EP0614727A1 - Automatische Riemen-Einsetzvorrichtung - Google Patents

Automatische Riemen-Einsetzvorrichtung Download PDF

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Publication number
EP0614727A1
EP0614727A1 EP93110253A EP93110253A EP0614727A1 EP 0614727 A1 EP0614727 A1 EP 0614727A1 EP 93110253 A EP93110253 A EP 93110253A EP 93110253 A EP93110253 A EP 93110253A EP 0614727 A1 EP0614727 A1 EP 0614727A1
Authority
EP
European Patent Office
Prior art keywords
inserting device
belt
moving element
supporting structure
automatic belt
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
EP93110253A
Other languages
English (en)
French (fr)
Other versions
EP0614727B1 (de
Inventor
Eligio Bau'
Luciano Costa
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.)
Costa Levigatrici SpA
Original Assignee
Costa Levigatrici SpA
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
Application filed by Costa Levigatrici SpA filed Critical Costa Levigatrici SpA
Publication of EP0614727A1 publication Critical patent/EP0614727A1/de
Application granted granted Critical
Publication of EP0614727B1 publication Critical patent/EP0614727B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/18—Accessories

Definitions

  • the invention concerns an automatic belt-inserting device for the insertion of sand or lamellar belts between the rotating cylinders of a honing machine.
  • the granulometry and the type of abrasive material depend on the working operation to be performed, therefore, the sand belts are replaced both depending on the type of product to be smoothed and on the degree of finish which needs to be obtained on such product.
  • each sand belt is pushed against the piece to be smoothed through a lamellar belt interposed between the cylinder around which the sand belt is wound and the back of the sand belt itself.
  • the present invention realizes an automatic belt-inserting device, whose main purpose is to expedite the replacement operation of the belts on honing machines wherein the top winding cylinders of the belts are arranged at such a height that can not be reached by the operator standing on the ground.
  • Another purpose is for the automatic belt-inserting device of the invention to permit the insertion of the belts without forcing the operator to use any up rised platforms such as stools, ladders or others.
  • the last but not least purpose is that the automatic belts-inserting device of the invention can be used on any kind of honing machine available on the market.
  • an automatic belt-inserting device for honing machines which, in accordance with the main claim, comprises a leading casing with an external convex surface, for the sliding insertion of the belts between the rotating cylinders of a honing machine, and is characterized in that it presents a moving element, to which said leading case is hinged, sliding along a driving unit attached to a supporting structure, said belt-inserting device being provided with displacement means of the moving element along said driving units and with means belonging to said leading case and rotating around the hinge point to the moving element, said means being suited to bring the convex surface of said leading case parallel with the external surface of the cylinder of the honing machine into which the belt needs to be inserted.
  • the supporting structure, to which the driving unit is attached is the structure of the honing machine.
  • the driving unit slides vertically in relation to the structure of the honing machine to which is connected.
  • the supporting structure to which the driving unit is attached is a supporting framework, movable on wheels.
  • the automatic belt-inserting device of the invention not only expedites the replacement operation of the belts, but it also permits to perform more safely the replacement of the belts themselves.
  • the automatic belt-inserting device As can be observed in Fig. 1, the automatic belt-inserting device according to the invention, indicated as a whole with 1, comprises a leading casing, indicated with 2, hinged through a pin 3 to a moving element 4 sliding along a driving unit, indicated as a whole with 5, connected to a supporting structure 6, that, in the described case, consists of the structure of the honing machine, indicated as a whole with 7.
  • the driving unit 5 consists of a pair of vertical uprights 61, each of them presenting their bottom ends attached to the supporting structure 6, through a connecting plate 8, anchored to the supporting structure itself by means of fixing elements, such as screws, and each of the top ends attached directly to the supporting structure 6 itself, as can be observed in particular in the Figs. 3 and 4.
  • leading casing 2 With regard to the leading casing 2, it will be observed that it consists essentially of an external surface 21, having a convex profile, which can rotate around a pin 3 hinged to the moving element 4, belonging to the driving unit 5, through rotating means.
  • said rotating means consist of a pneumatic cylinder 22 presenting the end 24 of its body 23 hinged to the moving element 4, and the end 25 of its stem 26 hinged to the external surface 21 of the leading casing 2.
  • the moving element 4 is attached, through a connecting element 41, to the sliding element of the displacement means, which, in the described case, consists of the piston of a cylinder without stem 42 which presents its body 43 attached to the supporting structure 6, consisting of the frame of the honing machine, and the piston which slides axially in the interior of said body 43 (not represented in the Fig.), and is connected to the connecting element 41.
  • the sliding element of the displacement means which, in the described case, consists of the piston of a cylinder without stem 42 which presents its body 43 attached to the supporting structure 6, consisting of the frame of the honing machine, and the piston which slides axially in the interior of said body 43 (not represented in the Fig.), and is connected to the connecting element 41.
  • the rotation occurs by acting on the rotating cylinder 22 through a push-button or other mechanism of control belonging to the pneumatic feeding circuit of the cylinder itself, and attached to the supporting structure 6, which is not represented in the Fig. for the purpose of simplifying the description.
  • the displacement cylinder 42 When the leading casing 2 is arranged in its horizontal position, the displacement cylinder 42, visible in Fig. 8,is activated through another control push-button, and it lowers the moving element 4 vertically toward the bottom by causing it to slide along the driving rods 61, so as to bring it into the most suitable position for receiving the sand belt 72, as can be observed in the Figs. 3 and 4, whenever the belt itself is pushed by an operator following direction 73.
  • the sand belt 72 can be inserted into the leading casing 2 manually by the operator performing the insertion.
  • a pneumatic sensor 28 connected with the feeding circuit of the rotating and displacement cylinders 22 and 42 respectively, as well as with the control push-buttons, such a sensor automatically controlling the displacement cylinder 42, when sensing the presence of belt 72, so that the moving element 4, the leading casing 2 and the sand belt 72 inserted into on it, are driven vertically toward the top, following the direction represented in Fig. 4 and indicated by arrow 45.
  • the sand belt 72 is placed in front of the top rotating cylinder 71 and it can be easily make to slide on the external surface of the top rotating cylinder 71 itself by the operator exerting another pressing action on the side of the sand belt 72 itself, following the direction of arrow 73.
  • a different embodiment of the automatic belt-inserting device according to the invention based on the same idea of solution and suitable to be used in particular on honing machines into which the sand belt is driven by a lamellar belt, is represented in the Figs. 9, 10 and 11 wherein is indicated with 101.
  • Such a different embodiment is applied to a honing machine supplied with lamellar belts, represented in Fig. 9 and indicated as a whole with 107, where it can be observed that the lamellar belt 201 is supported by an intermediate rotating cylinder 202, arranged parallel and at a lower position in relation to the top rotating cylinder 171, around which the corresponding sand belt is wound, which is not represented in the Fig. in order to simplify the description.
  • the driving unit 105 is attached to the end 35 of the stem 36 of a pneumatic cylinder 32, whose body 33 is connected in correspondence with the end 34, to the supporting structure 106, consisting, in this case too, of the framework of the honing machine 107.
  • the driving rods 161 will present each, only their bottom end connected with the supporting structure 106 itself, again through the interposition of the connecting plate 108 attached to the supporting structure 106 itself, wherein the ends of said rods 161 are sliding, being coupled in the interior of the driving seats 181 obtained in the connecting plate 108 itself.
  • the body of the cylinder without item 142, which causes the moving element 104 to move is connected with the bottom ends of said rods 161, therefore it moves integrally with them and with the whole driving unit 105, whenever the latter is vertically displaced by the pneumatic cylinder 32.
  • the driving unit 105 in order to remove or to insert the sand belts, the driving unit 105 has to be brought into its utmost upright position, as represented in Fig. 9, so that the leading case 102 is lined up with the top rotating cylinder 171 of the honing machine 107, whereas, in order to remove or to insert the lamellar belt 201, the driving unit 105 has to be displaced toward the bottom, as observed in Fig. 10, so that the same leading casing 102 is lined up with the intermediate rotating cylinder 202 supporting the lamellar belt 201 itself.
  • FIG. 12 Another different embodiment is represented in the Figs. 12 and 13, wherein it can be observed that the belt-inserting device according to the invention, indicated as a whole with 301, is attached to a supporting structure 306, which, in this case, consists of a trolley 40 movable by means of the wheels 41.
  • the driving unit 305 consists of a pair of vertical rods 361, each of them attached, at their bottom end, to the supporting structure 306, through the interposition of a connecting plate 308.
  • the automatic belt-inserting device reaches, first of all, the main purpose of expediting the replacement operation of the belts on honing machines, wherein the top winding cylinders of the belts are arranged at such a height that is not reachable directly by the operator standing on the ground.
  • the described different embodiment reaches the mentioned purposes too, with the additional advantage of permitting the replacement of the lamellar belts too, in case the honing machine is provided with them.
  • the automatic belt-inserting device according to the invention can undergo constructive modifications, with the purpose of improving its performance or of making it more economical. All said possible variations must, however, be considered within the scope protected by the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Replacement Of Web Rolls (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
EP93110253A 1993-02-11 1993-06-28 Automatische Riemen-Einsetzvorrichtung Expired - Lifetime EP0614727B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVI930019 1993-02-11
IT93VI000019A ITVI930019A1 (it) 1993-02-11 1993-02-11 Infilanastri automatico

Publications (2)

Publication Number Publication Date
EP0614727A1 true EP0614727A1 (de) 1994-09-14
EP0614727B1 EP0614727B1 (de) 1996-05-22

Family

ID=11425106

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93110253A Expired - Lifetime EP0614727B1 (de) 1993-02-11 1993-06-28 Automatische Riemen-Einsetzvorrichtung

Country Status (4)

Country Link
EP (1) EP0614727B1 (de)
AT (1) ATE138305T1 (de)
DE (1) DE69302802T2 (de)
IT (1) ITVI930019A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0691179A3 (de) * 1994-07-08 1996-04-10 Scm Group Autec Division Spa Vorrichtung zum Erleichtern das Montieren von Schleifbändern auf Schleifmaschinen, insbesondere für Holztafeln
JP2008044067A (ja) * 2006-08-15 2008-02-28 Toyo Tekkosho:Kk 研磨ベルト装着装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6224957A (ja) * 1985-07-23 1987-02-02 Takegawa Tekko Kk ベルトサンダ−機のベルト掛け装置
JPS62156005A (ja) * 1985-12-27 1987-07-11 Ishikawajima Harima Heavy Ind Co Ltd 研削ベルト用カ−トリツジ及びロ−ル研削装置
DE3904704C1 (en) * 1989-02-16 1990-04-26 Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De Device for the mechanised, independent fitting of a new endless grinding belt onto a freely movable belt-grinding machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6224957A (ja) * 1985-07-23 1987-02-02 Takegawa Tekko Kk ベルトサンダ−機のベルト掛け装置
JPS62156005A (ja) * 1985-12-27 1987-07-11 Ishikawajima Harima Heavy Ind Co Ltd 研削ベルト用カ−トリツジ及びロ−ル研削装置
DE3904704C1 (en) * 1989-02-16 1990-04-26 Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De Device for the mechanised, independent fitting of a new endless grinding belt onto a freely movable belt-grinding machine

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 11, no. 205 (M - 603)<2652> 3 July 1987 (1987-07-03) *
PATENT ABSTRACTS OF JAPAN vol. 11, no. 388 (M - 652) 18 December 1987 (1987-12-18) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0691179A3 (de) * 1994-07-08 1996-04-10 Scm Group Autec Division Spa Vorrichtung zum Erleichtern das Montieren von Schleifbändern auf Schleifmaschinen, insbesondere für Holztafeln
JP2008044067A (ja) * 2006-08-15 2008-02-28 Toyo Tekkosho:Kk 研磨ベルト装着装置

Also Published As

Publication number Publication date
ITVI930019A0 (it) 1993-02-11
ATE138305T1 (de) 1996-06-15
DE69302802D1 (de) 1996-06-27
ITVI930019A1 (it) 1994-08-11
DE69302802T2 (de) 1997-01-23
EP0614727B1 (de) 1996-05-22

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