and the working roll is close to the bottom of the working roll. When the diameter of the working roll is reduced to n, within the stroke range of the cylinder, the water scraping surface 112 can no longer contact the contact position of the working roll, and at this time, the working roll needs to be replaced; in the present application, the contact position between the water scraping surface 112 and the working roll is close to the side of the working roll. When the diameter of the working roll is reduced to m, within the stroke range of the cylinder, the water scraping surface 112 can no longer contact the contact position of the working roll, and at this time, the working roll needs to be replaced, where m is less than n.
[0043] In some embodiments, since the angle between the water scraping surface 112 and the horizontal plane is increased, and the thickness of the water scraping plate 110 remains unchanged, the area of the water scraping surface 112 is reduced. Therefore, in order to increase the contact area between the water scraping plate 110 and the working roll and improve the water sealing performance of the water scraping plate 110, the water scraping plate assembly 100 further includes an extension block 130. The extension block 130 is arranged on the side of the water scraping plate 110 away from the heat insulation layer 120, and one end of the extension block 130 has an extension surface 131, and the extension surface 131 is arranged flush with the water scraping surface 112. Therefore, it can be understood that the extension surface 131 is the extended part of the water scraping surface 112, so the arrangement of the extension surface 131 increases the area of the water scraping surface 112, and further increases the contact area between the water scraping plate 110 and the working roll.
[0044] The extension block 130 can be triangular, and the inclination angle of one of the inclined surfaces of the extension block 130 is the same as the inclination angle of the water scraping plate 110, and this inclined surface is the extension surface 131 of the extension block 130. The extension block 130 and the water scraping plate 110 can be integrally arranged.
[0045] In some embodiments, the thickness of the water scraping plate 110 can be 35 mm - 40 mm to improve the structural strength of the water scraping plate 110, thereby further improving the service life of the water scraping plate 110.
[0046] Based on the same inventive concept, the embodiment of the present application also provides a finishing mill, including a finishing mill frame and the above-mentioned water scraping plate assembly 100, and the heat insulation layer 120 is arranged between the water scraping plate 110 and the finishing mill frame, so that the heat insulation layer 120 can isolate the strip steel and the water scraping plate 110. The beneficial effects of this finishing mill are the same as those of the above-mentioned water scraping plate assembly 100, and will not be elaborated here.
[0047] In some embodiments, the finishing mill further includes a second connecting bolt, and the heat insulation layer 120 is connected to the finishing mill stand through the second connecting bolt. The first connecting bolt and the second connecting bolt may be the same one, that is, a single connecting bolt is used to connect the wiper 110, the heat insulation layer 120 and the finishing mill stand. Of course, the working section 111 of the wiper 110 and the heat insulation layer 120 extend out of the finishing mill stand to contact the work roll.
[0048] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications once they know the basic creative concept. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.
[0049] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.
Claims
1. A wiper blade assembly, characterized in that: include: A wiper blade, one end of which has a working section made of ultra-high molecular material, and the end of the working section has a wiper surface for contacting the working roller; A heat insulation layer is fixedly arranged on one side of the wiper blade, the heat insulation layer covers the working section, and a plurality of openings are arranged at intervals on one side of the heat insulation layer.
2. The wiper blade assembly according to claim 1, characterized in that: The heat insulation layer is a stainless steel heat insulation layer.
3. The wiper blade assembly according to claim 1, characterized in that: The wiper blade assembly further includes a plurality of first connecting bolts, and the heat insulation layer is connected to the wiper blade via the first connecting bolts.
4. The wiper blade assembly according to claim 3, characterized in that: The first connecting bolt is arranged on a side of the heat insulation layer away from the opening.
5. The wiper blade assembly according to any one of claims 1 to 4, characterized in that: The wiper surface is arranged inclined toward the other end of the wiper plate.
6. The wiper blade assembly according to claim 5, characterized in that: The inclination angle of the wiper surface is 60° to 75°.
7. The wiper blade assembly according to claim 5, characterized in that: The wiper assembly further comprises an extension block, which is arranged on a side of the wiper away from the heat insulation layer, and one end of the extension block has an extension surface, which is arranged flush with the wiper surface.
8. The wiper blade assembly according to claim 1, characterized in that: The thickness of the wiper blade is 35 mm to 40 mm.
9. A finishing mill, characterized in that: It comprises a finishing mill frame and a wiper assembly as described in any one of claims 1 to 8, and the heat insulation layer is arranged between the wiper and the finishing mill frame.
10. The finishing mill according to claim 9, characterized in that The finishing mill further comprises a second connecting bolt, and the heat insulation layer is connected to the finishing mill frame via the second connecting bolt.