Feeding device

Abstract

The utility model relates to a feeding device which is characterized in that a feeding module and a returning module which are not in contact with each other are respectively and fixedly arranged on two vibrators with opposite driving directions, and the slope surface of a returning slope of the returning module is inclined from low to high in a direction opposite to the moving direction of materials in the feeding module; a feeding area and a discharging channel of the feeding module are both connected with a material arranging area, a material receiving groove is located below the material arranging area and used for receiving materials falling from the material arranging area, the material receiving groove is communicated with a material returning slope through a material receiving and discharging section, the material returning slope is communicated with the feeding area through a material returning and discharging section, the material returning and discharging section is arranged above the feeding area, and the material receiving and discharging section is arranged below the material arranging area. And the material receiving and discharging section is arranged above the material returning slope. According to the technical scheme, the problems that a feeding device is large in area and high in cost are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical device assembly, in particular to a feeding device. Background Art

[0002] The feeding mechanism is the starting point of a production machine or assembly line. Across various industries, it encompasses a wide variety of types and complex styles, resulting in a wide variety of feeding mechanisms. Their ultimate goal is to deliver the required material to the machine in the direction and path required by the equipment, facilitating subsequent production. An excellent feeding mechanism can effectively improve production efficiency and reduce production costs.

[0003] The most common feeding method today is vibrating tray feeding. However, considering the material characteristics and equipment requirements, vibrating trays have some shortcomings in meeting feeding needs. Due to their large size, a single vibrating tray cannot meet the high output requirements of the equipment, and multiple trays must be stacked. Furthermore, manual production requires hammering, which is extremely costly and not conducive to standardized production. Utility Model Content

[0004] Based on this, a feeding device is provided to solve the technical problems of large area and high cost of the feeding device in the prior art.

[0005] The objectives of the utility model can be achieved through the following technical solutions: a feeding device, two feeding modules and a return material module that do not contact each other are respectively fixed on two vibrators with opposite driving directions, the return material module has a return material slope and a return material discharging section, the slope surface of the return material slope is inclined from low to high against the direction of material movement in the feeding module; the feeding module includes a feeding area, a material sorting area, a discharging channel, a material receiving trough and a material receiving and discharging section, the feeding area and the discharging channel are both connected to the material sorting area, the material receiving trough is located below the material sorting area, and is used to receive materials dropped from the material sorting area; the material receiving trough is connected to the return material slope through the material receiving and discharging section, the return material slope is connected to the feeding area through the return material discharging section, the return material discharging section is arranged above the feeding area, and the material receiving and discharging section is arranged above the return material slope.

[0006] Compared with existing technologies, this solution achieves the following technical benefits: Material circulation is achieved through two oppositely directed material conveyors. A material sorting area and a receiving trough are positioned at different heights to screen and recover materials in non-specific conditions. Two oppositely directed conveyor tracks replace the circular structure of the vibrating plate, resolving the issue of a large feeder system. The non-circular structure is easier to machine, making it easier to use CNC lathes and reducing manufacturing costs.

[0007] In the above-mentioned feeding device, there is a height difference between the feeding area and the material sorting area, and the feeding area is higher than the material sorting area.

[0008] In the above-mentioned feeding device, there is also a buffer area between the feeding area and the material sorting area. The height of the buffer area is higher than the material sorting area, and the width of the buffer area along the direction perpendicular to the material movement in the material sorting area is smaller than the width of the feeding area.

[0009] Compared with existing technologies, this technical solution achieves the following technical effects: by creating a drop difference between the feeding area or buffer area and the material sorting area, the material changes state as it falls. More material changes to a specific state and falls into the material sorting area, improving the efficiency of material feeding.

[0010] In the above-mentioned feeding device, the material sorting area includes a support plate and a support member. The upper surface of the support plate is inclined so that the material on the support plate has the potential energy to move toward the support member. The support member limits the space for the movement of the material on the support plate and only allows material in a single specific state to move to the discharge channel.

[0011] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: the upper surface of the support plate is tilted to make the material lean against the abutment, and then the shape or size of the abutment is used to ensure that only materials in a specific state can pass through the material sorting area, thereby achieving the purpose of screening the required material state.

[0012] In the above-mentioned feeding device, the support plate includes a blanking section and a screening section, the abutment member includes a guide surface 1 and an abutment surface, the blanking section and the guide surface 1 cooperate and are close to the feeding area, the screening section and the abutment surface cooperate and are close to the discharge channel, and the guide surface 1 guides the moving direction of the material so that the space on the support plate allowing the material to move gradually shrinks.

[0013] In the above-mentioned feeding device, the support plate and the abutment member are arranged separately, and the distance from the bottom of the abutment member to the support plate can allow materials in non-specific states to pass through. The support plate also includes a blanking notch, and the blanking notch is arranged below the abutment member. The feeding module also includes a blanking trough, and the blanking trough is arranged below the blanking notch. The blanking trough is connected to the receiving trough.

[0014] In the above-mentioned feeding device, there are two of the material drop notches and the material drop troughs, and the two material drop notches and the material drop troughs are arranged along the material movement direction. The trough wall of the material drop trough close to the discharge channel is smoothly connected to the trough wall of the receiving trough.

[0015] In the above-mentioned feeding device, the discharge channel has a channel bottom plate, and the channel bottom plate on the discharge channel close to one end of the material sorting area is connected to the support plate and has the same inclination angle; the channel bottom plate on the discharge channel away from one end of the material sorting area is horizontally arranged, and the trajectory of the material transported by the discharge channel is twisted.

[0016] In the above-mentioned feeding device, the bottom of the receiving trough has an inclination, and the end close to the feeding area is lower than the end close to the discharging channel, and the receiving and discharging section is arranged at the end of the receiving trough close to the discharging channel.

[0017] In the above-mentioned feeding device, the feeding device further comprises a feeding hopper, which is arranged above the return material module, and the discharge port of the feeding hopper faces the return material slope.

[0018] In the above-mentioned feeding device, the return material module also includes a guide member, which is arranged at the higher end of the return material slope. The guide member has a second guide surface, and the second guide surface guides the material conveyed by the return material slope to the return material discharge section.

[0019] In the above-mentioned feeding device, there are two feeding modules, the return material module is arranged between the two feeding modules, there are two return material discharging sections, the two return material discharging sections are respectively facing the two feeding modules, and the guide member has two guide surfaces, and the guide member guides the material conveyed by the return material slope to the two return material discharging sections.

[0020] In the above-mentioned feeding device, the higher end of the return material slope has a platform, the return material discharging section is arranged on the platform, the guide member is arranged on the platform to separate the two return material discharging sections, and the two guide surfaces guide the material conveyed by the return material slope from the return material discharging section to the two feeding modules.

[0021] The technical solution of the present invention provides a novel rivet feeding method to overcome the shortcomings of the prior art and solve a series of industry problems:

[0022] 1. Effectively reduce the large amount of high-tech manual labor involved in hammering, and all parts can be produced through machining technology, which improves production efficiency and reduces costs.

[0023] 2. The material circulation is realized by conveying materials in two opposite directions, which takes up less space and solves the problem of large area of ​​feeding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of a feeding device according to an embodiment of the present utility model;

[0025] Figure 2 This is a top view of the feeding device according to an embodiment of the utility model;

[0026] Figure 3 This is a side view of the feeding device according to an embodiment of the utility model;

[0027] Figure 4 For this utility model Figure 1 A cross-sectional view taken along AA;

[0028] Figure 5 For this utility model Figure 4 A local magnified view of the middle H region;

[0029] Figure 6 For this utility model Figure 1 The cross-sectional view is taken along BB;

[0030] Figure 7 For this utility model Figure 1 A cross-sectional view with the section taken along CC;

[0031] Figure 8 This is another side view of an embodiment of the present invention;

[0032] Figure 9 A perspective view of an embodiment of the present utility model;

[0033] Figure 10 This is an example diagram of a recycling module in an embodiment of the present utility model;

[0034] Figure 11 This is an example diagram of the recycling module in an embodiment of the present utility model.

[0035] In the figure, 10, workbench;

[0036] 20. Vibrator;

[0037] 30. Feeding module; 31. Feeding area; 311. Blocking protrusion; 32. Buffer area; 33. Material sorting area; 331. Support plate; 3311. Material drop section; 3312. Material screening section; 3313. Material drop notch; 332. Abutment member; 3321. Guide surface 1; 3322. Abutment surface; 34. Discharge channel; 341. Channel bottom plate; 35. Material receiving chute; 36. Material receiving and discharging section; 37. Material drop chute;

[0038] 40. Return material module; 41. Return material slope; 42. Return material discharge section; 43. Guide member; 431. Guide surface 2;

[0039] 50. Feed hopper. DETAILED DESCRIPTION

[0040] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 understood as a limitation to the present invention.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0043] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0044] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0045] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0046] The specific structure is described in detail below with reference to the accompanying drawings.

[0047] like Figures 1 to 6 As shown, a feeding device comprises two non-contacting feeding modules 30 and a return module 40, each fixedly mounted on two vibrators 20 with opposite drive directions. The vibrators 20 are mounted on a workbench 10. The return module 40 has a return slope 41 and a return discharge section 42. The slope of the return slope 41 is inclined from low to high in the opposite direction of material movement in the feeding module 30. The feeding module 30 includes a feeding area 31, a material sorting area 33, a discharge channel 34, a receiving trough 35, and a material receiving and discharge section 36. The feeding area 31 and the discharge channel 34 are both connected to the material sorting area 33. The receiving trough 35 is located below the material sorting area 33 and is used to receive material that falls from the material sorting area 33. The material receiving trough 35 is connected to the return material slope 41 through the material receiving and discharging section 36 , and the return material slope 41 is connected to the feeding area 31 through the material receiving and discharging section 42 . The material receiving and discharging section 42 is arranged above the feeding area 31 , and the material receiving and discharging section 36 is arranged above the return material slope 41 .

[0048] See Figure 1The vibrator 20 moves the material on the return ramp 41 from a low position to a high position. Once transported to the high position, the material exits the return module 40 through the return discharge section 42 and falls into the feed area 31. The side of the feed area 31 closer to the return module 40 is higher than the side farther from the module. Under the action of the vibrator 20, the material moves toward the side farther from the module 40. After reaching the side of the feed area 31 farther from the return module 40, the vibrator 20 moves the material toward the sorting area 33. After screening in this area, material with a specific state passes through this area and enters the discharge channel 34. Material with a non-specific state falls into the receiving trough 35. Under the action of the vibrator 20, the material in the receiving trough 35 exits the feed module 30 through the receiving and discharge section 36 and falls onto the return ramp 41.

[0049] It should be noted that in order to improve the material return effect of the return slope 41, the slope surface of the return slope 41 can be designed as small steps, or a frosted surface to increase friction, or a spray coating. Regardless of the type of slope surface used, the purpose is to prevent the material from moving from high to low on the slope surface during the conveying process.

[0050] It should be noted that the feed zone 31 is as follows Figure 3 、 Figure 10 As shown, in order to allow the material to move smoothly from the side close to the return material module 40 to the side away from the return material module 40, the feed area 31 is also provided with a blocking protrusion 311, which is used to prevent the material from falling from the feed area 31 into the receiving trough 35 before moving to the side away from the return material module 40.

[0051] For further information, see Figure 1 、 Figure 5 、 Figure 6 As shown, there is a height difference between the feeding area 31 and the material sorting area 33, and the feeding area 31 is higher than the material sorting area 33. This height difference can change the state of the material, so that more materials stand up, so that the proportion of materials in a specific state entering the material sorting area 33 is higher.

[0052] Furthermore, a buffer zone 32 is provided between the feed zone 31 and the sorting zone 33. The buffer zone 32 is taller than the sorting zone 33 and, perpendicular to the direction of material movement in the sorting zone 33, is narrower than the feed zone 31. The buffer zone 32 is a continuation of the feed zone 31, but is narrower. This design allows smaller quantities of material to move a distance within the buffer zone 32, alleviating the stacking of materials. When materials fall from the buffer zone 32 into the sorting zone 33, the number of materials passing through the height difference area simultaneously is small, e.g., two to three, so the materials are less likely to interact with each other and become stacked.

[0053] For further information, see Figure 5 and Figure 6 The material sorting area 33 includes a support plate 331 and a support member 332. The upper surface of the support plate 331 is inclined so that the material on the support plate 331 has potential energy to move toward the support member 332. The support member 332 is set on one side of the inclined direction. The material with a specific state is erected on the support plate 331. Because the upper surface of the support plate 331 is inclined, the material slides to one side along the inclined surface under the action of gravity. In this way, the material will partially rest on the support member 332. The support member 332 limits the space for the material to move on the support plate 331 and only allows a single material in a specific state to move to the discharge channel 34. By setting the positional relationship between the support member 332 and the support plate 331, only materials in a specific state can pass through the material sorting area 33.

[0054] It should be noted that the positional relationship between the abutment 332 and the support plate 331 is such that, for example, the highest inclination point of the support plate 331 is less than the width of a material from the plane where the abutment surface 3322 of the abutment 332 is located. In this way, except for materials in a specific state, other materials will fall out of the support plate 331.

[0055] For further information, see Figure 5 The support plate 331 includes a blanking section 3311 and a screening section 3312. The abutment member 332 includes a guide surface 1 3321 and an abutment surface 3322. The blanking section 3311 and guide surface 1 3321 cooperate and are located near the feed area 31. The screening section 3312 and abutment surface 3322 cooperate and are located near the discharge channel 34. Guide surface 1 3321 guides the movement of the material, gradually reducing the space on the support plate 331 for material movement. The blanking section 3311 is wider than the screening section 3312, providing ample space for the material to fall from the feed area 31 into the blanking section 3311. This design increases the amount of material that can simultaneously pass through the height difference position and be erected in a specific state.

[0056] For further information, see Figure 6 , the support plate 331 and the abutment 332 are separately arranged, and the distance from the bottom of the abutment 332 to the support plate 331 is sufficient for materials in non-specific states to pass through. There is a gap between the abutment 332 and the support plate 331, and this gap can be passed by any specific material that is not erected. The support plate 331 also includes a material dropout notch 3313, which is arranged below the abutment 332. After the material passes through the gap between the abutment 332 and the support plate 331, it falls from the material dropout notch 3313. The feeding module 30 also includes a material dropout trough 37, which is arranged below the material dropout notch 3313, and the material dropout trough 37 is connected to the material receiving trough 35. The material falling into the material dropout trough 37 will enter the material receiving trough 35.

[0057] It should be noted that in the solution where the support plate 331 and the abutment member 332 are separately arranged, the distance from the bottom of the abutment member 332 to the support plate 331 should be less than the total length of the material but greater than the width or diameter of the material.

[0058] It should be noted that the blanking notch 3313 can be one or more notches whose length is not greater than that of the screening section 3312 , or can be one notch whose length is equal to that of the screening section 3312 .

[0059] For further information, see Figure 5 The material receiving trough 35 has two notches 3313 and two troughs 37, both of which are arranged along the direction of material movement. The trough wall of the trough 37 near the discharge channel 34 is smoothly connected to the trough wall of the receiving trough 35. This smooth connection of the trough wall is designed to improve the buffering capacity of the receiving trough 35. Under the action of the vibrator 20, the material in the receiving trough 35 moves toward the discharge channel 34. If the material movement in the receiving and discharge section 36 slows down, it will cause material accumulation near the discharge channel 34. With the design of the smoothly connected trough wall, the material can enter the trough 37, preventing excessive material accumulation.

[0060] For further information, see Figure 8 The discharge channel 34 has a channel base 341. The channel base 341 near the material sorting area 33 of the discharge channel 34 abuts the support plate 331 and has the same inclination angle. The channel base 341 at the end of the discharge channel 34 away from the material sorting area 33 is horizontally arranged, and the material conveying path of the discharge channel 34 is twisted. Twisting occurs when the material moves from the feed end to the discharge end on the channel base 341, changing the material's original tilted state to a vertical state. The tilted state is for screening, while the vertical state is for distribution.

[0061] For further information, see Figure 5 The bottom of the receiving trough 35 is inclined, with the end near the feed area 31 lower than the end near the discharge channel 34. The receiving and discharging section 36 is located at the end of the receiving trough 35 near the discharge channel 34. Designing the bottom of the receiving trough 35 to be inclined increases the storage capacity near the feed area 31. In addition, because the bottom has a slope, materials moving in the receiving trough 35 need to overcome the force of gravity and will not move all at once to the end near the discharge channel 34, thus preventing excessive material from accumulating near the discharge channel 34.

[0062] For further information, see Figure 9The feeding device also includes a feeding hopper 50, which is located above the return module 40, with its outlet facing the return slope 41. A large amount of material is placed in the feeding hopper 50, and the bottom of the feeding hopper 50 is connected to the vibrator 20, which periodically replenishes the material into the return slope 41. This greatly improves automation efficiency and reduces manual operation.

[0063] For further information, see Figure 3 、 Figure 10 、 Figure 11 The return module 40 also includes a guide 43, located at the higher end of the return ramp 41. The guide 43 has a second guide surface 431 that guides the material conveyed from the return ramp 41 to the return discharge section 42. Because the feed module 30 is located on one side of the return module 40, the return discharge section 42 is located on the side of the return module 40 near the feed module 30. The material conveyed from the return ramp 41 needs to be guided by the second guide surface 431 to the return discharge section 42, and then fall into the feed area 31 through the return discharge section 42.

[0064] For further information, see Figure 3 、 Figure 10 and Figure 11 There are two feeding modules 30, and the return material module 40 is arranged between the two feeding modules 30. There are two return material discharging sections 42, and the two return material discharging sections 42 are respectively facing the two feeding modules 30. The guide member 43 has two guide surfaces 431, and the guide member 43 guides the material conveyed by the return material slope 41 to the two return material discharging sections 42.

[0065] For further information, see Figure 3 The higher end of the return material slope 41 has a platform, and the return material discharge section 42 is located on the platform. A guide 43 is provided on the platform to separate the two return material discharge sections 42. Two guide surfaces 431 guide the material conveyed by the return material slope 41 from the return material discharge section 42 to the two feeding modules 30. The material conveyed by the return material slope 41 is divided into two parts and guided to the two feeding modules 30.

[0066] It should be noted that the return material slope 41 can be a slope extending from one end of the return material module 40 to the other end. Figure 10 The return material slope 41 can also be composed of the platforms at both ends plus the slope in the middle, or the return material slope 41 can be composed of the platform at one end plus the slope. Figure 3 .

[0067] It should be noted that the positions of the return material discharge section 42 and the feed area 31 can be as follows: Figure 10 Generally, the feeding area 31 extends into the interior of the recycling module 40 and is discharged below the recycling discharge section 42. Alternatively, the recycling discharge section 42 extends above the feeding area 31.

[0068] It should be noted that the return module 40, the feeding module 30, and the vibrator 20 connected to the feeding channel mentioned in the above solution can be directly vibrated, and the power and specifications of the vibrator 20 are matched according to actual conditions.

[0069] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A feeding device, characterized in that: Two non-contacting feeding modules (30) and return material modules (40) are respectively fixedly arranged on two vibrators (20) with opposite driving directions, and the return material module (40) has a return material slope (41) and a return material discharge section (42), and the slope surface of the return material slope (41) is inclined from low to high against the direction of material movement in the feeding module (30); the feeding module (30) includes a feeding area (31), a material sorting area (33), a discharge channel (34), a material receiving trough (35) and a material receiving and discharge section (36), and the feeding area (31) and the The discharge channel (34) is connected to the material sorting area (33), and the material receiving trough (35) is located below the material sorting area (33) and is used to receive the material dropped from the material sorting area (33); the material receiving trough (35) is connected to the return material slope (41) through the material receiving and discharging section (36), and the return material slope (41) is connected to the feed area (31) through the return material discharging section (42), and the return material discharging section (42) is arranged above the feed area (31), and the material receiving and discharging section (36) is arranged above the return material slope (41).

2. The feeding device according to claim 1, characterized in that There is a height difference between the feed area (31) and the material sorting area (33), and the feed area (31) is higher than the material sorting area (33).

3. The feeding device according to claim 2, characterized in that: A buffer zone (32) is provided between the feeding zone (31) and the material sorting zone (33). The height of the buffer zone (32) is higher than that of the material sorting zone (33). The width of the buffer zone (32) along the direction perpendicular to the material movement in the material sorting zone (33) is smaller than the width of the feeding zone (31).

4. The feeding device according to any one of claims 1 to 3, characterized in that: The material sorting area (33) includes a support plate (331) and a support member (332). The upper surface of the support plate (331) is inclined so that the material on the support plate (331) has the potential energy to move toward the support member (332). The support member (332) limits the space for the material on the support plate (331) to move and only allows a single material in a specific state to move to the discharge channel (34).

5. The feeding device according to claim 4, characterized in that: The support plate (331) includes a blanking section (3311) and a screening section (3312); the abutting member (332) includes a guide surface 1 (3321) and an abutting surface (3322); the blanking section (3311) and the guide surface 1 (3321) cooperate with each other and are close to the feeding area (31); the screening section (3312) and the abutting surface (3322) cooperate with each other and are close to the discharging channel (34); the guide surface 1 (3321) guides the moving direction of the material so that the space on the support plate (331) allowing the material to move gradually shrinks.

6. The feeding device according to claim 4, characterized in that: The support plate (331) and the abutment member (332) are separately arranged, and the distance between the bottom of the abutment member (332) and the support plate (331) is sufficient for materials in non-specific states to pass through. The support plate (331) further comprises a blanking notch (3313), and the blanking notch (3313) is arranged below the abutment member (332). The feeding module (30) further comprises a blanking trough (37), and the blanking trough (37) is arranged below the blanking notch (3313). The blanking trough (37) is connected to the receiving trough (35).

7. The feeding device according to claim 6, characterized in that: There are two blanking notches (3313) and two blanking troughs (37), and both the two blanking notches (3313) and the two blanking troughs (37) are arranged along the direction of material movement. The wall of the blanking trough (37) close to the discharge channel (34) is smoothly connected to the wall of the receiving trough (35).

8. The feeding device according to claim 4, characterized in that: The discharge channel (34) has a channel bottom plate (341), and the channel bottom plate (341) on the discharge channel (34) close to one end of the material sorting area (33) is connected to the support plate (331) and has the same inclination angle; the channel bottom plate (341) on the discharge channel (34) away from one end of the material sorting area (33) is horizontally arranged, and the trajectory of the material transported by the discharge channel (34) is twisted.

9. The feeding device according to claim 1, characterized in that: The bottom of the receiving trough (35) has an inclination, and the end close to the feeding area (31) is lower than the end close to the discharging channel (34). The receiving and discharging section (36) is arranged at the end of the receiving trough (35) close to the discharging channel (34).

10. The feeding device according to claim 1, characterized in that: The feeding device further comprises a feeding hopper (50), which is arranged above the return material module (40), and the discharge port of the feeding hopper (50) faces the return material slope (41).

11. The feeding device according to claim 1, characterized in that: The return material module (40) further includes a guide member (43), the guide member (43) being arranged at a higher end of the return material slope (41), the guide member (43) having a second guide surface (431), the guide surface (431) guiding the material conveyed by the return material slope (41) to the return material discharge section (42).

12. The feeding device according to claim 11, characterized in that: There are two feeding modules (30), the return material module (40) is arranged between the two feeding modules (30), there are two return material discharging sections (42), the two return material discharging sections (42) are respectively oriented towards the two feeding modules (30), and the guide member (43) has two guide surfaces (431), and the guide member (43) guides the material conveyed by the return material slope (41) to the two return material discharging sections (42).

13. The feeding device according to claim 12, characterized in that: The higher end of the return material slope (41) is provided with a platform, the return material discharge section (42) is arranged on the platform, the guide member (43) is arranged on the platform to separate the two return material discharge sections (42), and the two guide surfaces (431) guide the material conveyed by the return material slope (41) from the return material discharge section (42) to the two feeding modules (30).

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