Squeezing roller and mechanism for removing residual liquid on surface of strip steel

Abstract

The utility model relates to a wringing roller which comprises an upper wringing roller and a lower wringing roller, the upper wringing roller and / or the lower wringing roller are / is provided with a lifting driving mechanism, and the wringing roller is characterized in that an upper water scraping plate is arranged on the inlet side of the wringing roller; the upper water scraping plate is located above the strip steel running channel, the bottom end of the upper water scraping plate is provided with a flexible water scraping part suitable for making contact with the upper surface of strip steel, and the water scraping part is in a hollow rod shape. In addition, the utility model further provides a strip steel surface residual liquid removing mechanism adopting the wringing roller. According to the utility model, the water scraping part of the upper water scraping plate is designed into the hollow rod shape, so that the water scraping part has a certain elastic space and can be tightly attached to the surface of strip steel within a certain range, and the water scraping effect is much better than that of a flat plate type water scraping part.

Description

Technical Field

[0001] The utility model relates to a squeezing roller and a strip steel surface residual liquid removing mechanism using the squeezing roller. Background Art

[0002] Squeeze rollers are widely used in strip production. They are used in various processes, including after strip rolling, pickling, and cleaning, to remove rolling oil, pickling fluid, and cleaning fluid from the strip surface. The squeeze rollers squeeze the strip surface with their upper and lower squeeze rollers, respectively, to remove residual liquid from the strip surface. Some companies install scrapers on the squeeze rollers, located at the inlet side of the squeeze rollers, to pre-scrape off some residual liquid from the strip surface. However, flat-plate scrapers often lack reliable contact with the strip surface, affecting the scraping effect. Utility Model Content

[0003] The utility model relates to a squeezing roller and a strip steel surface residual liquid cleaning mechanism using the squeezing roller, which can at least solve some defects of the prior art.

[0004] The utility model relates to a squeezing roller, comprising an upper squeezing roller and a lower squeezing roller, wherein the upper squeezing roller and / or the lower squeezing roller are provided with a lifting drive mechanism, an upper scraper is arranged on the inlet side of the squeezing roller, the upper scraper is located above the strip running channel and has a flexible scraper portion at the bottom end suitable for contacting the upper surface of the strip, and the scraper portion is in the shape of a hollow rod.

[0005] As one of the implementation modes, the wiper portion is a round rod structure.

[0006] As one of the implementation modes, the upper wiper blade is mounted on the roller seat of the upper squeeze roller.

[0007] As one of the implementation modes, the installation position of the upper wiper plate on the roller seat of the upper squeeze roller is adjustable, and the adjustable direction is vertical.

[0008] As one of the embodiments, an inlet upper water baffle is also arranged on the inlet side of the squeezing roller, and the inlet upper water baffle is installed on the roller seat of the squeezing upper roller. The inlet upper water baffle is located on the steel incoming side of the squeezing upper roller and the plate end is close to the working roller surface of the squeezing upper roller.

[0009] As one of the embodiments, an outlet upper water baffle is also arranged on the outlet side of the squeezing roller, and the outlet upper water baffle is installed on the roller seat of the squeezing upper roller. The outlet upper water baffle is located on the steel-outlet side of the squeezing upper roller and the plate end is close to the working roller surface of the squeezing upper roller.

[0010] As one of the embodiments, the upper squeeze roller is equipped with a roller surface sealing unit, which uses a sealing rubber plate. The sealing rubber plate is located on the steel tapping side of the upper squeeze roller and the plate end contacts the working roller of the upper squeeze roller.

[0011] As one of the embodiments, an outlet lower water baffle is also arranged on the outlet side of the squeezing roller, and the outlet lower water baffle is installed on the roller seat of the squeezing lower roller. The outlet lower water baffle is located on the steel-outgoing side of the squeezing lower roller and the plate end is close to the working roller surface of the squeezing lower roller.

[0012] The utility model also relates to a strip steel surface residual liquid removal mechanism, comprising a primary squeeze roller, or multiple squeeze rollers arranged in sequence along the strip steel running direction, at least part of the squeeze rollers are the squeeze rollers described above.

[0013] The utility model has at least the following beneficial effects:

[0014] In the present invention, the wiper portion of the upper wiper plate is designed to be a hollow rod, ensuring that the wiper portion has a certain elastic space and can be in close contact with the surface of the strip steel within a certain range. The wiping effect is much better than that of a flat wiper portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 A schematic structural diagram of a squeeze roller provided in Example 1 of the present utility model;

[0017] Figure 2 A schematic diagram of the structure of a strip steel surface residual liquid removal mechanism provided in Example 2 of the present utility model;

[0018] Figure 3 This is a schematic diagram of the arrangement structure of the compressed air nozzle on the air guide plate in Example 2. DETAILED DESCRIPTION

[0019] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example 1

[0021] like Figure 1 The present invention provides a squeezing roller 100, comprising an upper squeezing roller 101 and a lower squeezing roller 102. The upper squeezing roller 101 and / or the lower squeezing roller 102 are equipped with a lifting drive mechanism. Preferably, the upper squeezing roller 101 and the lower squeezing roller 102 are both idler rollers. When the steel strip 5 is running, the upper squeezing roller 101 and the lower squeezing roller 102 are driven to rotate to squeeze out the residual liquid 50 on the surface of the steel strip. Preferably, the upper squeezing roller 101 and the lower squeezing roller 102 are both equipped with a lifting drive mechanism, which can cause the upper squeezing roller 101 and the lower squeezing roller 102 to press against the surface of the steel strip, thereby improving the squeezing effect.

[0022] It can be designed that both the upper squeeze roller 101 and the lower squeeze roller 102 include a working roller and a support roller, and the support roller is used to support the working roller.

[0023] Preferably, an upper wiper 103 is arranged at the inlet side of the squeeze roller. The upper wiper 103 is located above the strip running channel and has a wiper portion 1031 at its bottom end suitable for contacting the upper surface of the strip to scrape off the residual liquid 50 on the upper surface of the strip.

[0024] Among them, the bottom wiper part 1031 of the upper wiper plate 103 is preferably made of soft wear-resistant parts such as flexible rubber plates to improve service life and wiping effect; the upper wiper plate 103 is preferably installed on the roller seat of the squeezing upper roller 101 and can move with the squeezing upper roller 101.

[0025] In one embodiment, Figure 1 The wiper part 1031 is in the shape of a hollow rod, which ensures that the wiper part 1031 has a certain elastic space and can be in close contact with the surface of the strip within a certain range. The wiping effect is much better than that of the flat wiper part 1031; it is further preferred to use a round rod wiper part 1031, which has a longer service life.

[0026] Preferably, the mounting position of the upper wiper plate 103 on the roller seat of the upper squeeze roller 101 is adjustable, and the adjustment direction is vertical. For example, the upper wiper plate 103 can be mounted to the roller seat of the upper squeeze roller 101 using bolts. Multiple bolt mounting holes are sequentially provided on the roller seat from top to bottom to achieve the aforementioned vertical adjustment of the mounting position. Based on this design, the position of the upper wiper plate 103 can be adjusted according to actual conditions, ensuring the wiping effect of the upper wiper plate 103 while preventing the wiper portion 1031 from being too tightly attached to the strip surface, thereby shortening its service life.

[0027] In one embodiment, Figure 1An upper inlet water baffle 104 is also disposed on the inlet side of the squeeze roller. The upper inlet water baffle 104 is mounted on the roller seat of the upper squeeze roller 101. The upper inlet water baffle 104 is located on the steel-incoming side of the upper squeeze roller 101, with the plate end close to the working roll surface of the upper squeeze roller 101, for example, providing a clearance fit with the working roll surface of the upper squeeze roller 101. The upper inlet water baffle 104 can reduce splashing / dripping of liquid from being thrown into the roller system of the upper squeeze roller 101, thereby reducing the risk of the upper squeeze roller 101 carrying residual liquid 50 onto the strip surface.

[0028] In one embodiment, Figure 1 An upper outlet water baffle 105 is also disposed on the outlet side of the squeeze roller 100. The upper outlet water baffle 105 is mounted on the roller seat of the upper squeeze roller 101. The upper outlet water baffle 105 is located on the steel-outgoing side of the upper squeeze roller 101, and the plate end is close to the working roll surface of the upper squeeze roller 101, for example, with a clearance fit with the working roll surface of the upper squeeze roller 101. The upper outlet water baffle 105 can reduce the situation where residual liquid 50 drips from the roller system (especially the backup roller) of the upper squeeze roller 101 onto the strip surface.

[0029] In one embodiment, Figure 1 An outlet lower water baffle 106 is also disposed on the outlet side of the squeeze roller 100. The outlet lower water baffle 106 is mounted on the roller seat of the squeeze roller 102. The outlet lower water baffle 106 is located on the steel-outlet side of the squeeze roller 102, and the plate end of the outlet lower water baffle 106 is close to the working roll surface of the squeeze roller 102, for example, with a clearance fit with the working roll surface of the squeeze roller 102. The outlet lower water baffle 106 can prevent the squeeze roller 102 from throwing liquid onto the lower surface of the strip.

[0030] Alternatively, as Figure 1 The squeeze roller 101 is equipped with a roller surface sealing unit, which is used to limit the dripping of residual liquid 50 on the squeeze roller 101 and reduce the situation where the roller system (especially the support roller) of the squeeze roller 101 drips residual liquid 50 onto the surface of the strip. The roller surface sealing unit can use a sealing rubber plate 107. The sealing rubber plate 107 is located on the steel-outlet side of the squeeze roller 101 and the plate end contacts the working roller of the squeeze roller 101 to achieve the purpose of sealing the roller surface and isolating the upper and lower spaces. It can also scrape off the residual liquid 50 on the surface of the working roller, further improving the residual liquid removal effect; when the sealing rubber plate 107 is installed on the outlet upper water baffle 105, the residual liquid 50 scraped off can be diverted to the outlet upper water baffle 105, and these liquids are discharged and removed by means of structures such as the water receiving plate.

[0031] Example 2

[0032] like Figure 2An embodiment of the present invention provides a mechanism for removing residual liquid on the surface of a steel strip, comprising a first-stage squeezing roller, or a plurality of squeezing rollers arranged in sequence along the running direction of the steel strip, at least some of the squeezing rollers adopt the squeezing rollers 100 provided in the first embodiment above.

[0033] Among them, the use of multi-stage squeeze rollers can effectively improve the removal effect of residual liquid 50 on the surface of the strip. Figure 2 A two-stage squeezing roller is used, including a first squeezing roller 1 and a second squeezing roller 2, wherein the second squeezing roller 2 is preferably the squeezing roller 100 provided in the above embodiment 1.

[0034] As a preference, Figure 2 The second squeeze roller 2 has a smaller diameter than the first squeeze roller 1. By utilizing the smaller diameter and easier deformation of the second squeeze roller 2, its working rollers can more closely contact the steel strip 5, improving its adaptability to the strip shape and ensuring effective residual liquid removal. This structure allows for gradual, step-by-step removal of residual liquid 50, improving both the efficiency and effectiveness of residual liquid removal.

[0035] The first squeezing roller 1 includes a first squeezing upper roller 11 and a first squeezing lower roller 12 . The first squeezing upper roller 11 and / or the first squeezing lower roller 12 are equipped with a lifting drive mechanism.

[0036] In one embodiment, Figure 2 and Figure 3 The first squeeze roller 1 is also equipped with an air guide unit and a compressed air compensation unit.

[0037] The air guide unit includes an upper air guide plate 31, which is arranged at the outlet side of the first squeezing roller 1 and above the strip running channel, and is used to guide the airflow at the outlet of the first squeezing roller to improve the situation where the liquid on the side of the edge roll gap flows to the middle roll gap side;

[0038] The compressed air compensation unit includes an upper compressed air blowing unit, which includes multiple upper compressed air nozzles 41 arranged on the outlet side of the first squeezing roller 1 and located above the strip running channel, and is used to spray compressed air to the outlet of the first squeezing roller, so that the air pressure on the middle roll gap side is greater than the air pressure on the edge roll gap side.

[0039] The first upper squeeze roller 11 and the first lower squeeze roller 12 are preferably idle rollers, which drive the first upper squeeze roller 11 and the first lower squeeze roller 12 to rotate when the strip 5 runs, so as to squeeze out most of the residual liquid 50 on the surface of the strip.

[0040] Preferably, the first upper squeezing roller 11 and the first lower squeezing roller 12 are both equipped with a lifting drive mechanism, which enables the first upper squeezing roller 11 and the first lower squeezing roller 12 to press the surface of the strip to improve the squeezing effect.

[0041] Preferably, the upper air guide plate 31 is fixedly mounted on the roller seat of the first upper squeezing roller 11 and can move with the first upper squeezing roller 11 , which not only facilitates the installation of the upper air guide plate 31 but also ensures its airflow guiding effect.

[0042] The upper air guide plate 31 can be a straight plate, and its plate surface is preferably parallel to the vertical direction, such as Figure 2 The inner surface of the upper air guide plate 31 is close to the first squeezing upper roller 11 and a first slit is formed between the two. The bottom end of the upper air guide plate 31 is close to the strip running channel and a second slit is formed between the two. The upper air guide plate 31, the first squeezing upper roller 11 and the strip 5 can form a triangular area. Due to the constraints of the first slit and the second slit, the difficulty of air escaping in the triangular area is increased, ensuring a positive pressure environment in the triangular area, thereby suppressing the liquid on the side of the edge roller gap from flowing to the middle roller gap.

[0043] When an upper compressed air blowing unit is provided, compressed air is sprayed toward the roller gap side through the upper compressed air blowing unit to ensure a positive pressure environment in the triangular area. On this basis, the inner plate surface of the upper air guide plate 31 is designed as an arc-shaped plate surface, and the curvature of the arc-shaped plate surface is preferably matched with the first squeezing upper roller 11, so that the airflow on the outlet side of the first squeezing roller can be better guided to ensure a stable pressure environment in the triangular area.

[0044] More preferably, Figure 2 and Figure 3 The air guide unit also includes a lower air guide plate 32, located at the outlet of the first squeeze roller 1 and below the strip passage. This lower air guide plate 32 guides the airflow at the outlet of the first squeeze roller to prevent liquid from flowing from the edge roll gap to the center roll gap. This design further improves the removal of residual liquid 50 from the strip surface.

[0045] Preferably, the lower air guide plate 32 is fixedly mounted on the roller seat of the first squeeze roller 12 and can move with the first squeeze roller 12, which not only facilitates the installation of the lower air guide plate 32 but also ensures its airflow guiding effect.

[0046] The configuration structure of the lower air guide plate 32 may refer to the configuration structure of the upper air guide plate 31 and will not be described in detail here.

[0047] The upper compressed air blowing unit is used to blow compressed air to the outlet of the first squeezing roller, so that the air pressure on the middle roller gap side is greater than the air pressure on the side roller gap side, thereby preventing liquid channeling caused by the airflow on the side roller gap side.

[0048] Optionally, the upper compressed air nozzle 41 is arranged on the upper air guide plate 31, and the bracket and other components required for the arrangement of the upper compressed air nozzle 41 can be omitted; wherein, the upper compressed air nozzle 41 can be arranged on the inner plate surface of the upper air guide plate 31, or, the upper air guide plate 31 is set to a hollow plate with a certain thickness, and the upper compressed air nozzle 41 is arranged in the hollow cavity of the upper air guide plate 31 or passes through the inner plate surface of the upper air guide plate 31 from the hollow cavity of the upper air guide plate 31 and blows air toward the roller gap side, which can facilitate the arrangement of the upper compressed air nozzle 41, especially the air supply pipe and the like can be arranged from the hollow cavity of the upper air guide plate 31.

[0049] Preferably, multiple upper compressed air nozzles 41 are arranged in sequence along the width direction of the strip running channel, including one or more middle nozzles 411 and multiple side nozzles 412. Optionally, the middle nozzle 411 sprays directly toward the middle roll gap (that is, the projection of the axis of the middle nozzle 411 on the horizontal plane is parallel to the strip running direction), and the side nozzle 412 sprays toward the side roll gap and the spraying direction is inclined toward the outside of the strip running channel, that is, the projection of the axis of the side nozzle 412 on the horizontal plane has an angle with respect to the strip running direction (greater than 0° and less than 90°). This not only prevents the liquid channeling caused by the airflow on the side of the side roll gap, but also drives the liquid on the strip surface to the outside, thereby improving the cleanliness of the strip surface.

[0050] More preferably, Figure 2 and Figure 3 The compressed air compensation unit also includes a lower compressed air blowing unit, which includes a plurality of lower compressed air nozzles 42 arranged on the outlet side of the first squeezing roller 1 and located below the strip running channel, and is used to spray compressed air to the outlet of the first squeezing roller, so that the air pressure on the middle roll gap side is greater than the air pressure on the side of the edge roll gap, thereby preventing liquid channeling caused by the airflow on the side of the edge roll gap.

[0051] The arrangement structure of the lower compressed air nozzle 42 may refer to the arrangement structure of the upper compressed air nozzle 41 and will not be described in detail here.

[0052] Based on the above-mentioned upper compressed air blowing unit and / or lower compressed air blowing unit, while achieving the effect of preventing liquid crossflow caused by the airflow on the side of the edge roll gap, in particular, due to the increase in the gas pressure at the roll gap outlet, it can better prevent the liquid on the surface of the strip from passing through the roll gap of the first squeezing roll 1, thereby improving the squeezing effect.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A squeezing roller, comprising an upper squeezing roller and a lower squeezing roller, wherein the upper squeezing roller and / or the lower squeezing roller are equipped with a lifting drive mechanism, characterized in that: An upper wiper is arranged on the inlet side of the squeeze roller. The upper wiper is located above the strip running channel and has a flexible wiper portion at the bottom end suitable for contacting the upper surface of the strip. The wiper portion is in the shape of a hollow rod.

2. The squeeze roller according to claim 1, wherein: The wiper portion is in a round rod structure.

3. The squeeze roller according to claim 1, wherein: The upper water scraper is mounted on the roller seat of the upper squeeze roller.

4. The squeeze roller according to claim 3, wherein: The installation position of the upper wiper plate on the roller seat of the upper squeeze roller is adjustable, and the adjustable direction is vertical.

5. The squeeze roller according to claim 1, wherein: An inlet upper water baffle is also arranged on the inlet side of the squeezing roller. The inlet upper water baffle is installed on the roller seat of the squeezing upper roller. The inlet upper water baffle is located on the steel incoming side of the squeezing upper roller and the plate end is close to the working roller surface of the squeezing upper roller.

6. The squeeze roller according to claim 1, wherein: An outlet upper water baffle is also arranged on the outlet side of the squeeze roller, and the outlet upper water baffle is installed on the roller seat of the squeeze roller. The outlet upper water baffle is located on the steel outlet side of the squeeze roller and the plate end is close to the working roller surface of the squeeze roller.

7. The squeeze roller according to claim 1 or 6, characterized in that: The squeeze roller is equipped with a roller surface sealing unit, which uses a sealing rubber plate. The sealing rubber plate is located on the steel tapping side of the squeeze roller and the plate end contacts the working roller of the squeeze roller.

8. The squeeze roller according to claim 1, wherein: An outlet lower water baffle is also arranged on the outlet side of the squeeze roller, and the outlet lower water baffle is installed on the roller seat of the squeeze roller. The outlet lower water baffle is located on the steel outlet side of the squeeze roller and the plate end is close to the working roller surface of the squeeze roller.

9. A mechanism for removing residual liquid from the surface of a steel strip, comprising a single-stage squeezing roller, or multiple stages of squeezing rollers arranged in sequence along the running direction of the steel strip, characterized in that: At least part of the squeezing rollers is the squeezing roller according to any one of claims 1 to 8.

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