Processing method of fireproof plate with efficient gum dipping penetration

Abstract

The processing method comprises the following steps: conveying kraft paper into an impregnation frame which is fully impregnated with phenolic resin, carrying out vibration treatment, enabling the kraft paper to upwards float out of the liquid level, injecting a mixed glue solution of the phenolic resin and a light curing agent into the upper surface of the kraft paper through an injection mechanism, and carrying out curing treatment on the upper surface of the kraft paper; meanwhile, high-pressure air injection is conducted on the upper surface of the kraft paper through an air injection mechanism, the kraft paper obtained after permeation continues to be conveyed to the drying oven to be dried, and then the kraft paper is collected in a winding mode; and finally, cutting the dried kraft paper, and pressing at high temperature to form the fireproof plate. When kraft paper is subjected to gum dipping, high-frequency vibration is started, the activity of fireproof gum is promoted, meanwhile, permeation treatment is carried out after gum dipping is completed, gum liquid is further injected, compressed air injection is matched, gum dipping permeation is improved, the adherence between subsequent laminated paper layers is guaranteed, and the fireproof performance is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of fireproof boards, and in particular relates to a method for processing fireproof boards with high-efficiency glue dipping and penetration. Background Art

[0002] With the continuous development of the modern building materials industry, in order to meet users' demand for higher quality building materials, various fireproof and heat-insulating building materials have emerged. However, due to the uneven quality of fireproof materials and the wide variety of building materials with other characteristics, the single performance of building materials can no longer meet people's needs. Fireproof board, also known as fire-resistant board, is scientifically called thermosetting resin impregnated paper high-pressure laminate. It is a fire-resistant building material for surface decoration. It has rich surface colors, textures and special logistics performance. It is widely used in interior decoration, furniture, kitchen cabinets, laboratory tables, exterior walls and other fields. However, the fireproof board on the market currently has poor permeability of fireproof glue during production and molding, which weakens the adhesion between kraft paper during pressing and molding. In subsequent use, it peels off with time or changes in ambient temperature and humidity, which seriously affects product quality. Summary of the invention

[0003] In view of this, the technical problem to be solved by the present invention is to provide a method for processing fireproof boards with efficient glue penetration, so as to avoid the trouble that the glue penetration of fireproof boards in the past was poor, affecting the quality of the fireproof boards after pressing.

[0004] In order to solve the above technical problems, the present invention discloses a method for processing a fireproof board with high-efficiency glue penetration, which comprises: Step a, decorating paper treatment: immersing the decorating paper into a reaction tank of melamine resin, drying and cutting the soaked decorating paper; this is used to form surface decoration and improve the wear resistance of the surface layer of the fireproof board.

[0005] Step b, kraft paper dipping: convey the kraft paper to the upper side of the dipping frame soaked with phenolic resin, drive the kraft paper down and immerse it in the dipping frame through a motor, a vibration motor is arranged at the bottom of the dipping frame, and the vibration motor vibrates the dipping frame at a high frequency, and the immersion time is 30-60 seconds; vibration increases the activity of the dipping glue, thereby increasing the degree of dipping of the kraft paper.

[0006] Step c, penetration: after the dipping is completed, the kraft paper is floated upwards out of the liquid surface, and then the mixed glue liquid of phenolic resin and light curing agent is injected into the upper surface of the kraft paper through the injection mechanism, and at the same time, the upper surface of the kraft paper is sprayed with high pressure through the jet mechanism; the combination of injection and jet can further improve the activity of the glue liquid after dipping and improve the penetration efficiency.

[0007] Step d, drying and winding: the infiltrated kraft paper is continuously transported to an oven for drying, and then the kraft paper is collected by winding; Step e, pressing and forming: cutting the dried kraft paper, pressing the cut kraft paper and decorative paper at high temperature to form a fireproof layer, laying the manufactured fireproof layer on the board surface to form a formed fireproof board. The laminated paper can be 10-30mm thick according to the needs.

[0008] According to one embodiment of the present invention, the injection mechanism comprises a plurality of injection needles spaced apart from each other.

[0009] According to an embodiment of the present invention, the air jet mechanism comprises a plurality of suction cup nozzles which are spaced apart from each other.

[0010] According to an embodiment of the present invention, rubber springs are arranged at the bottom of four sides of the dipping frame.

[0011] According to one embodiment of the present invention, in the above step c, the injection time is 3-5 seconds, the jet time is 6-10 times, and the two are staggered at least 3 times.

[0012] According to one embodiment of the present invention, the drying process in the above step d is supplemented with ultraviolet light irradiation.

[0013] Compared with the prior art, the present invention can achieve the following technical effects: By turning on high-frequency vibration when the kraft paper is dipped in glue, the activity of the fire-retardant glue is promoted. At the same time, after the dipping is completed, the penetration treatment is carried out, and the glue liquid is further injected and combined with compressed jet spraying to improve the penetration of the dipping glue, ensure the closeness between the subsequent laminated paper layers, and improve the fire resistance.

[0014] Of course, any product implementing the present invention does not necessarily need to achieve all of the above-mentioned technical effects at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 It is a flow chart of a method for processing a fireproof board with high-efficiency glue penetration according to an embodiment of the present invention. DETAILED DESCRIPTION

[0016] The following will describe the implementation methods of the present invention in detail with reference to the accompanying drawings and embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0017] Please refer to Figure 1 , Figure 1 It is a flow chart of a method for processing a fireproof board with high-efficiency glue penetration according to an embodiment of the present invention.

[0018] As shown in the figure, a method for processing a fireproof board with high efficiency of dipping and penetration includes: Step a, decorating paper treatment: immersing the decorating paper in a reaction tank of melamine resin, and drying and cutting the soaked decorating paper; Step b, kraft paper dipping: convey the kraft paper to the upper side of the dipping frame soaked with phenolic resin, drive the kraft paper down and immerse it in the dipping frame through a motor, a vibration motor is provided at the bottom of the dipping frame, and the vibration motor performs high-frequency vibration on the dipping frame, and the dipping time is 30-60 seconds; Step c, infiltration: after the dipping is completed, the kraft paper is floated upward out of the liquid surface, and then the mixed glue of phenolic resin and light curing agent is injected into the upper surface of the kraft paper through the injection mechanism, and at the same time, the upper surface of the kraft paper is sprayed with high pressure through the jet mechanism; Step d, drying and winding: the infiltrated kraft paper is continuously transported to an oven for drying, and then the kraft paper is collected by winding; Step e, pressing and molding: cutting the dried kraft paper, pressing the cut kraft paper and decorative paper at high temperature to form a fireproof layer, and laying the manufactured fireproof layer on the board surface to form a molded fireproof board.

[0019] In one embodiment of the present invention, the fireproof board is laminated by multiple layers of kraft paper, with decorative paper adhered to the upper surface and adhesive coated on the lower surface. The decorative paper is a surface decoration to achieve a decorative effect, and a transparent wear-resistant layer can also be adhered to its surface, preferably a PET film layer. The kraft paper layer is continuously hot-pressed to form a fireproof board layer after being dipped in glue, infiltrated, and dried, and the fireproof glue is coated while ensuring strength to achieve fireproof performance.

[0020] When the kraft paper layer is dipped in glue, a vibration motor can be installed at the bottom of the dipping frame to increase the activity of the glue liquid so that it can fully soak the surface of the kraft paper layer. Rubber springs are set at the bottom around to reduce the vibration effect on the machine body.

[0021] After the dipping, further penetration treatment can be performed. The present invention can greatly improve the penetration efficiency of the glue liquid by interlacing injection and jetting. Specifically, the injection mechanism has a plurality of injection needles spaced apart, which can inject the mixed glue liquid of phenolic resin and light curing agent into the surface of the kraft paper layer by high-pressure injection to enhance its absorption efficiency. At the same time, after the injection is completed, the jetting mechanism continues to operate, and the compressed air is filled into the suction cup nozzle. The suction cup is positioned, and the nozzle in the center of the suction cup performs air punching to further accelerate the penetration of the glue liquid, so that the kraft paper layer fully absorbs the fireproof glue liquid and improves its fireproof performance.

[0022] Preferably, in step c, the injection time is 3-5 seconds, the jet time is 6-10 times, and the two are staggered at least 3 times, that is, repeated at least 3 times to ensure complete penetration of the glue.

[0023] It is worth mentioning that in the present invention, ultraviolet light irradiation is added to the drying process in step d, and a photocuring agent is added to the glue solution, which has strong applicability and stable drying.

[0024] In summary, the present invention promotes the activity of fireproof glue by starting high-frequency vibration when the kraft paper is dipped in glue, and carries out penetration treatment after the dipping is completed, further injects glue liquid and cooperates with compressed jet spraying to improve the penetration of dipping, ensure the closeness between the subsequent laminated paper layers, and improve the fire resistance.

[0025] The above description shows and describes several preferred embodiments of the present invention, but as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. Changes and variations made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A method for processing fireproof panels with high efficiency of dipping and penetration, characterized in that: include: Step a, decorating paper treatment: immersing the decorating paper in a reaction tank of melamine resin, and drying and cutting the soaked decorating paper; Step b, kraft paper dipping: convey the kraft paper to the upper side of the dipping frame soaked with phenolic resin, drive the kraft paper down and immerse it in the dipping frame through a motor, a vibration motor is provided at the bottom of the dipping frame, and the vibration motor performs high-frequency vibration on the dipping frame, and the dipping time is 30-60 seconds; Step c, infiltration: after the dipping is completed, the kraft paper is floated upward out of the liquid surface, and then the mixed glue of phenolic resin and light curing agent is injected into the upper surface of the kraft paper through the injection mechanism, and at the same time, the upper surface of the kraft paper is sprayed with high pressure through the jet mechanism; Step d, drying and winding: the infiltrated kraft paper is continuously transported to an oven for drying, and then the kraft paper is collected by winding; Step e, pressing and molding: cutting the dried kraft paper, pressing the cut kraft paper and decorative paper at high temperature to form a fireproof layer, and laying the manufactured fireproof layer on the board surface to form a molded fireproof board.

2. The method for processing fireproof board with high efficiency of dipping and penetration according to claim 1, characterized in that: The injection mechanism comprises a plurality of injection needles spaced apart from each other.

3. The method for processing fireproof board with high efficiency of dipping and penetration according to claim 1, characterized in that: The jet mechanism has a plurality of suction cup nozzles which are spaced apart from each other.

4. The method for processing fireproof board with high efficiency of dipping and penetration according to claim 1, characterized in that: The bottom of the dipping frame is provided with rubber springs.

5. The method for processing fireproof board with high efficiency of dipping and penetration according to claim 1, characterized in that: In the step c, the injection time is 3-5 seconds, the jet time is 6-10 times, and the two are staggered at least 3 times.

6. The method for processing fireproof board with high efficiency of dipping and penetration according to claim 1, characterized in that: The drying process in step d is supplemented with ultraviolet light irradiation.

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