CN202762807U

CN202762807U - Longitudinal-cutting blade structure of air conditioning fin

Info

Publication number: CN202762807U
Application number: CN201220448992.0U
Authority: CN
Inventors: 韩素梅
Original assignee: Wuxi Micro Research Co Ltd
Current assignee: Wuxi Micro Research Co Ltd
Priority date: 2012-09-05
Filing date: 2012-09-05
Publication date: 2013-03-06
Anticipated expiration: 2022-09-05

Abstract

A longitudinal-cutting blade structure of an air conditioning fin comprises a longitudinal-cutting blade, wherein portions at two ends of the longitudinal-cutting blade are in a circular-arc structure. A groove is arranged in the cutting edge of the longitudinal-cutting blade and at the position of secondary and repeated cutting. According to the longitudinal-cutting blade structure of the air conditioning fin, shapes of a longitudinal-cutting upper knife edge and a longitudinal-cutting lower cutting edge in a prior art are improved, due to the fact that the groove is arranged in the cutting face of the longitudinal-cutting blade and at the position of the secondary and repeated cutting, the situation of repeated cutting in the actions of a single jump and a double jump can be avoided, and the problem of repeated cutting of burrs can be solved.

Description

A kind of longitudinal knife chip architecture of air-conditioner fin

Technical field

The utility model relates to air-conditioner fin die, relates in particular to the longitudinal knife blade shape design in the slit sub-die in the air-conditioner fin die.

Background technology

Air-conditioner fin is the vitals on the Gilled heat exchanger in the aircondition, and its major function is to increase heat exchange area, improve heat exchanger effectiveness.Air-conditioner fin generally is made by the air-conditioner fin die punching press.Air-conditioner fin die comprises a plurality of submodules, and slit sub-die wherein is used for finishing the rip cutting operation of making air-conditioner fin.Rip cutting claims out again bar, its effect be utilize rip cutting up and down cutter to cutting, with the wide desired fin width of client that is cut into of the material of view picture, simultaneously, rip cutting up and down cutter to cut length at the control lapping defect, reduce play a part aspect the fin distortion very important.

Rip cutting up and down cutter adjust to suitablely for after cutting length, for the different length requirement of fin, such as the length of a film requirement of odd number hole count, mould will have the action of single double jump usually.Now take step pitch as 25mm, the mould of two steppings explains single double jump as example, the normal feeding step pitch of this mould is 50mm, for the finned length of wanting the odd number hole count or the customer requirement that can debug the fin that abnormity cuts, this need to could realize by the action of single-hop in the feeding process, namely only sending a step is 25 mm, so, then has a material section secondary can occur and repeats to cut, this can cause fin burr to occur or the palpus that becomes mildewed, and finally affects total quality and the outward appearance of fin.

The rip cutting of the prior art up and down blade shape of cutter is the straight knife shape, and it can not solve the Burr Problem that repeats to cut in single double jump action and cause.

The utility model content

The applicant improves for above-mentioned shortcoming of the prior art, provide a kind of rip cutting up and down cutter append little groove structure, it has overcome the up and down existing deficiency of cutter of rip cutting of the prior art, can avoid repeating to cut, and makes to repeat to cut Burr Problem and solved.

The technical solution of the utility model is as follows:

A kind of longitudinal knife chip architecture of air-conditioner fin comprises the rip cutting blade of installing in opposite directions up and down, and the two-end part of described rip cutting blade becomes arc structure, and the position that secondary repeats to cut on the rip cutting blade cutting edge has groove.

Its further technical scheme is:

The A/F of described groove is less than its degree of depth.

Technique effect of the present utility model:

The utility model for the rip cutting of existing straight knife shape cutting edge up and down cutter can't avoid repeating to cut in single double jump action and deficiency that Burr Problem occurs is improved, the position of repeating to cut by secondary on the rip cutting blade facets has groove, make to repeat to cut in the single double jump action and avoided, thereby so that repeat to cut Burr Problem and solved.

Description of drawings

Fig. 1 is main TV structure figure of the present utility model.

Fig. 2 is the partial enlarged drawing of I section among Fig. 1.

The specific embodiment

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described.

Consult Fig. 1, Fig. 2, the utility model comprises rip cutting blade 1, and the two-end part of described rip cutting blade 1 becomes arc structure, and the position that secondary repeats to cut on rip cutting blade 1 cutting edge has groove 2, and the A/F of groove 2 is less than its degree of depth.

For the finned length requirement of odd number hole count, under the top slitter on the slit sub-die cope match-plate pattern and the rip cutting on the lower bolster cutter to cutting length adjustment behind correct position, also need to rely on the action of single double jump in the feeding process to realize, namely only send a step.Take step pitch as 25mm, the mould of two steppings is example, normal feeding step pitch is 50mm, the single-hop feeding namely only send a step to be 25mm.So, there is a material section secondary will occur and repeats to cut, after the position that secondary on the rip cutting blade facets repeats to cut has groove, then can effectively avoid repeating to cut, thereby the Burr Problem that repeats to cut is solved.

Above description is to explanation of the present utility model, is not the restriction to utility model, and the utility model limited range within protection domain of the present utility model, can be done any type of modification referring to claim.

Claims

1. the longitudinal knife chip architecture of an air-conditioner fin, comprise the rip cutting blade (1) of installing in opposite directions up and down, the two-end part of described rip cutting blade (1) becomes arc structure, it is characterized in that: the position that secondary repeats to cut on rip cutting blade (1) cutting edge has groove (2).

2. by the longitudinal knife chip architecture of a kind of air-conditioner fin claimed in claim 1, it is characterized in that: the A/F of groove (2) is less than its degree of depth.