A tobacco jam unblocking device and a control method thereof

Abstract

The application provides a tobacco jam unblocking device and a control method thereof. The tobacco jam unblocking device comprises a loosening and discharging mechanism, a lifting mechanism and a control system. The loosening and discharging mechanism comprises a roller, a first discharging pipe, a spiral shaft and a second discharging pipe. The roller is rotatably arranged on a supporting plate and is driven by a loosening motor through a chain transmission mechanism. The chain transmission mechanism connects a driving wheel and the loosening motor. The first discharging pipe is fixed on a fixed plate in pairs. The spiral shaft is rotatably arranged in the first discharging pipe in pairs and is driven by a discharging motor. One end of the second discharging pipe is tightly connected with one end of the first discharging pipe. The lifting mechanism comprises a screw rod, a fixed guide rod and a cross bar. The screw rod is rotatably arranged in a space between a top plate and a lower supporting plate in pairs and is driven by a lifting motor. A hinged through hole is arranged on the lifting plate and is coaxially matched with the screw rod. A cylindrical part of the fixed guide rod is coaxially matched with through holes at four corners of the bottom plate. The cross bar is fixed with pairs of the fixed guide rods at the front end and the rear end respectively.

Description

Technical Field

[0001] This invention relates to the field of tobacco conveying technology, and in particular to a device for unblocking tobacco shreds and its control 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] In the tobacco processing workshop, the transportation of tobacco shreds mainly relies on belt conveyors. Multiple belt conveyors are typically connected end-to-end between different processes to transfer materials, achieving a high degree of automation. Currently, tobacco shred blockage frequently occurs on belt conveyors due to various external or internal factors, often causing downtime of related production lines and hindering orderly production.

[0004] Currently, the main method for clearing tobacco blockages on belt conveyors is manual intervention. However, manual handling is inefficient and prone to delays, which can cause production schedule disruptions. Furthermore, due to limited working space, manual handling also poses certain safety hazards. Summary of the Invention

[0005] In order to solve the technical problems existing in the background art, the present invention provides a tobacco shred blockage unblocking device and its control method. The present invention can realize the unblocking of tobacco shred blockage, and has a high degree of automation, which reduces the labor intensity of workers, improves efficiency, and can quickly solve the blockage problem and thus restore production as soon as possible.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The first aspect of the present invention provides a device for unclogging tobacco shreds.

[0008] A device for unclogging tobacco shreds, comprising:

[0009] The inner and outer frames include an inner frame and an outer frame. The inner frame includes a base plate, one side of which is provided with a lifting plate, an upper support plate and a fixing plate symmetrically distributed along the short axis. The inner side of the upper support plate is provided with a fixing plate, and the other side is provided with a support plate symmetrically distributed along the short axis. The outer frame includes a top plate, one side of which is provided with a lower support plate symmetrically distributed along the long axis.

[0010] The traveling braking mechanism includes a drive wheel and fixed guide rods. The fixed guide rods are evenly arranged at the four corners of the base plate, and the drive wheel is rotatably mounted between the fixed guide rods and the outer frame.

[0011] The loose material discharge mechanism includes rollers, a first discharge pipe, a spiral shaft, and a second discharge pipe. The rollers are rotatably mounted on the support plate and driven by a loose motor through a chain drive mechanism. The chain drive mechanism connects the drive wheel to the loose motor. The first discharge pipes are paired and fixed on a fixed plate. The spiral shafts are paired and rotatably mounted inside the first discharge pipes and driven by the discharge motor. One end of the second discharge pipe is tightly connected to one end of the first discharge pipe.

[0012] The lifting mechanism includes a screw, a fixed guide rod, and a crossbar. The screws are arranged in pairs and rotatably in the space between the top plate and the lower support plate and are driven by a lifting motor. The lifting plate is provided with a hinged through hole and is coaxially engaged with the screw. The cylindrical part of the fixed guide rod is coaxially engaged with the through holes at the four corners of the bottom plate. The crossbars are arranged in pairs and are fixed to the fixed guide rods at the front and rear ends respectively.

[0013] Furthermore, the walking braking mechanism also includes a passive wheel and a brake clamp. The passive wheel is rotatably disposed between the fixed guide rod and the supporting front leg, and the driving wheel is rotatably disposed between the fixed guide rod and the supporting rear leg and is driven by the walking drive motor. When the driving wheel and the passive wheel are working, they are in direct contact with the baffle of the belt conveyor.

[0014] Furthermore, both the driving wheel and the driven wheel are truncated cone-shaped, with the smaller end face inside and the larger end face outside during installation. Both ends of the driving wheel are provided with fixed shafts, and the fixed shaft on the larger end face can be connected to the walking drive motor. The driven wheel is provided with a fixed shaft on the smaller end face and a circular slot on the larger end face, and can rotate around a predetermined center after installation.

[0015] Furthermore, the through hole of the fixed guide rod is coaxial with the through hole of the supporting rear leg, and its top cylinder is coaxial with the circular through hole of the base plate. The brake clamp is fixed at the end of the supporting front leg, and its position on the vertical plane is lower than the passive wheel. It cooperates with the walking drive motor. When the device stops moving, it will clamp the baffle of the belt conveyor. When the device is in the moving state, the brake clamp is in the loose state.

[0016] Furthermore, the first discharge pipe includes a sleeve, an inclined pipe, and a horizontal pipe. The top of the sleeve is fixed to a fixed plate, and there are notches at its bottom and upper middle part. The inclined pipe is tightly connected to the upper middle notch, and the horizontal pipe is tightly connected to the end of the inclined pipe to form a hollow pipe.

[0017] Furthermore, the inner frame rises and falls as the screw rotates in both directions.

[0018] Furthermore, the inner frame also includes a chain plate, which is disposed on one side of the base plate and is used to install and fix the loose motor and arrange the chain drive mechanism.

[0019] Furthermore, the external frame also includes a front support leg, a rear support leg, a motor frame, and a motor mounting base. The front support leg, the lower support plate, and the rear support leg are all installed on the same side of the top plate and are spaced apart along the boundary of their shorter sides. The motor mounting base is installed separately on the other side of the top plate, and the motor frame is fixedly installed at the lower end of the rear support leg. The through holes of both are on the same horizontal line.

[0020] Furthermore, the lower support plate has an "L" shaped structure, with its upper through hole arranged coaxially with the through hole of the motor mounting base.

[0021] A second aspect of the present invention provides a control method for a tobacco shred blockage clearing device.

[0022] A method for controlling a tobacco clogging device, applied to the tobacco clogging device described in the first aspect, comprising:

[0023] When the tobacco gets clogged, the walking drive motor moves to the clogged area and brakes.

[0024] The lifting motor drives and lowers the loosening and discharging mechanism. The loosening motor and the discharging motor move and come into contact with the tobacco. The rollers loosen the tobacco and move backward, discharging it through the screw shaft and the discharge pipe into the belt conveyor.

[0025] Once the tobacco shreds blocking the material are cleared, the lifting motor drives and raises the loosening and discharging mechanism. When it reaches the highest point, the lifting motor, loosening motor, and discharging motor stop.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. The loosening and unblocking mechanism designed in this invention can loosen and unblock blocked materials, has a high degree of automation, improves work efficiency, saves labor costs, and can quickly solve blockage problems so as to restore production as soon as possible.

[0028] 2. The present invention adopts a walking braking mechanism, which can ensure the stability and self-adjustment of the device when moving on the belt conveyor, has a high support capacity, and can also achieve braking at any time, so that the device can move and brake flexibly within the working range.

[0029] 3. This invention uses a screw conveyor to drive the inner and outer frames to achieve relative movement, effectively adjusting the height of the loose material discharge mechanism relative to the belt conveyor, reducing interference with normal material conveying, and improving the automatic intervention capability for material blockage.

[0030] 4. This invention utilizes a lifting mechanism to adjust the height between the loose material discharge mechanism and the belt conveyor, thereby enabling the switching between the working and non-working states of the device without affecting the normal operation of the belt conveyor. 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 schematic diagram (I) of the tobacco clogging and unblocking device of the present invention;

[0033] Figure 2 Figure II shows a partial structural diagram of the tobacco clogging unblocking device of the present invention;

[0034] Figure 3 This is a front view of the tobacco clogging unblocking device shown in this invention;

[0035] Figure 4 This is a side view of the tobacco clogging unblocking device shown in this invention;

[0036] Figure 5 This is a structural diagram of the inner frame shown in the present invention;

[0037] Figure 6 This is a structural diagram of the external frame shown in the present invention;

[0038] Figure 7 This is a structural diagram of the first discharge pipe shown in the present invention;

[0039] Figure 8 This is a schematic diagram of the automatic tobacco shred transfer device of the present invention on a belt conveyor;

[0040] Explanation of reference numerals in the attached figures:

[0041] 1: Roller; 2: Inner frame; 201: Base plate; 202: Chain plate; 203: Lifting plate; 204: Upper support plate; 205: Fixed plate; 206: Support plate; 3: Outer frame; 301: Top plate; 302: Support front leg; 303: Lower support plate; 304: Support rear leg; 305: Motor frame; 306: Motor mounting base; 4: Driven wheel; 5: Drive wheel; 6: Screw; 7: First discharge pipe; 701: Sleeve; 702: Inclined pipe; 703: Horizontal pipe; 8: Chain drive mechanism; 9: Fixed guide rod; 10: Crossbar; 11: Travel drive motor; 12: Discharge motor; 13: Loosening motor; 14: Lifting motor; 15: Second discharge pipe; 16: Screw shaft; 17: Brake clamp; 20: Belt conveyor. Detailed Implementation

[0042] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0043] 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.

[0044] 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.

[0045] The present invention will now be described in detail with reference to the embodiments. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0046] Example 1

[0047] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, this embodiment provides a tobacco shred blockage clearing device, including an inner frame 2, an outer frame 3, a walking braking mechanism, a loosening and discharging mechanism, and a lifting mechanism.

[0048] like Figure 5 As shown, the inner frame 2 includes a base plate 201, a chain plate 202, a lifting plate 203, an upper support plate 204, a fixing plate 205, and a support plate 206. Except for the base plate 201 and the chain plate 202, all components of the inner frame 2 are arranged in pairs and symmetrically about the long axis of the base plate 201. The chain plate 202, lifting plate 203, and upper support plate 204 are all fixed to the same side of the base plate 201 and installed sequentially at certain intervals along its longer side. The chain plate 202 serves to install and fix the loosening motor 13 and to arrange the chain drive mechanism 8. The lifting plate 203 has a hinged through hole that cooperates with the screw 6 to achieve the lifting and lowering of the inner frame 2. The upper support plate 204 has an "L"-shaped structure and installs the discharge motor 12. The support plate 206 is fixed to the other side of the base plate 201 and overlaps with the chain plate 202 in the vertical direction, used to support and install the roller 1. The fixing plate 205 is fixed to the upper half of the vertical section of the upper support plate 204, and its purpose is to fix the first discharge pipe 7.

[0049] like Figure 6As shown, the outer frame 3 includes a top plate 301, front supporting legs 302, a lower supporting plate 303, a rear supporting leg 304, a motor frame 305, and a motor mounting base 306. Except for the top plate 301, all components of the outer frame 3 are arranged in pairs and symmetrically about the short axis of the top plate 301. The front supporting legs 302, lower supporting plate 303, and rear supporting legs 304 are all installed on the same side of the top plate 301, spaced apart along its shorter side. The motor mounting base 306 is installed separately on the other side of the top plate 301. The lower supporting plate 303 has an "L"-shaped structure, with its through holes coaxial with the through holes of the motor mounting base 306. The width of the front supporting leg 302 is smaller than the width of the rear supporting leg 304, with the former's width approximately 3 / 5 of the latter's width. The motor frame 305 is fixedly installed at the lower end of the rear supporting leg 304, and the through holes of both are on the same horizontal line, ensuring the coaxiality of the motor and shaft connection.

[0050] like Figure 8 As shown, the traveling braking mechanism includes a pair of driven wheels 4, a driving wheel 5, a brake clamp 17, and four fixed guide rods 9. The fixed guide rods 9 are evenly arranged at the four corners of the base plate 201. The driven wheels 4 are rotatably mounted between the fixed guide rods 9 and the supporting front leg 302, and the driving wheels 5 are rotatably mounted between the fixed guide rods 9 and the supporting rear leg 304 and are driven by the traveling drive motor 11. Both the driving wheel 5 and the driven wheel 4 are truncated cone-shaped, with the smaller end face facing inward and the larger end face facing outward during installation, which improves the stability of the device moving on the baffle of the belt conveyor 20. Both ends of the driving wheel 5 are provided with fixed shafts, and the fixed shaft on its larger end face can be connected to the traveling drive motor 11; the driven wheel 4 is provided with a fixed shaft on its smaller end face and a circular slot on its larger end face, allowing it to rotate around a predetermined center after installation; both the driving wheel 5 and the driven wheel 4 are in direct contact with the baffle of the belt conveyor 20 during operation.

[0051] Specifically, the through hole of the fixed guide rod 9 is coaxial with the through hole of the supporting rear leg 304, and its top cylinder is coaxial with the circular through hole of the base plate 201. The fixed guide rod 9 serves two purposes: firstly, to support the driving wheel 5 and the driven wheel 4, and secondly, to guide the lifting and lowering of the inner frame 2. The brake clamp 17 is fixed to the end of the supporting front leg 302, and its position on the vertical plane is lower than that of the driven wheel 4. It cooperates with the walking drive motor 11. When the device stops moving, it clamps the baffle of the belt conveyor 20, thereby fixing the tobacco shred blockage clearing device on the belt conveyor 20. When the device is in a moving state, the brake clamp 17 is in a loose state.

[0052] The loosening and discharging mechanism includes rollers 1, a spiral shaft 16, a first discharge pipe 7, a chain drive mechanism 8, and a second discharge pipe 15. The rollers 1 have arc-shaped teeth that are evenly distributed around the circumference, with one side of the inner arc serving as the working surface. During operation, they loosen and transport clogged tobacco shreds backward. A certain gap exists between the roller teeth distributed along the cylindrical generatrix, which increases the force exerted by the roller teeth on the tobacco shreds, increases the contact area between the tobacco shreds and the roller teeth, and improves the unblocking efficiency. The rollers 1 are rotatably mounted on a pallet 206 and driven by a loosening motor 13 via the chain drive mechanism 8. The chain drive mechanism 8 connects the drive wheel 5 to the loosening motor 13 for power transmission.

[0053] like Figure 7 As shown, the first discharge pipe 7 includes a sleeve 701, an inclined pipe 702, and a horizontal pipe 703. The top of the sleeve 701 is fixed to the fixing plate 205, and it has notches at its bottom and upper middle part. The maximum width of the two notches is equal to the diameter of the sleeve 701, and the height is about 1 / 5 of the sleeve 701. The inclined pipe 702 is tightly connected to the upper middle notch to form a hollow pipe. The horizontal pipe 703 is tightly connected to the end of the inclined pipe 702 to form a hollow pipe. The inclined pipe 702 has a certain slope to make the tobacco pass through more smoothly. The rectangular end face of the second discharge pipe 15 is tightly connected to the horizontal pipe 703 of the first discharge pipe 7 to form a complete hollow pipe. The spiral shafts 16 are paired and rotatably installed inside the sleeve 701 and driven by the discharge motor 12. When the tobacco is driven by the spiral shafts, it is discharged through the inclined pipe 702, the horizontal pipe 703, and the second discharge pipe 15.

[0054] The lifting mechanism includes screws 6, fixed guide rods 9, and crossbars 10. The screws 6 are paired and rotatably mounted in the space between the top plate 301 and the lower support plate 303, and are driven by the lifting motor 14. The lifting plate 203 has hinged through holes that coaxially engage with the screws 6. The cylindrical portion of the fixed guide rods 9 coaxially engages with the through holes at the four corners of the bottom plate 201. The inner frame 2 and its mechanisms can rise and fall by rotating the screws 6 in both directions. The crossbars 10 are paired and fixed to the front and rear pairs of fixed guide rods respectively, to limit the lifting height and fix the fixed guide rods, and also to limit the lifting height of the inner frame.

[0055] In some embodiments, the walking drive motor 11, the discharge motor 12, and the lifting motor 14 are all arranged in pairs and symmetrically.

[0056] The tobacco blockage clearing device of the present invention carries components with different functions through the inner frame 2 and the outer frame 3, and completes the movement and positioning of the tobacco blockage clearing device on the belt conveyor 20, the lifting and lowering of the loose discharge structure and the clearing work through the cooperation of various motors.

[0057] The components designed in this invention work together to form a relatively complete set of equipment. It has a simple structure, is easy to manufacture and install, and can be used on belt conveyors of different specifications. It has a high degree of automation and accuracy, effectively saving unblocking time and manpower, and enabling the equipment to resume production as soon as possible.

[0058] Example 2

[0059] This embodiment provides a control method for a tobacco shred blockage unblocking device, including the following specific steps:

[0060] Step 1: The location of the passive wheel 4 is called the nose, and the location of the active wheel 5 is called the tail;

[0061] Step 2: The drive wheel 5 and the driven wheel 4 are supported by the baffle of the belt conveyor 20 as the track and the entire device stops at any position on the belt conveyor. At this time, the brake clamp 17 is in the clamping state and the lifting mechanism is in the highest state, thereby driving the loose discharge mechanism away from the belt conveyor 20.

[0062] Step 3: Smoke blockage accidents of belt conveyor 20 usually occur at the discharge port, so the device is arranged with the head facing the discharge port;

[0063] Step 4: When the tobacco gets clogged, the drive motor 11 moves the device to the clogged area and brakes.

[0064] Step 5: The lifting motor 11 drives and lowers the loosening and discharging mechanism. At the same time, the loosening motor 13 and the discharging motor 12 move and come into contact with the tobacco. The roller 1 loosens it and moves backward through the screw shaft 16 and the discharging pipe to discharge the tobacco from the belt conveyor 20.

[0065] Step 6: After the tobacco shreds at the blockage point are cleared, the lifting motor 11 is driven and the loosening and discharging mechanism is raised. When it reaches the highest point, the lifting motor 11, the loosening motor 13 and the discharging motor 12 stop.

[0066] Step 7: Finally, the walking drive motor 11 starts working, the brake clamp 17 loosens, the device returns to its initial position, the walking drive motor 11 stops working, the brake clamp 17 clamps, and the entire device returns to its original position.

[0067] 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 device for unclogging tobacco shreds, characterized in that, include: The inner and outer frames include an inner frame and an outer frame. The inner frame includes a base plate, one side of which is provided with a lifting plate, an upper support plate and a fixing plate symmetrically distributed along the short axis, and the other side is provided with a support plate symmetrically distributed along the short axis. The inner side of the upper support plate is provided with a fixing plate. The outer frame includes a top plate, one side of which is provided with a lower support plate symmetrically distributed along the long axis. The traveling braking mechanism includes a drive wheel and a fixed guide rod A. The fixed guide rod A is evenly distributed at the four corners of the base plate, and the drive wheel is rotatably mounted between the fixed guide rod A and the outer frame. The loose material discharge mechanism includes rollers, a first discharge pipe, a spiral shaft, and a second discharge pipe. The rollers are rotatably mounted on the support plate and driven by a loose motor through a chain drive mechanism. The chain drive mechanism connects the drive wheel to the loose motor. The first discharge pipes are paired and fixed on a fixed plate. The spiral shafts are paired and rotatably mounted inside the first discharge pipes and driven by the discharge motor. One end of the second discharge pipe is tightly connected to one end of the first discharge pipe. The lifting mechanism includes a screw, a fixed guide rod B, and a crossbar. The screws are arranged in pairs and rotatably in the space between the top plate and the lower support plate and are driven by a lifting motor. The lifting plate is provided with a hinged through hole and is coaxially engaged with the screw. The cylindrical part of the fixed guide rod B is coaxially engaged with the through holes at the four corners of the bottom plate. The crossbars are arranged in pairs and are fixed to the fixed guide rods B at the front and rear ends respectively. The external frame also includes a front support leg, a rear support leg, a motor frame, and a motor mounting base. The front support leg, the lower support plate, and the rear support leg are all installed on the same side of the top plate and are spaced apart along the boundary of their shorter side to provide stable support. The motor mounting base is installed separately on the other side of the top plate, and the motor frame is fixedly installed at the lower end of the rear support leg. The through holes on the rear support leg and the motor frame are on the same horizontal line. The walking braking mechanism also includes a passive wheel and a brake clamp. The passive wheel is rotatably disposed between the fixed guide rod A and the supporting front leg, and the driving wheel is rotatably disposed between the fixed guide rod A and the supporting rear leg and is driven by the walking drive motor. When the driving wheel and the passive wheel are working, they are in direct contact with the baffle of the belt conveyor.

2. The tobacco clogging unblocking device according to claim 1, characterized in that, Both the driving wheel and the driven wheel are truncated cone-shaped, with the smaller end face inside and the larger end face outside during installation. The driving wheel has a fixed shaft on both ends, and the fixed shaft on the larger end face can be connected to the walking drive motor. The driven wheel has a fixed shaft on the smaller end face and a circular slot on the larger end face, and can rotate around a predetermined center after installation.

3. The tobacco clogging unblocking device according to claim 1, characterized in that, The through hole of the fixed guide rod A is coaxial with the through hole of the supporting rear leg, and its top cylinder is coaxial with the circular through hole of the base plate. The brake clamp is fixed at the end of the supporting front leg. Its position on the vertical plane is lower than the passive wheel. It cooperates with the walking drive motor. When the device stops moving, it will clamp the baffle of the belt conveyor. When the device is in the moving state, the brake clamp is in the loose state.

4. The tobacco clogging unblocking device according to claim 1, characterized in that, The first discharge pipe includes a sleeve, an inclined pipe and a horizontal pipe. The top of the sleeve is fixed to a fixed plate, and there are notches at its bottom and upper middle part. The inclined pipe is tightly connected to the upper middle notch, and the horizontal pipe is tightly connected to the end of the inclined pipe to form a hollow pipe.

5. The tobacco clogging unblocking device according to claim 1, characterized in that, The inner frame rises and falls as the screw rotates in both directions.

6. The tobacco shred blockage clearing device according to claim 1, characterized in that, The inner frame also includes a chain plate, which is disposed on one side of the base plate and is used to install and fix the loose motor and arrange the chain drive mechanism.

7. The tobacco clogging and unblocking device according to claim 1, characterized in that, The lower support plate has an "L" shaped structure, and its through holes are arranged coaxially with the through holes of the motor mounting base.

8. A control method for a tobacco shred blockage unblocking device, characterized in that, The tobacco clogging unblocking device according to any one of claims 1-7 comprises: When the tobacco gets clogged, the walking drive motor moves to the clogged area and brakes. The lifting motor drives and lowers the loosening and discharging mechanism. The loosening motor and the discharging motor move and come into contact with the tobacco. The rollers loosen the tobacco and move backward, discharging it through the screw shaft and the discharge pipe into the belt conveyor. Once the tobacco shreds blocking the material are cleared, the lifting motor drives and raises the loosening and discharging mechanism. When it reaches the highest point, the lifting motor, loosening motor, and discharging motor stop.

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