CN114526798B - Powder weighing mechanism and one-die multi-piece magnetic field press - Google Patents
Powder weighing mechanism and one-die multi-piece magnetic field press Download PDFInfo
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- CN114526798B CN114526798B CN202210280393.0A CN202210280393A CN114526798B CN 114526798 B CN114526798 B CN 114526798B CN 202210280393 A CN202210280393 A CN 202210280393A CN 114526798 B CN114526798 B CN 114526798B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G13/00—Weighing apparatus with automatic feed or discharge for weighing-out batches of material
- G01G13/02—Means for automatically loading weigh pans or other receptacles, e.g. disposable containers, under control of the weighing mechanism
- G01G13/022—Material feeding devices
- G01G13/026—Material feeding devices by mechanical conveying means, e.g. belt or vibratory conveyor
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- 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
- B22F3/003—Apparatus, e.g. furnaces
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- 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
- B22F3/004—Filling molds with powder
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- 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
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G27/00—Jigging conveyors
- B65G27/10—Applications of devices for generating or transmitting jigging movements
- B65G27/16—Applications of devices for generating or transmitting jigging movements of vibrators, i.e. devices for producing movements of high frequency and small amplitude
- B65G27/24—Electromagnetic devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/32—Filling devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G13/00—Weighing apparatus with automatic feed or discharge for weighing-out batches of material
- G01G13/003—Details; specially adapted accessories
-
- 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
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
- B22F2003/033—Press-moulding apparatus therefor with multiple punches working in the same direction
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- 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)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
- Powder Metallurgy (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention relates to a powder weighing mechanism and a one-die multi-piece magnetic field press with the same, in particular to a powder weighing mechanism and a one-die multi-piece magnetic field press. The problem of current powder weighing mechanism automatic accuracy weigh inefficiency to and a mould many magnetic field presses are because of the automatic accuracy weigh inefficiency of magnetic powder, and the inequality adopts the constant volume to add, causes the great problem of magnetic powder weight error in each die cavity. The powder weighing mechanism adopts a disposable pull plate type main feeding combined with an electromagnetic vibration feeder to complement feeding, greatly improves the powder accurate weighing efficiency, is suitable for the powder forming field of ceramics, hard alloy, metal structural members, ferrite magnetic materials and the like, and is particularly suitable for a one-die multi-piece magnetic field press. The feeding bin of the feeding mechanism is divided into a plurality of feeding bins corresponding to the die cavities one by the one-die multi-piece magnetic field press, and the consistency of the weights of the magnetic powder in the die cavities is ensured, so that the magnetic powder is saved, and the cost is reduced.
Description
Technical Field
The invention relates to a powder weighing mechanism and a one-die multi-piece magnetic field press with the same, in particular to a powder weighing mechanism and a one-die multi-piece magnetic field press.
Background
Because of low automatic and accurate weighing efficiency of magnetic powder, the existing one-die multi-piece magnetic field press generally adopts constant volume feeding, namely, the total weight of a plurality of magnetic powder pieces (such as six pieces, 100 g for each piece and 600 g for the total weight) is weighed, and then all the magnetic powder pieces (600 g) are filled (namely, constant volume) into all mold cavities through a feeding mechanism. Because the fluidity of the magnetic powder is poor, although each die cavity is filled (fixed volume), the weight error of the magnetic powder in each die cavity is larger, the magnetic powder is particularly prominent to tile-shaped parts, square bars, cylindrical parts and the like with smaller section sizes, and the deviation of the overall dimensions of each molded part is caused, so that the magnetic powder is wasted, and the cost is increased.
Disclosure of Invention
The invention solves the problems of low automatic and accurate weighing efficiency of the existing powder weighing mechanism and larger weight error of magnetic powder in each mold cavity caused by the fact that a one-mold multi-piece magnetic field press is not easy to adopt constant-volume feeding due to the low automatic and accurate weighing efficiency of the magnetic powder, and provides the powder weighing mechanism and the one-mold multi-piece magnetic field press with the weighing mechanism.
The invention is realized by adopting the following technical scheme: a powder weighing mechanism comprises a charging basket, a weighing device, an electromagnetic vibration feeder for feeding the weighing device, and a pulling plate feeder for feeding the weighing device; the pull plate type feeder comprises a horizontal fixed plate and a horizontal moving plate, the horizontal moving plate is arranged on the horizontal fixed plate, and the lower end face of a discharging pipe orifice of the charging bucket is contacted with the upper surface of the horizontal moving plate; the horizontal moving plate is provided with a main feeding hole with the size not larger than the end face of the discharging pipe orifice of the charging bucket and an auxiliary feeding hole with the size not larger than the end face of the discharging pipe orifice of the charging bucket; the horizontal fixed plate is provided with a main discharging hole with the size not smaller than that of the main discharging hole and positioned above the feeding hole of the weighing device, and an auxiliary discharging hole with the size not smaller than that of the auxiliary discharging hole and positioned above the feeding side of the electromagnetic vibration feeder, the horizontal moving plate is driven (specifically driven by a cylinder) to reciprocate, when the main discharging hole and the auxiliary discharging hole are covered by the end face of the discharging pipe mouth of the charging bucket, powder in the charging bucket fills the main discharging hole and the auxiliary discharging hole, when the main discharging hole and the main discharging hole are overlapped or positioned in the range of the main discharging hole, the powder in the main discharging hole falls into the weighing device through the main discharging hole, and when the auxiliary discharging hole and the auxiliary discharging hole are overlapped or positioned in the range of the auxiliary discharging hole, the powder in the auxiliary discharging hole falls onto the electromagnetic vibration feeder. Thus, when each time of weighing, the main feeding hole firstly feeds most (more than 90 percent, such as 95 percent) of needed powder into the weighing device at one time, and then the electromagnetic vibration feeder supplements the allowance, so that the efficiency of each time of weighing is greatly improved compared with the feeding of a single electromagnetic vibration feeder. Before the main feeding hole formally feeds the weighing machine, the electromagnetic vibration type feeding device runs for a period of time under the state that only the auxiliary feeding hole feeds the powder to ensure that the electromagnetic vibration type feeding device has sufficient powder. The electromagnetic vibration feeder and the weighing device are available products. The electromagnetic vibration feeder feeds the scale continuously and in small amounts by vibration. The weighing device comprises a turnover cylinder, a weighing hopper and a discharging hopper, wherein the feeding falls into the weighing hopper, and when the feeding weight reaches the set weight, the turnover cylinder drives a valve at the bottom of the weighing hopper to turn on, and the feeding is discharged through the discharging hopper.
A one-die multi-piece magnetic field press comprises a magnetic field press body, a weighing mechanism and a feeding mechanism;
the weighing mechanism comprises a charging basket, a weighing device, an electromagnetic vibration feeder for feeding the weighing device, and a pulling plate feeder for feeding the weighing device; the pull plate type feeder comprises a horizontal fixed plate and a horizontal moving plate, the horizontal moving plate is arranged on the horizontal fixed plate, and the lower end face of a discharging pipe orifice of the charging bucket is contacted with the upper surface of the horizontal moving plate; the horizontal moving plate is provided with a main feeding hole with the size not larger than the end face of the discharging pipe orifice of the charging bucket and an auxiliary feeding hole with the size not larger than the end face of the discharging pipe orifice of the charging bucket; the horizontal fixed plate is provided with a main discharging hole with the size not smaller than that of the main discharging hole and positioned above a feeding hole of the weighing device, and an auxiliary discharging hole with the size not smaller than that of the auxiliary discharging hole and positioned above a feeding side of the electromagnetic vibration feeder, the horizontal moving plate is driven (specifically driven by a cylinder) to reciprocate, when the main discharging hole and the auxiliary discharging hole are covered by the end face of a discharging pipe orifice of the charging bucket, magnetic powder in the charging bucket fills the main discharging hole and the auxiliary discharging hole, when the main discharging hole and the main discharging hole are overlapped or positioned in the range of the main discharging hole, the magnetic powder in the main discharging hole falls into the weighing device through the main discharging hole, and when the auxiliary discharging hole and the auxiliary discharging hole are overlapped or positioned in the range of the auxiliary discharging hole, the magnetic powder in the auxiliary discharging hole falls on the electromagnetic vibration feeder;
the feeding mechanism comprises a feeding bin, feeding sub-bins corresponding to the die cavities one by one are arranged in the feeding bin, the weighing mechanism respectively weighs the magnetic powder in each die cavity to be respectively injected into each feeding sub-bin, and then the feeding bin is moved to fill the magnetic powder in each feeding sub-bin into each die cavity.
The powder weighing mechanism adopts the disposable pull plate type main feeding and the electromagnetic vibration feeder to complement the feeding, and compared with the feeding of the existing single electromagnetic vibration feeder, the powder weighing mechanism greatly improves the accurate powder weighing efficiency, is suitable for the powder forming field of ceramics, hard alloy, metal structural parts, ferrite magnetic materials and the like, is particularly suitable for a one-die multi-piece magnetic field press, and provides an efficiency guarantee for realizing accurate quantitative feeding of the one-die multi-piece magnetic field press. Under the support of the powder weighing mechanism, the one-die multi-piece magnetic field press changes constant-volume feeding into quantitative feeding, structurally divides a feeding bin of the feeding mechanism into a plurality of feeding sub-bins which are in one-to-one correspondence with all die cavities, and realizes the structural support of quantitative feeding; the consistency of the weight of the magnetic powder in each mold cavity is ensured, thereby saving the magnetic powder and reducing the cost.
Drawings
FIG. 1 is a schematic view of the powder weighing mechanism according to the present invention in a working state;
FIG. 2 is a schematic view of the powder weighing mechanism according to the present invention in a second operating state;
FIG. 3 is a schematic view of the working state of the one-mold multi-piece magnetic field press according to embodiment 1 of the present invention;
FIG. 4 is a schematic diagram of a second embodiment of the present invention in a second operating state of the one-die multi-piece magnetic field press according to embodiment 1;
FIG. 5 is an enlarged view of a portion of FIG. 3-a feed mechanism;
FIG. 6 is a schematic view of the working state of the one-mold multi-piece magnetic field press according to embodiment 2 of the present invention;
fig. 7 is a schematic structural diagram of a one-die multi-piece magnetic field press according to embodiment 2 of the present invention in a second operating state.
In the figure: 1-feeding bin, 2-electromagnetic vibrator, 3-conveying pipeline, 4-discharge nozzle, 5-electric cylinder, 6-charging bucket, 7-electromagnetic vibration feeder, 8-horizontal fixed plate, 9-horizontal moving plate, 10-main feeding hole, 11-auxiliary feeding hole, 12-main discharging hole, 13-auxiliary discharging hole, 14-turnover cylinder, 15-weighing hopper, 16-discharging funnel and 17-horizontal guide plate.
Detailed Description
Example 1
A powder weighing mechanism comprises a charging basket 6, a weighing device, an electromagnetic vibration feeder 7 for feeding the weighing device, and a pulling plate type feeder for feeding the weighing device; the pulling plate type feeder comprises a horizontal fixed plate 8 and a horizontal moving plate 9, wherein the horizontal moving plate 9 is arranged on the horizontal fixed plate 8, and the lower end face of a discharging pipe orifice of the charging bucket 6 is contacted with the upper surface of the horizontal moving plate 9; the horizontal moving plate 9 is provided with a main feeding hole 10 with the size not larger than the end face of the discharging pipe orifice of the charging bucket 6 and an auxiliary feeding hole 11 with the size not larger than the end face of the discharging pipe orifice of the charging bucket 6; the horizontal fixing plate 8 is provided with a main discharging hole 12 with a size not smaller than the size of the main discharging hole 10 and positioned above the feeding hole of the weighing device, and a secondary discharging hole 13 with a size not smaller than the secondary discharging hole 11 and positioned above the feeding side of the electromagnetic vibration feeder 7, the horizontal moving plate 9 is driven (specifically driven by a cylinder) to reciprocate, when the main discharging hole 10 and the secondary discharging hole 11 are covered by the end face of the discharging pipe mouth of the charging bucket 6, powder in the charging bucket 6 fills the main discharging hole 10 and the secondary discharging hole 11, when the main discharging hole 10 and the main discharging hole 12 are overlapped or positioned in the range of the main discharging hole 12, the powder in the main discharging hole 10 falls into the weighing device through the main discharging hole 12, and when the secondary discharging hole 11 and the secondary discharging hole 13 are overlapped or positioned in the range of the secondary discharging hole 13, the powder in the secondary discharging hole 11 falls on the electromagnetic vibration feeder 7. Thus, during each weighing, the main feeding hole 10 firstly feeds most (more than 90 percent, such as 95 percent) of the required powder into the weighing device at one time, and the electromagnetic vibration feeder 7 is used for supplementing the allowance, so that the efficiency of each weighing is greatly improved compared with that of a single electromagnetic vibration feeder. To ensure that there is sufficient powder on the electromagnetic vibratory feeder 7, the operation is performed for a period of time with only the secondary feed holes 11 feeding, before the primary feed holes 10 formally feed the scale. The electromagnetic vibratory feeder 7 and the scale are commercially available existing products. The electromagnetic vibratory feeder 7 feeds the scale continuously and in small amounts by vibration. The weighing device comprises a turnover cylinder 14, a weighing hopper 15 and a discharging hopper 16, wherein the feed falls into the weighing hopper 15, and when the feed weight reaches the set weight, the turnover cylinder 14 drives a valve at the bottom of the weighing hopper 15 to turn on, and the feed is discharged through the discharging hopper 16.
A one-die multi-piece magnetic field press comprises a magnetic field press body, a weighing mechanism and a feeding mechanism;
the weighing mechanism comprises a charging basket 6, a weighing device, an electromagnetic vibration feeder 7 for feeding the weighing device, and a pulling plate type feeder for feeding the weighing device; the pulling plate type feeder comprises a horizontal fixed plate 8 and a horizontal moving plate 9, wherein the horizontal moving plate 9 is arranged on the horizontal fixed plate 8, and the lower end face of a discharging pipe orifice of the charging bucket 6 is contacted with the upper surface of the horizontal moving plate 9; the horizontal moving plate 9 is provided with a main feeding hole 10 with the size not larger than the end face of the discharging pipe orifice of the charging bucket 6 and an auxiliary feeding hole 11 with the size not larger than the end face of the discharging pipe orifice of the charging bucket 6; the horizontal fixed plate 8 is provided with a main discharging hole 12 with a size not smaller than the size of the main discharging hole 10 and positioned above the feeding hole of the weighing device, and a secondary discharging hole 13 with a size not smaller than the secondary discharging hole 11 and positioned above the feeding side of the electromagnetic vibration feeder 7, the horizontal moving plate 9 is driven (specifically driven by a cylinder) to reciprocate, when the main discharging hole 10 and the secondary discharging hole 11 are covered by the end face of the discharging pipe mouth of the charging bucket 6, magnetic powder in the charging bucket 6 fills the main discharging hole 10 and the secondary discharging hole 11, when the main discharging hole 10 and the main discharging hole 12 are overlapped or positioned in the range of the main discharging hole 12, the magnetic powder in the main discharging hole 10 falls into the weighing device through the main discharging hole 12, and when the secondary discharging hole 11 and the secondary discharging hole 13 are overlapped or positioned in the range of the secondary discharging hole 13, the magnetic powder in the secondary discharging hole 11 falls on the electromagnetic vibration feeder 7;
the feeding mechanism comprises a feeding bin 1, feeding sub-bins corresponding to the die cavities one by one are arranged in the feeding bin 1, magnetic powder in each die cavity which is weighed by the weighing mechanism is respectively injected into each feeding sub-bin, and then the feeding bin 1 is moved to fill the magnetic powder in each feeding sub-bin into each die cavity.
In specific implementation, the feeding bin 1 is fixed on the electromagnetic vibrator 2; each feeding sub-bin corresponds to one conveying pipeline 3 respectively, the bottom of each feeding sub-bin is communicated with one end of each conveying pipeline 3, and the other end of each conveying pipeline 3 is provided with a discharging nozzle 4. And the feeding bin 1 is moved to enable each discharging nozzle 4 to be positioned right above each die cavity, and magnetic powder in each feeding bin enters each die cavity along each conveying pipeline 3 and each discharging nozzle 4 through the vibration of the electromagnetic vibrator 2. In order to realize the automatic control movement of the feeding bin 1, the electromagnetic vibrator 2 is fixed on the electric cylinder 5, and the electric cylinder 5 drives the electromagnetic vibrator 2, so as to drive the feeding bin 1 to realize the automatic control movement. Further, in order to save space, the cross section shape and the volume of each mold cavity are the same and are arranged in a straight shape; the feeding sub-bins are also arranged in a straight line, are vertical to the conveying pipelines 3, and are in the same plane with the (central lines of the) conveying pipelines 3, so that the conveying pipelines 3 are arranged up and down, the feeding sub-bins also have deep and shallow sub-bins, and the shallowest feeding sub-bins are enough to put down the magnetic powder with required weight in the die cavities.
In specific implementation, the feeding bin 1 can be controlled to step under the (blanking funnel 16 of the scale of the) weighing mechanism, so that sequential feeding of each feeding sub-bin in the feeding bin 1 is realized.
Example 2
A powder weighing mechanism comprises a charging basket 6, a weighing device, an electromagnetic vibration feeder 7 for feeding the weighing device, and a pulling plate type feeder for feeding the weighing device; the pulling plate type feeder comprises a horizontal fixed plate 8 and a horizontal moving plate 9, wherein the horizontal moving plate 9 is arranged on the horizontal fixed plate 8, and the lower end face of a discharging pipe orifice of the charging bucket 6 is contacted with the upper surface of the horizontal moving plate 9; the horizontal moving plate 9 is provided with a main feeding hole 10 with the size not larger than the end face of the discharging pipe orifice of the charging bucket 6 and an auxiliary feeding hole 11 with the size not larger than the end face of the discharging pipe orifice of the charging bucket 6; the horizontal fixing plate 8 is provided with a main discharging hole 12 with a size not smaller than the size of the main discharging hole 10 and positioned above the feeding hole of the weighing device, and a secondary discharging hole 13 with a size not smaller than the secondary discharging hole 11 and positioned above the feeding side of the electromagnetic vibration feeder 7, the horizontal moving plate 9 is driven (specifically driven by a cylinder) to reciprocate, when the main discharging hole 10 and the secondary discharging hole 11 are covered by the end face of the discharging pipe mouth of the charging bucket 6, powder in the charging bucket 6 fills the main discharging hole 10 and the secondary discharging hole 11, when the main discharging hole 10 and the main discharging hole 12 are overlapped or positioned in the range of the main discharging hole 12, the powder in the main discharging hole 10 falls into the weighing device through the main discharging hole 12, and when the secondary discharging hole 11 and the secondary discharging hole 13 are overlapped or positioned in the range of the secondary discharging hole 13, the powder in the secondary discharging hole 11 falls on the electromagnetic vibration feeder 7. Thus, during each weighing, the main feeding hole 10 firstly feeds most (more than 90 percent, such as 95 percent) of the required powder into the weighing device at one time, and the electromagnetic vibration feeder 7 is used for supplementing the allowance, so that the efficiency of each weighing is greatly improved compared with that of a single electromagnetic vibration feeder. To ensure that there is sufficient powder on the electromagnetic vibratory feeder 7, the operation is performed for a period of time with only the secondary feed holes 11 feeding, before the primary feed holes 10 formally feed the scale. The electromagnetic vibratory feeder 7 and the scale are commercially available existing products. The electromagnetic vibratory feeder 7 feeds the scale continuously and in small amounts by vibration. The weighing device comprises a turnover cylinder 14, a weighing hopper 15 and a discharging hopper 16, wherein the feed falls into the weighing hopper 15, and when the feed weight reaches the set weight, the turnover cylinder 14 drives a valve at the bottom of the weighing hopper 15 to turn on, and the feed is discharged through the discharging hopper 16.
A one-die multi-piece magnetic field press comprises a magnetic field press body, a weighing mechanism and a feeding mechanism;
the weighing mechanism comprises a charging basket 6, a weighing device, an electromagnetic vibration feeder 7 for feeding the weighing device, and a pulling plate type feeder for feeding the weighing device; the pulling plate type feeder comprises a horizontal fixed plate 8 and a horizontal moving plate 9, wherein the horizontal moving plate 9 is arranged on the horizontal fixed plate 8, and the lower end face of a discharging pipe orifice of the charging bucket 6 is contacted with the upper surface of the horizontal moving plate 9; the horizontal moving plate 9 is provided with a main feeding hole 10 with the size not larger than the end face of the discharging pipe orifice of the charging bucket 6 and an auxiliary feeding hole 11 with the size not larger than the end face of the discharging pipe orifice of the charging bucket 6; the horizontal fixed plate 8 is provided with a main discharging hole 12 with a size not smaller than the size of the main discharging hole 10 and positioned above the feeding hole of the weighing device, and a secondary discharging hole 13 with a size not smaller than the secondary discharging hole 11 and positioned above the feeding side of the electromagnetic vibration feeder 7, the horizontal moving plate 9 is driven (specifically driven by a cylinder) to reciprocate, when the main discharging hole 10 and the secondary discharging hole 11 are covered by the end face of the discharging pipe mouth of the charging bucket 6, magnetic powder in the charging bucket 6 fills the main discharging hole 10 and the secondary discharging hole 11, when the main discharging hole 10 and the main discharging hole 12 are overlapped or positioned in the range of the main discharging hole 12, the magnetic powder in the main discharging hole 10 falls into the weighing device through the main discharging hole 12, and when the secondary discharging hole 11 and the secondary discharging hole 13 are overlapped or positioned in the range of the secondary discharging hole 13, the magnetic powder in the secondary discharging hole 11 falls on the electromagnetic vibration feeder 7;
the feeding mechanism comprises a feeding bin 1, feeding sub-bins corresponding to the die cavities one by one are arranged in the feeding bin 1, magnetic powder in each die cavity which is weighed by the weighing mechanism is respectively injected into each feeding sub-bin, and then the feeding bin 1 is moved to fill the magnetic powder in each feeding sub-bin into each die cavity.
In the concrete implementation, each feeding sub-bin in the feeding bin 1 is a vertical through hole, the feeding bin 1 is arranged on a horizontal guide plate 17 fixed at the upper end of a magnetic field press die, the through hole is vertical to the horizontal guide plate 17, the feeding bin 1 is driven by an electric cylinder to reciprocate along the horizontal guide plate 17 through a connecting rod, and when the feeding bin 1 moves to the upper surface of the magnetic field press die and each feeding sub-bin is in butt joint with each die cavity, magnetic powder enters each die cavity.
In specific implementation, the feeding bin 1 can be controlled to step under the (blanking funnel 16 of the scale of the) weighing mechanism, so that sequential feeding of each feeding sub-bin in the feeding bin 1 is realized.
Claims (6)
1. The powder weighing mechanism is characterized by comprising a charging basket (6), a weighing device, an electromagnetic vibration feeder (7) for feeding the weighing device, and a pulling plate type feeder for feeding the weighing device; the pulling plate type feeder comprises a horizontal fixed plate (8) and a horizontal moving plate (9), wherein the horizontal moving plate (9) is arranged on the horizontal fixed plate (8), and the lower end face of a discharging pipe orifice of the charging bucket (6) is contacted with the upper surface of the horizontal moving plate (9); the horizontal moving plate (9) is provided with a main feeding hole (10) with the size not larger than the end face of the discharging pipe orifice of the charging bucket (6) and an auxiliary feeding hole (11) with the size not larger than the end face of the discharging pipe orifice of the charging bucket (6); the horizontal fixed plate (8) is provided with a main discharging hole (12) with a size not smaller than the size of the main feeding hole (10) and positioned above a feeding hole of the weighing device, and a secondary discharging hole (13) with a size not smaller than the secondary feeding hole (11) and positioned above the feeding side of the electromagnetic vibration feeder (7), the horizontal moving plate (9) is driven to reciprocate, when the main feeding hole (10) and the secondary feeding hole (11) are covered by the end face of a discharging pipe opening of the charging bucket (6), powder in the charging bucket (6) fills the main feeding hole (10) and the secondary feeding hole (11), and when the main feeding hole (10) and the main discharging hole (12) are overlapped or positioned in the range of the main discharging hole (12), powder in the main feeding hole (10) falls into the weighing device through the main discharging hole (12), and when the secondary feeding hole (11) and the secondary discharging hole (13) are overlapped or positioned in the range of the secondary discharging hole (13), the powder in the secondary feeding hole (11) falls into the electromagnetic vibration feeder (7).
2. The one-die multi-piece magnetic field press comprises a magnetic field press body, a weighing mechanism and a feeding mechanism; it is characterized in that the method comprises the steps of,
the weighing mechanism comprises a charging basket (6), a weighing device, an electromagnetic vibration feeder (7) for feeding the weighing device, and a pulling plate feeder for feeding the weighing device; the pulling plate type feeder comprises a horizontal fixed plate (8) and a horizontal moving plate (9), wherein the horizontal moving plate (9) is arranged on the horizontal fixed plate (8), and the lower end face of a discharging pipe orifice of the charging bucket (6) is contacted with the upper surface of the horizontal moving plate (9); the horizontal moving plate (9) is provided with a main feeding hole (10) with the size not larger than the end face of the discharging pipe orifice of the charging bucket (6) and an auxiliary feeding hole (11) with the size not larger than the end face of the discharging pipe orifice of the charging bucket (6); the horizontal fixed plate (8) is provided with a main blanking hole (12) with the size not smaller than the size of the main feeding hole (10) and positioned above a feeding hole of the weighing device, and a secondary blanking hole (13) with the size not smaller than the secondary feeding hole (11) and positioned above the feeding side of the electromagnetic vibration feeder (7), the horizontal moving plate (9) is driven to reciprocate, when the main feeding hole (10) and the secondary feeding hole (11) are covered by the end face of a discharging pipe opening of the charging bucket (6), magnetic powder in the charging bucket (6) fills the main feeding hole (10) and the secondary feeding hole (11), and when the main feeding hole (10) and the main blanking hole (12) are overlapped or positioned in the range of the main blanking hole (12), the magnetic powder in the main feeding hole (10) falls into the weighing device through the main blanking hole (12), and when the secondary feeding hole (11) and the secondary blanking hole (13) are overlapped or positioned in the range of the secondary blanking hole (13), the magnetic powder in the secondary feeding hole (11) falls into the electromagnetic vibration feeder (7);
the feeding mechanism comprises a feeding bin (1), feeding sub-bins corresponding to the die cavities one by one are arranged in the feeding bin (1), magnetic powder in each die cavity respectively weighed by the weighing mechanism is respectively injected into each feeding sub-bin, the feeding bin (1) is moved, and the magnetic powder in each feeding sub-bin is filled into each die cavity.
3. A one-die multi-piece magnetic field press according to claim 2, characterized in that the feed hopper (1) is fixed to the electromagnetic vibrator (2); each feeding sub-bin corresponds to one conveying pipeline (3) respectively, the bottom of each feeding sub-bin is communicated with one end of each conveying pipeline (3), and the other end of each conveying pipeline (3) is provided with a discharging nozzle (4).
4. A one-die multi-piece magnetic field press as claimed in claim 3, characterized in that the electromagnetic vibrator (2) is fixed to the electric cylinder (5).
5. The one-die multi-piece magnetic field press according to claim 4, wherein the cross-sectional shape and volume of each die cavity are identical and arranged in a straight line; the feeding sub-bins are also arranged in a straight line, are vertical to the conveying pipelines (3) and are in the same plane with the conveying pipelines (3), so that the conveying pipelines (3) are arranged up and down, the feeding sub-bins also have deep and shallow sub-bins, and the shallowest feeding sub-bins are enough to put down the magnetic powder with required weight in the die cavities.
6. A mould multiple piece magnetic field press as claimed in claim 2, characterized in that each charging sub-bin in the charging bin (1) is a vertical through hole, the charging bin (1) is arranged on a horizontal guide plate (17) fixed at the upper end of the magnetic field press mould and is vertical to the horizontal guide plate (17), the charging bin (1) is driven by an electric cylinder to reciprocate along the horizontal guide plate (17) through a connecting rod, and when the charging bin (1) moves onto the magnetic field press mould and each charging sub-bin is in butt joint with each mould cavity, magnetic powder enters each mould cavity.
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| CN114632931B (en) * | 2022-03-22 | 2023-09-22 | 江西开源自动化设备有限公司 | One-die multi-piece magnetic field press and feeding method thereof |
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