CN215959398U - Ground powder screening device, coffee machine and tea extraction machine - Google Patents
Ground powder screening device, coffee machine and tea extraction machine Download PDFInfo
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- CN215959398U CN215959398U CN202120956234.9U CN202120956234U CN215959398U CN 215959398 U CN215959398 U CN 215959398U CN 202120956234 U CN202120956234 U CN 202120956234U CN 215959398 U CN215959398 U CN 215959398U
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Abstract
The utility model discloses a grinding powder screening device, a coffee machine and a tea extraction machine, wherein the grinding powder screening device comprises: a powder falling cavity; the powder screening assemblies are used for screening powder with different thicknesses, are arranged along the vertical direction, are movably arranged and are switched to move below the powder falling cavity; and the driving mechanism is connected with the powder sieving assembly and drives the powder sieving assembly to shake. The utility model can match different extracted substances by switching the plurality of powder screening components, thereby screening correspondingly generated ultrafine powder or realizing other screening requirements. Thereby improving the uniformity of the ground powder, reducing blockage and improving the taste and the appearance of the extract.
Description
Technical Field
The utility model relates to a ground powder screening device, a coffee machine and a tea extraction machine.
Background
In the prior art, a grinding structure of a full-automatic coffee machine or a tea extraction machine cannot be completely compatible with grinding of tea and coffee. Moreover, even if coffee is simply ground or tea is simply ground, the grinding degree is not uniform enough due to different types of tea or coffee, so that ultrafine particles are generated, the risk of blockage is caused in the extraction steps of tea and coffee, and the tea soup and the coffee liquid are turbid after extraction, and the taste is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problems that a grinding device in the prior art cannot adapt to different types of extracted substances, the grinding degree is not uniform, ultrafine particles are easy to generate to cause blockage, and the taste and the appearance are influenced.
The utility model solves the technical problems through the following technical scheme:
a grinding powder screening device characterized by comprising:
a powder falling cavity;
the powder screening assemblies are used for screening powder with different thicknesses, are arranged along the vertical direction, are movably arranged and are switched to move below the powder falling cavity;
and the driving mechanism is connected with the powder sieving assembly and drives the powder sieving assembly to shake.
Different extracts by the thing can be matchd in this scheme through the switching of a plurality of sieve powder subassemblies to the sieve removes the superfine powder that corresponds production. The required powder thickness can be accurately obtained through the powder sieving assemblies with different thicknesses, and the method comprises the steps of removing fine powder to obtain coarse powder; removing the coarse powder to obtain fine powder; the coarser and finer powders are removed, leaving the medium powder. The driving mechanism can shake the powder sieving component to realize automatic powder sieving.
Preferably, the powder screening assembly is switched to move below the powder falling cavity in a rotating movement mode. The moving path occupied by moving in and out the powder sieving component in a rotating mode is short, and the internal space can be effectively saved.
Preferably, the powder sieving assembly is connected to a switching rotating shaft assembly extending in a vertical direction and rotates around the switching rotating shaft assembly to move below the powder falling cavity. Therefore, the switching paths of the powder sieving assemblies are staggered in space, and the influence of mutual movement of the powder sieving assemblies is avoided. Meanwhile, each powder sieving assembly can be switched through the same switching rotating shaft assembly, and the structure is simplified.
Preferably, the grinding powder screening device further comprises a limiting shaft assembly, the limiting shaft assembly is arranged on a moving path of the powder screening assembly, and the limiting shaft assembly blocks further movement of the powder screening assembly switched to the lower portion of the powder falling cavity. The limiting shaft assembly is used for positioning the powder sieving assembly, so that the powder sieving assembly can move without missing the position below the powder falling cavity.
Preferably, the drive mechanism comprises a cam assembly, and one end of the switching shaft assembly is in contact with the cam assembly and moves up and down with the rotation of the cam assembly. The cam can set up the change of fluctuation through the eccentric surface orbit at edge to the drive switches the pivot subassembly and shakes, switches the pivot subassembly simultaneously and still plays the effect that drives the shake when realizing the switching of sieve powder subassembly, has realized the make full use of structure.
Preferably, the grinding powder screening device further comprises a limiting shaft assembly, and the limiting shaft assembly is arranged on a moving path of the powder screening assembly and detachably buckled with the powder screening assembly switched to the lower side of the powder falling cavity. Thereby spacing axle subassembly and sieve powder subassembly lock prevent that the sieve powder subassembly of powder chamber below from producing when shaking from removing, spacing axle subassembly plays the supporting role to the one end of sieving the powder subassembly simultaneously, improves the intensity of sieving the powder subassembly, avoids the sieve powder subassembly to produce violently shake uncontrolled spill powder.
Preferably, the cam assembly includes two cam elements connected to each other, and one ends of the limit shaft assembly and the switching rotary shaft assembly are respectively in contact with the two cam elements and move up and down together with the rotation of the two cam elements. The cam elements on the two sides enable the limiting shaft assembly and the switching rotating shaft assembly to move together on the two sides, so that the rotating end and the buckling end of the powder sieving assembly can move synchronously, the strength is improved, and uncontrolled movement is avoided.
Preferably, the spacing axle subassembly include with the spacing slide bar and the cover of cam element contact are established spacing axle sleeve on the spacing slide bar, switch the pivot subassembly include with the switching slide bar and the cover of cam element contact are established switch the axle sleeve on the slide bar, spacing axle sleeve with the lock can be dismantled to the sieve powder subassembly, the sieve powder subassembly with switch the axle sleeve and rotate the connection, wherein, switch the slide bar with be provided with the reply component between the switching axle sleeve, and/or spacing slide bar with be provided with the reply component between the spacing axle sleeve. The restoring element can be a spring or other elements, and the restoring element absorbs vibration generated by up-and-down movement through stretching and contraction, so that the powder sieving process is more stable.
Preferably, the limiting shaft sleeve and the switching shaft sleeve are connected into a whole. Spacing axle sleeve and the switching axle sleeve of body coupling can the steady motion to make the both ends of sieve powder subassembly can both be synchronous in coordination produce the shake together.
Preferably, the grinding powder screening device further comprises a powder unloading mechanism, each powder screening assembly comprises a support and a screen, the screen can turn over relative to the support, and the powder unloading mechanism is used for driving the screen to turn over.
Preferably, the powder discharging mechanism is detachably connected with the screen, wherein the powder discharging mechanism is connected with the screen moved to the lower part of the powder falling cavity and drives the corresponding screen to turn over, and the powder discharging mechanism is disconnected with the screen moved out of the lower part of the powder falling cavity. Therefore, the powder screening assembly ensures that powder can only be discharged from the screen below the powder falling cavity, and the wrong powder discharge is avoided.
Preferably, the powder unloading mechanism comprises a rack extending along the vertical direction, each screen is provided with a turnover shaft, one end of each turnover shaft is connected with a gear exposed out of the support, and the rack is meshed with the gear and drives the screen to turn over. The powder can be stably sieved through the rack and the gear, and the overturning angle can be accurately controlled.
Preferably, the powder grinding screening device further comprises a powder receiving box and a waste material box, and the powder receiving box and the waste material box are switched and moved to the position below the powder screening component below the powder falling cavity. Therefore, the waste material box and the powder receiving box alternately receive and take corresponding powder, and the automatic connection of the subsequent extraction process is realized.
Preferably, the grinding powder screening apparatus further comprises:
the image recognition component is arranged at a feed inlet of the grinding device;
and the control unit controls the corresponding powder sieving assembly to switch into or move out of the lower part of the powder falling cavity and controls the driving mechanism to work.
Different powder sieving assemblies can be automatically selected according to different grinding objects through the image recognition assembly and the control unit, so that targeted powder sieving is performed.
Preferably, the grinding powder screening device further comprises a waste material box, wherein when the driving mechanism works, the control unit switches and moves the waste material box to be positioned below the powder screening assembly below the powder falling cavity.
Preferably, the grinding powder screening device further comprises a powder receiving box and a powder unloading mechanism, the powder unloading mechanism is used for unloading the powder on the powder sieving component, and when the powder unloading mechanism works, the control unit switches and moves the powder receiving box to the position below the powder falling cavity and below the powder sieving component.
Preferably, a gravity sensor is arranged below the powder receiving box, and the control unit starts the grinding device according to a signal of the gravity sensor.
Coffee machine, characterized in that it comprises said ground powder screening means.
A tea extraction machine is characterized by comprising the grinding powder screening device.
A powder screening method is characterized by comprising the following steps:
identifying the extracted matter through an image identification component;
the grinding device grinds and sends powder into the powder falling cavity;
selecting a corresponding powder sieving assembly to move to the lower part of the powder falling cavity to receive powder;
the driving mechanism drives the powder sieving assembly to move for sieving powder, and the powder is moved into the waste box to take the sieved powder;
the powder unloading mechanism drives the powder sieving assembly to unload the sieved powder, and the powder is moved into the powder receiving box to receive the powder;
and the gravity sensor of the powder receiving box reads gravity and selects the grinding device to continue grinding or stop.
A powder screening method is characterized by comprising the following steps:
identifying the extracted matter through an image identification component;
the grinding device grinds and sends powder into the powder falling cavity;
selecting a corresponding powder sieving assembly to move to the lower part of the powder falling cavity to receive powder;
the driving mechanism drives the powder sieving component to move for sieving powder, and the powder sieving component is moved into the powder receiving box to take the sieved powder;
a gravity sensor of the powder receiving box reads gravity and selects a grinding device to continue grinding or stop;
the powder unloading mechanism drives the powder sieving assembly to unload the sieved powder, and the powder is moved into the waste box to be collected.
A powder screening method is characterized by comprising the following steps:
identifying the extracted matter through an image identification component;
the grinding device grinds and sends powder into the powder falling cavity;
selecting a coarse powder sieving assembly to move to the position below the powder falling cavity for powder receiving, and moving a fine powder sieving assembly to the position below the coarse powder sieving assembly for powder receiving;
the driving mechanism drives the coarse powder sieving assembly and the fine powder sieving assembly to move for sieving powder, and the powder is moved into the waste box to take out the sieved powder;
the powder unloading mechanism drives the powder screening assembly to unload screened powder in the fine powder screening assembly and move into the powder receiving box to receive the powder, and/or the powder unloading mechanism drives the powder screening assembly to unload screened powder in the coarse powder screening assembly and move into the waste box to receive the powder.
And the gravity sensor of the powder receiving box reads gravity and selects the grinding device to continue grinding or stop.
The positive progress effects of the utility model are as follows: the utility model can match different extracted substances by switching the plurality of powder screening components, thereby screening correspondingly generated ultrafine powder or realizing other screening requirements. Thereby improving the uniformity of the ground powder, reducing blockage and improving the taste and the appearance of the extract.
Drawings
FIG. 1 is a schematic perspective view of a device for screening abrasive powders according to a preferred embodiment of the present invention.
FIG. 2 is a schematic perspective view of a device for screening abrasive powders according to a preferred embodiment of the present invention.
FIG. 3 is a schematic view of a partial structure of a powder screening apparatus according to a preferred embodiment of the present invention.
Fig. 4 is a schematic structural view of a limit shaft assembly and a switching rotary shaft assembly according to a preferred embodiment of the utility model.
FIG. 5 is a flow chart of a first method of screening powder in accordance with a preferred embodiment of the present invention.
FIG. 6 is a flow chart of a second method of screening powder in accordance with a preferred embodiment of the present invention.
FIG. 7 is a flow chart of a third method of screening powder in accordance with the preferred embodiment of the present invention.
Detailed Description
The utility model is further illustrated by the following examples, which are not intended to limit the scope of the utility model.
As shown in fig. 1 to 4, the present embodiment discloses a grinding powder screening apparatus, which includes a powder falling chamber 1 and a plurality of powder sieving assemblies 2 for sieving powders with different thicknesses, wherein the powder sieving assemblies 2 are arranged along a vertical direction, and the powder sieving assemblies 2 are movably disposed and switched to move below the powder falling chamber 1. The grinding powder screening device of the embodiment further comprises a driving mechanism, and the driving mechanism is connected with the powder screening component 2 and drives the powder screening component 2 to shake. The cam member 6 is used as the driving mechanism in the present embodiment, but may be another mechanism that generates movement in other embodiments.
As shown in fig. 1-4, the powder sieving assembly 2 of the present embodiment is switched to move below the powder falling chamber 1 by means of rotation movement. The moving path occupied by moving in and out the powder sieving component 2 in a rotating mode is short, and the internal space can be effectively saved.
As shown in fig. 1 and 2, the powder sieving assembly 2 of the present embodiment is connected to a vertically extending switching rotary shaft assembly 3 and moves to below the powder falling chamber 1 around the switching rotary shaft assembly 3. The switching paths of the powder sieving assemblies 2 are staggered in space, and the influence of mutual movement of the powder sieving assemblies 2 is avoided. Meanwhile, each powder sieving assembly 2 can be switched through the same switching rotating shaft assembly 3, and the structure is simplified.
As shown in fig. 1 and fig. 2, the apparatus for screening grinding powder of the present embodiment further includes a limiting shaft assembly 4, the limiting shaft assembly 4 is disposed on the moving path of the powder sieving assembly 2, and the limiting shaft assembly 4 blocks the further movement of the powder sieving assembly 2 switched to the lower side of the powder falling chamber 1. The limiting shaft assembly 4 is used for positioning the powder sieving assembly 2, so that the powder sieving assembly 2 can move without missing the position below the powder falling cavity 1.
As shown in fig. 1 and 2, the driving mechanism of the present embodiment includes a cam member 6, and one end of the switching shaft member 3 is in contact with the cam member 6 and moves up and down with the rotation of the cam member 6. The cam can set up the change of fluctuation through the eccentric surface orbit at edge to the drive switches the 3 shake of pivot subassembly, switches pivot subassembly 3 simultaneously and still plays the effect that drives the shake when realizing sieving powder subassembly 2 and switching, has realized the make full use of structure.
As shown in fig. 1 and fig. 2, the limiting shaft assembly 4 of the present embodiment is disposed on the moving path of the powder sieving assembly 2 and detachably fastened to the powder sieving assembly 2 switched to the lower side of the powder dropping chamber 1. Thereby spacing axle subassembly 4 and sieve powder subassembly 2 lock prevent to fall sieve powder subassembly 2 of powder chamber 1 below and produce when the shake and remove, spacing axle subassembly 4 plays the supporting role to the one end of sieving powder subassembly 2 simultaneously, improves the intensity of sieving powder subassembly 2, avoids sieve powder subassembly 2 to produce violently shake uncontrolled spill powder.
As shown in fig. 1 to 3, the cam member 6 of the present embodiment includes two cam members 61 connected to each other, and one ends of the stopper shaft member 4 and the switching rotary shaft member 3 are respectively in contact with the two cam members 61 and move up and down together with the rotation of the two cam members 61. The cam elements 61 on the two sides enable the limiting shaft assembly 4 and the switching rotating shaft assembly 3 to move together on the two sides, so that the rotating end and the buckling end of the powder sieving assembly 2 can move synchronously, the strength is improved, and uncontrolled movement is avoided. The double-sided cam element 61 in this embodiment may have a uniform outer profile so that the dithering of both sides is uniform. It is also possible to have a non-uniform outer contour so that the two sides will shake in different directions.
As shown in fig. 3 and 4, the limiting shaft assembly 4 of the present embodiment includes a limiting slide rod 41 contacting with the cam element 61 and a limiting shaft sleeve 42 sleeved on the limiting slide rod 41, the switching rotation shaft assembly 3 includes a switching slide rod 31 contacting with the cam element 61 and a switching shaft sleeve 32 sleeved on the switching slide rod 31, the limiting shaft sleeve 42 is detachably fastened with the powder sieving assembly 2, the powder sieving assembly 2 is rotatably connected with the switching shaft sleeve 32, wherein a restoring element 5 is disposed between the switching slide rod 31 and the switching shaft sleeve 32, and/or a restoring element 5 is disposed between the limiting slide rod 41 and the limiting shaft sleeve 42. The return element 5 may be a spring or the like, and the return element 5 absorbs the vibration generated by the up-and-down movement by stretching and shrinking, so that the powder sieving process is more stable.
As shown in fig. 3 and 4, the limiting shaft sleeve 42 and the switching shaft sleeve 32 of the present embodiment are independently disposed, and in other embodiments, the limiting shaft sleeve 42 and the switching shaft sleeve 32 may be integrally connected. The integrally connected limiting shaft sleeve 42 and the switching shaft sleeve 32 can move stably, so that the two ends of the powder sieving assembly 2 can synchronously and cooperatively shake together.
As shown in fig. 4, the apparatus for screening abrasive powder of the present embodiment further includes a powder discharge mechanism 7, each of the screen assemblies 2 includes a support 21 and a screen 22, the screen 22 is rotatable with respect to the support 21, and the powder discharge mechanism 7 is configured to drive the screen 22 to rotate.
As shown in fig. 3 and 4, the powder discharging mechanism 7 of the present embodiment is detachably connected to the screen 22, wherein the powder discharging mechanism 7 is connected to the screen 22 moved to the lower side of the powder falling chamber 1 and drives the corresponding screen 22 to turn over, and the powder discharging mechanism 7 is disconnected from the screen 22 moved to the lower side of the powder falling chamber 1. Therefore, the powder screening assembly ensures that only the screen 22 positioned below the powder falling cavity 1 can be discharged, and the wrong powder discharge is avoided.
As shown in fig. 4, the powder discharge mechanism 7 of the present embodiment includes racks extending in the vertical direction, each screen 22 has a reversing shaft, one end of the reversing shaft is connected to a gear exposed to the outside of the bracket 21, and the racks engage with the gear to drive the screen 22 to reverse. The powder can be stably sieved through the rack and the gear, and the overturning angle can be accurately controlled.
As shown in fig. 1 and fig. 3, the apparatus for screening abrasive powder of the present embodiment further includes a powder receiving box 82 and a waste material box 83, and the powder receiving box 82 and the waste material box 83 are switched to move to the lower side of the powder sieving assembly 2 located below the powder dropping chamber 1. Therefore, the waste material box 83 and the powder receiving box 82 alternately receive the corresponding powder, and the automatic connection of the subsequent extraction process is realized.
As shown in fig. 1, the grinding powder screening apparatus further includes an image recognition component 81, the image recognition component 81 is disposed at the feed inlet of the grinding apparatus 9, and the grinding powder screening apparatus of this embodiment further includes a control unit, and the control unit controls the corresponding powder sieving component to switch into or move out of the lower portion of the powder falling chamber 1, and controls the operation of the driving mechanism. Different powder screening assemblies 2 can be automatically selected according to different grinding objects through the image recognition assembly 81 and the control unit, so that targeted powder screening is performed.
Further, in the present embodiment, when the driving mechanism is operated, the control unit switches and moves the waste material box 83 to the position below the powder sieving assembly 2 located below the powder dropping chamber 1. The powder unloading mechanism 7 is used for unloading the powder on the powder sieving assembly, wherein when the powder unloading mechanism 7 works, the control unit switches and moves the powder receiving box 82 to the position below the powder sieving assembly 2 below the powder falling cavity 1. A gravity sensor 84 is arranged below the powder receiving box 82, and the control unit starts the grinding device 9 according to the signal of the gravity sensor 84.
The embodiment can match different extracted substances through switching of the powder screening assemblies 2, so that correspondingly generated ultrafine powder is screened. The required powder thickness can be accurately obtained through the powder sieving assemblies 2 with different thicknesses, and the required powder thickness can be obtained through removing fine powder to obtain coarse powder; removing the coarse powder to obtain fine powder; the coarser and finer powders are removed, leaving the medium powder. The driving mechanism can shake the powder sieving component 2 to realize automatic powder sieving.
In addition, the ground powder screening apparatus of the present embodiment may be applied to a coffee machine or a tea extraction machine, or may be an apparatus in which both of them can extract.
As shown in fig. 5, the present embodiment discloses a first powder sieving method, which includes the steps of:
s101, identifying the extracted matter through the image identification component 81;
s102, grinding by the grinding device 9 and sending powder into the powder falling cavity 1;
s103, selecting a corresponding powder sieving assembly 2, moving to the lower part of the powder falling cavity 1, and receiving powder;
s104, driving the powder sieving component 2 to move to sieve powder by the driving mechanism, and moving the powder sieving component into the waste material box 83 to take the sieved powder;
s105, the powder unloading mechanism 7 drives the powder sieving component 2 to unload the sieved powder, and the powder is moved into the powder receiving box 82 to receive the powder;
s106, the gravity sensor 84 of the powder receiving box 82 reads gravity and selects the grinding device 9 to continue grinding or stop.
As shown in fig. 6, the present embodiment discloses a second powder sieving method, which includes the steps of:
s201, identifying the extracted matter through the image identification component 81;
s202, grinding by a grinding device 9 and sending powder into a powder falling cavity 1;
s203, selecting the corresponding powder sieving assembly 2 to move to the lower part of the powder falling cavity 1 to receive powder;
s204, driving the powder sieving component 2 to move to sieve powder by the driving mechanism, and moving the powder sieving component into the powder receiving box 82 to receive the sieved powder;
s205, the gravity sensor 84 of the powder receiving box 82 reads gravity and selects the grinding device 9 to continue grinding or stop;
s206, the powder unloading mechanism 7 drives the powder sieving component 2 to unload the sieved powder, and the powder is transferred into the waste material box 83 to be collected.
As shown in fig. 7, the present embodiment discloses a third powder sieving method, which includes the steps of:
s301, identifying the extracted matter through the image identification component 81;
s302, grinding by the grinding device 9 and sending the powder into the powder falling cavity 1;
s303, selecting a coarse powder sieving assembly 2 to move to the position below the powder falling cavity 1 for powder receiving, and selecting a fine powder sieving assembly 2 to move to the position below the coarse powder sieving assembly 2 for powder receiving;
s304, driving the coarse powder sieving component 2 and the fine powder sieving component 2 to move for powder sieving by the driving mechanism, and transferring the powder to the waste material box 83 to take the sieved powder;
s305, the powder unloading mechanism 7 drives the powder sieving assembly 2 to unload the sieved powder in the fine powder sieving assembly 2, and the powder is moved into the powder receiving box 82 to receive the powder.
And S306, reading the gravity by the gravity sensor 84 of the powder receiving box 82 and selecting the grinding device 9 to continue grinding or stop.
S307, the powder unloading mechanism 7 drives the powder sieving assembly 2 to unload the sieved powder in the thicker powder sieving assembly 2, and the powder is transferred into the waste material box 83 to be collected.
Here, step S305 and step S07 are performed separately.
The utility model can match different extracted substances by switching the plurality of powder screening components, thereby screening correspondingly generated ultrafine powder or realizing other screening requirements. Thereby improving the uniformity of the ground powder, reducing blockage and improving the taste and the appearance of the extract.
While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the utility model, and these changes and modifications are within the scope of the utility model.
Claims (19)
1. A grinding powder screening apparatus, characterized by comprising:
a powder falling cavity;
the powder screening assemblies are used for screening powder with different thicknesses, are arranged along the vertical direction, are movably arranged and are switched to move below the powder falling cavity;
and the driving mechanism is connected with the powder sieving assembly and drives the powder sieving assembly to shake.
2. The apparatus for screening abrasive powder according to claim 1, wherein said powder sifting means is moved by switching by means of a rotational movement to a position below said powder falling chamber.
3. The apparatus for screening abrasive powder according to claim 2, wherein said powder sifting means is connected to a vertically extending switching shaft means and is rotatably moved around said switching shaft means to a position below said powder falling chamber.
4. The apparatus for screening abrasive powder according to claim 3, further comprising a limit shaft assembly provided on a moving path of said powder sifting assembly, said limit shaft assembly blocking further movement of said powder sifting assembly switched to below said powder falling chamber.
5. The apparatus for screening abrasive powder according to claim 3, wherein said driving mechanism comprises a cam member, and one end of said switching shaft member is in contact with said cam member and moves up and down with the rotation of said cam member.
6. The apparatus for screening abrasive powder according to claim 5, further comprising a limit shaft assembly which is provided on a moving path of said powder sifter assembly and detachably engaged with said powder sifter assembly switched to a position below said powder falling chamber.
7. The apparatus for screening abrasive powder according to claim 6, wherein said cam assembly comprises two cam members connected to each other, and one ends of said limit shaft assembly and said switching shaft assembly are respectively in contact with said two cam members and move up and down together with the rotation of said two cam members.
8. The apparatus for screening abrasive powder of claim 7, wherein said limiting shaft assembly comprises a limiting slide rod contacting with said cam element and a limiting shaft sleeve sleeved on said limiting slide rod, said switching shaft assembly comprises a switching slide rod contacting with said cam element and a switching shaft sleeve sleeved on said switching slide rod, said limiting shaft sleeve is detachably fastened to said powder sieving assembly, said powder sieving assembly is rotatably connected to said switching shaft sleeve, wherein a restoring element is disposed between said switching slide rod and said switching shaft sleeve, and/or a restoring element is disposed between said limiting slide rod and said limiting shaft sleeve.
9. The apparatus for screening abrasive powders of claim 8 wherein the limit bushing and the switch bushing are integrally connected.
10. The apparatus for screening abrasive powders according to claim 1, further comprising a powder discharge mechanism, wherein each of said screen assemblies comprises a frame and a screen, said screen being turnable with respect to said frame, said powder discharge mechanism being adapted to drive said screen to turn.
11. The apparatus for screening abrasive powders of claim 10 wherein the powder discharge mechanism is detachably connected to the screen, wherein the powder discharge mechanism is connected to the screen moved to the lower portion of the powder falling chamber and drives the corresponding screen to turn, and wherein the powder discharge mechanism is disconnected from the screen moved to the lower portion of the powder falling chamber.
12. The apparatus for screening abrasive powder according to claim 10, wherein said powder discharge mechanism comprises a rack extending in a vertical direction, each of said screens has a turnover shaft, a gear exposed to an outside of said frame is connected to one end of said turnover shaft, and said rack is engaged with said gear and drives said screen to turn.
13. The apparatus for screening abrasive powders according to claim 1, further comprising a powder receiving box and a waste box, wherein said powder receiving box and said waste box are switched to move below said powder sifting assembly below said powder falling chamber.
14. The abrasive powder screening apparatus of any one of claims 1 to 13, wherein said abrasive powder screening apparatus further comprises:
the image recognition component is arranged at a feed inlet of the grinding device;
and the control unit controls the corresponding powder sieving assembly to switch into or move out of the lower part of the powder falling cavity and controls the driving mechanism to work.
15. The apparatus for screening abrasive powders according to claim 14, further comprising a waste box, wherein said control unit switches said waste box to move below said powder sifting assembly below said powder falling chamber when said driving mechanism is operated.
16. The apparatus for screening abrasive powder of claim 14, further comprising a powder receiving box and a powder discharging mechanism for discharging powder from said powder sifting assembly, wherein said control unit switches said powder receiving box to move below said powder sifting assembly below said powder dropping chamber when said powder discharging mechanism is operated.
17. The apparatus for screening abrasive powder according to claim 16, wherein a gravity sensor is disposed below said powder receiving box, and said control unit activates said grinding means according to a signal from said gravity sensor.
18. Coffee machine, characterized in that it comprises a ground powder screening device according to any one of claims 1 to 17.
19. A tea leaf extraction machine, characterized in that it comprises a mill dust screening apparatus according to any one of claims 1 to 17.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120956234.9U CN215959398U (en) | 2021-05-07 | 2021-05-07 | Ground powder screening device, coffee machine and tea extraction machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120956234.9U CN215959398U (en) | 2021-05-07 | 2021-05-07 | Ground powder screening device, coffee machine and tea extraction machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215959398U true CN215959398U (en) | 2022-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120956234.9U Active CN215959398U (en) | 2021-05-07 | 2021-05-07 | Ground powder screening device, coffee machine and tea extraction machine |
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| CN (1) | CN215959398U (en) |
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- 2021-05-07 CN CN202120956234.9U patent/CN215959398U/en active Active
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