A conveyor mechanism for material flipping

Abstract

This utility model relates to a conveying mechanism for material flipping, including a large conveyor belt mechanism, a small conveyor belt mechanism, and a feeding mechanism. The large conveyor belt mechanism is located at one end of the feeding mechanism, and the large and small conveyor belt mechanisms are located on the same side, with a part of the large conveyor belt mechanism located below the small conveyor belt mechanism. This allows the large and small conveyor belt mechanisms to be stacked, resulting in a simple and compact structure, increased adaptability, and reduced space occupation. A recess is provided in the middle of the large conveyor belt, and a transverse clamping plate is provided in the recess to fix materials such as chips in the groove, making them neat and orderly, while preventing chips from piling up and rubbing against each other, thus preventing damage to the chip surface. By setting a first driving roller, a first driven roller, a second driving roller, and a second driven roller, the arc of the large conveyor belt at the idler pulley can be made to deflect at an angle. When the deflection angle reaches a certain degree, materials such as chips fall onto the small conveyor belt, flipping the chips over.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor testing equipment technology, and in particular to a conveying mechanism for material flipping. Background Technology

[0002] When it is necessary to perform front and back inspection on a chip, traditional chip carriers cannot flip the chip. Therefore, an external flipping mechanism must be added to the chip to flip it. Then, a robotic arm places the flipped chip into the chip carrier for chip inspection.

[0003] Some chip flipping uses a flexible vibratory feeder. Its structure is as follows: a tray for holding chips, a vibrator below the tray, and a base below the vibrator. The vibrator drives the tray to make the chips bounce up, thus flipping the chips. Then, a camera on top of the tray takes a picture to confirm the front and back of the chips before proceeding to the next step.

[0004] It is obvious that the traditional chip flipping method takes a lot of time, requiring the equipment to wait for the vibratory feeder to complete a series of actions before proceeding to the next step. This results in excessive waiting time, which affects UPH (Uptime Per Hour) and reduces production efficiency. Furthermore, using traditional chip flipping technology often requires a separate machine with a flipping mechanism, which occupies a relatively large space. It cannot continuously supply the required chips, and the chips are prone to swarming and rubbing, causing damage to the chip surface. In addition, the cost is also significantly increased. Summary of the Invention

[0005] The purpose of this invention is to solve the above-mentioned problems by proposing a conveying mechanism for material flipping that has a simple structure, occupies little space, and can continuously provide chips of the required surface while preventing damage to the chip surface.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A conveying mechanism for material flipping includes a large conveyor belt mechanism, a small conveyor belt mechanism, and a feeding mechanism;

[0008] The large conveyor belt mechanism is an upper and lower structure. The large conveyor belt mechanism is located at one end of the feeding mechanism. The large conveyor belt mechanism and the small conveyor belt mechanism are located on the same side and are stacked. The upper surface of the small conveyor belt mechanism is lower than the upper surface of the large conveyor belt mechanism, and one end of the small conveyor belt mechanism is embedded in the upper and lower structure of the large conveyor belt mechanism.

[0009] In this specific embodiment, the large conveyor belt mechanism is provided with a large conveyor belt frame, on which a first driving roller, a first driven roller, and an idler wheel are provided. Each of the first driving roller, the first driven roller, and the idler wheel is connected to the large conveyor belt frame through a first belt bearing.

[0010] In this specific embodiment, the idler wheel is located in the upper and lower structures of the large conveyor belt mechanism and is set close to the large conveyor belt frame. There is one first driving roller, located at one end of the large conveyor belt frame near the feeding mechanism. There are three first driven rollers, two of which are located on the upper side of the large conveyor belt frame and the other is located on the lower side of the large conveyor belt frame. Each first driven roller is located at the end opposite to the direction of the first driving roller. There are two idler wheels.

[0011] In this specific embodiment, the first bearing with a mounting seat is fixed to the large conveyor belt frame by screws. The first bearing with a mounting seat has a round hole in the middle for passing through the two ends of each of the first driving roller, the first driven roller and the idler wheel, so that each of the first driving roller, the first driven roller and the idler wheel can rotate. The first driven roller located on the lower side of the large conveyor belt frame is further fixed to the large conveyor belt frame by a first tensioning member.

[0012] In this specific embodiment, both the large conveyor belt frame and the large conveyor belt are L-shaped, and the large conveyor belt is located inside the large conveyor belt frame and simultaneously wraps around the outer surfaces of the first driving roller and the first driven roller.

[0013] In this specific embodiment, the large conveyor belt has a recess in the middle, and a transverse clamping plate is provided in the recess to divide the middle part of the large conveyor belt into several grooves of equal size.

[0014] In this specific embodiment, a first servo motor is provided on the outer side of the large conveyor belt frame and at the end near the feeding mechanism. The first servo motor is fixedly connected to the large conveyor belt frame through a first motor mount.

[0015] In this specific embodiment, a camera is provided on the upper end of the large conveyor belt frame, and the camera is fixedly installed on the large conveyor belt frame by a camera mount. A light source is provided below the camera, and the light source is fixedly installed on the camera mount by a light source mount.

[0016] In this specific embodiment, the small conveyor belt mechanism includes, from bottom to top, a small conveyor belt base, a small conveyor belt frame, and a baffle, wherein the small conveyor belt base is mounted on the large conveyor belt frame.

[0017] In this specific embodiment, a second driving roller is provided at one end of the small conveyor belt frame, and a second driven roller is provided at the other end. There are two second driven rollers, which are arranged side by side, one above the other. The second driving roller is close to the first driving roller, and the second driven roller is close to the first driven roller. The second driving roller is connected to the small conveyor belt frame through a second belt bearing, and the second driven roller is connected to the small conveyor belt frame through a driven belt bearing. At the same time, the second driven roller is further fixed to the small conveyor belt frame through a second tensioning member.

[0018] In this specific embodiment, a second servo motor is installed on the small conveyor belt frame. The second servo motor drives the second drive roller to rotate. The second servo motor is fixedly connected to the small conveyor belt frame through a second motor mount.

[0019] In this specific embodiment, the small conveyor belt mechanism is further provided with a small conveyor belt, the upper surface of which is located below the light source seat, and the small conveyor belt wraps around the outer surfaces of the second driving roller and the second driven roller.

[0020] In this specific embodiment, the small conveyor belt base and the large conveyor belt frame, as well as the small conveyor belt frame and the small conveyor belt base, are fixedly connected by screws.

[0021] Compared with the prior art, the present invention provides the following beneficial effects:

[0022] This utility model places the large conveyor belt mechanism at one end of the feeding mechanism and the large conveyor belt mechanism and the small conveyor belt mechanism on the same side, so that the large conveyor belt mechanism and the small conveyor belt mechanism are stacked together, making the overall structure of the machine simple and compact. Compared with many large and small conveyor belt mechanisms with left and right structures on the market, it has increased adaptability and reduced space occupation.

[0023] By providing a recess in the middle of the large conveyor belt, and installing a transverse clamping plate inside the recess, the middle part of the large conveyor belt is divided into several grooves of equal size, which can better fix materials such as chips in the grooves, making them neat and orderly, while preventing chips from piling up and rubbing against each other, and preventing damage to the chip surface.

[0024] By setting a first driving roller, a first driven roller, a second driving roller, and a second driven roller, the arc of the large conveyor belt at the idler pulley can be deflected at an angle. When the deflection angle reaches a certain level, the chip and other materials fall freely onto the small conveyor belt, flipping the chip over. The feeding mechanism continues to replenish the material, and this cycle can continuously provide the required chip surface. Attached Figure Description

[0025] The above and other objects, features, and advantages of exemplary embodiments of the present disclosure will become readily apparent upon reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the present disclosure are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0026] Figure 1 This is a schematic diagram of the overall structure of the conveying mechanism for material flipping according to this utility model;

[0027] Figure 2 This is an overall schematic diagram of the large conveyor mechanism of the material flipping conveyor of this utility model;

[0028] Figure 3 This is an exploded view of the large conveying mechanism of the material turning conveying mechanism of this utility model;

[0029] Figure 4 This is an exploded view of the small conveying mechanism of the conveying mechanism for material flipping of this utility model;

[0030] Figure 5 This is a cross-sectional view of the conveying mechanism for material flipping according to this utility model.

[0031] Reference numerals: 100, Large conveyor mechanism; 101, Large conveyor belt frame; 102, First driving roller; 103, First driven roller; 104, Idler wheel; 105, First belt bearing; 106, First tensioning element; 107, Large conveyor belt; 108, Recess; 109, Transverse clamping plate; 110, First servo motor; 111, First motor base; 112, Camera; 113, Camera mount; 114, Light source; 115, Light source mount; 200, Small conveyor belt mechanism; 201, Small conveyor belt base; 202, Small conveyor belt frame; 203, Baffle; 204, Second driving roller; 205, Second driven roller; 206, Second belt bearing; 207, Driven belt bearing; 208, Second tensioning element; 209, Second motor base; 210, Second servo motor; 211, Small conveyor belt; 300, Feeding mechanism. Detailed Implementation

[0032] The technical solutions of the embodiments of this disclosure 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 disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0033] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0034] Traditional chip flipping mechanisms are time-consuming, have low production efficiency, occupy relatively large space, cannot continuously supply chips with the required face, and the chips are prone to clustering and friction, resulting in chip surface damage. In addition, the equipment costs are high.

[0035] In view of this, such as Figure 1 As shown, a conveying mechanism for material flipping includes a large conveyor belt mechanism 100, a small conveyor belt mechanism 200, and a feeding mechanism 300.

[0036] Specifically, the large conveyor belt mechanism 100 is located at one end of the feeding mechanism 300. The large conveyor belt mechanism 100 has a vertical structure and is located at one end of the feeding mechanism 300. The large conveyor belt mechanism 100 and the small conveyor belt mechanism 200 are located on the same side and are stacked. The upper surface of the small conveyor belt mechanism 200 is lower than the upper surface of the large conveyor belt mechanism 100, and one end of the small conveyor belt mechanism 200 is embedded in the vertical structure of the large conveyor belt mechanism 100. In this way, the stacked arrangement of the large conveyor belt mechanism 100 and the small conveyor belt mechanism 200 makes the overall structure of the machine simple and compact. Compared with many large conveyor belt mechanisms 100 and small conveyor belt mechanisms 200 with a horizontal structure on the market, it has increased adaptability and reduced space occupation.

[0037] Please refer to further information. Figures 2-5 The large conveyor belt mechanism 100 includes a large conveyor belt frame 101. The large conveyor belt frame 101 is equipped with a first driving roller 102, a first driven roller 103, and an idler wheel 104. Each of the first driving roller 102, first driven roller 103, and idler wheel 104 is connected to the large conveyor belt frame 101 via a first bearing 105. The idler wheel 104 is located within the upper and lower structures of the large conveyor belt mechanism 100 and is positioned close to the large conveyor belt frame 101. As a result, when the large conveyor belt 107 moves, it will form an arc at the idler wheel 104, thus creating a deflection angle. Specifically, each of the first driving roller 102, first driven roller 103, and idler wheel 104 has a cylindrical shaft (not shown) at both ends for passing through the first bearing 103.

[0038] Specifically, there is one first driving roller 102, located at one end of the large conveyor belt frame 101 near the feeding mechanism 300. There are three first driven rollers 103, with two first driven rollers 103 arranged side by side on the upper side of the large conveyor belt frame 101 and the other located on the lower side of the large conveyor belt frame 101. Each first driven roller 103 is located at the end opposite to the direction of the first driving roller 102. There are two idler wheels 104. Of course, the number of first driving rollers 102, first driven rollers 103, and idler wheels 104 can be increased according to actual needs.

[0039] Furthermore, the first seated bearing 105 is fixed to the large conveyor belt frame 101 by screws (not shown). Specifically, the first seated bearing 105 has a circular hole in the middle for the cylindrical shafts at both ends of each first driving roller 102, first driven roller 103, and idler wheel 104 to pass through, so that each first driving roller 102, first driven roller 103, and idler wheel 104 can rotate. The first driven roller 103 located on the lower side of the large conveyor belt frame 101 is further fixed to the large conveyor belt frame 101 by a first tensioning member 106, making the structure of the entire large conveyor belt frame 101 more stable.

[0040] Furthermore, both the large conveyor belt frame 101 and the large conveyor belt 107 are L-shaped. Of course, they can also be designed with any other shape depending on the actual situation. The large conveyor belt 107 is located within the frame of the large conveyor belt frame 101 and simultaneously wraps around the outer surfaces of the first driving roller 102 and the first driven roller 103. Specifically, a recess 108 is provided in the middle of the large conveyor belt 107, and several transverse clamping plates 109 are provided in the recess 108. The middle part of the large conveyor belt 107 is divided into several grooves of equal size, and the height of the transverse clamping plates 109 is higher than the upper surface of the large conveyor belt 107. This can better fix materials such as chips in the grooves, making them neat and orderly, while preventing chips from piling up and rubbing against each other, and preventing damage to the chip surface.

[0041] Furthermore, a first servo motor 110 is provided on the outer side of the large conveyor belt frame 101 and near the feeding mechanism 300. The first servo motor 110 is fixedly connected to the large conveyor belt frame 101 through a first motor base 111. Specifically, a through hole is provided on the first motor base 111. After the first drive roller 102 passes through the large conveyor belt frame 101, the first belt bearing 105, and the first motor base 111, its cylindrical shaft is inserted into the first servo motor 110, which drives it to rotate.

[0042] Furthermore, a camera 112 is provided at the upper end of the large conveyor belt frame 101. The camera 112 is fixedly mounted on the large conveyor belt frame 101 via a camera mount 113. A light source 114 is provided below the camera 112, and the light source 114 is fixedly mounted on the camera mount 113 via a light source mount 115. Specifically, the camera 112 and the camera mount 113, the light source 114 and the light source mount 115, and the light source mount 115 and the camera mount 113 are fixedly connected by screws. In this way, the camera 112 and the light source 114 can be stably mounted on the large conveyor belt frame 101, and their positions will not be offset, which can better capture the positioning of the chip.

[0043] Furthermore, the small conveyor belt mechanism 200 includes, from bottom to top, a small conveyor belt base 201, a small conveyor belt frame 202, and a baffle 203. The small conveyor belt base 201 is mounted on the large conveyor belt frame 113, so that the small conveyor mechanism 200 is stacked on top of the large conveyor mechanism 100, saving space.

[0044] Furthermore, one end of the small conveyor belt frame 202 is provided with a second driving roller 204, and the other end is provided with a second driven roller 205. Specifically, there are two second driven rollers 205, arranged side by side, one above the other. The second driving roller 204 is close to the first driving roller 102, and the second driven roller 205 is close to the first driven roller 103. Simultaneously, the second driving roller 205 is connected to the small conveyor belt frame 202 via a second bearing seat 206, and the second driven roller 205 is connected to the small conveyor belt frame 202 via a driven bearing seat 207. Additionally, the second driven roller 205 is further secured by a second tensioning member 208, thereby making the structure of the small conveyor belt frame 202 more stable.

[0045] Furthermore, a second servo motor 210 is installed on the small conveyor belt frame 202. The second servo motor 210 drives the second drive roller 204 to rotate. The second servo motor 210 is fixedly connected to the small conveyor belt frame 202 through a second motor base 209. Specifically, a through hole is provided on the second motor base 209. After the second drive roller 204 passes through the small conveyor belt frame 202, the second belt bearing 206, and the second motor base 209, its cylindrical shaft is inserted into the second servo motor 210, which drives it to rotate.

[0046] Furthermore, the small conveyor belt mechanism 200 also includes a small conveyor belt 211, on which a baffle 203 is provided. The baffle 203 can confine materials such as chips within a certain range. The small conveyor belt 211 wraps around the outer surfaces of the second driving roller 204 and the second driven roller 205, and the upper surface of the small conveyor belt 211 is located below the light source seat 115. In this way, the camera 112 of the large conveyor mechanism 100 can be used to photograph materials such as chips, shortening the distance between the chips and other materials from the small conveyor belt mechanism 200 to the large conveyor belt mechanism 100. Specifically, the small conveyor belt base 201 and the large conveyor belt frame 101, and the small conveyor belt frame 202 and the small conveyor belt base 201 are all fixedly connected by screws.

[0047] The working principle of this utility model is as follows: The device feeds materials such as chips into the feeding mechanism 300, which then transports the materials onto the large conveyor belt 107 located in the large conveying mechanism 100. Because the first servo motor 110 drives the first active roller 102 to rotate, and the first active roller 102 drives the first driven roller 103, which is wrapped by the large conveyor belt 107, the materials such as chips move by rotating counterclockwise through the large conveyor belt 107.

[0048] Meanwhile, several transverse clamping plates 109 are provided in the recess 108 in the middle of the large conveyor belt 107, dividing the middle of the large conveyor belt 107 into several grooves of equal size. The height of the transverse clamping plates 109 is higher than the upper surface of the large conveyor belt 107, which can better fix the chips and other materials in the grooves, making them neat and orderly. When the chips and other materials are transported to the point near the exit of the second driven roller 205, the transverse clamping plates 109 of the large conveyor belt 107 neatly arrange the chips and other materials. Due to the curvature of the large conveyor belt 107 at the idler wheel 104, an angle is generated. When the angle reaches a certain degree, the chips and other materials fall freely onto the small conveyor belt 211. This process flips the chips. At this time, the second servo motor 210 drives the second active roller 204 and the second driven roller 205 to rotate clockwise. The chip and other materials continue to move to the right by the clockwise rotation of the small conveyor belt 211. The camera 112 takes pictures in real time and analyzes the front and back sides and positional relationship of the chip and other materials. Then, the chip is positioned by the built-in code of the second servo motor 210. When the chip moves to the camera 112, the chip on the required side is taken away by the external mechanism. The remaining chips continue to move and fall onto the large conveyor belt 107. During this process, the chips can also be flipped. When the number of chips taken away by the external mechanism reaches a certain number, the feeding mechanism 300 continues to replenish the material. This cycle continues, and chips on the required side can be provided continuously.

[0049] In the foregoing description of this specification, unless otherwise expressly specified and limited, the terms "fixed," "installed," "connected," or "linked" should be interpreted broadly. For example, the term "linked" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can refer to the internal communication of two components or the interaction between two components. Therefore, unless otherwise expressly limited in this specification, those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0050] Based on the above description in this specification, those skilled in the art will also understand that terms used, such as "upper," "lower," "front," "rear," "left," "right," "length," "width," "thickness," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "center," "longitudinal," "transverse," "clockwise," or "counterclockwise," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not imply that the devices or elements involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0051] Furthermore, the terms "first" or "second," etc., used in this specification to refer to numbers or ordinal numbers are for descriptive purposes only and should not be construed as indicating, explicitly or implicitly, relative importance or specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this specification, "a plurality of" means at least two, such as two, three, or more, unless otherwise explicitly specified.

[0052] While various embodiments of the invention have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and essence of the invention. It should be understood that various alternatives to the embodiments of the invention described herein may be employed in the practice of the invention. The appended claims are intended to define the scope of protection of the invention and therefore cover modular compositions, equivalents, or alternatives within the scope of these claims.

Claims

1. A conveying mechanism for material inversion, characterized in that, This includes a large conveyor belt mechanism, a small conveyor belt mechanism, and a feeding mechanism; The large conveyor belt mechanism is an upper and lower structure. The large conveyor belt mechanism is located at one end of the feeding mechanism. The large conveyor belt mechanism and the small conveyor belt mechanism are located on the same side and are stacked. The upper surface of the small conveyor belt mechanism is lower than the upper surface of the large conveyor belt mechanism, and one end of the small conveyor belt mechanism is embedded in the upper and lower structure of the large conveyor belt mechanism.

2. The conveying mechanism for material overturning according to claim 1, characterized in that, The large conveyor belt mechanism is provided with a large conveyor belt frame. The large conveyor belt frame is provided with a first driving roller, a first driven roller, and an idler wheel. Each of the first driving roller, the first driven roller, and the idler wheel is connected to the large conveyor belt frame through a first belt bearing.

3. The conveying mechanism for material overturning according to claim 2, characterized in that, The idler wheel is located in the upper and lower structure of the large conveyor belt mechanism and is set close to the large conveyor belt frame. There is one first driving roller, located at one end of the large conveyor belt frame near the feeding mechanism. There are three first driven rollers, two of which are located on the upper side of the large conveyor belt frame and the other is located on the lower side of the large conveyor belt frame. Each first driven roller is located at the end opposite to the direction of the first driving roller. There are two idler wheels.

4. The conveying mechanism for material overturning according to claim 2, characterized in that, The first bearing with a seat is fixed to the large conveyor belt frame by screws. The first bearing with a seat has a round hole in the middle for passing through the two ends of each of the first driving roller, the first driven roller and the idler wheel, so that each of the first driving roller, the first driven roller and the idler wheel can rotate. The first driven roller located on the lower side of the large conveyor belt frame is further fixed to the large conveyor belt frame by a first tensioning member.

5. The conveying mechanism for material overturning according to claim 2, characterized in that, Both the large conveyor belt frame and the large conveyor belt are L-shaped, and the large conveyor belt is located inside the large conveyor belt frame and simultaneously wraps around the outer surfaces of the first driving roller and the first driven roller.

6. The conveying mechanism for material overturning according to claim 5, characterized in that, The large conveyor belt has a recess in the middle, and a transverse clamping plate is provided in the recess to divide the middle part of the large conveyor belt into several grooves of equal size.

7. The conveying mechanism for material overturning according to claim 2, characterized in that, A first servo motor is provided on the outer side of the large conveyor belt frame and at the end near the feeding mechanism. The first servo motor is fixedly connected to the large conveyor belt frame through a first motor mount.

8. The conveying mechanism for material overturning according to claim 2, characterized in that, A camera is provided at the upper end of the large conveyor belt frame. The camera is fixedly mounted on the large conveyor belt frame by a camera mount. A light source is provided below the camera. The light source is fixedly mounted on the camera mount by a light source mount.

9. The conveying mechanism for material overturning according to claim 8, characterized in that, The small conveyor belt mechanism includes, from bottom to top, a small conveyor belt base, a small conveyor belt frame, and a baffle, wherein the small conveyor belt base is mounted on the large conveyor belt frame.

10. The conveying mechanism for material overturning according to claim 8, characterized in that, One end of the small conveyor belt frame is provided with a second driving roller, and the other end is provided with a second driven roller. There are two second driven rollers, which are arranged side by side, one above the other. The second driving roller is close to the first driving roller, and the second driven roller is close to the first driven roller. The second driving roller is connected to the small conveyor belt frame through a second belt bearing, and the second driven roller is connected to the small conveyor belt frame through a driven belt bearing. At the same time, the second driven roller is further fixed to the small conveyor belt frame through a second tensioning member.

11. The conveying mechanism for material overturning according to claim 8, characterized in that, A second servo motor is installed on the small conveyor belt frame. The second servo motor drives the second drive roller to rotate. The second servo motor is fixedly connected to the small conveyor belt frame through a second motor mount.

12. The conveying mechanism for material overturning according to claim 8, characterized in that, The small conveyor belt mechanism is further provided with a small conveyor belt, the upper surface of which is located below the light source seat, and the small conveyor belt wraps around the outer surfaces of the second driving roller and the second driven roller.

13. The conveying mechanism for material overturning according to claim 9, characterized in that, The small conveyor belt base and the large conveyor belt frame, as well as the small conveyor belt frame and the small conveyor belt base, are all fixedly connected by screws.

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