CN110314809B - Roller coater for steel strip surface - Google Patents

Roller coater for steel strip surface Download PDF

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Publication number
CN110314809B
CN110314809B CN201810295474.1A CN201810295474A CN110314809B CN 110314809 B CN110314809 B CN 110314809B CN 201810295474 A CN201810295474 A CN 201810295474A CN 110314809 B CN110314809 B CN 110314809B
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Prior art keywords
roller
coating
fixed
bearing
steel strip
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CN110314809A (en
Inventor
陈绍林
刘金华
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Shanghai Meishan Iron and Steel Co Ltd
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Shanghai Meishan Iron and Steel Co Ltd
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Priority to CN201810295474.1A priority Critical patent/CN110314809B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0826Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
    • B05C1/0834Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets the coating roller co-operating with other rollers, e.g. dosing, transfer rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/086Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line a pool of coating material being formed between a roller, e.g. a dosing roller and an element cooperating therewith
    • B05C1/0865Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line a pool of coating material being formed between a roller, e.g. a dosing roller and an element cooperating therewith the cooperating element being a roller, e.g. a coating roller
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material

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Abstract

The invention relates to a roller coater for the surface of a steel strip, belonging to the technical field of cold roll coating equipment. The roller coater for the surface of the steel strip comprises a coating roller, a liquid taking roller and a driving motor, wherein the two ends of the coating roller and the two ends of the liquid taking roller are respectively supported on a bearing seat through bearings, and the coating roller and an extension shaft of the liquid taking roller, which is positioned at the transmission side, are connected with the driving motor, and the roller coater is characterized in that: the coating roller and the liquid taking roller on the transmission side are self-aligning floating bearings, the coating roller and the liquid taking roller on the operation side are self-aligning roller bearings, and the bearing seat is fixed on a rotatable rotating platform. The roller coater for the surface of the steel strip can realize free adjustment of pressure on one side between the coating roller and the steel strip and between the liquid taking roller and the coating roller, can effectively eliminate the defects of film thickness caused by abrasion of the roller surface of the coating roller and the inconsistent thickness of two sides of the steel strip, improves the uniformity and accuracy of the film thickness, and ensures the stable quality of the coating film on the surface of the steel strip.

Description

Roller coater for steel strip surface
Technical Field
The invention relates to a steel strip surface roller coating device, in particular to a roller coater rack, belonging to the technical field of cold roller coating devices.
Background
In order to meet the corrosion resistance requirements of household appliances, industrial equipment and the like on the surface of a steel plate, provide good surface coating property, humidity resistance and fingerprint resistance for household appliances and automobile plate products, and prevent white rust and other defects in the transportation and processing process, a roll coater is generally used for coating a specified chemical coating on the surface of a strip steel in the product post-treatment process of a cold-rolling hot-dip aluminum zinc production line.
In the existing roll coating process, as shown in fig. 1, a roll coater is generally installed in a four-roll vertical symmetrical manner and mainly comprises two coating rolls 2, two liquid taking rolls 3, two liquid taking discs 4 and the like. Wherein the liquid taking roller 3 adopts the chromium plating treatment on the surface of a steel roller, and the coating roller 2 adopts the polyurethane rubber treatment on the surface layer of the steel roller. When the device works, a strip steel 1 passes through between two coating rollers 2 of a roll coater, the two coating rollers 2 are tightly pressed against the upper surface and the lower surface of the strip steel respectively, the upper coating roller is responsible for coating the upper surface of the strip steel, the lower coating roller is responsible for coating the lower surface of the strip steel, and the two liquid taking rollers are used for delivering chemical coatings in a liquid taking disc 4 to the upper coating roller and the lower coating roller respectively through the contact of the roller surfaces.
Referring to fig. 2, a coating roller 2 and a liquid-extracting roller 3 are respectively mounted on a liquid-extracting roller frame 5 and a coating roller frame 6 through respective bearing seats, the liquid-extracting roller frame 5 is mounted on the coating roller frame 6 through an upper layer linear guide rail 13, the coating roller frame 6 is mounted on a base 7 through a middle layer linear guide rail 15, and the base 7 is mounted on a roller coater substrate 8 through a bottom layer linear guide rail 16. The roller leaning process and pressure adjustment between the coating roller 2 and the liquid taking roller 3 are realized by driving a worm gear 10 through rotating a hand wheel 12 to enable a U-shaped frame 14 and a liquid taking roller frame 5 to horizontally slide along an upper layer linear guide rail 13. Similarly, the roll backing process and pressure adjustment between the coating roll 2 and the strip steel 1 are realized by rotating the hand wheel 12 to drive the worm gear to enable the coating roll frame 6 to horizontally slide along the middle-layer linear guide rail 15. And 8 pressure sensors 11 are positioned between the U-shaped frame 14 and the frame and are used for respectively detecting pressure values fed back when the liquid taking roller 3 and the coating roller 2 on two sides and the strip steel 1 are leaned against the rollers. The base 7 slides along the bottom layer linear guide rail 16 by controlling the action of the cylinder 9, so that the coating roller 2 and the strip steel 1 are quickly opened and backed when the strip steel welding seam passes through. The whole roller system and the machine frame are horizontally and symmetrically arranged on the roller coater base plate 8 along the rolling line of the roller coater.
The existing roller coater has the following problems in the roller coating process: 1) when the thicknesses of the two sides of the strip steel are inconsistent or the pressure between the two sides of the strip steel and the pressure between the two sides of the coating roller and the pressure between the coating roller and the liquid taking roller are inconsistent due to the unilateral abrasion of the roller surface of the coating roller, the pressure between the two sides of the strip steel and the pressure between the coating roller and the liquid taking roller cannot be effectively adjusted and controlled by the conventional roller coater due to the characteristic of a linear guide rail, so that the uniformity and the stability of the thickness of the coating are difficult to control, and the thickness; 2) the pressure sensor is arranged between the roller bearing seat and the driving device, the pressure born by the roller surface when the roller is backed by indirectly detecting the reaction force from the roller bearing seat, and most of the detected pressure values are the friction force of the roller and the rack thereof acting on the linear guide rail, so that the roller surface pressure detection value can be seriously lost when the linear guide rail slides to cause jamming, and the quality control of the coating film is directly influenced; 3) when the existing roller coater is used for a backup roll and passes a welding seam, the cylinder is controlled to realize the rapid opening and closing of the coating roll and the strip steel under the pressure state, so that the mutual impact force between the roll surfaces of the coating rolls on two sides is large during closing, the motor of the coating roll is blocked, and the polyurethane rubber burst accident of the roll surface of the coating roll often occurs.
Disclosure of Invention
The invention aims to solve the technical problem that the prior art is insufficient, and provides a steel strip surface roller coater which can realize free adjustment of unilateral pressure between a coating roller and a steel strip and between a liquid taking roller and the coating roller, and improve the uniformity and accuracy of film thickness so as to ensure the stable quality of a coating film on the surface of the steel strip.
In order to solve the above technical problems, the inventors of the present invention have proposed, based on the above findings, the following technical solutions: the utility model provides a steel band surface roll coater, includes coating roller, gets liquid roller and driving motor, the both ends of coating roller and getting liquid roller are equallyd divide and are supported on the bearing frame through the bearing respectively, the coating roller is located the protruding axle and the driving motor hookup of transmission side department with getting liquid roller, is located transmission side department the bearing on coating roller and the getting liquid roller all is self-aligning floating bearing, is located operation side department the bearing on coating roller and the getting liquid roller all is self-aligning roller bearing, the bearing frame is fixed on a rotatable rotary platform.
The technical scheme of the roller coater for the surface of the steel strip has the advantages that: the special structural design of the bearings on the two sides of the coating roller and the liquid taking roller adopts a self-aligning floating bearing shaft on the transmission sides of the coating roller and the liquid taking roller, so that the normal action of the bearings can be ensured when two degrees of automation of radial displacement and axis rotation occur simultaneously; self-aligning roller bearings are adopted on the operation sides of the coating roller and the liquid taking roller, so that the axial rotation freedom degree of 2 degrees is ensured when the transmission side is subjected to axial displacement, and the normal action can be realized even when the bearing block on the transmission side is subjected to displacement deviation; therefore, by matching with the use of the rotary platform below the bearing seat, the free adjustment of the unilateral pressure between the coating roller and the strip steel and between the liquid taking roller and the coating roller can be realized, the defects of the film thickness caused by the roller surface abrasion of the coating roller and the inconsistent thickness of the two sides of the strip steel can be effectively eliminated, the uniformity and accuracy of the film thickness are improved, and the stable quality of the coating film on the surface of the strip steel is ensured.
The improvement of the invention on the basis of the technical scheme is as follows: the pressure measuring mechanism comprises a retainer fixed on the rotary platform, a wedge-shaped block fixed at the bottom of the bearing seat, a pressure sensor and an end cover, wherein the retainer is provided with a dovetail groove, the wedge-shaped block is embedded and installed in the dovetail groove, the pressure sensor is fixed at one end of the retainer, which is far away from the strip steel, and is plugged at an opening at one end of the dovetail groove, and the end cover is fixed on the retainer and is plugged at an opening at the other end of the dovetail groove.
The technical scheme of the roller coater for the surface of the steel strip has the advantages that: the pressure between the liquid taking roller and the coating roller and the pressure between the coating roller and the strip steel can be directly detected by the pressure sensor on one side of the retainer through the micro displacement of the wedge-shaped blocks below the bearing seats of the roller and the dovetail grooves of the retainer respectively, and the pressure detection of the roller is more direct, real and effective.
The invention is further improved on the basis of the technical scheme that: the roll coater for the surface of the steel strip further comprises a base, two coating roll sliding table mechanisms, two T-shaped horizontal roll frames and two liquid taking roll sliding table mechanisms, wherein the two coating roll sliding table mechanisms are oppositely arranged at two ends of the base;
the coating roller sliding table mechanism comprises a first bottom plate fixed on the base, a first linear guide rail fixed on the first bottom plate, a first linear bearing nested on the first linear guide rail, a first servo motor, a first screw rod connected with the output end of the first servo motor and a first workbench fixed on the first linear bearing, wherein the first workbench is provided with a nut part matched with the first screw rod;
the bottom of a horizontal T-shaped end of the T-shaped horizontal roller frame is fixed on a first workbench;
the liquid taking roller sliding table mechanism comprises a second bottom plate fixed on a horizontal T-shaped extending part of the T-shaped horizontal roller frame, a second linear guide rail fixed on the second bottom plate, a second linear bearing embedded in the second linear guide rail, a second servo motor, a second screw rod connected with the output end of the second servo motor and a second workbench fixed on the second linear bearing, wherein the second workbench is provided with a nut part matched with the second screw rod;
the liquid taking roller is arranged on a second workbench through a bearing seat, a pressure measuring mechanism and a rotating platform;
the coating roller is arranged on the top of a horizontal T-shaped end of the T-shaped horizontal roller frame through a bearing seat, a pressure measuring mechanism and a rotating platform.
The technical scheme of the roller coater for the surface of the steel strip has the advantages that: the roller coating machine integrally adopts novel arrangement and structure, when a welding seam passes through the roller coating machine, the design of using an air cylinder when the existing roller coating machine passes through the welding seam to be opened is cancelled, the roller frame is controlled to horizontally and quickly move along a linear guide rail directly through the first servo motor of the coating roller sliding table mechanism, the quick control of the roller coating over the welding seam is realized, meanwhile, the pressure impact and the damage to the roller surface of the coating roller caused by the action of the air cylinder in the prior art are avoided, the simplification of the frame equipment of the roller coating machine is facilitated, the space utilization rate is improved, and the equipment manufacturing cost is saved.
One of the perfections of the invention on the basis of the technical scheme is as follows: the base is a cuboid base with two steps, the height phase difference value of the two steps is half of the diameter of the coating roller, and the rack is symmetrically installed on the base in a left-right sliding mode along the vertical center line of the strip steel of the production line.
The technical scheme of the roller coater for the surface of the steel strip has the advantages that: the base adopts the cuboid base of two-stage step form, and the frame is the horizontal slip symmetry along production line belted steel vertical center line and installs on the base, can avoid the mutual top impact of two coating roller roll surfaces in the backing roll process to strike and the pressure interference error that the backing roll exists simultaneously.
The second improvement of the invention on the basis of the technical scheme is as follows: two first linear guide rails which are arranged in parallel are fixed on the first bottom plate, and the first workbench is fixed on at least two first linear bearings; and two second linear guide rails which are arranged in parallel are fixed on the second bottom plate, and the second workbench is fixed on at least two second linear bearings.
The invention is improved on the basis of the technical scheme by the third step: the T-shaped horizontal roller frame is a hollow roller frame.
The invention is perfect on the basis of the technical scheme that: and the extending shafts of the coating roller and the liquid taking roller, which are positioned at the transmission side, are respectively connected with a driving motor through a telescopic ball cage catcher.
The fifth perfection of the invention on the basis of the technical scheme is as follows: the rotating platform is a rotating circular table.
Drawings
The surface roll coater for steel strip of the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a prior art roll coating process.
Fig. 2 is a schematic structural view of a conventional roll coater.
FIG. 3 is a schematic structural diagram of a roll coater for the surface of a steel strip according to an embodiment of the present invention.
Fig. 4 is an exploded view of a portion of the structure of fig. 3.
Fig. 5 is an assembly view of the roller bearing of fig. 3.
Fig. 6 is a schematic structural view of the coating roller slide mechanism in fig. 3.
Fig. 7 is a schematic structural view of the load cell in fig. 3.
FIG. 8 is a schematic drawing of the backup roll of the roll coater for the surface of the steel strip of FIG. 3.
FIG. 9 is a schematic representation of the overweld operation of the roll coater for the surface of the steel strip of FIG. 3.
In the figure: 1-strip steel, 2-coating roller, 3-liquid taking roller, 4-liquid taking disc, 5-liquid taking roller frame, 6-coating roller frame, 7-base, 8-roller coater base plate, 9-cylinder, 10-worm gear, 11-pressure sensor, 12-rotating hand wheel, 13-upper layer linear guide rail, 14-U-shaped frame, 15-middle layer linear guide rail, 16-bottom layer linear guide rail, 21-coating roller sliding table mechanism, 22-T type horizontal roller frame, 23-liquid taking roller sliding table mechanism, 24-pressure measuring mechanism, 25-bearing seat, 26-aligning floating bearing, 27-self-aligning roller bearing, 28-rotating platform, 31-first base plate, 32-first linear guide rail, 33-first linear bearing, 34-a first servo motor, 35-a first screw rod, 36-a first workbench, 37-a retainer, 38-a wedge-shaped block and 39-an end cover.
Detailed Description
Examples
The steel strip surface roll coater of the present embodiment, as shown in fig. 3 and 4, includes a coating roll 2, a liquid-extracting roll 3, a driving motor, a base 7, two coating roll slipway mechanisms 21 oppositely disposed at two ends of the base, two T-shaped horizontal roll stands 22 oppositely disposed, two liquid-extracting roll slipway mechanisms 23 oppositely disposed, and a pressure measuring mechanism 24, wherein the horizontal T ends of the two T-shaped horizontal roll stands 22 are disposed adjacent to each other. The T-shaped horizontal roller frame 22 is a hollowed-out roller frame.
The arrangement of devices such as a rolling mill transmission motor and the like in a steel rolling production line needs to be designed uniformly, one side close to an operation platform is called an operation side, and the side where a transmission device is located is called a transmission side. Two ends of the coating roller 2 and the liquid taking roller 3 are respectively supported on a bearing seat 25 through bearings, and extending shafts of the coating roller 2 and the liquid taking roller 3 at the transmission side are connected with a driving motor. The extending shafts of the coating roller 2 and the liquid taking roller 3 positioned at the transmission side are respectively connected with a driving motor through a telescopic ball cage catcher.
As shown in fig. 5, the bearings on the application roller 2 and the tapping roller 3 on the drive side are self-aligning floating bearings 26, the bearings on the application roller 2 and the tapping roller 3 on the operating side are self-aligning roller bearings 27, and the bearing blocks 25 are fixed on a rotatable rotary platform 28.
As shown in fig. 6, the coating roller sliding table mechanism 21 includes a first bottom plate 31 fixed on the base 7, a first linear guide rail 32 fixed on the first bottom plate, a first linear bearing 33 nested in the first linear guide rail, a first servo motor 34, a first lead screw 35 connected to an output end of the first servo motor, and a first work table 36 fixed on the first linear bearing 33, wherein the first work table 36 is provided with a nut portion engaged with the first lead screw 35;
the bottom of the horizontal T-shaped end of the T-shaped horizontal roller frame 22 is fixed on a first workbench 36;
the liquid-taking roller sliding table mechanism 23 of the present embodiment, similar to the coating roller sliding table mechanism 21, can refer to the coating roller sliding table mechanism shown in fig. 6, where the liquid-taking roller sliding table mechanism 23 includes a second bottom plate fixed on a horizontal T-shaped extension portion of the T-shaped horizontal roller frame 22, a second linear guide rail fixed on the second bottom plate, a second linear bearing nested in the second linear guide rail, a second servo motor, a second lead screw connected to an output end of the second servo motor, and a second work table fixed on the second linear bearing, and the second work table is provided with a nut portion engaged with the second lead screw.
The liquid taking roller 3 is arranged on a second workbench through a bearing seat 25, a pressure measuring mechanism 24 and a rotating platform 28;
the coating roller 2 is mounted on top of the horizontal T-head of the T-shaped horizontal roller frame 22 by means of a bearing block 25, a pressure measuring mechanism 24 and a rotary platform 28.
The pressure measuring mechanism 24 of the embodiment is arranged between the bearing block 25 and the rotating platform 28, as shown in fig. 7, the pressure measuring mechanism 24 comprises a holder 37 fixed on the rotating platform, a wedge block 38 fixed at the bottom of the bearing block 25, a pressure sensor 11 and an end cover 39, the holder 37 is provided with a dovetail groove, the wedge block 38 is nested and installed in the dovetail groove, the pressure sensor 11 is fixed at one end of the holder 37 far away from the strip steel and is blocked at an opening at one end of the dovetail groove, and the end cover 39 is fixed on the holder 37 and is blocked at an opening at the other. The pressure sensor 11 is a plate-type pressure sensor with a measuring range of 10 KN.
The base 7 of this embodiment is a two-stage step-shaped cuboid base, the height phase difference value of the two-stage steps is half of the diameter of the coating roller 2, and the machine frame is symmetrically installed on the base 7 in a left-right sliding manner along the vertical center line of the strip steel 1 of the production line.
In the embodiment, two first linear guide rails 32 arranged in parallel are fixed on the first bottom plate 31, and the first workbench 36 is fixed on at least two first linear bearings 33; two second linear guide rails which are arranged in parallel are fixed on the second bottom plate, and the second workbench is fixed on at least two second linear bearings.
When the roll coater works on the backup roll, as shown in fig. 8, the second servo motor on the liquid taking roll sliding table mechanism 23 drives the liquid taking roll 3 to move towards the direction close to the coating roll 2 along the second linear guide rail until the backup roll pressure between the liquid taking roll 3 and the coating roll 2 reaches a set value, at this moment, the pressure is directly transmitted to the wedge block 38 of the pressure measuring mechanism 24 through the bearing seat 25, and then the pressure is transmitted to the pressure sensor 11 through the micro displacement of the wedge block 38 and is detected.
When the pressure of the backup roll between the liquid taking roll 3 and the coating roll 2 reaches a set value, a first servo motor 34 on the coating roll sliding table mechanism 21 drives the whole T-shaped horizontal roll frame 22 to move along the first linear guide rail 32 in the direction close to the strip steel 1 until the pressure between the coating roll 2 and the strip steel reaches the set value, at the moment, the pressure is directly transmitted to a wedge-shaped block 38 of a pressure measuring mechanism 24 of the liquid taking roll through a bearing seat 25 of the coating roll, and the pressure is transmitted to a pressure sensor 11 through the micro displacement of the wedge-shaped block 38 and is detected.
When the overwelding seam of the roll coater on the surface of the steel strip works, as shown in fig. 9, when the roll coater has thickness changes on two sides of the steel strip in the normal roll coating process, and the pressure between the rolls and between the coating roll 2 and the steel strip 1 is inconsistent with a set value due to the single-side abrasion of the roll surfaces of the liquid taking roll 3 and the coating roll 2, the free adjustment of the single-side pressure between the coating roll 2 and the steel strip 1 and between the liquid taking roll 3 and the coating roll can be realized through corresponding servo motors.
When the strip steel welding seam passes through the roller coater, the whole T-shaped horizontal roller frame 22 is controlled to horizontally and rapidly move along the first linear guide rail 32 directly through the first servo motor 34 of the coating roller sliding table mechanism 21, and the rapid opening and closing control of the coating roller when the welding seam passes through the roller coater is realized.
The surface roll coater for steel strip of the present invention is not limited to the specific technical solutions of the above embodiments. All technical solutions formed by equivalent substitutions fall within the scope of the claims of the present invention.

Claims (7)

1. The utility model provides a steel band surface roll coater, includes coating roller, gets liquid roller and driving motor, the both ends of coating roller and getting liquid roller are equallyd divide and are supported on the bearing frame through the bearing respectively, the projecting shaft that coating roller and getting liquid roller are located the transmission side department links with driving motor, its characterized in that: the bearing on the coating roller and the bearing on the liquid taking roller on the transmission side are both self-aligning floating bearings, the bearing on the coating roller and the bearing on the liquid taking roller on the operation side are both self-aligning roller bearings, the bearing seat is fixed on a rotatable rotating platform, a pressure measuring mechanism is arranged between the bearing seat and the rotating platform and comprises a retainer fixed on the rotating platform, a wedge block fixed at the bottom of the bearing seat, a pressure sensor and an end cover, the retainer is provided with a dovetail groove, the wedge block is embedded and installed in the dovetail groove, the pressure sensor is fixed at one end of the retainer, far away from the strip steel, and is blocked at an opening at one end of the dovetail groove, and the end cover is fixed on the retainer and is blocked at an opening at the other end.
2. The steel strip surface roll coating machine of claim 1, further comprising: the roll coater for the surface of the steel strip further comprises a base, two coating roll sliding table mechanisms, two T-shaped horizontal roll frames and two liquid taking roll sliding table mechanisms, wherein the two coating roll sliding table mechanisms are oppositely arranged at two ends of the base;
the coating roller sliding table mechanism comprises a first bottom plate fixed on the base, a first linear guide rail fixed on the first bottom plate, a first linear bearing nested on the first linear guide rail, a first servo motor, a first screw rod connected with the output end of the first servo motor and a first workbench fixed on the first linear bearing, wherein the first workbench is provided with a nut part matched with the first screw rod;
the bottom of a horizontal T-shaped end of the T-shaped horizontal roller frame is fixed on a first workbench;
the liquid taking roller sliding table mechanism comprises a second bottom plate fixed on a horizontal T-shaped extending part of the T-shaped horizontal roller frame, a second linear guide rail fixed on the second bottom plate, a second linear bearing embedded in the second linear guide rail, a second servo motor, a second screw rod connected with the output end of the second servo motor and a second workbench fixed on the second linear bearing, wherein the second workbench is provided with a nut part matched with the second screw rod;
the liquid taking roller is arranged on a second workbench through a bearing seat, a pressure measuring mechanism and a rotating platform;
the coating roller is arranged on the top of a horizontal T-shaped end of the T-shaped horizontal roller frame through a bearing seat, a pressure measuring mechanism and a rotating platform.
3. The steel strip surface roll coating machine of claim 2, further comprising: the base is a two-stage step-shaped cuboid base, the height phase difference value of the two stages is half of the diameter of the coating roller, and the rack is symmetrically installed on the base in a left-right sliding mode along the vertical center line of the strip steel of the production line.
4. The steel strip surface roll coating machine of claim 2, further comprising: two first linear guide rails which are arranged in parallel are fixed on the first bottom plate, and the first workbench is fixed on at least two first linear bearings; and two second linear guide rails which are arranged in parallel are fixed on the second bottom plate, and the second workbench is fixed on at least two second linear bearings.
5. The steel strip surface roll coating machine of claim 2, further comprising: the T-shaped horizontal roller frame is a hollow roller frame.
6. The steel strip surface roll coating machine of claim 1, further comprising: and the extending shafts of the coating roller and the liquid taking roller, which are positioned at the transmission side, are respectively connected with a driving motor through a telescopic ball cage catcher.
7. The steel strip surface roll coating machine of claim 1, further comprising: the rotating platform is a rotating circular table.
CN201810295474.1A 2018-03-30 2018-03-30 Roller coater for steel strip surface Active CN110314809B (en)

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CN110314809B true CN110314809B (en) 2021-04-06

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