CN117228238B - Screw feeder and powder manufacturing system - Google Patents
Screw feeder and powder manufacturing system Download PDFInfo
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- CN117228238B CN117228238B CN202311284755.4A CN202311284755A CN117228238B CN 117228238 B CN117228238 B CN 117228238B CN 202311284755 A CN202311284755 A CN 202311284755A CN 117228238 B CN117228238 B CN 117228238B
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- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 238000007599 discharging Methods 0.000 claims abstract description 8
- 238000002955 isolation Methods 0.000 claims description 34
- 238000005520 cutting process Methods 0.000 claims description 20
- 238000007872 degassing Methods 0.000 claims description 17
- 230000000670 limiting effect Effects 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 10
- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 26
- 230000000903 blocking effect Effects 0.000 abstract description 6
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- 230000036961 partial effect Effects 0.000 description 2
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- 229920006362 Teflon® Polymers 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
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- 239000004568 cement Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
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- 239000004482 other powder Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- -1 polyoxymethylene Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The present disclosure provides a screw feeder and powder manufacturing system. The screw feeder comprises a screw propulsion device, a hopper and a vibration device, wherein a discharge hole of the hopper is communicated with a feed inlet of the screw propulsion device, the vibration device comprises a vibration plate, a connecting shaft and a vibration mechanism, the vibration plate is arranged in the hopper and is inclined to the discharging direction of the hopper, and a plurality of blanking through holes are formed in the vibration plate at intervals. The two connecting shafts are arranged at intervals and respectively penetrate through the hopper, and the first ends of the two connecting shafts are respectively connected with the vibrating plate. The vibrating mechanism is positioned at the outer side of the hopper, and the power output end of the vibrating mechanism is connected to the second ends of the two connecting shafts and is used for driving the vibrating plate to vibrate in a direction oblique to the blanking direction. The vibrating plate vibrates and cuts powder, so that arching of the powder during blanking is restrained, the arch breaking effect of the vibrating device is improved, and hopper blocking is restrained.
Description
Technical Field
The disclosure relates to the technical field of powder manufacturing systems, in particular to a screw feeder and a powder manufacturing system.
Background
The screw conveyer is a machine which uses a motor to drive a screw to rotate and push materials to realize the conveying purpose. The horizontal conveying device can horizontally, obliquely or vertically convey and has the advantages of simple structure, small cross section area, good sealing performance, convenient operation, easy maintenance, convenient sealing and transportation and the like. Screw conveyors are classified into shaft screw conveyors and shaftless screw conveyors in conveying form, wherein the shaft screw conveyors are suitable for non-sticky dry powder materials and small particle materials, such as cement, fly ash, lime, grain and other powder materials. The working principle of the screw conveyor is that the rotating screw blade pushes the material to be conveyed by the screw conveyor, so that the force for preventing the material from rotating together with the screw conveyor blade is the weight of the material and the friction resistance of the screw conveyor shell to the material.
In the related art, a screw conveyor generally comprises a screw propulsion device and a hopper, wherein the hopper is arranged at a feed inlet of the screw propulsion device, and when the screw conveyor conveys, powder is poured into the hopper, so that the powder falls into the screw propulsion device under the action of gravity. However, the powder tends to arch during the fall, so that the powder does not fall into the screw, i.e. the discharge opening of the hopper is blocked.
In order to solve the technical problem, chinese patent CN 211254114U-a spiral feeder discloses that a vibrating motor is arranged on the outer wall of a hopper, and the hopper is vibrated by the vibrating motor to enable the inner wall of the hopper to vibrate powder so as to achieve the effect of arch breaking, thereby solving the problem of material blockage. Chinese patent CN116592626 a-a spiral feeding device for rotary kiln, discloses that a vibrator is installed on the outer wall of the feeding pipe, and the feeding pipe is vibrated by the vibrator, so that the inner wall of the feeding pipe vibrates powder to reach the arch breaking effect, and further solve the problem of blocking.
A vibrating motor is arranged on a shell of the spiral propulsion device to ensure smooth blanking, such as a CN 116554894A-spiral feeder with water seal for coke oven coal charging has different effects and is not repeated.
The chinese patent CN112757996B discloses a PTA carrier for discharging materials from a screw conveyor, which uses the geometrical center of the round hole in the middle of the screw blade not coincident with the rotation center of the screw blade, so that the center of gravity of the screw blade is eccentric, and the screw blade generates bending vibration when rotating to drive the elastic baffle to vibrate, the upper end of the elastic baffle stretches into the PTA4, and the vibration of the upper end of the elastic baffle acts a force on the PTA4 in the tank body, thus breaking the arch. It is clear from this that the above patent is different from the vibration motor in that the vibration generated by the deflection of the blades during rotation breaks the arch, and the vibration motor is omitted.
It should be noted that after the due job fulfills the creative searching and retrieving of the scheme, the following technical documents for reference are provided:
1. CN 110900782A-a spiral extrusion feeding device of a ceramic clay 3D printer;
2. CN 110963318A-a spiral feeder capable of meeting various use requirements;
3. CN 219057274U-a hanging type spiral arch breaking rotary vibration feeder;
4. CN 212711267U-a screw conveyor for feed production.
In summary, the technical solutions disclosed in the above related art documents are all to break the arch by generating vibration, but the efficiency of vibration arch breaking is low, so that the screw conveyor still has a large risk of blocking.
Disclosure of Invention
The purpose of the present disclosure is to overcome the shortcomings in the prior art and to provide a screw feeder and powder manufacturing system that further reduce the risk of plugging.
The aim of the disclosure is achieved by the following technical scheme:
The utility model provides a screw feeder, includes screw propulsion device, hopper and vibrating device, the discharge gate of hopper with screw propulsion device's feed inlet is linked together, vibrating device includes:
The vibrating plate is arranged in the hopper and is inclined to the discharging direction of the hopper, and a plurality of blanking through holes are formed in the vibrating plate at intervals;
the two connecting shafts are arranged at intervals and respectively penetrate through the hopper, and the first ends of the two connecting shafts are respectively connected with the vibrating plate; and
And the power output end of the vibration mechanism is connected to the second ends of the two connecting shafts and is used for driving the vibration plate to vibrate in a direction inclined to the blanking direction.
In one embodiment, the number of the vibrating devices is a plurality, and the vibrating plates of the plurality of the vibrating devices are circumferentially arranged along the circumference of the hopper.
In one embodiment, the vibration mechanism of each vibration device and the vibration plate of each vibration device are one, and the vibration mechanism of each vibration device is arranged in one-to-one correspondence with the vibration plate.
In one embodiment, two adjacent vibration plates are spaced apart.
In one embodiment, a plurality of blanking gaps are formed at the edge of the vibrating plate.
In one embodiment, the vibration plate is arc-shaped, and the vibration plate extends along the inner wall of the hopper in the circumferential direction of the hopper.
In one embodiment, the vibration device further comprises two vibration isolation assemblies, the two vibration isolation assemblies are fixedly sleeved on the two connecting shafts in one-to-one correspondence, the hopper is provided with a plurality of position avoidance holes, and the two vibration isolation assemblies are fixedly sleeved in the two position avoidance holes in one-to-one correspondence so as to isolate the connecting shafts from the hopper.
In one embodiment, the vibration isolation assembly includes:
the clamping piece is fixedly connected to the hopper, one end of the clamping piece is sleeved in the avoidance hole, and an annular sealing surface is formed on the inner side of the clamping piece; and
The vibration isolation rubber sleeve is fixedly sleeved on the connecting shaft, and the peripheral edge of the vibration isolation rubber sleeve is abutted to the annular sealing surface.
In one embodiment, the vibration device further comprises two clamping washers, the two clamping washers are sleeved on the connecting shaft, the vibration isolation rubber sleeve is clamped between the two clamping washers, and one clamping washer is abutted with the power output end of the vibration mechanism;
one end of the connecting shaft adjacent to the vibrating plate is convexly provided with a limiting part, the other clamping washer is abutted to the limiting part, and a gap is reserved between the clamping washer abutted to the limiting part and the clamping piece.
In one embodiment, the vibration device further comprises two threaded fasteners, the two threaded fasteners and the two connecting shafts are arranged in one-to-one correspondence, a threaded hole is formed in one end, adjacent to the vibration plate, of the connecting shaft, the threaded fasteners penetrate through the vibration plate, the threaded fasteners are further connected into the threaded holes in a threaded mode, one end of each threaded fastener is further abutted to one side face, deviating from the connecting shaft, of the vibration plate, and the vibration plate is fixedly connected with the connecting shaft through the threaded fasteners.
In one embodiment, the vibration device further comprises two welding gaskets, the two welding gaskets are sleeved with the two threaded fasteners in a one-to-one correspondence mode, and the welding gaskets are respectively welded with one end of the threaded fasteners and the vibration plate.
In one embodiment, a degassing channel is formed in the screw propulsion device, and the degassing channel is used for communicating with the outside.
In one embodiment, the auger apparatus includes an auger assembly within which the degassing channel is formed and a filter assembly disposed within the degassing channel.
A powder manufacturing system comprising a screw feeder according to any of the above embodiments.
Compared with the prior art, the method has at least the following advantages:
The power output end of the vibrating mechanism is connected to the two connecting shafts for vibration, and the two connecting shafts are connected to the vibrating plate, so that the connecting shafts can transmit the vibration of the vibrating mechanism to the vibrating plate, and the vibrating plate is only fixed on the connecting shafts for transmitting the vibration, so that interference of a non-vibrating structure to the vibrating plate is avoided, the vibrating effect of the vibrating plate is improved, the arch breaking effect is higher, and the blocking preventing effect is better. The vibration plate vibrates in a direction inclined to the blanking direction, so that the edge of the vibration plate at the blanking through hole can cut powder. Therefore, the vibrating mechanism drives the vibrating plate to vibrate in the direction inclined to the blanking direction, so that the vibrating plate vibrates and cuts powder simultaneously, arching of the powder in the blanking process is greatly restrained, the arch breaking effect of the vibrating device is greatly improved, and the problem of hopper blocking is well restrained.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present disclosure and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic view of a screw feeder according to an embodiment;
FIG. 2 is a schematic view of a part of the screw feeder shown in FIG. 1;
FIG. 3 is a schematic view of a further partial construction of the screw feeder of FIG. 1;
FIG. 4 is a cross-sectional view of the screw feeder of FIG. 3 taken along line A-A;
FIG. 5 is an enlarged schematic view of the screw feeder at B of FIG. 4;
FIG. 6 is a schematic view showing the structure of a vibrating plate of a screw feeder according to another embodiment;
fig. 7 is an enlarged schematic view of the vibration plate at C shown in fig. 6;
FIG. 8 is a schematic view of yet another partial construction of the screw feeder of FIG. 1;
FIG. 9 is a cross-sectional view of the screw feeder of FIG. 8 taken along line D-D;
Fig. 10 is an enlarged schematic view of the screw feeder shown in fig. 9 at E.
Detailed Description
In order that the disclosure may be understood, a more complete description of the disclosure will be rendered by reference to the appended drawings. Preferred embodiments of the present disclosure are shown in the drawings. This disclosure may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used in the description of the disclosure herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure.
In order to better understand the technical scheme and beneficial effects of the present disclosure, the following further details are described in conjunction with specific embodiments:
as shown in fig. 1 to 4, the screw feeder 10 of an embodiment includes a screw propulsion device 100, a hopper 200 and a vibration device 300, wherein a discharge port of the hopper 200 is communicated with a feed port of the screw propulsion device 100, the vibration device 300 includes a vibration plate 310, a connecting shaft 320 and a vibration mechanism 330, the vibration plate 310 is disposed in the hopper 200, the vibration plate 310 is inclined to a feeding direction of the hopper 200, and the vibration plate 310 is provided with a plurality of blanking through holes 311 disposed at intervals. The two connecting shafts 320 are disposed at intervals and respectively pass through the hopper 200, and first ends of the two connecting shafts 320 are respectively connected with the vibration plate 310. The vibration mechanism 330 is located at the outer side of the hopper 200, and the power output end of the vibration mechanism 330 is connected to the second ends of the two connecting shafts 320, and is used for driving the vibration plate 310 to vibrate in a direction inclined to the blanking direction, so as to drive the blanking through hole 311 of the vibration plate 310 to cut powder.
As shown in fig. 4, in the present embodiment, when the screw feeder 10 is operated, powder material enters the hopper 200 from the upper end of the hopper 200, the powder material is dropped by gravity, and the vibration plate 310 vibrates the powder material, and since the vibration plate 310 vibrates in a direction inclined to the discharging direction, the edge of the vibration plate 310 at the cutting through hole 311 can cut the powder in the hopper 200. It is understood that the vibration mechanism 330 may be a vibration motor, a pneumatic piston vibrator, an eccentric wheel mechanism, an eccentric mass mechanism, an electromagnetic vibrator mechanism, a piezoelectric ceramic mechanism, or other vibration mechanisms 330 that are currently available, and the present disclosure is not limited to the specific structure of the vibration mechanism 330.
The above-mentioned screw feeder 10, the power take off end of vibrating mechanism 330 is connected in two connecting axle 320 vibrations, and two connecting axles 320 are connected in vibrating plate 310 for connecting axle 320 transmits vibrating mechanism 330's vibration to vibrating plate 310, because vibrating plate 310 is only fixed on transmitting vibrating plate's connecting axle 320, avoided the interference of non-vibrating structure to vibrating plate 310, improved vibrating plate 310's vibration effect, make broken arch effect higher, prevent that the material effect is better. Since the vibration plate 310 vibrates in a direction inclined to the discharging direction, an edge of the vibration plate 310 at the blanking through hole 311 can cut the powder. In this way, the vibration mechanism 330 drives the vibration plate 310 to vibrate in a direction inclined to the blanking direction, so that the vibration plate 310 vibrates and cuts powder at the same time, arching of the powder in the blanking process is greatly restrained, the arch breaking effect of the vibration device 300 is greatly improved, and the problem of blockage of the hopper 200 is well restrained.
It will be appreciated that, as shown in fig. 2, in the above-mentioned vibration plate 310, the first cutting edge 312 is formed between the hole wall of the blanking through hole 311 of the vibration plate 310 and the inner side surface of the vibration plate 310, and the first cutting edge 312 is used for cutting powder to suppress the problem of powder arching.
As shown in fig. 1, the screw propulsion device 100 is disposed to extend vertically.
As shown in fig. 2, in one embodiment, the number of vibration devices 300 is plural, and the vibration plates 310 of the plurality of vibration devices 300 are circumferentially arranged along the hopper 200. In the present embodiment, the vibration plates 310 of the plurality of vibration devices 300 break the arch of the powder, improving the arch breaking effect.
As shown in fig. 2, in one embodiment, the vibration mechanism 330 of each vibration device 300 and the vibration plate of each vibration device 300 are all one, and the vibration mechanism 330 of each vibration device 300 is arranged in one-to-one correspondence with the vibration plate 330, so that each vibration mechanism 330 drives one vibration plate 330 to vibrate, thereby improving the vibration effect of each vibration plate 330 and further improving the arch breaking effect.
As shown in fig. 2, in one embodiment, two adjacent vibrating plates 310 are arranged at intervals, so that each vibrating plate 310 is prevented from being scratched to the adjacent vibrating plate 310 during vibration, and further, the surface layer of the vibrating plate 310 is prevented from falling off, and further, dust pollution caused by chips generated by the vibrating plate 310 is prevented.
As shown in fig. 2, in one embodiment, a plurality of blanking gaps 313 are formed at the edge of the vibration plate 310. In this embodiment, when the vibration plate 310 vibrates in a direction inclined to the blanking direction, the edge of the vibration plate 310 at the blanking notch 313 also cuts the powder, thereby improving the arch breaking effect of the vibration plate 310.
It will be appreciated that, as shown in fig. 2, in the above-mentioned vibration plate 310, the second cutting edge 314 is formed between the inner wall of the blanking gap 313 of the vibration plate 310 and the inner side surface of the vibration plate 310, and the second cutting edge 314 is used for cutting powder to suppress the problem of powder arching.
As shown in fig. 2, in one of the embodiments, the vibration plate 310 is arc-shaped, and the vibration plate 310 is extended along the inner wall of the hopper 200 in the circumferential direction of the hopper 200, so that the vibration plate 310 is adapted to the outer shape of the hopper 200, and the space surrounded by the vibration plates 310 of the plurality of vibration devices 300 is increased. Further, a gap exists between the vibration plate 310 and the hopper 200 to avoid interference of the vibration 310 with the hopper 200 when vibrating.
As shown in fig. 6 and 7, in another embodiment, a plurality of cutting blades 310a are formed by bending left and right edges of the vibration plate 310, respectively, the plurality of cutting blades 310a are disposed at intervals and face a space surrounded by the vibration plate 310 of the plurality of vibration devices 300, and each cutting blade 310a has a cutting edge 315. In this embodiment, the cutting edge 315 of each cut piece will cut the powder as it falls, further suppressing the problems of powder arching and agglomerating, and further suppressing the problem of plugging.
As shown in fig. 7, further, each cutting blade 310a has two cutting edges 315, and the two cutting edges 315 have an included angle therebetween and form a tip 316. In this embodiment, the blade tip 316 breaks the powder during the falling process of the powder to prevent the powder from arching and agglomerating, and further to prevent the powder from clogging.
As shown in fig. 4 and 5, in one embodiment, the vibration device 300 further includes two vibration isolation assemblies 340, the two vibration isolation assemblies 340 are fixedly sleeved on the two connecting shafts 320 in a one-to-one correspondence manner, the hopper 200 is provided with a plurality of avoidance holes 201, and the two vibration isolation assemblies 340 are fixedly sleeved in the two avoidance holes 201 in a one-to-one correspondence manner so as to isolate the connecting shafts 320 from the hopper 200. In this embodiment, the vibration isolation assembly 340 has an elastic structure, and the vibration isolation assembly 340 isolates the connection shaft 320 from the hopper 200, so that the vibration mechanism 330 drives the vibration plate 310 to vibrate better, and meanwhile, the vibration isolation assembly 340 eliminates the gap between the hopper 200 and the connection shaft 320, thereby inhibiting the problem of dust leakage. In addition, since the vibration isolation assembly 340 has elasticity, the connecting shaft 320 can swing when vibrating, so that the connecting shaft 320 drives the vibrating plate 310 to swing, the vibrating plate 310 cuts powder along a plurality of directions, the blanking effect of the vibrating plate 310 at the blanking through hole 311 is improved, the arch breaking effect of the vibrating plate 310 is improved, and the occurrence rate of blocking is further reduced.
As shown in fig. 5, in one embodiment, the vibration isolation assembly 340 includes a clamping member 341 and a vibration isolation rubber sleeve 342, the clamping member 341 is fixedly connected to the hopper 200, one end of the clamping member 341 is sleeved in the avoidance hole 201, an annular sealing surface 3411 is formed on the inner side of the clamping member 341, the vibration isolation rubber sleeve 342 is fixedly sleeved on the connecting shaft 320, and the peripheral edge of the vibration isolation rubber sleeve 342 is abutted against the annular sealing surface 3411. In this embodiment, the vibration isolation rubber sleeve 342 has elasticity, so that the vibration isolation rubber sleeve 342 seals the gap between the connecting shaft 320 and the clamping piece 341, thereby avoiding the problem of powder leakage, and the connecting shaft 320 can swing when vibrating, so that the connecting shaft 320 drives the vibrating plate 310 to swing, the vibrating plate 310 cuts the powder along multiple directions, and the blanking effect of the vibrating plate 310 at the blanking through hole 311 is improved. It is understood that the vibration isolation rubber sleeve 342 may be a silicone member, a rubber member, or other resilient sealing structure as is known.
In one embodiment, as shown in fig. 5, the vibration isolation assembly 340 further includes two clamping washers 343, the two clamping washers 343 are both sleeved on the connecting shaft 320, and the vibration isolation rubber sleeve 342 is further clamped between the two clamping washers 343, wherein one clamping washer 343 abuts against the power output end of the vibration mechanism 330. One end of the connecting shaft 320 adjacent to the vibration plate 310 is convexly provided with a limiting part 321, the other clamping washer 343 is abutted to the limiting part 321, and a gap is reserved between the clamping washer 343 and the clamping piece 341 which are abutted to the limiting part 321, so that vibration is prevented from being transmitted to the hopper 200 through the clamping washer 343 and the clamping piece 341 in sequence, and the vibration isolation effect loss of the vibration isolation assembly 340 is avoided. In the present embodiment, the vibration isolation rubber cover 342 is clamped by two clamping washers 343 to fix the vibration isolation rubber cover 342 to the connection shaft 320.
In one embodiment, the clamp washer 343 is a highly wear resistant material such as polyoxymethylene, teflon or polyetheretherketone. In this embodiment, since the clamping washer 343 is made of a high wear-resistant material, powder pollution caused by abrasion and slag falling of the clamping washer 343 is avoided, and the quality of the powder is ensured.
As shown in fig. 4 and 5, the vibration device 300 further includes two threaded fasteners 350, the two threaded fasteners 350 are disposed in one-to-one correspondence with the two connecting shafts 320, a threaded hole 3201 is formed at one end of the connecting shaft 320 adjacent to the vibration plate 310, the threaded fasteners 350 are disposed through the vibration plate 310, the threaded fasteners 350 are further screwed into the threaded holes 3201, one end of each threaded fastener 350 is further abutted against a side surface of the vibration plate 310 facing away from the connecting shaft 320, so that the threaded fasteners 350 fixedly connect the vibration plate 310 with the connecting shaft 320.
Further, as shown in fig. 5, the threaded fastener 350 is also welded to the vibration plate 310 to prevent the threaded fastener 350 from loosening when vibrated.
As shown in fig. 4 and 5, in one embodiment, the vibration device 300 further includes two welding gaskets 360, the two welding gaskets 360 are sleeved on the two threaded fasteners 350 in a one-to-one correspondence manner, the welding gaskets 360 are respectively welded with one end of the threaded fasteners 350 and the vibration plate 310, so that the threaded fasteners 350 are welded with the vibration plate 310 through the welding gaskets 324, loosening of the threaded fasteners 350 is avoided, meanwhile, the stress area of the vibration plate 310 is increased, and the connection stability of the vibration plate 310 and the threaded fasteners 350 is improved.
As shown in fig. 8 to 10, in one of the embodiments, a degassing passage 101 is formed in the screw propulsion device 100, the degassing passage 101 being for communication with the outside, and a degassing passage 121 being for forming a negative pressure. In this embodiment, since the degassing channel 101 is used for communication with the outside, the degassing channel 101 can discharge the gas in the hopper 200 and the screw propulsion device 100, thereby reducing the volume of the powder and being more beneficial to powder discharging.
As shown in fig. 10, in one embodiment, the screw propulsion device 100 includes a screw propulsion assembly 110, a degassing passage 101 is formed in the screw propulsion assembly 110, and a filter assembly 120 is provided in the degassing passage 101 to restrain powder from being discharged to the outside through the degassing passage 101.
As shown in fig. 10, in one embodiment, the filter assembly 120 includes two holders 121 fixedly connected to the degassing channel 101 and a filter screen 122 disposed in the degassing channel 101 and sandwiched between the two holders 121. In the present embodiment, the column filter 122 is held by the two holders 121, and the positional stability of the filter 122 is improved.
In one embodiment, the vibration mechanism 330 of the vibration device 300 vibrates in a gap-like manner to reduce the energy consumption of the vibration device 300. Of course, in another embodiment, the vibration mechanism 330 of the vibration device 300 can also continuously vibrate, so that the vibration effect is better.
In one embodiment, the vibration mechanism 330 of the plurality of vibration devices 300 vibrates simultaneously, so that the vibration effect is better. Further, the vibration mechanisms 330 of the plurality of vibration devices 300 vibrate simultaneously, and each vibration mechanism 330 vibrates intermittently or continuously.
In one embodiment, the vibration device 300 is operated with a gap, and the vibration mechanisms 330 of the plurality of vibration devices 300 sequentially vibrate circularly in the circumferential direction of the hopper 200 to reduce power consumption and improve the arch breaking effect. It will be appreciated that one or more vibration mechanisms 330 may be vibrating when the screw feeder 10 is in operation.
It is necessary that the vibration mechanism 330 of the plurality of vibration devices 300 is intermittently vibrated or continuously vibrated and the vibration mechanism 330 of the plurality of vibration devices 300 is simultaneously vibrated or sequentially vibrated, and may be adjusted according to the properties of the powder.
The present application also provides a powder manufacturing system comprising the screw feeder 10 of any of the above embodiments.
Compared with the prior art, the method has at least the following advantages:
the power output end of the vibration mechanism 330 is connected to the two connecting shafts 320 for vibration, and the two connecting shafts 320 are connected to the vibration plate 310, so that the connecting shafts 320 transmit the vibration of the vibration mechanism 330 to the vibration plate 310, and as the vibration plate 310 is only fixed on the connecting shafts 320 for transmitting the vibration, the interference of a non-vibration structure to the vibration plate 310 is avoided, the vibration effect of the vibration plate 310 is improved, the arch breaking effect is higher, and the anti-blocking effect is better. Since the vibration plate 310 vibrates in a direction inclined to the discharging direction, an edge of the vibration plate 310 at the blanking through hole 311 can cut the powder. In this way, the vibration mechanism 330 drives the vibration plate 310 to vibrate in a direction inclined to the blanking direction, so that the vibration plate 310 vibrates and cuts powder at the same time, arching of the powder in the blanking process is greatly restrained, the arch breaking effect of the vibration device 300 is greatly improved, and the problem of blockage of the hopper 200 is well restrained.
The foregoing examples represent only a few embodiments of the present disclosure, which are described in more detail and detail, but are not to be construed as limiting the scope of the disclosure. It should be noted that variations and modifications can be made by those skilled in the art without departing from the spirit of the disclosure, which are within the scope of the disclosure. Accordingly, the scope of protection of the present disclosure should be determined by the following claims.
Claims (13)
1. The screw feeder comprises a screw propulsion device, a hopper and a vibration device, wherein a discharge hole of the hopper is communicated with a feed hole of the screw propulsion device,
The vibration device includes:
The vibrating plate is arranged in the hopper and is inclined to the discharging direction of the hopper, and a plurality of blanking through holes are formed in the vibrating plate at intervals;
the two connecting shafts are arranged at intervals and respectively penetrate through the hopper, and the first ends of the two connecting shafts are respectively connected with the vibrating plate; and
The power output end of the vibration mechanism is connected to the second ends of the two connecting shafts and is used for driving the vibration plate to vibrate in a direction inclined to the blanking direction;
The vibrating plates of the vibrating devices are circumferentially arranged along the circumference of the hopper; the left edge and the right edge of the vibrating plate are respectively bent to form a plurality of cutting blades, the plurality of cutting blades are arranged at intervals and face to a space surrounded by the vibrating plate of the vibrating device, each cutting blade is provided with two cutting edges, and an included angle is formed between the two cutting edges to form a cutter point.
2. The screw feeder according to claim 1, wherein the vibration mechanism of each vibration device and the vibration plate of each vibration device are one, and the vibration mechanism of each vibration device is arranged in one-to-one correspondence with the vibration plate.
3. A screw feeder according to claim 1, wherein adjacent two of said vibrating plates are spaced apart.
4. A screw feeder according to claim 3, wherein a plurality of blanking notches are provided at the edge of the vibrating plate.
5. The screw feeder according to claim 1, wherein the vibration plate is arc-shaped, and the vibration plate is provided to extend along an inner wall of the hopper in a circumferential direction of the hopper.
6. The screw feeder of claim 1, wherein the vibration device further comprises two vibration isolation assemblies, the two vibration isolation assemblies are fixedly sleeved on the two connecting shafts in a one-to-one correspondence, the hopper is provided with a plurality of avoidance holes, and the two vibration isolation assemblies are fixedly sleeved in the two avoidance holes in a one-to-one correspondence so as to isolate the connecting shafts from the hopper.
7. The screw feeder of claim 6, wherein the vibration isolation assembly comprises:
the clamping piece is fixedly connected to the hopper, one end of the clamping piece is sleeved in the avoidance hole, and an annular sealing surface is formed on the inner side of the clamping piece; and
The vibration isolation rubber sleeve is fixedly sleeved on the connecting shaft, and the peripheral edge of the vibration isolation rubber sleeve is abutted to the annular sealing surface.
8. The screw feeder of claim 7, wherein the vibration device further comprises two clamping washers, the two clamping washers are sleeved on the connecting shaft, the vibration isolation rubber sleeve is further clamped between the two clamping washers, and one clamping washer is abutted with the power output end of the vibration mechanism;
one end of the connecting shaft adjacent to the vibrating plate is convexly provided with a limiting part, the other clamping washer is abutted to the limiting part, and a gap is reserved between the clamping washer abutted to the limiting part and the clamping piece.
9. The screw feeder according to claim 1, wherein the vibration device further comprises two threaded fasteners, the two threaded fasteners are arranged in one-to-one correspondence with the two connecting shafts, a threaded hole is formed in one end of each connecting shaft adjacent to the vibration plate, the threaded fasteners penetrate through the vibration plate, the threaded fasteners are further connected into the threaded holes in a threaded manner, one end of each threaded fastener is further abutted to one side surface, deviating from the connecting shaft, of the vibration plate, and the threaded fasteners are used for fixedly connecting the vibration plate with the connecting shaft.
10. The screw feeder of claim 9, wherein the vibration device further comprises two welding pads, the two welding pads are sleeved on the two threaded fasteners in a one-to-one correspondence, and the welding pads are respectively welded with one end of the threaded fasteners and the vibration plate.
11. Screw feeder according to claim 1, characterized in that the screw propulsion device has a degassing channel formed therein for communication with the outside.
12. The screw feeder of claim 11, wherein the screw propulsion device comprises a screw propulsion assembly and a filter assembly, the degassing channel being formed within the screw propulsion assembly, the filter assembly being disposed within the degassing channel.
13. A powder manufacturing system comprising the screw feeder according to any one of claims 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311284755.4A CN117228238B (en) | 2023-09-28 | 2023-09-28 | Screw feeder and powder manufacturing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311284755.4A CN117228238B (en) | 2023-09-28 | 2023-09-28 | Screw feeder and powder manufacturing system |
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| CN117228238A CN117228238A (en) | 2023-12-15 |
| CN117228238B true CN117228238B (en) | 2024-06-21 |
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| CN202311284755.4A Active CN117228238B (en) | 2023-09-28 | 2023-09-28 | Screw feeder and powder manufacturing system |
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| CN (1) | CN117228238B (en) |
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| JPH0741082A (en) * | 1993-07-20 | 1995-02-10 | Toyo Hightech Kk | Device for feeding powder for powder densification |
| CN1315702C (en) * | 2004-11-30 | 2007-05-16 | 江苏瑰宝集团有限公司 | Material feeding screw mechaism for dry pelletizing machine |
| CN2858566Y (en) * | 2005-12-01 | 2007-01-17 | 鹤壁市煤化机械厂 | Arch-breaking blocking-proof type vibration hopper |
| CN201325737Y (en) * | 2008-11-20 | 2009-10-14 | 鹤壁市煤化机械有限责任公司 | Belt feeder |
| KR102113821B1 (en) * | 2018-09-20 | 2020-05-21 | 주식회사 진영정공 | Powder supply valve and powder providing device |
| CN212075390U (en) * | 2019-12-31 | 2020-12-04 | 蔚林新材料科技股份有限公司 | Vacuum spiral conveying device |
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| CN207242747U (en) * | 2017-09-29 | 2018-04-17 | 安徽沙丰新材料有限公司 | A kind of powder degassing conveying device |
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| Publication number | Publication date |
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| CN117228238A (en) | 2023-12-15 |
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