Multifunctional heating cabinet and vending machine

Abstract

The invention discloses a multifunctional heating cabinet and a vending machine. A vertical hinged door is arranged on the front face of the multifunctional heating cabinet, and a sliding door assembly is arranged on one side face. The vending machine comprises a cabinet freezer, the multifunctional heating cabinet and automatic conveying equipment, a vertical hinged door of the heating cabinet is arranged on the front face of the vending machine, and an opening of a sliding door faces the automatic conveying equipment of the vending machine. The automatic meal heating device adapts to the automatic meal heating requirement, can automatically detect the position, automatically opens the side sliding door and adapts to the automation requirement.

Description

Technical Field

[0001] The invention relates to a multifunctional heating cabinet and an automatic vending machine. Background Art

[0002] The vending machine includes a freezer, a heating cabinet and an automatic conveying device. The heating cabinet is located on one side of the freezer. The automatic conveying device conveys food from the freezer to the heating cabinet. The automatic conveying device is mostly a robotic arm. Most of the existing heating cabinets are ordinary household versions. The main function is to heat food in a micro steaming and baking form. It comes with a swing door for taking food in and out. The disadvantage is that it is not automated enough and cannot be applied to fully automated heating equipment. Summary of the invention

[0003] In view of this, the present invention proposes a multifunctional heating cabinet and a vending machine, which can automatically detect the placement of the lunch box and automatically open the side door when the requirements are met, so as to facilitate other automated equipment to transport food from the side to the heating cabinet.

[0004] The present invention provides the following technical solutions:

[0005] A multifunctional heating cabinet has a swing door (3) on the front and a sliding door assembly (23) on one side of the multifunctional heating cabinet.

[0006] Optionally, the sliding door assembly (23) comprises a sliding door (4), a motor (6), a synchronous belt (7), a synchronous belt gear (9), a slide rail (8), a slider (5), and a guide rail, wherein: the motor (6), the synchronous belt gear (9), the guide rail, and the slide rail (8) are fixed on the heating cabinet (10); a synchronous belt gear (9) is provided on the output shaft of the motor (6), and the synchronous belt (7) is connected to the synchronous belt gear (9); the synchronous belt (7) is parallel to the sliding door (4) and the slide rail (8); one end of the slide rail (5) is fixed to the synchronous belt (7), and the slide rail (5) slides along the slide rail (8); the slide rail (5) is provided with a guide groove (13) perpendicular to the slide rail (8); and the sliding door (4) is located in the guide rail.

[0007] Optionally, the guide rail comprises an upper guide rail and a lower guide rail (14), the upper guide rail comprises a front guide rail (1) and a rear guide rail (2), the front ends of the front guide rail (1) and the rear guide rail (2) are bent toward the center of the heating cabinet to form a bent portion (27), and the front end and middle portion of the lower guide rail (14) are respectively provided with bent portions (27); a front short column (121) is provided at the front end of the upper edge of the sliding door (4) in the door closing direction, and the front short column (121) slides in the front guide rail (1); when the sliding door (4) slides to the front end in the door closing direction, the front short column (121) is located at the front end of the front guide rail (1) in the door closing direction.

[0008] Optionally, a limiting structure is provided at the rear end of the sliding door (4) in the closing direction of the cabinet door, and the limiting structure is located in the guide groove (13).

[0009] Optionally, the limiting structure is a rear short column (122) arranged at the rear end of the cabinet door closing direction of the upper edge of the sliding door (4), the rear short column (122) extending out of the rear guide rail (2), and the end portion is located in the guide groove (13); when the sliding door (4) slides to the front end in the cabinet door closing direction, the rear short column (122) is located at the front end of the cabinet door closing direction of the rear guide rail (2), and is located on the side of the guide groove (13) facing the center direction of the heating cabinet.

[0010] Optionally, two rollers (11) are provided on the lower edge of the sliding door (4).

[0011] Optionally, the slider (5) is L-shaped and consists of a first section (51) and a second section (52) which are perpendicular to each other, wherein the first section (51) is fixed on the synchronous belt (7) and the second section (52) is located on the upper guide rail; and the guide groove (13) is located at the rear end of the second section (52) in the cabinet door closing direction.

[0012] Optionally, a switch and a push pin (18) are provided on the inner wall of the heating cabinet, and a push block (16) is provided on the edge of the tray of the heating cabinet, wherein: the push pin (18) is connected to the switch; when the tray is located in the heating cabinet, the push block (16) presses against the push pin (18) so that the push pin (18) is compressed, thereby triggering the switch.

[0013] Optionally, two side walls adjacent to the swing door (3) are provided with a beam switch (20).

[0014] An automatic vending machine comprises a freezing cabinet (24) and a heating cabinet (26), wherein the heating cabinet (26) is the multifunctional heating cabinet described in the present invention, the swing door (3) of the heating cabinet (26) is arranged at the front of the automatic vending machine, and the opening of the sliding door assembly (23) faces the freezing cabinet (24).

[0015] The front and side surfaces of the multifunctional heating cabinet of the present invention are respectively provided with a swing door and a sliding door assembly. The swing door is provided to facilitate users to take food. The sliding door is opened and closed under the drive of a motor, which can meet the needs of other automated equipment to place and take food, and facilitates the transmission of food between other automated equipment such as a robotic arm and the heating cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] For purposes of illustration and not limitation, the present invention will now be described in terms of preferred embodiments thereof, with particular reference to the accompanying drawings, in which:

[0017] Figure 1 is a top view of a multifunctional heating cabinet in an embodiment of the present invention;

[0018] Figure 2 is a three-dimensional diagram of a multifunctional heating cabinet in an embodiment of the present invention;

[0019] Figure 3 yes Figure 2 A magnified view of the sliding door area;

[0020] Figure 4 is a front view of a multifunctional heating cabinet in an embodiment of the present invention with a sliding door opened;

[0021] Figure 5 is a front view of a multifunctional heating cabinet in an embodiment of the present invention with the sliding door in a closed state;

[0022] Figure 6 is a three-dimensional diagram of a multifunctional heating cabinet in an embodiment of the present invention with its swing door opened;

[0023] Figure 7 yes Figure 6 The corresponding cross-sectional view;

[0024] Figure 8 yes Figure 7 A partial enlarged view of

[0025] Fig. 9 It is a schematic diagram of the arrangement of the through-beam sensor under a viewing angle;

[0026] Fig.10 This is a schematic diagram of the arrangement of the through-beam sensor from another perspective;

[0027] Fig.11 This is a schematic diagram of the arrangement of the through-beam sensor;

[0028] Fig.12 It is a schematic diagram of the structure of the automatic vending machine in the embodiment of the present invention.

[0029] In the figure: 1. front guide rail; 2. rear guide rail; 3. swing door; 4. sliding door; 5. slider; 51. first section; 52. second section; 6. motor; 7. synchronous belt; 8. slide rail; 9. synchronous belt gear; 10. heating cabinet; 11. roller; 121. front short column; 122. rear short column; 13. guide groove; 14. lower guide rail; 16. ejector block; 17. tray; 18. ejector pin; 19. travel switch; 20. through-beam switch; 21. freezer inner door; 22. lunch box; 23. sliding door assembly; 24. freezer; 25. robotic arm; 26. heating cabinet; 27. bending part. DETAILED DESCRIPTION

[0030] An embodiment of the present invention discloses a multifunctional heating cabinet for use in a vending machine. The heating cabinet of the present invention refers to a heating device such as a steam oven or a microwave oven. The multifunctional heating cabinet has microwave function and steaming and baking function, and an automatic sliding door is provided on the side of the device to connect with other automated devices for placing and taking meals. The other door is a swing door for users to take meals. In the embodiment of the present invention, the swing door faces the user and is set to the front.

[0031] See also Figure 1 , Figure 2 , Figure 3 , Figure 1 is a top view of a multifunctional heating cabinet in an embodiment of the present invention, Figure 2 is a three-dimensional diagram of a multifunctional heating cabinet in an embodiment of the present invention; Figure 3 yes Figure 2 A partial enlarged view; the multifunctional heating cabinet includes a swing door 3 and a sliding door 4, and the sliding door 4 can slide on the heating cabinet body 10; the sliding door assembly 23 includes a sliding door 4, a motor 6, a synchronous belt 7, a synchronous belt gear 9, a slide rail 8, a slider 5, a front guide rail 1, a rear guide rail 2, and a lower guide rail 14, wherein the motor 6, the synchronous belt gear 9, the front guide rail 1, the rear guide rail 2, the lower guide rail 14, and the slide rail 8 are fixed on the heating cabinet body 10; here, forward is the door closing direction, and backward is the door opening direction.

[0032] The motor 6 is provided with a synchronous belt gear 9, the slider 5 slides linearly on the slide rail 8, one end of the slider 5 is fixed to the synchronous belt 7, the slider 5 includes a first section 51 and a second section 52 which are perpendicular to each other, the second section 52 is parallel to the sliding direction of the sliding door 4; the second section 52 is provided with a guide groove 13 which is perpendicular to the sliding direction, and the guide groove 13 is sleeved on the upper end of the sliding door 4.

[0033] When the motor 6 is running, the synchronous belt 7 rotates and drives the slider 5 to slide linearly on the slide rail 8. At this time, the sliding door 4 is moved by the slider 5, and the sliding door 4 slides along the shape of the front guide rail 1 and the rear guide rail 2. At the same time, the sliding door 4 and the guide groove 13 also move relative to each other. When the sliding door 4 is closed, the sliding door 4 will follow the shape of the front guide rail 1 and the rear guide rail 2 and snap onto the side wall of the steam oven. At this time, the sliding door 4 and the side wall of the heating cabinet form a seal. When the sliding door 4 is opened, the sliding door 4 moves along the front guide rail 1 and the rear guide rail 2, and a gap is created between the sliding door 4 and the side wall of the heating cabinet and the sliding door slides away.

[0034] To achieve the sliding of the sliding door 4 along the shape of the front rail 1 and the rear rail 2, the embodiment of the present invention adopts the following structure: the lower part of the sliding door 4 rolls on the lower rail 14 through two rollers 11. In this embodiment, the diameter of the roller 11 can be selected as 30 mm, and of course other diameters can be selected. The selection of the diameter of the roller 11 mainly considers the space allowed by the sliding door system to put the roller 11 down. The front end of the upper edge of the sliding door 4 in the door closing direction ( Figure 1 The left end of the middle perspective) is provided with a front short column 121, and the other end of the upper edge of the sliding door 4 ( Figure 1 The right end of the middle perspective) is provided with a rear short column 122, and the front short column 121 slides in the front guide rail 1; the rear short column 122 extends out of the rear guide rail 2, and the end is located in the guide groove 13; the front end of the front guide rail 1 and the rear guide rail 2 ( Figure 1 The left end of the middle viewing angle is bent toward the center of the heating cabinet to form a bent portion 27, and the lower guide rail 14 is provided with the same bends at the front end and the middle portion. When the sliding door 4 slides to the front end, the front short column 121 is located at the front end of the front guide rail 1, and the rear short column 122 is located at the front end of the rear guide rail 2, and is located on the side of the guide groove 13 facing the center direction of the heating cabinet.

[0035] The synchronous belt 7 is mainly used for transmission. Its size should meet the requirements of the use space and its material should have good heat resistance. The width of the synchronous belt can be selected to be 8mm and its length should meet the travel requirements of the cabinet door switch.

[0036] See also Figure 4 , Figure 4 is a front view of a multifunctional heating cabinet in an embodiment of the present invention with a sliding door opened; Figure 4 In the figure, the sliding door 4 is located on the right side and is in an open state, and the front short column 121 and the rear short column 122 on the upper edge of the sliding door 4 are correspondingly located on the right side. Figure 5 is a front view of a multifunctional heating cabinet in an embodiment of the present invention with the sliding door in a closed state; Figure 5 In the embodiment, the sliding door 4 slides to the left and is in a closed state, and the front short column 121 and the rear short column 122 move to the left accordingly.

[0037] See also Figures 6 to 8 , Figure 6 is a three-dimensional diagram of a multifunctional heating cabinet in an embodiment of the present invention with its swing door opened; Figure 7 yes Figure 6 The corresponding cross-sectional view; Figure 8 yes Figure 7 A partial enlarged view; there are two layers of trays 17 in the heating cabinet, each layer of trays 17 can hold two lunch boxes, and a switch is provided on the side wall of the heating cabinet. The tray 17 is placed in the heating cabinet, and the tray 17 presses the switch on the side wall. At this time, the microwave steaming and baking device can determine that the tray exists and the device status is normal, and feed back the information to other automated equipment. At this time, other automated equipment will start to place food in the heating cabinet.

[0038] The switch on the side wall of the heating cabinet can be a travel switch 19 built into the side wall of the heating cabinet. A pin 18 is provided on the side wall and connected to the travel switch 19. The pin 18 can be pressed down and can pop out when the external force is removed. The travel switch 19 can select model DZ-10GW22-1B. When the tray 17 is placed in the heating cabinet and the pin 18 is compressed, the travel switch 19 is triggered, and the travel switch 19 sends a trigger signal to the controller, and then the controller can determine whether the tray 17 is normally stored in the heating cabinet; a top block 16 is fixed on the edge of the tray 17. When the tray 17 is placed, the top block 16 presses against the pin 18, and the pin 18 is compressed, thereby triggering the travel switch 19. At this time, the controller determines that the tray 17 has been placed and can work normally.

[0039] See also Figures 9 to 11 , Fig. 9 It is a schematic diagram of the arrangement of the through-beam sensor under a viewing angle; Fig.10 This is a schematic diagram of the arrangement of the through-beam sensor from another perspective; Fig.11 It is a schematic diagram of the front view of the arrangement of the through-beam sensor; four pairs of through-beam switches 20 are arranged in the heating cabinet, and the purpose is to judge the storage situation of the lunch boxes in the heating cabinet and transmit the information to other automated equipment, at which time other automated equipment can know the current situation in the heating cabinet for the next step of work; the through-beam switch 20 can choose a laser through-beam sensor, and the sensor needs to be resistant to high temperature and waterproof.

[0040] When there is something between a pair of beam switches 20, the signal will be blocked, and the beam switch 20 sends a blocking signal to the controller. At this time, the controller detects the blocking signal and determines that there is a lunch box at this position; when the beam switch 20 beams, it determines that there is no lunch box at this position.

[0041] The working process of the multifunctional heating cabinet of the embodiment of the present invention is as follows: when the automated equipment puts the lunch box into the heating cabinet, it is first necessary to determine whether there is a lunch box in the cavity and where the lunch box is. The travel switch and four pairs of opposing switches can give corresponding signals for judgment, and then determine whether the sliding door is allowed to be opened. In the absence of a command, the sliding door remains normally closed.

[0042] The following conditions must be met for the sliding door to open: A. The signals of the two trays are judged to be triggered at the same time (indicating that both trays are placed properly); B. The four pairs of through-beam sensors are not all blocked (indicating that there are other places on the trays for lunch boxes); C. The heating cabinet has not started heating (the sliding door is not allowed to be opened during the heating process). When the above three conditions A, B, and C are met at the same time, the sliding door is allowed to open.

[0043] Fig.12The overall appearance of a vending machine equipped with a multifunctional heating cabinet according to an embodiment of the present invention is shown, including a freezer 24, a heating cabinet 26 and an automatic conveying device for conveying food from the freezer 24 to the heating cabinet 26, and the heating cabinet 26 is arranged on one side of the freezer 24; the heating cabinet 26 is a multifunctional heating cabinet according to an embodiment of the present invention, and a swing door (not shown in the figure) of the heating cabinet 26 is arranged on the front of the vending machine for customers to take food, and a sliding door assembly 23 is provided on the side of the heating cabinet 26 facing the freezer 24, and a reversible freezer inner door 21 is provided at the position where the freezer 24 and the heating cabinet 26 are connected, and the opening of the sliding door faces the automatic equipment of the vending machine, such as automatic conveying equipment such as a robotic arm. When the tray is placed, there is a position for placing the meal box 22, and the heating cabinet 26 is not heated, the sliding door is opened, and the robotic arm places the meal box into the heating cabinet.

[0044] In the technical solution of the implementation mode of the present invention, an automatically sliding door is provided on the side of the heating cabinet for other automated equipment to place and take meals, and a swing door is provided on the front of the cabinet for users to take meals; a switch is provided on the side wall of the heating cabinet for determining the presence of a tray, and four pairs of through-beam sensors are provided in the heating cabinet for determining the storage status of meal boxes in the heating cabinet; the switch sends a trigger signal to the controller, and the through-beam sensor sends a partition signal to the controller, and the controller controls the opening of the sliding door and feeds back information to other automated equipment so that other automated equipment can place food in the heating cabinet.

[0045] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may occur depending on design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multifunctional heating cabinet, the front of which is provided with a swing door (3), characterized in that: A sliding door assembly (23) is provided on one side of the multifunctional heating cabinet.

2. The multifunctional heating cabinet according to claim 1, characterized in that: The sliding door assembly (23) comprises a sliding door (4), a motor (6), a synchronous belt (7), a synchronous belt gear (9), a slide rail (8), a slider (5), and a guide rail, wherein: The motor (6), synchronous belt gear (9), guide rail and slide rail (8) are fixed on the heating cabinet (10); A synchronous belt gear (9) is provided on the output shaft of the motor (6), and the synchronous belt (7) is connected to the synchronous belt gear (9); The synchronous belt (7) is parallel to the sliding door (4) and the sliding rail (8); One end of the slider (5) is fixed to the synchronous belt (7), and the slider (5) slides along the slide rail (8); The slide block (5) is provided with a guide groove (13) perpendicular to the slide rail (8); The sliding door (4) is located in the guide rail.

3. The multifunctional heating cabinet according to claim 2, characterized in that: The guide rail comprises an upper guide rail and a lower guide rail (14), the upper guide rail comprises a front guide rail (1) and a rear guide rail (2), the front ends of the front guide rail (1) and the rear guide rail (2) are bent toward the center of the heating cabinet to form a bent portion (27), and the front end and the middle portion of the lower guide rail (14) are respectively provided with a bent portion (27); A front short column (121) is provided at the front end of the upper edge of the sliding door (4) in the cabinet door closing direction, and the front short column (121) slides in the front guide rail (1); When the sliding door (4) slides to the front end in the cabinet door closing direction, the front short upright post (121) is located at the front end of the cabinet door closing direction of the front guide rail (1).

4. The multifunctional heating cabinet according to claim 3, characterized in that: A limiting structure is provided at the rear end of the sliding door (4) in the closing direction of the cabinet door, and the limiting structure is located in the guide groove (13).

5. The multifunctional heating cabinet according to claim 4, characterized in that: The limiting structure is a rear short column (122) arranged at the rear end of the cabinet door closing direction at the upper edge of the sliding door (4), the rear short column (122) extending out of the rear guide rail (2) and the end portion of which is located in the guide groove (13); When the sliding door (4) slides to the front end in the door closing direction, the rear short column (122) is located at the front end of the rear guide rail (2) in the door closing direction and at one side of the guide groove (13) facing the center direction of the heating cabinet.

6. The multifunctional heating cabinet according to claim 2, characterized in that: Two rollers (11) are provided on the lower edge of the sliding door (4).

7. The multifunctional heating cabinet according to claim 2, characterized in that: The slide block (5) is L-shaped and consists of a first section (51) and a second section (52) which are perpendicular to each other. The first section (51) is fixed on the synchronous belt (7), and the second section (52) is located on the upper guide rail. The guide groove (13) is located at the rear end of the second section (52) in the cabinet door closing direction.

8. The multifunctional heating cabinet according to claim 1, characterized in that: The inner wall of the heating cabinet is provided with a switch and a push pin (18), and the edge of the tray of the heating cabinet is provided with a push block (16), wherein: The ejector pin (18) is connected to the switch; When the tray is located in the heating cabinet, the push block (16) pushes against the push pin (18) so that the push pin (18) is compressed, thereby triggering the switch.

9. The multifunctional heating cabinet according to claim 8, characterized in that: Two side walls adjacent to the swing door (3) are provided with beam switches (20).

10. A vending machine, comprising a freezing cabinet (24) and a heating cabinet (26), characterized in that: The heating cabinet (26) is a multifunctional heating cabinet as claimed in any one of claims 1 to 9, the swing door (3) of the heating cabinet (26) is arranged at the front of the vending machine, and the opening of the sliding door assembly (23) faces the freezer (24).

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