A control method for a food processing machine

Abstract

The present invention provides a control method for a food processing machine, the food processing machine comprising a cup body for food processing, a slurry receiving cup for holding food, and a wastewater box for collecting wastewater. The food or wastewater in the cup body is discharged into the slurry receiving cup or the wastewater box through a slurry discharge rotary valve. The slurry discharge rotary valve comprises a slurry discharge pipe, a valve core, and a driving device for driving the valve core. The slurry discharge rotary valve is provided with a position detection device for detecting the position of the valve core. The cup body is provided with a slurry discharge hole. The slurry discharge pipe is driven by the valve core. The valve core is provided with a connecting inlet hole that matches the slurry discharge hole. The valve core is provided with a connecting outlet hole that communicates with the connecting inlet hole. The connecting outlet hole is normally connected to the slurry discharge pipe. The position detection device detects whether the connecting inlet hole and the slurry discharge hole of the valve core are in a conducting state or a non-conducting state. The valve core is used to drive the slurry discharge pipe to rotate and select the corresponding slurry discharge position, thereby reducing the step of the rotary valve motor directly driving the slurry discharge pipe position, simplifying the control, and improving the reliability of the product.

Description

Technical Field

[0001] The invention relates to small kitchen appliances, in particular to a control method for a food processor. Background Art

[0002] Kitchen appliances have always required too much human intervention, making it difficult for people to free themselves from the kitchen. With the continuous development of science and technology, more and more intelligent technologies have been applied to kitchen appliances. In order to free people from the process of food processing to the greatest extent, a self-cleaning food processor has emerged.

[0003] It is necessary to have a corresponding water supply device, a processing chamber, a slurry receiving cup for holding prepared food, and a wastewater box for collecting cleaning water. A slurry discharge hole is provided at the bottom or bottom side of the processing chamber, and a slurry discharge rotary valve for closing and opening the slurry discharge hole is provided at the slurry discharge hole. The slurry discharge rotary valve is used to discharge the material in the processing chamber into the slurry receiving cup or the wastewater box. The output end of the slurry discharge rotary valve is provided with a corresponding slurry discharge pipe. When the original material is processed in the processing chamber, the slurry discharge rotary valve is closed. After the corresponding food processing is completed or when the food in the processing chamber needs to be discharged, the slurry discharge rotary valve is opened, and it is ensured that the slurry discharge pipe is in the position of the slurry receiving cup, so that the food in the processing chamber flows into the slurry receiving cup; when cleaning, the slurry discharge rotary valve is also closed. When cleaning is completed or the cleaning water needs to be discharged, the slurry discharge rotary valve needs to be turned to the wastewater box position, and then the slurry discharge rotary valve is opened to ensure that the cleaning water is discharged into the wastewater box.

[0004] During this process, the slurry discharge rotary valve is driven by a motor. The slurry discharge rotary valve is provided with at least a valve plate for closing and opening the slurry discharge hole and a valve plate for driving the slurry discharge pipe to rotate. The two valve plates require a suitable gear ratio and program coordination during control to complete the opening and closing of the slurry discharge hole and the determination of the position of the slurry discharge pipe. This puts higher design requirements on the valve plate and the electronic control, and the corresponding design cost is also increased. The increased control difficulty increases the risk of failure of the product during operation, which will bring greater trouble to users.

[0005] To address this issue, an improved solution has emerged: placing the slurry receiving cup on top of the wastewater box, thereby fixing the position of the slurry discharge pipe. This eliminates the need for the valve disc that changes the position of the slurry discharge pipe and simplifies the drive method for the slurry discharge rotary valve, requiring only the opening and closing of the slurry discharge hole. However, this method requires the user to remove the corresponding slurry receiving cup before draining the wastewater, which is inconvenient for the user and also poses a risk of wastewater being discharged into the slurry receiving cup. Summary of the Invention

[0006] The object to be achieved by the present invention is to provide a control method for a food processing machine which can realize simple control.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a control method of a food processing machine, the food processing machine includes a cup body for food processing, a slurry receiving cup for holding food and a wastewater box for collecting wastewater, the food or wastewater in the cup body is discharged into the slurry receiving cup or the wastewater box through a slurry discharge rotary valve, the slurry discharge rotary valve includes a slurry discharge pipe, a valve core and a driving device for driving the valve core, characterized in that the slurry discharge rotary valve is provided with a position detection device for detecting the position of the valve core, the cup body is provided with a slurry discharge hole, the slurry discharge pipe is driven by the valve core, the valve core is provided with a connecting inlet hole matching the slurry discharge hole, the valve core is also provided with a connecting outlet hole connected to the connecting inlet hole, and the connecting outlet hole is normally connected with the slurry discharge pipe; the position detection device is used to detect whether the connecting inlet hole and the slurry discharge hole of the valve core are in a conducting state or a non-conducting state; when the food processing machine is discharging slurry or discharging wastewater, the valve core moves to a conducting state; when the food processing machine is in a working state, the valve core moves to a non-conducting state.

[0008] Furthermore, the position detection device includes a detection plate and an induction magnet provided on the valve core and cooperating with the detection plate to detect the position of the valve core.

[0009] Furthermore, the induction magnet is located at the connecting inlet hole, and the detection plate includes a first detection plate arranged near the slurry discharge hole and a second detection plate arranged away from the slurry discharge hole. When the first detection plate detects the induction magnet, the slurry discharge valve is turned on, and when the second detection plate detects the induction magnet, the slurry discharge valve is closed.

[0010] Furthermore, the induction magnet includes a first induction magnet arranged at the connecting inlet position, and a second induction magnet arranged away from the connecting inlet position. The detection plate determines the conduction and closing of the slurry discharge valve by detecting and distinguishing the first induction magnet and the second induction magnet.

[0011] Furthermore, the induction magnet includes a first induction magnet arranged at the connecting inlet position, and a second induction magnet arranged at a position away from the connecting inlet position. The detection plate includes a first detection plate arranged near the slurry discharge hole position, and a second detection plate arranged at a position away from the slurry discharge hole position. The first induction magnet cooperates with the first detection plate to detect and determine that the slurry discharge rotary valve is turned on, and the second induction magnet cooperates with the second detection plate to detect and determine that the slurry discharge rotary valve is turned on.

[0012] Furthermore, the valve core and the slurry discharge pipe can move relative to each other. When the slurry discharge pipe moves to the slurry receiving or wastewater discharge position, the slurry discharge pipe no longer rotates, and the valve core continues to move to the conducting state position to connect the connecting inlet hole and the slurry discharge hole.

[0013] Furthermore, the slurry discharge pipe includes a slurry discharge position and a wastewater discharge position, and the slurry discharge pipe is driven by a valve core to switch between the slurry discharge position and the wastewater discharge position to achieve corresponding slurry discharge or wastewater discharge.

[0014] Furthermore, after the food processor is powered on or a function program is started, the pulp discharge rotary valve is detected and driven to be in a closed position;

[0015] Alternatively, after the food processor is powered on or a function program is started, the driving device drives the valve core to move, so that the valve core passes through the pulp discharge rotary valve conduction position at least once and then moves to the pulp discharge rotary valve closing position.

[0016] The valve core is used to drive the discharge pipe to rotate and select the corresponding discharge position. Compared with the existing technology, this reduces the step of directly driving the discharge pipe position with the rotary valve motor, thus reducing the corresponding drive gears and reducing the corresponding costs. At the same time, the number of accessories is reduced, and the corresponding failures caused by accessory failure and problems with the coordination of accessories are eliminated, thereby improving the reliability of the product. At the same time, in terms of control, the control program design for the discharge pipe is also eliminated, simplifying the corresponding process, thus simplifying the corresponding algorithm design, effectively reducing the control error rate, and also improving the reliability of the product.

[0017] The valve core and the slurry discharge pipe are designed to be rotatably connected to each other. When the slurry discharge pipe is rotated to the required position, the valve core can continue to rotate to connect the slurry discharge rotary valve. This makes it easier to design the position of the slurry discharge pipe and ensure that the slurry discharge rotary valve is in a closed state when the slurry discharge pipe is rotated. In other words, the slurry discharge pipe rotates with the valve core when the slurry discharge rotary valve is not connected. This avoids the slurry discharge pipe rotating when the slurry discharge rotary valve is connected, thereby causing slurry or wastewater to be discharged randomly. In other words, when the slurry discharge pipe is not rotated to the corresponding position, the slurry discharge hole will not be connected to the slurry discharge pipe. This linkage setting ensures the determination of the slurry discharge and waste discharge positions and simplifies the structure.

[0018] The limiting structure on the slurry discharge pipe is used to ensure that the slurry discharge pipe is in a specific position, especially in the two positions. On the one hand, the movement range of the slurry discharge pipe can be limited, and on the other hand, it can be ensured to be in a specific position. At the same time, it is also convenient to design the matching method between the valve core and the slurry discharge pipe, so that the structural design can be more simplified and effective. In addition, when controlling, it is only necessary to define the meaning of the rotation direction in advance. Then, during the working process, the rotation can be controlled in the established direction when needed. For example, the slurry discharge is defined as clockwise rotation and the wastewater discharge is defined as counterclockwise rotation. When slurry discharge is required, it is only necessary to control the valve core to work clockwise. The slurry discharge pipe will no longer rotate due to the limit after it follows the slurry discharge position, and vice versa. At the same time, the slurry discharge pipe and the valve core are in a normal connected state. It is only necessary to control the valve core to be connected to the slurry discharge hole of the cup body to achieve the corresponding slurry discharge or wastewater discharge. The control is simple and effective. In addition, the distance between the two stop protrusions set on the slurry discharge pipe is no more than 90°, which is equivalent to limiting the movement range of the slurry discharge pipe, ensuring that the slurry discharge pipe can move from one specific position to another specific position when the rotary valve is closed and the rotary valve is on, that is, the slurry discharge position to the wastewater discharge position, or from the wastewater discharge position to the slurry discharge position. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings:

[0020] Figure 1 It is a structural schematic diagram of an embodiment of a control method for a food processing machine of the present invention;

[0021] Figure 2 A schematic diagram of a pulp discharge rotary valve and its installation structure according to an embodiment of a control method for a food processing machine of the present invention;

[0022] Figure 3 A schematic diagram of the structure of a pulp discharge rotary valve according to an embodiment of a control method for a food processing machine of the present invention;

[0023] Figure 4 A schematic diagram of the structure of a pulp discharge pipe of an embodiment of a control method for a food processing machine according to the present invention;

[0024] Figure 5 A schematic diagram of the position state of a pulp discharge rotary valve in an embodiment of a control method for a food processing machine according to the present invention;

[0025] Figure 6 A schematic diagram of the position state of a pulp discharge rotary valve in an embodiment of a control method for a food processing machine according to the present invention;

[0026] Figure 7 A schematic diagram of the position state of a pulp discharge rotary valve in an embodiment of a control method for a food processing machine according to the present invention;

[0027] Figure 8This is a schematic diagram of the position status of the pulp discharge rotary valve in an embodiment of the control method for a food processing machine of the present invention. DETAILED DESCRIPTION

[0028] Example:

[0029] like Figure 1 The figure shows a schematic diagram of the structure of the food processor of the present invention. It includes a cup body 1 for food processing, a motor disposed at the bottom of the cup body, the motor shaft of which passes through the bottom of the cup body 1 and is connected to a crushing blade disposed within the cup body 1. The cup body 1 is provided with a cup cover 11, the bottom of which forms an upwardly concave auxiliary cavity. The auxiliary cavity and the cup body together form a food processing area for material crushing. Of course, the cup cover can also be a flat cover, and the cup cover and the cup body cooperate to form the crushing processing area. The food processor is also provided with a water tank 2, which supplies water to the cup body 1 for food processing and can also provide water for cleaning the food processing area.

[0030] The food processor is equipped with a slurry receiving cup 3 for receiving food and a wastewater box 4 for collecting cleaning wastewater. Prepared food or cleaning wastewater in the cup 1 is discharged into the slurry receiving cup 3 or the wastewater box 4 through a slurry discharge rotary valve 5 located at the bottom of the cup. The cup is provided with a slurry discharge hole, which is connected to the slurry discharge rotary valve 5, thereby draining the food or cleaning wastewater in the cup. The slurry discharge rotary valve 5 allows the user to select whether to discharge the food into the slurry receiving cup or the cleaning wastewater into the wastewater box.

[0031] like Figure 2 、 Figure 3 As shown, specifically, in this embodiment, the slurry discharge rotary valve includes a slurry discharge pipe 51 and a valve core 52. The valve core 52 is provided with a connecting inlet hole 521 and a connecting outlet hole 522. The connecting inlet hole 521 and the connecting outlet hole 522 are connected to form a through hole of the valve core 52. The connecting outlet hole 522 is normally connected with the slurry discharge pipe 51. The connecting inlet hole 521 cooperates with the slurry discharge hole on the cup body 1. Through the rotation of the valve core 52, the connecting inlet hole 521 and the slurry discharge hole are in a conducting state or a non-conducting state. When discharging slurry or wastewater, the connecting inlet hole 521 and the slurry discharge hole are in a conducting state. When the food processor is in working state, the connecting inlet hole 521 and the slurry discharge hole are in a non-conducting state.

[0032] Specifically, such as Figure 2-Figure 3 As shown, a driving motor 53 is further provided for driving the valve core 52 to rotate. The valve core 52 is arranged in the rotary valve housing 50 and is restricted in the rotary valve housing 50 by the rotary valve cover 54. In this embodiment, the valve core 52 is a rotary cylinder, the valve core 52 has a central rotation axis, and the valve core 52 is an inner hollow channel. The starting end of the inner hollow channel is the connecting inlet hole 521, and the ending end of the inner hollow channel is the connecting outlet hole 522.

[0033] The valve core 52 can rotate circumferentially in the rotary valve housing 50, and the rotating shaft of the drive motor 53 passes through the rotary valve cover 54 to drive the valve core 52, thereby driving the valve core 52 to rotate. Of course, the drive motor 53 can be directly installed on the rotary valve cover 54, and the motor shaft of the drive motor directly acts on the valve core. Of course, the motor shaft of the drive motor can also drive the rotation of the valve core through the drive gear. There are many ways to drive the motor and how to drive the valve core to rotate, which will not be elaborated in this embodiment. Of course, the drive motor can also be installed in other positions of the food processor, so that the valve core is driven to rotate through the connecting shaft or the conversion shaft.

[0034] Since the slurry discharge pipe 51 and the communication outlet hole 522 on the valve core 52 are always connected, the opening and closing of the slurry discharge rotary valve depends on the position of the communication inlet hole 521 on the valve core 52. Therefore, a sensing magnet 58 is provided on the valve core 52 for detecting the valve core position. The corresponding rotary valve system is provided with a Hall effect detection plate 59 for cooperating with the sensing magnet to detect the valve core position. In this embodiment, the valve core is provided with two sensing magnets, one of which is located at the same position as the communication inlet hole 521, or corresponding to the center of the communication inlet hole 521, and the second sensing magnet is located symmetrically with the first sensing magnet. The Hall effect plate can be placed at the communication inlet hole or at the opposite position. Generally, for ease of installation, the Hall effect plate is placed opposite the communication inlet hole. When the Hall effect plate detects the first sensing magnet, it indicates that the communication inlet hole is away from the slurry discharge hole on the cup body, and the rotary valve is in the closed state. When the Hall effect plate detects the second sensing magnet, it indicates that the first sensing magnet has returned to the slurry discharge hole position, and the rotary valve is in the open state, which is used for slurry discharge. Simultaneously, such design also facilitates that the valve core has enough time to drive the pulp discharge pipe 51 to the corresponding position. In other words, when the valve core has enough strokes to ensure that the pulp discharge rotary valve rotates, the communication inlet hole is not communicated with the pulp discharge hole.

[0035] Because the function of the pulp discharge rotary valve is to discharge objects from the cup body, whether it is prepared food or cleaning waste water, that is to say, the pulp discharge pipe must be connected to the pulp discharge hole, and when the valve core drives the pulp discharge rotary valve to rotate, the pulp discharge pipe and the pulp discharge hole are not connected, that is to say, at least when the pulp discharge pipe and the pulp discharge hole are connected, the pulp discharge pipe is stationary, that is, after the valve core drives the pulp discharge pipe to rotate to a certain position, the pulp discharge pipe no longer rotates, and the valve core continues to rotate, so that the connecting inlet hole of the valve core is connected to the pulp discharge hole, and finally the pulp discharge pipe is connected to the pulp discharge hole to discharge the objects in the cup body. In this embodiment, the pulp discharge pipe is at the pulp receiving cup position, that is, the pulp discharge position, and the pulp discharge pipe is at the waste water box position, that is, the waste discharge position, so the pulp discharge position and the pulp discharge pipe at the pulp receiving cup position have the same meaning, and the waste discharge position and the pulp discharge pipe at the waste water box position have the same meaning.

[0036] The slurry discharge pipe 51 is cooperatively connected with the valve core 52 . When the communicating inlet hole 521 and the slurry discharge hole are in a non-conducting state, the slurry discharge pipe 51 can rotate along with the valve core 52 .

[0037] Specifically, the slurry discharge pipe 51 is rotatably connected to the valve core 52. The valve core 52 is provided with a groove 523 for clamping the slurry discharge pipe 51. The slurry discharge pipe 51 is provided with a buckle protrusion 513 that cooperates with the groove 523. The buckle protrusion 513 is clamped on the groove 523. Without being affected by other external forces, the valve core 52 drives the slurry discharge pipe 51 to rotate. In this embodiment, Figure 4 As shown, the slurry discharge pipe 51 is also provided with a stopper 512, which cooperates with a corresponding structure on the valve body to limit the area where the slurry discharge pipe can rotate. This allows the slurry discharge pipe to rotate with the valve core 52 when the communication inlet hole 521 and the slurry discharge hole are not connected, and ensures that the slurry discharge pipe remains in a fixed position when the communication inlet hole 521 and the slurry discharge hole are connected.

[0038] The food processing machine has a pulp discharge position and a waste water discharge position, and the pulp discharge pipe rotates and switches between the pulp discharge position and the waste water discharge position to achieve corresponding pulp discharge or waste water discharge. Figure 5-8 As shown, the rotary valve housing 50 is provided with a stop plate 502 that cooperates with a stop projection 512. When the stop projection 512 moves to the stop plate 502, it is prevented from further movement by the stop plate, thereby moving to the desired pulp discharge position or wastewater discharge position. The pulp discharge pipe reciprocates within the range defined between the pulp receiving cup position and the wastewater box position to switch between pulp discharge and wastewater discharge.

[0039] In this embodiment, the slurry discharge pipe 51 has two stop protrusions, which correspond to the slurry discharge position and wastewater discharge position of the slurry discharge pipe respectively. Figure 5 and Figure 6 As shown, when the valve core 52 rotates and drives the slurry discharge pipe to the slurry discharge position, the stop protrusion 512 cooperates with the stop baffle 502 on the rotary valve housing 50, so that the slurry discharge pipe remains in the slurry discharge position, that is, the slurry discharge pipe is located at the slurry receiving cup position. Figure 7 and Figure 8 As shown, when the valve core 52 rotates and drives the slurry discharge pipe to the wastewater discharge position, the stop protrusion 512 cooperates with the stop baffle 502 on the rotary valve housing 50, so that the slurry discharge pipe remains in the wastewater discharge position, that is, the slurry discharge pipe is located in the wastewater box position.

[0040] Specifically, in this embodiment, the wastewater box is located directly behind the pulp receiving cup, and the two stop bumps are spaced 90 degrees apart. During food processing, the valve core is first rotated one full circle to ensure that the valve core is in the rotary valve closed state, that is, the connection between the inlet hole and the pulp discharge hole is in a non-conductive state, and the pulp discharge pipe is simultaneously ensured to be in a maintained state, that is, in the pulp discharge position or wastewater discharge position. This can be determined on a specific food processing machine.

[0041] If the food processing machine control valve core rotates clockwise, when the slurry discharge pipe no longer follows the rotation of the valve core, the slurry discharge pipe is in the slurry receiving position. At this time, when the control valve core rotates counterclockwise, when the slurry discharge pipe no longer follows the rotation of the valve core, the slurry discharge pipe is in the wastewater discharge position.

[0042] When the food processor completes pulping, the valve core is controlled to rotate clockwise until it detects that the connecting inlet hole and the discharge hole are connected. At this time, if the discharge pipe is in the discharge position, the discharge pipe cannot follow the rotation of the valve core due to the presence of the stop block. Therefore, the discharge pipe is always in the discharge position, thereby ensuring smooth discharge. At this time, if the discharge pipe is in the wastewater discharge position, the discharge pipe will follow the rotation of the valve core until the discharge pipe rotates to the discharge position. Because the distance between the two positions is 180° when the valve core position is detected, the difference between the stop blocks is less than the angle, which can ensure that when the connecting inlet hole and the discharge hole are connected, the discharge valve is in a fixed position. That is to say, only when the connecting inlet hole and the discharge hole are not connected, the discharge pipe follows the rotation of the valve core.

[0043] When the food processing machine needs to discharge waste water, the valve core is controlled to rotate counterclockwise until it detects that the connecting inlet hole and the slurry discharge hole are connected. At this time, if the slurry discharge pipe is in the waste water discharge position, the slurry discharge pipe cannot follow the rotation of the valve core due to the presence of the stop block. Therefore, the slurry discharge pipe is always in the waste water discharge position, thereby ensuring smooth waste water discharge; at this time, if the slurry discharge pipe is in the slurry discharge position, the slurry discharge pipe will follow the rotation of the valve core until the slurry discharge pipe rotates to the waste water discharge position. Similarly, because the distance between the two positions is 180° when the valve core position is detected, the difference between the stop blocks is less than the angle, which can ensure that when the connecting inlet hole and the slurry discharge hole are connected, the slurry discharge rotary valve is in a fixed position. That is to say, only when the connecting inlet hole and the slurry discharge hole are not connected, the slurry discharge pipe follows the rotation of the valve core.

[0044] If the food processing machine control valve core rotates clockwise, when the discharge pipe no longer follows the valve core rotation, the discharge pipe is in the wastewater discharge position. At this time, when the control valve core rotates counterclockwise, when the discharge pipe no longer follows the valve core rotation, the discharge pipe is in the discharge position.

[0045] When the food processor completes pulping, the valve core is controlled to rotate counterclockwise until it detects that the connecting inlet hole and the discharge hole are connected. At this time, if the discharge pipe is in the discharge position, the discharge pipe cannot follow the rotation of the valve core due to the presence of the stop block. Therefore, the discharge pipe is always in the discharge position, thereby ensuring smooth discharge. At this time, if the discharge pipe is in the wastewater discharge position, the discharge pipe will follow the rotation of the valve core until the discharge pipe rotates to the discharge position. Because the distance between the two positions is 180° when the valve core position is detected, the difference between the stop blocks is less than the angle, which can ensure that when the connecting inlet hole and the discharge hole are connected, the discharge valve is in a fixed position. That is to say, only when the connecting inlet hole and the discharge hole are not connected, the discharge pipe follows the rotation of the valve core.

[0046] When the food processing machine needs to discharge waste water, the control valve core rotates clockwise until it detects that the connecting inlet hole and the slurry discharge hole are connected. At this time, if the slurry discharge pipe is in the waste water discharge position, the slurry discharge pipe cannot follow the rotation of the valve core due to the presence of the stop block. Therefore, the slurry discharge pipe is always in the waste water discharge position, thereby ensuring smooth waste water discharge; at this time, if the slurry discharge pipe is in the slurry discharge position, the slurry discharge pipe will follow the rotation of the valve core until the slurry discharge pipe rotates to the waste water discharge position. Similarly, because the distance between the two positions is 180° when the valve core position is detected, the difference between the stop blocks is less than the angle, which can ensure that when the connecting inlet hole and the slurry discharge hole are connected, the slurry discharge rotary valve is in a fixed position. That is to say, only when the connecting inlet hole and the slurry discharge hole are not connected, the slurry discharge pipe follows the rotation of the valve core.

[0047] Of course, in this embodiment, when the slurry discharge rotary valve is closed, the slurry discharge rotary valve continues to rotate according to its original rotation direction until it is detected that the slurry discharge rotary valve is in a closed state.

[0048] Of course, in addition to the above features, the slurry discharge rotary valve also has a sealing ring 57 between the slurry discharge pipe and the valve core to better discharge slurry or wastewater, thereby ensuring that the liquid flowing out of the valve core does not flow to other places. Similarly, when the valve core 52 is installed in the rotary valve housing 50, a corresponding sealing silicone 56 is also provided. This not only allows the valve core 52 to move better within the rotary valve housing, but also seals the connection between the inlet hole 521 and the slurry discharge hole of the cup body to prevent leakage.

[0049] In addition, in addition to using a Hall detection plate placed at the relative position of the slurry discharge hole, the Hall detection plate can detect and distinguish the two magnets, so as to know whether the slurry discharge valve is in the on state or the off state. Two Hall detection plates can also be set, such as Figure 2In the embodiment, a Hall detection plate 55 is set at the position of the slurry discharge hole to detect the slurry discharge position. At this time, two detection plates are set, and only one magnet can be set for detection. When the magnet triggers the Hall detection plates at different positions, the position of the slurry discharge rotary valve can be known. For example, the magnet is set at the position where the valve core is connected to the inlet hole. When the magnet triggers the Hall detection plate set at the position of the slurry discharge hole, it can be judged that the slurry discharge rotary valve is turned on. When the magnet triggers the Hall detection plate set at the relative position of the slurry discharge hole, it can be judged that the slurry discharge rotary valve is closed. Of course, the use of the Hall detection plate can be used to know the corresponding rotation sequence, etc., and other triggerable elements can also be used as a substitute. Under the technical concept principle of this application, they all fall within the scope of protection of this application.

[0050] In this embodiment, the slurry discharge pipe and the valve core are connected in a rotational manner using a buckle and a slot. Of course, gears that cooperate with each other can also be provided on the slurry discharge pipe and the valve core. The gears on the slurry discharge pipe or the valve core are not distributed around the entire wall, that is, at least one side is a partial gear. In this way, when the slurry discharge pipe is rotated to a position where only the gears interact, the slurry discharge pipe moves with the valve core, and when the slurry discharge pipe rotates to a position to be maintained, the corresponding gear engagement ends. At this time, in the initial state, the slurry discharge pipe is in a waste discharge position, the slurry discharge rotary valve is in a closed state, and the gears of the valve core and the slurry discharge pipe are set to a half-gear state, that is, gears are only provided along half of the slurry discharge pipe circumference, and the gear ratio number of the gears is not greater than 2:1 and not less than 4:1. That is, when the valve core rotates 180°, the slurry discharge rotary valve rotates more than 45° and not more than 90°, which can ensure that the slurry discharge pipe rotates to the slurry discharge position when the valve core rotates and maintains the slurry discharge position when the slurry discharge rotary valve is turned on. After the slurry discharge is completed, the valve core continues to rotate to the slurry discharge rotary valve closed position. Of course, in order to facilitate the setting of gear ratios and other factors, corresponding limit structures can also be set to make control more convenient.

[0051] In addition, in addition to using snap-on bumps and gear connections to connect the slurry discharge pipe and the valve core, the slurry discharge pipe and the valve core can also be connected through interference fit. These are all methods of directly connecting the slurry discharge pipe and the valve core. Of course, indirect fit can also be used.

[0052] The valve core is used to drive the discharge pipe to rotate and select the corresponding discharge position. Compared with the existing technology, this reduces the step of directly driving the discharge pipe position with the rotary valve motor, thus reducing the corresponding drive gears and reducing the corresponding costs. At the same time, the number of accessories is reduced, and the corresponding failures caused by accessory failure and problems with the coordination of accessories are eliminated, thereby improving the reliability of the product. At the same time, in terms of control, the control program design for the discharge pipe is also eliminated, simplifying the corresponding process, thus simplifying the corresponding algorithm design, effectively reducing the control error rate, and also improving the reliability of the product.

[0053] The valve core and the slurry discharge pipe are designed to be rotatably connected to each other, which makes it easier to design the position of the slurry discharge pipe and ensure that the slurry discharge rotary valve is in a closed state when the slurry discharge pipe rotates. In other words, the slurry discharge pipe rotates with the valve core only when the slurry discharge rotary valve is not connected. This avoids the slurry discharge pipe rotating when the slurry discharge rotary valve is connected, thereby preventing the slurry discharge pipe from rotating, which may cause slurry or wastewater to be discharged randomly. In other words, when the slurry discharge pipe is not rotated to the corresponding position, the slurry discharge hole will not be connected to the slurry discharge pipe. This linkage setting ensures the determination of the slurry discharge and waste discharge positions and simplifies the structure.

[0054] The limiting structure on the slurry discharge pipe is used to ensure that the slurry discharge pipe is in a specific position, especially in the two positions. On the one hand, the movement range of the slurry discharge pipe can be limited, and on the other hand, it can be ensured to be in a specific position. At the same time, it is also convenient to design the matching method between the valve core and the slurry discharge pipe, so that the structural design can be more simplified and effective. In addition, when controlling, it is only necessary to define the meaning of the rotation direction in advance. Then, during the working process, the rotation can be controlled in the established direction when needed. For example, the slurry discharge is defined as clockwise rotation and the wastewater discharge is defined as counterclockwise rotation. When slurry discharge is required, it is only necessary to control the valve core to work clockwise. The slurry discharge pipe will no longer rotate due to the limit after it follows the slurry discharge position, and vice versa. At the same time, the slurry discharge pipe and the valve core are in a normal connected state. It is only necessary to control the valve core to be connected to the slurry discharge hole of the cup body to achieve the corresponding slurry discharge or wastewater discharge. The control is simple and effective. In addition, the distance between the two stop protrusions set on the slurry discharge pipe is no more than 90°, which is equivalent to limiting the movement range of the slurry discharge pipe, ensuring that the slurry discharge pipe can move from one specific position to another specific position when the rotary valve is closed and the rotary valve is on, that is, the slurry discharge position to the wastewater discharge position, or from the wastewater discharge position to the slurry discharge position.

[0055] For the purposes of the present invention, the food processor is a food processor capable of making liquid beverages such as soy milk. Those skilled in the art will appreciate that the present invention includes, but is not limited to, the details described in the accompanying drawings and the above detailed description. Any modifications that do not deviate from the functional and structural principles of the present invention are intended to be included within the scope of the claims.

Claims

1. A control method for a food processing machine, wherein the food processing machine comprises a cup body for processing food, a pulp receiving cup for holding food, and a wastewater box for collecting wastewater, wherein the food or wastewater in the cup body is discharged into the pulp receiving cup or the wastewater box through a pulp discharge rotary valve, wherein the pulp discharge rotary valve comprises a pulp discharge pipe, a valve core, and a driving device for driving the valve core, wherein the method is characterized in that: The slurry discharge rotary valve is provided with a position detection device for detecting the position of the valve core, the cup body is provided with a slurry discharge hole, the slurry discharge pipe is driven by the valve core, the valve core is provided with a connecting inlet hole matching the slurry discharge hole, the valve core is also provided with a connecting outlet hole connected to the connecting inlet hole, and the connecting outlet hole is normally connected with the slurry discharge pipe; the position detection device detects whether the connecting inlet hole and the slurry discharge hole of the valve core are in a conducting state or a non-conducting state; when the food processing machine is discharging slurry or waste water, the valve core moves to a conducting state; when the food processing machine is in a working state, the valve core moves to a non-conducting state.

2. The food processing machine control method according to claim 1, characterized in that: The position detection device includes a detection plate and an induction magnet arranged on the valve core and cooperating with the detection plate to detect the position of the valve core.

3. The control method of a food processing machine according to claim 2, characterized in that: The induction magnet is located at the connecting inlet hole, and the detection plate includes a first detection plate arranged near the slurry discharge hole and a second detection plate arranged away from the slurry discharge hole. When the first detection plate detects the induction magnet, the slurry discharge valve is turned on, and when the second detection plate detects the induction magnet, the slurry discharge valve is closed.

4. The control method of a food processing machine according to claim 2, characterized in that: The induction magnet includes a first induction magnet arranged at the connecting inlet position and a second induction magnet arranged away from the connecting inlet position. The detection plate determines the conduction and closing of the pulp discharge valve by detecting and distinguishing the first induction magnet and the second induction magnet.

5. The control method of a food processing machine according to claim 2, characterized in that: The induction magnet includes a first induction magnet arranged at the position of the connecting inlet hole, and a second induction magnet arranged at a position away from the connecting inlet hole. The detection plate includes a first detection plate arranged near the slurry discharge hole, and a second detection plate arranged away from the slurry discharge hole. The first induction magnet cooperates with the first detection plate to detect and determine that the slurry discharge rotary valve is turned on, and the second induction magnet cooperates with the second detection plate to detect and determine that the slurry discharge rotary valve is turned on.

6. The control method of a food processing machine according to claim 1, characterized in that: The valve core and the slurry discharge pipe can move relative to each other. When the slurry discharge pipe moves to the slurry receiving or wastewater discharge position, the slurry discharge pipe no longer rotates, and the valve core continues to move to the conducting state position to connect the connecting inlet hole and the slurry discharge hole.

7. The food processing machine control method according to claim 1, characterized in that: The slurry discharge pipe includes a slurry discharge position and a wastewater discharge position. The slurry discharge pipe is driven by a valve core to switch between the slurry discharge position and the wastewater discharge position to achieve corresponding slurry discharge or wastewater discharge.

8. The food processing machine control method according to claim 1, characterized in that: After the food processor is powered on or a function program is started, detecting and driving the pulp discharge rotary valve to be in a closed position; Alternatively, after the food processor is powered on or a function program is started, the driving device drives the valve core to move, so that the valve core passes through the pulp discharge rotary valve conduction position at least once and then moves to the pulp discharge rotary valve closing position.

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