CN220362954U

CN220362954U - Two-machine double-layer PE co-extrusion end face center feeding die

Info

Publication number: CN220362954U
Application number: CN202321999022.4U
Authority: CN
Inventors: 张伟光
Original assignee: Guangdong Liansu Machinery Manufacturing Co Ltd
Current assignee: Guangdong Liansu Machinery Manufacturing Co Ltd
Priority date: 2023-07-27
Filing date: 2023-07-27
Publication date: 2024-01-19
Anticipated expiration: 2033-07-27

Abstract

The utility model provides a double-machine double-layer PE co-extrusion end face center feeding die which comprises a feeding end, a spiral die, a middle die, a core die and a port die, wherein an end face center feeding inner spiral body, an end face center feeding outer spiral body and a spiral outer die are arranged on the spiral die, an inner spiral runner is arranged between the center feeding inner spiral body and the end face center feeding outer spiral body, an outer spiral runner is arranged between the end face center feeding outer spiral body and the spiral outer die, an outer layer feeding port connected with the outer spiral runner and an inner layer feeding port connected with the inner spiral runner are arranged at the feeding end, the spiral die, the middle die and the core die are sequentially arranged, the port die is arranged outside the core die in a surrounding mode, an extruder extrudes an inner layer, an extruder extrudes an outer layer, and is polymerized in a merging pressure equalizing section after being extruded respectively from the end face center feeding spiral bodies, and a double-layer pipe product with qualified quality can be efficiently produced by one die through adjusting the eccentricity of the port die, and the problem of low co-production speed of double-layer PE is solved.

Description

Two-machine double-layer PE co-extrusion end face center feeding die

Technical Field

The utility model relates to a two-machine double-layer PE co-extrusion end face center feeding die.

Background

The existing double-layer PE pipe needs to form an inner-layer PE pipe before covering an outer-layer PE pipe outside the inner-layer PE pipe during production, and the production mode is troublesome and time-consuming and labor-consuming.

Disclosure of Invention

The utility model provides a two-machine double-layer PE co-extrusion end face center feeding die which comprises a feeding end, a spiral die, a middle die, a core die and a mouth die, wherein an end face center feeding inner spiral body, an end face center feeding outer spiral body and a spiral outer die are arranged on the spiral die, an inner spiral flow channel is arranged between the center feeding inner spiral body and the end face center feeding outer spiral body, an outer spiral flow channel is arranged between the end face center feeding outer spiral body and the spiral outer die, an outer layer feeding hole connected with the outer spiral flow channel and an inner layer feeding hole connected with the inner spiral flow channel are arranged at the feeding end, the spiral die, the middle die and the core die are sequentially arranged, and the mouth die is circumferentially arranged outside the core die.

In one or more embodiments, the outer spiral runner and the inner spiral runner overlap to form a spiral runner at the discharge end of the spiral die.

In one or more embodiments, the middle die is provided with an outer die and an inner die, a middle runner is arranged between the outer die and the inner die, and the middle runner is communicated with the spiral runner.

In one or more embodiments, the core mold is connected to the inner mold, and a molding passage is provided between the core mold and the neck mold, and the molding passage is in communication with the middle flow passage.

The utility model has the beneficial effects that: one extruder extrudes the inlayer, and one extruder extrudes the skin, and through two screw bodies of follow terminal surface center feeding respectively after extruding in converging the equalizing section and repolymerize, through adjusting the die eccentricity alright be high-efficient with the qualified bilayer tubular product of a mould production quality, has solved the problem that bilayer PE co-production speed is slow.

Drawings

FIG. 1 is a schematic diagram of a two-machine double-layer PE co-extrusion end face center feed die.

Detailed Description

The present application is further described with reference to the following drawings:

referring to fig. 1, a two-machine double-layer PE co-extrusion end face center feeding die comprises a feeding end 1, a spiral die 2, a middle die 3, a core die 42 and a mouth die 43, wherein an end face center feeding inner spiral body 21, an end face center feeding outer spiral body 22 and a spiral outer die 23 are arranged on the spiral die 2, an inner spiral runner 24 is arranged between the center feeding inner spiral body 21 and the end face center feeding outer spiral body 22, an outer spiral runner 25 is arranged between the end face center feeding outer spiral body 22 and the spiral outer die 23, the feeding end 1 is provided with an outer layer feeding port 12 connected with the outer spiral runner 25 and an inner layer feeding port 11 connected with the inner spiral runner 24, the feeding end 1, the spiral die 2, the middle die 3 and the core die 42 are sequentially arranged, and the mouth die 43 is circumferentially arranged outside the core die 42.

Further, at the discharge end of the spiral die 2, the outer spiral runner 25 and the inner spiral runner 24 are overlapped to form a spiral runner.

Further, the middle mold 3 is provided with an outer mold 33 and an inner mold 32, a middle runner 33 is provided between the outer mold 33 and the inner mold 32, and the middle runner 31 communicates with the spiral runner.

Further, a core mold 42 is connected to the inner mold 32, and a molding passage 41 is provided between the core mold 42 and the die 43, and the molding passage 41 communicates with the intermediate flow passage 31.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "first", second "may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The above-mentioned preferred embodiments should be regarded as illustrative examples of embodiments of the present application, and all such technical deductions, substitutions, improvements and the like which are made on the basis of the embodiments of the present application, are considered to be within the scope of protection of the present patent.

Claims

1. The utility model provides a two-machine double-deck PE crowded terminal surface center feeding mould altogether, its characterized in that, including feed end, spiral mould, well mould, mandrel and bush, be provided with terminal surface center feeding internal screw body, terminal surface center feeding external screw body and spiral external mold on the spiral mould, be provided with interior spiral runner between central feeding internal screw body, the terminal surface center feeding external screw body, be provided with outer spiral runner between terminal surface center feeding external screw body and the spiral external mold, the feed end is provided with the inlayer feed inlet of connecting outer spiral runner and connecting interior spiral runner, feed end, spiral mould, well mould, mandrel set gradually, the bush encircles and sets up outside the mandrel.

2. The two-machine double-layer PE co-extrusion end face center feed die of claim 1, wherein the outer spiral runner and the inner spiral runner coincide to form a spiral runner on the discharge end of the spiral die.

3. The two-machine double-layer PE co-extrusion end face center feeding die according to claim 2, wherein the middle die is provided with an outer die and an inner die, a middle runner is arranged between the outer die and the inner die, and the middle runner is communicated with the spiral runner.

4. The two-machine double-layer PE co-extrusion end face center feeding die according to claim 3, wherein the core die is connected with the inner die, a forming die passage is arranged between the core die and the mouth die, and the forming die passage is communicated with the middle flow passage.