EP0041863B1 - Spray unit for rolling mill - Google Patents

Spray unit for rolling mill Download PDF

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Publication number
EP0041863B1
EP0041863B1 EP81302550A EP81302550A EP0041863B1 EP 0041863 B1 EP0041863 B1 EP 0041863B1 EP 81302550 A EP81302550 A EP 81302550A EP 81302550 A EP81302550 A EP 81302550A EP 0041863 B1 EP0041863 B1 EP 0041863B1
Authority
EP
European Patent Office
Prior art keywords
manifold
spray
diaphragm
nozzles
conduit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP81302550A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0041863A2 (en
EP0041863A3 (en
Inventor
George Thomas Frederick Kilmister
Walter Kammerling
Kenneth Russell Sprague
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Davy Mckee Poole Ltd
Original Assignee
Davy Mckee Poole Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10513962&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0041863(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Davy Mckee Poole Ltd filed Critical Davy Mckee Poole Ltd
Priority to AT81302550T priority Critical patent/ATE11236T1/de
Publication of EP0041863A2 publication Critical patent/EP0041863A2/en
Publication of EP0041863A3 publication Critical patent/EP0041863A3/en
Application granted granted Critical
Publication of EP0041863B1 publication Critical patent/EP0041863B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0233—Spray nozzles, Nozzle headers; Spray systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/06—Lubricating, cooling or heating rolls
    • B21B27/10—Lubricating, cooling or heating rolls externally

Definitions

  • This invention relates to a spray unit for supplying cooling and/or lubricating liquid to the rolls of a rolling mill or to the material being rolled therein.
  • the invention relates to a spray unit for a rolling mill, the unit being of the type comprising a spray bar which is adapted to be mounted adjacent the mill rolls and which has a manifold for continuously supplying liquid, a series of spray nozzles or sets of spray nozzles carried by, and spaced along, the spray bar and connected to a conduit; and, for each nozzle or sets of nozzles, a valve for controlling liquid flow from the manifold to the conduit, and fluid- operated controlling means for controlling the valve between an obturation position in which it prevents flow to the conduit and an open position in which liquid can pass to the conduit and thence to the spray nozzle or sets of nozzles.
  • the spray unit of that patent specification employs a spool valve consisting of a valve body reciprocatably mounted in a bore which communicates with the manifold. At one end, the valve body carries a seal which can engage with a valve seat at an end of the bore. The valve body is. urged into the closed position by a helical spring and can be moved against the action of the spring into the open position by supplying compressed air supplied to a chamber formed between the other end of the bore and a piston carried by the valve body. When the valve is opened, coolant from the manifold can pass to the conduit connected to the spray nozzle or nozzles.
  • each valve 'must have high reliability and must have a low response time.
  • the large number of valves on a rolling mill and the frequency of operation of each necessitates high reliability over a relatively long period, if disruption of the mill operation is to be avoided.
  • each valve must respond quickly to detection of non-flatness to minimise the production of non-flat product.
  • a valve of the type disclosed in DE-A-2432012 would not fulfil the above requirements. Detritus in the coolant would rapidly mar the contacting surfaces of the bore, the piston and the seal and cause breakdown of the valve in a relatively short time. Equally, the inertia of the valve body and the spring would ensure an unacceptably long response time.
  • the valve is a disc-like, peripherally-clamped, flexible diaphragm of substantially uniform thickness and section; such a diaphragm-type valve is already known per se from US-A-3863841.
  • the valve is normally in the . open position, but is closed by flexure of the diaphragm into the obturating position, in which it closes an end portion of the conduit, solely by pressurable fluid of the controlling means acting directly on the diaphragm, the flexing of the diaphragm to the obturating position being in the direction of liquid flow from the manifold to the conduit.
  • the only moving part of the valve is the diaphragm which has minimal inertia and which is little affected by the detritus in the liquid.
  • the diaphragm is not engaged by any spring or the like, liable to cause wear of the diaphragm. Because the diaphragm flexes to the closed position of the valve in the direction of flow of the liquid, the pressure of the liquid assists in holding the valve closed, and, because the thickness and section of the diaphragm are substantially uniform, there is no discontinuity of strength across its area liable to cause breakdown.
  • a rolling mill 2 has two roll assemblies, exemplified by work roll 4 and back-up roll 8, and work roll 6 and back-up roll 10.
  • a workpiece W is shown as being rolled between the two assemblies.
  • the mill is provided with spray bars 12, 14 arranged adjacent the mill and parallel to the roll axes.
  • the spray bar 12 has spaced along its length sets of nozzles, each set comprising a jet nozzle 16 for directing fluid to the top back-up roll, a nozzle 18 for directing fluid to the top work roll and a nozzle 20 for directing fluid to the upper side of the workpiece.
  • Spray bar 14 is similar, having nozzles 22, 24 and 26 for directing fluid to the bottom back-up roll, the bottom work roll and the underside of the workpiece respectively.
  • spray bar 14 is formed as a manifold 28 having a chamber 30 and an adaptor 32 is threaded into the manifold.
  • a nozzle bar 34 attached to the manifold 28 has, for each set of nozzles, three passages 21, 23 and 25 which open to the exterior of the nozzle bar and which are threaded to receive the jet nozzles 22, 24 and 26.
  • the passages 21, 23, 25 open to a normally plugged blind hole 36 within the nozzle bar 34, communicating with a tapped hole 42 aligned with an opening 40 through the adjacent wall of the manifold 28.
  • a tubular member 38 passes through the hole 40 in the manifold and is threaded into tapped hole 42 there being one tubular member 38 in respect of each set of nozzles. As shown, member 38 extends across the chamber 30, i.e. transversely of the roll axes and partly into an opening in the opposite wall of the manifold 28.
  • Each set of jet nozzles 22, 24, 26 has its own control valve for controlling flow of lubricant from manifold chamber 30 to the nozzles.
  • Each valve is similar and comprises an enclosure plate 44 secured to the exterior of manifold 28 by means of nuts 46 threaded on to studs 48, and defining compartment 50 aligned with the open end of tubular member 38.
  • a pipe 52 is connected to a tube 54 which connects with the compartment 50 at 56.
  • a diaphragm 58 conveniently made of a flexible polyurethane material, is securely clamped between the plate 44 and the manifold 28, so that it closes off compartment 50 and the opening in the adjacent wall of the manifold; the diaphragm is spaced slightly from the end of member 38, there being normally a gap. between the adjacent face 60 of the tubular member 38 and the face of the diaphragm.
  • a supply of compressed air is provided and this is fed as desired from each pipe 52 and tube 54 to the respective compartment 50 to deflect the diaphragm 58 into firm contact with the face 60 of the tubular member 38, thereby to close off the nozzle set and prevent the passage of lubricant from the manifold chamber 30 to the nozzles.
  • Coolant/lubricant fluid under pressure is supplied via the adapter 32 in the chamber 30 of the manifold 28.
  • lubricant passes through the bore of that member into hole 36, and thence to the jet nozzles 22, 24, 26 to spray on to the rolls 6, 10 and the workpiece W.
  • valves constituted by the diaphragms 58 in Figure 2 may alternatively be operated under electrical control, by means of a solenoid for each valve and a control circuit for selectively energising the solenoids to bring the diaphragms 58 into obturating positions in relation to the ends of the member 38.
  • valves The electrical operation of the valves is illustrated in Figure 3 and 4, where the spray bar 14 is shown in outline, with the nozzles, represented by the uppermost 26, projecting therefrom.
  • the enclosure 50 of each valve is dispensed with and plate 44 is replaced by a housing 70 containing the solenoid for the respective diaphragm 58.
  • a separate line 72 for each valve leads from a control box 74 to the respective solenoid, which is also connected to a common return line 76. Selective energisation of lines 72 results in selected valve diaphragms 58 being brought to the closed positions.
  • Figure 4 shows a generally similar arrangement, but using encoded signals on a common control line 72.
  • the control box 74 incorporates an encoder which emits on line 72 a coded signal according to the particular valve that is required to be operated.
  • Latched solenoids are employed and each has a decoder which decodes any signal designated for it and passes it to the solenoid to change over the condition of the latter.
  • Control of individual valves may be effected manually or patterns of valves may be selected automatically under computer control.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles (AREA)
  • Metal Rolling (AREA)
  • Control Of Metal Rolling (AREA)
EP81302550A 1980-06-11 1981-06-09 Spray unit for rolling mill Expired EP0041863B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81302550T ATE11236T1 (de) 1980-06-11 1981-06-09 Spruehvorrichtung fuer walzwerk.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8019061 1980-06-11
GB8019061 1980-06-11

Publications (3)

Publication Number Publication Date
EP0041863A2 EP0041863A2 (en) 1981-12-16
EP0041863A3 EP0041863A3 (en) 1982-03-31
EP0041863B1 true EP0041863B1 (en) 1985-01-16

Family

ID=10513962

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81302550A Expired EP0041863B1 (en) 1980-06-11 1981-06-09 Spray unit for rolling mill

Country Status (5)

Country Link
EP (1) EP0041863B1 (ja)
JP (1) JPS5728605A (ja)
AT (1) ATE11236T1 (ja)
CA (1) CA1155650A (ja)
DE (1) DE3168285D1 (ja)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58185303U (ja) * 1982-06-03 1983-12-09 日立造船株式会社 圧延機のスプレ−バ−冷却装置
JPS58185304U (ja) * 1982-06-03 1983-12-09 日立造船株式会社 圧延機のスプレ−バ−冷却装置
JPS59143505U (ja) * 1983-03-16 1984-09-26 株式会社神戸製鋼所 ロ−ルク−ラント供給装置
JPS6020302U (ja) * 1983-07-15 1985-02-12 三菱マテリアル株式会社 圧延設備における圧延ロ−ル冷却装置
GB8326652D0 (en) * 1983-10-05 1983-11-09 Davy Mckee Sheffield Rolling mill
GB8404387D0 (en) * 1984-02-20 1984-03-28 Davy Mckee Poole Applying liquid for rolling mill
EP0205295B1 (en) * 1985-06-10 1990-12-05 DAVY McKEE (POOLE) LIMITED Improvements relating to the lubrication of rolling mills
GB8514598D0 (en) * 1985-06-10 1985-07-10 Davy Mckee Poole Lubrication of rolling mills
DE19503544A1 (de) * 1995-02-03 1996-08-08 Achenbach Buschhuetten Gmbh Walzenkühl- und/oder Schmiervorrichtung für Kaltbandwalzwerke, insbesondere Feinbandwalzwerke
DE102007005049A1 (de) * 2007-01-26 2008-07-31 TRüTZSCHLER GMBH & CO. KG Vorrichtung in der Spinnereivorbereitung zum Abscheiden von Fremdstoffen an einer Fördereinrichtung für Fasermaterial, z.B. Baumwolle, Chemiefasern o. dgl.
GB2466458B (en) 2008-12-19 2011-02-16 Siemens Vai Metals Tech Ltd Rolling mill temperature control
CN111790531A (zh) * 2020-06-24 2020-10-20 泗县曰森机械科技有限公司 一种用于分段冷却系统上的微型电磁喷射阀

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2184247A5 (ja) * 1972-05-08 1973-12-21 Berthoud Sa
US3807641A (en) * 1973-01-15 1974-04-30 Advance Prod Corp Spray head
US3880358A (en) * 1973-08-15 1975-04-29 Edward J Schaming Coolant distribution and control system for metal rolling mills and the like
AU501706B2 (en) * 1975-07-31 1979-06-28 Automatic Switch Company Diaphragm valve
DE2628238A1 (de) * 1976-06-24 1978-01-05 Gerhard Dr Ing Kunz Ventil zum aufrechterhalten von gegendruecken in von medien durchstroemten leitungen
US4081141A (en) * 1976-09-27 1978-03-28 Almo Manifold And Tool Company Spray bars for metal rolling and flow control valves
DE2652845A1 (de) * 1976-11-20 1978-05-24 Schloemann Siemag Ag Einrichtung zum kuehlen der arbeitswalzen von warmbandstrassen
JPS5337167A (en) * 1977-09-09 1978-04-06 Hitachi Ltd Roll coolant spray control device
US4167247A (en) * 1978-01-06 1979-09-11 Sons Mack D Spray control apparatus

Also Published As

Publication number Publication date
EP0041863A2 (en) 1981-12-16
CA1155650A (en) 1983-10-25
EP0041863A3 (en) 1982-03-31
ATE11236T1 (de) 1985-02-15
JPH0248322B2 (ja) 1990-10-24
JPS5728605A (en) 1982-02-16
DE3168285D1 (en) 1985-02-28

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