KR101584945B1 - A self-aligning coating apparatus - Google Patents

A self-aligning coating apparatus Download PDF

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Publication number
KR101584945B1
KR101584945B1 KR1020150145386A KR20150145386A KR101584945B1 KR 101584945 B1 KR101584945 B1 KR 101584945B1 KR 1020150145386 A KR1020150145386 A KR 1020150145386A KR 20150145386 A KR20150145386 A KR 20150145386A KR 101584945 B1 KR101584945 B1 KR 101584945B1
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KR
South Korea
Prior art keywords
holder
roll
collecting
shaft housing
stabilizing
Prior art date
Application number
KR1020150145386A
Other languages
Korean (ko)
Inventor
이현준
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이현준
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Priority to KR1020150145386A priority Critical patent/KR101584945B1/en
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Publication of KR101584945B1 publication Critical patent/KR101584945B1/en

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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/003—Apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/048—Registering, tensioning, smoothing or guiding webs longitudinally by positively actuated movable bars or rollers
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/06—Zinc or cadmium or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
    • C23C2/36—Elongated material
    • C23C2/40—Plates; Strips
    • B65H2402/5211—

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating With Molten Metal (AREA)

Abstract

The present invention relates to a self-aligning type plating apparatus in which a roll is automatically aligned in a furnace by the pressure of a strip, and a self-aligning type plating apparatus according to the present invention comprises a furnace 10 filled with a plating solution; A sink roll 20; A stabilizing roll 30; A plating apparatus comprising a collecting roll (40) and an arm (50) for supporting both ends of the sink roll (20), the stabilizing roll (30), and the collecting roll (40) Wherein said stabilizing roll (30) and said collecting roll (40) are coupled by a flow coupling (60) such that they can flow relative to said arm (50) A second holder 62 coupled to both ends of the first holder 61 and a second holder 62 fixed to the first holder 61 and the second holder 62. The first and second holders 61, And an elastic body (64) interposed between the shaft housing (63) and the first holder (61) or the second holder (62), and the first housing The holder 61 is formed with a concave portion in which the shaft housing 63 and the elastic body 64 are accommodated and has an alphabetical letter 'J' or 'G' The shaft holder 63 is detachably coupled to both open ends of the first holder 61 so that a combined end surface of the first holder 61 and the second holder 62 forms a closed curve, And a restricting plate 63-1 for restricting the first holder 61 and the second holder 62 from both sides is formed at both ends in the axial direction and each of the restricting plates 63- 1), the seat surface (63-2) on which the elastic body (64) is seated is formed.

Description

{SELF-ALIGNING COATING APPARATUS}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface plating apparatus for a steel strip (strip), and more particularly to a self-aligning plating apparatus in which a roll is automatically aligned in a furnace by the pressure of a strip.

Plated steel sheet is superior in corrosion resistance and appearance to steel sheet, and is used in various technical fields such as home appliances, office equipment, and automobile. In particular, the hot-dip galvanized steel sheet is excellent in adhesion of zinc and is easy to be bonded to the surface of home appliances and the like. When the surface of the hot-dip galvanized steel sheet is coated, the adhesion of the coating film is good and the corrosion resistance after coating is excellent.

Such a hot-dip galvanized steel sheet can be obtained by passing a steel sheet through a zinc furnace. A conventional hot-dip galvanizing apparatus capable of producing such a hot-dip galvanized steel sheet is disclosed in Patent Document 1, A structure of a part of a galvanizing apparatus, that is, a structure in which a steel sheet is passed through a hot-dip galvanizing furnace to galvanize the surface of the steel sheet.

The conventional hot-dip galvanizing apparatus includes a melting furnace 1, a sink roll 3, a stabilizing roll 5, a collecting roll 7, and an arm 9 welded to both ends of each roll filled with a hot-dip galvanizing solution. And after the strip S supplied from the outside of the furnace 1 (the long plate-like steel plate as shown in Fig. 1) is changed in the upward direction along the circumference of the sink roll 3, And passes between the sizing roll 5 and the collecting roll 7 to maintain the tightness.

2, the stabbing roll 5 and the collecting roll 7 are welded to the respective arms 9, and the thermal expansion due to the high-temperature plating solution Since the alignment of the rolls is disturbed, the stabilizing rolls 5 and the collecting rolls 7 are replaced at predetermined intervals (if the actual production site is about 10 days, the stabilizing rolls 5 and the collecting rolls 7 are taken out And the used stabilizing rolls 5 and the collecting rolls 7 are subjected to a regeneration process (sort of cleaning). Therefore, there is a problem in that the welding part of the stabbling roll 5, the collecting roll 7 and the arm 9 is separated and the welding is re-consumed in a costly and time-consuming manner.

A further problem is that the quality of the hot-dip galvanized steel sheet is deteriorated due to the poor alignment between the stabilizing roll 5 and the collecting roll 7. The problem of deterioration in quality of the hot-dip galvanized steel sheet is a problem that occurs because the stabilizing roll 5 or the collecting roll 7 is not in constant contact with the strip.

Even though the stabilizing roll 5 and the collecting roll 7 are aligned at room temperature prior to entering the furnace 1 filled with the plating solution, When the stabbling roll 5 and the collecting roll 7 enter the plating liquid of the stabbing roll 5 and the collecting roll 7, the stabbling roll 5 and the collecting roll 7 are intended to be misaligned due to thermal expansion The alignment may not be maintained and it may be arranged at an angle. In this case, as can be seen from Fig. 3, the hot-dip galvanized steel sheet has a periodic pattern (referred to in the industry as the term "wobble marks"), which degrades the quality of the hot-dip galvanized steel sheet For example, hot dip galvanized steel sheets are discarded if they are produced for the purpose of being used as outer sheaths for household appliances.

In addition, if the stabbling roll 5 and the collecting roll 7 do not maintain their intended alignment, the stabbling roll 5 and the collecting roll 7, as can be seen in Fig. 4, There is a problem that the cost and time for replacing or repairing the stabilizing roll 5 and the collecting roll 7 are increased because the surface is worn.

KR 10-2014-0066856 A (June 3, 2014)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a stator and a collecting roll, Which is capable of holding the plating liquid.

The self-aligning type plating apparatus according to the present invention comprises: a furnace filled with a plating liquid; Sink roll; Stabileizing roll; And a collecting roll, and an arm for supporting both ends of each of the sink roll, the stabilizing roll, and the collecting roll, wherein the stabilizing roll and the collecting roll are rotatable about the arm A first holder coupled to both ends of the first holder, and a second holder coupled to the first holder and the second holder such that the first holder and the second holder are coupled to each other by a flow- And an elastic body interposed between the shaft housing and the first holder or the second holder, wherein the first holder has a concave portion in which the shaft housing and the elastic body are accommodated, And the second holder is detachably fastened to both ends of the first holder, and the first holder and the second holder are in the shape of a letter 'J' or 'G' Wherein the shaft housing has a cylindrical shape and a restraint plate for restricting the first holder and the second holder at both ends is formed at both ends in the axial direction, And a seating surface on which the elastic body is seated is formed between each of the restraint plates.

In the self-aligning type plating apparatus according to the present invention, since the stabilizing roll and the collecting roll are automatically aligned by the strip in the furnace, the quality of the plated steel sheet as the product is improved.

In addition, since the alignment between the staving roll and the collecting roll can be maintained for a long period of time, the replacement cycle of the staving roll and the collecting roll is increased compared with the conventional one, and maintenance is easy.

It is also easy to attach and detach the stabilizing roll and the collecting roll to the arm.

1 is a partial schematic view of a conventional hot dip galvanizing apparatus
Fig. 2 is a photograph of a welded portion of a stabbling roll or a collecting roll coupled to an arm
Fig. 3 is a photograph of a hot-dip galvanized steel sheet having periodic patterns
Figure 4 is a photograph of the surface of a stabbling roll or a collecting roll worn out
5 is a partial perspective view of the self-aligning plating apparatus according to the present invention.
Figure 6 is a perspective view of the flow-
7 is a cross-sectional view taken along the line AA '
Figure 8 is an exploded perspective view of the flow-
9 is a perspective view of the shaft housing;
10 is a sectional view taken along the line BB 'in Fig. 9

Hereinafter, a self-aligning plating apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

5 is a partial perspective view of a self-aligning plating apparatus according to the present invention. The self-aligning type plating apparatus according to the present invention includes a furnace 10 filled with a plating solution, a sink roll 20, a stabilizing roll 30, a collecting roll 40 and a sink roll 20, a stabilizing roll ( 30 and the arm 50 supporting both ends of each of the collecting rolls 40 so that the stabbing roll 30 and the collecting roll 40 can move with respect to the arm 50 And is joined by the engaging portion 60.

The structure in which the stabilizing roll 30 and the collecting roll 40 are movably coupled to the arm 50, that is, the specific structure of the flow combining portion 60 is as follows.

FIG. 6 is a perspective view of the flow coupling portion, FIG. 7 is a cross-sectional view taken along line A-A 'of FIG. 6, and FIG. 8 is an exploded perspective view of the flow coupling portion.

The flow coupling portion 60 includes an open first holder 61 fixed to the arm 50, a second holder 62 fastened to both ends of the first holder 61, a first holder 61, 2 shaft 62 and the shaft housing 63 located in the inner space formed by the holder 62 and the shaft holder 63 interposed between the first holder 61 or the second holder 62, And an elastic body 64 for allowing the first holder 61 or the second holder 62 to flow.

The first holder 61 is a component that is fixed to the arm 50 and can house the shaft housing 63. The end of the arm 50 may be formed as a holder. It is preferable that the first holder 61 has an alphabetical letter 'J' or 'G' shape as shown in FIG. 7 because the first holder 61 has a concave portion, And the shaft housing 63 are placed in the concave portion and the second holder 62 is easily engaged.

The second holder 62 is detachably fastened to both ends of the first holder 61 so that the combined end surface of the first holder 61 and the second holder 62 forms a closed curve. The detachable fastening structure has bolt holes 65 formed at both ends of the first holder 61 and both ends of the second holder 62 and both ends of the first holder 61 and the second holder 62 are fastened (66) and a nut (67). Since the shaft housing 63 can be separated and coupled between the first holder 61 and the second holder 62 by using the bolts 66 and the nuts 67, The roll is easily detached from the arm.

The gap between the first holder 61 or the second holder 62 and the shaft housing 63 is 0.5 to 0.8 mm. Generally, if the length of the stabilizing roll 30 and the collecting roll 40 used in the industry is 4 to 6 m, both ends of the stabilizing roll 30 and the collecting roll 40 are 0.5 to 0.8 mm It is sufficient if it can absorb movement of a certain degree.

A gap member (not shown) is provided between both ends of the first holder 61 and the second holder 62 when the gap between the first holder 61 or the second holder 62 and the shaft housing 63 is smaller than the target value, A seam liner such as SUS316L) is inserted to secure a target gap.

Fig. 9 is a perspective view of the shaft housing, and Fig. 10 is a sectional view taken along the line B-B 'in Fig.

The shaft housing 63 is a component that pivotally supports the stabilizing roll 30 or the collecting roll 40 at both ends of the stabilizing roll 30 or the collecting roll 40 so that the stabilizing roll 30 or the collecting roll 40 can freely rotate. The outer shape of the shaft housing is determined in correspondence with the first holder 61 and the second holder 62 so that the outer shape of the shaft housing 63 for the stability of the coupling and for the seating of the elastic body 64, It is preferable that the shape is the same as a shape in which the cut is partly flattened. 9, the axial ends of the shaft housing (the upper surface and the lower surface of the cylinder) are protruded to form a restricting plate 63-1 for restricting the first and second holders 61 and 62 from both sides, And a seating surface 63-2 on which the elastic body 64 is seated is formed between the restraint plates 63-1.

The shaft housing space 63 is formed with an axial accommodation space V into which the end of the shaft of the stabilizing roll 30 or the collecting roll 40 is inserted and the bushing 63-3 Can be inserted so that the stabilizing roll 30 or the collecting roll 40 can easily rotate.

A stopper for preventing the axis of the stabilizing roll 30 or the collecting roll 40 from escaping is provided on the opposite side of the end of the shaft of the stabilizing roll 30 or the collecting roll 40 of the shaft housing 63, (63-4) are formed. It should be noted that the stopper 63-4 should not block all of the shaft accommodation space V because if no impurities of the plating liquid enter the shaft housing 63 and there is no passage to the outside, This is because the lifetime of the roll 30 or the collecting roll 40 is shortened. Accordingly, it is preferable that the stoppers 63-4 are coupled in spaced-apart relation in the shaft accommodating space V in a 'C' shape or in a bar shape having a width smaller than the diameter of the shaft accommodating space V. [

The elastic body 64 is a component that allows the shaft housing 63 to have a slight clearance with respect to the first holder 61 and the second holder 62. [ In the prior art, the conventional problem is that the roll is fixedly coupled to the arm. However, the shaft housing 63 can be fluidly coupled to the arm 50 by the elastic body 64. A concrete form of the elastic body 64 is a flexible graphite or a leaf spring. Flexible graphite has good heat-resisting properties and can maintain the elasticity well in the plating liquid. In the case of leaf spring, it is easy to manufacture. In addition, the elastic body 64 may be a laminate of flexible graphite and leaf spring. In this case, there is an advantage that the shaft housing 63 can maintain the clearance with respect to the first holder 61 and the second holder 62 even if any one elastic body loses a little elastic force.

Hereinafter, the operation of the self-aligning type plating apparatus according to the present invention will be briefly described.

When the strip S is supplied while the sink roll 20, the stabilizing roll 30 and the collecting roll 40 are immersed in the plating liquid of the furnace 10, the strip S is discharged from the sink roll 20, The direction of travel is upward. The strip S is held tight between the stabilizing roll 30 and the collecting roll 40 so that if the alignment of the stabilizing roll 30 or the collecting roll 40 is disturbed, The rolls whose alignment is disturbed are caused to flow so that the state in which the strip S is excessively pressed is eliminated.

10 Furnace 20 Sink Roll
30 Stabilizing roll 40 Collecting roll
50 arm 60 flow coupling portion
61 first holder 62 second holder
63 shaft housing 63-1 restraining plate
63-2 Seat face 63-3 Bushing
63-4 stopper 64 elastic body
65 Volt Holes 66 Volts
67 Nut

Claims (4)

A furnace 10 filled with a plating solution;
A sink roll 20;
A stabilizing roll 30;
The collecting rolls 40 and
And an arm (50) for supporting both ends of each of the sink roll (20), the stabilizing roll (30), and the collecting roll (40)
The stabilizing roll (30) and the collecting roll (40) are coupled by a flow coupling (60) so as to be able to flow with respect to the arm (50)
The flow coupling portion 60 includes an open first holder 61 fixed to the arm 50, a second holder 62 fastened to both ends of the first holder 61, A shaft housing 63 positioned in an inner space formed by the first holder 61 and the second holder 62 and a shaft housing 63 interposed between the shaft housing 63 and the first holder 61 or the second holder 62. [ And an elastic member 64,
The first holder 61 is formed with a concave portion in which the shaft housing 63 and the elastic body 64 are accommodated and has an alphabetical letter 'J' or 'G'
The second holder 62 is detachably coupled to both open ends of the first holder 61 so that a combined end surface of the first holder 61 and the second holder 62 forms a closed curve,
The shaft housing 63 has a cylindrical shape and a restricting plate 63-1 for restricting the first holder 61 and the second holder 62 from both sides is formed at both ends in the axial direction, And a seating surface (63-2) on which the elastic body (64) is seated is formed between each of the restraint plates (63-1) at both ends of the direction.
The method according to claim 1,
Wherein an end of the arm (50) is formed in a holder shape in the first holder (61).
delete The method according to claim 1,
Wherein the elastic body (64) is flexible graphite or plate spring.


KR1020150145386A 2015-10-19 2015-10-19 A self-aligning coating apparatus KR101584945B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101779320B1 (en) * 2017-05-18 2017-09-19 이현준 A coating apparatus with a housing type sink roll and the management method of the same
KR102378019B1 (en) * 2021-01-21 2022-03-24 이현준 A self-aligning coating apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007009311A (en) 2005-07-04 2007-01-18 Sumitomo Metal Ind Ltd Plain bearing device for hot dip metal plating bath

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007009311A (en) 2005-07-04 2007-01-18 Sumitomo Metal Ind Ltd Plain bearing device for hot dip metal plating bath

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101779320B1 (en) * 2017-05-18 2017-09-19 이현준 A coating apparatus with a housing type sink roll and the management method of the same
KR102378019B1 (en) * 2021-01-21 2022-03-24 이현준 A self-aligning coating apparatus

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