CN201597173U

CN201597173U - Wood-plastic extrusion die with water cooling function

Info

Publication number: CN201597173U
Application number: CN2010201006587U
Authority: CN
Inventors: 吴俊杰; 邓可; 曾柱强
Original assignee: GUANGZHOU HIRP COMPOSITE MATERIALS TECHNOLOGY Co Ltd
Current assignee: GUANGZHOU HIRP COMPOSITE MATERIALS TECHNOLOGY Co Ltd
Priority date: 2010-01-22
Filing date: 2010-01-22
Publication date: 2010-10-06
Anticipated expiration: 2020-01-22

Abstract

The utility model discloses a wood-plastic extrusion die with a water cooling function, which comprises a die head and a forming die connected with the die head. A die head cavity is disposed on the die head, a forming die cavity matched with the die head cavity in position is disposed on the forming die, a core rod extending into the die head cavity is further disposed on the die head and formed by combining a front core and a water jacket, the water jacket is sleeved on the front core and provided with a sealed tail end, a delivery pipe and a return pipe are arranged inside the front core, the delivery pipe is capable of delivering cooling water entering from the outside to the water jacket, and the return pipe is capable of recycling the cooling water in the water jacket. By arranging the core rod in the die head as combination of the front core and the water jacket, and only disposing the delivery pipe and the return pipe for water flowing in the front core, the wood-plastic extrusion die with the water cooling function has extremely small affection on heated sections of the cavity front core portion in the die head, and cooling water inputted into the water jacket is capable of completely cooling section inner core portions needed to be cooled in technique, thereby greatly balancing cooling rates of section inner cores and section outer cores, improving product quality, and avoiding crack.

Description

A kind of wood with water-cooled function is moulded extrusion die

Technical field

The utility model relates to a kind of mould, particularly a kind of extrusion die of producing wood-plastic products.

Background technology

The raw material that makes Wood-plastic material with heating or other method becomes flow regime man-hour adding, under pressure, woodenly mould extrusion die to make required section bar be that a kind of wood is moulded the extensive manufacturing process that adopts in the industry by mainly forming by extrusion die and stock mould.Wherein, the Wood-plastic profiles with inner core 100 as shown in Figure 1 is when producing, and the technology of employing is to arrange plug in the die cavity of die head, is formed the Wood-plastic profiles with inner core by plug.And in process, need section bar is heated in preceding half section of die cavity in the die head, and in the die head second half section of die cavity need it be cooled, thereby make product moulding.Wherein, the outer surface of die cavity second half section section bar directly infeeds cooling water and cools off in die head, and plug is limited to structural limitations, pore need be set from the plug brace rod of die head front end think that the plug inner chamber feeds gas, make gas flow and the inner core of section bar is cooled off along plug die cavity second half section in die head.But, adopt such air cooling mode, can make the section bar inner core in die head, just begin to cool down half section the time before the die cavity, and just begin to cool down the outer surface of section bar die cavity second half section in die head.Like this, make the inside and outside cooldown rate difference of section bar, the material unbalanced contraction exists Wood-plastic profiles poor mechanical property, easily crack, easy defective such as suction.

The utility model content

In order to solve the above problems, the purpose of this utility model is to provide a kind of can carry out the balance cooling to Wood-plastic profiles, effectively improve section quality wood mould extrusion die.

The technical scheme that the invention for solving the technical problem adopted is:

A kind of wood with water-cooled function is moulded extrusion die, comprise die head and the stock mould that joins with die head, described die head is provided with the die head die cavity, described stock mould is provided with the stock mould die cavity that is complementary with described die head die cavity position, also be provided with the plug that extend in the die head die cavity on the described die head, described plug by preceding core and socket thereon and the water jacket of endcapped combine, described before in-core be provided with and can carry the flow pipe of the cooling water that enters by the external world and can reclaim the return pipe of the cooling water in the water jacket to water jacket.

As improvement of the technical scheme, described flow pipe and return pipe are the thermal insulation water pipes.

The beneficial effects of the utility model are: wood of the present utility model is moulded extrusion die when producing, and die head and stock mould is installed on the frame, and the die head feed end is connected with extruder.Owing to the plug in the die head is arranged to the combination of preceding core and water jacket, and in preceding core, only be provided with the flow pipe and the return pipe of water flowing, minimum to being in the die head before the die cavity influence of the section bar of the heating of core segment, and the cooling water that is input in the water jacket can partly cool off completely to the section bar inner core of technological requirement cooling, greatly balance the cooldown rate of the inside and outside core of section bar, improve the quality of product, avoid the appearance in crack.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples:

Fig. 1 is described Wood-plastic profiles schematic diagram with inner core;

Fig. 2 is the utility model structural representation;

Fig. 3 is the utility model die head schematic diagram;

Fig. 4 is that the utility model plug splits schematic diagram.

The specific embodiment

With reference to Fig. 2 to Fig. 4, a kind of wood with water-cooled function of the present utility model is moulded extrusion die, comprise die head 1 and the stock mould 2 that joins with die head 1, described die head 1 is provided with die head die cavity 11, described stock mould 2 is provided with the stock mould die cavity 21 that is complementary with described die head die cavity 11 positions, also be provided with the plug 12 that extend in the die head die cavity 11 on the described die head 1, described plug 12 by preceding core 13 and socket thereon and the water jacket 14 of endcapped combine, be provided with in the core 13 before described and can carry the flow pipe 15 of the cooling water that enters by the external world and can reclaim the return pipe 16 of the cooling water in the water jacket 14 to water jacket 14.Wood of the present utility model is moulded extrusion die when producing, and die head 1 and stock mould 2 is installed on the frame 3, and die head 1 feed end is connected with extruder 4.Owing to the plug in the die head 1 12 is arranged to the combination of preceding core 13 and water jacket 14, and in preceding core 13, only be provided with the flow pipe 15 and the return pipe 16 of water flowing, minimum to being in the die head 1 before the die cavity influence of the section bar of the heating of core 13 parts, and the cooling water that is input in the water jacket 14 can cool off completely to section bar inner core 100 parts of technological requirement cooling, greatly balance the cooldown rate of the inside and outside core of section bar, improve the quality of product, avoid the appearance in crack.

For the influence to the section bar of heating in preceding half section of the wood of the cooling water that flows through in the water pipe in the core 13 before further reducing, as preferably, described flow pipe 15 and return pipe 16 are thermal insulation water pipes.

Certainly, the invention is not limited to above-mentioned embodiment, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite of the utility model spirit, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.

Claims

1. the wood with water-cooled function is moulded extrusion die, comprise die head (1) and the stock mould (2) that joins with die head (1), described die head (1) is provided with die head die cavity (11), described stock mould (2) is provided with the stock mould die cavity (21) that is complementary with described die head die cavity (11) position, also be provided with the plug (12) that extend in the die head die cavity (11) on the described die head (1), it is characterized in that: described plug (12) by preceding core (13) and socket thereon and the water jacket of endcapped (14) combine, be provided with in the core (13) before described and can carry the flow pipe (15) of the cooling water that enters by the external world and can reclaim the return pipe (16) of the cooling water in the water jacket (14) to water jacket (14).

2. the wood with water-cooled function according to claim 1 is moulded extrusion die, it is characterized in that: described flow pipe (15) and return pipe (16) are the thermal insulation water pipes.