EP2241401B1 - Belt sanding machine - Google Patents

Belt sanding machine Download PDF

Info

Publication number: EP2241401B1
Authority: EP; European Patent Office
Prior art keywords: sanding; machine; unit; guiding element; sanding unit
Prior art date: 2009-04-15
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.): Not-in-force

Application number

EP10159867A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP2241401A1 (en

Inventor

Adriano Ferrari

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.)

SCM Group SpA

Original Assignee

SCM Group 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.)

2009-04-15

Filing date

2010-04-14

Publication date

2012-03-14

2010-04-14 Application filed by SCM Group SpA filed Critical SCM Group SpA

2010-10-20 Publication of EP2241401A1 publication Critical patent/EP2241401A1/en

2012-03-14 Application granted granted Critical

2012-03-14 Publication of EP2241401B1 publication Critical patent/EP2241401B1/en

Status Not-in-force legal-status Critical Current

2030-04-14 Anticipated expiration legal-status Critical

Images

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
- B24B21/04—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces
- 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
- B24B21/008—Machines comprising two or more tools or having several working posts
- 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
- B24B41/047—Grinding heads for working on plane surfaces
- 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
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
- B24B7/28—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding wood

Definitions

the invention relates to a sanding machine for sanding pieces made of wood or similar materials and/or of metal or similar materials and/or of plastics or similar materials.
Sanding machines are known comprising a frame supporting a conveying belt arranged for conveying pieces to be sanded along an advancement direction.
These sanding machines further comprise one or more transverse sanding units and/or one or more longitudinal sanding units arranged in sequence along the advancement direction.
the transverse sanding units each comprise a pair of belts: a first inner supporting belt, or lamellar belt, and a second more external belt, or abrasive belt for sanding the pieces.
Such belts are wound in a loop around movement rollers and are moved transversely to the aforesaid advancement direction so as to sand the workpieces transversely to the latter.
the aforesaid longitudinal sanding units each comprise an abrasive belt wound in a loop around respective movement rollers and moved by the latter parallelly to the aforesaid advancement direction so as to sand the workpieces parallelly to the latter.
One drawback of known sanding machines is that the operations of replacing the aforesaid belts, in particular the belts of the transverse sanding units positioned in the first or last position with respect to the machine inlet or interposed between another two sanding units, are uneasy and laborious, this entailing long machine downtime and consequently reducing the productivity of the sanding machine.
US 2004/0087261 A1 discloses a machine according to the preamble of claim 1.
One object of the invention is to improve sanding machines.
a further object is to provide sanding machines that enable the abrasive belts to be replaced simply and rapidly.
Another further object is to obtain sanding machines that are not very bulky.
the invention provides a sanding machine as defined in the independent claim 1.
said slidable connecting means enables, during a replacement step, said sanding units to be extracted from the sanding machine so as to make said sanding means easily accessible for an operator.
a sanding machine 10 for sanding pieces which are not shown, made of wood or similar materials and/or of metal or similar materials and/or of plastics or similar materials.
the sanding machine 10 comprises a frame 11 supporting a conveyor belt 12 arranged for conveying the pieces to be sanded along an advancement direction A.
the sanding machine 10 further comprises a transverse sanding unit 13 and a pair of longitudinal sanding units 31, 32 arranged in sequence along the advancement direction A.
transverse sanding unit 13 is interposed between the pair of longitudinal sanding units 31, 32.
transverse sanding units and/or one or more longitudinal sanding units arranged in sequence, with any arrangement, along the advancement direction.
the transverse sanding unit 13 is of known type and, for this reason, is disclosed briefly with reference to Figures 1 and 4 .
the transverse sanding unit 13 comprises a further frame 14 rotatably supporting a plurality of rollers 15, 16, 17 and 18 positioned, at a retracted position R ( Figure 1 ) of the transverse sanding unit 13, above the conveyor belt 12, and having respective axes extending substantially parallelly to the advancement direction A.
the transverse sanding unit 13 comprises a first roller 15, a second roller 16, a third roller 17 and a fourth roller 18.
the first roller 15, the second roller 16 and the third roller 17 tension and move a supporting belt 19, or lamellar belt, which is not disclosed below as it is of known type, closed in a loop on the first roller 15, on the second roller 16 and on the third roller 17.
first roller 15, the second roller 16 and the fourth roller 18 tension and move an abrasive belt 20, closed as a loop on the first roller 15, on the second roller 16 and on the fourth roller 18, the abrasive belt 20 being arranged outside the supporting belt 19.
the transverse sanding unit 13 further comprises a pressing device 21, arranged for exerting suitable pressure on a portion of the abrasive belt 20 in the direction of the conveyor belt 12 so as to exert greater or lesser sanding pressure on the pieces to be machined.
the pressing device 21 is arranged transversely to the advancement direction A and is divided into a plurality of pad blocks that are not shown that are adjacent to one another.
the pad blocks are drivable independently one from the other so as to each press a portion of the abrasive belt 20 with a different pressing force.
a single pressing element, or pad can be provided.
the transverse sanding unit 13 further comprises a motor 22 for rotating one of the rollers 15, 16, 17, 18 so as to move the abrasive belt 20 and the supporting belt 19 transversely, in particular perpendicularly to the advancement direction A so as to sand the pieces transversely, in particular perpendicularly, to the latter.
these longitudinal sanding units 31, 32 each comprise a respective abrasive belt 23, 24 wound as a loop around respective movement rollers 25, 26 and moved by the movement rollers 25, 26 parallelly to the advancement direction A so as to sand the pieces parallelly to advancement direction A.
the sanding machine 10 further comprises slidable connecting means 27, shown with greater detail in Figure 2 , arranged for slidably connecting the transverse sanding unit 13 to the sanding machine 10.
the slidable connecting means 27 enables the transverse sanding unit 13 to be moved along a movement direction M that is substantially horizontal and perpendicular to the advancement direction A, between the retracted position R ( Figures 1 and 3 ) in which the transverse sanding unit 13, and with it the belts 19 and 20, is positioned inside the sanding machine 10 for sanding the aforesaid pieces, and an extracted position E ( Figures 4 and 5 ) in which the transverse sanding unit 13, and with it the belts 19 and 20, exits, at least partially, from the sanding machine 10 to enable the belts 19 and 20 to be replaced.
la movement direction M is substantially vertical and perpendicular to the advancement direction A.
the aforesaid slidable connecting means 27 comprises a first telescopic guide 28 and a second telescopic guide 29 positioned on opposite sides of the transverse sanding unit 13.
the first telescopic guide 28 and second telescopic guide 29 each comprise a respective first fixed guiding element 33, 34.
the first guiding elements 33 and 34 which are substantially parallel to one another, extend substantially parallelly to the movement direction M.
first guiding elements 33, 34 are fixed to opposite portions of a supporting frame 35 ( Figure 4 ) of the sanding machine 10.
the supporting frame 35 extends substantially parallelly to the movement direction M and has the shape of an upturned 'U'.
the first telescopic guide 28 and the second telescopic guide 29 each comprise a respective second guiding element 36, 37, that is movable with respect to the corresponding first guiding element 33, 34 along the movement direction M.
the second guiding elements 36, 37 which are substantially parallel to one another, extend substantially parallelly to the movement direction M and are operationally positioned below the respective first guiding elements 33, 34.
second guiding elements 36, 37 are fixed to opposite portions of the further frame 14 of the transverse sanding unit 13.
the first telescopic guide 28 and the second telescopic guide 29 each comprise a respective intermediate guiding element 38, 39, having, for example, an S-shaped section.
Each intermediate guiding element 38, 39 is interposed between the corresponding fixed guiding element 33, 34 and the second guiding element 36, 37 and is slidably connected to the corresponding first guiding element 33, 34 and to the second guiding element 36, 37.
the aforesaid transverse sanding unit 13 further comprises a handle 40 fixed to the further frame 14, to enable an operator to move the transverse sanding unit 13 between the retracted position R and the extracted position E.
actuating means for example comprising a pneumatic or electric or hydraulic actuator, to move the transverse sanding unit 13 between the retracted position R and the extracted position E.
further slidable connecting means is provided for slidably connecting the sanding machine 10 to the longitudinal sanding units 31, 32 for example to facilitate replacing the belts 23, 24, or to promote other maintenance operations.
the invention disclosed above enables the belts 19, 20 of the transverse sanding unit 13 to be replaced easily and quickly, in particular the belts 19, 20 of the transverse sanding units positioned in the first or last position with respect to an inlet of the sanding machine 10 or interposed between another two sanding units 31, 32.
the slidable connecting means 27 enables, during a replacement step, the transverse sanding unit 13 to be extracted from the sanding machine 10 so as to make the belts 19, 20 easily accessible for and easily replaceable by an operator.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Life Sciences & Earth Sciences (AREA)
Wood Science & Technology (AREA)
Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Crushing And Grinding (AREA)
Holo Graphy (AREA)
Shovels (AREA)

EP10159867A 2009-04-15 2010-04-14 Belt sanding machine Not-in-force EP2241401B1 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
ITMO2009A000090A IT1394079B1 (it)	2009-04-15	2009-04-15	Macchina levigatrice

Publications (2)

Publication Number	Publication Date
EP2241401A1 EP2241401A1 (en)	2010-10-20
EP2241401B1 true EP2241401B1 (en)	2012-03-14

Family

ID=41348983

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP10159867A Not-in-force EP2241401B1 (en)	2009-04-15	2010-04-14	Belt sanding machine

Country Status (3)

Country	Link
EP (1)	EP2241401B1 (it)
AT (1)	ATE549123T1 (it)
IT (1)	IT1394079B1 (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN104985497A (zh) *	2015-07-23	2015-10-21	福建省尤溪县红树林木业有限公司	一种结构改进的砂光机

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN107309748A (zh) *	2017-07-19	2017-11-03	广州宏曦能源科技有限公司	箱体打磨机
CN111390718B (zh) *	2020-05-09	2025-08-01	安徽马钢重型机械制造有限公司	一种万能轧机水平辊轴光整加工装置及其加工方法
IT202200016977A1 (it) *	2022-08-08	2024-02-08	Scm Group Spa	Macchina levigatrice perfezionata

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6769974B2 (en) *	2002-11-01	2004-08-03	Wang Tien Wang	Sand-belt finishing machine having a sand-belt replacement mechanism

2009
- 2009-04-15 IT ITMO2009A000090A patent/IT1394079B1/it active
2010
- 2010-04-14 AT AT10159867T patent/ATE549123T1/de active
- 2010-04-14 EP EP10159867A patent/EP2241401B1/en not_active Not-in-force

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN104985497A (zh) *	2015-07-23	2015-10-21	福建省尤溪县红树林木业有限公司	一种结构改进的砂光机
CN104985497B (zh) *	2015-07-23	2017-04-26	福建省尤溪县红树林木业有限公司	一种结构改进的砂光机

Also Published As

Publication number	Publication date
EP2241401A1 (en)	2010-10-20
ITMO20090090A1 (it)	2010-10-16
IT1394079B1 (it)	2012-05-25
ATE549123T1 (de)	2012-03-15

Publication	Publication Date	Title
EP2241401B1 (en)	2012-03-14	Belt sanding machine
KR101591448B1 (ko)	2016-02-03	자동 리벳팅장치
US9580193B2 (en)	2017-02-28	Cutting station with complete cutting tool
TW201603906A (zh)	2016-02-01	板金彎曲機
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JP6296715B2 (ja)	2018-03-20	板紙用紙に溝付けする装置
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CN112853723B (zh)	2022-04-05	一种可对刀片进行替换的纺织面料加工用裁布装置
JP2014019582A5 (it)	2016-09-01
EP4129570B1 (en)	2026-01-28	Sanding machine provided with a variabile hardness roller
KR102400943B1 (ko)	2022-05-20	블로잉 수단 유닛 및 핫 포일 스탬핑 및 다이-절삭 디바이스
EP2279972A1 (en)	2011-02-02	Vertical working center for flat glass sheets
ITBO20090641A1 (it)	2011-04-03	Macchina sezionatrice.
US4499794A (en)	1985-02-19	Machine for machining circular saw blades
CA2171799A1 (en)	1996-09-16	Method for cutting belts that incorporate reinforcing inserts, and a cutter for belts of such a kind
JP2009527367A (ja)	2009-07-30	形削り盤
CN106391751A (zh)	2017-02-15	一种可横向偏移的皮带张力装置
DK2794146T3 (en)	2016-08-01	A device for feeding metal products to a processing machine and corresponding method
CN106862322B (zh)	2018-09-21	连续折弯的大型板材双联动折弯机
CN113385576B (zh)	2021-10-15	一种机械配件加工用切片冲弧机
EP4530017A1 (en)	2025-04-02	Machining unit for a sanding machine with a variable hardness roller
KR100685042B1 (ko)	2007-02-20	형강 압연기의 멀티 가이드장치
CN217492464U (zh)	2022-09-27	一种冲剪机设备用送料机构
EP4185717B1 (en)	2024-07-24	Semi-automatic tool for changing conveyor belts in a machine for treating sheet products, and method of use
US3033266A (en)	1962-05-08	Stretch forming machine

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