CN201264352Y - Mould for decorating plastic profile - Google Patents

Abstract

A mould for decorating plastic profiles comprises an extrusion mould of a main body parison, and is characterized in that: the coating film parison extrusion die comprises a coating connecting body, a coating film splitter plate, a coating film parison forming core and a coating plate; a sprue is arranged between the coating film splitter plate and the coating film parison forming plate, a coating film parison forming channel is formed by the conical cavity of the coating film parison forming plate and the outer surface of the coating film parison forming core, the coating film parison forming channel is communicated with the sprue, the coating film parison forming channel is communicated with the die cavity of the coating plate, and the effective coating thickness of the coating plate is 2-30 mm. The problem of unbalanced flow of two or more high polymer materials in the plastic co-extrusion molding process in the co-extrusion molding process is effectively solved, namely the interference of the coating film high polymer material coating molding on the extrusion molding of the plastic profile main body parison.

Description

A mold for decorative plastic profiles

technical field

The utility model relates to a mould, in particular to a mould for extruding decorative plastic profiles.

Background technique

In the prior art, a main body parison extrusion die for plastic profiles comprises a mold body, a splitter plate, a transition body, a main body parison forming core, a main body parison forming die, and a main body parison forming core and The splitter plate is fixedly connected, the mold body, the splitter plate, the transition body, the cavity of the main body parison molding die and the main body parison molding core together constitute the main body parison molding flow channel, and the mold body is connected with the extruder. The main body parison is first extruded from the main body parison extrusion die, and then the outer surface of the main body parison is covered with a decorative layer by spraying, UV varnishing, plastic electroplating, film sticking or printing. The existing problems are: the solvent and waste water in the production process pollute the environment; it is easy to scratch during use, and the bottom of the friction part is easy to be exposed after long-term contact; waste products cannot be recycled directly, and the recycling cost is high.

Contents of the invention

The purpose of this utility model is to provide a mold for decorative plastic profiles, which can be formed into decorative plastic profiles at one time. During the production process, there is no solvent and waste water discharge; the waste products of the finished products can be directly recycled. use.

The utility model is achieved in the following way: a mold for decorative plastic profiles, comprising a main body parison extrusion die, the main body parison extrusion die is composed of a mold body, a splitter plate, a transition body, and a main body parison forming core 1. The main body is composed of a parison forming die; its special feature is that it also includes a coating film parison extrusion die,

The coating film parison extrusion die consists of a coating coupling body, a coating film splitter plate, a coating film parison forming plate, a coating film parison forming core, and a coating plate; the main body parison forming core The main parison is formed by the cavity of the through mold body, splitter plate, transition body, main body parison forming die, coating film splitter plate, coating film parison forming plate, coating film parison forming core and coating plate Forming flow channel; the coating film splitter plate is fixedly connected or integrated with the main body parison forming die, the coating film parison forming plate is fixedly connected with the coating film splitter plate, and the coating film parison molding core is embedded in the In the cavity of the coated film parison forming plate, the coating plate is connected with the coated film parison forming plate; there is a injection port between the coating film splitter plate and the coated film parison forming plate, and the injection port is connected to the coating film The connecting body is connected; the tapered cavity of the coating film parison forming plate and the outer surface of the coating film parison forming core form a coating film parison forming channel, and the coating film parison forming channel communicates with the injection port. The molding channel of the coating film parison communicates with the cavity of the coating plate, and the effective coating thickness of the coating plate is 2-30 mm.

The mold for decorative plastic profiles is special in that it also includes an outer coating film parison forming plate and an outer coating film parison forming core;

The outer coating film parison forming plate is connected with the coating film parison forming plate, and the outer surface of the outer coating film parison core and the cavity of the outer coating film parison forming plate form the outer coating film parison forming channel , the coating film parison forming core extends into the cavity of the outer coating film parison forming core, and the coating film parison forming channel extends to the junction of the coating plate and the outer coating film parison forming plate, that is, the coating The film-coated parison molding core, the coating film parison forming plate, and the cavity of the outer coating film parison forming plate constitute the coating film parison forming channel; the outer coating film parison forming plate and the coating film parison There is an outer material injection port at the junction of the forming plates, and an outer coating coupling body is arranged on the outer material injection port.

A mold for decorative plastic profiles according to the utility model, due to the adoption of such a structure, effectively solves the flow imbalance of two or more polymer materials in the co-extrusion molding process of plastics Problems, that is, the interference of the coating and molding of the polymer material of the coating film on the extrusion molding of the main body of the plastic profile; no solvent and waste water discharge during the production process; no scratches during use, and long-term contact with the friction parts for life; waste products It can be crushed and recycled directly, and the recycling cost is low.

Description of drawings

Fig. 1 is a sectional view of the utility model.

Fig. 2 is a further improved sectional view of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Figure 1, a mold for decorative plastic profiles includes a main body parison extrusion die, the main body parison extrusion die is formed by a mold body 1, a splitter plate 2, a transition body 3, and a main body parison The core 4 and the main body parison forming die 5 are composed; the rear end of the mold body 1 is connected with the front end of the diverter plate 2, the rear end of the diverter plate 2 is connected with the front end of the transition body 3, and the transition body 3 is connected with the main body parison forming die 5 couplet.

It also includes a coating film parison molding die, and the coating film parison extrusion die includes a coating coupling body 8, a coating film splitter plate 6, a coating film parison forming plate 7, and a coating film parison forming Core 9, coated plate 10 constitute;

The main body parison forming core 4 runs through the mold body 1, the splitter plate 2, the transition body 3, the main body parison forming die 5, the coating film splitter plate 6, the coating film parison forming plate 7, and the coating film parison forming The cavity of the core 9 and the coating plate 10 constitutes the main body parison forming flow channel; the coating film splitter plate 6 is fixedly connected or integrally formed with the main body parison forming die 5, and the coating film parison forming plate 7 and The coating film splitter plate 6 is fixedly connected, the coating film parison forming core 9 is embedded in the cavity of the coating film parison forming plate 7, and the coating plate 10 is connected with the coating film parison forming plate 7; There is a feed port between the splitter plate 6 and the coating film parison forming plate 7, and the feed port is connected with the layer connecting body 8. The tapered cavity of the coated film parison forming plate 7 and the outer surface of the coated film parison forming core 9 form a coated film parison forming channel 91, and the coating film parison forming channel 91 communicates with the injection port. The coating film parison forming channel 91 communicates with the cavity of the coating plate 10, that is to say, the coating film parison forming channel 91 communicates with the main body parison forming flow channel, and the effective coating thickness of the coating plate 10 is 2-30mm .

According to the test, the effective coating thickness of the coating plate can meet the purpose of the utility model if the value is between 2-30mm.

As shown in Figure 2, as a further improvement of the mold of the present invention, it also includes an outer coating film parison forming plate 71, an outer coating film parison forming core 92;

The outer coating film parison forming plate 71 is connected with the coating film parison forming plate 7, and the outer surface of the outer coating film parison core 92 and the cavity of the outer coating film parison forming plate 71 constitute the outer coating film The parison forming channel 93, the coating film parison forming core 9 stretches into the cavity of the outer coating film parison forming core 92, and the coating film parison forming channel 91 extends to the coated plate 10 and the outer coating film The junction of the parison forming plate 71, that is, the cavity of the coating film parison forming core 9, the coating film parison forming plate 7, and the outer coating film parison forming plate 71 forms a coating film parison forming channel 91; There is an outer injection port at the junction of the outer coating film parison forming plate 71 and the coating film parison forming plate 7, and an outer coating coupling body 81 is arranged on the outer injection port.

Claims (2)

1. A mold for decorative plastic profiles, comprising a main body parison extrusion die, said main body parison extrusion die consists of a mold body, a splitter plate, a transition body, a main body parison forming core, and a main body parison forming port Die composition; It is characterized in that: it also includes a coating film parison extrusion die, The coating film parison extrusion die consists of a coating coupling body, a coating film splitter plate, a coating film parison forming plate, a coating film parison forming core, and a coating plate; the main body parison forming core The main parison is formed by the cavity of the through mold body, splitter plate, transition body, main body parison forming die, coating film splitter plate, coating film parison forming plate, coating film parison forming core and coating plate Forming flow channel; the coating film splitter plate is fixedly connected or integrated with the main body parison forming die, the coating film parison forming plate is fixedly connected with the coating film splitter plate, and the coating film parison molding core is embedded in the In the cavity of the coated film parison forming plate, the coating plate is connected with the coated film parison forming plate; there is a feed port between the coating film splitter plate and the coated film parison forming plate, and the coated film parison is formed The tapered cavity of the plate and the outer surface of the coating film parison forming core constitute the coating film parison forming channel, the coating film parison forming channel communicates with the injection port, and the coating film parison forming channel communicates with the coating film parison forming channel. The cavities of the plates are connected, and the effective coating thickness of the coated plates is 2-30mm. 2. A mold for decorative plastic profiles according to claim 1, characterized in that it also includes an outer coating film parison forming plate and an outer coating film parison forming core; The outer coating film parison forming plate is connected with the coating film parison forming plate, and the outer surface of the outer coating film parison core and the cavity of the outer coating film parison forming plate form the outer coating film parison forming channel , the coating film parison forming core extends into the cavity of the outer coating film parison forming core, and the coating film parison forming channel extends to the junction of the coating plate and the outer coating film parison forming plate, that is, the coating The film-coated parison molding core, the coating film parison forming plate, and the cavity of the outer coating film parison forming plate constitute the coating film parison forming channel; the outer coating film parison forming plate and the coating film parison There is an outer material injection port at the junction of the forming plates, and an outer coating coupling body is arranged on the outer material injection port.

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