CN220779243U

CN220779243U - Horizontal filter core rod for diaphragm

Info

Publication number: CN220779243U
Application number: CN202321324194.1U
Authority: CN
Inventors: 常志军; 刘建; 臧其鹿
Original assignee: Kanghui Nantong New Materials Technology Co ltd
Current assignee: Kanghui Nantong New Materials Technology Co ltd
Priority date: 2023-05-26
Filing date: 2023-05-26
Publication date: 2024-04-16
Anticipated expiration: 2033-05-26

Abstract

The utility model relates to the technical field of lithium ion battery diaphragm production, in particular to a horizontal filter mandrel for a diaphragm. The horizontal filter core rod for the diaphragm comprises a core rod body, wherein one or more groups of fluid grooves are formed in the surface of the core rod body, a liquid outlet is formed in one end of the core rod body, and the liquid outlet is communicated with the fluid grooves. According to the utility model, one or more groups of fluid grooves are arranged on the surface of the core rod body, so that the fluidity of the melt passing through the core rod is improved, the condition of insufficient compactness of the melt is eliminated, and the quality of the sheet is improved. Meanwhile, the core rod is prevented from being blocked by melt, so that dead points are avoided, black spots after raw material carbonization are avoided, the yield is greatly improved, and production resources are saved.

Description

Horizontal filter core rod for diaphragm

Technical Field

The utility model relates to the technical field of lithium ion battery diaphragm production, in particular to a horizontal filter mandrel for a diaphragm.

Background

In the production of lithium ion battery separator, due to the requirement of safety of lithium ion battery separator, after the raw materials are extruded and melted to form a melt, the melt is filtered by a filter before reaching a die head through a horizontal pipeline to form a sheet, so that the melt is clean.

At present, the type of the filter gradually evolves from an early plate filter and a vertical butterfly filter to a horizontal butterfly filter, and a core rod of the filter used in the prior art is six-sided porous, so that on one hand, the situation of insufficient compactness occurs due to the obstruction of the flow of melt after passing through the core rod, and black dark lines appear after a sheet is formed; on the other hand, the core rod holes are easy to be blocked to form dead points, the black spots of the carbonized raw materials are more after the used raw materials are required to run for a long time until the black spots disappear, and the waste of products is caused.

Disclosure of Invention

First, the technical problem to be solved

The utility model aims to solve the problem that the existing filter core rod is not smooth in circulation and is easy to block.

(II) technical scheme

In order to solve the technical problems, the utility model provides a horizontal filter core rod for a diaphragm, which comprises a core rod body, wherein one or more groups of fluid grooves are formed in the surface of the core rod body, a liquid outlet is formed in one end of the core rod body, and the liquid outlet and the fluid grooves are communicated with each other.

Further, four groups of fluid grooves are formed in the surface of the core rod body, and the fluid grooves are arranged at equal intervals along the circumferential direction of the core rod body.

Further, the cross section of the fluid groove is semicircular.

Further, the fluid groove extends towards two ends along the radial direction of the mandrel body, and two ends of the fluid groove are cambered surfaces.

Further, the through hole through which the liquid outlet and the fluid groove are mutually communicated is provided with one or more positions.

Further, a plurality of groups of filter laminations are sleeved on the core rod body.

Further, a tray is arranged at one end of the core rod body, a gland is arranged at the other end of the core rod body, and a plurality of groups of filter laminations are arranged between the tray and the gland.

Further, the filter cartridge also comprises a housing, wherein the housing is sleeved outside the plurality of groups of filter laminations.

(III) beneficial effects

The technical scheme of the utility model has the following advantages: by arranging one or more groups of fluid grooves on the surface of the core rod body, the fluidity of the melt passing through the core rod is improved, the condition of insufficient compactness of the melt is eliminated, and the quality of the sheet is improved. Meanwhile, the core rod is prevented from being blocked by melt, so that dead points are avoided, black spots after raw material carbonization are avoided, the yield is greatly improved, and production resources are saved.

Drawings

FIG. 1 is a schematic view of a horizontal filter plug for a septum of the present utility model;

in the figure: 1. a mandrel body; 2. a fluid tank; 3. a liquid outlet; 4. a filter stack; 5. a tray; 6. and (5) pressing cover.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus 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 relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1, the utility model provides a horizontal filter core rod for a diaphragm, which comprises a core rod body 1, wherein one or more groups of fluid grooves 2 are arranged on the surface of the core rod body 1, a liquid outlet 3 is arranged at one end of the core rod body 1, and the liquid outlet 3 and the fluid grooves 2 are mutually communicated. By arranging one or more groups of fluid grooves 2 on the surface of the core rod body 1, the fluidity of the melt passing through the core rod is improved, the condition of insufficient compactness of the melt is eliminated, and the quality of the sheet is improved. Meanwhile, the core rod is prevented from being blocked by melt, so that dead points are avoided, black spots after raw material carbonization are avoided, the yield is greatly improved, and production resources are saved.

In some embodiments, four sets of fluid grooves 2 are provided on the surface of the mandrel body 1, and the fluid grooves 2 are equally spaced along the circumferential direction of the mandrel body 1, so that the mandrel body 1 can receive the melt from multiple directions.

In some embodiments, the cross section of the fluid tank 2 is semicircular, so that melt adhesion is not easy to cause, and the fluid tank is good in fluidity and convenient to clean.

In some embodiments, the fluid grooves 2 extend towards two ends along the radial direction of the mandrel body 1, and the two ends of the fluid grooves 2 are cambered surfaces, so that the guiding effect is better.

In some embodiments, the through hole that the liquid outlet 3 and the fluid tank 2 are mutually communicated is provided with one or more positions.

In some embodiments, a plurality of sets of filter stacks 4 are sleeved on the mandrel body 1, and the filter stacks 4 are used for filtering the melt.

In some embodiments, the mandrel body 1 is provided with a tray 5 at one end and a gland 6 at the other end, and a plurality of sets of filter laminations 4 are disposed between the tray 5 and the gland 6, and the plurality of sets of filter laminations 4 are clamped and fixed on the mandrel body 1 by the gland 6 and the tray 5.

In some embodiments, a housing is also included, which is sleeved outside the plurality of sets of filter stacks 4, and which is not shown in particular in the drawings.

When the novel plastic sheet material filtering device is used, melt enters the shell and fills the shell, then flows from the filter lamination 4 to the central core rod body 1, the melt is filtered after passing through the filter lamination 4, and reaches the core rod body 1 to flow from the fluid tank 2 to the liquid outlet 3, so that the blocking holes and the fluid resistance generated when passing through the holes are avoided relative to the traditional core rod, the product yield is greatly improved, the production resources are saved, and the sheet material quality is favorably improved.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims

1. A horizontal filter plug for a septum, characterized by: the device comprises a core rod body, wherein one or more groups of fluid grooves are formed in the surface of the core rod body, a liquid outlet is formed in one end of the core rod body, and the liquid outlet and the fluid grooves are communicated with each other; a plurality of groups of filter laminations are sleeved on the core rod body; the plug body one end is provided with the tray, and the other end is provided with the gland, and multiunit filter lamination sets up the tray with between the gland.

2. The horizontal filter plug for a septum of claim 1, wherein: four groups of fluid grooves are formed in the surface of the core rod body, and the fluid grooves are arranged at equal intervals along the circumferential direction of the core rod body.

3. The horizontal filter plug for a septum of claim 1, wherein: the cross section of the fluid groove is semicircular.

4. The horizontal filter plug for a septum of claim 1, wherein: the fluid groove extends towards two ends along the radial direction of the core rod body, and two ends of the fluid groove are cambered surfaces.

5. The horizontal filter plug for a septum of claim 1, wherein: the through holes which are communicated with the fluid grooves are formed in one or more positions.

6. The horizontal filter plug for a septum of claim 1, wherein: the filter also comprises a shell, wherein the shell is sleeved outside the plurality of groups of filter laminations.