CN2744503Y

CN2744503Y - Casting head for manufacturing hollow sunlight plate

Info

Publication number: CN2744503Y
Application number: CNU2004200805430U
Authority: CN
Inventors: 梁斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-10-25
Filing date: 2004-10-25
Publication date: 2005-12-07
Anticipated expiration: 2014-10-25

Abstract

The utility model discloses a die head for manufacturing hollow sunlight plate, which is composed of a die body, a core rod and a side plate. A couple of blowdown screws pass through the side plate, and the front end of the blowdown screw holds the line with the inlet of the flow channel; the cone surface of the front end of the blowdown screw is provided with a fluid inlet which is connected with the through hole of the screw center; a core bar having a check ring is arranged in the core rod of the die head for manufacturing hollow sunlight plate; the die body of the die head for manufacturing hollow sunlight plate adopts the integral structure. The die head for manufacturing hollow sunlight plate solves the problem of the flat-surface leak due to the long-term usage and the multiple disassembling and assembling of the layered designed product in the past; an air cavity is uniformly divided into a plurality of separated regions by the core bar in the core rod to cause the air current to be uniformly distributed in the shorted time to obtain the more stable product in much more shortest time; when the product is changed, the deposition raw materials on the end surface of the die body can be exhausted by the added blowdown screws in the shorted time to reduce the cost.

Description

Make the die head of hollow sunlight board

Technical field

The utility model relates to a kind of structure that is used for extrusion moulding equipment, the especially extrusion die of production hollow sunlight board.

Background technology

The extruding production line of now used production sunlight board through Vacuum shaping, by extruder and co-extrusion distributor, combines different materials, goes out the hollow sunlight board by die head is compound.As shown in Figure 1, die head adopts split type, comprises patrix, middle mould and counterdie, and land area weares and teares easily in the assembly and disassembly process, produces to leak material; This die head does not have blowdown mechanism, after reloading, residual raw materials must be extruded, and produces useless plate thus, increases cost; Also having a problem is exactly that its mandrel structure is unreasonable, air-flow skewness during air blowing.

The utility model content

The purpose of this utility model is to provide a kind of extrusion die that is used for hollow sunlight board extrusion molding former, solves the removing problem of remaining material stock when reloading; Another purpose is that land area leaks the problem of material after solving the die head dismounting; Also having a purpose is exactly to make the gas distribution in the plug more even, and the sealing property of plug and die body is better.

For achieving the above object, the utility model provides following technical scheme:

A kind of die head of making the hollow sunlight board is made up of die body, plug, side plate and die lip, and a pair of blowdown screw passes side plate, and front end maintains an equal level mutually with the runner inlet; The conical surface of the front end of blowdown screw is provided with fluid intake, communicates with the through hole at blowdown screw center.

Above-mentioned die body is an integral type, also links to each other with a distributor.

Above-mentioned die body adopts integral type, and plug places in the die body, and the one end embeds in the groove of die body, and the contact-making surface of groove upper end is the inclined-plane; Be plugged with a core bar in the air cavity of plug, be interval with back-up ring on the core bar, the inwall of back-up ring and air cavity offsets.

Side plate is arranged on the both sides of die body, holds side plate, interior plate and outer panel in comprising; The blowdown screw pass from outside to inside successively interior plate and in hold side plate, and closely cooperate; Hold side plate in described and be provided with stopper slot, match with the boss and the conical surface of blowdown screw front end.

The utility model adopts the die body integral design, the problem that the product that has solved hierarchical design in the past leaks material on the long-term plane of using and repeatedly producing after the dismounting; Core bar in plug evenly becomes a plurality of separated regions with air cavity, makes air-flow uniform distribution in the shortest time, obtains more stable product faster; The blowdown screw that increases when changing product, can be discharged die body end face deposition raw material in the short time, reduce cost.The distributor that die body connected is used in sunlight board surface recombination antiultraviolet protective layer.

Description of drawings

Fig. 1 is the utility model prior art constructions schematic diagram;

Fig. 2 is a three-dimensional combination figure of the present utility model;

Fig. 3 is a three-dimensional exploded view of the present utility model;

Fig. 4 is the partial enlarged drawing of Fig. 3;

Fig. 5 is a side view of the present utility model;

Fig. 6 is the stereogram of blowdown screw of the present utility model;

Fig. 7 is the front view of blowdown screw of the present utility model;

Fig. 8 is the connection diagram of blowdown screw of the present utility model and side plate;

Fig. 9 is the structural representation of core bar of the present utility model;

Figure 10 is cross-sectional figure of the present utility model;

Figure 11 is the partial enlarged drawing of Figure 10.

The specific embodiment

Shown in Fig. 2,3,4,5, the utility model provides a kind of extrusion die, is used to make the hollow sunlight board, is made up of die body 1, plug 2, side plate 3, and the rear portion of its die head also is connected with a distributor 4, to be used to process the sunlight board that has PV, UV protective layer.Die body 1 is an integral type, and die body 1 is built-in with plug 2, and its place ahead is fixed with die lip 6, and die lip 6 is provided with the micromatic setting of fine setting piece 8 and fine adjustment screw 9 compositions, and the both sides of die body 1, are sealed runner by the lock screw sealing and fixing by side plate 3; In including, side plate holds side plate 33, interior plate 32 and outer panel 31; A pair of blowdown screw 5 pass successively from outside to inside interior plate 32 and in hold side plate 33, the boss 52 of its front end is fair mutually with the runner inlet; As Fig. 6,7, the conical surface of the front end of blowdown screw 5 is provided with fluid intake 51, and the boss 52 of conical surface front end communicates with the through hole 53 at blowdown screw center; Holding the fixing hole 321 of side plate 33 and the profile of stopper slot 331 and blowdown screw 5 in interior plate 32 reaches among Fig. 8 closely cooperates.This blowdown screw 5 is when ordinary production is used, and good airproof performance can not make the fluid in the runner overflow; As reload, this blowdown screw 5 can be unscrewed, make it hold the stopper slot 331 of side plate 33 in detaching, in flowing to, fluid holds in the stopper slot 331 of side plate 33, continue again by the fluid intake 51 on blowdown screw 5 conical surfaces, flow in the through hole 53 of blowdown screw 5, flow out from the end of its blowdown screw 5 at last.

Shown in Fig. 5,9,10,11, above-mentioned plug 2 places in the die body 1, and the one end embeds in the groove 11 of die body 1, and is added with sealing strip 24, and the contact-making surface 12 of groove 11 upper ends is the inclined-plane; Plug 2 is provided with several gas holes 21, be plugged with a core bar 7 in the air cavity 22 that is communicated with it, be interval with a plurality of back-up rings 71 on the core bar 7, back-up ring 71 offsets with the inwall of air cavity 22, back-up ring 71 evenly distributes air cavity 22, use enter the required distribution of gas of air cavity 22 by gas hole 21 the space diminish, easilier in the shortest time, air-flow is evenly distributed, and from the pore 23 of plug 2, pass through, to guarantee the quality of product.

Claims

1. a die head of making the hollow sunlight board is made up of die body, plug, side plate and die lip, it is characterized in that: a pair of blowdown screw passes side plate, and front end maintains an equal level mutually with the runner inlet; The conical surface of the front end of blowdown screw is provided with fluid intake, communicates with the through hole at blowdown screw center.

2. a kind of die head of making the hollow sunlight board as claimed in claim 1 is characterized in that: described side plate comprise outer panel, interior plate and in hold side plate, the blowdown screw pass from outside to inside successively interior plate and in hold side plate, and closely cooperate; Hold side plate in described and be provided with stopper slot, match with the boss and the conical surface of blowdown screw front end.

3. a kind of die head of making the hollow sunlight board as claimed in claim 1 or 2 is characterized in that: be plugged with a core bar in the air cavity of described plug, be interval with back-up ring on the core bar, the inwall of back-up ring and air cavity offsets.

4. a kind of die head of making the hollow sunlight board as claimed in claim 3, it is characterized in that: described plug places in the die body, and the one end embeds in the groove of die body, and the contact-making surface of groove upper end is the inclined-plane.

5. a kind of die head of making the hollow sunlight board as claimed in claim 1 or 2 is characterized in that: described die body is an integral type.

6. a kind of die head of making the hollow sunlight board as claimed in claim 5, it is characterized in that: described die body is connected with distributor.