CN105223056B - A kind of swing type contracting device - Google Patents
A kind of swing type contracting device Download PDFInfo
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- CN105223056B CN105223056B CN201510695451.6A CN201510695451A CN105223056B CN 105223056 B CN105223056 B CN 105223056B CN 201510695451 A CN201510695451 A CN 201510695451A CN 105223056 B CN105223056 B CN 105223056B
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- swinging block
- guiding gutter
- hole
- swing type
- eccentric wheel
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Abstract
The invention discloses a kind of swing type contracting device, including installing plate, drive device, reduction device and charging box, installing plate is arranged at the upper end charging aperture of charging box；Reduction device includes guiding gutter, eccentric wheel, connecting shaft and swinging block, eccentric wheel is provided with mounting hole, the driving axis connection of mounting hole and drive device, connecting hole is additionally provided with the wheel disc of eccentric wheel, the centre position of swinging block is provided with the slotted hole of vertical direction, one end of connecting shaft is fixedly connected with connecting hole, its other end and slotted hole slidable connection, guiding gutter pair of vertical is arranged on the both ends of swinging block, the opening of every a pair of guiding gutters is relative, the bottom land of every a pair of guiding gutters is rotationally connected with swinging block and installing plate simultaneously, guiding gutter is driven to do periodic reverse swing together by swinging block, the lower end of guiding gutter is extended in the inner chamber of charging box.The present invention is combined by eccentric wheel, connecting shaft and swinging block drives guiding gutter to swing, and makes the uniform division of coal dust, the coal dust noresidue of division, without mixing.
Description
Technical field
The present invention relates to coal sample making technology field, more particularly to a kind of swing type contracting device.
Background technology
With the development of power construction cause, coal-burning power plant constantly goes into operation and run, and its operation and management level also carries therewith
Height, ature of coal sample detecting workload increase, and mechanical sampling equipment progressively instead of artificial sample, and its complexity is also increasingly
Height, multistage sampling is developed into by initial single-stage sampling.In mechanical sampling sample preparation, division is the key procedure of sample preparation, mesh
Be reduce sample size.Contracting device is primarily used for coal or prepared by the division of other granule materials samples.
The coal dust contracting device overwhelming majority in the market utilizes the structure of centrifugal force division.It is mainly by division cavity
13rd, belt 14, driving pulley 15, passive belt wheel 16, be rotated into hopper 17, the bearing collar 18, deep groove ball bearing 19, motor and fix
Chute 24, support plate 25, upper side stay under chute 23, the second division under plate 20, reducing motor 21, division baffle plate 22, the first division
Plate 26 and downside fagging 27 are formed.
As depicted in figs. 1 and 2, reducing motor 21 is arranged on motor fixing plate 20, and driving pulley 15 is inserted into motor shaft
Middle fixation, then be connected by belt 14 with passive belt wheel 16.Passive belt wheel 16 is fixedly linked with being rotated into hopper 17, passive belt wheel
16 are arranged on the bearing collar 18, and are supported on by deep groove ball bearing 19 on support plate 25.Support plate 25 is arranged on division chamber
The upper end of body 13.Division baffle plate 22 is arranged under the first division under the division of chute 23 and second by the coal feed point of chute 24, to adjust
Whole coal dust division amount.Finally fixed entirely through upside fagging 26 and downside fagging 37.
The operation principle of the contracting device is：Reducing motor 21 drives driving pulley 15 to rotate, and driving pulley 15 recycles skin
Band 14 drives passive belt wheel 16 to rotate, and then the hopper 17 that is rotated into for making to be fixed on passive belt wheel 16 rotates together with.Coal dust enters
Enter to be rotated into hopper 17, there is certain centrifugal force by rotary motion, outwards shed in exit.When being rotated into hopper 17
Outlet is rotated under the first division under the division of chute 23 and second during the coal powder entrance of chute 24, and a certain amount of coal dust is shed entrance
Under first division under the division of chute 23 and second in chute 24, reach the purpose of division.Adjustment division baffle plate 22 blocks the first contracting
The coal powder entrance size of chute 24 adjusts division amount under point lower division of chute 23 and second.
Due to centrifugal action, coal dust is patted in division cavity, makes substantial amounts of residual coal dust in cavity be present, with
The progress of coal dust is detected, the coal dust accumulation of residual increases, and the coal dust of detection easily produces with residual coal dust to be mixed, and data are forbidden
Really, meanwhile, after rotary speed is too high, detected coal dust can lose moisture.
The content of the invention
It is an object of the invention to overcome above-mentioned technical deficiency, there is provided a kind of swing type contracting device, the contracting device use inclined
Heart wheel, connecting shaft and swinging block combination drive guiding gutter periodic reverse to swing, meanwhile, coal dust is only by Action of Gravity Field without volume
Outer generation acceleration so that the uniform division of coal dust, and the coal dust noresidue of division, without mixing.
To achieve these goals, the technical solution adopted by the present invention is as follows：
A kind of swing type contracting device, including installing plate, drive device, reduction device and charging box, the installing plate installation
At the upper end charging aperture of the charging box；
The reduction device includes guiding gutter, eccentric wheel, connecting shaft and swinging block, and the eccentric wheel is provided with mounting hole,
The driving axis connection of the mounting hole and the drive device, connecting hole, the swing are additionally provided with the wheel disc of the eccentric wheel
The centre position of block is provided with the slotted hole of vertical direction, and one end of the connecting shaft is fixedly connected with the connecting hole, and its is another
End and the slotted hole slidable connection, the guiding gutter pair of vertical is arranged on the both ends of the swinging block, described in every a pair
The opening of guiding gutter is relative, and the bottom land of every a pair of guiding gutters is rotationally connected with the swinging block and the installing plate simultaneously,
The guiding gutter is driven to do periodic reverse swing together by the swinging block, the lower end of the guiding gutter extends to the packing
In the inner chamber of case.
Wherein, the connecting hole is waist-shaped hole, and one end of the waist-shaped hole is gradually distance from the mounting hole to the other end
The center of circle.
Wherein, one end that the connecting shaft is connected with the slotted hole on the swinging block is provided with rolling bearing, the rotation
The inner ring of bearing is rotatablely connected with the connecting shaft, and the outer ring of the rolling bearing is slided with the slotted hole on the swinging block to be connected
Connect.
Wherein, first rotating shaft and second rotating shaft of the bottom land of the guiding gutter provided with horizontal fixed setting, described first turn
The upper end of the bottom land is located in, second rotating shaft is arranged on the lower section of the first rotating shaft, the both ends of the first rotating shaft
It is rotatablely connected by revolving member and the swinging block, the both ends of second rotating shaft are turned by revolving member and the installing plate
Dynamic connection.
Wherein, the revolving member is rolling bearing, and the rolling bearing is arranged in corresponding bearing block.
Wherein, the drive device is reducing motor, and the reducing motor is fixed by motor cabinet and the installing plate to be connected
Connect.
Wherein, the motor shaft of the reducing motor is fixedly connected with the mounting hole of the eccentric wheel.
Wherein, packing plate is provided with the charging box, the charging box is divided into multiple cavitys by the packing plate, each
The bottom of the individual cavity is provided with discharging opening.
Compared with prior art, the invention has the advantages that：
A kind of swing type contracting device provided by the invention, rotated using motor driving eccentric wheel, eccentric wheel passes through company
Spindle assemblage zone movable pendulum motion block reciprocally swinging, swinging block are connected with guiding gutter, and then drive guiding gutter equally to do identical swings,
Surface in contracting device is smooth, and without any concaveconvex structure, and coal dust is only produced acceleration, fortune by Action of Gravity Field without extra
Dynamic direction is substantially consistent with Impact direction, and therefore, the contracting device is not present coal dust residual, accumulation, leaks phenomena such as coal.
Brief description of the drawings
Fig. 1 is the Sidelong portion schematic diagram of the contracting device of prior art；
The schematic top plan view of the contracting device of Fig. 2 prior arts；
Fig. 3 is the Sidelong portion schematic diagram of swing type contracting device provided by the invention；
Fig. 4 is the lateral incision face schematic diagram of swing type contracting device provided by the invention；
Fig. 5 is the schematic elevation view of eccentric wheel provided by the invention；
Fig. 6 is the lateral incision face schematic diagram of eccentric wheel provided by the invention；
Fig. 7 is the Sidelong portion schematic diagram of guiding gutter provided by the invention；
Fig. 8 is the schematic side view of guiding gutter provided by the invention.
In figure, 1：Installing plate；2：Motor；3：Charging box；4：Guiding gutter；5：Eccentric wheel；6：Connecting shaft；7：Swing
Block；8：First rotating shaft；9：Second rotating shaft；10：Motor cabinet；11：Dispense plate；12：Bearing block；13：Division cavity；14：Belt；
15：Driving pulley；16：Passive belt wheel；17：It is rotated into hopper；18：The bearing collar；19：Deep groove ball bearing；20：Motor is fixed
Plate；21：Reducing motor；22：Division baffle plate；23：Chute under first division；24：Chute under second division；25：Support plate；26：
Upside fagging；27：Downside fagging；51：Mounting hole；52：Connecting hole.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained on the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is to be understood that term " on ", " under ", "left", "right", " interior ", " outer ", " water
It is flat ", the orientation of the instruction such as " vertical " or position relationship is, based on orientation shown in the drawings or position relationship, be for only for ease of and retouch
State the present invention and simplify description, rather than indicate or imply that signified device or element there must be specific orientation, with specific
Azimuth configuration and operation, therefore be not considered as limiting the invention.
As shown in Figure 3 and Figure 4, be a kind of swing type contracting device provided by the invention, including installing plate 1, drive device 2,
Reduction device and charging box 3, installing plate 1 are arranged at the upper end charging aperture of charging box 3；Reduction device includes guiding gutter 4, bias
Wheel 5, connecting shaft 6 and swinging block 7, eccentric wheel 5 are provided with mounting hole 51, mounting hole 51 and the driving axis connection of drive device 2, partially
It is additionally provided with connecting hole 52 on the wheel disc of heart wheel 5, the centre position of swinging block 7 is provided with the slotted hole of vertical direction, and the one of connecting shaft 6
End is fixedly connected with connecting hole 52, and its other end and slotted hole slidable connection, the pair of vertical of guiding gutter 4 are arranged on swinging block 7
Both ends, the opening of every a pair of guiding gutters 4 is relative, the bottom lands of every a pair of guiding gutters simultaneously rotationally with swinging block 7 and
The installing plate 1 connects, and drives guiding gutter 4 to do periodic reverse swing together by swinging block 7, the lower end of guiding gutter 4 extends to
In the inner chamber of charging box 3, the contracting device drives eccentric wheel 5 to rotate by using drive device 2, and eccentric wheel 5 is further through connecting shaft 6
The reciprocally swinging of assemblage zone movable pendulum motion block 7, because swinging block 7 is connected with guiding gutter 4, therefore, guiding gutter 4 similarly does identical pendulum
It is dynamic, when coal dust falls, by the reciprocally swinging of guiding gutter 4, coal dust is entered charging box 3, reach the mesh of the average division of coal dust
's.
Preferably, connecting hole 52 is waist-shaped hole, and one end of waist-shaped hole is gradually distance from the center of circle of mounting hole 51 to the other end, such as
Shown in Fig. 6, mounting hole 51 is preferably placed at the center of eccentric wheel 5, and is provided with annular dome, therefore eccentric wheel in center position
5 center and center of gravity realize the reciprocally swinging of the rotational band movable pendulum motion block 7 of eccentric wheel 5 not in same level；Such as figure
Shown in 5, two waist-shaped holes are preferably provided with eccentric wheel 5, each waist-shaped hole is in vortex-like wire, in order to adjust the band of eccentric wheel 5
The radius that dynamic connecting shaft 6 rotates, and then control the amplitude of fluctuation of guiding gutter 4.
Preferably, one end that connecting shaft 6 is connected with the slotted hole on swinging block 7 is provided with rolling bearing, rolling bearing it is interior
Circle is rotatablely connected with connecting shaft 6, and outer ring and the slotted hole on swinging block 7 of rolling bearing are slidably connected, and rolling bearing is preferably used
Deep groove ball bearing, deep groove ball bearing is relatively conventional, simple in construction, can bear radial load and axial load simultaneously, its system that rubs
Number is smaller, and rotating speed is also higher；Connecting shaft 6 and the inner ring axial locking of deep groove ball bearing are fixed, and the length being inserted on swinging block 7
In circular hole, when eccentric wheel 5 drives connecting shaft 6 to rotate, the other end of connecting shaft 6 slides up and down in slotted hole, so that pendulum
Motion block 7 is swung, and because swinging block 7 is connected with guiding gutter 4, therefore, guiding gutter 4 similarly does identical swings.
The number of guiding gutter 4 is preferably a pair of, is symmetrically arranged at the both ends of swinging block 7, the opening of two guiding gutters 4
Relatively, the number of guiding gutter 4 can also be arranged to multipair according to the coal dust amount of division, will be each when coal dust free-falling
Relative position is arranged to the opening of guiding gutter 4, while when guiding gutter 4 swings, can effective division coal dust, improve effect
Rate, reduce discarded coal dust amount.
Preferably, the bottom land of guiding gutter 4 is provided with the rotating shaft 9 of first rotating shaft 8 and second of horizontal fixed setting, first rotating shaft 8
Located at the upper end of bottom land, the second rotating shaft 9 is arranged on the lower section of first rotating shaft 8, and the both ends of first rotating shaft 8 pass through revolving member and pendulum
Motion block 7 is rotatablely connected, and the both ends of the second rotating shaft 9 are rotatablely connected by revolving member and installing plate 1, as shown in Figure 7 and Figure 8, by
It is oppositely arranged in the opening of two guiding gutters 4, therefore, the level of 8 and second rotating shaft of first rotating shaft 9 is fixedly installed on guiding gutter 4
Bottom land on, and be connected respectively with swinging block 7 and installing plate 1, when swinging block 7 swings in vertical direction, in order to make
Guiding gutter 4 can follow swinging block 7, and in the vertical direction swings together.
Preferably, revolving member is rolling bearing, and rolling bearing is arranged in corresponding bearing block, and rolling bearing is equally excellent
Elect deep groove ball bearing as, the rotating shaft 9 of first rotating shaft 8 and second is all supported using deep groove ball bearing, and installation is reasonable, smooth running, is protected
Card is noiseless when running and without airborne dust, ensures that there is good stability in mechanism.
Preferably, drive device 2 is reducing motor, and reducing motor is fixedly connected by motor cabinet 10 with installing plate 1, is slowed down
The motor shaft of motor is fixedly connected with the mounting hole 51 of eccentric wheel 5, as shown in figure 4, reducing motor is arranged on motor cabinet 10, is led to
Cross screw lock to fix, likewise, motor cabinet 10 is fixedly mounted on the correspondence position of installing plate 1 by screw, by reducing motor
Rotary shaft be inserted into the mounting hole 51 of eccentric wheel 5, after adjustment position, fixed with screw lock, drive reducing motor inclined
Heart wheel 5 rotates, and then drives guiding gutter 4 to swing.
Preferably, packing plate 11 is provided with charging box 3, charging box 3 is divided into multiple cavitys by packing plate 11, and each is empty
The bottom of chamber is provided with discharging opening, as shown in figure 3, charging box 3 divides for three cavitys, the cavity bottom be sequentially provided with look into sample mouth,
Sample mouth and sample leaving opening are abandoned, obtained division coal dust is of substantially equal, and the amount of interception meets randomness and the phase same sex；Charging box 3 it is upper
End is provided with charging aperture, and the wherein drop-off positions of coal dust are between the opening of two guiding gutters 4, in order to the average division of guiding gutter 4
Coal dust.
The operation principle of the present invention：Connecting shaft 6 is fixed on the connecting hole 52 of eccentric wheel 5, reducing motor 5 turns of movable eccentric wheel of band
Dynamic, connecting shaft 6 then moves in a circle around deceleration motor shaft, when eccentric wheel 5 rotates clockwise 90 °, the slotted hole of swinging block 7
Interior connecting shaft 6 is from top slide downward, while swinging block 7 is swung to the right, because swinging block 7 is connected with guiding gutter 4, because
This, swinging block 7 drives guiding gutter 4 to be also tilted to the right, and realizes and swings, and similarly, when swinging block 7 rotates clockwise successively, work is former
Manage same as described above；When falling behind under coal dust, swung by guiding gutter 4, coal dust is entered three cavitys, reach the mesh of division
's；Division coal dust amount into different cavitys can be by adjusting the position of connecting hole 52 of the connecting shaft 6 on eccentric wheel 5 come real
It is existing.
In summary, swing type contracting device provided by the invention, coal dust can be made only by Action of Gravity Field, direction of motion base
This is consistent with Impact direction, and makes the contracting device that coal dust residual, accumulation be not present, leak phenomena such as coal；Because the present invention is with excellent
Elegant combination property, thus can integral protection, make profile more elegant in appearance.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (8)
1. a kind of swing type contracting device, it is characterised in that including installing plate (1), drive device (2), reduction device and charging box
(3), the installing plate (1) is arranged at the upper end charging aperture of the charging box (3)；
The reduction device includes guiding gutter (4), eccentric wheel (5), connecting shaft (6) and swinging block (7), on the eccentric wheel (5)
Provided with mounting hole (51), the mounting hole (51) and the driving axis connection of the drive device (2), the wheel of the eccentric wheel (5)
Connecting hole (52) is additionally provided with disk, the centre position of the swinging block (7) is provided with the slotted hole of vertical direction, the connecting shaft
(6) one end is fixedly connected with the connecting hole (52), its other end and the slotted hole slidable connection, the guiding gutter
(4) pair of vertical is arranged on the both ends of the swinging block (7), and the opening of every a pair of guiding gutters (4) is relative, every a pair of water conservancy diversion
The bottom land of groove is rotationally connected with the swinging block (7) and the installing plate (1) simultaneously, and institute is driven by the swinging block (7)
State guiding gutter (4) and do periodic reverse swing together, the lower end of the guiding gutter (4) extends to the inner chamber of the charging box (3)
In.
2. swing type contracting device according to claim 1, it is characterised in that the connecting hole (52) is waist-shaped hole, described
One end of waist-shaped hole is gradually distance from the center of circle of the mounting hole (51) to the other end.
3. swing type contracting device according to claim 1, it is characterised in that the connecting shaft (6) and the swinging block (7)
On one end of slotted hole connection be provided with rolling bearing, the inner ring of the rolling bearing and the connecting shaft (6) rotation connection, institute
The outer ring and the slotted hole on the swinging block (7) for stating rolling bearing are slidably connected.
4. swing type contracting device according to claim 1, it is characterised in that the bottom land of the guiding gutter (4) is provided with level
The first rotating shaft (8) of fixed setting and the second rotating shaft (9), the first rotating shaft (8) be located at the bottom land upper end, described second
Rotating shaft (9) is arranged on the lower section of the first rotating shaft (8), and the both ends of the first rotating shaft (8) pass through revolving member and the pendulum
Motion block (7) is rotatablely connected, and the both ends of second rotating shaft (9) are rotatablely connected by revolving member and the installing plate (1).
5. swing type contracting device according to claim 4, it is characterised in that the revolving member is rolling bearing, described
Rolling bearing is arranged in corresponding bearing block.
6. swing type contracting device according to claim 1, it is characterised in that the drive device (2) is reducing motor, institute
Reducing motor is stated to be fixedly connected with the installing plate (1) by motor cabinet (10).
7. swing type contracting device according to claim 6, it is characterised in that the motor shaft of the reducing motor with it is described partially
The mounting hole (51) of heart wheel (5) is fixedly connected.
8. swing type contracting device according to claim 1, it is characterised in that packing plate is provided with the charging box (3)
(11), the charging box (3) is divided into multiple cavitys by the packing plate (11), and the bottom of each cavity is provided with discharging
Mouthful.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510695451.6A CN105223056B (en) | 2015-10-23 | 2015-10-23 | A kind of swing type contracting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510695451.6A CN105223056B (en) | 2015-10-23 | 2015-10-23 | A kind of swing type contracting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105223056A CN105223056A (en) | 2016-01-06 |
| CN105223056B true CN105223056B (en) | 2018-01-16 |
Family
ID=54992132
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510695451.6A Active CN105223056B (en) | 2015-10-23 | 2015-10-23 | A kind of swing type contracting device |
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| Country | Link |
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| CN (1) | CN105223056B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404445B (en) * | 2016-09-30 | 2023-07-07 | 湖南万通科技股份有限公司 | Material dividing device |
| CN106969944B (en) * | 2017-04-28 | 2024-03-01 | 湖南三德科技股份有限公司 | Spiral sampling device |
| CN107807010B (en) * | 2017-10-31 | 2020-08-18 | 华刚矿业股份有限公司 | Pipeline sampler |
| CN108375494A (en) * | 2018-04-08 | 2018-08-07 | 中山市宏唯自动化科技有限公司 | A kind of reciprocating swing reduction device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB588766A (en) * | 1944-10-05 | 1947-06-03 | Allever Burton Seaborne | Improved means for automatically sampling coal, grain or like granular materials |
| DE2933291A1 (en) * | 1979-08-17 | 1981-03-26 | Klöckner-Humboldt-Deutz AG, 51063 Köln | Specimen separator for solids and/or liquids - has divider with several adjustable deflectors in circular arrangement on rotary axis for material distribution |
| US4817442A (en) * | 1984-11-07 | 1989-04-04 | Brian Christoperh Coupe | Sample splitter |
| CN104181021A (en) * | 2014-08-26 | 2014-12-03 | 长沙开元仪器股份有限公司 | Diversion-type splitter and splitting method |
| CN205120447U (en) * | 2015-10-23 | 2016-03-30 | 长沙开元仪器股份有限公司 | Oscillating division machine |
-
2015
- 2015-10-23 CN CN201510695451.6A patent/CN105223056B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB588766A (en) * | 1944-10-05 | 1947-06-03 | Allever Burton Seaborne | Improved means for automatically sampling coal, grain or like granular materials |
| DE2933291A1 (en) * | 1979-08-17 | 1981-03-26 | Klöckner-Humboldt-Deutz AG, 51063 Köln | Specimen separator for solids and/or liquids - has divider with several adjustable deflectors in circular arrangement on rotary axis for material distribution |
| US4817442A (en) * | 1984-11-07 | 1989-04-04 | Brian Christoperh Coupe | Sample splitter |
| CN104181021A (en) * | 2014-08-26 | 2014-12-03 | 长沙开元仪器股份有限公司 | Diversion-type splitter and splitting method |
| CN205120447U (en) * | 2015-10-23 | 2016-03-30 | 长沙开元仪器股份有限公司 | Oscillating division machine |
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| Publication number | Publication date |
|---|---|
| CN105223056A (en) | 2016-01-06 |
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Effective date of registration: 20190603 Address after: 410100 Xingsha Industrial Base (Changlong Street), Changsha Economic and Technological Development Zone, Changsha City, Hunan Province, No. 1259, Liangtang East Road Patentee after: Changsha Kaiyuan Instruments Co.,Ltd. Address before: 410100 No. 172 Kaiyuan Road, Changsha economic and Technological Development Zone, Changsha, Hunan Patentee before: CHANGSHA KAIYUAN INSTRUMENTS Co.,Ltd. |
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Denomination of invention: Swing type division machine Effective date of registration: 20200615 Granted publication date: 20180116 Pledgee: Changsha Bank city branch of Limited by Share Ltd. Pledgor: CHANGSHA KAIYUAN INSTRUMENTS Co.,Ltd. Registration number: Y2020980003086 |
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Date of cancellation: 20230717 Granted publication date: 20180116 Pledgee: Changsha Bank city branch of Limited by Share Ltd. Pledgor: Changsha Kaiyuan Instruments Co.,Ltd. Registration number: Y2020980003086 |