Conveyor movable stop device

Abstract

This utility model discloses a movable limiting device for a conveyor, relating to the field of tobacco leaf conveying technology. The solution includes: a conveyor for conveying tobacco leaves; a limiting structure comprising a support frame, a lifting frame, and limiting rollers. The support frame is detachably installed on both sides of the conveyor, and the bottom of the lifting frame is detachably connected to the support frame. The conveyor passes through the lifting frame, and the limiting rollers are horizontally arranged inside the lifting frame and perpendicular to the conveying direction of the conveyor. Multiple limiting rollers are arranged sequentially and at intervals along the conveying direction of the conveyor, with the height of the multiple limiting rollers gradually decreasing. With this arrangement, the installation position of the limiting structure can be freely adjusted according to production requirements, and the height of the lifting frame can be adjusted according to the material thickness to enable the limiting rollers to perform limiting control. Furthermore, the gradually decreasing height of the limiting rollers in this device enables step-by-step limiting control, ensuring that material will not clog when it is too high.

Description

Technical Field

[0001] This utility model relates to the field of tobacco leaf conveying technology, and in particular to a movable limiting device for a conveyor. Background Technology

[0002] Conveyors are mechanical devices that continuously transport materials and are widely used in industrial production and logistics, playing a vital role in improving production efficiency and reducing costs. For tobacco re-drying, leaf stacking, and unbundling, the height of the tobacco leaves piled on the conveyor is a key parameter affecting process quality, equipment efficiency, and finished product consistency. When the tobacco leaf thickness is too high, the leaf layer is compressed, preventing the bundles from being cut, affecting the steam penetration effect of the leaf-moistening machine, resulting in uneven moisture distribution in the tobacco leaves. This leads to a sudden increase in the load on the subsequent leaf-chopping machine, increased leaf breakage rate, and poorer stem-leaf separation (e.g., excessive leaf content in the stems). When the tobacco leaf thickness is too low, the conveyor efficiency decreases, the production line idle rate increases, and insufficient feeding in the leaf-moistening and leaf-chopping processes causes frequent equipment start-ups and shutdowns, reducing stability. Furthermore, excessively high tobacco leaf height can cause blockages in the bundle-cutting machine, requiring manual cleaning of the blockages, increasing the risk of contact with high temperatures and moving parts, and frequent shutdowns for cleaning reduce output.

[0003] Traditional conveyor limiting technologies suffer from problems such as immobility, cumbersome height adjustments, and high maintenance costs, leading to frequent material blockages and low production efficiency in enterprises. To address these issues, further in-depth research, development, and optimization of conveyor limiting technologies are still necessary. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, the present invention provides a movable limiting device for a conveyor.

[0005] To achieve the above objectives, the present invention provides a movable limiting device for a conveyor, comprising: Conveyor, used to transport tobacco leaves; The limiting structure includes a support frame, a lifting frame, and a limiting roller. The support frame is detachably installed on both sides of the conveyor. The bottom of the lifting frame is detachably connected to the support frame. The conveyor passes through the lifting frame. The limiting roller is horizontally arranged inside the lifting frame and perpendicular to the conveying direction of the conveyor. Multiple limiting rollers are provided, and the multiple limiting rollers are arranged sequentially at intervals along the conveying direction of the conveyor, and the setting height of the multiple limiting rollers gradually decreases.

[0006] To achieve the above objectives, the present invention provides a movable limiting device for a conveyor, which further includes a detection device disposed on the top of the lifting frame. The detection device is used to detect the moisture content of the tobacco leaves conveyed on the conveyor within the lifting frame.

[0007] Preferably, the lifting frame includes a first side plate, a second side plate, and a top plate. The first side plate and the second side plate are respectively disposed on both sides of the top plate, and the first side plate and the second side plate are respectively located on both sides of the conveyor and are detachably connected to the support frame. The top plate is located on the top of the conveyor. A plurality of first mounting holes are provided on the first side plate and the second side plate, and a second mounting hole is provided on the support frame. The first mounting holes and the second mounting holes are used for inserting a first locking bolt so that the first side plate and the second side plate are fixedly connected to the support frame. The lifting frame is used to align the first mounting hole at different positions with the second mounting hole to achieve height adjustment.

[0008] Preferably, a plurality of third mounting holes are provided on the first side plate and the second side plate, the third mounting holes being used for mounting the bearing seat, and the two ends of the limiting roller being rotatably connected to the bearing seat respectively; The plurality of third mounting holes are spaced apart along the conveyor conveying direction, and the height of the third mounting holes gradually decreases along the conveyor conveying direction.

[0009] Preferably, the slope of the connecting line between the centers of every two third mounting holes is the same, and the inclination angle of the connecting line between the centers of every two third mounting holes relative to the horizontal line is in the range of 5°-20°.

[0010] Preferably, the support frame includes a first column, a second column, and a crossbeam. The first column is connected to the first side plate, and the second column is connected to the second side plate. At least two first columns and two second columns are provided. The two ends of the crossbeam are fixedly connected between every two first columns, between every two second columns, and between the first column and the second column; The second mounting holes are respectively provided on the first column and the second column, and are respectively located near the top of the first column and the second column.

[0011] Preferably, the tops of the first side plate and the second side plate are inclined, and the top planes of the first side plate and the second side plate are parallel to the connecting line between the centers of each pair of the third mounting holes.

[0012] Preferably, a through fourth mounting hole is provided on the top plate, the detection device is mounted on the top plate, and the probe of the detection device is inserted into the fourth mounting hole.

[0013] Preferably, a plurality of second mounting holes are provided, and the plurality of first mounting holes and the plurality of second mounting holes are spaced apart in the vertical direction.

[0014] Preferably, the support frame, lifting frame, and limiting roller are made of stainless steel.

[0015] Based on this, the beneficial effects of this utility model are as follows: This utility model provides a movable limiting device for a conveyor. The limiting structure can be detachably installed on both sides of the conveyor and can be moved independently, making it easy to place in different positions on the conveyor, such as the front, middle, and rear sections, to meet different production needs. At the same time, the limiting rollers are spaced apart along the conveying direction, and the height of the rollers gradually decreases. This stepped roller design can control the material height step by step, ensuring that the material will not block when it is too high. The height of the lifting frame is also adjustable, allowing for quick and adaptive adjustment according to the thickness of the material layer. The overall structure is simple, easy to use, and has complete functions. Attached Figure Description

[0016] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 A schematic diagram illustrating the structure of a movable limiting device for a conveyor according to one embodiment of the present invention; Figure 2 A schematic diagram illustrating the structure of a limiting structure according to one embodiment of the present invention; Figure 3 A schematic diagram illustrating the structure of a detection device according to one embodiment of the present invention; Figure 4 A schematic diagram illustrating the structure of the first side plate according to one embodiment of the present invention; Figure 5 A schematic diagram illustrating the structure of the top plate according to one embodiment of the present invention; Explanation of reference numerals in the attached drawings: 10-Conveyor, 20-Limiting structure, 201-Support frame, 2011-Second mounting hole, 2012-First column, 2013-Second column, 2014-Crossbeam, 202-Lifting frame, 2021-First side plate, 2022-Second side plate, 2023-Top plate, 2024-First mounting hole, 2025-Third mounting hole, 2026-Fourth mounting hole, 203-Limiting roller, 2031-Bearing seat, 204-First locking bolt, 30-Detection device. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms "a," "the," and "the" as used in the embodiments of this application are also intended to include the plural forms unless the context clearly indicates otherwise.

[0019] It should be understood that although the terms first, second, third, etc., may be used to describe related structures in the embodiments of this application, these related structures should not be limited to these terms. These terms are only used to distinguish related structures from each other.

[0020] Depending on the context, the word "if" as used here can be interpreted as "when" or "when". Similarly, depending on the context, the phrase "if determined" can be interpreted as "when determined" or "when (the condition or event of the statement) is detected".

[0021] It should be noted that the directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should also be understood that when it is mentioned that an element is formed "upper" or "lower" of another element, it can not only be formed directly "upper" or "lower" of the other element, but also indirectly "upper" or "lower" of the other element through an intermediate element.

[0022] Figure 1 This is a schematic diagram illustrating the structure of a movable limiting device for a conveyor according to one embodiment of the present invention. Figure 2 This schematic diagram illustrates the structure of the limiting structure according to one embodiment of the present invention, as shown below. Figure 1 , 2 As shown, a movable limiting device for a conveyor according to this utility model includes: Conveyor 10, which is used to transport tobacco leaves; The limiting structure 20 includes a support frame 201, a lifting frame 202, and a limiting roller 203. The support frame 201 is detachably installed on both sides of the conveyor 10. The bottom of the lifting frame 202 is detachably connected to the support frame 201. The conveyor 10 passes through the lifting frame 202. The limiting roller 203 is horizontally arranged inside the lifting frame 202 and perpendicular to the conveying direction of the conveyor 10. Multiple limit rollers 203 are provided, and the multiple limit rollers 203 are arranged sequentially at intervals along the conveying direction of the conveyor 10, and the setting height of the multiple limit rollers 203 gradually decreases.

[0023] With this configuration, the support frame 201 can be detachably mounted on both sides of the conveyor 10 and can be installed at different positions on the conveyor 10, such as the front, middle and rear sections, according to the actual usage scenario and production needs. At the same time, multiple limiting rollers with different heights can control the height of materials (such as tobacco leaves) step by step to ensure that the material will not block when it is too high.

[0024] Furthermore, Figure 3 This schematic diagram illustrates the structure of a detection device according to one embodiment of the present invention, as shown below. Figure 3 As shown: The movable limiting device for the conveyor of this utility model also includes a detection device 30, which is set on the top of the lifting frame 202. The detection device 30 is used to detect the moisture content of the tobacco leaves conveyed on the conveyor 10 inside the lifting frame 202.

[0025] Specifically, the detection device 30 can be configured as a moisture detector. When the conveyor 10 transports tobacco leaves and enters the lifting frame 202, the moisture detector can detect the moisture content of the tobacco leaves to form a feedback adjustment system with the back-end equipment.

[0026] Furthermore, Figure 3 This diagram schematically illustrates the structure of the first side plate according to one embodiment of the present invention. Figure 4 This schematic diagram illustrates the structure of the top plate according to one embodiment of the present invention, as shown below. Figure 3 , 4 As shown: The lifting frame 202 includes a first side plate 2021, a second side plate 2022, and a top plate 2023. The first side plate 2021 and the second side plate 2022 are respectively disposed on both sides of the top plate 2023. The first side plate 2021 and the second side plate 2022 are respectively located on both sides of the conveyor 10 and are detachably connected to the support frame 201. The top plate 2023 is located on the top of the conveyor 10. A plurality of first mounting holes 2024 are provided on the first side plate 2021 and the second side plate 2022, and a second mounting hole 2011 is provided on the support frame 201. The first mounting holes 2024 and the second mounting holes 2011 are used for the insertion of the first locking bolt 204 so that the first side plate 2021 and the second side plate 2022 are fixedly connected to the support frame 201. The lifting frame 202 is used to align the first mounting hole 2024 at different positions with the second mounting hole 2011 to achieve height adjustment.

[0027] Specifically, the support frame 201 includes a first column 2012, a second column 2013 and a crossbeam 2014. The first column 2012 is connected to the first side plate 2021, and the second column 2013 is connected to the second side plate 2022. At least two first columns 2012 and two second columns 2013 are provided. The two ends of the crossbeam 2014 are fixedly connected between every two first columns 2012, between every two second columns 2013, and between the first column 2012 and the second column 2013; The second mounting holes 2011 are respectively provided on the first column 2012 and the second column 2013, and are respectively located near the top of the first column 2012 and the second column 2013.

[0028] When the support frame 201 is connected to the lifting frame 202, at least two first columns 2012 are attached to the first side plate 2021, and the first mounting holes 2024 and second mounting holes 2011 of suitable height are selected to correspond. The first locking bolts 204 are inserted into the first mounting holes 2024 and the second mounting holes 2011, so that the first columns 2012 and the first side plate 2021 are fixedly connected, and the first side plate 2021 is supported by the first columns 2012. Similarly, the second column 2013 selects the first mounting hole 2024 of the same height to correspond with the second mounting hole 2011, and the second column 2013 and the second side plate 2022 are fixedly connected by the first locking bolt 204, so that the second column 2013 supports the second side plate 2022.

[0029] Prior to this, multiple first columns 2012, multiple second columns 2013, and the first column 2012 and the second column 2013 can be connected by the crossbeam 2014. The connection method can be welding to form a support frame 201. At this time, the first column 2012 and the second column 2013 are located on both sides of the conveyor 10, and the crossbeam 2014 is located at the bottom of the conveyor 10.

[0030] Furthermore, multiple second mounting holes 2011 are provided, and multiple first mounting holes 2024 and multiple second mounting holes 2011 are spaced apart in the vertical direction, which can further improve the selectivity of installation.

[0031] Furthermore, a plurality of third mounting holes 2025 are provided on the first side plate 2021 and the second side plate 2022. The third mounting holes 2025 are used for mounting the bearing seat 2031, and the two ends of the limiting roller 203 are respectively rotatably connected to the bearing seat 2031. Multiple third mounting holes 2025 are spaced apart along the conveying direction of the conveyor 10, and the height of the third mounting holes 2025 gradually decreases along the conveying direction of the conveyor 10.

[0032] Specifically, the slope of the connecting line between the centers of every two third mounting holes 2025 is the same, and the inclination angle of the connecting line between the centers of every two third mounting holes 2025 relative to the horizontal line is in the range of 5°-20°.

[0033] By setting multiple third mounting holes 2025, the installation heights of multiple limiting rollers 203 are different and gradually decrease along the conveying direction, which can perform step-by-step limiting control on the material conveyed on the conveyor 10. For example, along the conveying direction of the conveyor 10, the first limiting roller 203 can limit tobacco leaves with a thickness of 160mm, the second limiting roller 203 can limit tobacco leaves with a thickness of 140mm, and so on, decreasing in that order.

[0034] Furthermore, the first side plate 2021 and the second side plate 2022 are configured as trapezoidal structures with their tops inclined, and the connecting lines between the top planes of the first side plate 2021 and the second side plate 2022 and the centers of every two third mounting holes 2025 are parallel to each other.

[0035] With this configuration, when the top plate 2023 is installed with the first side plate 2021 and the second side plate 2022, the top plate 2023 is placed on top of both and is tilted as a whole, which can save installation space to a certain extent.

[0036] Furthermore, a through fourth mounting hole 2026 is provided on the top plate 2023. When the detection device 30 is installed on the top plate 2023, the probe of the detection device 30 is inserted into the fourth mounting hole 2026, which enables the detection of the moisture content of the tobacco leaves on the conveyor 10 inside the lifting frame 202.

[0037] Furthermore, the support frame 201, lifting frame 202, limiting roller 203, and bearing seat 2031 are made of stainless steel, which can improve the service life of the equipment and prevent rust.

[0038] In summary, through the solution of this utility model, the support frame 201 is detachably installed on both sides of the conveyor 10, and the limiting structure 20 can be moved according to production requirements. At the same time, through the connection between the lifting frame 202 and the support frame 201, the height of the lifting frame 202 can be freely adjusted, thereby adjusting the setting height of its upper limit roller 203, so as to realize the limiting control of the thickness of the material conveyed on the conveyor 10.

[0039] The above description is merely a preferred embodiment of this application. Those skilled in the art should understand that the scope of disclosure in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A conveyor movable stop device, characterized by, include: Conveyor, used to transport tobacco leaves; The limiting structure includes a support frame, a lifting frame, and a limiting roller. The support frame is detachably installed on both sides of the conveyor. The bottom of the lifting frame is detachably connected to the support frame. The conveyor passes through the lifting frame. The limiting roller is horizontally arranged inside the lifting frame and perpendicular to the conveying direction of the conveyor. Multiple limiting rollers are provided, and the multiple limiting rollers are arranged sequentially at intervals along the conveying direction of the conveyor, and the setting height of the multiple limiting rollers gradually decreases.

2. A portable position-limiting device for a conveyor as claimed in claim 1, characterized in that It also includes a detection device, which is installed on the top of the lifting frame, and the detection device is used to detect the moisture content of the tobacco leaves conveyed on the conveyor inside the lifting frame.

3. A portable position-limiting device for a conveyor as claimed in claim 2, characterized in that The lifting frame includes a first side plate, a second side plate, and a top plate. The first side plate and the second side plate are respectively disposed on both sides of the top plate, and the first side plate and the second side plate are respectively located on both sides of the conveyor and are detachably connected to the support frame. The top plate is located on the top of the conveyor. A plurality of first mounting holes are provided on the first side plate and the second side plate, and a second mounting hole is provided on the support frame. The first mounting holes and the second mounting holes are used for inserting a first locking bolt so that the first side plate and the second side plate are fixedly connected to the support frame. The lifting frame is used to align the first mounting hole at different positions with the second mounting hole to achieve height adjustment.

4. A portable position-limiting device for a conveyor as claimed in claim 3, characterized in that Multiple third mounting holes are provided on the first side plate and the second side plate. The third mounting holes are used for bearing seat installation. The two ends of the limiting roller are respectively rotatably connected to the bearing seat. The plurality of third mounting holes are spaced apart along the conveyor conveying direction, and the height of the third mounting holes gradually decreases along the conveyor conveying direction.

5. A portable position-limiting device for a conveyor as set forth in claim 4, characterized in that The slope of the connecting line between the centers of every two third mounting holes is the same, and the angle of inclination of the connecting line between the centers of every two third mounting holes relative to the horizontal line is in the range of 5°-20°.

6. A portable position-limiting device for a conveyor as set forth in claim 3, characterized in that The support frame includes a first column, a second column, and a crossbeam. The first column is connected to the first side plate, and the second column is connected to the second side plate. At least two first columns and two second columns are provided. The two ends of the crossbeam are fixedly connected between every two first columns, between every two second columns, and between the first column and the second column; The second mounting holes are respectively provided on the first column and the second column, and are respectively located near the top of the first column and the second column.

7. A portable position-limiting device for a conveyor as set forth in claim 5, characterized in that The tops of the first and second side plates are inclined, and the top planes of the first and second side plates are parallel to the connecting line between the centers of each pair of third mounting holes.

8. A portable position-limiting device for a conveyor as set forth in claim 3, characterized in that A fourth through mounting hole is provided on the top plate, the detection device is mounted on the top plate, and the probe of the detection device is inserted into the fourth mounting hole.

9. A portable position-limiting device for a conveyor as set forth in claim 3, characterized in that The second mounting hole is provided in multiple ways, and the multiple first mounting holes and the multiple second mounting holes are arranged at intervals in the vertical direction.

10. A movable limiting device for a conveyor according to claim 1, characterized in that, The support frame, lifting frame, and limiting roller are made of stainless steel.

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