Conveying device

Abstract

The utility model relates to a conveying device, and relates to the field of sorting equipment. The utility model provides a conveying device which comprises a first feeding mechanism, a second feeding mechanism and a limiting structure. The limiting structure is arranged between the first feeding mechanism and the second feeding mechanism and comprises a first limiting face and a second limiting face, the first limiting face and the second limiting face are arranged on the two side edges of the second feeding mechanism respectively, and the first limiting face, the second limiting face and the second feeding mechanism form a buffer space. By arranging the second feeding mechanism and the limiting structure, the first limiting face, the second limiting face and the second feeding mechanism form a buffer space, materials enter the buffer space from the discharging end of the first feeding mechanism, and the second feeding mechanism can conduct forward conveying or reverse conveying according to the stacking condition of the materials; the buffering space is released or compressed, it is guaranteed that the second feeding mechanism keeps outputting a certain amount of materials, meanwhile, the materials are protected, and the situation that the materials are excessively extruded due to accumulation is avoided.

Description

Technical Field

[0001] The utility model relates to the field of sorting equipment, and more specifically, to a conveying device. Background Art

[0002] Currently, after fruits and vegetables are picked, they will go through a sorting process and a weighing and packaging process, and then flow into the market for sale. With the development of agricultural mechanization equipment technology, in order to meet the needs of the fast-paced market and reduce the labor cost of sorting and packaging, the use of automated equipment for packaging and sorting has been promoted.

[0003] The inventor has found through research that in the process of automation, a sorting machine is generally used in the sorting process; after the sorting machine has completed sorting, the sorted qualified fruits and vegetables will be conveyed to the next device through a conveying device. However, during the process of the conveying device transporting the fruits and vegetables to the next device, once the fruits and vegetables are stacked, they will be overly squeezed between each other, resulting in damage to the fruits and vegetables and affecting their quality. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a conveying device, which has a buffer space that can buffer materials to avoid excessive squeezing due to material stacking.

[0005] The embodiments of the utility model are implemented as follows:

[0006] The utility model provides a conveying device, including a first feeding mechanism, a second feeding mechanism, and a limiting structure; both the first feeding mechanism and the second feeding mechanism are used for conveying materials, the first feeding mechanism is located above the second feeding mechanism and the discharging end of the first feeding mechanism is located above the conveying section of the second feeding mechanism; the limiting structure is arranged between the first feeding mechanism and the second feeding mechanism, the limiting structure includes a first limiting surface and a second limiting surface, the first limiting surface and the second limiting surface are respectively arranged on two sides of the second feeding mechanism, and the first limiting surface and the second limiting surface form a buffer space with the second feeding mechanism.

[0007] Through the above technical features, by setting the second feeding mechanism and the limiting structure, the first limiting surface and the second limiting surface form a buffer space with the second feeding mechanism. Materials enter the buffer space from the discharging end of the first feeding mechanism. The second feeding mechanism has a conveying function and can convey forward or backward according to the stacking situation of the materials, thereby releasing or compressing the buffer space, ensuring that a certain amount of materials are output at the discharging end of the second feeding mechanism, and protecting the materials to avoid excessive squeezing due to material stacking.

[0008] Optionally, the conveying device further includes a first sensor for identifying the material, and the first sensor is disposed at the bottom of the discharge end of the first feeding mechanism.

[0009] With the above technical features, the first sensor is used to identify the material at the discharge end of the conveying device.

[0010] Optionally, the conveying device further includes a second sensor for identifying the material, and the second sensor is disposed at the discharge end of the second feeding mechanism.

[0011] With the above technical features, the second sensor is used to identify the material in the buffer space. The first sensor and the second sensor can cooperate with the second feeding mechanism for forward or reverse conveying, thereby avoiding material accumulation or retention.

[0012] Optionally, the conveying device further includes an openable and closable baffle structure, and the baffle structure is disposed between the first feeding mechanism and the second feeding mechanism and is openable and closable relative to the second feeding mechanism; the baffle structure is located in the conveying section of the second feeding mechanism and does not exceed the discharge end of the first feeding mechanism.

[0013] With the above technical features, the openable and closable baffle structure is used to cooperate with the second feeding mechanism for forward or reverse conveying: the baffle structure rotates reversely relative to the discharge port of the second feeding mechanism to increase the area of the buffer space, enabling it to temporarily buffer more materials; or, the baffle structure rotates reversely relative to the discharge port of the second feeding mechanism to release the materials in the buffer space.

[0014] Optionally, the baffle structure includes a first mounting frame and a baffle, and the baffle is rotatably connected to the first mounting frame; a third sensor for identifying the baffle is provided on the first mounting frame.

[0015] With the above technical features, the third sensor is used to identify the baffle to ensure that the baffle rotates in place.

[0016] Optionally, the conveying device further includes a guiding structure, and the guiding structure is disposed at the discharge end of the first feeding mechanism; the guiding structure includes an arc-shaped guiding surface, and the arc-shaped guiding surface faces the discharge end of the first feeding mechanism.

[0017] With the above technical features, the guiding structure is used to guide the material.

[0018] Optionally, both the first limiting surface and the second limiting surface are disposed at an angle with the horizontal plane of the second feeding mechanism, and the angle is 90° to 150°.

[0019] Through the above technical features, both the first limiting surface and the second limiting surface are arranged at an angle with the horizontal plane of the second feeding mechanism to meet sudden demands and ensure that the buffer space can temporarily store more materials.

[0020] Optionally, the limiting structure includes a second mounting bracket, and a first limiting member and a second limiting member arranged on both sides of the second mounting bracket. The first limiting member sets the first limiting surface, and the second limiting member sets the second limiting surface;

[0021] The first limiting member includes a limiting plate or a belt conveyor;

[0022] The second limiting member includes a limiting plate or a belt conveyor.

[0023] Through the above technical features, the first limiting surface of the first limiting member and the second limiting surface of the second limiting member form a buffer space with the second feeding mechanism; when materials are stacked, the first limiting member and the second limiting member can assist in buffering the materials and prevent the materials from falling; when the second feeding mechanism conveys the materials forward or backward, the first limiting member and the second limiting member can assist in conveying the materials.

[0024] Optionally, the conveying device further includes an output mechanism, and the output mechanism is arranged at the discharging end of the second feeding mechanism.

[0025] Optionally, the conveying device further includes a transition structure. The feeding end of the transition structure is arranged at the discharging end of the second feeding mechanism, and the discharging end of the transition structure is arranged at the feeding end of the output mechanism.

[0026] Through the above technical features, when there is a situation where the second feeding mechanism and the output mechanism are not at the same height or are far apart, a transition structure is arranged between the second feeding mechanism and the output mechanism to assist in conveying the materials.

[0027] The beneficial effects of the embodiments of the present utility model are:

[0028] In this conveying device, by setting the first feeding mechanism, materials enter from the feeding end of the first feeding mechanism and enter the buffer space from the discharging end; by setting the second feeding mechanism and the limiting structure, the first limiting surface and the second limiting surface form a buffer space with the second feeding mechanism. Materials enter the buffer space from the discharging end of the first feeding mechanism. The second feeding mechanism has a conveying function and can convey forward or backward according to the stacking situation of the materials, thereby releasing or compressing the buffer space, ensuring that a certain amount of materials are output at the discharging end of the second feeding mechanism, and protecting the materials to avoid being overly squeezed due to material stacking. Description of the Drawings

[0029] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following accompanying drawings only show some embodiments of the present utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related accompanying drawings can also be obtained based on these drawings.

[0030] Figure 1 Structural schematic diagram of the conveying device according to the embodiment of the present utility model;

[0031] Figure 2 Front view of the conveying device according to the embodiment of the present utility model;

[0032] Figure 3 Top view of the conveying device according to the embodiment of the present utility model;

[0033] Figure 4 Side view of the conveying device according to the embodiment of the present utility model;

[0034] Figure 5 Schematic diagram of the conveying device according to the embodiment of the present utility model.

[0035] Icons: 010 - conveying device; 011 - equipment frame; 012 - buffer space; 100 - first feeding mechanism; 110 - first sensor; 120 - guiding structure; 121 - side plate; 122 - arc-shaped guiding plate; 200 - second feeding mechanism; 210 - second sensor; 300 - limiting structure; 310 - first limiting member; 311 - first limiting surface; 320 - second limiting member; 321 - second limiting surface; 330 - baffle structure; 331 - first mounting bracket; 332 - baffle; 400 - output mechanism; 500 - transition structure. Specific embodiments

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Generally, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0038] It should be noted that like reference numerals and letters refer to like items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0040] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0041] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0042] The present utility model provides a conveying device 010, which has a buffer space 012 and can prevent materials from accumulating and being overly squeezed.

[0043] Please refer to Figure 1, a conveying device 010 proposed by the present utility model includes a first feeding mechanism 100, a second feeding mechanism 200, and a limiting structure 300; both the first feeding mechanism 100 and the second feeding mechanism 200 are used for conveying materials. The first feeding mechanism 100 is located above the second feeding mechanism 200, and the discharging end of the first feeding mechanism 100 is located above the conveying section of the second feeding mechanism 200; the limiting structure 300 is arranged between the first feeding mechanism 100 and the second feeding mechanism 200. The limiting structure 300 includes a first limiting surface 311 and a second limiting surface 321. The first limiting surface 311 and the second limiting surface 321 are respectively arranged on both sides of the second feeding mechanism 200, and the first limiting surface 311, the second limiting surface 321 and the second feeding mechanism 200 form a buffer space 012.

[0044] It can be understood that by setting the first feeding mechanism 100, materials enter from the feeding end of the first feeding mechanism 100 and enter the buffer space 012 from the discharging end; by setting the second feeding mechanism 200 and the limiting structure 300, the first limiting surface 311, the second limiting surface 321 and the second feeding mechanism 200 form a buffer space 012. Materials enter the buffer space 012 from the discharging end of the first feeding mechanism 100. The second feeding mechanism 200 has a conveying function. The second feeding mechanism 200 can convey forward or backward according to the stacking situation of the materials, thereby releasing or compressing the buffer space 012, ensuring that a certain amount of materials are output at the discharging end of the second feeding mechanism 200, and protecting the materials to avoid being overly squeezed due to material stacking.

[0045] Please refer to Figure 5 , in this embodiment, the conveying device 010 includes an equipment frame 011.

[0046] Among them, the equipment frame 011 is assembled by a plurality of steel frames and is used to install various components on the conveying device 010.

[0047] Please refer to Figures 1-4 , in this embodiment, the conveying device 010 includes a first feeding mechanism 100.

[0048] Among them, the first feeding mechanism 100 includes a feeding end, a discharging end, and a conveying section formed between the feeding end and the discharging end.

[0049] In this embodiment, the first feeding mechanism 100 is a belt conveyor. The belt conveyor includes a first frame, a first conveyor belt arranged on the first frame, two first belt rollers, and a first transmission device. Among them, the first frame is fixed to the equipment frame 011, and the first transmission device is connected to one of the first belt rollers in a transmission manner, thereby driving the first conveyor belt to convey materials.

[0050] Of course, in other embodiments, the first feeding mechanism 100 can also be a chain mesh conveyor, a chain plate conveyor, or a roller conveyor line.

[0051] Please refer to Figure 4 , in this embodiment, the conveying device 010 includes a first sensor 110.

[0052] Among them, the first sensor 110 is used to identify the material. The first sensor 110 is arranged at the bottom of the discharge end of the first feeding mechanism 100, specifically for identifying the material in the buffer space 012.

[0053] Optionally, the first sensor 110 is a photoelectric sensor.

[0054] Please refer to Figures 1-4 , in this embodiment, the conveying device 010 includes a guiding structure 120.

[0055] In this embodiment, the guiding structure 120 is arranged at the discharge end of the first feeding mechanism 100; the guiding structure 120 includes an arc-shaped guiding surface, and the arc-shaped guiding surface faces the discharge end of the first feeding mechanism 100. It can be understood that the arc-shaped guiding surface limits and conveys the material, and conveys the material onto the second feeding mechanism 200 to prevent the material from falling.

[0056] In this embodiment, please refer to Figure 1 , the guiding mechanism includes a guiding bracket, side plates 121, and an arc-shaped guiding plate 122. The inner arc surface of the arc-shaped guiding plate 122 is the arc-shaped guiding surface. The two sides of the arc-shaped guiding plate 122 are welded with side plates 121, and both side plates 121 are connected to the guiding bracket; the guiding bracket is fixed to the equipment frame 011 and is located at the discharge end of the first feeding mechanism 100.

[0057] Please refer to Figures 1-4 , in this embodiment, the conveying device 010 includes a second feeding mechanism 200.

[0058] Among them, the second feeding mechanism 200 includes a feeding end, a discharge end, and a conveying section formed between the feeding end and the discharge end. The discharge end of the first feeding mechanism 100 is located above the conveying section of the second feeding mechanism 200 so that the material can enter the buffer space 012.

[0059] In this embodiment, the second feeding mechanism 200 is a belt conveyor, and the second belt conveyor includes a second machine frame, a second conveyor belt arranged on the second frame, two second belt rollers, and a second transmission device. Among them, the second machine frame is fixed to the equipment machine frame 011, and the second transmission device is connected to one of the second belt rollers in a transmission manner; the second transmission device can drive the second belt roller to make the second conveyor belt rotate forward to convey materials or rotate backward to cache materials, so that the second feeding mechanism 200 can achieve forward conveying or backward conveying.

[0060] Of course, in other embodiments, the second feeding mechanism 200 can also be a chain mesh conveyor, a chain plate conveyor, or a roller conveyor line.

[0061] Please refer to Figures 1-4 , in this embodiment, the conveying device 010 includes an output mechanism 400.

[0062] Among them, the feeding end of the output mechanism 400 is arranged at the discharging end of the second feeding mechanism.

[0063] Optionally, the output mechanism 400 can be a belt conveyor, a chain mesh conveyor, a chain plate conveyor, or a roller conveyor line.

[0064] Please refer to Figure 5 , in this alternative embodiment, when there is a situation where the second feeding mechanism 200 and the output mechanism 400 are not at the same height or are far apart, etc., the conveying device 010 can also include a transition structure 500. Among them, the transition structure 500 is inclined and fixed to the equipment machine frame 011, then the feeding end of the transition structure 500 is arranged at the discharging end of the second feeding mechanism 200, and the discharging end of the transition structure 500 is arranged at the feeding end of the output mechanism 400.

[0065] Optionally, the transition structure 500 can be a transition plate structure, a belt conveyor, or other structures.

[0066] Please refer to Figure 4 , in this embodiment, the conveying device 010 includes a second sensor 210.

[0067] In this embodiment, the second sensor 210 is used to identify materials, and the second sensor 210 is arranged at the output mechanism 400. Of course, in other embodiments, it can also be directly arranged at the discharging end of the second feeding mechanism 200.

[0068] Optionally, the second sensor 210 is a photoelectric sensor.

[0069] Please refer to Figures 1-4 , in this embodiment, the conveying device 010 includes a limiting structure 300.

[0070] Among them, the limiting structure 300 is arranged between the first feeding mechanism 100 and the second feeding mechanism 200. The limiting structure 300 includes a first limiting surface 311 and a second limiting surface 321. The first limiting surface 311 and the second limiting surface 321 are respectively arranged on two sides of the second feeding mechanism 200. The first limiting surface 311, the second limiting surface 321 and the second feeding mechanism 200 form a buffer space 012.

[0071] Optionally, please refer to Figure 4 , both the first limiting surface 311 and the second limiting surface 321 are arranged at an angle with the horizontal plane of the second feeding mechanism 200, and the angle is 90° - 150°. Among them, the preferred angle is 120°.

[0072] In this embodiment, the limiting structure 300 includes a second mounting frame, and a first limiting member 310 and a second limiting member 320 arranged on both sides of the second mounting frame. The second mounting frame is fixed to the equipment frame 011. Among them, the first limiting member 310 is provided with the first limiting surface 311, and the first limiting member 310 is inclined with the second mounting frame so that the first limiting surface 311 of the first limiting member 310 is arranged at 120° with the second feeding mechanism 200. Among them, the second limiting member 320 is provided with the second limiting surface 321, and the second limiting member 320 is inclined with the second mounting frame so that the second limiting surface of the second limiting member 320 is arranged at 120° with the second feeding mechanism 200.

[0073] It can be understood that, please refer to Figure 1 , the first limiting surface 311 of the first limiting member 310 and the second limiting surface 321 of the second limiting member 320 and the second feeding mechanism 200 form a buffer space 012. When the materials are stacked, the first limiting member 310 and the second limiting member 320 can assist in buffering the materials and prevent the materials from falling. When the second feeding mechanism 200 conveys the materials forward or backward, the first limiting member 310 and the second limiting member 320 can assist in conveying the materials.

[0074] In this embodiment, the first limiting member 310 includes a first limiting belt conveyor. The first limiting belt conveyor includes a third frame, a third conveyor belt arranged on the third frame, two third belt rollers, and a third transmission device. The conveying surface of the third conveyor belt is the first limiting surface 311. Among them, the third frame is fixed to the second mounting frame and is arranged at an angle with the equipment frame 011. The third transmission device is connected to one of the third belt rollers in a transmission manner, and the third transmission device can drive the third belt roller to make the third conveyor belt rotate forward to assist in transmitting the materials or rotate backward to assist in buffering the materials, so as to assist the second feeding mechanism 200 in forward or backward conveying.

[0075] Of course, in other embodiments, the first limiting member 310 includes a first limiting plate, and the inner side surface of the first limiting plate is the first limiting surface 311.

[0076] In this embodiment, the second limiting member 320 includes a fourth limiting belt conveyor; the fourth limiting belt conveyor includes a fourth frame and a fourth conveyor belt, two fourth belt rollers, and a fourth transmission device disposed on the fourth frame. The conveying surface of the fourth conveyor belt is the second limiting surface 321. Among them, the fourth frame is fixed to the second mounting frame and is disposed at an angle with the equipment frame 011; the fourth transmission device is transmission-connected to one of the fourth belt rollers, and the fourth transmission device can drive the fourth belt roller to rotate the fourth conveyor belt forward to assist in transporting materials or rotate it backward to assist in caching materials, so as to assist the second feeding mechanism 200 in forward or backward conveying.

[0077] Of course, in other embodiments, the second limiting member 320 includes a second limiting plate, and the inner side surface of the second limiting plate is the second limiting surface 321.

[0078] Please refer to Figures 1-4 , in this embodiment, the conveying device 010 includes a baffle structure 330.

[0079] Among them, the baffle structure 330 is arranged to be openable and closable relative to the conveying section of the second feeding mechanism 200; the baffle structure 330 is disposed between the first feeding mechanism 100 and the second feeding mechanism 200 and is openable and closable relative to the second feeding mechanism 200; the baffle structure 330 is located at the conveying section of the second feeding mechanism 200 and does not exceed the discharge end of the first feeding mechanism 100.

[0080] It can be understood that after the material enters the buffer space 012 from the discharge end of the first feeding mechanism 100. The baffle structure 330 will, according to the recognition situation of the sensor: rotate reversely relative to the discharge port of the second feeding mechanism 200 to increase the area of the buffer space 012 so that it can temporarily cache more materials; or, rotate reversely relative to the discharge port of the second feeding mechanism 200 to release the materials in the buffer space 012.

[0081] In this embodiment, please refer to Figure 1 , the baffle structure 330 includes a first mounting frame 331 and a baffle 332. The first mounting frame 331 is fixed to the equipment frame 011 and is perpendicular to the conveying direction of the second feeding mechanism 200; among them, the baffle 332 is vertically disposed above the second feeding mechanism 200, and the baffle 332 is rotatably connected to the first mounting frame 331; a third sensor for recognizing the baffle 332 is provided on the first mounting frame 331.

[0082] It is understandable that the baffle 332 can rotate relative to the first mounting bracket 331, and the baffle 332 stops rotating after rotating until it is recognized by the third sensor.

[0083] The working principle of the conveying device 010 proposed in this embodiment is as follows:

[0084] The material enters from the feeding end of the first feeding mechanism 100 and is output from the discharging end of the first feeding mechanism 100; the material is guided and conveyed to the buffer space 012 after passing through the arc-shaped guiding surface of the guiding structure 120.

[0085] When the material enters the buffer space 012 from the discharging end of the first feeding mechanism 100, as the material accumulates in the buffer space 012, a part of the material will be conveyed to the output mechanism 400 through the transition structure 500, and the output mechanism 400 outputs the material.

[0086] Among them, when both the first sensor 110 and the second sensor 210 recognize the material, the baffle structure 330 rotates synchronously in the opposite direction to the discharging end of the second feeding mechanism 200. At the same time, the first limiting member 310, the second limiting member 320, and the second feeding mechanism 200 all rotate in the reverse direction synchronously to convey the material into the buffer space 012 to prevent the material from accumulating at the discharging end.

[0087] Among them, when the first sensor 110 recognizes the material and the second sensor 210 does not recognize the material, the baffle structure 330, the first limiting member 310, the second limiting member 320, and the second feeding mechanism 200 all rotate synchronously in the direction of the discharging end of the second feeding mechanism 200 to output the material inside the buffer space 012; at the same time, the baffle 332 stops rotating until the second sensor 210 recognizes the material or the third sensor is triggered.

[0088] Among them, when the first sensor 110 does not recognize the material and the second sensor 210 recognizes the material, the baffle structure 330, the first limiting member 310, the second limiting member 320, and the second feeding mechanism 200 all rotate synchronously in the direction of the discharging end of the second feeding mechanism 200 to output the material synchronously to prevent the material from accumulating; at the same time, the baffle 332 stops rotating until the second sensor 210 recognizes the material or the third sensor is triggered.

[0089] Among them, when neither the first sensor 110 nor the second sensor 210 recognizes the material, the baffle structure 330, the first limiting member 310, the second limiting member 320, and the second feeding mechanism 200 all rotate synchronously in the direction of the discharging end of the second feeding mechanism 200 to output the material synchronously to prevent the material from staying in the conveying device 010; at the same time, the baffle 332 stops rotating until the second sensor 210 recognizes the material or the third sensor is triggered.

[0090] In summary, for the conveying device 010, by providing the first feeding mechanism 100, materials enter from the feeding end of the first feeding mechanism 100 and enter the buffer space 012 from the discharging end; by providing the second feeding mechanism 200 and the limiting structure 300, the first limiting surface 311 and the second limiting surface 321 form the buffer space 012 with the second feeding mechanism 200. Materials enter the buffer space 012 from the discharging end of the first feeding mechanism 100. The second feeding mechanism 200 has a conveying function and can convey forward or backward according to the stacking condition of the materials, so as to release or compress the buffer space 012, ensure that a certain amount of materials are output from the discharging end of the second feeding mechanism 200, and protect the materials to avoid being excessively squeezed due to material stacking.

[0091] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A conveying device, characterized in that: include: First feeding mechanism; A second feeding mechanism, wherein the first feeding mechanism and the second feeding mechanism are both used for conveying materials, the first feeding mechanism is located above the second feeding mechanism and the discharge end of the first feeding mechanism is located above the conveying section of the second feeding mechanism; A limiting structure, wherein the limiting structure is arranged between the first feeding mechanism and the second feeding mechanism, the limiting structure comprises a first limiting surface and a second limiting surface, the first limiting surface and the second limiting surface are respectively arranged on two side edges of the second feeding mechanism, and the first limiting surface and the second limiting surface form a buffer space with the second feeding mechanism.

2. The conveying device according to claim 1, characterized in that The conveying device also includes a first sensor for identifying the material, and the first sensor is arranged at the bottom of the discharge end of the first feeding mechanism.

3. The conveying device according to claim 1, characterized in that: The conveying device also includes a second sensor for identifying the material, and the second sensor is arranged at the discharge end of the second feeding mechanism.

4. The conveying device according to claim 1, characterized in that The conveying device further comprises an openable and closable baffle structure, wherein the baffle structure is arranged between the first feeding mechanism and the second feeding mechanism and can be opened and closed relative to the second feeding mechanism; The baffle structure is located in the conveying section of the second feeding mechanism and does not exceed the discharge end of the first feeding mechanism.

5. The conveying device according to claim 4, characterized in that: The baffle structure comprises a first mounting frame and a baffle, wherein the baffle is rotatably connected to the first mounting frame; The first mounting frame is provided with a third sensor for identifying the baffle.

6. The conveying device according to claim 1, characterized in that: The conveying device further comprises a guide structure, and the guide structure is arranged at the discharge end of the first feeding mechanism; The guide structure comprises an arc-shaped guide surface, and the arc-shaped guide surface faces the discharge end of the first feeding mechanism.

7. The conveying device according to claim 1, characterized in that The first limiting surface and the second limiting surface are both arranged at an angle with the horizontal plane of the second feeding mechanism, and the angle is 90° to 150°.

8. The conveying device according to claim 1, characterized in that: The limiting structure includes a second mounting frame and a first limiting member and a second limiting member arranged on both sides of the second mounting frame, the first limiting member is provided with the first limiting surface, and the second limiting member is provided with the second limiting surface; The first limiting member includes a limiting plate or a belt conveyor; The second limiting member includes a limiting plate or a belt conveyor.

9. The conveying device according to claim 1, characterized in that: The conveying device further comprises an output mechanism, and the output mechanism is arranged at the discharge end of the second feeding mechanism.

10. The conveying device according to claim 9, characterized in that The conveying device further comprises a transition structure, wherein a feed end of the transition structure is arranged at a discharge end of the second feed mechanism, and a discharge end of the transition structure is arranged at a feed end of the output mechanism.

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