Special core rod for disc type high-efficiency filter

Abstract

The utility model discloses a special core rod for a disc-type high-efficiency filter, which comprises a core rod body, eight material grooves are arranged on the surface of the core rod body, the top ends and the bottom ends of the material grooves are twisted at an angle, a connecting port is arranged at the top end of the core rod body, and the top end of the core rod body is communicated with the connecting port through a connecting groove. According to the utility model, the micro-spiral material groove is arranged, when in use, a melt spirally advances along the material groove, and then enters the connecting port through the connecting groove, so that the feeding pressure is closer to the discharging pressure, the feeding of the die is more sufficient, and the defects of overlarge film thickness fluctuation, water marks and the like caused by insufficient die pressure during extrusion are avoided; and the film-forming yield and quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of thin film production equipment technology, specifically to a core rod for a disc-type high-efficiency filter. Background Technology

[0002] Filtration is an essential step in the thin film production process. Its function is to remove impurities and crystal points of a certain size from the melt in order to ensure product quality.

[0003] The filter contains a filter element, which consists of a filter disc, a gasket, and a core rod. In the prior art, the core rod has a central hole inside and holes on its sides that communicate with the filter disc. After the external melt is filtered by the filter disc, it enters the core rod through the holes. Because of the holes, the feed pressure and the pressure inside the holes are unbalanced, resulting in insufficient feed into the mold. This leads to a decrease in the quality of the membrane, which can cause large fluctuations in thickness and watermarks or wrinkles on the membrane surface.

[0004] Therefore, it is of great significance to provide a dedicated core rod for disc-type high-efficiency filters to solve the problems existing in the current technology. Utility Model Content

[0005] In view of this, the purpose of this application is to provide a special core rod for disc-type high-efficiency filters to solve problems such as large fluctuations in thickness and water ripples and wrinkles on the membrane surface.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A core rod for a disc-type high-efficiency filter includes a core rod body with eight material grooves on its surface. The top and bottom of the material grooves are twisted at an angle. A connection port is provided at the top of the core rod body, and the top of the core rod body and the connection port are connected by a connecting groove.

[0008] Preferably, the depth of the trough gradually increases from the bottom upwards.

[0009] Preferably, the interior of the core rod body is a solid metal rod.

[0010] Preferably, the top of the trough is an arc-shaped curved surface.

[0011] Preferably, the top end of the mandrel body is provided with a connecting thread.

[0012] Preferably, the bottom end of the mandrel body is provided with a threaded connection port.

[0013] Preferably, the mandrel body is hard chrome plated and then polished.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention features a micro-spiral feed trough. During use, the melt spirals upward along the feed trough and then enters the connecting port through the connecting groove, making the feeding pressure and the discharge pressure closer together. This results in more sufficient material feeding into the mold, preventing wrinkles in the film during extrusion and improving film quality.

[0016] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the preferred embodiments of this application are described in detail below with reference to the accompanying drawings.

[0017] The above and other objects, advantages and features of this application will become more apparent to those skilled in the art from the following detailed description of specific embodiments in conjunction with the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the AA structure of this utility model;

[0021] Figure 3 This is a schematic cross-sectional view of the BB structure of this utility model;

[0022] Figure 4 This is a schematic cross-sectional view of the CC structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure during installation of this utility model.

[0024] In the diagram: 1. Mandrel body; 2. Material trough; 3. Connecting thread; 4. Connecting groove; 5. Connecting port; 6. Threaded interface. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. In the following description, specific details such as specific configurations and components are provided merely to help fully understand the embodiments of this application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. In addition, for clarity and brevity, descriptions of known functions and structures are omitted in the embodiments.

[0026] Furthermore, reference numerals and / or letters may be repeated in different examples within this application. Such repetition is for the purpose of simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or settings discussed.

[0027] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this article describes another type of relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it are in an "or" relationship.

[0028] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion.

[0029] Please see Figure 1-5 The present invention provides a technical solution for a core rod for a disc-type high-efficiency filter: it includes a core rod body 1, eight material grooves 2 are formed on the surface of the core rod body 1, the top and bottom of the material grooves 2 are twisted at 30 degrees, a connection port 5 is formed at the top of the core rod body 1, and the top of the core rod body 1 and the connection port 5 are connected by a connection groove 4.

[0030] The depth of the material tank 2 gradually increases from the bottom upwards. The higher the material tank 2, the greater the flow rate of the melt inside, increasing the cross-sectional area and further reducing pressure. The core rod body 1 is a solid metal rod inside. Both the top and bottom of the material tank 2 are provided with arc-shaped curved surfaces to reduce pressure. The top of the core rod body 1 is provided with a connecting thread 3 for connecting to the end cap of the filter. The bottom of the core rod body 1 is provided with a threaded connection port 6 for installing end plates.

[0031] In practical use, filter discs and gaskets are installed alternately on the mandrel body 1. Then, the top of the mandrel body 1 is installed on the end cap of the filter through the connecting thread 3. During use, the melt enters the material tank 2 after being filtered by the filter discs. The melt spirals forward through the material tank 2 and then enters the connecting port 5 through the connecting groove 4, making the feeding pressure and the discharge pressure closer. This results in more sufficient material feeding into the mold, avoids wrinkles in the film during extrusion, and improves the film quality.

[0032] The above description is merely a preferred embodiment of this utility model and does not limit the scope of protection of this utility model. For those skilled in the art, this utility model can have various modifications and variations. Any changes, modifications, substitutions, integrations, and parameter alterations made to these embodiments within the spirit and principles of this utility model, through conventional substitutions or methods that achieve the same function without departing from the principles and spirit of this utility model, fall within the scope of protection of this utility model.

Claims

1. A core rod for a disc type high efficiency particulate air filter, characterized by: The utility model relates to a core rod body (1) is provided with a plurality of material grooves (2) on the surface, the top and bottom of material groove (2) are twisted 30 degrees, the top of core rod body (1) is provided with a connecting port (5), and the top of core rod body (1) is communicated with connecting port (5) through connecting groove (4).

2. A disc-type high efficiency filter special core rod according to claim 1, characterized in that: The depth of the material groove (2) gradually deepens upward from the bottom.

3. A disc-type high efficiency filter special core rod according to claim 2, characterized in that: The core rod body (1) is a solid metal rod.

4. A disc-type high efficiency filter special core rod according to claim 3, characterized in that: The top and bottom of the material groove (2) are provided with arc curved surfaces.

5. A disc-type high efficiency filter special core rod according to claim 3, characterized in that: The top of the core rod body (1) is provided with a connecting thread (3).

6. A disc-type high efficiency filter special core rod as claimed in claim 3, characterized in that: The bottom of the core rod body (1) is provided with a threaded connecting port (6).

Images