CN107971496B - Uniform distribution device capable of accurately adjusting powder thickness - Google Patents
Uniform distribution device capable of accurately adjusting powder thickness Download PDFInfo
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- CN107971496B CN107971496B CN201711445347.7A CN201711445347A CN107971496B CN 107971496 B CN107971496 B CN 107971496B CN 201711445347 A CN201711445347 A CN 201711445347A CN 107971496 B CN107971496 B CN 107971496B
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- plate
- clamping plate
- sliding block
- scraper
- bottom edge
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- 239000000843 powder Substances 0.000 title claims abstract description 36
- 238000009827 uniform distribution Methods 0.000 title claims abstract description 14
- 238000007790 scraping Methods 0.000 claims abstract description 30
- 239000000758 substrate Substances 0.000 abstract description 8
- 238000002474 experimental method Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 17
- 238000012360 testing method Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 239000002131 composite material Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000009703 powder rolling Methods 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 244000089409 Erythrina poeppigiana Species 0.000 description 1
- 235000009776 Rathbunia alamosensis Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/18—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by using pressure rollers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention relates to a uniform distribution device capable of accurately adjusting powder thickness. The device comprises a handle, a scraping plate, an upper clamping plate, a left end plate, a spring, a lower clamping plate, a right end plate, a sliding block, a scraping knife, a rear cover plate, an adjusting bolt and a locking bolt; the handle is fixedly connected to the top of the upper clamping plate, and the upper clamping plate and the lower clamping plate are fixedly connected between the rear cover plate and the scraping plate in an inclined alpha degree relative to the bottom edge of the scraping plate; the left end plate and the right end plate are fixedly connected with the left end and the right end of the upper clamping plate and the lower clamping plate, the sliding block is arranged between the upper clamping plate and the lower clamping plate, the spring is arranged between the left end plate and the sliding block, the adjusting bolt is arranged on the right end plate, and the tail part of the bolt is propped against the right side of the sliding block; the scraper is fixedly connected in front of the sliding block, and the scraper is driven to lift by rotating the adjusting bolt, so that the distance between the bottom edge of the scraper and the bottom edge of the scraper is accurately adjusted. The invention has reasonable design, compact structure, simplicity and practicability. The powder is uniformly spread on the substrate with accurate thickness, so that accurate data can be obtained through experiments.
Description
Technical Field
The invention relates to a distributing device for metal powder cold and hot rolling slab and composite slab experiments, in particular to a uniform distributing device capable of accurately adjusting powder thickness.
Background
The metal powder rolling process is to take metal or alloy powder as raw material, uniformly arrange the metal or alloy powder on a substrate, manually or automatically feed the metal or alloy powder into a rolling mill, directly roll a very thin green plate blank or a composite plate blank, then sinter the green plate blank, roll the green plate blank for the second time and heat treat the green plate blank, and finally prepare the metal plate or the composite plate with pores or compactness.
In 2014, "research on metal powder rolled strip technology" is listed as a great technological project of saddle steel group company, the research and development of metal powder rolling and sintering densification technology is an important subject of the project, and the construction of a set of pilot production equipment is an important subject of the project. In the process of researching and testing metal powder rolled strip technology, uniform distribution is one of the experimental difficulties, because a special distribution device is not provided, a certain amount of metal powder can only be poured on a substrate, the powder is manually spread by a thin steel plate and is sent into a powder rolling mill for rolling, and because the powder is spread unevenly, the surface of a rolled green body is extremely uneven, the density is uneven and even the situation of fracture occurs, so that experimental data cannot be acquired. Therefore, the uniform distribution device capable of accurately adjusting the thickness of the powder is a necessary premise for obtaining accurate experimental data.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a uniform distribution device capable of accurately adjusting the thickness of powder. The powder is uniformly spread on the substrate with accurate thickness, so that accurate data can be obtained through experiments.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
a uniform distributing device capable of accurately adjusting powder thickness comprises a handle, a scraping plate, an upper clamping plate, a left end plate, a spring, a lower clamping plate, a right end plate, a sliding block, a scraping knife, a rear cover plate, an adjusting bolt and a locking bolt; the handle is fixedly connected to the top of the upper clamping plate, and the upper clamping plate and the lower clamping plate are fixedly connected between the rear cover plate and the scraping plate in an inclined alpha degree relative to the bottom edge of the scraping plate; the left end plate and the right end plate are fixedly connected with the left end and the right end of the upper clamping plate and the lower clamping plate, the sliding block is arranged between the upper clamping plate and the lower clamping plate, the spring is arranged between the left end plate and the sliding block, the adjusting bolt is arranged on the right end plate, and the tail part of the bolt is propped against the right side of the sliding block; the scraper is fixedly connected in front of the sliding block, and the scraper is driven to lift by rotating the adjusting bolt, so that the distance between the bottom edge of the scraper and the bottom edge of the scraper is accurately adjusted.
The locking bolt is arranged on the upper clamping plate, and the tail part of the bolt abuts against the upper surface of the sliding block.
The scraping plate is provided with a groove hole, and the included angle between the axis of the groove hole and the bottom edge is alpha degrees and equal to the inclination angle of the upper clamping plate and the lower clamping plate relative to the bottom edge of the scraping plate. The bottom of the groove-shaped hole is provided with a first scale.
The first scale is provided with n small lattices, sinalpha=1/n, and n is more than or equal to 2.
The right end plate is used for installing the screw hole department of adjusting bolt and is equipped with the second scale.
The second scale is provided with m small lattices, and the angle of each lattice is equal to 360 degrees/m, and m is more than or equal to 2.
Compared with the prior art, the method has the beneficial effects that:
the height of the bottom edge (window) of the scraper is raised by utilizing the principle that the bolt rotates to push the sliding block to slide on the inclined plane, the window is accurate, and the scraper can be used by adjusting any height for multiple times, so that the thickness of metal powder is uniform, the rolling test effect is obviously improved, the height of the window can be adjusted at will, test data is greatly enriched, and the reliability of the data is improved; the manual operation is convenient, simple and safe, the test preparation time is greatly saved, the working efficiency is improved, the equipment cost is extremely low, and the maintenance cost is hardly generated;
according to the included angle formed by the sliding block and the bottom edge of the scraping plate and the screw pitch of the adjusting bolt, the scale value is determined, so that the accurate reading precision can reach 0.05mm, and the precision requirement of the powder spreading thickness of the test is completely met; after multiple times of adjustment, the numerical value is still accurate and reliable, and the adjustment and the use are convenient;
on the basis of the existing test model, uniform material distribution equipment capable of accurately adjusting the thickness of powder can be developed in the production line of the powder rolling composite board, and the automation degree of the production line is improved.
Drawings
FIG. 1 is a schematic perspective view of a doctor blade of the invention in an initial position;
FIG. 2 is a schematic front view of the doctor blade of the invention in an initial position;
FIG. 3 is a schematic rear view of the doctor blade of the invention in an initial position;
FIG. 4 is a schematic rear view of the doctor blade lift adjustment process of the invention;
FIG. 5 is a first scale schematic of the present invention;
FIG. 6 is a second scale schematic of the present invention;
fig. 7 is a schematic diagram of the uniform distribution process of the present invention.
In the figure: 1-handle 2-scraping plate 3-upper clamping plate 4-left end plate 5-spring 6-lower clamping plate 7-right end plate 8-sliding block 9-scraping knife 10-rear cover plate 11-locking bolt 12-adjusting bolt 13-screw 14-first scale 15-second scale 16-first pointer 17-second pointer 18-scraping plate bottom edge 19-scraping knife bottom edge 20-cloth thickness 21-substrate 22-powder 23-groove 24-groove hole 25-opening
Description of the embodiments
The following detailed description of the invention is further illustrative, but is not intended to limit the scope of the invention:
as shown in fig. 1, the uniform distribution device capable of accurately adjusting the thickness of powder comprises a handle 1, a scraping plate 2, an upper clamping plate 3, a left end plate 4, a spring 5, a lower clamping plate 6, a right end plate 7, a sliding block 8, a scraping knife 9, a rear cover plate 10, a locking bolt 11 and an adjusting bolt 12.
The scraper blade 2 is right-angle trapezoidal plate structure, and the bottom chamfer forms scraper blade base 19, and the scraper blade base 19 middle part is equipped with opening 25. The upper part of the scraping plate 2 is provided with a groove-shaped hole 24, the included angle between the axis of the groove-shaped hole 24 and the scraping plate bottom edge 19 is alpha degrees, which is equal to the inclined angle of the upper clamping plate 3 and the lower clamping plate 6 relative to the scraping plate bottom edge 18, and the bottom of the groove-shaped hole 24 is provided with a first scale 14.
The first scale 14 is provided with n cells, sinα=1/n, n+.2. The threaded hole of the right end plate 7 for mounting the locking bolt 11 is provided with a second scale 15. The second scale 15 of the right end plate 7 is provided with m small lattices, and the angle of each lattice is equal to 360 degrees/m, and m is more than or equal to 2. The scraper blade 2 is equipped with 2 bolt holes that are used for installing splint 3 in back shroud 10 upper portion, and the lower part all is equipped with 2 bolt holes that are used for installing splint 6, and 2 bolt hole center lines are alpha with scraper blade base 19 contained angle.
As shown in fig. 1, 2 and 3, the assembly process of the present invention specifically includes the following steps:
(1) The upper clamping plate 3 and the lower clamping plate 6 are arranged in parallel. The left end plate 4 and the right end plate 7 are arranged at the left end and the right end of the upper clamping plate 3 and the lower clamping plate 6 through screws to form empty slots.
(2) The scraper 9 is fixed in front of the sliding block 8 through a screw 13, the sliding block 8 is placed between the upper clamping plate 3 and the lower clamping plate 6, the spring 5 is arranged between the left end plate 4 and the sliding block 8, the sliding block 8 can slide in the groove, and elastic resetting is achieved through the spring 5. The groove 23 of the lower clamping plate 6 can avoid the running position of the scraper 9.
(3) After the above parts are assembled, the upper clamp plate 3 and the lower clamp plate 6 are mounted between the rear cover plate 10 and the scraper 2 by bolts. The upper clamping plate 3 and the lower clamping plate 6 are inclined by alpha deg. relative to the bottom edge of the scraper.
(4) The initial position is as follows: the first pointer 16 on the sliding block 8 just indicates 0 position of the first scale 14 on the scraper 2, the scraper bottom edge 19 (N surface) and the scraper bottom edge 18 (M surface) just coincide, the included angle between the running direction of the sliding block 8 and the N surface of the scraper 9 and the M surface of the scraper 2 is a DEG, and sina=1/4.
(5) The locking bolt 11 and the adjusting bolt 12 are respectively screwed into threaded holes of the upper clamping plate 3 and the right end plate 7 and just contact with the sliding block 8, at the moment, the second pointer 17 on the adjusting bolt 12 just points to the 0 position of the second scale 15 on the right end plate, and the handle 1 is welded on the top of the upper clamping plate 3.
The working process and the working principle of the invention are as follows:
(1) As shown in fig. 4, 5 and 6, the adjusting bolt 12 is rotated clockwise, the pitch p=1mm of the adjusting bolt 12, the external thread is guided down by the internal thread of the right end plate 7, and the slider 8 is pushed to move along the sliding groove between the upper and lower clamping plates 3 and 6, and at the same time, the slider 8 compresses the spring 5. Each time the adjusting bolt 12 rotates once, the length direction moves by one pitch P, i.e., 1mm. Along with the movement of the sliding block 8, after the window between the N face of the scraper 9 and the M face of the scraper 2 is pulled by a height H, the locking bolt 11 is rotated clockwise, the external thread of the locking bolt 11 is guided downwards by the internal thread of the upper clamping plate 3, and the sliding block 8 is pressed, so that the movement is prevented. H value = first scale 14 reading + second scale 15 reading. The first scale 14 of fig. 5 has a large cell width of 4mm, a corresponding window height of 1mm, 4 small cells between two large cells, a small cell width of 1mm, a corresponding window height of 0.25mm, and a reading the small cell, and the current reading is 2.25mm. The second scale of FIG. 6 is 15 halves 5 cells a week, each cell representing 0.05mm, 0.25mm a week, with a current reading of 0.1mm; window height h=2.25+0.1=2.35 mm.
(2) As shown in fig. 7, metal powder 20 having a thickness of more than 2.35mm is spread on a substrate 21. The metal powder 20 in the initial state has uneven upper surface and uneven thickness, and is not suitable for rolling the composite plate. The uniform distribution device with the adjusted height is scraped from one side of the metal powder 20 to the other side, the uniform distribution device is kept vertical to the substrate 21 in the process, the M surface of the scraping plate 2 is contacted with the substrate 21, the N surface of the scraping plate 9 is used for scraping the upper surface of the metal powder 20, and the scraped metal powder 20 is uniform and consistent in thickness.
(3) The locking bolt 11 is rotated anticlockwise, the adjusting bolt 12 is rotated anticlockwise, the sliding block 8 is reset under the action of the elastic force of the compression spring 5, all scales are zeroed, the N face of the scraper 9 is just overlapped with the M face of the scraper 2, and the window height H is zeroed.
The invention has reasonable design, compact structure, simplicity and practicability. The height of the scraper window is raised by utilizing the principle that the bolt rotates to push the sliding block to slide on the inclined plane, the window is accurate, and the scraper window can be used by adjusting any height for multiple times, so that the thickness of the metal powder 20 is uniform, the rolling test effect is obviously improved, the height of the window can be adjusted at will, test data is greatly enriched, and the reliability of the data is improved. The manual operation is convenient, simple and safe, the test preparation time is greatly saved, the working efficiency is improved, the equipment cost is extremely low, and the maintenance cost is hardly generated. The scale value is determined according to the included angle formed by the sliding block 8 and the scraper bottom edge 18 and the pitch of the adjusting bolt 12, so that the accurate reading precision can reach 0.05mm, and the precision requirement of the powder spreading thickness of the test is completely met. And after multiple times of adjustment, the numerical value is still accurate and reliable, and the adjustment and the use are convenient. On the basis of the existing test model, uniform material distribution equipment capable of accurately adjusting the thickness of powder can be developed in the production line of the powder rolling composite board, and the automation degree of the production line is improved.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (4)
1. A uniform distribution device capable of accurately adjusting powder thickness, which is characterized in that: the device comprises a handle, a scraping plate, an upper clamping plate, a left end plate, a spring, a lower clamping plate, a right end plate, a sliding block, a scraping knife, a rear cover plate, an adjusting bolt and a locking bolt;
the handle is fixedly connected to the top of the upper clamping plate, the upper clamping plate and the lower clamping plate incline by alpha degrees relative to the bottom edge of the scraping plate, and the handle is fixedly connected between the rear cover plate and the scraping plate; the left end plate and the right end plate are fixedly connected with the left end and the right end of the upper clamping plate and the lower clamping plate, the sliding block is arranged between the upper clamping plate and the lower clamping plate, the spring is arranged between the left end plate and the sliding block, the adjusting bolt is arranged on the right end plate, and the tail part of the adjusting bolt is propped against the right side of the sliding block;
the scraper is fixedly connected in front of the sliding block,
the upper part of the scraping plate is provided with a groove-shaped hole, the included angle between the axis of the groove-shaped hole and the bottom edge of the scraping plate is alpha degrees, the included angle is equal to the inclination angle of the upper clamping plate and the lower clamping plate relative to the bottom edge of the scraping plate, and the bottom of the groove-shaped hole is provided with a first scale;
the right end plate is provided with a second scale at a threaded hole for installing an adjusting bolt;
the adjusting bolt is rotated to drive the scraper to lift, so that the powder thickness is accurately adjusted by accurately adjusting the heights of the bottom edge of the scraper and the bottom edge of the scraper;
the height of the blade bottom edge relative to the blade bottom edge is equal to the reading of the first scale plus the reading of the second scale.
2. The uniform distribution device capable of accurately adjusting the thickness of powder according to claim 1, wherein: the locking bolt is arranged on the upper clamping plate, and the tail part of the locking bolt abuts against the upper surface of the sliding block.
3. The uniform distribution device capable of accurately adjusting the thickness of powder according to claim 1, wherein: the first scale is provided with n small lattices, sinalpha=1/n, and n is more than or equal to 2.
4. The uniform distribution device capable of accurately adjusting the thickness of powder according to claim 1, wherein: the second scale is provided with m small lattices, and the angle of each lattice is equal to 360 degrees/m, and m is more than or equal to 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711445347.7A CN107971496B (en) | 2017-12-27 | 2017-12-27 | Uniform distribution device capable of accurately adjusting powder thickness |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711445347.7A CN107971496B (en) | 2017-12-27 | 2017-12-27 | Uniform distribution device capable of accurately adjusting powder thickness |
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| Publication Number | Publication Date |
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| CN107971496A CN107971496A (en) | 2018-05-01 |
| CN107971496B true CN107971496B (en) | 2023-06-16 |
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| CN201711445347.7A Active CN107971496B (en) | 2017-12-27 | 2017-12-27 | Uniform distribution device capable of accurately adjusting powder thickness |
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| CN204700308U (en) * | 2015-05-08 | 2015-10-14 | 硕威三维打印科技（上海）有限公司 | A kind of have the laser powder sinter molding machine scraping powder function |
| CN105397089A (en) * | 2015-12-17 | 2016-03-16 | 北京易加三维科技有限公司 | Vertical force floating powder laying scraper device for metal additive manufacturing |
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Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2802128B1 (en) * | 1999-12-10 | 2002-02-08 | Ecole Nale Sup Artes Metiers | DEVICE FOR DEPOSITING THIN LAYERS OF POWDER OR POWDER MATERIAL AND METHOD THEREOF |
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2017
- 2017-12-27 CN CN201711445347.7A patent/CN107971496B/en active Active
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Effective date of registration: 20240623 Address after: 114000 a, Jianguo East Road, Lishan District, Anshan City, Liaoning Province Patentee after: Anshan Iron and steel heavy machinery design and Research Institute Co.,Ltd. Country or region after: China Address before: 114000 a, Jianguo East Road, Lishan District, Anshan City, Liaoning Province Patentee before: ANGANG HEAVY MACHINERY Co.,Ltd. Country or region before: China |