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Air filter and preparation process thereof

A preparation process and air filter technology, which is applied in mechanical equipment, dispersed particle filtration, machines/engines, etc., can solve the problems of low production efficiency, high process control difficulty, and unsightly appearance of air filters, and achieve a smooth and beautiful appearance of the product, The effect of low process control difficulty and few appearance defects

Inactive Publication Date: 2012-08-15
HKR SPECIALTY EQUIP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production efficiency of this kind of air filter is low, the process control is difficult, and a single product must be dried during the production process, which consumes a lot of energy, and the surface is prone to defects such as pores, and the appearance is not beautiful.

Method used

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  • Air filter and preparation process thereof
  • Air filter and preparation process thereof
  • Air filter and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Reference figure 1 As shown, the air filter of the present invention includes a fixed frame 1 and a filter element 2. The peripheral edges of the filter element 2 are embedded in the frame of the fixed frame 1, the material of the fixed frame 1 is TPE, and the filter element 2 includes Two layers of iron nets and a non-woven fabric sandwiched between the two layers of iron nets, the fixed frame 1 and the filter element 2 are integrally formed through an insert molding process.

[0067] In Example 1, refer to figure 2 As shown, the non-woven fabric is a pleated non-woven fabric coated with an air filter. Coating air filter oil can not only ensure the air flow, but also effectively ensure the air filter's ability to capture dust; and the pleated design increases the surface area of ​​the filter element, thereby increasing the air filter's air flow.

[0068] In Example 1, the production formula of the TPE includes the following components by weight:

[0069] 15 parts of EPDM ru...

Embodiment 2

[0088] Reference figure 2 As shown, the preparation method of the air filter of the present invention includes the following steps:

[0089] Step 1. Prepare the filter element, including the following steps:

[0090] A. Oiling: spray the air filter oil evenly on the non-woven fabric;

[0091] The non-woven fabric coated with air filter oil can not only ensure the ventilation rate, but also effectively ensure the ability to capture dust;

[0092] B. Slitting: the non-woven fabric obtained in step 1 is cut according to the size required by the product using an infrared photoelectric correction slitting machine;

[0093] C. Discount: sandwich the cut non-woven fabric between two iron nets, and discount according to the product's required folding height, with a control accuracy of ±0.2mm;

[0094] The pleated design enlarges the surface area of ​​the filter element, thus increasing the ventilation of the air filter.

[0095] D. Cutting: Cut the discounted non-woven fabric and iron mesh accor...

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Abstract

The invention provides an air filter which comprises a fixed frame and a filter element, wherein the peripheral edges of the filter element are embedded into a frame body of the fixed frame; the fixed frame is made of a thermoplastic elastomer (TPE); the filter element is nonwoven cloth; and the fixed frame and the filter element are integrated through an insert forming process. The invention also provides a preparation method for the air filter. The preparation method comprises the following steps of preparing the filter element, forming inserts and treating after forming. According to the air filter and the preparation method thereof, the air filter is high in sealing property, large in ventilating amount and flat and attractive in appearance, can be recycled and degraded and is particularly suitable for automobile engines, so that the combustion efficiency and the power of the engine are improved effectively.

Description

Technical field [0001] The invention relates to the field of filters, in particular to an air filter and its preparation process. Background technique [0002] The air filter, that is, the air filter, is a device used to remove particulate impurities in the air, and includes an air filter fixing frame and a filter element. There are mainly two types of existing air filters: [0003] 1. The fixed frame is made of hard outer frames such as PP or PA and rubber side bands, and the filter element is made of paper. An air filter is formed between the fixed frame and the filter element through an injection molding process. This type of air filter has low air flow. Due to the poor flexibility of the fixed frame material, gaps between the fixed frame and the filter element are likely to occur during use, resulting in poor sealing, and the fixed frame of this material can only One-time use, it is difficult to recycle and cannot be degraded, which does not meet the requirements of low cost ...

Claims

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Application Information

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IPC IPC(8): B01D46/52F02M35/024
CPCB01D46/10B01D46/52F02M35/024B01D46/0002F02M35/0245F02M35/02408B01D46/521F02M35/02491
Inventor 朱崇明
Owner HKR SPECIALTY EQUIP
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