A cigarette tipping paper calender

Abstract

This utility model belongs to the technical field of special paper production equipment, and particularly relates to a calender for cigarette tipping paper base paper, comprising: a calendering roller, which is driven to rotate by a transmission system; a heating system, which is used to heat the calendering roller to improve the flattening and calendering effect of the calendering roller on the tipping paper; the calendering roller further comprises: a roller core, which is a hollow roller body, with roller shafts coaxially distributed at both ends of the roller core; a double-layer covering structure, which is set on the surface of the roller core to improve the toughness and high-temperature stability of the calendering roller; wherein, the heating system is an oil heating system. Compared with the prior art, this utility model improves the toughness, wear resistance and high-temperature stability of the calendering roller.

Description

Technical Field

[0001] This utility model belongs to the technical field of special paper production equipment, and in particular relates to a calender for cigarette tipping paper base paper. Background Technology

[0002] A cigarette tipping paper calender is a piece of equipment used to produce tipping paper (also called cigarette tipping paper) for tobacco products. Tipping paper is mainly used for packaging and sealing in the tobacco processing process. It typically has a certain degree of elasticity, strength, and a good appearance to meet the outer packaging requirements of tobacco products. The calender is mainly used to improve the surface quality of the tipping paper through physical means during the production process, making it smoother, finer, and improving its performance.

[0003] Existing tipping paper calenders typically consist of calender rolls, a drive system, a heating system, and a control system. During use, these existing calenders usually have an epoxy coating on the surface of the calender rolls to increase their surface smoothness and wear resistance. However, traditional epoxy coatings suffer from high brittleness, poor toughness, and poor high-temperature stability, which greatly reduces the service life of the calender rolls. Furthermore, the heating effect of existing calender rolls is poor, thus necessitating improvements. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned technical problems by providing a cigarette tipping paper calender, which effectively improves the toughness and high-temperature stability of the calender rollers, as well as the heating effect of the calender rollers.

[0005] In view of this, the present invention provides a cigarette tipping paper calender, comprising:

[0006] A calendering roller, which is driven to rotate by a transmission system;

[0007] A heating system is used to heat the calendering roller to improve the flattening and calendering effect of the calendering roller on the paper being loaded;

[0008] The calendering roller also includes:

[0009] The roller core is a hollow roller body, and roller shafts are provided at both ends of the roller core and are coaxially distributed with the roller core.

[0010] A double-layer covering structure is provided on the surface of the roller core to improve the toughness and high-temperature stability of the calendering roller;

[0011] The heating system is an oil heating system.

[0012] In this technical solution, a double-layer covering structure is adopted. By utilizing the different properties of the two layers of materials, the toughness, wear resistance and high temperature stability of the calendering roller are improved. This effectively solves the problem of high brittleness and easy damage of traditional epoxy covering layers, significantly extends the service life of the calendering roller, reduces the frequency of equipment maintenance and replacement, and lowers production costs.

[0013] In the above technical solution, the double-layer covering structure further includes:

[0014] The base layer is provided on the surface of the roller core;

[0015] A fiber-reinforced polyurethane surface layer is provided on the surface of the base layer.

[0016] In the above technical solution, the heating system further includes:

[0017] A heating oil pipe, which consists of an oil inlet pipe section, an oil outlet pipe section, and a heat exchange pipe section;

[0018] The heat exchange tube section is located inside the roller core. The oil inlet tube section and the oil outlet tube section are respectively connected to the two ends of the heat exchange tube section and respectively pass through the roller shafts at both ends of the roller core. The oil inlet tube section and the oil outlet tube section are both connected to the heat exchange tube section.

[0019] In the above technical solution, the heat exchange tube section is in the shape of an axially extending spring tube, and the outer side of the heating tube section is close to the inner wall of the roller core.

[0020] Furthermore, the above technical solution also includes:

[0021] The flow-blocking protrusions are numerous and evenly distributed on the inner surface of the heat exchange tube section.

[0022] The beneficial effects of this utility model are:

[0023] 1. By adopting a double-layer covering structure, the base layer ensures a firm bond between the surface layer and the roller core. The fiber-reinforced polyurethane surface layer has high toughness, high wear resistance and good high temperature stability, which effectively solves the problems of high brittleness and easy damage of traditional epoxy covering layers, significantly extends the service life of the calendering roller, reduces the frequency of equipment maintenance and replacement, and lowers production costs.

[0024] 2. The heating system adopts spring-tube heat exchange tube sections, which increases the contact area with the roller core, improves the heat transfer efficiency, and ensures that the hot oil is fully heated, thus ensuring that the calendering roller is heated evenly. This improves the flattening and calendering effect of the tipping paper, and enhances the surface quality and performance of the tipping paper.

[0025] 3. The baffle protrusions can disrupt the flow of hot oil, increase the residence time of hot oil in the heat exchange tube section, and further enable the hot oil to fully exchange heat. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present utility model.

[0028] Figure 2 This is a schematic diagram of the roller core structure of this utility model.

[0029] Figure 3 This is a cross-sectional view of the double-layer covering structure of this utility model.

[0030] Figure 4 This is a schematic diagram of the heat exchange tube section structure of this utility model.

[0031] Figure 5 This is a schematic diagram of the flow-blocking protrusion structure of this utility model.

[0032] The markings in the diagram are as follows:

[0033] 1. Calendering roller; 100. Roller core; 101. Roller shaft; 2. Double-layer covering structure; 20. Base layer; 21. Fiber-reinforced polyurethane surface layer; 3. Heating oil pipe; 30. Oil inlet pipe section; 31. Oil outlet pipe section; 32. Heat exchange pipe section; 4. Baffle protrusion. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] In the description of this application, 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 exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0036] Example 1:

[0037] This application provides a cigarette tipping paper calender, including: a calendering roller 1, which is driven to rotate by a transmission system; and a heating system, which is used to heat the calendering roller 1 to improve the flattening and calendering effect of the calendering roller 1 on the tipping paper.

[0038] The calendering roller 1 also includes: a roller core 100, which is a hollow roller body, and roller shafts 101 coaxially distributed at both ends of the roller core 100; and a double-layer covering structure 2, which is disposed on the surface of the roller core 100 to improve the toughness and high-temperature stability of the calendering roller 1.

[0039] The heating system is an oil heating system.

[0040] The double-layer covering structure 2 also includes: a base layer 20, which covers the surface of the roller core 100; and a fiber-reinforced polyurethane surface layer 21, which covers the surface of the base layer 20.

[0041] Furthermore, it includes a conventional calender body, which is a conventional steel structure body with a bracket for mounting the calender roller 1. The roller shafts 101 at both ends of the calender roller 1 core 100 are rotatably mounted on the bracket via conventional bearings. The transmission system can be a conventional gear transmission structure, including a driven gear arranged on the roller shaft 101 of the core 100 and a driving gear arranged on the bracket. The driving gear can be driven to rotate by a conventional drive motor. The base layer 20 is bonded to the fiber-reinforced polyurethane surface layer 21 and to the surface of the core 100. The base layer 20 can be composed of epoxy resin and filler, and the filler can be silicon carbide. The fibers in the fiber-reinforced polyurethane surface layer 21 can be glass fiber, carbon fiber, or aramid fiber, and are embedded in polyurethane in the form of filaments / ribbons. Aluminum particles can also be embedded in the fiber-reinforced polyurethane surface layer 21 to enhance the thermal conductivity of the surface layer.

[0042] In this embodiment, the present invention adopts a double-layer covering structure 2. The base layer 20 ensures a firm bond between the surface layer and the roller core 100. The fiber-reinforced polyurethane surface layer 21 has high toughness, high wear resistance and good high temperature stability, which effectively solves the problem of high brittleness and easy damage of traditional epoxy covering layers, significantly extends the service life of the calendering roller 1, reduces the frequency of equipment maintenance and replacement, and lowers production costs.

[0043] Example 2:

[0044] This embodiment provides a cigarette tipping paper calender, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the heating system further includes a heating oil pipe 3, which is composed of an oil inlet pipe section 30, an oil outlet pipe section 31, and a heat exchange pipe section 32.

[0045] The heat exchange tube section 32 is located inside the roller core 100. The oil inlet tube section 30 and the oil outlet tube section 31 are respectively connected to the two ends of the heat exchange tube section 32 and respectively pass through the roller shafts 101 at both ends of the roller core 100. Both the oil inlet tube section 30 and the oil outlet tube section 31 are connected to the heat exchange tube section 32.

[0046] The heat exchange tube section 32 is in the shape of an axially extending spring tube, with the outer side of the heating tube section close to the inner wall of the roller core 100.

[0047] In this embodiment, when the heating system is working, the heated heat transfer oil enters the heat exchange tube section 32 through the oil inlet pipe section 30. Inside the heat exchange tube section 32, the spring-tube-shaped heat exchange tube section 32 makes full contact with the inside of the roller core 100, transferring heat to the roller core 100. The roller core 100 then transfers heat to the base layer 20 and the fiber-reinforced polyurethane surface layer 21, causing the surface temperature of the calendering roller 1 to rise and remain uniform. After heat exchange, the heat transfer oil returns to the hot oil furnace through the oil outlet pipe section 31 for reheating and circulation. The use of the spring-tube-shaped heat exchange tube section 32 increases the contact area between the heat exchange tube section 32 and the roller core 100, and also prolongs the residence time of the hot oil in the roller core 100, thereby improving the heat transfer efficiency.

[0048] Example 3:

[0049] This embodiment provides a cigarette tipping paper calender, which, in addition to the technical solutions of the above embodiments, also has the following technical features, including: a flow-blocking protrusion 4, which has a plurality of protrusions and is evenly distributed on the inner surface of the heat exchange tube section 32.

[0050] Moreover, the distribution of the flow-blocking protrusions 4 is specifically as follows: a group of flow-blocking protrusions 4 are evenly spaced along the extension direction of the heat exchange tube section 32 to form a group of flow-blocking protrusions 4. In the circumferential direction of the heat exchange tube section 32, a number of groups of flow-blocking protrusions 4 are spaced apart, and the flow-blocking protrusions 4 in adjacent groups of flow-blocking protrusions 4 are staggered in the extension direction of the heat exchange tube section 32.

[0051] In this embodiment, the flow state of the heat transfer oil is disturbed and turbulence is formed in the heat exchange tube section 32 due to the effect of the baffle protrusion 4. This increases the heat exchange with the inner wall of the heat exchange tube section 32 and further prolongs the residence time of the hot oil in the heat exchange tube section 32, thereby enabling the hot oil to fully exchange heat and improving the heat transfer efficiency.

[0052] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A calender for cigarette tipping paper base paper, comprising: A calendering roller (1) is driven to rotate by a transmission system; A heating system is used to heat the calendering roller (1) to improve the flattening effect and calendering effect of the calendering roller (1) on the paper being loaded; The calendering roller (1) is characterized in that it further includes: Roller core (100), the roller core (100) is a hollow roller body, and roller shafts (101) are provided at both ends of the roller core (100) and are coaxially distributed with the roller core (100); A double-layer covering structure (2) is provided on the surface of the roller core (100) to improve the toughness and high-temperature stability of the calendering roller (1); The heating system is an oil heating system.

2. A calender for cigarette tipping paper base paper according to claim 1, characterized in that, The double-layer covering structure (2) also includes: A base layer (20) is provided covering the surface of the roller core (100); A fiber-reinforced polyurethane surface layer (21) is provided on the surface of the base layer (20).

3. A calender for cigarette tipping paper base paper according to claim 2, characterized in that, The heating system also includes: Heating oil pipe (3), which is composed of an oil inlet pipe section (30), an oil outlet pipe section (31) and a heat exchange pipe section (32); The heat exchange tube section (32) is located inside the roller core (100). The oil inlet tube section (30) and the oil outlet tube section (31) are respectively connected to both ends of the heat exchange tube section (32) and respectively pass through the roller shafts (101) at both ends of the roller core (100). The oil inlet tube section (30) and the oil outlet tube section (31) are both connected to the heat exchange tube section (32).

4. A calender for cigarette tipping paper base paper according to claim 3, characterized in that: The heat exchange tube section (32) is in the shape of an axially extending spring tube, with the outer side of the heat exchange tube section close to the inner wall of the roller core (100).

5. A calender for cigarette tipping paper base paper according to claim 4, characterized in that, Also includes: The flow-blocking protrusions (4) are a plurality of which are evenly distributed on the inner surface of the heat exchange tube section (32).

Images