A tobacco bale slitting assembly and method

Abstract

The present application relates to the field of cigarette processing technology, and provides a tobacco block cutting and combining system and method, which comprises a belt conveyor, a chain conveyor, a liftable roller conveyor, a tobacco block push plate assembly, a rotatable rack, a cutting knife support frame assembly, a cutting knife support frame lifting assembly, a tobacco slice push plate assembly, a rotatable belt conveyor and an electric control system, etc.; after being unpacked, the tobacco block is conveyed to the liftable roller conveyor through the belt conveyor and the chain conveyor, and then is cut by the cutting knife on the cutting knife support frame driven by the rotatable rack, and is conveyed to the rotatable belt conveyor, after being cut, the tobacco slice is conveyed to the subsequent movable belt conveyor to be packed and bundled, and meanwhile, the tobacco slice formula information is pasted, and the cutting and combining of the tobacco block are completed. Through the present application, the leaf group formula combination design can be arbitrarily performed, which lays a solid foundation for improving the product design level and the product quality stability control.

Description

Technical Field

[0001] This invention relates to the field of cigarette processing technology, and in particular to a cigarette block cutting and assembly system and method. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] The development of Chinese-style cigarettes has propelled the industry's product design to a new level, with a significant increase in the production and sales of premium cigarettes, dominating the cigarette industry's growth. The "multi-regional, multi-grade, small-proportion" formula design concept has been fully integrated into the entire product design process, serving as a crucial prerequisite for improving product design standards, ensuring stable product quality, and achieving sustainable development. Tobacco leaf raw materials are the foundation of product leaf blend design. Since tobacco leaf raw materials are agricultural products, the quality of raw materials purchased each year fluctuates due to climate change, field management, local interests, and especially the processing methods for leaf threshing and re-drying, making it impossible to guarantee a consistently stable supply year after year. Industrial enterprises invest considerable effort annually in controlling the stability and consistency of tobacco leaf raw materials to ensure stable product formulas, even incurring significant costs for large-scale selection, purification, and uniform blending to address the issue of consistent raw material quality, leading to a year-on-year increase in raw material processing costs. The substantial annual costs for raw material selection, processing, blending, and re-drying significantly increase product costs, while the quality still fails to meet product standards, severely hindering the healthy development of industrial enterprises. Summary of the Invention

[0004] To address the technical problems mentioned above, this invention provides a tobacco block cutting and assembly system and method. This invention allows for arbitrary design of leaf pack formulations, laying a solid foundation for improving product design and controlling product quality stability.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] The first aspect of the present invention provides a tobacco block cutting and assembly system.

[0007] A tobacco block slitting and assembly system includes a chain conveyor mechanism, a slitting knife mechanism, a rotatable belt conveyor mechanism, and an electrical control system (30);

[0008] A chain conveyor mechanism is used to receive the smoke blocks conveyed by the belt conveyor (2), and a position sensor (7) is provided on it to upload the acquired smoke block position information to the electronic control system (30);

[0009] The slitting mechanism includes a slitting knife assembly, a rotatable frame (11), and a slide rail (12). The slitting knife assembly is mounted on the rotatable frame (11), which rotates or moves up and down on the slide rail (12). A height sensor (28) is provided on the rotatable frame (11) to upload the acquired tobacco block height data to the electronic control system (30). The slitting knife assembly is used to cut the tobacco blocks and convey the cut tobacco sheets to the rotatable belt conveyor mechanism under the fixation of the tobacco sheet pusher plate (14).

[0010] The electronic control system (30) controls the rotatable frame (11) to move to the designated position according to the position information of the tobacco block; and calculates the cutting height of the tobacco block according to the height data of the tobacco block and the input command, so as to control the cutting blade assembly to cut the tobacco block.

[0011] A rotatable belt conveyor mechanism is used to receive tobacco sheets conveyed by the slitting mechanism.

[0012] Furthermore, the slitting blade assembly includes a slitting blade support frame lifting belt (26) and a slitting blade support frame lifting slide (29). The slitting blade support frame lifting belt (26) slides on the slitting blade support frame lifting slide (29). A slitting blade support frame (9) and a slitting blade cylinder (10) are installed on the slitting blade support frame lifting belt (26) to drive the slitting blade support frame (9) and the slitting blade cylinder (10) to slide up and down. The slitting blade cylinder (10) is used to control the sliding direction of the slitting blade (8) on the slitting blade support frame (9) along the slitting blade slide (13).

[0013] Furthermore, the tobacco sheet pusher plate (14) is positioned above the slitting knife (8), and the movement direction of the tobacco sheet pusher plate (14) is parallel to that of the slitting knife (8). It is controlled by a small cylinder (15) for the tobacco sheet pusher plate, which is mounted on a rotatable frame (11).

[0014] Furthermore, the slitting cylinder (10) pushes the slitting blade (8) forward. When the slitting blade (8) is inserted horizontally into the tobacco block (1) and approaches the tobacco block pusher plate (5) on the chain conveyor (3), the small cylinder (15) of the tobacco sheet pusher plate on the slitting blade (8) is activated, pushing the tobacco sheet pusher plate (14) to press the slitting tobacco sheet; the lifting belt (26) of the slitting blade support frame drives the slitting blade support frame (9) to move upward, driving the slitting tobacco sheet on the slitting blade (8) to move upward, and the slitting tobacco sheet is separated from the original tobacco block (1). The slitting cylinder (10) retracts and resets, driving the slitting tobacco sheet to move backward. During this period, the tobacco sheet pusher plate (14) on the slitting blade (8) moves synchronously and presses the tobacco sheet.

[0015] Furthermore, the chain conveying mechanism includes a chain conveyor (3), inside which is installed a vertically movable lifting roller conveyor (6), the chain conveyor (3) is used to convey the smoke block to the lifting roller conveyor (6); the bottom of the lifting roller conveyor (6) is equipped with a weighing scale and a movable receiving tray.

[0016] Furthermore, a fixed baffle and a position sensor (7) are installed on one side of the chain conveyor (3); a smoke block pusher (5) and a pusher cylinder (4) are provided on the other side of the chain conveyor (3). The pusher cylinder (4) is used to control the movement direction of the smoke block pusher (5) so that the smoke block (1) is fixed between the smoke block pusher (5) and the fixed baffle before it is cut.

[0017] Furthermore, the rotatable belt conveyor mechanism includes several rotatable belt conveyors. Each rotatable belt conveyor is provided with a right baffle and a left movable baffle arranged in parallel, as well as a push plate arranged perpendicular to the right baffle. The movement direction of the left movable baffle is controlled by a cylinder for the left baffle, and the movement direction of the push plate is controlled by a cylinder for the push plate.

[0018] Furthermore, the slitting mechanism also includes a lifting motor (27) for driving the rotatable frame (11) to move.

[0019] Furthermore, the rotatable belt conveyor conveys the tobacco sheets to the movable belt conveyor (25).

[0020] A second aspect of the present invention provides a method for cutting and assembling tobacco blocks.

[0021] A method for cutting and assembling tobacco blocks, applied to the tobacco block cutting and assembling system described in the first aspect, includes:

[0022] Obtain the input command for the desired segmentation ratio;

[0023] Before the smoke block (1) is conveyed to the chain conveyor (3), the liftable roller conveyor (6) is lowered to its lowest position;

[0024] The cigarette block (1) is conveyed to the chain conveyor (3) via the belt conveyor (2). After the cigarette block (1) is in place, the liftable roller conveyor (6) automatically rises, and its top presses against the bottom of the cigarette block (1) and lifts the cigarette block (1). The cigarette block (1) falls onto the liftable roller conveyor (6). After the cigarette block (1) is positioned, the push plate cylinder (4) on the chain conveyor (3) pushes the cigarette block push plate (5) to press the cigarette block (1) tightly, ready for cutting.

[0025] The electronic control system (30) calculates the cutting height of the tobacco block (1) through the height sensor (28). The rotatable frame (11) rotates to drive the cutting blade (8) to cut the tobacco block (1) and transport the cut tobacco sheet to the rotatable belt conveyor. The weighing scale at the bottom of the liftable roller conveyor (6) weighs the cut tobacco sheet. According to the input command, all the tobacco sheets are cut and transported to different rotatable belt conveyors in sequence.

[0026] After the tobacco block is cut, the total weight of the tobacco sheets on all the rotating belt conveyors is counted. After meeting the design requirements, all the rotating belt conveyors rotate 180° and transport the tobacco sheets to the movable belt conveyor (25) for subsequent packing and packaging of tobacco blocks.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] This invention provides a tobacco block slitting and assembly system, comprising: a belt conveyor, a chain conveyor, a liftable roller conveyor, a tobacco block pusher assembly, a rotatable frame, a slitting knife support frame assembly, a slitting knife support frame lifting assembly, a tobacco sheet pusher assembly, a rotatable belt conveyor, and an electrical control system, etc. After unpacking, the tobacco blocks (each single-grade formulation unit is 200kg) are conveyed to the liftable roller conveyor via the belt conveyor and chain conveyor. The rotatable frame then drives the slitting knife on the slitting knife support frame to slit the tobacco blocks (the smallest single-grade formulation unit is 50kg). The slitted tobacco sheets are then conveyed to the rotatable belt conveyor. Once the slitted tobacco sheets reach 200kg / bag, they are conveyed to a subsequent movable belt conveyor for packing and bundling. At the same time, tobacco sheet formulation information is affixed, completing the tobacco block slitting and assembly. Using the system described in this invention, tobacco blocks (200kg per single-grade formulation unit) can be re-cut and recombined to realize the formulation design concept of "multi-region, multi-grade, small proportion (50kg per single-grade formulation unit)" throughout the entire product design, thereby improving the product design level, ensuring stable product quality, and achieving sustainable development.

[0029] 2. This invention can design arbitrary leaf group formula combinations across years, provinces and regions, parts and types, based on the inherent quality and physicochemical index requirements of product formulas. It is especially suitable for handling long-term inventory, small quantities and zero-tail materials. It expands the scope of product formula maintenance and balanced raw material use, and plays an important guiding role in the targeted layout, procurement, use, inventory structure, raw material revitalization and reduction of inventory capital occupation of raw materials.

[0030] 3. This invention completes the matching and combination of blade modules before feeding materials into production, greatly improving the design space and matching freedom. It is simple to operate, highly efficient, and can be adjusted in a timely manner according to changes in the product blade formula without affecting production organization. Attached Figure Description

[0031] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0032] Figure 1 This is a structural diagram of the tobacco block cutting and assembly system shown in this invention;

[0033] Figure 2 This is a partially enlarged view of the tobacco block cutting and assembly system shown in this invention;

[0034] Figure 3 This is the AA cross-sectional view shown in this invention;

[0035] In the diagram: 1. Tobacco block; 2. Belt conveyor; 3. Chain conveyor; 4. Pusher cylinder; 5. Tobacco block pusher plate; 6. Liftable roller conveyor; 7. Position sensor; 8. Slitting knife; 9. Slitting knife support frame; 10. Slitting knife cylinder; 11. Rotatable frame; 12. Slide rail; 13. Slitting knife slide rail; 14. Tobacco sheet pusher plate; 15. Tobacco sheet pusher plate small cylinder; 16. First rotatable belt conveyor; 17. Right baffle of rotatable belt conveyor; 18. Second rotatable belt conveyor. Machine; 19. Third rotatable belt conveyor; 20. Fourth rotatable belt conveyor; 21. Left baffle cylinder of the first rotatable belt conveyor; 22. Left movable baffle of the first rotatable belt conveyor; 23. Push plate of the first rotatable belt conveyor; 24. Push plate cylinder of the first rotatable belt conveyor; 25. Movable belt conveyor; 26. Slitting knife support frame lifting belt; 27. Lifting motor; 28. Height sensor; 29. ​​Slitting knife support frame lifting slide; 30. Electrical control system. Detailed Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0037] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0038] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0039] To further address the issue of modular raw material combination, reduce the costs of leaf trimming and re-drying, and meet the requirements of formula design across years, provinces, regions, grades, and types, thereby realizing the product formula design concept of "multi-regional, multi-grade, and small-proportion," this invention provides a tobacco block cutting and combination system and method. Utilizing automatic unpacking technology for tobacco raw materials, this process is performed after the raw materials enter the industrial enterprise but before production. Single-grade raw materials are unpacked, uniformly cut, and then recombined with other uniformly cut tobacco leaves to form new raw material combination boxes. This allows for combinations of four grades. This method requires less investment, is faster, simpler to operate, and does not require consideration of raw material conditions. Raw materials can be freely combined according to product needs at any time. This not only effectively solves the problem of modular raw material processing that plagues enterprises but also has significant implications for improving product design levels, ensuring stable product quality, and achieving sustainable development.

[0040] Example 1

[0041] like Figure 1 , Figure 2 , Figure 3 As shown, this embodiment provides a tobacco block slitting assembly system, including: a belt conveyor (2), a chain conveyor (3), a liftable roller conveyor (6), a tobacco block pusher assembly, a rotatable frame (11), a slitting knife support frame assembly, a slitting knife support frame lifting assembly, a tobacco sheet pusher assembly, a lifting motor (27), a rotatable belt conveyor, and an electrical control system (30).

[0042] The chain conveyor (3) is connected to the belt conveyor (2). The cigarette block (1) after being opened is transported to the chain conveyor (3) via the belt conveyor (2) for cutting. A cigarette block pusher plate (5) is installed on one side of the chain conveyor (3), and a position sensor (7) is installed on the other side. A liftable roller conveyor (6) is installed inside the chain conveyor (3).

[0043] The liftable roller conveyor (6) is installed inside the chain conveyor (3) and can move up and down; a static scale and a movable receiving tray are installed at the bottom of the liftable roller conveyor (6).

[0044] The rotatable frame (11) can rotate 180° and is equipped with a slitting knife support frame (9), a slitting knife support frame lifting device and a height sensor (28); the bottom is equipped with pulleys that can move back and forth on the slide rail.

[0045] The slitting knife support frame (9) is mounted on the rotatable frame (11) via the slitting knife slide (13) and moves up and down via the slitting knife support frame lifting belt (26). The slitting knife support frame (9) is equipped with a slitting knife (8), a slitting knife cylinder (10), a slitting knife slide (13), a tobacco sheet push plate (14), and a tobacco sheet push plate small cylinder (15).

[0046] The liftable roller conveyor (6) can rotate 180°, with a fixed baffle installed on the right side and a pusher plate installed on the left side; a position sensor (7) is installed on one side of the front feed end, and a smoke block pusher plate (5) is installed at the rear end.

[0047] The movable belt conveyor (25) overlaps with the rotatable belt conveyors (16, 18, 19, 20) and can move left and right. The movable belt conveyor (25) rotates clockwise to convey materials to the right.

[0048] This invention mainly includes tobacco block conveying, metering and cutting, automatic tray loading, manual adjustment of tobacco block weight, automatic stacking and combination of tobacco blocks, and an electronic and computer management system. The smallest formulation unit is 50 kg, and the tobacco sheet combination can be in four forms: 50+50+50+50, 100+100, 100+50+50, and 150+50, with the total combined weight still being 200 kg. The following are detailed descriptions through several embodiments:

[0049] Example 2

[0050] In this embodiment, the smoke block weighs 200 kg ± 2 kg, divided into 4 equal parts, each weighing approximately 50 kg ± 0.5 kg. Figure 1 , Figure 2 , Figure 3 As shown:

[0051] Before the smoke block 1 is conveyed to the chain conveyor 3, the liftable roller conveyor 6 is lowered to the lowest position, that is, the height of the liftable roller conveyor 6 is lower than the top of the chain conveyor 3.

[0052] After the cigarette block 1 is unpacked, it is conveyed to the chain conveyor 3 via the belt conveyor 2. After the cigarette block 1 is in place, the liftable roller conveyor 6 automatically rises, and its top presses against the bottom of the cigarette block and lifts the cigarette block 1. The cigarette block 1 falls onto the liftable roller conveyor 6. The bottom of the cigarette block 1 is 100mm away from the top of the chain conveyor 3. The weighing scale at the bottom of the liftable roller conveyor 6 can accurately weigh the cigarette block. After the cigarette block 1 is positioned, the push plate cylinder 4 on the chain conveyor 3 pushes the cigarette block push plate 5 to press the cigarette block 1, ready for cutting.

[0053] The rotatable frame 11 slides to the position of the tobacco block and rotates to align the slitting blade support frame 9 with the position of the tobacco block 1. The electronic control system 30 calculates the slitting height of the tobacco block 1 through the height sensor 28. The lifting belt 26 of the slitting blade support frame drives the slitting blade 8 to move up and down and accurately align with the position of the tobacco block 1, ready to slitting the tobacco block 1.

[0054] The slitting blade cylinder 10 pushes the slitting blade 8 forward. When the slitting blade 8 is horizontally inserted into the tobacco block 1 and approaches the tobacco block pusher plate 5 on the chain conveyor 3, the tobacco sheet pusher plate cylinder 15 on the slitting blade 8 is activated, pushing the tobacco sheet pusher plate 14 to press the slitting tobacco sheet.

[0055] The lifting belt 26 of the slitting knife support frame drives the slitting knife support frame 9 to move upward, which in turn moves the slit tobacco sheet on the slitting knife 8 upward. The slit tobacco sheet separates from the original tobacco block 1, and the slitting knife cylinder 10 retracts and resets, causing the slit tobacco sheet to move backward. During this process, the tobacco sheet push plate 14 on the slitting knife 8 moves synchronously and presses the tobacco sheet.

[0056] The rotatable frame 11 rotates 90° counterclockwise, and the slit tobacco sheets synchronously enter the right position. The rotatable frame 11 moves on the slide rail 12. When the position sensor 7 on the right side of the first rotatable belt conveyor 17 detects the tobacco sheets, the slitting cylinder 10 pushes the slitting blade 8 forward. During this process, the tobacco sheet pusher plate 14 on the slitting blade 8 presses the tobacco sheets and moves synchronously. The tobacco sheets on the slitting blade 8 are horizontally inserted into the interior of the first rotatable belt conveyor 16. When the tobacco sheets contact the pusher plate 23 of the first rotatable belt conveyor, the slitting cylinder 10 stops moving, and the left pusher plate 22 of the first rotatable belt conveyor pushes the tobacco sheets and the slitting blade 8. Moving along the slitting knife slide 13, when the tobacco sheet contacts the right baffle 17 of the first rotatable belt conveyor, the left push plate 22 of the first rotatable belt conveyor stops pushing, and the lifting belt 26 of the slitting knife support frame drives the slitting knife support frame 9 to move downward. When the slitting knife 8 contacts the bottom of the first rotatable belt conveyor 16, the lifting belt 26 of the slitting knife support frame stops moving, the slitting knife cylinder 10 retracts, and the tobacco sheet on the slitting knife falls onto the first rotatable belt conveyor 16 under the obstruction of the tobacco sheet push plate 14. After the slitting knife cylinder 10 has fully retracted, the small cylinder 15 of the tobacco sheet push plate retracts, driving the tobacco sheet push plate 14 to reset.

[0057] After the rotatable frame 11 returns to the tobacco sheet cutting position from the slide rail 12, it rotates 90° counterclockwise to perform the next tobacco sheet cutting. This process is repeated, with the tobacco sheets cut twice entering the second rotatable belt conveyor 18, and the tobacco sheets cut three times entering the third rotatable belt conveyor 19. During tobacco sheet cutting, the electrical control system continuously calculates the weight of each sheet using a weighing scale at the bottom of the liftable roller conveyor. When the weight of the cut tobacco sheet exceeds the design value ±0.5 kg, the system alerts the operator to replenish the material. After replenishment, the next cutting operation is performed.

[0058] Finally, when the 1 / 4 of the tobacco sheet remains, as the slitting knife moves to the top area of ​​the tobacco block and the chain conveyor 3, the liftable roller conveyor 6 starts, and at the same time, the pusher cylinder 4 installed on the chain conveyor 3 starts. The tobacco block pusher 5 pushes the tobacco block to move and pushes the tobacco block onto the slitting knife 8. The slitting knife support frame 9 drives the remaining 1 / 4 of the tobacco sheet to move and transports the tobacco sheet to the fourth rotatable belt conveyor 20, completing the splitting of the entire tobacco block.

[0059] The next pack of cigarette blocks is split open again. The cigarette blocks are sliced ​​by the slitting knife 8 on the belt conveyor 2, chain conveyor 3, liftable roller conveyor 6 and rotatable frame 11, and then conveyed to the first rotatable belt conveyor 16, the second rotatable belt conveyor 18, the third rotatable belt conveyor 19 and the fourth rotatable belt conveyor 20 to complete the slitting and packaging of the whole cigarette block.

[0060] After all four packs of cigarette blocks have been cut, the movable belt conveyor 25 moves to the right to provide space for the first rotatable belt conveyor 16 to rotate. The first rotatable belt conveyor 16 rotates 180°, and the movable belt conveyor 25 moves to the left. The first rotatable belt conveyor 16 starts and transports the recut cigarette blocks to the movable belt conveyor 25, which then sends the cigarette blocks to the next process for boxing and packaging.

[0061] The second rotatable belt conveyor 18, the third rotatable belt conveyor 19, and the fourth rotatable belt conveyor 20 use the same action to transport the cigarette blocks to the movable belt conveyor for the next process of packing and packaging.

[0062] The electronic control system 30 records the tobacco grade information of each tobacco block, prints it out, and pastes it onto the sealed tobacco box to complete the cutting and assembly of the entire tobacco block.

[0063] Example 3

[0064] In this embodiment, the smoke block weighs 200 kg ± 2 kg, divided into two pieces. The first piece weighs approximately 50 kg ± 0.5 kg, and the second piece weighs approximately 350 kg ± 1.5 kg. Figure 1 , Figure 2 , Figure 3 As shown:

[0065] Before the tobacco block is cut, the liftable roller conveyor 6 is lowered so that its height is lower than the top of the chain conveyor 3.

[0066] After the cigarette block 1 is unpacked, it is conveyed to the chain conveyor 3 via the belt conveyor 2. After the cigarette block 1 is in place, the liftable roller conveyor 6 automatically rises and lifts the cigarette block 1. The cigarette block 1 falls onto the liftable roller conveyor 6. The weighing scale at the bottom of the liftable roller conveyor 6 can accurately weigh the cigarette block. The push plate cylinder 4 on the chain conveyor 3 pushes the cigarette block push plate 5 to press the cigarette block 1, ready for cutting.

[0067] The rotatable frame 11 slides to the position of the tobacco block and rotates to align the slitting blade support frame 9 with the tobacco block 1. The electronic control system 30 calculates the slitting height of the first tobacco block 1 through the height sensor 28. The lifting belt 26 of the slitting blade support frame drives the slitting blade 8 to move up and down and accurately align with the position of the tobacco block 1, ready to slitting the tobacco block 1.

[0068] The slitting cylinder 10 pushes the slitting knife 8 forward. When the slitting knife 8 is inserted horizontally into the tobacco sheet 1 and approaches the tobacco block push plate 5 on the chain conveyor 3, the slitting cylinder 10 stops pushing and the tobacco sheet push plate small cylinder 15 starts, pushing the tobacco sheet push plate 14 to press the slitting tobacco sheet.

[0069] The lifting belt 26 of the slitting knife support frame drives the slitting knife support frame 9 to move upward, causing the slit tobacco sheets on the slitting knife 8 to separate from the original tobacco block 1. The slitting knife cylinder 10 retracts and resets, causing the slit tobacco sheets to move backward. During this process, the tobacco sheet push plate 14 on the slitting knife 8 moves synchronously and presses the tobacco sheets.

[0070] The rotatable frame 11 rotates 90° counterclockwise and moves on the slide rail 12. When the position sensor on the right baffle 17 of the first rotatable belt conveyor detects the tobacco sheet, the slitting cylinder 10 pushes the slitting blade 8 forward. During this time, the tobacco sheet pusher plate 14 on the slitting blade 8 presses the tobacco sheet and moves synchronously. The tobacco sheet on the slitting blade 8 is inserted horizontally into the interior of the first rotatable belt conveyor 16. When the tobacco sheet contacts the pusher plate 23 of the first rotatable belt conveyor, the slitting cylinder 10 stops moving. The left pusher plate 22 of the first rotatable belt conveyor pushes the tobacco sheet and the slitting blade 8 along the slitting blade slide rail 1. 3. When the tobacco sheet contacts the right baffle 17 of the first rotatable belt conveyor, the left push plate 22 of the first rotatable belt conveyor stops pushing. The lifting belt 26 of the slitting knife support frame drives the slitting knife support frame 9 to move downward. When the slitting knife 8 contacts the bottom of the first rotatable belt conveyor 16, the lifting belt 26 of the slitting knife support frame stops moving, the slitting knife cylinder 10 retracts, and the tobacco sheet on the slitting knife falls onto the first rotatable belt conveyor 16 under the obstruction of the tobacco sheet push plate 14. After the slitting knife cylinder 10 retracts completely, the small cylinder 15 of the tobacco sheet push plate retracts, driving the tobacco sheet push plate 14 to reset.

[0071] After the rotatable frame 11 returns to the tobacco sheet cutting position from the slide rail 12, it rotates 90° counterclockwise to perform the next tobacco block cutting. During this period, the electronic control system calculates the weight of each sheet through the weighing scale at the bottom of the liftable roller conveyor. When the weight of the tobacco block after cutting exceeds the design value ±0.5 kg, the system reminds the operator to replenish the material. After the operator replenishes the material, the next cutting operation is carried out.

[0072] When the slitting blade 8 moves to the top area of ​​the tobacco block and the chain conveyor 3, the liftable roller conveyor 6 starts, and at the same time, the push plate cylinder 4 installed on the chain conveyor 3 starts. The tobacco block push plate 5 pushes the tobacco block to move and pushes the tobacco block onto the slitting blade 8. The slitting blade support frame 9 drives the remaining 1 / 2 tobacco sheet to move and transports the tobacco sheet to the second rotatable belt conveyor 18, completing the splitting of the entire tobacco block.

[0073] The next pack of tobacco blocks is split open again. The tobacco blocks are sliced ​​by the slitting knife 8 on the belt conveyor 2, chain conveyor 3, liftable roller conveyor 6 and rotatable frame 11. One-quarter of the tobacco slices are then conveyed to the second rotatable belt conveyor 18. The remaining three-quarters of the tobacco slices are then conveyed to the first rotatable belt conveyor 16, thus completing the slitting and packaging of the second tobacco block.

[0074] After all two packs of cigarette blocks have been cut, the movable belt conveyor 25 moves to the right to provide space for the first rotatable belt conveyor 16 to rotate. The first rotatable belt conveyor 16 rotates 180°, and the movable belt conveyor 25 moves to the left. The first rotatable belt conveyor 16 starts and transports the recut cigarette blocks to the movable belt conveyor 25, which then sends the cigarette blocks to the next process for boxing and packaging. The second rotatable belt conveyor uses the same action to transport the cigarette blocks to the movable belt conveyor for the next process of boxing and packaging.

[0075] The electronic control system 30 records the tobacco grade information of each tobacco block, prints it out, and pastes it onto the sealed tobacco box to complete the cutting and assembly of the entire tobacco block.

[0076] Example 4

[0077] In this embodiment, the smoke block weighs 200 kg ± 2 kg, divided into two equal parts, each weighing approximately 100 kg ± 1.0 kg. Figure 1 , Figure 2 , Figure 3 As shown:

[0078] The specific cutting method is the same as in Example 3:

[0079] After being unpacked, the cigarette block 1 is conveyed to the chain conveyor 3 via the belt conveyor 2. The liftable roller conveyor 6 automatically rises and lifts the cigarette block 1. The weighing scale at the bottom of the liftable roller conveyor 6 accurately weighs the cigarette block. The push plate cylinder 4 on the chain conveyor 3 pushes the cigarette block push plate 5 to press the cigarette block 1, ready for cutting.

[0080] The rotatable frame 11 slides to the position of the tobacco block and rotates to align the slitting blade support frame 9 with the tobacco block 1. The electronic control system 30 calculates the slitting height of the first tobacco block 1 through the height sensor 28. The lifting belt 26 of the slitting blade support frame drives the slitting blade 8 to move up and down and accurately align with the position of the tobacco block 1 to slitting the tobacco block 1.

[0081] The slitting cylinder 10 pushes the slitting blade 8 forward, and the slitting blade 8 is horizontally inserted into the tobacco sheet 1. The tobacco sheet pusher small cylinder 15 is activated, pushing the tobacco sheet pusher 14 to press the slitting tobacco sheet.

[0082] The lifting belt 26 of the slitting knife support frame drives the slitting knife support frame 9 to move upward, which in turn drives the slit tobacco sheets on the slitting knife 8 to move. During this process, the tobacco sheet push plate 14 on the slitting knife 8 moves synchronously and presses the tobacco sheets.

[0083] The rotatable frame 11 rotates 90° counterclockwise and moves on the slide rail 12 to place the slit tobacco sheets onto the first rotatable belt conveyor.

[0084] After the rotatable frame 11 returns to the tobacco sheet cutting position from the slide rail 12, it rotates 90° counterclockwise to perform the next tobacco block cutting. During this period, the electronic control system calculates the weight of each sheet through the weighing scale at the bottom of the liftable roller conveyor. When the weight of the tobacco block after cutting exceeds the design value ±1.0 kg, the system reminds the operator to replenish the material. After the operator replenishes the material, the next cutting operation is carried out.

[0085] When the slitting blade 8 moves to the top area of ​​the tobacco block and the chain conveyor 3, the liftable roller conveyor 6 starts, and at the same time, the push plate cylinder 4 installed on the chain conveyor 3 starts. The tobacco block push plate 5 pushes the tobacco block to move and pushes the tobacco block onto the slitting blade 8. The slitting blade support frame 9 drives the remaining 1 / 2 tobacco sheet to move and transports the tobacco sheet to the second rotatable belt conveyor 18, completing the splitting of the entire tobacco block.

[0086] The next pack of cigarettes is split open again. The cigarettes are sliced ​​by the slitting knife 8 on the belt conveyor 2, chain conveyor 3, liftable roller conveyor 6 and rotatable frame 11. Half of the cigarettes are then conveyed to the second rotatable belt conveyor 18. The remaining half of the cigarettes is then conveyed to the first rotatable belt conveyor 16, thus completing the slitting and packaging of the second pack of cigarettes.

[0087] After all two packs of cigarette blocks have been cut, the movable belt conveyor 25 moves to the right to provide space for the first rotatable belt conveyor 16 to rotate. The first rotatable belt conveyor 16 rotates 180°, and the movable belt conveyor 25 moves to the left. The first rotatable belt conveyor 16 starts and transports the recut cigarette blocks to the movable belt conveyor 25, which then sends the cigarette blocks to the next process for boxing and packaging. The second rotatable belt conveyor uses the same action to transport the cigarette blocks to the movable belt conveyor for the next process of boxing and packaging.

[0088] The electronic control system 30 records the tobacco grade information of each tobacco block, prints it out, and pastes it onto the sealed tobacco box to complete the cutting and assembly of the entire tobacco block.

[0089] The product formulation design of this invention can be carried out in accordance with the concept of "multiple regions, multiple grades, and small proportions (the minimum single formulation grade is reduced from 200 kg to 50 kg)," allowing for arbitrary combination design of leaf group formulations, thus laying a solid foundation for improving product design level and controlling product quality stability.

[0090] Example 5

[0091] This embodiment provides a method for cutting and assembling tobacco blocks, applied to the tobacco block cutting and assembly system described in Embodiment 1, Embodiment 2, Embodiment 3, or Embodiment 4, including:

[0092] Before the smoke block 1 is conveyed to the chain conveyor 3, the liftable roller conveyor 6 is lowered to the lowest position, that is, the height of the liftable roller conveyor 6 is lower than the top of the chain conveyor 3.

[0093] After the cigarette block 1 is unpacked, it is conveyed to the chain conveyor 3 via the belt conveyor 2. After the cigarette block 1 is in place, the liftable roller conveyor 6 automatically rises, and its top presses against the bottom of the cigarette block 1 and lifts the cigarette block 1. The cigarette block 1 falls onto the liftable roller conveyor 6, and the weighing scale at the bottom of the liftable roller conveyor 6 accurately weighs the cigarette block. After the cigarette block 1 is positioned, the push plate cylinder 4 on the chain conveyor 3 pushes the cigarette block push plate 5 to press the cigarette block 1 tightly, ready for cutting.

[0094] The electronic control system 30 calculates the cutting height of the tobacco block 1 using the height sensor 28. The rotatable frame 11 rotates, driving the slitting blade 8 to cut the tobacco block 1, and the cut tobacco sheets are conveyed to the first rotatable belt conveyor 16. The weighing scale at the bottom of the liftable roller conveyor 6 accurately measures the weight of the cut tobacco sheets. If the cutting weight exceeds the design value, the weight is adjusted manually. All tobacco blocks are divided into 4 pieces, which are then conveyed sequentially to the first rotatable belt conveyor 16, the second rotatable belt conveyor 18, the third rotatable belt conveyor 19, and the fourth rotatable belt conveyor 20 to complete the cutting of one tobacco block. After the four tobacco blocks are cut, once the tobacco blocks on the first rotatable belt conveyor 16, the second rotatable belt conveyor 18, the third rotatable belt conveyor 19, and the fourth rotatable belt conveyor 20 reach the design value of 200 kg, the first rotatable belt conveyor 16, the second rotatable belt conveyor 18, the third rotatable belt conveyor 19, and the fourth rotatable belt conveyor 20 all rotate 180° to transport the tobacco sheets to the movable belt conveyor 25 for subsequent boxing and packaging of the tobacco blocks.

[0095] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A tobacco block cutting and assembly system, characterized in that, It includes a chain conveyor mechanism, a slitting knife mechanism, a rotatable belt conveyor mechanism, and an electrical control system (30). A chain conveyor mechanism is used to receive the smoke blocks conveyed by the belt conveyor (2), and a position sensor (7) is provided on it to upload the obtained smoke block position information to the electronic control system (30). The slitting mechanism includes a slitting knife assembly, a rotatable frame (11), and a slide rail (12). The slitting knife assembly is mounted on the rotatable frame (11), which moves on the slide rail (12). A height sensor (28) is provided on the rotatable frame (11) to upload the acquired tobacco block height data to the electronic control system (30). The slitting knife assembly is used to cut tobacco blocks and to transport the cut tobacco sheets to the rotatable belt conveyor mechanism under the fixation of the tobacco sheet pusher plate (14). The electronic control system (30) controls the rotatable frame (11) to move to the designated position according to the position information of the tobacco block; and calculates the cutting height of the tobacco block according to the height data of the tobacco block and the input command, so as to control the cutting blade assembly to cut the tobacco block. A rotatable belt conveyor mechanism is used to receive tobacco sheets conveyed by a slitting mechanism; The slitting blade assembly includes a slitting blade support frame lifting belt (26) and a slitting blade support frame lifting slide (29). The slitting blade support frame lifting belt (26) slides on the slitting blade support frame lifting slide (29). A slitting blade support frame (9) and a slitting blade cylinder (10) are installed on the slitting blade support frame lifting belt (26) to drive the slitting blade support frame (9) and the slitting blade cylinder (10) to slide up and down. The slitting blade cylinder (10) is used to control the slitting blade (8) on the slitting blade support frame (9) to move along the sliding direction of the slitting blade slide (13). The chain conveying mechanism includes a chain conveyor (3), inside which is installed a vertically movable roller conveyor (6). The chain conveyor (3) is used to convey the smoke block to the vertically movable roller conveyor (6). The bottom of the vertically movable roller conveyor (6) is equipped with a weighing scale and a movable receiving tray. The slitting cylinder (10) pushes the slitting knife (8) forward. When the slitting knife (8) is inserted horizontally into the tobacco block (1) and approaches the tobacco block pusher plate (5) on the chain conveyor (3), the small cylinder (15) of the tobacco sheet pusher plate on the slitting knife (8) is activated, pushing the tobacco sheet pusher plate (14) to press the slitting tobacco sheet; the lifting belt (26) of the slitting knife support frame drives the slitting knife support frame (9) to move upward, driving the slitting tobacco sheet on the slitting knife (8) to move upward. The slitting tobacco sheet is separated from the original tobacco block (1), the slitting cylinder (10) retracts and resets, driving the slitting tobacco sheet to move backward. During this period, the tobacco sheet pusher plate (14) on the slitting knife (8) moves synchronously and presses the tobacco sheet. The rotatable belt conveyor mechanism includes several rotatable belt conveyors. Each rotatable belt conveyor has a right baffle and a left movable baffle arranged in parallel, as well as a push plate arranged perpendicular to the right baffle. The movement direction of the left movable baffle is controlled by a cylinder for the left baffle, and the movement direction of the push plate is controlled by a cylinder for the push plate.

2. The tobacco block cutting and assembly system according to claim 1, characterized in that, The tobacco sheet pusher plate (14) is positioned above the slitting knife (8). The movement direction of the tobacco sheet pusher plate (14) is parallel to that of the slitting knife (8) and is controlled by a small cylinder (15) for the tobacco sheet pusher plate. The small cylinder (15) for the tobacco sheet pusher plate is mounted on a rotatable frame (11).

3. The tobacco block cutting and assembly system according to claim 1, characterized in that, A fixed baffle and a position sensor (7) are installed on one side of the chain conveyor (3); a smoke block pusher (5) and a pusher cylinder (4) are provided on the other side of the chain conveyor (3). The pusher cylinder (4) is used to control the movement direction of the smoke block pusher (5) so that the smoke block (1) is fixed between the smoke block pusher (5) and the fixed baffle before it is cut.

4. The tobacco block cutting and assembly system according to claim 1, characterized in that, The slitting mechanism also includes a lifting motor (27) for driving the rotatable frame (11) to move.

5. The tobacco block cutting and assembly system according to claim 1, characterized in that, The rotatable belt conveyor conveys the tobacco sheets to the movable belt conveyor (25).

6. A method for cutting and assembling tobacco blocks, characterized in that, The tobacco block cutting and assembly system according to any one of claims 1-5 includes: Obtain the input command for the desired segmentation ratio; Before the smoke block (1) is conveyed to the chain conveyor (3), the liftable roller conveyor (6) is lowered to its lowest position; The cigarette block (1) is conveyed to the chain conveyor (3) via the belt conveyor (2). After the cigarette block (1) is in place, the liftable roller conveyor (6) automatically rises, and its top presses against the bottom of the cigarette block (1) and lifts the cigarette block (1). The cigarette block (1) falls onto the liftable roller conveyor (6). After the cigarette block (1) is positioned, the push plate cylinder (4) on the chain conveyor (3) pushes the cigarette block push plate (5) to press the cigarette block (1) tightly, ready for cutting. The electronic control system (30) calculates the cutting height of the tobacco block (1) through the height sensor (28). The rotatable frame (11) rotates to drive the cutting blade (8) to cut the tobacco block (1) and transport the cut tobacco sheet to the rotatable belt conveyor. The weighing scale at the bottom of the liftable roller conveyor (6) weighs the cut tobacco sheet. According to the input command, all the tobacco sheets are cut and transported to different rotatable belt conveyors in sequence. After the tobacco block is cut, the total weight of the tobacco sheets on all the rotating belt conveyors is counted. After meeting the design requirements, all the rotating belt conveyors are rotated 180° to transport the tobacco sheets to the movable belt conveyor (25) for subsequent packing and packaging of the tobacco blocks.

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