Indocalamus leaf sorting machine

Abstract

The indocalamus leaf sorting machine comprises a machine body, a conveying module, an image collecting module, a sorting module and a control module, the conveying module penetrates through the machine body, a first pressing roller, a second pressing roller and a first driving motor are further arranged in the image collecting module, and the first driving motor drives the first pressing roller and the second pressing roller to rotate synchronously in the reverse direction. The sorting module comprises a plurality of sorting mechanisms, each sorting mechanism comprises a discharging plate arranged on the conveying path of the conveying module, and a discharging opening is opened / closed through rotation of the discharging plate. And the control module is electrically connected with the conveying module, the image acquisition module and the sorting module and generally coordinates and controls all the modules to operate. According to the chequer-shaped indocalamus leaf sorting machine, curled chequer-shaped indocalamus leaves can be flattened under the combined action of the first compression roller, the second compression roller and the conveying module, accurate image acquisition is carried out, and efficient and accurate sorting is carried out through a discharging plate structure in the sorting module according to a preset grading range.

Description

TECHNICAL FIELD

[0001] The utility model relates to the bamboo leaf processing field, concretely relates to the bamboo leaf sorting machine field. BACKGROUND

[0002] As a traditional festival food of Chinese nation, the quality of bamboo leaf, the raw material of zongzi, directly affects the quality and taste of the final product. In the bamboo leaf processing industry, the traditional manual sorting method mainly relies on the operator's naked eye observation of the size, integrity and color of the bamboo leaf to grade and screen, which not only has high labor intensity and low efficiency, but also is affected by subjective factors, leading to the difficulty in unifying the sorting standard and the poor consistency of different batches of products. In recent years, with the development of machine vision technology, automatic bamboo leaf sorting equipment has been gradually applied to production practice, but the existing technical solutions still have obvious deficiencies: because the bamboo leaf raw material generally has curling condition, the conventional planar imaging system is difficult to accurately identify the actual size. SUMMARY

[0003] Therefore, one purpose of the utility model is to provide a bamboo leaf sorting machine which can accurately collect images of bamboo leaves with different curling degrees.

[0004] The utility model embodiment provides a kind of bamboo leaf sorting machine, including body, still include:

[0005] Conveying module, the conveying module runs through the body;

[0006] Image acquisition module, the image acquisition module includes image collector, first compression roller, second compression roller and first drive motor, and the first drive motor drives the first, second compression roller reverse synchronous rotation;

[0007] Sorting module, the sorting module contains several sorting mechanisms;

[0008] Control module, the control module is electrically connected with the conveying module, image acquisition module and sorting module.

[0009] Further, the image acquisition module further includes fixed plate and lower pressing plate, the fixed plate is fixedly connected with the body, the lower pressing plate is connected with the fixed plate by linear guide rail, the first and second compression rollers are connected with the lower pressing plate by lower pressing arm, and a second drive motor is further fixedly arranged on the lower pressing plate, and the second drive motor drives the lower pressing plate to move vertically.

[0010] Further, the second drive motor and the lower pressing plate are driven by synchronous belt.

[0011] Further, the first and second compression rollers are connected with the conveying module by mounting bracket.

[0012] Further, the sorting mechanism comprises a rotatable discharging plate and a third driving motor for driving the discharging plate, the discharging plate rotates upward to open the discharging port and rotates downward to a horizontal position to close the discharging port.

[0013] Further, the sorting mechanism further comprises a third pressing roller, a fourth pressing roller and a fourth driving motor, the third and fourth pressing rollers are arranged in front of and behind the discharging plate respectively, are connected with the conveying module through mounting brackets and are driven to rotate reversely synchronously by the fourth driving motor.

[0014] Further, the mounting bracket is adjustable in height.

[0015] Further, the outer rings of the first, second, third and fourth pressing rollers are made of elastic material.

[0016] Further, the control module comprises a touch screen, an industrial computer and a programmable logic controller, the industrial computer is electrically connected with the image collector, the programmable logic controller receives instructions from the industrial computer and drives the first, second, third and fourth driving motors to work coordinately.

[0017] Further, photoelectric sensors are arranged in front of the image collecting module and each sorting mechanism.

[0018] The shell assembly and the battery module have the following advantages:

[0019] The first and second pressing rollers are arranged in the image collecting module to flatten the bamboo leaves, and the image collecting is carried out in the flattened state, so that the accuracy of image collecting is ensured.

[0020] Meanwhile, the discharging plate is arranged on the conveying path of the conveying module, so that the structure of the sorting device is simplified, and the sorting efficiency and reliability are improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from the structure shown in the drawings without creative labor.

[0022] Figure 1 is a schematic diagram of the appearance of the bamboo leaf sorting machine provided by the embodiments of the present application;

[0023] Figure 2 is a schematic diagram of internal components of the bamboo leaf sorting machine provided by the embodiments of the present application;

[0024] Figure 3It is the automatic lifting structure schematic view of the first and second compression rollers provided by the embodiment of the utility model;

[0025] Figure 4 It is the schematic view of the lower pressing plate and related components provided by the embodiment of the utility model;

[0026] Figure 5 It is the manual height adjusting structure schematic view of the first and second compression rollers provided by the embodiment of the utility model;

[0027] Figure 6 It is the explosion view of the mounting bracket provided by the embodiment of the utility model;

[0028] Figure 7 It is the schematic view of the third and fourth compression rollers and the mounting bracket thereof provided by the embodiment of the utility model;

[0029] Figure 8 It is the schematic view of the lower plate opening position provided by the embodiment of the utility model.

[0030] Explanation of figure mark: fuselage 1, conveying module 2, first conveying mechanism 21, second conveying mechanism 22, image acquisition module 3, image collector 30, image acquisition area 300, first compression roller 301, second compression roller 302, first drive motor 303, first transmission mechanism 309, transmission pulley 3090, first wheel groove 3091, second wheel groove 3092, third wheel groove 3093, first synchronous belt 3096, fixed plate 304, lower pressing plate 305, linear guide rail 306, lower pressing arm 307, second drive motor 308, transmission gear 3101, driven roller 3102, second synchronous belt 3103, connecting block 3104, sorting module 4, sorting mechanism 40, lower plate 401, through surface 4010, material guiding surface 4011, third drive motor 402, lower outlet 403, third compression roller 405, fourth compression roller 406, fourth drive motor 407, third synchronous belt 408, control module 5, touch screen 50, mounting bracket 6, top plate 60, mounting column 61, convex rail 610, long hole 611, lifting plate 62, sliding groove 620, fixed seat 63, long screw 64, rotating wheel 65, first nut 66, second nut 67, spring 68, photoelectric sensor 7. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0032] AsFigure 1 , 2 As shown, this utility model provides a bamboo leaf sorting machine, including a machine body 1, a conveying module 2, an image acquisition module 3, a sorting module 4, and a control module 5.

[0033] The conveying module 2 runs through the machine body 1. Along the conveying direction of the conveying module 2, an image acquisition module 3, a control module 5, and a sorting module 4 are arranged sequentially. Figure 3 As shown, the image acquisition module 3 includes an image acquisition unit 30 disposed above the conveying module 2. The image acquisition unit 30 can specifically be a line scan camera. The image acquisition unit 30 is fixedly connected to the body 1, specifically through a direct connection method such as bolts or clips, or indirectly through a bracket. These connection methods are conventional techniques in the field and therefore are not described in detail. Figure 2 , 3 As shown in Figure 5.

[0034] A first pressure roller 301 and a second pressure roller 302 are also provided between the image acquisition device 30 and the conveying module 2. The first and second pressure rollers are parallel to each other and spaced apart, forming an image acquisition area 300 between them, and the image acquisition device 30 is positioned above the image acquisition area 300. The first and second flattening rollers are driven to rotate synchronously in opposite directions by the first drive motor 303, and image acquisition is performed while the bamboo leaves are flattened by the first and second pressure rollers.

[0035] Preferably, the first and second pressure rollers are configured with an active lifting structure. Before the bamboo leaf enters the image acquisition module 3, the first pressure roller 301 is at its highest position, and begins to press down as the bamboo leaf enters, until the first pressure roller 301 reaches its lowest position. This structure increases the compatibility of the first pressure roller 301 with the degree of curling of the incoming bamboo leaf. The specific structure is described below:

[0036] like Figure 3 , 4 As shown, the image acquisition module 3 also includes a fixed plate 304 and a lower pressure plate 305 vertically disposed above the conveying module 2. The fixed plate 304 is fixedly connected to the machine body 1, and the fixed plate 304 and the lower pressure plate 305 are connected by two vertically aligned linear guide rails 306. The lower pressure plate 305 can move vertically up and down relative to the fixed plate 304 along the linear guide rails 306.

[0037] Two lower pressure arms 307 are fixedly connected to both sides of the lower pressure plate 305, and the first and second pressure rollers are rotatably installed between the two lower pressure arms 307.

[0038] A second drive motor 308 is mounted on a fixed plate 304. A transmission gear 3101 is mounted on the output shaft of the second drive motor 308. A driven roller 3102 is mounted on the fixed plate 304 corresponding to the transmission gear 3101. A second synchronous belt 3103 connects the transmission gear 3101 and the driven roller 3102. A lower pressure plate 305 is fixedly connected to the second synchronous belt 3103 via a connecting block 3104. The second drive motor 308 drives the lower pressure plate 305 to move vertically up and down along the linear guide rail 306 via the second synchronous belt 3103.

[0039] In some embodiments, the transmission between the second drive motor 308 and the lower pressure plate 305 can also be a belt drive or a screw drive, such as a V-belt drive or a screw and nut drive.

[0040] Optionally, the first and second pressure rollers can be configured with manually adjustable height. When the batch curling difference of the bamboo leaves is small, the first and second pressure rollers do not need a lifting structure; instead, a simpler, manually adjustable mounting bracket 6 can be used for fixing. Figure 5 As shown, the installation height of the first and second pressure rollers can be adjusted and locked during the initialization phase of the sorting machine. The specific structure of the adjustable height mounting bracket 6 is described below:

[0041] like Figure 6 As shown, the mounting bracket 6 includes a top plate 60, four mounting columns 61, two lifting plates 62, and two fixed seats 63. The four mounting columns 61 are fixed between the top plate 60 and the two fixed seats 63. The lifting plates 62 are connected between the two mounting columns 61, and the first pressure roller 301 is rotatably fixed between the two lifting plates 62. A protruding rail 610 is provided vertically on the side of the mounting column 61 facing the lifting plate 62. The lifting plates 62 have concave grooves 620 on both sides. The lifting plates 62 are coupled between the two mounting columns 61 through the grooves 620 and the rails 610, and only the vertical degree of freedom is retained under the coupling of the grooves 620 and the rails 610. The mounting bracket 6 also includes two long screws 64. The top of the long screws 64 is connected to a rotating wheel 65 and passes through the threaded hole of the top plate 60. The bottom of the long screws 64 is threadedly connected to the lifting plates 62 and fastened by a first nut 66. Between the top plate 60 and the lifting plate 62, a long screw 64 is fitted with a spring 68 and secured by a second nut 67. When adjusting the height of the lifting plate 62, the first nut 66 is loosened, and the rotating wheel 65 is rotated so that the long screw 64 can adjust the height of the lifting plate 62, thereby adjusting the height of the first pressure roller 301 and the second pressure roller 302; adjusting the second nut 67 can adjust the deformation of the spring 68, thereby adjusting the damping of the rotating wheel 65.

[0042] Based on the structure of the mounting bracket 6, the height of the first and second compression rollers can be quickly and conveniently adjusted during the initialization stage or debugging stage of the sorting machine.

[0043] In order to smoothly pass the reed between the first / second compression roller and the conveying module 2, whether using a positive lifting structure or a manual adjustment structure, the first and second compression rollers need to be driven by the first driving motor 303 to rotate in reverse synchronization, that is, the rotation direction A of the first and second compression rollers is opposite to the conveying direction S of the conveying module 2, and the surface linear speed is the same as the conveying speed of the conveying module 2. For reference, Figure 8

[0044] As shown in Figure 3 , 4 , in the embodiment using the positive lifting structure, the first driving motor 303 is fixedly connected to the lower pressing plate 305, and the first and second compression rollers are driven to rotate in reverse synchronization by the round belt. Specifically, a transmission belt pulley 3090 is sleeved on the output shaft of the first driving motor 303, a first wheel groove 3091 is arranged on the same side of the first compression roller, and a second wheel groove 3092 and a third wheel groove 3093 are arranged on the same side of the second compression roller 302. The transmission belt pulley 3090 and the third wheel groove 3093 are connected by a round belt, and the first wheel groove 3091 and the second wheel groove 3092 are also connected by a round belt, so that the driving force of the first driving motor 303 is transmitted to the first and second compression rollers at the same time.

[0045] As shown in Figure 5 , in the embodiment using the manual adjustment structure, the first driving motor 303 is arranged below the first and second compression rollers, is fixedly connected to the machine body 1, and can be installed and adjusted in the vertical direction. The first driving motor 303 is connected to the first and second compression rollers by the first synchronous belt 3096 and transmits the driving force.

[0046] In some embodiments of the utility model using the manual adjustment structure, the height adjustment of the first compression roller 301, the second compression roller 302 and the first driving motor 303 can also adopt other structures commonly used by those skilled in the art, for example, the first compression roller 301 is embedded in the corresponding groove of the mounting column 61 for height adjustment by the lifting plate 62, and the first driving motor 303 is arranged on the mounting bracket with multiple holes for step height adjustment.

[0047] A sorting module 4 is arranged behind the image acquisition module 3, and the sorting module 4 is composed of a plurality of sorting mechanisms 40 arranged along the conveying module 2, as shown in Figure 2 Figure 2 In order to show the discharging plate 401, some elements in the sorting mechanism 40 are appropriately hidden. The sorting mechanism 40 mainly includes a discharging plate 401, which is embedded in the conveying module 2. The specific structure is as shown in Figure 7 ​​As shown, the conveying module 2 is disconnected at the sorting mechanism 40, and in the conveying path direction of the conveying module 2, the input end of the conveying module 2 receiving the bamboo leaves is defined as "front", the output end of the conveying module 2 outputting the bamboo leaves is defined as "rear", the first conveying mechanism 21 is in front of the sorting mechanism 40, and the second conveying mechanism 22 is defined as rear. The cross section of the blanking plate 401 is triangular as a whole, is provided with a passing surface 4010 and a guide surface 4011, and is further provided with a rotating shaft 4012 at a thicker end, which is connected with the machine body 1 or the conveying module 2 near the second conveying mechanism 22.

[0048] The third driving motor 402 is further fixedly arranged on the machine body 1, is connected with the rotating shaft 4012 of the blanking plate 401, and drives the blanking plate 401 to rotate and switch between the open position and the closed position. When the blanking plate 401 is turned upward around the rotating shaft 4012 to the open position, the guide surface 4011 of the blanking plate 401 faces the first conveying mechanism 21, and the guide surface 4011 and the rear end of the first conveying mechanism 21 form a blanking port 403, and a blanking passage 404 is arranged below the blanking port 403. When the blanking plate 401 is rotated downward around the rotating shaft 4012 to the closed position, the blanking plate 401 is in a horizontal state, the blanking port 403 is closed by the blanking plate 401, and the passing surface 4010 of the blanking plate 401 is at the same height or slightly lower than the conveying surfaces of the first and second conveying mechanisms.

[0049] Preferably, the connection between the blanking plate 401 and the third driving motor 402 is synchronous belt connection.

[0050] Optionally, in some embodiments of the utility model, the connection between the blanking plate 401 and the third driving motor 402 is gear connection.

[0051] Preferably, the sorting mechanism 40 further comprises a third compression roller 405 and a fourth compression roller 406, as shown in the drawings. Figure 7 The third compression roller 405 and the fourth compression roller 406 are respectively arranged in front of and behind the blanking plate 401, that is, the third compression roller 405 is arranged at the rear end of the first conveying mechanism 21, and the fourth compression roller 406 is arranged at the front end of the second conveying mechanism 22. The third compression roller 405 and the fourth compression roller 406 are respectively connected with the machine body 1 through mounting brackets 6, and the structure of the mounting bracket 6 is the same as that of the mounting bracket 6 in the first and second compression roller manual adjusting structures, and details are not repeated. As shown in the drawings, Figure 7 The fourth driving motor 407 is installed between the two mounting brackets 6, is connected with the third compression roller 405 and the fourth compression roller 406 at the same time through the third synchronous belt 408, and drives the third and fourth compression rollers to rotate in opposite directions, that is, the rotating direction A is opposite to the conveying direction S of the first conveying mechanism 21, and the linear velocity of the compression roller surface is the same as the conveying speed of the first conveying mechanism 21, as shown in the drawings. Figure 8 ​

[0052] In the working condition that the blanking plate 401 is in the open position, the third pressing roller 405 and the first conveying mechanism 21 jointly push the bamboo leaves, ensuring that the bamboo leaves enter the blanking port 403 under the guidance of the guide surface 4011; in the working condition that the blanking plate 401 is in the closed position, the third pressing roller 405, the first conveying mechanism 21, the fourth pressing roller 406 and the second conveying mechanism 22 jointly push the bamboo leaves, ensuring that the bamboo leaves smoothly pass through the non-powered passing surface 4010.

[0053] Preferably, the outer ring of each pressing roller in the embodiment of the utility model is made of elastic material, which can increase the friction force and reduce the pressure loss of the bamboo leaves. Here, "each pressing roller" refers to any one or several of the first, second, third and fourth pressing rollers.

[0054] The control module 5 includes a touch screen 50, an industrial computer 51 and a programmable logic controller 52, wherein the industrial computer 51 refers to a computing device specially used for industrial automation control system, aiming to monitor, control and coordinate various devices and machines in industrial processes. The industrial computer 51 and the programmable logic controller 52 can be flexibly set according to actual conditions, and the specific positions are not explicitly shown in the figure. Figure 1 The touch screen 50 is flush with the side shell of the machine body 1 and communicates with the industrial computer 51 through Ethernet, which is used to set sorting parameters (such as size threshold) and display the running state of the equipment. Specifically, it can adopt Kunlun TPC7032Ni-4G. The image collector 30 is directly connected with the industrial computer 51 through GigE interface, and the industrial computer 51 calculates the size of the bamboo leaves in real time by using visual algorithm. The programmable logic controller 52 receives the instructions of the industrial computer 51 and drives the first, second, third and fourth drive motors to work cooperatively. Specifically, it can adopt the XD5E-60T6-E type PLC of Xunjie to receive the sorting instructions of the industrial computer 51 through Modbus TCP protocol, and cooperate with its expansion module XD5-E16Y to provide 16-way output. The control module 5 cooperatively controls each actuating mechanism as follows:

[0055] The conveying module 2 sends the bamboo leaves into the image acquisition module 3, the image acquisition module 3 acquires the image of the bamboo leaves under the condition that the first and second compression rollers are used to flatten the bamboo leaves, and transmits relevant signals to the industrial computer 51; the industrial computer 51 analyzes and processes the image information of the bamboo leaves in real time, completes grading, and sends corresponding control instructions to the programmable logic controller 52, and the programmable logic controller 52 drives the corresponding sorting module 4 to perform corresponding actions; the conveying module 2 continues to send the bamboo leaves into the sorting module 4, and when the bamboo leaves pass through other grading sorting mechanisms 40, the discharge plates 401 are all in the closed position, until the bamboo leaves are sent in front of the corresponding grading sorting mechanism 40, the third drive motor 402 of the corresponding grading sorting mechanism 40 is started according to the output signal of the programmable logic controller 52, and drives the discharge plate 401 of the sorting mechanism 40 to rotate upwards to the open position, opens the discharge port 403, the bamboo leaves enter the discharge channel 404 through the discharge port 403 under the guidance of the guide surface 4011, and the programmable logic controller 52 outputs the signal to control the third drive motor 402 to be started again, and drives the discharge plate 401 to rotate to the horizontal position, and closes the discharge port 403.

[0056] In some embodiments of the first and second compression rollers adopting the lifting structure, the control module 5 also needs to output a control signal to start the second drive motor 308 to drive the lower pressing plate 305 to press down when the bamboo leaves are conveyed in front of the first compression roller 301, and output a control signal to start the second drive motor 308 again to drive the lower pressing plate 305 to rise to the initial highest position after the bamboo leaves leave the image acquisition module 3.

[0057] In some embodiments of the first and second compression rollers adopting the manual adjustment structure, the control module 5 needs to control the first drive motor 303 to be started and stopped synchronously with the starting and stopping of the conveying module 2.

[0058] The fourth drive motor 407 in the sorting mechanism 40 also needs to be controlled by the control module 5 to be started and stopped synchronously with the conveying module 2.

[0059] In some embodiments of the utility model, the feeding frequency of the conveying module 2 is uniform and constant, that is, the interval between the bamboo leaves conveyed by the conveying module 2 is specific and constant, the conveying module 2 uniformly conveys the bamboo leaves, and the starting time of the second and third drive motors can be calculated by the control module 5 according to the feeding frequency, the speed of the conveying module 2 and relevant control logic.

[0060] Optionally, photoelectric sensors 7 are arranged in front of the image acquisition module 3 and in front of each sorting mechanism 40, the photoelectric sensors 7 are installed on the conveying module 2 and are electrically connected with the control module 5. The photoelectric sensors 7 can accurately detect the incoming bamboo leaves and input relevant signals to the control module 5, so that the control module 5 can accurately control the starting and stopping of the second drive motor 308 in the image acquisition module 3 and each third drive motor 402 in the sorting module 4.

[0061] Optionally, the photoelectric sensor 7 arranged in front of the image acquisition module 3 is electrically connected with the image acquisition device 30 and directly participates in the relevant control of the image acquisition device 30.

[0062] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture, and if the specific posture changes, the directional indications will also change accordingly.

[0063] It should also be noted that when an element is referred to as being "fixed" or "arranged" on another element, it can be directly on the other element or can also have a centering element in between. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or can also be indirectly connected to the other element through a centering element.

[0064] In addition, the descriptions involving "first", "second" and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection required by the present application.

[0065] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, any equivalent structural transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A machine for sorting bamboo leaves, comprising a machine body (1), characterized in that, Also include: Conveying module (2), the conveying module (2) throughout the fuselage (1); Image acquisition module (3), the image acquisition module (3) includes image collector (30), first pressure roller (301), second pressure roller (302) and first drive motor (303), the first drive motor (303) drives the first, second pressure roller (301, 302) reverse synchronous rotation; Sorting module (4), the sorting module (4) contains several sorting mechanism (40); Control module (5), the control module (5) and the conveying module (2), image acquisition module (3) and sorting module (4) are electrically connected.

2. The machine for sorting of the leaves of the canna indica plant as claimed in claim 1 wherein, The image acquisition module (3) further includes fixed plate (304) and lower pressing plate (305), the fixed plate (304) is fixedly connected with the fuselage (1), the lower pressing plate (305) is connected with the fixed plate (304) through linear guide (306), the first, second pressure roller (301, 302) is connected with the lower pressing plate (305) through lower pressing arm (307), and the second drive motor (308) is further fixedly arranged on the lower pressing plate (305), the second drive motor (308) drives the lower pressing plate (305) vertical motion.

3. The machine of claim 2, wherein, The second drive motor (308) and the lower pressing plate (305) are driven by synchronous belt transmission.

4. The machine of claim 1, wherein, The first, second pressure roller (301, 302) is connected with the conveying module (2) through the mounting bracket (6).

5. The machine of claim 1, wherein, The sorting mechanism (40) includes rotatable discharge plate (401), and third drive motor (402) for driving the discharge plate (401), the discharge plate (401) rotates upward to open the discharge port (403), and rotates downward to the horizontal position to close the discharge port (403).

6. The machine of claim 5, wherein, The sorting mechanism (40) further includes third pressure roller (405), fourth pressure roller (406) and fourth drive motor (407), the third, fourth pressure roller (405, 406) is arranged in front of and behind the discharge plate (401) respectively, and is connected with the conveying module (2) through the mounting bracket (6), and is driven by the fourth drive motor (407) to rotate reversely.

7. The machine of claim 4 or 6, wherein The mounting bracket (6) can adjust the height.

8. The machine of claim 6, wherein, The outer ring of the first, second, third and fourth pressure roller (301, 302, 405, 406) is made of elastic material.

9. The machine of claim 6, wherein, The control module (5) includes touch screen (50), industrial computer (51) and programmable logic controller (52), the industrial computer (51) is electrically connected with the image collector (30), the programmable logic controller (52) receives the instruction of the industrial computer (51), and drives the first, second, third and fourth drive motor (303, 308, 402, 407) to work cooperatively.

10. The machine of claim 9, wherein, Photoelectric sensor (7) is arranged in front of the image acquisition module (3) and each sorting mechanism (40).

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