CN211218252U

CN211218252U - Air conditioner fin rip cutting cutter

Info

Publication number: CN211218252U
Application number: CN201922142996.0U
Authority: CN
Inventors: 吴建军; 金铁军; 李文霞
Original assignee: Huangshan Sanjia Yihua Precision Machine Co ltd
Current assignee: Huangshan Sanjia Yihua Precision Machine Co ltd
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2020-08-11
Anticipated expiration: 2029-12-02

Abstract

The utility model discloses an air conditioner fin longitudinal cutting tool, which comprises a longitudinal cutting upper knife and a longitudinal cutting lower knife which are arranged along the advancing direction of fins, wherein a plurality of groups of deburring structures are arranged on the cutting edge of the longitudinal cutting upper knife or the longitudinal cutting lower knife, and each group of deburring structures comprises a plurality of deburring notches which are arranged side by side; the distance between two adjacent groups of deburring structures is matched with the stepping length of the air conditioner fin. The depth of the deburring notch is larger than the contact ratio of the upper longitudinal cutting knife and the lower longitudinal cutting knife during longitudinal cutting and die assembly. The utility model discloses simple structure, the change is convenient, and the burr of getting rid of air conditioner fin repeated cutting production that can be fine can wide application in air conditioner fin processing field.

Description

Air conditioner fin rip cutting cutter

Technical Field

The utility model belongs to the technical field of air conditioner fin processing technique and specifically relates to an air conditioner fin rip cutting cutter is related to.

Background

The air conditioner fins are stripped in the fin die by the longitudinal cutting sub-die. The longitudinal cutter in the longitudinal cutting sub-die punches and divides the strip, and the working mode is as follows: every time the die is punched, the material advances N step lengths to the discharging direction, N is a positive integer, the upper slitting knife and the lower slitting knife of the slitting knife cut once, in order to ensure complete cutting, the length of the general slitting knife can be larger than N step lengths, namely the length of the slitting knife can be larger than N step lengths, and therefore, the material can have a repeated cutting part in the processing process. Due to the installation precision problem of the upper and lower longitudinal cutters and the small-amplitude left-right swing phenomenon of the air conditioner fin in the die during the moving of the die, repeated cutting can generate re-cut burrs, and the reject ratio is high. For this reason, the conventional method is to add a deburring process, which is not only inefficient, but also increases the cost accordingly.

In order to solve the problems, the Chinese patent application No. 2015108061671 discloses a hob assembly of an air conditioner fin rolling cutting sub-die, wherein the hob assembly comprises an upper hob assembly and a lower hob assembly which are matched with each other in a rolling manner; the upper hob assembly comprises an upper hob fixing sleeve, an upper bearing is arranged in the upper hob fixing sleeve, an upper fixing shaft is arranged in the upper bearing, and upper blades are respectively fixed on two sides of the upper hob fixing sleeve; the lower hob assembly comprises a lower hob fixing sleeve, a lower bearing is arranged in the lower hob fixing sleeve, a lower fixing shaft is arranged in the lower bearing, and lower blades are respectively fixed on two sides of the lower hob fixing sleeve; the cutting edge of the upper blade is arranged opposite to the cutting edge of the lower blade. The structure well solves the problem of burr generation during longitudinal cutting, but the structure is relatively complex relative to a mold, and the cost of the mold is correspondingly increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an air conditioner fin rip cutting cutter, its purpose is making under the modified condition to current cutter, effectively gets rid of the burr of repeated cutting position, guarantees the quality of air conditioner fin processing.

The utility model provides a technical scheme that its technical problem adopted is: a longitudinal cutting tool for air conditioner fins comprises a longitudinal cutting upper knife and a longitudinal cutting lower knife which are arranged along the advancing direction of fins, wherein a plurality of groups of deburring structures are arranged on the cutting edge of the longitudinal cutting upper knife or the longitudinal cutting lower knife, and each group of deburring structures comprises a plurality of deburring notches which are arranged side by side; the distance between two adjacent groups of deburring structures is matched with the stepping length of the air conditioner fin.

In order to ensure that burrs can be removed, the depth of the deburring notch is larger than the contact ratio of the longitudinal cutting upper knife and the longitudinal cutting lower knife during longitudinal cutting and die assembly.

Preferably, the width of the deburring notch is 0.1-0.5 mm, and the distance between two adjacent deburring notches in the same group is 2-4 mm.

For convenient processing burring incision, simultaneously, better deburring, the burring incision perpendicular to blade setting of rip cutting upper slitter or rip cutting lower slitter intermediate position, the both ends of rip cutting upper slitter or rip cutting lower slitter are provided with the oblique angle, and the burring incision that is located on the oblique angle inclines to the outside of rip cutting upper slitter or rip cutting lower slitter.

The utility model has the advantages that: the utility model discloses on the basis of current cutter, increase a set of burring structure, the fine burr that removes air conditioner fin repeated cutting position and produce compares and changes the hobbing cutter subassembly, has simple structure, and the cutter adjustment is little, advantage with low costs. A plurality of deburring notches are arranged on each group of deburring structures, and burrs can be better broken and removed.

The present invention will be described in more detail with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic structural diagram of the upper slitting knife and the lower slitting knife in a separated state.

Fig. 2 is a schematic structural diagram of the upper longitudinal cutting knife and the lower longitudinal cutting knife of the present invention in a die closing state.

Fig. 3 is a partially enlarged view of a in fig. 1.

Detailed Description

Embodiment, as shown in fig. 1 to 3, the air conditioner fin longitudinal cutting tool comprises a longitudinal cutting upper knife 1 and a longitudinal cutting lower knife 2 which are arranged along the fin advancing direction, wherein the longitudinal cutting upper knife 1 is fixed on a longitudinal cutting upper die and moves up and down along with the upper die, and the longitudinal cutting lower knife 2 is fixed on a longitudinal cutting lower die. The length of the upper longitudinal cutting knife 1 and the length of the lower longitudinal cutting knife 2 are matched with the stepping length of the 2 air-conditioning fins, namely the upper longitudinal cutting knife 1 and the lower longitudinal cutting knife 2 can finish cutting the stepping length of the two air-conditioning fins at one time. The two ends of the upper longitudinal cutting knife 1 and the lower longitudinal cutting knife 2 are respectively provided with an oblique angle 4 (the oblique angles 4 supplement), the oblique angles 4 at the two ends of the upper longitudinal cutting knife 1 are respectively provided with a group of deburring structures 3, and meanwhile, the middle position of the upper longitudinal cutting knife 1 is also provided with a group of deburring structures 3. The cutting edge of the longitudinal cutting lower knife 2 is of a flat structure. The arrangement of the deburring structures 3 is configured according to the stepping length of the air-conditioning fin, namely the distance between two adjacent groups of deburring structures 3 is matched with the stepping length of the air-conditioning fin. If the lengths of the upper longitudinal cutting knife 1 and the lower longitudinal cutting knife 2 are matched with the stepping lengths of the 3 air-conditioning fins, two groups of deburring structures 3 need to be arranged at the middle position of the upper longitudinal cutting knife 1 so as to ensure that the stepping length of each air-conditioning fin is provided with the deburring structure 3. The configuration mode enables the fins of the air conditioner to well remove burrs generated by longitudinal cutting when the advancing step distance is smaller than or equal to the length of the longitudinal cutting upper knife 1 each time. Like the length of the rip cutting upper slitter 1 of this embodiment and the step length looks adaptation of 2 air conditioner fins, when the air conditioner fin was walked two step length's distance and was walked 1 step length's distance at every turn, the burr that the all can be fine produced the rip cutting was got rid of to the commonality of cutter has been increased.

The specific structure of the deburring structure 3 is as follows: each group of deburring structures 3 comprises a plurality of deburring cuts 31 arranged side by side, the deburring cuts 31 are at least two, and the depth of each deburring cut 31 is greater than the contact ratio of the upper longitudinal cutting knife 1 and the lower longitudinal cutting knife 2 in the longitudinal cutting die assembly. That is, after the upper slitting knife 1 and the lower slitting knife 2 are longitudinally clamped in place, the depth of the deburring cut 31 is higher than the position where the upper slitting knife 1 and the lower slitting knife 2 overlap, as shown in fig. 2. The width of the deburring cut 31 is 0.1-0.5 mm. The distance between two adjacent deburring notches 31 in the same group is 2-4 mm. Meanwhile, for better deburring removal, the deburring notch 31 in the middle of the longitudinal cutting upper knife 1 is perpendicular to the cutting edge, and the deburring notches 31 on the oblique angles 4 at the two ends of the longitudinal cutting upper knife 1 are inclined towards the outer side of the longitudinal cutting upper knife 1.

Of course, the deburring structure can also be arranged on the lower longitudinal cutting knife 2, and the upper longitudinal cutting knife 1 is of a flat cutting edge structure.

The invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above-described manner. Various insubstantial improvements are made by adopting the method conception and the technical proposal of the utility model; or without improvement, the above conception and technical solution of the present invention can be directly applied to other occasions, all within the protection scope of the present invention.

Claims

1. The utility model provides an air conditioner fin rip cutting cutter, includes rip cutting upper slitter (1) and rip cutting lower slitter (2) that arrange along fin advancing direction, its characterized in that: a plurality of groups of deburring structures (3) are arranged on the cutting edge of the upper longitudinal cutting knife (1) or the lower longitudinal cutting knife (2), and each group of deburring structures (3) comprises a plurality of deburring cuts (31) which are arranged side by side; the distance between two adjacent groups of deburring structures (3) is matched with the stepping length of the air conditioner fin.

2. The air conditioner fin slitting tool of claim 1, wherein: the depth of the deburring notch (31) is larger than the contact ratio of the upper longitudinal cutting knife (1) and the lower longitudinal cutting knife (2) in the process of longitudinally cutting and die assembling.

3. The air conditioner fin slitting tool of claim 2, wherein: the width of the deburring cut (31) is 0.1-0.5 mm, and the distance between two adjacent deburring cuts (31) in the same group is 2-4 mm.

4. The air conditioner fin slitting tool of claim 1, wherein: the deburring device is characterized in that a deburring notch (31) in the middle of the upper longitudinal cutting knife (1) or the lower longitudinal cutting knife (2) is perpendicular to the cutting edge, oblique angles (4) are arranged at two ends of the upper longitudinal cutting knife (1) or the lower longitudinal cutting knife (2), and the deburring notch (31) on the oblique angles (4) inclines to the outer side of the upper longitudinal cutting knife (1) or the lower longitudinal cutting knife (2).