Tobacco leaf accurate weighing device for tobacco curing barn

Abstract

The utility model belongs to the technical field of tobacco curing, and discloses a tobacco curing barn tobacco leaf accurate weighing device which comprises a tobacco hanging rod, the two ends of the tobacco hanging rod are detachably and fixedly connected with bearing plates, the two sides of the two bearing plates are provided with bearing seats, the opposite sides of the two bearing seats are provided with containing grooves, and the containing grooves are arranged in the containing grooves. The two bearing plates extend into the two containing grooves correspondingly, fixing blocks are fixedly connected to the inner bottom walls of the containing grooves, and weighing sensors are installed at the positions, corresponding to the bearing plates, of the tops of the fixing blocks. According to the scheme, the tobacco hanging rod is supported through the bearing plate, the bearing plate is supported and adjusted in a lifting mode through the supporting block and the lifting driving mechanism, and the bearing plate is moved away from the weighing sensor when weighing is not conducted, so that the weighing sensor is prevented from being pressed for a long time, the weighing sensor is effectively protected, and the service life of the weighing sensor is prolonged; therefore, the reading of the weighing sensor is more stable and accurate, the tobacco leaf weighing precision is improved, and the data observation in the baking process is ensured to be accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco baking, and more specifically, to a precise weighing device for tobacco leaves in a tobacco baking house. Background Art

[0002] During the tobacco baking process, the baking process should be adjusted in a timely manner according to the yellowing speed and water loss speed of the tobacco leaves to bake out tobacco leaves with better quality. The moisture inside the baking house mainly comes from the tobacco leaves, and the change of the moisture inside the tobacco is closely related to the change of the color of the tobacco leaves. Therefore, measuring the change of the moisture of the tobacco leaves inside the baking house, that is, the change of the weight of the tobacco leaves, plays an important role in regulating the tobacco baking process.

[0003] In traditional tobacco baking houses, the weighing of tobacco leaves is usually achieved by directly placing a supporting bracket on a weighing sensor. Although this method is simple and direct, it has some significant disadvantages. First, the weight of the supporting bracket and the tobacco leaves presses on the weighing sensor for a long time, which will cause the weighing sensor to be under continuous pressure, thereby affecting its accuracy and service life. Second, due to the long-term pressure on the weighing sensor, its reading may deviate, which will directly affect the weighing accuracy of the tobacco leaves and the data observation during the baking process. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages existing in the prior art, and to propose a precise weighing device for tobacco leaves in a tobacco baking house.

[0005] To solve the above problems in the background art, the utility model adopts the following technical solutions:

[0006] A precise weighing device for tobacco leaves in a tobacco baking house, including a tobacco hanging rod, both ends of the tobacco hanging rod are detachably and fixedly connected with supporting plates, both sides of the two supporting plates are provided with supporting seats, opposite sides of the two supporting seats are both provided with accommodating grooves, the two supporting plates respectively extend into the two accommodating grooves, a fixing block is fixedly connected to the inner bottom wall of the accommodating groove, and a weighing sensor is installed on the top of the fixing block corresponding to the supporting plate.

[0007] A supporting block is arranged inside the accommodating groove and on the inner side of the fixing block, the supporting block is located at the bottom of the supporting plate, and a lifting driving mechanism for driving the supporting block to lift is arranged inside the accommodating groove.

[0008] As a further description of the above technical solution: the lifting driving mechanism includes two threaded rods, the two threaded rods are respectively located in front of and behind the supporting plate and are respectively threadedly connected with the supporting block, the top and bottom ends of the two threaded rods are respectively rotatably connected with the inner wall of the accommodating groove, a servo motor is fixedly installed on the top of the supporting seat, an output shaft of the servo motor is fixedly connected with one of the threaded rods, and a transmission component for driving the two threaded rods to rotate simultaneously is arranged inside the accommodating groove.

[0009] As a further description of the above technical solution: a support angle iron seat is fixedly installed at the bottom of the support seat, and installation through holes are respectively opened on the lower sides inside the support angle iron seats.

[0010] As a further description of the above technical solution: a limiting groove is opened on the inner side wall of the accommodating groove, a limiting block is fixedly connected to the support plate, and the limiting block is slidably connected to the limiting groove.

[0011] As a further description of the above technical solution: the transmission assembly includes two belt pulleys, the two belt pulleys are respectively fixedly connected to the two threaded rods, a transmission belt is sleeved on the two belt pulleys, and the two belt pulleys are driven by the transmission belt.

[0012] As a further description of the above technical solution: a positioning groove adapted to the hanging tobacco rod is opened on the support plate, a bolt is fixedly installed at the bottom of the hanging tobacco rod, and the bottom end of the bolt extends below the support plate and is threadedly connected with a locking nut.

[0013] Compared with the prior art, the advantages of the present utility model are as follows:

[0014] In this solution, the hanging tobacco rod is supported by the support plate, and the support plate can be supported and adjusted in a liftable manner by the support block and the lifting drive mechanism. When not weighing, the support plate is moved away from the weighing sensor, thereby avoiding long-term pressure on the weighing sensor, effectively protecting the weighing sensor, extending its service life, making the reading of the weighing sensor more stable and accurate, improving the accuracy of tobacco leaf weighing, and ensuring accurate data observation during the baking process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic internal structural diagram of the support seat of the present utility model;

[0017] Figure 3 is a schematic structural diagram of the connection between the lifting drive mechanism and the support block of the present utility model.

[0018] Explanation of the reference numerals in the drawings:

[0019] 1. Hanging tobacco rod; 2. Support plate; 3. Support seat; 4. Accommodating groove; 5. Fixed block; 6. Weighing sensor; 7. Support block; 8. Lifting drive mechanism; 81. Threaded rod; 82. Servo motor; 83. Transmission assembly; 831. Belt pulley; 832. Transmission belt; 9. Support angle iron seat; 10. Limiting groove; 11. Limiting block; 12. Positioning groove; 13. Bolt; 14. Locking nut. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-3 , a precise weighing device for tobacco leaves in a tobacco curing barn, which includes a tobacco hanging rod 1. Both ends of the tobacco hanging rod 1 are detachably and fixedly connected with a supporting plate 2, which facilitates the disassembly of the tobacco hanging rod 1 from the supporting plate 2. Support seats 3 are arranged on both sides of the two supporting plates 2. Accommodating grooves 4 are opened on the opposite sides of the two support seats 3. The two supporting plates 2 respectively extend into the two accommodating grooves 4. A fixing block 5 is fixedly connected to the inner bottom wall of the accommodating groove 4. A weighing sensor 6 is installed on the top of the fixing block 5 corresponding to the supporting plate 2; a supporting block 7 is arranged inside the accommodating groove 4 and on the inner side of the fixing block 5. The supporting block 7 is located at the bottom of the supporting plate 2. An elevating drive mechanism 8 for driving the supporting block 7 to lift is arranged in the accommodating groove 4.

[0022] In this embodiment, by installing the tobacco hanging rod 1 on the supporting plate 2, when weighing is required, the elevating drive mechanism 8 drives the supporting block 7 to descend, so that the supporting plate 2 descends under the action of its own gravity and the weight of the tobacco hanging rod 1 and the tobacco thereon and contacts the weighing sensor 6. Weighing is carried out through the weighing sensor 6. When weighing is completed, the supporting plate 2 is lifted by the action of the elevating drive mechanism 8 and the supporting block 7 and separated from the weighing sensor 6. Such a design makes the supporting plate 2 only contact the weighing sensor 6 when weighing is required, which reduces the error caused by the sensor being under long-term pressure and improves the weighing accuracy.

[0023] As Figure 2 , 3 shown, the elevating drive mechanism 8 includes two threaded rods 81. The two threaded rods 81 are respectively located in front of and behind the supporting plate 2 and are respectively threadedly connected with the supporting block 7. The top and bottom ends of the two threaded rods 81 are respectively rotatably connected to the inner wall of the accommodating groove 4. A servo motor 82 is fixedly installed on the top of the support seat 3. The output shaft of the servo motor 82 is fixedly connected to one of the threaded rods 81. A transmission assembly 83 for driving the two threaded rods 81 to rotate simultaneously is arranged in the accommodating groove 4. The transmission assembly 83 includes two belt pulleys 831. The two belt pulleys 831 are respectively fixedly connected to the two threaded rods 81. A transmission belt 832 is sleeved on the two belt pulleys 831. The two belt pulleys 831 are driven by the transmission belt 832.

[0024] The lifting drive mechanism 8 drives the threaded rod 81 connected thereto to rotate through the servo motor 82, and through the transmission of the pulley 831 and the transmission belt 832, the other threaded rod 81 also rotates synchronously, thereby realizing the lifting movement of the support block 7.

[0025] In addition, a support angle iron seat 9 is fixedly installed at the bottom of the support seat 3, and installation through holes are respectively formed in the lower sides of the support angle iron seat 9. A limiting groove 10 is formed in the inner side wall of the accommodating groove 4, and a limiting block 11 is fixedly connected to the support plate 2. The limiting block 11 is slidably connected to the limiting groove 10. Such a design limits the moving range of the support plate 2 and prevents it from shifting during the lifting process.

[0026] Furthermore, a positioning groove 12 adapted to the cigarette hanging rod 1 is formed in the support plate 2. A bolt 13 is fixedly installed at the bottom of the cigarette hanging rod 1, and the bottom end of the bolt 13 extends below the support plate 2 and is threadedly connected with a locking nut 14. Such a design ensures the firm connection between the cigarette hanging rod 1 and the support plate 2, facilitating installation and disassembly.

[0027] The above is only a preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and its improvement concept of the present invention, makes equivalent substitutions or changes, and all should be covered by the protection scope of the present invention.

Claims

1. A tobacco leaf precision weighing device for a tobacco curing house, comprising a tobacco hanging rod (1), characterized in that: The two ends of the cigarette hanging rod (1) are detachably fixedly connected with supporting plates (2), and supporting seats (3) are arranged on both sides of the two supporting plates (2). Receiving grooves (4) are opened on the opposite sides of the two supporting seats (3). The two supporting plates (2) extend into the two receiving grooves (4) respectively, and a fixing block (5) is fixedly connected to the inner bottom wall of the receiving groove (4). A weighing sensor (6) is installed on the top of the fixing block (5) corresponding to the supporting plate (2); A support block (7) is arranged in the receiving groove (4) and located on the inner side of the fixing block (5); the support block (7) is located at the bottom of the supporting plate (2); and a lifting drive mechanism (8) for driving the support block (7) to rise and fall is arranged in the receiving groove (4).

2. The device for accurately weighing tobacco leaves in a tobacco curing house according to claim 1, characterized in that: The lifting drive mechanism (8) comprises two threaded rods (81), the two threaded rods (81) are respectively located at the front and rear of the supporting plate (2) and are respectively threadedly connected to the support block (7), the top and bottom ends of the two threaded rods (81) are respectively rotatably connected to the inner wall of the accommodating groove (4), a servo motor (82) is fixedly installed on the top of the supporting seat (3), the output shaft of the servo motor (82) is fixedly connected to one of the threaded rods (81), and a transmission assembly (83) for driving the two threaded rods (81) to rotate simultaneously is arranged in the accommodating groove (4).

3. The device for accurately weighing tobacco leaves in a tobacco curing house according to claim 1, characterized in that: A supporting angle iron seat (9) is fixedly mounted on the bottom of the supporting seat (3), and mounting through holes are provided on the lower inner side of the supporting angle iron seat (9).

4. The device for accurately weighing tobacco leaves in a tobacco curing house according to claim 1, characterized in that: A limiting groove (10) is provided on the inner side wall of the accommodating groove (4), a limiting block (11) is fixedly connected to the supporting plate (2), and the limiting block (11) is slidably connected to the limiting groove (10).

5. The device for accurately weighing tobacco leaves in a tobacco curing house according to claim 2, characterized in that: The transmission assembly (83) comprises two pulleys (831), the two pulleys (831) are fixedly connected to the two threaded rods (81) respectively, a transmission belt (832) is sleeved on the two pulleys (831), and the two pulleys (831) are driven by the transmission belt (832).

6. The device for accurately weighing tobacco leaves in a tobacco curing house according to claim 1, characterized in that: The support plate (2) is provided with a positioning groove (12) adapted to the cigarette hanging rod (1), and a bolt (13) is fixedly installed at the bottom of the cigarette hanging rod (1), and the bottom end of the bolt (13) extends to the bottom of the support plate (2) and is threadedly connected with a locking nut (14).

Images