Wood grain paper processing and drying device
The drying device, which combines a condensing steam unit and an electric heating tube, solves the problem of insufficient temperature control precision in wood grain paper processing. It achieves efficient, uniform drying and energy-saving and environmentally friendly wood grain paper production, improves the quality and dimensional stability of finished products, and is suitable for the high-end decorative materials field.
Patent Information
- Application Number
- CN202522174362.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-15
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-15
AI Technical Summary
Traditional wood grain paper processing and drying equipment suffers from problems such as insufficient temperature control precision, uneven drying, high energy consumption, environmentally unfriendly exhaust emissions, and inflexible adjustment of process parameters. As a result, the quality and dimensional stability of finished wood grain paper products are poor, making it difficult to meet the application requirements of high-end decoration fields.
The drying device combines a condensing steam unit with an electric heating tube. The condensing steam unit achieves precise humidification through multi-stage atomizing nozzles and a closed-loop control system. The electric heating tube is made of high-temperature resistant alloy material and far-infrared radiation coating. It combines heat radiation and convection heat exchange to achieve uniform drying and is equipped with a waste heat recovery system.
It improves the finished product quality and dimensional stability of wood grain paper, reduces energy consumption and scrap rate, meets green manufacturing requirements, and is suitable for the production of high-precision wood grain transfer paper, especially for decorative paper and furniture veneer paper and other fields with strict requirements for flatness.
Smart Images
Figure CN224678426U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of papermaking machinery technology, specifically to a wood grain paper processing and drying device. Background Technology
[0002] Driven by the urgent demand for high-quality wood grain paper in the decorative materials industry, and with the increasing requirements for texture clarity, dimensional stability, and environmental performance in products such as furniture veneer paper and decorative paper, traditional hot air drying processes can no longer meet the production standards of high-precision wood grain transfer paper. The exhaust emissions and energy waste generated by traditional gas heating systems also contradict the current trend of green manufacturing. Against this backdrop, it is necessary to develop a new type of drying device that integrates efficient drying, precise humidity control, and energy conservation and environmental protection to solve the key technical bottlenecks in the wood grain paper processing.
[0003] However, it still has some drawbacks. For example, current wood grain paper processing and drying equipment suffers from insufficient temperature control precision, leading to uneven heating of the paper. Local overheating can easily cause carbonization, while insufficient temperature leaves residual moisture, severely affecting drying quality. Conventional equipment lacks a precise humidity regulation mechanism, causing the dried wood grain paper to warp and deform due to rapid water loss. This can easily lead to defects such as pattern misalignment and weak adhesion in subsequent pressing processes. Traditional hot air drying methods are energy-intensive and their exhaust emissions do not meet environmental protection requirements. Gas heating systems also suffer from slow response speed and large temperature fluctuations. In addition, existing equipment mostly uses a single drying mode, which cannot flexibly adjust process parameters according to different weights and moisture contents of wood grain paper, resulting in poor dimensional stability of finished products. The finished products are easily affected by environmental humidity during storage and transportation. For high-precision wood grain transfer paper, traditional equipment is difficult to achieve zoned temperature control. Densely patterned areas are prone to blurring due to excessive temperature, while blank areas are not dried sufficiently, seriously affecting product quality. These technical defects not only increase the scrap rate but also limit the application of wood grain paper in the high-end decoration field.
[0004] To address the aforementioned problems, this application proposes a drying apparatus for wood grain paper processing. Summary of the Invention
[0005] The purpose of this invention is to provide a wood grain paper processing and drying device to solve the problem of insufficient temperature control accuracy mentioned in the background art.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a wood grain paper processing and drying device, including a box body, a condensing steam unit fixedly connected to one end of the outer surface of the box body, and a fan unit fixedly connected to one end of the outer surface of the box body.
[0007] Preferably, a one-sided window is fixedly connected to one end of the outer surface of the enclosure.
[0008] Preferably, a base is fixedly connected to one end of the outer surface of the box, and a rolling mechanism is fixedly connected to one end of the outer surface of the base.
[0009] Preferably, a support connection unit is fixedly connected to the inner wall of the box, and an electric heating tube is fixedly connected to the outer surface of one end of the support connection unit.
[0010] Preferably, an outer groove is installed on the outer surface of one end of the fan unit, and an inner groove is movably connected to the outer surface of one end of the outer groove.
[0011] Preferably, a fan blade is movably connected to one end of the outer surface of the inner groove, and a central shaft is fixedly connected to one end of the outer surface of the fan blade.
[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention utilizes a condensing steam unit to facilitate precise humidification of paper after the high-temperature drying process, effectively solving problems such as paper edge warping and surface carbonization caused by over-drying in traditional processes. The condensing steam unit employs multi-stage atomizing nozzles and a closed-loop control system, which can adjust the steam injection volume in real time according to the paper's moisture content, ensuring uniform moisture absorption by the wood grain paper during the cooling stage and preventing deformation caused by localized stress concentration. Simultaneously, the trace lubricating components in the steam can fill the gaps between paper fibers, significantly improving the forming accuracy of subsequent molding processes. This is particularly suitable for the production requirements of high-precision wood grain transfer paper. From an energy efficiency perspective, the device reduces steam preparation energy consumption by recovering waste heat from the drying chamber's tail end to preheat the condensate, and the sprayed steam is recovered via a condenser. This process allows for recycling and aligns with green manufacturing trends. The resulting wood grain paper exhibits improved tear resistance and enhanced dimensional stability after impregnation, significantly reducing waste caused by pattern misalignment due to paper shrinkage. The coordinated control of temperature and humidity ensures more uniform curing of the adhesive layer on the paper surface, avoiding quality defects such as surface hardening and incomplete drying of the inner layer caused by traditional air cooling. This technology is particularly suitable for fields with stringent flatness requirements, such as decorative paper and furniture veneer paper. Its condensing steam unit can be integrated into existing drying production lines, requiring only modifications to the end cooling section for upgrades. Compared to simple cooling designs in similar patents, this solution actively adjusts the paper's moisture content, making the finished product less susceptible to environmental humidity during storage and transportation, significantly extending product shelf life and combining economic benefits with environmental value.
[0013] This invention utilizes an electric heating tube to facilitate efficient and uniform drying of wood grain paper. The heating tube is made of high-temperature resistant alloy material with a far-infrared radiation coating, enabling rapid heating to the required operating temperature. Through a combination of thermal radiation and convection heat transfer, the wood grain paper is heated evenly during transport, avoiding the problems of localized overheating or uneven drying that can occur with traditional hot air drying. The modular design of the heating tube allows for flexible adjustment of the heating area according to production needs, making it particularly suitable for continuous production of wide-width wood grain paper. Its fast response speed and high temperature control precision allow for accurate matching of drying process parameters for wood grain paper with different basis weights and moisture contents, significantly improving drying efficiency while reducing energy consumption. In terms of drying quality, the far-infrared radiation generated by the heating tube penetrates the surface of the wood grain paper, causing internal moisture to evaporate in a gradient from the inside out, effectively reducing warping caused by rapid water loss on the paper surface. To prevent warping and cracking, the electric heating tube, combined with an intelligent temperature control system, dynamically adjusts the temperature curve based on the evaporation characteristics of residual solvents from the impregnation process. This avoids bubbles or peeling of the adhesive layer due to rapid heat curing, thus improving the adhesion strength between the wood grain paper and the substrate. For high-precision wood grain transfer paper, the device can also use zoned temperature control technology to use lower temperatures in densely patterned areas to prevent carbonization, while appropriately increasing the temperature in blank areas to accelerate drying. This ensures that the texture clarity and color reproduction meet industry-level standards. In terms of energy saving and environmental protection, the electric heating tube has high thermal efficiency, saving more energy than traditional gas heating systems, and produces no combustion exhaust emissions, meeting green manufacturing requirements. Its rapid start-stop characteristics can be used in conjunction with the intermittent operation mode of the production line, and its standby power consumption is less than the rated power, making it particularly suitable for multi-batch, small-volume production scenarios. The device is also equipped with a waste heat recovery system, which uses the heat from the drying exhaust gas to preheat fresh air, further reducing energy consumption. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of a wood grain paper processing and drying device according to the present invention; Figure 2 This is a schematic diagram of the working structure of the wood grain paper processing and drying device of this utility model; Figure 3 This is a schematic diagram showing the details of the electric baking process of a wood grain paper drying device according to this utility model. Figure 4 This is a schematic diagram showing the details of the fan in a wood grain paper processing and drying device according to this utility model.
[0015] In the diagram: 1. Housing; 2. Condensing steam unit; 3. Fan unit; 4. Single-sided window; 5. Rotating machine; 6. Base; 7. Electric heating element; 8. Support connection unit; 9. Outer groove; 10. Inner groove; 11. Fan blade; 12. Central shaft. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0017] Please see Figures 1-4 A wood grain paper processing and drying device includes a housing 1, with a condensing steam unit 2 fixedly connected to the outer surface of one end of the housing 1. This unit provides precise humidification of the paper after the high-temperature drying process, effectively solving problems such as paper edge warping and surface carbonization caused by over-drying in traditional processes. The condensing steam unit 2 employs multi-stage atomizing nozzles and a closed-loop control system, which can adjust the steam injection volume in real time according to the paper's moisture content, ensuring uniform moisture absorption during the cooling stage and preventing deformation caused by localized stress concentration. Simultaneously, the trace lubricating components in the steam can fill the gaps between paper fibers, significantly improving the forming accuracy of subsequent molding processes. This is particularly suitable for the production needs of high-precision wood grain transfer paper. From an energy efficiency perspective, the device reduces steam preparation energy consumption by recovering waste heat from the tail of the drying chamber to preheat the condensate. Furthermore, the sprayed steam can be recycled after being recovered by the condenser, aligning with green manufacturing trends. The wood grain paper processed by this process exhibits improved tear resistance and increased dimensions after impregnation. The improved dimensional stability significantly reduces waste caused by pattern misalignment due to paper shrinkage. The coordinated control of temperature and humidity ensures more uniform curing of the adhesive layer on the paper surface, avoiding quality defects such as surface hardening and incomplete drying of the inner layer caused by traditional air cooling. This technology is particularly suitable for fields with strict requirements for flatness, such as decorative paper and furniture veneer paper. Its condensing steam unit 2 can be integrated into the existing drying production line, and only the end cooling section needs to be modified to achieve the upgrade. Compared with the simple cooling design in similar patents, this solution actively adjusts the moisture content of the paper, making the finished product less susceptible to the influence of environmental humidity during storage and transportation, significantly extending the product shelf life, and combining economic benefits with environmental value. A fan unit 3 is fixedly connected to the outer surface of one end of the box 1. An outer groove 9 is installed on the outer surface of one end of the fan unit 3. An inner groove 10 is movably connected to the outer surface of one end of the outer groove 9. A fan blade 11 is movably connected to the outer surface of one end of the inner groove 10. A central shaft 12 is fixedly connected to the outer surface of one end of the fan blade 11.
[0018] In this embodiment, as shown Figures 3-4As shown, a single-sided window 4 is fixedly connected to one end of the outer surface of the box 1, a base 6 is fixedly connected to one end of the outer surface of the box 1, a rolling machine 5 is fixedly connected to one end of the outer surface of the base 6, a support connection unit 8 is fixedly connected to the inner wall of the box 1, and an electric heating tube 7 is fixedly connected to one end of the outer surface of the support connection unit 8. For efficient and uniform drying of wood grain paper, the electric heating tube 7 is made of high-temperature resistant alloy material with a far-infrared radiation coating. It can quickly heat up to the required working temperature and, through a combination of heat radiation and convection heat transfer, ensures uniform heating of the wood grain paper during transport, avoiding the problems of localized overheating or uneven drying that may occur with traditional hot air drying. The modular design of the electric heating tube 7 allows for flexible adjustment of the heating area according to production needs, making it particularly suitable for continuous production of wide-width wood grain paper. Its fast response speed and high temperature control accuracy can precisely match the drying process parameters of wood grain paper with different basis weights and moisture contents, significantly improving drying efficiency while reducing energy consumption. From the perspective of drying quality, the far-infrared radiation generated by the electric heating tube 7... Radiation can penetrate the surface of wood grain paper, causing internal moisture to evaporate gradually from the inside out, effectively reducing warping and cracking caused by rapid water loss on the paper surface. The electric heating tube 7, combined with an intelligent temperature control system, can dynamically adjust the temperature curve according to the evaporation characteristics of the solvent remaining in the impregnation process, avoiding bubbles or peeling of the adhesive layer due to sudden heat curing, thus improving the adhesion strength between the wood grain paper and the substrate. For high-precision wood grain transfer paper, the device can also use zoned temperature control technology to use lower temperatures in densely patterned areas to prevent carbonization, and appropriately increase the temperature in blank areas to accelerate drying, ensuring that the texture clarity and color reproduction meet industry-level standards. In terms of energy saving and environmental protection, the electric heating tube 7 has high thermal efficiency, saving more energy than traditional gas heating systems, and has no combustion exhaust emissions, meeting the requirements of green manufacturing. Its rapid start-stop characteristics can be used in conjunction with the intermittent operation mode of the production line, and the standby power consumption is less than the rated power, making it particularly suitable for multi-batch, small-volume production scenarios. The device is also equipped with a waste heat recovery system, which uses the heat in the drying exhaust gas to preheat fresh air, further reducing energy consumption.
[0019] Working Principle: A wood grain paper processing and drying device. After the wood grain paper undergoes an impregnation process, it is conveyed to the inside of the chamber 1 by a rolling machine 5. The electric heating tube 7 is fixed to the inner wall of the chamber 1 through a support connection unit 8. Its high-temperature resistant alloy material and far-infrared radiation coating can rapidly heat up the paper. The paper is dried evenly through a combination of thermal radiation and convection heat exchange. The fan unit 3 recovers the residual heat at the tail of the drying chamber and preheats fresh air through an air duct system composed of an outer groove 9, an inner groove 10, and fan blades 11, forming a circulating hot air to assist the heating of the electric heating tube 7. When the wood grain paper passes through the drying area, the condensing steam unit 2 activates multi-stage atomizing nozzles and adjusts the steam injection volume in real time according to the paper moisture content detection data, so that the paper absorbs moisture evenly during the cooling stage and avoids deformation. The single-sided window 4 allows the operator to observe the drying status, while the base 6 ensures the overall stability of the device. Through the synergistic effect of the electric heating tube 7 and the condensing steam unit 2, this device achieves efficient drying and precise humidity control, significantly improving the dimensional stability and subsequent processing accuracy of the wood grain paper.
[0020] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
Claims
1. A wood grain paper processing and drying apparatus, comprising a housing (1), characterized in that: A condensing steam unit (2) is fixedly connected to one end of the outer surface of the box (1), and a fan unit (3) is fixedly connected to one end of the outer surface of the box (1).
2. The wood grain paper processing and drying apparatus according to claim 1, characterized in that: A one-sided window (4) is fixedly connected to one end of the outer surface of the box (1).
3. The wood grain paper processing and drying apparatus according to claim 2, characterized in that: A base (6) is fixedly connected to one end of the outer surface of the box (1), and a rolling machine (5) is fixedly connected to one end of the outer surface of the base (6).
4. The wood grain paper processing and drying apparatus according to claim 3, characterized in that: The inner wall of the box (1) is fixedly connected to a support connection unit (8), and an electric heating tube (7) is fixedly connected to the outer surface of one end of the support connection unit (8).
5. The wood grain paper processing and drying apparatus according to claim 4, characterized in that: An outer groove (9) is installed on the outer surface of one end of the fan unit (3), and an inner groove (10) is movably connected to the outer surface of one end of the outer groove (9).
6. The wood grain paper processing and drying apparatus according to claim 5, characterized in that: A fan blade (11) is movably connected to one end of the outer surface of the inner groove (10), and a central shaft (12) is fixedly connected to one end of the outer surface of the fan blade (11).