Chain transmission type flue-cured tobacco loading and unloading machine

Abstract

The utility model discloses a chain transmission type flue-cured tobacco loading and unloading machine which comprises a moving trolley, a lifting table is installed above the moving trolley, a supporting frame is fixedly installed at the rear end of the lifting table, a connecting cross rod is connected to the inner side of the upper end of the supporting frame in a sliding mode, and a conveying frame is rotationally connected to the middle of the connecting cross rod. A transmission chain is movably installed on the outer side of the transmission frame, a plurality of transmission bases are fixedly installed on the outer side of the transmission chain, positioning grooves are formed in the two sides of each transmission base, a tobacco leaf clamping strip is installed between every two adjacent transmission bases, and two supporting bases are fixedly installed in the middle of the transmission frame. And a second protective cover is fixedly mounted at the front end of the transmission frame. The tobacco leaf conveying device has the advantages that by automatically lifting personnel and stably conveying tobacco leaves, the personnel can conveniently hang the tobacco leaves at different heights, the baking efficiency is improved, the tobacco leaves can be conveniently and rapidly loaded and unloaded, and the tobacco leaf conveying device is convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of tobacco curing, and in particular to a chain-driven tobacco curing loading and unloading machine. Background Technology

[0002] In the production and processing of tobacco leaves, a curing process is required. The main purpose of curing is to evaporate the moisture in the tobacco leaves, thereby achieving the effects of sterilization, mold prevention, control of enzyme activity, and alteration of the physical and chemical properties of the tobacco leaves. Through curing, the moisture content of the tobacco leaves can be reduced to a suitable level, giving them better processability and shelf life. During the curing process, some undesirable components in the tobacco leaves are decomposed and transformed into substances that improve quality.

[0003] However, in the existing technology, when using a curing barn to cure tobacco leaves, the tobacco leaves need to be suspended and swung, and placed by manually stepping on ladders, which makes the placement of tobacco leaves inefficient and does not make it easy to ensure the safety of the workers. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a chain-driven tobacco loading and unloading machine. The technical solution of this utility model is as follows:

[0005] A chain-driven tobacco loading and unloading machine includes a mobile trolley, a lifting platform mounted on top of the trolley, a support frame fixedly mounted at the rear end of the lifting platform, a connecting crossbar slidably connected to the inner side of the upper end of the support frame, a transmission frame rotatably connected to the middle of the connecting crossbar, a transmission chain movably mounted on the outer side of the transmission frame, multiple transmission seats fixedly mounted on the outer side of the transmission chain, positioning grooves on both sides of each transmission seat, a tobacco leaf clamping strip installed between each pair of adjacent transmission seats, two support seats fixedly mounted in the middle of the transmission frame, a second protective cover fixedly mounted at the front end of the transmission frame, two pressure switches installed on the inner side of the bottom end of the second protective cover, a first protective cover fixedly mounted on the outer side of the rear end of the transmission frame, a pulley frame mounted on the outer side of the first protective cover, and a first drive motor fixedly mounted at the upper end of the pulley frame.

[0006] Preferably, the four corners of the mobile trolley are rotatably connected to wheels, two scissor frames are installed between the mobile trolley and the lifting platform, a hydraulic cylinder is installed between the mobile trolley and one of the scissor frames, the two scissor frames are rotatably connected to each other by pins, the two scissor frames are rotatably connected to the mobile trolley and the lifting platform by pins, the bottom end of the hydraulic cylinder is rotatably connected to the mobile trolley, and the output end of the hydraulic cylinder is rotatably connected to one of the scissor frames.

[0007] Preferably, a transmission screw is rotatably connected to the inner side of one end of the support frame, and a second transmission motor is fixedly installed at the upper end of the support frame. The output end of the second transmission motor passes through the support frame and is connected to the transmission screw through a coupling. The transmission screw is threadedly connected to the connecting crossbar.

[0008] Preferably, the second protective cover is fixedly connected to two pressure switches, and a pressure sensor is provided on the inner side of each pressure switch. The contact of the pressure sensor extends from the inner side of the pressure switch, and the pressure sensor is electrically connected to the first drive motor.

[0009] Preferably, the transmission chain rotates clockwise, the output end of the first transmission motor is provided with a sprocket, and the output end of the first transmission motor passes through the first protective cover and is driven by the transmission chain through the sprocket.

[0010] Preferably, the transmission chain is fixedly connected to multiple transmission seats, both ends of the tobacco leaf clamping strip are inserted into the inner side of the positioning groove, and the middle part of the tobacco leaf clamping strip is provided with a clamping through groove.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] 1. When curing tobacco leaves, the mobile trolley is driven by four wheels to move into the curing barn. The hydraulic cylinder lifts the scissor frame, and then the two scissor frames rotate relative to each other and lift the lifting platform. This causes the lifting platform to lift the front end of the transmission frame through the support frame and connecting crossbar and swing relative to the pulley frame. When the two support seats are off the ground, the installation angle of the transmission frame can be adjusted. The second drive motor drives the connecting crossbar to make vertical adjustment through the drive screw. In turn, the connecting crossbar drives the transmission frame to rotate relative to the pulley frame, thereby adjusting the height of the second protective cover relative to the lifting platform to meet the user's needs.

[0013] 2. A clamping groove is provided in the middle of the tobacco leaf clamping strip. The tobacco leaves are arranged and clamped through the clamping groove. Then, the tobacco leaf clamping strip is inserted into the positioning groove between two adjacent transmission seats to achieve the positioning and installation of the tobacco leaf clamping strip. The first drive motor drives multiple transmission seats to rotate clockwise synchronously through the sprocket and drive chain. In this way, the transmission seats can drive the tobacco leaves to be transported stably through the tobacco leaf clamping strip. The tobacco leaf clamping strip can be manually separated from the transmission seat and suspended in the tobacco curing barn to realize the curing operation of the tobacco leaves. When the tobacco leaves can contact the pressure sensor, the tobacco leaves can be monitored and the first drive motor can stop the drive chain to prevent the tobacco leaf clamping strip from falling off due to the continuous rotation of the transmission seat by the drive chain, thus ensuring the safety of the tobacco leaf feeding. The curing tobacco leaves can be unloaded by reversing the drive chain, realizing the loading and unloading of tobacco leaves. Attached Figure Description

[0014] Figure 1 This is a frontal schematic diagram of the entire utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 3 This is a partial structural schematic diagram of the second protective cover of this utility model;

[0017] Figure 4 This utility model Figure 2 A magnified structural diagram of region A in the middle.

[0018] In the diagram: 1. Mobile trolley; 2. Wheels; 3. Scissor frame; 4. Lifting platform; 5. Support frame; 6. Transmission frame; 7. Pulley frame; 8. Support base; 9. First drive motor; 10. First protective cover; 11. Second protective cover; 12. Second drive motor; 13. Drive chain; 14. Transmission base; 15. Pressure switch; 16. Positioning groove; 17. Tobacco leaf clamping strip; 18. Drive screw; 19. Connecting crossbar; 20. Hydraulic cylinder. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0020] The first drive motor 9 (model GV50-3.7KW-60-S), the second drive motor 12 (model KOM7080), and the hydraulic cylinder 20 (model HOB80X250-100) mentioned in this utility model can all be obtained from the market or through private customization.

[0021] like Figure 1 and Figure 4As shown, the chain-driven tobacco loading and unloading machine of this utility model includes a mobile trolley 1, a lifting platform 4 mounted on top of the mobile trolley 1, wheels 2 rotatably connected to the four corners of the mobile trolley 1, two scissor frames 3 installed between the mobile trolley 1 and the lifting platform 4, a hydraulic cylinder 20 installed between the mobile trolley 1 and one of the scissor frames 3, the two scissor frames 3 rotatably connected by pins, the two scissor frames 3 rotatably connected to the mobile trolley 1 and the lifting platform 4, the bottom end of the hydraulic cylinder 20 rotatably connected to the mobile trolley 1, and the output end of the hydraulic cylinder 20 rotatably connected to one of the scissor frames 3, so that the hydraulic cylinder 20 lifts the scissor frame 3, thereby causing the two scissor frames 3 to rotate relative to each other and lift the lifting platform 4, thereby adjusting the height of the personnel.

[0022] A support frame 5 is fixedly installed at the rear end of the lifting platform 4. A connecting crossbar 19 is slidably connected to the inner side of the upper end of the support frame 5. The lifting platform 4 lifts the front end of the transmission frame 6 through the support frame 5 and the connecting crossbar 19 and swings it relative to the pulley frame 7. Thus, when the two support seats 8 are off the ground, the installation angle of the transmission frame 6 can be adjusted. The transmission frame 6 is rotatably connected to the middle of the connecting crossbar 19. A transmission screw 18 is rotatably connected to the inner side of one end of the support frame 5. A second transmission motor 12 is fixedly installed at the upper end of the support frame 5. The output end of the second transmission motor 12 passes through the support frame 5 and is connected to the transmission screw 18 through a coupling. The transmission screw 18 is threadedly connected to the connecting crossbar 19, so that the second transmission motor 12 drives the connecting crossbar 19 to make vertical adjustments through the transmission screw 18. In turn, the connecting crossbar 19 drives the transmission frame 6 to rotate relative to the pulley frame 7, thereby adjusting the height of the second protective cover 11 relative to the lifting platform 4 to meet the user's needs.

[0023] As a preferred technical solution in this embodiment, such as Figures 1 to 3 As shown, a transmission chain 13 is movably installed on the outer side of the transmission frame 6. Multiple transmission seats 14 are fixedly installed on the outer side of the transmission chain 13. Positioning grooves 16 are provided on both sides of the transmission seat 14. A tobacco leaf clamping strip 17 is installed between each two adjacent transmission seats 14. The transmission chain 13 is fixedly connected to the multiple transmission seats 14. Both ends of the tobacco leaf clamping strip 17 are inserted into the inner side of the positioning groove 16. A clamping through groove is provided in the middle of the tobacco leaf clamping strip 17. The tobacco leaves are arranged and clamped through the clamping through groove, which facilitates the loading and unloading of tobacco leaves through the tobacco leaf clamping strip 17.

[0024] A first protective cover 10 is fixedly installed on the outer side of the rear end of the transmission frame 6. A pulley frame 7 is installed on the outer side of the first protective cover 10. A first drive motor 9 is fixedly installed on the upper end of the pulley frame 7. The rotation direction of the transmission chain 13 is clockwise. A sprocket is provided at the output end of the first drive motor 9. The output end of the first drive motor 9 passes through the first protective cover 10 and is driven by the transmission chain 13 through the sprocket. This allows the first drive motor 9 to synchronously drive multiple transmission seats 14 to rotate clockwise through the sprocket and the transmission chain 13. As a result, the transmission seats 14 can drive the tobacco leaves to be transported stably through the tobacco leaf clamping strip 17.

[0025] As a preferred technical solution in this embodiment, such as Figure 2 and Figure 3 As shown, two support seats 8 are fixedly installed in the middle of the transmission frame 6, and a second protective cover 11 is fixedly installed at the front end of the transmission frame 6. Two pressure switches 15 are installed on the inner side of the bottom end of the second protective cover 11. The second protective cover 11 is fixedly connected to the two pressure switches 15. A pressure sensor is provided inside the pressure switch 15. The contact of the pressure sensor extends from the inside of the pressure switch 15. The pressure sensor is electrically connected to the first drive motor 9. When the personnel do not remove the tobacco leaf clamping strip 17 from between the two transmission seats 14 in time, the tobacco leaf can contact the pressure sensor. The pressure sensor can then monitor the tobacco leaf and stop the transmission chain 13 through the first drive motor 9, thereby preventing the transmission chain 13 from continuously driving the transmission seat 14 to rotate and causing the tobacco leaf clamping strip 17 to fall off.

[0026] Working principle: When curing tobacco leaves, the mobile trolley 1 is driven by four wheels 2 to move into the curing barn. The hydraulic cylinder 20 is activated, which, under the support of the mobile trolley 1, lifts the scissor frame 3. The two scissor frames 3 then rotate relative to each other and lift the lifting platform 4. The lifting platform 4, through the support frame 5 and connecting crossbar 19, lifts the front end of the transmission frame 6 and swings relative to the pulley frame 7. When the two support seats 8 are off the ground, the installation angle of the transmission frame 6 can be adjusted. The second drive motor 12 is activated, which, under the support of the support frame 5, drives the connecting crossbar 19 through the drive screw 18 for vertical adjustment. The connecting crossbar 19 then drives the transmission frame 6 to rotate relative to the pulley frame 7, thereby adjusting the height of the second protective cover 11 relative to the lifting platform 4 to meet the user's needs.

[0027] A clamping groove is provided in the middle of the tobacco leaf clamping strip 17. The tobacco leaves are arranged and clamped through the clamping groove. Then, the tobacco leaf clamping strip 17 is inserted into the positioning groove 16 between two adjacent transmission seats 14 to achieve the positioning and installation of the tobacco leaf clamping strip 17. The first drive motor 9 is started, so that the first drive motor 9, supported by the pulley frame 7, drives multiple transmission seats 14 to rotate clockwise synchronously through the sprocket and the drive chain 13. Then, the transmission seats 14 can drive the tobacco leaves to be transported stably through the tobacco leaf clamping strip 17. When the tobacco leaf clamping strip 17 is transported to the vicinity of the second protective cover 11, the tobacco leaf clamping strip 17 is manually separated from the transmission seat 14 and the tobacco leaf clamping strip 17 is suspended in the tobacco curing room to realize the curing operation of the tobacco leaves.

[0028] A pressure sensor is provided inside the pressure switch 15, and the pressure sensor is electrically connected to the first drive motor 9. When the personnel fail to remove the tobacco leaf clamping strip 17 from between the two transmission seats 14 in time, the tobacco leaf can contact the pressure sensor. The pressure sensor can monitor the tobacco leaf and stop the transmission chain 13 through the first drive motor 9, thereby preventing the transmission chain 13 from continuously driving the transmission seat 14 to rotate and causing the tobacco leaf clamping strip 17 to fall off, ensuring the safety of tobacco leaf feeding. By reversing the transmission chain 13, the roasted tobacco leaf can be unloaded, realizing the loading and unloading of tobacco leaves.

[0029] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A chain-driven tobacco loading and unloading machine, comprising a mobile trolley (1), characterized in that: A lifting platform (4) is installed above the mobile trolley (1). A support frame (5) is fixedly installed at the rear end of the lifting platform (4). A connecting crossbar (19) is slidably connected to the inner side of the upper end of the support frame (5). A transmission frame (6) is rotatably connected to the middle of the connecting crossbar (19). A transmission chain (13) is movably installed on the outer side of the transmission frame (6). Multiple transmission seats (14) are fixedly installed on the outer side of the transmission chain (13). Positioning slots (16) are provided on both sides of each transmission seat (14). Each pair of adjacent transmission seats... A tobacco leaf clamping strip (17) is installed between each of the seats (14). Two support seats (8) are fixedly installed in the middle of the transmission frame (6). A second protective cover (11) is fixedly installed at the front end of the transmission frame (6). Two pressure switches (15) are installed on the inner side of the bottom end of the second protective cover (11). A first protective cover (10) is fixedly installed on the outer side of the rear end of the transmission frame (6). A pulley frame (7) is installed on the outer side of the first protective cover (10). A first drive motor (9) is fixedly installed at the upper end of the pulley frame (7).

2. The chain-driven tobacco loading and unloading machine according to claim 1, characterized in that: The four corners of the mobile trolley (1) are rotatably connected to wheels (2). Two scissor frames (3) are installed between the mobile trolley (1) and the lifting platform (4). A hydraulic cylinder (20) is installed between the mobile trolley (1) and one of the scissor frames (3). The two scissor frames (3) are rotatably connected by pins. The two scissor frames (3) are rotatably connected to the mobile trolley (1) and the lifting platform (4) by pins. The bottom end of the hydraulic cylinder (20) is rotatably connected to the mobile trolley (1). The output end of the hydraulic cylinder (20) is rotatably connected to one of the scissor frames (3).

3. The chain-driven tobacco loading and unloading machine according to claim 1, characterized in that: A transmission screw (18) is rotatably connected to the inner side of one end of the support frame (5). A second transmission motor (12) is fixedly installed at the upper end of the support frame (5). The output end of the second transmission motor (12) passes through the support frame (5) and is connected to the transmission screw (18) through a coupling. The transmission screw (18) is connected to the connecting crossbar (19) by a thread.

4. The chain-driven tobacco loading and unloading machine according to claim 1, characterized in that: The second protective cover (11) is fixedly connected to two pressure switches (15). The pressure switch (15) is provided with a pressure sensor on its inner side. The contact of the pressure sensor extends from the inner side of the pressure switch (15). The pressure sensor is electrically connected to the first drive motor (9).

5. The chain-driven tobacco loading and unloading machine according to claim 1, characterized in that: The transmission chain (13) rotates clockwise. The output end of the first transmission motor (9) is provided with a sprocket. The output end of the first transmission motor (9) passes through the first protective cover (10) and is driven by the transmission chain (13) through the sprocket.

6. The chain-driven tobacco loading and unloading machine according to claim 1, characterized in that: The transmission chain (13) is fixedly connected to multiple transmission seats (14), and both ends of the tobacco leaf clamping strip (17) are inserted into the inner side of the positioning groove (16). The middle part of the tobacco leaf clamping strip (17) is provided with a clamping through groove.

Images