A leak-proof device and an integrated belt conveyor

Abstract

This utility model discloses a material leakage prevention device, comprising: a mounting frame connected to the frame of an integrated belt conveyor; a transverse baffle connected to the mounting frame, extending along the width direction of the lifting belt and located between the lower surface of the horizontal belt and the upper surface of the lifting belt, with the bottom of the transverse baffle contacting the upper surface of the lifting belt; and two lateral baffles connected to the mounting frame, spaced apart on both sides of the transverse baffle along the width direction of the lifting belt, both lateral baffles extending along the extension direction of the lifting belt and at least partially located between the gap and the transverse baffle, with both ends of the transverse baffle contacting the two lateral baffles respectively, and the bottoms of both lateral baffles contacting the upper surface of the lifting belt. This utility model can prevent tobacco leaf breakage and reduce the labor intensity of workers. This utility model also discloses an integrated belt conveyor.

Description

Technical Field

[0001] This utility model relates to the field of conveying equipment technology, and in particular to a leak-proof device and an integrated belt conveyor. Background Technology

[0002] In the tobacco processing workshop, the feeding process typically utilizes an integrated belt conveyor to transport tobacco leaves. This integrated belt conveyor consists of a horizontal belt and a lifting belt. The horizontal belt is driven by a pair of horizontal pulleys, and the lifting belt is driven by a pair of lifting pulleys. To increase friction, the surface of the lifting belt is patterned. The horizontal belt is located upstream of the lifting belt, and its discharge end is positioned above the lifting belt, allowing the tobacco leaves transported on the horizontal belt to fall smoothly onto the lifting belt, where they continue to be transported downstream.

[0003] Currently, this integrated belt conveyor frequently experiences material leakage when transporting tobacco leaves. This causes the tobacco leaves to break, and the leaked tobacco leaves need to be manually mixed back into the later stages of tobacco processing for reuse, resulting in high labor intensity for workers. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing integrated belt conveyors frequently experience material leakage when conveying tobacco leaves, leading to leaf breakage and increased labor intensity for workers. This invention provides a leakage prevention device that can prevent tobacco leaf breakage and reduce worker workload.

[0005] The applicant discovered through investigation that the reason why existing integrated belt conveyors frequently experience material leakage when conveying tobacco leaves is:

[0006] Because the discharge end of the horizontal belt is vertically positioned above the feed end of the lifting belt, and there is a gap between the horizontal belt pulley and the upper surface of the lifting belt, this gap prevents the horizontal and lifting belts from contacting each other during operation and causing friction damage. However, due to this gap, tobacco leaves from the discharge end of the horizontal belt can easily slide down the lifting belt along its extension direction when they first enter the lifting belt, causing friction with the lifting belt pulley and resulting in tobacco leaf breakage. Furthermore, over time, tobacco leaves accumulated in the gap will leak out from both sides of the lifting belt. These leaked tobacco leaves need to be manually mixed back into the tobacco material for reuse, thus increasing the labor intensity for workers.

[0007] To solve the above-mentioned technical problems, this utility model discloses a material leakage prevention device for an integrated belt conveyor. The integrated belt conveyor includes a horizontal belt and a lifting belt. The output end of the horizontal belt is located above the lifting belt and has a gap between them. The material leakage prevention device includes:

[0008] The mounting frame is connected to the frame of the integrated belt conveyor;

[0009] A transverse baffle belt is connected to the mounting bracket. The transverse baffle belt extends along the width direction of the lifting belt and is located between the lower surface of the horizontal belt and the upper surface of the lifting belt. The bottom of the transverse baffle belt is in contact with the upper surface of the lifting belt.

[0010] Two side baffles are connected to the mounting frame. The two side baffles are spaced apart on both sides of the transverse baffle along the width direction of the lifting belt. Both side baffles extend along the extension direction of the lifting belt and are at least partially located between the gap and the transverse baffle. The two ends of the transverse baffle contact the two side baffles respectively, and the bottom of the two side baffles contacts the upper surface of the lifting belt.

[0011] As tobacco leaves move from the discharge end of the horizontal conveyor belt to the lifting conveyor belt, some leaves may slide down through the gap between the two belts. This application, by incorporating transverse and lateral baffles, can prevent these leaking leaves from falling into the area enclosed by the transverse and lateral baffles. As the lifting conveyor belt continues to transport the tobacco, the textured surface provides friction to these leaves, thus carrying them out of the area enclosed by the transverse and lateral baffles and allowing them to continue downstream transported with the lifting conveyor belt.

[0012] By adopting the above technical solution, the transverse and lateral baffles can prevent the leaked tobacco leaves from rubbing against the lifting belt pulley, thereby avoiding the breakage of the tobacco leaves; at the same time, the tobacco leaves in the gaps can continue to be transported downstream under the conveying action of the lifting belt, thus eliminating the need for workers to manually remix them and reducing the labor intensity of workers.

[0013] Optionally, the mounting bracket includes:

[0014] Two fixed frames are spaced apart on both sides of the horizontal belt along the width direction, and the fixed frames are connected to the frame of the integrated belt conveyor.

[0015] Two adjusting frames are detachably connected to two fixed frames respectively. The position of the connection point between the adjusting frame and the fixed frame can be changed so that the adjusting frame can be closer to or further away from the upper surface of the lifting belt. Two side baffles are respectively set on the two adjusting frames.

[0016] Two locking elements are respectively located between the two fixed frames and their corresponding adjusting frames, and are used to lock the adjusting frame onto its corresponding fixed frame.

[0017] Optionally, each adjustment bracket includes:

[0018] The first rod extends vertically and is connected to the fixing frame by a locking device;

[0019] The second rod extends in a direction parallel to that of the lifting belt, passes through the gap, and has one end connected to the first rod. A lateral baffle is located at the bottom of the second rod.

[0020] Optionally, each fixing bracket is provided with a strip hole, which extends vertically. The first end of the first rod is provided with a through hole. Each locking element includes a bolt and a nut. The bolt passes through the strip hole and the through hole, and the nut is threadedly connected to the bolt.

[0021] Optionally, there is a certain interval between the first rod and the fixing frame, and the number of nuts is three, namely the first nut, the second nut and the third nut;

[0022] The head of the first nut and the bolt are placed on both sides of the slotted hole. The first nut and the bolt are threaded together so that the head of the bolt and the first nut clamp the fixing frame.

[0023] The second nut and the third nut are placed on both sides of the through hole. Both the second nut and the third nut are threadedly connected to the bolt so that the second nut and the third nut can clamp the first rod.

[0024] Optionally, both the lateral and side guards are made of flexible material.

[0025] Optionally, both the lateral and side guards are made of polyethylene.

[0026] Optionally, the lateral baffle is detachably connected to the second rod.

[0027] Optionally, each adjustment frame also includes a reinforcing rib, the two ends of which are connected to the first rod and the second rod respectively, and the reinforcing rib, the first rod and the second rod together form a triangle.

[0028] This utility model also discloses an integrated belt conveyor, including a horizontal belt, a lifting belt and the aforementioned anti-leakage device. The output end of the horizontal belt is located above the lifting belt and has a gap between it and the upper surface of the lifting belt. The anti-leakage device is used to receive the material flowing from the gap to the feed end of the lifting belt. Attached Figure Description

[0029] Figure 1 This diagram shows a structural schematic of an integrated belt conveyor in the prior art;

[0030] Figure 2 Show Figure 1 A magnified view of part A in the middle;

[0031] Figure 3 This diagram illustrates the structure of the anti-leakage device installed on the integrated belt conveyor in an embodiment of the present invention. Figure 1 ;

[0032] Figure 4 Show Figure 3 The main view;

[0033] Figure 5 This diagram shows the structure of the anti-leakage device in an embodiment of the present invention.

[0034] Figure 6 Show Figure 5 A magnified view of part C in the middle.

[0035] Reference numerals: 100. Integrated belt conveyor; 110. Horizontal belt; 111. Feed end of horizontal belt; 112. Discharge end of horizontal belt; 113. Horizontal pulley; 120. Lifting belt; 121. Feed end of lifting belt; 122. Discharge end of lifting belt; 123. Lifting pulley; 130. Gap; 140. Frame; 200. Leakage prevention device; 210. Mounting frame; 211. Fixing frame; 2111. Strip hole; 212. Adjusting frame; 2121. First rod; 2122. Second rod; 2123. Reinforcing rib; 213. Locking element; 2131. Bolt; 2132. First nut; 2133. Second nut; 2134. Third nut; 2135. Bolt head; 220. Transverse baffle belt; 230. Lateral baffle belt. Detailed Implementation

[0036] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0037] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0038] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0039] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0040] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0041] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0042] In the tobacco processing workshop, the feeding process typically utilizes integrated belt conveyors to transport tobacco leaves. For example... Figure 1 As shown, the integrated belt conveyor 100 consists of a horizontal belt 110 and a lifting belt 120. The horizontal belt 110 is driven by a pair of horizontal pulleys 113, and the lifting belt 120 is driven by a pair of lifting pulleys 123. To improve friction, the surface of the lifting belt 120 is patterned (not shown in the figure). The horizontal belt 110 is located upstream of the lifting belt 120, and its discharge end 112 is positioned above the lifting belt 120. The conveying direction of the tobacco leaves is as follows: Figure 1 As shown in the X direction, the tobacco leaves conveyed on the horizontal belt 110 can fall smoothly onto the lifting belt 120 and continue to be conveyed upward by the lifting belt 120.

[0043] Currently, this integrated belt conveyor 100 frequently experiences material leakage when conveying materials such as tobacco leaves. This causes the tobacco leaves to break, and the leaked tobacco leaves need to be manually mixed back into the later stages of tobacco material processing for degradation, resulting in high labor intensity for workers.

[0044] The applicant discovered through investigation that the reason why the existing integrated belt conveyor 100 frequently experiences material leakage when conveying tobacco leaves is:

[0045] Since the discharge end 112 of the horizontal belt is vertically positioned above the feed end 121 of the lifting belt, as... Figure 2 As shown, there is a gap 130 between the horizontal pulley 113 and the upper surface of the lifting belt 120 (the height of the gap 130 is as shown in the figure). Figure 2 As shown in dimension D), the gap 130 prevents the horizontal belt 110 and the lifting belt 120 from coming into contact during operation, thus avoiding belt friction damage. However, due to the presence of this gap 130, the tobacco leaves at the discharge end 112 of the horizontal belt, when just entering the lifting belt 120, easily slide down along the extension direction of the lifting belt 120 from the gap 130 to the lower lifting belt pulley 123, causing friction with the lifting belt 120 pulley and resulting in tobacco leaf breakage. In addition, after a long period of accumulation, the tobacco leaves in the gap 130 will leak out from both sides of the lifting belt 120 in the width direction. The leaked tobacco leaves need to be manually mixed back into the tobacco material for downgrading, thus causing a high labor intensity for workers.

[0046] To solve the aforementioned technical problems, according to the first aspect of this application, an embodiment of the present invention discloses a leak-proof device 200 for use in an integrated belt conveyor 100, such as... Figure 3 , Figure 4 and Figure 5 As shown, the leak-proof device 200 includes: a mounting bracket 210, a transverse baffle 220, and two lateral baffles 230.

[0047] The transverse baffle 220 and two side baffles 230 are all mounted on the mounting frame 210, which is connected to the frame 140 of the integrated belt conveyor 100. The transverse baffle 220 extends along the width of the lifting belt 120 and is located between the lower surface of the horizontal belt 110 and the upper surface of the lifting belt 120. The bottom of the transverse baffle 220 contacts the upper surface of the lifting belt 120 to prevent tobacco leaves leaking through the gap 130 from continuing to slide downwards along the extension direction of the lifting belt 120. The two side baffles 230 are spaced apart on both sides of the transverse baffle 220 along the width of the lifting belt 120. Both side baffles 230 extend along the extension direction of the lifting belt 120. Figure 1 Extending in the X direction, the two lateral baffles 230 are at least partially located between the gap 130 and the transverse baffle 220. The two ends of the transverse baffle 220 contact the two lateral baffles 230 respectively, and the bottoms of both lateral baffles 230 contact the upper surface of the lifting belt 120. Exemplarily, the two lateral baffles 230 extend in parallel directions and are perpendicular to the extending direction of the transverse baffle 220, forming a U-shaped area. Tobacco leaves leaking from the gap 130, after entering this U-shaped area, can only flow out through the opening (or vent) of the U-shaped area; all other positions are sealed, and no tobacco leaves will leak out.

[0048] In some embodiments, a portion of the lateral baffle 230 may be located between the gap 130 and the transverse baffle 220, while another portion may be located between the transverse baffle 220 and the feed end of the lifting belt 120. In other embodiments, the entire lateral baffle 230 may be located between the gap 130 and the transverse baffle 220.

[0049] The tobacco leaves move from the feed end 111 of the horizontal belt to the upper surface of the horizontal belt 110 and are conveyed forward with the horizontal belt 110. When the tobacco leaves move from the discharge end 112 of the horizontal belt to the lifting belt 120, some tobacco leaves may slide down through the gap 130 between the horizontal belt 110 and the lifting belt 120. This application, by setting a transverse baffle 220 and a lateral baffle 230, can block the tobacco leaves leaking out of the gap 130 in the U-shaped area formed by the transverse baffle 220 and the lateral baffle 230. As the lifting belt 120 continues to convey, the pattern on the surface of the lifting belt 120 can provide friction to the tobacco leaves in the U-shaped area, thereby carrying the tobacco leaves in the U-shaped area out of the area formed by the transverse baffle 220 and the lateral baffle 230, and continuing to be conveyed downstream with the lifting belt 120, and then entering the next process from the discharge end 122 of the lifting belt.

[0050] By adopting the above technical solution, the transverse baffle 220 and the lateral baffle 230 can prevent the leaked tobacco leaves from rubbing against the lifting belt 120 wheel, thereby avoiding the breakage of the tobacco leaves; at the same time, the tobacco leaves in the gap 130 can continue to be conveyed downstream under the conveying action of the lifting belt 120, so that workers do not need to manually remix them, reducing the labor intensity of workers.

[0051] Optionally, such as Figure 5 As shown, the mounting bracket 210 includes: two fixing brackets 211, two adjusting brackets 212, and two locking members 213. The two fixing brackets 211 are positioned along the width direction of the horizontal belt 110 (e.g., ...). Figure 5 (As shown in the Y direction) The fixed frames 211 are spaced apart on both sides of the horizontal belt 110, and each fixed frame 211 is connected to the frame 140 of the integrated belt conveyor 100. Two adjusting frames 212 are detachably connected to the two fixed frames 211 respectively. The position of the connection point between the adjusting frame 212 and the fixed frame 211 can be changed, allowing the adjusting frame 212 to move closer to or further away from the upper surface of the lifting belt 120, thus adapting to different working conditions. Two lateral baffles 230 are respectively provided on the two adjusting frames 212. When the adjusting frame 212 moves along its vertical installation position, the position of the lateral baffles 230 along the vertical direction changes accordingly. Two locking members 213 are respectively provided between the two fixed frames 211 and their corresponding adjusting frames 212, used to lock the adjusting frame 212 onto its corresponding fixed frame 211.

[0052] Optionally, in this embodiment, as Figure 5 As shown, each adjusting frame 212 includes a first rod 2121 and a second rod 2122. The first rod 2121 extends vertically and is connected to a fixed frame 211 via a locking member 213. Furthermore, by changing the position between the first rod 2121 and the fixed frame 211, the position of the connection point between the adjusting frame 212 and the fixed frame 211 can be changed, allowing the adjusting frame 212 to move closer to or further away from the upper surface of the lifting belt 120 to adapt to different working conditions. The second rod 2122 extends parallel to the extension direction of the lifting belt 120, passes through a gap 130, and one end of the second rod 2122 is connected to the first rod 2121. A lateral baffle 230 is located at the bottom of the second rod 2122. Furthermore, the lateral baffle 230 is detachably connected (e.g., by bolts or snaps) to the bottom of the second rod 2122, and the lateral baffle 230 contacts the upper surface of the lifting belt 120. This serves two purposes: firstly, it prevents tobacco material from falling out from both sides of the lifting belt 120 in the width direction; secondly, it facilitates replacement after wear. Similarly, the two ends of the transverse baffle 220 can also be detachably connected to the frame 140 of the integrated belt conveyor 100 or the second rod 2122 for easy replacement after wear.

[0053] Optionally, such as Figure 5 and Figure 6 As shown, both fixing brackets 211 are provided with strip holes 2111, which extend vertically. The first end of the first rod 2121 is provided with a through hole (not shown in the figure). Each locking element 213 includes a bolt 2131 and a nut. The bolt 2131 passes through the strip hole 2111 and the through hole, and the nut is threadedly connected to the bolt 2131 so that the first rod 2121 is locked on the fixing bracket 211.

[0054] Furthermore, such as Figure 5 and Figure 6 As shown, there is a certain gap between the first rod 2121 and the fixing frame 211 (the size of the gap is as follows). Figure 4 and Figure 5As shown in dimension B, the first rod 2121 and the fixing frame 211 are positioned on the inner and outer sides of the frame side plate, respectively. There are three nuts: a first nut 2132, a second nut 2133, and a third nut 2134. The first nut 2132 and the head of the bolt 2131 (not shown in the figure) are positioned on opposite sides of the slotted hole 2111, and the first nut 2132 and bolt 2131 are threaded together, so that the head of the bolt 2131 and the first nut 2132 clamp the fixing frame 211. The second nut 2133 and the third nut 2134 are positioned on opposite sides of the through hole, and both the second nut 2133 and the third nut 2134 are threaded together with the bolt 2131, so that the second nut 2133 and the third nut 2134 clamp the first rod 2121, thereby connecting the first rod 2121 to the fixing frame 211.

[0055] Furthermore, if after prolonged use, a gap develops between the bottom edge of the lateral baffle 230 and the upper surface of the lifting belt 120 due to mechanical vibration or other reasons, the nuts can be loosened, and then the bolt 2131 can be moved downward along the strip hole 2111 to move the second rod 2122 closer to the upper surface of the lifting belt 120, and to bring the bottom edge of the lateral baffle 230 into contact with the upper surface of the lifting belt 120, thereby preventing material leakage from both sides of the lifting belt 120.

[0056] Optionally, such as Figure 5 As shown, each adjustment frame 212 also includes a reinforcing rib 2123. The two ends of the reinforcing rib 2123 are connected to the first rod 2121 and the second rod 2122, respectively. The reinforcing rib 2123, the first rod 2121, and the second rod 2122 form a triangle. By providing the reinforcing rib 2123, the stability and firmness of the connection between the first rod 2121 and the second rod 2122 can be increased.

[0057] Optionally, both the transverse baffle 220 and the lateral baffle 230 are made of flexible material. Furthermore, both the transverse baffle 220 and the lateral baffle 230 are made of polyethylene, ensuring close contact with the lifting belt 120 to prevent material leakage while avoiding damage to the surface pattern of the lifting belt 120 from hard contact.

[0058] According to a second aspect of this application, the present invention also discloses an integrated belt conveyor, such as... Figure 3 As shown, it includes a horizontal belt 110, a lifting belt 120 and the aforementioned anti-leakage device 200. The output end of the horizontal belt 110 is located above the lifting belt 120 and has a gap 130 between it and the upper surface of the lifting belt 120. The anti-leakage device 200 is used to receive the material flowing from the gap 130 to the feed end 121 of the lifting belt.

[0059] Because the integrated belt conveyor is equipped with a material leakage prevention device 200, during use, there will be no problem of material leaking out from the feed end 121 of the lifting belt and rubbing against the lifting belt pulley 123, causing the tobacco leaves to break. This avoids the problem of workers having to manually remix the leaked tobacco leaves, which is a problem of high labor intensity for workers, as is the case in the prior art.

[0060] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A leak-proof device for an integrated belt conveyor, the integrated belt conveyor comprising a horizontal belt and a lifting belt, wherein the output end of the horizontal belt is located above the lifting belt and has a gap between it and the upper surface of the lifting belt, characterized in that, The leak-proof device includes: The mounting frame is connected to the frame of the integrated belt conveyor; A transverse baffle is connected to the mounting bracket. The transverse baffle extends along the width direction of the lifting belt and is located between the lower surface of the horizontal belt and the upper surface of the lifting belt. The bottom of the transverse baffle is in contact with the upper surface of the lifting belt. Two lateral baffles are connected to the mounting bracket. The two lateral baffles are spaced apart on both sides of the transverse baffle along the width direction of the lifting belt. Both lateral baffles extend along the extension direction of the lifting belt and are at least partially located between the gap and the transverse baffle. The two ends of the transverse baffle contact the two lateral baffles respectively, and the bottom of the two lateral baffles contacts the upper surface of the lifting belt.

2. The spill resistant device of claim 1, wherein, The mounting bracket includes: Two fixed frames are spaced apart on both sides of the horizontal belt along the width direction of the horizontal belt, and the fixed frames are connected to the frame of the integrated belt conveyor. Two adjusting frames are detachably connected to the two fixed frames respectively. The position of the connection point between the adjusting frame and the fixed frame can be changed so that the adjusting frame can be close to or away from the upper surface of the lifting belt. The two lateral baffles are respectively provided on the two adjusting frames. Two locking elements are respectively disposed between the two fixed frames and the corresponding adjusting frames, for locking the adjusting frame onto the corresponding fixed frame.

3. The spill resistant device of claim 2, wherein, Each of the aforementioned adjustment brackets includes: The first rod extends vertically and is connected to the fixing frame via the locking member; The second rod extends parallel to the direction of the lifting belt, passes through the gap, and one end of the second rod is connected to the first rod. The lateral baffle is located at the bottom of the second rod.

4. The spill resistant device of claim 3, wherein, Each of the fixing brackets is provided with a strip-shaped hole, which extends vertically. The first end of the first rod is provided with a through hole. Each locking component includes a bolt and a nut. The bolt passes through the strip-shaped hole and the through hole, and the nut is threadedly connected to the bolt.

5. The spill resistant material device of claim 4, wherein, There is a certain interval between the first rod and the fixing frame, and there are three nuts, namely the first nut, the second nut and the third nut; The head portion of the first nut and the bolt are positioned on both sides of the slotted hole. The first nut and the bolt are threaded together so that the head of the bolt and the first nut clamp the fixing frame. The second nut and the third nut are respectively placed on both sides of the through hole. The second nut and the third nut are both threadedly connected to the bolt so that the second nut and the third nut clamp the first rod body.

6. A spill resistant device according to any one of claims 1 to 5, wherein, Both the transverse baffle and the lateral baffle are made of flexible material.

7. The spill resistant material device of claim 6, wherein, Both the transverse baffle and the lateral baffle are made of polyethylene.

8. The spill resistant device of claim 3, wherein, The lateral baffle is detachably connected to the second rod.

9. The spill resistant device of claim 3, wherein, Each of the adjustment frames further includes a reinforcing rib, the two ends of which are connected to the first rod and the second rod respectively, and the reinforcing rib, the first rod and the second rod together form a triangle.

10. A twin belt conveyor characterized by, The invention includes a horizontal belt, a lifting belt, and a material leakage prevention device as described in any one of claims 1 to 9, wherein the output end of the horizontal belt is located above the lifting belt and has a gap between it and the upper surface of the lifting belt, and the material leakage prevention device is used to receive material flowing from the gap to the feed end of the lifting belt.

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