Material conveying device

Abstract

The utility model relates to a material conveying device which comprises a supporting frame, a conveying mechanism and a waste discharging mechanism. Materials can sequentially enter the conveying channel to be conveyed. Good materials can be continuously conveyed to the downstream according to the original conveying path after being output by the conveying channel; and when the NG material is detected, the waste discharge driving piece is started and drives the guide piece to guide the NG material into the waste discharge channel. At the moment, the NG materials are conveyed to the downstream of the waste discharge channel under the cooperation of the second driven roller and the driving roller, and therefore waste discharge is achieved. As driving force is provided by the driving roller in the waste discharging process of the NG materials and does not depend on the self weight of the materials, waste discharging is not limited by the size of the materials. And the NG material can smoothly pass through the waste discharge channel under the driving of the driving roller, so that the NG material is completely separated from the conveying path of the non-defective material to avoid interference. Therefore, the material conveying device can remarkably improve the waste discharge success rate.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical automation, in particular to a material conveying device. Background Art

[0002] When using the lamination process to produce lithium batteries, the pole pieces need to be cut first. NG pole pieces may be produced during the cutting process, and they need to be removed during the conveying process. At present, the common waste discharge scheme is to rely on the deadweight to make the pole pieces fall to change their direction of travel, thereby achieving waste discharge. However, when the width of the pole piece is large and greater than the height of the material box, the NG pole piece will not be able to completely detach from the conveying path and the waste discharge will fail, and it will also block the subsequent good pole pieces from passing through. It can be seen that the current waste discharge scheme is limited by the size of the pole pieces and there is a greater risk of waste discharge failure. Utility Model Content

[0003] Based on this, it is necessary to provide a material conveying device that can improve the success rate of waste discharge in order to address the above problems.

[0004] A material conveying device, comprising:

[0005] Support frame;

[0006] A conveying mechanism disposed on the support frame, the conveying mechanism comprising a driving roller, a first driven roller and a second driven roller, the first driven roller cooperates with the driving roller to form a conveying channel for materials to pass through, the second driven roller is located at the downstream side of the conveying channel, and cooperates with the driving roller to form a waste discharge channel for materials to pass through; and

[0007] The waste discharge mechanism comprises a waste discharge driving member and a guide member. The guide member can guide the material output from the conveying channel into the waste discharge channel under the drive of the waste discharge driving member.

[0008] In one of the embodiments, the material conveying device further comprises a lifting mechanism drivingly connected to the first driven roller, and the lifting mechanism is capable of driving the first driven roller to reciprocate relative to the active roller along a height direction of the conveying channel.

[0009] In one embodiment, the lifting mechanism includes a lifting motor and a cam transmission structure, the first driven roller is connected to the lifting motor through the cam transmission structure, and the lifting motor can drive the first driven roller to reciprocate along the height direction of the conveying channel through the cam transmission structure.

[0010] In one of the embodiments, the conveying mechanism further includes a first pressing member, and the first pressing member is used to apply pressure to the first driven roller so that the first driven roller presses the material passing through the conveying channel.

[0011] In one embodiment, the conveying mechanism further includes a second pressing member, and the second pressing member is used to apply pressure to the second driven roller so that the second driven roller presses the material passing through the waste discharge channel.

[0012] In one embodiment, the support frame also includes a first feed support plate and a second feed support plate, which are located on the upstream side of the conveying channel and are spaced apart along the height direction of the conveying channel to form a guide channel extending to the conveying channel.

[0013] In one of the embodiments, a wedge-shaped surface is formed on a side of at least one of the first feeding support plate and the second feeding support plate away from the conveying channel to form a guide opening at an end of the guide channel away from the conveying channel.

[0014] In one of the embodiments, the support frame further includes a discharge guide plate, which is located on the downstream side of the conveying channel, and the discharge guide plate is inclined downward near one end of the conveying channel to form a guide surface.

[0015] In one of the embodiments, one side of the guide member is recessed inward to form a guide surface, and the waste discharge drive member can drive the guide member to block the conveying channel and make the guide surface face the conveying channel, and the material output from the conveying channel can abut against the guide member blocking the conveying channel, and can be bent toward the second driven roller and introduced into the waste discharge channel under the guidance of the guide surface.

[0016] In one of the embodiments, a waste box is further included at the bottom of the conveying mechanism, and the waste box is used to receive the material output through the waste discharge channel.

[0017] In the above-mentioned material conveying device, materials can enter the conveying channel for conveying in sequence. For good materials, after being output from the conveying channel, they can continue to be conveyed downstream along the original conveying path; and when NG materials are detected, the waste discharge drive member starts and drives the guide member to guide the NG materials into the waste discharge channel. At this time, the NG materials will be conveyed to the downstream of the waste discharge channel under the cooperation of the second driven roller and the active roller, so as to achieve waste discharge. Since the NG materials are driven by the active roller during the waste discharge process and do not rely on the dead weight of the materials, they are not limited by the size of the materials during waste discharge. Driven by the active roller, the NG materials can pass through the waste discharge channel smoothly, thereby completely separating from the conveying path of good materials to avoid interference. It can be seen that the above-mentioned material conveying device can significantly improve the success rate of waste discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a front view of the material conveying device in a preferred embodiment of the utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of the back side of the material conveying device shown;

[0021] Figure 3 for Figure 1 The material conveying device is shown in a cross-sectional view along AA. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be 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, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0028] See also Figure 1 , Figure 2 and Figure 3 The material conveying device 100 in the preferred embodiment of the present invention includes a support frame 110 , a conveying mechanism 120 and a waste discharge mechanism 130 .

[0029] The material conveying device 100 is used to convey the material 200 and can remove the NG material during the conveying process. Specifically, the material 200 in this embodiment refers to the electrode for preparing a lithium battery. Obviously, the material conveying device 100 can also be used for conveying other types of materials. The support frame 110 plays a supporting role, and the conveying mechanism 120 is arranged on the support frame 110.

[0030] The conveying mechanism 120 includes an active roller 121, a first driven roller 122 and a second driven roller 123. The active roller 121, the first driven roller 122 and the second driven roller 123 can be rotatably mounted on the support frame 110, and the rotation axes of the three are parallel to each other. The first driven roller 122 and the second driven roller 123 can rotate under the drive of the active roller 121. Specifically, the conveying mechanism 120 also includes a conveying motor 124, which is mounted on the support frame 110 and rotatably connected to the active roller 121, thereby driving the active roller 121 to rotate. Optionally, a transmission member such as a gear or a pulley can also be provided on the active roller 121. When the material 200 needs to be conveyed, the transmission member can be connected to an external driving member through the transmission member to drive the active roller 121 to rotate.

[0031] Furthermore, the first driven roller 122 cooperates with the active roller 121 to form a conveying channel (not shown) for the material 200 to pass through. The roller surface of the first driven roller 122 is arranged opposite to the roller surface of the active roller 121, and the above-mentioned conveying channel is formed between the two. When the material 200 passes through the conveying channel, the first driven roller 122 and the active roller 121 can clamp the material 200 together, and as the active roller 121 rotates, the material 200 can be driven to be conveyed downstream of the conveying channel.

[0032] The second driven roller 123 is located at the downstream side of the conveying channel, and cooperates with the driving roller 121 to form a waste discharge channel (not shown) for the material 200 to pass through. Similarly, the roller surface of the second driven roller 123 is arranged opposite to the roller surface of the driving roller 121, and the waste discharge channel is formed between the two. When the material 200 passes through the waste discharge channel, the second driven roller 123 and the driving roller 121 can clamp the material 200 together, and as the driving roller 121 rotates, the material 200 can be driven to be transported downstream of the waste discharge channel.

[0033] The conveying direction of the conveying channel and the waste discharge channel is set at an angle, and they do not interfere with each other, and can simultaneously convey the material 200. Specifically, in the rotation direction of the active roller 121, the first driven roller 122 and the second driven roller 123 are arranged at a circumferential interval of greater than 90 degrees along the active roller 121.

[0034] The waste discharge mechanism 130 includes a waste discharge driving member 131 and a guide member 132. The waste discharge driving member 131 can drive the guide member 132 to move. The waste discharge driving member 131 can be a cylinder, which can be fixed on the support frame 110. The guide member 132 can be in the shape of a plate, a rod, a block, etc. Among them, the guide member 132 can guide the material 200 output from the conveying channel into the waste discharge channel under the drive of the waste discharge driving member 131. Specifically, the guide member 132 can push the material 200 into the waste channel by pressing the material 200 laterally, or can force the material 200 to bend by pressing the end of the material 200 along the conveying direction, thereby guiding the material 200 into the waste discharge channel.

[0035] Please refer again Figure 2 In this embodiment, one side of the guide member 132 is recessed inward to form a guide surface 1321. The waste discharge driving member 131 can drive the guide member 132 to block the conveying channel and make the guide surface 1321 face the conveying channel. The material 200 output from the conveying channel can abut against the guide member 132 blocking the conveying channel, and can be bent toward the second driven roller 123 and introduced into the waste discharge channel under the guidance of the guide surface 1321.

[0036] When the material 200 is normally conveyed, the waste discharge driving member 131 drives the guide member 132 to move away from the conveying channel; when waste discharge is required, the waste discharge driving member 131 drives the guide member 132 to block the conveying channel. At this time, the material 200 output from the conveying channel cannot continue to be conveyed downstream along the original conveying path, and the guide surface 1321 guides the end of the material 200 to slide, so that the material 200 is bent toward the second driven roller 123. Preferably, the guide surface 1321 is a smooth curved surface.

[0037] Since the conveying passage is blocked by the guide member 132 during waste discharge, it is possible to avoid that the NG material continues to be conveyed downstream along the original conveying path due to untimely guidance, thereby causing the NG material to fail to be discharged. Moreover, under the guidance of the guide surface 1321, the material 200 can be bent smoothly, which can prevent the material 200 from folding and blocking the conveying passage when it contacts the guide member 132.

[0038] The waste discharge channel in this embodiment is located below the conveying channel, and the guide member 132 is arranged above the waste discharge channel and the conveying channel. The waste discharge driving member 131 can drive the guide member 132 to move up and down. When the material 200 is normally conveyed, the waste discharge driving member 131 drives the guide member 132 to move up and avoid the conveying channel. When waste discharge is required, the waste discharge driving member 131 drives the guide member 132 to move down and block the conveying channel.

[0039] The cut materials 200 can be sequentially transported into the conveying channel from the upstream. For good materials, they can continue to be transported downstream along the original conveying path after being output from the conveying channel; and when NG materials are detected, the waste discharge drive 131 drives the guide member 132 to move to guide the NG materials into the waste discharge channel. At this time, the NG materials will be transported to the downstream of the waste discharge channel under the cooperation of the second driven roller 123 and the active roller 121, so as to achieve waste discharge. Since the NG materials are driven by the active roller 121 during the waste discharge process and do not rely on the dead weight of the material, they are not limited by the size of the material 200 during waste discharge. Driven by the active roller 121, the NG materials can pass through the waste discharge channel smoothly, thereby completely leaving the conveying path of good materials. It can be seen that the success rate of waste discharge is significantly improved.

[0040] Please refer again Figure 3 In this embodiment, the material conveying device 100 further includes a waste box 140 located at the bottom of the conveying mechanism 120, and the waste box 140 is used to receive the material 200 output through the waste discharge channel. The opening of the waste box 140 faces the output end of the waste discharge channel, so the NG material output from the waste channel can directly enter the waste box 140 for collection.

[0041] Please refer again Figure 1 In this embodiment, the guide member 132 is in a long strip shape and extends along the axial direction of the active roller 121. In this way, the guide member 132 has a larger contact area when it contacts the material 200, so that the material 200 is subjected to a more uniform force, which can effectively prevent the material 200 from wrinkling or deforming due to uneven force, thereby ensuring that the NG material can smoothly enter the waste discharge channel.

[0042] In addition, in this embodiment, the conveying mechanism 120 further includes a first pressing member 125, which is used to apply pressure to the first driven roller 122 so that the first driven roller 122 presses the material 200 passing through the conveying channel. In the process of conveying the material 200, the first pressing member 125 can make the first driven roller 122 and the active roller 121 reliably pressed against each other, thereby preventing the material 200 from slipping during the conveying process, and ensuring the reliability of the conveying process.

[0043] Specifically, the conveying mechanism 120 further includes a first bracket 126, which is mounted on the support frame 110, and the first driven roller 122 is rotatably mounted on the first bracket 126. The first pressing member 125 can be a cylinder, which is mounted on the support frame 110 and abuts against the first bracket 126, and can apply pressure to the first bracket 126 so that the first driven roller 122 presses the material 200 against the active roller 121.

[0044] In this embodiment, the conveying mechanism 120 further includes a second pressing member 127, which is used to apply pressure to the second driven roller 123 so that the second driven roller 123 presses the material 200 passing through the waste discharge channel. Similarly, during the waste discharge process, the second pressing member 127 can reliably press the second driven roller 123 against the active roller 121, thereby preventing slippage and ensuring the reliability of the waste discharge process.

[0045] Specifically, the conveying mechanism 120 further includes a second bracket 128, which is mounted on the support frame 110, and the second driven roller 123 is rotatably mounted on the second bracket 128. The second pressing member 127 may also be a cylinder, which is mounted on the support frame 110 and abuts against the second bracket 128, and the second driven roller 123 can press the material 200 against the active roller 121 by applying pressure to the second bracket 128.

[0046] Please refer again Figure 2 and Figure 3 In this embodiment, the support frame 110 also includes a first feed support plate 111 and a second feed support plate 112. The first feed support plate 111 and the second feed support plate 112 are located on the upstream side of the conveying channel and are spaced apart along the height direction of the conveying channel to form a guide channel 101 extending to the conveying channel.

[0047] The height direction of the conveying channel refers to the arrangement direction of the first driven roller 122 and the active roller 121, that is, Figure 3 The first feeding support plate 111 and the second feeding support plate 112 can limit and guide the sheet 200. The incoming material 200 first enters the guide channel 101 and is successively introduced into the conveying channel by the guide channel 101 to prevent the incoming material 200 from being offset, thereby ensuring that the material 200 smoothly enters the conveying channel.

[0048] Furthermore, in this embodiment, a wedge-shaped surface (not shown) is formed on one side of at least one of the first feeding support plate 111 and the second feeding support plate 112 away from the conveying channel, so as to form a guide opening 1011 at one end of the guide channel 101 away from the conveying channel. The guide opening 1011 expands outwards and is trumpet-shaped, which can play a good guiding role for the material 200, thereby ensuring that the incoming material 200 can smoothly enter the guide channel 101.

[0049] In this embodiment, the support frame 110 further includes a discharge guide plate 113 . The discharge guide plate 180 is located at the downstream side of the conveying channel. The discharge guide plate 113 is inclined downward near one end of the conveying channel to form a guide surface 1131 .

[0050] Specifically, the discharge guide plate 113 is used to guide the good material output from the conveying channel so that the good material can continue to be conveyed downstream along the original conveying path. After the good material is output from the conveying channel, its end may sag under the action of gravity, and the guide surface 1131 can receive the drooping end of the good material and guide it to slide along the discharge guide plate 113, thereby ensuring that the good material can continue to be conveyed downstream along the original conveying path.

[0051] The incoming material 200 is intermittent, and each material 200 may be deformed or wrinkled due to the squeezing of the first driven roller 122 and the active roller 121 when entering the conveying channel, which may cause the material to fail to enter and get stuck, or good materials may be scrapped. In order to solve this problem, in this embodiment, the material conveying device 100 also includes a lifting mechanism 140 that is transmission-connected to the first driven roller 122, and the lifting mechanism 140 can drive the first driven roller 122 to reciprocate relative to the active roller 121 along the height direction of the conveying channel.

[0052] When the lifting mechanism 140 drives the first driven roller 122 to move back and forth, the first driven roller 122 will be alternately lifted and pressed down relative to the active roller 121. When the first driven roller 122 is lifted, the gap between the first driven roller 122 and the active roller 121 increases, thereby facilitating the entry of the material 200 and preventing the material 200 from wrinkling; when the first driven roller 122 is pressed down, the gap between the first driven roller 122 and the active roller 121 decreases, so that the material 200 can be clamped and transported. It can be seen that by making the first driven roller 122 reciprocate at a preset frequency, the risk of the material 200 getting stuck or wrinkled during feeding can be greatly reduced while ensuring the normal transportation of the material 200.

[0053] like Figure 1 As shown, the first bracket 126 can be slidably mounted on the support frame 110 through the guide rail slider assembly 114, so that the first driven roller 122 can move along the height direction of the conveying channel relative to the active roller 121. The lifting mechanism 140 is connected to the first bracket 126, and drives the first driven roller 122 to move back and forth along the height direction of the conveying channel by driving the first bracket 126 to move back and forth.

[0054] Furthermore, in this embodiment, the lifting mechanism 140 includes a lifting motor 141 and a cam transmission structure. The first driven roller 122 is connected to the lifting motor 141 through the cam transmission structure. The lifting motor 141 can drive the first driven roller 122 to reciprocate along the height direction of the conveying channel through the cam transmission structure.

[0055] The cam transmission structure can convert the rotational motion of the lifting motor 141 into periodic reciprocating motion. Therefore, the movement process of the first driven roller 122 can be controlled by only controlling the rotation speed of the lifting motor 141 to achieve the purpose of making it reciprocate at a preset frequency.

[0056] Specifically, the cam transmission structure includes an eccentric wheel 142 and a follower 143. The eccentric wheel 142 is mounted on the rotating shaft of the lifting motor 141. The follower 143 is mounted on the first bracket 126 and cooperates with the eccentric wheel 142. As the lifting motor 141 drives the eccentric wheel 142 to rotate, the follower 143 can drive the first bracket 126 and the first driven wheel 122 thereon to reciprocate.

[0057] In the above-mentioned material conveying device 100, the material 200 can enter the conveying channel for conveying in sequence. For good materials, after being output from the conveying channel, they can continue to be conveyed downstream along the original conveying path; and when NG materials are detected, the waste discharge drive member 131 starts and drives the guide member 132 to guide the NG materials into the waste discharge channel. At this time, the NG materials will be conveyed to the downstream of the waste discharge channel under the cooperation of the second driven roller 123 and the active roller 121, so as to achieve waste discharge. Since the NG materials are driven by the active roller 121 during the waste discharge process and do not rely on the dead weight of the material, they are not limited by the size of the material during waste discharge. Driven by the active roller 121, the NG materials can pass through the waste discharge channel smoothly, thereby completely leaving the conveying path of the good materials to avoid interference. It can be seen that the above-mentioned material conveying device 100 can significantly improve the success rate of waste discharge.

[0058] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A material conveying device, characterized in that: include: Support frame; A conveying mechanism disposed on the support frame, the conveying mechanism comprising a driving roller, a first driven roller and a second driven roller, the first driven roller cooperates with the driving roller to form a conveying channel for materials to pass through, the second driven roller is located at the downstream side of the conveying channel, and cooperates with the driving roller to form a waste discharge channel for materials to pass through; and The waste discharge mechanism comprises a waste discharge driving member and a guide member. The guide member can guide the material output from the conveying channel into the waste discharge channel under the drive of the waste discharge driving member.

2. The material conveying device according to claim 1, characterized in that: The material conveying device further comprises a lifting mechanism drivingly connected to the first driven roller, and the lifting mechanism can drive the first driven roller to reciprocate relative to the driving roller along the height direction of the conveying channel.

3. The material conveying device according to claim 2, characterized in that: The lifting mechanism includes a lifting motor and a cam transmission structure, the first driven roller is connected to the lifting motor through the cam transmission structure, and the lifting motor can drive the first driven roller to reciprocate along the height direction of the conveying channel through the cam transmission structure.

4. The material conveying device according to claim 1, characterized in that: The conveying mechanism further includes a first pressing member, which is used to apply pressure to the first driven roller so that the first driven roller presses the material passing through the conveying channel.

5. The material conveying device according to claim 1, characterized in that: The conveying mechanism further includes a second pressing member, which is used to apply pressure to the second driven roller so that the second driven roller presses the material passing through the waste discharge channel.

6. The material conveying device according to claim 1, characterized in that: The support frame also includes a first feed support plate and a second feed support plate, which are located on the upstream side of the conveying channel and are spaced apart along the height direction of the conveying channel to form a guide channel extending to the conveying channel.

7. The material conveying device according to claim 6, characterized in that: A wedge-shaped surface is formed on a side of at least one of the first material feeding support plate and the second material feeding support plate away from the conveying channel to form a guide opening at an end of the guide channel away from the conveying channel.

8. The material conveying device according to claim 1, characterized in that: The support frame also includes a discharge guide plate, which is located at the downstream side of the conveying channel. The discharge guide plate is inclined downward near one end of the conveying channel to form a guide surface.

9. The material conveying device according to claim 1, characterized in that: One side of the guide member is recessed inward to form a guide surface, and the waste discharge driving member can drive the guide member to block the conveying channel and make the guide surface face the conveying channel, so that the material output from the conveying channel can abut against the guide member blocking the conveying channel, and can be bent toward the second driven roller and introduced into the waste discharge channel under the guidance of the guide surface.

10. The material conveying device according to claim 1, characterized in that: It also includes a waste box located at the bottom of the conveying mechanism, and the waste box is used to receive the materials output through the waste discharge channel.

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