A crushing device and a control method thereof

Abstract

The application provides a crushing device and a control method thereof, which comprises a crushing chamber closed by a cover, a blade assembly comprising a blade shaft and a blade arranged on the blade shaft, the blade being controlled to rotate with the blade shaft, the blade having a first state located inside the crushing chamber and a second state retracted away from the crushing chamber, and the blade having at least a first position and a second position when in the first state, the first position being different in height from the second position. The blade can be controlled to work at the first position and the second position different in height, so that pulp floating above juice can be juiced, and juice with better taste is obtained.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, specifically to a crushing device and its control method. Background Technology

[0002] Juicers and blenders are common household crushing devices. Most juicers consist of blades; when plugged in, an internal drive mechanism rotates the blades, thus cutting and juicing the fruits and vegetables inside.

[0003] However, as the blades rotate and blend, more and more fruit and vegetable juice is produced, forming a certain level of juice inside the blender. Some fruit pulp floats on top of this level. As the juice volume increases, the juice level rises, exceeding the position where the blades rotate. The floating pulp cannot be cut or impacted by the blades, resulting in insufficient juicing and affecting the taste of the juice. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the crushing device in the prior art cannot fully mix and crush, thereby providing a crushing device and its control method.

[0005] A crushing device, comprising:

[0006] The crushing chamber is sealed with a cover;

[0007] A blade assembly includes a cutter shaft and blades disposed on the cutter shaft, the blades being controlled to rotate by the cutter shaft, the blades having a first state located inside the crushing chamber and a second state retracted away from the crushing chamber;

[0008] When the blade is in the first state, it has at least a first position and a second position, wherein the first position and the second position are at different heights.

[0009] The cap is provided with a storage slot for accommodating the blade.

[0010] The cover extends a flange on the side facing the crushing chamber. The flange is annular and forms the receiving groove.

[0011] It also includes a drive mechanism, which comprises:

[0012] The first motor includes a first output shaft, which is connected to the cutter shaft and is used to control the rotation of the blade;

[0013] The second motor is used to control the height of the first motor and / or the cutter shaft, thereby controlling the blade to be positioned at different heights.

[0014] The drive mechanism also includes:

[0015] A base, disposed within the cover, is used to mount the first motor.

[0016] The second motor includes a second output shaft, on which a transmission block is provided, and the portion of the transmission block that connects with the base is provided with intermeshing threads.

[0017] The cap includes:

[0018] A guide support is provided inside the cover, and the guide support provides support for the first motor.

[0019] The guide support includes:

[0020] The first and second components are respectively supported in the direction of motion of the first motor, and the first and second components are symmetrically arranged on both sides of the first motor.

[0021] The first component and / or the second component are made of an elastic material.

[0022] The first component includes:

[0023] A guide post is provided on the inner wall of the cover and extends along the direction of movement of the first motor;

[0024] A guide sleeve is slidably fitted onto the guide post, and the guide sleeve is connected to the first motor.

[0025] Also includes:

[0026] A status monitoring device is installed on the cover and / or the crushing chamber to acquire blade status information;

[0027] A signal detection device is installed on the cover or the crushing chamber to detect user commands.

[0028] The status monitoring device includes:

[0029] A micro switch is located inside the cover, and the micro switch is controlled by the movement of the first motor.

[0030] The signal detection device includes:

[0031] A pressure sensor, located above the cover, is used to detect the user's action of pressing the start button.

[0032] A control method for a crushing device, the crushing device comprising a crushing chamber and blades, characterized in that it includes a plurality of crushing cycles, each crushing cycle comprising the following steps:

[0033] The blade is controlled to move toward the crushing chamber to a first position and rotates at a first rotation speed for a first preset time.

[0034] The blade is controlled to move toward the crushing chamber to a second position, and rotated at a second rotation speed for a second preset time, wherein the second position is lower than the first position;

[0035] The blade is controlled to return to the first position and rotated at a third rotation speed for a third preset time.

[0036] The first preset time is greater than the second preset time, and the first preset time is equal to the second preset time.

[0037] The first rotational speed is less than the second rotational speed, and the second rotational speed is less than the third rotational speed.

[0038] The technical solution of this invention has the following advantages:

[0039] 1. The present invention provides a crushing device, comprising: a crushing chamber, which is closed by a cover; a blade assembly, including a cutter shaft and a blade disposed on the cutter shaft, the blade being controlled to rotate by the cutter shaft, the blade having a first state located inside the crushing chamber and a second state retracted away from the crushing chamber; when the blade is in the first state, it has at least a first position and a second position, the first position and the second position being at different heights.

[0040] The blades can be controlled to operate at different heights in a first and second position, allowing them to effectively juice the pulp floating on top of the juice, resulting in a better-tasting juice.

[0041] 2. The crushing device provided by the present invention has a storage groove on the cover for accommodating the blade.

[0042] The blade is stored towards the cap, making it less likely to be accidentally touched by the user when it is near the cap or stored in the cap's storage slot.

[0043] 3. The present invention also provides a control method for a crushing device, applied to the crushing device described in any of the above embodiments, comprising: acquiring blade status information; determining whether the blade is in a first state or a second state based on the blade status information; acquiring a user's pressing action; when the blade is in the second state, the user presses a single start button, and the program controls the blade to extend to a first position, so that the blade changes to the first state; when the blade is in the first state, the user presses and holds the start button, and the program controls the blade to juice in a first crushing mode; when the blade is in the first state, the user double-clicks the start button, and the program controls the blade to juice in a second crushing mode.

[0044] Different crushing modes can be used to juice different fruits and vegetables according to different instructions, so that different fruits and vegetables can be juiced more fully.

[0045] 4. The control method provided by the present invention includes a first crushing mode comprising: the blade being in a first position and crushing juice at a rotation speed v1 for time t1, and then crushing juice at a rotation speed v2 for time t2.

[0046] The first crushing mode is for juicing fruits with relatively soft flesh, such as mangoes and rubber fruits.

[0047] 5. The control method provided by the present invention includes a second crushing mode comprising: a first stage in which the blade is in a first position and crushes juice at a rotation speed v3 for a time t3; a second stage in which the blade is moved to a second position and then crushes juice at a rotation speed v4 for a time t4; and a third stage in which the blade is moved to the first position and then crushes juice at a rotation speed v5 for a time t5, and then crushes juice at a rotation speed v6 for a time t6.

[0048] The second crushing mode is for fruits and vegetables where the pulp tends to float on top of the juice, such as oranges with a lot of fluffy pulp, celery with a lot of fiber, or fruits and vegetables with relatively firm pulp.

[0049] 6. In the control method provided by the present invention, when the blade is in the first state, the user clicks the start button, and the program controls the blade to retract to the second state.

[0050] After juicing is complete, although the blades stop rotating, they remain suspended in the first state, making it easy for users to accidentally touch them when opening the lid. This design allows the blades to be retracted to the second state based on the indication from the single-machine start button, improving the safety performance of the crushing device.

[0051] 7. The control method provided by the present invention determines the time T since the last stop of the blade; when T reaches a preset standby threshold, the program controls the blade to retract to the second state.

[0052] If the user does not open the lid promptly after juicing, the blades will remain in the juice. This solution determines when the blades have stopped rotating and uses a program to automatically retract them, preventing the user from forgetting to retract the blades before opening the lid after a certain period of juicing.

[0053] 8. The control method provided by this invention determines whether the blade is working; when the blade is working, the user's instruction to retract the blade by clicking the start button is invalid.

[0054] To prevent users from accidentally pressing the start button during the operation of the crushing device, and to prevent the drive mechanism from being damaged by the retraction of the blades during rotation. Attached Figure Description

[0055] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0056] Figure 1 This is a schematic diagram of the blade in the first position in this invention;

[0057] Figure 2 This is a schematic diagram of the blade in the second position in this invention;

[0058] Figure 3 This is a schematic diagram of the blade in the second state in this invention;

[0059] Figure 4 This is a schematic diagram illustrating the structure of the drive mechanism;

[0060] Figure 5 This is a schematic diagram of another embodiment of the present invention when the blade is in the second state.

[0061] Explanation of reference numerals in the attached figures:

[0062] 1. Crushing chamber; 2. Cover; 21. Control panel; 22. Button assembly; 23. Storage slot; 24. Flange; 3. Blade assembly; 31. Blade; 32. Cutter shaft; 4. First motor; 41. First output shaft; 42. Base; 5. Second motor; 51. Second output shaft; 52. Transmission block; 6. Guide support. Detailed Implementation

[0063] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0064] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0065] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0066] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0067] Example 1

[0068] This embodiment provides a crushing device, such as... Figure 1 - Figure 3 As shown, the system includes: a crushing chamber 1, sealed by a cover 2; and a blade assembly 31, including a cutter shaft 32 and blades 31 mounted on the cutter shaft 32. The blades 31 are controlled to rotate by the cutter shaft 32. The blades 31 have a first state located inside the crushing chamber 1 and a second state retracted away from the crushing chamber 1. When in the first state, the blades 31 have at least a first position and a second position, with the first and second positions at different heights. The blades 31 can be controlled to operate at the first and second positions at different heights, thereby enabling them to juice fruit pulp floating above the juice, resulting in a better-tasting juice.

[0069] In this embodiment, as Figure 1 , Figure 2 As shown, the blade 31 has a first position and a second position in the first state, two positions with different heights, wherein the height of the blade 31 in the first position is lower than the height of the second position. Therefore, when the blade 31 is juicing in the first position, the floating pulp and fibrous material can be fully processed when the blade 31 rises to the second position. As an alternative implementation, the blade 31 in the first state can also be programmed to have multiple positions with different heights, such as a third position, a fourth position, etc., according to different needs.

[0070] In this embodiment, by controlling the height of the blade 31, the state where the blade 31 is close to or near the cap 2 is defined as the second state. In this state, the height of the blade 31 is insufficient for juicing. Figure 3As shown, the blade 31 rises to a height close to the cover 2, at which point the blade 31 is relatively far from the bottom of the crushing chamber 1. Juicing of fruits and vegetables piled up in the crushing chamber 1 is not possible. However, because the extended length of the blade 31 (i.e., the distance from the cover 2) is reduced, the space swept by the blade 31 as it moves with the cover 2 when the cover 2 is opened is smaller, making it less likely for the user to accidentally touch the blade 31. As an alternative implementation, such as... Figure 5 As shown, the cover 2 has a storage groove 23 for accommodating the blade 31. A flange 24 extends from the side of the cover 2 facing the crushing chamber 1. The flange 24 is annular and forms the storage groove 23. When the blade 31 is retracted towards the cover 2, close to the cover 2, or stored within the storage groove 23 of the cover 2, it is less likely to be accidentally touched by the user.

[0071] In this embodiment, as Figure 4 As shown, a drive mechanism is provided inside the cover 2. The drive mechanism includes: a first motor 4, including a first output shaft 41, which is connected to the cutter shaft 32 and is used to control the rotation of the blade 31; and a second motor 5, which is used to control the height of the first motor 4 and / or the cutter shaft 32, thereby controlling the blade 31 to be located at different heights.

[0072] Among them, such as Figure 4 As shown, the drive mechanism further includes: a base 42 disposed within the cover 2, the base 42 being used to mount the first motor 4; the second motor 5 includes a second output shaft 51, on which a transmission block 52 is provided, the portion of the transmission block 52 that engages with the base 42 having meshing threads. As an alternative implementation, the transmission block 52 can be replaced with a sprocket, and the base 42 can be replaced with a chain. Alternatively, the second motor 5 can be replaced with an electric cylinder.

[0073] Among them, such as Figure 4 As shown, the cover 2 includes a guide support 6 disposed inside the cover 2, which provides support for the first motor 4. The guide support 6 includes a first part and a second part, which respectively support the first motor 4 in the direction of movement. The first part and the second part are symmetrically disposed on both sides of the first motor 4. The first part and / or the second part are made of an elastic material.

[0074] In this embodiment, as Figure 4As shown, both the first and second components are springs, providing support for the base 42 and undergoing elastic compression under the drive of the second motor 5. As an alternative implementation, both the first and second components can be replaced with: a guide post, located on the inner wall of the cover 2 and extending along the direction of movement of the first motor 4; and a guide sleeve, slidably fitted onto the guide post, the guide sleeve being connected to the first motor 4.

[0075] In this embodiment, as Figure 4 As shown, it also includes: a status monitoring device, installed on the cover 2, for acquiring the status information of the blade 31; and a signal detection device, installed on the cover 2 or the crushing chamber 1, for detecting user commands. A control panel 21 is located on the cover 2, and a button assembly 22 is provided on the top of the cover 2. All button assemblies 22 are connected to the control panel 21, and the button assemblies 22 protrude relative to the top surface of the cover 2 for easy user operation. The button assembly 22 includes a start button for controlling the operation of the blade 31. As an alternative implementation, the status monitoring device is located on the side wall of the crushing chamber 1.

[0076] In this embodiment, the status monitoring device includes a microswitch disposed within the cover 2, the microswitch being controlled by the movement of the first motor 4. As an alternative implementation, several limit switches can be installed on the inner wall of the space inside the cover 2, all of which are triggered by a rotational action. When the base 42 rises or falls, the limit switches located at different heights are sequentially activated to determine the different height positions of the blade 31.

[0077] Among them, such as Figure 4 As shown, the signal detection device includes a pressure sensor located above the cover 2, used to detect the user's action of pressing the start button.

[0078] Example 2

[0079] A control method for a crushing device, applied to the crushing device of Embodiment 1, includes: acquiring blade 31 status information; determining whether the blade 31 is in a first state or a second state based on the blade 31 status information; acquiring a user's pressing action; when the blade 31 is in the second state, the user presses the start button, and the program controls the blade 31 to extend to a first position, thus changing the blade 31 to the first state; when the blade 31 is in the first state, the user presses and holds the start button, and the program controls the blade 31 to juice in a first crushing mode; when the blade 31 is in the first state, the user double-clicks the start button, and the program controls the blade 31 to juice in a second crushing mode. By using different crushing modes according to different instructions, different fruits and vegetables can be juiced more thoroughly.

[0080] The first crushing mode includes: blade 31 is in the first position, juicing at speed v1 for time t1, and then juicing at speed v2 for time t2. The first crushing mode is for juicing fruits with relatively soft flesh, such as mangoes and rubber fruits.

[0081] In this embodiment, v1 is greater than v2. Where t1 is 30s and t2 is 10s.

[0082] The second crushing mode includes: in the first stage, the blade 31 is in the first position and juices at a speed of v3 for 20 seconds to chop the pulp; in the second stage, the blade 31 moves up to the second position and then juices at a speed of v4 for 10 seconds to chop the floating pulp again. As the blade 31 moves up closer to the top of the cup, the floating pulp will sink due to the impact of the liquid and the top of the cup; in the third stage, the blade 31 moves down to the first position and then juices at a speed of v5 for 10 seconds, and then juices at a speed of v6.

[0083] At the end of the third stage, the juicing time at speed V6 can be determined by the user based on the desired juicing level. Because in the second stage, the floating fibers and pulp have been thoroughly processed, and blade 31 has been re-juiced at speed V5 for 10 seconds in the first position, the floating fibers and pulp have been largely eliminated. At this point, a relatively low speed of V6 can be used for even mixing to improve the texture of the juice.

[0084] In this embodiment, v1 = v3 = v6 > v2 = v4 = v5.

[0085] The control method for the blade 31 to rise to the second state is not specifically limited. In this embodiment, when the blade 31 is in the first state, the user clicks the start button, and the program controls the blade 31 to retract to the second state. After juicing is complete, although the blade 31 no longer rotates, it remains suspended in the first state, making it easy for the user to accidentally touch the blade 31 when opening the cover 2. In this solution, the blade 31 can be controlled to retract to the second state according to the indication of the single-machine start button, improving the safety performance of the crushing device.

[0086] The process involves determining the time T since the last stop of blade 31. When T reaches a preset standby threshold, the program controls blade 31 to retract to a second state. In this embodiment, T is 5 minutes. If the user does not open the cap 2 promptly after juicing, blade 31 remains in the juice. This solution uses the time since blade 31 stopped rotating to automatically retract blade 31, preventing the user from forgetting to retract blade 31 before opening the cap 2 after juicing has been completed for a certain period.

[0087] In this embodiment, it is determined whether the blade 31 is working; when the blade 31 is working, the user's instruction to retract the blade 31 by clicking the start button is invalid. This prevents the user from accidentally pressing the start button during the operation of the crushing device and prevents the blade 31 from being retracted during rotation and damaging the drive mechanism.

[0088] When blade 31 is in the first crushing mode, the user presses and holds the start button, and the program controls blade 31 to pause its operation. When blade 31 is in the second crushing mode, the user double-clicks the start button, and the program controls blade 31 to pause its operation.

[0089] In this embodiment, a juicer is used as an example of the crushing device. As an alternative implementation, the crushing device can also be a high-speed blender.

[0090] In this embodiment, the crushing cycle refers to different crushing modes for different objects. In this embodiment, fruits and vegetables are used as examples of different objects. The mode refers to the preset time for which the blade operates at a set rotation speed in different positions. The rotation speed and time can be used with preset settings stored in the system, or they can be controlled by the user's own experience.

[0091] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A crushing device, characterized in that, include: The crushing chamber (1) is sealed by a cover (2); The blade assembly (3) includes a cutter shaft (32) and a blade (31) disposed on the cutter shaft (32). The blade (31) is controlled to rotate by the cutter shaft (32). The blade (31) has a first state located inside the crushing chamber (1) and a second state located away from the crushing chamber (1). When the blade (31) is in the first state, it has at least a first position and a second position. The first position and the second position are at different heights. The cover (2) is provided with a receiving groove (23) for accommodating the blade (31). The cover (2) has a flange (24) extending from the side facing the crushing chamber (1). The flange (24) is annular and forms the receiving groove (23). The blade (31) is received towards the cover (2) and stored in the receiving groove (23) of the cover (2). Determine the time T since the last stop of the blade (31); when T reaches the preset standby threshold, the program controls the blade (31) to retract to the second state; Determine whether the blade (31) is working; when the blade (31) is working, the user's instruction to retract the blade (31) by clicking the start button is invalid.

2. The crushing device according to claim 1, characterized in that, It also includes a drive mechanism, which comprises: The first motor (4) includes a first output shaft (41), which is connected to the cutter shaft (32) and is used to control the rotation of the blade (31); A base (42) is disposed within the cover (2), the base (42) being used to mount the first motor (4): The second motor (5) includes a second output shaft (51), on which a transmission block (52) is provided. The transmission block (52) is provided with a threaded connection with the base (42) to control the height of the first motor (4) and / or the cutter shaft (32).

3. The crushing device according to claim 2, characterized in that, Also includes: A guide support (6) is provided inside the cover (2), and the guide support (6) provides support for the first motor (4).

4. The crushing device according to claim 3, characterized in that, The guide support (6) includes: The first and second components are respectively supported in the direction of motion of the first motor (4), and the first and second components are symmetrically arranged on both sides of the first motor (4).

5. The crushing device according to claim 4, characterized in that, The first component and / or the second component are made of an elastic material.

6. The crushing device according to claim 4, characterized in that, The first component includes: The guide post is located on the inner wall of the cover (2) and extends along the direction of movement of the first motor (4); A guide sleeve is slidably fitted on the guide post, and the guide sleeve is connected to the first motor (4).

7. The crushing device according to claim 2, characterized in that, Also includes: A micro switch is located inside the cover (2). The micro switch is positioned in front of the movement path of the first motor (4). The first motor (4) is adapted to trigger the micro switch during movement.

8. The crushing device according to claim 2, characterized in that, Also includes: A pressure sensor is located above the cover (2) and connected to the second motor (5) to detect the user's action of pressing the start button.

9. A control method for a crushing device, the crushing device comprising a crushing chamber and blades, characterized in that, It includes several crushing cycles, and each crushing cycle includes the following steps: The blade is controlled to move toward the crushing chamber to a first position and rotates at a first rotation speed for a first preset time. The blade is controlled to move toward the crushing chamber to a second position, and rotated at a second rotation speed for a second preset time, wherein the second position is lower than the first position; The blade is controlled to return to the first position and rotated at a third rotation speed for a third preset time.

10. The control method according to claim 9, characterized in that, The first preset time is greater than the second preset time, and the first preset time is equal to the second preset time.

11. The control method according to claim 9 or 10, characterized in that, The first rotational speed is less than the second rotational speed, and the second rotational speed is less than the third rotational speed.

Images