A tipping paper bridge installing and roughening device

Abstract

The utility model belongs to the field of brushing equipment technology and provides a tipping paper bridge-mounted brushing device, which is installed on a rack and comprises a first paper feeding roller and a second paper feeding roller arranged in sequence on the rack along the running direction of the tipping paper, a first scraper for rough brushing of the tipping paper is arranged on the first paper feeding roller, and a second scraper for fine brushing of the tipping paper is arranged on the second paper feeding roller; and on the second paper feeding roller, a protective guide plate is arranged on the downstream side of the contact point between the second scraper and the roller surface. The utility model can thoroughly brush the tipping paper twice, the scraper works stably, and the problem that the tipping paper is not thoroughly brushed and bent in the traditional device can be solved, and thus the quality defects of the tipping paper, such as bubbling and burr, can be avoided in the subsequent process.

Description

Technical Field

[0001] This application relates to the field of texturing equipment technology, and in particular to a texturing device for adding texturing to cork paper bridges. Background Technology

[0002] On the production line for medium-length cigarettes, the different manufacturers' tipping paper used for the three main brands has varying physical properties, resulting in generally poor machine adaptability and hydrophilic stability. This makes it difficult to evenly and effectively absorb glue during the gluing process. Although equipment maintenance personnel have repeatedly adjusted and debugged the relevant units (such as the ZJ17 winding and splicing unit), the fundamental problems of poor water absorption of tipping paper and weak glue adsorption have not been completely solved.

[0003] This problem has had a significant negative impact on product quality, raw material consumption, and equipment operating efficiency. Specifically, before entering the bonding stage, the roughening (coating) and bending of the original paper surface (i.e., the adhesive side) of the tipping paper are not thoroughly processed. Incomplete roughening makes the paper surface too smooth, resulting in low frictional resistance, which not only makes it prone to shaking during operation but also makes it difficult for the glue to effectively wet and penetrate; while incomplete bending affects its adhesion to the filter and cigarette.

[0004] The deficiencies in these preliminary processes directly lead to a series of quality defects in the subsequent packaging and joining stages, such as wrinkled tipping paper, frayed tipping paper edges, curling edges, and even cigarette leakage. Cigarettes with these defects are often rejected after inspection, resulting in significant material waste. If these defects are not identified in time and flow into the next process, they can create serious quality risks. At the same time, frequent downtime for adjustments and troubleshooting severely restricts the continuity and efficiency of the production line.

[0005] Therefore, a tipping paper roughening device needs to be designed at the tipping paper bridge to accommodate tipping paper from different manufacturers or different batches from the same manufacturer. Existing technologies also offer several roughening devices for this purpose. For example, patent CN114903199B discloses a tipping paper bending roughening device, including a ceramic scraper base. The ceramic scraper base has a vertical arm and a horizontal arm, with the vertical arm and horizontal arm perpendicularly connected. The vertical arm has a slot, and the lower part of the horizontal arm has a ceramic scraper mounting groove. The ceramic scraper mounting groove is rectangular, with its width less than or equal to the width of the ceramic scraper, its height less than the height of the ceramic scraper, and its length greater than or equal to the length of the ceramic scraper. A ceramic scraper is installed within the mounting groove. The ceramic scraper is cuboid with a square cross-section, preferably 8.5 × 8.5 mm, and its width is greater than the width of the tipping paper. This invention is designed based on existing ceramic doctor blade specifications, featuring a simple structure and easy installation. The angle of the doctor blade can be adjusted to work in conjunction with existing ones, performing a double-texturing process on the tipping paper. This improves the water absorption of the tipping paper and enhances the adhesion between the base paper surface and the printing surface. However, this device has limitations in adapting to the different physical properties of tipping paper from different brands and manufacturers; furthermore, it does not consider the handling of debris generated during the texturizing process and lacks proactive debris collection and protection measures. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a tipping paper bridge device that performs two rounds of tipping, ensuring thorough tipping and stable blade operation. This solves the problem of incomplete tipping and bending during traditional devices, which leads to quality defects such as tipping paper wrinkles and burrs in subsequent processes.

[0007] To achieve the above objectives and related purposes, this utility model provides a tipping paper bridge-mounted roughening device, which is installed on a frame and includes a first feed roller and a second feed roller arranged sequentially on the frame along the tipping paper running direction. The first feed roller is provided with a first scraper for rough roughening the tipping paper, and the second feed roller is provided with a second scraper for fine roughening the tipping paper. Furthermore, a protective guide plate is provided on the second feed roller downstream of the contact point between the second scraper and the roller surface.

[0008] Furthermore, the angle between the cutting edge of the first doctor blade and the tipping paper passing through the first feed roller is 55°~70°.

[0009] Furthermore, the angle between the cutting edge of the second doctor blade and the tipping paper passing through the second feed roller is 20°~35°.

[0010] Furthermore, the cutting edge of the second scraper is made of polyurethane.

[0011] Furthermore, the second doctor blade is connected to the second paper feed roller via a second mounting base, which is equipped with a fine-tuning screw for adjusting the relative position and pressure between the second doctor blade and the second paper feed roller.

[0012] Furthermore, the protective guide plate is an arc-shaped cover structure that matches the outer curvature of the second paper feed roller.

[0013] Furthermore, a channel for collecting and guiding lint debris is formed between the concave surface of the arc-shaped cover structure and the surface of the second paper feed roller.

[0014] Furthermore, the first doctor blade is mounted on the first paper feed roller via the first mounting base.

[0015] Furthermore, both the first and second doctor blades are detachably installed at corresponding positions on the first and second paper feed rollers, respectively.

[0016] Furthermore, the first and second paper feed rollers are driven to rotate synchronously by a drive unit.

[0017] The beneficial technical effects of this utility model are as follows:

[0018] This invention employs a two-stage texturing process: coarse texturing and fine texturing. The first and second scrapers, made of different materials and at different angles, work together to ensure a more thorough and uniform texturing of the tipping paper, effectively improving its hydrophilicity and adhesive properties. Furthermore, the fine-tuning screw allows for precise adjustment of the angle and pressure of the second scraper, enabling the device to quickly adapt to the characteristics of tipping paper from different manufacturers or different batches from the same manufacturer.

[0019] This utility model's protective guide plate can collect and guide away debris generated during the paper brushing process, preventing secondary pollution and directly reducing defects such as wrinkles, burrs, and curling edges in the cork paper.

[0020] This utility model device operates stably and is highly adaptable. It can reduce frequent equipment adjustments and downtime caused by tipping paper issues, thereby improving the overall production line efficiency and equipment effective operating rate. Attached Figure Description

[0021] The accompanying drawings, incorporated in and forming part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without inventive effort. In the drawings:

[0022] Figure 1 This is a schematic diagram of the structure of the cork paper bridge with a roughening device added in this application;

[0023] Figure 2 This is a partial enlarged view of the second paper feed roller and the second doctor blade of this application;

[0024] Figure 3 This is a schematic diagram of the protective guide plate structure of this application.

[0025] Figure Labels

[0026] 1: Frame; 2: First paper feed roller; 21: First doctor blade; 22: First mounting base; 3: Second paper feed roller; 31: Fine adjustment screw; 32: Second doctor blade; 33: Second mounting base; 34: Protective guide plate; 4: Tipping paper. Detailed Implementation

[0027] Unless otherwise defined, all technical and / or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should be understood that certain features of this invention (described in the context of separate embodiments for clarity) may also be provided in combination in a single embodiment. Conversely, multiple features of this invention (described in the context of a single embodiment for brevity) may also be provided separately or in any suitable combination or, where appropriate, in any other described embodiment of this invention. Certain features described in the context of various embodiments will not be considered essential features of those embodiments unless the embodiment is inoperable without those elements. The present invention is further illustrated below by specific examples; however, it should be noted that the specific process conditions and results described in the embodiments of this invention are for illustrative purposes only and should not be construed as limiting the scope of protection of this invention. All equivalent changes or modifications made in accordance with the spirit and essence of this invention should be covered within the scope of protection of this invention.

[0028] like Figure 1 As shown, this application provides a paper tipping device for adding roughening to the paper tipping 4. It is installed on the frame 1 and includes a first paper feed roller 2 and a second paper feed roller 3 arranged sequentially on the frame 1 along the running direction of the paper tipping 4. The first paper feed roller 2 is provided with a first scraper 21 for roughing the paper tipping 4, and the second paper feed roller 3 is provided with a second scraper 32 for fine roughening the paper tipping 4. Furthermore, a protective guide plate 34 is provided on the second paper feed roller 3, located downstream of the contact point between the second scraper 32 and the roller surface.

[0029] Furthermore, the first doctor blade 21 is mounted on the first feed roller 2 via the first mounting base 22. The angle between the cutting edge of the first doctor blade 21 and the tipped paper 4 passing through the first feed roller 2 is 55°~70°. This application utilizes the first doctor blade 21, with a relatively large contact angle, to perform a high-intensity roughening treatment on the surface of the tipped paper 4 during the first stage of its operation, effectively breaking down the smooth surface fibers of the tipped paper 4 and quickly removing the main smooth layer or coating on the surface of the tipped paper 4, forming a preliminary roughened surface. In addition, the larger contact angle of the first doctor blade 21 in this application allows its cutting edge to exert a more direct force on the tipped paper 4, overcoming the differences in surface characteristics (such as coating thickness and smoothness) of tipped paper 4 from different manufacturers and batches. Furthermore, the angle of the first doctor blade 21 in this application is fixed to reduce the possibility of angle changes due to loose screws or vibration, ensuring a consistent roughening effect and reducing the frequency of maintenance and adjustment; the material of the first doctor blade 21 can be hard alloy, high-speed steel, alumina ceramic, etc.

[0030] Furthermore, the angle between the cutting edge of the second doctor blade 32 and the tipped paper 4 passing through the second feed roller 3 is 20°~35°. The smaller contact angle of the second doctor blade 32 results in a more horizontal force and gentler scraping, thus finely combing and grinding the surface of the tipped paper 4, which already has a certain roughness after coarse roughening. This further opens up the paper fibers, increases the surface area, and makes the surface roughness more uniform, thereby significantly improving the hydrophilicity and adhesive adhesion of the tipped paper 4. Moreover, the smaller contact angle reduces the risk of scratching or tearing the tipped paper 4 due to excessive secondary roughening force, especially for tipped papers with lower strength or thinner thickness, effectively improving the stability of the production process and the yield rate.

[0031] Furthermore, the cutting edge of the second scraper 32 is made of polyurethane, which has good elasticity and toughness, enabling the second scraper 32 to fit tightly against the surface of the second paper feed roller 3 under pressure. Even if the roller has slight jumping or unevenness, it can automatically follow up and compensate, ensuring a uniform and stable rubbing effect. Moreover, its moderate hardness can protect the fine surface of the rubbing roller and prevent scratches.

[0032] Furthermore, such as Figure 2As shown, the second doctor blade 32 is connected to the second paper feed roller 3 via a second mounting base 33. The second mounting base 33 is equipped with a fine-tuning screw 31 for adjusting the relative position and pressure between the second doctor blade 32 and the second paper feed roller 3. This application utilizes the fine-tuning screw 31 to precisely and minutely adjust the working parameters of the second doctor blade 32. By rotating the fine-tuning screw 31, the second doctor blade 32 and the second mounting base 33 can be pushed or pulled, thereby continuously and precisely changing two key parameters: contact pressure and effective working angle. The movement of the fine-tuning screw 31 directly changes the pressure of the polyurethane doctor blade edge on the surface of the second paper feed roller 3, ensuring that the second doctor blade 32 can effectively scrape away paper fibers for fine texturing without excessive wear or damage to the tipping paper 4 due to excessive pressure. The fine-tuning screw 31, by changing the relative position of the second doctor blade 32 and the roller surface, can finely adjust its effective working angle at the micrometer level, thereby optimizing the scraping effect. Furthermore, this application precisely controls the working parameters of the second scraper 32 by finely adjusting the screw 31, which can ensure the high uniformity and stability of the secondary fine texturing effect, directly reducing defects such as wrinkles and burrs on the tipping paper 4 from the process perspective; and facing the differences in surface characteristics of tipping paper 4 from different manufacturers and different batches, operators do not need to change the hardware, but can quickly achieve the best texturing effect by simply adjusting the screw 31, which greatly improves the equipment's adaptability to different materials.

[0033] Furthermore, such as Figure 3 As shown, the protective guide plate 34 of this application is an arc-shaped cover structure that matches the outer curvature of the second paper feed roller 3. A channel for collecting and guiding napping debris is formed between the concave surface of the arc-shaped cover structure and the surface of the second paper feed roller 3. A uniform channel can be formed between the protective guide plate 34 and the second paper feed roller 3 to ensure that the fine paper fibers and debris generated when the second doctor blade 32 performs fine napping on the tipping paper 4 can be effectively collected and immediately guided into the channel, rather than scattered in all directions. This prevents the fallen debris from re-adhering to the surface of the freshly treated tipping paper 4, avoiding problems such as spot stains and uneven gluing on the surface of the tipping paper 4 due to debris contamination, and thus preventing quality defects such as bubbles and burrs. Furthermore, this application utilizes the channel to smoothly guide the collected debris to a preset collection point or discharge port, thereby preventing the random accumulation of debris in critical areas of the equipment. Furthermore, the top of the protective guide plate 34 of this application is provided with a recessed area to accommodate the narrow space at the tipping paper bridge of the equipment and avoid interference with other components.

[0034] Furthermore, both the first doctor blade 21 and the second doctor blade 32 are detachably installed at corresponding positions on the first paper feed roller 2 and the second paper feed roller 3, allowing operators to independently and quickly replace individual doctor blades (such as the first doctor blade 21 responsible for roughening) when they are worn or damaged. The detachable methods of this application include, but are not limited to, modular plug-in connections, bolt connections, and slots.

[0035] Furthermore, the first feed roller 2 and the second feed roller 3 are driven to rotate synchronously by a drive unit to ensure that the linear speed of the tipping paper 4 remains strictly consistent as it passes through the two stations, so that the tipping paper 4 is always in a state of constant tension and stable conveying throughout the entire napping process. The drive unit in this application can be a servo motor or other device built into the entire cigarette machine equipment, which works in conjunction with the transmission system to drive the first feed roller 2 and the second feed roller 3 respectively.

[0036] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A paper tipping and framing device, which is installed on a frame (1), characterized in that, The machine includes a first feed roller (2) and a second feed roller (3) arranged sequentially on the frame (1) along the direction of the cork paper running. The first feed roller (2) is provided with a first scraper (21) for roughing the cork paper, and the second feed roller (3) is provided with a second scraper (32) for fine cork paper. Furthermore, a protective guide plate (34) is provided on the second feed roller (3) downstream of the contact point between the second scraper (32) and the roller surface.

2. The water-tight paper bridge with a roughening device according to claim 1, characterized in that, The angle between the cutting edge of the first scraper (21) and the cork paper passing through the first paper feed roller (2) is 55°~70°.

3. The water-tight paper bridge with a roughening device according to claim 1, characterized in that, The angle between the cutting edge of the second scraper (32) and the cork paper passing through the second paper feed roller (3) is 20°~35°.

4. The water-tightening paper bridge with a roughening device according to claim 1, 2 or 3, characterized in that, The cutting edge of the second scraper (32) is made of polyurethane.

5. The water-tight paper bridge with a roughening device according to claim 4, characterized in that, The second scraper (32) is connected to the second paper feed roller (3) via the second mounting base (33), and the second mounting base (33) is provided with a fine-tuning screw (31) for adjusting the relative position and pressure between the second scraper (32) and the second paper feed roller (3).

6. The water-pressed paper bridge with a roughening device according to claim 5, characterized in that, The protective guide plate (34) is an arc-shaped cover structure that matches the outer curvature of the second paper feed roller (3).

7. The water-tight paper bridge with a roughening device according to claim 6, characterized in that, The concave surface of the arc-shaped cover structure forms a channel between the surface of the second paper feed roller (3) for collecting and guiding the lint debris.

8. The water-tight paper bridge with a roughening device according to claim 2, characterized in that, The first scraper (21) is mounted on the first paper feed roller (2) via the first mounting base (22).

9. The water-tight paper bridge with a roughening device according to claim 1, characterized in that, The first scraper (21) and the second scraper (32) are both detachably installed at corresponding positions on the first paper feed roller (2) and the second paper feed roller (3).

10. The water-tight paper bridge with a roughening device according to claim 1, characterized in that, The first paper feed roller (2) and the second paper feed roller (3) are driven to rotate synchronously by a drive unit.

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