Waterproof paper anti-curling device and cigarette making machine

Abstract

The utility model belongs to tobacco production technical field discloses a kind of water-based paper anti-curl device and cigarette making machine.The water-based paper anti-curl device includes fixed bolster and the jet pipe being set along first direction extension, fixed bolster is used to rotationally connect in paper cutting wheel and make fixed bolster can rotate around Y axis;Jet pipe is opened with several air blow holes along first direction, first direction is the width direction of water-based paper, jet pipe is connected in gas source;Wherein, air blow pipe rotationally connects in fixed bolster and air blow pipe can rotate around its central axis, to make the air blow path of air blow hole and paper cutting wheel tangent and air blow direction is oriented the advancing direction of water-based paper.The water-based paper anti-curl device can make water-based paper keep flat on paper cutting wheel surface, avoid curling phenomenon, to avoid water-based paper to be rolled into glue roller, and will not appear blow disorder situation, maintenance and cleaning are also more convenient, while also reduced maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of tobacco production technology, and in particular to a water-tip paper anti-curling device and a cigarette rolling machine. Background Technology

[0002] Curling of the tipping paper at the cutting position refers to a situation where, during equipment operation, the tipping paper is cut by the cutter roller and the paper-cutting wheel. As the vibrating roller pulls the tipping paper back, the end of the tipping paper on the paper-cutting wheel tends to curl and detach, causing the paper to get caught in the rubber roller. This phenomenon is a relatively difficult problem to handle in cigarette production, requiring the rubber roller to be removed from the equipment for cleaning, which is time-consuming and labor-intensive. This phenomenon often occurs during equipment start-up and shutdown, seriously affecting the effective operating rate and maintenance intensity of the equipment.

[0003] In existing technology, during normal equipment operation, the tipping paper is pressed onto the surface of the glue roller by the pressure roller to achieve glue application. In the cigarette machine production process, the tipping paper needs to be pre-processed. After the filter rod and cigarette stick are conveyed to the bonding area, the pressure roller then presses down to press the tipping paper onto the surface of the glue roller to achieve glue application. The tipping paper that is not coated with glue is then cut into multiple paper pieces by the paper cutting wheel and the knife roller, and sent to the tipping paper piece collection system.

[0004] During the start-up phase of the cigarette machine, the vibrating roller and the paper cutting roller pull the tipping paper back and forth. Before reaching the rubber roller, the tipping paper is roughened by the paper scraper to make it pre-curled. At this time, the pressure roller is raised and in a non-working state. When the pressure roller receives a signal to press down, the feeding path of the tipping paper changes, and its instantaneous pull-back distance becomes longer. The paper leaves the negative pressure hole area on the paper cutting roller, and the tipping paper will exhibit end curling. At this time, the vibrating roller can easily pull the tipping paper away from the paper cutting roller.

[0005] After the cigarette machine stops, the pressure roller immediately lifts up, no longer pressing the tipping paper onto the rubber roller. The oscillating roller, cutting roller, and knife roller are driven by the main motor and gear transmission. Due to inertia, they will continue to rotate for a period of time after the machine stops. The feed roller, however, is driven by an independent motor and can stop rotating immediately. The tipping paper will move back and forth on the cutting roller. During this movement, the end of the tipping paper will leave the negative pressure hole area. If the tipping paper has a good curling effect, the end of the tipping paper will curl. At this time, the oscillating roller can easily pull the tipping paper away from the cutting roller. In severe cases, the tipping paper will be rolled into the rubber roller.

[0006] Currently, there are improved technical solutions for preventing tipping paper from winding back onto the glue roller. Patents with application numbers 201320224552.1 and 201120375481.6 respectively introduce methods to prevent tipping paper from winding into the glue roller during the shutdown phase by relying on a check plate. However, these methods cannot prevent the tipping paper from curling at the end, and the tipping paper will still detach from the paper cutting roller, thus failing to completely solve the problem. Patent with application number 202120696923.0 adds two air blowing pipes to the rear end of the vibrating roller, using compressed air to tension the tipping paper that is loose during the start-up and shutdown phases. However, this method requires too much adjustment of the air blowing pipes, which can easily mess up the paper, and it also cannot solve the problem of tipping paper curling at the end.

[0007] Therefore, there is an urgent need to provide a new type of anti-curling device for cork paper and a cigarette rolling machine to solve the above-mentioned technical problems in the prior art. Utility Model Content

[0008] The purpose of this invention is to provide a tipping paper anti-curling device that can keep the tipping paper flat on the surface of the paper cutting wheel, avoid curling, and thus prevent the tipping paper from being rolled into the rubber roller, reducing maintenance costs.

[0009] To achieve this objective, the present invention adopts the following technical solution:

[0010] The anti-curling device for tipping paper includes a fixed bracket and an air jet pipe extending along a first direction. The fixed bracket is rotatably connected to the paper cutting wheel and allows the fixed bracket to rotate around the Y-axis. The air jet pipe has a plurality of air holes along the first direction, which is the width direction of the tipping paper. The air jet pipe is connected to an air source. The air jet pipe is rotatably connected to the fixed bracket and can rotate around its own central axis, so that the air path of the air holes is tangent to the paper cutting wheel and the air direction is towards the traveling direction of the tipping paper.

[0011] Optionally, the fixed bracket includes a mounting block and a movable block, the mounting block is detachably connected to the paper cutting wheel, the movable block is rotatably connected to the mounting block, and the air blowing pipe is connected to the movable block.

[0012] Optionally, a paper guide block is provided above the paper cutting wheel, and cork paper is sandwiched between the paper guide block and the paper cutting wheel. The mounting block and the paper guide block are fixedly connected to each other at either end along the first direction by screws.

[0013] Optionally, the aforementioned fixed bracket further includes a joint hinge, one end of which is connected to the aforementioned movable block, and the other end of which is connected to the aforementioned mounting block, so that the aforementioned movable block and the aforementioned mounting block are hinged together.

[0014] Optionally, one end of the jet pipe along the first direction is connected to the movable block, and the end of the jet pipe connected to the movable block is connected to a pipe joint, and the air source is connected to the jet pipe through the pipe joint.

[0015] Optionally, a solenoid valve is provided between the aforementioned pipe joint and the aforementioned gas source, and the solenoid valve is used to control the on / off state of the aforementioned pipe joint and the aforementioned gas source.

[0016] Optionally, a one-way throttle valve is provided between the gas source and the solenoid valve.

[0017] Optionally, the length of the air jet pipe along the first direction is greater than the width of the tipping paper along the first direction, so that the coverage width of the plurality of air holes in the first direction is not less than the width of the tipping paper along the first direction.

[0018] Optionally, the paper cutting wheel is equipped with a blade roller, which is used to cut the cork paper on the paper cutting wheel; the air blowing path of the air jet pipe covers the connection between the paper cutting wheel and the blade roller.

[0019] Another objective of this invention is to provide a cigarette rolling machine that includes a tipping paper anti-curling device as described in any of the above embodiments.

[0020] Beneficial effects:

[0021] The anti-curling device for tipping paper in this invention uses a fixed bracket rotatably connected to the paper cutting wheel. This allows the air jet pipe on the fixed bracket to be lowered when needed and retracted when not in use, facilitating maintenance and repair. The air jet pipe, rotatably connected to the fixed bracket, allows adjustment of the direction of airflow towards the paper cutting wheel surface. By rotating the air jet pipe around its central axis, the airflow direction of the air holes on the air jet pipe is adjusted, ensuring the airflow direction is tangential to the surface of the paper cutting wheel and towards the direction of tipping paper travel. This blows the tipping paper's front end, causing it to adhere to the surface of the paper cutting wheel, applying sufficient pressure to the tipping paper to prevent curling at the front end and preventing it from detaching from the paper cutting wheel and getting caught in the rubber roller. This reduces downtime for maintenance and improves production efficiency. This anti-curling device keeps the tipping paper flat on the surface of the paper cutting wheel, preventing curling and thus avoiding it from getting caught in the rubber roller. It also prevents the paper from becoming disordered, making maintenance and cleaning more convenient and reducing maintenance costs. Attached Figure Description

[0022] Figure 1 This is an isometric view of the cigarette machine provided in a specific embodiment of this utility model;

[0023] Figure 2This is an isometric view of the anti-curling device for cork paper provided in a specific embodiment of this utility model;

[0024] Figure 3 This is a longitudinal cross-sectional view of the anti-curling device for cork paper provided in a specific embodiment of this utility model;

[0025] Figure 4 This is a partial enlarged view of the anti-curling device on the tipping paper of the cigarette machine provided in a specific embodiment of this utility model;

[0026] Figure 5 This is a schematic diagram of the air circuit system of the anti-curling device for cork paper provided in a specific embodiment of this utility model.

[0027] In the picture:

[0028] 1. Paper guide block; 2. Air jet pipe; 3. Movable block; 4. Pipe joint; 5. Mounting block; 6. Joint hinge; 7. Air blowing hole; 8. Paper cutting wheel; 9. Knife roller; 10. Tumbler paper; 11. Air source; 12. Solenoid valve; 13. One-way throttle valve. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0033] like Figure 1 As shown, this embodiment first provides a cigarette rolling machine, which includes a tipping paper anti-curling device detailed in later sections of this embodiment. The tipping paper anti-curling device used in this cigarette rolling machine allows the jet pipe 2 to blow compressed gas onto the surface of the paper cutting roller 8, causing the tipping paper 10 to adhere to the surface of the paper cutting roller 8 under gas pressure, preventing the tipping paper 10 from curling or lifting. This eliminates the need to stop the machine to remove the stuck tipping paper 10, reducing maintenance costs, improving the continuity of the production process, and increasing production efficiency.

[0034] The first direction described in this embodiment is: Figure 2 The X direction shown is the width direction of the tipping paper 10; the second direction and the Y axis are... Figure 2 The Y direction shown is the direction of travel of the cork paper 10, while the X and Y directions are perpendicular to each other.

[0035] Please continue to refer to this. Figures 2 to 4 The anti-curling device for cork paper includes a fixed bracket and an air jet pipe 2 extending along a first direction. The fixed bracket is rotatably connected to the paper cutting wheel 8 and allows the fixed bracket to rotate around the Y-axis. The air jet pipe 2 has a plurality of air holes 7 along the first direction, which is the width direction of the cork paper 10. The air jet pipe 2 is connected to an air source 11. The air jet pipe is rotatably connected to the fixed bracket and can rotate around its own central axis, so that the air path of the air holes 7 is tangent to the paper cutting wheel 8 and the air direction is towards the traveling direction of the cork paper 10.

[0036] In this embodiment, the anti-curling device for tipping paper uses a fixed bracket rotatably connected to the paper cutting wheel 8. This allows the air jet pipe 2 on the fixed bracket to be lowered when needed and retracted when not in use, facilitating maintenance and repair. Furthermore, the air jet pipe 2, rotatably connected to the fixed bracket, allows adjustment of the direction in which it blows onto the surface of the paper cutting wheel 8. By rotating the air jet pipe around its central axis, the blowing direction of the air holes 7 on the air jet pipe is adjusted, ensuring that the blowing direction is tangential to the surface of the paper cutting wheel 8 and faces the direction of travel of the tipping paper 10. This blows the front end of the tipping paper 10, causing it to adhere to the surface of the paper cutting wheel 8, applying sufficient pressure to the tipping paper 10 to prevent curling at the front end and to prevent the tipping paper 10 from detaching from the paper cutting wheel 8 and getting caught in the rubber roller. This reduces downtime for maintenance and improves production efficiency. This anti-curling device for tipping paper ensures that the tipping paper 10 remains flat on the surface of the paper cutting roller 8, preventing it from curling. This prevents the tipping paper 10 from being rolled into the rubber roller and avoids it from being blown out of shape. It also makes maintenance and cleaning more convenient and reduces maintenance costs.

[0037] Optionally, the aforementioned fixed bracket includes a mounting block 5 and a movable block 3. The mounting block 5 is detachably connected to the paper cutting wheel 8, and the movable block 3 is rotatably connected to the mounting block 5. The air blowing pipe is connected to the movable block 3. The detachable connection between the mounting block 5 and the paper cutting wheel 8 facilitates the removal of the anti-curling device for the cork paper for maintenance and replacement, thus improving maintenance efficiency.

[0038] Furthermore, a paper guide block 1 is provided above the paper cutting roller 8, and a cork paper 10 is sandwiched between the paper guide block 1 and the paper cutting roller 8. The mounting block 5 and the paper guide block 1 are fixedly connected at either end along the first direction by screws. By fixing the mounting block 5 and the paper guide block 1 with screws, the cork paper anti-curling device can be firmly fixed above the paper cutting roller 8, and the screws are easy to remove, which can improve the efficiency of disassembly and maintenance and reduce maintenance costs.

[0039] like Figure 3 As shown, the aforementioned fixed bracket also includes a joint hinge 6. One end of the joint hinge 6 is connected to the movable block 3, and the other end is connected to the mounting block 5, so that the movable block 3 and the mounting block 5 are hinged. Using the joint hinge 6 to connect the movable block 3 and the mounting block 5 not only enables a rotatable connection between the movable block 3 and the mounting block 5, but also allows for smooth relative rotation between the two. The joint hinge 6 is an existing mass-produced product, readily available, and improves maintainability.

[0040] Furthermore, the length of the jet pipe 2 along the first direction is greater than the width of the tipping paper 10 along the first direction, so that the coverage width of the plurality of air holes 7 in the first direction is not less than the width of the tipping paper 10 along the first direction. This ensures that the airflow from the air holes 7 of the jet pipe 2 can completely cover the width of the tipping paper 10, thoroughly cleaning it and preventing curling at the edges, thus improving the anti-curling effect.

[0041] Optionally, the paper cutting roller 8 is equipped with a blade roller 9, which is used to cut the tipping paper 10 on the paper cutting roller 8; the air blowing path of the air jet pipe 2 covers the connection between the paper cutting roller 8 and the blade roller 9. Since the air blowing path of the air jet pipe 2 covers the connection between the paper cutting roller 8 and the blade roller 9, after the blade roller 9 cuts out each piece of tipping paper 10, the end of the unwound tipping paper 10 is always under the air blowing path of the air jet pipe 2, ensuring that its end will not curl, improving the anti-curling effect, thereby preventing the tipping paper 10 from being rolled into the rubber roller and preventing it from being blown out of shape, while also reducing the maintenance cost of the cigarette machine.

[0042] like Figure 3 and Figure 4 As shown, one end of the jet pipe 2 along the first direction is connected to the movable block 3, and the end of the jet pipe 2 connected to the movable block 3 is connected to a pipe connector 4. The air source 11 is connected to the jet pipe 2 through the pipe connector 4. With this arrangement, one end of the jet pipe 2 can be fixed on the movable block 3, and the other end can extend along the first direction and blow the water-filled paper 10 on the paper cutting roller 8, thus shortening the length of the jet pipe 2 and reducing product costs.

[0043] like Figure 5 As shown, a solenoid valve 12 is provided between the aforementioned pipe joint 4 and the aforementioned air source 11. The solenoid valve 12 is used to control the opening and closing of the connection between the aforementioned pipe joint 4 and the aforementioned air source 11. The solenoid valve 12 consists of an electromagnetic coil and a magnetic core. When the coil is energized or de-energized, the operation of the magnetic core will cause the fluid to pass through the valve body or be cut off, thereby changing the direction of the fluid. It is compact, flexible, and precise, and can be quickly opened and closed under the control of an electrical signal.

[0044] Optionally, a one-way throttle valve 13 is provided between the air source 11 and the solenoid valve 12. The working principle of the one-way throttle valve 13 is mainly to control the flow rate by adjusting the fluid channel area, so as to achieve unidirectional flow and throttling effect. It has the characteristics of simple structure, intuitiveness, low pressure loss and convenient maintenance, and is very suitable for flow control of liquid media.

[0045] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A device for preventing tipping paper from curling, characterized in that, include: A fixed bracket is rotatably connected to the paper cutting wheel (8) and allows the fixed bracket to rotate about the Y-axis; A jet pipe (2) extends along a first direction, and the jet pipe (2) has a plurality of air holes (7) along the first direction, which is the width direction of the cork paper (10). The jet pipe (2) is connected to an air source (11). The jet pipe (2) is rotatably connected to the fixed bracket and can rotate around its own central axis so that the air blowing path of the air blowing hole (7) is tangent to the paper cutting wheel (8) and the air blowing direction is towards the traveling direction of the cork paper (10).

2. The anti-curling device for tipping paper according to claim 1, characterized in that, The fixed bracket includes a mounting block (5) and a movable block (3). The mounting block (5) is detachably connected to the paper cutting wheel (8). The movable block (3) is rotatably connected to the mounting block (5). The jet pipe (2) is connected to the movable block (3).

3. The anti-curling device for cork paper according to claim 2, characterized in that, A paper guide block (1) is provided above the paper cutting wheel (8), and a cork paper (10) is sandwiched between the paper guide block (1) and the paper cutting wheel (8). The mounting block (5) is fixedly connected to the paper guide block (1) at either end along the first direction by screws.

4. The anti-curling device for cork paper according to claim 3, characterized in that, The fixed bracket also includes a joint hinge (6), one end of which is connected to the movable block (3) and the other end is connected to the mounting block (5), so that the movable block (3) and the mounting block (5) are hinged together.

5. The anti-curling device for cork paper according to claim 4, characterized in that, One end of the jet pipe (2) along the first direction is connected to the movable block (3), and the end of the jet pipe (2) connected to the movable block (3) is connected to a pipe connector (4). The air source (11) is connected to the jet pipe (2) through the pipe connector (4).

6. The anti-curling device for cork paper according to claim 5, characterized in that, A solenoid valve (12) is provided between the pipe connector (4) and the gas source (11), and the solenoid valve (12) is used to control the opening and closing of the pipe connector (4) and the gas source (11).

7. The anti-curling device for tipping paper according to claim 6, characterized in that, A one-way throttle valve (13) is provided between the gas source (11) and the solenoid valve (12).

8. The anti-curling device for tipping paper according to any one of claims 1-7, characterized in that, The length of the air jet (2) along the first direction is greater than the width of the cork paper (10) along the first direction, so that the coverage width of the plurality of air holes (7) in the first direction is not less than the width of the cork paper (10) along the first direction.

9. The anti-curling device for tipping paper according to any one of claims 1-7, characterized in that, The paper cutting wheel (8) is equipped with a knife roller (9), which is used to cut the cork paper (10) on the paper cutting wheel (8); the air blowing path of the air jet pipe (2) covers the connection between the paper cutting wheel (8) and the knife roller (9).

10. A cigarette rolling machine, characterized in that, Includes the anti-curling device for cork paper as described in any one of claims 1-9.

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