EP0967047A2 - Schleifscheibentragvorrichtung zum Schärfen von kreisförmigen oder endlosen Messerklingen - Google Patents

Schleifscheibentragvorrichtung zum Schärfen von kreisförmigen oder endlosen Messerklingen Download PDF

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Publication number
EP0967047A2
EP0967047A2 EP19990108402 EP99108402A EP0967047A2 EP 0967047 A2 EP0967047 A2 EP 0967047A2 EP 19990108402 EP19990108402 EP 19990108402 EP 99108402 A EP99108402 A EP 99108402A EP 0967047 A2 EP0967047 A2 EP 0967047A2
Authority
EP
European Patent Office
Prior art keywords
grinding wheel
support assembly
wheel support
assembly according
guide
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.)
Withdrawn
Application number
EP19990108402
Other languages
English (en)
French (fr)
Inventor
Renato Matteucci
Mauro Biagioni
Giuseppe Lupi
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.)
Italconverting Srl
Original Assignee
Italconverting Srl
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 Italconverting Srl filed Critical Italconverting Srl
Publication of EP0967047A2 publication Critical patent/EP0967047A2/de
Withdrawn legal-status Critical Current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
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/56—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of slicing bands
    • 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
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/36—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades
    • B24B3/46—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades of disc blades
    • 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/04—Headstocks; Working-spindles; Features relating thereto
    • 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
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
    • 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
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/20—Drives or gearings; Equipment therefor relating to feed movement

Definitions

  • the present invention relates to a grinding wheel support assembly for sharpening circular or endless blades, particular suitable for cutting-off machines intended for cuffing logs of sheet material, such as paper, tissue paper, non-woven fabric, plastics, etc.
  • logs are initially produced and must subsequently be cut into rolls of the desired length. This is done by special cuffing-off machines which have one or more disc or rotating band blades, which are cyclically lowered onto the logs that are to be cut, which are fed in special channels.
  • the cutting cycles are very frequent, therefore after a very short time the cutting blade becomes worn through the effect of friction, causing uneven cutting which affects the aesthetic quality of the product. It is therefore necessary for the cutting blades to be kept sharpened by means of sharpening discs or grinding wheels which are constantly or periodically brought into contact with the profile of the cutting blade.
  • grinding wheels are mounted for each cutting blade, in staggered positions along the circumference of the blade, one facing one surface of the cutting blade and the other facing the opposite surface.
  • Said grinding wheels are set in rotation, for example, by means of electric motors, air turbines and the like and they are caused to move forward toward the cutting blade by pneumatic or hydraulic cylinders or similar actuators.
  • the object of the invention is to eliminate these drawbacks, providing a grinding wheel support assembly for sharpening circular and endless blades that is practical, economical and easy to produce.
  • the grinding wheel support assembly for sharpening circular or endless blades comprises a system of guides with a prismatic or other geometric shape.
  • the grinding wheel support can thus slide in these guides thanks to a compressed air pneumatic system , with dry or lubricated air according to requirements, which decreases the sliding friction between the guide and the grinding wheel support and at the same time ensures that they are clean by blowing out the waste caused by sharpening. In this manner, the waste caused by contact of the grinding wheels with the cutter disk is constantly blown away, thus avoiding dirt deposits on the product and on the mechanical parts of the cutting-off machine.
  • the grinding wheel support assembly for sharpening circular or endless blades according to the invention is described with the aid of the figures.
  • a grinding wheel 7 which is substantially disc-shaped, is force-fitted onto a rotating shaft 6.
  • the rotating shaft 6 is supported by a grinding wheel support 5 and is set in rotation by means of an electric motor M.
  • the grinding wheel support 5 and the motor M are supported by a support 4 which is connected to a piston rod 3 of a pneumatic cylinder 2, mounted on a base 1.
  • the pneumatic cylinder 2 by means of the piston 3, pushes the support 4 and thus causes the grinding wheel to move forward and come into contact with the cutter disc.
  • Two slides 8 are connected integrally in the undersurface of the support 4, said slides having a substantially rectangular shape in section and having a cusp-shaped or V-shaped hollow 9 able to form a sliding track.
  • the slides 8 are secured to the undersurface of the support 4, for example, by means of bolts passing through holes 19 made transversally in the slides 8 and screwing into the body of the support 4. It is obvious, however, that the slides 8 can be made in a single body with the support 4.
  • a through channel 10 is made longitudinally in each slide 8 passing through the whole length of the slide.
  • One end of the channel 10 is closed by means of a dowel or screw means 11 and the other end is joined to an air inlet channel 12, connected to the pneumatic system of the machine.
  • each face of the V-shaped hollow 9 there is a longitudinal groove 14 that is put in communication with the respective channel 10 by means of transverse channels 13.
  • a flow of dry or lubricated air according to requirements, is injected under pressure into the channel 10, this air flow exits from the transverse channels 13 and, following the grooves 14, sweeps the waste caused during sharpening from the surface of the V-shaped hollow 9.
  • a prismatic guide 15 Integrally locked above the base 1 is a prismatic guide 15 with a substantially T-shaped section, with the two lateral ends 16 having a pointed wedge shape, complementary to the V shape of the hollows 9 made in the slides 8.
  • the slides 8, integral with the support 4 that supports the grinding wheel support 5, are free to slide along the guide 15, through engagement of the wedge-shaped ends 16 in the respective V-shaped hollows 9.
  • a flow of air is injected into the channels 10
  • this flow exits from the small holes 13 and diffuses over the surface of the V-shaped hollows 9 through the grooves, forming an air cushion between said hollows and the respective wedge-shaped ends 16 of the guide 15.
  • This air cushion considerably reduces the sliding friction between the slides 8 and the guide 15.
  • one or more channels in addition to or in place of the channels 10 and the holes 13 made in the slide 8, provision can be made for one or more channels to be made longitudinally in the guide 15, put into communication by means of transverse holes with the two lateral surfaces of the wedge-shaped ends 16.
  • the flow of dry or lubricated air is injected into said channels made in the guide 15, said flow spreads through the communication holes over the surfaces of the ends 16 of the guide 15 and over the surfaces of the hollow 9 producing the same anti-friction and cleaning effect obtained in the preceding embodiment.
  • the position of the slides 8 and the guide 15 can be inverted with respect to what was previously described and illustrated in the drawings.
  • the slides 8 can be made integral with the base 1, acting as guides
  • the guide 15 can be made integral with the support 4, acting as a slide.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP19990108402 1998-06-26 1999-04-29 Schleifscheibentragvorrichtung zum Schärfen von kreisförmigen oder endlosen Messerklingen Withdrawn EP0967047A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI981482 1998-06-26
IT98MI001482 IT1301829B1 (it) 1998-06-26 1998-06-26 Gruppo di supporto mole per l'affilatura di lame circolari o anastro

Publications (1)

Publication Number Publication Date
EP0967047A2 true EP0967047A2 (de) 1999-12-29

Family

ID=11380341

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990108402 Withdrawn EP0967047A2 (de) 1998-06-26 1999-04-29 Schleifscheibentragvorrichtung zum Schärfen von kreisförmigen oder endlosen Messerklingen

Country Status (2)

Country Link
EP (1) EP0967047A2 (de)
IT (1) IT1301829B1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110299806A1 (en) * 2010-06-08 2011-12-08 Leonid Kashchenevsky Spindle, shaft supporting device and method of supporting a rotatable shaft
CN106586653A (zh) * 2016-11-25 2017-04-26 浙江东方职业技术学院 全自动在线打磨定宽分切机
CN106826242A (zh) * 2017-01-13 2017-06-13 广州群彧机械有限公司 一种材料切割机
CN110666640A (zh) * 2019-11-07 2020-01-10 东海县咖萨克水晶有限公司 一种水晶制品用抛光装置
JP2020025989A (ja) * 2018-08-09 2020-02-20 株式会社ディスコ 研削装置
CN111152092A (zh) * 2018-10-22 2020-05-15 山东泰鹏智能家居股份有限公司 自动打磨设备
CN114714240A (zh) * 2021-01-06 2022-07-08 韩商未来股份有限公司 研磨装置及研磨方法

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110299806A1 (en) * 2010-06-08 2011-12-08 Leonid Kashchenevsky Spindle, shaft supporting device and method of supporting a rotatable shaft
CN106586653A (zh) * 2016-11-25 2017-04-26 浙江东方职业技术学院 全自动在线打磨定宽分切机
CN106826242A (zh) * 2017-01-13 2017-06-13 广州群彧机械有限公司 一种材料切割机
JP2020025989A (ja) * 2018-08-09 2020-02-20 株式会社ディスコ 研削装置
CN111152092A (zh) * 2018-10-22 2020-05-15 山东泰鹏智能家居股份有限公司 自动打磨设备
CN110666640A (zh) * 2019-11-07 2020-01-10 东海县咖萨克水晶有限公司 一种水晶制品用抛光装置
CN114714240A (zh) * 2021-01-06 2022-07-08 韩商未来股份有限公司 研磨装置及研磨方法
CN114714240B (zh) * 2021-01-06 2024-11-15 韩商未来股份有限公司 研磨装置及研磨方法

Also Published As

Publication number Publication date
ITMI981482A1 (it) 1999-12-26
IT1301829B1 (it) 2000-07-07

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