Stretching mechanism for household paper production

Abstract

The utility model belongs to the technical field of household paper production, and particularly relates to a stretching mechanism for household paper production, which comprises a rack, a rolling module, a hot air module, a rewinding module and a visual monitoring module, the rolling module and the hot air module are arranged on the rack; the hot air module comprises a hot air assembly and a stretching assembly which are both arranged on the rack, the hot air assembly is arranged above the stretching assembly, and the hot air assembly is used for generating hot air and conveying the hot air to the household paper of the stretching assembly; the visual monitoring module is used for shooting the stretching condition of the household paper; paper for daily use is pre-pressed by the rolling module, then conveyed to the stretching assembly and finally conveyed to the rewinding module to be rewound. And through automatic rolling, hot air stretching and rewinding processes, the production speed and the yield can be remarkably improved. And hot air stretching can make the paper more uniform, the strength and softness of the paper are improved, and therefore the use experience of a final product is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of household paper production, and in particular relates to a stretching mechanism for household paper production. Background Art

[0002] The production process of household paper generally includes the following steps: Pulp preparation: The pulp is blended and necessary additives are added to improve the performance of the paper. Papermaking: The blended pulp is fed into the papermaking machine to form wet paper sheets on the wire section of the papermaking machine, and the moisture is gradually removed. Stretching: During the paper drying process, the physical properties of the paper are improved through mechanical stretching or chemical treatment. Rewinding: The wide base paper produced by the papermaking machine is rolled into large rolls and rewound to adjust the number of layers and thickness. Cutting and packaging: The large rolls of paper are cut into appropriate sizes as needed and packaged. Finished product inspection: The finished paper is quality inspected to ensure that it meets relevant standards and consumer needs.

[0003] The stretching process in tissue production involves a stretching mechanism. This stretching mechanism physically stretches the paper, using methods such as rollers or stretching devices, to increase its length and reduce its width, thereby improving its strength and softness. This stretching process improves the paper's physical properties, such as strength, softness, and absorbency, to meet the needs of different applications. For example, for tissues like toilet paper and facial tissue, stretching can help improve their comfort and performance.

[0004] There are still some problems with the quality of household paper stretched by existing stretching mechanisms, and it is necessary to improve the quality of household paper by optimizing the stretching steps and structure. Utility Model Content

[0005] The purpose of the utility model is to provide a stretching mechanism for producing household paper, aiming to solve the technical problem that the quality of the household paper stretched by the stretching mechanism in the prior art is still poor.

[0006] To achieve the above-mentioned purpose, an embodiment of the present invention provides a stretching mechanism for the production of household paper, comprising a frame, a rolling module, a hot air module, a rewinding module and a visual monitoring module; the rolling module and the hot air module are both arranged on the frame; the rolling module, the hot air module and the rewinding module are arranged in sequence along the conveying direction of the household paper; the hot air module comprises a hot air component and a stretching component, both of which are arranged on the frame, the hot air component is arranged above the stretching component, and the hot air component is used to generate hot air and convey the hot air to the household paper in the stretching component; the visual monitoring module is used to photograph the stretching condition of the household paper; the household paper is pre-pressed by the rolling module and then conveyed to the stretching component, and finally conveyed to the rewinding module for rewinding.

[0007] Optionally, the hot air assembly includes a fan, a heating element and an air duct; the fan is arranged on the frame, the air duct is connected to the fan, the heating element is arranged in the air duct and is used to generate heat; the air outlet of the air duct is arranged directly opposite the stretching assembly.

[0008] Optionally, the stretching assembly includes a drive motor, a first stretching roller and a second stretching roller; the first stretching roller and the second stretching roller are arranged sequentially downward along the vertical direction of the frame; the output end of the drive motor is connected to the first stretching roller or the second stretching roller, and the first stretching roller is transmission-connected to the second stretching roller.

[0009] Optionally, a heating wire is provided in the first stretching roller and / or the second stretching roller.

[0010] Optionally, the connecting shaft of the first stretching roller and the connecting shaft of the second stretching roller are both provided with gears, and the two gears are meshed with each other.

[0011] Optionally, the stretching assembly also includes an elastic structure, which includes a pressure rod, a connecting seat and an elastic member, the connecting seat is arranged on the frame, the pressure rod is threadedly connected to the connecting rod, and the pressure rod is connected to the connecting shaft of the first stretching roller; the elastic member is arranged between the pressure rod and the frame.

[0012] Optionally, the elastic member is a spring.

[0013] Optionally, the hot air module further includes a mounting plate and a cylinder, the hot air assembly is arranged on the mounting plate; one end of the mounting plate is rotatably connected to the frame; the cylinder is arranged on the frame, and the mounting plate is connected to the telescopic end of the cylinder.

[0014] Optionally, the rolling module includes a high-pressure roller and a soft calendering roller, which are arranged in sequence along the conveying direction of the household paper. The high-pressure roller is used to perform initial pressing on the paper; the soft calendering roller performs calendering treatment on the paper.

[0015] Optionally, a water collecting box is further included, which is arranged on the frame and located at the bottom of the rolling module and the stretching assembly. The water collecting box is provided with a water collecting trough, which is arranged towards the rolling module.

[0016] The above one or more technical solutions in the stretching mechanism for the production of household paper provided by the embodiment of the present invention have at least one of the following technical effects: the hot air component generates high-temperature airflow, which is guided to the stretching component, and the hot air is used to blow on the wet paper sheets, so that the fibers are rearranged under the action of the hot air, making the paper softer and easier to stretch, and under the action of the hot air, the stretching component stretches the paper by mechanical force to increase the density and strength of the paper. Through the automated rolling, hot air stretching and rewinding process, the production speed and output can be significantly improved. Hot air stretching can make the paper more uniform, improve its strength and softness, and thus enhance the user experience of the final product. Precise stretching control reduces excessive stretching or tearing of the paper, thereby reducing material waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 This is a schematic structural diagram of the stretching mechanism provided in an embodiment of the present utility model.

[0019] Figure 2 This is a structural schematic diagram of the stretching mechanism provided by an embodiment of the present utility model from another perspective.

[0020] Figure 3 This is a structural schematic diagram of the stretching mechanism provided by an embodiment of the present utility model from another perspective.

[0021] Among them, the reference numerals in the figures are:

[0022] Frame 10, rolling module 20, high-pressure roller 21, soft calendering roller 22, hot air module 30, hot air assembly 31, stretching assembly 32, pressure rod 33, connecting seat 34, elastic member 35, mounting plate 36, cylinder 37, fan 311, heating element 312, air duct 313, first stretching roller 321, second stretching roller 322, rewinding module 40, gear 50, water collecting box 60, water collecting tank 61. DETAILED DESCRIPTION

[0023] The following describes the embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. Figures 1 to 3 The described embodiments are exemplary and are intended to explain the embodiments of the present invention, but should not be understood as limiting the present invention.

[0024] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0026] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0027] In one embodiment of the present invention, Figures 1 to 3 As shown, a stretching mechanism for tissue paper production is provided, comprising a frame 10, a rolling module 20, a hot air module 30, a rewinding module 40, and a visual monitoring module. The rolling module 20 and the hot air module 30 are both mounted on the frame 10. The rolling module 20, the hot air module 30, and the rewinding module 40 are arranged in sequence along the conveying direction of the tissue paper. The hot air module 30 includes a hot air assembly 31 and a stretching assembly 32, both mounted on the frame 10. The hot air assembly 31 is positioned above the stretching assembly 32 and is used to generate hot air and deliver it to the tissue paper in the stretching assembly 32. The visual monitoring module is used to capture the stretching of the tissue paper. After pre-pressing the tissue paper by the rolling module 20, it is conveyed to the stretching assembly 32 and finally to the rewinding module 40 for rewinding. The rewinding module 40, located after the stretching assembly 32, is responsible for winding the stretched tissue paper into a roll for subsequent packaging and transportation. The visual monitoring module monitors the stretching of the paper in real time to ensure product quality and the stability of the production process.

[0028] The hot air component 31 generates high-temperature airflow, which is guided to the stretching component 32. The hot air is used to blow on the wet paper sheets, so that the fibers are rearranged under the action of the hot air, making the paper softer and easier to stretch. Under the action of the hot air, the stretching component 32 stretches the paper through mechanical force to increase the density and strength of the paper. Through the automated rolling, hot air stretching and rewinding process, the production speed and output can be significantly improved. Hot air stretching can make the paper more uniform, improve its strength and softness, thereby improving the user experience of the final product. Precise stretching control reduces excessive stretching or tearing of the paper, thereby reducing material waste. After the paper is dried and stretched, the rewinding module 40 rolls the paper into a roll for subsequent processing and packaging. The rewinder can also further stretch and sort the paper.

[0029] In this example, the hot air assembly 31 includes a fan 311, a heating element 312 and an air duct 313; the fan 311 is arranged on the frame 10, the air duct 313 is connected to the fan 311, the heating element 312 is arranged in the air duct 313, and is used to generate heat; the air outlet of the air duct 313 is arranged opposite the stretching assembly 32. Specifically, the fan 311 serves as the power source of the hot air assembly 31, and the fan 311 is responsible for providing the necessary airflow. The air duct 313 connects the fan 311 and the heating element 312, and the air duct 313 is responsible for guiding the airflow generated by the fan 311 to the heating element 312, and further transporting it to the air outlet. The heating element 312 is located inside the air duct 313, and is responsible for converting electrical energy or other energy into thermal energy, heating the airflow passing through the air duct 313. The hot air assembly 31, through the coordinated operation of its fan 311, air duct 313, and heating element 312, provides the necessary heat energy for the paper stretching process. This not only improves production efficiency but also ensures paper quality and energy efficiency. The heating element 312 can be made of a metal wire with high resistivity, such as a nickel-chromium alloy. When current passes through the heating wire, heat is generated due to the resistance.

[0030] In this example, the stretching assembly 32 includes a drive motor, a first stretching roller 321, and a second stretching roller 322; the first stretching roller 321 and the second stretching roller 322 are arranged in sequence downward along the vertical direction of the frame 10; the output end of the drive motor is connected to the first stretching roller 321 or the second stretching roller 322, and the first stretching roller 321 is transmission-connected to the second stretching roller 322. Specifically, the drive motor serves as a power source, and the drive motor is responsible for providing the power required by the stretching roller. The drive motor is started and transmits power through its output end. The first stretching roller 321 and the second stretching roller 322 are transmission-connected and work together. The first stretching roller 321 and the second stretching roller 322 receive power and start to rotate, applying pressure to the paper to achieve squeezing and stretching.

[0031] In this example, a heating wire is provided in the first stretching roller 321 and / or the second stretching roller 322. Specifically, there are three configurations: first, a heating wire is provided in the first stretching roller 321, but not in the second stretching roller 322; second, no heating wire is provided in the first stretching roller 321, but a heating wire is provided in the second stretching roller 322 and / or the second stretching roller 322; third, heating wires are provided in both the first stretching roller 321 and the second stretching roller 322. In this way, the fibers are rearranged under the action of hot air, making the paper softer and easier to stretch. The heating wire can be made of a metal wire with high resistivity, such as nickel-chromium alloy. When current passes through the heating wire, heat is generated due to the resistance.

[0032] In this example, the connecting shafts of the first stretching roller 321 and the second stretching roller 322 are both provided with gears 50, and the two gears 50 mesh with each other. Specifically, the main shaft of the drive motor is also provided with a gear 50, and the gear 50 of the drive motor meshes with the gear 50 provided on the second stretching roller 322. In this way, power transmission is achieved through the structure of the gears 50.

[0033] In this example, the stretching assembly 32 further includes an elastic structure, which includes a pressure rod 33, a connecting seat 34, and an elastic member 35. The connecting seat 34 is disposed on the frame 10. The pressure rod 33 is threadedly connected to the connecting rod, and the pressure rod 33 is connected to the connecting shaft of the first stretching roller 321. The elastic member 35 is disposed between the pressure rod 33 and the frame 10. Specifically, the portion of the pressure rod 33 connected to the connecting shaft is connected to the elastic member 35. In this way, when the connecting shaft moves downward in the vertical direction, it compresses the elastic member 35, thereby preventing excessive pressure between the first stretching roller 321 and the second stretching roller 322 from damaging the paper. Through the threaded connection between the pressure rod 33 and the connecting seat 34, the pressure rod 33 is rotated, thereby driving the connecting shaft to move, wherein the connecting shaft is rotatable on the pressure rod 33. The elastic member 35 is a spring.

[0034] In this example, the hot air module 30 also includes a mounting plate 36 and a cylinder 37. The hot air assembly 31 is mounted on the mounting plate 36. One end of the mounting plate 36 is rotatably connected to the frame 10. The cylinder 37 is mounted on the frame 10, and the mounting plate 36 is connected to the telescopic end of the cylinder 37. Specifically, the hot air assembly 31 is fixed to the mounting plate 36, forming a single unit with the mounting plate 36. One end of the mounting plate 36 is rotatably connected to the frame 10, and the other end is connected to the telescopic end of the cylinder 37, forming an adjustable support structure. The cylinder 37 is fixed to the frame 10 and connected to the mounting plate 36 via its telescopic end, controlling the position of the mounting plate 36. The mounting plate 36 moves as the cylinder 37 expands and contracts, driving the hot air assembly 31 up and down to adjust the angle between the hot air assembly 31 and the paper. By controlling the position of the mounting plate 36 by the cylinder 37, the distance between the hot air assembly 31 and the paper can be precisely adjusted, thereby controlling the temperature and uniformity of the hot air. The stable driving force of the cylinder 37 ensures the stable movement of the mounting plate 36 and the hot air assembly 31, thereby improving the stability and reliability of the equipment.

[0035] In this example, the rolling module 20 includes a high-pressure roller 21 and a soft calender roller 22, positioned sequentially along the conveying direction of the household paper. The high-pressure roller 21 compresses the paper to increase its density and strength. Specifically, the high-pressure roller 21 is located at the front end of the rolling module 20, directly contacting and applying pressure to the paper. The soft calender roller 22 calenders the paper. The soft calender roller 22 applies a slight calendering treatment to the paper, increasing its smoothness and glossiness while also helping to stretch the paper.

[0036] In this example, a water collecting box 60 is also included. The water collecting box 60 is arranged on the frame 10 and is located at the bottom of the rolling module 20 and the stretching assembly 32. The water collecting box 60 is provided with a water collecting trough 61, and the water collecting trough 61 is arranged toward the rolling module 20. Specifically, the water collecting box 60 is located below the rolling module 20 and the stretching assembly 32 to ensure that water dripping from these two components can be collected. During the operation of the rolling module 20 and the stretching assembly 32, water may drip. The design of the water collecting trough 61 allows this water to be guided into the water collecting box 60. By collecting and discharging water in a timely manner, the risk of water corroding the metal parts of the equipment is reduced. The design of the water collecting box 60 and the water collecting trough 61 helps prevent water from accumulating around the equipment and keeps the production environment clean and dry.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A stretching mechanism for producing household paper, characterized by: It includes a frame, a rolling module, a hot air module, a rewinding module and a visual monitoring module; the rolling module and the hot air module are both arranged on the frame; the rolling module, the hot air module and the rewinding module are arranged in sequence along the conveying direction of the daily paper; the hot air module includes a hot air component and a stretching component both arranged on the frame, the hot air component is arranged above the stretching component, the hot air component is used to generate hot air and convey the hot air to the daily paper in the stretching component; the visual monitoring module is used to photograph the stretching condition of the daily paper; the daily paper is pre-pressed by the rolling module and then conveyed to the stretching component, and finally conveyed to the rewinding module for rewinding.

2. The stretching mechanism for producing household paper according to claim 1, characterized in that: The hot air assembly includes a fan, a heating element and an air duct; the fan is arranged on the frame, the air duct is connected to the fan, the heating element is arranged in the air duct and is used to generate heat; the air outlet of the air duct is arranged opposite to the stretching assembly.

3. The stretching mechanism for producing household paper according to claim 2, characterized in that: The stretching assembly includes a driving motor, a first stretching roller and a second stretching roller; the first stretching roller and the second stretching roller are arranged downward in sequence along the vertical direction of the frame; the output end of the driving motor is connected to the first stretching roller or the second stretching roller, and the first stretching roller is transmission-connected to the second stretching roller.

4. The stretching mechanism for producing household paper according to claim 3, characterized in that: A heating wire is provided in the first stretching roller and / or the second stretching roller.

5. The stretching mechanism for producing household paper according to claim 3, characterized in that: The connecting shaft of the first stretching roller and the connecting shaft of the second stretching roller are both provided with gears, and the two gears are meshed with each other.

6. The stretching mechanism for producing household paper according to claim 3, characterized in that: The stretching assembly also includes an elastic structure, which includes a pressure rod, a connecting seat and an elastic member. The connecting seat is arranged on the frame, the pressure rod is threadedly connected to the connecting rod, and the pressure rod is connected to the connecting shaft of the first stretching roller; the elastic member is arranged between the pressure rod and the frame.

7. The stretching mechanism for producing household paper according to claim 6, characterized in that: The elastic member is a spring.

8. The stretching mechanism for producing household paper according to claim 1, characterized in that: The hot air module also includes a mounting plate and a cylinder, the hot air component is arranged on the mounting plate; one end of the mounting plate is rotatably connected to the frame; the cylinder is arranged on the frame, and the mounting plate is connected to the telescopic end of the cylinder.

9. The stretching mechanism for producing household paper according to claim 1, characterized in that: The rolling module includes a high-pressure roller and a soft calendering roller, which are arranged in sequence along the conveying direction of household paper. The high-pressure roller is used to perform initial pressing on the paper; the soft calendering roller performs calendering treatment on the paper.

10. The stretching mechanism for producing household paper according to claim 1, characterized in that: It also includes a water collecting box, which is arranged on the frame and located at the bottom of the rolling module and the stretching component. The water collecting box is provided with a water collecting trough, which is arranged towards the rolling module.

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