A method of making and installing a curved surface projection screen that can be quickly disassembled and assembled
A technology of curved surface projection and installation method, applied in the field of production and installation of curved projection screens, can solve the problems that the projection screen affects the product surface accuracy, installation effect and installation cycle, etc., to increase the ability to resist deformation, reduce dimensional errors, and ensure The effect of flatness accuracy
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specific Embodiment approach 1
[0033] Embodiment 1: Combining Figure 1 to Figure 3 , Figure 4 to Figure 13 and Figure 15 Describe this embodiment, a method for making and installing a quickly detachable curved projection screen of this embodiment, which includes the following steps:
[0034] Step 1: Mold making:
[0035] Step 11: Use low shrinkage resin and chopped strand mat to form the mold;
[0036]After the two arc-shaped female molds 8 are solidified, a reinforcing frame 3 is placed on the back 2 of the female mold 8. The reinforcing frame 3 is a field-shaped reinforcing frame 3 formed by a plurality of square steel pipes 1 arranged vertically and horizontally. The reinforcing frame 3 is connected to the female mold. If there is a gap between the back 2 of 8, fill it with chopped strand mat, fill the interior and surrounding space of the reinforcement frame 3 with polyether polyol and isocyanate mixture, and control the ambient temperature between 20-25 ℃, After the mixture foam is fully cured, ...
specific Embodiment approach 2
[0053] Specific implementation mode 2: Combining Figure 5 and Image 6 Describing the present embodiment, the cross-sectional dimension of the square steel pipe 1 in Step 1 of the present embodiment is 100×50×2 mm. This arrangement can improve the precision of the mold curvature, and the square steel pipe can effectively prevent the radial deformation of the female mold 8 itself. Other components and connection relationships are the same as in the first embodiment.
specific Embodiment approach 3
[0054] Specific implementation three: combination Figure 5 Illustrating this embodiment, the mixing ratio of polyether polyol and isocyanate in step 1 of this embodiment is 1.2:0.8. In this way, a foam with better strength can be obtained in this ratio, and the surface is repaired and flattened after the foam of the mixture is fully cured. Other compositions and connection relationships are the same as in the first or second embodiment.
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