A material falling buffering device of a vending machine

Abstract

The utility model discloses an unattended vending machine blanking buffer device relates to unattended vending machine technical field, including the shell, the lateral cover plate is bolted and connected to the shell one side face opening, the upper end fixed junction has the inclined board on the shell inner wall, and the lower end of the inclined board top surface is opened and has the feed inlet, and the guide tube is bolted and connected to the inclined board bottom surface at the feed inlet, the utility model discloses the cooperation of the buffer plate of guide tube inner wall and the buffer assembly, and the first buffer spring of buffer assembly can buffer the rotation amplitude of buffer plate through the connecting plate, when the goods fall into the buffer plate, the buffer plate rotates downward along with the goods weight and compresses the first buffer spring, and the initial speed of goods falling is conveniently slowed down, and the goods impact intensity is reduced, and the buffer effect of goods falling initial stage is improved, finally, the problem that the blanking passage has no buffer component, and the goods impact with faster speed leads to the packaging breakage, internal food fragmentation is solved, the integrity and safety of goods conveying are improved, and the goods protection effect is further improved.

Description

Technical Field

[0001] This utility model relates to the field of vending machine technology, and in particular to a material feeding buffer device for vending machines. Background Technology

[0002] The current mainstream unmanned vending machine's material unloading structure mainly consists of a storage channel, a motor-driven dispensing mechanism, and an open bottom material unloading channel; For bottled beverages, boxed snacks, and fragile foods, when the shipping mechanism is triggered, the goods will fall directly from the cargo channel into the material drop channel. Since the material drop channel is mostly a straight cylindrical structure without any cushioning components, the goods will hit the bottom of the material drop channel or the receiving platform at a relatively fast speed under the action of gravity, which can easily lead to damage to the packaging and breakage of the food inside. Therefore, the above problems need to be improved. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a material feeding buffer device for unmanned vending machines.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a material feeding buffer device for an unmanned vending machine, comprising a housing, an opening on one side of the housing and a side cover plate bolted thereto, an inclined plate fixed to the upper end of the inner wall of the housing, a feeding port at the lower end of the top surface of the inclined plate, a guide cylinder fixed to the bottom surface of the inclined plate at the feeding port, a buffer plate rotatably hinged to the upper end of the inner wall of the guide cylinder, a buffer assembly provided on one side of the outer wall of the guide cylinder, a friction table hinged to the bottom end of the inner wall of the guide cylinder, an adjustment assembly hinged to one end of the bottom surface of the friction table, the friction table being inclined, a receiving box provided on the inner bottom surface of the housing at the end of the friction table, a retrieval slot provided on the housing at the receiving box, a first spring telescopic rod provided at each of the four corners of the inner bottom surface of the receiving box, a storage platform fixed to the telescopic end of the first spring telescopic rod, and a rubber pad fixed to the top surface of the storage platform by bolts.

[0005] Preferably, the buffer assembly includes a mounting plate fixed to the outer walls of both sides of the feed cylinder. The mounting plate has a plurality of threaded holes equidistantly opened on one end face of the outward side. A positioning post is screwed into one of the threaded holes. A first connecting plate is rotatably sleeved on the positioning post. A mounting sleeve is sleeved on one end of the first connecting plate. A first buffer spring is provided inside the mounting sleeve and fixed to the first connecting plate. A second connecting plate is fixed to one end of the first buffer spring. A third connecting plate is hinged to one side end of the second connecting plate. One end of the third connecting plate is fixed to the hinge shaft of the buffer plate.

[0006] Preferably, the top surface of the buffer plate has a rectangular groove, and the bottom surface of the rectangular groove is provided with buffer posts at the four corners. The top of the buffer posts is fixed with a rectangular plate whose shape fits the inner wall of the rectangular groove.

[0007] Preferably, the adjustment component includes a rectangular box, a positioning screw is rotatably provided inside the rectangular box, the rectangular box is hollow inside, a driven bevel gear located inside the rectangular box is coaxially fixed to one end of the positioning screw, a driving bevel gear is meshed on one side of the driven bevel gear, and a knob rotatably provided on one side of the outer wall of the rectangular box is coaxially fixed to one end of the driving bevel gear.

[0008] Preferably, the inner walls on both sides of the rectangular box have guide grooves, and a horizontal plate sleeved on the positioning screw is slidably disposed in the guide grooves. A second spring telescopic rod is symmetrically hinged at both ends of the top surface of the horizontal plate. The top surface of the rectangular box has two guide grooves symmetrically disposed for the extension of the second spring telescopic rod. A horizontal sleeve is fixedly connected to the top end of the second spring telescopic rod. A rotating rod is inserted through the inner wall of the horizontal sleeve. Fixed seats are sleeved at both ends of the rotating rod. The top surface of the fixed seat is fixedly connected to the bottom surface of the friction table.

[0009] Preferably, the top surface of the friction table is provided with multiple rubber baffles at equal intervals. The rubber baffles have rectangular cross-sections and extend along the length of the friction table. Buffer pads are symmetrically provided on both sides of the inner wall of the receiving box.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, through the cooperation of the buffer plate and buffer assembly on the inner wall of the guide cylinder, allows the first buffer spring of the buffer assembly to buffer the rotation amplitude of the buffer plate via the connecting plate. When the goods fall into the buffer plate, the buffer plate rotates downwards with the weight of the goods and compresses the first buffer spring, which helps to slow down the initial speed of the falling goods, reduce the impact force, and improve the buffering effect in the initial stage of the falling goods, thus achieving the function of initial deceleration and protection. Furthermore, through the cooperation of the buffer column in the rectangular groove on the top surface of the buffer plate and the rectangular plate, when the rectangular plate receives the goods, the buffer column can further absorb the impact energy of the goods, facilitating the reduction of hard collisions between the goods and the buffer plate, improving the surface protection effect of the goods, thus achieving the function of secondary buffering and protection. Simultaneously, through the cooperation of the friction table at the bottom end of the guide cylinder and the rubber baffle on the top surface, the friction table is tilted to provide... The rubber baffles along the descent path increase friction between the goods and the friction table, slowing down the descent speed and preventing high-speed impacts after rapid sliding. This extends the buffer time during the descent, improving the stability of the descent and providing a third deceleration protection function. Furthermore, by adjusting the components and the friction table, when the second spring telescopic rod loses its elasticity, causing the friction table angle to shift, the knob can be manually turned to drive the positioning screw to adjust the friction table angle. This ensures the goods slide precisely along the friction table, preventing them from deviating and impacting the guide cylinder or the inner wall of the receiving box, reducing additional collision damage and improving the stability of the descent path. This also enables a goods path calibration protection function. Ultimately, this solves the problem of packaging damage and internal food breakage caused by rapid impacts from goods in the unloading channel due to the lack of buffer components, improving the integrity and safety of goods transport and further enhancing the goods protection effect. Attached Figure Description

[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a first-view schematic diagram of the overall structure proposed in this utility model; Figure 2 This is a schematic diagram of the overall structure of the present invention with the outer shell removed; Figure 3 This is a schematic diagram of the overall structure of the friction table proposed in this utility model; Figure 4 This is a schematic cross-sectional view of the overall structure of the storage box proposed in this utility model.

[0012] The numbers in the diagram are: 1. Outer shell; 2. Feed inlet; 3. Side cover plate; 4. Buffer plate; 5. Mounting sleeve; 6. Positioning post; 7. Friction table; 8. Receiving and unloading box; 9. Buffer post; 10. Horizontal sleeve; 11. Storage platform; 12. Positioning screw. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0014] Example: See Figures 1 to 4This utility model discloses a material feeding buffer device for an unmanned vending machine, comprising a housing 1, a side cover plate 3 bolted to an opening on one side of the housing 1, an inclined plate fixed to the upper end of the inner wall of the housing 1, a feeding port 2 at the lower end of the top surface of the inclined plate, a guide cylinder fixed to the bottom surface of the inclined plate at the feeding port 2, a buffer plate 4 rotatably hinged to the upper end of the inner wall of the guide cylinder, a buffer assembly provided on one side of the outer wall of the guide cylinder, a friction table 7 hinged to the bottom end of the inner wall of the guide cylinder, an adjustment assembly hinged to one end of the bottom surface of the friction table 7, the friction table 7 being inclined, a receiving box 8 provided on the inner bottom surface of the housing 1 at the end of the friction table 7, a retrieval slot provided on the housing 1 at the receiving box 8, and a first spring telescopic rod provided at each of the four corners of the inner bottom surface of the receiving box 8, the telescopic ends of the first spring telescopic rods being fixed to a storage unit. Platform 11 has a rubber pad bolted to its top surface. The first spring telescopic rod is a small compression spring telescopic rod with a moderate extension stroke, effectively absorbing the impact force of the goods. The outer shell 1 is made of cold-rolled steel plate, which provides high structural strength and a stable installation environment for internal components. The rubber pad is made of nitrile rubber, which has good elasticity and wear resistance, reducing impact damage between the goods and the storage platform 11. The outer shell 1 provides external protection and a foundation for the entire device. The feed inlet 2 accurately guides the goods into the guide cylinder, and the receiving box 8 receives the goods as they fall. The first spring telescopic rod works in conjunction with the storage platform 11 to buffer the goods at the end. The above components together constitute the device. The basic framework provides stable support for the subsequent installation and operation of various buffer components. Each buffer component includes a mounting plate fixed to the outer walls of both sides of the feed cylinder. Multiple threaded holes are equidistantly spaced on the outward-facing end face of the mounting plate. A positioning pin 6 is screwed into one of these threaded holes. A first connecting plate is rotatably sleeved on the positioning pin 6. A mounting sleeve 5 is sleeved on one end of the first connecting plate. A first buffer spring, fixed to the first connecting plate, is installed inside the mounting sleeve 5. A second connecting plate is fixed to one end of the first buffer spring, and a third connecting plate is hinged to one side of the second connecting plate. One end of the third connecting plate is fixed to the hinge shaft of the buffer plate 4. The first buffer spring is a cylindrical helical compression spring with a stable elastic coefficient, effectively buffering the rotation amplitude of the buffer plate 4. The mounting sleeve 5... The mounting sleeve 5, made of 45# steel, has a strong load-bearing capacity and can protect the internal first buffer spring. The positioning column 6 is made of 304 stainless steel, which is rust-resistant and can stably support the rotation of the first connecting plate for a long time. The first buffer spring can buffer the rotation speed of the buffer plate 4 through the transmission of the first connecting plate, the second connecting plate and the third connecting plate, so as to avoid excessive force when the goods hit the buffer plate 4. At the same time, the positioning column 6 can be adjusted in installation position through different threaded holes to adapt to the buffering needs of goods of different weights and improve the adaptability of the device to goods. The top surface of the buffer plate 4 has a rectangular groove, and the four corners of the bottom surface of the rectangular groove are equipped with buffer columns 9. The top of the buffer column 9 is fixed with a rectangular plate that fits the inner wall of the rectangular groove.The buffer column 9 is made of polyurethane, which has good elasticity and high compressive strength, effectively absorbing the impact energy of the goods. The rectangular plate is made of ABS engineering plastic, which is lightweight and tough, and can conform to the surface of the goods to bear the load, reducing local impact damage. The buffer column 9 and the rectangular plate work together to provide secondary cushioning for the goods falling on the buffer plate 4, further absorbing the impact energy of the goods and preventing the goods from making direct hard contact with the buffer plate 4, thus protecting the integrity of the goods packaging. At the same time, the rectangular plate conforms to the inner wall of the rectangular groove, preventing the goods from slipping off the side of the buffer plate 4 and improving the stability of the goods falling.

[0015] In this invention, the adjusting component includes a rectangular box, inside which a positioning screw 12 is rotatably mounted. The rectangular box is hollow, and one end of the positioning screw 12 is coaxially fixed to a driven bevel gear located inside the rectangular box. A driving bevel gear meshes with one side of the driven bevel gear, and one end of the driving bevel gear is coaxially fixed to a knob rotatably mounted on one side of the outer wall of the rectangular box. The positioning screw 12 is a trapezoidal threaded screw, which has high transmission efficiency and can stably adjust the position of the cross plate. Both the driving and driven bevel gears are made of 40Cr material, which has high hardness and strong wear resistance, ensuring stable long-term meshing transmission. The knob is made of PP plastic, which provides a comfortable feel and facilitates manual rotation by the user. Adjustment: By manually rotating the knob, the driving bevel gear and the driven bevel gear can mesh and transmit power, thereby driving the positioning screw 12 to rotate, providing power for subsequent adjustment of the friction table 7 angle. The trapezoidal threaded positioning screw 12 has a self-locking function, ensuring stable angle maintenance of the friction table 7 after adjustment and preventing angle deviation during use. Guide grooves are opened on the inner walls of both sides of the rectangular box. A horizontal plate, sleeved on the positioning screw 12, slides within the guide grooves. A second spring telescopic rod is symmetrically hinged at both ends of the top surface of the horizontal plate. Two guide grooves are symmetrically opened on the top surface of the rectangular box for the extension of the second spring telescopic rod. A horizontal sleeve 10 is fixedly connected to the top of the second spring telescopic rod. A rotating rod passes through the inner wall of the horizontal sleeve 10, and fixed seats are sleeved at both ends of the rotating rod for fixing. The top surface of the seat is fixedly connected to the bottom surface of the friction table 7; the second spring telescopic rod adopts a small tension spring telescopic rod, which is flexible in extension and retraction and can be adapted to the angle adjustment requirements of the friction table 7; the cross plate is made of Q235 steel plate, which has good structural rigidity and can stably drive the second spring telescopic rod to move; the cross sleeve 10 is made of aluminum alloy, which is lightweight and high in strength, and can ensure stable transmission of the rotating rod; when the positioning screw 12 rotates, it drives the cross plate to slide along the guide groove. The cross plate pushes the cross sleeve 10 and the rotating rod through the second spring telescopic rod, thereby adjusting the tilt angle of the friction table 7, ensuring that the friction table 7 can be accurately aligned with the loading and unloading box 8, avoiding the goods from shifting and impacting. At the same time, the second spring telescopic rod can assist in... The friction platform 7 is slightly shaken by the pressure of the goods, which improves its stability. Multiple rubber baffles are evenly spaced on the top surface of the friction platform 7. These rubber baffles have rectangular cross-sections and extend along the length of the friction platform 7. Buffer pads are symmetrically arranged on both sides of the inner wall of the storage box 8. The rubber baffles are made of natural rubber, which has high friction and good elasticity, effectively reducing the downward speed of the goods. The buffer pads are made of sponge rubber, which is highly soft and has good cushioning effect, reducing impact damage between the goods and the inner wall of the storage box 8. The friction platform 7 is made of acrylic sheet. The surface smoothness of the acrylic friction platform 7 is moderate, allowing the goods to slide smoothly while also generating sufficient friction in conjunction with the rubber baffles.Rubber baffles increase the friction between the goods and the friction table 7, slowing down the downward speed of the goods and preventing them from sliding out of the friction table 7 and impacting the receiving box 8 at high speed. The cushioning pads further protect the goods from impacts with the inner walls of the receiving box 8 during the sliding process, preventing damage. This dual protection enhances the safety of the goods falling.

[0016] Working Principle: When this utility model is used, after the vending machine's dispensing mechanism is triggered, the goods are discharged from the conveyor and first fall onto the top surface of the inclined plate on the inner wall of the outer shell 1. They then slide naturally along the inclined plate to the lower end of the inlet 2, and subsequently enter the guide cylinder on the bottom surface of the inclined plate through the inlet 2. When the goods fall onto the top surface of the buffer plate 4 at the upper end of the inner wall of the guide cylinder, the weight of the goods pushes the buffer plate 4 to rotate downwards around the hinge axis. During the rotation of the buffer plate 4, its hinge axis drives the third connecting plate to rotate synchronously. The third connecting plate pulls the second connecting plate to compress the first buffer spring inside the mounting sleeve 5. The elastic force of the first buffer spring can withstand... The buffer plate 4 reduces the initial velocity of the falling goods by absorbing some of the impact force. Simultaneously, the buffer columns 9 within the rectangular groove on the top surface of the buffer plate 4 support the goods. The buffer columns 9 contract under the pressure of the goods, further absorbing the impact energy and preventing a hard collision between the goods and the buffer plate 4. After buffering, the goods slide down the buffer plate 4 to the top surface of the friction platform 7 at the bottom of the inner wall of the guide cylinder. The friction platform 7 is inclined, providing a stable sliding path for the goods. The equidistantly distributed rubber baffles on its top surface increase the friction between the goods and the surface of the friction platform 7, effectively slowing down the downward speed of the goods and preventing them from accelerating rapidly due to gravity. If the friction table 7 tilts due to the weakening of the elasticity of the second spring telescopic rod after prolonged use, the knob of the adjustment component can be manually turned. The knob drives the active bevel gear to rotate, which in turn drives the driven bevel gear and the coaxial positioning screw 12 to rotate. When the positioning screw 12 rotates, it causes the horizontal plate to slide along the guide groove on the inner wall of the rectangular box. The horizontal plate pushes the horizontal sleeve 10 and the rotating rod through the second spring telescopic rod to adjust the angle of the friction table 7, ensuring that the goods always slide accurately along the center line of the friction table 7, avoiding deviation and impact on the inner wall of the guide cylinder, thus achieving friction deceleration and path calibration. Finally, the goods slide out from the end of the friction table 7. When the goods fall into the storage box 8 inside the outer casing 1, and impact the top surface of the storage platform 11 inside the storage box 8, the storage platform 11 is compressed downward by the pressure of the first spring telescopic rods at the four corners of the bottom surface. The elastic force of the first spring telescopic rods can absorb the final impact force of the falling goods, preventing the goods from directly impacting the bottom of the storage box 8. At the same time, the rubber pad on the top surface of the storage platform 11 and the buffer pad on the inner wall of the storage box 8 can wrap the goods from the top and bottom sides, reducing the friction and impact between the goods and the components of the storage box 8, and further protecting the integrity of the goods packaging. When the user retrieves the goods, the storage box 8 can be pulled out through the retrieval slot on the outer casing 1. At this point, the device is in use.

[0017] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A material feeding buffer device for an unmanned vending machine, comprising a housing (1), characterized in that: The outer shell (1) has an opening on one side and a side cover plate (3) is bolted to it. An inclined plate is bolted to the upper end of the inner wall of the outer shell (1). A feed inlet (2) is opened at the lower end of the top surface of the inclined plate. A guide cylinder is bolted to the bottom surface of the inclined plate at the feed inlet (2). A buffer plate (4) is rotatably hinged to the upper end of the inner wall of the guide cylinder. A buffer assembly is provided on the outer wall of one side of the guide cylinder. A friction table (7) is hinged to the bottom end of the inner wall of the guide cylinder. An adjustment assembly is hinged to one end of the bottom surface of the friction table (7). The friction table (7) is inclined. A storage box (8) is provided at the end of the friction table (7) on the inner bottom surface of the outer shell (1). A retrieval slot is opened at the storage box (8) on the outer shell (1). A first spring telescopic rod is provided at each of the four corners of the inner bottom surface of the storage box (8). A storage platform (11) is bolted to the telescopic end of the first spring telescopic rod. A rubber pad is bolted to the top surface of the storage platform (11).

2. The unmanned vending machine material feeding buffer device according to claim 1, characterized in that: The buffer assembly includes a mounting plate fixed to the outer walls of both sides of the feed cylinder. The mounting plate has multiple threaded holes equidistantly opened on one end face of the outer side. A positioning pin (6) is screwed into one of the multiple threaded holes. A first connecting plate is rotatably sleeved on the positioning pin (6). A mounting sleeve (5) is sleeved on one end of the first connecting plate. A first buffer spring is fixedly connected to the first connecting plate inside the mounting sleeve (5). A second connecting plate is fixedly connected to one end of the first buffer spring. A third connecting plate is hinged to one side of the second connecting plate. One end of the third connecting plate is fixedly connected to the hinge shaft of the buffer plate (4).

3. The unmanned vending machine material discharge buffer device according to claim 1, characterized in that: The top surface of the buffer plate (4) has a rectangular groove, and the four corners of the bottom surface of the rectangular groove are provided with buffer columns (9). The top of the buffer column (9) is fixed with a rectangular plate whose shape fits the inner wall of the rectangular groove.

4. The unmanned vending machine material discharge buffer device according to claim 3, characterized in that: The adjustment assembly includes a rectangular box, inside which a positioning screw (12) is rotatably provided. The rectangular box is hollow inside. One end of the positioning screw (12) is coaxially fixed to a driven bevel gear located inside the rectangular box. A driving bevel gear is meshed on one side of the driven bevel gear. One end of the driving bevel gear is coaxially fixed to a knob rotatably provided on one side of the outer wall of the rectangular box.

5. The unmanned vending machine material discharge buffer device according to claim 4, characterized in that: The rectangular box has guide grooves on both sides of its inner wall. A horizontal plate is slidably mounted on the positioning screw (12) in the guide groove. A second spring telescopic rod is symmetrically hinged at both ends of the top surface of the horizontal plate. The top surface of the rectangular box has two guide grooves symmetrically mounted for the extension of the second spring telescopic rod. A horizontal sleeve (10) is fixedly mounted at the top end of the second spring telescopic rod. A rotating rod is mounted through the inner wall of the horizontal sleeve (10). Fixed seats are mounted at both ends of the rotating rod. The top surface of the fixed seats is fixedly mounted to the bottom surface of the friction table (7).

6. The unmanned vending machine material discharge buffer device according to claim 5, characterized in that: The friction table (7) has multiple rubber baffles at equal intervals on its top surface. The rubber baffles have rectangular cross-sections and extend along the length of the friction table (7). The inner walls of the receiving box (8) are symmetrically provided with buffer pads.

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