A film withdrawing structure and method for a cooking machine and a cooking machine

Abstract

The application discloses a cooking machine film withdrawing structure, a film withdrawing method and a cooking machine. The cooking machine film withdrawing structure is provided with a cover opening recognition mechanism on a full-automatic cooking machine. The cover opening recognition mechanism is used for generating a cover opening signal. After cooking of the cooking machine is completed, when the control module receives the cover opening signal of the cover opening recognition mechanism, the film tearing shaft is reversely rotated to withdraw the sealing film wound on the film tearing shaft. Therefore, the cooking machine film withdrawing structure, the film withdrawing method and the cooking machine can not only avoid misoperation, but also do not need manual pressing of a film withdrawing button, and the film withdrawing operation is simple and convenient.

Description

Technical Field

[0001] This application relates to the field of intelligent cooking machine technology, specifically to a cooking machine de-molding structure, de-molding method, and cooking machine. Background Technology

[0002] A stir-fry machine is an intelligent kitchen appliance that solves the tedious steps in daily cooking, making cooking simpler and more efficient, and is therefore popular among ordinary families. To make stir-fry machine cooking faster and more convenient, it typically uses a round food container or food box to store ingredients, and then seals the opening of the container with a sealing film. Different ingredients are placed inside the food box in the order of the recipe, along the circumference of the box. When cooking, simply invert the food box onto the stir-fry machine to start cooking.

[0003] The cooking machine of this technology includes a pot body and a lid on top of the pot body. The lid has a food inlet connected to the pot body, and the top of the lid has an annular support surface for placing a clean vegetable box or food container upside down. A film-tearing device is connected to the lid. The film-tearing device includes a film-tearing motor and a film-tearing shaft. The film-tearing shaft is conical and connected to the shaft of the film-tearing motor. The film-tearing shaft has hooks that can hook the sealing film of the food container. When cooking, the clean vegetable box or food container is placed upside down on the automatic cooking machine, and the sealing film is pressed by hand to make the pre-reserved film-tearing opening on the sealing film engage with the hooks on the film-tearing shaft. The film-tearing program is started, and the film-tearing motor drives the film-tearing shaft to roll and tear off the sealing film in sequence, so that the food in the food container falls into the pot of the automatic cooking machine in sequence. The cooking machine cooks the food according to the set cooking program. After cooking, the film-removal button is pressed to start the film-removal program. The film-tearing motor drives the film-tearing shaft to reverse and remove the film. Then, the removed sealing film is manually removed.

[0004] The aforementioned cooking machines have the following drawbacks in the actual film removal process: If the film removal button is pressed to start the film removal program after cooking is finished and the lid is not opened, the film-tearing motor will drive the film-tearing shaft to rotate in the opposite direction to remove the film. This often leads to users accidentally pressing the film removal button before opening the lid after cooking, causing the film to fall into the food in the pot. This is not only unhygienic, but also poses a risk of burns from the high-temperature steam inside the pot when removing the film. Furthermore, manually pressing the film removal button to start the film removal program is cumbersome and results in a poor user experience. Summary of the Invention

[0005] The technical problem to be solved by this application is to overcome the defects of the above-mentioned related technologies and provide a film removal structure for a cooking machine that not only avoids misoperation but also eliminates the need for manual pressing of the film removal button, making the film removal operation simple and convenient.

[0006] The technical solution of this application is to provide a film-removing structure for a cooking machine: including... A film-tearing shaft and a film-tearing motor connected to the cover of the cooking machine. The film-tearing motor is connected to the film-tearing shaft for driving the film-tearing shaft to rotate to wind and tear off the sealing film of the food container that is upside down on the cover, or for driving the film-tearing shaft to reverse to unwind the sealing film wound on the film-tearing shaft. An opening recognition mechanism is connected to the cooking machine to identify whether the lid is in an open state and to generate an opening signal indicating that the lid is open. The control module is adapted to receive the opening signal and to drive the film-tearing shaft to reverse after receiving the opening signal.

[0007] In some embodiments, the lid opening recognition mechanism includes a trigger and a sensor. One of the trigger and the sensor is connected to the lid of the cooking machine, and the other is connected to the pot of the cooking machine. When the lid is opened, the trigger moves closer to or further away from the sensor, causing the sensor to generate the lid opening signal.

[0008] In some embodiments, the lid opening recognition mechanism includes a reed switch and a magnet adapted to the reed switch. One of the reed switch and the magnet is connected to the pot body of the cooking machine, and the other is connected to the lid. When the lid is opened, the reed switch circuit switches between on and off states to generate the lid opening signal.

[0009] In some embodiments, the lid of the cooking machine is hinged to the pot body, and one of the reed switch and the magnet is connected to the side of the pot body away from the hinge, while the other is connected to the lid and corresponds to the position of the reed switch.

[0010] In some embodiments, the tearing shaft is provided with hooks protruding from the surface of the tearing shaft in the radial direction; the tearing shaft is a tapered tearing shaft, and the axis of the tearing shaft is parallel to the plane of the food box sealing film.

[0011] In summary, the film removal structure for a cooking machine proposed in this application has the following advantages compared with related technologies: The film removal structure is equipped with a lid-opening recognition mechanism connected to the cooking machine. This mechanism generates a lid-opening signal and sends it to the control module of the cooking machine. After cooking, when the control module receives the lid-opening signal, it controls the film-tearing motor to drive the film-tearing shaft in reverse to remove the sealing film wound on the shaft. Therefore, after cooking, the film removal structure automatically controls the film-tearing shaft to reverse and remove the film upon receiving the lid-opening signal, eliminating the need for manual pressing of the film removal button, thus simplifying and facilitating the film removal operation. Furthermore, the automatic reverse control of the film-tearing shaft upon receiving the lid-opening signal prevents accidental film removal due to human error when the lid is not open, effectively preventing the sealing film from falling into the cooked food.

[0012] Another technical solution of this application is to provide a method for removing the film from a cooking machine: this method for removing the film from a cooking machine is based on the film removal structure of any of the above embodiments and includes the following steps: S1: When the lid of the cooking machine is opened, the lid opening recognition mechanism is triggered and generates a lid opening signal; S2: After receiving the opening signal, the control module allows the film removal process to be started; S3: The control module starts the film removal program, causing the film tearing motor to reverse and remove the wound sealing film.

[0013] In some embodiments, there is a delay between step S2 and step S3.

[0014] In some embodiments, in step S3, if the film removal process has not ended and the control module receives an interrupted opening signal, the control module controls the film tearing motor to stop working.

[0015] Using the above-mentioned film removal method for cooking machines, when the control module receives the opening signal generated by the opening recognition mechanism after the cooking machine has finished cooking, it starts or delays starting the film removal program, causing the film tearing motor to drive the film tearing shaft to reverse and remove the wound sealing film. Therefore, it can avoid the film removal process from being started by human error without opening the lid, effectively preventing the sealing film from falling into the cooked food. In addition, after cooking is finished, there is no need to manually press the film removal button to remove the film, making the film removal operation simple and convenient.

[0016] Another technical solution of this application is to provide a cooking machine that applies the film removal structure or the film removal method described in any of the above embodiments. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a cooking machine according to this application.

[0018] Figure 2 This is a schematic diagram of a film removal structure for a cooking machine according to this application.

[0019] Figure 3 This is a structural schematic diagram of a cooking machine cover in the open state according to this application.

[0020] Figure 4 This is a schematic diagram of the internal structure of a film removal structure for a cooking machine according to this application.

[0021] Figure 5 This is a partial cross-sectional view of a film removal structure for a cooking machine according to this application.

[0022] Figure 6 This is a schematic diagram of the film-tearing shaft of a film-removing structure for a cooking machine according to this application.

[0023] Figure 7 This is a flowchart of a method for removing the film from a cooking machine according to this application.

[0024] Explanation of reference numerals in the attached figures: 1. Lid, 100. Feeding port, 101. Bearing surface, 102. Circular protrusion, 2. Pot body, 200. Lid opening button, 3. Food container, 300. Sealing film, 301. Film tearing opening, 4. Film tearing shaft, 400. Hook, 401. Hook body, 402. Hook nozzle, 5. Film tearing motor. Detailed Implementation

[0025] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0026] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0027] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0028] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0029] See Figures 1-6 As shown; this application discloses a film removal structure for a stir-fry machine, which is used in related stir-fry machines. The structure of this stir-fry machine generally includes a pot body 2 for automatically cooking ingredients. A control module is installed inside the pot body 2. This control module includes a control circuit board connected inside the pot body, and a control panel and display panel mounted on the pot body 2. This control module is the intelligent control part of the stir-fry machine and can be used to start the cooking program, display the cooking progress, and set the cooking time. The top of the pot body 2 has an opening, and a lid 1 is connected to the top of the pot body 2. The lid 1 provides support for the food container 3, and the lid 1 can rotate relative to the pot body 2 between a closed position and an open position. See [reference needed]. Figure 1 and Figure 3 As shown, the lid 1 is hinged to one side of the top of the pot body 2. The lid 1 can be rotated to the closed position, that is, the lid 1 can be closed on the pot body 2. At this time, the food box 3 can be placed upside down on the lid 1 to fix the food box 3 directly above the opening at the top of the pot body 2. The lid 1 can also be rotated to the open position so that the opening at the top of the pot body 2 is not blocked by the lid 1. At this time, operations such as serving food and removing the film can be performed.

[0030] In this embodiment, a lid opening button 200 is provided on the pot body 2. When the lid opening button 200 is pressed, the lid 1 will open under the action of elasticity.

[0031] In this embodiment, the cooking machine is suitable for a round food container. The food container 3 contains the ingredients, and the opening of the food container 3 is sealed with a sealing film 300. When cooking food manually, different ingredients need to be added in the order specified in the recipe. In order to make the cooking effect of the cooking machine closer to manual cooking and to obtain a better taste, the food container 3 of the prior art places different ingredients in the order specified in the recipe, and a tear-off opening 301 is reserved on the sealing film 300.

[0032] During the cooking process, the cooking machine sequentially adds ingredients from the food container into the pot according to the set cooking program. See details... Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the cover 1 has a feeding port 100 extending through its top and bottom, and the top of the cover 1 is provided with a supporting surface 101 for the food box 3 to be placed upside down. In this embodiment, the top of the cover 1 is provided with a downwardly recessed circular groove, the bottom plane of which forms the supporting surface 101, and the side of which can also guide the rotation of the food box 3. In other embodiments, the supporting surface 101 and the guiding structure for the rotation of the food box 3 can be set to other structures. For example, the top of the cover 1 can also be provided with a ring protrusion to limit the food box. Further in this embodiment, a film-tearing shaft 4 is provided inside the feeding port 100, and a film-tearing motor 5 electrically connected to the control module is connected to the cover 1 of the cooking machine. The film-tearing motor 5 is driven by the film-tearing shaft 4 and is used to drive the film-tearing shaft 4 to rotate to wind and tear off the sealing film 300 of the food box 3 that is upside down on the cover 1, or to drive the film-tearing shaft 4 to reverse to unwind the sealing film wound on the film-tearing shaft 4. Therefore, during cooking, the food container 3 is placed upside down on the bearing surface 101 of the lid 1, and the sealing film 300 of the food container 3 is hooked with the film-tearing shaft 4. During the cooking process, the control module controls the film-tearing motor 5 to drive the film-tearing shaft 4 to rotate, so as to roll and tear off the sealing film 300 of the food container 3 upside down on the lid 1 in sequence, so that the food in the food container 3 falls into the pot 2 through the feeding port 100 for cooking. When the cooking is finished, the lid opening button 200 is pressed to open the lid 1, and then the film-tearing motor 5 drives the film-tearing shaft 4 to reverse and remove the sealing film rolled on the film-tearing shaft 4.

[0033] In the above embodiment, when the film-tearing shaft 4 winds and tears off the sealing film 300, it will drive the food box 3 to rotate around its central axis. In order to make the food box 3 rotate smoothly and make the sealing film 300 wind more evenly, a circular protrusion 102 is provided at the center of the cover body 1. The center of the circular food box 3 is provided with an inner recess or through hole that matches the circular protrusion 102. When the food box 3 is upside down on the bearing plane 101 of the cover body 1, the inner recess or through hole at the center of the food box 3 is fitted onto the circular protrusion 102 at the center of the cover body 1. Therefore, during the process of the film-tearing shaft 4 winding and tearing the film, the food box 3 rotates around the axis of the circular protrusion 102.

[0034] To prevent accidental activation of the film removal process without opening the lid 1, and to prevent the sealing film from falling into the cooked food, this embodiment of the cooking machine's film removal structure also includes a lid opening recognition mechanism. This mechanism is connected to the cooking machine and is used to identify whether the lid 1 is open, generating an opening signal indicating that the lid 1 is open. Furthermore, the lid opening recognition mechanism is electrically connected to the cooking machine's control module, which is adapted to receive the opening signal and, upon receiving the signal, to drive the film-tearing shaft to reverse. Therefore, after the cooking process is complete, when the control module receives the opening signal from the lid opening recognition mechanism, it controls the film-tearing motor 5 to drive the film-tearing shaft 4 to reverse, thus removing the sealing film wound on the film-tearing shaft 4. After the cooking process is complete, the film-removing mechanism of this cooking machine automatically controls the film-removing shaft 4 to reverse and remove the film when the control module receives the opening signal. Therefore, there is no need to manually press the film-removing button, making the film-removing operation simple and convenient. In addition, the control module automatically controls the film-removing shaft to reverse and remove the film when it receives the opening signal, which can avoid the film removal being started by human error when the lid 1 is not opened, and effectively prevent the sealing film from falling into the cooked food.

[0035] It is understandable that in the above embodiment, after the cooking machine finishes cooking, the manual pressing of the lid opening button 200 opens the lid 1, and then flips the lid 1 to make it fully open. The entire lid opening process needs to last for a certain period of time. Therefore, in the above embodiment, when the control module receives the lid opening signal from the lid opening recognition mechanism, it can delay the control of the film tearing motor 5 to drive the film tearing shaft 4 to reverse and remove the film. This delay control of the film tearing motor 5 to reverse can be set for a predetermined time, such as 3 to 10 seconds. After the predetermined time is completed, the film tearing motor 5 is automatically controlled to reverse and remove the film to avoid the film being removed before the lid 1 is fully opened, causing the sealing film to fall into the pot body 2.

[0036] The lid-opening recognition mechanism of the aforementioned embodiment includes a trigger and a sensor. One of the trigger and the sensor is connected to the lid of the cooking machine, and the other is connected to the pot of the cooking machine. When the lid is opened, the trigger moves closer to or further away from the sensor, causing the sensor to generate an open lid signal. Specifically, in this embodiment, see [link to specific embodiment]. Figure 3As shown, the lid opening recognition mechanism includes a reed switch and a magnet adapted to the reed switch. The reed switch, also known as a reed tube, is a sensing element and is electrically connected to the control module. The magnet is a permanent magnet and is a trigger element. When the magnet approaches the reed tube, the generated magnetic field magnetizes the two reeds inside the reed tube, causing them to attract each other magnetically, thus completing the circuit. When the magnet moves away from the reed tube, the two reeds inside the reed tube lose their magnetism and reset under their own elastic force, thus breaking the circuit. In this embodiment, the reed switch is connected to the pot body 2 of the cooking machine, and the magnet is connected to the lid 1, or the reed switch is connected to the lid 1, and the magnet is connected to the pot body 2. The lid 1 and the pot body 2 are hinged together at a hinge point, and the lid opening recognition mechanism is located on the side away from the hinge point of the lid 1. Specifically, the reed switch is connected to the lid opening button 200 of the cooking machine, and the magnet is connected to the lid 1 and corresponds to the position of the reed switch. When the lid 1 is opened and moved away from the pot body 2, the reed switch circuit is disconnected to generate an open lid signal. The open lid recognition mechanism composed of the reed switch and magnet is low in cost, simple and convenient to install. In addition, the magnetic field generated by the magnet affects the magnetization of the reed inside the reed switch, so that the reed switch can be turned on without generating an open lid signal even within a certain distance range between the magnet and the reed switch. Therefore, it can avoid the defect of starting the unmolding process when the open lid button is pressed but before the lid 1 has had time to be flipped open.

[0037] In some embodiments, the cover opening recognition mechanism may also be located on the side near the hinge point of the cover 1, that is, on the side away from the cover button 200. In this arrangement, when the cover is opened, the trigger approaches the sensor to generate an open cover signal.

[0038] In some embodiments, the lid opening recognition mechanism of the above embodiments may also have the following implementation: the lid opening recognition mechanism may use a sensor to detect whether the lid is open or closed, or it may use a micro switch to detect whether the lid is open or closed by using the circuit opening and closing of the micro switch. For example, the micro switch is connected to the pot body. When the lid is in the closed state, the micro switch is triggered to make the circuit conduct. When the lid is opened, the micro switch is closed to make the circuit open, thereby generating a lid opening signal.

[0039] In this embodiment, see Figure 2 , Figure 3 , Figure 4 and Figure 6As shown, the tearing shaft 4 has a hook 400 protruding from its surface along the radial direction. This hook 400 can extend into the tearing opening 301 on the sealing film 300 of the food container 3, thereby hooking with the sealing film 300. This not only makes it easy to tear off the sealing film on the food container, but also prevents the removed sealing film from automatically falling into the food in the pot 2 after the drive motor 5 drives the tearing shaft 4 to flip and remove the film. In addition, the hook 400 is designed to protrude from the surface of the tearing shaft 4, so that the space between the hook 400 and the tearing shaft 4 is larger. This not only facilitates cleaning, but also allows the rolled sealing film 300 to adhere more loosely to the tearing shaft 4 when the sealing film 300 is rolled up and torn off, thereby preventing the sealing film 300 from sticking to the tearing shaft 4 during the film removal process, making the film removal operation convenient.

[0040] Further in this embodiment, see Figure 3 , Figure 4 and Figure 6 As shown, the hook 400 on the film-tearing shaft 4 includes a hook body 401 and a hook tip 402. The hook body 401 is connected to the film-tearing shaft 4 and protrudes or extends outward along the radial direction of the film-tearing shaft 4. The hook tip 402 is located at the free end of the hook body 401 and is integrated with the hook body 401. The hook tip 402 extends along the rotation direction of the film-tearing shaft 4, that is, the hook tip 402 extends in a single direction of rotation of the film-tearing shaft 4. When the film removal is finished, the sealing film can be easily removed from the hook 400.

[0041] In the aforementioned embodiment, the angle between the hook body 401 and the hook tip 402 is set to less than or equal to 90 degrees. This is because when the food container 3 is placed upside down on the supporting surface 101, the heat inside the pot 2 will cause the sealing film of the food container 3 to deform or expand due to heat. Setting the angle between the hook tip 402 and the hook body 401 to less than or equal to 90 degrees prevents the hook 400 from detaching from the sealing film 300 when the film-tearing shaft 4 winds the sealing film, thus making the film-tearing operation faster. Additionally, at the end of the film removal process, it also prevents the removed sealing film from automatically falling into the food inside the pot 2.

[0042] In this embodiment, see Figure 5 and Figure 6As shown, the tear-off shaft 4 is a tapered tear-off shaft with a smaller outer end and a larger inner end, and the axis of the tear-off shaft 4 is parallel to the plane where the sealing film of the food container 3 is located. This allows the tear-off shaft 4 to be installed horizontally, which not only facilitates the installation of the tear-off shaft 4, but also makes the installation and assembly of the tear-off motor 5 and its components easier. Moreover, because the tear-off shaft 4 is tapered, there is an angle between the surface of the tear-off shaft 4 and the plane where the bearing plane 101 is located. This angle allows a certain angle or gap to be reserved between the surface of the tear-off shaft 4 and the sealing film 300 of the food container 3 on the bearing plane 101, so that part of the surface of the tear-off shaft 4 is not tightly attached to the sealing film 300. It is understood that the sealing film 300 of the food container 3 may stick to the surface of the tear-off shaft 4 under the high temperature and pressure inside the pot body 2. This application can improve the adhesion situation by setting the angle. More specifically, by horizontally installing the film-tearing shaft 4 and setting its tapered surface, a certain angle or gap can be reserved between the surface of the film-tearing shaft 4 and the sealing film 300 of the food container 3, thereby effectively preventing the sealing film 300 from sticking to the surface of the film-tearing shaft 4 and facilitating the film removal operation.

[0043] See Figure 7 As shown, another embodiment of this application discloses a method for removing the film from a cooking machine, which is based on the film removal structure of the cooking machine in the above embodiment. The film removal method includes the following steps: S1: When the lid of the cooking machine is opened, the lid opening recognition mechanism is triggered and generates an opening signal; S2: After receiving the lid opening signal, the control module allows the film removal process to be started; S3: The control module starts the film removal program, causing the film tearing motor to reverse and remove the wound sealing film.

[0044] The film removal program of the cooking machine in this embodiment is started after the cooking program or the film removal program is completed. Therefore, in step S1 above, after the cooking program is completed, the lid opening button is pressed to open the lid of the cooking machine, thereby triggering the lid opening recognition mechanism. The lid opening recognition mechanism generates an opening signal when it recognizes that the lid is in the open state.

[0045] In this embodiment, the film removal method for the cooking machine starts or delays the film removal process when the control module receives an opening signal from the opening recognition mechanism after the cooking machine has finished cooking. This causes the film-tearing motor to drive the film-tearing shaft to reverse and remove the wound sealing film. Therefore, it can avoid accidental film removal due to human error when the lid is not opened, effectively preventing the sealing film from falling into the cooked food. In addition, after cooking, there is no need to manually press the film removal button to remove the film, making the film removal operation simple and convenient.

[0046] It is understandable that the process of the lid automatically opening after pressing the lid opening button until it is fully opened manually will take a certain amount of time. To prevent the film removal process from ending before the lid 1 is fully opened, thus preventing the sealing film from falling into the pot body 2, in this embodiment, there is a delay between steps S2 and S3. This delay can be manually set in the film removal program, generally 3 to 10 seconds is appropriate, to ensure that the lid is fully open before film removal. That is, in step S2, after the control module receives the lid opening signal, it delays the start of the film removal program to ensure that the lid 1 is fully open before starting the film removal program, thus preventing the removed sealing film from falling into the pot body 2.

[0047] In this embodiment, the lid 1 is in a fully open state, generally meaning the lid 1 is opened to its maximum opening angle. In a specific embodiment, the lid 1 and the pot 2 of the cooking machine are respectively provided with limiting structures suitable for mutual contact when the lid 1 is fully open. More specifically, when the lid 1 is fully open, its angle relative to the pot 2 is greater than or equal to 80 degrees, for example, it can be 80 degrees, 90 degrees, or greater than 90 degrees. When the lid 1 is fully open, the projection of the film-tearing shaft 4 along the height direction of the cooking machine falls outside the feeding port 100, thereby reducing the probability of the sealing film and residues on the sealing film falling into the feeding port 100, and making it easier to avoid the rising hot steam inside the pot when removing the film.

[0048] Understandably, during the cooking process of the stir-fry machine, the lid is placed on the pot, and the lid opening recognition mechanism does not generate an opening signal. After the stir-fry machine finishes cooking, the lid is opened, and the lid opening recognition mechanism detects the lid is open and generates an opening signal. When the control module receives the opening signal generated by the lid opening recognition mechanism, it starts or delays starting the film removal process. However, if the lid is accidentally closed due to human error before the film removal process is completed, the film removal process will continue, causing the removed sealing film to fall into the pot. Therefore, in this embodiment, in step S3 of the above-mentioned film removal method, if the film removal process is not completed and the control module's reception of the opening signal is interrupted, the control module controls the film tearing motor to stop working. That is, if the lid is accidentally closed due to human error while the film removal process is still in progress, the lid opening recognition mechanism detects the lid is closed but does not generate an opening signal, meaning the control module's reception of the opening signal is interrupted. At this time, the control module controls the film tearing motor to stop working to stop the film removal process. Therefore, this film removal method further ensures the safety of film removal.

[0049] In some embodiments, to further prevent the sealing film from falling into the pot before the lid is fully opened, the lid opening recognition mechanism can be set to generate an opening signal after the lid is opened to a certain angle. For example, after the cooking program of the cooking machine is completed, if the lid opening button is pressed, the lid will automatically open to a certain angle under the action of the elastic force. If the angle between the lid and the pot is 20 degrees at this time, the lid opening recognition mechanism will not be triggered at this angle and no opening signal will be generated. During the process of manually opening the lid, if the angle between the lid and the pot is greater than 20 degrees or greater than 30 degrees, the lid opening recognition mechanism will be triggered and an opening signal will be generated.

[0050] Another embodiment of this application discloses a cooking machine that uses the film-removing structure or the film-removing method described in any of the above embodiments. This cooking machine not only avoids accidental operation during film removal but also eliminates the need for manual pressing of the film removal button, making the film removal operation simple and convenient.

[0051] In the description of the embodiments of this application, it should be noted that the terms "inner" and "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0052] In the description of this application, the references to terms such as "an embodiment," "some embodiments," "in this embodiment," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0053] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A demolding structure for a cooking machine, characterized in that: include A film-tearing shaft and a film-tearing motor connected to the cover of the cooking machine. The film-tearing motor is connected to the film-tearing shaft for driving the film-tearing shaft to rotate to wind and tear off the sealing film of the food container that is upside down on the cover, or for driving the film-tearing shaft to reverse to unwind the sealing film wound on the film-tearing shaft. An opening recognition mechanism is connected to the cooking machine to identify whether the lid is in an open state and to generate an opening signal indicating that the lid is open. The control module is adapted to receive the opening signal and to drive the film-tearing shaft to reverse after receiving the opening signal.

2. The stir-fry machine unpacking structure according to claim 1, characterized in that: The lid opening recognition mechanism includes a trigger and a sensor. One of the trigger and the sensor is connected to the lid of the cooking machine, and the other is connected to the pot of the cooking machine. When the lid is opened, the trigger moves closer to or further away from the sensor, causing the sensor to generate the lid opening signal.

3. The stir-fry machine unpacking structure according to claim 1, characterized in that: The lid opening recognition mechanism includes a reed switch and a magnet adapted to the reed switch. One of the reed switch and the magnet is connected to the pot body of the cooking machine, and the other is connected to the lid. When the lid is opened, the reed switch circuit switches between on and off states to generate the lid opening signal.

4. The stir-fry machine unpacking structure according to claim 3, characterized in that: The lid of the cooking machine is hinged to the pot body. One of the reed switch and the magnet is connected to the side of the pot body away from the hinge, and the other is connected to the lid and corresponds to the position of the reed switch.

5. The stir-fry machine unpacking structure according to claim 1, characterized in that: The tearing shaft is provided with hooks protruding from the surface of the tearing shaft in the radial direction; the tearing shaft is a tapered tearing shaft, and the axis of the tearing shaft is parallel to the plane of the food box sealing film.

6. A method for removing the film from a cooking machine, based on the film removal structure of the cooking machine according to any one of claims 1 to 5, characterized in that: The film removal method includes the following steps: S1: When the lid of the cooking machine is opened, the lid opening recognition mechanism is triggered and generates an opening signal; S2: After receiving the opening signal, the control module allows the film removal process to be started; S3: The control module starts the film removal program, causing the film tearing motor to reverse and remove the wound sealing film.

7. The method for removing the film from a cooking machine according to claim 6, characterized in that: There is a time delay between steps S2 and S3.

8. The method for removing the film from a cooking machine according to claim 6, characterized in that: In step S3, if the film removal process is not completed and the control module receives an interrupted opening signal, the control module controls the film tearing motor to stop working.

9. A cooking machine, characterized in that: The film removal structure as described in any one of claims 1 to 5 is applied, or the film removal method as described in any one of claims 6 to 8 is applied.

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