CN204894463U - Extrusion die of multilayer composite construction panel - Google Patents

Abstract

The utility model discloses an extrusion die head of a multi-layer composite building board, which comprises a first die body, a second die body, a third die body and a fourth die body which are stacked in sequence, and the front end of the first die body is arranged There is an upper die lip, the front end of the second die body and the third die body is provided with a die core, and the front end of the fourth die body is provided with a lower die lip; a first flow channel is arranged between the first die body and the second die body channel, the tail of the first flow channel is connected to the first feed port, a second flow channel is arranged between the second mold body and the third mold body, the tail end of the second flow channel is connected to the second feed port, and the third mold body A third flow channel is provided between the fourth mold body, and the tail end of the third flow channel is connected to the third feed port; the first flow channel flows through the first discharge port formed by the upper die lip and the upper surface of the core , the second flow channel flows through the second discharge port inside the core, and the third flow channel flows through the third discharge port formed by the lower surface of the core and the lower die lip. The utility model has the characteristics of one-time forming of the product and convenient processing.

Description

Extrusion dies for multilayer composite building panels

technical field

The invention relates to an extrusion molding die head for producing building boards, in particular to an extrusion die head for multilayer composite building boards.

Background technique

At present, traditional building boards are generally wooden materials, which have defects such as long growth cycle, heavy weight, and difficult processing. The main problem is that the maintenance of wooden materials is relatively difficult, and it is easy to mold and turn black when exposed to water, which seriously affects its use. life.

Contents of the invention

The purpose of the present invention is to provide an extrusion die head for multi-layer composite building boards. The board structure produced by it has multi-layer raw material composite layers and is filled with foaming materials inside the building boards. It has the advantages of one-time molding and convenient processing. Features, the obtained product has the characteristics of light weight, convenient use and long service life while ensuring strength.

In order to achieve the above object, the utility model adopts the following technical solutions:

An extrusion die head for a multi-layer composite building board is characterized in that it includes a first die body, a second die body, a third die body and a fourth die body stacked in sequence, and the front end of the first die body is provided with The upper die lip, the front end of the second mold body and the third mold body are provided with a mold core, and the front end of the fourth mold body is provided with a lower die lip; a first runner is provided between the first mold body and the second mold body , the tail of the first flow channel is connected to the first feed port, the second flow channel is arranged between the second mold body and the third mold body, the tail end of the second flow channel is connected to the second feed port, the third mold body and the A third flow channel is arranged between the fourth mold body, and the tail end of the third flow channel is connected to the third feed port; the first flow channel flows through the first discharge port formed by the upper die lip and the upper surface of the core, The second flow channel flows through the second discharge port inside the core, and the third flow channel flows through the third discharge port formed by the lower surface of the core and the lower die lip.

Further, the front end of the second discharge port has a plurality of small hole structures.

Further, the front end of the mold core is provided with a number of guide grooves connecting the first discharge port and the third discharge port, and adjacent guide grooves are separated by single or multiple small holes.

Further, the initial section and the middle part of each of the above-mentioned flow channels are large-diameter structures, and the diameter of the tail ports of each flow channel is gradually reduced to form a small-diameter structure adapted to each corresponding outlet.

The extrusion die head of the multi-layer composite building board designed by the present invention is provided with three feed ports, three flow channels and three discharge ports, and the front end of the second discharge port in the mold core is set to a plurality of The small hole structure can make the multi-layer raw material composite, and at the same time, the raw material of the foaming material enters the second outlet in the mold core from the second flow channel in the middle, and discharges the material from each small hole to fill the interior of the multi-layer composite building board. The whole product is molded at one time, and the processing is very convenient.

Description of drawings

Fig. 1, the combined state schematic diagram of planar structure of the present invention;

Fig. 2, the exploded schematic diagram of three-dimensional structure of the present invention;

Fig. 3, the plane structure schematic diagram of mold core front end face of the present invention;

Fig. 4 is a schematic diagram of the product of the present invention;

Detailed ways

As shown in Figures 1 and 2, an extrusion die head of a multilayer composite building board includes a first mold body 1, a second mold body 2, a third mold body 3 and a fourth mold body 4 stacked in sequence .

The front end of the first mold body 1 is provided with an upper die lip 5 , the front ends of the second mold body 2 and the third mold body 3 are provided with a mold core 7 , and the front end of the fourth mold body 4 is provided with a lower die lip 6 .

The first flow channel 81 is arranged between the first mold body 1 and the second mold body 2, and the tail of the first flow channel 81 is connected with the first feed port 811, and the second mold body 2 and the third mold body 3 are provided There is a second flow channel 82, the tail end of the second flow channel 82 is connected to the second feed port 821, a third flow channel 83 is arranged between the third mold body 3 and the fourth mold body 4, and the third flow channel 83 ends The end communicates with the third feeding port 831.

The first flow channel 81 flows through the first discharge port 91 formed by the upper die lip 5 and the upper surface of the core 7, the second flow channel 82 flows through the second discharge port 92 inside the core 7, and the third flow channel 83 flows through the third outlet 93 formed by the lower surface of the core 7 and the lower lip 6.

As shown in Figure 3, the front end of the second discharge port 92 is a plurality of small holes 921 structure, and the front end of the core 7 is provided with a number of connected first discharge port 91 and the third discharge port 93 Adjacent guide grooves 71 are arranged at intervals of single or multiple small holes 921 . In this embodiment, a guide groove 71 is provided at every interval of a small hole 921 , but in practice, a plurality of small holes 921 may be arranged at intervals as required.

The extrusion die head of the multilayer composite building board designed by the present invention is provided with three feed ports 811, 821, 831, three flow channels 81, 82, 83 and three discharge ports 91, 92, 93, and The front end of the second discharge port 92 in the mold core 7 is provided with a plurality of small holes 921, so that the multi-layer raw materials can be combined, and the raw material of the foaming material can enter the second flow channel 82 in the middle of the mold core. The second discharge port 92 is discharged from each small hole 921 and filled into the interior of the layered composite building board to obtain a molded product as shown in Figure 4, wherein the position indicated by A is the upper composite material entered by the first feed port 811, The part B refers to the raw material of the foaming material that enters the second feed port 821, the part C refers to the lower composite material that enters the third feed port 831, and D refers to the reinforcement formed by the upper and lower composite materials flowing through the guide groove 71. Ribs, the whole product is formed at one time, and the processing is very convenient, and the obtained product has the characteristics of light weight, convenient use and long service life while ensuring strength.

In addition, in order to meet the needs of high-efficiency feeding and rapid discharge, the initial sections and middle parts of the above-mentioned flow channels 81, 82, 83 are large-diameter structures, and the diameters of the tail ports of each flow channel 81, 82, 83 are gradually reduced. A small-diameter structure adapted to each corresponding discharge port is formed.

The above is only a preferred embodiment of the present invention, and is not intended to limit the invention in any form. Any simple modifications, equivalent changes or modifications made to the above embodiments according to the technical principles of the present invention still belong to this invention. within the scope of the technical solution of the invention.

Claims (3)

1. An extrusion die head of a multi-layer composite building board, characterized in that: comprise a first mold body, a second mold body, a third mold body and a fourth mold body stacked in sequence, the front end of the first mold body An upper die lip is provided, a die core is provided at the front end of the second die body and the third die body, and a lower die lip is provided at the front end of the fourth die body; a second die body is provided between the first die body and the second die body A flow channel, the tail of the first flow channel is connected to the first feed port, a second flow channel is arranged between the second mold body and the third mold body, the tail end of the second flow channel is connected to the second feed port, and the third mold body A third flow channel is set between the body and the fourth mold body, and the tail end of the third flow channel is connected to the third feed port; the first flow channel flows through the first discharge material composed of the upper die lip and the upper surface of the core. The second flow channel flows through the second discharge port inside the core, and the third flow channel flows through the third discharge port formed by the lower surface of the core and the lower die lip; the front end of the second discharge port is Multiple pore structures. 2. The extrusion die head of multi-layer composite building board as claimed in claim 1, characterized in that: the front end of the core is provided with several guide grooves connecting the first discharge port and the third discharge port, adjacent to each other The guide grooves are arranged at intervals of single or multiple small holes. 3. The extrusion die head of multi-layer composite building board as claimed in any one of claims 1-2, characterized in that: the initial section and the middle part of each flow channel are large-diameter structures, and each flow channel The diameter of the tail port is gradually reduced to form a small-diameter tapered structure adapted to each corresponding discharge port.