CN107263310A - A kind of drum-type grinding head device - Google Patents

A kind of drum-type grinding head device Download PDF

Info

Publication number
CN107263310A
CN107263310A CN201710664585.0A CN201710664585A CN107263310A CN 107263310 A CN107263310 A CN 107263310A CN 201710664585 A CN201710664585 A CN 201710664585A CN 107263310 A CN107263310 A CN 107263310A
Authority
CN
China
Prior art keywords
fixed seat
drum
head device
grinding head
pedestal
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.)
Pending
Application number
CN201710664585.0A
Other languages
Chinese (zh)
Inventor
刘付剑琪
刘小辉
刘付涛
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.)
Guangdong Biao Hua Science And Technology Ltd
Original Assignee
Guangdong Biao Hua Science And Technology Ltd
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 Guangdong Biao Hua Science And Technology Ltd filed Critical Guangdong Biao Hua Science And Technology Ltd
Priority to CN201710664585.0A priority Critical patent/CN107263310A/en
Publication of CN107263310A publication Critical patent/CN107263310A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B24B41/00Component parts such as frames, beds, carriages, headstocks
    • B24B41/002Grinding heads
    • 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
    • B24B41/00Component parts such as frames, beds, carriages, headstocks
    • B24B41/02Frames; Beds; Carriages
    • 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
    • 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
    • B24B47/20Drives or gearings; Equipment therefor relating to feed movement
    • B24B47/203Drives or gearings; Equipment therefor relating to feed movement driven by hand
    • 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
    • B24B9/00Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

A kind of drum-type grinding head device, belongs to grinding machine technical field, more particularly to a kind of grinding machine grinding head device, including fixed seat, pedestal, left rotary shaft, left-hand rotation shaft stool, emery wheel, right spindle, right-hand rotation shaft stool, base and adjustment handwheel.Described base is the support of whole drum-type bistrique;Centre position of the described adjustment handwheel immediately ahead of base, can adjust the front and back position of pedestal;Described pedestal is arranged on base;Described fixed seat is arranged on pedestal.The rotating manner of grinding head device is:Adjust the screw on the arcuate socket of fixed seat bottom left and right ends, it becomes possible to make fixed seat is curved centered on the 4th screwed hole on the right-hand member of fixed seat bottom to rotate.A kind of drum-type grinding head device of the present invention can save substantial amounts of space, greatly reduce energy consumption, improve the qualification rate of product, and also very simple the step of can more easily realize the angle of regulation emery wheel, dismounting and change emery wheel, and operation difficulty is low.

Description

A kind of drum-type grinding head device
Technical field
A kind of drum-type grinding head device, belongs to grinding machine technical field, more particularly to a kind of grinding machine is filled with bistrique Put.
Background technology
Because the bistrique position of traditional grinding head device is inconvenient to adjust, earthenware brick is entered using traditional ceramic grinding machine When row corner is polished, the depth of cut of a bistrique is less, needs multiple grinding head devices to be polished during one block of ceramic tile of mill, takes up an area face Product is big, while high energy consumption, efficiency is low, product qualification rate is relatively low.
The content of the invention
The purpose of the present invention is the above-mentioned deficiency for overcoming traditional grinding head device, invents a kind of efficient drum-type bistrique dress Put.
A kind of drum-type grinding head device, including fixed seat, pedestal, left rotary shaft, left-hand rotation shaft stool, emery wheel, right spindle, right-hand rotation Shaft stool, base and adjustment handwheel.Described base is the support of whole drum-type bistrique;Described adjustment handwheel in base just The centre position in front, can adjust the front and back position of pedestal;Described pedestal is arranged on base;Described fixed seat is installed On pedestal, respectively there is a circular hole at the middle part of the left and right sides of fixed seat, and circular also has 4 the first screwed holes, in symmetrical Distribution;The left end of fixed seat bottom has 3 arcuate sockets, and this curved distribution of 3 arcuate sockets, in the side of fixed seat bottom left end There is second screwed hole in face, and the second screwed hole is connected with the 3rd screwed hole on pedestal with screw, can by adjusting screw To adjust the angle of fixed seat;The two ends of the right-hand member of fixed seat, which respectively have between an arcuate socket, 2 arcuate sockets, the 4th spiral shell Pit;The arcuate socket at left and right end can be with transposition.
There is a circular hole centre of described left-hand rotation shaft stool, and circular hole size is in the same size with circular hole in fixed seat, turns left Four angles of shaft stool are provided with 4 the first screw thread hole sites on the left of through hole, with fixed seat and in the same size, the work that through hole is played With being the left side that left-hand rotation shaft stool is fixed on fixed seat.The structure of described right-hand rotation shaft stool is 2 more than left-hand rotation shaft stool 5th screwed hole, the 5th screwed hole is fixed on fixed seat in the left and right sides being located in the middle part of right-hand rotation shaft stool, right-hand rotation shaft stool Right side.
There is first keyway left end side surface of described left rotary shaft, and the right end side of left rotary shaft has the second keyway, axle Upper to also have 2 the 6th screwed holes, the left end of left rotary shaft connects the transmission device of motor, the right-hand member connection emery wheel of left rotary shaft.It is described The left end surface of right spindle have a key-groove, right end face has 2 the 7th screwed holes, and screwed hole is symmetric, right The left end connection emery wheel of rotating shaft.Respectively there is a keyway at the two ends of central shaft inside described emery wheel, and spline is used on keyway It is connected with left rotary shaft, right spindle.
It is preferred that, there is a depth of cut scale on the right side of described base, effect is the distance of display base movement.
It is preferred that, there is a depth of cut display screen on the right side of described fixed seat, effect is the distance of display base movement.
It is preferred that, there is a stock removal scale on the left of described pedestal, effect is to show the angle that fixed seat is rotated.
It is preferred that, there is a stock removal display screen on the right side of described fixed seat, effect is to show the angle that fixed seat is rotated.
The rotating manner of described drum-type grinding head device is:Drum-type grinding head device is assembled by above-mentioned method, Each screwed hole, arcuate socket are loaded onto after corresponding screw, the screw on the arcuate socket of the fixed seat bottom left and right sides are adjusted, with regard to energy Enough make fixed seat is curved centered on the 4th screwed hole on the right-hand member of fixed seat bottom to rotate, so that emery wheel also can Arcuate rotation is presented, so as to adjust stock removal.Adjustment handwheel is rotated, the front and back position of pedestal can be adjusted, roller just can be adjusted The depth of cut of formula bistrique.
Described drum-type grinding head device dismantles mode:Four screws on right-hand rotation shaft stool are screwed down, turned right Twisted inward using screw on 2 the 5th screwed holes on shaft stool, such right-hand rotation shaft stool can just be removed outward, due to the right side 7th screwed hole of rotating shaft right-hand member has screw to block right-hand rotation shaft stool, so that right spindle can be past together with right-hand rotation shaft stool Remove outside, then turn 2 the 6th screwed holes in left rotary shaft, just emery wheel can be pulled down and be changed or repaired.
A kind of drum-type grinding head device of the present invention can save substantial amounts of space, greatly reduce energy consumption, improve product Qualification rate, and can more easily realize the angle of regulation emery wheel, also very simple the step of dismounting and change emery wheel, operation Difficulty is low.
Brief description of the drawings
Fig. 1 is a kind of axonometric schematic diagram of drum-type grinding head device of the invention;Fig. 2 is a kind of drum-type bistrique dress of the invention Put fixed seat schematic side view;Fig. 3 is the schematic top plan view of right spindle in a kind of drum-type grinding head device of the invention;Fig. 4 is this Invent left rotary shaft schematic top plan view in a kind of drum-type grinding head device;Fig. 5 is left-hand rotation in a kind of drum-type grinding head device of the invention Axle schematic side view.
In figure, 1- fixed seats, 2- pedestals, 3- left rotary shafts, 4- left-hand rotation shaft stools, 5- emery wheels, 6- right spindles, 7- right spindle branch Seat, the screwed holes of 8- the 4th, the screwed holes of 81- the 5th, the screwed holes of 82- second, the screwed holes of 83- the 3rd, the screwed holes of 85- first, 86- 6th screwed hole, the screwed holes of 87- the 7th, 9- through holes, 10- arcuate sockets, 11- circular holes, 12- central shafts, the keyways of 131- first, 132- Second keyway, 133- key-grooves, 14- bases, 15- adjustment handwheels, 16- depth of cut scales, 17- depth of cut display screens, 18- mills The amount of cutting scale, 19- stock removal display screens.
Embodiment
The present invention is illustrated in conjunction with accompanying drawing:A kind of drum-type grinding head device, including fixed seat 1, pedestal 2, Left rotary shaft 3, left-hand rotation shaft stool 4, emery wheel 5, right spindle 6, right-hand rotation shaft stool 7, base 14 and adjustment handwheel 15.
There is a depth of cut scale 17 on the right side of base 14.Centre position of the handwheel 15 in the front of base 14 is adjusted, is used for Adjust the front and back position of pedestal 2;Pedestal 2 is arranged on base 14, and there is a stock removal scale 18 in left side.Fixed seat 1 is arranged on On pedestal 2, the middle part of the left and right sides of fixed seat 1, which respectively has, 4 the first screwed holes 85 around a circular hole 11, circular hole 11, It is symmetric;The left survey of the bottom of fixed seat 1 has 3 arcuate sockets 10, before 3 arcuate sockets 10 in after point one arrangement, and this 3 The curved distribution of arcuate socket 10;There are second screwed hole 82, the second screwed hole 82 and base in the side of the bottom left of fixed seat 1 The 3rd screwed hole 83 on seat is connected with screw, and the angle of fixed seat 1 can be adjusted by adjusting screw;The right side of fixed seat 1 An arcuate socket 10 is respectively arranged before and after end, has the 4th screwed hole 8 between two arcuate sockets 10;The right side of fixed seat 1 is also There are depth of cut display screen 17 and stock removal display screen 19.
There is a circular hole 11 centre of left-hand rotation shaft stool 4, and the size of circular hole 11 and circular hole 11 in fixed seat 1 are in the same size, left Four angles of shaft seating 4 are provided with circular hole 9,4 the first screw thread hole sites and in the same size, circular hole 9 with the left side of fixed seat 1 To effect be the left side that left-hand rotation shaft stool 4 is fixed on fixed seat 1.The structure of right-hand rotation shaft stool 7 is than left-hand rotation shaft stool more than 4 2 the 5th screwed holes 81, the 5th screwed hole 81 is fixed in the left and right sides being located in the middle part of right-hand rotation shaft stool 7, right-hand rotation shaft stool 7 The right side of fixed seat 1.
There is first keyway 131 the left end side surface of left rotary shaft 3, and right side side, which has, 2 on the second keyway 132, axle Individual 6th screwed hole 86, the left end of left rotary shaft 3 connects the transmission device of motor, and the right-hand member of left rotary shaft 3 is then connection emery wheel 5.It is right There is a key-groove 133 on the left end surface of rotating shaft 6, and the left end right end face of right spindle 6 has 2 the 7th screwed holes 87, in pair Claim distribution, the left end connection emery wheel 5 of right spindle 6.Respectively there is a keyway at the two ends of central shaft 12 inside emery wheel 5, on keyway It is connected using spline with left rotary shaft 3, right spindle 6.
The rotating manner of the drum-type grinding head device is:Drum-type grinding head device is assembled by above-mentioned method, each Individual screwed hole, arcuate socket are loaded onto after corresponding screw, the screw on the arcuate socket 10 of adjustment fixed seat 1 bottom left and right ends, just It can make fixed seat 1 is curved centered on the 4th screwed hole 8 on the right-hand member of the bottom of fixed seat 1 to rotate, so that emery wheel 5 Also arcuate rotation can be presented, so as to adjust stock removal.Adjustment handwheel 15 is rotated, the front and back position of pedestal 2 can be adjusted, just can Adjust the depth of cut of drum-type bistrique.
The dismounting mode of the drum-type grinding head device is:Four screws on right-hand rotation shaft stool 7 are screwed down, turned right Twisted inward using screw on 2 the 5th screwed holes 81 on shaft stool 7, such right-hand rotation shaft stool 7 can just be removed outward, by There is screw to block right-hand rotation shaft stool 7 in the 7th screwed hole 87 of the right-hand member of right spindle 6, so that right spindle 6 can be with right spindle Bearing 7 is removed outward together, then turns 2 the 6th screwed holes 86 in left rotary shaft 3, just emery wheel 5 can be pulled down progress Change or repair.

Claims (7)

1. a kind of drum-type grinding head device, it is characterised in that:Including fixed seat(1), pedestal(2), left rotary shaft(3), left rotary shaft branch Seat(4), emery wheel(5), right spindle(6), right-hand rotation shaft stool(7), base(14)With adjustment handwheel(15);Adjust handwheel(15)The bottom of at Seat(14)The centre position in front, pedestal(2)Installed in base(14)On;Fixed seat(1)Installed in pedestal(2)On, it is fixed Seat(1)The middle part of the left and right sides respectively have a circular hole(11), fixed seat(1)Both sides be separately installed with left-hand rotation shaft stool(4) With right-hand rotation shaft stool(7);Left rotary shaft(3)Left end connects motor, left rotary shaft(3)Right-hand member and emery wheel(5)The central shaft of left end(12) Connection;Right spindle(6)Left end and emery wheel(5)The central shaft of right-hand member(12)Connection.
2. a kind of drum-type grinding head device according to claim 1, it is characterised in that:Fixed seat(1)The left and right sides Respectively there is a circular hole at middle part(11), circular hole(11)Surrounding also has 4 the first screwed holes(85), it is symmetric;Fixed seat(1)Bottom The left end in portion has 3 arcuate sockets(10), and this 3 arcuate sockets(10)Curved distribution, in fixed seat(1)The side of bottom left There is second screwed hole(82), the second screwed hole(82)With pedestal(2)On the 3rd screwed hole(83)It is connected with screw, is led to Fixed seat can be adjusted by overregulating screw(1)Angle;Fixed seat(1)The two ends of right-hand member respectively have an arcuate socket(10), 2 Arcuate socket(10)Between have the 4th screwed hole(8).
3. a kind of drum-type grinding head device according to claim 1 or 2, it is characterised in that:Left rotary shaft(3)On have two Six screwed holes(86), right-hand rotation shaft stool(7)There are two the 7th screwed holes at middle part(87), right spindle(6)7th screwed hole of right-hand member (87)There is screw to block right-hand rotation shaft stool(7), so that right spindle(6)Can be with right-hand rotation shaft stool(7)Pull down outward together.
4. a kind of drum-type grinding head device according to claim 1 or 2, it is characterised in that:Described base(14)Right side There is a depth of cut scale(16), being capable of display base(2)Mobile distance.
5. a kind of drum-type grinding head device according to claim 1 or 2, it is characterised in that:Described fixed seat(1)Right side There is a depth of cut display screen(17), being capable of display base(2)Mobile distance.
6. a kind of drum-type grinding head device according to claim 1 or 2, it is characterised in that:Described pedestal(2)Left side has One stock removal scale(18), fixed seat can be shown(1)The angle of rotation.
7. a kind of drum-type grinding head device according to claim 1 or 2, it is characterised in that:Described fixed seat(1)Right side There is a stock removal display screen(19), fixed seat can be shown(1)The angle of rotation.
CN201710664585.0A 2017-08-07 2017-08-07 A kind of drum-type grinding head device Pending CN107263310A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710664585.0A CN107263310A (en) 2017-08-07 2017-08-07 A kind of drum-type grinding head device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710664585.0A CN107263310A (en) 2017-08-07 2017-08-07 A kind of drum-type grinding head device

Publications (1)

Publication Number Publication Date
CN107263310A true CN107263310A (en) 2017-10-20

Family

ID=60076654

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710664585.0A Pending CN107263310A (en) 2017-08-07 2017-08-07 A kind of drum-type grinding head device

Country Status (1)

Country Link
CN (1) CN107263310A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109015121A (en) * 2018-08-24 2018-12-18 辽宁科技大学 A kind of compound magnetic grinder of roller and method
CN109333220A (en) * 2018-10-16 2019-02-15 刘小辉 A kind of decanter type edge polisher and its method of edging

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH312331A (en) * 1953-02-18 1955-12-31 Vogler Werner Device for exchangeable clamping of a tool.
FR2229504A1 (en) * 1973-05-14 1974-12-13 Karlstad Mekaniska Ab
JPH0825196A (en) * 1994-07-15 1996-01-30 Nisshin Steel Co Ltd Grinding machine for roll and automatic grinding equipment
JPH11333648A (en) * 1998-05-25 1999-12-07 Fuji Oozx Inc Grinding machine
CN201863123U (en) * 2010-10-13 2011-06-15 中国水电建设集团夹江水工机械有限公司 Portable grinding head
CN102729107A (en) * 2012-07-17 2012-10-17 邹伟进 Double-station high-precision rubber covered roller grinding machine
CN102922381A (en) * 2012-11-21 2013-02-13 邹伟进 Device for grinding thick and thin yarn rubber covered rollers
CN204843839U (en) * 2015-03-31 2015-12-09 湖北远蓝机器有限公司 Grinding wheel spindle subassembly
CN205471377U (en) * 2016-01-28 2016-08-17 河南中烟工业有限责任公司 Quick assembly disassembly's belt feeder brush
CN205820240U (en) * 2016-07-13 2016-12-21 福建利豪电子科技股份有限公司 The roller mechanism of fast assembling-disassembling
CN207087603U (en) * 2017-08-07 2018-03-13 广东标华科技有限公司 A kind of drum-type grinding head device

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH312331A (en) * 1953-02-18 1955-12-31 Vogler Werner Device for exchangeable clamping of a tool.
FR2229504A1 (en) * 1973-05-14 1974-12-13 Karlstad Mekaniska Ab
JPH0825196A (en) * 1994-07-15 1996-01-30 Nisshin Steel Co Ltd Grinding machine for roll and automatic grinding equipment
JPH11333648A (en) * 1998-05-25 1999-12-07 Fuji Oozx Inc Grinding machine
CN201863123U (en) * 2010-10-13 2011-06-15 中国水电建设集团夹江水工机械有限公司 Portable grinding head
CN102729107A (en) * 2012-07-17 2012-10-17 邹伟进 Double-station high-precision rubber covered roller grinding machine
CN102922381A (en) * 2012-11-21 2013-02-13 邹伟进 Device for grinding thick and thin yarn rubber covered rollers
CN204843839U (en) * 2015-03-31 2015-12-09 湖北远蓝机器有限公司 Grinding wheel spindle subassembly
CN205471377U (en) * 2016-01-28 2016-08-17 河南中烟工业有限责任公司 Quick assembly disassembly's belt feeder brush
CN205820240U (en) * 2016-07-13 2016-12-21 福建利豪电子科技股份有限公司 The roller mechanism of fast assembling-disassembling
CN207087603U (en) * 2017-08-07 2018-03-13 广东标华科技有限公司 A kind of drum-type grinding head device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109015121A (en) * 2018-08-24 2018-12-18 辽宁科技大学 A kind of compound magnetic grinder of roller and method
CN109333220A (en) * 2018-10-16 2019-02-15 刘小辉 A kind of decanter type edge polisher and its method of edging
CN109333220B (en) * 2018-10-16 2024-01-30 刘小辉 Sedimentation type edge grinding machine and edge grinding processing method thereof

Similar Documents

Publication Publication Date Title
CN207324956U (en) A kind of driven stone grinding machine
CN207385590U (en) A kind of brown rice milling device
CN106378689A (en) Angle grinder capable of adjusting angle of grinding disk
CN108972192A (en) A kind of rotating electric machine shell end face flattening apparatus
CN107263310A (en) A kind of drum-type grinding head device
CN108273601A (en) A kind of soymilk making soybean grinding device
CN205628088U (en) Wheat milling machine for experiments
CN207087603U (en) A kind of drum-type grinding head device
CN204700700U (en) A kind of polishing equipment
CN206936973U (en) A kind of paper cutter round cutting-off tool sharpener
CN104742011B (en) A kind of circulation feeding device applied to the processing of sphere
CN104249007B (en) A kind of buffing machine
CN109394011A (en) A kind of slow mill speed change coffee grinder
CN105313184B (en) Multi-functional many band saws and its installation method
CN204147904U (en) A kind of polishing machine
CN204565867U (en) A kind of circulation feeding device being applied to the processing of sphere
CN208483652U (en) A kind of novel automatic polishing equipment
CN205031102U (en) Imitative stone mill soybean milk machine of hand formula
CN106926087A (en) A kind of sanding apparatus
CN202985122U (en) Multi-directional adjustable super-long shaft supporting frame
CN203509935U (en) Grinding wheel trimming mechanism with adjustable trimmer position
CN206811701U (en) A kind of two-sided grinding head of multi-functional five-axis machine tool
CN205765323U (en) A kind of irregular sanding machine
CN206577838U (en) A kind of grinder
CN108385493A (en) A kind of adjustable inspection shaft inside cutting cutting mill of height

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20171020