Tobacco leaf sampling device in cold room
The automatic sampling device driven by the lifting module and control module solves the consistency and safety problems of manual sampling, realizes high efficiency, accuracy and safety of tobacco moisture detection, reduces sampling error and ensures the systematicness and representativeness of the samples.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-03-27
AI Technical Summary
In existing technologies, manual sampling in tobacco re-drying machines is difficult to guarantee in terms of consistency and accuracy of sampling results, and poses safety hazards. The sampling depth and position are highly uncertain, resulting in large errors in moisture detection.
An automatic sampling device consisting of a lifting module, a sampling module, and a control module is used. The sampler is driven to take samples at designated points and depths through a lifting bracket, rotating pulleys, and guide rails, ensuring the consistency and safety of each sampling. The control module enables automated operation.
It achieves high efficiency, accuracy and safety in tobacco leaf moisture detection, reduces sampling errors, ensures the systematicness and representativeness of samples, and avoids the subjectivity and uncertainty of manual sampling.
Smart Images
Figure CN224051693U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of tobacco processing, especially to a cold room tobacco leaf sampling device. BACKGROUND
[0002] Primary cured tobacco, as the main raw material of the threshing and redrying enterprise, needs to be processed through a series of processes to be changed into finished tobacco for cigarette production. The threshing and stem-removing process is a key step in this process, which aims to effectively separate tobacco leaves and stems in the tobacco leaves and ensure that the preset technical indicators are met. The redrying process is further processing of tobacco leaves after threshing and stem-removing. The tobacco leaves are evenly laid on the mesh belt by the leaf redrying machine to form a layer of a certain thickness, usually between 60mm and 120mm. After drying, cooling and humidifying, the moisture content of the tobacco leaves is accurately controlled within the technical indicators that meet the product quality standards.
[0003] During the processing of primary cured tobacco on the threshing and redrying production line, strict process quality inspection is required for the products in process. One of the most important inspection items is to detect the moisture content of the tobacco leaves in the cooling zone of the tobacco leaf redrying machine. According to the industry standard document YC / T 147-2023 Quality Requirements for Threshed Tobacco, samples should be taken from both sides of the machine vertically and then quickly put into the sampling container and sealed for inspection. However, the structure and drying principle of the tobacco leaf redrying machine determine that there is a difference in moisture content at the same point on the mesh belt after drying and at different depths of the layer.
[0004] The current commonly used method for sampling tobacco leaves is manual hand grabbing, which has several drawbacks, such as: different sampling personnel due to different palm sizes and different grabbing methods, which can cause significant errors in detecting the moisture content of tobacco leaf samples, making it difficult to ensure the consistency and accuracy of the sampling results; due to the subjectivity and uncertainty of human operation, the point of sampling each time the arm is inserted into the cooling zone is difficult to ensure completely the same, which further increases the risk of errors in sampling the moisture content of tobacco leaf samples; due to the thick layer of tobacco leaves inside the tobacco leaf redrying machine, there are differences in grabbing depth, grabbing amount and the proportion of upper, middle and lower layers of tobacco leaves each time manual sampling is performed, which can cause errors in the detection results of the moisture content of tobacco leaf samples. SUMMARY
[0005] The utility model aims to provide a cold room tobacco leaf sampling device to replace manual sampling and hand grabbing, improve operational safety, ensure that sampling is performed at the same sampling point and depth each time, avoid the subjectivity and uncertainty of manual operation, reduce sampling differences and achieve more efficient and accurate automatic sampling in cold room moisture detection.
[0006] To achieve the purpose, the utility model discloses the following technical scheme:
[0007] The cold room tobacco sampling device comprises:
[0008] The lifting module comprises a fixed support, a lifting support and a rotating pulley, the fixed support is fixed in the cold room sampling window, one end of the lifting support is connected with the fixed support, and the other end of the lifting support is connected with the rotating pulley.
[0009] The sampling module comprises a guide rail, a sliding table and a sampler, the guide rail is rotationally connected with the rotating pulley, the guide rail is horizontal and perpendicular to the extension direction of the cold room tobacco conveying belt, and two sliding tables are slidably arranged on the guide rail along the extension direction.
[0010] The control module can drive the two sliding tables to move, so that the projections of the two sliding tables on the cold room tobacco conveying belt are symmetrical relative to the central axis of the cold room tobacco conveying belt, the control module can drive the lifting support to change the height of the sampling module, so that the sampler is lowered into the cooling area material on the cold room tobacco conveying belt or is raised to the edge of the cold room sampling window, and the control module can drive the rotating pulley, so that the guide rail rotates.
[0011] As an optional technical scheme of the cold room tobacco sampling device, the rotating pulley comprises an inner ring and an outer ring, the outer ring is rotationally connected with the inner ring in a coaxial manner, the lifting support is connected with the outer ring, and the guide rail is connected with the inner ring.
[0012] As an optional technical scheme of the cold room tobacco sampling device, the cold room tobacco sampling device comprises two lifting modules, the two fixed supports are fixed in the two opposite cold room sampling windows respectively, and the two ends of the guide rail are connected with the two rotating pulleys respectively.
[0013] As an optional technical scheme of the cold room tobacco sampling device, the guide rail is divided into a first section and a second section, the projections of the first section and the second section on the cold room tobacco conveying belt are symmetrical relative to the central axis of the cold room tobacco conveying belt, the first section and the second section are spaced apart and correspond to the two sliding tables one by one, and the two ends of the first section and the second section, which are away from each other, are connected with the two rotating pulleys respectively.
[0014] As an optional technical scheme of the cold room tobacco sampling device, the sampler is arranged as a bucket-shaped container.
[0015] As an optional technical scheme of the cold room tobacco sampling device, the rotating direction of the guide rail is opposite to the running direction of the cold room tobacco conveying belt.
[0016] As an optional technical scheme of the cold room tobacco sampling device, a vertical section of the bucket-shaped container is a parallelogram, when the guide rail rotates, an inner wall of the bucket-shaped container faces a running direction of the cold room tobacco conveying belt and contacts with the cooling area material.
[0017] As an optional technical scheme of the cold room tobacco sampling device, a sampling amount of the sampler after one rotation ranges from 80g to 120g.
[0018] As an optional technical scheme of the cold room tobacco sampling device, the control module can drive the guide rail to rotate forward or reversely.
[0019] As an optional technical scheme of the cold room tobacco sampling device, the cold room tobacco sampling device further comprises a collector fixed at an edge of the cold room sampling window, and the collector is used for containing the sample in the sampler.
[0020] The cold room tobacco sampling device has the following beneficial effects:
[0021] The tobacco leaf sampling device for cold storage rooms provided by this utility model includes a lifting module, a sampling module, and a control module. The lifting module includes a fixed bracket, a lifting bracket, and a rotating pulley. The fixed bracket is fixed inside the sampling window of the cold storage room. One end of the lifting bracket is connected to the fixed bracket, and the other end of the lifting bracket is connected to the rotating pulley. The sampling module includes a guide rail, a sliding table, and a sampler. The guide rail is rotatably connected to the rotating pulley and is horizontal and perpendicular to the extension direction of the tobacco leaf conveyor belt in the cold storage room. Two sliding tables are slidably arranged along the extension direction of the guide rail, and each sliding table is connected to a sampler. The control module can drive the two sliding tables to move, so that the projection of the two sliding tables on the tobacco leaf conveyor belt in the cold storage room is symmetrical with respect to the central axis of the tobacco leaf conveyor belt in the cold storage room. This allows the sampler to move to a designated sampling point or return to the edge of the sampling window in the cold storage room, ensuring that each sampling is performed at the same sampling point, avoiding the subjectivity and uncertainty of manual operation, and reducing the error risk of moisture detection sampling. Moreover, compared with the single grabbing method of manual sampling, this tobacco leaf sampling device for cold storage rooms can also adjust the sampling point, ensuring the systematicness and representativeness of the material sample. The control module can also drive the lifting bracket to change the height of the sampling module, allowing the sampler to descend to a designated sampling depth in the cooling zone material on the tobacco conveyor belt of the cold room. This ensures that the depth of insertion into the cooling zone material is consistent each time, reducing sampling variability and minimizing errors in moisture detection results. The control module can also drive a rotating pulley to rotate the guide rail, causing the sampling module to rotate and extend into the cooling zone material to grab samples. After completely grabbing all material samples from the upper, middle, and lower parts of the same location in the cooling zone, the control module drives the lifting bracket to raise the sampling module to the edge of the cold room sampling window, completing the sampling. This replaces the manual grabbing action in manual sampling, effectively avoiding safety issues associated with manual sampling. Because the two samplers are of the same specification, compared to manual sampling, it further effectively eliminates the variability in sample volume each time, achieving more efficient and accurate automatic sampling in cold room moisture detection. Attached Figure Description
[0022] Figure 1 This is a front view of the cold room tobacco sampling device provided in a specific embodiment of this utility model;
[0023] Figure 2 This is a partial top view of the tobacco sampling device in the cold room provided in a specific embodiment of this utility model.
[0024] Figure 3 This is a partial side view of the tobacco leaf sampling device in a cold room according to a specific embodiment of this utility model.
[0025] Figure 4 This is a side view of the lifting module and guide rail of the cold room tobacco sampling device provided in a specific embodiment of this utility model.
[0026] In the picture:
[0027] 100, lifting module; 101, fixed support; 102, lifting support; 103, rotating pulley;
[0028] 200, sampling module; 201, guide rail; 2011, first section; 2012, second section; 202, sliding table; 203, sampler;
[0029] 600, cold room sampling window; 700, cold room tobacco leaf conveying belt. DETAILED DESCRIPTION
[0030] The utility model will be described in further detail below in combination with the drawings and examples. It can be understood that the specific examples described herein are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for ease of description, not all the structures.
[0031] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0032] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0033] In the description of the embodiment, the terms "upper", "lower", "right", "left" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in description, and have no special meaning.
[0034] AsFigures 1 to 4 The utility model discloses a cold room tobacco leaf sampling device shown in the middle, including lifting module 100, sampling module 200 and control module for the automatic sampling device of moisture detection after threshing and redrying. Lifting module 100 includes fixed support 101, lifting support 102 and rotating pulley 103, and the fixed support 101 is fixed in the cold room sampling window 600, and one end of the lifting support 102 is connected with the fixed support 101, and the other end of the lifting support 102 is connected with the rotating pulley 103, sampling module 200 includes guide rail 201, sliding table 202 and sampler 203, and the guide rail 201 is rotatably connected with the rotating pulley 103, and the guide rail 201 is horizontal and perpendicular to the extension direction of the cold room tobacco conveying belt 700, and the guide rail 201 can reciprocate between the cold room sampling window 600 and the material on the cold room tobacco conveying belt 700 through the action of the lifting support 102, two sliding tables 202 are slidably arranged along the extension direction of the guide rail 201, one sampler 203 is connected with each sliding table 202, and the two samplers 203 are consistent in specification.
[0035] The control module realizes automatic control through the electric control system and host computer, one-key start and stop, can drive two sliding tables 202 to move, so that the projection of the two sliding tables 202 on the cold room tobacco conveying belt 700 is symmetrical relative to the central axis of the cold room tobacco conveying belt 700, drives the sampler 203 to run to the same position of the two cold room sampling windows 600 in the cold room and is fixed, the sliding table 202 can support the sampler 203 to move to the specified sampling point and the sampler 203 to move to the edge of the cold room sampling window 600 after sampling, ensures that sampling is carried out at the same sampling point each time, avoids the subjectivity and uncertainty of manual operation, reduces the error risk of moisture detection sampling, and compared with the single grabbing mode of manual sampling, the cold room tobacco sampling device can also adjust the sampling point, guarantees the systematicness and representativeness of the material sample.
[0036] The control module can also drive the lifting support 102 to change the height of the sampling module 200, so as to support the sampler 203 to descend to a specified sampling depth in the material in the cooling area on the tobacco conveying belt 700 for sampling, and ensure that the depth of the sampling into the material in the cooling area is the same each time, reduce the sampling difference, and reduce the error of the moisture detection result. While the lifting support 102 is descending, the control module can drive the rotating pulley 103 to rotate the guide rail 201, drive the sampling module 200 to rotate, and enable the sampler 203 to extend into the bottom of the material in the cooling area to grab the material sample, so as to ensure that all the material samples in the upper part, the middle part and the lower part of the same position in the material in the cooling area are completely grabbed, and replace the manual grabbing action in manual sampling, which not only effectively avoids the safety problem in manual sampling, but also further effectively eliminates the difference in the sampling amount each time in manual sampling due to the same specifications of the two samplers 203.
[0037] Specifically, the rotating pulley 103 includes an inner ring and an outer ring, the outer ring is coaxially connected with the inner ring, the lifting support 102 is connected with the outer ring, and the guide rail 201 is connected with the inner ring. When the cold room tobacco sampling device is in an idle state, the rotating pulley 103 makes the guide rail 201 and the opening direction of the sampler 203 horizontal; when the cold room tobacco sampling device is in a working state, the rotating pulley 103 drives the guide rail 201 to rotate, and the sampler 203 can rotate to approach the material in the cooling area to obtain the material sample from the opening.
[0038] Further, the cold room tobacco sampling device includes two lifting modules 100, and the two fixed supports 101 are respectively fixed to the top of the corresponding height in the opposite two cold room sampling windows 600 and are installed on the left and right sides of the cold room at the same position and in the same horizontal direction. Similarly, the two ends of the guide rail 201 are connected with the two rotating pulleys 103, and are located between the two cold room sampling windows 600, so that the installation of the cold room tobacco sampling device is more firm, the horizontal position of the guide rail 201 is maintained, and the sampling is stable.
[0039] In the embodiment, the guide rail 201 is divided into left and right symmetrical first and second sections 2011 and 2012 with the middle axis of the width center line of the cold room tobacco conveying belt 700 as the axis, the guide rail 201 is transversely arranged between the two cold room sampling windows 600, the first and second sections 2011 and 2012 are independently spaced and arranged one by one with the two sliding platforms 202, and the lengths of the first and second sections 2011 and 2012 are each half of the distance between the two cold room sampling windows 600. The two ends of the first and second sections 2011 and 2012 away from each other are respectively connected with the two rotating pulleys 103, so that the whole cold room tobacco sampling device is symmetrical, and the sliding platforms 202 and the samplers 203 can be conveniently separately disassembled, adjusted or installed.
[0040] Optionally, the cold room tobacco sampling device also includes a collector fixed to the edge of the cold room sampling window 600 for holding the sample inside the sampler 203. After pressing the "Sampling" button on the control module, the two slides 202, located at the edges of the two cold room sampling windows 600, simultaneously drive the sampler 203 to move the same distance to the designated position and fix it. The lifting bracket 102 then moves down a fixed distance, allowing the sampler 203 to reach the bottom of the material in the cooling zone. The rotating pulley 103 drives the guide rail 201 to rotate, causing the sampler 203 to rotate and collect the sample. After one rotation, the lifting bracket 102 moves up until the sampler 203 is completely removed from the material in the cooling zone. Then, the slides 202 drive the sampler 203 to move back to the edge of the cold room sampling window 600. The rotating pulley 103 rotates again, and the slides 202 drive the sampler 203 to rotate again, causing the material sample to fall into the collector. The slides 202 then reset, completing one sampling operation. For example, the collector can be a pre-prepared sampling bag. To better collect the material sample, a funnel can also be fixed to the sampling bag.
[0041] Specifically, the sampler 203 is designed as a funnel-shaped container, making it easier to scoop up and hold material samples. Furthermore, the rotation direction of the guide rail 201 is opposite to the running direction of the tobacco conveyor belt 700 in the cooling room, and the height of the sampler 203's container is slightly greater than the thickness of the material in the cooling zone. For example... Figure 3 As shown, the vertical cross-section of the bucket-shaped container is a parallelogram. When the guide rail 201 rotates, the inner wall of the bucket-shaped container faces the running direction of the tobacco conveyor belt 700 in the cooling room and comes into contact with the material in the cooling zone. This ensures that all material samples from the upper, middle, and lower parts of the material in the cooling zone are captured at the same location and that the content is consistent. For example, the sampling amount after one rotation of the sampler 203 ranges from 80 grams to 120 grams.
[0042] Optionally, the control module can drive the guide rail 201 to rotate forward or backward, meaning that the sampling module 200 can complete the sampling without rotating a full revolution. When the cold room tobacco sampling device switches from an idle state to a working state, the rotating pulley 103 drives the guide rail 201 to rotate, and drives the sampler 203 to rotate 180° or 270° to sample before returning to the edge of the cold room sampling window 600. The rotating pulley 103 then drives the guide rail 201 to rotate in the opposite direction, and the sampler 203 rotates back. When the sampler 203 opens downward, the material sample falls into the collector. Subsequently, the sampler 203 returns to its initial position in the horizontal opening direction, completing one sampling action. The operation of the cold room tobacco sampling device is more flexible, reducing the rotation stroke and effectively saving energy.
[0043] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to exhaust all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claim.
Claims
1. A cold room tobacco sampling device, characterized in that, The application relates to a cold room tobacco leaf sampling device. The device comprises a lifting module (100), a sampling module (200) and a control module. The lifting module (100) comprises a fixed support (101), a lifting support (102) and a rotating pulley (103), the fixed support (101) is fixed in a cold room sampling window (600), one end of the lifting support (102) is connected with the fixed support (101), and the other end of the lifting support (102) is connected with the rotating pulley (103). The sampling module (200) comprises a guide rail (201), a sliding table (202) and a sampler (203), the guide rail (201) is rotationally connected with the rotating pulley (103), the guide rail (201) is horizontal and perpendicular to the extension direction of a cold room tobacco leaf conveying belt (700), and two sliding tables (202) are arranged on the guide rail (201) along the extension direction, and each sliding table (202) is connected with a sampler (203).
2. The cold room tobacco leaf sampling device of claim 1, wherein, The control module can drive the two sliding tables (202) to move, so that the projections of the two sliding tables (202) on the cold room tobacco leaf conveying belt (700) are symmetrical relative to the central axis of the cold room tobacco leaf conveying belt (700); the control module can drive the lifting support (102) to change the height of the sampling module (200), so that the sampler (203) can be lowered into the material on the cooling area of the cold room tobacco leaf conveying belt (700) or raised to the edge of the cold room sampling window (600); and the control module can drive the rotating pulley (103) to make the guide rail (201) rotate.
3. The conditioned tobacco leaf sampling device of claim 1, wherein, The rotating pulley (103) comprises an inner ring and an outer ring, the outer ring is coaxially rotationally connected with the inner ring, the lifting support (102) is connected with the outer ring, and the guide rail (201) is connected with the inner ring.
4. The conditioned tobacco leaf sampling device of claim 3, wherein, The cold room tobacco leaf sampling device comprises two lifting modules (100), two fixed supports (101) are respectively fixed in two opposite cold room sampling windows (600), and two ends of the guide rail (201) are respectively connected with two rotating pulleys (103).
5. The cold room tobacco leaf sampling device of claim 1, wherein, The guide rail (201) is divided into a first section (2011) and a second section (2012), the projections of the first section (2011) and the second section (2012) on the cold room tobacco leaf conveying belt (700) are symmetrical relative to the central axis of the cold room tobacco leaf conveying belt (700), the first section (2011) and the second section (2012) are spaced apart and correspond to the two sliding tables (202) one by one, and the two ends of the first section (2011) and the second section (2012) away from each other are respectively connected with the two rotating pulleys (103).
6. The cold room tobacco leaf sampling device of claim 5, wherein, The sampler (203) is arranged in the form of a bucket. The rotating direction of the guide rail (201) is opposite to the running direction of the cold room tobacco leaf conveying belt (700).
7. The cooled tobacco leaf sampling device of claim 6, wherein, The vertical section of the bucket-shaped container is parallelogram, when the guide rail (201) rotates, the inner wall of the bucket-shaped container faces the running direction of the cold room tobacco leaf conveying belt (700) and contacts with the material in the cooling area.
8. The cooled tobacco leaf sampling device of claim 5, wherein, The sampling amount of the sampler (203) after one rotation ranges from 80 grams to 120 grams.
9. The cooled tobacco leaf sampling device of claim 5, wherein, The control module can drive the guide rail (201) to rotate forward or reversely.
10. The cold room tobacco leaf sampling device according to any one of claims 1-9, wherein, The cold room tobacco leaf sampling device further comprises a collector fixed on the edge of the cold room sampling window (600), which is used for containing the sample in the sampler (203).