JPS61199397U

JPS61199397U -

Info

Publication number: JPS61199397U
Application number: JP8180585U
Authority: JP
Priority date: 1985-05-30
Filing date: 1985-05-30
Publication date: 1986-12-13

Description

[Brief explanation of the drawing]

第１図及び第２図は、本考案に係る突切り打抜
き型の一例のそれぞれ打抜き前及び打抜き時の各
状態を示す断面概要図、第３図はそれらの具体例
に使用された穴抜き用打抜き刃の拡大断面図であ
る。また、第４図は本考案に係る突切り打抜き型
の他の例の断面概要図、第５図はその具体例に使
用された穴抜き用打抜き刃の拡大断面図である。〈主要符号の説明〉、３，３ａ…突切り代抜き
型、４，４ａ…基台、６，６ａ…穴抜き用打抜き
刃、７…当板、８…被加工シート、９，９ａ…穴
抜き屑通路、１０，１０ａ…ヘツダ、１１…エア
吸引部、１２…切れ刃面、１３…垂直裏刃面、１
６…穴抜き屑、１８…中間台、１９…案内孔、２
０…凹部、２２…底台、２３…エア吸引口、２４
…裏刃面。 Figures 1 and 2 are cross-sectional schematic diagrams showing the state before and during punching of an example of the parting die according to the present invention, respectively, and Figure 3 is the hole punching die used in those specific examples. It is an enlarged sectional view of a punching blade. Further, FIG. 4 is a schematic sectional view of another example of the parting punching die according to the present invention, and FIG. 5 is an enlarged sectional view of a punching blade for punching holes used in the specific example. <Explanation of main symbols>, 3, 3a... parting allowance punching die, 4, 4a... base, 6, 6a... punching blade for hole punching, 7... backing plate, 8... workpiece sheet, 9, 9a... hole Cutting waste passage, 10, 10a... Header, 11... Air suction part, 12... Cutting edge surface, 13... Vertical back blade surface, 1
6... Hole punching waste, 18... Intermediate stand, 19... Guide hole, 2
0... recess, 22... bottom stand, 23... air suction port, 24
...Back blade surface.

Claims

[Scope of Claim for Utility Model Registration] (1) In a cut-off punching die configured to punch out a workpiece sheet on a backing plate with a punching blade protruding from the base, the punching blade for punching holes is A cut-off punching die characterized in that it has a punching waste passage passing through the inside thereof, and the punching waste passage is connected to an air suction part. (2) The cut-off punching die according to claim 1, wherein the punching waste passage is connected to the air suction section via a header. (3) The header includes an intermediate stand attached to the base and having a guide hole communicating with the punched waste passage and a recess communicating with the guide hole, and an intermediate stand attached to the intermediate stand so as to close the recess. The cut-off punching die according to claim 2, which is a utility model registered claim, comprising a bottom base having a bottom base and having an air suction port communicating with the recessed portion opened to the outside. (4) The cut-off punching die according to claim 1 or 2 of the utility model registration claim, wherein the air suction section operates in conjunction with the punching operation. (5) The air suction unit starts suction at the same time, immediately before or after punching the work sheet, and stops suction at the latest before feeding the next work sheet, Claim 4 of the Utility Model Registration Claim Cut-off die as described. (6) As a punching blade for punching holes, it has a punching waste passage that gradually tapers in the direction of the cutting edge, with a cutting edge surface on the outside and a back blade surface forming the tapered part of the punching waste passage on the inside. It has a single-edged cutting edge.
A cut-off punching die according to claim 1 of the utility model registration claim.