Production method of vehicle back-shelf board

A production method and rear shelf technology, which are applied in the field of automotive interior parts, can solve the problems that the sound insulation index cannot meet the requirements, are prone to bending deformation, and are not conducive to the lightweight of the whole vehicle, so as to improve work efficiency, reduce weight, and shorten the length of the vehicle. The effect of lead time

Inactive Publication Date: 2008-12-31
刘明春
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing rear shelves are usually directly molded by laminating wood powder boards and fabrics. This molding process mainly has the following problems: 1. The sound insulation index cannot meet the requirements; 2. The product has poor rigidity and is prone to bending deformation; 3. The product is heavy, which is not conducive to the lightweight and energy saving of the whole vehicle

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: The production method of the rear shelf of Shenlong Automobile Triumph hatchback (A type) adopts the following processing steps:

[0019] Rear shelf specifications: L1000*W550MM, the minimum thickness of the product is 4.5mm, the maximum thickness is 17.5mm, and the maximum gap in the hollow area is 13mm.

[0020] 1. Baking temperature of PP wood flour board: the density of the rear shelf is 1.08±0.04g / cm 3 The PP wood flour board, the PP wood flour board profile needs to be rolled and cut according to the size of the rear shelf; the double oven digital display temperature control system is used, and the drying temperature is completed in two stages: (1) The first stage is the pre-processing stage. In the baking temperature stage, the baking temperature time is 90sec. After the baking temperature is completed, the surface temperature of the PP wood flour board is 90°C; during the baking temperature, the upper oven temperature is set to 310°C, and the lower...

Embodiment 2

[0026] Embodiment 2: the production method of the rear shelf of Shenlong Automobile Triumph hatchback (Type B), adopts the following processing steps:

[0027] Rear shelf specifications: L1100*W600MM, the minimum thickness of the product is 5mm, the maximum thickness is 16mm, and the maximum gap in the hollow area is 11mm.

[0028] 1. Baking temperature of PP wood flour board: the density of the rear shelf is 1.08±0.04g / cm 3 The PP wood flour board, the PP wood flour board profile needs to be rolled and cut according to the size of the rear shelf; the double oven digital display temperature control system is used, and the drying temperature is completed in two stages: (1) The first stage is the pre-processing stage. In the baking temperature stage, the baking temperature time is 85sec. After the baking temperature is completed, the surface temperature of the PP wood flour board is 90°C; during the baking temperature, the upper oven temperature is set to 305°C, and the lower ov...

Embodiment 3

[0032] Embodiment 3: the production method of the rear shelf of Shenlong Automobile Triumph hatchback (C type), adopts the following processing steps:

[0033] Rear shelf specifications: L900*W600MM, the minimum thickness of the product is 6mm, the maximum thickness is 16mm, and the maximum gap in the hollow area is 10mm.

[0034] 1. Baking temperature of PP wood flour board: the density of the rear shelf is 1.08±0.04g / cm 3 The wood-flour board profiles are rolled and cut according to the size of the rear shelf; the double-drying oven digital display temperature control system is used, and the drying temperature is completed in two stages: (1) The first stage is the pre-baking temperature stage. , the baking temperature time is 95sec, after the baking temperature is completed, the surface temperature of the PP wood flour board is 95 ℃; during the baking temperature, the temperature of the upper oven is set to 315 ℃, and the temperature of the lower oven is set to 400 ℃; (2) th...

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PUM

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Abstract

The invention relates to a method for producing a back shelf of a vehicle which belongs to the technical field of the interior trim parts of vehicles. The method is characterized in that PP wood powder plates are selected as the basic material of the back shelf; the PP wood powder plates after being baked are automatically transmitted to a die by a track and are formed by vacuum blowing and cutting; firstly, the first wood powder plate is paved on the die and a nailing mechanism is adopted to carry out perforating after the first wood powder plate is located; then the second wood powder plate is paved on the die and a PES non-spinning fabric is paved next; the second wood powder plate is formed into a semi-finished product by blowing after located and then is cooled and formed into a finished product under a normal temperature. The method for producing the back shelf of a vehicle solves the problem of sound isolation of a back shelf assembly and comes up to international front level of grade three; the weight is greatly reduced, thus meeting the demand of light integral vehicle; the rigidness is high and the bending crack intensity can reach up to more than 300N; the whole production process generates no harmful matters, thus meeting the demand of environment protection.

Description

technical field [0001] The invention relates to a production method for a rear shelf of an automobile, in particular, it is used for being installed at the rear of an automobile and plays the role of sound insulation and beautification, and belongs to the technical field of automobile interior parts. Background technique [0002] Automotive interior parts are generally installed inside the car to play the role of heat insulation, sound insulation and beautification. In the era of more and more pursuit of high performance, environmental protection, energy saving, light weight and personalization, the interior of the car, like the appearance of the car, has become an important factor for people to buy a car. Therefore, the requirements for automotive interior parts are getting higher and higher. In the prior art, performance indicators such as high sound insulation, low gram weight, and high strength of the rear shelf have become the bottleneck, restricting the development of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D65/14
Inventor 刘明春
Owner 刘明春
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