A tobacco block pre-loosening device

Abstract

The present application relates to a kind of tobacco block pre-loosening device, including screw rod and silk cover, silk cover connects frame, screw rod connects motor.Frame includes first frame and second frame, second frame at least includes two, is located in the two sides of first frame, second frame is equipped with slide rail, first frame both ends are inserted into slide rail, can move up and down along second frame;First frame below is equipped with fork assembly, fork assembly includes transversely arranged fork handle and longitudinally arranged multiple pairs of first fork blade and second fork blade, first fork blade and second fork blade are connected by bolt, first fork blade is fixed below fork handle, fork handle side surface is equipped with air cylinder, air cylinder connects second fork blade upper end portion, can push second fork blade and first fork blade open and close.First fork blade and second fork blade are together, insert tobacco block, separate tobacco block.After pre-loosening, after vacuum moisture regenerator, tobacco piece is completely loose, temperature moisture is uniform, there is no knot phenomenon.

Description

Technical Field

[0001] This invention relates to the field of tobacco leaf processing technology, specifically to a tobacco block pre-loosening device. Background Technology

[0002] Tobacco leaf processing is the starting point of cigarette production. Its task is to process qualified tobacco blocks into shredded tobacco with acceptable temperature, humidity, and width, which is then used in the cigarette making and packaging workshop to produce finished cigarettes. The primary task is to uniformly cut the incoming bales of tobacco into four or five pieces according to process requirements. The cut tobacco pieces are then boxed and sent to the next process, the vacuum rehumidification section. The vacuum rehumidification machine seals the tobacco pieces in a closed space, drawing a vacuum and injecting steam and water to achieve loose and uniform tobacco leaves. Because the tobacco leaves are packed using wind-powered leaf sorting and packaging, the pressure is high, the density is high, and the fit is tight. Even after cutting, they remain in block shape and are still dense. After vacuum rehumidification, some leaves may not be completely loosened and clump together, affecting subsequent conveying and easily causing blockages. Furthermore, it results in uneven temperature and humidity of the tobacco leaves, affecting the stability of subsequent process parameters.

[0003] Therefore, in order to further solve the problem of loose and uniform distribution, developing a pre-loosening device for tobacco blocks to assist in the loosening of tobacco blocks is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] This invention proposes a tobacco clump pre-loosening device, which significantly reduces clumping in tobacco leaves, improves the uniformity of temperature and humidity in tobacco leaves, and meets process requirements.

[0005] Specifically, a pre-loosening device for tobacco blocks is proposed, comprising a lead screw and a sleeve. The lead screw is connected to a motor, which drives the lead screw to move, and the movement of the lead screw drives the movement of the sleeve. The sleeve is connected to a frame, which includes a first frame and a second frame. The sleeve connects to the first frame, and the second frame comprises at least two parts, respectively located on both sides of the first frame and perpendicular to the first frame. The second frame is equipped with slide rails, and after both ends of the first frame are inserted into the slide rails, the first frame can move up and down along the second frame.

[0006] The fork assembly is located below the first frame, and a pressure sensor is installed between the fork assembly and the first frame. The fork assembly includes a horizontally arranged fork handle and multiple pairs of first and second forks arranged vertically. The fork handle is inserted into slide rails at both ends, allowing it to move up and down along the second frame. The first and second forks are bolted together, and can open and close at the bolt connection points. Multiple first forks are fixed below the fork handle, and the upper ends of multiple second forks are connected by crossbars, with at least two crossbars. The upper ends of the second forks are L-shaped, and the L-shaped structure has at least two through holes through which at least two crossbars pass, connecting the multiple second forks together. A cylinder is located on the side of the fork handle, connected to the upper ends of the second forks, and capable of pushing the second forks... The fork blades open and close with the first fork blades. There are at least two cylinders, which are respectively connected to the two second fork blades located at the outermost ends of the crossbar. A high-frequency vibrator is provided on the side of the first fork blade, and a switch for controlling the high-frequency vibrator is provided on the fork handle. The high-frequency vibrator is electrically connected to the switch. A heating rod or heating plate is provided on the first side of the second fork blade, and a fan is provided on the second side of the second fork blade. The fan is connected to a blower through a blower pipe. A groove is provided on the side of the second fork blade to accommodate the blower pipe. The bottoms of the first and second fork blades are inclined, making the bottoms pointed, so that it is easy to insert a smoke block. The second fork blade is provided with a clearance part, and the first fork blade can enter the clearance part, so that the first and second fork blades are in a closed state.

[0007] As a preferred technical solution, the pressure sensor is connected to the fork handle of the fork assembly and is located above the fork handle; at least two pressure sensors are provided symmetrically.

[0008] As a preferred technical solution, the upper end of the second frame is provided with a first limit switch.

[0009] As a preferred technical solution, a second limit switch is provided at the lower end of the second frame.

[0010] As a preferred technical solution, multiple first fork blades are detachably fixed below the fork handle.

[0011] As a preferred technical solution, the cylinder includes a cylinder telescopic mechanism, which includes a piston rod. One end of the piston rod is connected to a connecting rod mechanism, and the other end of the connecting rod mechanism is connected to the upper end of the second fork blade, which can push the second fork blade to open and close with the first fork blade.

[0012] As a preferred technical solution, the linkage mechanism is configured as a telescopic structure, which includes a first link and a second link. The second link is connected to one end of the piston rod, and the first link is connected to the upper end of the second fork.

[0013] As a preferred technical solution, the first link and the second link are connected by bolts, and the first link and the second link can extend and retract around the bolt connection point.

[0014] As a preferred technical solution, the bottom tips of the first and second forks are designed with a toothed structure.

[0015] As a preferred technical solution, a PLC control device is also included, which can control the operation of the device.

[0016] This invention achieves the following technical advantages over existing technologies: The pre-loosening device for tobacco blocks disclosed in this patent uses a first and second fork blade combined to insert tobacco blocks. When the second limit switch at the bottom detects the second frame, the cylinder drives the output, and the second fork blade begins to move, separating the tobacco blocks. Immediately, the motor reverses, the second frame rises, and the first limit switch at the top detects the second frame, stopping the process and continuing to the next cycle. A pressure sensor detects the torque; when it exceeds the PLC set value, the motor reverses to prevent the insertion of tobacco blocks without an upward-facing cut, thus preventing overload. Furthermore, the sides of the first and second fork blades are equipped with a high-frequency vibrator, a heating rod, and a fan. Vibration after insertion breaks up the tobacco blocks, and the heating rod or heating plate dries the tobacco blocks, making them more fluffy and easier to break up. After passing through the pre-loosening device and then the vacuum rehumidifier, the tobacco sheets are completely loosened, with uniform temperature and moisture content, and no clumping, which is more beneficial for subsequent processing.

[0017] Other features and advantages of this application will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing this application. Attached image description:

[0018] Figure 1 A schematic diagram of a smoke block pre-loosening device proposed in an embodiment of the present invention. Figure 1 ;

[0019] Figure 2 A schematic diagram of a smoke block pre-loosening device proposed in an embodiment of the present invention. Figure 2 ;

[0020] Figure 3 A schematic diagram of the connection structure between the first and second fork blades proposed in this embodiment of the invention;

[0021] Explanation of reference numerals in the attached figures:

[0022] Lead screw 11; lead sleeve 12; first frame 21; second frame 22; slide rail 221; first limit switch 222; second limit switch 223; pressure sensor 3; fork assembly 4; fork handle 41; first fork blade 42; high-frequency vibrator 421; second fork blade 43; through hole 431; heating rod 432; fan 433; clearance part 434; crossbar 44; cylinder 45; linkage mechanism 46; bolt 47. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. In the description of this invention, it should be noted that the term "or" is generally used to include the meaning of "and / or," unless otherwise expressly indicated.

[0024] It should be understood that the steps described in the method embodiments of this application may be performed in different orders and / or in parallel. Furthermore, the method embodiments may include additional steps and / or omit the steps shown. The scope of this application is not limited in this respect.

[0025] The term "comprising" and its variations as used herein are open-ended inclusions, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the description below.

[0026] It should be noted that the terms "one" and "multiple" used in this application are illustrative rather than restrictive, and those skilled in the art should understand that, unless explicitly stated otherwise in the context, they should be understood as "one or more". "Multiple" should be understood as two or more.

[0027] Example

[0028] like Figure 1 As shown, this embodiment presents a pre-loosening device for tobacco blocks. The device includes a lead screw and a sleeve 12. The sleeve 12 is connected to a frame, and the lead screw 11 is connected to a motor, which drives the lead screw 11 to move. The sleeve 12 is connected to the frame, and the lead screw 11 drives the sleeve 12 to move, which in turn drives the frame to move. Further, as... Figure 1 As shown, the frame includes a first frame 21 and a second frame 22. A threaded sleeve 12 connects the first frame 21. The second frame 22 includes at least two frames, located on both sides of the first frame 21. The second frame 22 is provided with a slide rail 221. Both ends of the first frame 21 are inserted into the slide rail 221, allowing it to move up and down along the second frame 22.

[0029] Furthermore, a fork assembly 4 is provided below the first frame 21. The fork assembly 4 is used to insert a tobacco block and break it up. The fork assembly 4 includes a horizontally arranged fork handle 41. Further, the fork handle 41 is located directly below the first frame 21, and both ends of the fork handle 41 can be inserted into the slide rail 221 to move up and down along the second frame 22. The fork assembly 4 also includes multiple pairs of first fork blades 42 and second fork blades 43 arranged longitudinally. The first fork blades 42 and second fork blades 43 can be connected by bolts 47. The first fork blades 42 and second fork blades 43 can open and close at the connection point of the bolts 47. When the first fork blades 42 and second fork blades 43 are together, they are used to insert a tobacco block. When they are separated after insertion, they break up the tobacco block.

[0030] Furthermore, the first fork blade 42 can be detachably fixed to the bottom of the fork handle 41. The detachable structure here can be understood by those skilled in the art as a bolt 47 connection or a rivet connection in the prior art. Through the detachable connection, it is possible to easily replace the object when there is a problem with its quality.

[0031] Preferably, a cylinder 45 is provided on the side of the fork handle 41 near the second fork blade 43. Further, at least two cylinders 45 are provided, each correspondingly connected to one of the two second fork blades 43 located at the outermost end of the crossbar 44. If there are a large number of paired first fork blades 42 and second fork blades 43, the number of cylinders 45 can be increased accordingly, and the cylinders 45 can be evenly distributed on the side of the fork handle 41. The cylinders 45 are connected to the second fork blades 43 through a linkage mechanism 46 to drive the second fork blades 43 to move, thereby opening and closing the first fork blades 42 and second fork blades 43.

[0032] Furthermore, the cylinder 45 includes a cylinder 45 telescopic mechanism, which includes a piston rod. One end of the piston rod is connected to a connecting rod mechanism 46, and the other end of the connecting rod mechanism 46 is connected to the upper end of the second fork 43, enabling the second fork 43 to open and close with the first fork 42. Preferably, the connecting rod mechanism 46 is a telescopic structure, including a first connecting rod and a second connecting rod. The second connecting rod is connected to one end of the piston rod, and the first connecting rod is connected to the upper end of the second fork 43. Furthermore, the first connecting rod and the second connecting rod are connected by bolts 47, and the first connecting rod and the second connecting rod can extend and retract around the connection point of bolts 47, facilitating a larger angle of separation between the first fork 42 and the second fork 43, thus breaking up the smoke.

[0033] Preferably, a pressure sensor 3 is provided between the fork assembly 4 and the first frame 21 to detect torque and prevent excessive pressure from damaging the device. Further, the pressure sensor 3 can be connected to the fork handle 41 of the fork assembly 4, positioned above the fork handle 41. The pressure sensor 3 is connected to the fork handle 41 of the fork assembly 4, positioned above the fork handle 41, as... Figure 1As shown, at least two pressure sensors 3 are provided symmetrically.

[0034] Continue to refer to Figure 1 , 2 Preferably, the upper part is L-shaped, and the upper parts of multiple second fork blades 43 are connected by crossbars 44. As can be seen in the figure, the L-shaped structure of the upper part of the second fork blades 43 is provided with at least two through holes 431, and at least two crossbars 44 pass through the through holes 431 provided on each second fork blade 43 to connect multiple second fork blades 43 together.

[0035] Preferably, at least two second frames 22 are provided with first limit switches 222 at a distance of 10-15 cm from the top, and at least two second frames 22 are provided with second limit switches 223 at a distance of 10-15 cm from the bottom. When the first fork 42 and the second fork 43 are joined together to insert the tobacco block, when the second limit switch 223 at the bottom detects the second frame 22, the cylinder 45 drives the output, and the linkage mechanism 46 pushes the second fork 43 to start moving, separating the first fork 42 and the second fork 43 and separating the tobacco block. Then the motor reverses, the second frame 22 rises, and the first limit switch 222 at the top detects the second frame 22 and stops, then continues to the next cycle. The pressure sensor 3 is used to detect the torque. When it is greater than the PLC set value, the motor reverses to prevent the insertion of tobacco blocks with the cut not facing upwards, thus preventing overload.

[0036] In some preferred embodiments, a high-frequency vibrator 421 is provided on the side of the first fork blade 42, and a switch for controlling the high-frequency vibrator 421 is provided on the fork handle 41. The high-frequency vibrator 421 is electrically connected to the switch. When the first fork blade 42 and the second fork blade 43 are inserted into the smoke block, the switch of the high-frequency vibrator 421 is turned on, and the smoke block is more easily loosened by vibration, improving work efficiency. Furthermore, a heating rod 432 or heating plate is provided on the first side of the second fork blade 43, which can heat the smoke block to make it more fluffy and easier to break up. Those skilled in the art should realize that the temperature of the heating block or heating rod 432 can be set to be adjustable. More preferably, a fan 433 is provided on the second side of the second fork blade 43. The fan 433 is connected to a blower through a blower pipe. A groove (not shown in the figure) is provided on the side of the second fork blade 43 to accommodate the blower pipe. By setting the fan 433, while breaking up the smoke block, it can help to blow away the dust in the smoke block. To facilitate the insertion of the tobacco block, the bottom of the first fork 42 and the second fork 43 are set at an angle, making the bottom pointed. Furthermore, the pointed bottom of the first fork 42 and the second fork 43 can be set as a toothed structure (not shown in the figure), which makes it easier to break up the tobacco block after insertion.

[0037] Furthermore, such as Figure 3As shown, the second fork blade 43 is provided with a clearance portion 434. When the first fork blade 42 and the second fork blade 43 are in the combined state, the first fork blade 42 can enter the clearance portion 434. In the combined state, the force point is small. Furthermore, the bottom of the first fork blade 42 and the second fork blade 43 are designed to be pointed, making it easier to insert the tobacco block. After insertion, the first fork blade 42 and the second fork blade 43 gradually separate under the drive of the cylinder 45. During the separation process, the tobacco block is dispersed.

[0038] Furthermore, the device also includes a PLC control unit, which can control the operation of the entire device.

[0039] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

Claims

1. A pre-loosening device for tobacco blocks, characterized in that, The device includes a lead screw and a lead sleeve. The lead screw is connected to a motor, which drives the lead screw to move, and the movement of the lead screw drives the movement of the lead sleeve. The lead sleeve is connected to a frame, which includes a first frame and a second frame. The lead sleeve connects to the first frame. The second frame includes at least two frames, each located on one side of the first frame and perpendicular to it. The second frame has a slide rail, and both ends of the first frame are inserted into the slide rail, allowing the first frame to move up and down along the second frame. A fork assembly is located below the first frame, and a pressure sensor is located between the fork assembly and the first frame. The fork assembly includes a horizontally arranged fork handle and multiple pairs of paired first and second fork blades arranged vertically. Both ends of the fork handle are inserted into the slide rail, allowing it to move up and down along the second frame. The first and second fork blades are connected by bolts, and they can open and close at the bolt connection points. Multiple first fork blades are fixed below the fork handle, and the upper ends of multiple second fork blades are connected by a crossbar. The crossbar comprises at least two members. The upper end of the second fork is L-shaped, and the L-shaped structure has at least two through holes. The at least two crossbars pass through the through holes to connect multiple second forks together. A cylinder is provided on the side of the fork handle. The cylinder is connected to the upper end of the second fork and can push the second fork to open and close with the first fork. The cylinder comprises at least two members, which are respectively connected to the two second forks located at the outermost ends of the crossbar. A high-frequency vibrator is provided on the side of the first fork. The fork handle has a switch for controlling the high-frequency vibrator. The high-frequency vibrator is electrically connected to the switch. A heating rod or heating plate is provided on the first side of the second fork. A fan is provided on the second side of the second fork. The fan is connected to a blower through a blower pipe. A groove is provided on the side of the second fork to accommodate the blower pipe. The bottoms of the first and second forks are inclined, making the bottoms pointed. The second fork has a clearance part, and the first fork can enter the clearance part, so that the first and second forks are in a combined state. It also includes a PLC control device to control the operation of the smoke block pre-loosening device; the upper part of the second frame is equipped with a first limit switch 10-15cm from the top, and the lower part of the second frame is equipped with a second limit switch 10-15cm from the bottom; when the first and second forks are joined together to insert the smoke block, when the second limit switch at the bottom detects the first frame, the cylinder drives the output, the linkage mechanism pushes the second fork to start moving, the first and second forks separate, separating the smoke block, then the motor reverses, the first frame rises, the first limit switch at the top detects the first frame, stops, and then continues to the next cycle; the pressure sensor is used to detect the torque, when it is greater than the PLC set value, the motor reverses; The pressure sensor is connected to the fork handle of the fork assembly and is located above the fork handle. At least two pressure sensors are provided symmetrically.

2. The smoke block pre-loosening device according to claim 1, characterized in that, Multiple first fork blades are detachably fixed below the fork handle.

3. The smoke block pre-loosening device according to claim 1, characterized in that, The cylinder includes a cylinder telescopic mechanism, which includes a piston rod. One end of the piston rod is connected to a linkage mechanism, and the other end of the linkage mechanism is connected to the upper end of the second fork blade, which can push the second fork blade to open and close with the first fork blade.

4. The smoke block pre-loosening device according to claim 3, characterized in that, The linkage mechanism is designed to be telescopic, and includes a first link and a second link. The second link is connected to one end of the piston rod, and the first link is connected to the upper end of the second fork.

5. The smoke block pre-loosening device according to claim 4, characterized in that, The first link and the second link are connected by bolts, and the first link and the second link can extend and retract around the bolt connection point.

6. The smoke block pre-loosening device according to claim 1, characterized in that, The bottom tips of the first and second fork blades are designed with a toothed structure.

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