Material identification device of coffee vending machine

Abstract

The utility model discloses a material recognition device of a coffee vending machine, and relates to the technical field of coffee vending machines. The vending machine comprises a vending machine shell, a feeding opening is fixedly formed in the top face of the vending machine shell, a smashing assembly is fixedly installed on the bottom face of the feeding opening, a lifting mechanism is arranged on the surface of the inner wall of the vending machine shell, a discharging assembly is fixedly installed on the surface of the lifting mechanism, and a limiting mechanism is arranged on the surface of the inner wall of the vending machine shell. And a filter screen is mounted between the opposite surfaces of the two limiting mechanisms in a sliding manner. The discharging assembly is driven by the lifting mechanism to descend by a certain height, and a filter screen stored in the filter screen storage bin is pushed forwards through the pushing mechanism on the rear side and penetrates through the through groove in the surface of the partition plate to move to the upper surface of the discharging assembly. The discharging assembly and the filter screen are driven by the lifting mechanism to ascend till the filter screen is tightly attached to the bottom face of the smashing assembly, the two limiting mechanisms move oppositely till the two limiting mechanisms are tightly attached to the two sides of the filter screen, and replacement of the filter screen is completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to coffee vending machine technical field, specifically related to a kind of material identification device of coffee vending machine. BACKGROUND

[0002] Unmanned coffee vending machine has adopted advanced internet of things technology and artificial intelligence technology, realizes the whole-process automation from raw material identification, coffee making to automatic settlement, and user only needs to select coffee variety and payment mode through simple operation interface, machine will automatically complete the remaining steps, provides a cup of fresh and delicious coffee for user.

[0003] Prior art discloses a kind of material identification device of coffee vending machine in the authorized announcement No.CN214317790U of Chinese patent, realizes the identification and grinding of coffee bean, and coffee powder is put into specified coffee powder storage tank after grinding, without the confusion situation of delivery multiple coffee beans, improve the intelligent service performance of coffee vending machine, with strong practicality.

[0004] The prior art in the above exists the following defects: after grinding coffee bean, it enters into discharge assembly through filter screen, filter screen is easily blocked after long-term use, not conducive to the discharge of coffee powder, since filter screen is located inside coffee vending machine, replacement and cleaning need to disassemble coffee vending machine, more troublesome, time-consuming and labor-consuming, not conducive to the improvement of work efficiency, also possibly damage the service life of coffee vending machine, in turn, not conducive to the continuous sale of coffee.

[0005] Therefore, a kind of material identification device of coffee vending machine is proposed. UTILITY MODEL CONTENT

[0006] The utility model aims at: to solve the problems mentioned in the above background, the utility model provides a kind of material identification device of coffee vending machine.

[0007] The utility model specifically adopts the following technical solutions to realize the above-mentioned purposes:

[0008] The utility model provides a kind of material identification device of coffee vending machine, including vending machine shell, the top surface of the vending machine shell is fixedly installed with inlet, the bottom surface of the inlet is fixedly installed with crushing assembly, the inner wall surface of the vending machine shell is equipped with lifting mechanism, the surface of the lifting mechanism is fixedly installed with discharge assembly, the crushing assembly and discharge assembly are located on the same vertical plane, the inner wall surface of the vending machine shell is equipped with limiting mechanism, the number of the limiting mechanism is two and is respectively located in the left and right two sides of vending machine shell, filter screen is slidably installed between the opposite surface of two limiting mechanism, the filter screen is slidably arranged close to the bottom surface of crushing assembly and the top surface of discharge assembly, the inner wall surface of the vending machine shell is fixedly installed with push mechanism, the number of the push mechanism is two and is symmetrically arranged in the front and rear inner side wall of vending machine shell, the bottom surface of the inner wall of the vending machine shell is fixedly installed with baffle, the crushing assembly and discharge assembly are located in the front side of baffle, the rear side of the inclined block is equipped with filter screen storage cabin and blocked filter screen collection cabin, the inside of the filter screen storage cabin is equipped with support assembly, the top surface of the filter screen storage cabin is fixedly installed with inclined block, the surface of the vending machine shell is fixedly installed with second electric push rod, the telescopic end of the second electric push rod is fixedly installed with storage mechanism, the telescopic end of the second electric push rod penetrates the surface of vending machine shell, the inner wall surface of the inlet is fixedly installed with sensor for identifying coffee bean variety, the surface of the baffle is equipped with through slot for accommodating filter screen movement.

[0009] Further, the rear surface of the vending machine shell is hingedly connected with a box door, and the surface of the box door is fixedly installed with a handle.

[0010] Further, the lifting mechanism includes a fixed block, the fixed block is fixedly installed on the side surface of the vending machine shell, the surface of the fixed block is provided with a first sliding groove, the top surface of the fixed block is fixedly installed with a first motor, the output end of the first motor is fixedly connected with a threaded rod, the threaded rod is rotatably installed on the inner wall surface of the first sliding groove, the inner wall surface of the vending machine shell is provided with a second sliding groove, the number of the second sliding groove is two and is symmetrically arranged on the left and right inner wall surfaces of the vending machine shell, the right second sliding groove penetrates the surface of the vending machine shell and is arranged in alignment with the first sliding groove, the inner wall surface of the second sliding groove is slidably installed with a connecting rod, the right connecting rod is threadedly sleeved on the surface of the threaded rod, the connecting rod is slidably installed on the inner wall surface of the first sliding groove, and the discharge assembly is fixedly installed between the opposite surfaces of the two connecting rods.

[0011] Further, the push mechanism includes a first electric push rod, the first electric push rod is fixedly installed on the surface of the vending machine shell, the telescopic end of the first electric push rod is fixedly installed with a push plate, and the telescopic end of the first electric push rod penetrates the surface of the vending machine shell.

[0012] Further, the limiting mechanism comprises electric telescopic rods, the electric telescopic rods are fixedly installed on the outer surface of the vending machine shell, the telescopic ends of the electric telescopic rods are arranged through the surface of the vending machine shell, the number of the electric telescopic rods is two and the electric telescopic rods are symmetrically arranged on the left and right sides of the vending machine shell, the telescopic end of the electric telescopic rod is fixedly installed with a limiting block, and the opposite surfaces of the two limiting blocks are both provided with third sliding grooves matched with the size of the filter screen.

[0013] Further, the supporting assembly comprises a supporting plate, the supporting plate is slidably installed on the inner wall surface of the filter screen storage cabin, and the spring is fixedly connected between the bottom surface of the filter screen storage cabin and the opposite surface of the supporting plate.

[0014] The beneficial effects of the present application are as follows: when the replacement time comes, the filter screen is pushed along the surface of the limiting mechanism to the surface of the inclined block through the front side pushing mechanism, the replaced filter screen can slide and fall into the inside of the clogged filter screen collecting cabin for storage due to the height difference of the surface of the inclined block, the front side pushing mechanism is reset, the discharge assembly is lowered by a certain height through the lifting mechanism, and the two limiting mechanisms are moved away from each other by a certain distance, so that enough space is left for the replacement of the filter screen, the filter screen stored in the filter screen storage cabin and supported by the supporting assembly is pushed forward and moves to the upper surface of the discharge assembly through the through slot in the surface of the partition plate through the pushing mechanism on the rear side, at this time, the discharge assembly and the filter screen are lifted up until the filter screen is closely attached to the bottom surface of the crushing assembly through the lifting mechanism, at this time, the two limiting mechanisms are moved towards each other until the two limiting mechanisms are closely attached to the two sides of the filter screen, the replacement of the filter screen is completed, the staff does not need to frequently disassemble the coffee vending machine, the replacement of the filter screen is realized automatically, time and manpower are saved, and the work efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the front view of the three-dimensional structure of the present application;

[0016] Figure 2 is the back view of the three-dimensional structure of the present application;

[0017] Figure 3 is the front view of the three-dimensional structure of the present application;

[0018] Figure 4 is the back view of the three-dimensional structure of the present application;

[0019] Mark No. : 1, vending machine shell; 2, feed inlet; 3, partition; 4, crushing assembly; 5, discharge assembly; 6, storage mechanism; 7, lifting mechanism; 701, fixed block; 702, first chute; 703, first motor; 704, threaded rod; 705, connecting rod; 706, second chute; 8, filter screen; 9, filter screen storage cabin; 10, clogged filter screen collection cabin; 11, pushing mechanism; 1101, first electric push rod; 1102, push plate; 12, limiting mechanism; 1201, limiting block; 1202, third chute; 1203, electric telescopic rod; 13, inclined block; 14, second electric push rod; 15, supporting assembly; 1501, supporting plate; 1502, spring. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0022] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", etc. are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0023] The electrical components appearing in this document are all electrically connected with the main controller and 220V mains from the outside, and the main controller can be a conventional known device such as a computer for control.

[0024] In the description of the embodiments of the present application, it should be noted that the directions or position relationships indicated by the terms "inner", "outer", "upper", etc. are based on the directions or position relationships shown in the drawings, or the directions or position relationships commonly placed when the product of the present application is used, which are only for the convenience of describing the present application and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular direction, be constructed and operated in a particular direction, and therefore cannot be understood as limiting the present application.

[0025] As Figures 1 to 4 shown in FIG. 1, a kind of material identification device of coffee vending machine, including vending machine shell 1, vending machine shell 1 top surface is fixedly installed with inlet 2, and the bottom surface of inlet 2 is fixedly installed with crushing assembly 4, and the inner wall surface of vending machine shell 1 is equipped with lifting mechanism 7, and the surface of lifting mechanism 7 is fixedly installed with discharge assembly 5, and crushing assembly 4 and discharge assembly 5 are located on the same vertical plane, and the inner wall surface of vending machine shell 1 is equipped with limiting mechanism 12, the number of limiting mechanism 12 is two and is respectively located at the left and right sides of vending machine shell 1, and the opposite surface between two limiting mechanisms 12 is slidably installed with filter screen 8, and filter screen 8 is slidably arranged close to the bottom surface of crushing assembly 4 and the top surface of discharge assembly 5, and the inner wall surface of vending machine shell 1 is fixedly installed with push mechanism 11, and the number of push mechanism 11 is two and is symmetrically arranged on the front and rear inner side walls of vending machine shell 1, and the bottom surface of the inner wall of vending machine shell 1 is fixedly installed with baffle 3, and crushing assembly 4 and discharge assembly 5 are located at the front side of baffle 3, and the rear side of inclined block 13 is equipped with filter screen storage cabin 9 and blocked filter screen collection cabin 10, the inside of filter screen storage cabin 9 is equipped with support assembly 15, the top surface of filter screen storage cabin 9 is fixedly installed with inclined block 13, the surface of vending machine shell 1 is fixedly installed with second electric push rod 14, and the telescopic end of second electric push rod 14 is fixedly installed with storage mechanism 6, and the telescopic end of second electric push rod 14 penetrates the surface of vending machine shell 1, the inner wall surface of inlet 2 is fixedly installed with sensor for identifying coffee bean variety, and the surface of baffle 3 is provided with through slot for accommodating the movement of filter screen 8.

[0026] Specifically, the filter screen 8 is arranged to be replaced periodically. When it is time to replace, the filter screen 8 is pushed along the surface of the limiting mechanism 12 to the surface of the inclined block 13 by the front pushing mechanism 11. Because there is a height difference on the surface of the inclined block 13, the replaced filter screen 8 can slide into the inside of the clogged filter screen collecting cabin 10 for storage. After the front pushing mechanism 11 is reset, the discharge assembly 5 is lowered by a certain height by the lifting mechanism 7, and the two limiting mechanisms 12 are moved away from each other by a certain distance to provide enough space for the replacement of the filter screen 8. The filter screen 8 stored in the filter screen storage cabin 9 and supported by the supporting assembly 15 is pushed forward and moves through the through slot on the surface of the partition 3 to the upper surface of the discharge assembly 5 by the rear pushing mechanism 11. At this time, the discharge assembly 5 and the filter screen 8 are lifted by the lifting mechanism 7 until the filter screen 8 is tightly attached to the bottom surface of the crushing assembly 4. At this time, the two limiting mechanisms 12 are moved towards each other until they are tightly attached to the two sides of the filter screen 8, and the replacement of the filter screen 8 is completed. The staff does not need to frequently disassemble the coffee vending machine, and the replacement of the filter screen 8 is automated. Different varieties of coffee beans are put into the crushing assembly 4 through the feed port 2 for grinding and crushing. At the same time, the sensor sends a signal to the external controller when it identifies the variety of coffee beans, and the corresponding position of the storage mechanism 6 is moved below the discharge assembly 5 by the second electric push rod 14. The ground coffee beans pass through the filter screen 8 and enter the discharge assembly 5, and then fall into the storage mechanism 6 for storage, which facilitates the automatic production and sale of coffee.

[0027] As shown in Figures 1 to 4 , the rear surface of the vending machine shell 1 is hinged with a box door, and the surface of the box door is fixedly installed with a handle.

[0028] Specifically, the rear surface of the vending machine shell 1 is provided with an openable box door, which facilitates the centralized taking and cleaning of the replaced filter screen 8 stored in the clogged filter screen collecting cabin 10, and facilitates the checking and supplementing of the number of clean filter screens 8 in the filter screen storage cabin 9.

[0029] As shown in Figures 1 to 4As shown, the lifting mechanism 7 comprises a fixed block 701 fixedly installed on the side surface of the vending machine shell 1, the surface of the fixed block 701 is provided with a first sliding groove 702, the top surface of the fixed block 701 is fixedly provided with a first motor 703, the output end of the first motor 703 is fixedly connected with a threaded rod 704, the threaded rod 704 is rotatably installed on the inner wall surface of the first sliding groove 702, the inner wall surface of the vending machine shell 1 is provided with a second sliding groove 706, the number of the second sliding grooves 706 is two and they are symmetrically arranged on the inner wall surfaces of the left and right sides of the vending machine shell 1, the right second sliding groove 706 penetrates the surface of the vending machine shell 1 and is arranged in alignment with the first sliding groove 702, the inner wall surface of the second sliding groove 706 is slidably provided with a connecting rod 705, the right connecting rod 705 is threadedly sleeved on the surface of the threaded rod 704, and the connecting rod 705 is slidably installed on the inner wall surface of the first sliding groove 702. The discharging assembly 5 is fixedly installed between the opposite surfaces of the two connecting rods 705.

[0030] Specifically, the rotation of the output end of the first motor 703 on the top surface of the fixed block 701 drives the threaded rod 704 to rotate, and in turn drives the connecting rod 705 which is threadedly sleeved on the surface of the threaded rod 704 and slidably installed on the surfaces of the first sliding groove 702 and the second sliding groove 706 to slide up and down, and in turn drives the discharging assembly 5 to move up and down, which facilitates the provision of space for the replacement of the filter screen 8 and is conducive to the automation of the replacement of the filter screen 8.

[0031] As shown in the figure, Figures 1 to 4 The pushing mechanism 11 comprises a first electric push rod 1101 fixedly installed on the surface of the vending machine shell 1, and a push plate 1102 fixedly installed on the telescopic end of the first electric push rod 1101. The telescopic end of the first electric push rod 1101 penetrates the surface of the vending machine shell 1.

[0032] Specifically, when the filter screen 8 needs to be replaced, the push plate 1102 is moved backward by the front first electric push rod 1101, and in turn pushes the filter screen 8 to slide backward along the surface of the limiting mechanism 12 until the filter screen 8 contacts the inclined block 13 and falls into the inside of the clogging filter screen collecting cabin 10. After the front push plate 1102 is reset, the push plate 1102 can be moved forward by the rear first electric push rod 1101, and in turn pushes the clean filter screen 8 stored in the filter screen storage cabin 9 to move forward until the filter screen 8 closely abuts against the top surface of the discharging assembly 5, which facilitates the automation of the replacement of the filter screen 8 and eliminates the need for workers to frequently disassemble the coffee vending machine, thereby saving time and effort and not damaging the service life of the coffee vending machine, and is conducive to the improvement of work efficiency.

[0033] As shown in the figure, Figures 1 to 4As shown, the limiting mechanism 12 comprises an electric telescopic rod 1203 fixedly installed on the outer surface of the vending machine shell 1, the telescopic end of the electric telescopic rod 1203 is provided through the surface of the vending machine shell 1, the number of the electric telescopic rod 1203 is two and symmetrically arranged on the left and right sides of the vending machine shell 1, the telescopic end of the electric telescopic rod 1203 is fixedly installed with a limiting block 1201, the opposite surfaces of the two limiting blocks 1201 are each provided with a third sliding groove 1202, and the third sliding groove 1202 is matched with the size of the filter screen 8.

[0034] Specifically, when the filter screen 8 needs to be replaced, the filter screen 8 can be pushed by the pushing mechanism 11 to slide along the inner wall surface of the third sliding groove 1202 to the surface of the inclined block 13, after the front pushing mechanism 11 is reset, the limiting block 1201 is driven by the electric telescopic rod 1203 to move away, leaving enough space for the replacement of the filter screen 8, when the lifting mechanism 7 drives the discharge assembly 5 and the filter screen 8 to rise until they are close to the bottom surface of the crushing assembly 4, the limiting block 1201 is driven by the electric telescopic rod 1203 to move towards until the filter screen 8 is close to the inner wall surface of the third sliding groove 1202, which plays a limiting and fixing role on the filter screen 8, preventing the filter screen 8 from falling off during the use of the coffee vending machine, and making the structure more stable.

[0035] As shown, Figures 1 to 4 The support assembly 15 comprises a support plate 1501 slidably installed on the inner wall surface of the filter screen storage cabin 9, and a spring 1502 fixedly connected between the bottom surface of the filter screen storage cabin 9 and the opposite surface of the support plate 1501.

[0036] Specifically, the support plate 1501 and the top surface of the filter screen storage cabin 9 can be used to store clean filter screens 8, when the uppermost filter screen 8 is pushed away by the pushing mechanism 11, the support plate 1501 is subjected to an upward force due to the elastic force of the spring 1502, so that the accumulated filter screens 8 can be pushed to the upper side until the uppermost filter screen 8 is tightly attached to the top surface of the filter screen storage cabin 9, when it is necessary to supplement the filter screens 8 in the filter screen storage cabin 9, the filter screens 8 to be supplemented can be placed above the support plate 1501 by pressing the support plate 1501, and the elastic restoring force of the spring 1502 can support the filter screens 8 when the support plate 1501 is released, the number of filter screens 8 stored in the filter screen storage cabin 9 is several, and it is not necessary for the staff to frequently supplement clean filter screens 8 into the filter screen storage cabin 9, which is conducive to improving work efficiency.

[0037] In summary: when the replacement time comes, the filter screen 8 is pushed along the surface of the limiting mechanism 12 to the surface of the inclined block 13 by the front pushing mechanism 11, and the replaced filter screen 8 can slide into the clogging filter screen collecting cabin 10 and be stored due to the height difference of the surface of the inclined block 13; after the front pushing mechanism 11 is reset, the discharge assembly 5 is lowered by a certain height by the lifting mechanism 7, and the two limiting mechanisms 12 are moved away from each other by a certain distance, so as to provide enough space for the replacement of the filter screen 8; the filter screen 8 stored in the filter screen storage cabin 9 and supported by the supporting assembly 15 is pushed forward and moves to the upper surface of the discharge assembly 5 through the through slot on the surface of the partition 3 by the rear pushing mechanism 11; at this time, the discharge assembly 5 and the filter screen 8 are lifted by the lifting mechanism 7 until the filter screen 8 is close to the bottom surface of the crushing assembly 4; at this time, the two limiting mechanisms 12 are moved towards each other until they are tightly attached to the two sides of the filter screen 8, and the replacement of the filter screen 8 is completed, so that the staff does not need to frequently disassemble the coffee vending machine, the replacement of the filter screen 8 is realized automatically, time and manpower are saved, and the work efficiency is improved.

[0038] The basic principle, main characteristics and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only the principles of the utility model; various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope required by the utility model is defined by the appended claims and their equivalents.

Claims

1. A material identifying device of a coffee vending machine, characterized in that, Including the vending machine shell (1), the vending machine shell (1) top surface is fixedly installed with a feed inlet (2), the feed inlet (2) bottom surface is fixedly installed with a crushing assembly (4), the vending machine shell (1) inner wall surface is equipped with a lifting mechanism (7), the lifting mechanism (7) surface is fixedly installed with a discharge assembly (5), the crushing assembly (4) and discharge assembly (5) are located on the same vertical plane, the vending machine shell (1) inner wall surface is equipped with a limiting mechanism (12), the limiting mechanism (12) is two and is respectively located on the left and right sides of the vending machine shell (1), the opposite surface of the two limiting mechanisms (12) is slidably installed with a filter screen (8), the filter screen (8) is slidably arranged on the bottom surface of the crushing assembly (4) and the top surface of the discharge assembly (5), the vending machine shell (1) inner wall surface is fixedly installed with a pushing mechanism (11), the pushing mechanism (11) is two and is symmetrically arranged on the front and rear inner walls of the vending machine shell (1), the vending machine shell (1) inner wall bottom surface is fixedly installed with a partition (3), the crushing assembly (4) and discharge assembly (5) are located on the front side of the partition (3), the filter screen storage cabin (9) and the filter screen collection cabin (10) are arranged on the rear side of the inclined block (13), the filter screen storage cabin (9) is internally provided with a supporting assembly (15), the filter screen storage cabin (9) top surface is fixedly installed with an inclined block (13), the vending machine shell (1) surface is fixedly installed with a second electric push rod (14), the second electric push rod (14) telescopic end is fixedly installed with a storage mechanism (6), the second electric push rod (14) telescopic end penetrates the vending machine shell (1) surface, the feed inlet (2) inner wall surface is fixedly installed with a sensor for identifying coffee bean varieties, the partition (3) surface is provided with a through slot for accommodating the movement of the filter screen (8).

2. A material recognition device for a coffee vending machine according to claim 1, characterized in that, The rear surface of the vending machine shell (1) is hingedly connected with a box door, and the surface of the box door is fixedly installed with a handle.

3. A material identifying device for a coffee vending machine according to claim 1, wherein The lifting mechanism (7) includes a fixed block (701) fixedly installed on the side of the vending machine shell (1), a first sliding groove (702) is opened on the surface of the fixed block (701), a first motor (703) is fixedly installed on the top surface of the fixed block (701), a threaded rod (704) is fixedly connected to the output end of the first motor (703), the threaded rod (704) is rotatably installed on the inner wall surface of the first sliding groove (702), a second sliding groove (706) is opened on the inner wall surface of the vending machine shell (1), the number of the second sliding groove (706) is two and symmetrically arranged on the left and right inner wall surfaces of the vending machine shell (1), the right second sliding groove (706) penetrates the surface of the vending machine shell (1) and is arranged in alignment with the first sliding groove (702), a connecting rod (705) is slidably installed on the inner wall surface of the second sliding groove (706), the right connecting rod (705) is threadedly sleeved on the surface of the threaded rod (704), and the connecting rod (705) is slidably installed on the inner wall surface of the first sliding groove (702). The discharge assembly (5) is fixedly installed between the opposite surfaces of the two connecting rods (705).

4. A material identifying device for a coffee vending machine according to claim 1, wherein The pushing mechanism (11) includes a first electric push rod (1101), the first electric push rod (1101) is fixedly installed on the surface of the vending machine shell (1), the telescopic end of the first electric push rod (1101) is fixedly installed with a push plate (1102), and the telescopic end of the first electric push rod (1101) penetrates the surface of the vending machine shell (1).

5. A material identifying device for a coffee vending machine according to claim 1, wherein The limiting mechanism (12) includes an electric telescopic rod (1203), the electric telescopic rod (1203) is fixedly installed on the outer surface of the vending machine shell (1), the telescopic end of the electric telescopic rod (1203) penetrates the surface of the vending machine shell (1), the number of the electric telescopic rod (1203) is two and symmetrically arranged on the left and right sides of the vending machine shell (1), the telescopic end of the electric telescopic rod (1203) is fixedly installed with a limiting block (1201), the opposite surfaces of the two limiting blocks (1201) are both provided with a third sliding groove (1202), and the third sliding groove (1202) is matched with the size of the filter screen (8).

6. A material identification device for a coffee vending machine according to claim 1, characterized in that, The supporting assembly (15) includes a supporting plate (1501), the supporting plate (1501) is slidably installed on the inner wall surface of the filter screen storage cabin (9), and the spring (1502) is fixedly connected between the bottom surface of the filter screen storage cabin (9) and the opposite surface of the supporting plate (1501).

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