CN103031507B

CN103031507B - Knife lip wiping apparatus

Info

Publication number: CN103031507B
Application number: CN201110290933.5A
Authority: CN
Inventors: 陈绍林
Original assignee: Shanghai Meishan Iron and Steel Co Ltd
Current assignee: Shanghai Meishan Iron and Steel Co Ltd
Priority date: 2011-09-29
Filing date: 2011-09-29
Publication date: 2014-11-26
Anticipated expiration: 2031-09-29
Also published as: CN103031507A

Abstract

The invention relates to a knife lip wiping apparatus, and belongs to the technical field of metallurgical surface treatment. The apparatus comprises an air knife device having a blowing lip and a triangular cross section, a wiping frame which forms a moving pair with the air knife device and can move along the length direction of the air knife device is arranged on the air knife device, and the position of the wiping frame adjacent to the lip of the knife is provided with a wiper which is positioned adjacent to the lip under an elasticity action. The knife lip wiping apparatus has the following beneficial effects: the wiper will overcome the influences of the high-pressure airflow ejected from the lip under the elastic action when the wiping apparatus works, so the full and effective contact with the air knife lip is realized, and the flexible wiper can cover the external surface of the lip; and the knife lip wiping apparatus can protrude into the gap of the lip by means of deformation, and wipes the lip in the translation process, so the cleaning effect of the lip is substantially improved.

Description

A kind of cutter lip wiping arrangement

Technical field

The present invention relates to a kind of device of clearing up the attached foreign matter in air knife cutter lip position, especially a kind of cutter lip wiping arrangement, belongs to metallurgical technical field of surface.

Background technology

Air knife is the key processing equipment on the pot galvanize of modern steel industry, hot-dip aluminizing zinc production line.Conventionally air knife is arranged on the top of zinc pot, band steel goes out zinc pot and passed through continuously afterwards two airblade device, on every sheet devices, have and exceed and traverse whole strip width strip lip, in lip, the uniform high pressure draft of ejection scrapes unnecessary zinc, the aluminium zinc solution of belt steel surface before solidifying, to reach the object of controlling strip coating.In actual production process, the high pressure gas of lip of air knife ejection fails to be convened for lack of a quorum and causes zinc, aluminium zinc solution in part zinc pot to splash, under the cooling effect of air-flow, then solidify and be attached to cutter lip position, have influence on continuity and the homogeneity of lip of air knife ejection air-flow, thereby cause occurring the product defectses such as air knife striped with the coating of steel.

The air knife cutter lip cleaning means that generally adopt at present as shown in Figure 1, mainly crooked by an artificial hand-held end and wear into the long copper rod of centrum, by operating this copper rod, make its crooked centrum part move left and right to reach in air knife cutter lip position to clear up dirt settling object on cutter lip.In this removal treatment, operator need overcome the impact that the high pressure draft of cutter lip ejection impacts copper rod, and cleaning effect is poor, and operating personnel need to and bear very large security risk in the face of rugged environment simultaneously.

Application number is that the Chinese patent of CN101768711A discloses respectively a kind of automatic cleaning device for lip of air knife, although this device can be realized the automatic erasing of the edge of a knife, has following shortcoming:

1, for guaranteeing the homogeneity of air knife strip lip ejection air-flow, then be convenient to control the homogeneity of coating, lip of air knife gap is the symmetrical arc (referring to Fig. 2) that intermediate space is little, gap, both sides increases gradually, and CN101768711A employing is that blade is placed in upper lip surface, the head of blade is inserted in lip simultaneously, whole blade and cutter head move left and right to realize along lip under the effect of cylinder scrapes slag, in scale removal process, cutter head will be done straight-line displacement like this, cause cutter lip cannot effectively be removed near the slag of position, the left and right sides and lower lip surface adhesion.

2, in actual use procedure the winding-up angle of lip of air knife need to adjust according to product of production line processing requirement difference (device need to rotate to an angle, be generally ± 10 ° in), and the head of clearing up blade in CN101768711A is inserted in lip, by the rotation of restriction airblade device, the angle that makes to jet cannot be adjusted.

3, the head of clearing up blade in CN101768711A inserts in lip, normal lip of air knife gap is generally between 0.5-2.0mm, the blade cutter head thickness inserting in lip is answered < 0.5mm, crossing the slag that thin cutter head easily adheres to by lip blocks, cutter head is not only easy to wear, but also being subject to the high pressure draft impact that lip sprays, cleaning effect is undesirable.

Summary of the invention

The object of the invention is to: the shortcoming existing for above-mentioned prior art, by texture improvement, proposes a kind of cutter lip wiping arrangement that can significantly improve wiping effect, thereby contribute to guarantee quality of coating.

In order to achieve the above object, cutter lip wiping arrangement of the present invention comprises having winding-up lip and cross section airblade device triangular in shape, described airblade device is equipped with outward and forms with it the wiping framework that moving sets can be mobile along its length, and the wiping body that is subject to elastic acting force to press close to lip is equipped with at the contiguous lip of described wiping framework place.

The present invention further improves: described airblade device has the track of extension along its length and the rotatable screw rod that power set drives away from the back side of lip, described wiping framework corresponding position has and the equipped guide groove that forms described moving sets of described track, and has the nut meshing with described screw rod.

The invention has the beneficial effects as follows:

When 1, wiping arrangement is worked, under elastic force effect, wiping body will overcome the high pressure draft impact of lip ejection, realize and fully effectively contacting with lip of air knife, and wiping body can cover lip outside surface, also can protrude in lip gap by self-deformation, wiping lip in translation process, significantly improves the cleaning effect of lip.

2, because wiping body covers lip outside surface, so its wiping effect is not subject to the impact in lip gap, and the fault that can avoid wiper to be stuck in lip occurs.

3, the transmission rig major part of wiping arrangement is arranged on airblade device, can meet the requirement of existing lip of air knife winding-up angular setting completely.

Accompanying drawing explanation

Fig. 1 is prior art airblade device and lip cleaning schematic diagram.

Fig. 2 is the gap schematic diagram of lip of air knife.

Fig. 3 is the decomposition texture schematic diagram of a preferred embodiment of the invention.

Fig. 4 is the structure partial enlarged diagram of Fig. 3 embodiment.

Fig. 5 is the assembling mechanism schematic diagram of Fig. 3 embodiment.

In figure: 1 sliding rail rack, 2 wiping supports, 3 wiping bodies, 4 liner plates, 5 hexagon socket head cap screws, 6 springs, 7 bolts, 8 bearing pins, 9 tracks, 10 tail rods, 11 screw rods, 12 reducing motors, 13 universal connecting shafts, 14 guide grooves, 15 slide blocks, 16 nuts, 17 pressing plates.

Embodiment

As shown in Figure 3, airblade device has winding-up lip to the lip of air knife wiping arrangement basic structure of the present embodiment, and cross section is triangular in shape.Airblade device has the horizontal rail 9 of extending along its length away from the back side of lip, and is placed in the rotatable horizontal screw bolt 11 that on airblade device, reducing motor 12 drives by universal connecting shaft 13 and spiral wheel.Airblade device is equipped with the trilateral wiping framework consisting of involutory fixing " < " font fore-stock 2 and sliding rail rack 1 outward, be that wiping framework is triangular in shape, by involutory fixing " < " font fore-stock and sliding rail rack, formed.Wiping framework has and the equipped guide groove 14 that forms moving sets of track 9, and has the nut 16 meshing with screw rod 11.In wiping framework, the wiping body 6 that is subject to elastic acting force to press close to lip is equipped with at fore-stock 2 contiguous lip places.Its concrete structure as shown in Figure 4, four hexagon socket head cap screws 5 serve as a contrast rectangle wiping body 3 with after mesh liner plate 4 by upper and lower pressing plate 17 respectively, through spring 6, are screwed on fore-stock 2 respectively, be rectangle wiping body lining with after mesh liner plate, by spring fitting on fore-stock.Therefore after assembling, can wiping body be pressed to lip by elastic force, not only make it cover lip outside surface, and can protrude in the gap of lip by local deformaton.The upper end of fore-stock 2 is connected by bolt 7 and the corresponding position of sliding rail rack 1, and lower end is hinged with the corresponding position of sliding rail rack 1 by bearing pin 8, therefore, when needs are cleared up or changed wiping body, can open very easily fore-stock.In addition, on the sliding rail rack 1 of the present embodiment, also have with airblade device on tail rod 10 further form the slide block 15 of stablizing moving sets.

During work, after starting reducing motor, by transmission rig, drive screw rod, and then order about wiping framework translation, thus by wiping body, lip automatic erasing is clean.

During practical application, the airblade device left and right sides fills respectively a set of wiper (referring to Fig. 5).Under normal circumstances, two cover wipers are in respectively wait position separately, device both sides, according to the surface quality of strip coating, confirm lip of air knife dry slag position, start in time operation and carry out lip wiping operation from the nearest wiper in lip dry slag position.In the time only need carrying out routine cleaning to lip, operator can start two cover wipers simultaneously and carry out lip wiping operation simultaneously, to reach the object of lip rapid cleaning, reduce wiping process to the detrimentally affect of producing.

Facts have proved, the slag cleaning device of the present embodiment can be properly settled an existing lip of air knife dry slag difficult problem, when improving wiping cleaning efficiency and effect, has reduced the detrimentally affect normal production being caused because of lip cleaning.

Be summed up, the device of this embodiment has following principal feature:

1) wiping arrangement is comprised of two cover wipers, and can realize the quick wiping of lip of air knife is safeguarded, the detrimentally affect to production while reducing wiping operation, and can clear up fast nearby for the different wiper of dry slag point selection.

2) track of wiper and tail rod are arranged on respectively the back side and the upper surface of airblade device, can avoid in zinc pot the metallic solution damage of splashing.

3) < " shape fore-stock and "] " the rear whole triangulation wiping framework of type sliding rail rack connection, sound construction, moves more stable.

4) wiping body is comprised of the multilayer rhombus net hole pattern sheet of stainless steel, there is certain elasticity, liner plate and fore-stock top are vesicular structure, in the time of can making wiping arrangement work, reduce the detrimentally affect of high pressure draft to its generation, can facilitate high pressure draft that the slag under lip removing is blown away from engraved structure simultaneously.

5) liner plate is plate mica material, and the high temperature resistant while can be avoided " the damage of fore-stock top generation to lip after wiping body wearing and tearing.

In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.

Claims

1. a cutter lip wiping arrangement, comprise and there is winding-up lip and cross section airblade device triangular in shape, it is characterized in that: described airblade device is equipped with outward and forms with it the wiping framework that moving sets can be mobile along its length, the wiping body that is subject to elastic acting force to press close to lip is equipped with at the contiguous lip of described wiping framework place.

2. cutter lip wiping arrangement according to claim 1, it is characterized in that: described airblade device has the track of extension along its length and the rotatable screw rod that power set drives away from the back side of lip, described wiping framework corresponding position has and the equipped guide groove that forms described moving sets of described track, and has the nut meshing with described screw rod.

3. cutter lip wiping arrangement according to claim 2, is characterized in that: described wiping body is for having elastic stainless steel multilayer rhombus net hole pattern sheet.

4. cutter lip wiping arrangement according to claim 3, is characterized in that: described wiping framework is triangular in shape, involutory fixing " < " font fore-stock and sliding rail rack, consists of.

5. cutter lip wiping arrangement according to claim 4, is characterized in that: the upper end of described fore-stock is by being connected with the corresponding position of sliding rail rack, and the corresponding position of lower end and sliding rail rack is hinged.

6. cutter lip wiping arrangement according to claim 5, is characterized in that: described wiping body is rectangle, and it serves as a contrast with after mesh liner plate, by spring fitting on fore-stock.