CN118926101B - A cemented carbide powder granulation screening machine and screening method - Google Patents
A cemented carbide powder granulation screening machine and screening method Download PDFInfo
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- CN118926101B CN118926101B CN202411425976.3A CN202411425976A CN118926101B CN 118926101 B CN118926101 B CN 118926101B CN 202411425976 A CN202411425976 A CN 202411425976A CN 118926101 B CN118926101 B CN 118926101B
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- 239000000843 powder Substances 0.000 title claims abstract description 126
- 238000012216 screening Methods 0.000 title claims abstract description 122
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000005469 granulation Methods 0.000 title abstract description 5
- 230000003179 granulation Effects 0.000 title abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 49
- 238000009434 installation Methods 0.000 claims abstract description 36
- 238000007664 blowing Methods 0.000 claims abstract description 5
- 239000000956 alloy Substances 0.000 claims description 13
- 229910045601 alloy Inorganic materials 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 11
- 238000003860 storage Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000005453 pelletization Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 238000010009 beating Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/06—Feeding or discharging arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
- B07B4/02—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
本发明提供一种硬质合金粉末制粒筛选机及筛选方法，涉及硬质合金制粒技术领域。该硬质合金粉末制粒筛选机，包括粉末筛选箱体，所述粉末筛选箱体的顶部固定连接有龙门安装架体，所述龙门安装架体的顶部贯穿固定连接有下料连接管道。启动第二伺服电机，使得中空安装管道带着四个接料中转板体旋转，同时启动安装气泵，空气通过第一固定管道进入到旋转进气管道的内部，然后打开对应内置连接管道上的阀门，空气通过透气网板瞬间吹出，使得粉末倾斜吹出，呈抛物线状掉落到筛选过滤网上，粉末吹抛过程中，大颗粒与小颗粒形成的抛物线不同，因此，在粉末掉落到筛选过滤网之前就已经经过了一次初步筛选，保证了后续的高效筛选作业。
The present invention provides a cemented carbide powder granulation screening machine and screening method, and relates to the technical field of cemented carbide granulation. The cemented carbide powder granulation screening machine comprises a powder screening box, the top of which is fixedly connected to a gantry mounting frame, and the top of which is penetrated and fixedly connected to a material discharge connection pipe. The second servo motor is started to rotate the hollow installation pipe with four material receiving transfer plates, and the installation air pump is started at the same time, and the air enters the interior of the rotating air intake pipe through the first fixed pipe, and then the valve on the corresponding built-in connection pipe is opened, and the air is instantly blown out through the air permeable mesh plate, so that the powder is blown out obliquely and falls onto the screening filter net in a parabolic shape. During the powder blowing and throwing process, the parabolas formed by large particles and small particles are different. Therefore, the powder has undergone a preliminary screening before falling onto the screening filter net, ensuring the subsequent efficient screening operation.
Description
Technical Field
The invention relates to the technical field of hard alloy granulation, in particular to a hard alloy powder granulating and screening machine and a screening method.
Background
The hard alloy is a metal ceramic tool material which is prepared by taking refractory metal compounds (WC, taC, tiC, nbC and the like) as a matrix and transition metals (Co, fe and Ni) as a binding phase through a powder metallurgy method, has the advantages of high strength, high hardness, high elastic modulus, wear resistance, corrosion resistance, small thermal expansion coefficient, stable chemical property and the like, and is widely applied to the fields of cutting tools, wear-resistant parts, mining and road construction machinery and the like.
During granulating the hard alloy, firstly, uniformly mixing the powder with the screened granularity, grinding, vacuum drying the mixed and ground raw materials, screening to remove agglomerates, granulating, and carrying out screening operation on the hard alloy before granulating, traditional sieve separator often directly drops into the organism with powder, sieves through the effect of vibration, but this kind of mode often makes large granule powder pile up on the filter screen, causes the jam of filter screen, needs frequent clearance, influences the efficiency of screening.
Disclosure of Invention
(One) solving the technical problems
Aiming at the defects of the prior art, the invention provides a hard alloy powder granulating and screening machine and a screening method, which solve the problems that the traditional screening machine always directly inputs powder into a machine body and screens the powder through the action of vibration, but the mode always causes large-particle powder to be accumulated on a filter screen to cause the blockage of the filter screen, and the screening efficiency is influenced by frequent cleaning.
(II) technical scheme
In order to achieve the purpose, the hard alloy powder granulating and screening machine comprises a powder screening box body, wherein a gantry mounting frame body is fixedly connected to the top of the powder screening box body, a blanking connecting pipeline is fixedly connected to the top of the gantry mounting frame body in a penetrating mode, a storage fixing cylinder body is fixedly connected to the top of the blanking connecting pipeline, a plugging component is arranged on one side of the gantry mounting frame body, a rotary air inlet pipeline is rotatably connected to the rear side of the powder screening box body in a penetrating mode, a driving component for driving the rotary air inlet pipeline to rotate is arranged on the rear side of the powder screening box body, a hollow installation pipeline is fixedly connected to one end of the rotary air inlet pipeline, four medium-rotation plate bodies which are distributed in an annular array are fixedly connected to the outer surface of the hollow installation pipeline, an air permeable screen plate is fixedly embedded in the medium-rotation plate body, a trapezoid guide table is fixedly connected to the inner bottom of the powder screening box body, a first guide table is arranged in the inner side of the trapezoid guide table, two trapezoid guide tables are fixedly connected with a first end of a second guide plate, a first end of the trapezoid guide table is connected with a first end of a second trapezoid rubber guide plate, and a second end of the first end of the trapezoid rubber guide table is fixedly connected with a second end of a sieve, and a first end of the trapezoid rubber guide plate is far away from the first end of the trapezoid rubber guide plate is fixedly connected with a second end of a sieve, and the first end of the trapezoid rubber guide plate is far away from the first end of the trapezoid rubber assembly is fixedly connected with a second end of the second end, and is far away from the second end, and far from the end, and has a second end, and has a lower end, and has and the right.
Preferably, the plugging assembly comprises a reciprocating movable pulling plate penetrating through and arranged on the side wall of the gantry mounting frame body, one end of the reciprocating movable pulling plate is fixedly connected with a closed attaching plate, the upper surface of the closed attaching plate is attached to the bottom end of a blanking connecting pipeline, a feeding hole is formed in the top of the powder screening box body, the blanking connecting pipeline is located above the feeding hole, and one side of the gantry mounting frame body is provided with a power assembly for driving the reciprocating movable pulling plate to reciprocate.
Preferably, the power component comprises a connecting side plate fixedly connected to one side of the gantry mounting frame body, a first servo motor is fixedly connected to the lower surface of the connecting side plate, an output shaft of the first servo motor is fixedly connected with a rotary movable disc, a linkage reciprocating pull rod is rotatably connected to the eccentric position of the lower surface of the rotary movable disc, and one end of the linkage reciprocating pull rod, far away from the rotary movable disc, is rotatably connected with the reciprocating movable pull plate.
Preferably, the driving assembly comprises a second servo motor fixedly connected to the rear side of the powder screening box body, a first belt pulley is fixedly connected to an output shaft of the second servo motor, a second belt pulley is fixedly connected to the outer surface of the rotary air inlet pipeline, and the first belt pulley is connected with the second belt pulley through a first belt in a transmission mode.
Preferably, the blowing assembly comprises an installation air pump fixedly connected to the rear side of the powder screening box body, a second fixed pipeline is fixedly connected to an inlet of the installation air pump, a first fixed pipeline is fixedly connected to an outlet of the installation air pump, one end of the first fixed pipeline, which is far away from the installation air pump, is rotationally connected with one end of the rotary air inlet pipeline, four built-in connecting pipelines which are distributed in an annular array are arranged in the hollow installation pipeline, one end of each built-in connecting pipeline is fixedly connected with the rotary air inlet pipeline, and the other end of each built-in connecting pipeline is communicated with a corresponding material receiving middle rotating plate body, and valves are arranged on the four built-in connecting pipelines.
Preferably, the first knocking assembly comprises a third servo motor arranged inside the trapezoid guide table, an output shaft of the third servo motor is fixedly connected with a second rotary rod body, and the outer surface of the second rotary rod body is fixedly connected with a second knocking rubber block.
Preferably, the second is knocked the subassembly and is including running through the first rotatory body of rod of rotation connection at powder screening box rear side, the surface fixedly connected with of first rotatory body of rod is first to strike the rubber piece, first the rubber piece of knocking is located the inside of powder screening box, the first rotatory body of rod is located the outside one end fixedly connected with third belt pulley of powder screening box, the surface fixedly connected with fourth belt pulley of rotatory intake pipe, third belt pulley passes through the second belt transmission with fourth belt pulley and is connected.
Preferably, a first discharge opening is formed in one side of the bottom of the powder screening box, and a second discharge opening is formed in the other side of the bottom of the powder screening box.
A screening method of a cemented carbide powder granulating and screening machine, the screening method comprising the steps of:
S1, putting powder to be granulated into a storage fixed cylinder, enabling the powder to enter the blanking connecting pipeline through the storage fixed cylinder, then starting a first servo motor, enabling an output shaft of the first servo motor to rotate with a rotating movable disc, pulling a reciprocating movable pull plate to reciprocate through a linkage reciprocating pull rod when the rotating movable disc rotates, enabling the reciprocating movable pull plate to pull a closed attaching plate to move, opening the blanking connecting pipeline when the closed attaching plate is separated from the blanking connecting pipeline, enabling the powder in the blanking connecting pipeline to fall, and enabling the powder to fall onto one surface through a feeding hole to realize intermittent blanking;
S2, starting a second servo motor, wherein an output shaft of the second servo motor rotates with a first belt pulley, a rotary air inlet pipeline rotates with a first belt, a rotary air inlet pipeline rotates with a hollow installation pipeline, the hollow installation pipeline rotates with four material receiving middle rotating plate bodies, an air pump is started to be installed when the material receiving middle rotating plate bodies rotate, air enters the rotary air inlet pipeline through a first fixed pipeline, then a valve corresponding to a built-in connecting pipeline is opened, the built-in connecting pipeline is communicated with a material receiving middle rotating plate body with powder, and the air is instantly blown out through an air permeable screen plate, so that the powder is obliquely blown out and falls onto a screening filter screen in a parabolic shape;
S3, when the rotary air inlet pipeline rotates, the second belt drives the first rotary rod body to rotate, and the first rotary rod body drives the first knocking rubber block to rotate, so that the first knocking rubber block knocks the screening filter screen, and powder screening is quickened;
S4, qualified powder falls to the left side upper side of the trapezoid material guiding table through the screening filter screen, unqualified powder falls to the right side upper side of the trapezoid material guiding table, two third servo motors are started simultaneously, an output shaft of each third servo motor drives a second rotary rod body to rotate, the second rotary rod body drives a second knocking rubber block to rotate, the second knocking rubber block continuously knocks the inside of the trapezoid material guiding table, the trapezoid material guiding table vibrates, and powder is accelerated to be discharged from a first material discharging port and a second material discharging port respectively.
(III) beneficial effects
The invention provides a hard alloy powder granulating and screening machine and a screening method. The beneficial effects are as follows:
1. According to the invention, the second servo motor is started, the output shaft of the second servo motor rotates with the first belt pulley, so that the hollow installation pipeline rotates with the four material receiving middle rotating plates, the installation air pump is started, air enters the rotary air inlet pipeline through the first fixed pipeline, then the valve on the corresponding built-in connection pipeline is opened, the air is instantly blown out through the ventilation screen plate, so that powder is obliquely blown out and falls onto the screening filter screen in a parabolic shape, and in the powder blowing and throwing process, the parabolas formed by large particles and small particles are different, therefore, primary screening is carried out before the powder falls onto the screening filter screen, and the subsequent efficient screening operation is ensured.
2. According to the invention, the first servo motor is started, the output shaft of the first servo motor rotates with the rotary movable disc, and the rotary movable disc is pulled to reciprocate by the linkage reciprocating pull rod when rotating, so that the reciprocating movable pull plate pulls the sealing and attaching plate to move, when the sealing and attaching plate is separated from the blanking connecting pipeline, the blanking connecting pipeline is opened, powder in the blanking connecting pipeline falls off, and the powder falls off to one surface through the feeding hole, so that intermittent blanking is realized, and a large amount of powder is prevented from being accumulated and blockage is not easy to occur.
3. According to the invention, the two third servo motors are started, the output shafts of the third servo motors rotate with the second rotary rod bodies, and the second rotary rod bodies rotate with the second knocking rubber blocks, so that the second knocking rubber blocks continuously knock the inside of the trapezoid material guiding table, the trapezoid material guiding table vibrates, powder is accelerated to be discharged from the first material discharging port and the second material discharging port respectively, qualified powder and unqualified powder are discharged, and accumulation is not easy to occur.
Drawings
Fig. 1 is a schematic view of a first perspective structure of a cemented carbide powder granulating and screening machine provided by the invention;
Fig. 2 is a schematic view of a second perspective structure of a cemented carbide powder granulating and screening machine according to the present invention;
FIG. 3 is a cross-sectional view of a powder screening box of a cemented carbide powder granulating and screening machine provided by the invention;
Fig. 4 is a schematic diagram of the internal structure of a powder screening box of the cemented carbide powder granulating and screening machine provided by the invention;
fig. 5 is a schematic diagram of a hollow installation pipeline of the cemented carbide powder granulating and screening machine provided by the invention;
Fig. 6 is a schematic diagram of a built-in connecting pipeline of the cemented carbide powder granulating and screening machine provided by the invention;
Fig. 7 is an enlarged schematic view of the structure of fig. 2-a of the cemented carbide powder granulating and screening machine according to the present invention.
The powder screening device comprises a powder screening box body, a gantry mounting frame body, a discharging connecting pipeline, a storage fixing cylinder body, a connecting side plate, a first servo motor, a rotary movable disc, a linkage reciprocating pull rod, a reciprocating movable pull plate, a sealing attaching plate, a rotary air inlet pipeline, a hollow mounting pipeline, a material receiving transfer plate body, a 14, an air permeable screen plate, a 15, an air pump, a 16, a first fixing pipeline, a 17, a second servo motor, a 18, a screening filter screen, a 19, a first rubber sheet, a20, a second rubber sheet, a 21, a first rotary rod body, a 22, a first knocking rubber block, a 23, a built-in connecting pipeline, a 24, a second rotary rod body, a 25, a second knocking rubber block, a 26, a trapezoid material guiding table, a 27, a first discharge opening, a 28, a second discharge opening and a 29, and a third servo motor.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples:
as shown in fig. 1-7, an embodiment of the invention provides a hard alloy powder granulating and screening machine, which comprises a powder screening box body 1, wherein a gantry mounting frame body 2 is fixedly connected to the top of the powder screening box body 1, a discharging connecting pipeline 3 is fixedly connected to the top of the gantry mounting frame body 2 in a penetrating manner, a storage fixing cylinder body 4 is fixedly connected to the top of the discharging connecting pipeline 3, a first discharge port 27 is formed in one side of the bottom of the powder screening box body 1, and a second discharge port 28 is formed in the other side of the bottom of the powder screening box body 1;
One side of the gantry mounting frame body 2 is provided with a plugging component, the plugging component comprises a reciprocating movable pulling plate 9 which is penetrated and arranged on the side wall of the gantry mounting frame body 2, one end of the reciprocating movable pulling plate 9 is fixedly connected with a closed joint plate 10, the upper surface of the closed joint plate 10 is attached to the bottom end of a blanking connecting pipeline 3, a feeding hole is formed in the top of the powder screening box body 1, the blanking connecting pipeline 3 is positioned above the feeding hole, one side of the gantry mounting frame body 2 is provided with a power component for driving the reciprocating movable pulling plate 9 to reciprocate, the power component comprises a connecting side plate 5 which is fixedly connected to one side of the gantry mounting frame body 2, the lower surface of the connecting side plate 5 is fixedly connected with a first servo motor 6, an output shaft of the first servo motor 6 is fixedly connected with a rotary movable disc 7, the eccentric position of the lower surface of the rotary movable disc 7 is rotationally connected with a linkage reciprocating pulling rod 8, one end of the linkage reciprocating pulling rod 8 far away from the rotary movable disc 7 is rotationally connected with the reciprocating movable pulling plate 9, the first servo motor 6 is started, the output shaft of the first servo motor 6 rotates along the rotary movable disc 7, when the rotary movable disc 7 rotates, the reciprocating movable disc 7 falls off the reciprocating movable pulling plate 9 through the reciprocating movable pulling plate 9, and makes the reciprocating movable pulling plate 3 move along the reciprocating movable pulling plate 3 and falls down the reciprocating movable connecting pipeline 3 when the reciprocating movable pulling plate is closed, and falls down the reciprocating movable connecting plate 3, and is closed, when the reciprocating movable plate 3 falls down the reciprocating connecting plate 3 is attached to the reciprocating pipeline, and is closed;
The rear side of the powder screening box body 1 is connected with a rotary air inlet pipeline 11 in a penetrating and rotating mode, a driving assembly for driving the rotary air inlet pipeline 11 to rotate is arranged at the rear side of the powder screening box body 1, the driving assembly comprises a second servo motor 17 fixedly connected to the rear side of the powder screening box body 1, an output shaft of the second servo motor 17 is fixedly connected with a first belt pulley, the outer surface of the rotary air inlet pipeline 11 is fixedly connected with a second belt pulley, the first belt pulley is in transmission connection with the second belt pulley through a first belt, the second servo motor 17 is started, an output shaft of the second servo motor 17 rotates with the first belt pulley, the rotary air inlet pipeline 11 rotates with a hollow installation pipeline 12 through the first belt, and the hollow installation pipeline 12 rotates with four material receiving transfer plate bodies 13;
The rotary air inlet pipeline 11 is fixedly connected with a hollow installation pipeline 12 at one end inside the powder screening box body 1, the outer surface of the hollow installation pipeline 12 is fixedly connected with four material receiving transfer plate bodies 13 which are distributed in an annular array, the material receiving transfer plate bodies 13 are arranged in a hollow mode, an air permeable net plate 14 is fixedly embedded in the surface of each material receiving transfer plate body 13, an air blowing component connected with the rotary air inlet pipeline 11 is arranged at the rear side of the powder screening box body 1 and comprises an installation air pump 15 fixedly connected at the rear side of the powder screening box body 1, the inlet of the installation air pump 15 is fixedly connected with a second fixed pipeline, the outlet of the installation air pump 15 is fixedly connected with a first fixed pipeline 16, one end of the first fixed pipeline 16 away from the installation air pump 15 is rotationally connected with one end of the rotary air inlet pipeline 11, four built-in connecting pipelines 23 which are distributed in an annular array are arranged in the hollow installation pipeline 12, one end of each built-in connecting pipeline 23 is fixedly connected with the rotary air inlet pipeline 11, the other end of each built-in connecting pipeline 23 is communicated with the corresponding material receiving middle rotating plate body 13, valves are arranged on the four built-in connecting pipelines 23, the installation air pump 15 is started, air enters the rotary air inlet pipeline 11 through the first fixed pipeline 16, then the valves on the corresponding built-in connecting pipelines 23 are opened, the built-in connecting pipelines 23 are communicated with the material receiving middle rotating plate body 13 with powder, and the air is instantly blown out through the air permeable net plate 14, so that the powder is obliquely blown out and falls onto the screening filter screen 18 in a parabolic shape;
The inner bottom of the powder screening box body 1 is fixedly connected with a trapezoid guide table 26, two groups of first knocking components are arranged inside the trapezoid guide table 26, the first knocking components comprise a third servo motor 29 arranged inside the trapezoid guide table 26, an output shaft of the third servo motor 29 is fixedly connected with a second rotary rod body 24, the outer surface of the second rotary rod body 24 is fixedly connected with a second knocking rubber block 25, the two third servo motors 29 are started, the output shaft of the third servo motor 29 rotates with the second rotary rod body 24, the second rotary rod body 24 rotates with the second knocking rubber block 25, and the second knocking rubber block 25 continuously knocks inside the trapezoid guide table 26, so that the trapezoid guide table 26 vibrates;
The top fixedly connected with second rubber sheet 20 of trapezoidal guide platform 26, the one end fixedly connected with screening filter screen 18 of trapezoidal guide platform 26 is kept away from to second rubber sheet 20, the one end fixedly connected with first rubber sheet 19 of screening filter screen 18 is kept away from to second rubber sheet 20, the one end that screening filter screen 18 was kept away from to first rubber sheet 19 and the interior top fixedly connected with of powder screening box 1, the second subassembly of beating with screening filter screen 18 looks adaptation is installed to the rear side of powder screening box 1, the second subassembly of beating is including running through the first rotatory body of rod 21 of swivelling joint at powder screening box 1 rear side, the surface fixedly connected with first beating rubber piece 22 of first rotatory body of rod 21, first beating rubber piece 22 is located the inside of powder screening box 1, the one end fixedly connected with third belt pulley of first rotatory body of rod 21 is located the outside of powder screening box 1, the surface fixedly connected with fourth belt pulley of rotatory intake pipe 11, third belt pulley and fourth belt pulley pass through the second belt drive connection, the second belt is rotatory with first rotatory body of rod 21, first rotatory body of rod 21 is with first beating rubber piece 22, make first beating rubber piece 22 to beat the powder screening filter screen 18.
A screening method of a cemented carbide powder granulating and screening machine, the screening method comprising the steps of:
S1, putting powder to be granulated into a storage fixed cylinder 4, enabling the powder to enter the blanking connecting pipeline 3 through the storage fixed cylinder 4, then starting a first servo motor 6, enabling an output shaft of the first servo motor 6 to rotate with a rotary movable disc 7, pulling a reciprocating movable pull plate 9 to reciprocate through a linkage reciprocating pull rod 8 when the rotary movable disc 7 rotates, enabling the reciprocating movable pull plate 9 to pull a closed attaching plate 10 to move, opening the blanking connecting pipeline 3 when the closed attaching plate 10 is separated from the blanking connecting pipeline 3, enabling the powder in the blanking connecting pipeline 3 to fall, and enabling the powder to fall onto one surface through a feed inlet to realize intermittent blanking;
s2, starting a second servo motor 17, enabling an output shaft of the second servo motor 17 to rotate with a first belt pulley, enabling the output shaft to rotate with a rotary air inlet pipeline 11 through a first belt, enabling the rotary air inlet pipeline 11 to rotate with a hollow installation pipeline 12, enabling the hollow installation pipeline 12 to rotate with four material receiving middle rotating plate bodies 13, enabling an installation air pump 15 to be started when the material receiving middle rotating plate bodies 13 rotate, enabling air to enter the rotary air inlet pipeline 11 through a first fixed pipeline 16, opening a valve on a corresponding built-in connecting pipeline 23, enabling the built-in connecting pipeline 23 to be communicated with the material receiving middle rotating plate bodies 13 with powder, enabling the air to be blown out instantly through an air permeable screen 14, enabling the powder to be blown out obliquely and to fall onto a screening filter screen 18 in a parabolic shape;
s3, when the rotary air inlet pipeline 11 rotates, the second belt drives the first rotary rod body 21 to rotate, and the first rotary rod body 21 drives the first knocking rubber block 22 to rotate, so that the first knocking rubber block 22 knocks the screening filter screen 18, and powder screening is quickened;
S4, qualified powder falls to the upper left side of the trapezoid material guiding table 26 through the screening filter screen 18, unqualified powder falls to the upper right side of the trapezoid material guiding table 26, two third servo motors 29 are started simultaneously, the output shafts of the third servo motors 29 rotate with the second rotary rod bodies 24, the second rotary rod bodies 24 rotate with the second knocking rubber blocks 25, the second knocking rubber blocks 25 continuously knock the inside of the trapezoid material guiding table 26, the trapezoid material guiding table 26 vibrates, and powder is accelerated to be discharged from the first material discharging holes 27 and the second material discharging holes 28 respectively.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a carbide powder pelletization sieve separator, includes powder screening box (1), its characterized in that, the top fixedly connected with longmen mounting bracket body (2) of powder screening box (1), the top fixedly connected with unloading connecting tube (3) of longmen mounting bracket body (2), the top fixedly connected with storage fixed cylinder (4) of unloading connecting tube (3), one side of longmen mounting bracket body (2) is provided with shutoff subassembly, the rear side of powder screening box (1) runs through and rotates and be connected with rotatory intake duct (11), rotatory intake duct (11) drive assembly is installed to the rear side of powder screening box (1), rotatory intake duct (11) are located the inside one end fixedly connected with cavity installation pipeline (12) of powder screening box (1), the surface fixedly connected with four and is annular array arrangement's material transfer plate body (13) that connect, the surface fixation of material transfer plate body (13) is equipped with shutoff subassembly, the drive assembly of inserting is installed to the rear side of powder screening box (1) is installed to the drive assembly of rotatory intake duct (11), the inside two trapezoidal components of leading in the inside of a group of powder screening box (1) are connected with the fixed station (26), the top of the trapezoid guide table (26) is fixedly connected with a second rubber sheet (20), one end, away from the trapezoid guide table (26), of the second rubber sheet (20) is fixedly connected with a screening filter screen (18), one end, away from the second rubber sheet (20), of the screening filter screen (18) is fixedly connected with a first rubber sheet (19), one end, away from the screening filter screen (18), of the first rubber sheet (19) is fixedly connected with the inner top of the powder screening box body (1), and a second knocking assembly matched with the screening filter screen (18) is installed on the rear side of the powder screening box body (1);
The plugging assembly comprises a reciprocating movable pulling plate (9) which is penetrated and arranged on the side wall of the gantry mounting frame body (2), one end of the reciprocating movable pulling plate (9) is fixedly connected with a sealing attaching plate (10), the upper surface of the sealing attaching plate (10) is attached to the bottom end of the blanking connecting pipeline (3), a feeding hole is formed in the top of the powder screening box body (1), the blanking connecting pipeline (3) is positioned above the feeding hole, and one side of the gantry mounting frame body (2) is provided with a power assembly for driving the reciprocating movable pulling plate (9) to reciprocate;
The power assembly comprises a connecting side plate (5) fixedly connected to one side of the gantry mounting frame body (2), a first servo motor (6) is fixedly connected to the lower surface of the connecting side plate (5), a rotary movable disc (7) is fixedly connected to an output shaft of the first servo motor (6), a linkage reciprocating pull rod (8) is rotatably connected to the eccentric position of the lower surface of the rotary movable disc (7), and one end, far away from the rotary movable disc (7), of the linkage reciprocating pull rod (8) is rotatably connected with a reciprocating movable pull plate (9);
the driving assembly comprises a second servo motor (17) fixedly connected to the rear side of the powder screening box body (1), a first belt pulley is fixedly connected to an output shaft of the second servo motor (17), a second belt pulley is fixedly connected to the outer surface of the rotary air inlet pipeline (11), and the first belt pulley is in transmission connection with the second belt pulley through a first belt;
The air blowing assembly comprises an installation air pump (15) fixedly connected to the rear side of the powder screening box body (1), a second fixed pipeline is fixedly connected to an inlet of the installation air pump (15), a first fixed pipeline (16) is fixedly connected to an outlet of the installation air pump (15), one end of the first fixed pipeline (16), far away from the installation air pump (15), is rotatably connected with one end of the rotary air inlet pipeline (11), four built-in connecting pipelines (23) which are distributed in an annular array are arranged in the hollow installation pipeline (12), one end of each built-in connecting pipeline (23) is fixedly connected with the corresponding rotary air inlet pipeline (11), and the other end of each built-in connecting pipeline (23) is communicated with the corresponding material receiving transfer plate body (13), and valves are arranged on the four built-in connecting pipelines (23).
2. The hard alloy powder granulating and screening machine according to claim 1, wherein the first knocking component comprises a third servo motor (29) arranged inside a trapezoid material guiding table (26), an output shaft of the third servo motor (29) is fixedly connected with a second rotary rod body (24), and the outer surface of the second rotary rod body (24) is fixedly connected with a second knocking rubber block (25).
3. The hard alloy powder granulating and screening machine according to claim 2, wherein the second knocking component comprises a first rotating rod body (21) which is connected to the rear side of the powder screening box body (1) in a penetrating and rotating mode, a first knocking rubber block (22) is fixedly connected to the outer surface of the first rotating rod body (21), the first knocking rubber block (22) is located in the powder screening box body (1), a third belt pulley is fixedly connected to one end of the first rotating rod body (21) located outside the powder screening box body (1), a fourth belt pulley is fixedly connected to the outer surface of the rotating air inlet pipeline (11), and the third belt pulley is connected with the fourth belt pulley in a transmission mode through a second belt.
4. A cemented carbide powder granulating and screening machine according to claim 3, characterized in that a first discharge opening (27) is arranged on one side of the bottom of the powder screening box (1), and a second discharge opening (28) is arranged on the other side of the bottom of the powder screening box (1).
5. The screening method of the hard alloy powder granulating and screening machine, which is characterized by comprising the following steps of: the screening method comprises the following steps:
S1, throwing powder to be granulated into a storage fixed cylinder (4), enabling the powder to enter a blanking connecting pipeline (3) through the storage fixed cylinder (4), then starting a first servo motor (6), enabling an output shaft of the first servo motor (6) to rotate with a rotating movable disc (7), pulling a reciprocating movable pull plate (9) to reciprocate through a linkage reciprocating pull rod (8) when the rotating movable disc (7) rotates, enabling the reciprocating movable pull plate (9) to pull a sealing attaching plate (10) to move, opening the blanking connecting pipeline (3) when the sealing attaching plate (10) is separated from the blanking connecting pipeline (3), enabling the powder in the blanking connecting pipeline (3) to drop, and enabling the powder to drop to the surface of one of the material receiving middle rotating plate bodies (13) through a feed inlet, so that intermittent blanking is achieved;
S2, starting a second servo motor (17), enabling an output shaft of the second servo motor (17) to rotate with a first belt pulley, enabling the output shaft to rotate with a rotary air inlet pipeline (11) through the first belt, enabling the rotary air inlet pipeline (11) to rotate with a hollow installation pipeline (12), enabling the hollow installation pipeline (12) to rotate with four material receiving middle rotating plate bodies (13), enabling an installation air pump (15) to enter the rotary air inlet pipeline (11) through a first fixed pipeline (16) while the material receiving middle rotating plate bodies (13) rotate, opening a valve on a corresponding built-in connection pipeline (23), enabling the built-in connection pipeline (23) to be communicated with the material receiving middle rotating plate bodies (13) with powder, and enabling the powder to be blown out in an inclined manner through an air permeable screen (14) so as to fall onto a screening filter screen (18) in a parabolic manner;
S3, when the rotary air inlet pipeline (11) rotates, the first rotary rod body (21) is driven to rotate through the second belt, and the first rotary rod body (21) is driven to rotate through the first knocking rubber block (22), so that the first knocking rubber block (22) knocks the screening filter screen (18) to accelerate powder screening;
s4, qualified powder falls to the left side upper side of the trapezoid material guiding table (26) through the screening filter screen (18), unqualified powder falls to the right side upper side of the trapezoid material guiding table (26), two third servo motors (29) are started simultaneously, an output shaft of each third servo motor (29) rotates with a second rotary rod body (24), the second rotary rod body (24) rotates with a second knocking rubber block (25), the second knocking rubber block (25) continuously knocks the inside of the trapezoid material guiding table (26), the trapezoid material guiding table (26) vibrates, and powder is accelerated to be discharged from a first material discharging port (27) and a second material discharging port (28) respectively.
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