CN110883963B - Raw material stirring device - Google Patents
Raw material stirring device Download PDFInfo
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- CN110883963B CN110883963B CN201911208646.8A CN201911208646A CN110883963B CN 110883963 B CN110883963 B CN 110883963B CN 201911208646 A CN201911208646 A CN 201911208646A CN 110883963 B CN110883963 B CN 110883963B
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- negative pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
- B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
- B29B7/12—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft
- B29B7/16—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft with paddles or arms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
- B29B7/24—Component parts, details or accessories; Auxiliary operations for feeding
- B29B7/242—Component parts, details or accessories; Auxiliary operations for feeding in measured doses
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention relates to the field of plastic processing, and particularly discloses a raw material stirring device which comprises a stirring barrel, a stirring unit and a feeding unit, wherein the stirring unit comprises a stirring shaft, a driving piece and stirring blades, and the stirring shaft is vertically arranged; the feeding unit comprises a negative pressure pipe, a weighing barrel and a negative pressure generator, the negative pressure pipe is communicated with the weighing barrel, the bottom of the weighing barrel is provided with a weight sensor and a discharge port, and the discharge port is communicated with the stirring barrel; the negative pressure generator is communicated with a vent pipe, the vent pipe is communicated with the stirring barrel, a first filter screen is fixed on the side wall of the weighing barrel, and the first filter screen is positioned between the weighing barrel and the negative pressure generator. The stirring device can automatically add and weigh raw materials.
Description
Technical Field
The invention relates to the field of plastic processing, in particular to a raw material stirring device.
Background
The plastic belongs to an organic synthetic polymer material and is widely applied, and the existing plastic is generally prepared by taking a monomer as a raw material and adding various additives. Plastics need to go through many processes in the production process, and in the case of thermoplastic plastics, raw materials need to be heated in the processing process to promote the raw materials to be melted into a molten state, and then extruded by an extrusion mechanism, and after the temperature is reduced, the raw materials are solidified and formed again. In order to improve the production efficiency of plastics, the raw materials need to be mixed in advance according to a certain proportion before being heated and extruded, and in order to promote the raw materials to be fully contacted and improve the polyaddition or polycondensation efficiency, the mixed raw materials need to be stirred.
The existing stirring mechanism can only stir raw materials generally, the raw materials cannot be added automatically, the raw materials are required to be added into the stirring mechanism manually, and the consumption of the raw materials in the production process is large, so that when a manual adding mode is adopted, the labor intensity of workers is high, and in addition, the manual adding is inevitable, partial raw materials drop out of the stirring mechanism in the adding process, so that the raw materials are wasted.
Disclosure of Invention
The invention aims to provide a stirring device capable of automatically adding raw materials.
In order to achieve the purpose, the technical scheme of the invention is as follows: the raw material stirring device comprises a stirring barrel, a stirring unit positioned in the stirring barrel and a feeding unit positioned above the stirring barrel, wherein the stirring unit comprises a stirring shaft rotationally connected with the stirring barrel, a driving piece for driving the stirring shaft to rotate and a plurality of stirring blades connected to the stirring shaft, and the stirring shaft is vertically arranged; the feeding unit comprises a negative pressure pipe, a weighing barrel and a negative pressure generator communicated with the weighing barrel, the negative pressure pipe is communicated with the weighing barrel, the bottom of the weighing barrel is provided with a weight sensor and a closable discharge hole, and the discharge hole is communicated with the stirring barrel; the negative pressure generator is communicated with a vent pipe, the vent pipe is communicated with the stirring barrel, a first filter screen is fixed on the side wall of the weighing barrel, and the first filter screen is positioned between the weighing barrel and the negative pressure generator.
The beneficial effect of this scheme does:
1. negative pressure generator during operation in this scheme makes the weighing bucket form the negative pressure to make negative pressure intraductal negative pressure that forms, can inhale the weighing bucket with the raw materials when the raw materials contact of negative pressure pipe and external storage, then can follow in the discharge gate entering agitator of weighing bucket, no longer need artifical transport raw materials, avoid the raw materials to fall to the agitator and cause the waste outward.
2. The weight sensor can weigh the raw materials in the weighing barrel, and the raw materials do not need to be weighed manually, so that the workload of workers is further reduced.
3. Gas can get into the agitator from the breather pipe in to play the effect of stirring to the raw materials in the agitator, improve the mixed effect to the raw materials.
Furthermore, a first air inlet cavity communicated with the air pipe is arranged in the stirring shaft, and a plurality of first through holes communicated with the inner cavity of the stirring barrel are formed in the side wall of the first air inlet cavity.
The beneficial effect of this scheme does: gas gets into first air inlet chamber earlier, then is dispersed by first through-hole, gets into the agitator from different directions again, and is better to the stirring effect of raw materials.
Further, the agitator bottom is equipped with the chamber that holds coaxial with the (mixing) shaft, it is connected with the supporting shoe to hold the intracavity rotation, and the diameter of supporting shoe is greater than the diameter of (mixing) shaft, the (mixing) shaft lower extreme runs through and holds the chamber top and fixed with the supporting shoe.
The beneficial effect of this scheme does: the diameter of supporting shoe is greater than the diameter of (mixing) shaft lower extreme, and the area of contact of supporting shoe and agitator is bigger to under the same condition of (mixing) shaft and stirring vane's gross weight, pressure between supporting shoe and the agitator is littleer, thereby avoids supporting shoe and agitator bottom to warp under the pressure effect.
Furthermore, a second air inlet cavity is formed in the side wall of the stirring barrel, a second through hole communicated with the inner cavity of the stirring barrel is formed in the side wall of the second air inlet cavity, a first channel communicated with the first air inlet cavity is transversely formed in the supporting block, and a second channel communicated with the second air inlet cavity and the first channel is formed in the bottom of the stirring shaft.
The beneficial effect of this scheme does: when the first channel is communicated with the second channel, the gas enters the second gas inlet cavity at the same time, and the flowing direction of the gas flow blown out from the first through hole is opposite to that of the gas flow blown out from the second through hole, so that the raw materials can move in the opposite direction, and the stirring effect on the raw materials is further improved.
Further, the vertical spout that is equipped with on the (mixing) shaft, be fixed with on the stirring vane with spout sliding connection's slider, the agitator inner wall is equipped with the annular guide way of the curve recess on the similar cylindrical cam, the quantity of guide way the same with stirring vane's quantity and with stirring vane one-to-one, the one end that stirring vane kept away from the (mixing) shaft is fixed with the guide block, guide block and guide way sliding connection.
The beneficial effect of this scheme does: the guide groove and the guide block enable the stirring blades to move vertically relative to the stirring shaft along with the rotation of the stirring shaft, and the stirring effect on the raw materials is improved.
Further, the first through hole is located in the middle of the sliding groove.
The beneficial effect of this scheme does: when the stirring vane passes through the first through hole, the gas blown out from the first through hole is directly blown to the surface of the stirring vane, so that part of the raw materials attached to the stirring vane is enabled to fall off, and the raw materials can be mixed with other raw materials, and the stirring effect is further improved.
Further, still include a plurality of storage units, storage unit distributes along weighing bucket circumference, storage unit includes the storage vat, manages and the intake pipe with inhaling of storage vat intercommunication, it is fixed with first connecting block to inhale material pipe to keep away from storage vat one end, the weighing bucket one end is kept away from to the negative pressure pipe is fixed with the second connecting block, it runs through first connecting block and second connecting block respectively to inhale material pipe and negative pressure pipe, just lateral wall that the lateral wall of inhaling the material pipe and the lateral wall that the negative pressure pipe was kept away from to the second connecting block are kept away from to first connecting block pastes.
The beneficial effect of this scheme does: every kind of raw materials is stored respectively in the storage vat of every storage unit, and when the first connecting block of second connecting block and this storage unit offseted, the negative pressure pipe feeds through with inhaling of this storage unit to can make this raw materials get into the weighing bucket in, realize the feeding of this raw materials, need not artifical too much removal negative pressure pipe, further reduce workman's work load. Simultaneously because a plurality of storage units arrange in proper order, only need to make the negative pressure pipe communicate with different storage units in proper order and can accomplish the feeding to multiple raw materials, when avoiding artifical use negative pressure pipe to inhale the raw materials, cause the repeated feeding of same raw materials or omit a certain raw materials.
Secondly, plastics need carry out the forced air cooling to plastics after extrusion moulding, and hot-air after the forced air cooling can reuse in this scheme, and in the hot-air let in the back can get into the storage vat from the intake pipe, the raw materials that make in the storage vat keep dry.
Further, be equipped with the gas storage chamber in the second connecting block and with the slip chamber of gas storage chamber intercommunication, breather pipe intercommunication slip chamber and weighing bucket, slip intracavity sliding seal has the piston to be equipped with the spring that both ends were fixed respectively at the slip intracavity wall of piston, the piston seals the breather pipe, and is equipped with cold air pipe and the steam pipe that can communicate with the breather pipe on the piston, steam pipe and first chamber intercommunication of admitting air.
The beneficial effect of this scheme does: when hot air passes through the negative pressure pipe, gas in the gas storage cavity is expanded, the piston is pushed to be communicated along the sliding cavity, so that the hot air pipe is communicated with the vent pipe, and hot gas enters the stirring barrel to preheat the raw materials; and when first connecting block staggers with the second connecting block, cold air gets into the negative pressure pipe, and the gas volume inflation in the gas storage chamber, and the piston resets, and the cold air pipe communicates with the breather pipe, and cold air is discharged from the cold air pipe, no longer gets into the agitator, avoids making the temperature of the raw materials in the agitator reduce after a large amount of cold air gets into the agitator.
Further, the air storage cavity is annular and is positioned on the periphery of the negative pressure pipe.
The beneficial effect of this scheme does: the contact surface between the gas in the gas storage cavity and the negative pressure pipe is larger, more heat can be sucked in unit time, and the gas expansion speed is accelerated.
Furthermore, the lower end of the material suction pipe is positioned at the lower part of the material storage barrel.
The beneficial effect of this scheme does: when the raw materials in the storage vat are less, inhale the material pipe and still can inhale the raw materials, guarantee normally reinforced.
Drawings
FIG. 1 is a front longitudinal sectional view of example 1 of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is an enlarged view at B of FIG. 1;
FIG. 4 is a schematic view of the latex sheet of FIG. 3 in an outwardly bulged condition;
FIG. 5 is a front longitudinal sectional view of embodiment 2 of the present invention;
FIG. 6 is a top view of FIG. 5;
fig. 7 is an enlarged view at C in fig. 5.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the stirring barrel comprises a stirring barrel 1, an inlet 11, an outlet 12, an exhaust port 13, a second filter screen 14, a guide groove 15, a second air inlet cavity 16, a second through hole 17, a second channel 18, a stirring shaft 2, a driven gear 21, a support block 22, a first channel 23, a first air inlet cavity 24, a chute 25, a first through hole 26, a latex sheet 27, a third through hole 28, a stirring blade 3, a sliding block 31, a guide block 32, a weighing barrel 4, a weight sensor 41, a discharge pipe 42, a negative pressure generator 43, a negative pressure pipe 44, a vent pipe 45, a mounting plate 5, a storage barrel 6, a suction pipe 61, a first connecting block 62, an air inlet pipe 63, a second connecting block 7, an air bag 71, a limiting block 72, a spring 73, a piston 8, a hot air pipe 81, a cold air pipe 82, a guide cover 9 and a.
Example 1
The raw material stirring device, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, includes a frame, a stirring barrel 1, a stirring unit located in the stirring barrel 1, and a feeding unit located above the stirring barrel 1. Agitator 1 welds in the frame, and the feed unit includes negative pressure pipe 44, weighing bucket 4 and negative pressure generator 43, and weighing bucket 4 in this embodiment welds in the frame, and negative pressure pipe 44 and weighing bucket 4 intercommunication, weighing bucket 4 bottom are installed weighing sensor 41 to when forming the negative pressure in weighing bucket 4, weighing sensor 41's reading is zero. The lower extreme of weighing bucket 4 still is equipped with the discharge gate, the welding of weighing bucket 4 bottom has the discharging pipe 42 with the discharge gate intercommunication, discharging pipe 42 lower extreme is sealed, and discharging pipe 42 lower extreme intercommunication has guide cover 9, guide cover 9 is the hopper form, and guide cover 9 lower extreme offsets with 1 top of agitator, guide cover 9 upper end is sealed, discharging pipe 42 lower extreme off-centre is equipped with intercommunicating pore 91, guide cover 9 upper end off-centre is equipped with another intercommunicating pore 91, it can make two intercommunicating pores 91 align to rotate guide cover 9. The top of the stirring barrel 1 is provided with an inlet 11 and an inlet cover in threaded fit with the inlet 11, the inlet 11 is positioned below the material guide cover 9, and the bottom of the stirring barrel 1 is provided with an outlet 12 and an outlet cover in threaded fit with the outlet 12. Negative pressure generator 43 in this embodiment uses the air pump, and the inlet end of negative pressure generator 43 passes through pipeline and weighing bucket 4 intercommunication, and the welding of weighing bucket 4 lateral wall has first filter screen, and first filter screen is located between negative pressure generator 43 and the weighing bucket 4, avoids the raw materials to make negative pressure generator 43 damage in getting into negative pressure generator 43.
The stirring unit includes (mixing) shaft 2, driving piece and a plurality of stirring vane 3, (mixing) shaft 2 is located agitator 1, and 1 bottom of agitator is equipped with and holds the chamber, holds the intracavity and is equipped with the supporting shoe 22 that the diameter is less than and holds the chamber diameter, supporting shoe 22, hold the chamber, agitator 1 and (mixing) shaft 2 are coaxial, and (mixing) shaft 2 lower extreme runs through and holds the chamber top and weld with supporting shoe 22, and (mixing) shaft 2 upper end runs through agitator 1. The driving piece in this embodiment uses the motor, and the driving piece passes through the bolt fastening in the frame, and (mixing) shaft 2 upper end is connected with driven gear 21 through the flat key, is connected with drive gear through the flat key on the output shaft of driving piece, and drive gear and driven gear 21 meshing.
Be equipped with first chamber 24 of admitting air along the axial in the (mixing) shaft 2, first chamber 24 lateral wall of admitting air is equipped with a plurality of first through-holes 26, a plurality of first through-holes 26 all with 1 inner chamber intercommunication of agitator, all splice in a plurality of first through-holes 26 has emulsion piece 27, emulsion piece 27 center department is equipped with third through-hole 28, and under natural state, the aperture of third through-hole 28 is less than 0.1 cm.
The air outlet end of the negative pressure generator 43 is communicated with an air pipe 45, the lower end of the air pipe 45 is communicated with the stirring barrel 1 through a rotary joint, an air outlet 13 is formed in the stirring barrel 1, and a second filter screen 14 is connected with the stirring barrel 1 in an adhesive mode, so that raw materials in the stirring barrel 1 are prevented from being leaked from the air outlet 13. The lateral wall of the stirring barrel 1 is provided with an annular second air inlet cavity 16, the lateral wall of the second air inlet cavity 16 is provided with a plurality of second through holes 17, and the plurality of second through holes 17 are communicated with the inner cavity of the stirring barrel 1. An L-shaped first channel 23 is transversely arranged on the supporting block 22, the upper end of the first channel 23 is communicated with a first air inlet cavity 24, an L-shaped second channel 18 is transversely arranged at the bottom of the stirring barrel 1, the upper end of the second channel 18 is communicated with a second air inlet cavity 16, and in the rotating process of the supporting block 22, the first channel 23 is aligned with and communicated with the second channel 18.
Vertical a plurality of spouts 25 that are equipped with on the 2 outer walls of (mixing) shaft, 1 inner wall of agitator is equipped with a plurality of guide ways 15 that are similar to the curve recess on the cylindrical cam, guide way 15 is the annular, and the quantity of spout 25 and guide way 15 all is the same with stirring vane 3's quantity, spout 25 and stirring vane 3 one-to-one, guide way 15 and stirring vane 3 one-to-one, stirring vane 3 has slider 31 that is located spout 25 towards the one end welding of (mixing) shaft 2, the other end welding has the guide block 32 that is located the guide way 15, slider 31's size is less than spout 25's size slightly, the size of guide block 32 is less than the size of guide way 15 slightly, so slider 31 and guide block 32 can follow spout 25 and guide way 15 respectively and slide. The first through hole 26 is located in the sliding groove 25 and in the middle of the sliding groove 25, so that the stirring blade 3 can pass through the first through hole 26 when sliding up and down along the sliding groove 25, and the raw material attached to the stirring blade 3 falls off under the action of the airflow blown out from the first through hole 26, so that the raw material can be mixed with other raw materials.
The specific implementation process of this embodiment is as follows:
when the stirring device works in the embodiment, the driving piece and the negative pressure generator 43 are manually started firstly, the driving piece drives the stirring shaft 2 to rotate, the negative pressure generator 43 enables the negative pressure pipe 44 and the weighing barrel 4 to form negative pressure, then one end of the negative pressure pipe 44 far away from the negative pressure generator 43 extends into the storage device for storing raw materials from the outside, the raw materials are sucked into the weighing barrel 4, when the raw materials entering the weighing barrel 4 meet the requirement, the negative pressure generator 43 is manually closed, the material guide cover 9 is rotated, the two communicating holes 91 are aligned, and the raw materials in the weighing barrel 4 fall into the stirring barrel 1 from the discharge hole. Then, the above steps are repeated to feed the next raw material, multiple raw materials are stirred by the stirring blade 3 after entering the stirring barrel 1, when the negative pressure generator 43 works and the first channel 23 and the second channel 18 are staggered, the formed airflow enters the first air inlet cavity 24 from the vent pipe 45, so that the pressure in the first air inlet cavity 24 is greatly increased, the latex sheet 27 bulges outwards at the moment, the aperture of the third through hole 28 is increased, the airflow in the first air inlet cavity 24 is blown out from the third through hole 28 to stir the raw materials in the stirring barrel 1, and at the moment, the raw materials move to one side far away from the stirring shaft 2. When the first channel 23 is aligned with the second channel 18, the gas enters the second gas inlet cavity 16 at the same time, the pressure in the first gas inlet cavity 24 is reduced, the outward swelling degree of the latex sheet 27 is reduced and even the original shape is recovered, the aperture of the third through hole 28 is reduced and even the original shape is recovered, the gas flow is mainly blown out from the second through hole 17, the raw material in the stirring barrel 1 moves reversely, the stirring effect on the raw material is improved, and after the raw material is stirred, the outlet 12 is opened, and the raw material is taken out from the outlet 12.
Example 2
The difference between this embodiment and embodiment 1 is that, as shown in fig. 5 and 7, a mounting plate 5 is disposed between the weighing barrel 4 and the stirring barrel 1 in this embodiment, an annular limiting groove is disposed on the rack, the periphery of the mounting plate 5 is located in the limiting groove, and the mounting plate 5 can rotate relative to the rack. Welding on mounting panel 5 bottom 1 agitator, and agitator 1, mounting panel 5 and entry 11 are coaxial, and second connecting block 7 has still been welded at the 5 top of mounting panel, and negative pressure pipe 44 runs through second connecting block 7, and is equipped with annular gas storage chamber in the second connecting block 7, and the gas storage intracavity is glued there is annular gasbag 71, and gasbag 71 is the latex material, stores up alcohol in the gasbag 71.
Still vertically be equipped with the sliding chamber in the second connecting block 7, sliding chamber upper end and gas storage chamber intercommunication, and breather pipe 45 keeps away from negative pressure generator 43 one end and runs through the 7 lateral walls of second connecting block and communicate with the sliding chamber, the vertical sliding seal of sliding chamber has piston 8, piston 8 below is equipped with spring 73, both ends splice respectively on piston 8 and sliding chamber lateral wall about spring 73, be equipped with the cold air pipe 82 and the steam pipe 81 of L shape on the piston 8, steam pipe 81 top is located cold air pipe 82 top, steam pipe 81 bottom is through pipeline and first chamber 24 intercommunication that admits air. The upper part and the lower part of the piston 8 are both provided with a limiting block 72, and at normal temperature, when the piston 8 is propped against the limiting block 72 on the upper part under the action of a spring 73, the cold air pipe 82 is communicated with the vent pipe 45; when the air bag 71 is expanded and the piston 8 abuts against the lower stopper 72, the hot air pipe 81 communicates with the vent pipe 45.
In addition, on the basis of embodiment 1, the stirring device in this embodiment further includes a plurality of storage units, as shown in fig. 6, the plurality of storage units are distributed along the circumferential direction of the weighing bucket 4, and the plurality of storage units are located at the periphery of the stirring bucket 1, and as shown in fig. 5 and 7, each storage unit includes a storage bucket 6, a suction pipe 61 and an air inlet pipe 63, the air inlet pipe 63 penetrates through the storage bucket 6 and is communicated with the inner cavity of the storage bucket 6, and in the actual use process, a pressure valve may be further installed on the air inlet pipe 63. Thereby when guaranteeing to form the negative pressure in storage vat 6, just steam gets into storage vat 6. 6 top lids of storage vat have closed the lid, inhale the vertical setting of material pipe 61, and inhale material pipe 61 lower extreme and run through the lid, and extend to 6 lower extremes of storage vat, inhale material pipe 61 upper end and negative pressure pipe 44 and keep away from the one end height of weighing vat 4, inhale the welding of material pipe 61 upper end and have first connecting block 62, and inhale material pipe 61 upper end and run through first connecting block 62, and first connecting block 62 is kept away from the one end of inhaling material pipe 61 and the one end that weighing vat 4 was kept away from to second connecting block 7 and is the arcwall face that offsets.
When the stirring device in this embodiment works, firstly, all the air inlet pipes 63 are manually communicated with a storage device where hot air is located after air cooling is performed on molded plastic, the mounting plate 5 is manually rotated, the second connecting block 7 is aligned with one of the first connecting blocks 62, the negative pressure pipe 44 is aligned with the suction pipe 61 of the storage unit where the first connecting block 62 is located, when the negative pressure generator 43 works, raw materials in the storage barrel 6 of the storage unit are sucked out by the suction pipe 61, at the moment, negative pressure is formed in the storage barrel 6, the pressure valve on the air inlet pipe 63 is opened, hot air enters from the air inlet pipes 63, the raw materials in the storage barrel 6 are dried, and meanwhile, the hot air further wraps the raw materials and enters the weighing barrel 4 through the suction pipe and the negative pressure pipe 44.
When hot gas passes through the negative pressure pipe 44, heat is transferred into the air bag 71, so that alcohol in the air bag 71 is quickly evaporated into gas, the air bag 71 is quickly expanded, the piston 8 is pushed downwards, the hot gas pipe 81 is communicated with the vent pipe 45, and the hot gas enters the stirring barrel 1 through the hot gas pipe 81 and the vent pipe 45 to preheat raw materials in the stirring barrel 1. When the raw materials in the weighing barrel 4 meet the requirements, the negative pressure generator 43 is manually closed and the discharge port and the inlet 11 are opened, the raw materials in the weighing barrel 4 fall into the stirring barrel 1, and then the discharge port and the inlet 11 are closed.
Then, the mounting plate 5 is rotated again, the second connecting block 7 and the first connecting block 62 are staggered, the negative pressure generator 43 is turned on again, at the moment, outside cold air is sucked into the negative pressure pipe 44, heat in the air bag 71 is dissipated, the air bag 71 and the piston 8 are reset, the cold air pipe 82 is communicated with the vent pipe 45, the temperature in the weighing barrel 4 is reduced after the cold air enters the weighing barrel 4, the weight sensor 41 is prevented from working under the condition of high temperature for a long time, and therefore the weight sensor 41 is prevented from being damaged. And cold air is discharged from the cold air pipe 82 and cannot enter the stirring barrel 1, so that the temperature in the stirring barrel 1 is prevented from being reduced, and a better preheating effect is kept.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make various changes and modifications without departing from the concept of the present invention, and these should be construed as the scope of protection of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent. The techniques, shapes, and structural parts, which are omitted from the description of the present invention, are all known techniques.
Claims (7)
1. Raw and other materials agitating unit, its characterized in that: the stirring device comprises a stirring barrel, a stirring unit positioned in the stirring barrel and a feeding unit positioned above the stirring barrel, wherein the stirring unit comprises a stirring shaft rotationally connected with the stirring barrel, a driving piece driving the stirring shaft to rotate and a plurality of stirring blades connected to the stirring shaft, and the stirring shaft is vertically arranged; the feeding unit comprises a negative pressure pipe, a weighing barrel and a negative pressure generator communicated with the weighing barrel, the negative pressure pipe is communicated with the weighing barrel, the bottom of the weighing barrel is provided with a weight sensor and a closable discharge hole, and the discharge hole is communicated with the stirring barrel; the negative pressure generator is communicated with a vent pipe, the vent pipe is communicated with the stirring barrel, a first filter screen is fixed on the side wall of the weighing barrel, and the first filter screen is positioned between the weighing barrel and the negative pressure generator; a first air inlet cavity communicated with the air pipe is arranged in the stirring shaft, and a plurality of first through holes communicated with the inner cavity of the stirring barrel are formed in the side wall of the first air inlet cavity; the material storage unit comprises a material storage barrel, a material suction pipe and an air inlet pipe, wherein the material suction pipe and the air inlet pipe are communicated with the material storage barrel; be equipped with in the second connecting block gas storage chamber and with the slip chamber of gas storage chamber intercommunication, breather pipe intercommunication slip chamber and weighing bucket, slip intracavity sliding seal has the piston to be equipped with the spring that both ends were fixed respectively at the slip intracavity wall of piston, the piston seals the breather pipe, and is equipped with cold air pipe and the hot-blast pipe that can communicate with the breather pipe on the piston, hot-blast pipe and first air inlet chamber intercommunication.
2. The raw material stirring apparatus as set forth in claim 1, wherein: the stirring barrel bottom is equipped with the chamber that holds coaxial with the (mixing) shaft, it is connected with the supporting shoe to hold the intracavity rotation, and the diameter of supporting shoe is greater than the diameter of (mixing) shaft, the (mixing) shaft lower extreme runs through and holds the chamber top and fixed with the supporting shoe.
3. The raw material stirring apparatus as set forth in claim 2, wherein: the side wall of the stirring barrel is provided with a second air inlet cavity, the side wall of the second air inlet cavity is provided with a second through hole communicated with the inner cavity of the stirring barrel, a first channel communicated with the first air inlet cavity is transversely arranged on the supporting block, and a second channel communicated with the second air inlet cavity and the first channel is arranged at the bottom of the stirring shaft.
4. The raw material stirring apparatus as set forth in claim 3, wherein: the stirring shaft is vertically provided with a sliding groove, the stirring blades are fixedly provided with sliding blocks connected with the sliding groove in a sliding mode, the inner wall of the stirring barrel is provided with annular guide grooves similar to curve grooves in a cylindrical cam, the number of the guide grooves is the same as that of the stirring blades and corresponds to the stirring blades one to one, one ends, far away from the stirring shaft, of the stirring blades are fixedly provided with guide blocks, and the guide blocks are connected with the guide grooves in a sliding mode.
5. The raw material stirring apparatus as recited in claim 4, wherein: the first through hole is located in the middle of the sliding groove.
6. The raw material stirring apparatus as set forth in claim 1, wherein: the air storage cavity is annular and is positioned on the periphery of the negative pressure pipe.
7. The raw material stirring apparatus as recited in claim 6, wherein: the lower end of the material suction pipe is positioned at the lower part of the material storage barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911208646.8A CN110883963B (en) | 2019-11-30 | 2019-11-30 | Raw material stirring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911208646.8A CN110883963B (en) | 2019-11-30 | 2019-11-30 | Raw material stirring device |
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| Publication Number | Publication Date |
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| CN110883963A CN110883963A (en) | 2020-03-17 |
| CN110883963B true CN110883963B (en) | 2021-05-28 |
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| CN201911208646.8A Active CN110883963B (en) | 2019-11-30 | 2019-11-30 | Raw material stirring device |
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