A new type of curing barn with semi-automatic lifting function

Abstract

The utility model relates to the tobacco leaf baking technology field, specifically disclose a novel curing barn with semi -automatic lifting function, including middle stand, 2 are arranged in parallel in the middle stand, and the bottom of 2 middle stands is fixedly connected with same base, and the middle stand fixedly connected with 2 bottoms constitutes a middle support unit, and the both sides symmetrical setting of middle support unit has side stand. This novel curing barn with semi -automatic lifting function, the device in setting center support structure and the side support structure of both sides symmetrical setting realize the vertical motion direction of middle support plate and side support plate, and the guide block slidingly covers the outside surface of middle stand in the front and back surfaces of middle support plate, and the guide block slidingly covers the outside surface of side stand in the front surface of side support plate, thereby the sliding of middle support plate and side support plate in the vertical direction is oriented, avoids the deviation and the shaking in the lifting process, thereby protects the tobacco and will not take place the drop, and more stably carries out the baking.

Description

Technical Field

[0001] This utility model relates to the field of tobacco curing technology, specifically a new type of curing barn with semi-automatic lifting function. Background Technology

[0002] Tobacco curing is a core link in tobacco production that connects field harvesting with industrial processing. It refers to the process of artificially controlling environmental conditions such as temperature, humidity, and ventilation in the curing barn to process freshly harvested tobacco leaves over several days. This process allows the tobacco leaves to gradually develop quality characteristics that meet industrial requirements through the synergistic effects of physiological metabolism and physicochemical changes. Curing tobacco leaves requires the use of a curing barn.

[0003] Traditional baking oven height adjustment relies on manual labor, which is inefficient and unsafe. Furthermore, the material support structure of traditional baking ovens is mostly a fixed shelf design, which requires manual rotation of screws and pulling of ropes to achieve height adjustment. Although some traditional baking ovens are equipped with layered support components, they rely solely on ropes for lifting and lowering. During the lifting and lowering process, uneven force can easily cause swaying and deviation, which can obstruct the circulation of hot air in the baking oven and result in local over- or under-baking, affecting the overall quality of the product. Utility Model Content

[0004] The purpose of this utility model is to provide a new type of tobacco curing barn with semi-automatic lifting function. The device is equipped with a middle support plate and side support plates to realize the layered support and stable lifting of tobacco leaves, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel drying oven with semi-automatic lifting function, comprising a central column, two of which are arranged in parallel, the bottoms of which are fixedly connected to the same base, forming a central support unit. Side columns are symmetrically arranged on both sides of the central support unit. The two side columns and the central support unit are fixedly installed on the lower surface of the same fixed crossbar. The fixed crossbar, together with the two side columns and the central support unit fixed to the lower surface, constitutes a frame unit structure. Four frame units are arranged in parallel. A support frame is fixedly installed on the upper surface of each fixed crossbar. A rotating shaft is provided through the surface of the support frame, and the rotating shaft is rotatably connected to the support frame. One end of the rotating shaft is connected to the output end of a motor via a set of bevel gears to form a power transmission structure. The motor is fixedly installed on the surface of a mounting frame, which is a hollow square frame structure, and is fixedly installed on the upper surface of the fixed crossbar.

[0006] Preferably, a central support structure is provided at the central support unit, and the central support structure realizes the stable movement of the central lifting component through the central support plate and guide block.

[0007] By adopting the above technical solution, the central support structure can achieve stable lifting and lowering of the central support plate.

[0008] Preferably, the central support structure includes a central support plate, which is a rectangular plate structure. The central support plate is located between two central columns in the central support unit. Guide blocks are fixedly installed on the front and rear surfaces of the central support plate. The guide blocks are hollow square frame structures and are slidably sleeved on the outer surfaces of the central columns on both sides. Three central support plates are arranged parallel to each other vertically, and two adjacent central support plates are fixedly connected by a connecting chain.

[0009] Using the above technical solution, the movement of the centering support plate can be guided by the guide block.

[0010] Preferably, a turntable is provided above the uppermost middle support plate. The turntable is fixedly installed on the outer surface of the rotating shaft. The outer surface of the turntable is fixedly connected to one end of a drive rope, and the other end of the drive rope is fixedly installed on the upper surface of the uppermost middle support plate.

[0011] Using the above technical solution, the movement of the middle support plate can be driven by the No. 1 turntable and the No. 1 drive rope.

[0012] Preferably, a side support structure is provided at the side column, and the side support structure realizes the stable movement of the side lifting component through the side support plate and guide block.

[0013] By adopting the above technical solution, the side support structure can achieve stable lifting and lowering of the side support plate.

[0014] Preferably, the side support structure includes a side support plate, a guide block is fixedly installed on the front surface of the side support plate, the guide block is slidably sleeved on the outer surface of the side column, three side support plates are arranged parallel to each other above and below, two adjacent side support plates are fixedly connected by a connecting chain, the uppermost side support plate is fixedly connected to one end of the second drive rope, the other end of the second drive rope is fixedly connected to the surface of the second turntable, and the second turntable is fixedly installed on the outer surface of the rotating shaft.

[0015] Using the above technical solution, the side support plate can be stably raised and lowered through the guide block.

[0016] Preferably, a tobacco leaf support structure is provided between the central support structure and the side support structure. The tobacco leaf support structure includes positioning blocks, which are square blocks. A cylindrical limiting rod is fixedly installed on the lower surface of the positioning block. Two positioning blocks are symmetrically arranged, and a supporting rod is fixedly installed between the two positioning blocks. The two supporting rods form a hollow square structure between the positioning blocks. The limiting rods on the lower surface of the positioning blocks on both sides are respectively engaged and connected with the circular through holes provided on the surface of the central support plate and the side support plate.

[0017] Using the above technical solution, the tobacco leaf support structure can support the tobacco leaves to be cured.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the new type of drying oven with semi-automatic lifting function: 1. This device is equipped with a central support structure and symmetrically arranged side support structures on both sides to guide the vertical movement of the central support plate and the side support plates. The guide blocks on the front and rear surfaces of the central support plate are slidably sleeved on the outer surface of the central column, and the guide blocks on the front surface of the side support plate are slidably sleeved on the outer surface of the side column. This guides the vertical sliding of the central support plate and the side support plate, preventing deviation and shaking during the lifting and lowering process, thus protecting the tobacco leaves from falling off and allowing for more stable curing. 2. Both the central support structure and the side support structure of this device adopt a layered design with three support plates arranged in parallel vertically. Adjacent support plates are fixedly connected by connecting chains, which not only ensures the stability of the layered structure, but also allows for flexible allocation of support space for each layer according to the quantity and thickness of the material to be baked. The lifting power of the central support structure and the side support structure is driven by a motor to drive the bevel gear to rotate the shaft. Then, the first and second turntables on the shaft drive the first and second drive ropes respectively to pull the central support structure and the side support structure, realizing semi-automatic lifting and improving lifting efficiency. 3. This device uses support rods fixedly installed between positioning blocks to form a hollow structure to support the tobacco leaves. At the same time, the limiting rods on the lower surface of the positioning blocks engage with the circular through holes on the surfaces of the middle support plate and the side support plate, allowing for quick assembly or disassembly. This facilitates the loading, unloading, and replacement of tobacco leaves. The positioning blocks and limiting rods prevent the tobacco leaves from shifting during the lifting process, while the hollow structure formed by the support rods prevents the tobacco leaves from piling up, allowing hot air to circulate evenly in the curing barn and increasing the efficiency of tobacco curing. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a schematic diagram of the rear view structure of this utility model; Figure 3 This is a schematic diagram of the column and fixed crossbar structure in this utility model; Figure 4 This is a schematic diagram of the support plate structure in this utility model; Figure 5 This is a schematic diagram of the side support plate structure of this utility model; Figure 6 This is a schematic diagram of the support rod structure of this utility model.

[0020] In the diagram: 1. Central column; 2. Side column; 3. Fixed crossbar; 4. Support frame; 5. Rotating shaft; 6. Motor; 7. Mounting frame; 8. Central support plate; 9. Guide block; 10. Connecting chain; 11. Turntable No. 1; 12. Drive rope No. 1; 13. Side support plate; 14. Turntable No. 2; 15. Drive rope No. 2; 16. Positioning block; 17. Support rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-6 This utility model provides a technical solution: a new type of drying room with semi-automatic lifting function, including a central column 1, side columns 2, fixed crossbars 3, support frame 4, rotating shaft 5, motor 6, mounting frame 7, central support plate 8, guide block 9, connecting chain 10, first turntable 11, first drive rope 12, side support plate 13, second turntable 14, second drive rope 15, positioning block 16, and support rod 17.

[0023] Two central columns 1 are arranged in parallel. The bottom of the two central columns 1 is fixedly connected to the same base. The two central columns 1 with their bottoms fixedly connected form a central support unit. Side columns 2 are symmetrically arranged on both sides of the central support unit. The two side columns 2 and the central support unit are fixedly installed on the lower surface of the same fixed crossbar 3. The fixed crossbar 3, together with the two side columns 2 and the central support unit fixed on the lower surface, together form a frame unit structure. Four frame unit structures are arranged in parallel. A support frame 4 is fixedly installed on the upper surface of each fixed crossbar 3. A rotating shaft 5 is provided through the surface of the support frame 4. The rotating shaft 5 is rotatably connected to the support frame 4. One end of the rotating shaft 5 is connected to the output end of the motor 6 through a set of bevel gears to form a power transmission structure. The motor 6 is fixedly installed on the surface of the mounting frame 7. The mounting frame 7 is a hollow square frame structure. The mounting frame 7 is fixedly installed on the upper surface of the fixed crossbar 3. like Figure 1 and Figure 2As shown, when using this device to cure tobacco leaves, the frame is first constructed. The bottoms of two central columns 1 are fixed to the same base to form a central support unit. Side columns 2 are symmetrically arranged on both sides of the central support unit, and the two side columns 2 and the central support unit are fixed together to the lower surface of the fixed crossbar 3 to form a set of frame unit structures. Four sets of frame units are built in parallel according to this standard to ensure that the spacing between each set of frame units is uniform. The frame unit structure is built inside the curing barn to form the main support frame. A support frame 4 is welded to the upper surface of each fixed crossbar 3. The rotating shaft 5 passes through the support frame 4 and is rotatably connected through a bearing. The motor 6 is fixed to the surface of the hollow square structure mounting frame 7. The mounting frame 7 is then welded to the upper surface of the fixed crossbar 3. Finally, a set of bevel gears connects one end of the rotating shaft 5 to the output end of the motor 6 to ensure stable power transmission.

[0024] A central support structure is provided at the central support unit. The central support structure realizes the stable movement of the central lifting component through the central support plate 8 and guide block 9. The central support structure includes the central support plate 8, which is a rectangular plate structure. The central support plate 8 is located between the two central columns 1 in the central support unit. Guide blocks 9 are fixedly installed on the front and rear surfaces of the central support plate 8, respectively. The guide blocks 9 are hollow square frame structures. The guide blocks 9 are slidably sleeved on the outer surface of the central columns 1 on both sides. There are three central support plates 8 arranged in parallel vertically. Two adjacent central support plates 8 are fixedly connected by a connecting chain 10. A turntable 11 is provided above the uppermost central support plate 8. The turntable 11 is fixedly installed on the outer surface of the rotating shaft 5. The outer surface of the turntable 11 is fixedly connected to one end of the first drive rope 12. The other end of the first drive rope 12 is fixedly installed on the upper surface of the uppermost central support plate 8. like Figure 1 , Figure 3 and Figure 4 As shown, when using this device for tobacco curing, the height of the central support structure is adjusted, the motor 6 is started, and the output end of the motor 6 drives the rotating shaft 5 to rotate on the support frame 4 through the bevel gear. The rotating shaft 5 drives the first turntable 11 on the surface to rotate, and the rotating first turntable 11 drives the first drive rope 12 on the surface to wind and tighten. The first drive rope 12 pulls the uppermost middle support plate 8 to move upward. Since the adjacent support plates are connected by the connecting chain 10, the two lower middle support plates 8 move upward as well. At the same time, the guide block 9 of the middle support plate 8 slides along the central column 1 to ensure that the support plate 8 will not shift during the lifting process, which facilitates the feeding and unloading of tobacco leaves on the surface of the lowermost middle support plate 8.

[0025] A side support structure is provided at the side column 2. The side support structure realizes the stable movement of the side lifting component through the side support plate 13 and the guide block 9. The side support structure includes the side support plate 13. The guide block 9 is fixedly installed on the front surface of the side support plate 13. The guide block 9 is slidably sleeved on the outer surface of the side column 2. There are 3 side support plates 13 arranged in parallel vertically. The two adjacent side support plates 13 are fixedly connected by the connecting chain 10. The upper surface of the uppermost side support plate 13 is fixedly connected to one end of the second drive rope 15. The other end of the second drive rope 15 is fixedly connected to the surface of the second turntable 14. The second turntable 14 is fixedly installed on the outer surface of the rotating shaft 5. like Figure 1 and Figure 5 As shown, if it is necessary to raise the side support structure, the motor 6 is started. The output end of the motor 6 drives the rotating shaft 5 to rotate on the support frame 4 through the bevel gear. The rotating shaft 5 drives the second turntable 14 on the surface to rotate. The second turntable 14 drives the second drive rope 15 on the surface to tighten and wind. The second drive rope 15 pulls the uppermost side support plate 13 to move upward. The two lower side support plates 13 move upward accordingly. The guide block 9 of the side support plate 13 slides upward along the side column 2 to ensure the stability of the sliding of the side support plate 13.

[0026] A tobacco leaf support structure is provided between the central support structure and the side support structure. The tobacco leaf support structure includes a positioning block 16, which is a square block structure. A cylindrical limiting rod is fixedly installed on the lower surface of the positioning block 16. Two positioning blocks 16 are symmetrically arranged. A support rod 17 is fixedly installed between the two positioning blocks 16. The two support rods 17 form a hollow square structure between the positioning blocks 16. The limiting rods on the lower surface of the positioning blocks 16 on both sides are respectively engaged and connected with the circular through holes provided on the surface of the central support plate 8 and the side support plate 13. like Figure 1 and Figure 6 As shown, during the curing of tobacco leaves, the fresh tobacco leaves to be cured are evenly spread on the surface of the support rod 17. The support rod 17 forms a hollow square frame on the surface of the positioning block 16, thereby ensuring that the tobacco leaves do not pile up and avoid falling off or blocking the flow of hot air during the curing process. Depending on the number of tobacco leaves, tobacco leaves can be loaded on the support frames corresponding to the three-layer middle support plate 8 and the three-layer side support plate 13, flexibly allocating the support space for each layer. The cylindrical limiting rods on the lower surface of the two square positioning blocks 16 are engaged with the circular through holes on the surface of the middle support plate 8 and the side support plate 13, respectively, to complete the assembly of the tobacco leaf support structure, thereby ensuring that the tobacco leaves will not shift during the curing process. After the height of the support structure is adjusted, the temperature and humidity control system of the curing barn is started, and hot air circulates in the curing barn. Since the tobacco leaf support frame is a hollow structure, the hot air can evenly contact each layer of tobacco leaves, avoiding the problem of local over- or under-curing in the traditional fixed-layer rack design.

[0027] Working principle: When using this new type of curing barn with semi-automatic lifting function, start motor 6. Motor 6 drives shaft 5 to rotate. The rotating shaft 5 synchronously drives turntable 11 and turntable 14 to rotate, so that drive rope 12 and drive rope 15 respectively pull the central support structure and the side support structure to rise and fall. The guide blocks 9 in front and behind the central support plate 8 in the central support structure slide along the central column 1. The guide blocks 9 in the side support plate 13 in the side support structure slide along the side column 2 to avoid deviation and shaking during the lifting process. Adjacent support plates are linked by connecting chain 10 to realize the synchronous lifting and falling of the three support plates. The positioning block 16 of the tobacco leaf support structure is engaged with the central support plate 8 and the side support plate 13 through the limiting rod. Fresh tobacco leaves are laid on the surface of the support rod 17. With the help of the curing barn temperature and humidity system, the tobacco leaves are cured evenly, which increases the overall practicality.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel drying oven with semi-automatic lifting function, comprising a central column (1), wherein two central columns (1) are arranged in parallel, the bottoms of the two central columns (1) are fixedly connected to the same base, and the two central columns (1) with their bottoms fixedly connected constitute a central support unit, characterized in that: The two sides of the central support unit are symmetrically arranged with side columns (2). The two side columns (2) and the central support unit are fixedly installed on the lower surface of the same fixed crossbar (3). The fixed crossbar (3), together with the two side columns (2) fixed on the lower surface and the central support unit, constitute a frame unit structure. There are four frame unit structures arranged in parallel. Each fixed crossbar (3) has a support frame (4) fixedly installed on its upper surface. A rotating shaft (5) is provided through the surface of the support frame (4). The rotating shaft (5) is rotatably connected to the support frame (4). One end of the rotating shaft (5) is connected to the output end of the motor (6) through a set of bevel gears to form a power transmission structure. The motor (6) is fixedly installed on the surface of the mounting frame (7). The mounting frame (7) is a hollow square frame structure. The mounting frame (7) is fixedly installed on the upper surface of the fixed crossbar (3).

2. The novel drying oven with semi-automatic lifting function according to claim 1, characterized in that: A central support structure is provided at the central support unit. The central support structure realizes the stable movement of the central lifting component through the central support plate (8) and the guide block (9).

3. A novel drying oven with semi-automatic lifting function according to claim 2, characterized in that: The central support structure includes a central support plate (8), which is a rectangular plate structure. The central support plate (8) is located between two central columns (1) in the central support unit. Guide blocks (9) are fixedly installed on the front and rear surfaces of the central support plate (8). The guide blocks (9) are hollow square frame structures. The guide blocks (9) are slidably sleeved on the outer surfaces of the central columns (1) on both sides. There are three central support plates (8) arranged in parallel vertically. Two adjacent central support plates (8) are fixedly connected by a connecting chain (10).

4. A novel drying oven with semi-automatic lifting function according to claim 3, characterized in that: A turntable (11) is provided above the uppermost middle support plate (8). The turntable (11) is fixedly installed on the outer surface of the rotating shaft (5). The outer surface of the turntable (11) is fixedly connected to one end of the first drive rope (12). The other end of the first drive rope (12) is fixedly installed on the upper surface of the uppermost middle support plate (8).

5. A novel drying oven with semi-automatic lifting function according to claim 1, characterized in that: A side support structure is provided at the side column (2), and the side support structure realizes the stable movement process of the side lifting component through the side support plate (13) and the guide block (9).

6. A novel drying oven with semi-automatic lifting function according to claim 5, characterized in that: The side support structure includes a side support plate (13). A guide block (9) is fixedly installed on the front surface of the side support plate (13). The guide block (9) is slidably sleeved on the outer surface of the side column (2). There are three side support plates (13) arranged in parallel vertically. Two adjacent side support plates (13) are fixedly connected by a connecting chain (10). The upper surface of the uppermost side support plate (13) is fixedly connected to one end of the second drive rope (15). The other end of the second drive rope (15) is fixedly connected to the surface of the second turntable (14). The second turntable (14) is fixedly installed on the outer surface of the rotating shaft (5).

7. A novel drying oven with semi-automatic lifting function according to claim 2, characterized in that: A tobacco leaf support structure is provided between the central support structure and the side support structure. The tobacco leaf support structure includes a positioning block (16). The positioning block (16) is a square block structure. A cylindrical limiting rod is fixedly installed on the lower surface of the positioning block (16). Two positioning blocks (16) are symmetrically arranged. A support rod (17) is fixedly installed between the two positioning blocks (16). The two support rods (17) form a hollow square structure between the positioning blocks (16). The limiting rods on the lower surface of the positioning blocks (16) on both sides are respectively engaged and connected with the circular through holes provided on the surface of the central support plate (8) and the side support plate (13).

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