CN1843534A

CN1843534A - Die pressing plastic ski and its production process

Info

Publication number: CN1843534A
Application number: CN 200510063363
Authority: CN
Inventors: 沈爱甫
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-08
Filing date: 2005-04-08
Publication date: 2006-10-11
Anticipated expiration: 2025-04-08
Also published as: CN100420498C

Abstract

The invention discloses a molded plastics skies, the front of which is upwarping, the two sides are upwarping, the said two sides are equipped with handrail, which is integrated with skies; the bottom surface of skies is equipped with chute; the invention also discloses the process for preparing said skies. The invention is characterized by fairshaped integral body, which enables high speed glide; flexible turning and easy operation; light weight and long durability; integral structure which reduces friction coefficient; simple process and good connection among each part.

Description

Die pressing plastic ski and manufacture craft thereof

Technical field

The present invention relates to a kind of die pressing plastic ski, and corresponding manufacture craft.

Background technology

At present, the skis that uses that is seated is the past slightly flat board that upwarps of a front end, and its bottom surface planing surface is tabular or dimpling arcuation; The corresponding mode that adopts heating to merge of making causes the simple shape of skis, and product fuses not with great difficulty delamination splitting, and is not easy to operate in the direction control in use, and instability when sliding, and protectiveness is relatively poor.

Summary of the invention

Technical problem to be solved by this invention is to avoid above-mentioned deficiency of the prior art, and proposes a kind of die pressing plastic ski made of plastic, good forming effect, and corresponding manufacture craft.

Technical scheme provided by the present invention is: a kind of die pressing plastic ski, and this skis front end upwarps, and the dual-side of this skis upwarps, and described dual-side is provided with handrail, and this handrail and skis are one; The bottom surface of this skis is provided with chute.

Further, the afterbody of this skis is provided with brake gear, and described brake gear includes the through hole on hockey stick and the skis, and the bending place of this hockey stick is provided with axle, and this hockey stick is connected in the through hole of skis by axle.

Further, the lateral edges of described skis bottom surface is a parabolic type.

In addition, the present invention also provides the manufacture craft of above-mentioned die pressing plastic ski, and this technology may further comprise the steps:

The polythene material of foaming is cut into slices according to the required thickness of skis, as the inner core of skis;

Get the thin slice of polythene material,, paste, make composite bottom board by heating, extruding and inner core as the bottom of skis;

Composite bottom board is heated to 80～150 ℃, kept 10～15 minutes, place mould then, the bottom surface contacts with die face, pressurization in the above, and to vacuumizing between bottom surface and the die face, the bottom surface obtains typing simultaneously;

According to the pattern of required skis, the edge of trimming composite bottom board;

Coat hot melt adhesive on composite bottom board, repave the polyethylene sheets as deck plane, integral body is put into mould, allows deck plane contact with die face, pressurizes on the bottom surface simultaneously, to vacuumizing the typing deck plane between deck plane and the die face;

Deck plane is rebuild, and heat is melted its edge of sealing, obtains shaped article.

Further, described skis bottom is that bottom surface layer and intermediate layer heat are melted and formed.

Further, heating-up temperature is 105 ℃ in the type-approval process of described bottom surface.

Further, described bottom surface layer is made up of low density polyethylene (LDPE) and high density polyethylene (HDPE), and wherein low density polyethylene (LDPE) is 30～70%.

Further, described intermediate layer is or/and deck layer is low density polyethylene (LDPE) or the cross-linking polyethylene materials of thickness between 2～5mm.

Further, described inner core is that density is at 30～60Kg/m ³Low density polyethylene (LDPE).

The present invention has following advantage: global shape is pipeline-type, can slide at a high speed, enjoys The Joy of Skiing; It is quite flexible, easy to operation to turn; In light weight, durable in use, adopt integral structure, reduced the coefficient of friction in the motion process; Manufacture craft is simple, and fusing property is good between the each several part, can obtain the product of different external forms.

Description of drawings

Fig. 1 is a vertical view of the present invention;

Fig. 2 is the A-A view among Fig. 1;

Fig. 3 is a schematic bottom view of the present invention;

Fig. 4 is a manufacture craft flow chart of the present invention;

Fig. 5 is a cut-away view of the present invention;

Wherein: 1: front end 2: the handrail 3 on the side: brake gear 4: deck chair type hockey stick

5: side 6: chute 7: lateral edges 8: axle

9: deck layer 10: inner core 11: intermediate layer 12: bottom surface layer

The specific embodiment

Below in conjunction with description of drawings the specific embodiment of the present invention.

A kind of die pressing plastic ski as shown in Figures 1 to 3, this skis front end 1 upwarps, and the dual-side 5 of this skis upwarps, and described both sides are provided with handrail 2, and this handrail 2 is an one with skis.The afterbody of this skis is provided with brake gear 3, and this brake gear 3 includes the through hole on deck chair type hockey stick 4 and the skis, and the bending place of this hockey stick 4 is provided with axle 8, and this hockey stick 4 is connected in the through hole of skis by axle 8.The bottom surface of skis is provided with the sliding rib that 6, two chutes of two adjacent chutes 6 intersect, and chute 6 and crossing limit, bottom surface, plays jointly and quickens and the control directive effect; The lateral edges 7 that this skis bottom surface and side intersect is a parabolic type, changes direction when being convenient to rotate.

During skiing, be sitting in the skis, handgrip is lived the handrail 2 of skis, because the straight type chute 6 on the bottom surface of skis, sliding speed is fast, and good stability; When needing to turn, center of gravity is lifted the handrail 2 on the other direction simultaneously to the direction skew that turns to, and skis rotates along its bottom surface side edge 7 and changed direction; Also can adopt brake gear 3 to change direction, only lift one of them hockey stick 4, hockey stick 4 other ends contact snowfield frictional force increases, and skis rotates about it the purpose that reaches turning, as lifting two hockey sticks 4 simultaneously, just reaches the purpose of brake.

The manufacture craft of a kind of die pressing plastic ski as shown in Figure 4, this technology may further comprise the steps:

The polythene material of foaming is cut into slices according to the required thickness of skis, as the inner core 10 of skis;

Get the thin slice of polythene material,, paste, make composite bottom board by heating, extruding and inner core 10 as the bottom of skis;

Composite bottom board is heated to 105 ℃, kept 12 minutes, place mould then, bottom surface 12 contacts with die face, pressurization in the above, and to vacuumizing between bottom surface 12 and the die face, bottom surface 12 obtains typing simultaneously;

On composite bottom board, coat hot melt adhesive (U.S. GRACO hot melt adhesive, LG Corp of South Korea HDPE hot melt adhesive), repave polyethylene sheets as deck plane 9, integral body is put into mould, allow deck plane 9 contact with die face, pressurization on bottom surface 12 simultaneously, to vacuumizing typing deck plane 9 between deck plane 9 and the die face;

Deck plane 9 is rebuild, and heat is melted its edge of sealing, obtains shaped article.

The cut-away view of a kind of die pressing plastic ski as shown in Figure 5, the skis bottom is that bottom surface layer 12 and intermediate layer 11 heat are melted and formed, wherein: bottom surface layer 12 is made up of low density polyethylene (LDPE) and high density polyethylene (HDPE), and low density polyethylene (LDPE) is 40%, and high density polyethylene (HDPE) is 60%; Intermediate layer 11 is or/and deck layer 9 is the cross-linking polyethylene materials of thickness between 3.5mm; Inner core 10 is that density is at 50Kg/m ³Low density polyethylene (LDPE).These four layers are processed according to above-mentioned manufacture craft, can obtain die pressing plastic ski.

Owing to adopt the vacuum mode between mould and the contact-making surface, guarantee the external form good moldability of skis, entire product is plastic production, and is in light weight, lighter to the skis operation; And adopt the plastics bottom surface, and reduced coefficient of friction, increase the speed of skiing.

Claims

1, a kind of die pressing plastic ski, this skis front end upwarps, and it is characterized in that: the dual-side of this skis upwarps, and described dual-side is provided with handrail, and this handrail and skis are one; The bottom surface of this skis is provided with chute.

2, die pressing plastic ski according to claim 1, it is characterized in that: the afterbody of this skis is provided with brake gear, described brake gear includes the through hole on hockey stick and the skis, and the bending place of this hockey stick is provided with axle, and this hockey stick is connected in the through hole of skis by axle.

3, die pressing plastic ski according to claim 1 and 2 is characterized in that: the lateral edges of described skis bottom surface is a parabolic type.

4, a kind of technology of making die pressing plastic ski as claimed in claim 1, this technology may further comprise the steps:

5, manufacture craft according to claim 4 is characterized in that: described skis bottom is that bottom surface layer and intermediate layer heat are melted and formed.

6, manufacture craft according to claim 4 is characterized in that: heating-up temperature is 105 ℃ in the type-approval process of described bottom surface.

7, manufacture craft according to claim 5 is characterized in that: described bottom surface layer is made up of low density polyethylene (LDPE) and high density polyethylene (HDPE), and wherein low density polyethylene (LDPE) is 30～70%.

8, according to claim 4 or 5 described manufacture crafts, it is characterized in that: described intermediate layer is or/and deck layer is low density polyethylene (LDPE) or the cross-linking polyethylene materials of thickness between 2～5mm.

9, manufacture craft according to claim 4 is characterized in that: described inner core is that density is at 30～60Kg/m ³Low density polyethylene (LDPE).