Material external circulation feeding device

Abstract

This utility model provides a material external circulation feeding device, relating to the technical field of feeding mechanisms. It includes a vibrating disc structure and a feeding structure. The discharge port of the vibrating disc structure corresponds to that of the feeding structure, and the vibrating disc structure is used to feed material to the feeding structure. The feeding structure includes a feeding component, a support frame, and a second vibrating element. The feeding component is connected to the second vibrating element through the support frame. The feeding component includes a material sorting component and a sorting component. The material sorting component is used to distribute the large or small end of the material body along the feeding direction of the feeding component. The sorting component corresponds to the discharge end of the material sorting component, and the sorting component is used to screen out the material body with the small end facing upwards and convey it to the feeding end. This utility model alleviates the technical problem in the prior art where vibrating disc feeding often fails to screen out materials with one large end and the other small end facing upwards during the feeding process, thus causing inconvenience in subsequent gripping and processing.

Description

Technical Field

[0001] This utility model relates to the technical field of feeding mechanisms, and in particular to a material external circulation feeding device. Background Technology

[0002] The feeding mechanism is the initial stage of production equipment or assembly line, involving various industries and exhibiting diverse types and complex styles. This has led to the development of various feeding mechanisms. Their ultimate purpose is to supply the required materials to the entire machine according to the direction and path required by the equipment, thus serving subsequent production. An excellent feeding mechanism can effectively improve production efficiency and reduce production costs.

[0003] The most common feeding method nowadays is vibratory feeder feeding. Combining the characteristics of the materials and the needs of the equipment, vibratory feeders can meet the vast majority of feeding needs and are currently the most widely used feeding method.

[0004] However, existing vibratory feeder devices are not convenient for distributing and feeding materials with the small end facing upwards when feeding materials with one large end and the other small end. This makes it easy for the material to tip over or have the small end facing downwards during transportation, causing inconvenience for subsequent clamping and processing. Utility Model Content

[0005] The purpose of this utility model is to provide a material external circulation feeding device to alleviate the technical problem in the prior art that the material fed by the vibrating plate often cannot be screened out when the material with one end being large and the other end being small, resulting in inconsistent material feeding status and subsequent inconvenience in gripping and processing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: In a first aspect, this utility model provides a material external circulation feeding device, including a vibrating disc structure and a feeding structure, wherein the discharge port of the vibrating disc structure corresponds to the feeding structure, and the vibrating disc structure is used to feed material to the feeding structure; The feeding structure includes a feeding assembly, a support frame, and a second vibrating element, wherein the feeding assembly is connected to the second vibrating element through the support frame; The feeding assembly includes a material handling component and a sorting component. The material handling component is used to distribute the large end or small end of the material body along the feeding direction of the feeding assembly. The sorting component corresponds to the discharge end of the material handling component, and the sorting component is used to screen out the material body with the small end facing upward and convey it to the feeding end.

[0007] Furthermore, the feeding assembly also includes a material separating component; The material distribution component is provided with multiple spaced material distribution channels, one end of each of the multiple material distribution channels corresponding to the material outlet; The material handling component is provided with multiple spaced material handling channels, and each of the multiple material handling channels corresponds one-to-one with the end of the multiple material distribution channels that is away from the discharge port; The height of the material handling channel is lower than that of the material distribution channel.

[0008] Furthermore, the sorting component is equipped with multiple sorting channels and multiple limiting baffles; One end of each of the sorting channels corresponds to one end of each of the material handling channels that is away from the material distribution channels, and the height of the sorting channels is lower than that of the material handling channels; The limiting baffle is connected to the sorting channel, and the sorting channel has a material discharge notch at the location where the limiting baffle is located; The sorting channel is used to limit the material body with the small end facing upward, and to pass through the feeding notch along the sorting channel.

[0009] Furthermore, the sorting channel is configured as an L-shaped channel, which includes a bottom plate and side plates connected to each other, and the bottom plate has the material feeding notch. The L-shaped channel is inclined outward along the side of the side plate away from the bottom plate, so that the material body is inclined to the horizontal plane; The limiting baffle is connected to the side plate, and the end of the limiting baffle facing the material handling component has a chamfer.

[0010] Furthermore, the feeding assembly also includes a discharge component and a base frame. The discharge component has multiple discharge channels, and one end of each of the multiple discharge channels corresponds to one end of each of the multiple sorting channels that is away from the multiple material handling channels. The discharge channels are used to limit the material body. The base frame is connected to the material distribution component, the material handling component, the sorting component, and the material discharge component, respectively, and the base frame is detachably connected to the support frame.

[0011] Furthermore, the vibratory feeder structure includes a vibratory feeder, and the vibratory feeder is provided with the discharge port.

[0012] Furthermore, the external material circulation feeding device also includes a return mechanism, which is located below the feeding structure and is connected to the return port of the vibrating plate. The return mechanism is used to receive the material body falling from the feeding structure and send the material body back to the vibrating plate through the return port.

[0013] Furthermore, the material return mechanism includes a material return plate, a third vibrating element, and a frame. The material return plate is connected to the frame through the third vibrating element, the material return plate is connected to the material return port, and the material return plate is located below the feeding structure.

[0014] Furthermore, the external material circulation feeding device also includes a storage structure, which includes a storage hopper, a first vibrating element, and a support. The storage hopper is connected to the support through the first vibrating element, and the storage hopper is used to provide the material body to the vibrating plate structure.

[0015] Furthermore, the external material circulation feeding device also includes a base, which supports the storage structure, the vibrating disc structure, the feeding structure and the return mechanism respectively.

[0016] This utility model can achieve the following beneficial effects: In a first aspect, this utility model provides a material external circulation feeding device, including a vibrating disc structure and a feeding structure. The discharge port of the vibrating disc structure corresponds to that of the feeding structure, and the vibrating disc structure is used to feed material to the feeding structure. The feeding structure includes a feeding component, a support frame, and a second vibrating element. The feeding component is connected to the second vibrating element through the support frame. The feeding component includes a material sorting component and a sorting component. The material sorting component is used to distribute the large end or small end of the material body along the feeding direction of the feeding component. The sorting component corresponds to the discharge end of the material sorting component, and the sorting component is used to screen out the material body with the small end facing upward and transport it to the feeding end.

[0017] In this invention, the small end of the material body is designated as the small end, and the material body is placed inside the vibrating disc structure. The vibration of the vibrating disc structure sends the material body to the feeding component of the feeding structure. Due to the vibration of the second vibrating element, the material body continues to move along the feeding structure. The material handling component of the feeding structure can cause the small end of the material body to move towards or away from the sorting component. That is, both the material handling component and the sorting component are straight vibration channels for feeding in a straight line. Therefore, the small end can only face forward or backward. When the material body moves to the sorting component, the small end of the material body will be in two states: upward or downward. After passing through the sorting component, the material body with the small end facing downward will be pushed off the sorting component by the fractional portion of the material body, so that all the material bodies passing through the sorting component are in the state of having the small end facing upward.

[0018] Compared with the prior art, the material external circulation feeding device provided by this utility model sets a feeding component at the discharge end of the vibrating disc structure so that the material body can be distributed with the small end facing upward after passing through the sorting and sorting components, thereby avoiding the subsequent processing device from being inconvenient to grasp and process due to the different orientation of the material body during the feeding process.

[0019] In summary, this utility model at least alleviates the technical problem in the prior art where vibratory feeders often cannot select materials with one large end and the other small end facing upwards during the feeding process, resulting in inconsistent material feeding states and subsequent inconvenience in gripping and processing. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 A first-view perspective three-dimensional structural diagram of the material external circulation feeding device provided in an embodiment of this utility model; Figure 2 A two-dimensional structural diagram of the material external circulation feeding device provided in an embodiment of this utility model from a second perspective. Figure 3 A partial three-dimensional structural schematic diagram of the material external circulation feeding device provided in the embodiment of this utility model; Figure 4 A three-dimensional schematic diagram of the feeding structure of the external circulation feeding device provided in this embodiment of the utility model; Figure 5 for Figure 4 Enlarged schematic diagram of part A in the diagram; Figure 6 for Figure 4 Enlarged schematic diagram of section B in the diagram; Figure 7 A material structure diagram of the material external circulation feeding device provided in the embodiment of this utility model.

[0022] Icons: 1-Storage structure; 11-Storage hopper; 12-First vibrating component; 13-Support; 2-Vibrating disc structure; 21-Vibrating disc; 22-Discharge port; 23-Return port; 3-Feeding structure; 31-Feeding assembly; 311-Dividing component; 3111-Dividing channel; 312-Sorting component; 3121-Sorting channel; 313-Sorting component; 3131-Sorting channel; 31311-Discharge notch; 3132-Limiting baffle; 31321-Chamfered part; 314-Discharge component; 315-Base frame; 32-Support frame; 33-Second vibrating component; 4-Return mechanism; 41-Return disc; 42-Third vibrating component; 43-Frame; 5-Base; 6-Material body; 61-Small end; 62-Outer edge. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0030] Example 1 This embodiment provides a material external circulation feeding device, referring to... Figure 1 and Figure 4 The external material circulation feeding device includes a vibrating disc structure 2 and a feeding structure 3. The discharge port 22 of the vibrating disc structure 2 corresponds to the feeding structure 3, and the vibrating disc structure 2 is used to feed material to the feeding structure 3. The feeding structure 3 includes a feeding component 31, a support frame 32, and a second vibrating element 33. The feeding component 31 is connected to the second vibrating element 33 through the support frame 32. The feeding component 31 includes a material sorting component 312 and a sorting component 313. The material sorting component 312 is used to distribute the large end or small end 61 of the material body 6 along the feeding direction of the feeding component 31. The sorting component 313 corresponds to the discharge end of the material sorting component 312, and the sorting component 313 is used to screen out the material body 6 with the small end 61 facing upward and transport it to the feeding end.

[0031] This utility model embodiment at least alleviates the technical problem in the prior art that when feeding materials with one large end and the other small end, the material feeding state is inconsistent, resulting in inconvenience for subsequent gripping and processing.

[0032] In this embodiment of the invention, the small end 61 of the material body 6 is a threaded end, and the material body 6 is placed inside the vibrating disc structure 2. The vibration of the vibrating disc structure 2 sends the material body 6 to the feeding assembly of the feeding structure 3. Due to the vibration of the second vibrating element 33, the material body 6 continues to move along the feeding structure 3. The material handling component 312 of the feeding structure 3 can cause the small end 61 of the material body 6 to move toward or away from the sorting component 313, i.e., material handling. Both component 312 and sorting component 313 are straight vibration channels for feeding in a straight line; therefore, the small end 61 of the material body 6 can only face forward or backward. When the material body 6 moves to the sorting component, the small end 61 of the material body 6 will be in two states: upward or downward. After passing through the sorting component, the material body 6 with the small end 61 facing downward will be pushed off the sorting component by the fractional part of the sorting component, so that the material body 6 passing through the sorting component is in the state with the small end 61 facing upward.

[0033] Compared with the prior art, the material external circulation feeding device provided in this utility model embodiment sets up a feeding structure 3 at the discharge end of the vibrating plate structure 2 so that the material body 6 can be distributed with the small end facing upward after passing through the sorting component 312 and the sorting component 313, thereby avoiding the subsequent processing device from being inconvenient to grasp and process due to the different orientations of the material body 6 during the feeding process.

[0034] In an optional implementation of this embodiment, refer to Figure 5 The feeding assembly 31 also includes a material distribution component 311; the material distribution component 311 is provided with multiple spaced material distribution channels 3111, one end of each material distribution channel 3111 corresponds to the discharge port 22; the material handling component 312 is provided with multiple spaced material handling channels 3121, each of the material handling channels 3121 and the ends of the multiple material distribution channels 3111 that are away from the discharge port 22; the height of the material handling channels 3121 is lower than that of the material distribution channels 3111.

[0035] Specifically: the material distribution component 311 has a fan-shaped structure when viewed from above, and its first converging end is connected to the discharge port 22, which is used to receive the material body 6 from the discharge port 22; the second end of the material distribution component 311 is wider than the first end, and the second end is connected to the material handling component 312. It should be noted that the material distribution component 311 has multiple material distribution channels 3111 from its first end to its second end. The multiple material distribution channels 3111 are distributed at intervals. In use, the material body 6 moves along the material distribution channels 3111, and the small end 61 of the material body 6 faces the first end or the second end of the material distribution component 311. The material handling component 312 also has multiple material handling channels 3121. The number of material handling channels 3121 is the same as the number of material distribution channels 3111 and they correspond one-to-one. That is, the material handling channel 3121 is used to receive the material body 6 conveyed by the corresponding material distribution channel 3111. Since the height of the material handling channel 3121 is lower than that of the material distribution channel 3111, the material body 6 will flip over during the channel switching process.

[0036] Furthermore, referring to Figure 6 The sorting component 313 is provided with multiple sorting channels 3131 and multiple limiting baffles 3132; one end of each sorting channel 3131 corresponds to one end of each material handling channel 3121 that is away from the other end of each material distribution channel 3111, and the height of the sorting channel 3131 is lower than that of the material handling channel 3121; the limiting baffles 3132 are connected to the sorting channels 3131, and the sorting channels 3131 have a discharge notch 31311 at the location where the limiting baffles 3132 are provided; the sorting channels 3131 are used to limit the material body 6 that is set upward at the small end 61, and the material body 6 passes through the discharge notch 31311 along the sorting channel 3131.

[0037] Specifically: multiple sorting channels 3131 correspond one-to-one with multiple material handling channels 3121, and the height of the sorting channel 3131 is lower than that of the material handling channel 3121. The height difference between the two causes the material body 6 to rotate 90 degrees during the channel switching process, so that its small end 61 faces or downwards; while the limiting baffle 3132 is used to push the material body 6 with the small end 61 opening downwards out of the feeding notch 31311.

[0038] It should be noted that, referring to Figure 7 There is an outer edge 62 between the main body of the material body 6 and the small end 61, and the outer edge 62 protrudes outward relative to the small end 61. In use, when the small end 61 is facing upward, the limiting baffle 3132 and the sorting channel 3131 are used to allow the main body of the material body 6 to pass through. That is, the outer edge 62 is located below the limiting baffle 3132, while the main body of the material body 6 is located on the sorting channel 3131, and the small end 61 is located outside the limiting baffle 3132. Correspondingly, when the small end 61 is facing downward, the small end 61 is connected to the sorting channel 3131. At this time, the main body of the material body 6 cannot enter between the limiting baffle 3132 and the sorting channel 3131. As the material body 6 continues to advance, the limiting baffle 3132 will push the material body 6 down from the discharge notch 31311.

[0039] Furthermore, referring to Figure 6 The sorting channel 3131 is an L-shaped channel, which includes a bottom plate and a side plate connected to each other. The bottom plate has a material feeding notch 31311. The L-shaped channel is inclined outward along the side plate away from the bottom plate so that the material body 6 is inclined to the horizontal plane. The limiting baffle 3132 is connected to the side plate, and the end of the limiting baffle 3132 facing the material handling component 312 has a chamfered part 31321.

[0040] Specifically: the angle between the bottom plate and the side plate can be 90°, and the bottom plate edge is provided with rectangular feeding notches 31311; the L-shaped structure channel is inclined outward along the side plate away from the bottom plate, so that the material body 6 located on the sorting channel 3131 is in an inclined state, that is, the bottom plate and the side plate in contact with the material body 6 are both subjected to pressure from the material body 6. At this time, the material body 6 in the inclined state will not be dislodged from one side of the sorting channel 3131 due to the vibration of the sorting channel 3131, but will only fall off the sorting channel 3131 because it cannot pass through the feeding notches 31311.

[0041] The limiting baffle 3132 is connected to the top of the side plate so that the gap between the limiting baffle 3132 and the bottom plate can accommodate the main body of the material body 6. That is, when the small end 61 of the material body 6 is facing upward, the outer edge 62 is located below the limiting baffle 3132. The chamfered portion 31321 of the limiting baffle 3132 is used to push the material body 6 with the small end 61 facing downward in a direction away from the side plate, so as to prevent the material body 6 with this distribution from getting stuck on the sorting channel 3131. Preferably, there can be multiple sets of the feeding notch 31311 and the limiting baffle 3132 to increase the success rate of screening.

[0042] In an optional implementation of this embodiment, refer to Figure 4 The feeding assembly 31 also includes a discharge component 314 and a base frame 315. The discharge component 314 has multiple discharge channels, and one end of each discharge channel corresponds to one end of each sorting channel 3131 that is away from the end of each material handling channel 3121. The discharge channels are used to limit the material body 6. The base frame 315 is connected to the material sorting component 311, the material handling component 312, the sorting component 313, and the discharge component 314. The base frame 315 is detachably connected to the support frame 32.

[0043] Specifically: the number of multiple discharge channels and multiple sorting channels 3131 are equal and correspond one-to-one, and each discharge channel is matched with the material body 6 with the small end 61 facing upward, so that the material body 6 in this distribution state is limited in the discharge channel and avoids the material body 6 from deviating in orientation. The base frame 315 has a rectangular frame structure, and multiple reinforcing ribs are provided between its two long plates. The reinforcing ribs are used to support the material distribution component 311, the material handling component 312, the sorting component 313, and the discharge component 314; and the two long sides of the base frame 315 are detachably connected to the support frame 32 by bolts.

[0044] In an optional embodiment of this example, the vibratory feeder structure 2 includes a vibratory feeder 21, which has a discharge port 22.

[0045] Specifically: the vibratory plate 21 is preferably a cylindrical structure, and the inner wall of the vibratory plate 21 is provided with a spiral channel, and the top of the spiral channel is provided as the discharge port 22; and the vibratory plate 21 is driven by a vibratory motor.

[0046] Furthermore, referring to Figure 1 The material external circulation feeding device also includes a return mechanism 4, which is located below the feeding structure 3 and is connected to the return port 23 of the vibrating plate 21. The return mechanism 4 is used to receive the material body 6 falling from the feeding structure 3 and send the material body 6 back to the vibrating plate 21 through the return port 23.

[0047] Specifically: A return port 23 is provided in the middle of the side wall of the vibratory feeder 21. The return mechanism 4 is used to receive the material body 6 falling from the feeding structure 3 and to return the material body 6 from the return port 23 back into the vibratory feeder 21 through vibration, so that the vibratory feeder 21 can drive the material body 6 to re-enter the feeding structure 3.

[0048] Furthermore, referring to Figure 2 and Figure 3 The return mechanism 4 includes a return plate 41, a third vibrating element 42 and a frame 43. The return plate 41 is connected to the frame 43 through the third vibrating element 42. The return plate 41 is connected to the return port 23 and is located below the feeding structure 3.

[0049] Specifically: The top of the frame 43 is provided with a third vibrating element 42. The third vibrating element 42 can be one, two or three, etc. The top of the third vibrating element 42 supports the return plate 41. The return plate 41 is driven to vibrate by the third vibrating element 42 so that the material body 6 located on the return plate 41 can enter the return port 23.

[0050] In an optional implementation of this embodiment, refer to Figure 1 The material external circulation feeding device also includes a material storage structure 1, which includes a material storage hopper 11, a first vibrating element 12 and a support 13. The material storage hopper 11 is connected to the support 13 through the first vibrating element 12, and the material storage hopper 11 is used to provide material body 6 to the vibrating plate structure 2.

[0051] Specifically: the storage hopper 11 has a rectangular structure, and one end of it is set as a discharge section for conveying the Luer protective cap 6 placed inside to the vibrating plate structure 2, while the first vibrating element 12 is used to drive the storage hopper 11 to vibrate.

[0052] Furthermore, referring to Figure 1 The external material circulation feeding device also includes a base 5, which supports the storage structure 1, the vibrating plate structure 2, the feeding structure 3, and the return mechanism 4.

[0053] Specifically: The base 5 includes a bracket and a storage box, the top of which is connected to the bracket 13, the vibrating plate structure 2, the support frame 32 and the frame 43 respectively.

[0054] It should be noted that the first vibrating element 12, the second vibrating element 33, and the third vibrating element 42 can all be vibrating motors.

[0055] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to mutually. The above embodiments in this specification are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of this utility model.

Claims

1. A material external circulation feeding device, characterized in that, It includes a vibrating disc structure (2) and a feeding structure (3), wherein the discharge port (22) of the vibrating disc structure (2) corresponds to the feeding structure (3), and the vibrating disc structure (2) is used to feed material to the feeding structure (3); The feeding structure (3) includes a feeding assembly (31), a support frame (32), and a second vibrating element (33). The feeding assembly (31) is connected to the second vibrating element (33) through the support frame (32). The feeding assembly (31) includes a material handling component (312) and a sorting component (313). The material handling component (312) is used to distribute the large end or small end (61) of the material body (6) along the feeding direction of the feeding assembly (31). The sorting component (313) corresponds to the discharge end of the material handling component (312), and the sorting component (313) is used to screen out the material body (6) with the small end (61) facing upward and transport it to the feeding end.

2. The material external circulation feeder according to claim 1, wherein, The feeding assembly (31) also includes a material distribution component (311). The material distribution component (311) is provided with multiple spaced material distribution channels (3111), one end of each of the multiple material distribution channels (3111) is opposite to the discharge port (22); The material handling component (312) is provided with multiple spaced material handling channels (3121), and each of the multiple material handling channels (3121) corresponds to one end of the multiple material distribution channels (3111) that is away from the discharge port (22). The height of the material handling channel (3121) is lower than that of the material distribution channel (3111).

3. The material external circulation feed device according to claim 2, characterized in that, The sorting component (313) is provided with multiple sorting channels (3131) and multiple limiting baffles (3132). One end of each of the sorting channels (3131) corresponds to one end of each of the material handling channels (3121) that is away from the end of the distribution channels (3111), and the height of the sorting channels (3131) is lower than that of the material handling channels (3121). The limiting baffle (3132) is connected to the sorting channel (3131), and the sorting channel (3131) has a feeding notch (31311) at the location where the limiting baffle (3132) is located. The sorting channel (3131) is used to limit the material body (6) that is set upward at the small end (61), and to pass through the feeding notch (31311) along the sorting channel (3131).

4. The material external circulation feed device according to claim 3, characterized in that, The sorting channel (3131) is configured as an L-shaped structure channel, which includes a bottom plate and side plates connected to each other, and the bottom plate has the material feeding notch (31311). The L-shaped channel is inclined outward along the side of the side plate away from the bottom plate, so that the material body (6) is inclined to the horizontal plane; The limiting baffle (3132) is connected to the side plate, and the limiting baffle (3132) has a chamfer (31321) at one end facing the material handling component (312).

5. The material external circulation feed apparatus according to claim 3, wherein The feeding assembly (31) also includes a discharge component (314) and a base frame (315). The discharge component (314) has multiple discharge channels, and one end of each of the multiple discharge channels corresponds to one end of each of the multiple sorting channels (3131) that is away from the multiple material handling channels (3121). The discharge channels are used to limit the material body (6). The base frame (315) is connected to the material distribution component (311), the material handling component (312), the sorting component (313), and the material discharge component (314) respectively, and the base frame (315) is detachably connected to the support frame (32).

6. The material external circulation feeder of claim 1, wherein, The vibratory plate structure (2) includes a vibratory plate (21), and the vibratory plate (21) is provided with the discharge port (22).

7. The material external circulation feed device according to claim 6, wherein The material external circulation feeding device also includes a return mechanism (4), which is located below the feeding structure (3) and is connected to the return port (23) of the vibrating plate (21). The return mechanism (4) is used to receive the material body (6) falling from the feeding structure (3) and send the material body (6) back to the vibratory plate (21) through the return port (23).

8. The material external circulation feed device according to claim 7, wherein, The material return mechanism (4) includes a material return plate (41), a third vibrating element (42) and a frame (43). The material return plate (41) is connected to the frame (43) through the third vibrating element (42). The material return plate (41) is connected to the material return port (23) and is located below the feeding structure (3).

9. The material external circulation feed apparatus according to claim 7, wherein The material external circulation feeding device also includes a storage structure (1), which includes a storage hopper (11), a first vibrating element (12) and a support (13). The storage hopper (11) is connected to the support (13) through the first vibrating element (12), and the storage hopper (11) is used to provide the material body (6) to the vibrating plate structure (2).

10. The material external circulation feed apparatus according to claim 9, wherein The external material circulation feeding device also includes a base (5), which supports the storage structure (1), the vibrating plate structure (2), the feeding structure (3) and the return mechanism (4) respectively.

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