Tableware conveying device with high detection accuracy and food distribution equipment

Abstract

The invention discloses a tableware conveying device with high detection accuracy and food distribution equipment, and relates to the technical field of food equipment, the tableware conveying device comprises a driving rack and a conveying assembly arranged on the driving rack, and the conveying assembly comprises a tableware bearing frame; the driving rack is provided with a detection assembly capable of detecting tableware on the tableware bearing frame, the detection assembly comprises a first detection sensor arranged on the side wall of the driving rack, and specifically, the first detection sensor can detect the tableware bearing frame so as to confirm whether the tableware bearing frame bears the tableware or not; the design that the first detection sensor is obliquely installed on the driving rack is adopted, so that the output end of the first detection sensor can point to the outer side wall of tableware, the detection angle of the sensor is optimized, the detection area of the sensor is optimized, it is ensured that the sensor can accurately confirm that the tableware is borne on the tableware bearing frame, and the situations of false detection and missing detection are reduced; and the overall reliability and stability of the system are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of food equipment, and in particular to a tableware conveying device and food dispensing equipment with high detection accuracy. Background Art

[0002] In the modern catering service industry, the application of automated tableware conveying devices and food dispensing equipment is becoming more and more widespread. These devices have greatly improved the quality and efficiency of catering services through efficient and precise operation. However, in actual application, these devices often face a series of technical challenges, especially in tableware detection and identification.

[0003] In the past debugging process, we found a common problem. The tableware sent by customers, especially bowls, could be accurately detected during the internal debugging of the factory, but once installed in the on-site environment, the detection often failed. After in-depth analysis, we identified the following key problems: Different types of tableware have significant differences in their physical properties such as surface texture and glossiness. This inconsistency leads to different detection effects of the sensor, some good and some poor.

[0004] In addition, existing detection sensors are usually installed on the tableware conveying device in a horizontal and transverse direct installation manner. This direct installation method results in a large angle between the sensor and the arc side of the tableware, which limits the detection area of ​​the sensor and makes it impossible to accurately detect whether the tableware is carried on the tableware conveying device. Taking photoelectric sensors and ultrasonic sensors that need to output detection media as examples, the detection media (such as light beams, ultrasonic waves) output by these sensors are prone to reflection deviation when encountering the outer wall of the tableware, resulting in the detection medium being unable to accurately return to the sensor, thereby causing detection failure. For visual sensors, the direct installation method limits their field of view, making it difficult for the sensor to capture the overall image of the bowl, especially when the output end of the visual sensor points to the edge and bottom area of ​​the bowl.

[0005] The present invention is proposed in view of the deficiencies in the prior art. Summary of the invention

[0006] With regard to the detection sensors on the existing tableware conveying devices mentioned above, they are usually installed on the tableware conveying devices in a horizontal and transverse direct installation manner. This direct installation method results in a larger angle between the sensor and the arc side of the tableware, which limits the detection area of ​​the sensor and makes it impossible to accurately detect whether the tableware conveying device is carrying tableware.

[0007] The technical solution adopted by the present invention to solve the technical problem is: A tableware conveying device with high detection accuracy, the tableware conveying device comprising a driving frame and a conveying component arranged on the driving frame, the conveying component comprising a tableware support frame for carrying tableware, the driving frame is provided with a detection component capable of detecting the state of tableware on the tableware support frame, the detection component comprising a first detection sensor arranged on the side wall of the driving frame, the first detection sensor being arranged on the driving frame at an angle so that the output end of the first detection sensor can point to the outer side wall of the tableware.

[0008] In the tableware conveying device with high detection accuracy as described above, the output end of the first detection sensor is higher than the tail end of the first detection sensor.

[0009] As described above, in a tableware conveying device with high detection accuracy, a first assembly portion for assembling a first detection sensor is provided on the side wall of the driving frame, and a connecting member is provided between the first assembly portion and the first detection sensor, and the connecting member enables the first detection sensor to be detachably connected to the first assembly portion.

[0010] In the tableware conveying device with high detection accuracy as described above, the first assembly portion includes a connecting section and an inclined section that are connected to each other, the connecting section is connected to the side wall of the driving frame, and the first detection sensor is assembled on the inclined section.

[0011] As described above, in a tableware conveying device with high detection accuracy, the connecting component includes an assembly hole provided on the inclined section and a connecting piece provided on the first detection sensor, the assembly hole is for the first detection sensor to pass through, and the connecting piece can be connected to the inclined section to fix the first detection sensor on the inclined section.

[0012] In the tableware conveying device with high detection accuracy as described above, there are two connecting members, which are respectively located on both sides of the assembly hole. The two connecting members can respectively abut against both sides of the inclined section to clamp the first detection sensor on the inclined section.

[0013] In the tableware conveying device with high detection accuracy as described above, the driving frame is provided with an avoidance hole arranged corresponding to the output end of the first detection sensor.

[0014] In the tableware conveying device with high detection accuracy as described above, the first detection sensor is a photoelectric sensor, an ultrasonic sensor, a visual sensor or a capacitive sensor.

[0015] In the tableware conveying device with high detection accuracy as described above, the angle between the central axis of the first detection sensor and the horizontal plane is α, wherein α satisfies: 10°≤α≤80°.

[0016] A food dispensing device comprises a casing and a food dispensing device arranged in the casing, wherein a tableware conveying device as described above is arranged in the casing, a food outlet is arranged at the bottom of the food dispensing device, and a tableware inlet and outlet are arranged on the casing. The tableware conveying device also comprises a driving component arranged on a driving frame, wherein the driving component comprises a driving motor and a transmission assembly, and a transmission component is arranged on the conveying assembly, wherein the transmission assembly is arranged between the driving motor and the transmission component and is respectively connected to the two in a transmission manner, and the driving motor can drive the transmission component to move through the transmission assembly, so that the conveying assembly reciprocates the tableware between the tableware inlet and outlet and the food outlet.

[0017] The beneficial effects of the present invention are: The present invention discloses a tableware conveying device and food dispensing equipment with high detection accuracy, which relate to the technical field of food equipment. The tableware conveying device comprises a driving frame and a conveying component arranged on the driving frame, wherein the conveying component comprises a tableware support rack for carrying tableware, and the driving frame is provided with a detection component capable of detecting the state of tableware on the tableware support rack. The detection component comprises a first detection sensor arranged on the side wall of the driving frame. Specifically, the first detection sensor can detect the tableware support rack to confirm whether the tableware support rack carries tableware. By adopting the design that the first detection sensor is obliquely mounted on the driving frame, the output end of the first detection sensor can point to the outer side wall of the tableware, thereby optimizing the detection angle of the sensor, optimizing the detection area of ​​the sensor, ensuring that the sensor can accurately confirm that the tableware support rack carries tableware, reducing false detection and missed detection, and improving the overall reliability and stability of the system.

[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a partial cross-sectional schematic diagram of a tableware conveying device in the prior art; Figure 2 is a rear view schematic diagram of the tableware conveying device of the present invention; Figure 3 It is a partial cross-sectional schematic diagram of the tableware conveying device of the present invention; Figure 4 is a schematic structural diagram of a tableware conveying device of the present invention; Figure 5 for Figure 4 An enlarged schematic diagram of the labeled portion B; Figure 6 It is one of the structural schematic diagrams of the food dispensing device of the present invention; Figure 7 for Figure 6 Schematic cross-sectional view along line AA; Figure 8 This is the second structural schematic diagram of the food dispensing device of the present invention; Fig. 9 It is one of the exploded schematic diagrams of the food dispensing device of the present invention; Fig.10 This is the second exploded schematic diagram of the food dispensing device of the present invention; Fig.11 The third exploded schematic diagram of the food dispensing device of the present invention; Fig.12 This is one of the structural schematic diagrams of the rice storage bucket of the present invention; Fig.13 This is the second structural schematic diagram of the rice storage bucket of the present invention; Fig.14 It is another structural schematic diagram of the tableware support rack of the present invention. DETAILED DESCRIPTION

[0020] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] like Figures 2 to 14 As shown, a tableware conveying device with high detection accuracy in this embodiment, the tableware conveying device 5 includes a driving frame 53 and a conveying component 51 arranged on the driving frame 53, the conveying component 51 includes a tableware supporting frame 512 for carrying tableware, the driving frame 53 is provided with a detection component capable of detecting the state of tableware on the tableware supporting frame 512, the detection component includes a first detection sensor 537 arranged on the side wall of the driving frame 53, the first detection sensor 537 is tilted on the driving frame 53 so that the output end of the first detection sensor 537 can point to the outer wall of the tableware.

[0022] Specifically, the first detection sensor 537 can detect the cutlery support rack 512 to confirm whether there are cutlery on the cutlery support rack 512. By adopting the design that the first detection sensor 537 is obliquely mounted on the drive frame 53, the output end of the first detection sensor 537 can point to the outer wall of the cutlery, thereby optimizing the detection angle of the sensor, optimizing the detection area of ​​the sensor, and ensuring that the sensor can accurately confirm that there are cutlery on the cutlery support rack 512, reducing false detection and missed detection, and improving the overall reliability and stability of the system.

[0023] Preferably, the first detection sensor 537 of the present embodiment is a detection component such as a photoelectric sensor, an ultrasonic sensor, a visual sensor or a capacitive sensor.

[0024] Preferably, the first detection sensor 537 adopts a detection component such as a photoelectric sensor or an ultrasonic sensor that requires a detection medium (such as a light beam, ultrasonic wave, etc.) to detect tableware. The design of tilted assembly of the first detection sensor 537 can reduce the angle between the output detection medium and the side wall of the tableware, so that the detection medium is nearly vertical or perpendicular to the arc surface of the bowl, effectively reducing the reflection deviation problem of the detection medium (such as a light beam, ultrasonic wave, etc.).

[0025] Preferably, taking the first detection sensor 537 as a photoelectric sensor as an example, since the surface sidewall concave-convex texture and glossiness of some tableware (such as bowls, plates, etc.) vary greatly, this will affect the detection effect of the photoelectric sensor. The photoelectric sensor relies on reflected light for detection. If the surface of the bowl is uneven or the reflection characteristics are different, the sensor will not receive consistent signals, thereby affecting the detection. Figure 1 As shown, the angle between the light beam emitted by the existing horizontally mounted photoelectric sensor and the arc side of the bowl is relatively large, resulting in an unsatisfactory angle of the emitted light, and part of the light cannot be well reflected back to the sensor, resulting in the failure to detect the bowl.

[0026] The present application adopts a design of tilting the photoelectric sensor on the drive frame 53, which can reduce the angle between the emitted light and the side wall of the tableware, making the light nearly vertical or vertical to the arc surface of the bowl, thereby increasing the possibility of light being reflected back to the sensor and reducing detection failures due to inconsistent bowl surfaces. In addition, the light ranger emitted by the obliquely mounted sensor can cover the surface of the tableware as much as possible, especially the arc part, reducing dead angle areas where light cannot be reflected back.

[0027] Furthermore, by optimizing the angle of light emitted by the photoelectric sensor, the detection stability of the sensor under different surface conditions of tableware is improved, thereby enhancing the reliability of the detection system.

[0028] In other embodiments, the first detection sensor 537 is an ultrasonic sensor, which detects objects by emitting ultrasonic waves and receiving their reflected waves. The design of tilting the ultrasonic sensor on the drive frame 53 can avoid scattering of ultrasonic waves and inaccurate detection. By tilting the sensor, the emission and reception angles of ultrasonic waves can be optimized to improve the accuracy of detection.

[0029] In addition, ultrasonic sensors can reduce the impact of gloss and color on the surface of tableware by detecting the reflection of sound waves, and are suitable for tableware made of various materials.

[0030] In other embodiments, the first detection sensor 537 is a visual sensor (camera). For objects with irregular shapes or specific angles such as tableware, the design of tilting the visual sensor on the drive frame 53 can effectively expand the field of view of the visual sensor, thereby improving the accuracy of detection and having a wide range of applications.

[0031] In other embodiments, the first detection sensor 537 can also adopt a capacitive sensor to determine the presence of an object by detecting the change in capacitance when the object approaches the sensor. By detecting the change in capacitance, it does not rely on the reflected signal, thereby avoiding the influence of the surface texture and glossiness of the tableware on the detection. After adjusting the installation angle (such as oblique installation), the photoelectric sensor can improve the detection accuracy of the bowl. The user can choose the appropriate design according to actual needs.

[0032] like Figures 2 to 14 As shown, the output end of the first detection sensor 537 of this embodiment is higher than the tail end of the first detection sensor 537 .

[0033] Specifically, when the output end of the sensor is higher than the tail end, its detection medium (such as light beam, ultrasonic wave, etc.) can better cover the entire surface of the tableware, rather than being limited to a certain plane. This design helps to detect different heights and angles of the tableware, and improves the comprehensive monitoring capability of the tableware status.

[0034] Furthermore, this tilted design can optimize the reflection path of the detection medium and reduce the signal reflection deviation problem caused by improper placement of the sensor, thereby improving the accuracy and reliability of the detection.

[0035] like Figures 2 to 14 As shown, a first assembly portion 533 for assembling a first detection sensor 537 is provided on the side wall of the driving frame 53 of the present embodiment, and a connecting member is provided between the first assembly portion 533 and the first detection sensor 537, and the connecting member enables the first detection sensor 537 to be detachably connected to the first assembly portion 533.

[0036] When the sensor needs to be maintained, repaired or replaced, the operator can quickly remove and reinstall it, reducing equipment downtime and keeping maintenance and replacement costs relatively low.

[0037] Specifically, the detachable connection design allows the sensor to be easily adjusted in position and angle to adapt to different detection needs. Whether it is facing tableware of different sizes and shapes or in different application scenarios, the installation position of the sensor can be flexibly adjusted.

[0038] Furthermore, as technology develops, the detachable design makes it easy to upgrade and replace new sensors at any time, maintaining the advancement and efficiency of the equipment.

[0039] Furthermore, during the equipment production and assembly process, sensors and assembly parts can be produced and tested separately, and quickly connected during final assembly, which simplifies the assembly process and improves production efficiency.

[0040] like Figures 2 to 14 As shown, the first assembly portion 533 of this embodiment includes a connecting section 5331 and an inclined section 5332 which are connected to each other. The connecting section 5331 is connected to the side wall of the driving frame 53 , and the first detection sensor 537 is assembled to the inclined section 5332 .

[0041] Specifically, the inclined section 5332 allows the first detection sensor 537 to be installed at a suitable angle. Such a design enables the detection range of the first detection sensor 537 to better cover the surface of the tableware, reduce detection blind spots, and improve detection accuracy and reliability.

[0042] Specifically, the connecting section 5331 is firmly connected to the side wall of the driving frame 53, providing a solid supporting structure, ensuring that the first detection sensor 537 remains stable during operation and reducing detection errors caused by vibration or other external forces.

[0043] Furthermore, the combined design of the connecting section 5331 and the inclined section 5332 makes the installation of the sensor more flexible, and the angle and position of the connecting section 5331 and the inclined section 5332 can be adjusted according to actual needs to adapt to different detection requirements and environments.

[0044] like Figures 2 to 14 As shown, an extension section 5333 is further provided between the connecting section 5331 and the inclined section 5332 of the present embodiment, and the extension section 5333 extends outwardly so that there is a sufficient distance between the inclined section 5332 and the driving frame 53, so that the output end of the first detection sensor 537 will not be located in the driving frame 53, thereby avoiding mutual interference between the sensor structure, the sensor detection signal and the driving frame structure, ensuring the accuracy of the detection signal, and ensuring that it will not affect the normal operation of the cutlery support frame 512.

[0045] Specifically, the extension section 5333 can ensure a suitable spacing between the inclined section 5332 and the drive frame 53, so that the sensor can be installed in a more ideal position, avoiding the structure of the drive frame 53 from affecting the inclination angle of the sensor, further optimizing the assembly of the sensor and the detection angle and range of the sensor, improving the accuracy and sensitivity of the sensor, and ensuring comprehensive monitoring of the tableware status.

[0046] like Figures 2 to 14As shown, the connecting member of this embodiment includes an assembly hole 5334 provided on the inclined section 5332 and a connecting piece 5335 provided on the first detection sensor 537, wherein the assembly hole 5334 is for the first detection sensor 537 to pass through, and the connecting piece 5335 can be connected to the inclined section 5332 so that the first detection sensor 537 is fixed on the inclined section 5332.

[0047] Specifically, the first detection sensor 537 is assembled and positioned through the assembly hole 5334, and then the first detection sensor 537 is fixed to the inclined section 5332 through the connecting piece 5335. Such a design can simplify the assembly process of the first detection sensor 537, so that the sensor can be quickly and firmly installed in the designated position.

[0048] like Figures 2 to 14 As shown, the number of connecting members 5335 in this embodiment is two, which are respectively located on both sides of the assembly hole 5334. The two connecting members 5335 can respectively abut against the two sides of the inclined section 5332 to clamp the first detection sensor 537 on the inclined section 5332.

[0049] Specifically, by providing a connecting piece 5335 on both sides of the assembly hole 5334, this design enables the first detection sensor 537 to be firmly clamped on the inclined section 5332. Compared with the design of a single connecting piece, this double connecting piece fixing method provides higher stability and reduces the risk of shaking and displacement of the sensor during operation.

[0050] Preferably, the connecting member 5335 can adopt a variety of methods to ensure the stable installation and fixation of the first detection sensor 537. The following are several preferred connection methods: 1: Threaded connection: the connecting piece 5335 and the first detection sensor 537 are threadedly connected to provide a strong fixing force.

[0051] 2: Snap-fit ​​connection: the connector 5335 and the first detection sensor 537 are snap-fitted to achieve quick fixation and disassembly.

[0052] 3: Clamping connection: the connector 5335 and the first detection sensor 537 are clamped together, and the clamping mechanism fixes the sensor on the inclined section, which can provide a stable fixing force.

[0053] You can choose the appropriate design according to actual needs.

[0054] like Figures 2 to 14As shown, the driving frame 53 of this embodiment is provided with an avoidance hole 5371 corresponding to the output end of the first detection sensor 537. Such a design can prevent the side wall of the driving frame 53 from affecting the detection of the first detection sensor 537, thereby ensuring that the detection medium output by the first detection sensor 537 that uses a photoelectric sensor or an ultrasonic sensor to detect tableware (such as a light beam, ultrasonic wave, etc.) can be accurately guided to the outside of the tableware on the tableware support frame 512.

[0055] like Figures 2 to 14 As shown, the angle between the central axis of the first detection sensor 537 of this embodiment and the horizontal plane is α, wherein α satisfies: 10°≤α≤80°. Specifically, the horizontal plane is a horizontal plane parallel to the supporting surface at the bottom of the cutlery support bracket 512. By setting the first detection sensor 537 with an inclination angle ranging from 10° to 80°, the detection blind area can be effectively reduced, so that the sensor can cover the key detection area of ​​the cutlery, thereby improving the accuracy and reliability of the detection. A moderate angle enables the sensor to avoid detection dead angles or errors that may be caused by vertical or overly parallel settings, thereby improving the detection accuracy. If it is less than this range, an angle that is too small may cause the sensor to be close to parallel with the surface of the cutlery, resulting in too small a contact area and the inability to accurately detect the cutlery. If it is greater than this range, an angle that is too large may cause the sensor to be tilted too much and the characteristics of the cutlery surface cannot be effectively captured.

[0056] Within this angle range, the sensor can avoid interference caused by light reflection or other environmental factors. Especially for optical sensors, it can reduce detection errors caused by reflection.

[0057] When α is 10°, the sensor is tilted more gently, which is suitable for detecting shorter tableware because this angle can better capture the key parts of short tableware.

[0058] When α is 80°, the sensor is installed almost vertically, which is suitable for detecting high tableware. This angle can effectively cover the surface features of high tableware.

[0059] When α is 45°, the sensor is at a medium tilt angle, which is suitable for detecting tableware of moderate height and can achieve a balance between detection range and accuracy.

[0060] like Figures 2 to 14 As shown, the cutlery support rack 512 of this embodiment includes a tray 5121 and a limiting ring 5123 provided on the tray 5121 , wherein the limiting ring 5123 is located above the tray 5121 , and a connecting assembly 5124 is provided between the limiting ring 5123 and the tray 5121 .

[0061] With such a design, the limiting ring 5123 can limit the tableware of larger size (such as wider or taller), ensuring that the tableware will not shift or fall over due to shaking during the transportation process.

[0062] Preferably, the connecting component 5124 is provided with an avoidance opening 5125, through which the avoidance opening 5125 ensures that the detection medium output by the first detection sensor 537 that uses a photoelectric sensor or an ultrasonic sensor that requires a detection medium (such as a light beam, ultrasonic wave, etc.) to detect tableware can be accurately guided to the outside of the tableware on the tableware support rack 512, thereby avoiding the tableware support rack 512 affecting the detection accuracy of the first detection sensor 537.

[0063] Preferably, the connection assembly 5124 includes a plurality of circumferentially arranged connection columns, and the avoidance opening 5125 is the distance between adjacent connection columns, which has the advantage of a simple structure.

[0064] Preferably, the cutlery support rack 512 also includes a bottom limiting gasket 5122 disposed at the bottom of the tray 5121, and the bottom limiting gasket 5122 can limit the cutlery having grooves or special shapes at the bottom, and the bottom limiting gasket 5122 can cooperate with the cutlery having grooves or special shapes at the bottom to firmly fix the cutlery and prevent them from shifting during transportation.

[0065] Preferably, the tableware can be limited by a single limiting ring 5123 or a bottom limiting gasket 5122, or by the cooperation of the two. This flexibility enables the tableware support 512 to adapt to tableware of different types and sizes, providing a wider range of adaptability.

[0066] like Figures 2 to 14 As shown, the food dispensing device of this embodiment includes a casing 1 and a food dispensing device 2 arranged in the casing 1, the casing 1 is provided with a tableware conveying device 5 as described in any of the above items, the bottom of the food dispensing device 2 is provided with a food outlet 21, the casing 1 is provided with a tableware inlet and outlet 11, the tableware conveying device 5 also includes a driving component 52 arranged on a driving frame 53, the driving component 52 includes a driving motor 521 and a transmission assembly 522, a transmission member 511 is provided on the conveying assembly 51, the transmission assembly 522 is arranged between the driving motor 521 and the transmission member 511, and is respectively connected to the two in a transmission manner, the driving motor 521 can drive the transmission member 511 to move through the transmission assembly 522, so that the conveying assembly 51 can reciprocate the tableware between the tableware inlet and outlet 11 and the food outlet 21.

[0067] The food dispensing device designed in this way can accurately detect whether there are cutlery on the cutlery support rack 512, thereby avoiding the situation where there is no cutlery on the cutlery support rack 512 but the cutlery support rack 512 is still driven to move to the bottom of the food dispensing device 2 below the food dispensing port 21 to perform the food dispensing process.

[0068] like Figures 2 to 14 As shown, in this embodiment, the transmission component 511 is located on one side of the driving frame 53, the driving motor 521 is arranged on the outer side wall of the driving frame 53 adjacent to the transmission component 511, and the transmission assembly 522 is arranged between the driving motor 521 and the transmission component 511, and is respectively connected to the two by transmission. With such a design, the driving motor 521 and the transmission component 511 are separately arranged, and the driving motor 521 is arranged on the outer side wall of the driving frame 53 adjacent to the transmission component 511, which can avoid overlapping of the driving motor and the transmission component, and avoid the tableware conveying device 5 from occupying more space in the width direction, so that the whole machine of the food dispensing equipment applied to the tableware conveying device is more miniaturized and the structure is more compact.

[0069] like Figures 2 to 14 As shown, the transmission assembly 522 of this embodiment includes a first synchronous wheel 523 provided on the output end of the driving motor 521 , a second synchronous wheel 524 provided on the transmission member 511 , and a synchronous belt 525 provided between the first synchronous wheel 523 and the second synchronous wheel 524 .

[0070] Preferably, a synchronous belt and a synchronous wheel are used for transmission. Since the synchronous belt transmission allows the drive motor 521 to be installed on the drive frame 53 close to the outer wall of the transmission component 511, instead of using a design in which the drive motor 521 is assembled on the side of the drive frame and connected to the transmission component 511 through a coupling, this arrangement saves space inside the equipment and makes the entire tableware conveying device more compact and miniaturized.

[0071] Furthermore, the elasticity of the synchronous belt allows the system to better achieve soft starting and soft stopping, which can significantly reduce the impact, vibration and noise caused by sudden starting and stopping in the old model using coupling transmission, improve the stability of the equipment and user experience, and the synchronous belt and synchronous wheel transmission have higher adaptability and elasticity, making the tableware conveying device more reliable and stable.

[0072] Preferably, a synchronous belt drive system is usually quieter than a coupling drive system, which can effectively reduce the noise level during operation and effectively improve the user experience.

[0073] Specifically, the synchronous belt and synchronous wheel system will naturally jump teeth or slip when overloaded. This feature can respond to abnormal conditions more promptly, thereby providing more effective overload protection. Compared with the old model that uses overload protection by twisting off the coupling when overloaded, the synchronous belt and synchronous wheel system causes less damage when overloaded, and the feedback time is shorter, so the overload of the transmission component 522 can be detected more quickly, which not only improves the safety of the equipment, but also reduces potential damage and maintenance needs.

[0074] Preferably, the transmission assembly 522 can also be implemented in the form of a gear set or a chain, and a suitable design can be selected according to actual needs.

[0075] like Figures 2 to 14 As shown, the driving component 52 of this embodiment also includes a motor fixing portion 526 slidably connected to the driving frame 53, the driving motor 521 is assembled to the motor fixing portion 526, and the driving frame 53 is also provided with a synchronous belt tensioning device 54, the synchronous belt tensioning device 54 includes an adjusting portion 541 fixedly arranged on the driving frame 53 and an adjusting component 542 arranged on the adjusting portion 541, the adjusting component 542 is connected to the motor fixing portion 526, specifically, the position of the motor fixing portion 526 on the driving frame 53 is further adjusted by the adjusting component 542, so as to The position of the drive motor 521 on the drive frame 53 is adjusted, thereby adjusting the distance between the first synchronous wheel 523 on the drive motor 521 and the second synchronous wheel 524 on the transmission member 511. This design can easily adjust the tension of the synchronous belt 525 to ensure optimal transmission efficiency and durability. In addition, such a design can facilitate maintenance of the synchronous belt. When the synchronous belt needs maintenance, the distance between the first synchronous wheel 523 and the second synchronous wheel 524 can be appropriately adjusted to remove or replace the synchronous belt. This has the advantages of simple structure and easy operation.

[0076] like Figures 2 to 14 As shown, the adjustment component 542 of this embodiment includes an adjustment screw 543 threadedly connected to the adjustment part 541, and one end of the adjustment screw 543 is connected to the motor fixing part 526. By screwing the adjustment screw 543, the position of the drive motor 521 on the motor fixing part 526 on the drive frame 53 can be adjusted without complicated tools or skills, and there is no need to reinstall the drive motor during the adjustment process. The adjustment can be completed by simply rotating the adjustment screw. The adjustment process is fast and does not require complicated operations, which reduces operational risks and saves maintenance time. It has the advantages of simple structure and easy operation.

[0077] Preferably, the threaded adjustment screw can accurately adjust the motor position, so that the tension of the synchronous belt can be adjusted very carefully to ensure that the equipment operates in the best condition. Moreover, when the adjustment screw is adjusted into place, the self-locking or locking fixing component of the adjustment screw 543 itself can ensure that the motor position remains stable and is not easily displaced due to vibration or other factors.

[0078] Preferably, the adjustment assembly 542 of this embodiment also includes an adjustment nut 544, which is sleeved on the outside of the adjustment screw 543 to increase the threaded connection volume of the adjustment screw 543, which helps to more firmly maintain the position of the drive motor, thereby reducing possible loosening or displacement of the drive motor during operation.

[0079] Preferably, the adjusting nut can share part of the load of the adjusting screw, so that the screw is not easily worn or damaged during long-term use, thereby extending the service life of the component.

[0080] Furthermore, the adjusting nut 544 can also be used to lock the adjusting nut to prevent the adjusting nut from accidentally loosening due to vibration or other mechanical stress.

[0081] like Figures 2 to 14 As shown, the driving frame 53 of this embodiment includes a transverse moving section 531, a turning section 532 and a lifting section 534, the turning section 532 is arranged between the transverse moving section 531 and the lifting section 534, the transverse moving section 531 is provided with a dining opening 535, and the lifting section 534 is provided with a tableware conveying opening 536, and the height of the tableware conveying opening 536 is higher than the height of the dining opening 535.

[0082] Specifically, the tableware delivery port 536 is arranged corresponding to the tableware inlet and outlet 11 on the housing 1 , and the dining port 535 is arranged corresponding to the dining port 21 at the bottom of the food dispensing device 2 .

[0083] Specifically, by setting the cutlery delivery port 536 at a position higher than the height of the dining port 535, and then conveying the cutlery at the cutlery delivery port 536 to the dining port 535 through the conveying component 51 for serving the meal, and after serving the meal, conveying the cutlery back to the cutlery delivery port 536 through the conveying component 51, it is possible to make it unnecessary for the cutlery inlet and outlet 11 for the user to place the cutlery below the food dispensing device, but to convey the cutlery to the bottom of the food dispensing device through the cutlery delivery device. Therefore, while setting the cutlery delivery port 536 on the cutlery delivery device 5 to match the height of the user so that the user can place the cutlery, the height of the position of the food dispensing device in the casing can be further lowered, which is beneficial to reducing the overall volume of the food dispensing device, facilitating the overall transportation and placement of the food dispensing device, and also facilitating the user to add rice through the food dispensing device.

[0084] Preferably, the driving frame 53 of the present embodiment is L-shaped so that there is an assembly space between the inner sides of the transverse section 531 and the lifting section 534, thereby providing sufficient assembly space for components such as the food dispensing device 2 and the driving motor 521, which is conducive to making the structure of the food dispensing equipment more compact and miniaturized.

[0085] like Figures 2 to 14 As shown, the transmission component 511 of this embodiment is located on one side of the turning section 532 or the lateral movement section 531 , and the driving motor 521 is located on the front side, the rear side or the top wall of the lifting section 534 .

[0086] Preferably, the driving motor 521 in this embodiment is back-mounted on the lifting section 534 , that is, is disposed on the rear side of the lifting section 534 .

[0087] Preferably, the first detection sensor 537 is located at the tableware conveying port 536, and can detect whether there are tableware on the tableware supporting rack 512 located at the tableware conveying port 536, so that before the meal serving begins, it can be confirmed whether there are tableware on the tableware supporting rack 512. When it is detected that there are tableware on the tableware supporting rack 512, the meal serving operates normally, and the tableware supporting rack 512 supporting the tableware is moved to the bottom of the food dispensing device 2 for meal serving. When it is detected that there are no tableware on the tableware supporting rack 512, the tableware supporting rack 512 will not move, and the meal serving process will not operate until the tableware is detected to be on the tableware supporting rack 512, the meal serving process is implemented, thereby effectively ensuring the correct operation of the meal serving process.

[0088] like Figures 2 to 14 As shown, the detection component of this embodiment includes a second detection sensor 538 and a rice detection sensor 539, both of which are arranged on the driving frame 53. Both are located at the dining port 535. The second detection sensor 538 can detect whether there are tableware on the tableware support frame 512, and the rice detection sensor 539 can detect whether there is food in the tableware. If there is rice, the meal will no longer be repeated. This dual detection function ensures that after the system detects the tableware, it can further confirm the content in the tableware to avoid repeated actions.

[0089] Preferably, the rice detection sensor 539 includes an optical fiber sensor, and the second detection sensor 538 adopts a photoelectric sensor, which can adapt to tableware of different types and materials, solving the problem that only a single type of tableware could be detected when relying solely on optical fiber sensors. This makes the system more flexible and reliable when facing various tableware, and enables the detection component to detect different types of tableware, making it more applicable.

[0090] Preferably, the conveying component 51 of this embodiment also includes a conveying chain and a chain arc guide groove 513, the path of the conveying chain forms a closed-loop path, the number of the conveying chains is two, and they are respectively arranged on the opposite sides of the driving frame 53, and the two conveying chains are respectively connected to the two sides of the cutlery support frame 512. With such a design, the conveying chain can effectively and stably drive the cutlery support frame 4 to move.

[0091] Preferably, the chain arc guide groove 513 corresponds to the conveying chain one by one and is used to assemble the conveying chain. Through the guiding cooperation between the chain arc guide groove 513 and the conveying chain, the conveying chain can maintain a stable moving state during transportation.

[0092] Preferably, the transmission component 511 of this embodiment includes a rotating shaft 514 and a sprocket 515 arranged on the rotating shaft 514, and the sprocket 515 corresponds one-to-one to the conveying chain. One end of the rotating shaft 514 passes through the driving frame 53 and is connected to the second synchronous wheel 524. With such a design, the driving motor 521 can stably drive the rotating shaft 514 to rotate through the transmission assembly 532, thereby driving the conveying chain to rotate through the sprocket 515.

[0093] Preferably, a slag collecting plate 530 is provided at one end of the driving frame 53 close to the dining opening 535 in the present embodiment, and the slag collecting plate 530 can catch the food splashed out when serving the food, making it convenient for the user to clean up.

[0094] Preferably, the food dispensing equipment in the present embodiment is a rice cooker, and the food dispensing device 2 is a rice dispensing device. The rice dispensing device can adopt the rice storage bucket 24, the rice scraping mechanism 22 and the rice cutting mechanism 23 of the existing structure, as long as the rice dispensing operation can be realized. The rice dispensing device disclosed in Patent No. CN221438462U can also be adopted to realize the rice dispensing work of various amounts of rice. The appropriate design can be selected according to actual needs.

[0095] Preferably, a cutting member 241 is provided in the rice storage bucket 24 of the present embodiment, and the cutting member 241 can cut and disperse the rice in the rice storage bucket 24, which is beneficial to discharge the rice in the rice storage bucket 24 and avoids the rice from accumulating for too long and forming lumps.

[0096] Preferably, the bottom of the rice storage bucket 24 has an outlet for discharging rice, and the rice can be discharged through the bottom outlet of the rice storage bucket 24 under the action of its own weight.

[0097] Preferably, the cutting member 241 includes at least one cutting tube. The rice is pressed toward the cutting tube under its own weight and the weight of other rice. The cutting tube cuts and disperses the agglomerated rice to facilitate the rice to fall.

[0098] Preferably, in other embodiments, there are multiple cutting tubes, which are spaced apart in the rice storage bucket 24, thereby expanding the cutting range of the cutting member 241 and ensuring that the rice can be affected by the cutting tubes no matter where it is accumulated, thereby preventing the problem of local agglomeration.

[0099] Preferably, the cross-sectional shape of the cutting tube is a polygonal shape such as a rhombus or a triangle.

[0100] Preferably, at least one side wall of the rice storage bucket 24 is inclined, and the inclination of the side wall is different from that of the other side walls. Such a design makes the rice storage bucket 24 irregular and asymmetrical in shape, so that an asymmetrical supporting force is formed in the rice storage bucket 24, so that the rice cannot be firmly supported in the bucket, and the rice is prevented from forming a "bridging" effect in the bucket, that is, the rice supports each other and cannot slide down. This design reduces the residue and blockage of rice in the bucket, ensures the smoothness of each discharge operation, and can be discharged smoothly from the bottom opening under the action of its own weight.

[0101] In other embodiments, the cutting component 241 may also adopt an electric structure, such as providing a cutting motor and a cutting tool on the rice storage bucket 24, and the cutting motor drives the cutting tool to rotate in the rice storage bucket 24 to cut the rice in the rice storage bucket 24. The appropriate design can be selected according to actual needs.

[0102] Preferably, the front and rear sides of the casing 1 are both provided with door bodies 12, so that the user can open the casing from different directions. This double-door design significantly improves the accessibility of the device. The user can fully clean and maintain the interior of the casing without moving the equipment. It has the advantages of simple structure and easy operation.

[0103] Preferably, a power-off safety device is provided between the door body 12 and the casing 1, so that when the door body 12 is opened on the casing 1, all electrical components are powered off and stop working. This safety measure effectively prevents electrical hazards that may be caused by misoperation during maintenance or cleaning, and ensures the safety of the operator.

[0104] Preferably, the power-off safety device may adopt: Mechanical interlocking device: The mechanical interlock device usually includes a mechanical switch and a linkage device. When the door is closed, the linkage device will keep the switch in the on state; when the door is opened, the linkage device will trigger the switch to disconnect the circuit. The mechanical interlock ensures that the circuit is only connected when the door is completely closed through physical connection. Once the door is opened, the linkage mechanism will force the switch to disconnect the power supply.

[0105] Magnetic interlock switch: The magnetic interlock switch consists of a magnet and a magnetic induction switch. The magnet is usually installed on the door body, and the induction switch is installed on the door frame. When the door body is closed, the magnet approaches the induction switch, and the switch senses the magnetic field and keeps the circuit connected; when the door body is opened, the magnetic field disappears, and the induction switch disconnects the circuit, thereby cutting off the power supply.

[0106] Photoelectric interlock switch: Photoelectric interlock switches use a pairing system of light beams and receivers. The light source is usually installed on one side of the door frame, and the receiver is installed on the other side. When the door is closed, the light beam is received normally, keeping the circuit connected; when the door is opened, the light beam is interrupted and the receiver triggers the switch to disconnect the circuit.

[0107] Spring-loaded micro switch: The micro switch is installed on the edge of the door body and is equipped with a spring or cam mechanism. The switch senses the open and closed state of the door body through mechanical action. When the door body is closed, the spring or cam presses the switch button and the circuit is connected; when the door body is opened, the button pops up and the switch disconnects the circuit. You can choose the appropriate design according to actual needs.

[0108] Preferably, a rice adding port is provided on the top of the casing 1, and the top of the rice storage bucket 24 is communicated with the rice adding port. A cover plate 13 capable of closing the rice adding port is provided on the casing 1. With such a design, the user can add rice to the rice storage bucket 24 by opening the cover plate 13, without stopping the machine to change buckets for adding rice, thereby achieving uninterrupted rice preparation.

[0109] Preferably, the cover plate 13 and the two side walls of the casing 1 are made of heat-insulating materials to insulate three sides of the rice storage bucket 24 to form 3D three-dimensional insulation. The top insulation can prevent water vapor from condensing and flowing away, thereby causing the rice to become dry.

[0110] Preferably, the casing 1 is provided with a cover 14 capable of closing the cutlery inlet and outlet 11. The cutlery inlet and outlet 11 can be closed when not serving food. The cover 14 can prevent dust, dirt or other debris from entering the casing 1 through the cutlery inlet and outlet 11, thereby ensuring the cleanliness of the internal environment of the device and avoiding contamination of the cutlery or affecting the normal operation of the device.

[0111] Preferably, the cover body 14 is made of a transparent material, so that the user can observe whether there are tableware on the tableware support frame 512 without opening the cover body 14 from the outside.

[0112] Preferably, the rice cutting mechanism 23 is detachably connected to the housing 1. When the food dispensing device is not needed for rice making, the user can open the corresponding door 12 on the housing 1, remove the rice cutting mechanism 23, and clean the inside of the housing 1. Preferably, the food dispensing device also includes a serving plate 25. When the food dispensing device is not needed for serving rice, the user can also switch the rice cutting mechanism 23 to the serving plate 25, and then start the rice scraping mechanism 22 to clear the leftover rice in the rice storage bucket 24 into the serving plate, so that the user can clean the leftover rice in the rice storage bucket in a unified manner, making the leftover rice processing process simpler and more efficient. The user can easily complete the cleaning of the leftover rice in the rice storage bucket without the need for additional tools or complicated operations.

[0113] Preferably, a moving component 3 is also provided at the bottom of the food dispensing device to facilitate users to move the food dispensing device. For example, some schools require students to get meals directly in the classroom without going to the canteen. In this case, the food dispensing device can be pushed to each classroom for getting meals.

[0114] Preferably, the moving assembly 3 includes a plurality of moving wheels or universal wheels.

Claims

1. A tableware conveying device with high detection accuracy, characterized in that: The tableware conveying device (5) comprises a driving frame (53) and a conveying component (51) arranged on the driving frame (53); the conveying component (51) comprises a tableware support frame (512) for carrying tableware; the driving frame (53) is provided with a detection component capable of detecting the state of tableware on the tableware support frame (512); the detection component comprises a first detection sensor (537) arranged on a side wall of the driving frame (53); the first detection sensor (537) is arranged on the driving frame (53) at an angle so that an output end of the first detection sensor (537) can point to an outer side wall of the tableware.

2. A tableware conveying device with high detection accuracy according to claim 1, characterized in that: The output end of the first detection sensor (537) is higher than the tail end of the first detection sensor (537).

3. A tableware conveying device with high detection accuracy according to claim 1, characterized in that: A first assembly portion (533) for assembling a first detection sensor (537) is provided on a side wall of the driving frame (53), and a connecting member is provided between the first assembly portion (533) and the first detection sensor (537), wherein the connecting member enables the first detection sensor (537) to be detachably connected to the first assembly portion (533).

4. A tableware conveying device with high detection accuracy according to claim 3, characterized in that: The first assembly portion (533) comprises a connecting section (5331) and an inclined section (5332) which are connected to each other, the connecting section (5331) is connected to a side wall of the driving frame (53), and the first detection sensor (537) is assembled on the inclined section (5332).

5. A tableware conveying device with high detection accuracy according to claim 4, characterized in that: The connecting component comprises an assembly hole (5334) provided on the inclined section (5332) and a connecting piece (5335) provided on the first detection sensor (537), wherein the assembly hole (5334) is for the first detection sensor (537) to pass through, and the connecting piece (5335) can be connected to the inclined section (5332) so that the first detection sensor (537) is fixed on the inclined section (5332).

6. A tableware conveying device with high detection accuracy according to claim 5, characterized in that: There are two connecting members (5335), which are respectively located on both sides of the assembly hole (5334). The two connecting members (5335) can respectively abut against both sides of the inclined section (5332) to clamp the first detection sensor (537) on the inclined section (5332).

7. A tableware conveying device with high detection accuracy according to any one of claims 1 to 6, characterized in that: The driving frame (53) is provided with an avoidance hole (5371) arranged corresponding to the output end of the first detection sensor (537).

8. A tableware conveying device with high detection accuracy according to any one of claims 1 to 6, characterized in that: The first detection sensor (537) is a photoelectric sensor, an ultrasonic sensor, a visual sensor or a capacitive sensor.

9. The tableware conveying device with high detection accuracy according to any one of claims 1 to 6, characterized in that: The angle between the central axis of the first detection sensor (537) and the horizontal plane is α, where α satisfies: 10°≤α≤80°.

10. A food dispensing device, characterized in that The invention comprises a housing (1) and a food dispensing device (2) arranged in the housing (1), wherein the housing (1) is provided with a tableware conveying device (5) according to any one of claims 1 to 9, wherein a discharge port (21) is arranged at the bottom of the food dispensing device (2), and a tableware inlet and outlet (11) is arranged on the housing (1). The tableware conveying device (5) further comprises a driving component (52) arranged on a driving frame (53), wherein the driving component (52) comprises a driving motor (521) and a transmission assembly (522), wherein a transmission component (511) is arranged on the conveying assembly (51), wherein the transmission assembly (522) is arranged between the driving motor (521) and the transmission component (511) and is respectively connected to the two components in a transmission manner, wherein the driving motor (521) can drive the transmission component (511) to move via the transmission assembly (522), so that the conveying assembly (51) reciprocates and conveys tableware between the tableware inlet and outlet (11) and the discharge port (21).

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