Drying device for melamine impregnated paper processing

Abstract

The utility model discloses a kind of melamine impregnated paper processing drying device, including drying oven main body, infrared lamp tube and guide roller are arranged in drying oven main body, the upper end of drying oven main body is provided with glue scraping mechanism, the top of drying oven main body is provided with waste gas purification mechanism, glue scraping mechanism includes support roller, hanger and scraper, scraper is installed in the lower end of hanger and its sliding connection, support roller is located in the lower end of scraper, support roller is rotatably connected with drying oven main body, recycling chamber is arranged in drying oven main body, the upper end of recycling chamber is provided with reflux plate. The utility model is provided with glue scraping mechanism in the upper end of drying oven main body, so that excess resin can flow to both sides along the front end of scraper, accurately guided to recycling chamber by flow guide groove, two groups of opposite arrangement reflux plate further guide resin into recycling chamber, and reduce the influence of airflow in drying oven by reducing opening area, prevent resin from solidifying too fast, improve resin recovery efficiency.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, specifically a drying device for processing melamine-impregnated paper. Background Technology

[0002] Melamine-impregnated paper, also known as melamine-impregnated adhesive paper, is a type of unbleached base paper or printed decorative paper that has been impregnated with amino resin and dried to a certain degree, resulting in a specific resin content and volatile matter content. This type of paper offers an attractive decorative effect and excellent physical properties, and is widely used as a veneer material for furniture products such as cabinets, wardrobes, and engineered wood flooring. It is also used as a finishing layer on engineered wood panels, improving their aesthetics, abrasion resistance, scratch resistance, and chemical corrosion resistance.

[0003] The production process of melamine-impregnated paper requires at least two resin impregnation stages and two drying stages. Drying requires a drying device, but existing devices often experience resin overflow into the drying chamber, wasting raw materials and adhering to components such as the chamber, heating elements, conveyor belts, and fans. Over time, the resin hardens, forming deposits. These deposits are difficult to clean, increasing the difficulty of equipment cleaning and maintenance, and potentially reducing equipment efficiency. The hardened resin deposits covering heating elements (such as infrared lamps and heating wires) hinder effective heat transfer, reducing drying efficiency. Excessive resin overflow, especially at high temperatures, may pose a fire risk. Therefore, a drying device for melamine-impregnated paper processing is needed to address these problems. Utility Model Content

[0004] The purpose of this utility model is to provide a drying device for processing melamine-impregnated paper, which has the advantages of good environmental performance and less glue overflow. It solves the problems in the prior art that a large amount of glue overflows during the processing of melamine-impregnated paper, causing waste of raw materials, affecting the heat conduction efficiency of equipment, and posing certain safety hazards.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drying device for processing melamine-impregnated paper, comprising a drying box body, an infrared lamp and a guide roller disposed inside the drying box body, a glue scraping mechanism disposed at the upper end of the drying box body, and a waste gas purification mechanism disposed at the top of the drying box body;

[0006] The scraping mechanism includes a support roller, a hanger, and a scraper. The scraper is installed at the lower end of the hanger and slidably connected to it. The support roller is located at the lower end of the scraper and is rotatably connected to the main body of the drying chamber. A recovery chamber is provided inside the main body of the drying chamber, and a return plate is provided at the upper end of the recovery chamber.

[0007] In a preferred embodiment of the drying device for melamine-impregnated paper processing according to this utility model, the upper end of the scraper is provided with a rotatably connected screw rod, the hanger is provided with a screw hole, and the screw rod passes through the screw hole and is threadedly connected to the hanger.

[0008] In a preferred embodiment of the drying device for processing melamine-impregnated paper according to this utility model, the upper end face of the scraper is provided with a scale rod, which passes through the hanger and is slidably connected to it.

[0009] In a preferred embodiment of the drying device for melamine-impregnated paper processing according to this utility model, the scraper has an isosceles triangular shape, and a guide groove is provided on the inner end face of the drying box body near the scraper.

[0010] In a preferred embodiment of the drying device for processing melamine-impregnated paper according to this utility model, the reflux plate consists of two sets of stainless steel plates on opposite sides, with the two sets of reflux plates located on opposite sides of the guide channel.

[0011] In a preferred embodiment of the drying apparatus for processing melamine-impregnated paper according to this utility model, the side wall of the recovery chamber is provided with a heat insulation cavity.

[0012] As a preferred embodiment of the drying device for melamine-impregnated paper processing according to this utility model, the exhaust gas purification mechanism includes a blower and an air filter box. An air filter element is installed inside the air filter box, and the air filter box is connected to the top of the drying chamber and the blower through a corrugated pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model features a scraping mechanism at the top of the drying chamber, allowing excess resin to flow along the front end of the scraper to both sides and be precisely guided to the recovery chamber via a guide channel. Two sets of reflux plates arranged on opposite sides further guide the resin into the recovery chamber. By reducing the opening area, the influence of airflow inside the drying chamber is minimized, preventing the resin from solidifying too quickly and improving the resin recovery efficiency. In addition, a heat insulation cavity is provided on the side wall of the recovery chamber to effectively isolate the high temperature inside the drying chamber, preventing the resin from excessively volatilizing or solidifying due to excessive temperature, further improving the resin recycling rate.

[0015] 2. This utility model allows for flexible adjustment of the distance between the scraper and the support roller through the threaded connection between the lead screw and the screw hole, thereby achieving precise control over the resin retention thickness. With the help of the scale rod, operators can intuitively read and set the scraper position, ensuring that the produced melamine-impregnated paper has a uniform thickness and improving product quality consistency.

[0016] 3. This utility model is equipped with an exhaust gas purification mechanism, including a blower, an air filter box, and an air filter element. The blower draws air from the drying chamber to accelerate the volatilization process of resin on the paper surface, while introducing the generated exhaust gas into the air filter box. The air filter element can effectively filter out volatile resin particles and harmful gases, ensuring that the emitted gas meets environmental protection standards and protecting the working environment and employee health. Attached Figure Description

[0017] Figure 1 This is a first-view overall structural diagram of the present invention;

[0018] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This is a schematic diagram of the overall structure of the present invention from a second perspective;

[0020] Figure 4 This is a cross-sectional view of the present invention.

[0021] In the diagram: 1. Drying oven body; 101. Guide roller; 102. Infrared lamp; 103. Guide channel; 104. Recovery chamber; 105. Return plate; 106. Heat insulation chamber; 2. Glue scraping mechanism; 210. Scraper; 211. Lead screw; 220. Hanger; 221. Screw hole; 212. Scale rod; 230. Support roller; 3. Exhaust gas purification mechanism; 310. Air filter box; 311. Air filter element; 320. Blower. Detailed Implementation

[0022] Please see Figures 1-4 A drying device for processing melamine-impregnated paper includes a drying box body 1, an infrared lamp tube 102 and a guide roller 101 are installed inside the drying box body 1, a scraping glue mechanism 2 is installed at the upper end of the drying box body 1, and a waste gas purification mechanism 3 is installed at the top of the drying box body 1.

[0023] The scraping mechanism 2 includes a support roller 230, a hanger 220 and a scraper 210. The scraper 210 is installed at the lower end of the hanger 220 and slidably connected to it. The support roller 230 is located at the lower end of the scraper 210 and is rotatably connected to the drying box body 1. A recovery chamber 104 is provided inside the drying box body 1, and a return plate 105 is provided at the upper end of the recovery chamber 104.

[0024] Furthermore, the upper end of the scraper 210 is provided with a rotatably connected lead screw 211, and the hanger 220 is provided with a screw hole 221, through which the lead screw 211 passes and is threadedly connected to the hanger 220.

[0025] By rotating the lead screw 211, the distance between the scraper 210 and the support roller 230 is adjusted, thereby adjusting the thickness of the resin retained by the scraper 210, making the produced melamine impregnated paper more uniform in thickness.

[0026] Furthermore, a scale rod 212 is provided on the upper end face of the scraper 210, and the scale rod 212 passes through the hanger 220 and is slidably connected to it.

[0027] The scale rod 212 allows for easy observation of the distance between the scraper 210 and the support roller 230, thus enabling more precise and convenient adjustment of the scraper 210 position.

[0028] Furthermore, the scraper 210 has an isosceles triangular shape, and a guide groove 103 is provided on the inner end face of the drying oven body 1 near the scraper 210.

[0029] When the scraper 210 removes excess resin, the resin can flow to both sides along the front end of the scraper 210, and thus flow more accurately from the guide channel 103 to the recovery chamber 104.

[0030] Furthermore, the return plate 105 consists of two sets of stainless steel plates on opposite sides, with the two sets of return plates 105 located on both sides of the guide channel 103.

[0031] The reflux plate 105 guides the glue to flow into the recovery chamber 104. At the same time, the reflux plate 105 reduces the opening area of ​​the recovery chamber 104, thereby reducing the impact of airflow in the drying oven on the resin in the recovery chamber 104 and preventing the resin from solidifying too quickly.

[0032] Furthermore, the side wall of the recovery chamber 104 is provided with a heat insulation cavity 106.

[0033] The insulation chamber 106 reduces the impact of the temperature inside the drying chamber on the recovery chamber 104, preventing the resin in the recovery chamber 104 from becoming too hot and volatilizing or solidifying, thereby improving the resin recovery rate.

[0034] Furthermore, the exhaust gas purification mechanism 3 includes a blower 320 and an air filter box 310. An air filter element 311 is installed inside the air filter box 310. The air filter box 310 is connected to the top of the drying chamber and the blower 320 through a corrugated pipe.

[0035] The air in the drying chamber is extracted by the blower and the exhaust fan 320, which accelerates the evaporation of resin on the paper surface and filters out the evaporating resin and harmful gases to avoid harm to the health of employees.

[0036] When using this drying device, turn on the infrared lamp 102 and preheat according to the set program. Smoothly feed the paper impregnated with melamine resin into the main body 1 of the drying chamber, starting from the support roller 230, ensuring that the paper passes through the drying area straight and without wrinkles. According to production needs, adjust the distance between the scraper 210 and the support roller 230 by rotating the lead screw 211 to control the resin retention thickness and ensure uniform paper thickness. Observe the scale rod 212 to ensure accurate adjustment. The scraper 210 scrapes off excess resin from the paper surface. The resin flows to both sides along the front end of the isosceles triangular scraper 210 and enters the recovery chamber 104 precisely through the guide groove 103. The return plate 105 guides the resin inflow and reduces the impact of airflow, keeping the resin in a liquid state for easy recovery. Turn on the blower 320 to draw the exhaust gas in the drying chamber to the air filter box 310 through the corrugated pipe. The air filter element 311 effectively filters out the volatile resin particles and harmful gases. The purified air is discharged to protect the working environment and the health of employees.

[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drying device for processing melamine-impregnated paper, comprising a drying chamber body (1), wherein an infrared lamp (102) and a guide roller (101) are disposed inside the drying chamber body (1), characterized in that: The upper end of the drying box body (1) is provided with a glue scraping mechanism (2), and the top of the drying box body (1) is provided with a waste gas purification mechanism (3). The scraping mechanism (2) includes a support roller (230), a hanger (220) and a scraper (210). The scraper (210) is installed on the lower end of the hanger (220) and slidably connected thereto. The support roller (230) is located at the lower end of the scraper (210). The support roller (230) is rotatably connected to the drying chamber body (1). A recovery chamber (104) is provided inside the drying chamber body (1). A return plate (105) is provided at the upper end of the recovery chamber (104).

2. The drying apparatus for processing melamine-impregnated paper according to claim 1, characterized in that: The upper end of the scraper (210) is provided with a rotatably connected lead screw (211), and the hanger (220) is provided with a screw hole (221). The lead screw (211) passes through the screw hole (221) and is threadedly connected to the hanger (220).

3. The drying apparatus for processing melamine-impregnated paper according to claim 2, characterized in that: The scraper (210) has a scale rod (212) on its upper end surface, and the scale rod (212) passes through the hanger (220) and is slidably connected to it.

4. The drying apparatus for processing melamine-impregnated paper according to claim 3, characterized in that: The scraper (210) has an isosceles triangular shape, and a guide groove (103) is provided on the inner end face of the drying box body (1) near the scraper (210).

5. A drying apparatus for processing melamine-impregnated paper according to claim 1, characterized in that: The reflux plate (105) consists of two sets of stainless steel plates on opposite sides, with the two sets of reflux plates (105) located on both sides of the guide channel (103).

6. A drying apparatus for processing melamine-impregnated paper according to claim 5, characterized in that: The side wall of the recovery chamber (104) is provided with a heat insulation cavity (106).

7. A drying apparatus for processing melamine-impregnated paper according to claim 1, characterized in that: The exhaust gas purification mechanism (3) includes a blower (320) and an air filter box (310). An air filter element (311) is installed inside the air filter box (310). The air filter box (310) is connected to the top of the drying chamber and the blower (320) through a corrugated pipe.

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