Film tearing device of cooking machine and cooking machine

Abstract

The film tearing device comprises a cover body and a film tearing shaft, the cover body is provided with a feeding port penetrating through the top and the bottom, and the cover body is provided with a bearing plane allowing a food box to be placed in an inverted mode; the film tearing shaft is arranged in the feeding port and comprises a shaft body and a hook, the hook is arranged on the shaft body and comprises a hook body protruding in the radial direction relative to the shaft body and a hook mouth located at the free end of the hook body, the hook mouth protrudes in the rotating direction of the film tearing shaft relative to the hook body, and when the hook faces the top of the cover body, the hook mouth is closed. And the hook mouth upwards extends out of the bearing plane so as to extend into a film tearing opening reserved in the food box sealing film. The cooking machine adopts the film tearing device. According to the film tearing device of the cooking machine, the sealing film can be connected with the hook in a hanging mode without pressing the sealing film with hands, operation is easy and convenient, adhesion of the sealing film and the film tearing shaft can be effectively avoided, film stripping is convenient, and safety is high.

Description

Technical Field

[0001] This application relates to the field of intelligent cooking machine technology, specifically to a film-tearing device for a cooking machine and the cooking machine itself. Background Technology

[0002] An automatic stir-fry machine is a smart kitchen appliance that simplifies and streamlines the cooking process, making cooking more efficient and popular in ordinary households. The structure of such a machine includes a pot and a lid on top of the pot. The lid has a food inlet connected to the pot. The machine typically uses a food container or clean food box to store the food, and then seals the opening of the container with a sealing film. Therefore, the top of the lid has an annular support surface for placing the food container or clean food box upside down, and a film-tearing device is connected to the lid. When cooking, the food container or clean food box is placed upside down on the automatic stir-fry machine, and the film-tearing program is started. The film-tearing device tears open the sealing film at the opening of the food container or clean food box, allowing the food to automatically fall into the pot. The machine then cooks the food according to the set cooking program.

[0003] The structure of the film-tearing device for a cooking machine in related technologies includes a film-tearing motor connected to the upper cover. A tapered film-tearing shaft is connected to the rotating shaft of the film-tearing motor. The film-tearing shaft is located inside the feeding port and below the annular bearing plane. The film-tearing shaft has hooks for engaging the sealing film. The film-tearing motor drives the film-tearing shaft to rotate, causing the hooks on the film-tearing shaft to catch the sealing film and wrap it around the film-tearing shaft to complete the film-tearing operation. For example, in Chinese patent application CN217723225U, entitled "A Film-Tearing Structure for a Cooking Machine," the side of the film-tearing shaft has a radially recessed groove, and the hook is located at the edge of the groove. During the film-tearing operation, the food container is inverted and pressed firmly onto the bearing plane of the upper cover, causing the hooks to tear the sealing film of the food container. Then, the film-tearing shaft motor is started to rotate and tear the film. For example, Chinese patent application CN110507158A, entitled "A Dispensing Device for Classified Food," describes a radially recessed groove on a film-tearing conical shaft, with a hook inside the groove that does not protrude from it. During the film-tearing operation, the opening of the food container sealing film or the hanging ring is first engaged with the hook on the film-tearing conical shaft, and then the film-tearing motor is started to drive the film-tearing conical shaft to rotate and tear the film.

[0004] The aforementioned cooking machine film-tearing device has the following defects in actual film-tearing process: The hook is set at the edge of the film-tearing shaft groove or inside the groove, and the hook does not protrude from the outer circumference of the film-tearing shaft. When the food container with the sealing film is inverted on the annular bearing plane of the top cover or placed in the slot, the free end of the hook abuts against the bottom of the sealing film or is located below the sealing film. This requires the user to press the sealing film with their hand and hook the opening on the sealing film onto the hook, or to puncture and hook the sealing film before starting the film-tearing motor. Therefore, the operation is relatively troublesome and laborious. Furthermore, because the winding space between the hook and the bottom of the hook is small, the wound sealing film is prone to sticking to the film-tearing shaft, making it difficult to remove the film and also causing inconvenience in cleaning. In addition, the film-tearing shaft will generate heat during continuous operation, which may cause burns when the sealing film is hooked onto the hook by hand, resulting in poor safety. Utility Model Content

[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-removing device for a cooking machine that allows the sealing film to be hooked onto the hook without pressing it by hand, which is simple and convenient to operate, effectively prevents the sealing film from sticking to the film-removing shaft, facilitates film removal, and has high safety.

[0006] The technical solution of this application is to provide a film-tearing device for a cooking machine having the following structure: including...

[0007] The lid has a feeding port that extends through the top and bottom, and the lid is provided with a support surface for the food box to be placed upside down;

[0008] A film-tearing shaft is disposed within the feeding port and includes a shaft body and a hook. The hook is disposed on the shaft body and includes a hook body that protrudes radially relative to the shaft body and a hook nozzle located at the free end of the hook body. The hook nozzle protrudes relative to the hook body in the rotation direction of the film-tearing shaft, and when the hook is facing the top of the cover, the hook nozzle extends upward beyond the bearing plane to enter the pre-reserved film-tearing opening on the food box sealing film.

[0009] In some embodiments, the angle between the hook body and the hook tip is less than or equal to 90 degrees.

[0010] In some embodiments, the top of the hook tip is configured as a smoothly transitioned arc surface.

[0011] In some embodiments, the shaft body is conical in shape, and the axis of the film-tearing shaft is parallel to the bearing plane.

[0012] In some embodiments, the shaft body has a stepped surface that is recessed radially along the shaft body, and the hook is connected to the stepped surface.

[0013] In some embodiments, the film-tearing shaft is an integrally formed structure.

[0014] In some embodiments, the hook is connected to the shaft body and slides radially along the shaft body, and an elastic element is connected between the hook and the shaft body to give the hook a tendency to always move away from the shaft body.

[0015] In some embodiments, the film-tearing device further includes a film-tearing motor connected to the cover and driven by the film-tearing shaft to drive the film-tearing shaft to rotate to wind and tear off the sealing film on the food container.

[0016] In summary, the film-tearing device for a cooking machine disclosed in this application has the following advantages compared to related technologies: The film-tearing shaft of this device includes a hook body protruding radially relative to the shaft body and a hook nozzle located at the free end of the hook body. The hook nozzle protrudes relative to the hook body along the rotation direction of the film-tearing shaft. When the hook faces the top of the lid, the hook nozzle extends upwards from the bearing plane to insert into the pre-reserved film-tearing opening on the food container's sealing film. Therefore, during the film-tearing operation, simply place the food container with the sealing film upside down on the bearing plane of the lid, and then rotate the food container to allow the hook to... The hook tip automatically extends into the pre-drilled opening on the food container's sealing film, eliminating the need to manually press the film to engage with the hook. This makes operation simple and convenient, and also prevents burns caused by contact with the film-tearing shaft, ensuring high safety. Furthermore, the hook body protrudes from the shaft body, providing a larger space between the hook tip and the shaft body. This not only facilitates cleaning but also allows for a looser fit between the rolled-up film and the shaft body when winding and tearing off the sealing film, preventing adhesion during film removal.

[0017] Another technical solution of this application is to provide a cooking machine with the following structure, which includes the film-tearing device described in any of the above embodiments. Therefore, the cooking machine is simple and convenient to operate when tearing the film, and can avoid burns caused by the user contacting the film-tearing shaft, thus ensuring high safety; furthermore, the film-tearing shaft of the cooking machine is not only easy to clean, but also prevents the sealing film from sticking to the shaft body when removing the film. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of a cooking machine according to some embodiments of this application.

[0019] Figure 2 This is a schematic diagram of the structure of a film-tearing device for a cooking machine according to some embodiments of this application.

[0020] Figure 3This is a schematic diagram of the cover of a film-tearing device for a cooking machine according to some embodiments of this application.

[0021] Figure 4 This is a schematic diagram of the film-tearing shaft structure of a film-tearing device for a cooking machine according to some embodiments of this application.

[0022] Figure 5 This is a cross-sectional structural schematic diagram of a film-tearing device for a cooking machine according to some embodiments of this application.

[0023] Figure 6 This is a side view of the film-tearing shaft of a film-tearing device for a cooking machine according to some embodiments of this application.

[0024] Figure 7 This is a schematic diagram of the structure of a film-tearing shaft according to other embodiments of this application. Figure 1 .

[0025] Figure 8 This is a schematic diagram of the structure of a film-tearing shaft according to other embodiments of this application. Figure 2 .

[0026] Figure 9 This is a schematic diagram of the internal structure of the cover of a film-tearing device for a cooking machine according to some embodiments of this application.

[0027] Figure 10 This is a schematic diagram of an angle detection device for a film-tearing device of a cooking machine according to some embodiments of this application.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Lid; 100. Feeding port; 101. Bearing plane; 102. Circular protrusion; 2. Pot body; 3. Food container; 300. Sealing film; 301. Film tearing opening; 4. Film tearing shaft; 400. Hook; 401. Hook body; 402. Hook nozzle; 403. Hook edge; 404. Stepped surface; 405. Shaft body; 5. Film tearing motor; 6. Radial magnet; 7. Sensor assembly; 700. Magnetic induction chip. Detailed Implementation

[0030] 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.

[0031] 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.

[0032] 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.

[0033] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0034] See Figures 1-6 As shown; This application discloses a film-removing device for a cooking machine, which is used in cooking machines of the related technology. The structure of the cooking machine generally includes a pot body 2 that can automatically cook food. The top of the pot body 2 is provided with an opening. The film-removing device is installed at the opening at the top of the pot body 2 to remove the sealing film 300 of the food container 3 and allow the food in the food container 3 to automatically fall into the pot body 2.

[0035] It is understandable that existing food containers 3 used for holding ingredients are mostly round or square. The food container 3 contains ingredients, and its opening is sealed with a sealing film 300. When cooking, the food container 3 needs to be inverted onto the film-tearing device. After removing the sealing film 300, the ingredients automatically fall into the pot body 2. To make the cooking process closer to human cooking and achieve better taste, different ingredients are added sequentially according to the baking order of the recipe. Therefore, existing food containers 3 place different ingredients in order according to the baking order of the recipe, and a film-tearing opening 301 is provided on the sealing film 300. In this embodiment, the film-tearing device of the cooking machine is suitable for round food containers.

[0036] In this embodiment, the film-tearing device of the cooking machine includes a cover 1, a film-tearing shaft 4, and a film-tearing motor 5. The cover 1 is mounted on the pot body 2 to provide support for the food container 3, and the film-tearing shaft 4 is mounted on the cover 1 to tear open the sealing film 300 on the food container 3. See specifically... Figure 1As 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.

[0037] In this embodiment, the lid 1 has a feeding port 100 extending through its top and bottom, and the top of the lid 1 is provided with a supporting surface 101 for the food container 3 to be placed upside down. In this embodiment, the top of the lid 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 container 3. In other embodiments, the supporting surface 101 and the guiding structure for the rotation of the food container 3 can be set to other structures. For example, the top of the lid 1 can also be provided with a ring-shaped protrusion to limit the position of the food container.

[0038] Further in this embodiment, see Figure 1 and Figure 3 As shown, the film-tearing shaft 4 is installed inside the feeding port 100. The film-tearing shaft 4 is equipped with a hook 400. The film-tearing motor 5 is connected to the cover body 1 and is drively connected to the film-tearing shaft 4 to drive the film-tearing shaft 4 to rotate to wind and tear off the sealing film 300 on the food box 3. Since the film-tearing device of this embodiment is suitable for round food boxes 3, when the film-tearing shaft 4 winds and tears off the sealing film 300, it drives the food box 3 to rotate around its central axis. In order to make the rotation of the food box 3 smooth and to wind the sealing film 300 more evenly, a convex circular protrusion 102 is provided at the center of the cover body 1. The center of the round food box 3 is provided with an inner concave 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 concave center of the food box 3 is fitted onto the circular protrusion 102 at the center of the cover body 1. 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.

[0039] Further in this embodiment, see Figure 3 and Figure 5 As shown, to ensure smoother rotation of the food container 3 during the film-tearing process, the film-tearing shaft 4 is designed as a tapered shaft with a smaller outer end and a larger inner end. Since the cooking machine of this application is designed for round food containers, and considering the difference in diameter between the inner and outer rings of the food container, the film-tearing shaft 4 is designed as a tapered structure to avoid uneven force during film tearing. Furthermore, the axis of the film-tearing shaft 4 intersects the central axis of the food container 3. That is, the projection of the axis of the film-tearing shaft 4 onto the sealing film 300 of the round food container 3 falls in the radial direction of the sealing film 300.

[0040] In this embodiment, see Figure 3 and Figure 4As shown, the film-tearing shaft 4 includes a shaft body 405 and a hook 400, with the hook 400 disposed on the shaft body 405. To facilitate film tearing and make the film tearing operation simpler, more convenient, and safer, the hook 400 on the shaft body of the film-tearing shaft 4 protrudes radially from the surface of the shaft body 405. When the hook 400 faces the top of the lid 1, the food container 3 is placed upside down on the bearing plane 101, and the hook 400 can extend into the pre-reserved film-tearing opening 301 on the sealing film 300 of the food container 3; that is, the hook 400 protrudes radially outward from the surface of the shaft body 405, and the hook 400 is protruding relative to the outer circumferential surface of the shaft body 405. When the film-tearing shaft 4 rotates to the initial position, the hook 400 on the film-tearing shaft 4 faces the sealing film 300 of the food container 3. The initial position of the film-tearing shaft 4 is the angle at which the film-tearing shaft 4 is located when the cooking machine is turned on, or the angle at which the film-tearing shaft 4 is located after the cooking machine has completed one cooking cycle and at the start of the next cooking cycle, or the angle at which the film-tearing shaft 4 is located after the cooking machine has finished rotating in the opposite direction to remove the film.

[0041] When performing the film-tearing operation, simply place the food container 3 with the sealing film 300 upside down on the bearing surface 101 of the lid 1, and then rotate the food container 3. The hook 400 will automatically extend into the pre-reserved tearing opening 301 on the sealing film 300 of the food container 3. There is no need to press the sealing film 300 by hand to hook the pre-reserved tearing opening 301 onto the hook 400. Therefore, the operation is simple and convenient, and it can avoid burns caused by the user touching the tearing shaft 4, which is safe. Furthermore, the hook 400 is designed to protrude from the surface of the shaft body 405 of the tearing shaft 4, so that the space between the hook 400 and the shaft body 405 is larger. This not only facilitates cleaning, but also allows the rolled sealing film 300 to adhere more loosely to the shaft body 405 when the sealing film 300 is rolled up and torn off, thereby preventing the sealing film 300 from sticking to the shaft body 405 when removing the film.

[0042] Further in this embodiment, see Figure 3 , Figure 4 and Figure 6As shown, the hook 400 of the film-tearing shaft 4 includes a hook body 401 and a hook nozzle 402. The hook body 401 protrudes radially relative to the shaft body 405, and the hook nozzle 402 is located at the free end of the hook body 401 and protrudes relative to the hook body 401 in the rotation direction of the film-tearing shaft 4. That is, 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. In this embodiment, the free end of the hook tip 402 extends upward out of the bearing plane 101. It can be understood that the bearing plane 101 on the cover 1 is also the plane that is horizontally attached to the side of the food box 3 with the sealing film 300 when the food box 3 is placed upside down. The free end of the hook tip 402 extending upward out of the bearing plane 101 helps to extend into the pre-reserved film-tearing opening 301 on the sealing film 300 when the food box 3 is placed upside down. In this embodiment, it is preferable that the free end of the hook tip 402 extends upward beyond the bearing plane 101 by more than 1 mm. Specifically, the free end of the hook tip 402 forms a hook edge 403, which protrudes upward from the bearing plane 101. The distance between the hook edge 403 and the bearing plane 101 is preferably greater than 1 mm. That is, when the food box 3 is placed upside down on the bearing plane 101, the hook tip 402 of the hook 400 extends into the tear film opening 301. When the food box 3 is rotated, one side of the tear film opening 301 can be engaged into the hook tip 402 of the hook 400. In this way, there is no need to manually press the sealing film 300. It is only necessary to rotate the food box 3 placed upside down on the bearing plane 101 by a certain angle so that the tear film opening 301 reserved on the sealing film 300 can be engaged into the hook tip 402 of the hook 400. The sealing film 300 can be wound and torn off under the rotation of the tear film shaft 4.

[0043] It is easy to understand that, in this application, the free end of the hook body 401 refers to the end of the hook body 401 that is relatively far away from the shaft body 405, and the free end of the hook nozzle 402 refers to the end that is relatively far away from the hook body 401.

[0044] Furthermore, in this embodiment, the included angle between the hook body 401 and the hook tip 402 is set to less than or equal to 90 degrees. It is understood that when the food container 3 is placed upside down on the bearing plane 101, the heat inside the pot body 2 will cause the sealing film 300 of the food container 3 to deform or expand due to heat. By setting the included angle between the hook tip 402 and the hook body 401 to less than or equal to 90 degrees, the film-tearing shaft 4 can avoid the hook 400 from detaching from the sealing film 300 when winding the sealing film 300, or avoid the hook tip 402 of the hook 400 from failing to firmly hook the sealing film 300, thereby making the film-tearing operation faster.

[0045] In this embodiment, see Figure 4 and Figure 6As shown, the top of the hook tip 402 is designed as a smoothly transitioned arc surface, which makes the top of the hook tip 402 of the hook 400 more rounded, which not only avoids scratching the user's fingers and is highly safe, but also prevents the sealing film 300 of the food box 3 from being scratched during the process of the food box 3 rotating on the bearing plane 101 and hooking with the hook 400.

[0046] Further in this embodiment, see Figure 5 and Figure 6 As shown, the axis of the film-tearing shaft 4 is set to be parallel to the bearing plane 101, so that the film-tearing shaft 4 is horizontally assembled during installation. This not only facilitates the installation of the film-tearing shaft 4, but also makes the installation and assembly of the film-tearing motor 5 and its parts more convenient.

[0047] In some embodiments, the hook 400 protrudes outward, and there is an angle between the outer wall of the shaft body 405 and the plane containing the bearing plane 101. This angle allows for a certain angle or gap between the surface of the shaft body 405 and the sealing film 300 of the food container 3 on the bearing plane 101, thus preventing a portion of the surface of the shaft body 405 from tightly adhering to the sealing film 300. It is understood that the sealing film 300 of the food container 3 may adhere to the surface of the tear-off shaft 4 under the high temperature and pressure inside the pot body 2. This application improves the adhesion situation by setting an angle. More specifically, by using the horizontal installation of the tear-off shaft 4 in conjunction with the tapered arrangement of the shaft body 405, a certain angle or gap can be reserved between the surface of the shaft body 405 and the sealing film 300 of the food container 3, thereby effectively preventing the sealing film 300 from adhering to the surface of the tear-off shaft 4.

[0048] In the above embodiment, the hook 400 and the film-tearing shaft 4 are an integral structure, and the hook 400 and the surface of the film-tearing shaft 4 are fixedly connected. The hook 400 is fixedly connected to the surface of the film-tearing shaft 4 by welding or integral molding. This facilitates cleaning of the part between the hook 400 and the surface of the film-tearing shaft 4.

[0049] In some embodiments, the hook 400 on the film-tearing shaft 4 may also have the following implementation: See below Figure 7 As shown, the film-tearing shaft 4 is provided with a stepped surface 404 that is recessed radially along the film-tearing shaft 4. The hook 400 is fixedly connected to the stepped surface 404. The stepped surface 404 is parallel to the axis of the film-tearing shaft 4. The hook 400 is fixedly connected to the stepped surface 404, which makes it easier to connect the hook 400 to the film-tearing shaft 4. For example, when welding the hook 400 to the film-tearing shaft 4, it is convenient to position and weld the hook 400.

[0050] In other embodiments, the hook 400 can be configured as an elastic hook 400, that is, the hook 400 can float elastically in the radial direction of the tearing shaft 4. Specifically, the hook 400 is connected to the tearing shaft 4 and slides in the radial direction of the tearing shaft 4. An elastic element is connected between the hook 400 and the tearing shaft 4 to make the hook 400 always have a tendency to move away from the tearing shaft 4.

[0051] For example, see Figure 8 As shown, a stepped surface 404 is provided on the surface of the film-tearing shaft 4, which is radially recessed along the film-tearing shaft 4. The stepped surface 404 is parallel to the axis of the film-tearing shaft 4, and a radial groove is recessed downward on the stepped surface 404. The hook body 401 of the hook 400 is radially slidably connected in the radial groove, and the hook body 401 does not detach from the radial groove. An elastic element, such as a compression spring or a sheet, is provided between the radial groove and the hook body 401 of the hook 400. Under the action of the elastic force, the hook tip 402 of the hook 400 always tends to move away from the film-tearing shaft 4, that is, the hook 400 is always in the extended state. It is easy to understand that, since the hook tip 402 of the hook 400 protrudes upward from the bearing plane 101, when tearing the film, the elastic hook 400, during the process of the hook tip 402 hooking the sealing film 300 and winding, due to the tension of the film, the hook 400 contracts and lowers, making the food box 3 more stable during rotation. Furthermore, the step surface 404 also provides space for the hook 400 to shrink in the radial groove direction.

[0052] It is easy to understand that the hook 400 is set on the circumferential surface of the film-tearing shaft 4. When the film-tearing motor 5 stops driving, the position of the hook 400 is inevitably uncertain. If, when preparing to start the film-tearing program, the rotation angle of the film-tearing shaft 4 causes the hook 400 to not face the sealing film 300, then manual adjustment is required to rotate the film-tearing shaft 4 and make the hook 400 face the sealing film 300, so that it can easily extend into the reserved opening of the sealing film 300 and hook the sealing film 300. Therefore, in this embodiment, see... Figure 9 As shown, the film-tearing device also includes an angle detection device for monitoring the rotation angle of the film-tearing shaft 4, ensuring that the hook 400 faces the sealing film 300 of the food container 3 when the film-tearing shaft 4 is in its initial position. The angle detection device detects the rotation angle of the film-tearing shaft 4 and determines its initial position, i.e., the rotation angle of the film-tearing shaft 4 when the hook 400 faces the sealing film 300 of the food container 3. Therefore, at the end of one film-tearing cycle or when the machine is started to tear the film, the angle detection device ensures that the film-tearing shaft 4 remains in its initial position and the hook 400 faces the sealing film 300 of the food container 3, facilitating the hook 400 to extend into and hook onto the sealing film 300 of the food container 3.

[0053] For example, see Figure 9 and Figure 10As shown, the angle detection device includes a radial magnet 6 connected to the shaft of the film-tearing motor 5 and a sensor assembly 7 connected to the cover 1. The sensor assembly 7 has a magnetic induction chip 700, which detects the position of the hook 400 of the film-tearing shaft 4 by sensing changes in the magnetic field of the radial magnet 6. The radial magnet 6 includes a pair of magnets arranged sequentially along the circumference, with opposite magnetic poles. It can be understood that the radial magnet 6, composed of the pair of magnets with opposite magnetic poles, has a clockwise or counterclockwise annular magnetic field, and the magnetic field strength along the circumference is distributed from strong to weak and from weak to strong from the N pole to the S pole. The magnetic induction chip 700 can sense the strength of the magnetic field on the radial magnet 6 and generate an electrical signal that is fed back to the control circuit of the sensor assembly 7, thereby detecting the initial position of the film-tearing shaft 4 and improving the accuracy of the rotation angle control of the film-tearing shaft 4. In this embodiment, the magnetic induction chip 700 is a Hall effect sensor integrated on the circuit board of the magnetic sensor 7 for detecting magnetic field strength. In other embodiments, the magnetic induction chip 700 can also be a magnetoresistive sensor, etc.

[0054] In some embodiments, the radial magnet 6 can be a magnetic component of other structures, such as including two pairs of magnets distributed sequentially along the circumference, with the two magnets of each pair having opposite magnetic poles; the magnetic component can also be directly mounted on the tearing shaft 4, and the sensor assembly 7 detects changes in the strength of the magnetic field to calculate the orientation of the hook 400.

[0055] In this embodiment, see Figure 9 and Figure 10 As shown, the angle detection device is located on the side of the film-tearing motor 5 away from the feeding port 100.

[0056] In other embodiments, the angle detection device may also be located on the side of the film-tearing motor 5 facing the feeding port 100. Specifically, a first gear is coaxially mounted on the film-tearing shaft 4, and the first gear rotates as the film-tearing shaft 4 rotates. A second gear meshing with the first gear is mounted on the cover 1, and a radial magnet 6 is mounted on the second gear. A sensor assembly 7 opposite to the radial magnet 6 is mounted on the cover 1. When the film-tearing shaft 4 rotates, the second gear is driven to rotate by the first gear, and the radial magnet 6 rotates synchronously with the second gear. The sensor assembly 7 detects the change in magnetic field information and determines the position of the film-tearing shaft 4.

[0057] 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.

[0058] 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.

[0059] 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 film-tearing device for a cooking machine, characterized in that: include The lid has a feeding port that extends through the top and bottom, and the lid is provided with a support surface for the food box to be placed upside down; A film-tearing shaft is disposed within the feeding port and includes a shaft body and a hook. The hook is disposed on the shaft body and includes a hook body that protrudes radially relative to the shaft body and a hook nozzle located at the free end of the hook body. The hook nozzle protrudes relative to the hook body in the rotation direction of the film-tearing shaft, and when the hook is facing the top of the cover, the hook nozzle extends upward beyond the bearing plane to enter the pre-reserved film-tearing opening on the food box sealing film.

2. The film-tearing device of the cooking machine according to claim 1, characterized in that: The angle between the hook body and the hook tip is less than or equal to 90 degrees.

3. The film-tearing device of the cooking machine according to claim 1, characterized in that: The top of the hook tip is designed as a smoothly transitioned arc surface.

4. The film-tearing device of the cooking machine according to claim 1, characterized in that: The shaft body is conical in shape, and the axis of the film-tearing shaft is parallel to the bearing plane.

5. The film-tearing device of the cooking machine according to claim 1, characterized in that: The shaft body has a stepped surface that is recessed radially along the shaft body, and the hook is connected to the stepped surface.

6. The film-tearing device of the cooking machine according to any one of claims 1 to 5, characterized in that: The film-tearing shaft is a one-piece molded structure.

7. The film-tearing device of the cooking machine according to any one of claims 1 to 5, characterized in that: The hook is connected to the shaft body and slides radially along the shaft body. An elastic element is connected between the hook and the shaft body to make the hook always tend to move away from the shaft body.

8. The film-tearing device of the cooking machine according to claim 1, characterized in that: The film-tearing device also includes a film-tearing motor, which is connected to the cover and is driven by the film-tearing shaft to drive the film-tearing shaft to rotate and roll up and tear off the sealing film on the food box.

9. A cooking machine, characterized in that: Includes the film-tearing device as described in any one of claims 1 to 8.

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