WO2022134795A1 - Ensemble machine à enduire à rouleaux horizontal et son procédé de changement de rouleau - Google Patents

Ensemble machine à enduire à rouleaux horizontal et son procédé de changement de rouleau Download PDF

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Publication number
WO2022134795A1
WO2022134795A1 PCT/CN2021/124903 CN2021124903W WO2022134795A1 WO 2022134795 A1 WO2022134795 A1 WO 2022134795A1 CN 2021124903 W CN2021124903 W CN 2021124903W WO 2022134795 A1 WO2022134795 A1 WO 2022134795A1
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WO
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Prior art keywords
roller
coating
trolley
coating head
supporting
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PCT/CN2021/124903
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English (en)
Chinese (zh)
Inventor
陈洁
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中冶南方工程技术有限公司
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Publication of WO2022134795A1 publication Critical patent/WO2022134795A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus 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
    • B05C1/04—Apparatus 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
    • B05C1/08—Apparatus 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

Definitions

  • the invention belongs to the technical field of metallurgical equipment, and particularly relates to a horizontal roller coating unit and a roll changing method of the horizontal roller coating unit.
  • Roller coaters are widely used in cold-rolled strip processing units such as color coating, galvanizing, and silicon steel coating due to their advantages of high film thickness control accuracy and large adaptability of coating liquid viscosity. Due to its small footprint, the horizontal double-sided roller coater is used in many units where strips run horizontally, that is, two coating heads are arranged on a single set of roller coaters, the upper coating head is located above the strip, and the coating strip is The upper surface of the steel; the lower coating head is located under the strip and coats the lower surface of the strip; each coating head has its own coating pan for dipping the coating. Each coating roller has its own coating roller drive system to control the speed of the roller and the thickness of the coating film.
  • the roll coater Because the applicator rolls are prone to wear and need to be replaced, the roll coater has to switch frequently between working and maintenance positions. Conventionally, the operator manually pulls the coating head trolley to and from the work position and the maintenance position, which is inefficient and has a high risk factor. After the roller coater arrives at the maintenance position, the operator usually puts the wire rope on the journals at both ends of the coating roller, and then uses the crane to lift the coating roller for replacement.
  • the coating roller of the lower coating head is easier to operate, but the coating roller of the upper coating head must avoid the frame of the upper coating head trolley when wrapping the wire rope. ), the roller can be lifted and replaced, which is time-consuming, labor-intensive and labor-intensive to operate.
  • the invention relates to a horizontal roller coating unit and a roll changing method of the horizontal roller coating unit, which can at least solve some defects of the prior art.
  • the invention relates to a horizontal roller coating unit, comprising a roller coater, the roller coater comprising a frame, an upper coating head trolley, an upper coating head and a lower coating head trolley mounted on the upper coating head trolley, and the installation
  • the lower coating head on the lower coating head trolley is provided with an upper trolley track and a lower trolley track correspondingly on the frame, and the upper trolley track extends to the outside of the frame and is arranged beside the upper trolley track
  • the roller changing device includes at least one set of supporting arm roller changing mechanism
  • the supporting arm roller changing mechanism includes a supporting arm and a supporting arm driving unit
  • the supporting arm is provided with a supporting arm for supporting the upper coating roller.
  • the supporting part, the supporting arm driving unit drives the supporting arm to move between the roller changing position and the standby position, and in the roller changing position, the supporting part supports the old roller or makes the new roller in the target position.
  • the support arm driving unit includes a lift drive structure for driving the support arm to lift and lower, and a support arm swing drive structure for driving the support arm to rotate and swing in a horizontal plane.
  • the two supporting parts support the roller shafts at both ends of the upper coating roller respectively.
  • the bearing portion is a V-shaped saddle.
  • the upper coating head trolley and/or the lower coating head trolley is configured with a translational drive mechanism.
  • the horizontal roller coating unit further includes a coating roller driving mechanism for driving the rotation of the coating roller, between the coating roller driving mechanism and the upper coating roller, and between the coating roller driving mechanism and the lower coating roller They are connected by quick-release couplings.
  • the present invention also relates to the above-mentioned method for changing the roller of the horizontal roller coating unit.
  • the following steps are included:
  • the roller changing operation of the upper coating roller can be assisted to complete the roller changing operation of the upper coating roller by means of the supporting action of the supporting arm, and the maintenance personnel's time to replace the upper coating roller can be effectively reduced. Difficulty, reduce the workload of maintenance personnel and shorten the operation time.
  • FIG. 1 is a schematic structural diagram of a horizontal roller coating unit provided by an embodiment of the present invention.
  • Fig. 2 is the F-direction view in Fig. 1;
  • FIG. 3 is a schematic structural diagram of a scraper device provided by an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a scraper orientation under two working conditions of a new roller and a repaired roller according to an embodiment of the present invention.
  • an embodiment of the present invention provides a horizontal roller coating unit, including a roller coating machine, the roller coating machine includes a frame 1, an upper coating head trolley 21, and a trolley installed on the upper coating head 21.
  • the upper coating head 22, the lower coating head trolley 31 and the lower coating head 32 installed on the lower coating head trolley 31 are correspondingly provided with an upper trolley track and a lower trolley track on the frame 1.
  • the trolley track extends to the outside of the frame 1, and a roller changing device is arranged beside the upper trolley track.
  • a supporting arm driving unit, the supporting arm 61 is provided with a supporting part for supporting the upper coating roller, and the supporting arm driving unit drives the supporting arm 61 to move between the roller changing position and the standby position. When changing the roll position, the supporting part holds the old roll or makes the new roll in the target position.
  • the upper coating head 22 includes an upper roller frame and an upper coating roller installed on the upper roller frame, wherein, preferably, the upper roller frame is hingedly mounted on the upper coating head trolley 21. Cylinders etc. drive it to rotate in a vertical plane around the hinge axis to approach or move away from the strip running channel.
  • the lower coating head 32 includes a lower roller frame and a lower coating roller installed on the lower roller frame, wherein, preferably, the lower roller frame is hingedly mounted on the lower coating head trolley 31, which can be driven around the hinge by an air cylinder/hydraulic cylinder, etc. The shaft rotates in the vertical plane to approach or move away from the strip running channel.
  • the upper applicator trolley 21 can be equipped with running units such as rollers to facilitate walking on the upper trolley track; similarly, the lower applicator trolley 31 can be equipped with walking units such as rollers to facilitate walking on the lower trolley track.
  • the guiding directions of the upper and lower trolley tracks are parallel to the axial direction of the upper/lower applicator rollers, so as to guide the upper applicator trolley 21 and the lower applicator trolley 31 out of the frame 1.
  • the upper coating head trolley 21 and/or the lower coating head trolley 31 is configured with a translational drive mechanism 4, and the translational drive mechanism 4 can adopt a conventional trolley drive mode, It is not described in detail here; it is preferable that both the upper coating head trolley 21 and the lower coating head trolley 31 are equipped with a translation drive mechanism 4; by configuring the translation drive mechanism 4, the workload of the operator can be significantly reduced, and the positioning accuracy of the trolley can be ensured , so as to effectively improve equipment maintenance efficiency, reduce maintenance costs and maintenance risks.
  • the above-mentioned horizontal roller coating unit also includes a coating roller driving mechanism 5 for driving the rotation of the coating roller to drive the upper coating roller and the lower coating roller to rotate.
  • This coating roller driving mechanism 5 is a conventional structure in this area, and is not made here. Repeat; based on the requirement that the upper coating head 22 and the lower coating head 32 need to be moved out of the frame 1 for maintenance, the above-mentioned coating roller drive mechanism 5 and the upper coating roller, and between the coating roller driving mechanism 5 and the lower coating roller are detachable.
  • connection structure in one of the embodiments, the coating roller driving mechanism 5 and the upper coating roller are connected by a quick-release coupling 51, and the coating roller driving mechanism 5 and the lower coating roller are connected by a quick-release coupling 51,
  • the coating roller driving mechanism 5 and the corresponding roller body can be quickly disconnected and quickly connected, thereby improving the equipment maintenance efficiency.
  • the support arm 61 is arranged below the upper trolley track in a liftable manner, and the support arm drive unit adopts a lift drive device that can drive the support arm 61 to rise and fall, such as an air cylinder, a hydraulic cylinder or other Structure, when the roller coater is in normal production, the support arm 61 is in the standby position, and the standby position is located below the upper trolley track.
  • a lift drive device that can drive the support arm 61 to rise and fall
  • the support arm 61 is driven by the support arm drive unit It rises to its roll changing position, and its supporting part supports the roll to be changed.
  • the upper coating head trolley 21 is provided with a lifting platform and a lifting driving device for driving the lifting platform to rise and fall
  • the upper coating head 22 is installed on the lifting platform
  • the above-mentioned support arm 61 can be fixedly installed Below the upper trolley rail or a swing driving device for driving the support arm 61 to rotate and swing in the horizontal plane is arranged.
  • the support arm driving unit includes a lift drive structure 62 for driving the support arm 61 to rise and fall, and a support arm swing drive structure 63 for driving the support arm 61 to rotate and swing in a horizontal plane. ; Based on this structure, in the standby position, not only the lift drive structure 62 drives the support arm 61 to descend to the lower limit position, but also the support arm swing drive structure 63 drives the support arm 61 to swing to deviate from the position directly below the upper trolley track, such as making The span direction of the support arm 61 swings from the direction perpendicular to the axial direction of the upper coating roller to the direction parallel to the axial direction of the upper coating roller, thereby reducing the space occupied by the above-mentioned roller changing device, and providing maintenance personnel with more maneuverability Space and equipment operability can prevent the support arm 61 from interfering with the movement of the upper coating head trolley 21 and the lower coating head trolley 31 and the like.
  • the number of the above-mentioned supporting arm roller changing mechanism can be a group, and its supporting arm 61 can be designed to have a larger width (the width direction is parallel to the axial direction of the upper coating roller), and two or two supporting arms 61 can be arranged.
  • the supporting arm roller changing mechanism can only drive the supporting arm 61 to rise and fall, and support the roller shafts at both ends of the upper coating roller through its protruding supporting parts or directly support the upper coating roller. Roller body.
  • the above-mentioned roller changing device includes two sets of support arm roll changing mechanisms, the two sets of support arm roll changing mechanisms are arranged at intervals along the axial direction of the upper coating roller, and the two support arms 61 are both located at the roller changing mechanism.
  • the two supporting parts hold the rollers at both ends of the upper coating roller; the method of supporting the rollers at both ends of the upper coating roller makes the operation more reliable, and can avoid contact with the roller body of the coating roller. It can cause damage or prevent the coating liquid on the upper coating roller from adhering to the supporting part.
  • the two supporting arms 61 can be miniaturized and designed, especially when the supporting arm swing driving structure 63 is configured, it is convenient for the supporting arms 61 and the support arm 61 swings to the standby position without occupying the space between the upper trolley rail and the lower trolley rail.
  • the above-mentioned roller changing device includes three or more sets of supporting arm roller changing mechanisms.
  • the above-mentioned support arm swing driving structure 63 includes a swing seat, and conventional rotary drive equipment can be used to drive the swing seat to rotate, for example, through a motor + sprocket mechanism/pulley mechanism, etc., which will not be described in detail here;
  • the above-mentioned support arm 61 is connected with the output end of the lift drive structure 62 and both are arranged on the above-mentioned swing seat.
  • the lift drive structure 62 can adopt conventional lift drive equipment such as air cylinder, hydraulic cylinder or motor+screw mechanism; further A guide structure is provided on the above-mentioned swing seat to guide the lifting motion of the support arm 61 , and the guide structure can adopt a sliding block+slide rail type guiding method or other guiding methods.
  • the lift drive structure 62 includes a lift base, and conventional lift drive equipment can be used to drive the lift base to rise and fall; the support arm 61 is connected to the output end of the support arm swing drive structure 63 and both are arranged
  • the support arm swing driving structure 63 can adopt a conventional rotary driving device, and the specific structure will not be repeated here.
  • the above-mentioned supporting portion preferably adopts a groove-shaped structure, so as to support the upper coating roller stably and reliably; in one embodiment, as shown in FIG. 2 , the supporting portion is a V-shaped saddle 611 .
  • the saddle 611 is rotatably arranged on the support arm 61 and its rotation axis is parallel to the vertical direction, and a saddle rotation driving unit can be provided on the support arm 61, for example, a motor + transmission structure is used to drive the saddle 611 to rotate , the transmission structure can adopt a sprocket transmission structure, a gear transmission structure, a pulley transmission structure, etc., which will not be described in detail here, and an encoder can be configured for the motor of the saddle rotary drive unit;
  • the swing angle of the arm 61 is suitable for the replacement operation of coating rollers with different lengths, and the saddle 611 is driven to rotate by the saddle rotation drive unit to ensure that the corresponding roller can be reliably supported, for example, when there are multiple roller coating rollers
  • the present embodiment also provides a roll changing method of the horizontal roller coating unit, and the method includes:
  • the embodiment of the present invention provides a scraper device, which can be applied to the above-mentioned horizontal roller coating unit to remove impurities remaining on the surface of the upper coating roller and/or the lower coating roller.
  • the scraper device can be arranged on the frame 1, and also It can be arranged on the upper coating head trolley 21/lower coating head trolley 31, and the installation position is determined according to the target cleaning roller.
  • the above-mentioned scraper device includes a scraper frame 100 and a scraper installed at one end of the scraper frame 100.
  • the installation of the scraper on the scraper frame 100 is a conventional structure in the field, which will not be repeated here; further, the scraper device It also includes an adjustment mechanism for adjusting the position of the scraper fixed on the installation base (as mentioned above, it can be the frame 1 or the upper coating head trolley 21/lower coating head trolley 31), and the adjustment mechanism includes a horizontal drive.
  • the middle and the other end of the scraper frame 100 are respectively provided with adjustment sliders, one adjustment slider is connected to the output end of the horizontal drive unit, and the other adjustment slider is connected to the lift drive unit. output connection.
  • the above-mentioned adjustment mechanism is used to adjust the orientation of the scraper, so that the scraper can work at the target position and meet the requirements, including adjusting the line pressure between the scraper and the coating roller 5 to ensure the contact pressure between the scraper and the coating roller 5 uniformity, and adjust the tangent angle between the scraper and the coating roller 5 to ensure the scraper's impurity removal effect.
  • the so-called tangent angle between the doctor blade and the coating roller 5 that is, the angle between the tangent line of the roller surface at the contact point between the doctor blade and the coating roller 5 and the blade surface of the doctor blade. Repeat.
  • the adjusting slider provided in the middle of the scraper frame 100 is defined as the middle slider 102
  • the adjustment slider disposed at the end of the scraper frame 100 is defined as the end slider 101 .
  • the middle sliding block 102 is slidably arranged on the scraper frame 100, and the middle sliding rail can be set on the scraper frame 100 accordingly; the end of the scraper frame 100 and the end sliding block 101 are preferably hinged, and the shaft of the hinge shaft is hinged.
  • the end slider 101 is slidably arranged on the above-mentioned installation foundation, and the end slide rails can be arranged on the installation foundation accordingly.
  • the end slider 101 is connected to the output end of the above-mentioned horizontal drive unit, and the middle slider 102 is connected to the output end of the above-mentioned lift drive unit; of course, the end slider 101 It is also a feasible solution to connect with the output end of the lift drive unit, and the middle slider 102 to connect to the output end of the above-mentioned horizontal drive unit.
  • the scraper device provided in this embodiment adjusts the orientation of the scraper through the cooperation of the horizontal drive unit and the lift drive unit, so that the line pressure and the tangent angle between the scraper and the coating roller 5 meet the requirements, and the automatic adjustment of the orientation of the scraper can be realized.
  • the horizontal drive unit and the lift drive unit can realize the self-locking of the scraper position, which can ensure the working stability of the scraper.
  • the pressure fluctuations encountered by the scraper can be better dispersed to the horizontal drive unit and the lift drive unit, avoiding the reduction of the service life of the scraper and the coating roller 5 caused by the hard contact of the traditional scraper.
  • the above-mentioned horizontal drive unit and lift drive unit respectively use independent linear drive devices, such as air cylinders, hydraulic cylinders, electric push rods, etc., and the actions of the horizontal drive unit and the lift drive unit can be controlled through the central control computer terminal. Amplitude to achieve the desired adjustment effect of the blade orientation.
  • a hydraulic cylinder is used, through the oil circuit design of the hydraulic cylinder, when the contact pressure between the scraper and the coating roller 5 exceeds the set threshold, the pressure regulating circuit and the unloading circuit of the hydraulic cylinder act, on the one hand, the hydraulic cylinder The load on the piston rod remains stable, on the other hand, the contact pressure between the doctor blade and the coating roller 5 can be kept within the normal range accordingly.
  • the adjusting mechanism includes a screw lifter 601 and a matching lifter driving structure 602 .
  • One of the output shafts of the screw lifter 601 is axially horizontal and is configured as the A horizontal drive unit, the other output shaft of the screw lifter 601 is axially vertical and constitutes the lift drive unit.
  • the above-mentioned elevator driving structure 602 is a conventional device, such as a motor + a reducer, etc.; the screw elevator 601 is an existing device, and its specific structure is not repeated here.
  • one end of the worm of the screw lifter 601 is connected with the lifter drive structure 602 and the other end is connected with a drive screw 603, and the adjusting slider at the end of the scraper frame 100 (that is, the above-mentioned end slider 101) is screwed on the
  • the transmission screw 603, that is, the end slider 101 is provided with a nut, and the end slider 101 and the transmission screw 603 constitute a screw mechanism; then the other output shaft 604 of the screw elevator 601 (corresponding to the screw 604 of the screw elevator 601 ) is connected to the above-mentioned middle sliding block 102 , and can drive the middle sliding block 102 to move.
  • the screw shaft of the screw lifter 601 is vertical, and the screw lifter 601 can drive the end slider 101 to move horizontally and drive the middle slider 102 to move up and down.
  • a set of screw elevator 601 is used to adjust the position of the scraper, which can significantly reduce the number of equipment required and equipment investment, with simple structure and high operational reliability; relatively less installation space and operating space are required, especially for double-sided rollers Coating machines and other equipment have a compact layout and limited available space.
  • the scraper frame 100 can be along the direction perpendicular to its surface (the above scraper frame 100 can be a plate body, that is, along the direction perpendicular to its plate surface; that is, along the direction perpendicular to the blade surface of the scraper) for translational movement, that is, the angle between the blade surface of the scraper and the horizontal plane is constant.
  • Embodiments of the present invention provide a method for using the scraper device as described above, including:
  • the orientation of the scraper is adjusted through the cooperation of the horizontal drive unit and the elevating drive unit, so that the line pressure and the tangent angle between the scraper and the coating roller 5 meet the requirements;
  • the scraper is adjusted through the cooperation of the horizontal drive unit and the lift drive unit In the orientation, the doctor blade is kept away from the coating roll 5 in order to change the roll.
  • the tangent angle between the scraper and the coating roller 5 is controlled within the range of 25° to 26°. Compared with other tangent angles, the range of 25° to 26° can obtain the best impurity removal effect.

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Abstract

L'invention concerne un ensemble machine à enduire à rouleaux horizontal et son procédé de changement de rouleau. Une machine à enduire à rouleaux comprend un cadre (1), un chariot à tête de revêtement supérieure (21), une tête de revêtement supérieure (22) montée sur le chariot correspondant (21), un chariot à tête de revêtement inférieure (31), et une tête de revêtement inférieure (32) montée sur le chariot correspondant (31). Un dispositif de changement de rouleau est disposé à côté d'une voie de chariot supérieure. Le dispositif de changement de rouleau comprend au moins un groupe de mécanismes de changement de rouleau à bras de support. Chaque mécanisme de changement de rouleau à bras de support comprend un bras de support (61) et une unité d'entraînement de bras de support. Le bras de support (61) est pourvu d'une partie de support pour supporter et protéger un rouleau de revêtement supérieur. L'unité d'entraînement de bras de support entraîne le déplacement du bras de support (61) entre une position de changement de rouleau et une position d'attente; et au niveau de la position de changement de rouleau, la partie de support supporte un ancien rouleau ou amène un nouveau rouleau à se trouver à une position cible. Le procédé de changement de rouleau réduit efficacement la difficulté de changement de rouleau de revêtement supérieur par le personnel de maintenance, réduisant ainsi la charge de travail du personnel de maintenance et raccourcissant le temps d'exécution.
PCT/CN2021/124903 2020-12-22 2021-10-20 Ensemble machine à enduire à rouleaux horizontal et son procédé de changement de rouleau WO2022134795A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202011529102.4 2020-12-22
CN202011529102.4A CN112536181B (zh) 2020-12-22 2020-12-22 卧式辊涂机组及其换辊方法

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WO (1) WO2022134795A1 (fr)

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CN112536181B (zh) * 2020-12-22 2024-01-26 中冶南方工程技术有限公司 卧式辊涂机组及其换辊方法
CN113262932A (zh) * 2021-04-06 2021-08-17 中国重型机械研究院股份公司 辊涂机
CN113926656A (zh) * 2021-11-23 2022-01-14 涿州北方重工设备设计有限公司 涂蜡机

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CN110385236A (zh) * 2019-07-17 2019-10-29 中国重型机械研究院股份公司 一种四涂头辊涂机
CN112536181A (zh) * 2020-12-22 2021-03-23 中冶南方工程技术有限公司 卧式辊涂机组及其换辊方法

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