Blow molding shaping structure for air inlet of air filter

Abstract

The utility model discloses a blow molding shaping structure for an air inlet of an air filter, which comprises a shaping part which is subjected to blow molding together with the opening part of the air inlet of the air filter, and a connecting part between the shaping part and the air inlet of the air filter is transferred and designed at the top of the air inlet of the air filter. The residual flash only exists at the top of the air inlet of the air filter, a plurality of air inlets can be conveniently cleaned at the same time, even automatic equipment is developed for machining, the difficulty and workload of manual machining are reduced, and therefore the manufacturing efficiency of the air filter is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of air filter, concretely is a blow molding and shaping structure of air filter air inlet. BACKGROUND

[0002] Air filter is commonly used in the field of motor vehicle, mainly through the inside filter element to filter the impurities in the air and supply to the engine combustion work. Most of the air filter is manufactured by blow molding process, and in order to ensure the air intake, the diameter of the air inlet is designed to be relatively large, and the spacing between the mouth and the relative wall is large and lacks mutual supporting support, so that the air inlet is easily deformed under the heat and cold alternation. Therefore, in the blow molding and shaping manufacturing process of the air filter, the shaping part is blow molded and shaped at the air inlet mouth position, and the air inlet shape is supported. After the air filter is blow molded and made, the shaping part is cut off. At present, the shaping part 2` is mainly connected to the inner edge of the air inlet 11` mouth (as shown in Figure 1 、 Figure 2 After cutting off the shaping part, a large amount of residual flash is formed on the inner edge of the air inlet mouth, and the residual flash can only be removed by artificial one by one, which greatly affects the manufacturing efficiency of the air filter. UTILITY MODEL CONTENTS

[0003] In order to overcome the defects of the prior art, the utility model provides a blow molding and shaping structure of air filter air inlet.

[0004] The utility model adopts the technical scheme that:

[0005] A blow molding and shaping structure of air filter air inlet, comprising a shaping part blow molded and shaped with the air inlet mouth of the air filter, and the connecting part between the shaping part and the air inlet mouth of the air filter is located at the top of the air filter air inlet.

[0006] The air filter air inlet is square, and the shaping part is a square box shape structure.

[0007] The connecting part between the shaping part and the top surface of the air filter air inlet extends outward and forms a thickness difference d.

[0008] The circumferential shape of the shaping part is consistent with the circumferential shape of the air filter air inlet.

[0009] The shaping part is hollow, and the inner wall of the connecting part and the inner edge of the air inlet mouth of the air filter are smoothly connected.

[0010] The utility model discloses beneficial effect is: the utility model discloses the junction part between the shaping part and air filter air inlet is transferred design at the top surface of air filter air inlet, when the shaping part is cut and removes, the residual burr only exists in the top surface of air filter air inlet, convenient multiple simultaneous cleaning even the development automatic equipment is processed, is favorable to reduce the difficulty and workload of manpower processing, thereby improve the manufacturing efficiency of air filter. BRIEF DESCRIPTION OF DRAWINGS

[0011] The utility model is further illustrated below in combination with the drawings and examples.

[0012] Figure 1 It is the structural diagram of prior art air filter;

[0013] Figure 2 It is Figure 1 the enlarged view of A of

[0014] Figure 3 It is the structural diagram of the utility model air filter;

[0015] Figure 4 It is the sectional view of the utility model. DETAILED DESCRIPTION

[0016] Referring to Figure 3 , One air filter of Figure 4 , including the main part 1 of constituting filter clean cavity and the air inlet and air outlet of communicating filter clean cavity.It is formed through blow molding process blow molding, and its air inlet adopts blow molding shaping structure, including the shaping part 2 of blow molding forming with air filter air inlet 11 mouth department, the junction part 21 of shaping part 2 and air filter air inlet 11 mouth department is located at the top of air filter air inlet 11, when shaping part 2 is cut and removes, the residual burr only exists in the top of air filter air inlet 11, it is convenient to clean even the development automatic equipment is cut and processed, is favorable to reduce the difficulty and workload of manpower processing, thereby improve the manufacturing efficiency of air filter

[0017] In the embodiment, air filter air inlet 11 is square, therefore shaping part 2 adopts square box shape structure, if air filter air inlet 11 is circular, then shaping part 2 adopts cylindrical box structure, specific thus actual and edge, but shaping part 2 are all the box type structure of being enclosed in the top surface of air filter air inlet 11.

[0018] As the preferred scheme of the utility model, the length of the junction part 21 between the shaping part 2 and the top surface of the air filter air inlet 11 is between 20mm and 30mm, within this range, the wall thickness of the mouth department of the air filter air inlet 11 is ensured, and the shaping part 2 is cut and removed by subsequently cutting the junction part 21 simply and quickly.

[0019] Preferably, the shaping part 2 has a circumferential shape identical to that of the air filter inlet 11, which is more conducive to the manufacture of the blow mould, and since the shaping part is located closer to the outer edge at the top of the air filter inlet, the amount of material required for manufacture is also not excessive, in line with cost planning.

[0020] As a preferred solution, in order to further avoid the formation of flash when cutting the inside of the mouth of the air filter inlet 11, the outer side of the shaping part 2 is greater than the outer side of the inlet 11 by more than 1 mm, so that the blank flows along the outer cavity wall of the mould, and therefore the inner wall of the shaping part is greater than the inner wall of the inlet 11, so that after cutting off the shaping part 2, the inner wall of the inlet 11 will not have an inside flash.

Claims

1. Blow-molded structure of an air cleaner inlet, comprising a shaped portion (2) blow-molded with the mouth of an air cleaner inlet (11), characterized in that: The joint part (21) between the shaped part (2) and the top of the air filter air inlet (11) is located at the top of the air filter air inlet (11).

2. The blow molding and setting structure according to claim 1, characterized by: The air filter air inlet (11) is square, and the shaped part (2) is a square box-shaped structure.

3. Blow molded shaped structure according to claim 1 or 2, characterized in that: The joint part (21) between the shaped part (2) and the top surface of the air filter air inlet (11) extends outward and forms a thickness difference d.

4. Blow molding structure according to claim 1 or 2, characterized in that: The circumferential shape of the shaped part (2) is consistent with the circumferential shape of the air filter air inlet (11).

5. The blow molded structural formation of claim 4, wherein: The shaped part (2) is hollow inside, and the inner wall of the joint part (21) and the inner edge of the air filter air inlet (11) are smoothly connected.

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