A conveying device and a method of conveying articles

Abstract

This invention discloses a conveying device and a method for conveying items. The conveying device includes a frame, an elastic element, a drive device, and rollers. The elastic element, drive device, and rollers are connected to the frame. The rollers are connected to a conveying track of a track system. The drive device drives the rollers to move the conveying device on the conveying track. The elastic element applies an elastic force to the rollers through the frame, pointing towards the conveying track, so that the rollers abut against the conveying track. The conveying device of this application can operate in three-dimensional space, improving space utilization and having low operating noise. The rollers of the conveying device maintain a cooperative connection with the track, reducing the risk of the conveying device slipping off the track or derailing, and improving the safety and reliability of the transmission system. The positioning device of the conveying device enables precise "point-to-point" transmission of items to the user.

Description

Technical Field

[0001] This invention relates to an article conveying device, and more particularly to a powered conveying device that runs on a space track and a method for conveying articles using the conveying device. Background Technology

[0002] With the rapid development of the logistics industry, higher demands are being placed on the fast and accurate transport of goods over short distances, such as delivering food and / or beverages to customers in restaurants or transporting stored goods in warehouses. Currently, there are already conveyor systems available, utilizing conveyor belt systems and gravity transport systems to transport goods.

[0003] Revolving sushi conveyor systems transport food and / or beverages via a conveyor mechanism (e.g., a conveyor belt), from which customers retrieve their food and / or beverages (or containers) at their seats. In this process, the conveying speed of all food and / or beverages is determined by the conveyor mechanism and cannot be freely adjusted. Furthermore, because the food and / or beverages are placed on the conveyor, they are prone to slipping on steep inclines, making it unsuitable for cross-delivery of food across multiple levels within a restaurant.

[0004] Gravity-based transport systems involve placing items in a conveyor belt, which then slides down a track under gravity, transporting the items to a table connected to the end of the track. Because gravity transport is used, the operating speed of the conveyor belt is limited by the shape of the track, making it difficult to control flexibly and placing higher demands on the design of both the track and the conveyor belt. Furthermore, the sliding guide components and track generate significant noise during the gravitational descent. Summary of the Invention

[0005] This application proposes a conveying device and a method for conveying items, which can transport items in three-dimensional space. The operating speed of the conveying device can be flexibly controlled, the operating mode of the conveying device is diverse, the track adaptability is good, the operating noise is low, and the conveying device has multiple functions, including entertainment functions.

[0006] To achieve the objectives of this application, the following technical solution is adopted:

[0007] In a first aspect, this application provides a conveying device that runs on a track system. The conveying device includes a frame, an elastic element, a drive device, and rollers. The elastic element, drive device, and rollers are fixed to the frame. The rollers are connected to the conveying track of the track system. The drive device drives the rollers to move the conveying device on the conveying track. The elastic element applies an elastic force to the rollers through the frame, pointing towards the conveying track, so that the rollers abut against the conveying track.

[0008] In one possible design, the conveying device further includes a speed controller fixed to the frame, which is an electronic speed control switch or a gear set.

[0009] In one possible design, the roller is connected to the inner side of the conveyor track. The frame includes two main beams that are hinged together. The elastic element is connected to the two main beams and undergoes compressive deformation. An elastic force is applied to the rollers through the two main beams, pointing outward from the conveyor track, so that the rollers abut against the inner side of the conveyor track.

[0010] In one possible design, the roller is connected to the outer side of the conveyor track, the frame includes two main beams that are hinged together, the elastic element is connected to the two main beams respectively and generates tensile deformation, and the two main beams apply an elastic force to the roller pointing towards the inside of the conveyor track so that the roller abuts against the outer side of the conveyor track.

[0011] In one possible design, the roller is connected to the inner side of the conveyor track. The frame includes a main beam and two wheel frames. The elastic element is connected to the two wheel frames respectively and generates compressive deformation. An elastic force is applied to the roller through the two wheel frames, pointing towards the inner side of the conveyor track, so that the roller abuts against the inner side of the conveyor track.

[0012] In one possible design, the conveying device further includes a positioning device fixed to the frame, the positioning device acquiring the position information of the conveying device in the track system.

[0013] In one possible design, the positioning device is an RFID reader, which scans RFID tags at preset locations on the track system to obtain the location information of the transmission device on the track system.

[0014] In one possible design, the positioning device is an optical sensor that scans an optical tag at a preset position on the track system to obtain the position information of the transmission device on the track system.

[0015] In one possible design, the transmission device further includes a main controller and a communication device, wherein the main controller is used to control the operation of the transmission device, and the communication device is used to receive remote control commands or send status information of the transmission device.

[0016] In one possible design, the transmission device further includes a multimedia device for generating various combinations of video, images, sound, and / or light under the control of the master controller.

[0017] Secondly, this application provides a method for conveying articles using the conveying device according to any one of the first aspects, the method comprising: loading articles onto the conveying device; causing the conveying device to run along a track system to convey the articles to a target position on the track system; wherein, the rollers of the conveying device are connected to the conveying track of the track system, the rollers are driven by the driving device to drive the conveying device to run on the conveying track, and the elastic force pointing towards the conveying track is applied to the rollers by the elastic element on the frame, and the elastic force is used to make the rollers abut against the conveying track.

[0018] In one possible design, the speed of the motor is controlled by the speed controller, thereby controlling the operating speed of the conveyor on the track system.

[0019] In one possible design, the roller is connected to the inner side of the conveyor track, and the elastic element is connected to the two main beams respectively and generates compression deformation. The two main beams apply an elastic force to the roller pointing outward from the conveyor track, and the elastic force is used to make the roller abut against the inner side of the conveyor track.

[0020] In one possible design, the roller is connected to the outer side of the conveyor track, and the elastic element is connected to two main beams respectively and undergoes tensile deformation. The two main beams apply an elastic force to the roller pointing towards the inside of the conveyor track, and the elastic force is used to make the roller abut against the outer side of the conveyor track.

[0021] In one possible design, the roller is connected to the inner side of the conveyor track, and the elastic element is connected to two wheel frames respectively and compresses and deforms. An elastic force is applied to the roller pointing towards the inner side of the conveyor track through the two wheel frames, and the elastic force is used to make the roller abut against the inner side of the conveyor track.

[0022] In one possible design, the positioning device obtains the position information of the conveying device in the track system, and the operating speed of the conveying device is controlled according to the position information.

[0023] In one possible design, the position information of the transmission device on the transmission track is obtained by scanning the RFID tag at a preset position of the track system using the RFID reader.

[0024] In one possible design, the optical sensor scans an optical tag at a preset position on the track system to obtain the position information of the conveying device on the conveying track.

[0025] In one possible design, the operation of the transmission device is controlled by the main controller, and remote control commands are received or status information of the transmission device is sent through the communication device.

[0026] In one possible design, the multimedia device is controlled by a master controller to produce various combinations of video, images, sound, and / or light.

[0027] The conveying device and method used in this application employ a power-driven conveying system that can transport items in three-dimensional space, improving space utilization. It allows for flexible speed control during operation, adapts to various track systems, and operates with low noise. The conveying device applies an elastic force to the rollers to maintain their connection with the track, reducing the risk of slippage or derailment and improving the safety and reliability of the transmission system. Furthermore, a positioning device enables precise point-to-point delivery of items to the user. This conveying device and method can be applied to the transport of items in three-dimensional spaces such as restaurants, warehouses, and logistics facilities, helping to reduce labor costs and enhance the enjoyment of the transport process, thus possessing high market application value. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the operating structure of the power transmission device according to an embodiment of the present invention;

[0029] Figure 2 This is a cross-sectional schematic diagram of the conveyor track according to an embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of the spatial structure of the transmission device according to an embodiment of the present invention;

[0031] Figure 4 This is a top view of the conveying device according to an embodiment of the present invention;

[0032] Figure 5 This is a bottom view of the conveying device according to an embodiment of the present invention;

[0033] Figure 6 This is a side view of the conveying device according to an embodiment of the present invention;

[0034] Figure 7 This is a schematic diagram illustrating the working principle of the elastic element of the conveying device according to an embodiment of the present invention;

[0035] Figure 8 This is a schematic diagram illustrating the working principle of the elastic element of another conveying device according to an embodiment of the present invention;

[0036] Figure 9 This is a schematic diagram of the connection between the conveying device and the conveying track according to an embodiment of the present invention;

[0037] Figure 10 This is a schematic diagram of the transmission device of the present invention operating in a positioning system according to an embodiment of the invention;

[0038] Figure 11 This is a schematic diagram of the structure of the transmission device assembly according to an embodiment of the present invention;

[0039] Figure 12 This is a circuit structure block diagram of the transmission device according to an embodiment of the present invention. Detailed Implementation

[0040] To further illustrate the technical means and effects adopted by this application to achieve its intended purpose, the specific structure and effects of this application will be described in detail below with reference to the accompanying drawings and embodiments. Hereinafter, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features, nor should they be construed as limiting the order of technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0041] This application provides a power transmission device that can operate on a track system for transporting goods in a three-dimensional space with one or more floors, such as a restaurant or warehouse. As an example, this application describes the power transmission device used in a restaurant. It should be understood that the above exemplary description should not constitute a limitation on the transmission device of this application. Figure 1 A schematic diagram of the operating structure of a power transmission device is shown, such as... Figure 1 As shown, the conveyor 1 runs on the track system 2, which includes a conveyor track 21, a track start point 22, and a track end point 23. The track start point 22 is the position where the conveyor 1 begins operation, and the track end point 23 is the position where the conveyor 1 terminates operation. Optionally, the track start point 22 and the track end point 23 are connected to each other, forming a closed loop in the track system 2. Alternatively, the track start point 22 and the track end point 23 are not connected, forming an open loop in the track system 2.

[0042] The track system is used to connect specific areas of the restaurant. In one example, track start point 22 could be located in the item distribution area ( Figure 1 (Indicated by dashed lines), track endpoint 23 can be located in the item receiving area ( Figure 1(Represented by dashed lines). The item distribution area is used for the preparation, distribution, preparation, and / or placement of food and / or beverages. This area can be the restaurant's back kitchen area, where food and / or beverages are cooked and / or prepared. Alternatively, the item distribution area can be an area connected to the back kitchen area, used for distributing or placing food and / or beverages. The item receiving area is used for customers to receive items. In a restaurant, the item receiving area 2 can be a dining area where one or more tables and chairs are placed; it can also be a customer pick-up area where customers take their food and / or beverages. Optionally, the restaurant may also include other areas, such as a recycling area, for recycling the conveyor device 1, food scraps, and leftover beverages, and for cleaning the conveyor device 1 and the containers holding the food and / or beverages. The containers can be bowls, plates, dishes, or other containers for holding food and / or beverages; this application does not limit the scope of these containers. The number of item distribution area, item receiving area, and recycling area can be one or more, depending on actual needs; this application does not impose any restrictions on this. It is understood that, given limited restaurant space, item distribution area 1 and recycling area 3 can be combined into one area.

[0043] The track system 2 may include one or more conveying tracks 21 for guiding the movement of the conveying device 1. Figure 2 A schematic cross-sectional view of the conveyor track is shown. Figure 2 As shown, the cross-section of the conveyor track 21 can be circular, elliptical, square, rectangular, T-shaped, I-shaped, or U-shaped. In one embodiment, the track system 2 consists of a single (or "one") conveyor track, such as... Figure 2 As shown in (A), the cross-section of the conveyor track 21 includes a T-shape, an I-shape, or a U-shape, or a variation of the above cross-sections. To prevent the conveyor device 1 from detaching from a conveyor track, the conveyor device 1 is surrounded by rollers at its bottom. In another embodiment, the track system 2 consists of two parallel conveyor tracks, such as... Figure 2As shown in (B), the cross-section of the conveyor track 21 includes a circle, ellipse, square, or rectangle, or a variation thereof. In another embodiment, the track system 2 consists of three parallel conveyor tracks, wherein the two outer conveyor tracks can be the same as the two tracks described above; the third track is located between the two conveyor tracks, and the third track can be a rack and pinion track, which engages with a gear on the conveyor device 1 to drive the conveyor device 1 along the track. In yet another embodiment, the track system 2 includes four parallel conveyor tracks, the cross-section of which includes a circle, ellipse, square, or rectangle, or a variation thereof, and the distance between the two inner conveyor tracks is smaller than the distance between the outer tracks. The two inner tracks are sliding planes, and the two outer tracks are guide planes. The sliding planes are lower than the guide planes. The item is in the conveyor device 1, which runs on the two inner tracks, while the two outer tracks prevent the conveyor device from tipping off the tracks during operation. For systems with three or four transport tracks, the cross-section of the transport tracks can be referenced. Figure 2 The track cross-section setup shown is not described in detail here.

[0044] The following is in conjunction with the appendix Figure 3-8 The conveying device is described. Figure 3 A spatial structure schematic diagram of a conveying device according to an embodiment of the present invention is shown. Figure 4-7 A plan view of the conveying device along its main direction is shown. The conveying device 1 is used to load various items and transport them along a track system. The conveying device includes a frame 101, a drive unit 107, and rollers 103. The frame 101 is used to mount or suspend the various components of the conveying device, and the drive unit 107 drives the rollers 103 to rotate. The rollers 103 cooperate with the conveying track to form a rolling guide mechanism, driving the conveying device to run on the conveying track.

[0045] The frame 101 is used to mount or suspend various components of the conveying device. In one example, the frame 101 includes two main beams, which are hinged at or near their centers by hinges 104, forming a symmetrical "X" shape or a similar "X" shape. Each main beam has a shaft hole 106 at both ends, for a total of four shaft holes 106 in the frame 101. The shaft holes 106 are used to fix and mount axles 114. The axles 114 are mounted in the shaft hole positions by fasteners 105. Rollers 103 are mounted on the axles by bearings and can rotate around the axles. The fasteners 105 can be fasteners such as fixing nuts, fixing flanges, or fixing bushings. In another example, such as... Figure 8As shown, the frame 301 of the conveying device can be "H" shaped or similar, with two main beams 330 arranged parallel to each other on the front and rear sides, and the two main beams 330 connected by an "H" shaped connecting rod. In another example, the frame 301 of the conveying device can be "I" shaped or similar, with two main beams arranged parallel to each other on the front and rear sides, and the two main beams 330 connected by a connecting rod.

[0046] The drive unit 107 drives the roller 103 to rotate. The roller 103 is connected to the conveyor track to form a rolling guide mechanism, driving the conveyor device to run on the conveyor track. The drive unit 107 can be a motor. The main body of the motor is fixedly connected to the main beam of the frame through motor mounting holes 113 around the shaft hole. The motor shaft is fixedly connected to the roller 103. When the motor shaft rotates, it can drive the roller 103 to rotate around the axle, thereby driving the conveyor device 1 to move on the conveyor track. The frame 101 is fixedly connected to the housing 102. The housing 102 is used to house the circuit part of the conveyor device and other necessary components. A switch 108 and a sensor 109 are provided on the outside of the housing. The switch 108 is connected to the power supply of the conveyor device and is used to control the power on and off of the conveyor device. The sensor 109 is used to acquire specific information. For example, the sensor 109 can be used as a positioning device for the conveyor device. Specifically, it can be an optical sensor or a radio frequency sensor, which scans the tag located on the conveyor track to obtain the position information of the conveyor device on the track. Sensor 109 can also be a distance sensor, used to obtain the distance to the forward-moving conveyor, thereby determining whether to slow down or stop to avoid collisions. Optionally, in addition to installing motors on two rollers, motors can also be installed on all four rollers, or on any one or three of them. The installation method of the motors can refer to the installation method on two rollers, and will not be described again here.

[0047] Optionally, in Figure 8 In the structure shown, one main beam can be used to connect the drive device and the roller, while another main beam connects to a non-powered roller; alternatively, two main beams can be used to connect the drive device and the roller; or more main beams can be used, with all or some of them connecting the drive device and the roller, and the remaining main beams connecting to non-powered rollers, thus achieving combinations of different drive methods. It is understood that the non-powered roller can also be a guide that can slide on the conveyor track, such as a guide that surrounds the circumference or part of the circumference of the conveyor track. In the case of a drive device and rollers, this application does not limit the structure or type of the guide.

[0048] Optionally, a tray may also be installed above the rack 101. The tray is used to hold items, such as food and / or beverages. The tray can be configured to conform to the shape of the items, such as... Figure 9As shown, the holder can be, for example, a dish-shaped container suitable for holding bowls or plates, or a deep groove container suitable for holding beverage bottles.

[0049] To control the speed of the conveyor on the conveyor track, the conveyor may include a speed controller, which can be electronic or mechanical. In one example, the speed controller may be an electronic speed control switch, which can be located in the housing 102 or other suitable locations. The electronic speed control switch can preset the motor speed, or it can receive speed control commands from the main controller of the conveyor and set or adjust the speed of the motor 107 based on the speed control commands, thereby adjusting the operating speed of the conveyor. In another example, the speed controller may be a gear set, which can be located between the motor 107 and the roller 103. Specifically, the input shaft of the gear set is connected to the output shaft of the motor 107, and the output shaft of the gear set is connected to the roller 103. The gear set may have two or more preset input / output gear ratios, and the speed of the roller and the operating speed of the conveyor can be adjusted by manually selecting the input / output gear ratios. Optionally, the gear set can be an electronically controlled gear set. The electronically controlled gear set receives speed control commands sent by the main controller of the transmission device, and sets or adjusts the input / output gear ratio based on the speed control commands, thereby adjusting the rotational speed of the rollers and the operating speed of the transmission device.

[0050] To ensure smooth operation of the conveying device on the conveying track and prevent it from slipping or derailing, the rollers of the conveying device need to maintain a good fit with the conveying track. The conveying device of this application also includes an elastic element 112, which is fixed to the frame 101 and applies an elastic force F to the rollers 103 through the frame 101. This elastic force points towards the contact surface between the rollers 103 and the conveying track, thereby maintaining the fit between the rollers and the conveying track.

[0051] In one embodiment, for example Figure 3-7 The "X"-shaped frame shown has symmetrically arranged elastic element mounting holes 111 on each of the two main beams of the frame 101. The two ends of the elastic element 112 are fixed to the elastic element mounting holes 111 by fasteners 110, thus fixing the elastic element 512 to the two main beams. The parameters of the elastic element can be set as follows: when the roller 103 of the conveying device is engaged with the inner side of the conveying track, such as... Figure 7As shown, the elastic element 112 undergoes compressive deformation, thereby generating an elastic force F extending outward along the axial direction of the elastic element. This elastic force F is transmitted to the roller 103 through the two main beams of the frame 101, pressing the roller 103 against the conveying track. That is, the main beams apply an elastic force pointing outward toward the conveying track to the roller 103, causing the roller to abut against the inner contact surface of the conveying track. Thus, during operation, the roller can always maintain a good fit with the track. The elastic element can be a helical spring or an elastic sheet, or other components or structures capable of generating elastic force; this application does not limit this. Optionally, when the roller 103 of the conveying device is fitted to the outer surface of the conveying track, the elastic element 112 undergoes tensile deformation, thereby generating an elastic force F extending inward along the axial direction of the elastic element. This elastic force F is transmitted to the roller 103 through the two main beams of the frame 101, pressing the roller 103 against the conveying track. That is, the main beams apply an elastic force pointing inward toward the conveying track to the roller 103, causing the roller to abut against the outer contact surface of the track.

[0052] In another embodiment, such as Figure 8 As shown, the frame 301 includes a main beam 330 and a wheel frame 331. The main beam 330 can guide the wheel frame 331 to slide axially along the main beam. One end of the wheel frame 331 is provided with a shaft hole 306 for mounting the drive device 307 and the roller 303, and the other end is provided with an elastic element mounting hole 311. The way in which the drive device 307 and the roller 303 are fixed to the wheel frame 331 through the shaft hole 306 is the same as the way in which the drive device 307 and the roller 303 are fixed to the frame 301 through the shaft hole 506, and will not be described again here. The elastic element 312 surrounds the main beam 330, and both ends of the elastic element 312 are fixed to the elastic element mounting hole 311 by fasteners 310, thereby connecting to the wheel frame 331. Limiting nuts 332 are provided at both ends of the main beam 330. These nuts limit the maximum wheelbase between the two wheel frames 331 (corresponding to the two rollers 303) and prevent the wheel frames 331 from slipping off the main beam. The parameters of the elastic element can be set as follows: when the rollers 303 of the conveying device are engaged with the inner surface of the conveying track, such as... Figure 9As shown, the elastic element 312 undergoes compressive deformation, thereby generating an elastic force F extending outward along the axial direction of the elastic element. This elastic force F is transmitted to the roller 303 through the main beam 330 and wheel frame 331 of the frame 301, pressing the roller 303 against the conveying track so that the roller abuts against the inner contact surface of the conveying track. Thus, during operation, the roller can always maintain a good fit with the track. Optionally, when the roller 303 of the conveying device is fitted to the outer side of the conveying track, the elastic element 312 undergoes tensile deformation, thereby generating an elastic force F extending inward along the axial direction of the elastic element. This elastic force F is transmitted to the roller 303 through the two main beams 330 and wheel frame 331 of the frame 301, pressing the roller 303 against the conveying track so that the roller abuts against the outer contact surface of the track.

[0053] Furthermore, to improve the adaptability of the conveying device to the track system, for example, the spacing of the conveying tracks in the track system may be different, the elastic force generated by the elastic element 112 can be set or adjusted by the elastic force adjustment device, thereby flexibly adjusting the contact pressure and friction between the rollers of the conveying device and the track.

[0054] In one example, such as Figure 3 and 7 As shown, the elastic force adjustment device includes a sleeve 116, an adjusting nut 117, and an adjusting bolt 118. The side of the sleeve 116 is fixed to the elastic element mounting hole 111. One end of the sleeve is provided with the adjusting nut and adjusting bolt, and the other end of the sleeve accommodates the end of the elastic element 112. When the adjusting nut is rotated, the adjusting bolt moves along the axial direction of the sleeve, changing the depth to which the elastic element extends into the sleeve. With the sleeve position unchanged, the relative position of the two ends of the elastic element 112 is changed, thereby enabling the setting or adjustment of the contact pressure and friction between the roller and the conveyor track.

[0055] In another example, the mounting holes 111 of the elastic elements on the two main beams can be configured as slots extending along the axial direction of the main beams. The fixing member 110 can move within the slot. By adjusting the position of the fixing member, the relative positions of the two ends of the elastic element 112 are changed, thereby enabling the setting or adjustment of the contact pressure and friction between the roller and the conveyor track. Optionally, a notch can be provided at a predetermined position in the slot, so that when the fixing member moves within the slot, the notch can guide the fixing member to stop at an appropriate position, thereby achieving the purpose of symmetrically adjusting the positions of the two ends of the elastic element.

[0056] In another example, such as Figure 8As shown, the elastic element fixing hole 311 on the wheel frame 331 can be configured as a slot extending along the axial direction of the wheel frame 331. The fixing element 310 can move in the slot. By adjusting the position of the fixing element, the relative positions of the two ends of the elastic element 312 are changed, thereby setting or adjusting the contact pressure and friction between the roller and the conveyor track. Optionally, a notch can be provided at a predetermined position in the slot, so that when the fixing element moves in the slot, the notch can guide the fixing element to stop at an appropriate position, thereby achieving the purpose of symmetrically adjusting the positions of the two ends of the elastic element.

[0057] The following combination Figure 9 Further explanation of the connection method between the conveying device and the conveying track. Figure 9 A schematic diagram shows the connection between a conveyor and a conveyor track with different cross-sections. In one example, such as... Figure 9 As shown in (A), the track system consists of two parallel conveyor tracks. Rollers for the conveying device are positioned inside the two tracks, with their cross-sections conforming to the track cross-sections. For example, when the track cross-section is a convex circle, the roller cross-section is an arc-shaped groove conforming to the aforementioned circle. This allows for greater contact between the roller and the track, thus better maintaining the roller on the conveyor track. An elastic element (not shown) applies an elastic force F pointing outwards from the track to the roller via the frame, thereby maintaining the roller's mating connection with the conveyor track. In another example, as... Figure 9 As shown in (B), the track system consists of two parallel conveyor tracks. Rollers for the conveying device are positioned on the outer sides of the two tracks, with their cross-sections conforming to the cross-sections of the tracks. For example, when the track cross-section is a (convex) circle, the roller cross-section is a groove conforming to that circle. An elastic element (not shown) applies an elastic force F, pointing inwards towards the track, to the roller via the frame, thereby maintaining the roller's engagement with the conveyor track. In another example, as... Figure 9 As shown in (C), the track system is a single conveyor track. Rollers on both sides of the conveyor are positioned on the outer sides of the single track. The cross-section of the rollers is adapted to the cross-section of the track. For example, when the track cross-section is similar to an I-beam, the protrusions of the rollers are adapted to the shape of the recesses in the track. An elastic element (not shown) applies an elastic force F towards the track to the rollers through the frame, thereby maintaining the rollers' engagement with the conveyor track. Optionally, to ensure the conveyor runs smoothly on the single conveyor track without tipping over, a safety device can be provided, such as a safety wheel positioned below the rollers against the conveyor track or its support. The safety device can employ common safety structures for monorail systems in the art, and this application is not limited to this. In yet another example, such as... Figure 9As shown in (D), the track system consists of two parallel conveyor tracks. Rollers on both sides of the conveyor device are positioned above the two tracks, with the cross-section of the rollers conforming to the cross-section of the tracks. For example, when the track cross-section is a (convex) circle, the roller cross-section is a groove conforming to the aforementioned circle. Elastic members 112 are located on both sides of the frame and are fixedly connected to the frame. When the conveyor device is placed on the tracks, the elastic members 112 press against the tracks from the outside and deform, thereby applying an elastic force F pointing downwards towards the tracks through the frame to the rollers, maintaining the rollers' engagement with the conveyor tracks. It is understood that the engagement between the rollers and the conveyor tracks is not limited to the above form; by interchangering the cross-sectional shapes of the rollers and the conveyor tracks, they can also engage, allowing the rollers to be better held on the conveyor tracks.

[0058] The following combination Figure 10 The positioning device of the conveying device and its working method are explained. Figure 10 A schematic diagram of a conveyor operating on a track system is shown. The conveyor includes a positioning device that acquires corresponding position information on the track system and sends the position information to the main controller of the conveyor. The main controller controls the operating speed of the conveyor based on the position information, such as accelerating, decelerating, continuing operation, or stopping.

[0059] In one embodiment, the positioning device of the conveying device can be an RFID positioning device, which can be an RFID reader. One or more RFID tags (e.g., N tags) are installed on the conveying track of the track system. The RFID tags can be placed on the conveying track or on the track support, so that when the RFID reader approaches the RFID tag, it can scan the information on the RFID tag. Each RFID tag can be associated one-to-one with a specific location point on the track system, thereby identifying the location information of these specific locations. Figure 10 As shown, RFID tags T1, T2, T3...Tn can be placed on the conveyor track next to the dining table or chair to identify the location information of that table or chair. For simplicity, Figure 10 Only the dining table and chairs corresponding to RFID tag T2 are shown, so that tag T2 can uniquely identify the dining table and chairs at that location. Optionally, the RFID tag can also be placed slightly forward of the aforementioned track position, thereby allowing an appropriate braking distance for the conveyor device to stop next to the dining table or chair. During the operation of conveyor devices V1-V3, the RFID reader can scan RFID tags T1-T3 to obtain the ID information of the RFID tags.

[0060] In another embodiment, the positioning device of the conveying device can be an optical positioning device, which can be an optical sensor. One or more optical tags (e.g., N tags) are disposed on the conveying track of the track system. The optical tags can be disposed on the inside of the conveying track or on the track support, with the pattern or graphic on the optical tag facing the optical sensor so that the pattern or graphic on the optical tag can be scanned by the optical sensor. Each optical tag can correspond one-to-one with a specific location point on the track system, thereby identifying the position information of these specific location points. The positional distribution of optical tags T1, T2, T3...Tn on the track can refer to the distribution method of RFID tags described above, and will not be repeated here.

[0061] The following explanation uses a radio frequency positioning device as an example to illustrate the positioning operation of the transmission device. For example... Figure 10 As shown, when a customer sits down at a table or chair identified by an RFID tag, the information of the food and / or beverage ordered by the customer and the RFID tag T2 is returned to the restaurant's main control device along with the order, establishing a correspondence between the food and / or beverage and the information of the RFID tag T2. The order can be completed by handwritten records by staff or by ordering devices placed on each table or chair. The ordering device can be any known type of smart terminal, such as a mobile phone or tablet; the restaurant's main control device can be a known type of server or smart terminal, and this application does not impose any limitations on this. Using the ordering device, an order can be generated immediately after the customer orders food and / or beverages, thereby improving the efficiency and accuracy of customer ordering. It should be noted that the table or chair number, the ordering device ID placed on the table or chair, and the tag ID of the track position next to the table or chair are in a one-to-one correspondence. This correspondence can be stored on the restaurant's main control device or on each conveying device, allowing for retrieval of the correspondence at any time when needed. To reduce the complexity of the description, this application uses the term "label" for description. It should be understood that the label corresponds to the table or chair and the ordering device placed on the table or chair in terms of location.

[0062] For dishes ordered by customers using RFID tag 2, after the restaurant's kitchen has cooked or prepared the food and / or beverages, it can affix a dish label to the outer packaging of the food and / or beverages. The information on this dish label corresponds to the information on RFID tag T2, which can be obtained from the aforementioned order. Before or during the placement of the food and / or beverages into the conveyor device, the conveyor device scans the dish label using an RFID reader to obtain the information of the target location tag and stores it in the conveyor device. Figure 10In this system, at least three conveyor devices V1, V2, and V3 operate on the track. Food and / or beverages can be placed in any of these three conveyor devices. Taking food and / or beverages placed in conveyor device V2 as an example, after conveyor device V2 acquires and stores the information of the target location tag T2, it begins to run along the track system, sequentially scanning RFID tags T1 and T2, and comparing the acquired RFID tag information with the stored target location tag information (i.e., tag T2). When the information is inconsistent, the main controller of the conveyor device controls the conveyor device to continue running along the track; when the information is consistent, the main controller sends a stop signal to the speed controller, causing the conveyor device to stop at RFID tag T2, waiting for the customer to take the food and / or beverages loaded by the conveyor device. Optionally, the above information comparison process can be performed in the restaurant's main control equipment. In this case, the conveyor device sends the RFID tag information and the stored target location tag information to the restaurant's main control equipment. The main control equipment receives the information, compares it, and then sends the result back to the conveyor device. Optionally, when passing the tag at the predetermined position, the aforementioned main controller or main control device can control the conveying device to accelerate or decelerate.

[0063] When the positioning device of the transmission device is an optical sensor, its working method is similar to that of the radio frequency positioning device mentioned above, except that the method of scanning the tag to obtain tag information is different, which will not be described in detail here.

[0064] In some embodiments, when the positioning device of the conveying device is an RFID positioning device, the food label can be an optical label. In this case, an optical sensor can be further provided on the conveying device to obtain information identifying the food label. In other embodiments, when the positioning device of the conveying device is an optical positioning device, the food label can be an RFID tag. In this case, an RFID reader can be further provided on the conveying device to obtain information identifying the food label.

[0065] In some other embodiments, the conveying device may be equipped with a keyboard input device, allowing staff to input information about the target label into the conveying device, thereby enabling the conveying device to deliver the food and / or beverages it carries to the location of the target label.

[0066] Alternatively, a simplified track system can be used to position the conveyor. In one example, each conveyor track corresponds to a table or chair, and there is only one label at the corresponding position on the track. Food and / or beverages can be directly placed into the conveyor, which then transports the food and / or beverages to the target label and stops, thus eliminating the need to scan the food labels. In another example, each conveyor track corresponds to a table or chair, and a braking device is provided at the corresponding position on the track to prevent the conveyor from continuing forward after reaching that position. The braking device can be a fence or similar barrier that stops the conveyor from moving further when it reaches the corresponding position. This further simplifies the structure of the conveyor, allowing it to be positioned at a predetermined location on the track system.

[0067] The conveying device of this application can also be combined into two or more conveying devices through a traction structure between the conveying devices, thereby transporting a large number of items to the target location at one time. Figure 11 A schematic diagram of the combined conveying device is shown, such as... Figure 11 As shown, a bracket 116 is fixedly mounted on the frame 501 of the conveyor. The bracket 116 can be mounted above the frame using existing fixing devices. The bracket 116 is provided with a groove 119 for loading items (e.g., food and / or beverages), and the groove 119 can be configured to adapt to the shape of the loaded items or containers. Connecting mechanisms 117 and 118 can be provided at the front and rear positions along the track direction of the bracket 116. In one example, the connecting mechanism can be a male connector 117 and a female connector 118 that cooperate with each other, with the male connector 117 inserted into the hole or groove of the female connector 118, thereby connecting two or more conveyor devices together. In another example, the connecting mechanism can be a hook 117 and a hook 118 that cooperate with each other, with the hooks having complementary shapes, and the protrusion of the hook 117 inserted into the recess of the female connector 118, thereby connecting two or more conveyor devices together.

[0068] A transmission device assembly can be composed of multiple power transmission devices connected to each other, or it can be composed of power transmission devices connected to non-power transmission devices.

[0069] In one example, such as Figure 11As shown, the conveying device assembly can consist of a powered conveying device traction-connected to a non-powered conveying device 120. The non-powered conveying device may only include necessary components for conveying items on a track, such as a frame, rollers, and brackets (the frame and rollers are not shown in the figure), omitting the drive unit and circuitry, thus reducing the complexity of the conveying device. The non-powered conveying device may include a recess 119, which can be configured to conform to the shape of the loaded items or containers. Optionally, the non-powered conveying device 120 may include a transparent window 121, a switch 122, a cover opening structure 123, and a perforated structure 124. The transparent window 121 contains a light-emitting device, such as an LED or OLED, which can emit light or emit light according to a preset program. The transparent window 121 may be covered with a transparent material (e.g., transparent PP material) to protect the light-emitting device. The switch 122 can be used to turn the lighting and illumination system of the non-powered conveying device on and off. Optionally, the switch 122 can also be used to turn other electrical components of the non-powered conveying device on and off. The cover opening structure 123 can be used to open the top cover of the bracket, thereby allowing for the installation or maintenance of internal components. The perforated structure 124 can be used for heat dissipation inside the conveying device, and, if a speaker is installed, can also facilitate sound output. It is understood that, in the case of electrical components, a power supply can be provided for the non-powered conveying device.

[0070] In another example, the conveyor assembly can be formed by two or more power-driven conveyors connected together, and the power-driven conveyors can have the same structure. Alternatively, the power-driven conveyors can also have different structures, thereby enabling the transport of different items at once.

[0071] In another example, the conveyor assembly can be formed by a mix of powered and unpowered conveyors, allowing different items to be transported at once as needed.

[0072] The following combination Figure 12 The circuitry of the transmission device will be described. Figure 12 A circuit block diagram of the transmission device is shown, such as... Figure 12 As shown, the circuit 1100 of the transmission device includes components such as a main controller 1110, a speed controller 1120, a sensor 1130, a wireless communication circuit 1140, an input unit 1150, a memory 1160, a display screen 1170, a multimedia circuit 1180, and a power supply 1190. Those skilled in the art will understand that... Figure 12 The circuit structures shown are merely examples of implementation methods and do not constitute a limitation on the transmission device. The transmission device may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0073] The main controller 1110, also known as a processor, is the control center of the transmission device. It connects to various parts of the transmission device via various interfaces and lines, and performs various functions and processes data by running or executing software programs and / or modules stored in the memory 1160, and by calling data stored in the memory 1160. The connections are used to transmit current and / or control signals. The main controller 1110 can be a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The main controller 1110 can implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. The main controller 1110 can also be a combination that implements computing functions, such as including one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc. Optionally, the main controller 1110 may include one or more processor units. Optionally, the main controller 1110 may also integrate an application processor and a modem processor. The application processor mainly handles the operating system, user interface, and applications, while the modem processor is mainly used for wireless communication. It is understood that the modem processor may not be integrated into the main controller 1110.

[0074] The speed controller 1120 is connected to both the main controller 1110 and the motor 107, and is used to control the motor's rotational speed, thereby controlling the speed of the conveyor on the conveyor track. In one example, the speed controller 1120 is the electronic speed control switch mentioned earlier. The electronic speed control switch can receive control commands sent by the main controller and output corresponding current according to the control commands. Under the drive of the current, the motor outputs the corresponding rotational speed, thereby realizing the control of the motor speed. In another example, the speed controller 1120 is the electronically controlled gear set mentioned earlier. The electronically controlled gear set can receive control commands sent by the main controller and adjust the gear combination according to the control commands to output the corresponding rotational speed. Optionally, the speed controller 1120 can automatically or manually preset the required rotational speed, so that the conveyor runs on the conveyor track at the preset rotational speed.

[0075] Sensor 1130 includes at least one optical sensor and / or an RFID reader. The optical sensor is used to scan optical tags on the conveyor track, and the RFID reader is used to scan RFID tags on the conveyor track. The optical sensor and / or RFID reader can also be used to scan food labels. The information acquired by sensor 1130 is processed by the sensor controller and sent to the main controller 1110 for positioning of the conveyor device. Optionally, sensor 1130 may also include a distance sensor, a pressure sensor, and other sensors. The distance sensor can be located in front of the conveyor device to detect the distance to the conveyor device in front and send the distance information to the main controller 1110. The pressure sensor can be located on the bracket of the conveyor device to detect the gravity information transmitted by the bracket and send the gravity information to the main controller 1110. The gravity includes the weight of the bracket itself and the weight of the loaded items. Other sensors can be set according to actual needs, and this application does not limit them.

[0076] The wireless communication circuit 1140 can be used to receive and transmit various signals, such as receiving remote control commands or transmitting status information of the transmission device. The wireless communication circuit includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier (LNA), a duplexer, etc. The wireless communication circuit 1140 can communicate with other devices via a wireless communication network, such as the main control equipment of a restaurant and other transmission devices. The wireless communication circuit can use any communication standard or protocol, including but not limited to 3G networks, 4G networks, 5G networks, etc. The wireless communication circuit may also include short-range wireless transmission modules such as Wi-Fi, Bluetooth, and ZigBee; these communication modules can be existing communication modules and will not be described in detail here.

[0077] Input unit 1150 can be used to receive input numerical or character information. Specifically, input unit 1150 may include touch panel 1152 and other input devices 1154. Touch panel 1152, also known as a touch screen, can collect touch operations performed by the user on or near it (such as operations performed by the user using a finger, stylus, or any suitable object or accessory on or near the touch panel). Optionally, touch panel 1152 can convert the received touch information into touch point coordinates and send them to main controller 1110, and can also receive and execute commands sent by main controller 1110. In addition, touch panel can be implemented using various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to touch panel, input unit 1150 may also include other input devices 1154. Specifically, other input devices 1154 may include, but are not limited to, one or more of physical keyboards, function keys (such as volume control buttons, power buttons, etc.), joysticks, etc.

[0078] The memory 1160 can be used to store software programs and modules. The main controller 1110 executes various functions and data processing of the transmission device by running the software programs and modules stored in the memory 1160. The memory 1160 may include a program storage area and a data storage area. The program storage area may store the operating system, application programs required for at least one function (such as sound playback function, image playback function, etc.), etc.; the data storage area may store data created according to the use of the transmission device (such as audio data, video data, etc.). In addition, the memory may include volatile memory, such as nonvolatile random access memory (NVRAM), phase change RAM (PRAM), magnetoresistive RAM (MRAM), etc., and may also include non-volatile memory, such as at least one disk storage device, electrically erasable programmable read-only memory (EEPROM), flash memory devices, such as NOR flash memory or NAND flash memory, semiconductor devices, such as solid state disks (SSDs), etc.

[0079] The display screen 1170 can be used to display information input by the user or information provided to the user, as well as various interfaces of the transmission device, such as status information. The display screen 1170 can be in the form of a Liquid Crystal Display (LCD), Thin Film Transistor LCD (TFT-LCD), Light Emitting Diode (LED), Organic Light-Emitting Diode (OLED), etc. Optionally, a touch panel 1152 can be placed over the display screen 1170 to form a touch display screen. The display screen 1170 can be mounted on the bracket of the transmission device or on both sides of the frame of the transmission device.

[0080] The multimedia circuit 1180 includes an audio circuit 1182 and a lighting circuit 1184. The audio circuit 1182 may include a speaker and a microphone, and also provides an audio interface between the user and the transmission device. The audio circuit 1182 can receive sound control signals sent by the main controller, thereby controlling the speaker to emit sound effects. The lighting circuit 1184 can receive lighting control signals sent by the main controller, thereby controlling the lighting devices installed on the transmission device. Optionally, the transmission device can emit sound, such as playing a birthday song, greeting customers, or prompting customers to take food and / or drinks from the transmission device, when a trigger condition is met, through a preset program. Alternatively, when a trigger condition is met, the transmission device can emit a specific combination of lights, such as fast flashing, slow flashing, etc., to prompt customers to take food and / or drinks from the transmission device. The transmission device can also be controlled to emit a combination of sound, light, and video content through a preset program. This can improve the entertainment value of the transmission device, thereby enhancing the customer experience. The above-mentioned preset program can be written using programming tools or existing program code can be integrated into the operating system and application of the transmission device; this application does not impose any limitations on this. The aforementioned display screen 1170 and multimedia circuit 1180 can also be collectively referred to as a multimedia device. The multimedia device can generate various combinations of video, images, sound and / or light under the control of the main controller 1110.

[0081] Power supply 1190 supplies power to the various electrical components of the conveyor device. The power supply includes a battery and switch 108 (not shown in the attached diagram). Optionally, the power supply can be logically connected to the main controller 1110 through a power management system. This power management system manages charging, discharging, and power consumption, allowing the main controller 1110 to obtain battery power information and send it to the restaurant's main control equipment. Optionally, the battery can be a rechargeable battery to charge the conveyor device. Furthermore, the battery can be removed from the conveyor device, thus occupying less charging space. In another example, the conveyor device can draw power from the conveyor track of the track system, eliminating the need for a battery. Specifically, the rollers of the conveyor device can be made of conductive material and electrically connected to the power line. Optionally, a power rail or power line can be installed outside the conveyor track, and brushes can be installed on the frame of the conveyor device, electrically connected to the power line. It is understood that, to ensure electrical safety, the conveyor track, power rail, or power line can use a low-voltage power supply sufficient to drive the motor, such as 5V DC. This application will not elaborate further on this.

[0082] In summary, the conveying device and method used in this application utilize a power-driven conveying device that can transport items in three-dimensional space, improving space utilization. It allows for flexible speed control during operation, adapts to various track systems, and operates with low noise. The conveying device applies elastic force to the rollers to maintain their connection with the track, reducing the risk of slippage or derailment and improving the safety and reliability of the transmission system. Furthermore, a positioning device enables precise point-to-point delivery of items to the user. This conveying device and method can be applied to item transport in three-dimensional spaces such as restaurants, warehouses, and logistics facilities, helping to reduce labor costs and enhance the enjoyment of the transport process, thus possessing high market application value.

[0083] The above embodiments of this application are only used to illustrate the principles and structure of this application and are not intended to limit this application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this application are included within the protection scope of this application.

Claims

1. A conveying device that operates on a track system, characterized in that, include: Frame, elastic components, drive unit, and multiple rollers; The elastic element, driving device, and multiple rollers are fixed to the frame. The multiple rollers are connected to the conveying track of the track system. The driving device drives at least some of the multiple rollers to drive the conveying device to run on the conveying track. The elastic element applies an elastic force to the multiple rollers through the frame, pointing towards the conveying track, so that the multiple rollers abut against the conveying track. The frame includes two main beams, which are hinged at or near their centers to form a symmetrical "X" shape or a similar "X" shape. Each main beam has a shaft hole at both ends for fixing an axle. Rollers are mounted on the axles via bearings and rotate around the axles. The rollers are connected to the outer side of the conveyor track. Elastic elements are connected to the two main beams of the frame and undergo tensile deformation. An elastic force is applied to the rollers pointing inwards from the conveyor track through the two main beams, causing the rollers to abut against the outer side of the conveyor track. Alternatively, the rollers are connected to the inner side of the conveyor track, and the elastic elements are connected to the two main beams of the frame and undergo compressive deformation. An elastic force is applied to the rollers pointing outwards from the conveyor track through the two main beams, causing the rollers to abut against the inner side of the conveyor track. The conveying device also includes an elastic force adjustment device and a positioning device; The elastic force adjustment device includes: a sleeve, an adjusting nut, and an adjusting bolt. The side of the sleeve is fixed to the mounting hole of the elastic element. One end of the sleeve is provided with an adjusting nut and an adjusting bolt, and the other end of the sleeve accommodates the end of the elastic element. The positioning device is fixed to the frame and acquires the position information of the conveying device in the track system.

2. The conveying device according to claim 1, characterized in that, Also includes: A speed controller, which is fixed to the frame, is an electronic speed control switch or a gear set.

3. The conveying device according to claim 1 or 2, characterized in that, The positioning device is an RFID reader, which scans RFID tags at preset locations on the track system to obtain the location information of the transmission device on the track system.

4. The conveying device according to claim 1 or 2, characterized in that, The positioning device is an optical sensor, which scans an optical tag at a preset position on the track system to obtain the position information of the transmission device on the track system.

5. The conveying device according to claim 1, characterized in that, Also includes: The main controller and the communication device are used to control the operation of the transmission device, and the communication device is used to receive remote control commands or send status information of the transmission device.

6. The conveying device according to claim 5, characterized in that, Also includes: A multimedia device for generating various combinations of video, images, sound and / or light under the control of a master controller.

7. A method for conveying articles using the conveying device according to any one of claims 1-6, characterized in that, include: Load the items into the conveyor; The conveyor runs along the track system to transport items to the target location on the track system. In this configuration, the rollers of the conveying device are connected to the conveying track of the track system. The drive device drives the rollers to run on the conveying track. An elastic force directed towards the conveying track is applied to the rollers by the elastic elements on the frame, causing the rollers to abut against the conveying track. Alternatively, when the frame consists of two main beams, the rollers are connected to the inner side of the conveying track, with the elastic elements connected to the two main beams and undergoing compressive deformation. An elastic force directed towards the outer side of the conveying track is applied to the rollers by the two main beams, causing the rollers to abut against the inner side of the conveying track. Or, the rollers are connected to the outer side of the conveying track, with the elastic elements connected to the two main beams and undergoing tensile deformation. An elastic force directed towards the inner side of the conveying track is applied to the rollers by the two main beams, causing the rollers to abut against the outer side of the conveying track.

8. The method for conveying articles using the conveying device according to claim 7, characterized in that, The speed of the motor is controlled by the speed controller of the conveying device, thereby controlling the running speed of the conveying device on the track system.

9. The method for conveying articles using the conveying device according to claim 7 or 8, characterized in that, The positioning device obtains the position information of the conveying device in the track system, and controls the operating speed of the conveying device based on the position information.

10. The method for conveying articles using the conveying device according to claim 9, characterized in that, The location information of the transmission device on the transmission track is obtained by scanning the radio frequency tag at a preset position of the track system using the radio frequency reader of the positioning device.

11. The method for conveying articles using the conveying device according to claim 9, characterized in that, The optical sensor of the positioning device scans the optical tag at a preset position on the track system to obtain the position information of the conveying device on the conveying track.

12. The method for conveying articles using the conveying device according to claim 7, characterized in that, The transmission device also includes a main controller and a communication device. The main controller controls the operation of the transmission device, and the communication device receives remote control commands or sends status information of the transmission device.

13. The method for conveying articles using the conveying device according to claim 12, characterized in that, The main controller controls the multimedia devices of the transmission device to produce various combinations of video, images, sound and / or light.

Images