CN2251479Y - Die set capable of expruded dark or light decorative patter plastic rubber product - Google Patents

Abstract

The utility model relates to a die set capable of extruding dark or light decorative patter plastic rubber products. The utility model can extrude melting thermoplastic resin with foaming agent by an extruding machine; through the die set and a forming mould, the thermoplastic resin is pulled and taken to a sawing machine to be cut into finished products by a guide and taking machine. Arc-shaped grooves with unequal unevenness, width and separation distance are milled on the die wall which is arranged on an inner variation segment of the die set. Foaming plastic products produced by the utility model can be applied to building material plywood industries, such as decoration, furniture, etc. The utility model can enhance the texture of plastic foaming products, having great commodity value.

Description

But the mould of the deep or light tone lines of extrusion plasthetics

The utility model relates to a kind of mould, but particularly relates to the mould of the deep or light tone lines of a kind of extrusion plasthetics.

The design of existing Nei Tuofa extrusion mould structure has the thermoplastic plastic rubber of blowing agent as shown in Figure 2 in it, i.e. cooling rapidly behind contact die wall 9, and the top layer does not begin as yet to foam and promptly is configured as the [on surface; The internal layer foaming body then continues to foam in the space 10 in the middle of die wall 9 and the mould heart 8 till fill up.

The plasthetics of prior art extrusion needs to add its allochromatic colour look grain in addition could produce lines or lines, has to reach irregular shortcoming too in a jumble, not only processes often and the production cost also increases.And need surface treatments such as printing or transfer printing in addition, increase manufacturing cost on foot.

The mould that provides the deep or light tone lines of a kind of extrusion plasthetics but main purpose of the present utility model is to overcome the defective of above-mentioned prior art, but the lines that makes its extrusion have the deep or light tone variations of nature makes the texture of product appearance and aesthetics to increase substantially.

The purpose of this utility model is realized by following technical scheme.

But the mould of the deep or light tone lines of a kind of extrusion plasthetics, it utilizes the extruder extrusion to contain the molten thermoplastic resin of blowing agent, by mould and shaping mould, is cut into finished product via pulling to saw of feeding machine; It is characterized in that, described mould, its mould is inherent to be changed to mill on the die wall of section and is provided with concavo-convex inequality, and promptly salient point does not wait to neither identical, the width of the high low head on the summit of depression, i.e. the arcuation groove that do not wait of salient point to the spacing on adjacent salient point or recess summit to adjacent recess summit.When the thermoplastic resin that contains blowing agent during through concavo-convex variations in the mould section, because the principle of compression just begins foaming, because the design that the concavo-convex inequality of die wall and width do not wait, make that the density degree of product foaming is different and the generation tone is rich in the phenomenon of deep or light variation; When the melt plastic cement of high temperature promptly stops foaming and is configured as superficial layer behind the contact die wall, become hard cortex through the chilling of shaped opening gold again; Cooling through finishing die at last reaches a fixed cun straight line lines plasthetics that becomes the deep or light rich variation of tone.

The utility model compared with prior art has obvious advantage and good effect.

The utility model utilizes the thermoplastic resin that the mould extrusion contains blowing agent to make when the foaming body, through a kind of concavo-convex that innovative concept arranged do not wait that the mould structure that changes in the mould of shape forms that density is inequality, tone have deep or light, have hard superficial layer again simultaneously, make attractive in appearance and the hold concurrently foamed plastic extrusion goods of lines of shading color phase modulation arranged; The utility model be at the goods of plastic cement extrusion now need to add in addition two or more looks (flower) grain with produce decorative pattern and decorative pattern too mixed and disorderly, can't manufacture straight line lines effect, or with surface-treated methods such as printing and transfer printings with the plasthetics of making decorative pattern, not only process often and shortcoming such as production cost up and improved; The foamed plastic product of using the manufacturing of the utility model mould can be applicable to can improve the texture of foamed plastic product on the building materials plywood industries such as decoration and furniture, has commodity value.

Comprehensive the above, but the mould of the deep or light tone lines of extrusion of the present utility model plasthetics, existing general plasthetics mfg. moulding die has improved a lot, and with economical and practical and can improve product quality, reality is one to have the new design of progressive and novelty.

Concrete structure of the present utility model is provided in detail by following examples and accompanying drawing thereof.

Fig. 1 is product processing flow figure;

Fig. 2 is the die structure dwg of the known interior forming process that expands;

Fig. 3 is a mould structure side cutaway view of the present utility model;

Fig. 4 changes the section schematic diagram in the mould in the utility model mould;

Fig. 5 is the finished product structural representation;

Fig. 6, Fig. 7 product embodiments for making according to the utility model.

See also the manufacturing flow chart that Figure 1 shows that product.Its via extruder 1 extrusion fusion, contain the thermoplastic resin 19 of blowing agent, via pulling of feeding machine 17, the moulding by mould 14; Because product still is the condition of high temperature, easy softening transform after the moulding, so just can stablize indeformable after the cooling processing that vacuumizes setting and bosh 16 of need via shaping mould 15; Advance in the saw 18 by pulling of feeding machine 17 and to be cut into finished product.

Be illustrated in figure 3 as the sectional side view of mould structure of the present utility model.Not being both of the extrusion mould maximum of mould of the present utility model and other inner swelling methods is the interior design that changes section 4 of mould; Enter and change section 4 in the mould when the thermoplastic plastic rubber that contains blowing agent enters die head 2, intermediate die 3 by extruder main frame 1, be shaped, begin foaming when by die lip 5 and be foaming body along with the variation of concavo-convex in the mould, the inhomogeneous shape of height; After filling up whole foaming section 6, enter cooling forming mouth gold 7 cooling formings rapidly through foaming, promptly can be made into the rich hard plastic cement extrusion goods of deep or light tone lines and surface that change.

Be illustrated in figure 4 as mould structure schematic diagram of the present utility model, change the difference of section 4 and general inner swelling method extrusion mould (as shown in Figure 2) in the mould of its supplementary notes the utility model mould; When mould is manufactured, on die wall, mill out concavo-convex inequality, being salient point 12 does not wait to neither to the greatest extent identical, the width of the high low head of recess 13 yet, being salient point 12 does not wait or recess 13 to adjacent recess also is not equidistant arcuation groove 11 to the spacing of adjacent salient point, when the thermoplastic resin 19 that contains blowing agent promptly begins to foam through the salient point 12 in the moulds; Because the design at mould sunken inside place 13 is feasible closeer than the foaming of salient point 12 places herein, density and the different phenomenon of catoptrical power that the surface texture of this density inequality also causes colorant to disperse, thereby produce the rich lines that changes of deep or light tone; Because the melt plastic cement of high temperature promptly stops foaming and molding behind contact die wall 9 be superficial layer, becomes hard top layer via the chilling of shaped opening gold 7 again.

Be illustrated in figure 5 as the finished product organigram.As known in the figure, make the phenomenon of the finished product density inequality that produces via the concave-convex design in the mould, caving inward of die wall makes the foaming spacing dwindle, and causes the foaming density of finished product higher, colorant is than concentrated and color is darker, shown in 20; And the protrusion of die wall makes and the foaming spacing broad of finished product makes that the foaming density of finished product is lower, colorant disperses and paler colour, shown in 21; Because the density degree difference of surface blister, thereby produce the phenomenon that tone is rich in deep or light variation; And owing to produce towards folk prescription to continuous extrusion, natural shaped with the direction of extrusion is the lines of straight line.

Be illustrated in figure 6 as the upright embodiment of the plasthetics group of utilizing mould manufacturing of the present utility model.Utilize the foamed plastic goods of mould extrusion of the present utility model, can apply in all kinds of decoration building materials, as ceiling 22, wallboard 23 and floor 24 etc.

The drawer plate embodiment that Fig. 7 is manufactured for application mould of the present utility model.Utilize the foamed plastic goods of Mold Making of the present utility model, also can apply to each field such as furniture plywood.

Claims (1)

1. But 1. the mould of the deep or light tone lines of an extrusion plasthetics, it utilizes the extruder extrusion to contain the molten thermoplastic resin of blowing agent, by mould and shaping mould, is cut into finished product via pulling to saw of feeding machine; It is characterized in that, described mould, its mould is inherent to be changed to mill on the die wall of section and is provided with concavo-convex inequality, and promptly salient point does not wait to neither identical, the width of the high low head on the summit of depression, i.e. the arcuation groove that do not wait of salient point to the spacing on adjacent salient point or recess summit to adjacent recess summit.

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