CN111013481B - Powder feeding device with temperature control function - Google Patents

Powder feeding device with temperature control function Download PDF

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Publication number
CN111013481B
CN111013481B CN201911336824.5A CN201911336824A CN111013481B CN 111013481 B CN111013481 B CN 111013481B CN 201911336824 A CN201911336824 A CN 201911336824A CN 111013481 B CN111013481 B CN 111013481B
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output
feeding
conveying
unit
valve plate
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CN111013481A (en
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鹿建森
高燕
朱旺水
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Hefei Goodtimes Automation Co ltd
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Hefei Goodtimes Automation Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71Feed mechanisms
    • B01F35/717Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/7175Feed mechanisms characterised by the means for feeding the components to the mixer using propellers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71Feed mechanisms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C31/00Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/2805Mixing plastics, polymer material ingredients, monomers or oligomers

Abstract

The invention relates to a powder feeding device with a temperature control function, which comprises a feeding combination, a driving mechanism, an input mechanism and an output mechanism, wherein the feeding combination comprises a plurality of feeding units which are uniformly distributed in an annular array manner, and each feeding unit comprises a conveying cylinder, a conveying shaft and a spiral blade; a plurality of feeding units of the feeding combination are connected to a driving mechanism at the right end together, the driving mechanism comprises a driving box, the driving box is provided with power output shafts with the same number as the conveying shafts, and the power output shafts are connected with the conveying shafts through couplers; the part of the feeding combination close to the right end is also connected with an input mechanism; the left end of the feeding combination is connected with an output mechanism; the intermittent feeding combination is formed by matching the driving mechanism with the plurality of feeding units, so that the feeding units can work alternately between material pressing and output, and the problem of idle rotation of the conveying shaft caused by continuous conveying of powder in the conveying cylinder is avoided.

Description

Powder feeding device with temperature control function
Technical Field
The invention belongs to the technical field of powder feeding, and particularly relates to a powder feeding device with a temperature control function.
Background
The production engineering of the powder conveying system comprises the whole process of fully automatically mixing various raw materials and correspondingly processing the raw materials into semi-finished products and finished products, and generally comprises a storage system, a conveying system, a metering and mixing system, a filling system and a central automatic control system. Wherein, powder conveying system, measurement weighing system, batching hybrid system are the essential link of production.
In terms of the powder transport link, since the powder itself is such as: uncertainty such as humidity, viscosity, granularity, fluidity, bulk density, electrostatic charge and the like, and the conveying process of the fixed powder cannot be solved completely. In addition, some powder materials also have special properties of flammability, explosiveness, toxicity, harmfulness and the like, so that the conveying of the powder is more difficult to solve.
As for powder batching, most enterprises adopt a production mode of manual batching and feeding, so that dust is easy to fly, the environment is polluted, the body health of operators is influenced, and the development process of enterprise modernization is restricted. The mode of combining positive pressure pneumatic conveying and the counterweight tank widely applied to the chemical industry cannot solve the problem of blockage of a conveying pipeline due to material accumulation although the conveying capacity is large, the conveying distance is long, the material flow can be continuously conveyed and objects can be conveyed at high speed, and meanwhile, the requirement on the quality of the conveying pipeline is very high, so that the equipment is not only wear-resistant but also antistatic, but also complex and heavy, is difficult to install, and is expensive in investment and operation cost due to serious abrasion of materials and the equipment. In contrast, the screw metering weight system has many technical advantages. Adopt screw rod metering device, its measurement accuracy is higher, can not appear blocking up the phenomenon of material in transportation process, is the more general measurement transport mode of food, the application of fine chemical industry.
In the prior art, a screw feeder adopted by a screw metering counterweight mostly adopts a single-tube structure, resin, an auxiliary agent and the like are usually in powder shapes in the processing process of plastics or plastic particles, and the powder particles are irregular in shape, large in specific surface area and small in stacking density, so that the internal friction coefficient of the powder particles is very large, segregation and bridging phenomena are easy to occur in the feeding process of powder materials, and the single-tube structure is particularly suitable for the powder needing high-temperature control. In the screw feeder in the prior art, due to the fluffy powder material, the defects of insufficient feeding amount, low work efficiency and the like occur, and even the situation that the screw idles but does not feed materials occurs in serious cases.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a powder feeding device with a temperature control function that prevents idling of a feeder.
The invention realizes the purpose through the following technical scheme:
a powder feeding device with a temperature control function comprises a feeding combination, a driving mechanism, an input mechanism and an output mechanism, wherein the feeding combination comprises a plurality of feeding units which are uniformly distributed in an annular array manner, each feeding unit comprises a conveying cylinder, a conveying shaft and a spiral blade, the conveying shaft is arranged in the center of the conveying cylinder, the spiral blade is fixedly arranged on the conveying shaft, and the conveying shaft drives the spiral blade to drive powder in the conveying cylinder to move along the conveying shaft;
the feeding units of the feeding combination are connected to a driving mechanism at the right end together, the driving mechanism comprises a driving box, the driving box is provided with power output shafts, the number of the power output shafts is the same as that of the conveying shafts, the power output shafts are connected with the conveying shafts through couplers, and the driving box can drive the power output shafts to rotate alternatively by a fixed angle so as to drive the conveying shafts of the feeding units to rotate alternatively by a fixed angle in sequence;
the part of the feeding combination close to the right end is also connected with an input mechanism, and the input mechanism inputs powder to a feeding unit of the feeding combination;
the left end of the feeding combination is connected with an output mechanism, a feeding unit of the feeding combination outputs powder through the output mechanism at the left end, the output mechanism comprises an output box body, an output valve plate and a valve plate driving mechanism, a left end outlet of a conveying cylinder of the feeding unit is communicated with an inner cavity of the output box body, the output valve plate is arranged in the inner cavity of the output box body, a valve hole matched with an outlet of the conveying cylinder is formed in the output valve plate, and the output valve plate is connected with an output shaft of the valve plate driving mechanism. The valve plate driving mechanism drives the output valve plate to rotate to control the opening degree of an outlet of a conveying cylinder of the feeding unit and control the output of powder.
As a further optimization scheme of the invention, a first grooved pulley, a first toggle unit, a second grooved pulley and a second toggle unit are arranged in the drive box, the first toggle unit is integrally circular, a sharp corner is formed by protruding one side of the first toggle unit outwards, a first toggle column is arranged at the top of the sharp corner, a plurality of first grooved pulleys distributed in an even annular array are arranged on the periphery of the first toggle unit, a plurality of arc-shaped grooves matched with the periphery of the first toggle unit and a plurality of first toggle grooves matched with the first toggle column are arranged on the periphery of the first grooved pulley, and the arc-shaped grooves and the first toggle grooves are the same in number and are distributed in an even annular array;
the center of the first toggle unit is connected with the driving box through a main shaft, and the center of the first grooved wheel is connected with the driving box through a power output shaft;
the second grooved wheel and the second toggle unit are coaxially arranged, and the second grooved wheel is fixed on the second toggle unit or the main shaft;
a plurality of second shifting grooves are formed in the second grooved wheel and are uniformly distributed in an annular array;
one side of the second grooved wheel is provided with a second poking unit, the second poking unit comprises a swing arm and a second poking column, one end of the swing arm is connected with the driving box through a power input shaft, one surface of the other end, close to the first poking unit, is provided with the second poking column, and the second poking column is matched with a second poking groove of the second grooved wheel;
the power input shaft drives the second poking unit to rotate, a second poking column of the second poking unit can drive the second grooved wheel to rotate by a fixed angle corresponding to the stroke of a second poking groove of the second grooved wheel, the strokes of the second poking columns in the second poking groove one by one generate driving for the second grooved wheel to rotate by a fixed angle at intervals, the second grooved wheel can drive the first poking unit to rotate, the first poking unit drives a first poking column on the first poking column to rotate around the main shaft, the stroke of the first poking column entering the first poking groove of the first grooved wheel can drive the first grooved wheel to rotate by a fixed angle, then the first poking column is separated from the first grooved wheel and moves to the position of the next first grooved wheel, so that the first grooved wheel rotates by a fixed angle, the first grooved wheels are sequentially traversed one by one another, and the first grooved wheels are circularly reciprocated after traversing one circle. The arc-shaped groove and the first poking unit are matched to enable the first poking column to be separated from the first grooved wheel, and then the first grooved wheel is locked by the first poking unit.
As a further optimization scheme of the invention, the power input shaft extends to the outer side of the driving box and is connected with an output shaft of the driving motor through a coupling. The power input shaft is driven by the driving motor to input power to the driving box.
As a further optimization scheme of the invention, the input mechanism comprises an input box body, the right end of the conveying cylinder is fixedly connected with the input box body, the conveying shaft of the feeding unit penetrates through the input box body to be connected to the driving mechanism, and the spiral blade of the feeding unit extends into the input box body. The feeding unit inputs the powder into the conveying cylinder from the input box body.
As a further optimization scheme of the invention, the left end of the conveying cylinder extends into the output box body, the left end of the conveying cylinder is provided with an end cover, and the end cover is in a shape of a broken circle integrally and forms an outlet with the conveying cylinder. The powder is discharged from the outlet into an output box.
As a further optimization scheme of the invention, the output valve plate is circular as a whole, the valve holes in the output valve plate are also circular, the positions of the valve holes correspond to the positions of the feeding units one by one, and the center of the output valve plate is connected with the output shaft of the valve plate driving mechanism.
As a further optimization scheme of the invention, the output valve plate of the output mechanism is provided with a valve hole matched with the feeding unit, when discharging is needed, the valve plate driving mechanism drives the output valve plate to synchronously rotate with the main shaft, so that the valve hole is aligned with the outlet of the feeding unit driven by the driving mechanism at that time, and the valve plate seals the outlets of other feeding units to avoid leakage.
The invention has the beneficial effects that:
1) the intermittent feeding combination is formed by matching the driving mechanism with the plurality of feeding units, so that the feeding units can alternately work between material pressing and output, and the problem of idle rotation of the conveying shaft caused by continuous conveying of powder in the conveying cylinder is avoided;
2) the driving mechanism outputs the powder by traversing and driving the conveying shaft of the feeding unit to rotate and fix the angular displacement, so that the powder can be conveniently measured and is not influenced by intermittent output;
3) the invention can make the output flow distribution of the powder more uniform and optimize the output and the measurement.
Drawings
FIG. 1 is a schematic structural diagram of the present invention in accordance with one embodiment;
FIG. 2 is a schematic structural diagram of an input box according to the present invention in the first embodiment;
FIG. 3 is a schematic structural diagram of an output box according to the first embodiment of the present invention;
FIG. 4 is a schematic structural view of an output valve plate according to the present invention in the first embodiment;
FIG. 5 is a schematic structural view of a driving mechanism according to the present invention in accordance with one embodiment;
FIG. 6 is a schematic structural diagram of a second toggle unit according to the first embodiment of the present invention;
fig. 7 is a schematic structural view of an output valve plate of the present invention in the second embodiment.
In the figure: a feeding combination 1, a feeding unit 10, a conveying cylinder 101, a conveying shaft 102 and a spiral blade 103;
the device comprises a driving mechanism 2, a driving box 201, a power output shaft 202, a power input shaft 203, a first grooved wheel 204, a first toggle unit 205, a second grooved wheel 206, a second toggle unit 207, a first toggle column 208, an arc-shaped groove 209, a first toggle groove 210, a main shaft 211, a second toggle groove 212, a swing arm 213 and a second toggle column 214;
an input mechanism 3, an input box 301;
output mechanism 4, output case 401, output valve plate 402, valve plate drive mechanism 403.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Example one
As shown in fig. 1-6, a powder feeding device with a temperature control function includes a feeding assembly 1, a driving mechanism 2, an input mechanism 3 and an output mechanism 4, where the feeding assembly 1 includes a plurality of feeding units 10 distributed in an even annular array, each feeding unit 10 includes a conveying cylinder 101, a conveying shaft 102 and a spiral blade 103, the conveying shaft 102 is disposed at the center of the conveying cylinder 101, the conveying shaft 102 is fixedly provided with the spiral blade 103, and the conveying shaft 102 drives the spiral blade 103 to drive powder inside the conveying cylinder 101 to move along the conveying shaft 102;
the feeding units 10 of the feeding combination 1 are connected to a driving mechanism 2 at the right end, the driving mechanism 2 comprises a driving box 201, the driving box 201 is provided with power output shafts 202, the number of the power output shafts 202 is the same as that of the conveying shafts 102, the power output shafts 202 are connected with the conveying shafts 102 through couplers, and the driving box 201 can drive the power output shafts 202 to rotate alternatively by a fixed angle so as to drive the conveying shafts 102 of the feeding units 10 to rotate alternatively by a fixed angle in sequence;
the part of the feeding combination 1 close to the right end is also connected with an input mechanism 3, and the input mechanism 3 inputs powder into a feeding unit 10 of the feeding combination 1;
the left end of the feeding combination 1 is connected with an output mechanism 4, a feeding unit 10 of the feeding combination 1 outputs powder through the output mechanism 4 at the left end, the output mechanism 4 comprises an output box body 401, an output valve plate 402 and a valve plate driving mechanism 403, a left end outlet of a conveying cylinder 101 of the feeding unit 10 is communicated with an inner cavity of the output box body 401, the output valve plate 402 is arranged in the inner cavity of the output box body 401, a valve hole matched with an outlet of the conveying cylinder 101 is formed in the output valve plate 402, and the output valve plate 402 is connected with an output shaft of the valve plate driving mechanism 403. The valve plate driving mechanism 403 drives the output valve plate 402 to rotate to control the opening degree of the outlet of the conveying cylinder 101 of the feeding unit 10, and control the output of the powder.
A first grooved wheel 204, a first toggle unit 205, a second grooved wheel 206 and a second toggle unit 207 are arranged in the driving box 201, the first toggle unit 205 is integrally circular, a sharp corner part is formed by protruding one side of the first toggle unit outwards, a first toggle column 208 is arranged at the top of the sharp corner part, a plurality of first grooved wheels 204 distributed in an even annular array are arranged on the periphery of the first toggle unit 205, a plurality of arc-shaped grooves 209 matched with the periphery of the first toggle unit 205 and a plurality of first toggle grooves 210 matched with the first toggle column 208 are arranged on the periphery of the first grooved wheel 204, the number of the arc-shaped grooves 209 and the number of the first toggle grooves 210 are the same, and the arc-shaped grooves 209 and the first toggle grooves 210 are distributed in an even annular array;
the center of the first toggle unit 205 is connected with the driving box 201 through a main shaft 211, and the center of the first sheave 204 is connected with the driving box 201 through a power output shaft 202;
the second grooved wheel 206 and the second toggle unit 207 are coaxially arranged, and the second grooved wheel 206 is fixed on the second toggle unit 207 or fixedly arranged on the main shaft 211;
the second grooved pulley 206 is provided with a plurality of second shifting grooves 212 which are uniformly distributed in an annular array;
one side of the second grooved wheel 206 is provided with a second toggle unit 207, the second toggle unit 207 comprises a swing arm 213 and a second toggle column 214, one end of the swing arm 213 is connected with the driving box 201 through a power input shaft 203, one side of the other end close to the first toggle unit 205 is provided with the second toggle column 214, and the second toggle column 214 is matched with a second toggle groove 212 of the second grooved wheel 206;
the power input shaft 203 drives the second toggle unit 207 to rotate, a stroke of a second toggle column 214 of the second toggle unit 207 corresponding to a second toggle groove 212 of the second sheave 206 can drive the second sheave 206 to rotate by a fixed angle, a stroke of the second toggle column 214 in the second toggle groove 212 one by one generates a drive for the second sheave 206 to rotate by a fixed angle at intervals, the second sheave 206 rotates to drive the first toggle unit 205 to rotate, the first toggle unit 205 drives a first toggle column 208 thereon to rotate around the main shaft 211, a stroke of the first toggle column 208 entering a first toggle groove 210 of the first sheave 204 drives the first sheave 204 to rotate by a fixed angle, and then the first toggle column 208 is separated from the first sheave 204 and moves to a next first sheave 204 position, so that the first sheave 204 rotates by a fixed angle, sequentially traverses each first sheave 204 one by one, and circulates and reciprocates after traversing. The arc-shaped groove 209 is matched with the first toggle unit 205, so that the first grooved wheel 204 is locked by the first toggle unit 205 after the first toggle column 208 is separated from the first grooved wheel 204.
Preferably, the power input shaft 203 extends to the outside of the driving box 201 and is connected with the output shaft of the driving motor 215 through a coupling. The power input shaft 203 is driven by the driving motor 215 to input power to the driving box 201.
Preferably, the first thumb groove 210 is directed toward the center of the first sheave 204.
Preferably, a gap is formed between the inner end of the input power shaft and the first toggle unit 205.
Preferably, the main shaft 211 is connected to the driving box 201 through a bearing.
Preferably, the input mechanism 3 includes an input housing 301, the right end of the transport cylinder 101 is fixedly connected to the input housing 301, the transport shaft 102 of the feeding unit 10 passes through the input housing 301 to be connected to the driving mechanism 2, and the spiral blade 103 of the feeding unit 10 extends into the input housing 301. The feeding unit 10 feeds the powder from the feed box 301 into the transfer cylinder 101.
Preferably, the top of the input box 301 is provided with a feed inlet. The bottom of the output box 401 is provided with a discharge hole.
Preferably, the left end of the conveying cylinder 101 extends into the output box 401, and the left end of the conveying cylinder 101 is provided with an end cover which is in a shape of a broken circle as a whole and forms an outlet with the conveying cylinder 101. From which the powder is discharged into an output bin 401.
Preferably, the left end of delivery shaft 102 is connected to the end cap via a bearing.
Preferably, the output valve plate 402 is circular, the valve holes on the output valve plate 402 are also circular, the positions of the valve holes correspond to the positions of the feeding units 10 one by one, and the center of the output valve plate 402 is connected with the output shaft of the valve plate driving mechanism 403.
Preferably, the diameter of the valve bore is slightly larger than the diameter of the delivery cartridge 101.
Preferably, the valve plate driving mechanism 403 may be a servo motor, and is connected to a power source through a driver. The signal input end of the driver is connected with the controller.
The principle of the invention is as follows: the output power of the driving mechanism 2 sequentially drives the conveying shafts 102 of the plurality of feeding units 10 of the feeding combination 1 to rotate, so as to push the powder to move leftwards, and the output valve plate 402 of the output mechanism 4 is matched for control to have two modes:
first, the output valve plate 402 closes the outlet of the feeding unit 10, and at this time, the conveying shaft 102 pushes the powder to move leftwards, so as to compact the powder inside the conveying cylinder 101.
Second, the output valve plate 402 opens the outlet of the feeding unit 10, and at this time, the conveying shaft 102 pushes the powder to move to the left, so as to output the powder inside the conveying cylinder 101.
The powder can be compacted and output in the two modes, the feeding unit 10 can be compacted for N (N is not less than 1 and is an integer) times and then output for one time, and N can be adaptively adjusted according to the self characteristics of the powder, humidity, temperature and other factors.
It can also be seen from the above process that in the process of one output, each feeding unit 10 performs one output, at this time, the number of rotations of the main shaft 211 is 1, the output amount of the powder is directly proportional to the number of rotations of the main shaft 211, and the material amount T output by the feeding unit 10 after one rotation of the main shaft 211 is the total output amount T, which is also convenient for material metering in this way.
Example two
As shown in fig. 7, different from the first embodiment, an output valve plate 402 of the output mechanism 4 is provided with a valve hole matched with the feeding unit 10, when discharging is required, a valve plate driving mechanism 403 drives the output valve plate 402 to rotate synchronously with the main shaft 211, so that the valve hole is aligned with the outlet of the feeding unit 10 driven by the driving mechanism 2 at that time, and at this time, the valve plate seals the outlets of other feeding units 10 to avoid leakage.
Further, the valve hole may be an arc-shaped hole. The maximum opening degree can be maintained for a certain period of time while passing through the feeding unit 10.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims (6)

1. The utility model provides a take powder feeding device of control by temperature change function which characterized in that: the feeding assembly comprises a plurality of feeding units which are uniformly distributed in an annular array, each feeding unit comprises a conveying cylinder, a conveying shaft and a spiral blade, the conveying shaft is arranged at the center of the conveying cylinder, the spiral blade is fixedly arranged on the conveying shaft, and the conveying shaft drives the spiral blade to drive powder in the conveying cylinder to move along the conveying shaft;
the feeding units of the feeding combination are connected to a driving mechanism at the right end together, the driving mechanism comprises a driving box, the driving box is provided with power output shafts, the number of the power output shafts is the same as that of the conveying shafts, the power output shafts are connected with the conveying shafts through couplers, and the driving box can drive the power output shafts to rotate alternatively by a fixed angle so as to drive the conveying shafts of the feeding units to rotate alternatively by a fixed angle in sequence;
the part of the feeding combination close to the right end is also connected with an input mechanism, and the input mechanism inputs powder to a feeding unit of the feeding combination;
the left end of the feeding combination is connected with an output mechanism, a feeding unit of the feeding combination outputs powder through the output mechanism at the left end, the output mechanism comprises an output box body, an output valve plate and a valve plate driving mechanism, an outlet at the left end of a conveying cylinder of the feeding unit is communicated with an internal cavity of the output box body, the output valve plate is arranged in the internal cavity of the output box body, a valve hole matched with the outlet of the conveying cylinder is formed in the output valve plate, and the output valve plate is connected with an output shaft of the valve plate driving mechanism; the valve plate driving mechanism drives the output valve plate to rotate to control the opening degree of an outlet of a conveying cylinder of the feeding unit and control the output of powder;
the driving box is internally provided with a first grooved pulley, a first stirring unit, a second grooved pulley and a second stirring unit, the first stirring unit is integrally circular, one side of the first stirring unit protrudes outwards to form a sharp corner part, the top of the sharp corner part is provided with a first stirring column, the periphery of the first stirring unit is provided with a plurality of first grooved pulleys which are uniformly distributed in an annular array manner, the periphery of each first grooved pulley is provided with a plurality of arc-shaped grooves matched with the periphery of the first stirring unit and a plurality of first stirring grooves matched with the first stirring column, and the arc-shaped grooves and the first stirring grooves are the same in number and are uniformly distributed in an annular array manner;
the center of the first toggle unit is connected with the driving box through a main shaft, and the center of the first grooved wheel is connected with the driving box through a power output shaft;
the second grooved wheel and the second toggle unit are coaxially arranged, and the second grooved wheel is fixed on the second toggle unit or the main shaft;
a plurality of second shifting grooves are formed in the second grooved wheel and are uniformly distributed in an annular array;
one side of the second grooved wheel is provided with a second poking unit, the second poking unit comprises a swing arm and a second poking column, one end of the swing arm is connected with the driving box through a power input shaft, the other end of the swing arm close to one side of the first poking unit is provided with a second poking column, and the second poking column is matched with a second poking groove of the second grooved wheel.
2. The powder feeding device with temperature control function as claimed in claim 1, wherein: the power input shaft extends to the outer side of the driving box and is connected with an output shaft of the driving motor through a coupler.
3. The powder feeding device with temperature control function as claimed in claim 1, wherein: the input mechanism comprises an input box body, the right end of the conveying cylinder is fixedly connected with the input box body, a conveying shaft of the feeding unit penetrates through the input box body to be connected to the driving mechanism, and the spiral blade of the feeding unit extends into the input box body.
4. The powder feeding device with temperature control function as claimed in claim 1, wherein: the left end of the conveying cylinder extends into the output box body, an end cover is arranged at the left end of the conveying cylinder, the end cover is integrally in a shape of a broken circle, and an outlet is formed between the end cover and the conveying cylinder.
5. The powder feeding device with temperature control function as claimed in claim 1, wherein: the output valve plate is integrally circular, the valve holes in the output valve plate are also circular, the valve holes are in one-to-one correspondence with the feeding units, and the center of the output valve plate is connected with an output shaft of the valve plate driving mechanism.
6. The powder feeding device with temperature control function as claimed in claim 1, wherein: and the output valve plate of the output mechanism is provided with a valve hole matched with the feeding unit.
CN201911336824.5A 2019-12-23 2019-12-23 Powder feeding device with temperature control function Active CN111013481B (en)

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