High-temperature and high-humidity tobacco material on-line quantitative sampling device

Abstract

The application discloses a kind of high temperature and high humidity tobacco material on-line quantitative sampling device, including movable workstation, and is equipped with stamping quantitative sampling mechanism and weighing mechanism on movable workstation;Stamping quantitative sampling mechanism includes base, and is equipped with mounting plate on the column of base, and is equipped with stamping cylinder on mounting plate, and the piston rod of stamping cylinder is detachably installed with stamping sampling assembly, and stamping sampling assembly includes mounting sleeve, cutting sampling head, and cutting sampling head bottom is equipped with cutting knife, and the center hole of cutting sampling head is slidably provided with jack rod, and jack rod bottom end is connected with top plate, and top end is connected with operating lever, and operating lever can be vertically moved in operating slot, to drive jack rod and top plate to move together;Base is opened with positioning placement groove.The advantages of the present application: realize the on-line quantitative sampling and timely weighing of high temperature and high humidity tobacco material, to ensure the accuracy of sample moisture content detection.

Description

Technical Field

[0001] This invention relates to the field of tobacco testing and sampling equipment technology, and in particular to an online quantitative sampling device for high-temperature and high-humidity tobacco materials. Background Technology

[0002] Moisture content of tobacco materials is a crucial quality indicator in cigarette processing, determining not only the physical and sensory quality of tobacco products but also directly impacting the processing intensity and control level of each step. According to tobacco processing technology requirements, the moisture content of the tobacco sheets produced in the pre-treatment section of the cigarette manufacturing line, after leaf trimming and stem removal, must be controlled in both the loosening and rehydration stages and the leaf moistening and feeding stages. In the pre-treatment stage, a high-temperature, high-humidity processing medium is used to heat and humidify the tobacco sheets, resulting in high-temperature, high-humidity tobacco sheets. Online continuous monitoring and control of the moisture content is typically achieved using an online infrared moisture meter. However, the calibration of the online moisture meter and the quality assessment of the tobacco sheet moisture content still require offline laboratory testing of the high-temperature, high-humidity tobacco sheet moisture content using an oven drying method. This involves calculating the moisture content by comparing the weight of the dried sample with the weight of the undried sample. The sampling method for offline testing of high-temperature and high-humidity tobacco flakes in laboratories is not explicitly regulated in relevant national or industry standards. Currently, the common practice is to manually collect tobacco flakes at the discharge points of each processing equipment, place them in sealed bags or boxes, and then take them to the laboratory for cutting or grinding into powder before packaging them into oven-drying test kits. Because tobacco is a porous medium and easily exchanges heat and mass with the environment, temperature changes can lead to moisture loss. This method requires sending samples to the laboratory for processing before oven-drying testing. During the process from sampling at each processing equipment to subsequent testing, the sample may experience temperature drops due to prolonged residence time, causing moisture changes, or moisture loss may occur during cutting and grinding in the laboratory. Therefore, the weight of the sample before drying cannot accurately reflect the true weight of the tobacco material at the discharge points of each processing equipment when measuring the moisture content, thus affecting the accuracy of the moisture content readings. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an online quantitative sampling device for high-temperature and high-humidity tobacco materials, so as to realize online quantitative sampling and timely weighing of high-temperature and high-humidity tobacco materials, ensuring the accuracy of the weight before drying when detecting the moisture content of the sample, and thus ensuring the accuracy of the moisture content of the sample.

[0004] This invention is achieved through the following technical solution:

[0005] A high-temperature and high-humidity tobacco material online quantitative sampling device includes a movable worktable, on which a stamping quantitative sampling mechanism and a weighing mechanism are provided, and the weighing mechanism is located next to the stamping quantitative sampling mechanism.

[0006] The stamping quantitative sampling mechanism includes a base, a mounting plate on the column of the base, a stamping cylinder on the mounting plate, a piston rod of the stamping cylinder extending vertically downwards and detachably mounted with a stamping sampling assembly, the stamping sampling assembly including a mounting sleeve and a cutting sampling head, the mounting sleeve being detachably mounted on the bottom end of the piston rod of the stamping cylinder, the cutting sampling head having an annular cutting blade at its bottom, the internal space of the cutting blade forming a sampling space, the upper part of the cutting sampling head being inserted upwards into the internal channel of the mounting sleeve and detachably connected to the mounting sleeve, the cutting sampling head having a vertically extending central hole at its center, for cutting sampling... A top rod is slidably installed in the central hole of the head. The bottom end of the top rod extends downward below the cutting sampling head and is connected to a top plate. The top plate is located in the sampling space and can move vertically within the sampling space. The top end of the top rod extends upward above the cutting sampling head and is connected to an operating rod. A vertically extending operating groove is opened on one side of the mounting sleeve. The operating rod extends out of the mounting sleeve from the operating groove. By moving the operating rod up and down, the operating rod can move vertically in the operating groove, thereby driving the top rod and the top plate to move together. The base has a positioning slot for placing the sampling box. The sampling box is placed in the positioning slot and is located below the cutting sampling head.

[0007] As a preferred embodiment of the above-mentioned device, the mounting plate is provided with a guide assembly for guiding the vertical movement of the piston rod of the stamping cylinder. The guide assembly includes a guide rod, a guide sleeve, and a connecting plate. The guide sleeve is fixedly mounted on the mounting plate. The guide rod is slidably disposed in the guide hole of the guide sleeve and can slide vertically along the guide hole. The guide rod and the piston rod of the stamping cylinder are arranged side by side. The connection between the guide rod and the piston rod of the stamping cylinder is realized through the connecting plate.

[0008] As a preferred embodiment of the above-mentioned device, the top end of the mounting sleeve is threadedly connected to the bottom end of the piston rod of the stamping cylinder, the connecting plate is fitted onto the piston rod of the stamping cylinder, the bottom of the connecting plate is pressed and limited by the top end of the mounting sleeve, and the top of the connecting plate is pressed and limited by the limiting step set on the piston rod of the stamping cylinder.

[0009] As a preferred embodiment of the above-mentioned device, a limiting groove is formed on the outer circumference of the upper part of the cutting sampling head, and a limiting screw hole is formed on the mounting sleeve at the corresponding limiting groove. The limiting handle is screwed into the limiting screw hole and embedded in the limiting groove of the cutting sampling head to achieve the locking installation of the cutting sampling head and the mounting sleeve.

[0010] As a preferred embodiment of the above-mentioned device, the mounting plate is slidably fitted with the column, and a fixed plate is provided at the top of the column. The fixed plate has an adjusting screw hole, and the mounting plate has a through hole. The adjusting screw is threadedly fitted with the adjusting screw hole. The adjusting screw passes through the adjusting screw hole and the through hole from top to bottom. An upper limit nut and a lower limit nut are screwed on the adjusting screw at the top and bottom surfaces of the mounting plate, respectively. By rotating the adjusting screw, the mounting plate is raised and lowered.

[0011] As a preferred embodiment of the above-mentioned device, the positioning groove of the base is a strip-shaped groove extending in the front-back direction. The width of the positioning groove matches the width of the sampling box, and the length of the positioning groove is greater than the length of the sampling box, allowing the sampling box to slide back and forth in the positioning groove.

[0012] As a preferred embodiment of the above-mentioned device, the bottom of the movable workbench is provided with multiple casters.

[0013] As a preferred embodiment of the above-mentioned device, the mobile workbench includes two independent mobile workbench frames, and the stamping quantitative sampling mechanism and the weighing mechanism are respectively installed on the two mobile workbench frames. The two mobile workbench frames are detachably connected by a connecting structure.

[0014] As a preferred embodiment of the above-mentioned device, the front side of the mobile workbench is provided with multiple storage drawers, and each storage drawer has multiple storage slots.

[0015] The present invention has the following advantages over the prior art:

[0016] This invention provides an online quantitative sampling device for high-temperature and high-humidity tobacco materials. By simultaneously installing a stamping quantitative sampling mechanism and a weighing mechanism on a movable worktable, it achieves online quantitative sampling and timely weighing of tobacco leaf samples. This effectively avoids moisture loss due to ambient temperature and humidity or during laboratory cutting operations, ensuring the accuracy of the sample weight before drying when calculating moisture content. It provides a reliable detection method for the research of refined tobacco raw material processing technology and the optimization of processing parameters. Furthermore, the stamping quantitative sampling mechanism uses a stamping cylinder to drive the vertical movement of the cutting sampling head. The cutting blade at the bottom of the cutting sampling head enables rapid quantitative sampling of the tobacco leaf material in the sampling box below. The sample can be quickly discharged by moving the operating lever. The entire operation is convenient, fast, and efficient, with an ingenious structural design. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a perspective view of the stamping quantitative sampling mechanism of the present invention.

[0019] Figure 3 This is a side view of the stamping quantitative sampling mechanism of the present invention.

[0020] Figure 4 A three-dimensional cross-sectional view of the stamping quantitative sampling mechanism of the present invention.

[0021] The following components are labeled in the diagram: 1. Stamping quantitative sampling mechanism; 2. Weighing mechanism; 3. Storage drawer; 4. Movable workbench; 5. Buckle; 6. Base; 7. Column; 8. Mounting plate; 9. Stamping cylinder; 10. Piston rod; 11. Mounting sleeve; 12. Cutting sampling head; 13. Cutting knife; 14. Sampling space; 15. Internal channel; 16. Limiting groove; 17. Limiting handle; 18. Top rod; 19. Top plate; 20. Operating rod; 21. Operating slot; 22. Positioning slot; 23. Guide rod; 24. Guide sleeve; 25. Connecting plate; 26. Fixing plate; 27. Adjusting screw; 28. Upper limit nut; 29. ​​Lower limit nut; 30. Moving wheel; 31. Sampling box. Detailed Implementation

[0022] The embodiments of the present invention are described in detail below. These embodiments are implemented based on the technical solution of the present invention, and provide detailed implementation methods and specific operation processes. However, the scope of protection of the present invention is not limited to the following embodiments.

[0023] See Figures 1 to 4 This embodiment discloses an online quantitative sampling device for high-temperature and high-humidity tobacco materials, including a movable worktable. The movable worktable is equipped with a stamping quantitative sampling mechanism 1 and a weighing mechanism 2. The weighing mechanism 2 is located beside the stamping quantitative sampling mechanism 1 and can be a high-precision electronic balance. The bottom of the movable worktable is equipped with multiple casters 30. The front of the movable worktable has multiple storage drawers 3, each with multiple storage slots. The movable worktable includes two independent movable worktable frames 4. The stamping quantitative sampling mechanism 1 and the weighing mechanism 2 are respectively mounted on the two movable worktable frames 4. The two movable worktable frames 4 are detachably connected by a connecting structure. They can be locked together by a latch 5 and a screw, facilitating their joint movement. During operation, the two movable worktable frames 4 can be disassembled to prevent interference. In this embodiment, the stamping quantitative sampling mechanism 1 and the weighing mechanism 2 are respectively set on two independent mobile workbenches 4, which can ensure that the weighing process is not affected by the vibration of the stamping quantitative sampling mechanism 1 during stamping, thus ensuring the accuracy and temperature stability of the weighing results.

[0024] The stamping quantitative sampling mechanism 1 includes a base 6, which is mounted on the top of a corresponding movable workbench 4. A mounting plate 8 is provided on the column 7 of the base 6, and a stamping cylinder 9 is provided on the mounting plate 8. The piston rod 10 of the stamping cylinder 9 extends vertically downward and is detachably mounted with a stamping sampling assembly. The stamping sampling assembly includes a mounting sleeve 11 and a cutting sampling head 12. The mounting sleeve 11 is detachably mounted on the bottom end of the piston rod 10 of the stamping cylinder 9. The bottom of the cutting sampling head 12 is provided with a ring-shaped cutting blade 13. The internal space of the cutting blade 13 forms a sampling space 14. The cutting blade 13 is made of hard alloy material and is quenched. The bottom edge is ground into a blade shape to facilitate insertion into tobacco material. The upper part of the cutting sampling head 12 is inserted upward into the internal channel 15 of the mounting sleeve 11 and is detachably connected to the mounting sleeve 11. A limiting groove 16 is formed on the outer circumference of the upper part of the cutting sampling head 12. The mounting sleeve 11 has a limiting screw hole at the corresponding part of the limiting groove 16. The limiting handle 17 is screwed into the limiting screw hole and embedded in the limiting groove 16 of the cutting sampling head 12, so as to achieve the locking installation of the cutting sampling head 12 and the mounting sleeve 11. The cutting sampling head 12 has a vertically extending central hole. A top rod 18 is slidably installed in the central hole of the cutting sampling head 12. The bottom end of the top rod 18 extends downward below the cutting sampling head 12 and is connected to a top plate 19. The top plate 19 is located within the sampling space 14 and can move vertically within the sampling space 14. The top end of the top rod 18 extends upward above the cutting sampling head 12 and is connected to an operating rod 20. A vertically extending operating groove 21 is opened on one side of the mounting sleeve 11. The operating rod 20 extends out of the mounting sleeve 11 from the operating groove 21. Moving the operating rod 20 up and down... The base 6 can move vertically within the operating slot 21, thereby moving the top rod 18 and the top plate 19 together. The base 6 has a positioning slot 22 for placing the sampling box 31. The sampling box 31 is placed in the positioning slot 22 and located below the cutting sampling head 12. The sampling box 31 can be made of lightweight aluminum sheet with a thickness of 0.5mm, and its shape can be designed as a rectangular box. Its size can be designed according to specific needs. A hard rubber sheet can be attached to the bottom wall of the aluminum box to protect it from damage by the cutting blade 13, and to facilitate the separation of the cut sample block from the sample to be cut. The positioning slot 22 of the base 6 is a strip-shaped slot extending in the front-to-back direction. The width of the positioning slot 22 matches the width of the sampling box 31, and the length of the positioning slot 22 is greater than the length of the sampling box 31. The sampling box 31 can slide back and forth within the positioning slot 22, facilitating multiple samplings at different positions on the sampling box 31.

[0025] The mounting plate 8 is equipped with a guide assembly for guiding the vertical movement of the piston rod 10 of the stamping cylinder 9. The guide assembly includes a guide rod 23, a guide sleeve 24, and a connecting plate 25. The guide sleeve 24 is fixedly mounted on the mounting plate 8. The guide rod 23 is slidably disposed in the guide hole of the guide sleeve 24 and can slide vertically along the guide hole. The guide rod 23 is arranged side by side with the piston rod 10 of the stamping cylinder 9. The connection between the guide rod 23 and the piston rod 10 of the stamping cylinder 9 is achieved through the connecting plate 25.

[0026] The top end of the mounting sleeve 11 is threadedly connected to the bottom end of the piston rod 10 of the stamping cylinder 9. The connecting plate 25 is fitted onto the piston rod 10 of the stamping cylinder 9. The bottom of the connecting plate 25 is pressed and limited by the top end of the mounting sleeve 11, and the top of the connecting plate 25 is pressed and limited by the limiting step set on the piston rod 10 of the stamping cylinder 9.

[0027] Mounting plate 8 and column 7 are slidably fitted together. A fixing plate 26 is provided at the top of column 7. The fixing plate 26 has an adjusting screw hole. The mounting plate 8 has a through hole. The adjusting screw 27 is threadedly fitted with the adjusting screw hole. The adjusting screw 27 passes through the adjusting screw hole and the through hole from top to bottom. The adjusting screw 27 has an upper limit nut 28 and a lower limit nut 29 screwed on the top and bottom surfaces of the mounting plate 8, respectively. By rotating the adjusting screw 27, the mounting plate 8 is driven to rise and fall, which in turn drives the stamping cylinder 9 and its piston rod 10 on the mounting plate 8, as well as the stamping sampling assembly, to rise and fall together, thereby driving the cutting sampling head 12 to rise and fall.

[0028] The working process of the online quantitative sampling device for high-temperature and high-humidity tobacco materials provided in this embodiment is as follows:

[0029] First, the sampling device is moved to the processing equipment where sampling is required. The operator holds the sampling box 31 below the outlet of the discharge trough of the processing equipment to collect the tobacco material, which falls naturally and fills the sampling box 31. Then, the sampling box 31 is placed in the positioning slot 22 of the base 6, with the sampling box 31 located below the cutting blade 13. The press cylinder 9 is activated, and the piston rod 10 of the press cylinder 9 moves downward, driving the cutting sampling head 12 downward as well. The cutting blade 13 of the cutting sampling head 12 is inserted downward into the tobacco material in the sampling box 31, thereby cutting and sampling the tobacco material in the sampling box 31. During this process, the top plate 19 is pushed upward by the tobacco material to the upper limit position. At this time, the tobacco block material located in the sampling space 14 inside the cutting blade 13 is the cut sample block. Then, the piston rod 10 of the press cylinder 9 moves upward, driving the cutting sampling head 12 upward as well. The cut sample block moves upward with the cutting blade 13, detaches from the sampling box 31, and after reaching the upper position, the operating lever 20 is moved downward. The operating lever 20 drives the top rod 18 and the top plate 19 to move downward together, thereby pushing the cut sample block in the sampling space 14 inside the cutting blade 13 downward and falling into the sample box prepared below for oven method testing. Then, the sample box containing the cut sample blocks is weighed promptly using the weighing mechanism 2, and the box number and sample weight are recorded to obtain accurate data on the sample weight before drying. The weighed sample box can be placed in the storage slot of the storage drawer 3 on the front side of the movable workpiece, to be transferred to the laboratory for oven drying to test the moisture content. At this point, the entire cutting, sampling, and timely weighing process for the cut sample blocks is complete. Afterwards, the sampling box 31 is moved in the positioning slot 22 of the base 6 to cut a second sample block from one sampling box 31.

[0030] The online quantitative sampling device provided in this embodiment truly realizes the rapid online collection of samples for moisture content testing of tobacco products, and enables timely weighing, avoiding the impact of moisture loss on the moisture content testing results and ensuring the accuracy of subsequent moisture content testing results.

[0031] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A high temperature, high humidity tobacco material on-line quantitative sampling device, characterized in that: The mobile workbench is provided with a stamping quantitative sampling mechanism (1) and a weighing mechanism (2), and the weighing mechanism (2) is arranged beside the stamping quantitative sampling mechanism (1); The stamping quantitative sampling mechanism (1) comprises a base (6), a mounting plate (8) is arranged on a stand (7) of the base (6), a stamping cylinder (9) is arranged on the mounting plate (8), a piston rod (10) of the stamping cylinder (9) extends vertically downward, and a stamping sampling assembly is detachably mounted on the bottom end of the piston rod (10), the stamping sampling assembly comprises a mounting sleeve (11) and a cutting sampling head (12), the mounting sleeve (11) is detachably mounted on the bottom end of the piston rod (10) of the stamping cylinder (9), the cutting sampling head (12) is provided with a cutting knife (13) in the form of a ring at the bottom, the internal space of the cutting knife (13) forms a sampling space (14), the upper part of the cutting sampling head (12) is embedded into an internal hole (15) of the mounting sleeve (11) and is detachably connected with the mounting sleeve (11), a vertical central hole is formed in the center of the cutting sampling head (12), a jacking rod (18) is slidably arranged in the central hole of the cutting sampling head (12), the bottom end of the jacking rod (18) extends downward below the cutting sampling head (12) and is connected with a top plate (19), the top plate (19) is located in the sampling space (14) and can move vertically in the sampling space (14), the top end of the jacking rod (18) extends upward above the cutting sampling head (12) and is connected with an operating rod (20), a vertical operating slot (21) is formed in one side of the mounting sleeve (11), the operating rod (20) extends out of the mounting sleeve (11) from the operating slot (21) of the mounting sleeve (11), the operating rod (20) can move vertically in the operating slot (21) by being pushed up and down, so as to drive the jacking rod (18) and the top plate (19) to move together, the base (6) is provided with a positioning and placing groove (22) for placing a sampling box (31), the sampling box (31) is placed in the positioning and placing groove (22) and below the cutting sampling head (12); The mounting plate (8) is provided with a guide assembly for guiding the vertical movement of the piston rod (10) of the stamping cylinder (9), the guide assembly comprises a guide rod (23), a guide sleeve (24) and a connecting plate (25), the guide sleeve (24) is fixedly mounted on the mounting plate (8), the guide rod (23) is slidably arranged in a guide hole of the guide sleeve (24) and can slide vertically along the guide hole, the guide rod (23) is arranged side by side with the piston rod (10) of the stamping cylinder (9), and the connection between the guide rod (23) and the piston rod (10) of the stamping cylinder (9) is realized through the connecting plate (25); The top end of the mounting sleeve (11) is threadedly connected with the bottom end of the piston rod (10) of the stamping cylinder (9), the connecting plate (25) is sleeved on the piston rod (10) of the stamping cylinder (9), the bottom of the connecting plate (25) is abuttingly limited by the top end of the mounting sleeve (11), and the top of the connecting plate (25) is abuttingly limited by a limiting step arranged on the piston rod (10) of the stamping cylinder (9). A limiting recess (16) is opened on the upper outer circumferential surface of the cutting sampling head (12), a limiting screw hole is opened on the part corresponding to the limiting recess (16) of the mounting sleeve (11), the limiting handle (17) is screwed into the limiting screw hole and embedded into the limiting recess (16) of the cutting sampling head (12), so that the locking mounting of the cutting sampling head (12) and the mounting sleeve (11) is realized; The mounting plate (8) is in sliding fit with the stand (7), the top end of the stand (7) is provided with a fixed plate (26), the fixed plate (26) is provided with an adjusting screw hole, the mounting plate (8) is provided with a through hole, the adjusting screw rod (27) is in threaded fit with the adjusting screw hole, the adjusting screw rod (27) passes through the adjusting screw hole and the through hole from top to bottom in sequence, the upper limiting nut (28) and the lower limiting nut (29) are respectively screwed on the adjusting screw rod (27) at the positions located on the top surface and the bottom surface of the mounting plate (8), the adjusting screw rod (27) is rotated, so that the mounting plate (8) is driven to ascend and descend.

2. A high temperature, high humidity tobacco material on-line quantitative sampling device according to claim 1, characterised in that: The positioning placing groove (22) of the base (6) is a strip-shaped groove extending along the front and back directions, the width of the positioning placing groove (22) is consistent with the width of the sampling box (31), the length of the positioning placing groove (22) is greater than the length of the sampling box (31), and the sampling box (31) can slide forward and backward in the positioning placing groove (22).

3. A high temperature, high humidity tobacco material on-line quantitative sampling device according to claim 1, characterized in that: The mobile workbench is provided with a plurality of mobile wheels (30) at the bottom.

4. A high temperature, high humidity tobacco material on-line quantitative sampling device according to claim 1, characterized in that: The mobile workbench comprises two independent mobile workbench frames (4), the stamping quantitative sampling mechanism (1) and the weighing mechanism (2) are respectively arranged on the two mobile workbench frames (4), and the two mobile workbench frames (4) are detachably connected through the connecting structure.

5. A high temperature, high humidity tobacco material on-line quantitative sampling device according to claim 1, characterized in that: The front side of the mobile workbench is provided with a plurality of layers of storage drawers (3), and a plurality of storage grooves are arranged in each layer of storage drawer (3). The mobile workbench comprises two independent mobile workbench frames (4), the stamping quantitative sampling mechanism (1) and the weighing mechanism (2) are respectively arranged on the two mobile workbench frames (4), and the two mobile workbench frames (4) are detachably connected through the connecting structure. The front side of the mobile workbench is provided with a plurality of layers of storage drawers (3), and a plurality of storage grooves are arranged in each layer of storage drawer (3).

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