Tobacco uniform feeding and compacting linkage system based on belt reciprocating feeding and pneumatic pressure rod

Abstract

The application discloses a tobacco uniform feeding and compacting linkage system based on a belt reciprocating feeding and pneumatic pressing rod linkage system, an up-down same rail device, a uniform feeding conveying device, a cylinder pressing device and a rack. The application utilizes the belt reciprocating feeding and pneumatic pressing rod linkage system, so that the sorted tobacco is uniformly dropped into the tobacco boxes, and the loose tobacco in the tobacco boxes is uniformly compacted, the operation can be automatically performed, manual leveling and compacting are not needed, and the working efficiency is greatly improved. Meanwhile, the reverse conveying function of the uniform feeding conveying device can switch the conveying tobacco between the two tobacco boxes below, a gap is provided for replacing the tobacco boxes, and the working efficiency is further improved. In addition, the driving sources and transmission systems of the uniform feeding conveying device and the cylinder pressing device are independent of each other, the two devices are cooperated with each other during work, the uniform feeding and boxing and the uniform compacting are simultaneously completed, one step is achieved, the working stability is high, the whole process is automatically operated, and the efficiency is high.

Description

Technical Field

[0001] This invention belongs to the field of tobacco leaf packing technology, specifically relating to a tobacco leaf uniform compaction linkage system based on belt reciprocating feeding and pneumatic pressure bar. Background Technology

[0002] Tobacco re-drying is a process of further drying and processing pre-processed raw tobacco, primarily aimed at adjusting the moisture content of the tobacco leaves for safe storage. The main process generally includes: raw material preparation, re-drying, packaging, drying, and finished product warehousing. In the raw material preparation stage, the tobacco bales need pre-treatment, and the tobacco leaves need to be cleaned, sorted, and boxed to ensure they meet grade purity requirements and are ready for production. Boxing after sorting involves placing the tobacco boxes below the end of the tobacco conveyor system, allowing the tobacco leaves to fall naturally into the boxes after being transported above them. However, because the positions of the tobacco boxes and conveyor are fixed, the landing point of the tobacco leaves within the boxes is also fixed, easily leading to cone-shaped accumulation of tobacco leaves within the boxes. This prevents the tobacco leaves from naturally filling the entire box, and the loose accumulation significantly reduces the space utilization rate of the tobacco boxes.

[0003] To address the aforementioned problems, existing technical solutions involve one or two people manually intervening at the packing location to ensure the tobacco leaves in the crates are leveled and compacted. This method is labor-intensive and inefficient, and currently there is no automated equipment specifically designed for the uniform packing and compaction of tobacco leaves. Therefore, it is essential to develop a tobacco leaf uniform packing and compaction linkage system based on belt reciprocating feeding and pneumatic pressure bars that can solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a tobacco leaf uniform compaction linkage system based on belt reciprocating feeding and pneumatic pressure bar that can operate automatically without manual leveling and compaction.

[0005] The objective of this invention is achieved by including an upper and lower track alignment device, a material leveling and conveying device, a cylinder pressing device, and a frame. The upper and lower track device includes an upper track, a lower track, a rack, and a guide wheel assembly. An upper track and a lower track are fixed on both sides of the frame, with the upper track located above the lower track. The rack is fixed inside the lower track and is parallel to the lower track. There are multiple guide wheel assemblies, which are respectively located between the upper track and the lower track. The material conveying device includes a flat belt conveyor, a first support frame, a second support frame, an electric rotating shaft device, and a first gear. There are two first support frames, and each end of the first support frame is connected to a corresponding guide wheel assembly. The second support frame is located between the two first support frames. The bottom of the second support frame is provided with a first electric rotating shaft device. Each end of the rotating shaft of the first electric rotating shaft device is provided with a first gear, which meshes with a corresponding rack. The flat belt conveyor is mounted on the first support frame and the second support frame. The cylinder pressing device includes a cylinder, a cylinder bracket, a third support frame, a second electric rotating shaft device, a second gear, and a pressing rod. There are two third support frames, located on both sides of the material conveying device. The two ends of the third support frame are connected to corresponding guide wheel groups. The bottom of the third support frame is provided with a second electric rotating shaft device. The two ends of the rotating shaft of the second electric rotating shaft device are provided with second gears, which mesh with corresponding racks. A cylinder bracket is fixed on the third support frame, and a cylinder is provided on the cylinder bracket. The piston rod of the cylinder is vertically downward, and the end of the piston rod is fixedly connected to the middle of the pressing rod. The piston rod is perpendicular to the pressing rod.

[0006] Preferably, the first and second electric rotating shaft devices have the same structure, each including a bearing housing, a reducer, a motor, a coupling, and a rotating shaft. The motor and reducer are both located at the bottom of their respective support frames. The motor is connected to the reducer, and the end of the reducer is connected to the rotating shaft via a coupling. The end of the rotating shaft is connected to a corresponding gear, and a bearing housing is provided on the rotating shaft. The bearing housing is fixedly connected to the bottom of the corresponding support frame. This electric rotating shaft device has a compact structure and is hidden at the bottom of the support frame, ensuring forward and backward movement without affecting the normal operation of other components.

[0007] Preferably, the cylinder pressing device further includes a sensor mounting base and force sensors. The sensor mounting base is located at the front end of the cylinder, and there are three force sensors, all located at the front end of the sensor mounting base. During each pressing of the tobacco leaves, the force sensors detect the downward pressure. Once the set value is reached, the signal is fed back to the air circuit reversing valve at the front end of the cylinder to control the working stroke of the cylinder. The force sensors are sensors well known to those skilled in the art, and their connection relationship with the cylinder and the detection process are common knowledge in the field.

[0008] For the tobacco box, a weighing module can be installed at the bottom of the tobacco box to detect the accurate weight data of the tobacco leaves after the pressure rod moves up. When the weight of the tobacco leaves reaches the rated loading capacity of the tobacco box, the tobacco box is full. Alternatively, a controller can be configured to control the flat belt conveyor to start reversing when the weight data from the weighing module reaches a threshold. This, in conjunction with another cylinder pressing device, performs uniform packing and compaction of another empty tobacco box, achieving fully automatic operation. The connection relationship and control process between the controller and the controlled component weighing module are technologies known in the field.

[0009] The beneficial effects of this invention are as follows: This invention utilizes a belt reciprocating feeding system and a pneumatic pressure bar linkage system to ensure that the sorted incoming tobacco leaves fall evenly into the tobacco box and are evenly compacted within the box. This automated operation eliminates the need for manual leveling and compaction, significantly improving work efficiency. Simultaneously, the reverse conveying function of the material leveling device allows for switching between the two tobacco boxes below, providing a buffer for changing boxes and further enhancing work efficiency. Furthermore, the drive sources and transmission systems of the material leveling device and the cylinder pressing device are independent, yet they work together to simultaneously complete the material leveling, boxing, and uniform compaction in one step. This process is highly stable, fully automated, and highly efficient. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 A three-dimensional structural diagram showing the assembly of the upper and lower track-aligned device, the material conveying device, and the cylinder pressing device. Figure 3 This is a schematic diagram of the three-dimensional structure of the compression bar; Figure 4 A three-dimensional structural diagram of the electric rotating shaft device; In the diagram: 1-Upper and lower track alignment device, 101-Upper track, 102-Lower track, 103-Rack, 104-Guide wheel assembly, 2-Equalizing material conveying device, 201-Flat belt conveyor, 202-First support frame, 203-Second support frame, 204-First gear, 3-Cylinder pressing device, 301-Cylinder, 302-Cylinder bracket, 303-Third support frame, 304-Second gear, 305-Pressure rod, 306-Sensor mounting base, 307-Force sensor, 4-Frame, 501-Bearing seat, 502-Reducer, 503-Motor, 504-Coupling, 505-Rotating shaft, 6-Smoke box. Detailed Implementation

[0011] The present invention will be further described below with reference to the embodiments and accompanying drawings, but this does not limit the present invention in any way. Any changes or substitutions made based on the teachings of the present invention shall fall within the protection scope of the present invention.

[0012] Example 1 As attached Figures 1-3 As shown, this embodiment of the tobacco leaf uniform compaction linkage system based on belt reciprocating feeding and pneumatic pressure bar includes an upper and lower track device 1, a uniform conveying device 2, a cylinder pressing device 3, and a frame 4. The upper and lower track device 1 includes an upper track 101, a lower track 102, a rack 103, and a guide wheel assembly 104. An upper track 101 and a lower track 102 are fixed on both sides of the frame 4, that is, there are two upper tracks 101 and two lower tracks 102 in total. The upper track 101 is located above the lower track 102. The rack 103 is fixed inside the lower track 102 and is parallel to the lower track 102. There are eight guide wheel assemblies 104, which are respectively arranged between the upper track 101 and the lower track 102. The material conveying device 2 includes a flat belt conveyor 201, a first support frame 202, a second support frame 203, an electric rotating shaft device, and a first gear 204. The flat belt conveyor 201 is a reversible belt conveyor that feeds material to two cigarette boxes located at both ends of the flat belt conveyor 201. There are two first support frames 202, and each end of the first support frame 202 is connected to a corresponding guide wheel group 104, i.e., one first support frame 202 corresponds to two guide wheel groups 104. The second support frame 203 is located between the two first support frames 202. The bottom of the second support frame 203 is provided with a first electric rotating shaft device. The two ends of the rotating shaft of the first electric rotating shaft device are respectively provided with a first gear 204. The first gear 204 meshes with the corresponding rack 103. The flat belt conveyor 201 is mounted on the first support frame 202 and the second support frame 203. The cylinder pressing device 3 includes a cylinder 301, a cylinder bracket 302, a third support frame 303, a second electric rotating shaft device, a second gear 304, and a pressing rod 305. There are two third support frames 303, located on both sides of the material conveying device 2. The two ends of the third support frame 303 are connected to the corresponding guide wheel groups 104, that is, one third support frame 303 corresponds to two guide wheel groups 104. The bottom of the third support frame 303 is provided with a second electric rotating shaft device. The two ends of the rotating shaft of the second electric rotating shaft device are respectively provided with second gears 304. The second gears 304 mesh with the corresponding racks 103. The cylinder bracket 302 is fixed on the third support frame 303. The cylinder 301 is provided on the cylinder bracket 302. The piston rod of the cylinder 301 is vertically downward. The end of the piston rod is fixedly connected to the middle of the pressing rod 305, and the piston rod is perpendicular to the pressing rod 305.

[0013] Example 2 As attached Figure 4As shown, this embodiment of the tobacco leaf uniform compaction linkage system based on belt reciprocating feeding and pneumatic pressure bar is based on Embodiment 1. The first electric rotating shaft device and the second electric rotating shaft device have the same structure, both including a bearing seat 501, a reducer 502, a motor 503, a coupling 504, and a rotating shaft 505. The motor 503 and the reducer 502 are both located at the bottom of the corresponding support frame. The motor 503 is connected to the reducer 502. The end of the reducer 502 is connected to the rotating shaft 505 through the coupling 504. The end of the rotating shaft 505 is connected to the corresponding gear. The rotating shaft 505 is provided with a bearing seat 501, which is fixedly connected to the bottom of the corresponding support frame. During operation, the motor 503 drives the rotating shaft 505 to rotate through the reducer 502, thereby causing the corresponding gear to rotate and realize the back-and-forth translational motion along the rack 103.

[0014] Example 3 This embodiment of the tobacco leaf uniform compaction linkage system based on belt reciprocating feeding and pneumatic pressure bar is based on embodiment 2. The cylinder pressing device 3 also includes a sensor mounting base 306 and a force sensor 307. The sensor mounting base 306 is located at the front end of the cylinder 301. There are 3 force sensors 307, all located at the front end of the sensor mounting base 306. The force sensor 307 at the front end of the cylinder 301 monitors the pressure applied by the cylinder. When the pressure reaches the set value, the cylinder piston retracts upward a certain distance.

[0015] The working principle and process of this invention are as follows: Tobacco leaves are placed on the flat belt conveyor 201 of the uniform material conveying device 2. The flat belt conveyor 201 conveys the tobacco leaves forward. At the same time, the first electric rotating shaft device of the uniform material conveying device 2 drives the first gear 204 to rotate, which, together with the rack 103, enables the flat belt conveyor 201 to move back and forth as a whole, changing the landing point of the tobacco leaves in the tobacco box 6, so that the tobacco leaves fall evenly into the tobacco box 6 below. During operation, the guide wheel group 104 moves between the upper track 101 and the lower track 102, and the upper and lower track device 1 enhances the stability of the system movement. When a certain amount of tobacco leaves are loaded, the cylinder 301 of the cylinder pressing device 3 is activated, which drives the pressing rod 305 to perform a pressing operation on the tobacco leaves in the tobacco box 6, compressing the loose tobacco leaves. Simultaneously, the second electric rotating shaft of the cylinder pressing device 3 is activated. Utilizing the cooperation between the second gear 304 and the rack 103, the cylinder pressing device 3 moves back and forth as a whole, thus following the material conveying device 2 and uniformly pressing the tobacco leaves in the tobacco box 6 during this process. When the tobacco box 6 is fully loaded, the flat belt conveyor 201 is reversed, i.e., conveyed backward, uniformly conveying the tobacco leaves to another empty tobacco box behind. The pressing operation of this tobacco box is completed by another cylinder pressing device 3, while the cylinder pressing device 3 in front moves to its initial position and stops pressing. At this time, the full tobacco box in front can be moved out and replaced with an empty tobacco box. By repeating this process, the loaded tobacco boxes can be replaced without shutting down the entire system.

Claims

1. A tobacco leaf uniform feeding and compaction linkage system based on belt reciprocating feeding and pneumatic pressure bar, comprising an upper and lower track device (1), a uniform conveying device (2), a cylinder pressing device (3), and a frame (4), characterized in that: The upper and lower track device (1) includes an upper track (101), a lower track (102), a rack (103), and a guide wheel assembly (104). An upper track (101) and a lower track (102) are fixed on both sides of the frame (4). The upper track (101) is located above the lower track (102). The rack (103) is fixed inside the lower track (102) and is parallel to the lower track (102). There are multiple guide wheel assemblies (104), which are respectively located between the upper track (101) and the lower track (102). The material conveying device (2) includes a flat belt conveyor (201), a first support frame (202), a second support frame (203), an electric rotating shaft device, and a first gear (204). There are two first support frames (202), and the two ends of the first support frame (202) are respectively connected to the corresponding guide wheel group (104). The second support frame (203) is located between the two first support frames (202). The bottom of the second support frame (203) is provided with a first electric rotating shaft device. The two ends of the rotating shaft of the first electric rotating shaft device are respectively provided with a first gear (204). The first gear (204) meshes with the corresponding rack (103). The flat belt conveyor (201) is located on the first support frame (202) and the second support frame (203). The cylinder pressing device (3) includes a cylinder (301), a cylinder bracket (302), a third support frame (303), a second electric rotating shaft device, a second gear (304), and a pressing rod (305). There are two third support frames (303), which are located on both sides of the material conveying device (2). The two ends of the third support frame (303) are connected to the corresponding guide wheel group (104). The bottom of the third support frame (303) is provided with a second electric rotating shaft device. The two ends of the rotating shaft of the second electric rotating shaft device are provided with second gears (304). The second gears (304) mesh with the corresponding racks (103). The cylinder bracket (302) is fixed on the third support frame (303). The cylinder bracket (302) is provided on the cylinder bracket (302). The cylinder (301) is provided on the cylinder bracket (302). The piston rod of the cylinder (301) is vertically downward. The end of the piston rod is fixedly connected to the middle of the pressing rod (305). The piston rod is perpendicular to the pressing rod (305). When a certain amount of tobacco leaves are loaded, the cylinder (301) of the cylinder pressing device (3) is started, driving the pressure rod (305) to press the tobacco leaves in the tobacco box (6) and compress the loose tobacco leaves; at the same time, the second electric rotating shaft device of the cylinder pressing device (3) is started, and the cylinder pressing device (3) moves back and forth as a whole by using the cooperation of the second gear (304) and the rack (103), thereby following the material conveying device (2) to move back and forth and uniformly press the tobacco leaves in the tobacco box (6) in this process.

2. The tobacco leaf uniform compaction linkage system based on belt reciprocating feeding and pneumatic pressure bar according to claim 1, characterized in that... The first electric rotating shaft device and the second electric rotating shaft device have the same structure, both including a bearing seat (501), a reducer (502), a motor (503), a coupling (504), and a rotating shaft (505). The motor (503) and the reducer (502) are both located at the bottom of the corresponding support frame. The motor (503) is connected to the reducer (502). The end of the reducer (502) is connected to the rotating shaft (505) through the coupling (504). The end of the rotating shaft (505) is connected to the corresponding gear. The rotating shaft (505) is provided with a bearing seat (501), and the bearing seat (501) is fixedly connected to the bottom of the corresponding support frame.

3. The tobacco leaf uniform compaction linkage system based on belt reciprocating feeding and pneumatic pressure bar as described in claim 1, characterized in that... The cylinder pressing device (3) also includes a sensor mounting base (306) and a force sensor (307). The sensor mounting base (306) is located at the front end of the cylinder (301), and there are 3 force sensors (307), all located at the front end of the sensor mounting base (306).

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