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CN-122008474-A - Joint veneering molding system and production method of integral cabinet flame-retardant composite material

CN122008474ACN 122008474 ACN122008474 ACN 122008474ACN-122008474-A

Abstract

The invention discloses a bonding veneering molding system and a production method of an integral cabinet flame-retardant composite material, which relate to the technical field of flame-retardant composite material production and comprise a mold unit, a diaphragm positioning and conveying unit, a base material feeding unit, a positive and negative pressure control unit, a heating and temperature control unit and an intelligent control unit, wherein the intelligent control unit is in bidirectional communication connection with the diaphragm positioning and conveying unit, the base material feeding unit, the positive and negative pressure control unit and the heating and temperature control unit, and the problems that a decorative film layer is easy to shift and additional gluing is required in the traditional process are solved through integrating the intelligent control unit and the positive and negative pressure control unit. Vacuum is pumped to the die unit in the preset stage to enable the membrane to be accurately adsorbed, and the pressure is switched to positive pressure in the filling and curing stage to compact the base material and promote the melting or crosslinking of interface molecules. Thus realizing the integrated combination without adhesive.

Inventors

  • WAN XIAOLONG
  • LIU YUANHANG

Assignees

  • 浙江雷拓家居有限公司

Dates

Publication Date
20260512
Application Date
20260309

Claims (8)

  1. 1. The bonding veneering molding system of the flame-retardant composite material of the integral cabinet is characterized by comprising a mold unit (1), a diaphragm positioning and conveying unit (2), a base material feeding unit (3), a positive and negative pressure control unit (4), a heating and temperature control unit (5) and an intelligent control unit (6), wherein the intelligent control unit (6) is in bidirectional communication connection with the diaphragm positioning and conveying unit (2), the base material feeding unit (3), the positive and negative pressure control unit (4) and the heating and temperature control unit (5), and the diaphragm positioning and conveying unit (2), the base material feeding unit (3), the positive and negative pressure control unit (4), and the heating and temperature control unit (5) are in bidirectional communication connection with the mold unit (1); The film positioning and conveying unit (2) is used for accurately conveying and fixing the decorative film layer with flame retardant property in the cavity of the die unit (1), so that the decorative surface of the decorative film layer faces the surface of the die cavity and the bonding surface faces the inside of the die cavity; and the positive and negative pressure control unit (4) is connected with the die unit (1) and is used for selectively establishing a negative pressure environment or a positive pressure environment in the cavity at different stages in the forming process so as to respectively realize the accurate adsorption of the decorative film layer and the compaction of the base material.
  2. 2. The bonding veneer molding system of an integral cabinet flame retardant composite material according to claim 1, wherein the positive and negative pressure control unit (4) operates as follows: in a preset stage of the decorative film layer, vacuumizing a mold cavity to enable the decorative film layer to be closely adsorbed on the surface of the mold cavity, and preventing the diaphragm from shifting when the base material is injected; In the filling and curing stage of the base material, the base material is switched into a positive pressure environment so as to compact the base material and promote the melting or crosslinking reaction of the molecular layer on the joint surface of the base material and the decorative film layer.
  3. 3. The bonding facing molding system of the integral cabinet flame-retardant composite material according to claim 1, wherein the bonding facing molding system further comprises a surface activation treatment unit between the film positioning and conveying unit (2) and the mold unit (1), wherein the surface activation treatment unit is a low-temperature plasma generating device, is arranged between the film positioning and conveying unit (2) and the mold unit (1), and is arranged at the output end of the substrate feeding unit (3) and is used for carrying out online activation treatment on the bonding surface of the decorative film layer and the surface of the flame-retardant composite material substrate before filling the substrate so as to introduce active groups to improve interface bonding strength.
  4. 4. The bonding veneer molding system of an integral cabinet flame retardant composite material according to claim 1, wherein the base material feeding unit (3) is a multi-layer co-injection or co-pressure feeding device for providing a flame retardant composite material with a gradient function, which after molding forms a resin rich dense surface layer close to a decorative film layer and a lightweight reinforcing layer located inside.
  5. 5. The bonding veneering molding system of the integral cabinet flame-retardant composite material according to claim 1, wherein the mold unit (1) is integrated with a near infrared spectrum sensor, the near infrared spectrum sensor is connected with the intelligent control unit (6) and used for detecting the solidification degree of a bonding interface on line, and the intelligent control unit (6) automatically adjusts the technological parameters of the next molding cycle according to the detection result.
  6. 6. The bonding facing molding system of the integral cabinet flame-retardant composite material according to claim 1, wherein the mold unit (1) is a resin transfer molding mold or a compression molding mold suitable for a special-shaped curved surface or a deep cavity structure, and the decorative film layer conveyed by the film positioning and conveying unit (2) is a directional stretching film with high ductility.
  7. 7. A joining veneer molding system of an integral cabinet flame-retardant composite material, adopting the production method of the integral cabinet flame-retardant composite material as set forth in any one of claims 1 to 6, characterized by comprising the following steps: S1, in-mold decoration pretreatment, namely presetting a decorative film layer with flame retardant property in a cavity of a mold unit (1) through a film positioning and conveying unit (2), and vacuumizing the cavity through a positive and negative pressure control unit (4) to enable the decorative film layer to be closely adsorbed on the surface of the mold; s2, filling and forming a base material, namely injecting or pressing a flame-retardant composite material base material into a die cavity preset with the decorative film layer through a base material feeding unit (3); S3, in-mold one-time solidification and combination step, namely precisely controlling the temperature of the mold through a heating and temperature control unit (5), simultaneously switching to a positive pressure environment through a positive and negative pressure control unit (4), enabling the flame-retardant composite material substrate to flow, fill and solidify in the mold, and enabling the bonding surface of the substrate and the decorative film layer to undergo a molecular-level melting or crosslinking reaction by utilizing the temperature and the pressure to form an integrated bonding interface without an adhesive layer; and S4, demolding, namely opening the mold, and taking out the flame-retardant composite material cabinet body member with the surface covered with the permanent decorative protection layer.
  8. 8. The bonding veneer molding system of the integral cabinet flame-retardant composite material according to claim 7, wherein in the step S1, the decorative film layer is of a multi-layer composite structure and comprises a scratch-resistant transparent flame-retardant layer on the outer surface, a pattern printing layer in the middle and a functional thermal fusion bonding layer on the inner surface, wherein the material melting point of the functional thermal fusion bonding layer is lower than the curing temperature of the flame-retardant composite material base material.

Description

Joint veneering molding system and production method of integral cabinet flame-retardant composite material Technical Field The invention relates to the technical field of flame-retardant composite material production, in particular to a joint veneer molding system and a production method of an integral cabinet flame-retardant composite material. Background The flame-retardant composite material for the integral cabinet is a high-performance material specially designed for scenes such as furniture, electrical cabinets and energy storage cabinets, is formed by compounding a flame-retardant base material and a functional veneering layer, and has the advantages of fire prevention safety, structural strength and environmental protection durability. According to the patent name, the production line and the production process of the flame-retardant heat-insulation composite board are disclosed in CN115593718A, 2023-01-13, the transportation device is suitable for transporting boards, the cleaning device is arranged above the transportation device and is suitable for cleaning the boards transported by the transportation device, the compacting device is arranged above the transportation device and is arranged on one side of the cleaning device, the compacting device is suitable for compacting the cleaned boards, the semi-transportation device is arranged above the transportation device and is arranged on one side of the compacting device, the transportation device is suitable for cleaning and gluing the compacted boards and then transporting the boards, the cleaning of the boards is realized, glue can be coated at part of the positions of the boards, the situation that the outer package is difficult to adhere after the whole glue is coated on the boards is avoided, and the waste of the glue is avoided. Based on the prior art, the existing bonding facing forming system and production method of the integral cabinet flame-retardant composite material also have the following problems that in the traditional process, when a base material is injected, a preset decorative film layer is easy to deviate or fold, so that the appearance defect of a product is even scrapped, and the traditional method generally depends on coating an adhesive on a bonding surface to realize bonding of the base material and the film layer, so that the working procedure and the cost are increased, and the risks of ageing of an adhesive layer, poor environmental protection and insufficient bonding strength are also present. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a bonding veneering molding system and a production method of an integral cabinet flame-retardant composite material, which solve the problems that in the traditional process, when a base material is injected, a preset decorative film layer is easy to deviate or fold, so that the appearance defect of a product is even scrapped, and the traditional method generally relies on coating an adhesive on a bonding surface to realize the bonding of the base material and the film layer, thereby not only increasing the working procedure and the cost, but also solving the problems of ageing of a glue layer, poor environmental protection and insufficient bonding strength. The invention aims at realizing the technical scheme that the bonding veneering molding system of the integral cabinet flame-retardant composite material comprises a die unit, a membrane positioning and conveying unit, a substrate feeding unit, a positive and negative pressure control unit, a heating and temperature control unit and an intelligent control unit, wherein the intelligent control unit is in bidirectional communication connection with the membrane positioning and conveying unit, the substrate feeding unit, the positive and negative pressure control unit and the heating and temperature control unit, and the membrane positioning and conveying unit, the substrate feeding unit, the positive and negative pressure control unit and the heating and temperature control unit are in bidirectional communication connection with the die unit; The film positioning and conveying unit is used for accurately conveying and fixing the decorative film layer with flame retardant property in the cavity of the die unit, so that the decorative surface of the decorative film layer faces the surface of the die cavity, and the bonding surface faces the inside of the die cavity; and the positive and negative pressure control unit is connected with the die unit and is used for selectively establishing a negative pressure environment or a positive pressure environment in the cavity at different stages in the forming process so as to respectively realize the accurate adsorption of the decorative film layer and the compaction of the base material. Preferably, the positive and negative voltage control unit comprises the following operation steps: in a preset stage of the decorative film layer, vacuumizing a m