CN106215476A - A kind of coating defecator - Google Patents

Abstract

The invention relates to a coating filter device, comprising a shell, an upper cover connected to the upper end of the shell, a lower cover connected to the lower end of the shell and filter paper arranged in the shell, the lower cover is provided with a slurry inlet, and the upper cover is provided with The slurry outlet, the shell is tubular, the filter paper is composed of an inner bracket and an outer bracket that are coaxial and clamped together, an air outlet is provided on the top of the filter paper, and an annular groove is provided in the outer peripheral wall of the inner bracket of the filter paper , gauzes are respectively arranged in the annular groove and below the air outlets in the filter paper. The structure design of the invention is reasonable, the slurry adopts the conveying mode overflowing from the inside to the outside, the supply of the slurry is more smooth, the problem of the difficulty of inputting the slurry from the outside to the inside is solved, the replacement frequency of the filter paper is reduced, and the disassembly is very convenient , saves manpower, and smoothly discharges the gas in the slurry, greatly reducing the formation of air bubbles, improving the quality of coating, increasing production efficiency, and reducing costs.

Description

A coating filter device

technical field

The invention belongs to the technical field of coating machines, and in particular refers to a coating filtering device for coating machines.

Background technique

Coating refers to uniformly, continuously or intermittently coating the prepared paste-like viscous slurry on the substrate through coating equipment. In order to ensure the coating quality, a filter device is usually installed on the slurry delivery pipeline. Due to the unreasonable structural design of the existing coating filter device, the slurry supply is not smooth, and the gas in the slurry cannot be discharged, which is prone to problems such as continuous slurry coating, inaccurate coating size and thin coating surface density , Seriously affect the coating quality and coating accuracy.

Contents of the invention

The technical problem to be solved by the present invention is to provide a coating filter device with smooth slurry supply and smooth exhaust.

In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions:

A coating filter device, comprising a shell, an upper cover connected to the upper end of the shell, a lower cover connected to the lower end of the shell and filter paper arranged in the shell, the lower cover is provided with a slurry inlet, and the upper cover is provided with a slurry outlet , the shell is tubular, the filter paper is composed of an inner bracket and an outer bracket that are coaxial and clamped together, an air outlet is arranged on the top of the filter paper, and an annular groove is arranged in the outer peripheral wall of the inner bracket of the filter paper. A gauze is respectively arranged in the shaped groove and below the air outlet in the filter paper; the slurry enters the filter paper from the slurry inlet and overflows from the inside of the filter paper, and flows out from the slurry outlet.

Preferably, the above-mentioned filter paper is PP filter paper.

The present invention has following remarkable effect:

The structure design of the coating filter device of the present invention is reasonable. By adopting the above structure, the slurry is overflowed and transported from the inside to the outside, so that the supply of the slurry is smoother, which solves the problem that the slurry is input from the outside to the inside. The number of replacements is very convenient, the disassembly is very convenient, it saves manpower, and the gas in the slurry is smoothly discharged, which greatly reduces the formation of air bubbles, improves the quality of coating, improves production efficiency, and reduces costs.

Description of drawings

Accompanying drawing 1 is the three-dimensional structure schematic diagram of the present invention;

Accompanying drawing 2 is the schematic diagram of decomposition structure of the present invention;

Accompanying drawing 3 is the schematic structural representation of filter paper front view of the present invention;

Accompanying drawing 4 is the schematic diagram of the sectional structure of drawing 3 A-A.

Explanation of reference symbols:

1 shell 2 upper cover 21 slurry outlet 3 lower cover 31 slurry inlet 4 filter element 40 air outlet 41 inner bracket 42 outer bracket 5 gauze.

detailed description

In order to facilitate the understanding of those skilled in the art, the present invention will be further described in detail below with reference to the drawings and embodiments.

As shown in Figures 1-4, the coating filtering device disclosed by the present implementation is used for coating equipment, and includes a tubular housing 1, an upper cover 2 connected to the upper end of the housing 1, a lower cover 3 connected to the lower end of the housing 1, and a lower cover located on the housing. The filter paper 4 in 1 adopts a tubular shell 1, and the upper cover 2 and the lower cover 3 are respectively connected to the shell 1 for convenience; the lower cover 3 is provided with a slurry inlet 31, and the upper cover 2 is provided with a slurry outlet 21. The filter paper 4 is coaxially installed in the housing 1. The filter paper 4 is composed of an inner bracket 41 and an outer bracket 42 coaxially connected to each other. An air outlet 40 is provided on the top of the filter paper 4; The annular groove is provided with gauze 5 respectively in the annular groove and the upper part of the filter paper 4, and the upper part of the filter paper 4 is below the air outlet 40.

When this new type of work is implemented, the slurry enters the inside of the filter paper 4 from the slurry inlet 31 of the lower cover 3, and the slurry moves from bottom to top in the filter paper 4. After a part of the slurry is filtered through the filter paper 4 and reaches the top of the filter paper 4, Through the gauze 5, the gas in the slurry is discharged from the gauze 5 to the air hole 40 before the slurry, thereby reducing the formation of air bubbles in the slurry; the other part of the slurry is filtered through the filter paper 4 to reach around the side of the filter paper 4. The gauze 5 in the annular groove reaches the outside of the filter paper 4, that is, in the casing 1, and the gas in the slurry is also discharged from the casing 1 at the gauze 5 before the slurry, which also reduces the formation of air bubbles in the slurry; The gas discharged from the device is discharged from the slurry outlet 21 before the slurry reaches the slurry outlet 21, thereby greatly reducing the formation of air bubbles in the slurry and greatly improving the coating quality.

In this embodiment, the filter paper 4 is made of PP (polypropylene) filter paper. The PP filter paper is disposable, does not need to be cleaned, is convenient to disassemble, and is easy to replace. Compared with stainless steel, there is no iron filings, the pore size is uniform, and the filtration area is larger than that of stainless steel.

The structure design of the coating and filtering device of the present invention is reasonable, the slurry adopts the feeding method of overflowing from the inside to the outside, the supply of the slurry is smoother, the problem of the difficulty of feeding the slurry from the outside to the inside is solved, and the replacement of filter paper is reduced The number of times, the disassembly is very convenient, saves manpower, and smoothly discharges the gas in the slurry, greatly reducing the formation of air bubbles, improving the quality of coating, increasing production efficiency, and reducing costs.

The above-mentioned embodiments are preferred solutions for the realization of the present invention, and are not exhaustive, and the present invention may also have other transformation forms under the same concept. It should be noted that, without departing from the concept of the present invention, any obvious replacements are within the protection scope of the present invention.

Claims (2)

1. A coating filter device, comprising a casing (1), an upper cover (2) connected to the upper end of the casing, a lower cover (3) connected to the lower end of the casing and a filter paper (4) arranged in the casing, the lower cover is A slurry inlet (31) is provided, and a slurry outlet (21) is provided on the upper cover, which is characterized in that: the shell is tubular, and the filter paper is composed of an inner bracket (41) and an outer bracket that are coaxial and clamped together (42), the top of the filter paper is provided with an air outlet (40), an annular groove is arranged in the outer peripheral wall of the filter paper inner support, and a gauze (5 ); the slurry enters the filter paper from the slurry inlet and overflows from the inside of the filter paper, and flows out from the slurry outlet. 2. The coating filter device according to claim 1, characterized in that: the filter paper is PP filter paper.