Dosing device and vision selection machine

Abstract

The utility model discloses a kind of material discharging device and visual selection machine, the material discharging device is located in the upstream of conveying platform, and the material discharging device includes: hopper;Material discharging component, it includes horizontal vibration disc located below hopper and at least two sequentially butt-jointed inclined vibration disc downstream of horizontal vibration disc;Inclined vibration disc is equipped with V-shaped guide groove for guiding material;Horizontal vibration disc and the bottom of each inclined vibration disc are equipped with vibrating mechanism.The material discharging device of the utility model is by being equipped with three vibrating disc capable of independent vibration, and two vibrating disc downstream is arranged obliquely, and V-shaped guide groove is configured on vibrating disc, so as to the material with lighter weight and conical column appearance can be arranged, transported with its axial posture in line with conveying direction, so as to be favorable to improve the identification precision of visual identification system to material and avoid other materials in the process of rejecting device rejecting material.

Description

Technical Field

[0001] This utility model relates to the field of screening and sieving technology, and in particular to a feeding device and a visual sorting machine. Background Technology

[0002] Existing screening machines for screening materials (such as agricultural products, tangible foods, and industrial products) include: a feeding device, a conveying platform, a vision recognition system, and a rejection device. The feeding device is used to arrange the materials at intervals. The conveying platform is located downstream of the feeding device and is used to receive the materials discharged from the feeding device and transport the materials in a straight line. The vision recognition system is arranged above the materials to collect image information of the materials on the conveying platform and determine the grade of the materials based on screening rules (programs). The rejection device separates the materials of that grade from other grades by changing the conveying trajectory of the materials based on the grade determined by the vision recognition system. The separated materials are collected by a receiving device, thereby realizing the screening of materials by grade.

[0003] The discharge device of a conventional screening and sorting machine typically includes a hopper, a vibratory feeder disposed below the hopper with multiple sorting plates on its upper surface, and a tamping mechanism disposed at the bottom of the vibratory feeder to provide vibration to the feeder. The sorting plates divide the vibratory feeder into multiple guide channels, and the downstream end of the guide channels forms a discharge port. Under the action of vibration, the material in the hopper is conveyed forward along the guide channels defined by the sorting plates and finally discharged from the discharge port.

[0004] The aforementioned feeding mechanism has the following drawbacks when sorting and conveying materials with a large length-to-diameter ratio and relatively light weight, such as cylindrical, conical, or quasi-conical materials:

[0005] Because the material has a large length-to-diameter ratio and is relatively light, existing feeding mechanisms cannot easily discharge the material at intervals with its axial direction aligned with the conveying direction. Utility Model Content

[0006] In view of the above-mentioned problems existing in the prior art, the purpose of this utility model is to provide a feeding device and a visual sorting machine to solve the problems in the prior art.

[0007] To achieve the above objectives, the present invention adopts the following solution.

[0008] A material dispensing device located upstream of a conveying platform, the material dispensing device comprising:

[0009] hopper;

[0010] The feeding assembly includes a horizontal vibrating disc located below the hopper and at least two sequentially connected inclined vibrating discs located downstream of the horizontal vibrating disc; the inclined vibrating discs are provided with V-shaped guide grooves for guiding the material; wherein:

[0011] The bottom of each of the horizontal and inclined vibratory discs is equipped with a tamping mechanism.

[0012] Preferably, each of the inclined vibratory disks is provided with two V-shaped guide grooves.

[0013] Preferably, the feeding assembly includes two components, which are arranged in parallel, and the horizontal vibratory feeders of both components are located below the hopper; wherein:

[0014] The hopper is provided with a dividing component, which divides the interior of the hopper into hopper chambers corresponding to the two horizontal vibrating discs respectively;

[0015] The dividing member has a V-shaped top, which is lower than the upper edge of the funnel.

[0016] Preferably, the downstream end of the downstream inclined vibratory plate forms a branch port corresponding to each V-shaped guide groove, and each branch port corresponds to a discharge port.

[0017] Preferably, the front wall of the funnel is provided with a discharge port, and an adjustment plate is provided above the discharge port to adjust the opening degree of the discharge port.

[0018] Preferably, the inclined vibratory disc located upstream is provided with retaining edges on both sides.

[0019] This utility model also discloses a visual sorting machine, including: a conveying platform, a visual recognition system, and a rejection device. The visual sorting machine also includes the aforementioned discharge device located upstream of the conveying platform.

[0020] Compared with the prior art, the feeding device and sight sorter provided by this utility model have the following advantages:

[0021] 1. The feeding device of this utility model is equipped with three vibrating discs that can vibrate independently, with the two downstream vibrating discs arranged at an angle, and V-shaped guide grooves are provided on the vibrating discs. This allows lightweight materials with a conical shape to be arranged and conveyed at intervals with their axial direction aligned with the conveying direction. This helps to improve the recognition accuracy of the visual recognition system for materials and avoids other materials being involved in the material rejection process of the rejection device.

[0022] 2. The visual sorting machine provided by this utility model is particularly suitable for screening materials with a large aspect ratio and light weight, and has high accuracy in material identification and grading.

[0023] 3. Other advantages of this utility model are disclosed directly or implicitly in the specific embodiments described in the specification.

[0024] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit the present invention.

[0025] The overview of various implementations or examples of the technology described in this utility model is not a complete disclosure of the full scope or all features of the disclosed technology. Attached Figure Description

[0026] In drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with or without letter suffixes may indicate different instances of similar parts. The drawings generally illustrate various embodiments by way of example rather than limitation and, together with the description and claims, serve to explain embodiments of the utility model. Where appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts. Such embodiments are illustrative and not intended to be exhaustive or exclusive embodiments of the apparatus or method.

[0027] Figure 1 This is a three-dimensional structural diagram of a vision sorter provided for an embodiment of the present invention.

[0028] Figure 2 This is a three-dimensional structural diagram of the material feeding device and guiding device in a visual sorting machine provided in an embodiment of the present invention.

[0029] Figure 3 It is a guide drive roller that has the function of adjusting the distance between two linear strips.

[0030] Figure 4 A perspective sectional view of a vision sorter provided for an embodiment of this utility model.

[0031] Figure 5 for Figure 4 A magnified view of part A.

[0032] Figure label:

[0033] 10-Discharge device; 11-Hopper; 111-Separating component; 112-Discharge port; 113-Adjusting plate; 12-Discharge assembly; 121-Horizontal vibratory feeder; 122-Upstream inclined vibratory feeder; 123-Downstream inclined vibratory feeder; 124-Branch port; 125-V-shaped guide groove; 13-Vibration mechanism; 20-Guiding device; 21-Guiding conveyor unit; 211-Linear strip; 212-Guiding drive roller; 2121-Annular groove; 2122-Roller body; 2123-Adjusting sleeve; 2124-Modular Set; 2125-Elastic component; 2126-First wedge surface; 2127-Second wedge surface; 2128-Force application hole; 2129-Mandrel; 22-Motor; 231-Outer baffle; 232-Inner baffle; 24-Limiting roller; 251-Upstream guide chute; 252-Downstream guide chute; 30-Conveying platform; 31-Upstream conveying platform; 32-Downstream conveying platform; 33-Gap; 41-Upstream visual recognition device; 42-Downstream visual recognition device; 60-Mirror; 61-Adjusting bracket; 100-Material. Detailed Implementation

[0034] 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, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0035] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0036] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0037] like Figure 1 As shown, an embodiment of this utility model discloses a visual sorting machine, which can be used to screen materials 100 from various sources according to their quality grade (the criteria for quality grade include, but are not limited to, size, regularity of shape, surface quality, etc.). For example, it can screen agricultural fruits, tangible food, and tangible industrial products. This utility model does not limit the source of the screened material 100. This visual sorting machine can be used to screen materials 100 with various shapes, and is particularly suitable for screening cylindrical, conical, and quasi-conical materials 100 with a large length-to-diameter ratio, and is especially suitable for materials 100 containing a lot of impurities. The following description will take screening materials 100 with a lot of impurities and a large length-to-diameter ratio as an example, but this should not be construed as a limitation on the shape of the screened material. The visual sorting machine includes: a feeding device 10, a guiding device 20, a conveying platform 30, a visual recognition system, and a rejection device. The feeding device 10, the guiding device 20, and the conveying platform 30 are arranged sequentially in the conveying direction. The visual recognition system is located in the section where the conveying platform 30 is located. After passing through the feeding device 10 and the guiding device 20, the material 100 falls onto the conveying platform 30 in a multi-column arrangement. The conveying platform 30 continues to convey the material 100. When the material 100 passes through the visual recognition system, the visual recognition system acquires the image information of the material 100 and classifies the material 100 into grades by analyzing the image information. The graded material 100 is conveyed toward the rejection device. When passing through the rejection device, the rejection device separates the material 100 of the corresponding grade from the material 100 by changing the conveying trajectory of the material 100 (for example, by blowing air laterally on the material 100 to make the material 100 move laterally). The separated material is collected by the receiving device, thereby realizing the graded screening and collection of materials.

[0038] In this utility model, such as Figure 2 and combined Figure 1As shown, the discharge device 10 includes a hopper 11, a discharge assembly 12, and a vibration mechanism 13. The discharge assembly 12 includes a horizontal vibrating disc 121 and two inclined vibrating discs. The horizontal vibrating disc 121 is arranged below the hopper 11. The two inclined vibrating discs are an upstream inclined vibrating disc 122 and a downstream inclined vibrating disc 123. The upstream end of the upstream inclined vibrating disc 122 is connected to the downstream end of the horizontal vibrating disc 121, and the upstream inclined vibrating disc 122 is arranged inclined downwards. The upstream end of the downstream inclined vibrating disc 123 is connected to the downstream end of the upstream inclined vibrating disc 122, and the downstream inclined vibrating disc 123 is arranged inclined downwards. The vibration mechanism 13 is installed at the bottom of the horizontal vibrating disc 121 and the two inclined vibrating discs, so that each vibrating disc is provided with vibration by a separate vibration mechanism 13. Thus, under the vibration of the horizontal vibrating plate 121, the material 100 accumulated in the hopper 11 is discharged from the discharge port 112 at the bottom of the front wall of the hopper 11, and then moves forward and falls onto the upstream inclined vibrating plate 122. Under the vibration and tilting action of the upstream inclined vibrating plate 122, the material 100 moves forward and tilts and then falls onto the downstream inclined vibrating plate 123. Under the vibration and tilting action of the downstream inclined vibrating plate 123, the material 100 is finally discharged from the downstream port (i.e., discharge port) of the downstream vibrating plate and falls onto the guiding device 20.

[0039] In this invention, V-shaped guide grooves 125 are provided on both inclined vibratory plates. For example, V-shaped guide grooves 125 are obtained by bending the plate-shaped vibratory plate body. The two inclined surfaces of the V-shaped guide grooves 125 have a converging effect on the material 100, so that the material 100 is finally arranged at intervals with its axial direction in line with the conveying direction. This makes all the material 100 photographed and identified by the visual recognition system in a uniform posture when passing through the conveying platform 30.

[0040] As can be seen from the above, by configuring three vibrating discs capable of independent vibration and arranging the two downstream vibrating discs at an angle, and by configuring V-shaped guide grooves 125 on the vibrating discs, the lightweight material 100 with a conical shape can be arranged and conveyed at intervals with its axial direction aligned with the conveying direction. This helps to improve the recognition accuracy of the visual recognition system for the material 100 and avoids involving other materials 100 during the rejection process of the rejection device.

[0041] Preferably, the feeding assembly 12 includes multiple sets, for example, such as Figure 2The two sets of discharge assemblies 12 shown are arranged side by side in width (or perpendicular to the conveying direction), and the horizontal vibrating discs 121 of the two sets of discharge assemblies 12 are both located below the hopper 11. Correspondingly, a dividing member 111 is arranged in the hopper 11. The dividing member 111 can be formed by welding multiple plates. The top of the dividing member 111 is conical and the top of the dividing member 111 is lower than the upper edge of the hopper 11. The dividing member 111 divides the interior of the hopper 11 into hopper 11 cavities that are respectively opposite to the two horizontal vibrating discs 121. Thus, the material 100 accumulated in the hopper 11 falls onto the horizontal vibrating disc 121 through the two hopper 11 cavities and the corresponding discharge ports 112 located at the bottom of the front wall. Preferably, an adjusting plate 113 is provided above each discharge port 112. The adjusting plate 113 can adjust the opening of the discharge port 112, thereby adjusting the quantity of material 100 falling on the horizontal vibrating plate 121 per unit time, and thus controlling the conveying density. Preferably, the two sides of the upstream inclined vibrating plate 122 are bent to form a stop edge. This stop edge is used to prevent the material 100 falling on the upstream inclined vibrating plate 122 from falling from the sides of the upstream inclined vibrating plate 122 before it is regularly arranged.

[0042] Preferably, each inclined vibratory feeder is equipped with two V-shaped guide grooves 125, and the downstream end of the downstream inclined vibratory feeder 123 forms a branch port 124 corresponding to each V-shaped guide groove 125, with each branch port 124 corresponding to a discharge port. Thus, the two sets of discharge assemblies 12 have four discharge ports, or two sets of discharge ports.

[0043] It should be noted that this utility model does not limit the number of feeding assembly 12 groups, the number of V-shaped guide grooves 125, or the number of feeding ports. Figure 1 and Figure 2 The two sets of feeding components 12 and the four feeding ports shown are merely examples.

[0044] like Figure 1 and Figure 2 As shown, the guiding device 20 is located between the dispensing device 10 and the conveying platform 30. The upstream end of the guiding device 20 is connected to the downstream end of the dispensing device 10, and the downstream end of the guiding device 20 is connected to the upstream end of the conveying platform 30. The guiding device 20 includes two paired guiding drive rollers 212 and a guiding conveying unit 21. The two guiding drive rollers 212 are arranged at intervals along the conveying direction; that is, one guiding drive roller 212 is located upstream of the guiding device 20 and adjacent to the dispensing device 10, and the other guiding drive roller 212 is located downstream of the guiding device 20 and adjacent to the conveying platform 30. A motor 22 is mounted on the side of one of the guiding drive rollers 212 as the driving roller, while the other serves as the driven roller. Figure 1As shown, a motor 22 is mounted on the side of the upstream guide drive roller 212, serving as the drive roller. The guide conveying unit 21 includes two linear strips 211 arranged in pairs. The two linear strips 211 are spaced apart in the width direction between the two guide drive rollers 212 and driven by the guide drive rollers 212, which drive the two linear strips 211 to move synchronously. The two linear strips 211 correspond to the discharge ports of the aforementioned discharge device 10, which consists of two sets of four discharge ports. Correspondingly, the guide device 20 is configured with two pairs of guide drive rollers 212, each with two pairs of spaced linear strips 211 located on both sides of the axial direction of the guide drive roller 212. Thus, the guide device 20 has four pairs of linear strips 211 corresponding to the four discharge ports.

[0045] After material 100 is discharged from the discharge port of the discharge device 10, it falls onto two (or a pair) linear strips 211. The two linear strips 211 simultaneously support and transport the material 100 (before falling onto the two linear strips 211, the material 100 is basically in an axial position aligned with the conveying direction). During the conveying of material 100, since the material 100 is supported only by the two linear strips 211, the projected area of ​​the material 100 is basically a hollow area except for the linear strips 211. Therefore, impurities are difficult to adhere to the linear strips 211 and the material 100 and will fall off automatically, thus making it difficult for them to be conveyed with the material 100. Consequently, impurities are less likely to fall onto the conveying platform 30 with the material 100, thereby reducing the interference of impurities on the visual recognition system. Therefore, this utility model effectively removes impurities and reduces their interference with the visual recognition system by adding a guiding device 20 between the feeding device 10 and the conveying platform 30, which utilizes paired linear strips 211 to convey the material 100. Preferably, the roller surface of the guide drive roller 212 has two annular grooves 2121 on the section corresponding to the two linear strips 211 of the guide conveying unit 21. The two linear strips 211 are embedded in the two annular grooves 2121, which are used to position the linear strips 211 so that the two linear strips 211 maintain a certain distance to avoid axial movement of the linear strips 211 on the guide drive roller 212. The cross-section of the linear strip 211 can be circular, elliptical, or polygonal, etc. Preferably, the cross-section of the linear strip is circular, and correspondingly, the cross-section of the annular groove 2121 is arc-shaped. Preferably, a limiting roller 24 is horizontally placed at the bottom of the upper belt of the linear strip 211. Specifically, the limiting roller 24 can be provided in the upstream area (near the discharge device 10), the middle area and the downstream area where the linear strip 211 is located. The limiting roller 24 is used to suppress the vertical jumping of the linear strip 211, thereby suppressing the material 100 that is discharged from the discharge port and falls on the upstream of the linear strip 211 from bouncing and the material 100 from bouncing during the conveying process.

[0046] Preferably, an impurity guide trough is arranged below the section defined by each pair of guide drive rollers 212. This impurity guide trough is used to receive impurities falling from the linear strip 211. Preferably, an outer baffle 231 and an inner baffle 232 are respectively arranged on both sides in the width direction of each pair of linear strips 211. The outer baffle 231 and the inner baffle 232 form a V-shape. The outer baffle 231 and the inner baffle 232 are flush at the upstream end and extend to the upstream end of the guide device 20. The downstream end of the outer baffle 231 extends to the downstream end of the guide device 20, while the lower end of the inner baffle 232 only extends to the middle region of the guide device 20. In this way, the upstream section of each pair of linear strips 211 has baffles on both sides, while the downstream section only has baffles on the outer side and no baffles on the inner side. At the same time, the impurity guide trough includes an upstream guide trough 251 corresponding to the upstream section and a downstream guide trough 252 corresponding to the downstream section. The advantage of this configuration is that when material 100 (e.g., fruit, shaped food) passes through the upstream section of the guiding device 20, smaller impurities such as particulate matter (e.g., soil particles) and flakes (e.g., the surface of the material) can fall into the upstream guide trough 251 through the gap between the two linear strips 211 and the gap between the linear strips 211 and the baffle. Larger impurities (which are likely complete or incomplete material 100 smaller than the target material 100 being screened, e.g., half a fruit) may also be impurities that were not properly guided by the two linear strips 211. The target material 100 with stable support 211 will not fall into the upstream guide chute 251 due to the stop of the baffles on both sides. Therefore, the upstream guide chute 251 is used to recover real impurities that have no use value. When the material 100 passes through the downstream section of the guide device 20, there are no baffles on the inside. For example, small material 100, incomplete material 100, and material 100 that is not stably supported but meets the requirements for subsequent screening and collection can fall from the inside of the linear strip 211 into the downstream guide chute 252. The material collected by the downstream guide chute 252 is not all impurities and still has reuse value.

[0047] Preferably, the distance between the two linear strips 211 is configured to be adjustable, so that materials 100 within a certain size range can be conveyed more stably, and materials 100 within different size ranges can also be conveyed. More preferably, the guide device 20 is configured to allow the distance between the two linear strips 211 to be adjustable without disassembling the guide drive roller 212.

[0048] like Figure 3As shown, this utility model provides a structure that allows the distance between two linear strips 211 to be adjusted without disassembling the guide drive roller 212. Specifically, annular grooves are provided at both ends of the roller body 2122 of the guide drive roller 212. The bottom of the annular groove defines the mandrel 2129. An adjusting sleeve 2123 is sleeved on the mandrel 2129 and located in the middle. Two movable sleeves 2124 are sleeved on the mandrel 2129 and located on both sides of the adjusting sleeve 2123. Annular grooves 2121 for positioning the linear strips 211 are arranged on the outer circumferential surface of the movable sleeves 2124. Two elastic components 2125 are... The adjusting sleeve 2123, the movable sleeve 2124, and the elastic member 2125 are sleeved on the mandrel 2129 and located outside the two movable sleeves 2124, that is, each elastic member 2125 is located between the movable sleeve 2124 and the groove wall of the annular groove. The movable sleeve 2124 is restricted from rotating by keying with the mandrel 2129, while allowing the movable sleeve 2124 to move axially. The adjusting sleeve 2123, the movable sleeve 2124, and the elastic member 2125 can be assembled onto the mandrel 2129 from the end of the roller body 2122, or they can all be configured as two interlocking bearings directly covering the mandrel 2129 and fixed to the bearings by fasteners. The elastic member 2125 is configured to be able to elastically expand and contract axially. For example, the elastic member 2125 can be a disc spring or an annular bag made of rubber and silicone. The adjusting sleeve 2123 has a radially through force-applying hole 2128. The radial inner section of the force-applying hole 2128 is machined with a threaded hole, and a set screw is screwed into the threaded hole. By tightening the set screw, the rotation of the adjusting sleeve 2123 can be restricted.

[0049] First wedge-shaped surfaces 2126 arranged circumferentially are provided on both end faces of the adjusting sleeve 2123, and second wedge-shaped surfaces 2127 arranged circumferentially are provided on the end faces of the movable sleeve 2124 opposite to the adjusting sleeve 2123. The first wedge-shaped surfaces 2126 and the second wedge-shaped surfaces 2127 cooperate. Thus, the adjusting sleeve 2123 can be directly turned by hand or with the help of a tool (such as a screwdriver) inserted into the force hole 2128 to turn the adjusting sleeve 2123. This allows the adjusting sleeve 2123 to adjust the distance between the two movable sleeves 2124 by means of the cooperation between the wedge-shaped surfaces and the elastic force of the elastic component 2125, thereby adjusting the distance between the two annular grooves 2121, and thus achieving the purpose of adjusting the two linear strips 211. After the adjustment is completed, the adjusting sleeve 2123 is fixed by turning the set screw in the force hole 2128 with a tool.

[0050] In this utility model, such as Figure 4 and Figure 5As shown, the visual recognition system is equipped with two visual recognition devices, which can be referred to as the upstream visual recognition device 41 and the downstream visual recognition device 42. The conveying platform 30 is divided into two sections, which can be referred to as the upstream conveying platform 31 and the downstream conveying platform 32. A gap 33 is provided between the downstream conveying platform 32 and the upstream conveying platform 31, and the downstream conveying platform 32 is slightly lower than the upstream conveying platform 31. The upstream end of the upstream conveying platform 31 is connected to the downstream end of the guiding device 20. The rejection device is arranged in the downstream section of the downstream conveying platform 32. Material 100 from the guiding device 20 first falls onto the upstream conveying platform 31. The upstream conveying platform 31 conveys material 100 and throws it out at its downstream end. The thrown material 100 passes through the gap 33 and falls onto the downstream conveying platform 32. The downstream conveying platform 32 conveys material 100 toward the rejection device. During the conveying process, two visual recognition devices photograph and classify the material 100. The rejection device changes the movement trajectory of the classified material 100 by blowing air and then collects it.

[0051] The upstream visual recognition device 41 is positioned below the conveyor platform 30 and near the gap 33. When the material 100 is thrown and passes through the gap 33, the upstream visual recognition device 41 captures an image of the material 100 from below to obtain image information of the lower surface of the material 100. The downstream visual recognition device 42 is positioned above the downstream conveyor platform 32. When the material 100 is conveyed by the downstream conveyor platform 32 and passes through the downstream visual recognition device 42, the downstream visual recognition device 42 captures an image of the material 100 from above to obtain image information of the upper surface of the material 100. Mirrors 60 are arranged at the gap 33 on both sides of the material 100's movement trajectory. Each mirror 60 has a mirror surface facing the side surface of the material 100 to create a side image of the material 100. The upstream visual recognition device 41 captures an image of the material 100 in both the physical object and the mirrors 60, thus simultaneously obtaining image information of the side surface of the material 100. Thus, by utilizing the upstream visual recognition device 41 and the downstream visual recognition device 42, image information of the bottom surface, side surface, and top surface of the material 100 can be obtained, thereby greatly increasing the proportion of image information of the material 100 surface acquired, and thus significantly improving the recognition accuracy and grading accuracy of the material 100. Preferably, the mirror 60 is mounted on the frame of the upstream conveying platform 31 or the frame of the downstream conveying platform 32 via the adjusting bracket 61. The posture of the mirror 60 can be adjusted by the adjusting bracket 61 to acquire appropriate side image information.

[0052] Furthermore, although exemplary embodiments have been described in this invention, its scope includes any and all embodiments based on this invention that have equivalent elements, modifications, omissions, combinations (e.g., schemes involving intersections of various embodiments), adaptations, or alterations. Elements in the claims will be interpreted broadly based on the language used in the claims and are not limited to the examples described in this specification or during the implementation of this application, which will be interpreted as non-exclusive. Therefore, this specification and examples are intended to be considered illustrative only, and the true scope and spirit are indicated by the following claims and the full scope of their equivalents.

[0053] The above description is intended to be illustrative and not restrictive. For example, the above examples (or one or more of them) can be used in combination with each other. Other embodiments can be used by those skilled in the art when reading the above description. Furthermore, in the above detailed description, various features may be grouped together to simplify the invention. This should not be construed as an intention that a disclosed feature not claimed is necessary for any claim. Rather, the subject matter of the invention may be less than all the features of a particular disclosed embodiment. Thus, the following claims are incorporated herein by reference as examples or embodiments, wherein each claim is an independent, separate embodiment, and these embodiments are contemplated to be combined with each other in various combinations or arrangements. The scope of the invention should be determined by reference to the appended claims and the full scope of their equivalents.

[0054] The above embodiments are merely exemplary embodiments of this utility model and are not intended to limit this utility model. The scope of protection of this utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this utility model within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this utility model.

Claims

1. A material feeding device located upstream of a conveying platform, characterized in that, The dispensing device includes: hopper; The feeding assembly includes a horizontal vibrating disc located below the hopper and at least two sequentially connected inclined vibrating discs located downstream of the horizontal vibrating disc; the inclined vibrating discs are provided with V-shaped guide grooves for guiding the material; wherein: The bottom of each of the horizontal and inclined vibratory discs is equipped with a tamping mechanism.

2. The feeding device according to claim 1, characterized in that, Each of the tilting vibratory discs is equipped with two V-shaped guide grooves.

3. The feeding device according to claim 1, characterized in that, The feeding assembly includes two components, which are arranged in parallel, and the horizontal vibratory feeders of both components are located below the hopper; wherein: The hopper is provided with a dividing component, which divides the interior of the hopper into hopper chambers corresponding to the two horizontal vibrating discs respectively. The dividing member has a V-shaped top, which is lower than the upper edge of the funnel.

4. The feeding device according to claim 2, characterized in that, The downstream end of the inclined vibratory plate forms a branch port corresponding to each V-shaped guide groove, and each branch port corresponds to a discharge port.

5. The feeding device according to claim 1, characterized in that, The funnel has a discharge port on its front wall, and an adjustment plate is provided above the discharge port to adjust the opening degree of the discharge port.

6. The feeding device according to claim 1, characterized in that, The inclined vibratory disc located upstream is equipped with retaining edges on both sides.

7. A vision selector, comprising: The conveying platform, the visual recognition system, and the rejection device are characterized in that the visual sorting machine further includes a material dispensing device as described in any one of claims 1 to 6 located upstream of the conveying platform.

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