CN218074535U - Coffee powder filling and dosing system - Google Patents

Abstract

The utility model discloses a filling and ration system of coffee powder belongs to the beverage and steeps electrical apparatus, and great error easily appears in the compaction degree of current coffee bean grinding device to coffee powder and the capacity of coffee powder, the utility model discloses a powder pressing wheel is arranged in the powder bowl and rises its position in the powder bowl when being used for the compaction of coffee powder in the powder bowl by the power rotation of transmission shaft transmission, and first position and second position when rising are pressed in the powder bowl with first inductive switch response powder pressing wheel, and the capacity difference that the second capacity position that corresponds the second position is piled up from the first capacity position that corresponds the first position to the coffee powder is constant in the powder bowl. And recording the time period required by the powder pressing wheel to rise from the first position to the second position through the control system, calculating the grinding speed of the ground coffee powder, determining the total grinding time or the residual grinding time according to the size of the powder bowl, and controlling the motor to stop. Avoid the degree of compaction of the coffee powder and the volume of the coffee powder to appear great error.

Description

Coffee powder filling and dosing system

Technical Field

The utility model belongs to beverage dashes and steeps electrical apparatus, concretely relates to filling and ration system of coffee powder for to filling coffee powder in the powder bowl and confirm the grinding speed of coffee powder according to the size of powder bowl, the thickness degree of coffee powder.

Background

The bean grinding coffee machine needs to grind coffee beans into coffee powder and compact the coffee powder when brewing coffee so as to brew (extract) coffee beverage with superior taste. Furthermore, the volume of coffee powder to be ground should be adapted to the volume of the beverage to be brewed.

The existing bean grinding coffee machine automatically compacts and quantifies the load by rotating the powder. The coffee bean grinding device adopts rotary powder distribution, the powder distribution and the extrusion are synchronous, the powder is stacked layer by layer, and when the load reaches a set threshold value of the powder distribution and compaction motor, the coffee bean grinding device stops working. When the bean grinding coffee machine works, because the grinding speed is different due to different factors such as the size of a grinding gap, the variety of coffee beans, the dryness of the coffee beans and the like, the actual load of the powder distribution and the compaction motor is easy to fluctuate, and the compaction degree of the coffee powder and the capacity of the coffee powder are not in actual accordance with the set threshold value when the coffee grinding coffee machine stops working, so that large errors occur in the compaction degree of the coffee powder and the capacity of the coffee powder, and the coffee beverage with good quality and high stability is difficult to prepare.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem who solves and the technical task who provides overcome that current coffee bean device of grinding reaches the defect that compaction degree and the capacity of coffee powder to the coffee powder that the setting threshold value of cloth powder and compaction motor comes the stop work to cause through the load and great error appears, a filling and ration system of coffee powder is provided, a grinding speed for confirming the ground coffee powder, supply the coffee machine to confirm grinding time according to this grinding speed, avoid appearing great error to the compaction degree of coffee powder and the capacity of coffee powder.

In order to achieve the above object, the utility model discloses a coffee powder's filling and ration system, characterized by: the coffee powder compacting device comprises a transmission shaft, a powder compacting wheel, a first induction switch and a replaceable powder bowl, wherein the powder compacting wheel is positioned in the powder bowl and is rotated by virtue of power transmitted by the transmission shaft to compact coffee powder in the powder bowl and simultaneously raise the position of the powder bowl, the first induction switch is used for inducing a first position and a second position of the powder compacting wheel when the powder compacting wheel is raised in the powder bowl, the first position corresponds to a first capacity position where the coffee powder is accumulated in the powder bowl, the second position corresponds to a second capacity position where the coffee powder is accumulated in the powder bowl, and the capacity difference of the coffee powder accumulated from the first capacity position to the second capacity position in the powder bowl is constant.

Since the size of the bowl is determined during the grinding operation, the difference in the volume of coffee powder deposited in the bowl from the first volume position to the second volume is determined to be constant. Even if the grinding speed is different when coffee beans are actually ground, the control system records the time period required by the first inductive switch to induce the powder pressing wheel to rise from the first position to the second position in the powder bowl, so that the grinding speed of the ground coffee powder can be calculated, finally, the control system determines the total grinding time or the residual grinding time according to the grinding speed and the size of the powder bowl (the capacity of the coffee powder corresponding to the powder bowl), and the motor is controlled to stop by the total grinding time or the residual grinding time. Avoid the degree of compaction of the coffee powder and the volume of the coffee powder to appear great error.

According to the filling and quantifying system for the coffee powder, even if different powder bowl specifications and capacities are different, the coffee powder can be prevented from being compacted and having larger errors due to the fact that the capacity difference from the first capacity position to the second capacity position is constant in the powder bowls with different specifications and capacities. Therefore, the coffee powder filling and quantifying system is suitable for powder bowls with different specifications and capacities, and has good universality.

Specifically, in order to uniformly distribute and compact the coffee powder and raise the coffee powder along with the accumulation of the coffee powder in the powder bowl, the powder pressing wheel is provided with an inclined wheel blade, and the wheel blade is lifted by the coffee powder in the powder bowl when the powder pressing wheel rotates.

Particularly, the transmission shaft is vertically arranged in a floating mode, and the powder pressing wheel is fixedly connected to the lower end of the transmission shaft and vertically floats along with the transmission shaft. In addition, in order to enable the first inductive switch to accurately detect signals and avoid the influence caused by coffee powder, the first inductive switch is positioned above the powder bowl, and the transmission shaft is provided with a first position structure corresponding to the first position and a second position structure corresponding to the second position, which are used for triggering the first inductive switch. The first induction switch is a photoelectric switch, the first position structure and the second position structure are both arranged on the ring groove on the transmission shaft, and the photoelectric switch corresponds to the ring groove and sends signals to the control system.

And the transmission shaft and the power output end are inserted together to realize the vertical floating.

In a preferred embodiment, the edge of the vane is provided with a flexible part contacting the inner wall of the powder bowl. In the process of compacting the coffee powder by the powder pressing wheel, the flexible part can scrape off fine dust attached to the inner wall of the powder bowl, so that the powder bowl is kept clean.

In order to prepare coffee beverages with different volumes, the powder bowls comprise at least two powder bowls with different specifications, the volumes of the powder bowls with different specifications are different corresponding to the parts below the first position, and the volumes of the powder bowls with different specifications are the same corresponding to the parts above the first position. Therefore, the powder bowls with different specifications and capacities can be selected to prepare coffee beverages with different capacities. Moreover, because the capacities of the parts of the powder bowls with different specifications corresponding to the positions above the first position are the same, after the powder bowls with different specifications are replaced, the capacities of the coffee powder corresponding to the parts above the first position are the same, and accordingly, the residual grinding time can be determined according to the grinding speed.

In a preferred scheme, the powder bowl is replaceably arranged in a filter, the filter is detachably assembled on a retainer, and the transmission shaft extends from the upper part of the retainer to the powder bowl; the transmission shaft or the powder pressing wheel is vertically limited, so that the transmission shaft and the powder pressing wheel are kept at the assembling position when the powder bowl is detached from the retainer along with the filter. Therefore, when the powder bowl is replaced, the powder pressing wheel can be kept in the original position and cannot be separated from the transmission relation along with the removal of the powder bowl, and the operation is facilitated.

The utility model discloses a be arranged in the powder bowl with the pressure powder wheel and rise its position in the powder bowl when being used for the coffee powder compaction to the powder bowl by the power rotation of transmission shaft transmission, first inductive switch is used for responding to first position and second position when the pressure powder wheel risees in the powder bowl, first position corresponds the first capacity position that the coffee powder piled up in the powder bowl, the second capacity position that the coffee powder piled up in the powder bowl is corresponded to the second position, the capacity difference that the coffee powder piled up the second capacity position from first capacity position in the powder bowl is the constant. The control system records the time period required by the first inductive switch to induce the powder pressing wheel to rise from the first position to the second position in the powder bowl, the grinding speed of the ground coffee powder can be calculated, finally, the control system determines the total grinding time or the residual grinding time according to the grinding speed and the size of the powder bowl (the capacity of the coffee powder corresponding to the powder bowl), and the motor is controlled to stop by the total grinding time or the residual grinding time. Avoid the degree of compaction of the coffee powder and the volume of the coffee powder to appear great error.

The utility model discloses a filling and ration system of coffee powder, even different powder bowl specification, capacity are different, nevertheless only need guarantee that the coffee powder piles up the capacity difference of second capacity from first capacity position in the powder bowl of different specifications, capacity to be the constant, can avoid the great error to appear in the capacity of the compaction degree of coffee powder and coffee powder. Therefore, the coffee powder filling and quantifying system is suitable for powder bowls with different specifications and capacities, and has good universality.

Drawings

FIG. 1 is a cross-sectional view of a coffee grounds filling and dosing system of the present invention;

FIG. 2 is a schematic view of a first sensor switch sensing the raising of a powder pressing wheel to a first position within a powder bowl of the coffee powder filling and dosing system of FIG. 1;

FIG. 3 is a schematic view of the first sensor switch sensing the lifting of the powder pressing wheel to a second position within the powder bowl of the coffee powder filling and dosing system of FIG. 1;

FIG. 4 is an exploded view of the coffee powder filling and dosing system of FIG. 1;

FIG. 5 is a schematic view of the structure of FIG. 4 from another perspective;

FIG. 6 is a schematic view showing the assembly relationship of the transmission shaft, the powder pressing wheel, the first inductive switch and the second inductive switch of the present invention;

FIG. 7 is a schematic view from another perspective of the structure shown in FIG. 6;

FIG. 8 is a schematic view of a coffee powder filling and dosing system of the present invention applied to a quantitative bean grinding apparatus;

the reference numbers in the figures illustrate:

100 a material storage and discharging system;

200 a pulverizing system;

300 filling and dosing system:

310, 311, 312, 313, 314, a hexagonal blind hole,

320 powder pressing wheel, 321 vane wheel, 322 notch,

a powder bowl (330) is arranged in the powder bowl,

340, a filter, 341 ear portions,

350 holder, 351 telescopic rod, 352 spring, 353 spiral groove,

k1 a first inductive switch for the first time,

k2 second inductive switch.

Detailed Description

To make the purpose, technical solutions and advantages of the present invention clearer, the attached drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The terms "comprises" and "comprising," and any variations thereof, in the description and claims of the present invention are intended to cover a non-exclusive inclusion, such that a method or article of manufacture that comprises a list of features is not necessarily limited to those features expressly listed, but may include other features not expressly listed that may be included in the method or article of manufacture.

In the description of the present invention, it is to be understood that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of description of the present invention and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the technical features defined by the terms "first", "second", etc. have sequential concepts, and the defined technical features are only clearly distinguished from other technical features in order to clearly describe the defined technical features, but do not represent such naming in actual implementation, and therefore, cannot be construed as limiting the present invention.

The present invention will be described in detail with reference to the following embodiments and accompanying drawings.

As shown in fig. 1-7, the coffee powder filling and dosing system 300 includes a holder 350, a filter 340, a driving shaft 310, a powder pressing wheel 320, a first inductive switch K1, and a replaceable powder bowl 330. The holder 350 is in a fixed position, such as fixed to the body of the coffee maker.

The holder 350 is a frame that serves as a mounting base for other components of the filling and dosing system. It may thus be part of the relevant structural element of the fuselage or it may be a separate structural element fitted to the fuselage. Moreover, a second inductive switch K2 and a vertical telescopic rod 351 are arranged on the holder 350, and the telescopic rod 351 is far away from the second inductive switch K2 under the action of the elastic force of the spring 352.

The filter preferably has a filtering function, which is realized by arranging a filter screen. When the powder bowl is specifically implemented, the filtering function of the filter can be realized due to the micropores, and the filtering function of the filter can not be given. In either configuration, the filter is more useful for receiving replaceable bowls. The filter 340 is detachably coupled to the holder 350, as by the ears 341 of its edge engaging the spiral grooves 353 of the holder's inner wall. When the filter is assembled to the holder, the ear 341 is lifted along the spiral groove 353, pushing the telescopic rod 351 to move upward, and the telescopic rod 351 triggers the second inductive switch K2, and the second inductive switch K2 provides a standby signal for the control system.

The powder bowl 330 includes at least two, such as three sizes. When grinding coffee grounds, any of the grounds bowls are placed in the strainer 340, the bowls can be placed with the strainer into a holder, shown in FIG. 8, below the pulverizing system 200 to receive the coffee grounds. When the powder bowls are placed in the filter 340, the powder bowls with different specifications have different capacities corresponding to the parts below the first position and have the same capacity corresponding to the parts above the first position, so that the powder bowls with the three specifications, namely the large, the medium and the small, have different total capacities. When coffee powder is ground, the powder bowl with required volume can be arranged in the filter according to the requirement to brew coffee beverages with different volumes, so that the powder bowl can be replaced according to the requirement.

The driving shaft 310 is a cylindrical shaft which extends downward through the holder from the upper side of the holder 340 toward the powder bowl 330 and thus can rotate relative to the holder. The transmission shaft 310 is provided with an annular edge 313, the annular edge 313 is positioned on the upper side of the retainer 340 and is limited vertically to block the transmission shaft from separating from the retainer downwards, so that the transmission shaft is kept at the working position, and the transmission shaft and the powder pressing wheel are kept at the assembling position when the powder bowl is detached from the retainer along with the filter.

The upper end of the driving shaft 310 has a hexagonal blind hole 314, and a hexagonal prism-shaped driving rod, which is a power output end of the pulverizing system, is inserted into the hexagonal blind hole 314 to realize power transmission, and the driving shaft can axially move relative to the driving rod, thereby realizing a vertical floating configuration of the driving shaft. Two ring grooves are also formed on the transmission shaft as a first position structure 311 and a second position structure 312. The first position structure corresponds to a first position when the powder pressing wheel rises in the powder bowl, and the second position structure corresponds to a second position when the powder pressing wheel rises in the powder bowl.

In the illustration, the dust wheel 320 is in the form of a fan blade of an axial fan having angled vanes 321. The powder pressing wheel 320 is fixedly connected to the lower end of the transmission shaft 310. Therefore, the powder pressing wheel is positioned in the powder bowl and rotates by virtue of power transmitted by the transmission shaft, the powder pressing wheel is used for compacting coffee powder in the powder bowl when rotating, and meanwhile, the wheel blade is lifted by the coffee powder in the powder bowl to lift the position of the powder pressing wheel in the powder bowl. In addition, a flexible part such as silicone rubber is arranged at the edge of the wheel blade to contact the inner wall of the powder bowl to clean the inner wall of the powder bowl, and the edge of the wheel blade in the figure shows a notch 322 for arranging the flexible part.

Although the floating of the powder pressing wheel is realized by the floating of the transmission shaft 310, in a specific implementation, the transmission shaft can be vertically positioned and assembled on the transmission shaft in a floating manner. In this case, the first position structure and the second position structure may be provided to the dust pressing wheel.

The first sensing switch K1 is used for sensing a first position and a second position when the powder pressing wheel rises in the powder bowl, the first position corresponds to a first volume position where coffee powder is accumulated in the powder bowl, the second position corresponds to a second volume position where coffee powder is accumulated in the powder bowl, and a volume difference V2 from the first volume position to the second volume position where coffee powder is accumulated in the powder bowl is a constant, which is shown in fig. 3. The first inductive switch K1 is a photoelectric switch having a transmitting end and a receiving end opposite to each other, and the transmitting end and the receiving end are shielded by the transmission shaft for most of the time period and cannot receive the signal transmitted from the transmitting end by the receiving end. And when the photoelectric switch corresponds to the ring groove, a signal is sent to a control system. The first inductive switch K1 is mounted on top of the holder 350 above the powder bowl 330. When the transmission shaft 310 is lifted, only when the two ring grooves serving as the first position structure and the second position structure respectively correspond to the transmitting end and the receiving end, the ring grooves provide a channel for the transmitting end to transmit signals to the receiving end, and the first inductive switch K1 is triggered and sends signals to the control system.

Because the different powder bowls of specification correspond the capacity difference of the part below the first position, the different powder bowls of specification correspond the capacity of the part above the first position the same, therefore, when the ration grinds beans device crocus, no matter what kind of specification's powder bowl chooses for use, rise to the first position before the crocus wheel, the ration grinds beans device can last the crocus, and rise to the first position after from the crocus wheel, the different powder bowls of specification correspond the capacity of the part above the first position the same, can confirm surplus crocus time according to crocus speed in view of the above, thereby can realize the unified control after the first position.

Fig. 8 shows a quantitative bean grinding apparatus comprising: the system comprises a material storing and discharging system 100, a crushing system 200, a filling and quantifying system 300 and a control system. The storage and feeding system 100 is used to store and deliver coffee beans to the lower pulverizing system 200. The grinding system 200 is used to grind and grind coffee beans being delivered. The filling and dosing system 300 is adapted to receive and dose coffee grounds from the grinding system 200. The control system is used for controlling the storing and blanking system 100, the pulverizing system 200 and the filling and dosing system 300 to cooperate, so that the control system is embodied as a control circuit, such as a PCB, not shown in the figure.

The control system is used for controlling the storage and blanking system, the crushing system and the filling and quantifying system to cooperatively act, and is also used for recording a time period t2 required by the first inductive switch K1 to induce the powder pressing wheel to rise from a first position to a second position in the powder bowl, and signals sent to the control system when the photoelectric switch corresponds to two annular grooves serving as a first position structure and a second position structure are respectively used as a starting point and an ending point of the second time period t 2. The control system determines the grinding speed V = V2/t2 according to the volume difference V2 and the time period t2, determines the total grinding time or the residual working time of the grinding system S2 according to the grinding speed to empty the grinding system, stops the work of the motor, ensures the accurate volume of the ground coffee powder and accurately controls the compaction degree of the coffee powder so as to prepare the coffee beverage with good quality and high stability.

Claims (9)

1. Filling and ration system of coffee powder, characterized by: the coffee powder compacting device comprises a transmission shaft (310), a powder compacting wheel (320), a first inductive switch (K1) and a replaceable powder bowl (330), wherein the powder compacting wheel (320) is positioned in the powder bowl (330) and is rotated by power transmitted by the transmission shaft to compact coffee powder in the powder bowl and simultaneously raise the position of the powder bowl, the first inductive switch (K1) is used for sensing a first position and a second position when the powder compacting wheel is raised in the powder bowl, the first position corresponds to a first capacity position where the coffee powder is accumulated in the powder bowl, the second position corresponds to a second capacity position where the coffee powder is accumulated in the powder bowl, and the capacity difference between the first capacity position and the second capacity position where the coffee powder is accumulated in the powder bowl is a constant.

2. The coffee powder filling and dosing system of claim 1, wherein: the powder pressing wheel (320) is provided with inclined vanes (321), and the vanes are lifted by coffee powder in the powder bowl when the powder pressing wheel rotates.

3. The coffee powder filling and dosing system of claim 2, wherein: the transmission shaft (310) is vertically arranged in a floating mode, and the powder pressing wheel (320) is fixedly connected to the lower end of the transmission shaft (310) and vertically floats along with the transmission shaft (310).

4. A coffee powder filling and dosing system as claimed in claim 3, characterized in that: the first induction switch (K1) is located above the powder bowl (330), and a first position structure (311) which is used for triggering the first induction switch (K1) and corresponds to the first position and a second position structure (312) which corresponds to the second position are arranged on the transmission shaft (310).

5. The coffee powder filling and dosing system of claim 4, wherein: first inductive switch (K1) is photoelectric switch, first position structure (311) and second position structure (312) are seted up the epaxial annular of transmission, photoelectric switch corresponds send signal to control system during the annular.

6. A coffee powder filling and dosing system as claimed in claim 3, characterized in that: the transmission shaft (310) and the power output end (210) are inserted together to realize the vertical floating.

7. The coffee powder filling and dosing system of claim 2, wherein: the edge of the vane is provided with a flexible part contacting the inner wall of the powder bowl.

8. The coffee powder filling and dosing system of claim 1, wherein: the powder bowls (330) comprise at least two powder bowls with different specifications, the powder bowls with different specifications have different capacities corresponding to the parts below the first position, and the powder bowls with different specifications have the same capacity corresponding to the parts above the first position.

9. The coffee powder filling and dosing system of claim 1, wherein: the powder bowl (330) is replaceably arranged in a filter (340), the filter (340) is detachably assembled on a retainer (350), and the transmission shaft (310) extends from the upper part of the retainer (350) to the powder bowl (330); the transmission shaft is vertically limited so that the transmission shaft and the powder pressing wheel are kept at the assembling position when the powder bowl is detached from the retainer along with the filter.

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