EP0499704A1 - Dispositif pour le graissage de pièces en forme de bandes ou de plaques - Google Patents

Dispositif pour le graissage de pièces en forme de bandes ou de plaques Download PDF

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Publication number
EP0499704A1
EP0499704A1 EP91121042A EP91121042A EP0499704A1 EP 0499704 A1 EP0499704 A1 EP 0499704A1 EP 91121042 A EP91121042 A EP 91121042A EP 91121042 A EP91121042 A EP 91121042A EP 0499704 A1 EP0499704 A1 EP 0499704A1
Authority
EP
European Patent Office
Prior art keywords
greasing
workpiece
rollers
roller
frame
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.)
Granted
Application number
EP91121042A
Other languages
German (de)
English (en)
Other versions
EP0499704B1 (fr
Inventor
Georg Gisbert Dipl.-Ing. Zibulla
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.)
Zibulla & Sohn Raziol-Schmierungstechnik GmbH
Original Assignee
Zibulla & Sohn Raziol-Schmierungstechnik GmbH
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
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Application filed by Zibulla & Sohn Raziol-Schmierungstechnik GmbH filed Critical Zibulla & Sohn Raziol-Schmierungstechnik GmbH
Publication of EP0499704A1 publication Critical patent/EP0499704A1/fr
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Publication of EP0499704B1 publication Critical patent/EP0499704B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • 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
    • B05C1/10—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 the liquid or other fluent material being supplied from inside the roller
    • 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
    • B05C1/16—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 only at particular parts of the work
    • B05C1/165—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 only at particular parts of the work using a roller or other rotating member which contacts the work along a generating line
    • 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
    • B21B45/0239—Lubricating
    • B21B45/0245—Lubricating devices
    • B21B45/0248—Lubricating devices using liquid lubricants, e.g. for sections, for tubes
    • B21B45/0251—Lubricating devices using liquid lubricants, e.g. for sections, for tubes for strips, sheets, or plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/18—Lubricating, e.g. lubricating tool and workpiece simultaneously
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S118/00—Coating apparatus
    • Y10S118/15—Roller structure

Definitions

  • the invention relates to a device for greasing workpieces in the form of strips or plates with a plurality of greasing rollers which can be attached to the workpiece surface and / or the lower surface of the workpiece and are provided with fat-permeable material and which are rotatably mounted on a hollow axis arranged in a device frame, through which the lubricant can be fed to the interior of the roller.
  • Devices of this type are used for greasing, in particular of blanks or strip material, which is to be subjected to a punching, rolling, drawing or pressing process.
  • strip material which can also be pre-profiled in the conveying direction, it is necessary for certain deep-drawing steps to grease preferred areas of the sheet to be processed, namely to grease certain areas more and others less and in turn omitting other areas entirely.
  • a hollow axis with a plurality of greasing rollers arranged thereon is provided in a device frame on the workpiece surface and on the workpiece lower surface.
  • the hollow axes are provided with a plurality of closable radial greasing agent outlet bores arranged one behind the other in their longitudinal direction for axially selective loading of the greasing rollers, which can be moved along the hollow axes.
  • This device is already suitable for both partial and complete greasing of a workpiece. Between two different greasing processes, the greasing rollers must first be released from their locks on the respective hollow axis, aligned with the workpiece in accordance with the desired greasing, and locked again.
  • Partial greasing of a different type was previously only possible with a spray system or was carried out manually, for example with a paint roller.
  • This spraying system has critical disadvantages because of its environmental impact and requires complex disposal facilities.
  • the object of the invention is to create a greasing device while avoiding oil losses, which can be used flexibly for the production of different surface divisions of a partial greasing of workpieces without previous conversion measures.
  • the greasing rollers downstream in the direction of passage of the workpiece can overlap the gaps between the upstream greasing rollers.
  • each greasing roller can be attached to the relevant workpiece surface independently of the other in the sense of an infeed in a longer or shorter time interval for greasing.
  • the greasing rollers can be controlled either by a computer program or by a light barrier through the workpiece itself, e.g. by means of a plate or, in the case of continuous strip material, by the work cycle of a forming machine. In this way, such flexibility for selective partial or complete greasing of workpieces is achieved that is not possible with previously known devices.
  • the workpiece can also be greased over its entire width, either on its workpiece surface or workpiece undersurface or on both, since the greasing rollers downstream in the direction of the workpiece overlap the gaps between the preceding greasing rollers and can close with it.
  • each greasing roller is mounted in a separate frame box at both ends in its side cheeks, on which diagonally offset pressure medium cylinders and ball guides connected to the device frame are arranged, from which the frame box with the greasing roller relative to the device frame in the direction of the workpiece as well as moving away from it.
  • Each side cheek of a frame box is screwed to one leg of an L-shaped mounting bracket and is detachably coupled to the piston rod of the pressure medium cylinder, which is fastened to the device frame, by means of a knurled screw which extends through a through opening.
  • pressure medium cylinders and ball guides - also in a diagonal arrangement - are known from DE-PS 35 07 846 on an upper and lower box for their relative adjustment.
  • each ball guide is advantageously assigned a coil spring which balances the weight of the frame box and the greasing roller in such a way that the forces emanating from their weights can be reduced to a minimum when the greasing roller is attached to and removed from the workpiece.
  • These advantageously helical springs encompassing the respective ball guide prevent the breakaway torque of the pressure medium cylinder in relation to the greasing roller. Because if this breakaway torque had to be overcome by the air cylinder, this would have a disproportionately large amount during delivery Acceleration of its piston with the disadvantage that the respective greasing roller would have to abruptly or vibrantly touch the respective workpiece. Another disadvantageous consequence would be an excessive contact pressure with a flattening of the felt roller and an associated insufficient greasing in this workpiece area.
  • each greasing roller is assigned a transmission or self-propelled drive, which continuously or at controllable time intervals gives it a peripheral speed which corresponds to the translation speed of the workpiece.
  • the result is improved both with partial and with full greasing, since there are no acceleration periods and associated slippage.
  • a uniform distribution of the lubricant over the entire inner circumferential surface and thus also over the feed bores takes place in the interior of the greasing roller, thereby preventing the formation of a disadvantageous oil sump within the roller.
  • a compressed air motor is advantageously assigned to each greasing roller as its own drive, which has accelerated the greasing roller to the circumferential speed corresponding to the translation speed of the workpiece before it is placed on the workpiece surface.
  • the drive air for the compressed air motor can be switched off so that the frictional entrainment takes place between the surface of the greasing roller and the workpiece being conveyed.
  • This arrangement has the advantage of a relatively simple embodiment, since there is no special control. However, it goes without saying that with this configuration the compressed air motor can continue to rotate the greasing rollers even after delivery.
  • each greasing roller has a demand-controlled fat agent dosage.
  • the individual greasing roller units which essentially e.g. consist of a greasing roller 17, the frame box 27, the two pressure medium cylinders 34 and the two ball guides 35 can be moved transversely to the workpiece conveying direction 24 in T-grooves 54 and there by means of suitable means, e.g. can be locked using suitable sliding blocks. In this way, the number of greasing rollers used, including what concerns their lateral overlap, can be chosen as desired within the scope of a desired partial greasing.
  • the new device 10 for greasing workpieces 11 has a device frame 12, in which two rows 15, 16 (see FIG. 2) of greasing rollers are located above and below the passage 13, 14 according to arrows 13 and 14 in FIG. 3 17 to 21 are arranged.
  • the greasing rollers 17 to 21 are individually mounted in the device frame 12 and can be attached to the facing workpiece surface 22 or the workpiece lower surface 23 at the same time or at different times for individual greasing.
  • the greasing rollers 20, 21 arranged downstream in the direction of travel of the workpiece 11 according to the arrows 24 in FIGS.
  • the greasing rollers indicated schematically in this regard are only partially numbered (reference numbers 17 to 21).
  • Each row of rollers 16, 17 contains six greasing rollers, which are arranged so as to be offset from one another so that the greasing points T overlap slightly transversely to the direction of passage 24.
  • Assignment numbers are attached to the individual greasing points T, which correlate with the rollers which the greasing points generated in a specific time unit Z.
  • the fourth greasing point from the top left was formed as follows as shown in FIG. 5: During the time unit Z, the roller 17 forms the greasing point T 17, after which the roller 17 is removed from the workpiece surface 22 for four time units Z in order for a further time unit Z to be lowered again to form another greasing point T 17.
  • the rollers T 21 and T 18 were also used, which however form a larger greasing surface T 21 and T 18 had five time units Z available before they were lifted off.
  • Each greasing roller 17 to 21 is advantageously mounted in a separate frame box 27 to 31 at both ends in its side cheeks, which are assigned the reference numbers 32 and 33 in all frame boxes 27 to 31.
  • each greasing roller 17 to 21 can be placed individually with the workpiece surface 22, 23 facing it in and out of the greasing contact.
  • each side cheek 32, 33 of a frame box 27 to 31 is screwed to a leg 40 of an L-shaped bracket 41 by means of the screw 43, and to the other leg 42 by means of the knurled screw 39 which extends through a through opening 44 to the piston rod 38 of the pressure medium cylinder 34 releasably coupled.
  • the pressure medium cylinder 34 in turn is fixed in space on the device frame 12.
  • the passage opening 44 extends transversely to the direction of passage (arrow 24) of the workpiece 11.
  • the upper piston rod shaft 53 is mounted with a large lateral clearance A and with a large clearance clearance B with respect to the passage opening 44. This results in a kind of cardanic bearing of the greasing rollers, whereby a complete contact of the rollers 17 to 21 is ensured on the associated workpiece surfaces 22, 23.
  • Control lines 45, 46 pressurized with compressed air lead from a control center S to the connections 36, 37 of the individual pressure medium cylinders 34.
  • the control lines 45 are connected to the piston side via the connections 36 and the control rod 46 and the connections 37 to the piston rod side of the piston concerned Pressure cylinder 34 acted upon.
  • the control lines 45, 46 for the pressure medium cylinders 34 of the greasing roller 20 of the upper and lower rows are shown in FIG. 3.
  • the control lines 45, 46 leading to the further connections 36, 37 of the pressure medium cylinders 34 of the greasing rollers 17 to 19 and 21 are indicated on the control center S.
  • the greasing rollers 17 to 21 are located above the passage 13, 14 of the workpiece 11 in a position raised therefrom, so that the workpiece surface 22 is kept free from greasing.
  • the pistons of the pressure medium cylinders 34 are acted upon via the control lines 46 and the connections 37 on the piston rod side, as a result of which the piston rod 38 moves into the pressure medium cylinders and thus the corresponding greasing rollers 17 to 21 are lifted off the workpiece surface 22.
  • Control lines 45 and the connections 36 act on the piston sides of the respective pressure medium cylinders 34, whereby the piston rods 38 extend until the greasing rollers 17 to 21 come into greasing contact with the workpiece surface 22.
  • control center S can also be connected to a computer C, via which the control valves in the control center S of the individual control lines 45, 46 can be acted upon accordingly or can be switched off from the compressed air supply.
  • Compressed air has proven itself as a pressure medium because of its rapid responsiveness.
  • each ball guide 35 is assigned a concentrically encircling cylindrical helical spring 47, which has the weight of the frame box 27 to 31 and the greasing rollers 17 to 21 balanced that the forces emanating from their weights are reduced to a minimum when attaching and removing the greasing rollers 17 to 21 on the workpiece 11.
  • Each greasing roller 17 to 21 is also assigned a transmission or self-propulsion, which continuously or at controllable time intervals gives it a peripheral speed which corresponds to the translation speed of the workpiece 11.
  • the own drive advantageously consists of a compressed air motor, not shown.
  • the compressed air motors can also be acted upon by the control center S, since air is required anyway as the control medium for the control lines 45, 46 of the pressure medium cylinder 34.
  • the greasing rollers 17 to 21 have a demand-controlled fat agent dosing device.
  • this fat agent dosing device consists of a time-controlled fat agent feed 51 connected to the hollow axle 48 (see FIG. 3) of the greasing rollers 17 to 21 or, according to a second embodiment, becomes an inlet line 49 indicated in FIG. 3 to the hollow axle 48 used control valve 50 formed with a variable flow cross section.
  • the greasing contact can be made via a light barrier the workpiece 11 itself, for example if it consists of a plate, take place or be carried out in the case of continuous strip material by the work cycle of a forming machine.
  • strip material it is also possible to have all the control processes of the greasing rollers 17 to 21 controlled by a program entered into the computer C. The beginning and the end of the greasing program can also be switched on and ended by a marking, edge or the like of the workpiece itself.
  • the workpiece 11 in the form of a strip or blank is unchangeable in height, it is guided on both sides of its passage 13, 14 both on the workpiece surface 22 and on the workpiece undersurface 23 by rigid support rollers 52 which are invariable in height and which run between the greasing rollers 17 to 21 are attached to the device frame 12. This ensures an exact and vibration-free relative positioning regardless of the respective position of the greasing rollers 17 to 21 swinging up and down on the workpiece surface 22 and / or workpiece surface 23 by the fixed support rollers 52.
  • the invention - in relation to the respective height level - is not limited to a row of greasing rollers or to two rows 15, 16 of greasing rollers 17 to 21 arranged one behind the other on both sides of the workpiece surfaces 22, 23. Rather, both the number of greasing rollers 17 to 21 (as indicated in Fig. 5) as well as the number of rows 15, 16 vary.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Forging (AREA)
  • Coating Apparatus (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
EP91121042A 1991-02-21 1992-01-01 Dispositif pour le graissage de pièces en forme de bandes ou de plaques Expired - Lifetime EP0499704B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4105364A DE4105364C1 (fr) 1991-02-21 1991-02-21
DE4105364 1991-02-21

Publications (2)

Publication Number Publication Date
EP0499704A1 true EP0499704A1 (fr) 1992-08-26
EP0499704B1 EP0499704B1 (fr) 1995-08-23

Family

ID=6425530

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91121042A Expired - Lifetime EP0499704B1 (fr) 1991-02-21 1992-01-01 Dispositif pour le graissage de pièces en forme de bandes ou de plaques

Country Status (7)

Country Link
US (1) US5476546A (fr)
EP (1) EP0499704B1 (fr)
JP (1) JPH0710366B2 (fr)
AT (1) ATE126738T1 (fr)
DE (2) DE4105364C1 (fr)
DK (1) DK0499704T3 (fr)
ES (1) ES2077782T3 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
EP0638376A1 (fr) * 1993-07-17 1995-02-15 ZIBULLA & SOHN GMBH Raziol-Schmierungstechnik Dispositif pour le graissage gouvernable des pièces à usiner à cylindres de graisse actionnés par un moteur avec une courroie de transmission et un arbre menant

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DE4409783C1 (de) * 1994-03-22 1995-05-04 Zibulla & Sohn Gmbh Vorrichtung zum Befetten von Werkstücken in Band- oder Platinenform mit rasch auswechselbaren Befettungswalzen
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US7727598B2 (en) * 2006-05-02 2010-06-01 Boston Scientific Scimed, Inc. Partially roll coated workpiece and methods and systems for making the same
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Also Published As

Publication number Publication date
DE4105364C1 (fr) 1992-05-27
DK0499704T3 (da) 1995-10-02
EP0499704B1 (fr) 1995-08-23
ATE126738T1 (de) 1995-09-15
ES2077782T3 (es) 1995-12-01
DE59203325D1 (de) 1995-09-28
JPH0710366B2 (ja) 1995-02-08
JPH0592160A (ja) 1993-04-16
US5476546A (en) 1995-12-19

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