CN109859393B - A lunch box food assembly line automatic vending device and its use method - Google Patents

Abstract

An automatic vending device and usage method for a lunch box food assembly line, including a conveyor belt and a long shelf plate installed in parallel. At least two automatic vegetable loading machines are fixed on the long shelf. The meal selection screen is fixed on the long shelf board and is located at the end of the conveyor belt transmission path. The lunch box output machine and the lunch box blocking member are respectively fixed at the front and rear ends of the conveyor belt. The inner cavity of the lunch box box of the lunch box output machine is stacked with square lunch boxes with partial notches. The meal selection screen is equipped with functional modules for customer meal selection and payment operations. When selecting meals, customers select the desired dishes on the meal selection screen and pay. After payment, the machine starts operating in automatic mode. The beneficial effects of the present invention are: the lunch box food assembly line automatic vending device and usage method of the present invention realize integrated meal selection, lunch box output, food loading and meal taking, and can assist or replace canteen workers in their work, effectively and significantly Improve the efficiency of food sales in canteens and alleviate the congestion problem in canteens during peak dining periods.

Description

A lunch box food assembly line automatic vending device and its use method

Technical field

The invention relates to an automatic filling and selling system for lunch box food.

Background technique

At present, as colleges and universities expand their enrollment and the number of students continues to increase, the traditional model of manpower assembling lunch boxes in colleges and universities has shown its fatigue in the face of the higher-demand catering system. This is especially reflected in the meal times at noon and evening. During peak periods, overcrowding in the cafeteria can be said to be the norm in major universities.

Although the known food loading machines currently on the market can replace manual work, they can only complete a single function and cannot fundamentally improve the efficiency of food sales in canteens and alleviate the congestion problem during peak dining periods. The patented "Fully Automatic Canteen Food Sales System" announced this year can replace human labor to realize an automatic food sales model, but it has the problems of large area, long process, complicated control and high production cost.

Contents of the invention

In view of the shortcomings of the existing technology, the technical problem to be solved by the present invention is to propose an automatic lunch box food assembly line automatic vending device that can realize tasks such as automatically selecting meals, outputting lunch boxes, loading dishes, and taking meals. The specific technical solution is as follows : An automatic vending device for lunch box food assembly lines, including a conveyor belt and a long shelf plate installed in parallel, and is characterized in that: the upper surface of the long shelf plate is at least higher than the height of a lunch box on the upper surface of the conveyor belt. At least two automatic vegetable loading machines are fixed on the long shelf. There are three automatic vegetable loading machines in this case. The meal selection screen is fixed on the long shelf board and is located at the end of the conveyor belt transmission path. The lunch box output machine and the lunch box blocking member are respectively fixed at the front and rear ends of the conveyor belt. In the inner cavity of the lunch box box of the lunch box output machine, square lunch boxes with partial notches are stacked in pairs in opposite directions from bottom to top. The shape of the lunch box is an ordinary square, and a square notch deviating from the center line is symmetrically opened on the top of its two opposing sides. The direction of the common axis of the two notches on the lunch box is parallel to the transmission direction of the conveyor belt. The bottom of the lunch box box is fastened to the concave bottom plate, and the notch of the concave bottom plate faces the transmission path of the conveyor belt. The bottom of the concave bottom plate is higher than the height of a lunch box on the conveyor belt. The stacked lunch boxes pass through the inside of the lunch box box and the notch of the concave bottom plate. A linear motor is fixed on one side of the concave bottom plate, and the linear motor is placed perpendicularly to the transmission path of the conveyor belt. The end of the push rod of the linear motor is provided with a vertically downward baffle. The bottom of the baffle is higher than the bottom of the notch on the lunch box on the surface of the conveyor belt and lower than the top of the notch on the lunch box. . When the linear motor is in the extended and retracted states, the position of the baffle is on the same axis as the notches on the two oppositely placed lunch boxes on the conveyor belt. The lower half of the vegetable storage box of the automatic vegetable loading machine is provided with a slope i, and the outlet of the slope i is connected with the raised notch on the upper shelf plate below to form a vegetable storage box outlet. There is a horizontal vegetable pushing slider between the upper shelf plate and the lower shelf plate of the vegetable loading machine. The vegetable loading machine output port is provided on one side of the lower shelf plate. The horizontal vegetable pushing slide block is provided with a vegetable collecting trough in the middle and a hinge ii is fixed on the left side, and there is a sliding friction gap between the upper shelf plate and the lower shelf plate. There is a screw rod connected to the stepper motor on one side of the vegetable storage box, and the vertical vegetable pushing slider is connected to the screw rod. The vertical vegetable slider is provided with a hinge i on one side and a slope ii below the other side. The two ends of the connecting rod are connected to hinge i and hinge ii respectively. Sensors are provided at the positions of the automatic vegetable loading machines on the sides of the conveyor belt. The lunch box blocking member is plate-shaped, higher than the upper surface of the conveyor belt and lower than the height of one lunch box. The sensor is a normally open photoelectric switch. The meal selection screen is equipped with functional modules for customer meal selection and payment operations.

A method of selling meals using the above-mentioned lunch box food assembly line automatic vending device:

1) When selecting a meal, the customer selects the desired dish on the meal selection screen and pays. After payment, the machine starts to operate automatically.

2) The conveyor belt runs first, and the linear motor at the lunch box output machine reverses once to output a lunch box. The lunch box contains rice and moves along the path of the conveyor belt. When it passes the position of the relevant automatic vegetable loading machine, it is blocked by the linear motor there. At the same time, the sensor at the position of the automatic vegetable loading machine receives the position signal of the lunch box and closes. , the control system determines whether it is the required dish. If so, the stepper motor of the automatic vegetable loading machine rotates, and the automatic vegetable loading machine performs the vegetable loading function. After the vegetable loading is completed, the linear motor there reverses once. If not, the loading process is skipped, and the linear motor there directly reverses once. After the linear motor here reverses once, the lunch box continues to move along the conveyor belt path. Finally, the lunch box moves to the position where the lunch box blocking member is blocked and stops moving for customers to take away, and the conveyor belt stops moving.

The beneficial effects of the present invention are: the lunch box food assembly line automatic vending device and the usage method of the present invention realize integrated meal selection, lunch box output, food loading and meal taking, and can assist or replace canteen workers, effectively and significantly Improve the efficiency of food sales in canteens and alleviate the congestion problem in canteens during peak dining periods.

Description of the drawings

Figure 1 is a schematic three-dimensional structural diagram of an automatic vending device for lunch box food assembly line according to the present invention.

Figure 2(a) is a schematic structural diagram of the lunch box output machine in Figure 1.

Figure 2(b) is a front view and a partial cross-sectional view of Figure 2(a).

Figure 3 is a schematic structural diagram of the lunch box numbered 8 in Figure 2(a).

Figure 4(a) is a front view of the automatic vegetable loading machine in the embodiment of Figure 1.

Figure 4(b) is a side cross-sectional view of Figure 4(a).

Figure 4(c) is a side view of Figure 4(a) when the automatic vegetable loading machine is in a state where it has just finished loading vegetables.

In the picture: 1. Notch; 2. Incline i; 3. Conveyor belt; 4. Long shelf; 5. Meal selection screen; 6. Lunch box stopper; 7. Lunch box box; 8. Lunch box; 9. Concave Z-shaped bottom plate; 10. Linear motor i; 11. Baffle; 12. Vegetable storage box; 13. Vegetable storage box outlet; 14. Upper shelf plate; 15. Lower shelf plate; 16. Horizontal vegetable pushing slider; 17. Vegetable collecting trough; 18. Vegetable loading machine output port; 19. Screw rod; 20. Vertical vegetable pushing slider; 21. Connecting rod; 22. Stepper motor; 23. Sensor; 24. Push rod; 25. Protrusion Notch; 26, hinge i; 27, hinge ii; 28, slope ii.

Detailed ways

The technical solution of the present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

The automatic lunch box food assembly line vending device of the present invention is sequentially provided with a lunch box output machine, at least two automatic vegetable loading machines, a lunch box blocking member 6 and a meal selection screen 5 on the transmission path of the conveyor belt 3 .

One side of the conveyor belt 3 is provided with a long shelf plate 4, the upper surface height of the long shelf plate is higher than the height of at least one lunch box on the upper surface of the conveyor belt. The automatic vegetable loading machine is installed on the long shelf plate 4. The meal selection screen 5 is installed on the long shelf 4 at one end of the transmission path of the conveyor belt 3, as shown in Figure 1.

There are several square lunch boxes 8 provided with partial notches 1 stacked two by two in the lunch box box 7 of the lunch box output machine, as shown in Figure 2(b).

The off-notch square lunch box 8 is an ordinary square lunch box with two square notches 1 offset from the center line symmetrically opened on the top of its two opposite sides, as shown in Figure 3.

The direction of the common axis of the two square notches 1 on the lunch box 8 is parallel to the transmission direction of the conveyor belt. The lunch box 8 has built-in rice. The inside of the lunch box box 7 is connected up and down without obstruction, and the bottom of the lunch box box 7 is provided with a concave bottom plate 9 . The notch of the concave bottom plate 9 faces the transmission path of the conveyor belt 3 . The bottom of the concave bottom plate 9 is higher than the height of a lunch box on the upper surface of the conveyor belt 3 . The stacked lunch boxes 8 pass through the notch between the inside of the lunch box box 7 and the concave bottom plate 9, and are directly placed on the conveyor belt 3. A linear motor 10 is fixed on one side of the concave bottom plate 9 . The linear motor 10 is placed perpendicularly to the transmission path of the conveyor belt 3 . As shown in Figure 2-a and Figure 2-b.

The end of the push rod 24 of the linear motor 10 is provided with a vertically downward blocking piece 11 that can block the movement of the lunch boxes on the surface of the conveyor belt. The bottom of the blocking piece 11 is higher than the bottom of the notch 1 opened on the lunch boxes on the surface of the conveyor belt 3. position, lower than the top position of the notch 1 opened on the lunch box. When the linear motor 10 is in the extended and retracted states, the position of the baffle 11 is on the same axis as the notch 1 on the two oppositely placed lunch boxes 8 on the conveyor belt 3, as shown in Figure 2 ( b) shown.

When the conveyor belt 3 moves, if the notch 1 on the surface of the conveyor belt 3 and the baffle 11 on the lunch box 8 are not at the same axis, the movement of the lunch box 8 will be blocked. When the linear motor 10 reverses, the baffle 11 moves to the side coaxial with the notch 1 on the lunch box 8. At this time, the bottom lunch box 8 moves with the conveyor belt 3, and the reverse side of the lunch box 8 placed on the lunch box 8 moves in reverse direction. Drop to the bottom of the stacked lunch boxes 8. If the linear motor 10 does not rotate again, the notch 1 on the next lunch box 8 and the baffle 11 are not axial, and the movement of the lunch box 8 is blocked, as shown in Figure 2(b).

The initial position of the baffle 11 on the linear motor 10 is on the non-notched side of the square lunch box 8 that is notched on the surface of the conveyor belt 3, as shown by the dotted line in Figure 2(b).

The automatic vegetable loading machine is provided with a vegetable storage box 12 with built-in dishes. The lower half of the inside of the vegetable storage box 12 is provided with a slope i-2. The inclined surface i-2 is connected with the raised notch 25 on the upper shelf plate 14 below to form a vegetable storage box outlet 13. A horizontal vegetable pushing slider 16 is provided between the upper shelf plate 14 and the lower shelf plate 15 of the vegetable loading machine. The vegetable loading machine output port 18 is provided on one side of the lower shelf plate 15 . The horizontal vegetable pushing slide block 16 is provided with a vegetable collecting groove 17 in the middle, and a hinge ii-27 is fixed on the left side, and there is a sliding friction gap between the upper shelf plate 14 and the lower shelf plate 15. A screw rod 19 connected to a stepper motor 22 is provided on one side of the vegetable storage box 12, and a vertical vegetable pushing slider 20 is connected to the screw rod 19. The vertical vegetable pushing slider 20 is provided with a hinge i-26 on one side and a slope ii-28 on the bottom of the other side; the two ends of the connecting rod 21 are respectively connected to the hinge i-26 and the hinge ii-27; as shown in Figure 4(b) ) shown.

When the vertical food pushing slider 20 moves upward to the extreme position, the vertical food pushing slider 20 drives the horizontal pusher connected to the connecting rod 21 through the hinge ii-27 through the connecting rod 21 connected by its hinge i-26. The vegetable slider 16 slides to the extreme position to the left, aligning the vegetable collection trough 17 with the vegetable storage box outlet 13 up and down, and collects the vegetables falling from the vegetable storage box outlet 13; when the vegetable slider 20 is pushed vertically downward During the movement, the vertical vegetable pushing slider 20 drives the horizontal vegetable pushing slider 16 connected to the connecting rod 21 through the hinge ii-27 to slide to the right through the connecting rod 21 connected by its hinge i-26 to move the vegetable collecting trough. The vegetables collected in 17 are pushed to the output port 18 of the vegetable loading machine. During this process, there are the upper right edge of the vegetable collection slot 17 of the horizontal vegetable pushing slider 16 and the right edge of the inclined surface ii-28 of the vertical vegetable pushing slider 20. At the moment when the lower edges overlap, after this moment, the inclined surface ii-28 continues to move downward, and at the same time the vegetable collecting trough 17 continues to move to the right, so that the space formed by the inclined surface ii-28 and the vegetable collecting trough 17 gradually decreases, so that the vegetable collecting trough 17 The vegetables in the vegetable trough 17 are subject to downward squeezing force and fall rapidly from the output port 18 of the vegetable loading machine. When the upper left edge of the vegetable trough 17 moves to a position coinciding with the upper left edge of the slope ii-28, The process ends. As shown in Figure 4(b), Figure 4(c).

The up and down movement of the vertical vegetable pushing slide block 20 is realized by the transmission of the stepper motor 22 through the screw rod 19. As shown in Figure 4(b).

On the transmission path of the conveyor belt 3, the position of each automatic vegetable loading machine 2 is provided with a sensor 23 that can receive the position information of the lunch box, and a linear motor 10 that can block the movement of the square lunch box 8 with an offset notch. As shown in Figure 4(a). The sensor 23 in this case uses a normally open photoelectric switch.

The meal selling method of the present invention is:

When starting to select a meal, the customer selects the desired dish at 5 on the meal selection screen and pays. After payment, the machine starts to operate automatically:

Conveyor 3 runs first. The linear motor 10 at the lunch box output machine 1 rotates once to output a lunch box 8. The rice in the lunch box 8 moves along the conveyor belt path. When passing through the position of each automatic vegetable loading machine 2, it is blocked by the linear motor 10 there. At the same time, the normally open photoelectric switch 23 at the position of the automatic vegetable loading machine 2 receives the After the position signal of the lunch box 8 is closed, the control system determines whether it is the required dish: if so, the stepper motor 22 of the automatic vegetable loading machine 2 rotates, and the automatic vegetable loading machine 2 performs the loading function. After loading, the The linear motor 10 of the position is reversed once; if not, the loading process is skipped, and the linear motor 10 of the position is directly reversed once. After the linear motor 10 here rotates once, the lunch box 8 continues to move along the path of the conveyor belt 3 . Finally, the lunch box 8 moves to the position where the lunch box blocking member 6 is blocked and stops moving for the customer to take away. The conveyor belt stops moving.

Claims (4)

1. An automatic vending device for lunch box food assembly lines, including a conveyor belt (3) and a long shelf plate (4) installed in parallel, characterized in that: the upper surface of the long shelf plate (4) is at least higher than the conveyor belt (4) 3) The upper surface is as high as one lunch box (8). At least two automatic vegetable loading machines are fixed on the long shelf plate (4), and the meal selection screen (5) is fixed on the long shelf plate (4). At the end of the transmission path of the conveyor belt (3), the lunch box output machine and the lunch box stopper (6) are respectively fixed at the front and rear ends of the conveyor belt (3); the lunch box box (7) of the lunch box output machine In the inner cavity, square lunch boxes (8) with partial notches are stacked two by two in opposite directions from bottom to top; the lunch boxes (8) are in the shape of an ordinary square and have one symmetrically opened at the top of its two opposite sides. A square notch (1) deviated from the center line, the direction of the common axis of the two notches (1) on the lunch box (8) is parallel to the transmission direction of the conveyor belt (3); the bottom of the lunch box box (7) is parallel to The concave bottom plate (9) is fastened, and the notch of the concave bottom plate (9) faces the transmission path of the conveyor belt (3); the bottom of the concave bottom plate (9) is higher than the upper surface of the conveyor belt (3) The height of one lunch box (8); the stacked lunch boxes (8) pass through the inside of the lunch box box (7) and the notch of the concave-shaped bottom plate (9), and one of the concave-shaped bottom plates (9) A linear motor (10) is fixed on the side, and the linear motor (10) is placed perpendicularly to the transmission path of the conveyor belt (3); The end of the push rod (24) of the linear motor (10) is provided with a vertically downward blocking piece (11). The bottom position of the blocking piece (11) is higher than the notch opened on the lunch box (8) on the surface of the conveyor belt. The bottom position of (1) is lower than the top position of the notch (1) opened on the lunch box (8); when the linear motor (10) is in two states of extending and retracting, the baffle ( 11) are positioned on the same axis as the notches (1) on the two oppositely placed lunch boxes (8) on the conveyor belt (3); The lower half of the vegetable storage box (12) of the automatic vegetable loading machine is provided with a slope i (2). The outlet of the slope i (2) and the raised notch (25) on the upper shelf plate (14) below it The vegetable storage box is connected to form a vegetable outlet (13); a horizontal vegetable pushing slider (16) is provided between the upper shelf plate (14) and the lower shelf plate (15) of the vegetable loading machine, and the lower shelf plate (15) ) is provided with a vegetable loading machine output port (18) on one side; the horizontal vegetable pushing slider (16) is provided with a vegetable collecting trough (17) in the middle and a hinge ii (27) is fixed on the left side and is connected with the upper shelf There is a sliding friction gap between the plate (14) and the lower shelf plate (15); one side of the vegetable storage box (12) is provided with a screw rod (19) connected to the stepper motor (22), and a vertical vegetable pushing slider (20) ) is connected to the screw rod (19), the vertical vegetable pushing slider (20) is provided with a hinge i (26) on one side and a slope ii (28) on the bottom of the other side; the connecting rod (21) The two ends are respectively connected to the hinge i (26) and the hinge ii (27); sensors (23) are respectively provided at the positions of the automatic vegetable loading machines on the sides of the conveyor belt (3); There are three automatic vegetable loading machines in this case; The lunch box blocking member (6) is plate-shaped, higher than the upper surface of the conveyor belt (3) and lower than the height of a lunch box (8). 2. The automatic vending device of lunch box food assembly line according to claim 1, characterized in that: the sensor (23) is a normally open photoelectric switch. 3. The automatic vending device of lunch box food assembly line according to claim 1, characterized in that: the meal selection screen (5) is provided with a customer meal selection and payment operation functional module. 4. A method of selling meals using the automatic vending device of the lunch box food assembly line of claim 1: 1) When selecting meals, the customer selects the required dishes on the meal selection screen (5) and pays. After payment, the machine starts Automatic operation mode: 2) The conveyor belt (3) runs first, and the linear motor (10) at the lunch box output machine reverses once to output a lunch box (8); the lunch box (8) has rice inside and moves along the path of the conveyor belt (3) , when passing the position of the relevant automatic vegetable loading machine, it is blocked by the linear motor (10) there. At the same time, the sensor (23) at the position of the automatic vegetable loading machine receives the position signal of the lunch box (8) and closes, and the control system Determine whether it is the required dish: if so, the stepper motor (22) of the automatic vegetable loading machine rotates, and the automatic vegetable loading machine performs the vegetable loading function; after the vegetable loading is completed, the linear motor (10) there reverses once; If not, the loading process is skipped, and the linear motor (10) at that location directly reverses once; after the linear motor (10) at that location reverses once, the lunch box (8) continues to move along the path of the conveyor belt (3); finally , the lunch box (8) moves to the position where the lunch box blocking member (6) is blocked, stops moving, and is available for customers to take away, and the conveyor belt stops moving.