CN103031507A

CN103031507A - Knife lip wiping apparatus

Info

Publication number: CN103031507A
Application number: CN2011102909335A
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: 2013-04-10
Anticipated expiration: 2031-09-29
Also published as: CN103031507B

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, the hot-dip aluminizing zinc production line.Usually air knife is installed in the top of zinc pot, the band steel goes out the zinc pot and passed through continuously afterwards two airblade device, have on every sheet devices and exceed and traverse whole strip width strip lip, the uniform high pressure draft of ejection zinc, the aluminium zinc solution that belt steel surface is unnecessary scrapes before solidifying in the lip, to reach the purpose of control strip coating.In the 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 the 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 the product defectses such as air knife striped occurring with the coating of steel.

The air knife cutter lip cleaning means that generally adopt at present as shown in Figure 1, mainly hand a terminal bending and wear into the long copper rod of centrum by artificial, make its crooked centrum part reach dirt settling purpose on the cleaning cutter lip in air knife cutter lip position move left and right by operating this copper rod.Operator need overcome the high pressure draft of cutter lip ejection to the impact of copper rod impact in this removal treatment, and cleaning effect is poor, and the 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, the lip of air knife gap is the symmetrical arc (referring to Fig. 2) that intermediate space is little, the gap, both sides increases gradually, and the CN101768711A employing is that blade places the upper lip surface, the head of blade is inserted in the lip simultaneously, whole blade and cutter head realize scraping slag along the lip move left and right under the effect of cylinder, cutter head will be done straight-line displacement in scale removal process like this, cause the cutter lip can't effectively be removed near the slag of position, the left and right sides and lower lip surface adhesion.

2, in the actual use procedure winding-up angle of lip of air knife need to adjust according to product of production line processing requirement difference (namely the device need to rotate to an angle, generally be ± 10 ° in), and the head of cleaning blade is inserted in the lip among the CN101768711A, with the rotation of restriction airblade device, the winding-up angle can't be adjusted.

3, the head of cleaning blade inserts in the lip among the CN101768711A, normal lip of air knife gap is generally between 0.5-2.0mm, the blade cutter head thickness that inserts in the lip is answered＜0.5mm, crossing thin cutter head is easily blocked by the slag that lip adheres to, 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 for above-mentioned prior art exists by texture improvement, proposes a kind of cutter lip wiping arrangement that can significantly improve wiping effect, thereby helps 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 move along its length direction, and the wiping body that is subjected 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 along its length extension 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 consists of described moving sets of described track, and has the nut that meshes with described screw rod.

The invention has the beneficial effects as follows:

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

2, because wiping body covers the lip outside surface, so its wiping effect is not subjected 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 installed on the airblade device, can satisfy the requirement of existing lip of air knife winding-up angular setting fully.

Description of drawings

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

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

Fig. 3 is the decomposition texture synoptic 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 synoptic diagram of Fig. 3 embodiment.

Among the 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

The lip of air knife wiping arrangement basic structure of present embodiment as shown in Figure 3, airblade device has the winding-up lip, the 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 reducing motor 12 drives by universal connecting shaft 13 and spiral wheel on the airblade device.Airblade device is equipped with outward by involutory fixing "＜" font fore-stock 2 and the trilateral wiping framework of sliding rail rack 1 formation, and namely the wiping framework is triangular in shape, is made of involutory fixing "＜" font fore-stock and sliding rail rack.The wiping framework has and the track 9 equipped guide grooves 14 that consist of moving sets, and has the nut 16 that meshes with screw rod 11.The wiping body 6 that is subjected to elastic acting force to press close to lip is equipped with at fore-stock 2 contiguous lip places in the wiping framework.Its concrete structure as shown in Figure 4, four hexagon socket head cap screws 5 serve as a contrast rectangle wiping body 3 with behind the mesh liner plate 4 by upper and lower pressing plate 17 respectively, pass respectively spring 6, are screwed on the fore-stock 2, be rectangle wiping body lining with behind the mesh liner plate, by spring fitting on fore-stock.Therefore can wiping body be pressed to lip by elastic force after the assembling, not only make it cover the lip outside surface, and can protrude in the gap of lip by local deformaton.The upper end of fore-stock 2 is connected by the corresponding position of bolt 7 with sliding rail rack 1, and the 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, also have on the sliding rail rack 1 of present embodiment with airblade device on tail rod 10 further consist of the slide block 15 of stablizing moving sets.

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

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

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

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

1) wiping arrangement is comprised of two cover wipers, can realize the quick wiping of lip of air knife is safeguarded, and the detrimentally affect to producing when reducing the 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 installed in respectively the back side and the upper surface of airblade device, can avoid in the zinc pot 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, has certain elasticity, liner plate and fore-stock top are vesicular structure, reduce high pressure draft to the detrimentally affect of its generation in the time of can making wiping arrangement work, can make things convenient for high pressure draft that the slag under the lip removing is blown away from engraved structure simultaneously.

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

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. cutter lip wiping arrangement, comprise and have 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 move along its length direction, and the wiping body that is subjected 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 along its length extension 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 consists of described moving sets of described track, and has the nut that meshes with described screw rod.

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

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

5. cutter lip wiping arrangement according to claim 4, it is characterized in that: the upper end of described fore-stock is connected by the corresponding position with 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 rectangle wiping body lining is with behind the mesh liner plate, by spring fitting on fore-stock.