CN106670594A - Device for long and thin threaded shaft turning of lathe - Google Patents
Device for long and thin threaded shaft turning of lathe Download PDFInfo
- Publication number
- CN106670594A CN106670594A CN201610861172.7A CN201610861172A CN106670594A CN 106670594 A CN106670594 A CN 106670594A CN 201610861172 A CN201610861172 A CN 201610861172A CN 106670594 A CN106670594 A CN 106670594A
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- CN
- China
- Prior art keywords
- hole
- plane
- lathe
- cutter
- turning
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/44—Equipment or accessories specially designed for machines or devices for thread cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G3/00—Arrangements or accessories for enabling machine tools not specially designed only for thread cutting to be used for this purpose, e.g. arrangements for reversing the working spindle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
Abstract
The invention discloses a device for long and thin threaded shaft turning of a lathe. The device for long and thin threaded shaft turning of the lathe is mounted on a large carriage of the lathe and comprises a base, a guide sleeve, a telescopic sleeve, a tool reset ring, thread length control mechanisms and tool assemblies. The device has the beneficial effects that due to the arrangement of three sets of threaded tools distributed circumferentially and evenly, threaded shaft deformation in the turning process is reduced, and machining quality is guaranteed; due to arranged adjusting sleeves, the length of a thread on each to-be-turned long and thin shaft can be controlled precisely; due to the arrangement of first inclined faces and third inclined faces capable of being in contact with each other or being separated from each other, thread ending machining can be achieved precisely, and the tool collapse situation is effectively avoided; and due to the arranged tool reset ring, the three sets of threaded tools can contract towards the center at the same time, and operation is fast and convenient.
Description
Technical field
The present invention relates to machining technology field, relate in particular to one kind carries out elongated thread axle turning for lathe
Device.
Background technology
In process clamping workpiece is difficult for the screw thread little for nominal diameter, processing length length and workpiece stiffness are poor, spiral shell
Line cuts unstable, workpiece and is difficult to keep stable state etc., causes elongate rod axis of external thread flexural deformation, form of thread not to be advised
The problems such as model, random tooth, preferably, hardness is poor for elongate rod threaded male component material plasticity, toughness.If additionally, threaded portion is located at
Slender axles medium position, because diameter of work is little, poor rigidity, will produce very large deformation and cause the processing cannot in working angles
Proceed.
The content of the invention
The present invention mainly solves the technical problem existing for prior art, carries out subtracting used in lathe so as to provide one kind
Lack machining deformation and the device of thread turning can be carried out to slender axles middle part.
The technical scheme is that：A kind of device that elongated thread axle turning is carried out for lathe, it is described for lathe
The device for carrying out elongated thread axle turning is arranged on the saddle of the lathe, and it includes base, fairlead, telescopic, knife
Tool reset ring, reach control assembly and toolbox.
The base is fixed on the saddle upper surface of the lathe, and a boss, position are provided with the right side of the base
The boss periphery is provided with three uniform first step holes being made up of unthreaded hole and screwed hole, base middle part is provided with one
By the hole A being relatively large in diameter and the less hole B of diameter is constituted on the boss second step hole, it is provided with the hole A
The gathering sill of one left and right directions.
The fairlead is cylinder, and its endoporus is used for through the elongated thread axle for treating turning, outer round surface with it is described
Hole B interference fits.
The telescopic includes guide part and fixed part, and middle part is provided with one by through the described elongated spiral shell for treating turning
3rd stepped hole of the hole D compositions that the hole C and of line axle coordinates with the fairlead Outer cylindrical into gap, the guiding
Portion be arranged on the hole A in and formed gap cooperation, and be further fixed on the guide part one with the hole A in guiding flute profile
Into the feather key of removable cooperation, the relatively described base of the fairlead can be made to stretch out to the left or retract to the right, the fixation
A baffle ring is provided with right side on the external cylindrical surface in portion, left side is provided with three for installing the toolbox
T-slot, the fixed part is additionally provided with three left and right directions and circumferential uniform be made up of hole E and hole F and First
The 4th relative stepped hole of rank hole；
The cutter reset ring set is mounted on the fixed part external cylindrical surface on the left of the baffle ring, the cutter reset ring
Inner side arranges three uniform open slots being made up of flat bottoms and wedged bottom portion.
The toolbox has three groups, is mounted in the T-slot on the fixed part left side, including screw thread
Knife, Cutting tool installation manner block, the first spring and block, the block is fixedly mounted on the T-slot on the left of the fixed part of the telescopic
Bottom, Cutting tool installation manner block left side is provided with the holding tank for installing the screwer, right side be provided with above-below direction and with
The T-slot forms T-shaped piece for being slidably matched, and at described T-shaped piece of middle part a radial slot is arranged, and the bottom land of the radial slot sets
A step with the first inclined-plane is equipped with, the T-shaped piece of bottom also sets up a blind hole, and first spring is arranged in the blind hole,
Wherein one end props up the bottom of the blind hole, and the other end props up the block, and the T-shaped piece of upper end is additionally provided with one with a plane
With the projection on one second inclined-plane, during work, first spring can make the Cutting tool installation manner block be displaced outwardly and make the spiral shell
Line knife leaves the surface of the elongated thread axle, is moved to the left the cutter reset ring, makes the flat of the cutter reset ring
During the plane contact of bottom and the boss of the T-shaped piece of upper end, the screwer is moved inward and realizes that the screwer resets.
The reach control assembly has three groups, including pull bar, second spring and adjustment swivel nut, the adjusting sleeve
Outer cylinder surface is provided with the external screw thread screwed with the screwed hole in first step hole, adjusts the adjusting sleeve and stretches out the base right side
The length of side can arrange the length of the screw thread for treating turning, and the pull bar includes sequentially passing through the hole F, unthreaded hole from left to right
And the sliding part outside the right side of the adjusting sleeve is stretched out after the endoporus of the adjusting sleeve and the hole E is slidably mounted in
Screens portion that is interior and extending out to the left in described T-shaped piece of radial slot, the right-hand member of the sliding part is fixed with a back-up ring, and described
Two springs are sleeved on the sliding part between the hole E bottoms and screens portion, are additionally provided with one on the inside of the screens portion and are carried
The breach on the 3rd inclined-plane, the gradient on the 3rd inclined-plane is consistent with the first inclined-plane of the bottom land of described T-shaped piece of radial slot, and first
The contact length on inclined-plane and the 3rd inclined-plane is 2 ~ 3mm, during cutted thread, while the telescopic stretches out to the left, is driven described
Pull bar also slides to the left, when the back-up ring of the right-hand member of the pull bar is contacted with the right side of the adjusting sleeve, the telescopic after
Then make first inclined-plane progressively disengage with the 3rd inclined-plane when continuous mobile to contact and realize the ending processing to screw thread, when described the
When one inclined-plane and completely disengaged the 3rd inclined-plane, the Cutting tool installation manner block be quickly displaced outwardly in the presence of first spring and
The point of a knife for making the screwer is quickly moved away from surface of the work.
Therefore the beneficial effect of this device is：Due to being provided with circumferential three uniform external threading knives, reduce thread spindle and exist
Deformation in turning process, it is ensured that crudy；Due to being provided with adjusting sleeve, relatively accurately can control to treat the slender axles of turning
On reach；Can contact with each other or detached first inclined-plane and the 3rd inclined-plane due to being provided with, can accurately realize
The ending processing of screw thread, is effectively prevented the occurrence of collapsing knife；Due to being provided with the multiple ring of cutter, three external threading knives are enable simultaneously
To central reduction, operate quick and convenient.
Description of the drawings
Fig. 1 is the front view of the device that elongated thread axle turning is carried out for lathe of the present invention；
Fig. 2 is the top view of the device that elongated thread axle turning is carried out for lathe of the present invention；
Fig. 3 is the left view of the device that elongated thread axle turning is carried out for lathe of the present invention；
Fig. 4 is the close-up schematic view at the I in Fig. 1；
Fig. 5 is the structural representation of the cutter reset ring of the device that elongated thread axle turning is carried out for lathe of the present invention；
Fig. 6 is the structural representation of the pull bar of the device that elongated thread axle turning is carried out for lathe of the present invention；
Fig. 7 is the enforcement exemplary plot of the device that elongated thread axle turning is carried out for lathe of the present invention.
Specific embodiment
A kind of device that elongated thread axle turning is carried out for lathe, it is described to carry out elongated thread axle turning for lathe
Device is arranged on the saddle of the lathe, and it includes base 1, fairlead 2, telescopic 3, cutter reset ring 4, reach
Control assembly and toolbox.
The base 1 is fixed on the saddle upper surface of the lathe, and the right side of the base 1 is provided with a boss,
The boss periphery is provided with three uniform first step holes 13 being made up of unthreaded hole 131 and screwed hole 132, base 1
The second step that middle part is provided with one by the hole A111 being relatively large in diameter and the less hole B112 of diameter is constituted on the boss
Hole, is provided with the gathering sill 12 of a left and right directions in the hole A111.
The fairlead 2 is cylinder, and its endoporus is used for through the elongated thread axle for treating turning, outer round surface with it is described
Hole B112 interference fits.
The telescopic 3 includes guide part 31 and fixed part 32, and middle part is provided with one by through described in treating turning
The 3rd of the hole D332 compositions that the hole C331 and of elongated thread axle coordinates with the Outer cylindrical of the fairlead 2 into gap
Rank hole, the guide part 31 is arranged in the hole A111 and forms gap cooperation, and is further fixed on one on the guide part 31
The removable feather key for coordinating is formed with the gathering sill 12 in the hole A111, the relatively described base 1 of the fairlead 3 can be made
Stretch out to the left or retract to the right, a baffle ring 321, left side are provided with right side on the external cylindrical surface of the fixed part 32
Three are provided with for installing the T-slots 322 of the toolbox, the fixed part 32 be additionally provided with three left and right directions,
And circumferential uniform fourth stepped hole relative with first step hole 13 being made up of hole E323 and hole F324.
The cutter reset ring 4 is sleeved on the external cylindrical surface of the fixed part 32 in the left side of the baffle ring 321, described
The inner side of cutter reset ring 4 arranges three uniform open slots 41 being made up of flat bottoms 411 and wedged bottom portion 412.
The toolbox has three groups, is mounted in the T-slot 322 on the left side of the fixed part 32, including
Screwer 51, Cutting tool installation manner block 52, the first spring 53 and block 54, the block 54 is fixedly mounted on consolidating for the telescopic 3
Determine the bottom of T-slot 322 in the left side of portion 32, the left side of the Cutting tool installation manner block 52 is provided with the holding tank for installing the screwer 51
521, it is that right side is provided with above-below direction and form be slidably matched T-shaped piece 522 with the T-slot 322, at described T-shaped piece
522 middle part arranges a radial slot 523, and the bottom land of the radial slot 523 is provided with a step 524 with the first inclined-plane 525, institute
State T-shaped piece of 522 bottoms and also set up a blind hole, first spring 53 is arranged in the blind hole, and wherein one end props up the blind hole
Bottom, the other end props up the block 54, and it is oblique with a plane 5261 and one second that T-shaped piece of 522 upper ends are additionally provided with one
The projection 526 in face 5262, during work, first spring 53 can make the Cutting tool installation manner block 52 be displaced outwardly and make the spiral shell
Line knife 51 leaves the surface of the elongated thread axle, is moved to the left the cutter reset ring 4, makes the cutter reset ring 4
Flat bottoms 411 when contacting with the plane 5261 of the boss 526 of T-shaped piece of 522 upper ends, the screwer 51 move inward and
Realize that the screwer 51 resets.
The reach control assembly has three groups, including pull bar 61, second spring 62 and adjustment swivel nut 63, the tune
A whole set of 63 outer cylinder surface is provided with the external screw thread screwed with the screwed hole 132 in first step hole 13, adjusts the adjusting sleeve
63 length for stretching out the right flank of the base 1 can arrange the length of the screw thread for treating turning, and the pull bar 61 is included from left to right
Stretch out after the endoporus for sequentially passing through the hole F324, unthreaded hole 131 and the adjusting sleeve 63 outside the right side of the adjusting sleeve 63
Sliding part 611 and be slidably mounted in the hole E323 and extend out to the left in described T-shaped piece 522 of radial slot 523
Screens portion 612, the right-hand member of the sliding part 611 is fixed with a back-up ring 64, and the second spring 62 is sleeved on the hole E323
On sliding part 611 between bottom and screens portion 612, the inner side in the screens portion 612 is additionally provided with one with the 3rd inclined-plane 614
Breach 613, the gradient on the 3rd inclined-plane 614 and the first inclined-plane 525 1 of the bottom land of described T-shaped piece 522 of radial slot 523
Cause, the contact length on the first inclined-plane 525 and the 3rd inclined-plane 614 is 2 ~ 3mm, during cutted thread, what the telescopic 3 stretched out to the left
Meanwhile, drive the pull bar 61 also to slide to the left, when the right-hand member of back-up ring 64 and the adjusting sleeve 63 of the right-hand member of the pull bar 61
Face contact when, then make when the telescopic 3 is continued to move to first inclined-plane 525 progressively disengage with the 3rd inclined-plane 614 contact and
Realize processing the ending of screw thread, when the inclined-plane 614 of first inclined-plane 525 and the 3rd is completely disengaged, the Cutting tool installation manner block
52 are quickly displaced outwardly in the presence of first spring 53 and make the point of a knife of the screwer 51 quickly be moved away from surface of the work.
Due to being provided with circumferential three uniform external threading knives, deformation of the thread spindle in turning process is reduced, it is ensured that plus
Working medium amount；Due to being provided with adjusting sleeve, the reach on slender axles that can relatively accurately control treat turning；Due to being provided with
Can contact with each other or detached first inclined-plane and the 3rd inclined-plane, can accurately realize the ending processing of screw thread, effectively prevent
The occurrence of only collapsing knife；Due to being provided with the multiple ring of cutter, enable three external threading knives simultaneously to central reduction, the quick side of operation
Just.
Claims (2)
1. a kind of device that elongated thread axle turning is carried out for lathe, the dress that elongated thread axle turning is carried out for lathe
Put on the saddle of the lathe, it includes base（1）, fairlead（2）, telescopic（3）, cutter reset ring（4）, spiral shell
Line length control mechanism and toolbox；
The base（1）On the saddle of the lathe, the base（1）Right side be provided with a cylinder, positioned at institute
State cylinder periphery be provided with three it is uniform by unthreaded hole（131）Become big suddenly with diameter and female deep hole is set（132）
The first step hole of composition（13）, base（1）Middle part is provided with one by the hole A being relatively large in diameter（111）With on the cylinder
The less hole B of diameter（112）The second step hole of composition, the hole A（111）Inside it is provided with the rectangular cross-section of a left and right directions
Elongated slot（12）；
The fairlead（2）For cylinder, installed in the hole B（112）Interior and form interference fit, its endoporus is used for through treating car
The elongated thread axle cut；
The telescopic（3）Including the less support shaft of diameter（31）With the disk being relatively large in diameter（32）, middle part be provided with one by
To the hole C through the elongated thread axle for treating turning（331）The fairlead is sleeved on one（2）Between going up and being formed
The hole D that gap coordinates（332）3rd stepped hole of composition, the support shaft（31）Installed in the hole A（111）It is interior and form gap
Coordinate, and the support shaft（31）On be further fixed on one with the hole A（111）Interior elongated slot（12）Form leading for removable cooperation
Xiang Jian, can make the fairlead（3）Relatively described base（1）Stretch out to the left or retract to the right, the disk（32）It is cylindrical
A flange is provided with cylinder at right side（321）, left side is provided with three knives for installing the toolbox
Tool mounting groove（322）, the disk（32）Be additionally provided with three left and right directions and circumferential uniform by hole E（323）With hole F
（324）Constitute and first step hole（13）The 4th relative stepped hole；
The cutter reset ring（4）It is sleeved on positioned at the flange（321）The disk in left side（32）It is described on external cylindrical surface
Cutter reset ring（4）Inner side arrange three it is uniform by flat bottoms（411）With wedged bottom portion（412）The open slot of composition（41）；
The toolbox has three groups, is mounted on the disk（32）Cutting tool installation manner groove on left side（322）It is interior, bag
Include lathe tool（51）, cutter fixed block（52）, compression spring（53）And block（54）, the block（54）It is fixedly mounted on described stretching
Contracting set（3）Disk（32）The Cutting tool installation manner groove in left side（322）Bottom, the cutter fixed block（52）Left side is provided with installation institute
State lathe tool（51）Square hole（521）, right side be provided with above-below direction and with the Cutting tool installation manner groove（322）It is equal sized and
With the Cutting tool installation manner groove（322）The slide block that formation is slidably matched（522）, in the slide block（522）Middle part arrange one radially
Breach（523）, the radial indentation（523）Bottom be provided with one band inclined-plane A（525）Right low left high Z-type step
（524）, the slide block（522）Bottom also sets up a blind hole, first spring（53）In the blind hole, wherein one
End props up the bottom of the blind hole, and the other end props up the block（54）, the slide block（522）Upper end is additionally provided with one with one
Plane（5261）With an inclined-plane B（5262）Projection（526）, during work, first spring（53）Pacify can the cutter
Dress block（52）It is displaced outwardly and makes the lathe tool（51）The surface of the elongated thread axle is left, the cutter is moved to the left
Reset ring（4）, make the cutter reset ring（4）Flat bottoms（411）With the slide block（522）The projection of upper end（526）It is flat
Face（5261）During contact, the lathe tool（51）Move inward and realize the lathe tool（51）Reset；
The reach controlling organization has three groups, including expansion link（61）, second spring（62）With adjustment swivel nut（63）, institute
State adjustment swivel nut（63）Outer cylinder surface be provided with and first step hole（13）Deep hole（132）The outer spiral shell that screws of internal thread
Line, adjusts the adjustment swivel nut（63）Stretch out the base（1）The length of right flank can arrange the length of the screw thread for treating turning,
The expansion link（61）Including sequentially passing through the hole F from left to right（324）, unthreaded hole（131）And the adjustment swivel nut（63）'s
The adjustment swivel nut is stretched out after endoporus（63）Right side outside slender axles（611）Be slidably mounted in the hole E
（323）It is interior and extend out to the slide block to the left（522）Radial indentation（523）Interior top pressure axle（612）, the slender axles
（611）Right-hand member be additionally provided with a collar（64）, the second spring（62）It is sleeved on the hole E（323）Bottom and top pressure axle
（612）Between slender axles（611）On, the top pressure axle（612）Inner side be additionally provided with one with inclined-plane C（614）Bayonet socket
（613）, the inclined-plane C（614）Gradient and the slide block（522）Radial indentation（523）Z-type step inclined-plane A（525）
Unanimously, inclined-plane A（525）With inclined-plane C（614）Contact length be 2-3mm, during cutted thread, the telescopic（3）Stretch out to the left
While, drive the expansion link（61）Also slide to the left, when the expansion link（61）Right-hand member collar（64）With the tune
Whole swivel nut（63）Right side contact when, the telescopic（3）The inclined-plane A is then made when continuing to move to（525）With inclined-plane C
（614）Progressively disengage contact and realize that the ending to screw thread is processed, as the inclined-plane A（525）With inclined-plane C（614）It is completely disengaged
When, the Cutting tool installation manner block（52）In first spring（53）In the presence of be quickly displaced outwardly and make the lathe tool（51）'s
Point of a knife is quickly moved away from surface of the work.
2. the device that elongated thread axle turning is carried out for lathe according to claim 1, it is characterised in that：The cutter
Mounting groove（322）Can be T-slot, or dovetail groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610861172.7A CN106670594B (en) | 2016-09-29 | 2016-09-29 | One kind carrying out elongated thread axis truning fixture for lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610861172.7A CN106670594B (en) | 2016-09-29 | 2016-09-29 | One kind carrying out elongated thread axis truning fixture for lathe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106670594A true CN106670594A (en) | 2017-05-17 |
| CN106670594B CN106670594B (en) | 2018-08-21 |
Family
ID=58839994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610861172.7A Active CN106670594B (en) | 2016-09-29 | 2016-09-29 | One kind carrying out elongated thread axis truning fixture for lathe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106670594B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107470652A (en) * | 2017-08-26 | 2017-12-15 | 汪任斌 | A kind of septal fossula grooving apparatus for lathe |
| CN114505547A (en) * | 2022-03-09 | 2022-05-17 | 胡家保 | Device for turning long and thin threaded shaft on lathe |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62150023U (en) * | 1986-03-14 | 1987-09-22 | ||
| CN201009019Y (en) * | 2007-03-12 | 2008-01-23 | 刘玉成 | Waveshape threading lathe |
| CN204171486U (en) * | 2014-10-11 | 2015-02-25 | 四川凯泓水利机械制造有限公司 | Overlength screw rod processing milling machine |
| CN204747515U (en) * | 2015-04-30 | 2015-11-11 | 绵阳市永庆机械有限公司 | Profile modeling screw cutting process instrument lathe |
-
2016
- 2016-09-29 CN CN201610861172.7A patent/CN106670594B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62150023U (en) * | 1986-03-14 | 1987-09-22 | ||
| CN201009019Y (en) * | 2007-03-12 | 2008-01-23 | 刘玉成 | Waveshape threading lathe |
| CN204171486U (en) * | 2014-10-11 | 2015-02-25 | 四川凯泓水利机械制造有限公司 | Overlength screw rod processing milling machine |
| CN204747515U (en) * | 2015-04-30 | 2015-11-11 | 绵阳市永庆机械有限公司 | Profile modeling screw cutting process instrument lathe |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107470652A (en) * | 2017-08-26 | 2017-12-15 | 汪任斌 | A kind of septal fossula grooving apparatus for lathe |
| CN114505547A (en) * | 2022-03-09 | 2022-05-17 | 胡家保 | Device for turning long and thin threaded shaft on lathe |
| CN114505547B (en) * | 2022-03-09 | 2024-02-06 | 陕西中恒伟创金属材料有限公司 | Turning device for turning long and thin threaded shaft of lathe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106670594B (en) | 2018-08-21 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20180627 Address after: 221400 Taihang Mountain Road, north ditch town, Xinyi City, Xuzhou, Jiangsu, 38 Applicant after: Xuzhou Lida sewing equipment manufacturing Co., Ltd. Address before: 314416 Wei Peng Yan tou 6, Peng Dun village, Yuanhua Town, Haining City, Jiaxing, Zhejiang Applicant before: Zhou Xiaofei |
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