A heating delivery device and a food vending machine

Abstract

This utility model discloses a heated dispensing device and an automatic food vending machine, relating to the field of automatic vending machine technology. In the heated dispensing device, the heated tray is driven by a tray drive mechanism to close or open the heating chamber based on a tray transmission mechanism. The tray transmission mechanism includes a tray transmission base plate, a scissor mechanism, and a tray transmission base plate connected in sequence. The tray transmission base plate is fixedly connected to the inner bottom of the heating chamber. The heated tray is mounted on the tray transmission base plate. The scissor mechanism is driven by the tray drive mechanism to open or close, and the tray transmission base plate is driven by the scissor mechanism to rise or fall. The heated dispensing device of this utility model uses a tray transmission mechanism with a scissor mechanism as its core to cooperate with the tray drive mechanism to realize the lifting and lowering of the heated tray. This results in better reliability and higher stability, ensuring that the heated tray can operate smoothly without tilting or jamming, thereby accurately closing or opening the heating chamber and improving the usability of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of automatic vending machine technology, specifically to a heating and dispensing device and an automatic food vending machine. Background Technology

[0002] Vending machines, also known as automated vending machines, are machines that automatically dispense goods based on the amount of money inserted. They are commonly used equipment in commercial automation. The types, structures, and functions of modern vending machines vary depending on the items they sell, and they mainly include vending machines for snacks, beverages, boxed meals, hamburgers, and blind boxes.

[0003] Vending machines for foods such as boxed meals and hamburgers are often equipped with heating devices that automatically dispense food. For example, utility model patent CN220911498U discloses a microwave oven module with automatic food dispensing function. By setting a liftable base plate below the heating cavity, the base plate provides space on all four sides for food to be placed on and off when lowered, effectively reducing the difficulty of its placement in the vending machine. Furthermore, the setting of a push plate and a second drive allows food on the base plate to be automatically dispensed, improving the user experience while preventing safety accidents. The liftable base plate is mounted on several lead screws (at least two), and the lead screws are connected by a transmission belt. The drive is connected to the lead screws or the transmission belt; that is, the base plate mainly relies on the cooperation of the drive, lead screws, and transmission belt to achieve its lifting and lowering movement.

[0004] However, this mechanism, which uses belt drive with several lead screws (at least two), has significant drawbacks. During use, the belts are prone to wear, loosening, or even skipping teeth, causing these lead screws to rise or fall asynchronously. This directly leads to the tilting or jamming of the liftable base plate, making it impossible to accurately seal the heating chamber, or to prevent it from opening smoothly when shipment is required, resulting in a "cargo jam" malfunction and seriously affecting the availability of the equipment. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art. This utility model provides a heating and dispensing device and an automatic food vending machine. The heating and dispensing device avoids the use of belts and lead screws. Instead, it adopts a pallet transmission mechanism with a scissor mechanism as the core to cooperate with the pallet drive mechanism to realize the lifting and lowering of the heating pallet. This has better reliability and higher stability, ensuring that the heating pallet can run smoothly without tilting or jamming. This allows for accurate closing or opening of the heating chamber, improving the availability of the equipment.

[0006] This utility model provides a heated dispensing device, including a heating mechanism and a dispensing mechanism. Food in the heating mechanism is discharged by the dispensing mechanism. The heating mechanism includes a heating box, a heating inner liner disposed at the top of the heating box, a heating tray disposed below the heating inner liner, a tray transmission mechanism disposed at the bottom of the heating box, and a tray driving mechanism disposed at the bottom of the heating box. The heating inner liner has a downward-opening heating cavity. The heating tray is driven by the tray driving mechanism to close or open the heating cavity based on the tray transmission mechanism.

[0007] The pallet transmission mechanism includes, from bottom to top, a pallet transmission base plate, a scissor mechanism, and a pallet transmission base plate connected in sequence. The pallet transmission base plate is fixedly connected to the inner bottom of the heating box. The heating pallet is mounted on the pallet transmission base plate. The scissor mechanism is opened or closed by the pallet driving mechanism. The pallet transmission base plate is raised or lowered by the scissor mechanism.

[0008] Specifically, the scissor lift mechanism includes a connecting rod and scissor lift units symmetrically arranged at both ends of the connecting rod. Each scissor lift unit includes a pallet drive main rod and a pallet drive secondary rod arranged in a cross configuration. Both the pallet drive main rod and the pallet drive secondary rod are rotatably connected to the connecting rod. The connecting rod passes through the intersection center of the pallet drive main rod and the pallet drive secondary rod. The pallet drive main rod is located on the side away from the geometric center of the connecting rod, and the pallet drive secondary rod is located on the side closer to the geometric center of the connecting rod.

[0009] A first hinge seat is fixedly provided on one side of the upper surface of the pallet transmission base plate, and a sliding seat is slidably provided on the other side of the upper surface of the pallet transmission base plate. The sliding seat slides in a direction close to or away from the first hinge seat.

[0010] A second hinge seat is fixedly provided on one side of the lower surface of the pallet transmission base plate, and a groove plate is fixedly provided on the other side of the lower surface of the pallet transmission base plate; the second hinge seat is located above the first hinge seat, and the groove plate is located above the sliding seat; an elongated hole is provided in the groove plate, and a first pin is movably provided in the elongated hole, and the first pin moves along the elongated hole toward or away from the second hinge seat.

[0011] The upper end of the pallet drive main rod is hinged to the first pin, and the lower end of the pallet drive main rod is hinged to the first hinge seat based on the second pin; the upper end of the pallet drive auxiliary rod is hinged to the second hinge seat based on the third pin, and the lower end of the pallet drive auxiliary rod is hinged to the sliding seat based on the fourth pin.

[0012] A sector gear is fixedly installed on the side of the pallet drive main rod away from the pallet drive auxiliary rod. The rotation center of the sector gear is located on the axis of the second pin shaft, and the sector gear rotates synchronously with the pallet drive main rod.

[0013] Specifically, a rotating wheel is provided at the upper end of the pallet transmission main rod. The rotating wheel is rotatably connected to the first pin shaft, and the circumferential surface of the rotating wheel is tangent to the lower surface of the pallet transmission base plate.

[0014] Specifically, the pallet driving mechanism includes a pallet driving motor and a pallet driving shaft. The pallet driving motor is fixedly mounted on the side of the heating box, and the pallet driving shaft is rotatably mounted on the bottom surface of the heating box. A pallet driving main gear is fixedly mounted at one end of the pallet driving shaft, and two pallet driving secondary gears are fixedly mounted on the main body of the pallet driving shaft. The output end of the pallet driving motor meshes with the pallet driving main gear, and the two pallet driving secondary gears mesh with the sector gear in a one-to-one correspondence.

[0015] Specifically, the heating tray and the tray transmission base plate are connected based on an elastic buffer.

[0016] Specifically, the heating box has an inlet window on its side and an outlet window on its front. An outlet channel is connected to the outside of the outlet window, and an outlet detection photoelectric eye is installed in the outlet channel.

[0017] The movement path of the heating tray has an initial position and an end position. The heating tray at the initial position is flush with the lower edge of the inlet window and the lower edge of the outlet window, and the heating tray at the end position is attached to the lower surface of the heating liner.

[0018] Specifically, the dispensing mechanism includes a dispensing push plate disposed on the inner side of the back of the heating box and a push plate driving mechanism disposed on the outer side of the back of the heating box. The dispensing push plate is located above the initial position of the pallet and below the end position of the pallet. The dispensing push plate is driven by the push plate driving mechanism to move closer to or away from the dispensing window.

[0019] The push plate drive mechanism includes a push plate bracket fixedly mounted on the outer side of the back of the heating box, a push plate drive motor fixedly mounted on the push plate bracket, a push plate guide rail fixedly mounted on the push plate bracket, and a push plate rack movably mounted in the push plate guide rail. One end of the push plate rack is fixedly connected to the delivery push plate, and the push plate rack meshes with the output end of the push plate drive motor. The push plate rack is driven by the push plate drive motor to extend into or retract from the heating box.

[0020] A rack light-shielding plate is fixedly provided on the side of the pusher rack away from the delivery pusher. A front limit photoelectric sensor is provided at the end of the pusher bracket near the heating box, and a rear limit photoelectric sensor is provided at the end of the pusher bracket away from the heating box. The movement path of the rack light-shielding plate passes through the detection window of the front limit photoelectric sensor and the detection window of the rear limit photoelectric sensor.

[0021] A push plate guide sleeve is also fixedly installed on the outer side of the back of the heating box. A push plate guide shaft is fixedly connected to the back of the discharge push plate, and the push plate guide shaft is movably inserted into the push plate guide sleeve.

[0022] Specifically, a microwave generator is installed on the top of the heating box, and a microwave window is provided on the top of the heating inner liner. The output end of the microwave generator is connected to the microwave window.

[0023] The microwave generator includes a waveguide and a magnetron with a heat sink. The output end of the magnetron is connected to the input end of the waveguide, and the output end of the waveguide leads to the microwave window.

[0024] A microwave stirring plate is provided in the heating inner liner, and the microwave stirring plate is located directly below the microwave window; a turntable motor is provided outside the waveguide, and a drive shaft is rotatably provided in the waveguide. One end of the drive shaft is fixedly connected to the microwave stirring plate, and the other end of the drive shaft is engaged with the output end of the turntable motor.

[0025] Specifically, a heating element is provided on the inner wall of the heating liner, and a microwave shielding strip is provided at the bottom of the heating liner around the heating cavity.

[0026] This utility model also provides an automatic food vending machine, which includes a refrigerated cabinet and a heated cabinet. The refrigerated cabinet is equipped with shelves and a conveying mechanism. The heated cabinet is equipped with at least one of the aforementioned heated dispensing devices. The shelves transport food to the heated dispensing device based on the conveying mechanism.

[0027] Compared with the prior art, the beneficial effects of this utility model are:

[0028] In the heated shipping device of this utility model, the scissor mechanism is driven by the pallet drive mechanism to open or close, the pallet transmission base plate is driven by the scissor mechanism to rise or fall, and the heated pallet is driven by the pallet transmission base plate to close or open the heating chamber. The heated shipping device of this utility model avoids the use of belts and lead screws, and instead uses a pallet transmission mechanism with the scissor mechanism as the core to cooperate with the pallet drive mechanism to realize the lifting and lowering of the heated pallet, thereby realizing the closing or opening of the heating chamber. Such a pallet transmission mechanism has better reliability and higher stability, ensuring that the heated pallet can run smoothly without tilting or jamming, thus accurately closing or opening the heating chamber and improving the availability of the equipment. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a first three-dimensional structural schematic diagram of the heating and dispensing device in an embodiment of this utility model;

[0031] Figure 2 This is a second three-dimensional structural schematic diagram of the heating and dispensing device in an embodiment of this utility model;

[0032] Figure 3 This is a third perspective structural diagram of the heating and unloading device in an embodiment of this utility model;

[0033] Figure 4 This is a side view of the pallet transmission mechanism in an embodiment of this utility model;

[0034] Figure 5 This is a perspective structural diagram of the heating tray and the tray transmission mechanism in an embodiment of this utility model;

[0035] Figure 6 This is a three-dimensional structural diagram of the heating tray and the tray transmission mechanism in an embodiment of this utility model;

[0036] Figure 7 This is a schematic diagram of the connection structure between the pallet drive main rod and the slot plate in an embodiment of this utility model;

[0037] Figure 8 This is a three-dimensional structural diagram of the shipping mechanism in an embodiment of this utility model;

[0038] Figure 9 This is a schematic diagram of the top structure of the heating inner liner in an embodiment of this utility model;

[0039] Figure 10 This is a perspective structural diagram of the heating and unloading device in an embodiment of this utility model;

[0040] Figure 11 This is a schematic diagram of the bottom structure of the heating inner liner in an embodiment of this utility model;

[0041] Figure 12 This is a three-dimensional structural diagram of the automatic food vending machine in this embodiment of the utility model;

[0042] Figure 13 This is a schematic diagram of the internal structure of the food vending machine in the embodiment of this utility model;

[0043] Figure 14 This is a schematic diagram of the internal structure of the back of the food vending machine in an embodiment of this utility model;

[0044] Figure 15 This is a three-dimensional structural diagram of the isolation mechanism in an embodiment of this utility model;

[0045] Figure 16 This is a three-dimensional structural diagram of the back of the cabinet panel in an embodiment of this utility model;

[0046] Figure 17 This is a three-dimensional structural diagram of the closing mechanism in an embodiment of this utility model.

[0047] In the attached diagram: 1. Refrigerated cabinet; 2. Heated cabinet; 10. Heated unloading device; 11. Heating mechanism; 12. Unloading mechanism; 20. Shelf; 30. Conveying mechanism; 40. Partition plate; 41. Conveying window; 50. Cabinet panel; 51. Retrieval window; 52. Retrieval platform; 110. Heating box; 111. Incoming window; 112. Outgoing window; 113. Outgoing aisle; 120. Heated inner liner; 121. Microwave window; 122. Heating element; 123. Microwave shielding strip; 124. Moisture venting window; 125. Temperature probe; 13. 0. Heating tray; 131. Elastic buffer; 140. Tray transmission mechanism; 150. Tray drive mechanism; 151. Tray drive shaft; 1511. Tray drive main gear; 1512. Tray drive secondary gear; 160. Microwave generator; 161. Waveguide; 162. Magnetron; 171. Microwave stirring tray; 172. Turntable motor; 173. Drive shaft; 180. Filter; 210. Tray transmission base plate; 211. First hinge seat; 2111. Second pin; 212. Sliding seat; 2121. Fourth pin; 2 20. Pallet transmission base plate; 221. Second hinge seat; 2211. Third pin; 222. Slot plate; 2221. Oblong hole; 2222. First pin; 2223. Rotating wheel; 300. Scissor mechanism; 310. Connecting rod; 320. Scissor unit; 321. Pallet transmission main rod; 3211. Sector gear; 322. Pallet transmission auxiliary rod; 410. Delivery push plate; 420. Push plate drive mechanism; 421. Push plate bracket; 4211. Push plate front limit photoelectric sensor; 4212. Push plate rear limit photoelectric sensor; 422. Push plate Drive motor; 423, push plate guide rail; 424, push plate rack; 4241, rack light shield; 431, push plate guide bushing; 432, push plate guide shaft; 500, isolation mechanism; 510, isolation door frame; 520, electric push rod; 530, isolation guide rail; 540, isolation slide; 550, isolation door panel; 551, roller; 600, sealing mechanism; 610, sealing door frame; 620, sealing motor; 630, coil; 631, traction rope; 640, sealing guide rail; 650, sealing door panel; 651, counterweight. Detailed Implementation

[0048] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0049] Figure 1 This diagram shows a first perspective view of the heated shipping device in an embodiment of the present invention. Figure 2 This diagram shows a second perspective view of the heated shipping device in an embodiment of the present invention. Figure 3 A third perspective structural diagram of the heating and shipping device in an embodiment of this utility model is shown.

[0050] This utility model provides a heated dispensing device 10, which includes a heating mechanism 11 and a dispensing mechanism 12. Food in the heating mechanism 11 is discharged by the dispensing mechanism 12. The heating mechanism 11 includes a heating box 110, a heating inner liner 120 disposed at the top of the heating box 110, a heating tray 130 disposed below the heating inner liner 120, a tray transmission mechanism 140 disposed at the bottom of the heating box 110, and a tray driving mechanism 150 disposed at the bottom of the heating box 110. The heating inner liner 120 has a downwardly open heating cavity. The heating tray 130 is driven by the tray driving mechanism 150 based on the tray transmission mechanism 140 to close or open the heating cavity.

[0051] Figure 4 The diagram shows a side view of the pallet transmission mechanism in an embodiment of the present invention. The pallet transmission mechanism 140 includes, from bottom to top, a pallet transmission base plate 210, a scissor mechanism 300, and a pallet transmission base plate 220 connected in sequence. The pallet transmission base plate 210 is fixedly connected to the inner bottom of the heating box 110. The heating pallet 130 is mounted on the pallet transmission base plate 220. The scissor mechanism 300 is driven by the pallet driving mechanism 150 to open or close. The pallet transmission base plate 220 is driven by the scissor mechanism 300 to rise or fall.

[0052] In the heating and unloading device 10 of this utility model, the scissor mechanism 300 is driven by the pallet driving mechanism 150 to open or close, the pallet transmission base plate 220 is driven by the scissor mechanism 300 to rise or fall, and the heating pallet 130 is driven by the pallet transmission base plate 220 to close or open the heating chamber. The heating and unloading device 10 of this utility model avoids the use of belts and lead screws, and instead uses a pallet transmission mechanism 140 with the scissor mechanism 300 as the core to cooperate with the pallet driving mechanism 150 to realize the lifting and lowering movement of the heating pallet 130, thereby realizing the closing or opening of the heating chamber. Such a pallet transmission mechanism 140 has better reliability and higher stability, ensuring that the heating pallet 130 can run smoothly without tilting or jamming, thereby accurately closing or opening the heating chamber and improving the availability of the equipment.

[0053] Figure 5The diagram shows a perspective view of the heating tray and tray transmission mechanism in an embodiment of the present invention. The scissor mechanism 300 includes a connecting rod 310 and scissor units 320 symmetrically arranged at both ends of the connecting rod 310. Each scissor unit 320 includes a tray transmission main rod 321 and a tray transmission secondary rod 322 arranged in a cross configuration. Both the tray transmission main rod 321 and the tray transmission secondary rod 322 are rotatably connected to the connecting rod 310. The connecting rod 310 passes through the intersection center of the tray transmission main rod 321 and the tray transmission secondary rod 322. The tray transmission main rod 321 is located on the side away from the geometric center of the connecting rod 310, and the tray transmission secondary rod 322 is located on the side close to the geometric center of the connecting rod 310.

[0054] Two identical scissor units 320 are installed at each end of the connecting rod 310. This symmetrical design ensures that the scissor mechanism 300 is balanced in force and stable in motion. The pallet drive main rod 321 and pallet drive secondary rod 322 of the scissor unit 320 form an X-shaped structure with a variable included angle on the connecting rod 310, which lays the foundation for the scissor mechanism to flexibly expand and retract. The pallet drive main rod 321 is located on the opposite outer side, and the pallet drive secondary rod 322 is located on the opposite inner side, which can effectively avoid structural interference.

[0055] Figure 6 This diagram shows a three-dimensional structural schematic of the heating tray and the tray transmission mechanism in an embodiment of the present invention. Please refer to the diagram for further details. Figure 4 and Figure 5 A first hinge seat 211 is fixedly disposed on one side of the upper surface of the pallet transmission base plate 210, and a sliding seat 212 is slidably disposed on the other side of the upper surface of the pallet transmission base plate 210. The sliding seat 212 slides in a direction close to or away from the first hinge seat 211. A second hinge seat 221 is fixedly disposed on one side of the lower surface of the pallet transmission base plate 220, and a groove plate 222 is fixedly disposed on the other side of the lower surface of the pallet transmission base plate 220. The second hinge seat 221 is located above the first hinge seat 211, and the groove plate 222 is located above the sliding seat 212. A groove plate 222 is formed in the groove plate 222. An elongated hole 2221 is provided, in which a first pin 2222 is movably disposed. The first pin 2222 moves along the elongated hole 2221 toward or away from the second hinge seat 221. The upper end of the pallet drive main rod 321 is hinged to the first pin 2222, and the lower end of the pallet drive main rod 321 is hinged to the first hinge seat 211 based on a second pin 2111. The upper end of the pallet drive auxiliary rod 322 is hinged to the second hinge seat 221 based on a third pin 2211, and the lower end of the pallet drive auxiliary rod 322 is hinged to the sliding seat 212 based on a fourth pin 2121.

[0056] The upper end of the pallet drive main rod 321 can rotate and move horizontally, while the lower end can only rotate. The upper end of the pallet drive auxiliary rod 322 can only rotate, while the lower end can rotate and move horizontally. The upper end of the pallet drive main rod 321 and the lower end of the pallet drive auxiliary rod 322 are located on the same side. That is, the upper and lower ends of one side of the X-shaped structure can move horizontally, which lays the foundation for the flexible unfolding and retraction of the scissor mechanism.

[0057] Please see Figure 4 , Figure 5 and Figure 6 A sector gear 3211 is fixedly installed on the side of the pallet transmission main rod 321 away from the pallet transmission auxiliary rod 322. The rotation center of the sector gear 3211 is located on the axis of the second pin 2111. The sector gear 3211 rotates synchronously with the pallet transmission main rod 321.

[0058] The sector gear 3211 is rigidly fixed on the outside of the pallet drive main rod 321, making full use of the space outside the pallet drive main rod 321 and avoiding motion interference with the internal pallet drive auxiliary rod 322. The rotation angle of the sector gear 3211 and the swing angle of the pallet drive main rod 321 are always completely consistent. The sector gear 3211 can be used as the drive input point, which can directly drive the pallet drive main rod 321 to swing, providing power for the entire scissor mechanism 300.

[0059] When the heating tray 130 closes the heating chamber, the operation of the tray transmission mechanism 140 is as follows:

[0060] Driven by the sector gear 3211, it rotates upward about the second pin 2111, causing the pallet transmission main rod 321 to also rotate upward about the second pin 2111. The pallet transmission auxiliary rod 322 is forced to rotate downward about the third pin 2211. At the same time, the first pin 2222 moves along the elongated hole 2221 towards the second hinge seat 221, and the sliding seat 212 slides towards the first hinge seat 211. The angle between the pallet transmission main rod 321 and the pallet transmission auxiliary rod 322 in the same scissor unit 320 in the horizontal direction increases, while the angle between the pallet transmission main rod 321 and the pallet transmission auxiliary rod 322 in the vertical direction decreases. The distance between the pallet transmission base plate 210 and the pallet transmission base plate 220 increases. The entire scissor lift mechanism 300 is open; since the pallet drive base plate 210 is fixed on the inner bottom of the heating box 110, the increased distance between the pallet drive base plate 210 and the pallet drive base plate 220 results in the pallet drive base plate 220 rising, and the rising pallet drive base plate 220 then drives the heating pallet 130 to rise until the heating pallet 130 closes the heating chamber.

[0061] When the heating tray 130 opens the heating chamber, the operation of the tray transmission mechanism 140 is as follows:

[0062] Driven by the sector gear 3211, it rotates downwards around the second pin 2111, causing the pallet drive main rod 321 to also rotate downwards around the second pin 2111. The pallet drive auxiliary rod 322 is forced to rotate upwards around the third pin 2211. At the same time, the first pin 2222 moves away from the second hinge seat 221 along the elongated hole 2221, and the sliding seat 212 slides away from the first hinge seat 211. The angle between the pallet drive main rod 321 and the pallet drive auxiliary rod 322 in the same scissor unit 320 in the horizontal direction becomes smaller, while the angle between the pallet drive main rod 321 and the pallet drive auxiliary rod 322 in the vertical direction becomes larger, and the distance between the pallet drive base plate 210 and the pallet drive base plate 220 becomes smaller. The entire scissor lift mechanism 300 is closed; since the pallet drive base plate 210 is fixed on the inner bottom of the heating box 110, the reduced distance between the pallet drive base plate 210 and the pallet drive base plate 220 is manifested as the lowering movement of the pallet drive base plate 220. The lowered pallet drive base plate 220 then drives the heating pallet 130 to lower until the heating pallet 130 is lowered to the initial position, and the heating chamber is also fully opened.

[0063] Figure 7 This diagram illustrates the connection structure between the pallet drive main rod and the slot plate in an embodiment of this utility model. Please refer to the diagram for further details. Figure 5 A rotating wheel 2223 is provided at the upper end of the pallet transmission main rod 321. The rotating wheel 2223 is rotatably connected to the first pin 2222, and the circumferential surface of the rotating wheel 2223 is tangent to the lower surface of the pallet transmission base plate 220. The rotating wheel 2223 can provide a certain support for the pallet transmission base plate 220, thereby reducing the working pressure between the first pin 2222 and the slot plate 222, which is beneficial to improving the smoothness of the movement of the first pin 2222 in the elongated hole 2221.

[0064] In some specific embodiments, please refer to Figure 5 The heating tray 130 and the tray transmission base plate 220 are connected by an elastic buffer 131. When the heating tray 130 rises to touch the heating inner liner 120, the elastic buffer 131 provides a cushioning effect, preventing the heating tray 130 from impacting the heating inner liner 120. Specifically, the elastic buffer 131 is a spring or rubber, which provides good cushioning.

[0065] In some specific embodiments, please refer to Figure 3The pallet drive mechanism 150 includes a pallet drive motor (not shown in the figure) and a pallet drive shaft 151. The pallet drive motor is fixedly mounted on the side of the heating box 110, and the pallet drive shaft 151 is rotatably mounted on the bottom surface of the heating box 110. A pallet drive main gear 1511 is fixedly mounted at one end of the pallet drive shaft 151, and two pallet drive secondary gears 1512 are fixedly mounted on the main body of the pallet drive shaft 151. The output end of the pallet drive motor meshes with the pallet drive main gear 1511, and the two pallet drive secondary gears 1512 mesh with the sector gear 3211 in a one-to-one correspondence. The pallet drive motor, through the two pallet drive secondary gears 1512 on the pallet drive shaft 151, can drive the two symmetrical scissor lift units 320 to maintain completely synchronized movement, which ensures that the heating pallet 130 rises or falls smoothly and does not tilt.

[0066] The operation process of the pallet drive mechanism 150 is as follows:

[0067] The pallet drive motor rotates forward, driving the pallet drive main gear 1511 to rotate. The rotating pallet drive main gear 1511 drives the pallet drive shaft 151 to rotate. The rotating pallet drive shaft 151 drives the pallet drive secondary gear 1512 to rotate. The rotating pallet drive secondary gear 1512 drives the sector gear 3211 to rotate upward.

[0068] The pallet drive motor reverses, driving the pallet drive main gear 1511 to rotate. The rotating pallet drive main gear 1511 drives the pallet drive shaft 151 to rotate. The rotating pallet drive shaft 151 drives the pallet drive secondary gear 1512 to rotate. The rotating pallet drive secondary gear 1512 drives the sector gear 3211 to rotate downward.

[0069] In some specific embodiments, please refer to Figure 1 and Figure 2 The heating box 110 has an inlet window 111 on its side and an outlet window 112 on its front. An outlet channel 113 is connected to the outside of the outlet window 112. An outlet detection photoelectric eye is installed in the outlet channel 113 to detect whether food is passing through the outlet channel 113, so as to facilitate feedback control of the operation of related components.

[0070] For details, please refer to Figure 1 and Figure 2The movement path of the heating tray 130 has an initial position and an end position. The heating tray 130 at the initial position is flush with the lower edge of the inlet window 111 and the lower edge of the outlet window 112, ensuring that food can smoothly enter from the inlet window 111 and smoothly exit from the outlet window 112. The heating tray 130 at the end position is attached to the lower surface of the heating inner liner 120, ensuring that food can completely enter the heating chamber and ensuring the sealing of the heating chamber.

[0071] In some specific embodiments, please refer to Figure 1 and Figure 2 The dispensing mechanism 12 includes a dispensing push plate 410 disposed on the inner side of the back of the heating box 110 and a push plate driving mechanism 420 disposed on the outer side of the back of the heating box 110. The dispensing push plate 410 is located above the initial position of the tray and below the end position of the tray. The dispensing push plate 410 is driven by the push plate driving mechanism 420 to move closer to or further away from the dispensing window 112. Driven by the push plate driving mechanism 420, the dispensing push plate 410 can push the heated food out of the dispensing window 112, making it convenient for consumers to take directly without having to put their hands into the heating box 110. This improves convenience and effectively enhances the consumer's user experience.

[0072] Figure 8 This diagram shows a three-dimensional structural schematic of the shipping mechanism in an embodiment of the present invention. Please refer to it for further details. Figure 3The pusher plate drive mechanism 420 includes a pusher plate bracket 421 fixedly mounted on the outer side of the back of the heating box 110, a pusher plate drive motor 422 fixedly mounted on the pusher plate bracket 421, a pusher plate guide rail 423 fixedly mounted on the pusher plate bracket 421, and a pusher plate rack 424 movably mounted in the pusher plate guide rail 423. One end of the pusher plate rack 424 is fixedly connected to the discharging pusher plate 410, and the pusher plate rack 424 meshes with the output end of the pusher plate drive motor 422. The pusher plate rack 424 is driven by the pusher plate drive motor 422 to extend into or retract from the heating box 110; the pusher plate rack 424 is located away from the discharging pusher plate 410. A rack and pinion light shield 4241 is fixedly provided on the side of the end. A front limit photoelectric sensor 4211 is provided at the end of the push plate bracket 421 near the heating box 110, and a rear limit photoelectric sensor 4212 is provided at the end of the push plate bracket 421 away from the heating box 110. The movement path of the rack and pinion light shield 4241 passes through the detection window of the front limit photoelectric sensor 4211 and the detection window of the rear limit photoelectric sensor 4212. A push plate guide sleeve 431 is also fixedly provided on the outer side of the back of the heating box 110. A push plate guide shaft 432 is fixedly connected to the back of the discharge push plate 410. The push plate guide shaft 432 is movably inserted into the push plate guide sleeve 431.

[0073] The push plate drive mechanism 420 uses a push plate rack 424 and a push plate drive motor 422 for meshing transmission, resulting in high control precision. Moreover, the push plate drive mechanism 420 ensures the rigidity and stability of the delivery push plate 410 during movement through the dual guide design of the push plate guide rail 423 and the push plate guide bushing 431. Furthermore, the push plate bracket 421 is equipped with front and rear limit position photoelectric sensors to achieve front and rear limit protection during the movement of the push plate rack 424.

[0074] The operation process of the pusher drive mechanism 420 is as follows:

[0075] The pusher drive motor 422 rotates forward, driving the pusher rack 424 to extend into the heating chamber 110, thus moving the delivery pusher 410 forward and pushing the heated food on the heating tray 130 out of the heating chamber 110. The pusher drive motor 422 rotates in reverse, driving the pusher rack 424 out of the heating chamber 110 and moving the delivery pusher 410 backward until it returns to its initial position. During the process of the pusher rack 424 extending into the heating chamber 110, when the rack light-shielding plate 4241 moves to the detection window of the front limit photoelectric sensor 4211, the pusher drive motor 422 stops rotating forward. During the process of the pusher rack 424 exiting the heating chamber 110, when the rack light-shielding plate 4241 moves to the detection window of the rear limit photoelectric sensor 4212, the pusher drive motor 422 stops rotating in reverse.

[0076] In some specific embodiments, please refer to Figure 1 or Figure 2 A microwave generator 160 is installed on the outer top of the heating box 110; Figure 9 This diagram shows the top structure of the heated inner liner in an embodiment of the present invention. A microwave window 121 is provided on the top of the heated inner liner 120; the output terminal of the microwave generator 160 is connected to the microwave window 121. (See also...) Figure 1 or Figure 2 The microwave generator 160 includes a waveguide 161 and a magnetron 162 with a heat sink. The output end of the magnetron 162 is connected to the input end of the waveguide 161, and the output end of the waveguide 161 leads to the microwave window 121. Figure 10 The diagram shows a perspective view of the heated shipping device in an embodiment of the present invention. A microwave stirring plate 171 is disposed within the heated inner liner 120, and the microwave stirring plate 171 is located directly below the microwave window 121. (See also...) Figure 1 or Figure 2 A turntable motor 172 is installed outside the waveguide 161; please refer to [link / reference]. Figure 10 A drive shaft 173 is rotatably disposed in the waveguide 161. One end of the drive shaft 173 is fixedly connected to the microwave stirring plate 171, and the other end of the drive shaft 173 is engaged with the output end of the turntable motor 172.

[0077] The magnetron 162 can generate microwaves, the waveguide 161 can efficiently conduct microwaves to the heating inner liner 120, and the radiator can dissipate heat from the magnetron 162; the microwave stirring plate 171 is driven by the turntable motor 172 to rotate, which can improve the uniformity of the microwave field and make the microwaves more evenly distributed in the food, thereby ensuring that the food can be heated more evenly.

[0078] Figure 11 The diagram shows the bottom structure of the heating inner liner in this embodiment of the present invention. A heating tube 122 is provided on the inner wall of the heating inner liner 120. The heating tube 122 can be used in conjunction with the microwave generator 160 to bake foods such as hamburgers, pizzas, and bread. The heating efficiency is high, the moisture loss is small, and the food tastes good. A microwave shielding strip 123 is provided around the heating cavity at the bottom of the heating inner liner 120, which can effectively suppress microwave leakage during microwave heating.

[0079] In some specific embodiments, please refer to Figure 1 or Figure 2 The heating box 110 is also equipped with a filter 180 on its outer top; please refer to Figure 9The top of the heating inner liner 120 is also provided with a water vapor venting window 124; the input end of the filter 180 is connected to the water vapor venting window 124, and the filter 180 can prevent external dust from entering the heating inner liner 120 through the water vapor venting window 124; please refer to Figure 9 A temperature probe 125 is also provided on the top of the heating inner liner 120. The temperature probe 125 extends into the heating cavity and can effectively monitor the temperature in the heating inner liner 120.

[0080] In the heating and dispensing device 10 of this utility model, the heating tray 130, driven by the tray drive mechanism 150 based on the tray transmission mechanism 140, can rise to close the opening of the heating inner liner 120 and send the food into the heating chamber. The microwave generator 160 and the heating tube 122 can heat the food in the heating chamber. After the food is heated, the heating tray 130, driven by the tray drive mechanism 150 based on the tray transmission mechanism 140, can descend to the initial position. At this time, the dispensing pusher 410, driven by the pusher drive mechanism 420, can push the heated food out of the dispensing window 112, making it convenient for consumers to take directly without having to put their hands into the heating box 110. This provides good convenience and effectively improves the user experience.

[0081] Furthermore, in the heating and unloading device 10 of this utility model, the scissor mechanism 300 is driven by the pallet drive mechanism 150 to open or close, the pallet transmission base plate 220 is driven by the scissor mechanism 300 to rise or fall, and the heating pallet 130 is driven by the pallet transmission base plate 220 to close or open the heating chamber. The heating and unloading device 10 of this utility model avoids the use of belts and lead screws, and instead uses a pallet transmission mechanism 140 with the scissor mechanism 300 as the core to cooperate with the pallet drive mechanism 150 to realize the lifting and lowering movement of the heating pallet 130, thereby realizing the closing or opening of the heating chamber. Such a pallet transmission mechanism 140 has better reliability and higher stability, ensuring that the heating pallet 130 can run smoothly without tilting or jamming, thereby accurately closing or opening the heating chamber and improving the availability of the equipment.

[0082] Figure 12 This diagram shows a three-dimensional structural schematic of the automatic food vending machine according to an embodiment of the present invention. Figure 13 This diagram shows the internal structure of the food vending machine in an embodiment of the present invention. Figure 14 A schematic diagram of the internal structure of the back of the food vending machine in an embodiment of this utility model is shown.

[0083] This utility model also provides an automatic food vending machine, which includes a refrigerated cabinet 1 and a heated cabinet 2. The refrigerated cabinet 1 is equipped with a shelf 20 and a conveying mechanism 30. The heated cabinet 2 is equipped with at least one heated dispensing device 10. The shelf 20 conveys food to the heated dispensing device 10 via the conveying mechanism 30. The shelf 20 is existing and has multiple aisles, each capable of actively dispensing items. The conveying mechanism 30 is also existing and can transport food from the shelf 20 to the heated dispensing device 10.

[0084] The automatic food vending machine of this utility model adopts a specially designed heating and dispensing device 10, which can not only automatically output heated food to consumers, but also has better reliability and higher stability, thus improving the availability of the equipment.

[0085] In some specific embodiments, please refer to Figure 14 The heating cabinet 2 is equipped with two heating and dispensing devices 10, which are arranged vertically and horizontally to improve the efficiency of heating food and selling food in the automatic food vending machine.

[0086] In some specific embodiments, please refer to Figure 13 and Figure 14 A partition plate 40 is provided between the refrigerator 1 and the heating cabinet 2. A conveying window 41 is provided on the partition plate 40. The conveying mechanism 30 conveys items to the heating and dispensing device 10 through the conveying window 41. An isolation mechanism 500 is provided on the partition plate 40 and is located in the heating cabinet 2.

[0087] Figure 15 A three-dimensional structural schematic diagram of the isolation mechanism in an embodiment of the present invention is shown. The isolation mechanism 500 includes an isolation door frame 510 fixedly mounted on the isolation plate 40, an electric push rod 520 horizontally fixedly mounted on the isolation door frame 510, an isolation guide rail 530 horizontally fixedly mounted on the isolation door frame 510, an isolation slide block 540 slidably mounted on the isolation guide rail 530, and an isolation door panel 550 horizontally movable in the isolation door frame 510. One side of the isolation slide block 540 is fixedly connected to the output end of the electric push rod 520, and the other side of the isolation slide block 540 is fixedly connected to the isolation door panel 550. The upper and lower sides of the isolation door panel 550 contact the isolation door frame 510 based on rollers 551. The isolation door panel 550 is driven by the electric push rod 520 to close or open the conveying window 41.

[0088] The isolation door 550 normally closes the conveying window 41 and only opens it briefly when conveying items. This helps to protect the low-temperature environment of the refrigerator 1 and reduce the loss of cold air in the refrigerator 1.

[0089] In some specific embodiments, please refer to Figure 12 and Figure 13 The front of the heating cabinet 2 is provided with a cabinet panel 50, and a retrieval window 51 is provided on the cabinet panel 50. The retrieval window 51 is connected to the delivery channel 113.

[0090] Figure 16 This diagram shows a three-dimensional structural schematic of the back of the cabinet panel in an embodiment of the present invention. Figure 17 A three-dimensional structural schematic diagram of the closing mechanism in an embodiment of this utility model is shown; a closing mechanism 600 is provided on the back of the cabinet panel 50. The closing mechanism 600 includes a closing door frame 610 fixedly mounted on the cabinet panel 50, a closing motor 620 fixedly mounted on the upper side of the closing door frame 610, a coil 630 fixedly mounted on the output end of the closing motor 620, a closing guide rail 640 vertically fixedly mounted on the closing door frame 610, and a closing door panel 650 vertically movable in the closing guide rail 640. A traction rope 631 is wound on the coil 630. One end of the traction rope 631 is fixedly connected to the coil 630, and the other end of the traction rope 631 is fixedly connected to the upper side of the closed door panel 650; a counterweight 651 is fixedly installed on the closed door panel 650; the coil 630 is driven by the closed motor 620 to wind up or release the traction rope 631, and the closed door panel 650 is driven by the wind-up traction rope 631 to rise vertically to open the picking window 51; when the traction rope 631 is released, the closed door panel 650 is driven by the gravity of the counterweight 651 to descend vertically to close the picking window 51.

[0091] The closing mechanism 600 uses the winding of the traction rope 631 to raise the closing door panel 650 and uses the gravity of the counterweight 651 to lower the closing door panel 650, which can prevent the closing door panel 650 from pinching hands and has good safety.

[0092] Specifically, the traction rope 631 can be a steel wire rope or a nylon rope, which is strong and durable; the counterweight 651 can be an iron plate or a stainless steel plate, which is heavy enough; and the closed door panel 650 can be a transparent acrylic panel or a tempered glass panel, which allows consumers to see the interior.

[0093] For further details, please refer to Figure 12 and Figure 13 The pickup window 51 has a pickup platform 52 at the lower edge of its front, which helps to prevent items from falling.

[0094] This utility model's automatic food vending machine can sell heatable foods such as boxed meals, hamburgers, sandwiches, and steamed buns.

[0095] The above provides a detailed description of the heating and dispensing device 10 and the automatic food vending machine provided by the embodiments of this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A heated dispensing device, comprising a heating mechanism and a dispensing mechanism, wherein food within the heating mechanism is discharged by the dispensing mechanism, characterized in that, The heating mechanism includes a heating box, a heating inner liner disposed at the top of the heating box, a heating tray disposed below the heating inner liner, a tray transmission mechanism disposed at the bottom of the heating box, and a tray drive mechanism disposed at the bottom of the heating box. The heating inner liner has a downward-opening heating cavity, and the heating tray is driven by the tray drive mechanism to close or open the heating cavity based on the tray transmission mechanism. The pallet transmission mechanism includes, from bottom to top, a pallet transmission base plate, a scissor mechanism, and a pallet transmission base plate connected in sequence. The pallet transmission base plate is fixedly connected to the inner bottom of the heating box. The heating pallet is mounted on the pallet transmission base plate. The scissor mechanism is opened or closed by the pallet driving mechanism. The pallet transmission base plate is raised or lowered by the scissor mechanism.

2. The heating and dispensing device as described in claim 1, characterized in that, The scissor lift mechanism includes a connecting rod and scissor lift units symmetrically arranged at both ends of the connecting rod. Each scissor lift unit includes a pallet drive main rod and a pallet drive secondary rod arranged in a cross configuration. Both the pallet drive main rod and the pallet drive secondary rod are rotatably connected to the connecting rod. The connecting rod passes through the intersection center of the pallet drive main rod and the pallet drive secondary rod. The pallet drive main rod is located on the side away from the geometric center of the connecting rod, and the pallet drive secondary rod is located on the side closer to the geometric center of the connecting rod. A first hinge seat is fixedly provided on one side of the upper surface of the pallet transmission base plate, and a sliding seat is slidably provided on the other side of the upper surface of the pallet transmission base plate. The sliding seat slides in a direction close to or away from the first hinge seat. A second hinge seat is fixedly provided on one side of the lower surface of the pallet transmission base plate, and a groove plate is fixedly provided on the other side of the lower surface of the pallet transmission base plate; the second hinge seat is located above the first hinge seat, and the groove plate is located above the sliding seat; an elongated hole is provided in the groove plate, and a first pin is movably provided in the elongated hole, and the first pin moves along the elongated hole toward or away from the second hinge seat. The upper end of the pallet drive main rod is hinged to the first pin, and the lower end of the pallet drive main rod is hinged to the first hinge seat based on the second pin; the upper end of the pallet drive auxiliary rod is hinged to the second hinge seat based on the third pin, and the lower end of the pallet drive auxiliary rod is hinged to the sliding seat based on the fourth pin. A sector gear is fixedly installed on the side of the pallet drive main rod away from the pallet drive auxiliary rod. The rotation center of the sector gear is located on the axis of the second pin shaft, and the sector gear rotates synchronously with the pallet drive main rod.

3. The heating and unloading device as described in claim 2, characterized in that, The upper end of the pallet transmission main rod is provided with a rotating wheel, which is rotatably connected to the first pin shaft, and the circumferential surface of the rotating wheel is tangent to the lower surface of the pallet transmission base plate.

4. The heated dispensing package of claim 2, wherein the heating element is a wire. The pallet drive mechanism includes a pallet drive motor and a pallet drive shaft. The pallet drive motor is fixedly mounted on the side of the heating box, and the pallet drive shaft is rotatably mounted on the bottom surface of the heating box. A pallet drive main gear is fixedly mounted at one end of the pallet drive shaft, and two pallet drive auxiliary gears are fixedly mounted on the main body of the pallet drive shaft. The output end of the pallet drive motor meshes with the pallet drive main gear, and the two pallet drive auxiliary gears mesh with the sector gear in a one-to-one correspondence.

5. The heated shipping device as described in claim 1, characterized in that, The heating plate and the plate transmission base plate are connected based on an elastic buffer.

6. The heated dispensing package of claim 1, wherein The heating box has an inlet window on its side and an outlet window on its front. An outlet channel is connected to the outside of the outlet window, and an outlet detection photoelectric eye is installed in the outlet channel. The movement path of the heating tray has an initial position and an end position. The heating tray at the initial position is flush with the lower edge of the inlet window and the lower edge of the outlet window, and the heating tray at the end position is attached to the lower surface of the heating liner.

7. The heated dispensing package of claim 6, wherein the heating element is a wire. The dispensing mechanism includes a dispensing push plate disposed on the inner side of the back of the heating box and a push plate driving mechanism disposed on the outer side of the back of the heating box. The dispensing push plate is located above the initial position of the pallet and below the end position of the pallet. The dispensing push plate is driven by the push plate driving mechanism to move closer to or away from the dispensing window. The push plate drive mechanism includes a push plate bracket fixedly mounted on the outer side of the back of the heating box, a push plate drive motor fixedly mounted on the push plate bracket, a push plate guide rail fixedly mounted on the push plate bracket, and a push plate rack movably mounted in the push plate guide rail. One end of the push plate rack is fixedly connected to the delivery push plate, and the push plate rack meshes with the output end of the push plate drive motor. The push plate rack is driven by the push plate drive motor to extend into or retract from the heating box. A rack light-shielding plate is fixedly provided on the side of the pusher rack away from the delivery pusher. A front limit photoelectric sensor is provided at the end of the pusher bracket near the heating box, and a rear limit photoelectric sensor is provided at the end of the pusher bracket away from the heating box. The movement path of the rack light-shielding plate passes through the detection window of the front limit photoelectric sensor and the detection window of the rear limit photoelectric sensor. A push plate guide sleeve is also fixedly installed on the outer side of the back of the heating box. A push plate guide shaft is fixedly connected to the back of the discharge push plate, and the push plate guide shaft is movably inserted into the push plate guide sleeve.

8. The heated dispensing package of claim 1, wherein, A microwave generator is installed on the top of the heating box, and a microwave window is provided on the top of the heating inner liner. The output end of the microwave generator is connected to the microwave window. The microwave generator includes a waveguide and a magnetron with a heat sink. The output end of the magnetron is connected to the input end of the waveguide, and the output end of the waveguide leads to the microwave window. A microwave stirring plate is provided in the heating inner liner, and the microwave stirring plate is located directly below the microwave window; a turntable motor is provided outside the waveguide, and a drive shaft is rotatably provided in the waveguide. One end of the drive shaft is fixedly connected to the microwave stirring plate, and the other end of the drive shaft is engaged with the output end of the turntable motor.

9. The heating and unloading device as described in claim 1, characterized in that, Heating tubes are provided on the inner wall of the heating liner, and microwave shielding strips are provided around the bottom of the heating liner along the perimeter of the heating cavity.

10. An automatic food vending machine, characterized in that, The food vending machine includes a refrigerated cabinet and a heated cabinet. The refrigerated cabinet is equipped with shelves and a conveying mechanism. The heated cabinet is equipped with at least one heated dispensing device as described in any one of claims 1 to 9. The shelves convey food to the heated dispensing device based on the conveying mechanism.

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