Raw material premixing device for reconstituted tobacco production

Abstract

The invention relates to the technical field of paper-making reconstituted tobacco, in particular to a raw material premixing device for reconstituted tobacco production. The device comprises a box body, a motor is arranged in the center of the top of the box body, an output shaft of the motor is connected with a stirring mechanism and fixedly connected with a first gear, smashing mechanisms are arranged on the two sides of the stirring mechanism and driven by the first gear, a filter plate is arranged between the stirring mechanism and the smashing mechanisms, and a detachable discharging hopper is arranged below the stirring mechanism. And a filter screen is arranged on the blanking hopper. Through cooperation of the motor, the first gear, the stirring mechanism and the smashing mechanism, it is ensured that tobacco leaves are smashed completely, and the tobacco leaves and soaking liquid are fully mixed; the filter plate can effectively reduce the crushed tobacco leaves entering the stirring cavity, and tobacco leaf residues accumulated at the discharging hopper are reduced; the filter screen can perform solid-liquid separation, so that the filter screen can be conveniently cleaned after being detached, and the filter screen is prevented from being blocked by residues after long-term use.

Description

Technical Field

[0001] The present invention relates to the technical field of reconstituted tobacco by the papermaking method, and particularly to a raw material premixing device for reconstituted tobacco production. Background Art

[0002] In the field of reconstituted tobacco production, the papermaking method is an important production process. In this process, tobacco raw materials need to be first crushed, and after soaking, solid-liquid separation is achieved. The solid part is made into a base sheet by referring to the papermaking process, and the liquid extract is concentrated and formulated and then coated on the base sheet to form a product.

[0003] In the raw material processing link, the premixing device is one of the key equipment, and its performance has an important impact on production efficiency and product quality. There are many deficiencies in the existing premixing devices in actual applications. On the one hand, when cutting tobacco raw materials, the raw materials put into the device are prone to accumulate at the bottom of the device due to gravity. A large amount of accumulation will not only cause the cutting tool to get stuck, affecting the normal operation of the device, but also reduce the cutting and crushing effect of the raw materials, thereby affecting the subsequent soaking and extraction efficiency. On the other hand, during the solid-liquid separation process, after the filter screen for intercepting residues completes filtration, a large amount of residues will accumulate on it. Since the filter screen is usually set at the lower position inside the device, the disassembly operation is difficult, resulting in difficulty in cleaning the filtered residues in a timely manner. This not only affects the solid-liquid separation effect, but also requires frequent shutdown for maintenance, reducing production continuity and efficiency, increasing equipment maintenance costs and production cycles, and becoming an important factor restricting the improvement of the production quality and efficiency of reconstituted tobacco. Summary of the Invention

[0004] The purpose of the present invention is to provide a raw material premixing device for reconstituted tobacco production, which can solve the above technical problems and effectively avoid the accumulation of tobacco raw materials at the bottom of the device.

[0005] The present invention provides a raw material premixing device for reconstituted tobacco production, including a box body. A feeding hopper is provided on the side of the top of the box body, and a motor is provided at the center of the top of the box body. The output shaft of the motor extends downward into the box body and is connected to a stirring mechanism. The output shaft of the motor is fixedly connected to a first gear. A cross plate is provided in the upper part of the box body, and the first gear is located between the cross plate and the top of the box body. The stirring mechanism is rotatably connected to the cross plate. Crushing mechanisms are provided on both sides of the stirring mechanism, and the first gear drives the crushing mechanisms. A filter plate is provided between the stirring mechanism and the crushing mechanisms. A feeding hopper is provided below the stirring mechanism, and a filter screen is provided on the feeding hopper. The feeding hopper is detachably connected to the box body.

[0006] Preferably, the stirring mechanism includes a first rotating rod. The top of the first rotating rod is fixedly connected to the output shaft of the motor. A number of support rods are provided on the outer wall of the first rotating rod, and the upper end of the first rotating rod is rotatably connected to the cross plate.

[0007] Preferably, a brush plate is connected to the bottom of the first rotating rod, and the bottom of the brush plate is attached to the filter net.

[0008] Preferably, the crushing mechanism includes a second gear meshing with the first gear. A screw conveyor is connected to the bottom of the second gear. The outer wall of the upper end of the screw conveyor is rotatably connected to the cross plate. The second gear and a third gear are meshed and connected. A second rotating rod is connected below the third gear. The outer wall of the upper end of the second rotating rod is rotatably connected to the cross plate. A plurality of cutting knives are provided on the outer wall of the second rotating rod.

[0009] Preferably, a clamping mechanism is provided between the feeding hopper and the box body. The clamping mechanism includes a bracket. The outer wall of the bracket is fixedly connected to the box body. A channel is provided in the center of the bracket. The feeding hopper is located in the channel. A sliding groove is provided at the bottom of the bracket. A limiting rod is provided in the sliding groove, and the limiting rod can be inserted into the side wall of the feeding hopper.

[0010] Preferably, a through hole is provided at one end of the sliding groove close to the feeding hopper. A limiting step is provided between the sliding groove and the through hole. A pin rod is provided at the end of the limiting rod, and the pin rod can pass through the through hole and be inserted into the clamping groove on the side wall of the feeding hopper. A lever is connected to the lower part of the limiting rod. A limiting groove is provided along the axial direction below the sliding groove, and the lever can slide along the limiting groove.

[0011] Preferably, a compression spring is provided between the end of the limiting rod away from the feeding hopper and the sliding groove.

[0012] Preferably, a sealing ring is provided between the feeding hopper and the clamping mechanism.

[0013] Preferably, a discharge port is formed in the side wall of the lower part of the box body, and a plug block is detachably connected to the inside of the discharge port.

[0014] Preferably, a valve is connected to the lower end of the feeding hopper.

[0015] Advantageous effects:

[0016] Through the cooperation among the motor, the first gear, the stirring mechanism and the crushing mechanism, the present invention realizes the driving of the stirring mechanism and the crushing mechanism by only using one motor, ensures complete crushing of the tobacco leaves, and makes the tobacco leaves fully mixed with the soaking liquid; a filter plate is provided between the stirring mechanism and the crushing mechanism, which can effectively reduce the crushed tobacco leaves from entering the cavity where the stirring mechanism is located, and reduce the tobacco leaf residues accumulated at the feeding hopper; a filter net is provided on the feeding hopper, which can carry out solid-liquid separation. At the same time, the feeding hopper and the box body are detachably connected, which is convenient for cleaning the filter net after disassembly, and avoids blockage of the filter net by residues after long-term use.

[0017] The structure of the present invention is simple and clear, which can effectively solve the problem of blockage after long-term use, and ensure the solid-liquid separation effect and production continuity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the sectional structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the crushing mechanism;

[0022] Figure 4 It is a schematic diagram of the sectional structure of the feeding hopper and the support;

[0023] Figure 5 It is a schematic diagram of the overall structure of the feeding hopper and the support.

[0024] DESCRIPTION OF THE REFERENCE NUMERALS:

[0025] 1 - box body, 2 - support feet, 3 - crushing mechanism, 301 - second gear, 302 - auger, 303 - third gear, 304 - second rotating rod, 305 - cutter, 4 - clamping mechanism, 401 - support, 402 - limiting rod, 403 - pin rod, 404 - lever, 405 - compression spring, 5 - motor, 6 - first gear, 7 - cross plate, 8 - feeding hopper, 9 - discharge port, 10 - plug, 11 - filter plate, 12 - first rotating rod, 13 - support rod, 14 - brush plate, 15 - filter net, 16 - feeding hopper, 17 - valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following will clearly and completely describe the technical solutions of the present invention in combination with the embodiments. Obviously, the described embodiments are some, rather than all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0027] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "a plurality of" means two or more, unless otherwise specifically defined. In addition, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Example 1

[0030] As Figures 1-5 shown, a raw material premixing device for reconstituted tobacco production includes a box body 1. Support feet 2 are provided at the bottom of the box body 1, and the support feet 2 can support the box body 1. A feeding hopper 8 is provided at the side of the top of the box body 1, and a motor 5 is provided at the center of the top of the box body 1. The output shaft of the motor 5 enters the inside of the box body 1 downward and is connected to a stirring mechanism. The output shaft of the motor 5 is fixedly connected to a first gear 6. A cross plate 7 is provided in the upper part of the box body 1, and the first gear 6 is located between the cross plate 7 and the top of the box body 1. The stirring mechanism includes a first rotating rod 12. The top of the first rotating rod 12 is fixedly connected to the output shaft of the motor 5. A plurality of support rods 13 are provided on the outer wall of the first rotating rod 12, and the upper end of the first rotating rod 12 is rotatably connected to the cross plate 7.

[0031] There are crushing mechanisms 3 on both sides of the stirring mechanism. The first gear 6 drives the crushing mechanism 3. A filter plate 11 is provided between the stirring mechanism and the crushing mechanism 3. The filter plate 11 separates the areas where the crushing mechanism 3 and the stirring mechanism are located, forming a crushing chamber where the crushing mechanism 3 is located and a stirring chamber where the stirring mechanism is located. The areas where the crushing mechanism 3 is located are all communicated with the opening of the feeding hopper 8. The tobacco raw materials and the soaking liquid for reconstituted tobacco enter the crushing chamber through the feeding hopper 8 and are crushed in the crushing chamber, and then can be mixed evenly in the stirring chamber. At the same time, the filter plate 11 can effectively prevent uncrushed tobacco from entering the stirring chamber, reduce the residue accumulated in the stirring chamber, and help extend the service life of the filter net 15 in the discharging hopper 16.

[0032] The crushing mechanism 3 includes a second gear 301 meshing with the first gear 6. The bottom of the second gear 301 is connected to an auger 302. The outer wall of the upper end of the auger 302 is rotatably connected to the cross plate 7. The second gear 301 and a third gear 303 are meshed and connected. A second rotating rod 304 is connected below the third gear 303. The outer wall of the upper end of the second rotating rod 304 is rotatably connected to the cross plate 7. A plurality of cutting knives 305 are provided on the outer wall of the second rotating rod 304. When the auger 302 rotates, it can drive the tobacco at the bottom to rise, avoiding the incomplete crushing or the jamming of the cutting knives 305 caused by the accumulation of tobacco at the bottom. At the same time, the auger 302 and the second rotating rod 304 and its cutting knives 305 are arranged adjacent to each other. As the auger 302 moves the tobacco upward, the cutting knives 305 can fully contact and cut and crush the rising and lifted tobacco, and can fully crush the tobacco entering the crushing chamber to make it fully soaked. Both the second gear 301 and the third gear 303 are located between the cross plate 7 and the top of the box body 1. The cross plate 7 can support the second gear 301 and the third gear 303. The first rotating rod 12, the second rotating rod 304 and the auger 302 are all rotatably connected to the cross plate 7 through bearings, ensuring smooth rotation.

[0033] A discharging hopper 16 is provided below the stirring mechanism. A filter net 15 is provided on the discharging hopper 16. The filter net 15 is inserted into the inner wall of the discharging hopper 16, which is convenient for disassembling and cleaning the filter net 15. The bottom of the first rotating rod 12 is connected to a brush plate 14. The bottom of the brush plate 14 is attached to the filter net 15. The top of the filter net 15 is lower than the top of the discharging hopper 16, which is convenient for limiting the bristle part of the brush plate 14. The pore size of the filter plate 11 is larger than the pore size of the filter net 15, ensuring the free flow of the soaking liquid between the stirring chamber and the crushing chamber.

[0034] The lower hopper 16 is detachably connected to the box body 1. A clamping mechanism 4 is provided between the lower hopper 16 and the box body 1. The clamping mechanism 4 includes a bracket 401. The outer wall of the bracket 401 is fixedly connected to the box body 1. A channel is vertically provided in the center of the bracket 401. The lower hopper 16 is located in the channel. A slide is horizontally provided at the bottom of the bracket 401. A through hole is provided at one end of the slide near the lower hopper 16. A limiting step is provided between the slide and the through hole. The cross-sectional area of ​​the through hole is smaller than the cross-sectional area of ​​the slide. A limiting rod 402 is provided in the slide. The limiting rod 402 can slide along the slide. The limiting step can limit the moving range of the limiting rod 402. A pin rod 403 is provided at one end of the limiting rod 402 near the lower hopper 16. A clamping groove is provided on the side wall of the lower hopper 16 corresponding to the pin rod 403. The pin rod 403 can pass through the through hole and be inserted into the clamping groove. The lower part of the limiting rod 402 is connected to a lever 404 to facilitate the shifting of the limiting rod 402. A limit groove is provided axially below the slide groove, and the lever 404 can slide along the limit groove. A compression spring 405 is provided between the end of the limit rod 402 away from the lower hopper 16 and the slide groove, and the pin rod 403 is tightly plugged into the slot under the action of the compression spring 405. A sealing ring is provided between the lower hopper 16 and the clamping mechanism 4 to prevent leakage between the lower hopper 16 and the clamping mechanism 4. The lower end of the lower hopper 16 is connected to the valve 17.

[0035] A discharge port 9 is provided on the lower side wall of the box body 1, and a plug 10 is detachably connected to the discharge port 9. The plug 10 fits tightly with the discharge port 9, can block the discharge port 9, and will not separate from the discharge port 9 without external force.

[0036] Working principle:

[0037] When the device of the present invention is used to premix raw materials for reconstituted tobacco production, cleaned tobacco leaves and soaking liquid are added to the crushing chamber inside the box body 1 through the feeding hopper 8, and the soaking liquid can pass through the filter plate 11 and enter the stirring chamber.

[0038] Start the motor 5, which drives the first gear 6 and the first rotating rod 12 to rotate. The support rod 13 on the first rotating rod 12 can stir the soaking liquid so that the soaking liquid is in full contact with the tobacco leaves and the tobacco leaves are fully soaked. At the same time, the filter plate 11 filters the tobacco leaves entering the stirring chamber to prevent large pieces of tobacco leaves from entering the stirring chamber and perform preliminary solid-liquid separation. The first gear 6 drives the two second gears 301 to rotate when rotating. The second gear 301 drives the auger 302 to rotate. At the same time, the second gear 301 drives the third gear 303 to rotate. The third gear 303 drives the second rotating rod 304 and the cutter 305 to rotate. The auger 302 moves the tobacco leaves below upward. In this process, the cutter 305 is in full contact with the tobacco leaves and crushes the tobacco leaves, effectively preventing the tobacco leaves from accumulating at the bottom of the box body 1, enhancing the crushing effect, preventing the cutter 305 from jamming due to tobacco leaf accumulation, and improving the raw material cutting effect of the reconstituted tobacco leaves.

[0039] After the tobacco leaves are cut and fully mixed and soaked, valve 17 is opened, and the soaking liquid inside box body 1 is discharged through the blanking hopper 16. When the first rotating rod 12 rotates, it drives the brush plate 14 to rotate. The brush plate 14 cleans the filter screen 15 to prevent residues from accumulating on the filter screen 15 and blocking the filter screen 15. After the soaking liquid is discharged, the motor 5 is turned off, and the plug 10 is pulled out from the discharge port 9. The staff discharges the tobacco leaves in box body 1 through the discharge port 9 and proceeds to the next step of processing.

[0040] After that, the lever 404 is pulled along the limiting groove. The lever 404 drives the limiting rod 402 to move, and then the pin rod 403 is disengaged from the clamping groove. At this time, the blanking hopper 16 can be taken out of the channel, and the residual impurities on the filter screen 15 are cleaned. After the cleaning is completed, the blanking hopper 16 is put back into the channel again. The lever 404 is released, and the limiting rod 402 slides under the action of the compression spring 405, and the pin rod 403 is inserted into the clamping groove to fix the blanking hopper 16 inside the bracket 401, and the use is completed.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A raw material premixing device for reconstituted tobacco production, characterized in that, It includes a box body. There is a feeding hopper on the side of the top of the box body. There is a motor in the center of the top of the box body. The output shaft of the motor enters the interior of the box body downward and is connected to a stirring mechanism. The output shaft of the motor is fixedly connected to a first gear. There is a horizontal plate in the upper part of the box body. The first gear is located between the horizontal plate and the top of the box body. The stirring mechanism is rotationally connected to the horizontal plate. There are crushing mechanisms on both sides of the stirring mechanism. The first gear drives the crushing mechanisms. There is a filter plate between the stirring mechanism and the crushing mechanisms. There is a discharging hopper below the stirring mechanism. There is a filter screen on the discharging hopper. The discharging hopper is detachably connected to the box body.

2. The raw material premixing device for reconstituted tobacco production according to claim 1, characterized in that, The stirring mechanism includes a first rotating rod. The top of the first rotating rod is fixedly connected to the output shaft of the motor. There are several support rods on the outer wall of the first rotating rod. The upper end of the first rotating rod is rotationally connected to the horizontal plate.

3. The raw material premixing device for reconstituted tobacco production according to claim 2, characterized in that, The bottom of the first rotating rod is connected to a brush plate. The bottom of the brush plate is in contact with the filter screen.

4. The raw material premixing device for reconstituted tobacco production according to claim 1, wherein, The crushing mechanism includes a second gear meshing with the first gear. The bottom of the second gear is connected to an auger. The outer wall of the upper end of the auger is rotationally connected to the horizontal plate. The second gear and a third gear are meshed and connected. The third gear is connected to a second rotating rod below. The outer wall of the upper end of the second rotating rod is rotationally connected to the horizontal plate. There are several cutting knives on the outer wall of the second rotating rod.

5. The raw material premixing device for reconstituted tobacco production according to claim 1, characterized in that, There is a clamping mechanism between the discharging hopper and the box body. The clamping mechanism includes a bracket. The outer wall of the bracket is fixedly connected to the box body. There is a channel in the center of the bracket. The discharging hopper is located in the channel. There is a chute at the bottom of the bracket. There is a limiting rod in the chute. The limiting rod can be inserted into the side wall of the discharging hopper.

6. The raw material premixing device for reconstituted tobacco production according to claim 5, characterized in that, There is a through hole at one end of the chute close to the discharging hopper. There is a limiting step between the chute and the through hole. There is a pin rod at the end of the limiting rod. The pin rod can pass through the through hole and be inserted into the side wall slot of the discharging hopper. A shifting rod is connected to the lower part of the limiting rod. There is a limiting groove along the axial direction below the chute. The shifting rod can slide along the limiting groove.

7. The raw material premixing device for reconstituted tobacco production according to claim 5, characterized in that There is a compression spring between the end of the limiting rod away from the discharging hopper and the chute.

8. The raw material premixing device for reconstituted tobacco production according to claim 5, wherein There is a sealing ring between the discharging hopper and the clamping mechanism.

9. The raw material premixing device for reconstituted tobacco production according to claim 1, characterized in that, There is a discharge port opened on the side wall of the lower part of the box body. A plug is detachably connected inside the discharge port.

10. The raw material premixing device for reconstituted tobacco production according to claim 1, wherein, A valve is connected to the lower end of the discharging hopper.

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