Smoke box conveying equipment and material falling prevention device thereof
By designing a device to prevent material from falling into the elevator and controlling the conveying of the smoke box by utilizing the rotation state of the support and stop components, the problem of smoke box falling into the elevator is solved, thus improving safety and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LONGYAN CIGARETTE FACTORY
- Filing Date
- 2025-04-24
- Publication Date
- 2026-04-21
AI Technical Summary
In the cigarette industry, there is a safety hazard when cigarette boxes fall during the conveying process of the elevator due to photoelectric detector failure or human error.
Design a device to prevent material from falling, including a bracket and a stop fixed on a lifting platform and a first conveyor platform. The smoke box is prevented or allowed to be conveyed at different heights by the rotation state of the stop, so as to ensure that the smoke box is conveyed smoothly after the lifting platform is in place.
This effectively prevents the smoke box from falling before it reaches its designated position, reducing the risk of equipment damage and personal injury, and improving the safety and reliability of the conveying process.
Smart Images

Figure CN224147071U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of cigarette technology, and in particular to cigarette box conveying equipment and devices for preventing material from falling. Background Technology
[0002] In the cigarette manufacturing industry, elevators are crucial equipment that utilize the reciprocating motion of a platform to vertically transport materials (cigarette boxes), ensuring a stable material supply. The elevator typically has a first conveyor platform and a second conveyor platform extending horizontally on either side, with different heights. When the elevator platform rises to the same height as the first conveyor platform, the first conveyor platform transfers the material to the elevator platform. The elevator platform then lowers the material to the second conveyor platform, allowing it to be transferred to the second conveyor platform.
[0003] The material can be a tobacco box, and the elevator has both manual and automatic operating modes. In automatic mode, a photoelectric detector determines whether the lifting platform is in position. If the lifting platform is in position, the first conveyor moves the tobacco box forward to transport it onto the lifting platform. However, occasional damage to the tobacco box or loosening of the binding straps can cause foreign objects such as tobacco fragments to obstruct the photoelectric detector, leading to detection failure. This means the lifting platform may not be in position before the conveyor moves, causing the tobacco box to fall. In manual mode, because the first conveyor can be operated in both forward and reverse directions without restriction, human error can easily cause the tobacco box to fall when the lifting platform is not in position, resulting in equipment damage and personal injury, posing a significant safety hazard. Utility Model Content
[0004] Therefore, it is necessary to provide a cigarette box conveying device and a device to prevent the cigarette box from falling when it is being conveyed from the conveying equipment to the lifting platform.
[0005] A device for preventing material from falling, the device comprising:
[0006] The first bracket is used to fix it to the lifting platform;
[0007] The second bracket is used to fix the first conveyor table at one end near the lifting platform;
[0008] A stop is rotatably mounted on the first bracket;
[0009] When the first support rises, it pushes the stop to rotate, so that the stop rotates from a locked state to an unlocked state. In the locked state, the first support is located below the second support, and at least a portion of the stop is higher than the upper surface of the first conveyor table. In the unlocked state, the first support abuts against the stop, and the stop is not higher than the upper surface of the first conveyor table.
[0010] In one embodiment, the stop member is rotatably connected to the first bracket via a rotating part, and the stop member includes a first stop section and a second stop section that are fixedly connected.
[0011] When the stop is in the locked state, the first stop segment is located above the rotating part, the second stop segment is located below the rotating part, and the end of the first stop segment away from the second stop segment extends to the upper part of the first conveyor table. The extension direction of the second stop segment is inclined to the rising direction of the first bracket.
[0012] In one embodiment, a counterweight is provided on the second stop section, and the counterweight applies a torque to the stop member to rotate in a first direction;
[0013] The second bracket is provided with a limiting member, which is located on one side of the first stop segment along the first direction. The limiting member is used to prevent the first stop segment in the locked state from rotating along the first direction.
[0014] In one embodiment, the limiting member is a limiting block that extends from the second bracket toward one side of the stop member.
[0015] In one embodiment, the first stop segment and the second stop segment are set at an obtuse angle.
[0016] In one embodiment, the number of stops is two, and when the stops are in the locked state, the two first stops are tilted to the side away from each other, and the two second stops are tilted to the side closer to each other.
[0017] In one embodiment, the second support includes:
[0018] A stop and fixing bracket is used to fix it to the first conveyor table;
[0019] A rotating connecting frame is disposed below the stop fixing frame, and the stop is rotatably connected to the rotating connecting frame.
[0020] In one embodiment, the first support includes:
[0021] A lifting and fixing frame is used to fix the lifting platform;
[0022] A lifting block is disposed below the lifting fixing frame, and the lifting block extends from the lifting fixing frame toward the side near the stop member.
[0023] In one embodiment, the second support, the stop, and the first support are arranged sequentially along the conveying direction of the first conveyor table.
[0024] A cigarette box conveying device includes a first conveying platform, a hoist, and a device to prevent material from falling. The hoist is equipped with a lifting platform. The first conveying platform is located upstream of the hoist. A first bracket is fixed to one end of the lifting platform near the first conveying platform. A second bracket is fixed to one end of the first conveying platform near the lifting platform.
[0025] In the aforementioned cigarette box conveying equipment and its anti-fall device, when locked, the height of the lifting platform is lower than the height of the first conveyor platform, i.e., the first support is located below the second support. At this time, at least a portion of the stop member is higher than the upper surface of the first conveyor platform to stop the cigarette boxes on the conveyor platform and prevent them from falling. When the lifting platform rises, it drives the first support to rise. When the lifting platform rises to be level with the first conveyor platform, the first support is level with the second support. The first support pushes the stop member to rotate so that the stop member is not higher than the first conveyor platform, and the stop member is in the unlocked state. The stop member does not limit the cigarette boxes on the first conveyor platform, and at this time, the cigarette boxes can be conveyed from the first conveyor platform to the lifting platform. That is, with the anti-fall device of this application, when the lifting platform is not raised to be level with the first conveyor platform, the stop member is used to stop the cigarette boxes to prevent them from falling. When the lifting platform rises to be level with the first conveyor platform, the stop member does not stop the cigarette boxes, and the cigarette boxes can be conveyed from the first conveyor platform to the lifting platform. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the structure of a smoke box conveying device in one embodiment when the stop member is in the locked state.
[0027] Figure 2 This is a schematic diagram of the structure of a cigarette box conveying device in one embodiment when the stop member is in the unlocked state.
[0028] Figure 3 This is a side view of a cigarette box conveying device in one embodiment, where the stop member is in the locked state.
[0029] Figure 4 This is a schematic diagram of a device for preventing material from falling when the stop member is in the locked state in one embodiment.
[0030] Figure 5 This is a schematic diagram of a device for preventing material from falling when the stop member is in the unlocked state, according to one embodiment.
[0031] Reference numerals: 10, First conveyor platform; 20, Hoist; 21, Lifting platform; 30, Second conveyor platform; 40, Smoke box; 100, First support; 110, Lifting fixing frame; 120, Lifting block; 200, Second support; 210, Stop fixing frame; 220, Rotating connecting frame; 230, Limiting component; 300, Stop component; 310, First stop section; 320, Second stop section; 330, Counterweight block. Detailed Implementation
[0032] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0033] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.
[0034] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0035] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0036] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0037] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0038] See Figures 1-3 An embodiment of this application provides a device for preventing material from falling, including a first bracket 100, a second bracket 200, and a stop 300. The first bracket 100 is fixed to the lifting platform 21; the second bracket 200 is fixed to one end of the first conveyor 10 near the lifting platform 21; the stop 300 is rotatably mounted on the first bracket 100; when the first bracket 100 rises, it pushes the stop 300 to rotate, so that the stop 300 rotates from a locked state to an unlocked state. In the locked state, it is combined with... Figure 1 The first support 100 is located below the second support 200, and one end of the stop 300 is higher than the upper surface of the first conveyor table 10; in the unlocked state, combined with Figure 2 The first support 100 abuts against the stop 300, and the stop 300 rotates to a position not higher than the upper surface of the first conveyor table 10.
[0039] It should be noted that: the first conveyor 10 has a conveyor platform that extends horizontally for transporting goods horizontally. The first conveyor 10 can be a conveyor belt, conveyor chain, conveyor roller, etc. The cigarette boxes 40 on the first conveyor 10 need to be transferred to the second conveyor 30 via an elevator. The height of the first conveyor 10 is greater than the height of the second conveyor 30. That is, after the lifting platform 21 receives the cigarette boxes 40 from the conveying equipment, it needs to descend to be flush with the second conveyor 30 to transport the cigarette boxes 40 onto the second conveyor 30. The lifting platform 21 is installed inside the elevator, which uses multiple closed chain drives. A lifting platform 21 is installed on the chain and rises and falls repeatedly with the lifting chain.
[0040] Furthermore, in the unlocked state, the first support 100 may be lower than the second support 200, higher than the second support 200, or flush with the second support 200. That is, in the unlocked state, the relative position of the first support 100 and the second support 200 is not limited, as long as the first support 100 abuts against the stop member 300, allowing the stop member 300 to rotate to a position lower than or equal to the upper surface of the first conveyor table 10, thus not limiting the movement of the first conveyor table 10. The following description uses the example of the first support 100 and the second support 200 being flush in the unlocked state.
[0041] In this embodiment, when in the locked state, combined with Figure 1 The height of the lifting platform 21 is lower than the height of the first conveyor platform 10, meaning the first support 100 is located below the second support 200. At this time, one end of the stop 300 extends above the first conveyor platform 10 to stop the cigarette box 40 on the conveyor platform and prevent it from falling. When the lifting platform 21 rises, it will cause the first support 100 to rise. When the lifting platform 21 rises to be level with the first conveyor platform 10, it will combine... Figure 2 The first support 100 is flush with the second support 200. The first support 100 pushes the stop 300 to rotate so that the stop 300 is not higher than the first support 100, that is, the stop 300 is not higher than the first conveyor table 10. At this time, the stop 300 is in the unlocked state and will not limit the cigarette box 40 on the first conveyor table 10. At this time, the cigarette box 40 can be conveyed from the first conveyor table 10 to the lifting platform 21. That is, with the material falling prevention device of this application, when the lifting platform 21 is not raised to be flush with the first conveyor table 10, the stop 300 is used to stop the cigarette box 40 to prevent the cigarette box 40 from falling. When the lifting platform 21 is raised to be flush with the first conveyor table 10, the stop 300 will not stop the cigarette box 40, and the cigarette box 40 can be conveyed from the first conveyor table 10 to the lifting platform 21.
[0042] Of course, in some other embodiments, a second support 200 may be provided at one end of the lifting platform 21 near the second conveyor platform 30, and a first support 100 may be provided at one end of the second conveyor platform 30 near the lifting platform 21. When the lifting platform 21 is not lowered to be flush with the second conveyor platform 30, the stop member 300 is used to stop the cigarette box 40 on the lifting platform 21 to prevent the cigarette box 40 from falling. When the lifting platform 21 is lowered to be flush with the second conveyor platform 30, the first support 100 pushes the stop member 300 on the second support 200 to rotate so that the stop member 300 will not stop the cigarette box 40, and the cigarette box 40 can be conveyed from the first conveyor platform 10 to the lifting platform 21.
[0043] Furthermore, the device to prevent material from falling can be installed on other devices that produce other materials, and is not limited to those used for conveying smoke boxes 40.
[0044] In some embodiments, combined with Figure 4 The second support 200 includes a stop fixing frame 210 and a rotating connecting frame 220. The stop fixing frame 210 is used to fix it on the first conveyor table 10. The rotating connecting frame 220 is arranged below the stop fixing frame 210, and the stop member 300 is rotatably connected to the rotating connecting frame 220.
[0045] In this embodiment, the rotating connecting frame 220 is fixed on the first conveying table 10 by the stop fixing frame 210. The rotating connecting frame 220 is located below the stop fixing frame 210 so that when the stop member 300 rotates to the unlocked state, the rotation position of the stop member 300 and the rotating connecting frame 220 is not higher than the first conveying table 10, so as to prevent the stop member 300 and the rotating part from blocking the transmission of the smoke box 40.
[0046] Specifically, the fixed bracket extends along the width direction of the first conveyor table 10, and the upper surface of the stop fixed bracket 210 does not protrude from the first conveyor table 10.
[0047] In some embodiments, combined with Figure 4 The stop member 300 is rotatably connected to the first support 100 via a rotating part. The stop member 300 includes a first stop section 310 and a second stop section 320 that are fixedly connected. When the stop member 300 is in the locked state, the first stop section 310 is located above the rotating part, the second stop section 320 is located below the rotating part, and the end of the first stop section 310 away from the second stop section 320 extends to the upper part of the first conveyor table 10. The extension direction of the second stop section 320 is inclined to the rising direction of the first support 100.
[0048] In this embodiment, when the stop member 300 is in the locked state, the first stop segment 310 is located above the rotating part, and the end of the first stop segment 310 away from the second stop segment 320 extends to the upper part of the first conveyor table 10 to stop the cigarette box 40 on the first conveyor table 10 and prevent the cigarette box 40 from falling. The second stop segment 320 is located below the rotating part, and the extension direction of the second stop segment 320 is inclined to the rising direction of the first support 100. When the first support 100 rises, the first support 100 can abut against the inclined second stop segment 320 to push the second stop segment 320 to rotate, thereby driving the first stop segment 310 to rotate, so that the first stop segment 310 rotates to the lower part of the first conveyor table 10 to prevent the first stop segment 310 from stopping the transmission of the cigarette box 40.
[0049] Furthermore, in combination Figure 3 and Figure 4 The second stop section 320 is provided with a counterweight 330, which applies a torque to the stop member 300 to rotate in the first direction; the second bracket 200 is provided with a limit member 230, which is located on one side of the first stop section 310 along the first direction, and the limit member 230 is used to prevent the first stop section 310 in the locked state from rotating in the first direction.
[0050] In this embodiment, the first direction can be clockwise or counterclockwise. In the clockwise direction, the second stop segment 320 extends from the rotating part towards the direction between the three o'clock and six o'clock positions. When the first support 100 rises, the first support 100 pushes the second stop segment 320 closer to the six o'clock position. At this time, since the second stop segment 320 is inclined and a counterweight 330 is provided on the second stop segment 320, the weight of the counterweight 330 causes the stop member 300 to rotate clockwise. At the same time, a limit member 230 is provided on the second support 200. The limit member 230 is located on the clockwise side of the first stop segment 310, thus preventing the first stop segment 310 from rotating clockwise. That is, under the combined action of the counterweight 330 and the limit member 230, the stop member 300 can be stably locked.
[0051] When the first direction is counterclockwise, the second stop section 320 extends from the rotating part in the direction between the six o'clock and nine o'clock directions. When the first bracket 100 rises, the first bracket 100 is used to push the second stop section 320 closer to the side in the six o'clock direction.
[0052] In some embodiments, the limiting member 230 is a limiting block, which is disposed on the stop fixing frame 210 and extends from the stop fixing frame 210 toward one side of the stop member 300. That is, the limiting block protrudes from the surface of the fixing frame so that the limiting block can stop the stop member 300 and prevent the stop member 300 from rotating in the first direction. Specifically, the limiting block has a cylindrical structure.
[0053] In some other embodiments, the limiting member 230 is a spring or a torsion spring. The torque exerted by the spring or torsion spring on the stop member 300 is counteracted by the torque exerted by the counterweight 330 on the stop member 300, which also enables the stop member 300 to be stably locked.
[0054] In some embodiments, combined with Figure 4 and Figure 5 The first support 100 includes a lifting fixing frame 110 and a lifting block 120. The lifting fixing frame 110 is used to fix it on the lifting platform 21. The lifting block 120 is located below the lifting fixing frame 110 and extends from the lifting fixing frame 110 toward the side close to the stop member 300.
[0055] In this embodiment, when the first support 100 rises, it pushes the stop 300 to rotate in the first direction via the lifting block 120, thereby causing the first stop section 310 to rotate to a height no higher than the upper surface of the first conveyor table 10, and the second stop section 320 to also be no higher than the upper surface of the first conveyor table 10. At this time, the cigarette box 40 can move from the first conveyor table 10 to the lifting platform 21. When the lifting platform 21 moves the cigarette box 40 downward, the stop 300 rotates clockwise under the gravity of the counterweight block 330 until the limiting member 230 limits the stop 300, that is, the stop 300 returns to the locked state.
[0056] Specifically, the lifting block 120 is located below the first support 100 so that when the lifting block 120 causes the stop 300 to rotate to the unlocked state, the first support 100 and the second support 200 are at the same height, that is, the first conveyor 10 and the lifting platform 21 are at the same height.
[0057] In some embodiments, the first stop segment 310 and the second stop segment 320 are set at an obtuse angle.
[0058] In some embodiments, the extending direction of the first stop segment 310 and the extending direction of the second stop segment 320 are set at an obtuse angle, or the included angle between the first stop segment 310 and the second stop segment 320 is an obtuse angle. When the first support 100 rises, when the lifting block 120 on the first support 100 abuts against the second stop segment 320, the tangential component of the force exerted by the lifting block 120 on the second stop segment 320 along the first direction is relatively large, which helps to reduce the pushing force of the lifting block 120 on the second stop segment 320.
[0059] In some other embodiments, the extension direction of the first stop section 310 is the same as that of the second stop section 320. When the lifting block 120 on the first bracket 100 abuts against the second stop section 320, the tangential component of the lifting block 120 on the second stop section 320 along the first direction is small, and the lifting block 120 needs to apply a large pushing force to the second stop section 320.
[0060] In some embodiments, there are two stops 300. When the stops 300 are in the locked state, the two first stops 310 are tilted to the side away from each other, and the two second stops 320 are tilted to the side closer to each other.
[0061] In this embodiment, the two first stop sections 310 are tilted to the side that is far apart from each other, which means that they can stop cigarette boxes 40 of different widths and sizes, and have a wide range of adaptability.
[0062] Furthermore, the limiting member 230, the lifting block 120, and the stop member 300 are respectively configured one-to-one. When the stop member 300 is in the locked state, the two limiting members 230 are respectively located on the side of the two first stop segments 310 that are close to each other. One limiting member 230 is used to prevent the stop member 300 from rotating clockwise, and the other limiting member 230 is used to prevent the stop member 300 from rotating counterclockwise. The two lifting blocks 120 are respectively located on the side of the two second stop segments 320 that are far from each other.
[0063] Furthermore, the length of the second stop segment 320 is less than the length of the first stop segment 310. The two second stop segments 320 are tilted towards each other. When the stop member 300 switches from the locked state to the unlocked state, one stop member 300 rotates clockwise and the other stop member 300 rotates counterclockwise. This ensures that when the two stop members 300 are in the unlocked state, the shorter second stop segment 320 is located between the two rotating connecting brackets 220, which can prevent the two stop members 300 from interfering with each other.
[0064] In some embodiments, the second support 200, the stop 300, and the first support 100 are arranged sequentially along the conveying direction of the first conveyor table 10.
[0065] In this embodiment, the first support 100 is fixed on the lifting platform 21, the second support 200 is fixed on the first conveying platform 10, and the stop 300 is disposed between the first support 100 and the second support 200, so that the first support 100 and the second support 200 are at the same height when locked. The limiting block extends from the second support 200 to the first stop section 310, and the lifting block 120 extends from the first support 100 to the second stop section 320.
[0066] Combination Figure 2 As shown, one embodiment of this application also provides a cigarette box conveying device, including a first conveying platform 10 and a hoist 20. A lifting platform 21 is provided inside the hoist 20. The first conveying platform 10 is located upstream of the hoist 20. A first support 100 is fixed to one end of the lifting platform 21 near the first conveying platform 10, and a second support 200 is fixed to one end of the first conveying platform 10 near the lifting platform 21.
[0067] When the lifting platform 21 is not raised to be level with the first conveyor platform 10, the stop member 300 is used to stop the cigarette box 40 to prevent the cigarette box 40 from falling. When the lifting platform 21 is raised to be level with the first conveyor platform 10, the stop member 300 will not stop the cigarette box 40, and the cigarette box 40 can be conveyed from the first conveyor platform 10 to the lifting platform 21.
[0068] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.
[0069] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A device for preventing material from falling, characterized in that The device for preventing material from falling includes: The first bracket is used to fix it to the lifting platform; The second bracket is used to fix the first conveyor table at one end near the lifting platform; A stop is rotatably mounted on the first bracket; When the first support rises, it pushes the stop to rotate, so that the stop rotates from a locked state to an unlocked state. In the locked state, the first support is located below the second support, and at least a portion of the stop is higher than the upper surface of the first conveyor table. In the unlocked state, the first support abuts against the stop, and the stop is not higher than the upper surface of the first conveyor table.
2. The means for preventing material from falling according to claim 1, wherein, The stop member is rotatably connected to the first bracket via a rotating part, and the stop member includes a first stop section and a second stop section that are fixedly connected. When the stop is in the locked state, the first stop segment is located above the rotating part, the second stop segment is located below the rotating part, and the end of the first stop segment away from the second stop segment extends to the upper part of the first conveyor table. The extension direction of the second stop segment is inclined to the rising direction of the first bracket.
3. The means for preventing material from falling according to claim 2, wherein, The second stop section is provided with a counterweight, which applies a torque to the stop member to rotate in the first direction; The second bracket is provided with a limiting member, which is located on one side of the first stop segment along the first direction. The limiting member is used to prevent the first stop segment in the locked state from rotating along the first direction.
4. The means for preventing material from falling according to claim 3, wherein The limiting member is a limiting block, which extends from the second bracket toward one side of the stop member.
5. The means for preventing material from falling according to claim 2, wherein, The first stop section and the second stop section are set at an obtuse angle.
6. The means for preventing material from falling according to claim 2, wherein, The number of the stop members is two. When the stop members are in the locked state, the two first stop segments are tilted to the side away from each other, and the two second stop segments are tilted to the side closer to each other.
7. The means for preventing material from falling according to claim 1, wherein, The second support includes: A stop and fixing bracket is used to fix it to the first conveyor table; A rotating connecting frame is disposed below the stop fixing frame, and the stop is rotatably connected to the rotating connecting frame.
8. The means for preventing material from falling according to claim 1, wherein, The first support includes: A lifting and fixing frame is used to fix the lifting platform; A lifting block is disposed below the lifting fixing frame, and the lifting block extends from the lifting fixing frame toward the side near the stop member.
9. The means for preventing material from falling according to claim 1, wherein, Along the conveying direction of the first conveyor table, the second support, the stop, and the first support are arranged in sequence.
10. A carton conveying apparatus characterized by, The device includes a first conveyor platform, a hoist, and a material falling prevention device as described in any one of claims 1-9. The hoist is equipped with a lifting platform. The first conveyor platform is located upstream of the hoist. The first bracket is fixed to the end of the lifting platform near the first conveyor platform. The second bracket is fixed to the end of the first conveyor platform near the lifting platform.