TWM506095U - Measuring machine of coffee powder - Google Patents

Description

Coffee powder dispenser

The present invention relates to a dosing device, and more particularly to a coffee powder dosing machine.

Referring to Figure 1, the patent TW201321266 discloses a particle dosing device comprising a vibrating device 11, a counting device 12, a metering container 13, and a control device (not shown). The plurality of particles are vibrated by the vibrating device 11 to the metering container 13, and the counting device 12 calculates the amount of the particles falling into the measuring container 13, and returns a counting signal to the control device to control the vibrating device. 11 The amount of particles delivered. Such a dosing device is suitable for the case where the particle size is uniform and the number of particles is easily calculated, and it is not suitable for a coffee powder having a viscosity and a fine powder. At present, the quantitative method of a coffee machine on the market uses the grinding time to calculate the amount of coffee powder, but the error of the powder amount is large, and the quantitative accuracy is low. Another quantitative method of grinders is to calculate the weight of coffee powder while grinding the beans, but there is still a problem of accuracy, because the falling of coffee powder will cause weight fluctuations, and after the weight calculation is completed, grind beans The job can't be stopped immediately, it will produce a weight difference, and it is not suitable for calculating a small amount of powder.

Therefore, the object of the present invention is to provide a coffee powder dosing machine with high precision.

Therefore, the novel coffee powder dosing machine is suitable for a coffee packaging machine, the coffee packaging machine comprises a storage hopper for accommodating powdery materials, the coffee powder dosing machine comprises a vibration conveying unit, a weighing unit, and a controller .

The vibrating transport unit includes a transport track that transports material from a feed end to a discharge end through different vibration frequencies.

The weighing unit comprises a weighing hopper for receiving material from the discharging end, a sensor connected to the weighing hopper, and a damper disposed under the weighing hopper for absorbing vibration of the weighing hopper.

The controller electrically connects the sensor to the vibration delivery unit.

The storage hopper provides material to be fed from the feeding end, and the conveying rail transmits the material to the discharging end through reciprocating vibration, so that the material falls into the weighing hopper, and the sensor senses the gravity signal and transmits the control to the control The controller calculates the weight value of the material in the weighing hopper, and the controller has a built-in set value, and when the weight value reaches the set value, the vibrating conveying unit is stopped.

The utility model has the advantages that the damper assists the sensor to measure an accurate gravity signal and feeds back to the controller to effectively control the feeding progress of the vibration conveying unit, thereby making the quantification of the material more precise.

11‧‧‧Vibration device

12‧‧‧ Counting device

13‧‧‧Measuring container

2‧‧‧coffee packaging machine

21‧‧‧ storage hopper

22‧‧‧Packing unit

3‧‧‧Vibration conveyor unit

301‧‧‧ Feeding end

302‧‧‧ discharge end

31‧‧‧Basic chassis

32‧‧‧Vibrator

33‧‧‧Transportation track

34‧‧‧Flexible parts

35‧‧‧feeding trough

351‧‧‧Discharge port

352‧‧‧ sloping plate

4‧‧‧Weighing unit

41‧‧‧ scale hopper

411‧‧‧ hopper door

412‧‧‧

42‧‧‧ Sensor

43‧‧‧ damper

431‧‧‧Piston

432‧‧‧ container

5‧‧‧Battery

51‧‧‧提提

52‧‧‧pressure cylinder

6‧‧‧ Controller

61‧‧‧ display panel

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: Figure 1 is a side view showing that the patent TW201321266 discloses a particle Figure 2 is a side view showing an embodiment of the present coffee powder dosing machine; Figure 3 is a front view of an embodiment; Figure 4 is a partial view showing a vibrating conveying unit of the embodiment; Figure 5 is a partial view showing a weighing unit of the present embodiment; and Figure 6 is a schematic view showing the change in the weight of the material during the feeding process.

Referring to Figures 2 and 3, an embodiment of the present coffee powder dispenser is applicable to a coffee packaging machine 2. The coffee packaging machine 2 comprises a storage hopper 21 for containing powdered material, and a packaging unit 22 for packaging the quantitative powder.

The coffee powder dosing machine comprises a vibration conveying unit 3, a weighing unit 4, a drawer 5, and a controller 6.

Referring to FIG. 2 and FIG. 4, the vibration transmission unit 3 transmits materials through different vibration frequencies, and includes a balance chassis 31 located below, a vibration device disposed on the balance chassis 31 and electrically connected to the controller 6. The device 32, a conveying rail 33, an elastic member 34 disposed between the conveying rail 33 and the balance chassis 31 and driven by the vibrator 32, and a mounting device 33 mounted on the conveying rail 33 and having a discharge Feed chute 35 of port 351. The vibration of the vibrator 32 causes the conveying rail 33 to reciprocate with the set of elastic members 34, thereby driving the feeding groove 35 to advance the material from a feeding end 301 to a discharging end 302 in a linear direction. The set of elastic members 34 and the balance chassis 31 can support the upper conveying rail 33, balance the inertial force of the vibration, reduce the load of the lower machine, and make the feeding process more stable. In this embodiment, The vibrator 32 is an electromagnetic vibrator 32 that can be regulated by the controller 6 and provides a suitable mode of vibration. The feeding trough 35 is provided at the feeding end 301 with an inclined plate 352 for guiding material.

Referring to FIG. 2 and FIG. 5 , the weighing unit 4 includes a scale hopper 41 for receiving materials, a sensor 42 connected to the scale hopper 41 and electrically connected to the controller 6 , and a set under the scale hopper 41 . Damper 43. In the present embodiment, the scale hopper 41 has an upwardly traversable hopper door 411 having a lever 412 on the side. The sensor 42 is a load cell for sensing the signal of gravity change of the scale hopper 41 and transmitting it back to the controller 6. The damper 43 is a hydraulic damper 43 and has a piston 431 connected to the scale hopper 41, and a container 432 for sliding the piston 431 and containing a thick liquid. The vibration of the scale hopper 41 is absorbed by the method of compressing the thick liquid in the container 432 to achieve a vibration damping effect, and the degree of shock absorption can be adjusted by adjusting the amount of oil.

Referring to Figures 2 and 3, the bucket 5 is mounted beside the scale hopper 41 and has a handle 51 and a cylinder 52 for driving the handle 51 to lift and electrically connect the controller 6.

Referring to Figures 2, 4 and 5, the controller 6 includes a control circuit (not shown) for adjusting the vibrator 32, and a display panel 61. For convenience of manipulation, the display panel 61 usually has a weight display screen, a frequency control button, a category selection button, a power switch, an indicator light, and the like, but is not limited thereto. The control circuit adjusts the voltage amplitude, frequency, or phase input to the vibrator 32, thereby changing the feed speed and intensity of the transport track 33. The controller 6 receives the gravity signal from the sensor 42 The number is converted to a weight value and compared to the built-in value. The controller 6 constructs a set value, a threshold value, and a threshold value greater than the threshold value and less than the set value for the same material. Wherein, the set value indicates a weight to be dispensed, and the threshold value is used as a basis for speed switching of the vibration transmitting unit 3, and the data of the threshold value is adjacent to the set value, and the difference between the two is determined by the vibration conveying unit. 3 The amount of natural blanking due to inertia is determined by the amount of inertia.

In operation, the storage hopper 21 is fed by the feeding end 301, and the material falls into the feeding trough 35. The conveying rail 33 drives the feeding trough 35 to convey the material to the discharging end 302 through reciprocating vibration. The mouth 351 falls into the weighing hopper 41, and the sensor 42 senses the gravity signal. At the same time, the damper 43 absorbs the vibration of the weighing hopper 41 to ensure the accuracy of the gravity signal, and the gravity signal is transmitted to the controller. 6 Calculate the weight value of the material in the scale hopper 41. Referring again to Fig. 6, taking 10 grams of coffee powder as an example, the weight of the material in the weighing hopper 41 during the feeding process is shown, wherein the horizontal axis represents time (T) and the vertical axis represents weight (W), and the data The settings are as follows: The set value is 10.0 grams, the threshold is 8.0 grams, and the threshold is 9.6 grams. In the case that the weight value is less than the threshold value, the controller 6 drives the vibration conveying unit 3 to quickly feed, such as the feeding curve A1, so that the material can quickly pass through the feeding trough 35 and enter the weighing hopper 41; Upon reaching the threshold, the controller 6 drives the vibrating transport unit 3 to feed slowly, such as the feed curve A2, to slow the feed rate. When the weight value reaches the critical value, the controller 6 stops the vibrating conveying unit 3, and some materials will naturally fall due to inertia, such as the feeding curve A3, thereby reaching the set value. For materials After the weight value reaches the set value, the controller 6 drives the pressure cylinder 52 of the bucket puller 5 to drive the handle 51 to pull the lever 412 to open the hopper door 411 to drop the material to the packaging unit. 22, such as feed curve A4. It can be understood that, in the case of actual feeding, the vibration conveying unit 3 switches the feeding speed to have a short conversion time, and the material is subjected to inertia, and the falling material still maintains the speed of fast feeding, so the feeding curve A1 to the feeding curve A2 has a short delay.

The controller 6 can also adjust or change the built-in value and the output voltage for different material types or packaging capacities. In terms of coffee powder, it can also be subdivided according to the grinding precision, such as special coffee powder for hand punching (grinding particles are coarser) ), siphon coffee maker special coffee powder, espresso special coffee powder (fine grinding particles), etc., corresponding to the establishment of several set values, the threshold value and the critical value of the data, and according to different material types The voltage input to the vibrator 32 is adjusted to control the feed speed and strength of the vibrating conveying unit 3.

Through the above description, the advantages and effects of the new coffee powder dosing machine are listed below:

1. The novel adopts a multi-stage feeding process to achieve a high precision value, wherein the vibration conveying unit 3 has to cooperate with the speed and strength adjustment of the controller 6, so that the feeding process is smooth and stable, and the stage is completed. Have to feed.

2. The sensor 42 and the damper 43 cooperate with each other to return an accurate weight value, thereby preventing the scale hopper 41 from affecting the gravity signal due to factors such as shaking and vibration, and contributing to the judgment and control of the controller 6.

Third, the multi-value setting helps to improve the accuracy, slow down the feeding speed in the vicinity of the set value, and consider the case of natural blanking. Taking the coffee powder of 10 grams as an example, the error of the weight value of the material can be introduced. Within plus or minus 0.1 grams.

4. The weight of the new type is high, especially suitable for the quantification of materials in small portions, and the feeding speed and strength can be adjusted according to materials with different particle sizes.

5. The consistent amount of coffee powder after packaging also helps the user to brew, ensuring stable quality.

In summary, the novel can effectively improve the accuracy, so it can achieve the purpose of the novel.

However, the above is only a preferred embodiment of the present invention, and when it is not possible to limit the scope of the present invention, any simple equivalent changes and modifications made in accordance with the scope of the present patent application and the contents of the patent specification are It is still within the scope of this new patent.

2‧‧‧coffee packaging machine

21‧‧‧ storage hopper

22‧‧‧Packing unit

3‧‧‧Vibration conveyor unit

31‧‧‧Basic chassis

33‧‧‧Transportation track

35‧‧‧feeding trough

4‧‧‧Weighing unit

41‧‧‧ scale hopper

411‧‧‧ hopper door

412‧‧‧

42‧‧‧ Sensor

43‧‧‧ damper

5‧‧‧Battery

51‧‧‧提提

52‧‧‧pressure cylinder

6‧‧‧ Controller

61‧‧‧ display panel

Claims (10)

A coffee powder dosing machine suitable for a coffee packaging machine, the coffee packaging machine comprising a storage hopper for accommodating powdery materials, the coffee powder dosing machine comprising: a vibrating conveying unit, comprising: a material passing through different vibration frequencies a feeding end is conveyed to a conveying rail of a discharging end; a weighing unit comprises a weighing hopper for receiving material from the discharging end, a sensor connected to the weighing hopper, and a set under the weighing hopper and a damper for absorbing the vibration of the scale hopper; and a controller electrically connecting the sensor and the vibrating conveying unit, the hopper provides material to be fed by the feeding end, and the conveying rail transmits through the reciprocating vibration Feeding the material to the discharge end, causing the material to fall into the weighing hopper, the sensor sensing the gravity signal, and transmitting to the controller to calculate the weight value of the material in the weighing hopper, the controller has a set value built in, and waits until When the weight value reaches the set value, the vibration transmission unit is stopped. The coffee powder dosing machine of claim 1, wherein the vibrating conveying unit further comprises a vibrator electrically connected to the controller, a balance chassis located below, and a component disposed on the conveying rail and the balance An elastic member driven by the vibrator between the chassis, the controller controls the voltage frequency and amplitude of the voltage input to the vibrator, and adjusts the feeding speed of the vibrating conveying unit. The coffee powder dosing machine of claim 2, wherein the controller further has a threshold value less than the set value, wherein the controller drives the vibration conveying unit to be fast if the weight value is less than the threshold value Feeding, the controller drives the vibration delivery sheet when the weight value reaches the threshold value Yuan slowly feeds. The coffee powder dosing machine according to claim 3, wherein the controller further has a threshold value greater than the threshold value and less than the set value, and when the weight value reaches the critical value, the controller stops the vibration transmission. Unit, let some materials fall naturally to reach the set value. The coffee powder dosing machine according to claim 4, wherein the controller is configured to set a plurality of data of the set value, the threshold value and the threshold value for different categories, and adjust according to different material types. Enter the voltage of the vibrator. The coffee powder dosing machine of claim 1, wherein the vibrating conveying unit further comprises a feeding trough mounted on the conveying rail, the feeding trough receiving material from the storage hopper and having a hopper adjacent to the weighing hopper Discharge port. The coffee powder dispenser of claim 1, the coffee packaging machine further comprising a packaging unit for packaging the quantitative powder, the coffee powder dispenser further comprising a puller, the bucket is mounted on the scale Next to the hopper, and having a handle, and a pressure cylinder that drives the handle to lift and electrically connect the controller, the scale hopper has a hopper door with a lever, after the weight value of the material reaches the set value The controller drives the cylinder of the tractor to drive the handle to pull the lever to open the hopper door to drop the material to the packaging unit. The coffee powder dosing machine of claim 2, wherein the controller comprises a control circuit for adjusting a vibration frequency of the vibrator, and a display panel. The coffee powder dosing machine according to claim 1, wherein the damper is a hydraulic damper and has a piston connected to the weighing hopper, and a container for sliding the piston and containing a thick liquid. The coffee powder dosing machine of claim 1, wherein the sensor is a load cell.