CN111686632B

CN111686632B - Powder distributor

Info

Publication number: CN111686632B
Application number: CN202010578660.3A
Authority: CN
Inventors: 陆荣华
Original assignee: Anhui Weihong Food Co ltd
Current assignee: Anhui Weihong Food Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-01-12
Anticipated expiration: 2040-06-23
Also published as: CN111686632A

Abstract

The invention discloses a powder distributor, which comprises a flange sleeve, wherein a rotatable feeding cylinder is arranged in the flange sleeve, and a discharging unit is arranged at the end part of the flange sleeve; the discharging unit comprises a first tray body and a second tray body, a plurality of cavities which are the same in number and are uniformly distributed along the circumferential direction are formed in the end faces, close to the first tray body and the second tray body, of the first tray body, any cavity on the first tray body and a cavity on the second tray body can form an overlapping space, and when the second tray body rotates relative to the first tray body, the volume of the overlapping space changes periodically; the relief hole has all been seted up at the center of each cavity on the first disk body, the feed port has all been seted up at the center of each cavity on the second disk body. The material distributor is used for preventing the situation of material blockage by arranging the powder with smaller particles of the milk tea powder at the discharge port during preparation, and meanwhile, the material distributor also plays a buffering role and can inhibit the situation of dust emission.

Description

Powder distributor

Technical Field

The invention relates to the technical field of milk tea stirring and mixing equipment, in particular to a powder distributor.

Background

The milk tea raw material is prepared from milk tea powder or fruit juice, the milk tea powder is a powdery mixture of various substances, the substance powder is required to be mixed by stirring equipment in the raw material production process, and then packaging is carried out, so that the milk tea powder is produced, and the milk tea powder can be mixed with other materials to prepare the finished milk tea in the subsequent milk tea preparation process.

Because the stirring of milk tea powder is gone on to the powder, is different from the stirring of liquid, and it is because the mobility of solid is less than liquid when the ejection of compact, consequently has the risk of putty, and the powder can produce the raise dust at the in-process of stirring simultaneously, also can produce certain raise dust equally in the ejection of compact, though there is anti-blocking device among the prior art, for example the electromagnetic shaker, or screw propulsion structure, these structures can not reach comparatively ideal effect when reply milk tea powder.

Disclosure of Invention

Aiming at the technical defects, the invention aims to provide a powder distributor, which is used for preventing the situation of material blockage by arranging a discharge hole during the preparation of powder with smaller particles, such as milk tea powder, and meanwhile, the distributor also has a buffering effect and can inhibit the situation of dust emission.

In order to solve the technical problems, the invention adopts the following technical scheme:

the invention provides a powder distributor, which is arranged at a discharge port of powder stirring equipment and comprises a flange sleeve communicated with the discharge port of the powder stirring equipment, wherein a rotatable feeding cylinder is arranged in the flange sleeve, and a discharge unit is arranged at the end part of the flange sleeve;

the discharging unit comprises a second disc body which coaxially rotates with the feeding cylinder and a first disc body which is fixed on the flange sleeve, and the first disc body, the second disc body, the flange sleeve and the feeding cylinder are coaxially arranged; dynamic seals are respectively arranged between the feeding cylinder and the flange sleeve and between the first disc body and the second disc body, and static seals are arranged between the second disc body and the feeding cylinder;

the end faces of the first tray body, which are close to the second tray body, are provided with a plurality of cavities which are the same in number and are uniformly distributed along the circumferential direction, any cavity on the first tray body and a cavity on the second tray body can form an overlapping space, and when the second tray body rotates relative to the first tray body, the volume of the overlapping space is changed periodically;

the relief hole has all been seted up at the center of each cavity on the first disk body, the feed port has all been seted up at the center of each cavity on the second disk body.

Preferably, the chamber is a part of a sphere, the volume of the chamber is less than 1/2 of the volume of the corresponding sphere, and two adjacent chambers on the same disc body intersect and form a flow passage which connects the two adjacent chambers together.

Preferably, the center of the first tray body is provided with a positioning hole, and the center of the second tray body is provided with a positioning shaft matched with the positioning hole.

Preferably, the feeding cylinder is rotatably arranged in the flange sleeve through a bearing, a second sealing end cover is arranged at the joint of the feeding cylinder and the flange sleeve, and a felt pad is fixed between the second sealing end cover and the feeding cylinder.

Preferably, the bearing is a double-row tapered roller bearing, the second end cover abuts against an outer ring of the double-row tapered roller bearing, a limit sleeve is fixed on an outer ring of the feeding barrel, one end of an inner ring of the double-row tapered roller bearing abuts against a shaft shoulder of the feeding barrel, and the other end of the inner ring of the double-row tapered roller bearing abuts against the limit sleeve.

Preferably, a sealing groove is formed in the first disc body, a filler is arranged in the sealing groove, and the filler is abutted in the sealing groove through a first sealing end cover.

Preferably, the feeding cylinder is a cylinder body with openings at two ends, and a pair of feeding notches are formed in the side wall of the feeding cylinder.

Preferably, a spline housing coaxial with the feeding cylinder is arranged in the feeding cylinder, and the spline housing is fixed in the feeding cylinder through a plurality of supporting rods.

Preferably, a motor is arranged in the flange sleeve, the motor is fixed in the flange sleeve through a plurality of support rods, and a motor shaft is in driving connection with the spline sleeve.

Preferably, the aperture of the feeding hole of the second disc body gradually increases along the direction away from the chamber.

The invention has the beneficial effects that:

(1) according to the invention, through the relative rotation between the two disc bodies, the chambers in the disc bodies form an overlapping space to generate periodic overlapping, so that the overlapping space generates periodic volume expansion and reduction, and further generates a blowing effect;

(2) according to the invention, through the overlapped space formed between the disc bodies, on one hand, powder enters the smaller overlapped space from the larger stirring space and is discharged through the plurality of discharge holes, and the raised dust can be reduced due to the change of the space; on the other hand, when the powder passes through the overlapped space of the disc body, not only the axial displacement along the discharge hole is generated, but also a part of the powder generates circumferential displacement through the expansion and reduction of the volume of the overlapped space and the existence of the flow channel, so that the axial speed of the powder during discharging is reduced, and the dust during discharging is reduced;

(3) according to the invention, the flow channels are arranged between the adjacent chambers of the same disc body, on one hand, the flow channels are arranged to enable the chambers to be communicated, so that when the overlapping space is expanded and reduced, a part of powder can flow in the circumferential direction, the flow direction of the powder is changed, and the raised dust is reduced; on the other hand, when the overlapped space is expanded and reduced and the air is not enough to compensate the volume change, the solid powder is compressed to generate the impact condition, and the flow channel can generate the overflow effect aiming at the impact condition, so that the disk body can run more stably and smoothly when blown; in addition, the arrangement of the flow channel enables a part of powder to flow in the circumferential direction, namely laminar flow is generated between the inlet and the outlet of the powder, and the laminar flow can promote the powder in the upper layer to enter on one hand, can promote the powder in the lower layer to be discharged on the other hand, and further reduces the risk of material blockage;

(4) the distributor is convenient to mount and dismount in the later period through the structure of the flange, the modification requirement of the existing stirring equipment is simple, and the distributor can be mounted on the stirring equipment for use without great modification.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic sectional view of a powder distributor according to the present invention;

FIG. 2 is an exploded view I of the discharge unit;

FIG. 3 is an exploded view of the discharge unit II;

FIG. 4 is an enlarged view of portion A of FIG. 1;

FIG. 5 is an enlarged view of portion B of FIG. 1;

FIG. 6 is a perspective view of the first tray;

FIG. 7 is a front view of the first tray;

FIG. 8 is a cross-sectional view taken along line C-C of FIG. 7;

FIG. 9 is a perspective view of the second tray;

FIG. 10 is a front view of the second tray;

FIG. 11 is a cross-sectional view taken along line D-D of FIG. 10;

FIG. 12 is a schematic structural view of a feed cylinder;

FIG. 13 is a first simulation diagram of the overlapped space;

FIG. 14 is a second simulation diagram of the overlapped space;

FIG. 15 is a schematic view of the structure of the feed cylinder driven by a motor;

FIG. 16 is a schematic view of the installation of the distributor and the stirring apparatus.

Description of reference numerals:

the device comprises a flange sleeve 1, a feeding barrel 2, a feeding notch 21, a spline sleeve 22, a discharging unit 3, a first disc 31, a sealing groove 311, a positioning hole 312, a second disc 32, a positioning shaft 321, a first sealing end cover 33, a filler 34, a chamber 031, a discharge hole 0311, a feed hole 0312, a 032 flow channel 41, a bearing 42, a second sealing end cover 42, a limiting sleeve 43, a felt pad 44, a motor 5, a support column 51, a spline shaft 6 and a stirring shaft 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

The invention provides a powder distributor, as shown in figure 16, the distributor is arranged at the discharge port of powder stirring equipment, as shown in figure 1, the distributor comprises a flange sleeve 1 communicated with the discharge port of the powder stirring equipment, a rotatable feeding cylinder 2 is arranged in the flange sleeve 1, a discharge unit 3 is arranged at the end part of the flange sleeve 1, wherein the feeding cylinder 2 is a cylinder body with openings at two ends, and a pair of feeding notches 21 (as shown in figure 12) are arranged on the side wall of the feeding cylinder 2;

as shown in fig. 2 and 3, the discharging unit 3 includes a second disc 32 rotating coaxially with the feeding cylinder 1 and a first disc 31 fixed on the flange sleeve 1, and the first disc 31, the second disc 32, the flange sleeve 1 and the feeding cylinder 2 are all arranged coaxially; dynamic sealing is carried out between the feeding cylinder 2 and the flange sleeve 1 and between the first disc body 31 and the second disc body 32, static sealing is carried out between the second disc body 32 and the feeding cylinder 2, the second disc body 32 and the feeding cylinder 2 need to be sealed when being fixed, and as the two are also connected through flanges, for example, sealing gaskets can be arranged at the connecting position of the two for static sealing;

as shown in fig. 6 to 8 and fig. 9 to 11, the end surfaces of the first tray body 31 and the second tray body 32 close to each other are respectively provided with a plurality of chambers 031 which are equal in number and are uniformly distributed along the circumferential direction, in this embodiment, the number of the chambers 031 is 8, the chambers 031 are part of spheres, and the volume of the chambers 031 is smaller than 1/2 of the volume of the corresponding spheres, that is, the chambers 031 are smaller than hemispheres; any one of the chambers 031 of the first tray 31 can form an overlapping space with the chamber 031 of the second tray 32 (that is, any one of the chambers 031 of the second tray 32 can form an overlapping space with the chamber 031 of the first tray 31), when the second tray 32 rotates relative to the first tray 31, the volume of the overlapping space changes periodically, and the periodic change is that the volume changes from large → small → large → small … …, and the periodic change forms expansion and reduction of the volume of the overlapping space, when powder enters the overlapping space, air in the overlapping space is sucked and discharged due to the change of the volume of the overlapping space, so that a blowing effect is generated, and when powder is discharged, an active vibration effect is generated, so that the powder is dredged, and the situation of material blockage is reduced;

the center of each chamber 031 on the first disk body 31 has all seted up relief hole 0311, the center of each chamber 031 on the second disk body 32 has all seted up feed port 0312, the aperture of the feed port 0312 of second disk body 32 increases along the direction of keeping away from chamber 031 gradually, as for the relief hole 0311 on the first disk body 31, its structure is the round hole, also can be the same with the feed port 0312 structure, adopt conical hole, if it adopts conical hole, its flaring needs to be close to chamber 031;

further, as shown in fig. 1, 8 and 11, two adjacent chambers 031 located on the same tray intersect to form a channel 032, where the channel 032 is in the shape of a minor arc, and the channel 032 connects the two adjacent chambers 031 together, so that all the chambers 031 in the same tray are communicated with each other;

for the arrangement of the flow channel 032, on one hand, the flow channel 032 is arranged to enable the chambers 031 to be communicated with each other, when the second disk body 32 rotates circumferentially relative to the first disk body 31, a part of powder can flow circumferentially, the flow direction of the powder is changed, so that a circumferential acting force is added when the powder is discharged axially (i.e. the axial direction of the discharge hole 03111 or the axial direction of the feed cylinder 2), further, the axial speed of the powder during discharging is reduced, the generation of dust emission during discharging can be reduced, meanwhile, when a part of powder flows circumferentially, a laminar flow is generated between the inlet and the outlet of the powder, and the laminar flow can promote the inlet of the powder on the upper layer, promote the outlet of the powder on the lower layer, and further reduce the risk of material blockage;

on the other hand, when the second plate 32 rotates along with the feeding cylinder 2, the overlapping space will generate periodic volume change, which will cause the air in the powder to be discharged and sucked, and further generate the blowing effect of "blowing" the powder, because the second rotary plate 32 rotates along with the feeding cylinder 2, during the rotation process, the periodic volume change is faster, if the air suction and discharge is not enough to compensate the volume change, the compression effect will be generated on the solid powder (the solid will be difficult to compress by gas, and the solid will be difficult to discharge or suck), the collision will be generated easily, even if the air suction and discharge can compensate the volume change, because the rotation of the plate will still drive a part of the powder to flow circumferentially, if no flow channel 032 is provided, the collision will be generated during the rotation process, and then make the operation of disk body unstable, the setting of runner 032 can be aimed at this and produce the overflow effect, forms certain buffering effect for the disk body operates more smoothly for the drum blows the time.

Further, for convenience of explaining the periodic variation of the overlapping space, as shown in fig. 13 and 14, a simplified process is performed, that is, fig. 13 and 14 are schematic diagrams of the alignment of two second discs 32 (and the structure of the second disc 32 is simplified) for respectively representing the rotation of the first disc and the second disc, since the periodic variation of the overlapping space depends on the chamber 031, the description of which disc is used does not affect the periodic variation of the overlapping space; for convenience, a cavity a and a cavity b are respectively selected on the first tray body and the second tray body, and the rotation is carried out according to the arrow direction in the figure, which is as follows:

as shown in fig. 13, the chambers 031 of the first and second trays are corresponding to each other, and the chambers 031 of the two trays are completely overlapped, i.e. the chambers a and b are completely overlapped, and the volume of the overlapped space reaches the maximum (shown by the shaded area in fig. 13), and as the second tray rotates, the chambers a and b are gradually displaced to generate a partial overlap, and the volume of the overlapped space decreases, and when the chambers a and b are displaced to the position shown in fig. 14, the volume of the overlapped space decreases to the minimum (shown by the shaded area in fig. 14), and the flow channel 032 of one of the trays is located at the axis of the feed hole 0312, and when the rotation is continued, the shaded area in fig. 14 increases until reaching the position shown in fig. 13, and finally forms a period.

Because the first tray body 31 and the second tray body 32 rotate relatively and need to be coaxially arranged, in order to facilitate the butt joint of the first tray body 31 and the second tray body 32, a positioning hole 312 is formed in the center of the first tray body 31, and a positioning shaft 321 matched with the positioning hole 312 is arranged in the center of the second tray body 32.

In this embodiment, the feeding cylinder 2 can be driven to rotate by separately arranging a driving mechanism, as shown in fig. 15, a spline housing 22 coaxial with the feeding cylinder 2 is arranged in the feeding cylinder 2, and the spline housing 22 is fixed in the feeding cylinder 2 through a plurality of supporting rods; a motor 5 is arranged in the flange sleeve 1, the motor 5 is fixed in the flange sleeve 1 through a plurality of support columns 51, and a motor shaft is in driving connection with the spline sleeve 22; as shown in fig. 16, for the schematic view of the distributor installed in the stirring device, it is convenient to separately use the motor 5 for driving, the stirring device is slightly modified, and the distributor can be installed independently, so that the structure effect of using the separate motor 5 for driving in fig. 15 is better for the treatment of milk tea powder.

In this embodiment, for dynamic sealing between the feeding cylinder 2 and the flange sleeve 1 and dynamic sealing between the first tray body 31 and the second tray body 32, a felt sealing manner and a packing sealing manner are respectively adopted, which are specifically as follows:

as shown in fig. 4, the feeding cylinder 2 is rotatably arranged in the flange sleeve 1 through a bearing 41, a second sealing end cover 42 is arranged at the joint of the feeding cylinder 2 and the flange sleeve 1, and a felt pad 44 is fixed between the second sealing end cover 42 and the feeding cylinder 2; considering that the feeding barrel 2 has an axial force, the bearing 41 is a double-row tapered roller bearing, the second sealing end cover 42 abuts against an outer ring of the double-row tapered roller bearing, a limiting sleeve 43 is fixed on the outer ring of the feeding barrel 2, one end of an inner ring of the double-row tapered roller bearing abuts against a shaft shoulder of the feeding barrel 2, the other end of the inner ring of the double-row tapered roller bearing abuts against the limiting sleeve 43, and the limiting sleeve 43 is locked on the feeding barrel 2 through a bolt on a side wall;

as shown in fig. 5, a sealing groove 311 is formed on the first disc 31, a filler 34 is disposed in the sealing groove 311, the filler 34 is tightly pressed in the sealing groove 311 by the first sealing end cover 33, the material of the filler 34 is the material in the prior art, and then the packing 34 is used to generate pressing force to form dynamic seal, as can be seen from fig. 5, the packing 34 is sealed on the side, and as the first disc 31 and the second disc 32 rotate relatively, at the overlapping space, the adjacent surfaces of the first tray body 31 and the second tray body 32 are required to be close to each other, because the packing 34 is sealed and friction is generated during fitting, the gap between the adjacent surfaces of the first plate 31 and the second plate 32 is less critical, and on the other hand, the gap may not be too large, for example, 1mm or less, since powder may accumulate in the gap.

When in use, the distributor can be arranged at the discharge port of the stirring equipment according to the mode of figure 16, and valves for controlling powder to enter the flange sleeve 1 are arranged at the front end of the distributor and the discharge port of the stirring equipment in advance so as to control when the powder is discharged; when discharging, the rotation of the feeding cylinder 2 drives the second disc body 32 to rotate relative to the first disc body 31, so that the volume of the overlapped space is changed periodically, a blowing effect is generated, and the condition of material blockage is reduced; for the installation of the feeding cylinder 2, the first disk body 31 and the second disk body 32, flange installation manners can be adopted, that is, as shown in fig. 1, a plurality of circumferential bolts are arranged at the outer edges between the first disk body 31 and the flange sleeve 1 and between the second disk body 32 and the feeding cylinder 2 for installation; for the dynamic sealing mode between the feeding cylinder 2 and the flange sleeve 1 and between the first disk body 31 and the second disk body 32, other sealing modes meeting the conditions can be adopted besides the sealing mode of the embodiment;

when milk tea powder gets into in the flange cover 1, the last port of its accessible feed cylinder 2 and the feed slot opening 21 on the lateral wall get into, feed cylinder 2 is the pivoted simultaneously, consequently also can promote the powder to get into, and the powder gets into the feed port 0312 through the last feed port 0312 of second disk body 32 behind the feed cylinder 2 and gets into overlapping space to discharge through the relief hole 0311 of first disk body 31, thereby realize the discharge of powder, reduce the phenomenon of the jam that the powder produced when the ejection of compact.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A powder distributor is arranged at a discharge port of powder stirring equipment and is characterized by comprising a flange sleeve communicated with the discharge port of the powder stirring equipment, wherein a rotatable feeding cylinder is arranged in the flange sleeve, and a discharge unit is arranged at the end part of the flange sleeve;

the center of each cavity on the first tray body is provided with a discharge hole, and the center of each cavity on the second tray body is provided with a feed hole;

the cavity is a part of a sphere, the volume of the cavity is 1/2 smaller than that of the corresponding sphere, two adjacent cavities on the same disc body are intersected to form a flow passage, and the flow passage connects the two adjacent cavities together.

2. The powder distributor as claimed in claim 1, wherein a positioning hole is formed in the center of the first plate, and a positioning shaft is disposed in the center of the second plate to fit the positioning hole.

3. The powder distributor as claimed in claim 1, wherein the feed cylinder is rotatably disposed in the flange sleeve through a bearing, a second end cap is disposed at the joint of the feed cylinder and the flange sleeve, and a felt pad is fixed between the second end cap and the feed cylinder.

4. The powder distributor according to claim 3, wherein the bearing is a double-row tapered roller bearing, the second end cap abuts against the outer ring of the double-row tapered roller bearing, a limit sleeve is fixed on the outer ring of the feeding barrel, one end of the inner ring of the double-row tapered roller bearing abuts against the shaft shoulder of the feeding barrel, and the other end abuts against the limit sleeve.

5. The powder distributor according to claim 1, wherein the first plate has a sealing groove, and a filler is disposed in the sealing groove and supported by the first sealing end cap in the sealing groove.

6. The powder distributor as claimed in claim 1, wherein the feed cylinder is a cylinder with openings at both ends, and a pair of feed notches are formed on the side wall of the feed cylinder.

7. The powder distributor as claimed in claim 6, wherein the feeding cylinder is provided with a spline housing coaxial with the feeding cylinder, and the spline housing is fixed in the feeding cylinder by a plurality of support rods.

8. The powder distributor of claim 7, wherein the flange housing has a motor mounted therein, the motor being secured to the flange housing by a plurality of support rods, the motor shaft being drivingly connected to the spline housing.

9. The powder distributor of claim 1, wherein the apertures of the feed holes of the second plate increase in size in a direction away from the chamber.