A die-casting device for antistatic HDPE antislip pedal exudation

Abstract

This utility model belongs to the field of anti-slip pedal manufacturing technology, and particularly relates to a die device for the extrusion of antistatic HDPE anti-slip pedals, comprising a die body and a secondary cavity. The die body is fixedly mounted on a die base, and a receiving groove is provided inside the die body; the secondary cavity is disposed within the die body, and a gap exists between the inner wall of the receiving groove and the outer wall of the secondary cavity to form a molding cavity for molding the pedal; the inner wall of the receiving groove and the outer wall of the secondary cavity are coated with an anti-adhesion coating. The anti-adhesion coating of this utility model can prevent the molded pedal from sticking to the die body and the secondary cavity, providing a good demolding effect, effectively preventing surface scratches during pedal demolding that could damage the distribution structure of the antistatic agent inside the HDPE material, and ensuring the antistatic effect.

Description

Technical Field

[0001] This utility model belongs to the field of anti-slip pedal manufacturing technology, and in particular relates to a die device for the precipitation of antistatic HDPE anti-slip pedals. Background Technology

[0002] Marine aquaculture cage systems generally consist of circular cages, footboards, buoyancy tubes, handrails, guardrails, supports, stop blocks, and 90-degree bends. Footboards are a crucial component of these systems; walking on them, especially when splashed with water, is prone to slipping, making the anti-slip layer on the footboards essential. With increasing demands for safety and anti-static properties in cage aquaculture equipment, the market demand for anti-static anti-slip footboards continues to grow, and the market size is gradually expanding. Marine cage anti-static anti-slip footboards use high-density polyethylene (HDPE) as the main raw material, adding conductive materials or antistatic agents to reduce surface resistivity and achieve an anti-static effect. Production typically employs plastic extrusion molding technology, where the plastic raw material is heated and melted on an extruder, the melt is initially shaped on a die, and then cooled and solidified using a sizing mold and water tank. For example, patent number CN206066903U describes a rapid-cooling marine aquaculture cage footboard main body production mold.

[0003] During this process, HDPE tends to stick to the mold surface when it is in a molten state at high temperature, which can lead to problems such as difficulty in demolding, surface scratches or texture damage, thus affecting the anti-static effect of the anti-slip pedal. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a die-casting device for antistatic HDPE anti-slip pedals, thus achieving a good demolding effect.

[0005] In view of this, the present invention provides a die-casting device for antistatic HDPE anti-slip pedal exudation, comprising:

[0006] The mold body is fixedly mounted on the mold base, and a receiving groove is provided inside the mold body;

[0007] A secondary cavity is provided inside the mold body, and there is a gap between the inner wall of the receiving groove and the outer wall of the secondary cavity to form a forming cavity for forming the pedal;

[0008] The inner wall of the receiving groove and the outer wall of the sub-cavity are coated with an anti-adhesion coating.

[0009] In this technical solution, the anti-adhesion coating can prevent the molded pedal from sticking to the mold body and sub-cavity, providing a good demolding effect, effectively preventing surface scratches during pedal demolding that could damage the distribution structure of the antistatic agent inside the HDPE material, and ensuring the antistatic effect.

[0010] Furthermore, the anti-adhesion coating material is PTFE.

[0011] Furthermore, the thickness of the anti-adhesion coating is between 0.1 and 0.3 mm.

[0012] Furthermore, a mandrel is inserted through the center of the sub-cavity, and the mandrel is fixed to the mold body. The mandrel is used to fix the sub-cavity.

[0013] Furthermore, the sub-cavity is also provided with an air outlet, which is connected to an air-cooling pipe.

[0014] In this technical solution, the air-cooled pipe is the cold air pipe of the air-cooling mechanism commonly found on extruders.

[0015] Furthermore, each sub-cavity has at least two air vents.

[0016] Furthermore, the two vents are located on both sides of the mandrel, and the vents are connected in the sub-cavity by an annular groove.

[0017] In this technical solution, the annular groove allows one of the two air outlets to be connected to the air-cooling pipe, simplifying the structure.

[0018] Furthermore, multiple sub-cavities are arranged along the width direction within the receiving groove, with the air outlets on the sub-cavities located at both ends of the width direction positioned close to the middle sub-cavity.

[0019] In this technical solution, the temperature in the middle of the receiving tank is the most difficult to dissipate. Therefore, the air outlets of the sub-cavities at both ends are close to the middle of the receiving tank, which can improve heat dissipation efficiency and increase the utilization rate of cold air.

[0020] The beneficial effects of this utility model are:

[0021] 1. The anti-adhesion coating can prevent the molded pedal from sticking to the mold body and sub-cavity, providing a good demolding effect and effectively preventing surface scratches during pedal demolding that could damage the distribution structure of the antistatic agent inside the HDPE material, thus ensuring the antistatic effect.

[0022] 2. By connecting the two air outlets through the annular groove, only one of the two air outlets needs to be connected to the air-cooling pipe, which simplifies the structure.

[0023] 3. The temperature in the middle of the receiving tank is the most difficult to dissipate. Therefore, the air outlets of the sub-cavities at both ends are close to the middle of the receiving tank, which can improve heat dissipation efficiency and increase the utilization rate of cold air. Attached Figure Description

[0024] Figure 1 This is a sectional view of the die assembly;

[0025] Figure 2 yes Figure 1 A cross-sectional view along the AA direction;

[0026] Figure 3 yes Figure 1 Cross-sectional view along the BB direction;

[0027] The markings in the diagram are as follows:

[0028] 1. Mold body; 2. Sub-cavity; 3. Receiving groove; 4. Molding cavity; 5. Mandrel; 6. Vent hole; 7. Annular groove. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0030] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0031] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0032] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0033] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0034] Example 1:

[0035] like Figure 1-3 As shown, a die-casting device for antistatic HDPE anti-slip tread extrusion includes:

[0036] Mold body 1, the mold body 1 is fixedly mounted on the mold base, and a receiving groove 3 is provided inside the mold body 1;

[0037] Sub-cavity 2, the sub-cavity 2 is set inside the mold body 1, and there is a gap between the inner wall of the receiving groove 3 and the outer wall of the sub-cavity 2, which is a forming cavity 4 for forming the pedal;

[0038] The inner wall of the receiving groove 3 and the outer wall of the sub-cavity 2 are coated with an anti-adhesion coating.

[0039] The anti-adhesion coating can prevent the molded pedal from sticking to the mold body 1 and the sub-cavity 2, providing a good demolding effect and effectively preventing surface scratches during pedal demolding that could damage the distribution structure of the antistatic agent inside the HDPE material, thus ensuring the antistatic effect.

[0040] The anti-adhesion coating material is PTFE.

[0041] The thickness of the anti-adhesion coating is between 0.1 and 0.3 mm.

[0042] A core rod 5 is inserted through the center of the sub-cavity 2. The core rod 5 is fixed to the mold body 1 and is used to fix the sub-cavity 2.

[0043] The sub-cavity 2 is also provided with an air outlet 6, which is connected to the air-cooling pipe.

[0044] The air-cooling pipe is the cooling air pipe of the air-cooling mechanism commonly found on extruders. Each sub-cavity 2 has at least two air outlets 6. The two air outlets 6 are located on both sides of the mandrel 5, and the air outlets 6 are connected in the sub-cavity 2 by an annular groove 7. The connection through the annular groove 7 allows only one of the two air outlets 6 to be connected to the air-cooling pipe, simplifying the structure.

[0045] Multiple sub-cavities 2 are arranged along the width direction inside the receiving groove 3. The air outlets 6 on the sub-cavities 2 at both ends of the width direction are located close to the middle sub-cavity 2. The temperature in the middle of the receiving groove 3 is the most difficult to dissipate. Therefore, the air outlets 6 of the sub-cavities 2 at both ends are located close to the middle of the receiving groove 3, which can improve heat dissipation efficiency and increase the utilization rate of cold air.

[0046] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A die set for anti-static HDPE non-slip deck board extrusion, characterized in that ,include: The mold body (1) is fixedly mounted on the mold base, and a receiving groove (3) is provided inside the mold body (1). Sub-cavity (2), the sub-cavity (2) is set inside the mold body (1), and there is a gap between the inner wall of the receiving groove (3) and the outer wall of the sub-cavity (2) for forming the tread plate (4). The inner wall of the receiving groove (3) and the outer wall of the sub-cavity (2) are coated with an anti-adhesion coating.

2. The anti-static HDPE slip-resistant decking extrusion die set of claim 1, wherein, The anti-adhesion coating material is PTFE.

3. The anti-static HDPE slip-resistant decking extrusion die set of claim 1, wherein, The thickness of the anti-adhesion coating is between 0.1 and 0.3 mm.

4. The anti-static HDPE slip-resistant decking extrusion die set of claim 1, wherein, A core rod (5) is inserted through the center of the sub-cavity (2). The core rod (5) is fixed to the mold body (1) and is used to fix the sub-cavity (2).

5. The anti-static HDPE slip-resistant decking extrusion die set of claim 1, wherein, The sub-cavity (2) is also provided with an air outlet (6), which is connected to the air-cooling pipe.

6. The die-casting device for antistatic HDPE anti-slip tread exudation according to claim 5, characterized in that, Each sub-cavity (2) has at least two air vents (6).

7. The die-casting device for antistatic HDPE anti-slip tread exudation according to claim 6, characterized in that, Two air vents (6) are located on both sides of the mandrel (5), and the air vents (6) are connected in the sub-cavity (2) through an annular groove (7).

8. The die-casting device for antistatic HDPE anti-slip pedal exudation according to claim 7, characterized in that, Multiple sub-cavities (2) are provided in the receiving groove (3) along the width direction. The air outlets (6) on the sub-cavities (2) at both ends of the width direction are located close to the middle sub-cavity (2).

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