WO2007078046A1 - Head of grinder for stone - Google Patents

Head of grinder for stone Download PDF

Info

Publication number
WO2007078046A1
WO2007078046A1 PCT/KR2006/004436 KR2006004436W WO2007078046A1 WO 2007078046 A1 WO2007078046 A1 WO 2007078046A1 KR 2006004436 W KR2006004436 W KR 2006004436W WO 2007078046 A1 WO2007078046 A1 WO 2007078046A1
Authority
WO
WIPO (PCT)
Prior art keywords
grinding
gear box
stone
shaft
gear
Prior art date
Application number
PCT/KR2006/004436
Other languages
French (fr)
Inventor
Jong Ku Yeo
Original Assignee
Jong Ku Yeo
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
Priority to KR1020060000902A priority Critical patent/KR100744074B1/en
Priority to KR10-2006-0000902 priority
Application filed by Jong Ku Yeo filed Critical Jong Ku Yeo
Publication of WO2007078046A1 publication Critical patent/WO2007078046A1/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00Radiation therapy
    • A61N5/06Radiation therapy using light
    • A61N5/0613Apparatus adapted for a specific treatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/20Machines 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
    • B24B7/22Machines 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 inorganic material, e.g. stone, ceramics, porcelain
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00Drives or gearings; Equipment therefor
    • B24B47/10Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/12Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00Radiation therapy
    • A61N5/06Radiation therapy using light
    • A61N2005/0635Radiation therapy using light characterised by the body area to be irradiated
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00Radiation therapy
    • A61N5/06Radiation therapy using light
    • A61N2005/065Light sources therefor
    • A61N2005/0651Diodes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00Radiation therapy
    • A61N5/06Radiation therapy using light
    • A61N2005/0658Radiation therapy using light characterised by the wavelength of light used
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00Radiation therapy
    • A61N5/06Radiation therapy using light
    • A61N2005/067Radiation therapy using light using laser light

Abstract

A grinding head for a stone grinding machine is disclosed. The grinding head includes a motor installed to a movable frame; a revolving rotary shaft connected to the motor; a gear box fixed to the revolving rotary shaft so that the gear box is rotated together with the revolving rotary shaft, the gear box being formed in a cylindrical shape with an opened upper portion, and having an internal gear formed on an inner periphery; rotating gear shafts installed in the gear box and meshed with the internal gear of the gear box to simultaneously rotate and revolve, lower ends of the rotating gear shafts penetrating through holes formed on a bottom surface of the gear box; a shaft fixing plate installed in the gear box to support the rotating gear shaft so that an upper end of the rotating gear shaft is freely rotated, the shaft fixing plate being fixed to the revolving rotary shaft to rotate together with the revolving rotary shaft; an upper cover covering the opened upper portion of the gear box and fixed to the frame; a rotary disc fixed to a lower end of the rotating gear shaft so that the rotary disc is rotated and revolved; and a grinding plate fixed to the rotary disc, and contacting against a surface of a stone to wear the stone while the grinding plate is rotated together with the rotary disc.

Description

Description HEAD OF GRINDER FOR STONE
Technical Field
[1] The present invention relates to a head of grinder for stone.
Background Art
[2] The present invention relates to a head of grinder for stone, and more particularly, to a head of grinder for stone which can remarkably increase productivity thereof by using grinding plates of different materials which can be rotated and revolved and can prolong its lifespan. Generally, stone cut from unworked stone is generally polished or grinded to have a smooth surface, so that the stone is used as building materials. In order to grind the surface of the stone, various kinds of grinding heads are utilized in the stone grinding machine. A a head of grinder for stone which is most widely used in the art includes a motor fixed to a movable frame, and a plurality of grinding stones rotatably fixed to the frame. The stone is contacted with the grinding stones which are rotated, while the frame is moved. In particular, the grinding stones are made of a material similar to the stone to be grinded, and can be rotated in only one direction. The grinding stones are rotated, with the tones being contacted with the stone to be grinded so as to have about 90 gloss degree. The conventional a head of grinder for stone has the following problems. First, since the stone is grinded only by rotating the grinding stone which is made of the material similar to the stone, the machining speed of the stone is very slow. In addition, since there is a limit to increase a diameter of the grinding stone, many grinding stones and motors should be installed so as to grind a wide stone. For instance, if the stone is grinded during 8 hours, 120 square meters of the stone is grinded at the most in case of 90 gloss degree. Second, since the conventional grinding head of the stone grinding machine is made of a material similar to the stone to be grinded, the wear of the grinding stone is sever, the operation of the stone grinding machine is stopped 5 or 6 times so as to replace the worn grinding stones with new grinding stones when the stone is grinded during 8 hours. The replacing costs of the grinding stones are increased, and the grinding time is delayed due to interruption of the operation. Third, the grinding stones are likely broken by the shock when the stone grinding machine malfunctions. In case at least 6 grinding stones are installed, the grinding stones are broken about 30 times a day, so that the stone grinding machine is stopped and thus the operation is delayed. Finally, calculating a production cost per one square meter in case in which four grinding stones are installed on the grinding head and the grinding operation is carried out for 8 hours, 160 grinding stones a day are needed in total. If one grinding stone is 1000 won, the costs of the grinding stones are 160000 won. Since the productivity a day is about 120 square meters, the production cost per one square meter is about 1333 won. Consequently, the production cost is very expensive. Disclosure of Invention
Technical Problem
[3] The present invention has been made in view of the foregoing problems, and it is an object of the present invention to provide a head of grinder for stone which can quickly grind a stone of a wide surface by using a grinding plate which is simultaneously rotated and revolved, without increasing a diameter of the grinding plate or installing many motors. Another object of the present invention is to provide a head of grinder for stone including a grinding plate made of a metal and a diamond which can quickly grind stone and shorten a replacing cost and time of the grinding plate due to high wear resistance of the grinding plate, thereby remarkably reducing a production cost of the stone. Brief Description of the Drawings
[4] The foregoing and other objects, features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which:
[5] FIG. 1 is a perspective view illustrating a plurality of grinding heads installed on a frame according to an embodiment of the present invention
[6] FIG. 2 is a partially cross-sectional view illustrating the grinding head for the stone grinding machine in FIG. 1 ;
[7] FIG. 3 is a plan view illustrating the meshing engagement of the gear box and the rotating gear shaft in FIG. 2; and
[8] FIG. 4 is an exploded perspective view illustrating the grinding head in FIG. 1.
[9]
Best Mode for Carrying Out the Invention
[10] In order to achieve the above objects, in one aspect of the present invention, there is provided a head of grinder for stone comprising: a motor installed to a movable frame; a revolving rotary shaft connected to the motor; a gear box fixed to the revolving rotary shaft so that the gear box is rotated together with the revolving rotary shaft, the gear box being formed in a cylindrical shape with an opened upper portion, and having an internal gear formed on an inner periphery; rotating gear shafts installed in the gear box and meshed with the internal gear of the gear box to simultaneously rotate and revolve, lower ends of the rotating gear shafts penetrating through holes formed on a bottom surface of the gear box; a shaft fixing plate installed in the gear box to support the rotating gear shaft so that an upper end of the rotating gear shaft is freely rotated, the shaft fixing plate being fixed to the revolving rotary shaft to rotate together with the revolving rotary shaft; an upper cover covering the opened upper portion of the gear box and fixed to the frame; a rotary disc fixed to a lower end of the rotating gear shaft so that the rotary disc is rotated and revolved; and a grinding plate fixed to the rotary disc, and contacting against a surface of a stone to wear the stone while the grinding plate is rotated together with the rotary disc.
[11] Reference will now be made in detail to the preferred embodiment of the present invention.
[12] Referring to FIGs. 1, 2, and 4, a head of grinder for stone according to an embodiment of the present invention grinds a surface of stone 1 by using a grinding plate 10 which is simultaneously rotated and revolved. The grinding head includes a motor 11, a revolving rotary shaft 12, a gear box 13, a rotating gear shaft 14, a shaft fixing plate 15, an upper cover 16, a rotary disc 17, and a polishing plate 10.
[13] More specifically, the motor 11 is installed to a movable frame 2, and the grinding plate 10 is simultaneously rotated and revolved, so that the rotation power is transferred to the grinding plate 10. The revolving rotary shaft 12 is connected to the motor 11. More specifically, an upper end of the revolving rotary shaft 12 is connected to the motor 11, and a lower end is provided with a spline 18.
[14] As shown in FIG. 2, the revolving rotary shaft 12 is provided with a lubricant supplying hole 12a, so that a lubricant is supplied to the surface of the stone 1 through the lubricant supplying hole 12a. The gear box 13 is fixed to the revolving rotary shaft 12, and thus is rotated together with the revolving rotary shaft 12, as shown in FIGs. 3 and 4. The gear box 13 is provided with a spline groove 19 formed at a center portion which is engaged with the spline 18. The gear box 13 is generally formed in a cylindrical shape with an opened upper portion. The gear box 13 includes an internal gear 13a formed on an inner periphery and meshed with the rotating gear shaft 14. In particular, as shown in FIG. 3, the rotating gear shaft 14 is installed in the gear box 13, and is meshed with the internal gear 13a of the gear box 13, so that the grinding head can be simultaneously rotated and revolved. The lower end of the rotating gear shaft 14 penetrates through the through hole 20 formed on a bottom surface of the gear box 13. Preferably, three rotating gear shafts 14 are disposed at equal angles around the revolving rotary shaft 12 in the gear box 13, as shown in FIGs. 3 and 4. Although not shown, two or four rotating gear shafts 14 may be disposed at equal angles around the evolving rotary shaft 12 in the gear box 13. The shaft fixing plate 15 is installed in the gear box 13 to support the rotating gear shaft 14 so that the upper end of the rotating gear shaft 14 is freely rotated. The shaft fixing plate 15 is fixed to the revolving rotary shaft 12, and thus is rotated together with the revolving rotary shaft 12. The gear box 13 and the shaft fixing plate 15 are provided with spline grooves 19, respectively, which are engaged with the spline 18.
[15] Meanwhile, as shown in FIGs. 2 and 4, the upper cover 16 covers the opened upper portion of the gear box 13, and is fixed to the frame 2. The upper cover 16 may be spaced apart from the gear box 13 at a certain distance so as to prevent interruption of the rotation of the gear box 13. Also, as shown in FIGs. 2 and 4, the rotary disc 17 is fixed to the lower end of the rotating gear shaft 14 to support the grinding plate 10, so that the rotary disc is simultaneously rotated and revolved. As shown in FIGs. 2 and 4, the grinding plate 10 is detachably fixed to the rotary disc 17, and contacts against the surface of the stone to wear the stone 1 while it is simultaneously rotated and revolved together with the rotary disc 17. Therefore, with the grinding head of the stone grinding machine according to the present invention, the grinding plate 10 is simultaneously rotated and revolved in a large radius of rotation. For example, 3000 square meters of the stone can be produced by using the small number of grinding plates 10 and motors 11 for 8 hours in case of 90 gloss degree, without enlarging the diameter of the grinding plate 10. In particular, the grinding plate 10 is made of metal and diamond, instead of the conventional stone material. The grinding plate 10 of the present invention has durability, wear resistance, ductility, and hardness superior than those of the conventional grinding stone, thereby improving a machining performance and shortening the machining time. Also, since the grinding plate is made of the metal and the diamond, the hardness of the grinding plate is particularly reinforced. Consequently, since a wearing amount of the grinding plate is too small, it can significantly reduce the replacing times of the grinding plate 10. Also, since the rigidity of the grinding plate 10 made of metal is very high, the grinding plate is hardly ruptured when it is operated by mistake. Therefore, calculating a production cost per one square meter in case in which three grinding plates 10 are installed on the grinding head and the grinding operation is carried out for 8 hours, 45000 won per a grinding plate 10 is needed, which is seemed to be expensive in comparison with the conventional grinding stone. However, since it is not necessary to replace the grinding plate, if six heads each having three grinding plates are utilized, the total cost of the grinding plates is 810000 won. Since the productivity a day is about 3000 square meters, the production cost per one square meter is about 270 won. Consequently, it can remarkably reduce the production cost in comparison with the conventional grinding stone of which the production cost is about 1333 won.

Claims

Claims
[1] A grinding head for a stone grinding machine comprising: a motor installed to a movable frame; a revolving rotary shaft connected to the motor; a gear box fixed to the revolving rotary shaft so that the gear box is rotated together with the revolving rotary shaft, the gear box being formed in a cylindrical shape with an opened upper portion, and having an internal gear formed on an inner periphery; rotating gear shafts installed in the gear box and meshed with the internal gear of the gear box to simultaneously rotate and revolve, lower ends of the rotating gear shafts penetrating through holes formed on a bottom surface of the gear box; a shaft fixing plate installed in the gear box to support the rotating gear shaft so that an upper end of the rotating gear shaft is freely rotated, the shaft fixing plate being fixed to the revolving rotary shaft to rotate together with the revolving rotary shaft; an upper cover covering the opened upper portion of the gear box and fixed to the frame; a rotary disc fixed to a lower end of the rotating gear shaft so that the rotary disc is rotated and revolved; and a grinding plate fixed to the rotary disc, and contacting against a surface of a stone to wear the stone while the grinding plate is rotated together with the rotary disc. [2] The grinding head as claimed in claim 1, wherein the revolving rotary shaft is provided with a spline, and the gear box and the shaft fixing plate are provided with spline grooves which are engaged with the spline. [3] The grinding head as claimed in claim 1, wherein three rotating gear shafts are disposed at equal angles around the revolving rotary shaft in the gear box. [4] The grinding head as claimed in claim 1, wherein the grinding plate is made of metal and diamond.
PCT/KR2006/004436 2006-01-04 2006-10-28 Head of grinder for stone WO2007078046A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020060000902A KR100744074B1 (en) 2006-01-04 2006-01-04 Head of grinder for stone
KR10-2006-0000902 2006-01-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008549407A JP2009522124A (en) 2006-01-04 2006-10-28 Polishing head of stone polishing machine

Publications (1)

Publication Number Publication Date
WO2007078046A1 true WO2007078046A1 (en) 2007-07-12

Family

ID=37118396

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2006/004436 WO2007078046A1 (en) 2006-01-04 2006-10-28 Head of grinder for stone

Country Status (4)

Country Link
JP (1) JP2009522124A (en)
KR (1) KR100744074B1 (en)
CN (1) CN100546765C (en)
WO (1) WO2007078046A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2377646A1 (en) * 2010-04-19 2011-10-19 SCM Group S.p.A. Device for finishing edges and/or outer surfaces of workpieces
ITVI20110025A1 (en) * 2011-02-11 2012-08-12 Alba Paolo Wheel head to be mounted on sanding machines for stone materials, such as marble, granite and the like
CN104440486A (en) * 2014-10-30 2015-03-25 芜湖杰诺科技有限公司 Flexible pressing type multi-grinding-head universal grinding device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100783066B1 (en) * 2006-03-14 2007-12-07 전인택 Grinder for concrete
KR100757042B1 (en) * 2007-04-09 2007-09-07 주식회사 진영석재 Tool for dabbed finish apparatus
KR200477199Y1 (en) * 2014-11-11 2015-05-15 애드스테인리스(주) Apparatus for scrubbing plate-shape work in capable of translation combined revolution and rotation
CN108788945A (en) * 2018-07-03 2018-11-13 嘉兴学院 Sapphire crystal precise grinding device
KR102192222B1 (en) 2020-05-28 2020-12-17 (주)천지석재무역 Polishing pad for wet processing of lateral face of stone and process for preparing the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5596261A (en) * 1979-01-12 1980-07-22 Hitachi Ltd Grinder
JPH0899195A (en) * 1994-09-29 1996-04-16 Amada Metrecs Co Ltd Method for finishing welding bead and device thereof
KR19990039938U (en) * 1998-04-22 1999-11-15 이상기 Multi-Axis Grinding Heads for Stone Polishers
KR200379002Y1 (en) * 2005-01-04 2005-03-16 (주)우성하이텍 Reduction gear of an agricultural breaking switch

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4169691A (en) * 1977-05-05 1979-10-02 Illinois Tool Works Inc. Machine for tracing the profile of an orbiting star gear
JP3178852B2 (en) * 1991-04-02 2001-06-25 株式会社エバテック Polishing equipment
JPH0639734A (en) * 1992-07-27 1994-02-15 Fuji Daiyamondo Kogyo Kk Grinding wheel for polishing stone material surface
JP3192963B2 (en) * 1996-03-21 2001-07-30 日立造船株式会社 Polishing equipment
KR19980062438U (en) * 1997-04-02 1998-11-16 조동식 Stone Polishing Plate
IT1292718B1 (en) * 1997-04-24 1999-02-11 R P Srl Sanding machine
JP2000052245A (en) * 1998-08-04 2000-02-22 Toshiba Mach Co Ltd Holder for grinding stone

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5596261A (en) * 1979-01-12 1980-07-22 Hitachi Ltd Grinder
JPH0899195A (en) * 1994-09-29 1996-04-16 Amada Metrecs Co Ltd Method for finishing welding bead and device thereof
KR19990039938U (en) * 1998-04-22 1999-11-15 이상기 Multi-Axis Grinding Heads for Stone Polishers
KR200379002Y1 (en) * 2005-01-04 2005-03-16 (주)우성하이텍 Reduction gear of an agricultural breaking switch

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2377646A1 (en) * 2010-04-19 2011-10-19 SCM Group S.p.A. Device for finishing edges and/or outer surfaces of workpieces
ITMO20100117A1 (en) * 2010-04-19 2011-10-20 Scm Group Spa Device for finishing edges and / or external surfaces of workpieces
ITVI20110025A1 (en) * 2011-02-11 2012-08-12 Alba Paolo Wheel head to be mounted on sanding machines for stone materials, such as marble, granite and the like
CN104440486A (en) * 2014-10-30 2015-03-25 芜湖杰诺科技有限公司 Flexible pressing type multi-grinding-head universal grinding device

Also Published As

Publication number Publication date
CN101028694A (en) 2007-09-05
KR20060006859A (en) 2006-01-19
KR100744074B1 (en) 2007-08-01
JP2009522124A (en) 2009-06-11
CN100546765C (en) 2009-10-07

Similar Documents

Publication Publication Date Title
JP5647671B2 (en) Double-sided cutting insert for drilling tools
KR100492854B1 (en) Grinding wheel
EP3632619B9 (en) Polishing or grinding pad assembly
US5967882A (en) Lapping apparatus and process with two opposed lapping platens
US7434289B2 (en) Polisher brush having wire-shaped grinding elements
US6048254A (en) Lapping apparatus and process with annular abrasive area
US6419564B2 (en) Grinding device and method
US7273005B2 (en) Coffee grinder assembly for a coffee machine
RU2378054C2 (en) Design of mineral breaker teeth
US7029380B2 (en) Double-side polishing method and apparatus
RU2457769C2 (en) Grinding unit for coffee mill and coffee machine with such mill
US4993194A (en) Grinding disks for profiling cylindrical worms
CN103370168B (en) For manufacturing the method and grinder of rotor
US20040043713A1 (en) Polishing machine
CN100537139C (en) Optical surface-finishing tool
US20010041513A1 (en) Method for chamfering a wafer
CN103717353B (en) Many milling tools
KR101131021B1 (en) Coffee grinder assembly for a coffee machine
EP2125289A1 (en) Grinding disk for an eccentric grinding machine
EP2176029A1 (en) Single-use edging wheel for finishing glass
CN201632923U (en) Rotating spindle type finishing machine
JP2012100727A (en) Electric shaver and manufacturing method of outer cutter and inner cutter of the same
EP2108480B1 (en) Grinding machine and grinding method
JP3205051U (en) Polishing unit, deburring device, polishing device, deburring robot, polishing robot
US20050282476A1 (en) Off-line tool for breaking in multiple pad conditioning disks used in a chemical mechanical polishing system

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2008549407

Country of ref document: JP

ENP Entry into the national phase in:

Ref document number: 2008549407

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase in:

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC

122 Ep: pct application non-entry in european phase

Ref document number: 06812276

Country of ref document: EP

Kind code of ref document: A1