EP3838479A1 - Entgratungsmaschine für die nachbearbeitung von elementen aus holz, metall, kunststoff oder dergleichen - Google Patents

Entgratungsmaschine für die nachbearbeitung von elementen aus holz, metall, kunststoff oder dergleichen Download PDF

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Publication number
EP3838479A1
EP3838479A1 EP20215591.7A EP20215591A EP3838479A1 EP 3838479 A1 EP3838479 A1 EP 3838479A1 EP 20215591 A EP20215591 A EP 20215591A EP 3838479 A1 EP3838479 A1 EP 3838479A1
Authority
EP
European Patent Office
Prior art keywords
tool
toothed
deburring machine
holder
machine according
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
EP20215591.7A
Other languages
English (en)
French (fr)
Other versions
EP3838479B1 (de
Inventor
Fabio Balducci
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.)
Biesse SpA
Original Assignee
Viet Italia 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 Viet Italia Srl filed Critical Viet Italia Srl
Publication of EP3838479A1 publication Critical patent/EP3838479A1/de
Application granted granted Critical
Publication of EP3838479B1 publication Critical patent/EP3838479B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/06—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor involving conveyor belts, a sequence of travelling work-tables or the like
    • 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
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/002—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor for travelling workpieces

Definitions

  • the invention relates to a deburring machine for the finishing of elements made of wood, metal, plastic material or the like.
  • the invention can be applied in a particularly advantageous manner to the removal of burrs from elements obtained by cutting sheet metal.
  • a deburring machine which comprises a conveyor belt, which has an upper transport branch defining a substantially horizontal support surface for at least one element and is designed to feed the element in a first direction; and a deburring assembly, which is mounted above the support surface crosswise to the first direction.
  • the deburring assembly generally comprises a plurality of tool-holder spindles, which are mounted so as to rotate around respective rotation axes parallel to one another and substantially perpendicular to the support surface and are designed to each receive and hold a respective finishing tool.
  • the rotation axes of the tool-holder spindles are aligned with one another in a second direction, which is transverse to the first direction and parallel to the support surface.
  • the tool-holder spindles are caused to rotate around the relative rotation axes by an operating device comprising, for each tool-holder spindle, a respective toothed pulley, which is angularly integral to the tool-holder spindle.
  • the operating device further comprises a drive belt, which is delimited by two toothed faces opposite one another and has a drive branch, which is wound in a zigzag shape around the toothed pulleys of the tool-holder spindles.
  • deburring machines of the type described above suffer from a further drawback lying in the fact that the opposite rotation directions of two adjacent tool-holder spindles compromise the uniformity of the deburring operations carried out on each element, in particular in the area of a front end and of a rear end of the element.
  • the object of the invention is to provide a deburring machine for the finishing of elements made of wood, metal, plastic material or the like, which does not suffer from the aforementioned drawbacks and can be manufactured in a simple and economic fashion.
  • number 1 indicates, as a whole, a deburring machine for the finishing of elements 2 made of wood, metal, plastic material or the like.
  • the deburring machine 1 comprises a feeding device 3 to feed the elements 2 one after the other in a horizontal direction 4.
  • the device 3 comprises a conveyor belt 5, which has an upper transport branch defining a horizontal support surface P for the elements 2 and is wound in a ring shape around a pair of motor-driven pulleys 6, which are mounted so as to rotate around respective longitudinal axes 7, which are parallel to one another and to a horizontal direction 8, which is transverse to the direction 4.
  • the deburring machine 1 is further provided with a deburring assembly 9 comprising a gantry frame 10, which is mounted above the conveyor 5 and extends in the direction 8.
  • the frame 10 supports a vertical slide 11, which is coupled to the frame 10 in a known manner so as to make, relative to the frame 10, straight movements in a vertical direction 12, which is orthogonal to the directions 4 and 8.
  • the assembly 9 further comprises a substantially flat horizontal plate 13, which extends above the plane P in the direction 8, is coupled to the slide 11 in a sliding manner and is moved, relative to the slide 11 and due to the thrust of a known operating device 14, with an oscillatory motion in the direction 8.
  • the plate 13 supports a plurality of tool-holder spindles 15, which extend through the plate 13 parallel to the direction 12 and are aligned with one another in the direction 8.
  • the spindles 15 are mounted so as to rotate, relative to the plate 13 and in ways that are better described below, around respective rotation axes 16 parallel to one another and to the direction 12 and are designed to each receive and hold a respective known finishing tool, which is not shown herein.
  • Each spindle 15 carries, by means of a spline, a toothed pulley 17 mounted coaxially to the relative axis 16 and is engaged in a rotary manner through an idler pulley 18, which is delimited by a smooth side face coaxial to the relative axis 16 and is mounted so as to rotate, relative to the spindle 15, around the relative axis 16.
  • the toothed pulley 17 of each spindle 15 faces in a radial manner, namely crosswise to the relative axis 16 and in the direction 8, the idler pulley 18 of each adjacent spindle 15 and the idler pulley 18 of each spindle 15 faces in a radial manner, namely crosswise to the relative axis 16 and in the direction 8, the toothed pulley 17 of each adjacent spindle 15.
  • the toothed pulleys 17 and the idler pulleys 18 define part of a belt transmission system 19, which is designed to move the spindles 15 around the relative axes 16.
  • the system 19 further comprises two toothed pulleys 20 extending in two containing planes, which are parallel to one another and perpendicular to the direction 12.
  • Each belt 20 has a toothed face and is wound in a zigzag shape around a relative group of toothed pulleys 17 and idler pulleys 18.
  • each belt 20 is alternatively wound in a zigzag shape around a toothed pulley 17 and an idler pulley 18 so as to allow a relatively small distance between adjacent axes 16.
  • each belt 20 is wound around a pair of further toothed pulleys 21, 22, which are mounted on the outside of the plate 13 and are coupled to the slide 11 in a rotary manner so as to rotate, relative to the slide 11, around respective rotation axes 23, 24, which are parallel to one another and to the axes 16.
  • the two toothed pulleys 21 are mounted on a first transmission shaft 25, which is coaxial to the axis 23, and the two toothed pulleys 22 are mounted on a second transmission shaft 26, which is coaxial to the axis 24.
  • the toothed pulleys 21, 22 and, hence, the belts 20 are caused to rotate by an electric motor 27, which is mounted on the slide 11 parallel to the direction 12 and has an output shaft 28 connected to the shaft 25 by means of a transmission belt 29, which is wound in a ring shape around a pair of toothed pulleys 30 splined on the shafts 25 and 28.
  • each belt 20 is further wound around at least one idler roller 31, which is fitted, in a rotary manner, on a support pin 32 mounted on the plate 13 parallel to the direction 12.
  • each roller 31 of each belt 20 is mounted coaxially to a corresponding roller 31 of the other belt 20 and is arranged between one of the shafts 25, 26 and the adjacent spindle 15.
  • each belt 20 comprises, for each idler roller 31, a curved segment 20a extending around the roller 31 and two straight segments 20b, which are parallel to one another and are connected to the free ends of the curved segment 20a.
  • the deburring machine 1 has some advantages which mainly arise from the fact that the arrangement and the configuration of the belts 20 allow each spindle 15 to be moved around the relative axis 16 with a rotation direction that is the same as the rotation direction of all the other spindles 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
EP20215591.7A 2019-12-19 2020-12-18 Entgratungsmaschine für die nachbearbeitung von elementen aus holz, metall, kunststoff oder dergleichen Active EP3838479B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102019000024631A IT201900024631A1 (it) 2019-12-19 2019-12-19 Macchina sbavatrice per la finitura di elementi di legno, metallo, materiale plastico o simili

Publications (2)

Publication Number Publication Date
EP3838479A1 true EP3838479A1 (de) 2021-06-23
EP3838479B1 EP3838479B1 (de) 2022-10-12

Family

ID=70228471

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20215591.7A Active EP3838479B1 (de) 2019-12-19 2020-12-18 Entgratungsmaschine für die nachbearbeitung von elementen aus holz, metall, kunststoff oder dergleichen

Country Status (2)

Country Link
EP (1) EP3838479B1 (de)
IT (1) IT201900024631A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114851067A (zh) * 2022-07-07 2022-08-05 沭阳县沐之森木业有限公司 基于木材制品加工用抛光装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2635653A (en) * 1950-07-27 1953-04-21 Charles H Hennell Apparatus for embossing graining of wood
JPS63251156A (ja) * 1987-09-28 1988-10-18 Daiwa Shoji:Kk 板面加工方法とその加工装置
US20020068515A1 (en) * 2000-07-24 2002-06-06 Antonius Butfering Method and apparatus for machining workpiece surfaces
EP1772232A1 (de) * 2005-10-06 2007-04-11 SCM GROUP S.p.A. Schleifeinheit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2635653A (en) * 1950-07-27 1953-04-21 Charles H Hennell Apparatus for embossing graining of wood
JPS63251156A (ja) * 1987-09-28 1988-10-18 Daiwa Shoji:Kk 板面加工方法とその加工装置
US20020068515A1 (en) * 2000-07-24 2002-06-06 Antonius Butfering Method and apparatus for machining workpiece surfaces
EP1772232A1 (de) * 2005-10-06 2007-04-11 SCM GROUP S.p.A. Schleifeinheit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114851067A (zh) * 2022-07-07 2022-08-05 沭阳县沐之森木业有限公司 基于木材制品加工用抛光装置

Also Published As

Publication number Publication date
EP3838479B1 (de) 2022-10-12
IT201900024631A1 (it) 2021-06-19

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