An inverted conveyor and method for tobacco industry sheet blending

Abstract

The application discloses a turnover conveyor and method for tobacco industry sheet blending, which is provided with a sheet blending process after a leaflet cutting process and before a loose rehydration process, and comprises a turnover conveyor frame, a walking wheel, a jacking support device, an air cylinder, an air source control part, a buffer block, a guide plate, a turnover part, a turnover plate, a roller conveying part, a motor speed reducer, a transmission device, an electric control system, a sheet box, an induction switch and a bearing seat. The sheet box is horizontally pushed to the roller conveying part by an electric forklift, the sheet box is automatically turned over and poured onto the water platform surface of the turnover plate after being manually opened by a worker, and the worker manually pushes the scattered sheet to a conveying belt machine of a sheet blending line. The whole blending process is time-saving and labor-saving, uniform, reliable, efficient and safe.

Description

[0001] The present application relates to the technical field of tobacco primary processing equipment, and particularly relates to a turnover conveyor and method for tobacco sheet blending. BACKGROUND

[0002] In a tobacco primary processing workshop, sheet blending needs to be uniformly mixed between the slicing process and the loose re-moistening process, i.e. between the two key processes, due to the different production brand process requirements. At present, in order to ensure the reliability, uniformity and timeliness of the sheet blending process, 2-3 operators are specially configured to complete the sheet blending process by using the manual hand-holding mode, i.e. relying on 2-3 operators to continuously add and blend the sheet one by one. However, due to the requirement of uniform addition of the blended sheet, the manual sheet blending mode cannot efficiently meet the actual uniform blending requirement, which brings certain quality risk to the final product quality. In addition, the manual hand-holding sheet blending requires 2-3 operators to continuously repeat the process of bending and pushing, and each batch of blending process needs to last for 3-4 hours. According to the production of 3 batches per day, 9-12 hours of work is needed per day. This process not only brings great labor intensity and physical harm to the operators on site, but also has a high risk of being injured by the sheet blending conveying equipment. Therefore, the whole process of manual sheet blending is time-consuming and labor-intensive, has high safety risk, poor reliability and stability. Based on this, the present application designs a turnover conveyor and method for tobacco sheet blending to solve the above problems. SUMMARY

[0003] The present application aims to overcome the deficiencies in the prior art and provide a turnover conveyor and method for tobacco sheet blending. The semi-automatic sheet blending process greatly reduces the labor intensity of the operators, and only one operator is needed to use a special tool to uniformly push the whole box of sheet to the surface of the sheet blending line conveying belt. The whole blending process is time-saving and labor-saving, uniform, reliable, efficient and safe.

[0004] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0005] The application discloses a turnover conveyor for tobacco industry sheet blending, which is provided with a sheet blending process after a slicing process of a tobacco leaf making section and before a loose rehydration process, and comprises a turnover conveyor frame (1), traveling wheels (2), jacking support devices (3), air cylinders (4), an air source control part (5), buffer blocks (6), guide plates (7), a turnover part (8), a turnover plate (81), a roller conveying part (9), a motor reducer (10), a transmission device (11), an electric control system (12), a sheet box (13), inductive switches (15, 151), bearing seats (16), wherein the frame comprises an upper frame and a lower frame; characterized in that: a plurality of traveling wheels, a plurality of jacking support devices and air cylinders are mounted on the lower frame, and a plurality of buffer blocks are mounted on the upper frame; the turnover part comprises a turnover plate, a roller conveying part, an air cylinder and guide plates, the turnover plate is rotatably mounted on the upper frame through bearing seats at two sides of the turnover plate, the upper end of the air cylinder is hingedly connected with the bottom of the turnover plate, the lower end of the air cylinder is hingedly connected with an air cylinder mounting seat, the air cylinder mounting seat is mounted on the lower frame, the turnover plate is in an L shape, the roller conveying part is fixed at a first end of the turnover plate, the roller conveying part comprises a plurality of rollers, a transmission device and a plurality of inductive switches, the transmission device comprises a motor reducer and a sprocket and chain transmission assembly, the inductive switches and the transmission device are mounted at the first end of the turnover plate, a plurality of guide plates are arranged at a second end of the turnover plate, the motor reducer is in transmission connection with the plurality of rollers through the sprocket and chain transmission assembly, an air source control part is connected with the air cylinder, the air source control part comprises a filter pressure regulating valve and an electromagnetic valve, and the electric control system is in electric connection with the inductive switches at the first end of the L-shaped turnover plate, the motor reducer and the electromagnetic valve.

[0006] Further, the sheet blending process is arranged after the slicing process of the tobacco leaf making section and before the loose rehydration process, the turnover conveyor is arranged on one side of a sheet blending line, the sheet box is horizontally pushed to the roller conveying part by an electric forklift, the sheet box is automatically turned over to the water platform surface of the turnover plate after being manually opened, and then the operator manually pushes the scattered sheet to the conveying belt machine of the sheet blending line.

[0007] Further, the four jacking support devices are used to support the frame after the frame is aligned with the sheet blending line, the turnover part is used to realize the overturning of the opened sheet box from the vertical position to the horizontal position, the plurality of rollers are designed to facilitate the smooth conveying of the sheet box, and the air cylinder is used to realize the overturning action of the turnover part between the horizontal position and the vertical position.

[0008] Further, the turnover plate is in an L shape, two guide plates are arranged on the surface of the second end of the turnover plate, and the scattered sheet is prevented from falling to the ground during the manual pushing process.

[0009] Furthermore, the inductive switch is located at the first end of the flip plate. Under the control of the electronic control system, it can start and stop the roller conveyor section, that is, realize the position control of the sheet box. Under the control of the electronic control system, the inductive switch can control the solenoid valve on the air source control section through the PLC program, that is, after the sheet box reaches the appropriate position, the roller conveyor section stops rotating, and after a set time delay, the flip plate starts to flip.

[0010] Furthermore, the cylinder has throttle valves at both ends, which, under the control of the air source control unit, can adjust the tilting speed of the tilting part between the horizontal and vertical positions. The cylinder is driven by two cylinders.

[0011] A control method for a turning conveyor used in tobacco sheet blending, comprising:

[0012] S1: First, push the tilting conveyor frame (1) to the appropriate position according to the site layout diagram, then lower the lifting support device (3) and adjust it to be level. At this time, the horizontal platform surface of the tilting plate (81) is just flush with the surface of the thin film blending line conveyor belt, and the constricted part of the guide plate (7) is just seamlessly connected with the side wall panels of the thin film blending line conveyor.

[0013] S2: Next, an operator starts the flipping unit (8) through the button switch on the electronic control system (12) so that the roller conveying unit (9) is in a horizontal position; then, the operator uses an electric forklift to push the sheet box (13) to one side of the roller conveying unit, and the bottom of the sheet box is at the same level as the upper surface of the roller of the roller conveying unit. At this time, the operator gently pushes the sheet box so that it is sensed by the first induction switch (15), which triggers the PLC program to start the roller conveying unit to complete the process of pushing the sheet box forward; when the sheet box blocks the second induction switch (151), the PLC program is triggered, the roller conveying unit stops, and after a certain time delay, under the action of the air source control unit and the electronic control system cooperating to control the cylinder action, the flipping plate starts to realize the slow flipping process to the horizontal state. At this time, the electronic control system controls the flipping plate to always be in the current horizontal state through the PLC program.

[0014] S3: Finally, the operator unpacks the box, uses tools to pry out the thin film (14), and uses tools to push the thin film to the surface of the thin film blending line conveyor belt, thus completing the entire thin film blending process. After one box of thin films is blended, the empty thin film box is manually removed, and then the button switch on the electrical control system is activated to start the flipping part so that the roller conveyor part is in a horizontal position.

[0015] S4: The subsequent thin film box (13) mixing process is the same as above.

[0016] The present invention provides a turning conveyor and method for blending sheet tobacco in the tobacco industry. This semi-automatic sheet blending process greatly reduces the labor intensity of operators. Only one operator is needed to use special tools to push the entire box of sheets onto the conveyor belt of the sheet blending line in a concentrated and uniform manner. The entire blending process is time-saving, labor-saving, uniform, reliable, efficient and safe. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the on-site process layout of the overturning conveyor for the blending of tobacco flakes according to the present invention;

[0018] Figure 2 This is a schematic diagram showing the matching of the flipping conveyor for tobacco flake blending with the workstation of the flake blending line according to the present invention;

[0019] Figure 3 This is a schematic diagram of the turning process of the turning conveyor used in the tobacco industry for the blending of sheet tobacco according to the present invention;

[0020] Figure 4 This is a schematic diagram of the overturning conveyor structure for the tobacco industry flake blending of the present invention;

[0021] Figure 5 This is a schematic diagram of the blending process of the overturning conveyor used in the tobacco industry for blending sheet products according to the present invention.

[0022] In the diagram: 1. Tilting conveyor frame; 2. Walking wheels; 3. Lifting support device; 4. Cylinder; 5. Air source control unit; 6. Buffer block; 7. Guide plate; 8. Tilting part; 81. Tilting plate; 9. Roller conveyor; 10. Motor reducer; 11. Transmission device; 12. Electrical control system; 13. Sheet box; 14. Sheet; 15. Induction switch; 151. Bearing seat; 16. Detailed Implementation

[0023] To make the technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in a clearer and more complete manner below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some embodiments of the present invention, and are only used to explain the present invention, not to limit the present invention. It should be noted that, for ease of description, only the parts / structures related to the present invention are shown in the accompanying drawings. Other related parts can be referred to with ordinary design. In the absence of conflict, the embodiments and technical features in the embodiments of the present invention can be combined with each other to obtain new embodiments.

[0024] Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this invention. Furthermore, unless otherwise defined, the technical or scientific terms used in the description of this invention should have the ordinary meaning understood by those skilled in the art.

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] like Figures 1-5 As shown, a turning conveyor for blending sheet tobacco in the tobacco industry includes a sheet blending process after the slicing process and before the loosening and rehydration process of leaf processing segments. It comprises a turning conveyor frame 1, traveling wheels 2, a lifting support device 3, a cylinder 4, an air source control unit 5, a buffer block 6, a guide plate 7, a turning section 8, a turning plate 81, a roller conveyor section 9, a motor reducer 10, a transmission device 11, an electrical control system 12, a sheet box 13, sheets 14, inductive switches 15 and 151, and a bearing seat 16. The frame 1 includes an upper frame and a lower frame; characterized in that: multiple traveling wheels 2, multiple lifting support devices 3, and cylinders 4 are installed on the lower frame, and multiple buffer blocks 6 are installed on the upper frame; the tilting part 8 includes a tilting plate 81, a roller conveying part 9, cylinders 4, and guide plates 7, the tilting plate 81 is rotatably mounted on the upper frame on both sides through bearing seats 16, the upper end of the cylinder 4 is hinged to the bottom of the tilting plate 81, the lower end of the cylinder 4 is hinged to the cylinder mounting seat, the cylinder mounting seat is mounted on the lower frame, and the tilting plate 81... The L-shaped roller conveyor 9 is fixed to the first end of the tilting plate 81. The roller conveyor 9 includes multiple rollers, a transmission device 11, and multiple inductive switches (15, 151). The transmission device 11 includes a motor reducer 10 and a sprocket and chain transmission assembly. The inductive switches (15, 151) and the transmission device 11 are installed at the first end of the tilting plate 81. Multiple guide plates 7 are set at the second end of the tilting plate 81. The motor reducer 10 is connected to the multiple rollers through the sprocket and chain transmission assembly. The air source control unit 5 is connected to the cylinder 4. The air source control unit 5 includes a filter pressure regulating valve and a solenoid valve. The electrical control system 12 is electrically connected to the inductive switches (15, 151), the motor reducer 10, and the solenoid valve at the first end of the L-shaped tilting plate 81.

[0027] A thin-flake blending process is set up after the leaf slicing process and before the loosening and rehydration process. A flipping conveyor is set up on one side of the thin-flake blending line. The thin-flake box 13 is pushed horizontally to the roller conveyor section 9 by an electric forklift. After the box is opened manually, the switch is turned on, and the thin-flake box 13 is automatically flipped and poured onto the horizontal platform of the flipping plate 81. Then, the operator manually pushes the scattered thin flakes 14 onto the conveyor belt of the thin-flake blending line.

[0028] Four lifting support devices 3 are used to support the frame 1 after the frame 1 is aligned with the sheet mixing line.

[0029] The flipping section 8 is used to flip the sheet box 13 from a vertical position to a horizontal position after it is opened. The multiple roller design facilitates the smooth transport of the sheet box 13. The cylinder 4 is used to realize the flipping action of the flipping section 8 between the horizontal and vertical positions.

[0030] The flip plate 81 is designed in an "L" shape, and two guide plates 7 are provided on its second end surface to prevent the scattered sheet 14 from falling to the ground during the process of manually pushing the scattered sheet 14.

[0031] The inductive switches (15, 151) are located at the first end of the flip plate 81. Under the action of the electronic control system 12, they can start and stop the roller conveyor 9, that is, realize the position control of the sheet box 13. Under the action of the electronic control system 12, the inductive switches (15, 151) can control the solenoid valve on the air source control unit 5 through the PLC program, that is, after the sheet box 13 reaches the appropriate position, the roller conveyor 9 stops rotating, and after a set time delay, the flip plate 81 starts to flip.

[0032] The cylinder 4 has throttle valves at both ends. Under the action of the air source control unit 5, the tilting speed of the tilting part 8 can be adjusted between the horizontal and vertical positions. The cylinder 4 can be driven by two cylinders.

[0033] A control method for a turning conveyor used in tobacco sheet blending, comprising:

[0034] (1) First, push the tilting conveyor frame 1 to the appropriate position according to the site layout diagram, and then lower the lifting support device 3 to adjust the level. At this time, the horizontal platform surface of the tilting plate 81 is just flush with the surface of the thin film blending line conveyor belt, and the constricted part of the guide plate 7 is just seamlessly connected with the side wall panels of the thin film blending line conveyor.

[0035] (2) Next, an operator starts the flipping section 8 through the button switch on the electronic control system 12 so that the roller conveying section 9 is in a horizontal position; then, the operator uses an electric forklift to push the sheet box 13 to one side of the roller conveying section 9, and the bottom of the sheet box 13 is at the same level as the upper surface of the roller of the roller conveying section 9. At this time, the operator gently pushes the sheet box 13 so that it is sensed by the first induction switch 15, which triggers the PLC program to start the roller conveying section 9 to complete the process of pushing the sheet box 13 forward; when the sheet box 13 blocks the second induction switch 151, the PLC program is triggered, the roller conveying section 9 stops, and after a certain time delay, under the action of the air source control section 5 and the electronic control system 12 to control the cylinder 4, the flipping plate 81 starts to realize the slow flipping process to the horizontal state. At this time, the electronic control system 12 controls the flipping plate 81 to always be in the current horizontal state through the PLC program.

[0036] (3) Finally, the operator unpacks the box, uses tools to pry out the sheet 14, and uses tools to push the sheet 14 to the surface of the sheet blending line conveyor belt, thus completing the entire sheet blending process. After one box of sheet blending is completed, the empty sheet box 13 is manually removed, and then the button switch on the electrical control system 12 is activated to start the flipping part 8 so that the roller conveying part 9 is in a horizontal position.

[0037] (4) The subsequent mixing process of the thin film box 13 is the same as above.

[0038] This invention discloses a turning conveyor and method for blending sheet tobacco in the tobacco industry. This semi-automatic sheet blending process greatly reduces the labor intensity of operators. Only one operator needs to use a special tool to push the entire box of sheet 14 onto the surface of the sheet blending line conveyor belt (the rear section of the blending line conveyor belt is equipped with a uniform rake roller to ensure the uniformity of sheet 14 during conveying). The entire blending process is time-saving, labor-saving, uniform, reliable, efficient and safe.

[0039] The above embodiments are illustrative of the present invention and not intended to limit the invention. It is understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A turning conveyor for blending sheet tobacco in the tobacco industry, wherein a sheet blending process is provided after the slicing process of leaf processing segments and before the loosening and rehydration process, comprising a turning conveyor frame (1), traveling wheels (2), a lifting support device (3), a cylinder (4), an air source control unit (5), a buffer block (6), a guide plate (7), a turning unit (8), a turning plate (81), a roller conveyor unit (9), a motor reducer (10), a transmission device (11), an electrical control system (12), a sheet box (13), induction switches (15, 151), and a bearing seat (16), wherein the frame comprises an upper frame and a lower frame; characterized in that: The lower frame is equipped with multiple traveling wheels, multiple lifting support devices, and cylinders, while the upper frame is equipped with multiple buffer blocks. The tilting section includes a tilting plate, a roller conveyor, cylinders, and guide plates. The tilting plate is rotatably mounted on the upper frame via bearing seats on both sides. The upper end of the cylinder is hinged to the bottom of the tilting plate, and the lower end of the cylinder is hinged to the cylinder mounting seat. The cylinder mounting seat is mounted on the lower frame. The tilting plate is L-shaped. The roller conveyor is fixed at the first end of the tilting plate. The roller conveyor includes multiple rollers, a transmission device, and multiple inductive switches. The multiple inductive switches include a first inductive switch (15) and a second inductive switch (151). The transmission device includes a motor reducer and a sprocket and chain drive assembly. The inductive switches and the transmission device are mounted on the tilting plate. At the first end of the rotating plate, multiple guide plates are set at the second end of the tilting plate. The motor reducer is connected to multiple rollers through a sprocket and chain transmission assembly. The air source control unit is connected to the cylinder. The air source control unit includes a filter pressure regulating valve and a solenoid valve. The electrical control system is electrically connected to the induction switch, motor reducer, and solenoid valve at the first end of the "L"-shaped tilting plate. The induction switch is set at the first end of the tilting plate. Under the action of the electrical control system, it realizes the start and stop of the roller conveyor, that is, the position control of the sheet box. Under the action of the electrical control system, the induction switch controls the solenoid valve on the air source control unit through the PLC program. That is, after the sheet box reaches the appropriate position, the roller conveyor stops rotating. After a set time delay, the tilting plate starts to tilt.

2. A turning conveyor for blending sheet tobacco products in the tobacco industry as described in claim 1, characterized in that, After the leaf slicing process and before the loosening and rehydration process, a thin-flake blending process is set up. The flipping conveyor is set on one side of the thin-flake blending line. The thin-flake box is pushed horizontally to the roller conveyor section by an electric forklift. After the box is opened manually and the switch is turned on, the thin-flake box is automatically flipped and poured onto the horizontal platform of the flipping plate. Then, the operator manually pushes the scattered thin flakes onto the conveyor belt of the thin-flake blending line.

3. A turning conveyor for blending sheet tobacco products in the tobacco industry as described in claim 2, characterized in that, Four lifting support devices are used to support the frame after it is aligned with the sheet mixing line. The flipping section is used to flip the sheet box from a vertical position to a horizontal position after it is opened. The multiple roller design facilitates the smooth transport of the sheet box. The cylinder is used to realize the flipping action of the flipping section between the horizontal and vertical positions.

4. A turning conveyor for blending sheet tobacco products in the tobacco industry as described in claim 3, characterized in that, The flip plate has an "L" shaped design, and two guide plates are provided on its second end surface to prevent the scattered flakes from falling to the ground when they are manually pushed.

5. A turning conveyor for blending sheet tobacco products in the tobacco industry as described in claim 1, characterized in that, The cylinder has throttle valves at both ends, which, under the control of the air source control unit, enable the tilting speed of the tilting part to be adjusted between the horizontal and vertical positions. The cylinder is driven by two cylinders.

6. A control method for a reversing conveyor used in tobacco sheet blending, comprising a reversing conveyor as described in claim 1 or 5, comprising: S1: First, push the tilting conveyor frame (1) to the appropriate position according to the site layout diagram, then lower the lifting support device (3) and adjust it to be level. At this time, the horizontal platform surface of the tilting plate (81) is just flush with the surface of the thin film blending line conveyor belt, and the constricted part of the guide plate (7) is just seamlessly connected with the side wall panels of the thin film blending line conveyor. S2: Next, an operator starts the flipping unit (8) through the button switch on the electronic control system (12) so that the roller conveying unit (9) is in a horizontal position; then, the operator uses an electric forklift to push the sheet box (13) to one side of the roller conveying unit, and the bottom of the sheet box is at the same level as the upper surface of the roller of the roller conveying unit. At this time, the operator gently pushes the sheet box so that it is sensed by the first induction switch (15), which triggers the PLC program to start the roller conveying unit to complete the process of pushing the sheet box forward; when the sheet box blocks the second induction switch (151), the PLC program is triggered, the roller conveying unit stops, and after a certain time delay, under the action of the air source control unit and the electronic control system cooperating to control the cylinder action, the flipping plate starts to realize the slow flipping process to the horizontal state. At this time, the electronic control system controls the flipping plate to always be in the current horizontal state through the PLC program. S3: Finally, the operator unpacks the box, uses tools to pry out the thin film (14), and uses tools to push the thin film to the surface of the thin film blending line conveyor belt, thus completing the entire thin film blending process. After one box of thin films is blended, the empty thin film box is manually removed, and then the button switch on the electrical control system is activated to start the flipping part so that the roller conveyor part is in a horizontal position. S4: The subsequent thin film box (13) mixing process is the same as above.

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